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| Indexado |
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| DOI | 10.1038/S41467-021-24843-W | ||||
| Año | 2021 | ||||
| Tipo | artículo de investigación |
Citas Totales
Autores Afiliación Chile
Instituciones Chile
% Participación
Internacional
Autores
Afiliación Extranjera
Instituciones
Extranjeras
Alcoholic hepatitis (AH) is associated with liver neutrophil infiltration through activated cytokine pathways leading to elevated chemokine expression. Super-enhancers are expansive regulatory elements driving augmented gene expression. Here, we explore the mechanistic role of super-enhancers linking cytokine TNF alpha with chemokine amplification in AH. RNA-seq and histone modification ChIP-seq of human liver explants show upregulation of multiple CXCL chemokines in AH. Liver sinusoidal endothelial cells (LSEC) are identified as an important source of CXCL expression in human liver, regulated by TNF alpha /NF-kappa B signaling. A super-enhancer is identified for multiple CXCL genes by multiple approaches. dCas9-KRAB-mediated epigenome editing or pharmacologic inhibition of Bromodomain and Extraterminal (BET) proteins, transcriptional regulators vital to super-enhancer function, decreases chemokine expression in vitro and decreases neutrophil infiltration in murine models of AH. Our findings highlight the role of super-enhancer in propagating inflammatory signaling by inducing chemokine expression and the therapeutic potential of BET inhibition in AH treatment. Alcoholic hepatitis is characterized by intense liver inflammation driven by excessive cytokines and chemokines production and immune cell infiltration. Here the authors identify a super-enhancer that regulates the expression of multiple CXCL chemokines in alcoholic hepatitis and may be a potential therapeutic target.
| Ord. | Autor | Género | Institución - País |
|---|---|---|---|
| 1 | Liu, Mengfei | - |
Mayo Clin - Estados Unidos
Mayo Clinic - Estados Unidos |
| 2 | Cao, Sheng | - |
Mayo Clin - Estados Unidos
Mayo Clinic - Estados Unidos |
| 3 | He, Li | Mujer |
Huazhong Univ Sci & Technol - China
Tongji Medical College - China Tongji Medical College of Huazhong University of Science and Technology - China |
| 4 | Gao, Jinhang | - |
Sichuan Univ - China
West China School of Medicine/West China Hospital of Sichuan University - China |
| 5 | Arab, Juanpablo | Hombre |
Pontificia Universidad Católica de Chile - Chile
|
| 6 | Cui, Huarui | - |
Univ Minnesota - Estados Unidos
University of Minnesota Twin Cities - Estados Unidos College of Science and Engineering - Estados Unidos |
| 7 | Xuan, Weixia | - |
Henan Prov Peoples Hosp - China
Mayo Clin - Estados Unidos Henan Provincial People's Hospital - China Mayo Clinic - Estados Unidos |
| 8 | Gao, Yandong | - |
Mayo Clin - Estados Unidos
Mayo Clinic - Estados Unidos Mayo Clinic Graduate School of Biomedical Sciences - Estados Unidos |
| 9 | Sehrawat, Tejasav | - |
Mayo Clin - Estados Unidos
Mayo Clinic - Estados Unidos |
| 10 | Hamdan, Feda H. | - |
Mayo Clin - Estados Unidos
Mayo Clinic - Estados Unidos |
| 11 | Ventura-Cots, Meritxell | - |
Univ Pittsburgh - Estados Unidos
University of Pittsburgh - Estados Unidos |
| 12 | Argemi, Josepmaria | - |
Univ Pittsburgh - Estados Unidos
University of Pittsburgh - Estados Unidos |
| 13 | Pomerantz, William C. K. | Hombre |
Univ Minnesota - Estados Unidos
University of Minnesota Twin Cities - Estados Unidos College of Science and Engineering - Estados Unidos |
| 14 | Johnsen, Steven A. | Hombre |
Mayo Clin - Estados Unidos
Mayo Clinic - Estados Unidos |
| 15 | Lee, Jeong-Heon | - |
Mayo Clin - Estados Unidos
Mayo Clinic - Estados Unidos |
| 16 | Gao, Fei | - |
Mayo Clin - Estados Unidos
Mayo Clinic - Estados Unidos |
| 17 | Ordog, Tamas | Hombre |
Mayo Clin - Estados Unidos
Mayo Clinic - Estados Unidos Mayo Clinic Graduate School of Biomedical Sciences - Estados Unidos |
| 18 | Mathurin, Philippe | Hombre |
Univ Lille - Francia
Université de Lille - Francia |
| 19 | Revzin, Alexander | Hombre |
Mayo Clin - Estados Unidos
Mayo Clinic - Estados Unidos Mayo Clinic Graduate School of Biomedical Sciences - Estados Unidos |
| 20 | Avila, Matias A. | Hombre |
Univ Pittsburgh - Estados Unidos
University of Pittsburgh - Estados Unidos |
| 21 | Yan, Huihuang | - |
Mayo Clin - Estados Unidos
Mayo Clinic - Estados Unidos |
| 22 | Shah, Vijay H. | Hombre |
Mayo Clin - Estados Unidos
Mayo Clinic - Estados Unidos |
| Fuente |
|---|
| National Institutes of Health |
| National Institute on Alcohol Abuse and Alcoholism |
| National Institute of Diabetes and Digestive and Kidney Diseases |
| National Institutes of Health (NIH), USA |