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CN115120594B - Application of a kind of Zelavespib in the preparation of medicine for anti-adenovirus infection - Google Patents

Application of a kind of Zelavespib in the preparation of medicine for anti-adenovirus infection Download PDF

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CN115120594B
CN115120594B CN202210503373.5A CN202210503373A CN115120594B CN 115120594 B CN115120594 B CN 115120594B CN 202210503373 A CN202210503373 A CN 202210503373A CN 115120594 B CN115120594 B CN 115120594B
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吴建国
陈绪林
刘敏丽
万品
杨戈
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Abstract

The invention belongs to the technical field of biomedicine, and discloses application of Zelavespib in preparing a medicament for resisting adenovirus infection, wherein the medicament for relieving and/or preventing and/or treating the adenovirus infection acts by inhibiting the activity of adenovirus replication. The adenovirus is various adenovirus types including but not limited to AdV3 subtype, adV5 subtype. The medicament for alleviating and/or preventing and/or treating adenovirus infection comprises Zelavespib and a pharmaceutically acceptable carrier. The invention provides application of a small molecular compound Zelavespib in preparation of a medicament for treating adenovirus infection, and provides a safe and effective small molecular compound for treating adenovirus clinically. Zelavespib can effectively inhibit the replication of adenovirus in a non-toxic range, can be further developed into a medicament for treating diseases caused by adenovirus infection, and has wide application prospect.

Description

一种Zelavespib在制备用于抗腺病毒感染的药物中的用途Application of a kind of Zelavespib in the preparation of medicine for anti-adenovirus infection

技术领域technical field

本发明属于生物医学技术领域,尤其涉及一种Zelavespib在制备用于抗腺病毒感染的药物中的用途。The invention belongs to the technical field of biomedicine, and in particular relates to the use of Zelavespib in the preparation of medicines for resisting adenovirus infection.

背景技术Background technique

目前,人腺病毒(Human adenovirus,HAdV)属于腺病毒科的哺乳动物腺病毒属。腺病毒是一种无包膜有二十面体核衣壳的DNA病毒,病毒基因组的核心是线状双链DNA分子,约36kb,且其基因组是被高度浓缩包装的,并被数百个类似组蛋白的蛋白VII和类似鱼精蛋白的蛋白Mu(亦称为蛋白X)组织成染色质。腺病毒的衣壳有240个六邻体蛋白(hexon),且二十面体衣壳的12个顶端是五聚体蛋白(penton)和三聚体蛋白(fiber)构成的复合物。12个fiber蛋白以penton蛋白为基底由衣壳表面伸出,fiber顶端形成头节区(knob)。penton蛋白和fiber蛋白的knob区可与细胞表面的病毒受体结合,在病毒感染细胞过程中起着非常重要的作用。较小的衣壳蛋白IIIa,VI,VIII和IX嵌入衣壳中,其中衣壳蛋白VI位于衣壳的内表面,并通过衣壳蛋白V将衣壳连接到包含病毒基因组的核心。衣壳中还有少量衣壳蛋白IVa2参与基因组包装和腺病毒蛋白酶(AVP)形成。At present, human adenovirus (Human adenovirus, HAdV) belongs to the mammalian adenovirus genus of the family Adenoviridae. Adenovirus is a DNA virus with no envelope and icosahedral nucleocapsid. The core of the virus genome is a linear double-stranded DNA molecule, about 36kb, and its genome is highly condensed and packaged, and it is composed of hundreds of similar The histone protein VII and the protamine-like protein Mu (also known as protein X) organize chromatin. The capsid of adenovirus has 240 hexon proteins (hexons), and the 12 tips of the icosahedral capsid are complexes composed of pentameric proteins (penton) and trimeric proteins (fiber). Twelve fiber proteins protrude from the surface of the capsid based on the penton protein, and the top of the fiber forms the head section (knob). The knob regions of penton protein and fiber protein can bind to virus receptors on the cell surface, and play a very important role in the process of virus infection of cells. The smaller capsid proteins IIIa, VI, VIII and IX are embedded in the capsid, with capsid protein VI located on the inner surface of the capsid, and capsid protein V connecting the capsid to the core containing the viral genome. There is also a small amount of capsid protein IVa2 involved in genome packaging and adenovirus protease (AVP) formation in the capsid.

腺病毒感染可以在任何季节发生,但往往冬季和早春是病毒感染的高峰季节。基于血清中和、血凝表位、基因组序列和功能,人腺病毒分为A,B,C,D,E,F和G七个种,共57个血清型。我国流行的腺病毒类型主要有1型、3型、4型、5型、7型、11型、14型、40型、41型、55型,其中以3型和5型腺病毒流行为主。研究发现各型腺病毒除hexon,fiber,penton基因外,基因组高度保守,并且极少发生种内重组。因此有利于克服药物对腺病毒型别特异性的限制,通常针对腺病毒进入以后阶段的抗病毒药物都在腺病毒种内具有广谱抗腺病毒活性。Adenovirus infection can occur in any season, but often winter and early spring are the peak seasons for viral infections. Based on serum neutralization, hemagglutination epitopes, genome sequence and function, human adenoviruses are divided into seven species, A, B, C, D, E, F and G, with a total of 57 serotypes. The types of adenoviruses prevalent in my country mainly include type 1, type 3, type 4, type 5, type 7, type 11, type 14, type 40, type 41, and type 55, among which adenovirus type 3 and type 5 are prevalent . Studies have found that except for hexon, fiber, and penton genes, the genomes of various types of adenovirus are highly conserved, and intraspecific recombination rarely occurs. Therefore, it is beneficial to overcome the limitation of drugs on the type-specificity of adenoviruses. Generally, antiviral drugs targeting adenoviruses into later stages have broad-spectrum anti-adenovirus activity within the adenovirus species.

腺病毒感染有多种临床症状和疾病表现,这在很大程度上取决于腺病毒的类型,宿主的免疫状态和感染部位。腺病毒常见的感染部位包括呼吸道、角膜上皮和肠道。90%的病毒性结膜炎病例由腺病毒感染引起,通常和B、D或E型腺病毒感染有关,常以咽结膜炎或流行性角膜结膜炎(EKC)的形式出现于入伍的新兵中。B、D或E型腺病毒还常常引起急性呼吸道疾病和病毒性肺炎。呼吸道腺病毒感染的两个更严重的后果是肺炎,这在儿童中可能是致命的。以及急性呼吸窘迫综合征,在应征入伍者中更常见。A,F和G型腺病毒与胃肠道感染有关。腺病毒感染是儿童胃肠炎的主要原因,仅次于诺如病毒和轮状病毒。总体而言,腺病毒对所有人群易感,其中在感染的新生儿、儿童和免疫功能低下人群(造血干细胞和器官移植患者)中往往能造成更严重的疾病甚至死亡。Adenovirus infection has a variety of clinical symptoms and disease manifestations, which largely depend on the type of adenovirus, the immune status of the host, and the site of infection. Common sites of adenovirus infection include the respiratory tract, corneal epithelium, and intestinal tract. Ninety percent of viral conjunctivitis cases are caused by adenovirus infection, usually associated with type B, D, or E adenovirus infection, and often occurs in recruits as pharyngeal conjunctivitis or epidemic keratoconjunctivitis (EKC). B, D or E type adenoviruses also often cause acute respiratory disease and viral pneumonia. Two of the more serious consequences of respiratory adenovirus infection are pneumonia, which can be fatal in children. and acute respiratory distress syndrome, which is more common among conscripts. Type A, F and G adenoviruses have been associated with gastrointestinal infections. Adenovirus infection is the leading cause of gastroenteritis in children, second only to norovirus and rotavirus. Overall, adenoviruses are susceptible to all populations, with more severe disease and even death often occurring in infected neonates, children, and immunocompromised populations (hematopoietic stem cell and organ transplant patients).

目前尚无批准用于治疗腺病毒感染的抗病毒药物。被批准用于治疗其他病毒感染的某些DNA/RNA合成抑制抗病毒药物(如西多福韦、更昔洛韦和利巴韦林)已通过拓展适应症作为试验用药用于临床治疗严重的腺病毒感染。然而,这些药物大多疗效有限且不良反应严重。因此,有必要开发其它更安全和更有效的抗腺病毒药物。There are currently no antiviral drugs approved for the treatment of adenovirus infection. Certain DNA/RNA synthesis-inhibiting antiviral drugs (such as cidofovir, ganciclovir, and ribavirin) approved for the treatment of other viral infections have been approved for clinical treatment of severe Adenovirus infection. However, most of these drugs have limited efficacy and serious adverse reactions. Therefore, it is necessary to develop other safer and more effective anti-adenoviral drugs.

Zelavespib(PU-H71,NSC 750424)为治疗淋巴瘤、实体瘤、骨髓增殖性肿瘤、乳腺癌和骨髓纤维化的潜在新型治疗剂,是一种新型且有效的HSP90抑制剂,可抑制多种人类肿瘤细胞系的增殖。Zelavespib通过诱导肿瘤细胞中的相关致癌客户蛋白降解,导致许多关键致癌途径的阻断,从而使肿瘤消退。然而,目前并未发现任何关于Zelavespib治疗腺病毒感染的相关报道。Zelavespib (PU-H71, NSC 750424) is a potential novel therapeutic agent for the treatment of lymphoma, solid tumors, myeloproliferative neoplasms, breast cancer and myelofibrosis. It is a novel and potent HSP90 inhibitor that can inhibit a variety of human Proliferation of tumor cell lines. Zelavespib induces tumor regression by inducing the degradation of relevant oncogenic client proteins in tumor cells, resulting in the blockage of many key oncogenic pathways. However, there is no report about the treatment of adenovirus infection with Zelavespib.

通过上述分析,现有技术存在的问题及缺陷为:Through the above analysis, the problems and defects in the prior art are:

(1)目前并未有关于Zelavespib治疗腺病毒感染的相关报道。(1) There are currently no relevant reports on the treatment of adenovirus infection with Zelavespib.

(2)现有技术有关治疗腺病毒感染药物药效低,效果差。(2) The medicines for the treatment of adenovirus infection in the prior art have low efficacy and poor effect.

发明内容Contents of the invention

针对现有技术存在的问题,本发明提供了一种Zelavespib在制备用于抗腺病毒感染的药物中的用途。Aiming at the problems in the prior art, the present invention provides a use of Zelavespib in the preparation of medicines for resisting adenovirus infection.

本发明是这样实现的,一种Zelavespib在制备用于缓解和/或预防和/或治疗腺病毒感染的药物中的应用。The present invention is achieved in the following way, an application of Zelavespib in the preparation of medicines for alleviating and/or preventing and/or treating adenovirus infection.

进一步,所述Zelavespib结构式如下:Further, the Zelavespib structural formula is as follows:

Figure BDA0003635077750000031
Figure BDA0003635077750000031
.

进一步,所述腺病毒包括B型腺病毒AdV3亚型、C型腺病毒AdV5亚型。Further, the adenovirus includes AdV3 subtype of type B adenovirus and AdV5 subtype of type C adenovirus.

进一步,所述腺病毒为人腺病毒1型、3型、4型、5型、7型、11型、14型、40型、41型和55型中的一种或多种。Further, the adenovirus is one or more of human adenovirus types 1, 3, 4, 5, 7, 11, 14, 40, 41 and 55.

进一步,所述用于缓解和/或预防和/或治疗腺病毒感染的药物通过抑制腺病毒复制的活性起作用。Further, the drug for alleviating and/or preventing and/or treating adenovirus infection works by inhibiting the activity of adenovirus replication.

进一步,所述用于缓解和/或预防和/或治疗腺病毒感染的药物包括Zelavespib和药学上可接受的载体。Further, the drug for alleviating and/or preventing and/or treating adenovirus infection includes Zelavespib and a pharmaceutically acceptable carrier.

进一步,所述用于缓解和/或预防和/或治疗腺病毒感染的药物的剂型为任意一种临床可接受的口服给药剂型、注射给药剂型或外用给药剂型。Further, the dosage form of the medicament for alleviating and/or preventing and/or treating adenovirus infection is any clinically acceptable oral dosage form, injection dosage form or external dosage dosage form.

进一步,所述用于缓解和/或预防和/或治疗腺病毒感染的药物为片剂、胶囊、颗粒剂、口服液、注射剂。Further, the medicines for alleviating and/or preventing and/or treating adenovirus infection are tablets, capsules, granules, oral liquids, and injections.

本发明的另一目的在于提供一种Zelavespib在制备腺病毒抑制剂中的用途。Another object of the present invention is to provide a use of Zelavespib in the preparation of adenovirus inhibitors.

结合上述的技术方案和解决的技术问题,请从以下几方面分析本发明所要保护的技术方案所具备的优点及积极效果为:Combining the above-mentioned technical solutions and technical problems to be solved, please analyze the advantages and positive effects of the technical solutions to be protected by the present invention from the following aspects:

第一、针对上述现有技术存在的技术问题以及解决该问题的难度,紧密结合本发明的所要保护的技术方案以及研发过程中结果和数据等,详细、深刻地分析本发明技术方案如何解决的技术问题,解决问题之后带来的一些具备创造性的技术效果。具体描述如下:First, in view of the technical problems existing in the above-mentioned prior art and the difficulty of solving the problems, closely combine the technical solution to be protected in the present invention and the results and data in the research and development process, etc., to analyze in detail and profoundly how to solve the technical solution of the present invention Technical problems, some creative technical effects brought about after solving the problems. The specific description is as follows:

本发明针对现有技术没有腺病毒感染的抗病毒药物的现状,结合研发过程中Zelavespib在Vero细胞中低细胞毒性和对两种腺病毒高抗病毒活性等实验数据,提供了一种新型抗腺病毒药物-Zelavespib,提供了腺病毒感染的抗病毒药物的新技术,为治疗腺病毒感染引发疾病提供全新的疗法和更多的治疗选择。The present invention aims at the current situation of antiviral drugs without adenovirus infection in the prior art, and combines the experimental data of Zelavespib's low cytotoxicity in Vero cells and high antiviral activity against two adenoviruses during the research and development process to provide a new anti-adenovirus Virus drug - Zelavespib, provides a new technology of antiviral drug for adenovirus infection, providing a new therapy and more treatment options for the treatment of diseases caused by adenovirus infection.

本发明提供了一种小分子化合物Zelavespib在制备治疗腺病毒感染药物中的应用,为临床上腺病毒的治疗提供一种安全有效的小分子化合物。Zelavespib在无毒性范围内能够有效地抑制腺病毒的复制,可进一步开发为治疗腺病毒感染引发疾病的药物,具有广泛的应用前景。The invention provides the application of a small molecule compound Zelavespib in the preparation of a drug for treating adenovirus infection, and provides a safe and effective small molecule compound for the clinical treatment of adenovirus. Zelavespib can effectively inhibit the replication of adenovirus within a non-toxic range, and can be further developed as a drug for treating diseases caused by adenovirus infection, and has broad application prospects.

本发明的Zelavespib是小分子化合物,其对Vero细胞的CC50(半数致死浓度)为41.63μM。Zelavespib对两种腺病毒(AdV3和AdV5)都能够剂量依赖地抑制病毒复制。其在Vero细胞中对AdV3的IC50(半数抑制浓度)仅为0.35μM,对AdV5的IC50为0.69μM。通过计算,Zelavespib的选择指数(SI)在AdV3和AdV5上分别为118.67和60.11,说明Zelavespib具有广谱的抗腺病毒复制的活性。Zelavespib of the present invention is a small molecular compound, and its CC 50 (median lethal concentration) for Vero cells is 41.63 μM. Zelavespib dose-dependently inhibits viral replication for both adenoviruses (AdV3 and AdV5). Its IC 50 (half inhibitory concentration) against AdV3 in Vero cells is only 0.35 μM, and its IC 50 against AdV5 is 0.69 μM. By calculation, the selection index (SI) of Zelavespib on AdV3 and AdV5 was 118.67 and 60.11, respectively, indicating that Zelavespib has broad-spectrum anti-adenovirus replication activity.

第二,把技术方案看做一个整体或者从产品的角度,本发明所要保护的技术方案具备的技术效果和优点,具体描述如下:Second, regarding the technical solution as a whole or from the perspective of a product, the technical effects and advantages of the technical solution to be protected by the present invention are specifically described as follows:

本发明提供了一种新型抗腺病毒药物-Zelavespib,弥补了现有技术没有针对腺病毒感染的抗病毒药物的技术缺陷。The invention provides a novel anti-adenovirus drug-Zelavespib, which makes up for the technical defect that there is no anti-viral drug for adenovirus infection in the prior art.

本发明的Zelavespib作为研发中的新型抗肿瘤药物,已处在到I期临床试验,具有大量的临床安全性实验数据。若将其适应症拓展到治疗腺病毒感染用药,可显著降低临床安全性试验失败的风险,大大节省新药研发时间和成本。Zelavespib of the present invention, as a novel antitumor drug under research and development, has been in Phase I clinical trials and has a large amount of clinical safety experimental data. If its indications are extended to the treatment of adenovirus infection, the risk of failure in clinical safety trials can be significantly reduced, and the time and cost of new drug development can be greatly saved.

第三,作为本发明的权利要求的创造性辅助证据,还体现在以下几个重要方面:Third, as an auxiliary evidence of the inventiveness of the claims of the present invention, it is also reflected in the following important aspects:

(1)本发明的技术方案转化后的预期收益和商业价值为:本发明以满足临床需求为导向,聚焦核心治疗领域,立足于临床价值,药物经济学价值,产品的商业价值,具有巨大的商业价值和转化后的预期收益(1) The expected benefits and commercial value after the transformation of the technical solution of the present invention are: the present invention is oriented to meet clinical needs, focuses on the core therapeutic field, is based on clinical value, pharmacoeconomic value, and commercial value of the product, and has huge potential Business value and expected benefits after conversion

(2)本发明的技术方案填补了国内外业内技术空白:本发明提供了针对腺病毒感染的抗病毒药物的新技术。(2) The technical solution of the present invention fills up the technical gap in the industry at home and abroad: the present invention provides a new technology of antiviral drugs for adenovirus infection.

附图说明Description of drawings

图1是本发明实施例提供的Vero细胞与不同浓度梯度的Zelavespib在37℃含5%CO2的培养箱孵育48小时后,测定的Vero细胞相对于未加药物处理细胞的细胞活力示意图;Fig. 1 is a schematic diagram of the cell viability of Vero cells measured relative to cells without drug treatment after Vero cells provided by the embodiment of the present invention and Zelavespib with different concentration gradients were incubated for 48 hours at 37° C. in an incubator containing 5% CO 2 ;

图2是本发明实施例提供的Vero细胞中加入不同浓度梯度的Zelavespib,以MOI0.55感染AdV3,在37℃孵育48小时后,不同药物浓度梯度处理后Vero细胞相对病毒感染后未加药物细胞的对AdV3的抑制率百分比示意图;Figure 2 shows the Vero cells provided by the embodiment of the present invention with Zelavespib in different concentration gradients, infected with AdV3 at an MOI of 0.55, and incubated at 37°C for 48 hours. Schematic diagram of the inhibition rate percentage of AdV3;

图3是本发明实施例提供的Vero细胞中加入不同浓度梯度的Zelavespib,以MOI1.1感染AdV5,在37℃孵育48小时后,不同药物浓度梯度处理后Vero细胞相对病毒感染后未加药物细胞的对AdV5的抑制率百分比示意图。Figure 3 shows the Vero cells provided by the present invention with different concentration gradients of Zelavespib, infected with AdV5 at an MOI of 1.1, and incubated at 37°C for 48 hours. Schematic diagram of the percentage inhibition rate of AdV5.

具体实施方式Detailed ways

为了使本发明的目的、技术方案及优点更加清楚明白,以下结合实施例,对本发明进行进一步详细说明。应当理解,此处所描述的具体实施例仅仅用以解释本发明,并不用于限定本发明。In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

一、解释说明实施例。为了使本领域技术人员充分了解本发明如何具体实现,该部分是对权利要求技术方案进行展开说明的解释说明实施例。1. Explain the embodiment. In order to make those skilled in the art fully understand how to implement the present invention, this part is an explanatory embodiment for explaining the technical solution of the claims.

本发明实施例提供的Zelavespib在制备用于缓解和/或预防和/或治疗腺病毒感染的药物、腺病毒抑制剂中的用途。The use of Zelavespib provided in the embodiments of the present invention in the preparation of medicaments and adenovirus inhibitors for alleviating and/or preventing and/or treating adenovirus infection.

本发明实施例提供的Zelavespib化学结构式如下:The chemical structural formula of Zelavespib provided by the embodiments of the present invention is as follows:

Figure BDA0003635077750000061
Figure BDA0003635077750000061
.

本发明实施例提供的腺病毒可为人腺病毒1型、3型、4型、5型、7型、11型、14型、40型、41型和55型中的任意一种或多种。The adenovirus provided in the embodiment of the present invention can be any one or more of human adenovirus types 1, 3, 4, 5, 7, 11, 14, 40, 41 and 55.

本发明实施例提供的用于缓解和/或预防和/或治疗腺病毒感染的药物通过抑制腺病毒复制的活性起作用。The medicaments provided in the embodiments of the present invention for alleviating and/or preventing and/or treating adenovirus infection work by inhibiting the activity of adenovirus replication.

本发明实施例提供的用于缓解和/或预防和/或治疗腺病毒感染的药物包括Zelavespib和药学上可接受的载体。The medicament for alleviating and/or preventing and/or treating adenovirus infection provided by the embodiment of the present invention includes Zelavespib and a pharmaceutically acceptable carrier.

本发明实施例提供的用于缓解和/或预防和/或治疗腺病毒感染的药物的剂型为任意一种临床可接受的口服给药剂型、注射给药剂型或外用给药剂型。The dosage form of the drug for alleviating and/or preventing and/or treating adenovirus infection provided by the embodiments of the present invention is any clinically acceptable oral administration form, injection administration form or external administration dosage form.

本发明实施例提供的用于缓解和/或预防和/或治疗腺病毒感染的药物为片剂、胶囊、颗粒剂、口服液、注射剂。The medicaments provided in the embodiments of the present invention for alleviating and/or preventing and/or treating adenovirus infection are tablets, capsules, granules, oral liquids, and injections.

二、应用实施例。为了证明本发明的技术方案的创造性和技术价值,该部分是对权利要求技术方案进行具体产品上或相关技术上的应用实施例。2. Application examples. In order to prove the creativity and technical value of the technical solution of the present invention, this part is the application example of the claimed technical solution on specific products or related technologies.

将本发明实施例提供的Zelavespib应用于制备用于缓解和/或预防和/或治疗腺病毒感染的药物、腺病毒抑制剂。Zelavespib在无毒性范围内能够有效地抑制腺病毒的复制,可进一步开发为治疗腺病毒感染引发疾病的药物,具有广泛的用途前景。鉴于目前尚没有用于腺病毒感染治疗的药物批准上市,本发明为腺病毒感染的治疗提供了新技术。The Zelavespib provided by the embodiments of the present invention is applied to the preparation of drugs and adenovirus inhibitors for alleviating and/or preventing and/or treating adenovirus infection. Zelavespib can effectively inhibit the replication of adenovirus within a non-toxic range, and can be further developed as a drug for treating diseases caused by adenovirus infection, and has broad application prospects. In view of the fact that there is no approved drug for the treatment of adenovirus infection, the present invention provides a new technology for the treatment of adenovirus infection.

三、实施例相关效果的证据。本发明实施例在研发或者使用过程中取得了一些积极效果,和现有技术相比的确具备很大的优势,下面内容结合试验过程的数据、图表等进行描述。3. Evidence of the relevant effects of the embodiment. The embodiment of the present invention has achieved some positive effects in the process of research and development or use, and indeed has great advantages compared with the prior art. The following content is described in conjunction with the data and charts of the test process.

本发明在非洲绿猴肾细胞系Vero上检测了Zelavespib对细胞的毒性,同时测定了Zelavespib在Vero细胞系中的对3型腺病毒(AdV3),以及5型腺病毒(AdV5)这两种型腺病毒的抑制作用。结果显示小分子化合物Zelavespib对AdV3和AdV5都具有显著的剂量依赖的抗腺病毒活性。因此,本发明的Zelavespib是一种新型针对腺病毒的抗病毒药物,具备安全性好、选择指数高且广谱抗腺病毒等优点,可以用于开发治疗腺病毒感染的药物,具有广阔的应用前景。The present invention detects the toxicity of Zelavespib to cells on the African green monkey kidney cell line Vero, and simultaneously measures the toxicity of Zelavespib to type 3 adenovirus (AdV3) and type 5 adenovirus (AdV5) in the Vero cell line. Inhibitory effect of adenovirus. The results showed that the small molecule compound Zelavespib had significant dose-dependent anti-adenovirus activity against both AdV3 and AdV5. Therefore, Zelavespib of the present invention is a novel antiviral drug against adenovirus, which has the advantages of good safety, high selection index and broad-spectrum anti-adenovirus, and can be used to develop drugs for the treatment of adenovirus infection and has wide applications. prospect.

1、实验材料:1. Experimental materials:

(1)实验所需细胞系、实验动物及病毒(1) Cell lines, experimental animals and viruses required for the experiment

Vero细胞购自美国菌种保藏中心(ATCC);Vero cells were purchased from the American Type Culture Collection (ATCC);

所用毒株:B型腺病毒AdV3、C型腺病毒AdV5。Strains used: type B adenovirus AdV3, type C adenovirus AdV5.

实验所需药物:Zelavespib购自Selleck Chemicals公司;细胞实验时,药物用DMSO溶解。Drugs required for the experiment: Zelavespib was purchased from Selleck Chemicals; for cell experiments, the drug was dissolved with DMSO.

实验所需试剂:Reagents required for the experiment:

DMEM培养基,胎牛血清(FBS)均购自于GIBCO公司;DMEM medium and fetal bovine serum (FBS) were purchased from GIBCO;

CellTiter-Glo细胞增殖检测试剂盒购自Promega公司。CellTiter-Glo Cell Proliferation Detection Kit was purchased from Promega.

(2)实验所需仪器(2) Instruments required for the experiment

EnSpire多功能酶标仪购自PerkinElmer公司;EnSpire multifunctional microplate reader was purchased from PerkinElmer;

CO2细胞培养箱购自Thermo公司;The CO2 cell culture box was purchased from Thermo Company;

Operetta CLS高内涵成像分析系统购自PerkinElmer公司。The Operetta CLS high-content imaging analysis system was purchased from PerkinElmer.

2、实验方法2. Experimental method

2.1Zelavespib的细胞毒性检测如下:2.1 The cytotoxicity test of Zelavespib is as follows:

(1)将非洲绿猴肾细胞系Vero以2×104每孔铺至96孔板中,培养24h。(1) The vero cell line Vero was plated in a 96-well plate at 2×10 4 per well, and cultured for 24 hours.

(2)加入用培养基稀释成不同梯度浓度的Zelavespib,于37℃含5%CO2的培养箱内继续培养48h。(2) Add Zelavespib diluted to different gradient concentrations with medium, and continue culturing for 48 hours in an incubator containing 5% CO 2 at 37°C.

(3)检测不同浓度药物处理后的细胞活力,以检测Zelavespib的细胞毒性。(3) Detect the cell viability after different concentrations of drug treatment to detect the cytotoxicity of Zelavespib.

(4)用Graphpad以细胞相对细胞活力(Cell viability)对药物浓度的对数作图,计算药物的半数细胞毒性浓度(CC50)。(4) Use Graphpad to plot the logarithm of the relative cell viability (Cell viability) of the drug concentration, and calculate the half cytotoxic concentration (CC 50 ) of the drug.

2.2在细胞模型中评价Zelavespib对腺病毒AdV3的抗病毒活性包括:2.2 Evaluation of the antiviral activity of Zelavespib against adenovirus AdV3 in a cell model includes:

(1)将非洲绿猴肾细胞系Vero以2×104每孔铺至96孔板中,培养24h。为了检测其抗病毒药效,用0.55MOI(感染复数)的腺病毒AdV3感染Vero细胞。(1) The vero cell line Vero was plated in a 96-well plate at 2×10 4 per well, and cultured for 24 hours. In order to detect its antiviral efficacy, Vero cells were infected with adenovirus AdV3 at MOI (multiplicity of infection) of 0.55.

(2)同时加入用培养基稀释成不同梯度浓度的Zelavespib,于37℃含5%CO2的培养箱内继续培养48h。(2) At the same time, add Zelavespib diluted to different gradient concentrations with medium, and continue culturing for 48 hours in an incubator containing 5% CO 2 at 37°C.

(3)用间接免疫荧光实验(Indirect immunofluorescence assay,IFA)检测药物处理组与未处理组细胞孔中感染病毒的阳性细胞数(Hexon阳性细胞数),以评估不同浓度Zelavespib处理后,腺病毒AdV3的复制水平。(3) Use indirect immunofluorescence assay (Indirect immunofluorescence assay, IFA) to detect the number of positive cells (Hexon positive cells) infected with the virus in the cell wells of the drug treatment group and the untreated group, to evaluate the adenovirus AdV3 after treatment with different concentrations of Zelavespib. level of replication.

(4)用Graphpad以抑制率(Inhibition rate)对药物浓度的对数作图,计算药物对腺病毒AdV3的半数抑制浓度(IC50)。计算Zelavespib在Vero细胞系上对腺病毒AdV3的选择指数。(4) Use Graphpad to plot the logarithm of the inhibition rate (Inhibition rate) against the drug concentration, and calculate the half inhibitory concentration (IC 50 ) of the drug against the adenovirus AdV3. The selection index of Zelavespib against adenovirus AdV3 on the Vero cell line was calculated.

2.3在细胞模型中评价Zelavespib对腺病毒AdV5的抗病毒活性如下:2.3 Evaluate the antiviral activity of Zelavespib against adenovirus AdV5 in a cell model as follows:

1)将非洲绿猴肾细胞系Vero以2×104每孔铺至96孔板中,培养24h。为了检测其抗病毒效果,用1.1MOI(感染复数)的腺病毒AdV5感染Vero细胞。1) The vero cell line Vero was plated in a 96-well plate at 2×10 4 per well, and cultured for 24 hours. In order to detect its antiviral effect, Vero cells were infected with adenovirus AdV5 at an MOI (multiplicity of infection) of 1.1.

2)同时加入用培养基稀释成不同梯度浓度的Zelavespib,于37℃含5%CO2的培养箱内继续培养48h。2) At the same time, add Zelavespib diluted to different gradient concentrations with medium, and continue culturing for 48 hours in an incubator containing 5% CO 2 at 37°C.

3)用间接免疫荧光实验(Indirect immunofluorescence assay,IFA)检测药物处理组与未处理组细胞孔中感染病毒的阳性细胞数(Hexon阳性细胞数),以评估不同浓度Zelavespib处理后,腺病毒AdV5的复制水平。3) Indirect immunofluorescence assay (Indirect immunofluorescence assay, IFA) was used to detect the number of positive cells infected with the virus (Hexon positive cells) in the cell wells of the drug-treated group and the untreated group, so as to evaluate the expression of adenovirus AdV5 after treatment with different concentrations of Zelavespib. copy level.

4)用Graphpad以抑制率(Inhibition rate)对药物浓度的对数作图,计算药物对腺病毒AdV5的半数抑制浓度(IC50)。计算Zelavespib在Vero细胞系上对腺病毒AdV5的选择指数。4) Use Graphpad to plot the logarithm of the inhibition rate (Inhibition rate) against the drug concentration, and calculate the half inhibitory concentration (IC 50 ) of the drug against the adenovirus AdV5. The selection index of Zelavespib against adenovirus AdV5 on the Vero cell line was calculated.

2.4Zelavespib在Vero细胞系中的细胞毒性的评价2.4 Evaluation of Cytotoxicity of Zelavespib in Vero Cell Line

(1)细胞培养(1) Cell culture

取冻存复苏后的细胞经过2次传代后,用含10%胎牛血清和双抗(青霉素100U/ml,链霉素100μg/ml)的DMEM培养基扩增培养,接种密度不低于1x104cell/ml,传代密度不高于5x104cell/ml。After 2 subcultures, the frozen and revived cells were cultured in DMEM medium containing 10% fetal bovine serum and double antibodies (penicillin 100 U/ml, streptomycin 100 μg/ml), and the seeding density was not lower than 1×10 4 cell/ml, the passage density is not higher than 5x10 4 cell/ml.

(2)药物处理细胞(2) Drug treatment of cells

Vero细胞按1×104细胞/孔(体积100μL)接种于96孔细胞培养板中,培养24h至细胞孔汇合度达到80%;用每孔200μL培养基液(DMEM培养基+2%血清+双抗)配制药物,并加入相应细胞孔中混匀。药物设定9个浓度梯度,每个梯度浓度设2个复孔,其终浓度为0.003μM、0.012μM、0.049μM、0.20μM、0.78μM、3.13μM、12.5μM、50μM和200μM,于37℃含5%CO2的培养箱内继续培养48h。Vero cells were inoculated in a 96-well cell culture plate at 1×10 4 cells/well (volume 100 μL), cultured for 24 h until the confluence of the cell wells reached 80%; Double antibody) to prepare drugs, and add to the corresponding cell wells and mix well. Set up 9 concentration gradients for the drug, and set up 2 replicate wells for each gradient concentration. Continue culturing for 48 h in an incubator containing 5% CO 2 .

(3)计算各检测孔中药物对细胞的毒性(3) Calculate the toxicity of the drug to the cells in each detection well

去除上清液,并向每个孔中加入100μL

Figure BDA0003635077750000091
试剂,将板在室温下孵育10分钟以稳定发光信号。用EnSpire酶标仪检测化学发光读数,计算细胞存活率。Remove the supernatant and add 100 μL to each well
Figure BDA0003635077750000091
Reagents, incubate the plate at room temperature for 10 minutes to stabilize the luminescent signal. Chemiluminescent readings were detected with an EnSpire microplate reader, and cell viability was calculated.

细胞存活率(%)=药物处理组/未处理对照组*100%Cell survival rate (%)=drug treatment group/untreated control group*100%

结果如图1所示,Zelavespib以最高浓度200μM处理Vero细胞48h后,细胞活力与对照组相比有微弱差别,说明Zelavespib在此浓度下对细胞有微弱毒性,其半数毒性浓度CC50为41.63μM。The results are shown in Figure 1. After Zelavespib treated Vero cells at the highest concentration of 200 μM for 48 hours, there was a slight difference in cell viability compared with the control group, indicating that Zelavespib had weak toxicity to cells at this concentration, and its half toxic concentration CC 50 was 41.63 μM .

2.5Zelavespib在Vero细胞系中的抗AdV3腺病毒活性的评价2.5 Evaluation of anti-AdV3 adenovirus activity of Zelavespib in Vero cell line

(1)细胞培养(1) Cell culture

取冻存复苏后的细胞经过2次传代后,用含10%胎牛血清和双抗(青霉素100U/ml,链霉素100μg/ml)的DMEM培养基扩增培养,接种密度不低于1x104cell/ml,传代密度不高于5x104cell/ml。After 2 subcultures, the frozen and revived cells were cultured in DMEM medium containing 10% fetal bovine serum and double antibodies (penicillin 100 U/ml, streptomycin 100 μg/ml), and the seeding density was not lower than 1×10 4 cell/ml, the passage density is not higher than 5x10 4 cell/ml.

(2)药物处理细胞(2) Drug treatment of cells

Vero细胞按1×104细胞/孔(体积100μL)接种于96孔细胞培养板中,培养24h至细胞孔汇合度达到80%;感染组加入0.55MOI(感染复数)的AdV3病毒,同时加入各梯度浓度的药物(以200μM为起始浓度,连续4倍梯度稀释9个梯度,每梯度两个复孔)至总体积200μL的培养液(DMEM培养基+2%血清+双抗),于细胞培养箱中37℃培养48h。Vero cells were inoculated in a 96-well cell culture plate at 1×10 4 cells/well (volume 100 μL), and cultured for 24 hours until the confluence of the cell wells reached 80%; the infection group was added with 0.55 MOI (multiplicity of infection) of AdV3 virus, and at the same time, each Gradient concentrations of drugs (starting at 200 μM, 9 gradients of 4-fold serial dilution, two replicate wells for each gradient) to a total volume of 200 μL of culture medium (DMEM medium + 2% serum + double antibody), in the cell Incubate for 48 hours at 37°C in an incubator.

(3)间接免疫荧光法检测特异性荧光标记的病毒(3) Detection of specific fluorescently labeled viruses by indirect immunofluorescence

细胞培养板用细胞用PBS溶液洗涤两次,并在室温下用4%多聚甲醛(4%PFA的PBS溶液)固定20分钟。固定的样品用PBST(0.05%tween 20的PBS溶液)洗涤3次,然后在封闭缓冲液(3%BSA、0.3%Triton X-100和10%FBS的PBS溶液)中室温孵育1小时。然后在针对腺病毒病毒六邻体蛋白的小鼠单克隆抗体(稀释1:200)的结合缓冲液(3%BSA,0.3%TritonX-100的PBS溶液)中4℃下过夜孵育。用PBST漂洗3次后,将样品在与山羊FITC偶联的抗小鼠二抗(稀释度1:1000)和DAPI(稀释度1:10000)的结合缓冲液中室温下在黑暗中孵育1小时。用PBST漂洗3次后,使用

Figure BDA0003635077750000101
CLSTM高内涵分析系统观察样品,然后拍摄并分析图像。Cell culture plates were washed twice with cells in PBS and fixed with 4% paraformaldehyde (4% PFA in PBS) for 20 minutes at room temperature. Fixed samples were washed 3 times with PBST (0.05% tween 20 in PBS) and then incubated in blocking buffer (3% BSA, 0.3% Triton X-100 and 10% FBS in PBS) for 1 hour at room temperature. It was then incubated overnight at 4° C. in binding buffer (3% BSA, 0.3% TritonX-100 in PBS) of a mouse monoclonal antibody against the adenoviral viral hexon protein (dilution 1:200). After 3 washes with PBST, samples were incubated in binding buffer with goat FITC-conjugated anti-mouse secondary antibody (dilution 1:1000) and DAPI (dilution 1:10000) for 1 hour at room temperature in the dark . After rinsing 3 times with PBST, use
Figure BDA0003635077750000101
The CLS TM high-content analysis system observes the sample, then captures and analyzes the images.

(4)计算各检测孔中药物对病毒的抑制率(4) Calculate the inhibitory rate of the drug to the virus in each detection hole

细胞通过DAPI染色标记,FITC染色强度代表病毒复制水平。在未感染的对照细胞中测量FITC背景荧光值。FITC强度超过对照细胞三倍的细胞被定义为腺病毒感染阳性细胞。计算腺病毒感染阳性细胞在总细胞中的比率。Cells are marked by DAPI staining, and FITC staining intensity represents the level of viral replication. FITC background fluorescence values were measured in uninfected control cells. Cells with FITC intensity three times higher than control cells were defined as positive cells for adenovirus infection. Calculate the ratio of adenovirus-infected positive cells in the total cells.

抑制率(%)=100%-(药物处理孔-空白对照)/(病毒对照孔-空白对照)*100%Inhibition rate (%)=100%-(drug treatment well-blank control)/(virus control well-blank control)*100%

结果如图2所示,Zelavespib明显抑制了腺病毒AdV3的复制,并且呈剂量依赖关系,其半数有效浓度IC50为0.35μM。The results are shown in Figure 2. Zelavespib significantly inhibited the replication of adenovirus AdV3 in a dose-dependent manner, and its half effective concentration IC 50 was 0.35 μM.

(5)药物选择指数计算(5) Calculation of drug selection index

药物选择指数(SI)用于判断药物效果的安全范围,选择指数大于3以上为有效,指数越大安全范围越大。其计算公式为:SI=CC50/IC50 The drug selection index (SI) is used to judge the safe range of the drug effect, and the selection index is greater than 3 to be effective, and the larger the index, the larger the safe range. Its calculation formula is: SI=CC 50 /IC 50

结合上述数据,Zelavespib在Vero上对腺病毒AdV3的选择指数为118.67,具备有效的抗腺病毒AdV3活性。Combined with the above data, the selection index of Zelavespib on Vero for adenovirus AdV3 is 118.67, and has effective anti-adenovirus AdV3 activity.

2.6Zelavespib在Vero细胞系中的抗AdV5腺病毒活性的评价2.6 Evaluation of anti-AdV5 adenovirus activity of Zelavespib in Vero cell line

(1)细胞培养(1) Cell culture

取冻存复苏后的细胞经过2次传代后,用含10%胎牛血清和双抗(青霉素100U/ml,链霉素100μg/ml)的DMEM培养基扩增培养,接种密度不低于1x104cell/ml,传代密度不高于5x104cell/ml。After 2 subcultures, the frozen and revived cells were cultured in DMEM medium containing 10% fetal bovine serum and double antibodies (penicillin 100 U/ml, streptomycin 100 μg/ml), and the seeding density was not lower than 1×10 4 cell/ml, the passage density is not higher than 5x10 4 cell/ml.

(2)药物处理细胞(2) Drug treatment of cells

Vero细胞按1×104细胞/孔(体积100μL)接种于96孔细胞培养板中,培养24h至细胞孔汇合度达到80%;感染组加入1.1MOI(感染复数)的AdV5病毒,同时加入各梯度浓度的药物(以200μM为起始浓度,连续4倍梯度稀释9个梯度,每梯度两个复孔)至总体积200μL的培养液(DMEM培养基+2%血清+双抗),于细胞培养箱中37℃培养48h。Vero cells were inoculated in a 96-well cell culture plate at 1×10 4 cells/well (volume 100 μL), and cultured for 24 hours until the confluence of the cell wells reached 80%; the infection group was added with 1.1 MOI (multiplicity of infection) of AdV5 virus, and at the same time, each Gradient concentrations of drugs (starting at 200 μM, 9 gradients of 4-fold serial dilution, two replicate wells for each gradient) to a total volume of 200 μL of culture medium (DMEM medium + 2% serum + double antibody), in the cell Incubate for 48 hours at 37°C in an incubator.

(3)间接免疫荧光法检测特异性荧光标记的病毒(3) Detection of specific fluorescently labeled viruses by indirect immunofluorescence

细胞培养板用细胞用PBS溶液洗涤两次,并在室温下用4%多聚甲醛(4%PFA的PBS溶液)固定20分钟。固定的样品用PBST(0.05%tween 20的PBS溶液)洗涤3次,然后在封闭缓冲液(3%BSA、0.3%Triton X-100和10%FBS的PBS溶液)中室温孵育1小时。然后在针对腺病毒病毒六邻体蛋白的小鼠单克隆抗体(稀释1:200)的结合缓冲液(3%BSA,0.3%TritonX-100的PBS溶液)中4℃下过夜孵育。用PBST漂洗3次后,将样品在与山羊FITC偶联的抗小鼠二抗(稀释度1:1000)和DAPI(稀释度1:10000)的结合缓冲液中室温下在黑暗中孵育1小时。用PBST漂洗3次后,使用

Figure BDA0003635077750000111
CLSTM高内涵分析系统观察样品,然后拍摄并分析图像。Cell culture plates were washed twice with cells in PBS and fixed with 4% paraformaldehyde (4% PFA in PBS) for 20 minutes at room temperature. Fixed samples were washed 3 times with PBST (0.05% tween 20 in PBS) and then incubated in blocking buffer (3% BSA, 0.3% Triton X-100 and 10% FBS in PBS) for 1 hour at room temperature. It was then incubated overnight at 4° C. in binding buffer (3% BSA, 0.3% TritonX-100 in PBS) of a mouse monoclonal antibody against the adenoviral viral hexon protein (dilution 1:200). After 3 washes with PBST, samples were incubated in binding buffer with goat FITC-conjugated anti-mouse secondary antibody (dilution 1:1000) and DAPI (dilution 1:10000) for 1 hour at room temperature in the dark . After rinsing 3 times with PBST, use
Figure BDA0003635077750000111
The CLS TM high-content analysis system observes the sample, then captures and analyzes the images.

(4)计算各检测孔中药物对病毒的抑制率(4) Calculate the inhibitory rate of the drug to the virus in each detection hole

细胞通过DAPI染色标记,FITC染色强度代表病毒复制水平。在未感染的对照细胞中测量FITC背景荧光值。FITC强度超过对照细胞三倍的细胞被定义为腺病毒感染阳性细胞。计算腺病毒感染阳性细胞在总细胞中的比率。Cells are marked by DAPI staining, and FITC staining intensity represents the level of viral replication. FITC background fluorescence values were measured in uninfected control cells. Cells with FITC intensity three times higher than control cells were defined as positive cells for adenovirus infection. Calculate the ratio of adenovirus-infected positive cells in the total cells.

抑制率(%)=100%-(药物处理孔-空白对照)/(病毒对照孔-空白对照)*100%Inhibition rate (%)=100%-(drug treatment well-blank control)/(virus control well-blank control)*100%

结果如图3所示,Zelavespib明显抑制了腺病毒AdV5的复制,并且呈剂量依赖关系,其半数有效浓度IC50为0.69μM。The results are shown in Figure 3, Zelavespib significantly inhibited the replication of adenovirus AdV5 in a dose-dependent manner, and its half effective concentration IC 50 was 0.69 μM.

(5)药物选择指数计算(5) Calculation of drug selection index

药物选择指数(SI)用于判断药物效果的安全范围,选择指数大于3以上为有效,指数越大安全范围越大。其计算公式为:SI=CC50/IC50 The drug selection index (SI) is used to judge the safe range of the drug effect, and the selection index is greater than 3 to be effective, and the larger the index, the larger the safe range. Its calculation formula is: SI=CC 50 /IC 50

结合上述数据,Zelavespib在Vero上对腺病毒AdV5的选择指数为60.11,具备有效的抗腺病毒AdV5活性。Combined with the above data, the selection index of Zelavespib on Vero for adenovirus AdV5 is 60.11, and it has effective anti-adenovirus AdV5 activity.

以上所述,仅为本发明的具体实施方式,但本发明的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本发明揭露的技术范围内,凡在本发明的精神和原则之内所作的任何修改、等同替换和改进等,都应涵盖在本发明的保护范围之内。The above is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Anyone familiar with the technical field within the technical scope disclosed in the present invention, whoever is within the spirit and principles of the present invention Any modifications, equivalent replacements and improvements made within shall fall within the protection scope of the present invention.

Claims (8)

1.一种Zelavespib在制备用于缓解和/或预防和/或治疗腺病毒感染的药物中的用途。1. A use of Zelavespib in the preparation of a medicament for alleviating and/or preventing and/or treating adenovirus infection. 2.如权利要求1所述的用途,其特征在于,所述腺病毒为腺病毒1型、3型、4型、5型、7型、11型、14型、40型、41型和55型中的一种或多种。2. The use according to claim 1, wherein the adenovirus is adenovirus type 1, type 3, type 4, type 5, type 7, type 11, type 14, type 40, type 41 and type 55 one or more of the types. 3.如权利要求1所述的用途,其特征在于,所述腺病毒包括B组腺病毒AdV3亚型或C组腺病毒AdV5亚型。3. The use according to claim 1, characterized in that the adenovirus comprises a group B adenovirus AdV3 subtype or a group C adenovirus AdV5 subtype. 4.如权利要求1所述的用途,其特征在于,所述用于缓解和/或预防和/或治疗腺病毒感染的药物包括Zelavespib和药学上可接受的载体。4. The use according to claim 1, characterized in that, the drug for alleviating and/or preventing and/or treating adenovirus infection comprises Zelavespib and a pharmaceutically acceptable carrier. 5.如权利要求1所述的用途,其特征在于,所述腺病毒感染为呼吸道疾病、肠道疾病和角膜疾病中的一种或多种。5. The use according to claim 1, wherein the adenovirus infection is one or more of respiratory diseases, intestinal diseases and corneal diseases. 6.如权利要求1所述的用途,其特征在于,所述用于缓解和/或预防和/或治疗腺病毒感染的药物的剂型为任意一种临床可接受的口服给药剂型或注射给药剂型。6. The use according to claim 1, characterized in that, the dosage form of the drug for alleviating and/or preventing and/or treating adenovirus infection is any clinically acceptable oral dosage form or injection drug form. 7.如权利要求1所述的用途,其特征在于,所述用于缓解和/或预防和/或治疗腺病毒感染的药物的剂型为任意一种临床可接受的外用给药剂型。7. The use according to claim 1, characterized in that, the dosage form of the drug for alleviating and/or preventing and/or treating adenovirus infection is any clinically acceptable dosage form for external use. 8.如权利要求1所述的用途,其特征在于,所述用于缓解和/或预防和/或治疗腺病毒感染的药物为片剂、胶囊、颗粒剂、口服液、注射剂。8. The use according to claim 1, characterized in that, the medicine for alleviating and/or preventing and/or treating adenovirus infection is tablet, capsule, granule, oral liquid, injection.
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