Lineage-specific modulation of interleukin 4 signaling by interferon regulatory factor 4.

Lineage-specific modulation of interleukin 4 signaling by interferon regulatory factor 4.
复制标题

DOI:
10.1084/jem.190.12.1837
复制
发表时间:
1999-12-20
期刊:
The Journal of experimental medicine
影响因子:
--
通讯作者:
Pernis AB
Pernis AB
中科院分区:
其他
文献类型:
--
作者:
Gupta S;Jiang M;Anthony A;Pernis AB

文献摘要

被引文献

相似文献

白细胞介素 (IL)-4 是一种免疫调节细胞因子,对不同细胞类型发挥不同的生物活性。我们的研究表明干扰素调节因子 (IRF)-4 既是 IL-4 信号级联的靶标又是调节剂。 B 细胞与 CD40 和 IL-4 共刺激后,IRF-4 表达强烈上调。此外,我们发现 IRF-4 可以与信号转导子和转录激活子 (Stat)6 相互作用,并驱动 IL-4 诱导基因的表达。 IRF-4 的反式激活能力被阻遏因子 BCL-6 阻断。由于IRF-4的表达主要局限于淋巴细胞,这些数据提供了一种潜在的机制,通过该机制可以以谱系特异性的方式调节IL-4诱导基因。
Interleukin (IL)-4 is an immunoregulatory cytokine that exerts distinct biological activities on different cell types. Our studies indicate that interferon regulatory factor (IRF)-4 is both a target and a modulator of the IL-4 signaling cascade. IRF-4 expression is strongly upregulated upon costimulation of B cells with CD40 and IL-4. Furthermore, we find that IRF-4 can interact with signal transducer and activator of transcription (Stat)6 and drive the expression of IL-4–inducible genes. The transactivating ability of IRF-4 is blocked by the repressor factor BCL-6. Since expression of IRF-4 is mostly confined to lymphoid cells, these data provide a potential mechanism by which IL-4–inducible genes can be regulated in a lineage-specific manner.