Tonicity‐responsive enhancer binding protein (TonEBP) regulates TNF‐α‐induced hypothalamic inflammation

Tonicity‐responsive enhancer binding protein (TonEBP) is a widely expressed transcription factor and is important in the regulation of inflammatory cytokines. Here, we have identified TonEBP expression in the hypothalamus, which is particularly high in proopiomelanocortin (POMC) neurons. TonEBP over...

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Bibliographic Details
Published in:FEBS letters 2019-10, Vol.593 (19), p.2762-2770
Main Authors: Kim, Han Rae, Kim, Dong Hee, Kim, Kwang Kon, Jeong, Bora, Kang, Dasol, Lee, Tae Hwan, Park, Jeong Woo, Kwon, Hyug Moo, Lee, Byung Ju
Format: Article
Language:English
Subjects:
hypothalamus
inflammation
proopiomelanocortin
sickness responses
tonicity‐responsive enhancer binding protein
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Summary:Tonicity‐responsive enhancer binding protein (TonEBP) is a widely expressed transcription factor and is important in the regulation of inflammatory cytokines. Here, we have identified TonEBP expression in the hypothalamus, which is particularly high in proopiomelanocortin (POMC) neurons. TonEBP overexpression stimulates POMC transcription, and TonEBP haploinsufficiency in TonEBP (+/−) mice results in a decrease in hypothalamic POMC expression. TonEBP (+/−) mice show reduced sickness responses, which include anorexia and hyperthermia, that are initially induced by tumor necrosis factor (TNF)‐α. TonEBP (+/−) mice also show lower levels of TNF‐α‐induced hypothalamic expression of POMC and pro‐inflammatory cytokines. These results suggest that TonEBP is an important molecular regulator in the development of inflammatory sickness responses through the control of POMC and pro‐inflammatory cytokine expression in the hypothalamus.
ISSN:0014-5793
1873-3468
DOI:10.1002/1873-3468.13533