PMID- 37033260 OWN - NLM STAT- MEDLINE DCOM- 20230411 LR - 20230414 IS - 1664-2392 (Print) IS - 1664-2392 (Electronic) IS - 1664-2392 (Linking) VI - 14 DP - 2023 TI - Food deprivation differentially modulates gene expression of LPXRFa and kisspeptin systems in the brain-pituitary axis of half-smooth tongue sole (Cynoglossus semilaevis). PG - 1099832 LID - 10.3389/fendo.2023.1099832 [doi] LID - 1099832 AB - LPXRFa, also known as gonadotropin-inhibitory hormone (GnIH), and kisspeptin (Kiss) are two major hypothalamic peptides that modulate the reproductive axis of vertebrates, including teleosts. However, little information is available regarding the actions of nutritional status on the regulation of these two neuroendocrine systems in fish. Herein, we assessed the effects of starvation and refeeding on the expression of lpxrfa, kiss2 and their receptors (lpxrfa-r and kiss2r respectively) at the brain-pituitary level of half-smooth tongue sole (Cynoglossus semilaevis). Food deprivation for 4 weeks induced a rise in brain lpxrfa as well as brain and pituitary lpxrfa-r mRNA levels, and refeeding restored brain lpxrfa and lpxrfa-r expression back to normal. However, pituitary lpxrfa-r mRNA levels still remained high after 1 week of refeeding. Neither lpxrfa nor kiss2 transcripts in the pituitary were altered by fasting, but their mRNA levels increased significantly after 1 week of refeeding, and declined back to the control levels after 2 weeks of refeeding. None of brain kiss2 and kiss2r along with pituitary kiss2r transcripts were modified by the nutritional status. In summary, our results revealed an interaction between energy status and the elements of LPXRFa and Kiss systems in the brain-pituitary axis of half-smooth tongue sole. Food deprivation and refeeding differentially regulated the two systems, which provided additional evidence for the involvement of the LPXRFa and Kiss systems in the regulation of reproduction by energy balance in non-mammalian species. CI - Copyright (c) 2023 Wang, Cui, Xu, Zhang, Jiang and Liu. FAU - Wang, Bin AU - Wang B AD - Key Laboratory of Sustainable Development of Marine Fisheries, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, China. AD - Joint Laboratory for Deep Blue Fishery Engineering, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao, China. FAU - Cui, Aijun AU - Cui A AD - Key Laboratory of Sustainable Development of Marine Fisheries, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, China. AD - Joint Laboratory for Deep Blue Fishery Engineering, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao, China. FAU - Xu, Yongjiang AU - Xu Y AD - Key Laboratory of Sustainable Development of Marine Fisheries, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, China. AD - Joint Laboratory for Deep Blue Fishery Engineering, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao, China. FAU - Zhang, Yaxing AU - Zhang Y AD - Key Laboratory of Sustainable Development of Marine Fisheries, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, China. FAU - Jiang, Yan AU - Jiang Y AD - Key Laboratory of Sustainable Development of Marine Fisheries, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, China. AD - Joint Laboratory for Deep Blue Fishery Engineering, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao, China. FAU - Liu, Xuezhou AU - Liu X AD - Key Laboratory of Sustainable Development of Marine Fisheries, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, China. AD - Joint Laboratory for Deep Blue Fishery Engineering, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao, China. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20230324 PL - Switzerland TA - Front Endocrinol (Lausanne) JT - Frontiers in endocrinology JID - 101555782 RN - 0 (Kisspeptins) RN - 0 (RNA, Messenger) SB - IM MH - Animals MH - *Kisspeptins/genetics/metabolism MH - *Food Deprivation MH - Fishes/genetics MH - Brain/metabolism MH - RNA, Messenger/genetics/metabolism MH - Gene Expression PMC - PMC10081681 OTO - NOTNLM OT - Cynoglossus semilaevis OT - LPXRFa OT - LPXRFa receptor OT - kisspeptin OT - kisspeptin receptor COIS- The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest. EDAT- 2023/04/11 06:00 MHDA- 2023/04/11 06:42 PMCR- 2023/01/01 CRDT- 2023/04/10 03:51 PHST- 2022/11/16 00:00 [received] PHST- 2023/03/15 00:00 [accepted] PHST- 2023/04/11 06:42 [medline] PHST- 2023/04/10 03:51 [entrez] PHST- 2023/04/11 06:00 [pubmed] PHST- 2023/01/01 00:00 [pmc-release] AID - 10.3389/fendo.2023.1099832 [doi] PST - epublish SO - Front Endocrinol (Lausanne). 2023 Mar 24;14:1099832. doi: 10.3389/fendo.2023.1099832. eCollection 2023.