Differential Expression of Extracellular Matrix in Women with Endometriosis by Gonadotropin-Releasing Hormone
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Abstract
[[abstract]]子宮內膜異位症(endometriosis)之成因不明,一般相信和細胞外間質(extracellular matrix, ECM)的生成與退化有關;細胞外間質金屬蛋白酶(matrix metalloproteinases, MMPs)及細胞外間質金屬蛋白酶抑制劑(tissue inhibitors of metalloproteinases, TIMPs)於調節細胞外質的生成與退化上扮演重要角色。臨床上無快速診斷子宮內膜異位症的方法,治療上常用親生殖腺素釋放激素(gonadotropin-releasing hormone analog, GnRHa)或經腹腔鏡以電燒去除不正常附著的內膜組織。本研究希望自血液中找到診斷子宮內膜異位症之分子標記並瞭解子宮內膜異位症與MMPs及TIMPs的關聯及GnRHa對此類酵素的影響。利用西方墨點法發現71.9%未經GnRHa治療血漿檢體中偵測到游離型細胞外間質金屬蛋白酶抑制劑第一型(tissue inhibitors of metalloproteinases-1, TIMP-1);只有27.6%經GnRHa治療血漿偵測到游離型TIMP-1。67%未經GnRHa治療腹腔液(peritoneal fluid, PF)亦偵測到游離型TIMP-1的存在。反轉錄聚合酶錬鎖反應顯示組織中細胞外間質金屬蛋白酶第九型(matrix metalloproteinases-9, MMP-9) 和TIMP-1 mRNA表現量無差異。子宮內膜異位症患者組織中細胞外間質表現經RT-PCR顯示未經GnRHa治療的異位內膜組織中膠原蛋白第一型(collagen type I)及小分子蛋白醣(proteoglycan),decorin mRNA表現量比經GnRHa治療之組織多。免疫組織染色法(immunocytochemistry)顯示decorine及Biglycan在基質及上皮組織、內皮組織和血管腔壁的分布表現。本研究証實子宮內膜異位症病程與MMPs及TIMPs的表現有關,此類酵素及ECM表現受到GnRHa影響。血漿中游離型TIMP-1可作為早期診斷子宮內膜異位症之指標及預後之追蹤標記。
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- last seen: 2026-06-10T17:14:06.276822+00:00
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