結(jié)直腸癌關(guān)鍵基因突變對(duì)腫瘤進(jìn)展的影響
發(fā)布時(shí)間:2021-08-21 07:01
結(jié)直腸癌仍然是世界范圍內(nèi)高發(fā)的惡性腫瘤之一。盡管結(jié)直腸癌的早期篩查和治療技術(shù)不斷發(fā)展進(jìn)步,但晚期結(jié)直腸癌的總體生存率仍不盡如人意。而腫瘤轉(zhuǎn)移(包括淋巴轉(zhuǎn)移和遠(yuǎn)處轉(zhuǎn)移)仍舊是絕大多數(shù)結(jié)直腸癌患者死亡的主要原因。目前已發(fā)現(xiàn)結(jié)直腸癌的發(fā)生發(fā)展過(guò)程中存在許多關(guān)鍵基因突變,然而仍未鑒定出結(jié)直腸癌進(jìn)展尤其是轉(zhuǎn)移的驅(qū)動(dòng)突變。因此,本研究以此為切入點(diǎn)研究結(jié)直腸癌相關(guān)基因突變與其發(fā)生發(fā)展過(guò)程中的關(guān)系。1、結(jié)直腸癌關(guān)鍵基因變對(duì)腫瘤進(jìn)展的影響從結(jié)直腸正常結(jié)腸上皮,腺瘤,惡性轉(zhuǎn)化為癌,最后發(fā)展為腫瘤轉(zhuǎn)移是結(jié)直腸癌發(fā)生發(fā)展的經(jīng)典線性模型。在這個(gè)過(guò)程中一些關(guān)鍵基因會(huì)發(fā)生一系列突變。到目前為止,許多研究已經(jīng)報(bào)道這些關(guān)鍵基因突變與結(jié)直腸癌轉(zhuǎn)移的關(guān)系。但是由于單個(gè)研究的樣本量小、人群差異等因素,不同研究得出的結(jié)論存在矛盾。我們通過(guò)生物信息學(xué)分析確定了 APC、KRAS、BRAF、PIK3CA、SAMD4、p53等6個(gè)關(guān)鍵基因。然后在PubMed、Embase、Cochrane Library和TCGA數(shù)據(jù)庫(kù)中進(jìn)行系統(tǒng)檢索后(截至2017年11月30日),納入發(fā)表的120篇文章,利用Meta分析的方法明確了這些關(guān)鍵基因突...
【文章來(lái)源】:浙江大學(xué)浙江省 211工程院校 985工程院校 教育部直屬院校
【文章頁(yè)數(shù)】:72 頁(yè)
【學(xué)位級(jí)別】:碩士
【部分圖文】:
p53的突變促進(jìn)結(jié)直腸癌的遠(yuǎn)端轉(zhuǎn)移
4.2.1?AMER1基因在結(jié)直腸癌中的突變情況??對(duì)上述數(shù)據(jù)集中的69例結(jié)直腸癌患者的測(cè)序樣本進(jìn)行分析后,得到若干存在??高頻突變的基因,見(jiàn)圖4-1。AMER1在69例樣本中存在5例突變,其突變頻率約??為9%
?AMER1文變對(duì)結(jié)ft腸癌進(jìn)展的影響??同時(shí),我們對(duì)AMER]出現(xiàn)的7例突變進(jìn)行了位點(diǎn)分析,如圖4-2所示,其中??6例均為截?cái)嗤蛔,1例為錯(cuò)義突變。各突變位點(diǎn)如表4-3所示。????uousense?mutation??i?2????ousseusc?muiadoD????????????m??°?I?Hffn?ri? ̄"liniT11?■""r11?MlIII?II?II?■■I?Iin??0?200?400?600?800?1000?U3Sm??圖4-2?AMER1基因的突變位點(diǎn)及突變類(lèi)型??表4-3?AMER1基因的突變位點(diǎn)及突變類(lèi)型??Sample?ID?Protein?Change?Mutation?Type??201007824?R631?*?Nonsense?Mutation??EV-074?R626*?Nonsense?Mutation??EV-061?R601?*?Nonsense?Mutation??201125366?P544fs?Nonsense?Mutation??EV-050?R531?*?Nonsense?Mutation??200729812?T455P?Missense?Mutation??EV-051?R358*?Nonsense?Mutation??4.2.3?AMERl基因在結(jié)直腸癌細(xì)胞系中的表達(dá)情況??本實(shí)驗(yàn)使用Western?Blot檢測(cè)了結(jié)直腸癌細(xì)胞系中AMER1的表達(dá)水平。結(jié)果??如圖4-3所示
【參考文獻(xiàn)】:
期刊論文
[1]BRAF mutation in colorectal carcinomas with signet ring cell component[J]. Serap Yalcin,Onder Onguru. Cancer Biology & Medicine. 2017(03)
[2]Mutation analysis of 13 driver genes of colorectal cancer-related pathways in Taiwanese patients[J]. Yuli Christine Chang,Jan-Gowth Chang,Ta-Chih Liu,Chien-Yu Lin,Shu-Fen Yang,Cheng-Mao Ho,William Tzu-Liang Chen,Ya-Sian Chang. World Journal of Gastroenterology. 2016(07)
[3]KRAS and BRAF gene mutations and DNA mismatch repair status in Chinese colorectal carcinoma patients[J]. Ju-Xiang Ye,Yan Liu,Yun Qin,Hao-Hao Zhong,Wei-Ning Yi,Xue-Ying Shi. World Journal of Gastroenterology. 2015(05)
[4]Deficient DNA mismatch repair is associated with favorable prognosis in Thai patients with sporadic colorectal cancer[J]. Krittiya Korphaisarn,Ananya Pongpaibul,Chanin Limwongse,Ekkapong Roothumnong,Wipawi Klaisuban,Akarin Nimmannit,Artit Jinawath,Charuwan Akewanlop. World Journal of Gastroenterology. 2015(03)
本文編號(hào):3355117
【文章來(lái)源】:浙江大學(xué)浙江省 211工程院校 985工程院校 教育部直屬院校
【文章頁(yè)數(shù)】:72 頁(yè)
【學(xué)位級(jí)別】:碩士
【部分圖文】:
p53的突變促進(jìn)結(jié)直腸癌的遠(yuǎn)端轉(zhuǎn)移
4.2.1?AMER1基因在結(jié)直腸癌中的突變情況??對(duì)上述數(shù)據(jù)集中的69例結(jié)直腸癌患者的測(cè)序樣本進(jìn)行分析后,得到若干存在??高頻突變的基因,見(jiàn)圖4-1。AMER1在69例樣本中存在5例突變,其突變頻率約??為9%
?AMER1文變對(duì)結(jié)ft腸癌進(jìn)展的影響??同時(shí),我們對(duì)AMER]出現(xiàn)的7例突變進(jìn)行了位點(diǎn)分析,如圖4-2所示,其中??6例均為截?cái)嗤蛔,1例為錯(cuò)義突變。各突變位點(diǎn)如表4-3所示。????uousense?mutation??i?2????ousseusc?muiadoD????????????m??°?I?Hffn?ri? ̄"liniT11?■""r11?MlIII?II?II?■■I?Iin??0?200?400?600?800?1000?U3Sm??圖4-2?AMER1基因的突變位點(diǎn)及突變類(lèi)型??表4-3?AMER1基因的突變位點(diǎn)及突變類(lèi)型??Sample?ID?Protein?Change?Mutation?Type??201007824?R631?*?Nonsense?Mutation??EV-074?R626*?Nonsense?Mutation??EV-061?R601?*?Nonsense?Mutation??201125366?P544fs?Nonsense?Mutation??EV-050?R531?*?Nonsense?Mutation??200729812?T455P?Missense?Mutation??EV-051?R358*?Nonsense?Mutation??4.2.3?AMERl基因在結(jié)直腸癌細(xì)胞系中的表達(dá)情況??本實(shí)驗(yàn)使用Western?Blot檢測(cè)了結(jié)直腸癌細(xì)胞系中AMER1的表達(dá)水平。結(jié)果??如圖4-3所示
【參考文獻(xiàn)】:
期刊論文
[1]BRAF mutation in colorectal carcinomas with signet ring cell component[J]. Serap Yalcin,Onder Onguru. Cancer Biology & Medicine. 2017(03)
[2]Mutation analysis of 13 driver genes of colorectal cancer-related pathways in Taiwanese patients[J]. Yuli Christine Chang,Jan-Gowth Chang,Ta-Chih Liu,Chien-Yu Lin,Shu-Fen Yang,Cheng-Mao Ho,William Tzu-Liang Chen,Ya-Sian Chang. World Journal of Gastroenterology. 2016(07)
[3]KRAS and BRAF gene mutations and DNA mismatch repair status in Chinese colorectal carcinoma patients[J]. Ju-Xiang Ye,Yan Liu,Yun Qin,Hao-Hao Zhong,Wei-Ning Yi,Xue-Ying Shi. World Journal of Gastroenterology. 2015(05)
[4]Deficient DNA mismatch repair is associated with favorable prognosis in Thai patients with sporadic colorectal cancer[J]. Krittiya Korphaisarn,Ananya Pongpaibul,Chanin Limwongse,Ekkapong Roothumnong,Wipawi Klaisuban,Akarin Nimmannit,Artit Jinawath,Charuwan Akewanlop. World Journal of Gastroenterology. 2015(03)
本文編號(hào):3355117
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