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Mishra GK, Patra MK, Singh LK, Sheikh PA, Upmanyu V, Chakravarti S, Karikalan M, Sonwane A, Singh SK, Das GK, Kumar H, Krishnaswamy N. Expression of Kisspeptin and its receptor in the hypothalamus of cyclic and acyclic buffalo (Bubalus bubalis). Theriogenology 2019; 139:167-177. [PMID: 31419703 DOI: 10.1016/j.theriogenology.2019.08.009] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2019] [Revised: 06/20/2019] [Accepted: 08/05/2019] [Indexed: 11/26/2022]
Abstract
Kisspeptin (Kiss1), neurokinin-B (NKB) and dynorphin (Dyn) neurons regulate the surge and pulsatile centres of gonadotropin releasing hormone (GnRH) in the hypothalamus and are modulated by the ovarian steroids. Accordingly, we studied the temporospatial expression of Kiss1, its receptor and other genes that regulate GnRH in the preoptic area (POA) and arcuate (ARC) regions of hypothalamus at different phases of bubaline estrous cycle. Brain of buffalo (n = 32) was collected immediately after exsanguination and categorized into early luteal (EL), mid luteal (ML), follicular (FL) stages and acyclic (n = 8/group). Total RNA was extracted from the POA and ARC of each stage and real time PCR amplification of Kiss1, Kiss1r, NKB, NKB receptor (NKBR), Dyn, Dyn receptor (OPRK1), GnRH1, ERα, PR, LEPR and GHSR was done using GAPDH as endogenous control and acyclic stage as calibrator group. Further, immunolocalization of Kiss1 and Kiss1r was done on the hypothalamus. In the POA, significant up-regulation of Kiss1 and NKB with a concomitant down-regulation of Dyn transcripts was recorded at FL stage. There was, however, down-regulation of Kiss1 and Kiss1r during the EL perhaps due to the loss of estradiol as a consequence of ovulation. On the other hand, in the ARC, there was a significant up-regulation of Kiss1 and Dyn at FL and ML, while NKB transcript was consistently down-regulated at any stage of estrous cycle. In the POA, expression of ERα was not modulated; however, PR was down-regulated in the EL. In the ARC, the ERα expression was significantly up-regulated in the EL, whereas, PR was moderately expressed irrespective of the stage of estrous cycle. The immunolocalization study revealed the presence of Kiss1 and Kiss1r in the POA and ARC in the cyclic buffalo with relative abundance at FL. The transcriptional profile of the genes suggests that there is estrous cycle stage specific expression of Kiss1, Kiss1r and other GnRH regulating genes in the POA and ARC regions of hypothalamus in the buffalo. Up-regulation of Kiss1r in the POA during ML and ARC during EL indicates the involvement of kisspeptinergic system in the regulation of low LH pulse frequencies during the early and mid luteal phases in the cyclic buffalo.
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Affiliation(s)
- G K Mishra
- Division of Animal Reproduction, ICAR-Indian Veterinary Research Institute, Izatnagar, Uttar Pradesh, 234 122, India
| | - M K Patra
- Division of Animal Reproduction, ICAR-Indian Veterinary Research Institute, Izatnagar, Uttar Pradesh, 234 122, India.
| | - L K Singh
- Division of Animal Reproduction, Gynaecology and Obstetrics, ICAR-National Dairy Research Institute, Karnal, 132 001, Haryana, India
| | - P A Sheikh
- Division of Animal Reproduction, ICAR-Indian Veterinary Research Institute, Izatnagar, Uttar Pradesh, 234 122, India
| | - V Upmanyu
- Biological Standardization Division, ICAR-Indian Veterinary Research Institute, Izatnagar, Uttar Pradesh, 234 122, India
| | - S Chakravarti
- Biological Products Division, ICAR-Indian Veterinary Research Institute, Izatnagar, Uttar Pradesh, 234 122, India
| | - M Karikalan
- Centre for Wildlife Conservation, Management and Disease Surveillance, ICAR-Indian Veterinary Research Institute, Izatnagar, Uttar Pradesh, 234 122, India
| | - A Sonwane
- Animal Genetics Division, ICAR-Indian Veterinary Research Institute, Izatnagar, Uttar Pradesh, 234 122, India
| | - S K Singh
- Division of Animal Reproduction, ICAR-Indian Veterinary Research Institute, Izatnagar, Uttar Pradesh, 234 122, India
| | - G K Das
- Division of Animal Reproduction, ICAR-Indian Veterinary Research Institute, Izatnagar, Uttar Pradesh, 234 122, India
| | - H Kumar
- Division of Animal Reproduction, ICAR-Indian Veterinary Research Institute, Izatnagar, Uttar Pradesh, 234 122, India
| | - N Krishnaswamy
- Division of Animal Reproduction, ICAR-Indian Veterinary Research Institute, Izatnagar, Uttar Pradesh, 234 122, India
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Guran T, Tolhurst G, Bereket A, Rocha N, Porter K, Turan S, Gribble FM, Kotan LD, Akcay T, Atay Z, Canan H, Serin A, O'Rahilly S, Reimann F, Semple RK, Topaloglu AK. Hypogonadotropic hypogonadism due to a novel missense mutation in the first extracellular loop of the neurokinin B receptor. J Clin Endocrinol Metab 2009; 94:3633-3639. [PMID: 19755480 PMCID: PMC4306717 DOI: 10.1210/jc.2009-0551] [Citation(s) in RCA: 110] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
CONTEXT The neurokinin B (NKB) receptor, encoded by TACR3, is widely expressed within the central nervous system, including hypothalamic nuclei involved in regulating GnRH release. We have recently reported two mutations in transmembrane segments of the receptor and a missense mutation in NKB in patients with normosmic isolated hypogonadotropic hypogonadism (nIHH). PATIENTS AND METHODS We sequenced the TACR3 gene in a family in which three siblings had nIHH. The novel mutant receptor thus identified was studied in a heterologous expression system using calcium flux as the functional readout. RESULTS All affected siblings were homozygous for the His148Leu mutation, in the first extracellular loop of the NKB receptor. The His148Leu mutant receptor exhibited profoundly impaired signaling in response to NKB (EC(50) = 3 +/- 0.1 nm and >5 microm for wild-type and His148Leu, respectively). The location of the mutation in an extracellular part of the receptor led us also to test whether senktide, a synthetic NKB analog, may retain ability to stimulate the mutant receptor. However, the signaling activity of the His148Leu receptor in response to senktide was also severely impaired (EC(50) = 1 +/- 1 nm for wild-type and no significant response of His148Leu to 10 microm). CONCLUSIONS Homozygosity for the TACR3 His148Leu mutation leads to failure of sexual maturation in humans, whereas signaling by the mutant receptor in vitro in response to either NKB or senktide is severely impaired. These observations further strengthen the link between NKB, the NKB receptor, and regulation of human reproductive function.
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Affiliation(s)
- Tulay Guran
- Pediatric Endocrinology (T.G., A.B., S.T., T.A., Z.A.), Marmara University Hospital, Altunizade, 34662 Istanbul, Turkey; University of Cambridge (F.R., F.M.G., G.T.), Department of Clinical Biochemistry, Addenbrooke's Hospital, Cambridge CB2 8RP, United Kingdom; University of Cambridge Metabolic Research Laboratories (N.R., K.P., S.O., R.K.S.), Institute of Metabolic Science, Addenbrooke's Hospital, Cambridge CB2 8RP, United Kingdom; Forensic Medicine (L.D.K., H.C., A.S.), Cukurova University, Faculty of Medicine, Balcali, 01330 Adana, Turkey; and Pediatric Endocrinology and Metabolism (A.K.T.), Cukurova University, Faculty of Medicine, Balcali, 01330 Adana, Turkey
| | - Gwen Tolhurst
- Pediatric Endocrinology (T.G., A.B., S.T., T.A., Z.A.), Marmara University Hospital, Altunizade, 34662 Istanbul, Turkey; University of Cambridge (F.R., F.M.G., G.T.), Department of Clinical Biochemistry, Addenbrooke's Hospital, Cambridge CB2 8RP, United Kingdom; University of Cambridge Metabolic Research Laboratories (N.R., K.P., S.O., R.K.S.), Institute of Metabolic Science, Addenbrooke's Hospital, Cambridge CB2 8RP, United Kingdom; Forensic Medicine (L.D.K., H.C., A.S.), Cukurova University, Faculty of Medicine, Balcali, 01330 Adana, Turkey; and Pediatric Endocrinology and Metabolism (A.K.T.), Cukurova University, Faculty of Medicine, Balcali, 01330 Adana, Turkey
| | - Abdullah Bereket
- Pediatric Endocrinology (T.G., A.B., S.T., T.A., Z.A.), Marmara University Hospital, Altunizade, 34662 Istanbul, Turkey; University of Cambridge (F.R., F.M.G., G.T.), Department of Clinical Biochemistry, Addenbrooke's Hospital, Cambridge CB2 8RP, United Kingdom; University of Cambridge Metabolic Research Laboratories (N.R., K.P., S.O., R.K.S.), Institute of Metabolic Science, Addenbrooke's Hospital, Cambridge CB2 8RP, United Kingdom; Forensic Medicine (L.D.K., H.C., A.S.), Cukurova University, Faculty of Medicine, Balcali, 01330 Adana, Turkey; and Pediatric Endocrinology and Metabolism (A.K.T.), Cukurova University, Faculty of Medicine, Balcali, 01330 Adana, Turkey
| | - Nuno Rocha
- Pediatric Endocrinology (T.G., A.B., S.T., T.A., Z.A.), Marmara University Hospital, Altunizade, 34662 Istanbul, Turkey; University of Cambridge (F.R., F.M.G., G.T.), Department of Clinical Biochemistry, Addenbrooke's Hospital, Cambridge CB2 8RP, United Kingdom; University of Cambridge Metabolic Research Laboratories (N.R., K.P., S.O., R.K.S.), Institute of Metabolic Science, Addenbrooke's Hospital, Cambridge CB2 8RP, United Kingdom; Forensic Medicine (L.D.K., H.C., A.S.), Cukurova University, Faculty of Medicine, Balcali, 01330 Adana, Turkey; and Pediatric Endocrinology and Metabolism (A.K.T.), Cukurova University, Faculty of Medicine, Balcali, 01330 Adana, Turkey
| | - Keith Porter
- Pediatric Endocrinology (T.G., A.B., S.T., T.A., Z.A.), Marmara University Hospital, Altunizade, 34662 Istanbul, Turkey; University of Cambridge (F.R., F.M.G., G.T.), Department of Clinical Biochemistry, Addenbrooke's Hospital, Cambridge CB2 8RP, United Kingdom; University of Cambridge Metabolic Research Laboratories (N.R., K.P., S.O., R.K.S.), Institute of Metabolic Science, Addenbrooke's Hospital, Cambridge CB2 8RP, United Kingdom; Forensic Medicine (L.D.K., H.C., A.S.), Cukurova University, Faculty of Medicine, Balcali, 01330 Adana, Turkey; and Pediatric Endocrinology and Metabolism (A.K.T.), Cukurova University, Faculty of Medicine, Balcali, 01330 Adana, Turkey
| | - Serap Turan
- Pediatric Endocrinology (T.G., A.B., S.T., T.A., Z.A.), Marmara University Hospital, Altunizade, 34662 Istanbul, Turkey; University of Cambridge (F.R., F.M.G., G.T.), Department of Clinical Biochemistry, Addenbrooke's Hospital, Cambridge CB2 8RP, United Kingdom; University of Cambridge Metabolic Research Laboratories (N.R., K.P., S.O., R.K.S.), Institute of Metabolic Science, Addenbrooke's Hospital, Cambridge CB2 8RP, United Kingdom; Forensic Medicine (L.D.K., H.C., A.S.), Cukurova University, Faculty of Medicine, Balcali, 01330 Adana, Turkey; and Pediatric Endocrinology and Metabolism (A.K.T.), Cukurova University, Faculty of Medicine, Balcali, 01330 Adana, Turkey
| | - Fiona M Gribble
- Pediatric Endocrinology (T.G., A.B., S.T., T.A., Z.A.), Marmara University Hospital, Altunizade, 34662 Istanbul, Turkey; University of Cambridge (F.R., F.M.G., G.T.), Department of Clinical Biochemistry, Addenbrooke's Hospital, Cambridge CB2 8RP, United Kingdom; University of Cambridge Metabolic Research Laboratories (N.R., K.P., S.O., R.K.S.), Institute of Metabolic Science, Addenbrooke's Hospital, Cambridge CB2 8RP, United Kingdom; Forensic Medicine (L.D.K., H.C., A.S.), Cukurova University, Faculty of Medicine, Balcali, 01330 Adana, Turkey; and Pediatric Endocrinology and Metabolism (A.K.T.), Cukurova University, Faculty of Medicine, Balcali, 01330 Adana, Turkey
| | - L Damla Kotan
- Pediatric Endocrinology (T.G., A.B., S.T., T.A., Z.A.), Marmara University Hospital, Altunizade, 34662 Istanbul, Turkey; University of Cambridge (F.R., F.M.G., G.T.), Department of Clinical Biochemistry, Addenbrooke's Hospital, Cambridge CB2 8RP, United Kingdom; University of Cambridge Metabolic Research Laboratories (N.R., K.P., S.O., R.K.S.), Institute of Metabolic Science, Addenbrooke's Hospital, Cambridge CB2 8RP, United Kingdom; Forensic Medicine (L.D.K., H.C., A.S.), Cukurova University, Faculty of Medicine, Balcali, 01330 Adana, Turkey; and Pediatric Endocrinology and Metabolism (A.K.T.), Cukurova University, Faculty of Medicine, Balcali, 01330 Adana, Turkey
| | - Teoman Akcay
- Pediatric Endocrinology (T.G., A.B., S.T., T.A., Z.A.), Marmara University Hospital, Altunizade, 34662 Istanbul, Turkey; University of Cambridge (F.R., F.M.G., G.T.), Department of Clinical Biochemistry, Addenbrooke's Hospital, Cambridge CB2 8RP, United Kingdom; University of Cambridge Metabolic Research Laboratories (N.R., K.P., S.O., R.K.S.), Institute of Metabolic Science, Addenbrooke's Hospital, Cambridge CB2 8RP, United Kingdom; Forensic Medicine (L.D.K., H.C., A.S.), Cukurova University, Faculty of Medicine, Balcali, 01330 Adana, Turkey; and Pediatric Endocrinology and Metabolism (A.K.T.), Cukurova University, Faculty of Medicine, Balcali, 01330 Adana, Turkey
| | - Zeynep Atay
- Pediatric Endocrinology (T.G., A.B., S.T., T.A., Z.A.), Marmara University Hospital, Altunizade, 34662 Istanbul, Turkey; University of Cambridge (F.R., F.M.G., G.T.), Department of Clinical Biochemistry, Addenbrooke's Hospital, Cambridge CB2 8RP, United Kingdom; University of Cambridge Metabolic Research Laboratories (N.R., K.P., S.O., R.K.S.), Institute of Metabolic Science, Addenbrooke's Hospital, Cambridge CB2 8RP, United Kingdom; Forensic Medicine (L.D.K., H.C., A.S.), Cukurova University, Faculty of Medicine, Balcali, 01330 Adana, Turkey; and Pediatric Endocrinology and Metabolism (A.K.T.), Cukurova University, Faculty of Medicine, Balcali, 01330 Adana, Turkey
| | - Husniye Canan
- Pediatric Endocrinology (T.G., A.B., S.T., T.A., Z.A.), Marmara University Hospital, Altunizade, 34662 Istanbul, Turkey; University of Cambridge (F.R., F.M.G., G.T.), Department of Clinical Biochemistry, Addenbrooke's Hospital, Cambridge CB2 8RP, United Kingdom; University of Cambridge Metabolic Research Laboratories (N.R., K.P., S.O., R.K.S.), Institute of Metabolic Science, Addenbrooke's Hospital, Cambridge CB2 8RP, United Kingdom; Forensic Medicine (L.D.K., H.C., A.S.), Cukurova University, Faculty of Medicine, Balcali, 01330 Adana, Turkey; and Pediatric Endocrinology and Metabolism (A.K.T.), Cukurova University, Faculty of Medicine, Balcali, 01330 Adana, Turkey
| | - Ayse Serin
- Pediatric Endocrinology (T.G., A.B., S.T., T.A., Z.A.), Marmara University Hospital, Altunizade, 34662 Istanbul, Turkey; University of Cambridge (F.R., F.M.G., G.T.), Department of Clinical Biochemistry, Addenbrooke's Hospital, Cambridge CB2 8RP, United Kingdom; University of Cambridge Metabolic Research Laboratories (N.R., K.P., S.O., R.K.S.), Institute of Metabolic Science, Addenbrooke's Hospital, Cambridge CB2 8RP, United Kingdom; Forensic Medicine (L.D.K., H.C., A.S.), Cukurova University, Faculty of Medicine, Balcali, 01330 Adana, Turkey; and Pediatric Endocrinology and Metabolism (A.K.T.), Cukurova University, Faculty of Medicine, Balcali, 01330 Adana, Turkey
| | - Stephen O'Rahilly
- Pediatric Endocrinology (T.G., A.B., S.T., T.A., Z.A.), Marmara University Hospital, Altunizade, 34662 Istanbul, Turkey; University of Cambridge (F.R., F.M.G., G.T.), Department of Clinical Biochemistry, Addenbrooke's Hospital, Cambridge CB2 8RP, United Kingdom; University of Cambridge Metabolic Research Laboratories (N.R., K.P., S.O., R.K.S.), Institute of Metabolic Science, Addenbrooke's Hospital, Cambridge CB2 8RP, United Kingdom; Forensic Medicine (L.D.K., H.C., A.S.), Cukurova University, Faculty of Medicine, Balcali, 01330 Adana, Turkey; and Pediatric Endocrinology and Metabolism (A.K.T.), Cukurova University, Faculty of Medicine, Balcali, 01330 Adana, Turkey
| | - Frank Reimann
- Pediatric Endocrinology (T.G., A.B., S.T., T.A., Z.A.), Marmara University Hospital, Altunizade, 34662 Istanbul, Turkey; University of Cambridge (F.R., F.M.G., G.T.), Department of Clinical Biochemistry, Addenbrooke's Hospital, Cambridge CB2 8RP, United Kingdom; University of Cambridge Metabolic Research Laboratories (N.R., K.P., S.O., R.K.S.), Institute of Metabolic Science, Addenbrooke's Hospital, Cambridge CB2 8RP, United Kingdom; Forensic Medicine (L.D.K., H.C., A.S.), Cukurova University, Faculty of Medicine, Balcali, 01330 Adana, Turkey; and Pediatric Endocrinology and Metabolism (A.K.T.), Cukurova University, Faculty of Medicine, Balcali, 01330 Adana, Turkey
| | - Robert K Semple
- Pediatric Endocrinology (T.G., A.B., S.T., T.A., Z.A.), Marmara University Hospital, Altunizade, 34662 Istanbul, Turkey; University of Cambridge (F.R., F.M.G., G.T.), Department of Clinical Biochemistry, Addenbrooke's Hospital, Cambridge CB2 8RP, United Kingdom; University of Cambridge Metabolic Research Laboratories (N.R., K.P., S.O., R.K.S.), Institute of Metabolic Science, Addenbrooke's Hospital, Cambridge CB2 8RP, United Kingdom; Forensic Medicine (L.D.K., H.C., A.S.), Cukurova University, Faculty of Medicine, Balcali, 01330 Adana, Turkey; and Pediatric Endocrinology and Metabolism (A.K.T.), Cukurova University, Faculty of Medicine, Balcali, 01330 Adana, Turkey
| | - A Kemal Topaloglu
- Pediatric Endocrinology (T.G., A.B., S.T., T.A., Z.A.), Marmara University Hospital, Altunizade, 34662 Istanbul, Turkey; University of Cambridge (F.R., F.M.G., G.T.), Department of Clinical Biochemistry, Addenbrooke's Hospital, Cambridge CB2 8RP, United Kingdom; University of Cambridge Metabolic Research Laboratories (N.R., K.P., S.O., R.K.S.), Institute of Metabolic Science, Addenbrooke's Hospital, Cambridge CB2 8RP, United Kingdom; Forensic Medicine (L.D.K., H.C., A.S.), Cukurova University, Faculty of Medicine, Balcali, 01330 Adana, Turkey; and Pediatric Endocrinology and Metabolism (A.K.T.), Cukurova University, Faculty of Medicine, Balcali, 01330 Adana, Turkey
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