PMID- 28485270 OWN - NLM STAT- MEDLINE DCOM- 20180430 LR - 20181113 IS - 1052-2166 (Print) IS - 1555-3884 (Electronic) IS - 1052-2166 (Linking) VI - 17 IP - 3 DP - 2017 Jul 7 TI - A Review of the Scaffold Protein Menin and its Role in Hepatobiliary Pathology. PG - 251-263 LID - 10.3727/105221617X695744 [doi] AB - Multiple endocrine neoplasia type 1 (MEN1) is a familial cancer syndrome with neuroendocrine tumorigenesis of the parathyroid glands, pituitary gland, and pancreatic islet cells. The MEN1 gene codes for the canonical tumor suppressor protein, menin. Its protein structure has recently been crystallized, and it has been investigated in a multitude of other tissues. In this review, we summarize recent advancements in understanding the structure of the menin protein and its function as a scaffold protein in histone modification and epigenetic gene regulation. Furthermore, we explore its role in hepatobiliary autoimmune diseases, cancers, and metabolic diseases. In particular, we discuss how menin expression and function are regulated by extracellular signaling factors and nuclear receptor activation in various hepatic cell types. How the many signaling pathways and tissue types affect menin's diverse functions is not fully understood. We show that small-molecule inhibitors affecting menin function can shed light on menin's broad role in pathophysiology and elucidate distinct menin-dependent processes. This review reveals menin's often dichotomous function through analysis of its role in multiple disease processes and could potentially lead to novel small-molecule therapies in the treatment of cholangiocarcinoma or biliary autoimmune diseases. FAU - Ehrlich, Laurent AU - Ehrlich L FAU - Hall, Chad AU - Hall C FAU - Meng, Fanyin AU - Meng F FAU - Lairmore, Terry AU - Lairmore T FAU - Alpini, Gianfranco AU - Alpini G FAU - Glaser, Shannon AU - Glaser S LA - eng GR - R01 DK062975/DK/NIDDK NIH HHS/United States GR - R01 DK058411/DK/NIDDK NIH HHS/United States GR - R01 DK110035/DK/NIDDK NIH HHS/United States GR - R01 DK054811/DK/NIDDK NIH HHS/United States GR - I01 BX002192/BX/BLRD VA/United States GR - R01 DK107310/DK/NIDDK NIH HHS/United States GR - I01 BX000574/BX/BLRD VA/United States GR - I01 BX001724/BX/BLRD VA/United States GR - R01 DK076898/DK/NIDDK NIH HHS/United States PT - Journal Article PT - Review DEP - 20170428 PL - United States TA - Gene Expr JT - Gene expression JID - 9200651 RN - 0 (Histones) RN - 0 (JunD protein, human) RN - 0 (MEN1 protein, human) RN - 0 (MIRN24 microRNA, human) RN - 0 (MicroRNAs) RN - 0 (Proto-Oncogene Proteins) RN - 0 (Proto-Oncogene Proteins c-jun) RN - 0 (Transcription Factors) RN - 0 (Transforming Growth Factor beta) RN - EC 2.1.1.43 (Histone-Lysine N-Methyltransferase) SB - IM MH - Animals MH - Autoimmune Diseases/metabolism MH - Cell Transformation, Neoplastic MH - Cholangiocarcinoma/metabolism MH - Epigenesis, Genetic MH - Fibrosis MH - Gene Expression Regulation, Neoplastic MH - Histone-Lysine N-Methyltransferase MH - Histones MH - Humans MH - Leukemia, Biphenotypic, Acute/metabolism MH - Liver/metabolism MH - Metabolic Diseases/metabolism MH - MicroRNAs/metabolism MH - Multiple Endocrine Neoplasia Type 1/genetics/*metabolism MH - Pancreas/metabolism MH - Proto-Oncogene Proteins/*metabolism MH - Proto-Oncogene Proteins c-jun/metabolism MH - Signal Transduction MH - Transcription Factors/metabolism MH - Transforming Growth Factor beta/metabolism PMC - PMC5765438 MID - NIHMS931971 EDAT- 2017/05/10 06:00 MHDA- 2018/05/01 06:00 PMCR- 2017/04/28 CRDT- 2017/05/10 06:00 PHST- 2017/05/10 06:00 [pubmed] PHST- 2018/05/01 06:00 [medline] PHST- 2017/05/10 06:00 [entrez] PHST- 2017/04/28 00:00 [pmc-release] AID - GE366 [pii] AID - 10.3727/105221617X695744 [doi] PST - ppublish SO - Gene Expr. 2017 Jul 7;17(3):251-263. doi: 10.3727/105221617X695744. Epub 2017 Apr 28.