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  5. 探討新型蛋白去乙醯酶抑制劑OHC-2對人類非小細胞肺癌細胞增生及單核球之作用
 
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探討新型蛋白去乙醯酶抑制劑OHC-2對人類非小細胞肺癌細胞增生及單核球之作用

Other Title
Investigation of Mechanism of a New HDAC Inhibitor OHC-2 on Human Non Small Cell Lung Cancer Cell Proliferation and Monocytic Activation
Type
thesis
Date Issued
2015-06-23
Author(s)
劉莉雅
Advisor
謝政穎
蕭哲志
Subjects
系所名稱:醫學科學研究所
Description
學位別:碩士
語文別:中文
指導教授:謝政穎
共同指導教授:蕭哲志
口試委員:顧記華;陳炳常;潘秀玲
中文關鍵字:肺癌;組織蛋白去乙醯酶抑制劑;抗增生
英文關鍵字:A549;HDACi;p21
Abstract
肺癌在全球癌症死亡率中位居首位且其發生率有逐年增加的趨勢,又以非小細胞肺癌占大多數。在腫瘤微環境中,癌細胞會藉由表現基質金屬蛋白酶及釋放細胞激素以促進浸潤及癌症的惡化。在本研究中選用人類肺腺癌細胞株A549及人類單核球細胞株THP-1探討histone deacetylase inhibitor (HDACi)-衍生物OHC-2對細胞增生之影響。結果顯示OHC-2會增加acetyl alpha-tubulin、acetyl SMC3及acetyl histone H3 protein的表現。此外,OHC-2可抑制A549細胞停滯在G2/M期且可負調控細胞週期蛋白Cyclin A2, Cdk2及正調控Cyclin B1之表現亦可增加p21及減少PARP蛋白的表現。再者本實驗也發現Akt相關路徑可讓survivin的表現減少。OHC-2對A549細胞有抗增生及DNA damage的現象。OHC-2亦會減少pATM及pATR蛋白表現及抑制HSP90活性。另一方面,OHC-2可抑制LPS誘導THP-1之MMP-9活性。另外,OHC-2對THP-1在LPS的刺激下可使IL-6分泌減少及IL-1beta分泌增加,然而單純給予OHC-2不會影響THP-1對IL-1beta的分泌。綜合上述結果顯示,OHC-2可抑制癌細胞增生及浸潤,此發現有助於未來癌症治療藥物的開發。
URI
https://203.71.86.71/handle/123456789/57211

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