Diabetes & Metabolism Journal

Original Articles

Pathophysiology
Essential Role of Protein Arginine Methyltransferase 1 in Pancreas Development by Regulating Protein Stability of Neurogenin 3: Kanghoon Lee, Hyunki Kim, Joonyub Lee, Chang-Myung Oh, Heein Song, Hyeongseok Kim, Seung-Hoi Koo, Junguee Lee, Ajin Lim, Hail Kim; Diabetes Metab J. 2019;43(5):649-658. Published online April 8, 2019; DOI: https://doi.org/10.4093/dmj.2018.0232

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Background

Protein arginine methyltransferase 1 (PRMT1) is a major enzyme responsible for the formation of methylarginine in mammalian cells. Recent studies have revealed that PRMT1 plays important roles in the development of various tissues. However, its role in pancreas development has not yet been elucidated.

Methods

Pancreatic progenitor cell-specific Prmt1 knock-out (Prmt1 PKO) mice were generated and characterized for their metabolic and histological phenotypes and their levels of Neurog3 gene expression and neurogenin 3 (NGN3) protein expression. Protein degradation assays were performed in mPAC cells.

Results

Prmt1 PKO mice showed growth retardation and a severely diabetic phenotype. The pancreatic size and β-cell mass were significantly reduced in Prmt1 PKO mice. Proliferation of progenitor cells during the secondary transition was decreased and endocrine cell differentiation was impaired. These defects in pancreas development could be attributed to the sustained expression of NGN3 in progenitor cells. Protein degradation assays in mPAC cells revealed that PRMT1 was required for the rapid degradation of NGN3.

Conclusion

PRMT1 critically contributes to pancreas development by destabilizing the NGN3 protein.

Citations

Citations to this article as recorded by

Arginine 65 methylation of Neurogenin 3 by PRMT1 is required for pancreatic endocrine development of hESCs
Gahyang Cho, Kwangbeom Hyun, Jieun Choi, Eunji Shin, Bumsoo Kim, Hail Kim, Jaehoon Kim, Yong-Mahn Han
Experimental & Molecular Medicine.2023; 55(7): 1506. CrossRef
Protein arginine methyltransferase 1 in the generation of immune megakaryocytes: A perspective review
Xinyang Zhao, Zechen Chong, Yabing Chen, X. Long Zheng, Qian-Fei Wang, Yueying Li
Journal of Biological Chemistry.2022; 298(11): 102517. CrossRef
Arginine 65 Methylation of Neurogenin 3 by PRMT1 Is Required for Pancreatic Endocrine Development of hESCs
Gahyang Cho, Kwangbeom Hyun, Jieun Choi, Eun Ji Shin, Bumsoo Kim, Hail Kim, Jaehoon Kim, Yong-Mahn Han
SSRN Electronic Journal .2022;[Epub] CrossRef
Protein Arginine Methyltransferase 1 Is Essential for the Meiosis of Male Germ Cells
Sahar Waseem, Sudeep Kumar, Kanghoon Lee, Byoung-Ha Yoon, Mirang Kim, Hail Kim, Keesook Lee
International Journal of Molecular Sciences.2021; 22(15): 7951. CrossRef
Proteome-Wide Alterations of Asymmetric Arginine Dimethylation Associated With Pancreatic Ductal Adenocarcinoma Pathogenesis
Meijin Wei, Chaochao Tan, Zhouqin Tang, Yingying Lian, Ying Huang, Yi Chen, Congwei Chen, Wen Zhou, Tao Cai, Jiliang Hu
Frontiers in Cell and Developmental Biology.2020;[Epub] CrossRef

Obesity and Metabolic Syndrome
Inhibition of Serotonin Synthesis Induces Negative Hepatic Lipid Balance: Jun Namkung, Ko Eun Shong, Hyeongseok Kim, Chang-Myung Oh, Sangkyu Park, Hail Kim; Diabetes Metab J. 2018;42(3):233-243. Published online April 25, 2018; DOI: https://doi.org/10.4093/dmj.2017.0084

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84 Download
24 Web of Science
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Abstract PDF PubReader

Background

Hepatic steatosis is caused by metabolic stress associated with a positive lipid balance, such as insulin resistance and obesity. Previously we have shown the anti-obesity effects of inhibiting serotonin synthesis, which eventually improved insulin sensitivity and hepatic steatosis. However, it is not clear whether serotonin has direct effect on hepatic lipid accumulation. Here, we showed the possibility of direct action of serotonin on hepatic steatosis.

Methods

Mice were treated with para-chlorophenylalanine (PCPA) or LP-533401 to inhibit serotonin synthesis and fed with high fat diet (HFD) or high carbohydrate diet (HCD) to induce hepatic steatosis. Hepatic triglyceride content and gene expression profiles were analyzed.

Results

Pharmacological and genetic inhibition of serotonin synthesis reduced HFD-induced hepatic lipid accumulation. Furthermore, short-term PCPA treatment prevented HCD-induced hepatic steatosis without affecting glucose tolerance and browning of subcutaneous adipose tissue. Gene expression analysis revealed that the expressions of genes involved in de novo lipogenesis and triacylglycerol synthesis were downregulated by short-term PCPA treatment as well as long-term PCPA treatment.

Conclusion

Short-term inhibition of serotonin synthesis prevented hepatic lipid accumulation without affecting systemic insulin sensitivity and energy expenditure, suggesting the direct steatogenic effect of serotonin in liver.

Citations

Citations to this article as recorded by

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钰婷吴
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Diabetes.2021; 70(1): 119. CrossRef
Peripheral Selective Oxadiazolylphenyl Alanine Derivatives as Tryptophan Hydroxylase 1 Inhibitors for Obesity and Fatty Liver Disease
Eun Jung Bae, Won Gun Choi, Haushabhau S. Pagire, Suvarna H. Pagire, Saravanan Parameswaran, Jun-Ho Choi, Jihyeon Yoon, Won-il Choi, Ji Hun Lee, Jin Sook Song, Myung Ae Bae, Mijin Kim, Jae-Han Jeon, In-Kyu Lee, Hail Kim, Jin Hee Ahn
Journal of Medicinal Chemistry.2021; 64(2): 1037. CrossRef
Modulation of serotonin in the gut-liver neural axis ameliorates the fatty and fibrotic changes in non-alcoholic fatty liver
Masayoshi Ko, Kenya Kamimura, Takashi Owaki, Takuro Nagoya, Norihiro Sakai, Itsuo Nagayama, Yusuke Niwa, Osamu Shibata, Chiyumi Oda, Shinichi Morita, Atsushi Kimura, Ryosuke Inoue, Toru Setsu, Akira Sakamaki, Takeshi Yokoo, Shuji Terai
Disease Models & Mechanisms.2021;[Epub] CrossRef
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International Journal of Molecular Sciences.2021; 22(10): 5400. CrossRef
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World Journal of Gastroenterology.2021; 27(30): 4999. CrossRef
Inhibiting serotonin signaling through HTR2B in visceral adipose tissue improves obesity-related insulin resistance
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Journal of Clinical Investigation.2021;[Epub] CrossRef
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Lin Zhang, Jia-Ying Xu, Ya-Fang Du, Zhang-Min Wang, Jian-Xiang Li, N. Ou-Yang, Yan Wang, Xue-Bin Yin, Li-Qiang Qin
International Food Research Journal.2021; 28(5): 996. CrossRef
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Design, Synthesis, and Biological Evaluation of New Peripheral 5HT2A Antagonists for Nonalcoholic Fatty Liver Disease
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