國家衛生研究院 NHRI:Item 3990099045/15155
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    题名: Aberrant activation of TCL1A promotes stem cell expansion in clonal haematopoiesis
    作者: Weinstock, JS;Gopakumar, J;Burugula, BB;Uddin, MM;Jahn, N;Belk, JA;Bouzid, H;Daniel, B;Miao, Z;Ly, N;Mack, TM;Luna, SE;Prothro, KP;Mitchell, SR;Laurie, CA;Broome, JG;Taylor, KD;Guo, XQ;Sinner, MF;von Falkenhausen, AS;Kaab, S;Shuldiner, AR;O'Connell, JR;Lewis, JP;Boerwinkle, E;Barnes, KC;Chami, N;Kenny, EE;Loos, RJF;Fornage, M;Hou, LF;Lloyd-Jones, DM;Redline, S;Cade, BE;Psaty, BM;Bis, JC;Brody, JA;Silverman, EK;Yun, JH;Qiao, DD;Palmer, ND;Freedman, BI;Bowden, DW;Cho, MH;DeMeo, DL;Vasan, RS;Yanek, LR;Becker, LC;Kardia, SLR;Peyser, PA;He, J;Rienstra, M;Van der Harst, P;Kaplan, R;Heckbert, SR;Smith, NL;Wiggins, KL;Arnett, DK;Irvin, MR;Tiwari, H;Cutler, MJ;Knight, S;Muhlestein, JB;Correa, A;Raffield, LM;Gao, Y;de Andrade, M;Rotter, JI;Rich, SS;Tracy, RP;Konkle, BA;Johnsen, JM;Wheeler, MM;Smith, JG;Melander, O;Nilsson, PM;Custer, BS;Duggirala, R;Curran, JE;Blangero, J;McGarvey, S;Williams, LK;Xiao, SJ;Yang, M;Gu, CC;Chen, YDI;Lee, WJ;Marcus, GM;Kane, JP;Pullinger, CR;Shoemaker, MB;Darbar, D;Roden, DM;Albert, C;Kooperberg, C;Zhou, Y;Manson, JE;Desai, P;Johnson, AD;Mathias, RA, .;et al.
    贡献者: Institute of Population Health Sciences
    摘要: Mutations in a diverse set of driver genes increase the fitness of haematopoietic stem cells (HSCs), leading to clonal haematopoiesis(1). These lesions are precursors for blood cancers(2-6), but the basis of their fitness advantage remains largely unknown, partly owing to a paucity of large cohorts in which the clonal expansion rate has been assessed by longitudinal sampling. Here, to circumvent this limitation, we developed a method to infer the expansion rate from data from a single time point. We applied this method to 5,071 people with clonal haematopoiesis. A genome-wide association study revealed that a common inherited polymorphism in the TCL1A promoter was associated with a slower expansion rate in clonal haematopoiesis overall, but the effect varied by driver gene. Those carrying this protective allele exhibited markedly reduced growth rates or prevalence of clones with driver mutations in TET2, ASXL1, SF3B1 and SRSF2, but this effect was not seen in clones with driver mutations in DNMT3A. TCL1A was not expressed in normal or DNMT3A-mutated HSCs, but the introduction of mutations in TET2 or ASXL1 led to the expression of TCL1A protein and the expansion of HSCs in vitro. The protective allele restricted TCL1A expression and expansion of mutant HSCs, as did experimental knockdown of TCL1A expression. Forced expression of TCL1A promoted the expansion of human HSCs in vitro and mouse HSCs in vivo. Our results indicate that the fitness advantage of several commonly mutated driver genes in clonal haematopoiesis may be mediated by TCL1A activation.
    日期: 2023-04-12
    關聯: Nature. 2023 Apr 12;616:755-763.
    Link to: http://dx.doi.org/10.1038/s41586-023-05806-1
    JIF/Ranking 2023: http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=NHRI&SrcApp=NHRI_IR&KeyISSN=0028-0836&DestApp=IC2JCR
    Cited Times(WOS): https://www.webofscience.com/wos/woscc/full-record/WOS:000992241000008
    Cited Times(Scopus): https://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85153988199
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