PMID- 33522579 OWN - NLM STAT- MEDLINE DCOM- 20211020 LR - 20211020 IS - 1945-7170 (Electronic) IS - 0013-7227 (Linking) VI - 162 IP - 5 DP - 2021 May 1 TI - Neurokinin 3 Receptor Antagonism Ameliorates Key Metabolic Features in a Hyperandrogenic PCOS Mouse Model. LID - bqab020 [pii] LID - 10.1210/endocr/bqab020 [doi] AB - Polycystic ovary syndrome (PCOS) is a prevalent endocrine condition characterized by a range of endocrine, reproductive, and metabolic abnormalities. At present, management of women with PCOS is suboptimal as treatment is only symptomatic. Clinical and experimental advances in our understanding of PCOS etiology support a pivotal role for androgen neuroendocrine actions in PCOS pathogenesis. Hyperandrogenism is a key PCOS trait and androgen actions play a role in regulating the kisspeptin-/neurokinin B-/dynorphin (KNDy) system. This study aimed to investigate if targeted antagonism of neurokinin B signaling through the neurokinin 3 receptor (NK3R) would reverse PCOS traits in a dihydrotestosterone (DHT)-induced mouse model of PCOS. After 3 months, DHT exposure induced key reproductive PCOS traits of cycle irregularity and ovulatory dysfunction, and PCOS-like metabolic traits including increased body weight; white and brown fat pad weights; fasting serum triglyceride and glucose levels, and blood glucose incremental area under the curve. Treatment with a NK3R antagonist (MLE4901) did not impact the observed reproductive defects. In contrast, following NK3R antagonist treatment, PCOS-like females displayed decreased total body weight, adiposity, and adipocyte hypertrophy, but increased respiratory exchange ratio, suggesting NK3R antagonism altered the metabolic status of the PCOS-like females. NK3R antagonism did not improve circulating serum triglyceride or fasted glucose levels. Collectively, these findings demonstrate that NK3R antagonism may be beneficial in the treatment of adverse metabolic features associated with PCOS and support neuroendocrine targeting in the development of novel therapeutic strategies for PCOS. CI - (c) The Author(s) 2021. Published by Oxford University Press on behalf of the Endocrine Society. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com. FAU - Sucquart, Irene E AU - Sucquart IE AD - Fertility and Research Centre, School of Women's & Children's Health, University of New South Wales, Sydney, NSW 2052, Australia. FAU - Nagarkar, Ruchi AU - Nagarkar R AD - Fertility and Research Centre, School of Women's & Children's Health, University of New South Wales, Sydney, NSW 2052, Australia. FAU - Edwards, Melissa C AU - Edwards MC AD - Fertility and Research Centre, School of Women's & Children's Health, University of New South Wales, Sydney, NSW 2052, Australia. FAU - Rodriguez Paris, Valentina AU - Rodriguez Paris V AD - Fertility and Research Centre, School of Women's & Children's Health, University of New South Wales, Sydney, NSW 2052, Australia. FAU - Aflatounian, Ali AU - Aflatounian A AD - Fertility and Research Centre, School of Women's & Children's Health, University of New South Wales, Sydney, NSW 2052, Australia. FAU - Bertoldo, Michael J AU - Bertoldo MJ AD - Fertility and Research Centre, School of Women's & Children's Health, University of New South Wales, Sydney, NSW 2052, Australia. FAU - Campbell, Rebecca E AU - Campbell RE AD - Centre of Neuroendocrinology and Department of Physiology, School of Biomedical Sciences, University of Otago, Dunedin 9054, New Zealand. FAU - Gilchrist, Robert B AU - Gilchrist RB AD - Fertility and Research Centre, School of Women's & Children's Health, University of New South Wales, Sydney, NSW 2052, Australia. FAU - Begg, Denovan P AU - Begg DP AD - Department of Behavioural Neuroscience, School of Psychology, University of New South Wales, Sydney, NSW 2052, Australia. FAU - Handelsman, David J AU - Handelsman DJ AD - Andrology Laboratory, ANZAC Research Institute, University of Sydney, Concord Hospital, NSW 2139, Australia. FAU - Padmanabhan, Vasantha AU - Padmanabhan V AD - Department of Pediatrics, University of Michigan, Ann Arbor, MI 48109, USA. FAU - Anderson, Richard A AU - Anderson RA AD - Medical Research Council Centre for Reproductive Health, University of Edinburgh, Edinburgh EH16 4TJ, UK. FAU - Walters, Kirsty A AU - Walters KA AD - Fertility and Research Centre, School of Women's & Children's Health, University of New South Wales, Sydney, NSW 2052, Australia. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - Endocrinology JT - Endocrinology JID - 0375040 RN - 0 (Androgens) RN - 0 (Blood Glucose) RN - 0 (Lectins) RN - 0 (MLEC protein, human) RN - 0 (Membrane Proteins) RN - 0 (Receptors, Neurokinin-3) RN - 0 (Triglycerides) RN - 08J2K08A3Y (Dihydrotestosterone) SB - IM MH - Androgens/blood MH - Animals MH - Blood Glucose/metabolism MH - Dihydrotestosterone/adverse effects MH - Disease Models, Animal MH - Female MH - Humans MH - Hyperandrogenism/genetics/metabolism MH - Lectins/*administration & dosage MH - Membrane Proteins/*administration & dosage MH - Mice MH - Mice, Inbred C57BL MH - Polycystic Ovary Syndrome/chemically induced/*drug therapy/genetics/metabolism MH - Receptors, Neurokinin-3/*antagonists & inhibitors/genetics/metabolism MH - Triglycerides/blood OTO - NOTNLM OT - animal model OT - hyperandrogenism OT - neuroendocrine OT - polycystic ovary syndrome (PCOS) EDAT- 2021/02/02 06:00 MHDA- 2021/10/21 06:00 CRDT- 2021/02/01 08:45 PHST- 2020/12/03 00:00 [received] PHST- 2021/02/02 06:00 [pubmed] PHST- 2021/10/21 06:00 [medline] PHST- 2021/02/01 08:45 [entrez] AID - 6125280 [pii] AID - 10.1210/endocr/bqab020 [doi] PST - ppublish SO - Endocrinology. 2021 May 1;162(5):bqab020. doi: 10.1210/endocr/bqab020.