Interleukin 4 induces changes in the chromatin structure of the gamma 1 switch region in resting B cells before switch recombination.
Interleukin 4 induces changes in the chromatin structure of the gamma 1 switch region in resting B cells before switch recombination.
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在开关重组之前,白细胞介素 4 会诱导静息 B 细胞中 γ 1 开关区域的染色质结构发生变化。
DOI:
10.1084/jem.172.1.375
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发表时间:
1990
期刊:
影响因子:
--
通讯作者:
Vitetta,ES
中科院分区:
文献类型:
--
作者:
Berton,MT;Vitetta,ES
Interleukin 4 (IL-4) can induce the expression of IgG1 in sIgG- murine B cells stimulated with mitogens or through a cognate interaction with T helper (Th) cells. We have investigated the molecular basis for the IL-4-induced switch to IgG1 in lipopolysaccharide (LPS)-stimulated murine B cells and have previously shown that IL-4 induces transcription of the gamma 1 switch region before switch recombination. We now demonstrate that IL-4 induces a DNase I hypersensitive site at the 5' end of the gamma 1 switch region in resting B cells. LPS is not required, but it enhances induction. Hence, the interaction of IL-4 with its receptor results in increased accessibility of the gamma 1 switch region. The more open chromatin structure and increased transcriptional activity may be important in the selection of this region for switch recombination.
影响因子:
4.4
作者:
C. Snapper;W. Paul
通讯作者:
C. Snapper;W. Paul
影响因子:
4.4
作者:
J. Schmitz;Andreas Radbruch
通讯作者:
Andreas Radbruch