GFAPδ/GFAPα ratio directs astrocytoma gene expression towards a more malignant profile.
GFAPδ/GFAPα ratio directs astrocytoma gene expression towards a more malignant profile.
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DOI：
10.18632/oncotarget.21540
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发表时间：
2017-10-20
期刊：
影响因子：
--
通讯作者：
Hol EM
中科院分区：
文献类型：
--
作者：
Stassen OMJA;van Bodegraven EJ;Giuliani F;Moeton M;Kanski R;Sluijs JA;van Strien ME;Kamphuis W;Robe PAJ;Hol EM
星形细胞瘤是最常见的恶性脑肿瘤，迄今无法治愈。目前还不清楚星形细胞瘤是如何发展成更高恶性等级的。中间丝细胞骨架正在成为几种肿瘤恶性程度的重要调节因子。大多数星形细胞瘤表达中间丝蛋白胶质纤维酸性蛋白（GFAP）。已经鉴定了几种GFAP剪接变体，并且在人星形细胞瘤中表达的主要变体是GFAPα和GFAPδ同种型。我们发现，与II级和III级星形细胞瘤相比，IV级星形细胞瘤中GFAPα表达显著下调，导致GFAPδ/α比值升高。通过模拟星形细胞瘤细胞系中GFAPδ/α比率的增加，并将随后的转录组学变化与患者肿瘤的变化进行比较，我们确定了一组GFAPδ/α比率调节的高恶性和低恶性基因。这些基因参与细胞增殖和蛋白质磷酸化，其表达与患者生存相关。我们还发现，通过靶向GFAP表达，改变GFAPδ/α的比例，会影响高恶性基因的表达。我们的数据表明，调节GFAP表达和剪接是新的治疗靶点，需要考虑作为星形细胞瘤的治疗。
Astrocytomas are the most common malignant brain tumours and are to date incurable. It is unclear how astrocytomas progress into higher malignant grades. The intermediate filament cytoskeleton is emerging as an important regulator of malignancy in several tumours. The majority of the astrocytomas express the intermediate filament protein Glial Fibrillary Acidic Protein (GFAP). Several GFAP splice variants have been identified and the main variants expressed in human astrocytoma are the GFAPα and GFAPδ isoforms. Here we show a significant downregulation of GFAPα in grade IV astrocytoma compared to grade II and III, resulting in an increased GFAPδ/α ratio. Mimicking this increase in GFAPδ/α ratio in astrocytoma cell lines and comparing the subsequent transcriptomic changes with the changes in the patient tumours, we have identified a set of GFAPδ/α ratio-regulated high-malignant and low-malignant genes. These genes are involved in cell proliferation and protein phosphorylation, and their expression correlated with patient survival. We additionally show that changing the ratio of GFAPδ/α, by targeting GFAP expression, affected expression of high-malignant genes. Our data imply that regulating GFAP expression and splicing are novel therapeutic targets that need to be considered as a treatment for astrocytoma.
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胶质瘤干细胞增殖和肿瘤生长由一氧化氮合酶2促进。
影响因子：
64.5
作者：
Eyler CE;Wu Q;Yan K;MacSwords JM;Chandler-Militello D;Misuraca KL;Lathia JD;Forrester MT;Lee J;Stamler JS;Goldman SA;Bredel M;McLendon RE;Sloan AE;Hjelmeland AB;Rich JN
通讯作者：
Rich JN
影响因子：
64.5
作者：
Cheung KJ;Gabrielson E;Werb Z;Ewald AJ
通讯作者：
Ewald AJ
影响因子：
8.4
作者：
Ho, Vincent K. Y.;Reijneveld, Jaap C.;Visser, Otto
通讯作者：
Visser, Otto
影响因子：
3.7
作者：
Kamphuis W;Mamber C;Moeton M;Kooijman L;Sluijs JA;Jansen AH;Verveer M;de Groot LR;Smith VD;Rangarajan S;Rodríguez JJ;Orre M;Hol EM
通讯作者：
Hol EM
DOI：
10.1056/nejmoa1402121
发表时间：
2015-06-25
期刊：
The New England journal of medicine
影响因子：
--
作者：
Cancer Genome Atlas Research Network;Brat DJ;Verhaak RG;Aldape KD;Yung WK;Salama SR;Cooper LA;Rheinbay E;Miller CR;Vitucci M;Morozova O;Robertson AG;Noushmehr H;Laird PW;Cherniack AD;Akbani R;Huse JT;Ciriello G;Poisson LM;Barnholtz-Sloan JS;Berger MS;Brennan C;Colen RR;Colman H;Flanders AE;Giannini C;Grifford M;Iavarone A;Jain R;Joseph I;Kim J;Kasaian K;Mikkelsen T;Murray BA;O'Neill BP;Pachter L;Parsons DW;Sougnez C;Sulman EP;Vandenberg SR;Van Meir EG;von Deimling A;Zhang H;Crain D;Lau K;Mallery D;Morris S;Paulauskis J;Penny R;Shelton T;Sherman M;Yena P;Black A;Bowen J;Dicostanzo K;Gastier-Foster J;Leraas KM;Lichtenberg TM;Pierson CR;Ramirez NC;Taylor C;Weaver S;Wise L;Zmuda E;Davidsen T;Demchok JA;Eley G;Ferguson ML;Hutter CM;Mills Shaw KR;Ozenberger BA;Sheth M;Sofia HJ;Tarnuzzer R;Wang Z;Yang L;Zenklusen JC;Ayala B;Baboud J;Chudamani S;Jensen MA;Liu J;Pihl T;Raman R;Wan Y;Wu Y;Ally A;Auman JT;Balasundaram M;Balu S;Baylin SB;Beroukhim R;Bootwalla MS;Bowlby R;Bristow CA;Brooks D;Butterfield Y;Carlsen R;Carter S;Chin L;Chu A;Chuah E;Cibulskis K;Clarke A;Coetzee SG;Dhalla N;Fennell T;Fisher S;Gabriel S;Getz G;Gibbs R;Guin R;Hadjipanayis A;Hayes DN;Hinoue T;Hoadley K;Holt RA;Hoyle AP;Jefferys SR;Jones S;Jones CD;Kucherlapati R;Lai PH;Lander E;Lee S;Lichtenstein L;Ma Y;Maglinte DT;Mahadeshwar HS;Marra MA;Mayo M;Meng S;Meyerson ML;Mieczkowski PA;Moore RA;Mose LE;Mungall AJ;Pantazi A;Parfenov M;Park PJ;Parker JS;Perou CM;Protopopov A;Ren X;Roach J;Sabedot TS;Schein J;Schumacher SE;Seidman JG;Seth S;Shen H;Simons JV;Sipahimalani P;Soloway MG;Song X;Sun H;Tabak B;Tam A;Tan D;Tang J;Thiessen N;Triche T Jr;Van Den Berg DJ;Veluvolu U;Waring S;Weisenberger DJ;Wilkerson MD;Wong T;Wu J;Xi L;Xu AW;Yang L;Zack TI;Zhang J;Aksoy BA;Arachchi H;Benz C;Bernard B;Carlin D;Cho J;DiCara D;Frazer S;Fuller GN;Gao J;Gehlenborg N;Haussler D;Heiman DI;Iype L;Jacobsen A;Ju Z;Katzman S;Kim H;Knijnenburg T;Kreisberg RB;Lawrence MS;Lee W;Leinonen K;Lin P;Ling S;Liu W;Liu Y;Liu Y;Lu Y;Mills G;Ng S;Noble MS;Paull E;Rao A;Reynolds S;Saksena G;Sanborn Z;Sander C;Schultz N;Senbabaoglu Y;Shen R;Shmulevich I;Sinha R;Stuart J;Sumer SO;Sun Y;Tasman N;Taylor BS;Voet D;Weinhold N;Weinstein JN;Yang D;Yoshihara K;Zheng S;Zhang W;Zou L;Abel T;Sadeghi S;Cohen ML;Eschbacher J;Hattab EM;Raghunathan A;Schniederjan MJ;Aziz D;Barnett G;Barrett W;Bigner DD;Boice L;Brewer C;Calatozzolo C;Campos B;Carlotti CG Jr;Chan TA;Cuppini L;Curley E;Cuzzubbo S;Devine K;DiMeco F;Duell R;Elder JB;Fehrenbach A;Finocchiaro G;Friedman W;Fulop J;Gardner J;Hermes B;Herold-Mende C;Jungk C;Kendler A;Lehman NL;Lipp E;Liu O;Mandt R;McGraw M;Mclendon R;McPherson C;Neder L;Nguyen P;Noss A;Nunziata R;Ostrom QT;Palmer C;Perin A;Pollo B;Potapov A;Potapova O;Rathmell WK;Rotin D;Scarpace L;Schilero C;Senecal K;Shimmel K;Shurkhay V;Sifri S;Singh R;Sloan AE;Smolenski K;Staugaitis SM;Steele R;Thorne L;Tirapelli DP;Unterberg A;Vallurupalli M;Wang Y;Warnick R;Williams F;Wolinsky Y;Bell S;Rosenberg M;Stewart C;Huang F;Grimsby JL;Radenbaugh AJ;Zhang J
通讯作者：
Zhang J