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  5. 以單細胞RNA定序數據統合分析探討腎臟移植後抗體介導排斥反應之免疫圖譜
 
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以單細胞RNA定序數據統合分析探討腎臟移植後抗體介導排斥反應之免疫圖譜

Other Title
Meta-Analysis of Single-Cell RNA Sequencing Data to Investigate the Immune Landscape of Antibody-Mediated Rejection After Kidney Transplantation
Type
thesis
Date Issued
2025-06-27
Author(s)
謝銘鮮
Advisor
張偉嶠
Subjects
系所名稱:藥學系臨床藥學碩士在職專班
Publisher
藥學系臨床藥學碩士在職專班
Description
學位別:碩士
口試委員:張偉嶠; 吳麥斯; 張哲邁
關鍵字:腎臟移植、抗體介導排斥反應、單細胞RNA定序技術、統合分析
Abstract
腎臟移植為末期腎臟病患者最有效的治療選項,但排斥反應,特別是抗體介導的排斥反應(antibody-mediated rejection, AMR),仍為移植失敗的主要原因。現行AMR診斷仰賴Banff腎臟移植病理評分分類系統(Banff Classification of Renal Allograft Pathology),通過病理切片和臨床指標綜合判斷。此外,過去的研究採用群細胞RNA定序(bulk RNA sequencing)技術來探討腎臟移植後排斥反應與基因表現變化的相關性。然而,這兩項方法皆無法提供單細胞層級的解析,限制了對免疫細胞亞群異質性的深入了解。單細胞RNA定序(single-cell RNA sequencing)技術可於單細胞層級上解析基因表達,進而更細緻地描繪免疫細胞族群與其功能變化。
本研究整合多個公開的人類單細胞RNA定序資料庫,針對腎臟移植後發生與未發生AMR的個體進行統合分析(meta-analysis),深入比較其免疫細胞組成與基因表現差異,並進一步探討特定單核球亞群於AMR中的潛在病理角色。
本研究首先針對資料進行資料前處理、品質控制與批次校正,減少資料間的技術變異,確保整合後分析的準確性與穩定性。比較分析結果顯示,AMR組中經典型與非經典型單核球皆顯著上升,提示單核球可能在排斥反應中扮演重要角色。進一步分析顯示,經典型單核球亞群Mono4展現活化的轉錄特徵,包含蛋白質合成與抗原呈遞相關路徑上調;非經典型單核球中,Mono2與Mono8分別與補體活化及粒線體功能異常相關,皆可能參與發炎與免疫調節過程。基於功能富集分析亦支持上述結果,差異基因顯著富集於免疫球蛋白、補體反應、白血球活化與粒線體代謝等生物路徑。
綜合而言,本研究透過單細胞層級的轉錄體資料,揭示特定單核球亞群於AMR中之潛在病理角色,並提供有潛力的免疫細胞生物標誌。研究結果有助於釐清AMR之免疫異質性,並為未來發展早期診斷與精準治療策略提供基礎,推動個人化免疫監測與臨床介入,最終改善腎臟移植患者的預後。
URI
https://203.71.86.71/handle/123456789/9082

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