Synergistic gene expression during the acute phase response is characterized by transcription factor assisted loading

Ido Goldstein*, Ville Paakinaho, Songjoon Baek, Myong Hee Sung, Gordon L. Hager

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

48 Scopus citations


The cytokines interleukin 1β and 6 (IL-1β, IL-6) mediate the acute phase response (APR). In liver, they regulate the secretion of acute phase proteins. Using RNA-seq in primary hepatocytes, we show that these cytokines regulate transcription in a bifurcated manner, leading to both synergistic and antagonistic gene expression. By mapping changes in enhancer landscape and transcription factor occupancy (using ChIP-seq), we show that synergistic gene induction is achieved by assisted loading of STAT3 on chromatin by NF-κB. With IL-6 treatment alone, STAT3 does not efficiently bind 20% of its coordinated binding sites. In the presence of IL-1β, NF-κB is activated, binds a subset of enhancers and primes their activity, as evidenced by increasing H3K27ac. This facilitates STAT3 binding and synergistic gene expression. Our findings reveal an enhancer-specific crosstalk whereby NF-κB enables STAT3 binding at some enhancers while perturbing it at others. This model reconciles seemingly contradictory reports of NF-κB-STAT3 crosstalk.

Original languageAmerican English
Article number1849
JournalNature Communications
Issue number1
StatePublished - 1 Dec 2017
Externally publishedYes

Bibliographical note

Funding Information:
This work was supported by the Intramural Research Program of the National Institutes of Health (NIH), the National Cancer Institute (NCI), the Center for Cancer Research (CCR) and the National Institute on Aging (NIA). V.P. was supported, in part, by the Sigrid Jusélius Foundation.

Publisher Copyright:
© 2017 The Author(s).


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