基于高通量數(shù)據(jù)的間變腦膠質(zhì)瘤分子分型與生物標記物挖掘
[Abstract]:Part I: Molecular typing of anaplastic gliomas based on gene expression profiles: Previous genome-wide expression profiles have shown good stability and effectiveness in the study of molecular typing of full-grade gliomas (WHO II-IV) or primary glioblastomas (WHO IV), and can be used to reveal different cell origins of gliomas. Methods: To obtain an objective and feasible molecular typing scheme for anaplastic gliomas, we downloaded three sets of mutually independent metaplastic gliomas gene tables from a public database. By combining univariate Cox regression, linear combination of risk score and ROC curve, we constructed gene tags with the best prognostic discrimination effect. To further explain the molecular mechanism of prognostic differences among different subtypes, we continued to apply gene ontology analysis (GO), genome. Variation analysis (GSVA) and genome enrichment analysis (GSEA) were used to reveal the biological functions associated with the classification. Results: A total of 444 cases of anaplastic glioma gene expression profiles were collected from different platforms (34 cases in CGGA database, 80 cases in GSE16011 database, 67 cases in REMBRANDT database and 263 cases in TCGA database). Finally, we obtained a three-gene-based molecular typing scheme for anaplastic gliomas. The scheme divides anaplastic gliomas into high-risk group and low-risk group, and the prognosis of the two groups is significantly different. The high-risk group had more aggressive tumors and more complex genetic background. Conclusion: The three-gene typing scheme can well distinguish the clinical prognosis of patients. BACKGROUND OF BIOLOGICAL SIGNIFICANCE IN GLIOMA: The World Health Organization (WHO) classifies gliomas into different pathological grades according to their morphological characteristics. However, even in the same grade of tumors, their malignancy still varies considerably. This suggests that we should look for more objective and effective indicators to accurately judge the malignancy and biology of tumors. Phosphorylated histone H3 (p HH3) is a widely reported biomarker in various somatic tumors and has a characteristic expression in the stage of tumor cell division. Methods: To study the prognostic value and biological function of P HH3 in gliomas, we first studied the expression of P HH3 in 61 cases of anaplastic gliomas by immunohistochemistry. Then we studied P HH3 and its related genes in glia by using 325 Chinese glioma m RNA sequencing data, 169 US TCGA glioblastoma m RNA sequencing data, 305 Chinese glioma m RNA microarray data and 603 US TCGA glioblastoma m RNA microarray data. The prognostic value and biological significance of tumors were further confirmed by multivariate Cox regression and genome enrichment analysis (GSEA). Results: The expression of P HH3 protein, m RNA and P HH3-related genes could predict the prognosis of patients in multiple datasets. In addition, in the GSEA results, we found that P HH3 is not only associated with cell cycle, but also with epithelial-mesenchymal transformation of tumors. Conclusion: PHH3 and its related genes can be divided into two different subtypes of gliomas. The two subtypes of tumors have distinct clinical prognosis and biological characteristics. The biological significance of tumor cell purity in glioma: glioma tissue contains not only tumor cells, but also stromal cells, immune cells and other non-tumor cells. These non-tumor cells dilute the purity of tumor cells and play an important role in the microenvironment of tumor survival. Methods: We collected the purity of glioma cells from 5 clinical cohorts and 2 249 samples. According to the different research methods in the five cohorts, the data from RNA sequencing sources (CGGA, TCGA RNA sequencing data) were used as discovery group and the data from m RNA microarray sources (CGGA, TCGA, REMB). RANDT, GSE16011 m RNA chip data) were used as the validation group. In addition, CGGA-derived tumor samples were validated by HE and immunohistochemical methods. Results: We found that tumor cell purity was significantly correlated with major clinical and molecular pathological events of gliomas. After incorporating the tumor purity index, the effectiveness of many known prognostic factors has been significantly reduced, further validating the important biological significance of tumor purity. In addition, through joint analysis of sample-related genomic data, we found the purity phase of tumor cells. Associated with prognostic analysis, we found that the expression profiles of macrophages, microglia and neutrophils were correlated with the prognosis. Conclusion: The purity of tumor cells and the proportion of non-tumor cells in tumor microenvironment are significantly correlated with clinical and genomic characteristics, which is of great significance for accurate classification and clinical diagnosis of glioma.
【學位授予單位】:首都醫(yī)科大學
【學位級別】:博士
【學位授予年份】:2017
【分類號】:R739.41
【相似文獻】
相關期刊論文 前10條
1 孫偉建;;腦膠質(zhì)瘤的外科治療研究進展[J];醫(yī)學研究通訊;2000年01期
2 張慶林;腦膠質(zhì)瘤的治療 前言[J];山東醫(yī)藥;2001年07期
3 韓立虎,葉應湖,王國安;血管內(nèi)皮生長因子、微血管密度在腦膠質(zhì)瘤中的表達[J];咸寧醫(yī)學院學報;2001年04期
4 李煜;腦膠質(zhì)瘤誤診10例分析[J];中國社區(qū)醫(yī)師;2002年14期
5 王瑞民,田嘉禾,劉雁翎,陳英茂;目測分級法鑒別腦膠質(zhì)瘤復發(fā)或殘存的價值[J];中華核醫(yī)學雜志;2003年02期
6 趙希鵬;腦膠質(zhì)瘤病一例報告[J];青海醫(yī)藥雜志;2003年09期
7 陳燦中;5例腦膠質(zhì)瘤病的診斷和治療[J];云南醫(yī)藥;2004年04期
8 張華楸,舒凱,葉飛,郭東升,牛洪泉,雷霆,李齡;腦膠質(zhì)瘤病的診斷和治療[J];中華神經(jīng)醫(yī)學雜志;2005年06期
9 ;《腦膠質(zhì)瘤》出版[J];中華神經(jīng)外科雜志;2007年09期
10 遲鴻冰;邊海泉;;腦膠質(zhì)瘤超聲表現(xiàn)1例[J];中國超聲醫(yī)學雜志;2008年05期
相關會議論文 前10條
1 付學海;石梅;肖鋒;;分次伽馬刀治療腦膠質(zhì)瘤的療效分析[A];中華醫(yī)學會放射腫瘤治療學分會六屆二次暨中國抗癌協(xié)會腫瘤放療專業(yè)委員會二屆二次學術會議論文集[C];2009年
2 傅相平;李安民;;腦膠質(zhì)瘤瘤區(qū)化療的臨床研究[A];中華醫(yī)學會神經(jīng)外科學分會第九次學術會議論文匯編[C];2010年
3 殷增進;;腦膠質(zhì)瘤伽馬刀治療臨床分析[A];中國醫(yī)師協(xié)會神經(jīng)外科醫(yī)師分會第六屆全國代表大會論文匯編[C];2011年
4 汪志明;陳淑珍;王林;;中西醫(yī)結合治療腦膠質(zhì)瘤24例報道[A];第八屆全國中西醫(yī)結合腫瘤學術會議論文集[C];2000年
5 沈宏;鄭學勝;祝向東;傅偉明;胡未偉;黃欣;朱永堅;李立;龔江標;;腦膠質(zhì)瘤病理特征與預后[A];2006年浙江省神經(jīng)外科學術會議論文匯編[C];2006年
6 盧剛;吳旭;;腦膠質(zhì)瘤放、化療前后血腦屏障的組織學研究[A];2006年浙江省神經(jīng)外科學術會議論文匯編[C];2006年
7 祝鳴蘭;方衛(wèi)琴;;~(125)Ⅰ粒子治療腦膠質(zhì)瘤15例的護理[A];全國外科、神經(jīng)內(nèi)外科護理學術交流暨專題講座會議論文匯編[C];2006年
8 熊曉鵬;胡超蘇;;腦膠質(zhì)瘤的放射治療臨床研究進展[A];第四屆中國腫瘤學術大會暨第五屆海峽兩岸腫瘤學術會議論文集[C];2006年
9 蔣恒;楊偉志;高黎;雷明芳;石慧珍;徐國鎮(zhèn);;腦膠質(zhì)瘤分次照射生物效應的實驗研究[A];2007第六屆全國放射腫瘤學學術年會論文集[C];2007年
10 姚瑜;葉紅星;湯旭群;花瑋;史之峰;高曉寧;汪洋;汪寅;吳勁松;秦智勇;毛穎;周良輔;;腦膠質(zhì)瘤個體化綜合治療體系的建立和發(fā)展[A];2011中華醫(yī)學會神經(jīng)外科學學術會議論文匯編[C];2011年
相關重要報紙文章 前10條
1 鄒爭春 朱廣平 記者 陳磊;不用開刀就能“精確定位”腦膠質(zhì)瘤[N];科技日報;2013年
2 鄒爭春 朱廣平;腦膠質(zhì)瘤診斷有望從“有創(chuàng)”到“無創(chuàng)”[N];中國醫(yī)藥報;2013年
3 張獻懷;我國腦膠質(zhì)瘤研究獲新進展[N];大眾科技報;2007年
4 本報通訊員 張獻懷;對腦膠質(zhì)瘤進行局部強力“打擊”[N];大眾科技報;2007年
5 張獻懷;腦膠質(zhì)瘤別急著手術[N];健康時報;2007年
6 張獻懷;科學家提出對腦膠質(zhì)瘤應進行局部強力打擊[N];科技日報;2007年
7 金源;中關村生命科學園構建國家生物醫(yī)藥基地[N];中國醫(yī)藥報;2006年
8 張獻懷;對腦膠質(zhì)瘤應進行局部強力打擊[N];中國醫(yī)藥報;2007年
9 健康時報特約記者 朱立明;切腦膠質(zhì)瘤用超聲引導[N];健康時報;2007年
10 通訊員 張獻懷;腦膠質(zhì)瘤臨床研究與治療獲新進展[N];大眾科技報;2009年
相關博士學位論文 前10條
1 張傳寶;基于高通量數(shù)據(jù)的間變腦膠質(zhì)瘤分子分型與生物標記物挖掘[D];首都醫(yī)科大學;2017年
2 趙芬;功能影像預測復發(fā)腦膠質(zhì)瘤及非小細胞肺癌骨轉(zhuǎn)移預后的臨床研究[D];山東大學;2015年
3 王耀伍;FOXC2在腦膠質(zhì)瘤中表達并與其他腫瘤標記物相關性研究及其臨床病理意義[D];河北醫(yī)科大學;2015年
4 吳秀偉;Rab27a對人腦膠質(zhì)瘤細胞生物活性的影響及其在老年腦膠質(zhì)瘤中的臨床應用[D];安徽醫(yī)科大學;2014年
5 魏曉麗;穩(wěn)定性多肽介導跨屏障膜的腦膠質(zhì)瘤雙重靶向遞藥系統(tǒng)研究[D];復旦大學;2014年
6 韓海玲;腦膠質(zhì)瘤靶向納米藥物及其與放療聯(lián)用的實驗研究[D];吉林大學;2016年
7 楊沛;分子病理指導下的腦膠質(zhì)瘤分子分型及綜合治療研究[D];首都醫(yī)科大學;2016年
8 秦國強;EFEMP1 rs3791679單核苷酸多態(tài)性與腦膠質(zhì)瘤易感性的關聯(lián)性研究[D];南方醫(yī)科大學;2016年
9 張燦;靶向干擾Diaph1表達對腦膠質(zhì)瘤細胞增殖、凋亡、遷移的影響及分子機制的研究[D];上海大學;2016年
10 邵靈敏;腦膠質(zhì)瘤中調(diào)控LRIG1表達的微小RNA篩選及機制研究[D];武漢大學;2015年
相關碩士學位論文 前10條
1 孫文博;酪氨酸激酶2(DDR2)和血管內(nèi)皮細胞生長因子(VEGF)在腦膠質(zhì)瘤中的表達及相關性研究[D];河北醫(yī)科大學;2015年
2 姚冉;孕烷X受體在腦膠質(zhì)瘤中的臨床意義[D];新鄉(xiāng)醫(yī)學院;2015年
3 趙江華;腦膠質(zhì)瘤預后的影響因素分析[D];山西醫(yī)科大學;2015年
4 朱瀟鵬;不同級別腦膠質(zhì)瘤中差異microRNA的表達譜研究[D];第三軍醫(yī)大學;2015年
5 李政;膠質(zhì)瘤MGMT的表達及意義[D];四川醫(yī)科大學;2015年
6 張忠民;IL-6與NF-κB在人腦膠質(zhì)瘤中的表達及相關性研究[D];佳木斯大學;2015年
7 胡全銀;多肽介導的腦膠質(zhì)瘤靶向遞藥策略研究[D];復旦大學;2014年
8 張娜娜;miR-103/195/15b調(diào)控SALL4抑制腦膠質(zhì)瘤細胞增殖及侵襲作用的研究[D];哈爾濱工業(yè)大學;2015年
9 孫恒翠;~1H-MRS在亞急性腦梗死與低級別腦膠質(zhì)瘤鑒別診斷中的應用價值[D];山東大學;2015年
10 潘俊辰;異常表達長鏈非編碼RNA在腦膠質(zhì)瘤中的功能研究[D];南京醫(yī)科大學;2015年
,本文編號:2205180
本文鏈接:http://www.lk138.cn/yixuelunwen/zlx/2205180.html