Misregulation of the IgH Locus in Thymocytes.
Misregulation of the IgH Locus in Thymocytes.
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DOI:
10.3389/fimmu.2018.02426
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发表时间:
2018
影响因子:
7.3
通讯作者:
Sen R
中科院分区:
文献类型:
--
作者:
Kumari G;Gerasimova T;Du H;De S;Wood WH 3rd;Becker KG;Sen R
Functional antigen receptor genes are assembled by somatic rearrangements that are largely lymphocyte lineage specific. The immunoglobulin heavy chain (IgH) gene locus is unique amongst the seven antigen receptor loci in undergoing partial gene rearrangements in the wrong lineage. Here we demonstrate that breakdown of lineage-specificity is associated with inappropriate activation of the Eμ enhancer during T cell development by a different constellation of transcription factors than those used in developing B cells. This is reflected in reduced enhancer-induced epigenetic changes, eRNAs, formation of the RAG1/2-rich recombination center, attenuated chromatin looping and markedly different utilization of DH gene segments in CD4+CD8+ (DP) thymocytes. Additionally, CTCF-dependent VH locus compaction is disrupted in DP cells despite comparable transcription factor binding in both lineages. These observations identify multiple mechanisms that contribute to lineage-specific antigen receptor gene assembly.
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影响因子:
64.8
作者:
Heintzman, Nathaniel D.;Hon, Gary C.;Hawkins, R. David;Kheradpour, Pouya;Stark, Alexander;Harp, Lindsey F.;Ye, Zhen;Lee, Leonard K.;Stuart, Rhona K.;Ching, Christina W.;Ching, Keith A.;Antosiewicz-Bourget, Jessica E.;Liu, Hui;Zhang, Xinmin;Green, Roland D.;Lobanenkov, Victor V.;Stewart, Ron;Thomson, James A.;Crawford, Gregory E.;Kellis, Manolis;Ren, Bing
通讯作者:
Ren, Bing
影响因子:
4.4
作者:
Degner, Stephanie C.;Wong, Timothy P.;Jankevicius, Gytis;Feeney, Ann J.
通讯作者:
Feeney, Ann J.
影响因子:
64.5
作者:
Guo C;Gerasimova T;Hao H;Ivanova I;Chakraborty T;Selimyan R;Oltz EM;Sen R
通讯作者:
Sen R
影响因子:
16
作者:
Chakraborty, Tirtha;Chowdhury, Dipanjan;Sen, Ranjan
通讯作者:
Sen, Ranjan
影响因子:
64.5
作者:
Hu J;Zhang Y;Zhao L;Frock RL;Du Z;Meyers RM;Meng FL;Schatz DG;Alt FW
通讯作者:
Alt FW