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  5. 奈米探針輔助親和性質譜法偵測血清攝護腺特定抗原- 可為攝護腺癌研究的平臺
 
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奈米探針輔助親和性質譜法偵測血清攝護腺特定抗原- 可為攝護腺癌研究的平臺

Other Title
Detect Serum Prostate Specific Antigen by Nanoprobe-Based Affinity Mass Spectrometry - A Novel Prostate Cancer Research Platform
Type
thesis
Date Issued
2011-07-01
Author(s)
溫玉清
Advisor
陳振漢
Subjects
系所名稱:臨床醫學研究所
Description
學位別:碩士
語文別:英文
指導教授:陳振漢
共同指導教授:李良明
口試委員:稅皓靄;華國媛;鄭朝文
中文關鍵字:攝護腺癌;攝護腺特定抗原;奈米探針輔助親和性質譜法;基質輔助雷射脫附/游離飛行時間質譜儀;攝護腺癌細胞株
Abstract
攝護腺(前列腺)癌是美國最常見的男性惡性腫瘤。據衛生署統計,二○○九年台灣國人男性攝護腺癌的發生率排名於男性癌症第五位。近五年國內每年有超過千位攝護腺癌新病例被診斷出來,死亡率的排名於男性癌症死亡十大疾病為第七位。近年來由於醫學進步,經由早期的診斷及各種有效的治療方法,可提升攝護腺癌的存活率。血清攝護腺特定抗原(serum prostate specific antigen,簡稱PSA)檢查是目前公認最佳早期偵測攝護腺癌的診斷工具之一。當血清中的攝護腺特定抗原濃度超過4毫微克/毫升時,即可視為攝護腺癌的高度危險群。但PSA值上升的原因不只有攝護腺癌,其他最常見的原因有攝護腺肥大或是攝護腺炎。因而需經由攝護腺切片來確定,但並非全無風險。所以,如何減少不必要的攝護腺切片為一重要課題。
在本篇論文中,我們應用在之前所開發的奈米探針輔助親和性質譜法(nanoprobe-based affinity mass spectrometry, NBAMS)做為攝護腺特定抗原的免疫測定方法。利用表面結合有攝護腺特定抗原抗體的磁性奈米探針,藉由抗體對抗原的高專一性作用力,再結合具有高靈敏度的基質輔助雷射脫附/游離飛行時間質譜儀針對含量極低且不易游離的高度醣化攝護腺特定抗原樣品進行偵測。以此分析方法可以在人體血清中,偵測低至五毫微克/毫升的標準儲精囊攝護腺特定抗原。並同時在實驗室培養對男性睪固酮依賴性及非依賴性的兩株攝護腺癌細胞,運用此方法亦可精確取得其分泌之攝護腺特定抗原,且在基質輔助雷射脫附/游離飛行時間質譜儀中,發現其在某些特定訊號中和標準品攝護腺特定抗原有所不同。此平台的建立可在早期診斷攝護腺癌中有所進展,甚至未來可得知攝護腺癌對男性荷爾蒙阻斷治療失效的潛在性以改善攝護腺癌個人化治療。然而,後續還需更多的血液標本來做驗證。
URI
https://203.71.86.71/handle/123456789/13506

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