RUNX transcription factor-mediated association of Cd4 and Cd8 enables coordinate gene regulation.
RUNX transcription factor-mediated association of Cd4 and Cd8 enables coordinate gene regulation.
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DOI:
10.1016/j.immuni.2011.03.004
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发表时间:
2011-03-25
期刊:
影响因子:
32.4
通讯作者:
Skok JA
中科院分区:
文献类型:
--
作者:
Collins A;Hewitt SL;Chaumeil J;Sellars M;Micsinai M;Allinne J;Parisi F;Nora EP;Bolland DJ;Corcoran AE;Kluger Y;Bosselut R;Ellmeier W;Chong MM;Littman DR;Skok JA
T cell fate is associated with mutually exclusive expression of CD4 or CD8 in helper and cytotoxic T cells, respectively. How expression of one locus is temporally coordinated with repression of the other has been a long-standing enigma, though we know RUNX transcription factors activate the Cd8 locus, silence the Cd4 locus, and repress the Zbtb7b locus (encoding the transcription factor ThPOK), which is required for CD4 expression. Here we found that nuclear organization was altered by interplay among members of this transcription factor circuitry: RUNX binding mediated association of Cd4 and Cd8 whereas ThPOK binding kept the loci apart. Moreover, targeted deletions within Cd4 modulated CD8 expression and pericentromeric repositioning of Cd8. Communication between Cd4 and Cd8 thus appears to enable long-range epigenetic regulation to ensure that expression of one excludes the other in mature CD4 or CD8 single-positive (SP) cells. ► Association of Cd4 and Cd8 genes enables coordinate gene regulation ► Cd4 and Cd8 associate with one another in CD8-expressing cells ► RUNX transcription factor mediates association of Cd4 and Cd8 genes ► Targeted deletions within Cd4 modulate expression and nuclear location of Cd8
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影响因子:
30.5
作者:
Manel, Nicolas;Unutmaz, Derya;Littman, Dan R.
通讯作者:
Littman, Dan R.
DOI:
10.1073/pnas.95.14.8187
发表时间:
1998-07-07
影响因子:
11.1
作者:
Dave, VP;Allman, D;Kappes, DJ
通讯作者:
Kappes, DJ
影响因子:
64.8
作者:
He, X;He, X;Kappes, DJ
通讯作者:
Kappes, DJ
影响因子:
30.5
作者:
Hewitt, Susannah L.;Farmer, Deborah;Skok, Jane A.
通讯作者:
Skok, Jane A.
影响因子:
15.3
作者:
Delaire, S;Huang, YH;Robey, EA
通讯作者:
Robey, EA