PMID- 38352213 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20240215 IS - 1976-1457 (Print) IS - 2005-6168 (Electronic) IS - 1976-1457 (Linking) VI - 18 IP - 1 DP - 2024 Feb TI - Effects of an in vitro vitamin D treatment on the inflammatory responses in visceral adipose tissue from Ldlr(-/-) mice. PG - 19-32 LID - 10.4162/nrp.2024.18.1.19 [doi] AB - BACKGROUND/OBJECTIVES: Atherosclerosis is associated with increased inflammation in the visceral adipose tissue (VAT). Vitamin D has been reported to modulate the inflammatory responses of stromal vascular cells (SVCs) and adipocytes in adipose tissue, but the role of vitamin D in atherosclerosis biology is unclear. This study examined the effects of in vitro 1,25-dihydroxyvitamin D(3) (1,25[OH](2)D(3)) treatment on the inflammatory responses of SVCs and adipocytes from atherosclerotic mice. MATERIALS/METHODS: C57BL/6J (B6) mice were divided randomly into 2 groups and fed a 10% kcal fat control diet (control group, CON) or 41% kcal fat, 0.21% cholesterol (high fat + cholesterol, HFC) diet (obese group, OB), and B6.129S7-Ldlr(tm1Her)/J (Ldlr(-/-)) mice were fed a HFC diet (obese with atherosclerosis group, OBA) for 16 weeks. SVCs and adipocytes isolated from VAT were pre-incubated with 1,25(OH)(2)D(3) for 24 h and stimulated with lipopolysaccarides for the next 24 h. Proinflammatory cytokine production by adipocytes and SVCs, the immune cell population in SVCs, and the expression of the genes involved in the inflammatory signaling pathway in SVCs were determined. RESULTS: The numbers of total macrophages and SVCs per mouse were higher in OB and OBA groups than the CON group. The in vitro 1,25(OH)(2)D(3) treatment significantly reduced macrophages/SVCs (%) in the OBA group. Consistent with this change, the production of interleukin-6 and monocyte chemoattractant protein 1 (MCP-1) by SVCs from the OBA group was decreased by 1,25(OH)(2)D(3) treatment. The 1,25(OH)(2)D(3) treatment significantly reduced the toll-like receptor 4 and dual-specificity protein phosphatase 1 (also known as mitogen-activated protein kinase phosphatase 1) mRNA levels in SVCs and MCP-1 production by adipocytes from all 3 groups. CONCLUSIONS: These findings suggest that vitamin D can attribute to the inhibition of the inflammatory response in VAT from atherosclerotic mice by reducing proinflammatory cytokine production. CI - (c)2024 The Korean Nutrition Society and the Korean Society of Community Nutrition. FAU - Kwon, Deok Hoon AU - Kwon DH AUID- ORCID: 0000-0002-8647-6776 AD - Department of Food and Nutrition, College of Human Ecology, Seoul National University, Seoul 08826, Korea. FAU - Hwang, Jungwon AU - Hwang J AUID- ORCID: 0000-0001-5545-3291 AD - Department of Food and Nutrition, College of Human Ecology, Seoul National University, Seoul 08826, Korea. FAU - You, Hyeyoung AU - You H AUID- ORCID: 0000-0002-9833-6412 AD - Department of Food and Nutrition, College of Human Ecology, Seoul National University, Seoul 08826, Korea. FAU - Kim, Na Young AU - Kim NY AUID- ORCID: 0000-0001-8725-8677 AD - Department of Food and Nutrition, College of Human Ecology, Seoul National University, Seoul 08826, Korea. FAU - Lee, Ga Young AU - Lee GY AUID- ORCID: 0000-0002-3906-0671 AD - Department of Food and Nutrition, College of Human Ecology, Seoul National University, Seoul 08826, Korea. FAU - Han, Sung Nim AU - Han SN AUID- ORCID: 0000-0003-0647-2992 AD - Department of Food and Nutrition, College of Human Ecology, Seoul National University, Seoul 08826, Korea. AD - Research Institute of Human Ecology, College of Human Ecology, Seoul National University, Seoul 08826, Korea. LA - eng PT - Journal Article DEP - 20231211 PL - Korea (South) TA - Nutr Res Pract JT - Nutrition research and practice JID - 101311052 PMC - PMC10861343 OTO - NOTNLM OT - Atherosclerosis OT - adipose tissue OT - inflammation OT - vitamin D COIS- Conflict of Interest: The authors declare no potential conflicts of interests. EDAT- 2024/02/14 06:43 MHDA- 2024/02/14 06:44 PMCR- 2024/02/01 CRDT- 2024/02/14 03:51 PHST- 2023/07/31 00:00 [received] PHST- 2023/10/26 00:00 [revised] PHST- 2023/11/16 00:00 [accepted] PHST- 2024/02/14 06:44 [medline] PHST- 2024/02/14 06:43 [pubmed] PHST- 2024/02/14 03:51 [entrez] PHST- 2024/02/01 00:00 [pmc-release] AID - 10.4162/nrp.2024.18.1.19 [doi] PST - ppublish SO - Nutr Res Pract. 2024 Feb;18(1):19-32. doi: 10.4162/nrp.2024.18.1.19. Epub 2023 Dec 11.