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  5. CD109表現量可能成為肺癌免疫抑制劑的新興生物標記之探討
 
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CD109表現量可能成為肺癌免疫抑制劑的新興生物標記之探討

Other Title
Expression of Cluster Differentiation 109 could be a Potential Biomarker of Immune Checkpoint inhibitor in Lung Cancer
Type
thesis
Date Issued
2023-06-27
Author(s)
蔡瑩慧
Advisor
林政緯
Subjects
系所名稱:醫學科學研究所碩士班
Description
學位別:碩士
語文別:中文
口試委員:李崑豪 LEE,KUEN-HAUR;李育誠 LEE,YU-CHENG;林政緯 LIN, CHENG-WEI
授權範圍:網際網路,開放日期為2026-06-30
Abstract
肺癌因早期診斷困難及高轉移能力,常年位居國人癌症死因之首。晚期非小細胞肺癌(NSCLC)經化學療法往往收效甚微,第一線使用免疫檢查點抑制劑(ICIs)合併化學療法成為新的治療趨勢。然而部份患者對免疫治療的反應不佳,投入大筆醫藥費換來的卻是更短的壽命以及免疫毒性導致的災難。因此找到更準確的免疫療法療效指標,精準定義適合使用的患者尤為重要。在現行的NCCN治療指引中,PD-L1在腫瘤組織中所佔的比例(TPS)已被做為主要的療效指標,然而臨床觀察卻發現此項指標不夠準確。其他研究發現腫瘤本身的突變負荷量(TMB)、腫瘤基因的微衛星不穩定性(MSI)、基因錯誤配對修復系統的功能(MMR)、腫瘤微環境(TME)中浸潤的免疫細胞(TILs)皆與免疫治療療效具有相關性。我們過去的研究中發現在肺癌細胞上有高表現的CD109,能透過活化Hippo訊息傳遞路徑誘導肺腺癌的上皮細胞間質轉化(EMT)並促進腫瘤轉移。另外在子宮頸癌CD109調控腫瘤生長和侵襲以及PD-L1表現量的能力已被證實。本篇研究進而透過癌症基因組圖譜(TCGA)等多個資料庫分析以及肺癌組織的免疫組織化學染色(IHC),證實CD109在肺癌細胞中與上述多項免疫療效指標如PD-L1表現量、腫瘤突變負荷量、腫瘤內浸潤淋巴球等具有正相關,並有望成為肺癌免疫療法療效的新興生物標記。
URI
https://handle.ncl.edu.tw/11296/xh9dfz
https://203.71.86.71/handle/123456789/10248

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