NFIC regulates ribosomal biology and ER stress in pancreatic acinar cells and restrains PDAC initiation

Autor: Isidoro Cobo, Sumit Paliwal, Cristina Bodas, Irene Felipe, Júlia Melià-Alomà, Ariadna Torres, Jaime Martínez-Villarreal, Marina Malumbres, Fernando García, Irene Millán, Natalia del Pozo, Joo-Cheol Park, Ray J. MacDonald, Javier Muñoz, Raúl Méndez, Francisco X. Real
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Zdroj: Nature Communications, Vol 14, Iss 1, Pp 1-16 (2023)
Druh dokumentu: article
ISSN: 2041-1723
DOI: 10.1038/s41467-023-39291-x
Popis: Abstract Pancreatic acinar cells rely on PTF1 and other transcription factors to deploy their transcriptional program. We identify NFIC as a NR5A2 interactor and regulator of acinar differentiation. NFIC binding sites are enriched in NR5A2 ChIP-Sequencing peaks. Nfic knockout mice have a smaller, histologically normal, pancreas with reduced acinar gene expression. NFIC binds and regulates the promoters of acinar genes and those involved in RNA/protein metabolism, and Nfic knockout pancreata show defective ribosomal RNA maturation. NFIC dampens the endoplasmic reticulum stress program through binding to gene promoters and is required for resolution of Tunicamycin-mediated stress. NFIC is down-regulated during caerulein pancreatitis and is required for recovery after damage. Normal human pancreata with low levels of NFIC transcripts display reduced expression of genes down-regulated in Nfic knockout mice. NFIC expression is down-regulated in mouse and human pancreatic ductal adenocarcinoma. Consistently, Nfic knockout mice develop a higher number of mutant Kras-driven pre-neoplastic lesions.
Databáze: Directory of Open Access Journals