TW201408304A - 一種合併抗癌藥物及荷爾蒙之抗腎細胞癌藥物及其製造方法 - Google Patents
一種合併抗癌藥物及荷爾蒙之抗腎細胞癌藥物及其製造方法 Download PDFInfo
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Abstract
腎細胞癌〈renal cell carcinoma;RCC〉約占所有癌症的百分之三,是最常見的腎臟惡性腫瘤,且出現在男性的頻率為女性的兩倍以上。性荷爾蒙〈尤其是雌性素〉存在時,具有抑制癌細胞及加成各種抗癌藥物作用的保護機制,然而性荷爾蒙治療,卻尚未成為目前腎細胞癌的治療方式。本技術首先將雌激素〈雌二醇;17β-estradiol〉,加上抗癌藥物〈太平洋紫杉醇;paclitaxel〉分別處理表現雌二醇接受器的RCC細胞株,接著利用活細胞計數法〈Cell Counting Kit-8〉、2',7'-二氯螢光素-雙醋酸〈2',7'-dichlorfluorescein-diacetate〉分別進行細胞增殖、細胞凋亡與活性氧〈reactive oxygen species〉等檢測。結果顯示,雌二醇明顯加乘抗癌藥物的效果,致使癌細胞發生細胞凋亡,促進癌細胞相對生長率顯著下降。除此之外,更發現細胞凋亡的因素來自於影響細胞存活的氧化壓力。本技術是首次在人類RCC的治療方式上合併性荷爾蒙,期望發展出一套具性別差異且有效安全的RCC治療方法,促進該常見的腎臟惡性腫瘤之臨床預後。
Description
本發明是首次發展出結合抗癌藥物〈paclitaxel〉與性荷爾蒙〈17β-estradiol〉之抗腎細胞癌藥物。
先前技術腎細胞癌臨床標靶藥物Sunitinib,會造成嚴重副作用,諸如心臟衰竭、高血壓等;且價格昂貴,病患使用越久,負擔越大;況且經過長時間使用後,還是會有抗藥性的問題而失效;換言之,使用該藥物付出的代價與可回收的效益不成正比。
先前技術腎細胞癌臨床標靶藥物Sunitinib會造成嚴重副作用,諸如心臟衰竭、高血壓等;且價格昂貴,病患使用越久,負擔越大;況且經過長時間使用後,還是會有抗藥性的問題而失效;換言之,使用該藥物付出的代價與可回收的效益不成正比。
1.利用雌激素〈如17β-estradiol〉可自由通透細胞膜。進入細胞後,其結合並激活雌激素受體〈estrogen receptor 1,ESR1〉,接著引發許多基因的表現之特性,以加乘抗癌藥物的效果,致使癌細胞發生細胞凋亡,促進癌細胞相對生長率顯著下降。
2.如「第一圖」所示,合併使用雌激素與太平洋紫杉醇者,腎細胞癌相對生長率下降至41.8%,相較於單純使用太平洋紫杉醇之對造組(細胞癌相對生長率49.9%),確實有加乘抗癌藥物的效果。
2.如「第二圖」所示,藍色標示部分乃陰性對照組(控制組),而綠色部分為添加雙氧水後之陽性對照組;而紅色部分則為本發明(化療藥物合併性荷爾蒙),該組曲線由陰性對照組向添加雙氧水之陽性對照組移動,證明本發明能夠促進細胞產生氧化壓力,從而促使癌細胞因氧化而凋亡。
1.本發明在相同濃度或劑量化療藥物之下,能達到更好的抗癌效果。
2.本發明在相同的抗癌效果之下,能夠減輕化療藥物之使用量,從而達到減少副作用、減輕藥物費用、降低抗藥性等之功效。
混和雌二醇與太平洋紫杉醇,以成為新抗腎細胞癌藥物。
第一圖:「本發明加乘抗癌藥物效果」示意圖。
第二圖:「本發明促進細胞產生氧化壓力」示意圖。
Claims (2)
- 一種抗腎細胞癌藥物,其特徵在於包含:(1)雌二醇(2)太平洋紫杉醇
- 一種抗腎細胞癌藥物之製造方法,其特徵在於包含:混和雌二醇與太平洋紫杉醇。
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