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修飾茶多酚之奈米金應用於前列腺癌治療與成像

Laminin 67R target. Gelatin (EDC 、 NHS integrate Doxorubicin(DOX). Enzyme decomposition (MMP-2 、 MMP-9). Hao -Ying Hsieh ( 謝昊穎 ) * 、 Li-Chu Tsai( 蔡麗珠 ). Target PC-3 cells. FL-Quenched. FL-Activated. 有機高分子研究所 E-mail:zoe77101y@gmail.com. Laminin 67R . EGCG-Au 0. +. nHCl. +.

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修飾茶多酚之奈米金應用於前列腺癌治療與成像

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  1. Laminin 67R target Gelatin (EDC、NHS integrate Doxorubicin(DOX) Enzyme decomposition (MMP-2 、 MMP-9) Hao-Ying Hsieh(謝昊穎) *、Li-Chu Tsai(蔡麗珠) Target PC-3 cells FL-Quenched FL-Activated 有機高分子研究所 E-mail:zoe77101y@gmail.com Laminin 67R EGCG-Au0 + nHCl + nH2O + Ex:480nm Em:580nm Doxorubicin(DOX) M. Frederick Hawthorne,Laminin receptor specific therapeutic gold nanoparticles (198AuNP-EGCg) show efficacy in treating prostate cancer, PANS,June 25, 2012 Laminin R EGCG-  (2008) J.Biol.Chem. 283: 3002-3005 • Abstract • 本篇論文的研究方向是製備具有對前列腺癌(PC-3cells)細胞標的功能且對腫瘤組織內的金屬蛋白酶(Metalloproteinase (MMP-2、MMP-9))具有敏感性的奈米金載體 • (-)-Epigallocatechingallate (EGCG)-Au Nanoparticles(NPs)以應用於抗癌藥物的標靶傳送與螢光顯影偵測的應用。我們利用EGCG製備出不同吸收波長之奈米金粒子,並將Doxorubicin(DOX)藉由Gelatin結合於EGCG-Au奈米粒子表面,利用EGCG對PC-3細胞的標靶特性及奈米金的NSET效應,再藉由腫瘤組織中的MMP酵素專一性分解GLT,此奈米粒子具有應用於前列腺癌之標靶、專一性偵測與治療之潛力。 Introduction 根據2010年美國防癌協會(American Cancer Society)資料指出,癌症共有一百多種,其中前列腺癌在美國男性中是第二大致命症,每年有超過二十萬新病例。尤其是50嵗以上的男性,前列腺癌的患病機率亦隨之增高,所以美國防癌協會建議50嵗以上的男士,每年做肛門指探診(Digial rectal examination,DRE)以及前列腺抗體驗血檢查(Prostate specific antigen,PSA),通過檢查可早期發現前列腺癌並及時治療1。 修飾茶多酚之奈米金應用於前列腺癌治療與成像 Surgical resection Prostate cancer’streatment EGCG Androgen Results and Discussion 1.傅立葉紅外光譜結果(FT-IR) 2.界達表面電位結果(Zeta potential) Radiotherapy Source: Human health wikipedia Chemotherapy 4.穿透式電子顯微鏡-元素分析結果 3.螢光光譜猝火結果(FL-Quenched) • 6.前列腺癌細胞(PC-3)標靶顯影結果 5.細胞抑制率測試(MTTassay) Experiments Conclusion 本實驗成功的利用EGCG製備出不同吸收波長之奈米金粒子,並將DOX藉由GLT結合於EGCG-Au奈米粒子表面,利用EGCG對PC-3細胞的標靶特性及奈米金的NSET效應,再藉由腫瘤組織中的MMP酵素專一性分解GLT,此奈米粒子具有應用於前列腺癌之標靶、專一性偵測與治療之潛力。 • References • 1.AmericanCancerSociety(2010)CancerFactsandFigures2010(AmericanCancerSociety,Atlanta),pp23–35. • 2.H.S.Yoo,K.H.Lee,J.E.Oh,T.G.Park,JournalofControlled Release68(2000)419 • 3.S.Mitra,U.Gaur,P.C.Ghosh,A.N.Maitra,JournalofControlled Release74(2001)317. • 4.S.E.Gelperina,A.S.Khalansky,I.N.Skidan,Z.S.Smirnovac,A.I.Bobruskin,S.E.Severin,B.Turowski,F.E.Zanella,J.Kreuter,ToxicologyLetters126(2002)131

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