1
|
Coy D, Cruz-Carrillo A, Lizarazo-Cely S. Some phytotoxins causing reproductive alterations in ruminants. Toxicon 2024; 247:107769. [PMID: 38795851 DOI: 10.1016/j.toxicon.2024.107769] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2024] [Revised: 05/11/2024] [Accepted: 05/17/2024] [Indexed: 05/28/2024]
Abstract
The presence of phytotoxins in plants constitutes a health risk for herbivores, particularly on ruminants who accidently consume them. Among the adverse effects produced by these are reproductive alterations, represented by abortion, infertility, and morphological alterations in neonates, which are frequently attributed to other causes. While in some cases the plants that contain such metabolites are known, other times they are not, leading to alterations that are difficult to treat considering that their toxicodynamics are unknown. The objective of this documentary research is to provide information on how metabolites such as phytoestrogens, L-mimosine, labdane diterpenoids - isocupressic acid, quinolizidine alkaloids and piperidine swainsonine, anabasine, coniine and associated alkaloids, among others, exert their action in the animal organism and the effects they produce.
Collapse
|
2
|
Martinez A, Apostolo R, Herrera R, Gardner D, Borrelli L, Zabaleta G, Robles C, Ferrería J. Pine needle abortions in cattle due to consumption of Pinus ponderosa in Argentina: Case reports. Toxicon 2024; 242:107712. [PMID: 38614243 DOI: 10.1016/j.toxicon.2024.107712] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2023] [Revised: 04/04/2024] [Accepted: 04/05/2024] [Indexed: 04/15/2024]
Abstract
Two outbreaks of pine needle abortions in cattle are here reported for the first time in Argentina. The cases occurred in Chubut and Neuquén provinces in the Patagonia region, causing 29.6% and 9% of abortions in each herd respectively. In both outbreaks, the dams were in the last third of gestation, and, due to a period of cold, snow and lack of available forage, they gained access to Pinus ponderosa and Pinus contorta forests. No pathological lesions, serological, molecular, or microbiological evidence of infectious causes were observed in any of the six fetuses analyzed. Microhistological analysis of feces confirmed higher presence of fragments of Pinus spp. needles in the diet of affected dams than in that of non-affected ones (12.2 vs 3.0%). Moreover, toxicological analysis showed higher tetrahydroagathic acid in the sera of affected dams than in that of non-affected ones (10.05 vs 2.81 ppm). In addition, this acid was detected in different fetal fluids (3.6-8.1 ppm) of the six fetuses analyzed. Interestingly, isocupressic acid was detected only in needles of P. ponderosa, and its content was lower than that found in other areas of the world (0.31 and 0.5% in Chubut and Neuquén respectively). These results confirm that the consumption of P. ponderosa by dams could have been the cause of these abortion outbreaks, a fact that should be considered as differential diagnosis in abortions of cattle, especially in silvopastoral systems of Argentina.
Collapse
Affiliation(s)
- A Martinez
- Grupo de Salud Animal, Instituto Nacional de Tecnología Agropecuaria - Estación Experimental Agropecuaria Bariloche, San Carlos de Bariloche, Río Negro, Argentina.
| | - R Apostolo
- Grupo Producción Animal, Instituto Nacional de Tecnología Agropecuaria - Estación Experimental Agropecuaria Esquel, Chubut, Argentina
| | - R Herrera
- Grupo de Salud Animal, Instituto Nacional de Tecnología Agropecuaria - Estación Experimental Agropecuaria Bariloche, San Carlos de Bariloche, Río Negro, Argentina
| | - D Gardner
- USDA ARS Poisonous Plant Research Laboratory, Logan, UT, 84341, USA
| | - L Borrelli
- Laboratorio de Microhistología Vegetal, Instituto Nacional de Tecnología Agropecuaria - Estación Experimental Agropecuaria Bariloche, San Carlos de Bariloche, Río Negro, Argentina
| | - G Zabaleta
- Grupo de Salud Animal, Instituto Nacional de Tecnología Agropecuaria - Estación Experimental Agropecuaria Bariloche, San Carlos de Bariloche, Río Negro, Argentina
| | - C Robles
- Grupo de Salud Animal, Instituto Nacional de Tecnología Agropecuaria - Estación Experimental Agropecuaria Bariloche, San Carlos de Bariloche, Río Negro, Argentina; Instituto Nacional de Tecnología Agropecuaria - Estación Experimental Agropecuaria Bariloche, San Carlos de Bariloche, Río Negro, Argentina
| | - J Ferrería
- Freelance Vet - San Martín de los Andes, Neuquén, Argentina
| |
Collapse
|
3
|
Spontaneous abortion in cattle after consumption of Hesperocyparis (Cupressus) macrocarpa (Hartw.) Bartel and Cupressus arizonica (Greene) needles in Uruguay. Toxicon 2020; 181:53-56. [PMID: 32353569 DOI: 10.1016/j.toxicon.2020.04.104] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Revised: 04/11/2020] [Accepted: 04/25/2020] [Indexed: 11/21/2022]
Abstract
An outbreak of cattle abortion associated with the consumption of Hesperocyparis (Cupressus) macrocarpa and Cupressus arizonica needles has been reported in Uruguay. Twenty-five of 125 pregnant heifers in late-term pregnancy aborted after being introduced into a paddock containing numerous H. macrocarpa, C. arizonica and Casuarina cunninghamiana trees. There were no significant macroscopic or histological findings in the two fetuses analyzed. Abortifacient labdane acids were detected in the needles of H. macrocarpa (1.68%, D.W.) and C. arizonica (0.36%, D.W.) but none were found in C. cunninghamiana.
Collapse
|
4
|
Han X, Wang Y, Chen T, Wilson MJ, Pan F, Wu X, Rui C, Chen D, Tang Q, Wu W. Inhibition of progesterone biosynthesis induced by deca-brominated diphenyl ether (BDE-209) in mouse Leydig tumor cell (MLTC-1). Toxicol In Vitro 2019; 60:383-388. [PMID: 31132478 DOI: 10.1016/j.tiv.2019.05.016] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2018] [Revised: 04/26/2019] [Accepted: 05/22/2019] [Indexed: 01/23/2023]
Abstract
Polybrominated Diphenyl Ethers (PBDEs) have been extensively applied as flame retardants in different polymeric materials since the 1970s, which have become a group of long-lasting environmental pollutants. They have been reported from previous studies to accumulate and then disrupt the endocrine system in humans. However, the mechanisms are still little known. In the present study, mouse Leydig tumor cells were utilized to investigate steroidogenic activity influenced by deca-brominated diphenyl ether (BDE-209). Our data showed that BDE-209 did not change intracellular cAMP level in the presence of human Chorionic Gonadotropin (hCG), cholera toxin (CT), and forskolin, which indicated that reduction of progesterone may not be related to the hCG-cAMP signal pathway in MLTC-1 cells. Furthermore, the reduction of progesterone generation was not shifted by 8-Br-cAMP, an analog of cAMP, indicating that BDE-209 may inhibit post-cAMP sites. In addition, mRNA expression levels of P450 side-chain cleavage enzyme (P450scc) and 3β-hydroxysteroid dehydrogenase (3β-HSD) presented a concentration-dependent decrease. In conclusion, this study suggested that BDE-209 may attenuate the progesterone secretion mainly through lowering the expression of these two enzymes.
Collapse
Affiliation(s)
- Xiumei Han
- State Key Laboratory of Reproductive Medicine, Institute of Toxicology, Nanjing Medical University, Nanjing, China; Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Yanchen Wang
- State Key Laboratory of Reproductive Medicine, Institute of Toxicology, Nanjing Medical University, Nanjing, China; Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, China; School of Public Health and Tropical Medicine, Tulane University, New Orleans, USA
| | - Ting Chen
- Nanjing Maternal and Child Health Medical Institute, The Affiliated Obstetrics and Gynecology Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, China
| | - Mark J Wilson
- School of Public Health and Tropical Medicine, Tulane University, New Orleans, USA
| | - Feng Pan
- Department of Urology, The Affiliated Obstetrics and Gynecology Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, China
| | - Xian Wu
- National Toxicology Program Laboratory, Division of the National Toxicology Program, National Institute of Environmental Health Sciences, Research Triangle Park, NC, USA
| | - Can Rui
- Department of Obstetrics, The Affiliated Obstetrics and Gynecology Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, China
| | - Daozhen Chen
- Clinical laboratory, Wuxi Maternity and Child Health Hospital Affiliated to Nanjing Medical University, Wuxi, China.
| | - Qiuqin Tang
- Department of Obstetrics, The Affiliated Obstetrics and Gynecology Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, China.
| | - Wei Wu
- State Key Laboratory of Reproductive Medicine, Institute of Toxicology, Nanjing Medical University, Nanjing, China; Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, China; Department of Health and Human Services, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC, USA.
| |
Collapse
|
5
|
Lin YC, Chiu CH, Liu HC, Wang JY. Curcumin downregulates 8-br-cAMP-induced steroidogenesis in mouse Leydig cells by suppressing the expression of Cyp11a1 and StAR independently of the PKA-CREB pathway. Endocr J 2018; 65:833-840. [PMID: 29887570 DOI: 10.1507/endocrj.ej18-0010] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Although curcumin was widely applied as a functional food for different diseases, it was found to reduce serum testosterone level and fertility in male animals by unknown molecular mechanisms. Here in our study, we investigated the possible mechanisms of curcumin-suppressed testosterone production in Leydig cells. Our enzyme immunoassay results showed that curcumin cell-autonomously suppressed ovine luteinizing hormone-stimulated testosterone production in primary Leydig cells and 8-bromo-cyclic adenosine monophosphate (8-br-cAMP)-induced progesterone production in MA-10 cells. Furthermore, our real-time PCR, Western blot, and 22R-OHC/pregnenolone supplementing experiment data demonstrated that curcumin suppressed 8-br-cAMP-induced steroidogenesis in Leydig cells by inhibiting the expression of StAR and Cyp11a1. Interestingly, our Western blot data showed that although curcumin suppressed PKA activity, it did not alter the 8-br-cAMP-induced phosphorylation of CREB. On the contrary, the real-time PCR results showed that curcumin suppressed 8-br-cAMP-induced expression of Nr5a1 and Fos, which are crucial for cAMP-stimulated StAR and Cyp11a1 expression in Leydig cells. Collectively, our data demonstrated that curcumin may suppress cAMP-induced steroidogenesis in mouse Leydig cells by down-regulating Nr5a1/Fos-controlled StAR and Cyp11a1 expression independently of the PKA-CREB signaling pathway.
Collapse
Affiliation(s)
- Yi-Chun Lin
- School of Veterinary Medicine, National Taiwan University, Taipei 10617, Taiwan
- Department of Animal Science and Technology, National Taiwan University, Taipei 10617, Taiwan
| | - Chih-Hsien Chiu
- Department of Animal Science and Technology, National Taiwan University, Taipei 10617, Taiwan
| | - Hung-Chang Liu
- Thoracic Surgery, Mackay Memorial Hospital, Taipei 104, Taiwan
- Mackay Junior College of Medicine, Nursing, and Management, Taipei 11260, Taiwan
- Mackay Medical College, New Taipei City 25245, Taiwan
| | - Jyun-Yuan Wang
- Department of Animal Science and Technology, National Taiwan University, Taipei 10617, Taiwan
| |
Collapse
|
6
|
Ma Y, Gong YJ, Xu QQ, Zou X. Molecular mechanism of mercuric chloride inhibiting progesterone secretion in ovarian granulosa cells of laying hens. J Anim Physiol Anim Nutr (Berl) 2018; 102:1533-1542. [PMID: 30144178 DOI: 10.1111/jpn.12955] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2018] [Revised: 06/12/2018] [Accepted: 06/14/2018] [Indexed: 01/08/2023]
Abstract
This study investigated the effect of mercury (Hg) on progesterone secretion in ovarian granulosa cells of laying hens. The gene expressions of steroidogenic acute regulatory protein (StAR), cytochrome P450 cholesterol side-chain cleavage (P450scc) and 3β-hydroxysteroid dehydrogenase (3β-HSD), cyclic adenosine monophosphate (cAMP)-protein kinase A (PKA) pathway and intracellular calcium ion (Ca2+ ) were further investigated to uncover the molecular mechanism. Results revealed that the cell viability was gradually decreased after Hg exposure from 0 to 24 hr. Besides, progesterone secretion was significantly decreased (p < 0.05) as the concentration of Hg increased from 0 to 4 μM followed by a plateau in 6 μM Hg group at 12-hr time point. Compared with 0 μM Hg group, 4 and 6 μM Hg for 48 hr had significantly decreased progesterone secretion (p < 0.05), while Hg exposure for 6 and 24 hr had no apparent effect on progesterone secretion. In addition, positive correlations occurred among intracellular progesterone, cAMP, PKA, mRNA expressions of StAR, P450scc and 3β-HSD at 12-h and 24-h time points. On the contrary, intracellular Ca2+ level was negatively related to cAMP level at 6 time point and was negatively correlated with progesterone and PKA level at 48 time point. It could be concluded that Hg dose- and time-dependently inhibited progesterone secretion by means of attenuating cAMP-PKA signal pathway, gene expressions of StAR, P450scc and 3β-HSD and enhancing intracellular Ca2+ in ovarian granulosa cells of laying hens.
Collapse
Affiliation(s)
- Yan Ma
- Key Laboratory of Animal Feed and Nutrition of Zhejiang Province, Feed Science Institute, College of Animal Science, Zhejiang University, Hangzhou, China
| | - Yujie J Gong
- Key Laboratory of Animal Feed and Nutrition of Zhejiang Province, Feed Science Institute, College of Animal Science, Zhejiang University, Hangzhou, China
| | - Qianqian Q Xu
- Key Laboratory of Animal Feed and Nutrition of Zhejiang Province, Feed Science Institute, College of Animal Science, Zhejiang University, Hangzhou, China
| | - Xiaoting Zou
- Key Laboratory of Animal Feed and Nutrition of Zhejiang Province, Feed Science Institute, College of Animal Science, Zhejiang University, Hangzhou, China
| |
Collapse
|
7
|
Stewart WC, Whitney TR, Scholljegerdes EJ, Hallford DM, Walker JW, Adams RP, Naumann HD. Effects of feeding ground redberry juniper (Juniperus pinchotii) to gestating ewes on pre- and postpartum performance, serum metabolites and hormones, milk fatty acid composition, and progeny preweaning performance. J Anim Sci 2017. [DOI: 10.2527/jas.2016.1090] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
8
|
Huang Y, Pei Y, Guan H, Wei S, Wu H, Zhou Y, Pei J, Chen L, Wang Y, Chen Y, Han Q, Wang D, Wang D. Stability and Pharmacological Effects of Gene-Recombinant Wild Type and Mutant Human Adrenocorticotropic Hormone. Pharm Res 2017; 34:793-799. [PMID: 28127707 DOI: 10.1007/s11095-017-2107-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2016] [Accepted: 01/13/2017] [Indexed: 11/30/2022]
Abstract
PURPOSE Adrenocorticotropic hormone (ACTH) is the only medicine for treating infantile spasms, however, it is catabolized rapidly. In order to make an ACTH derivative with prolonged effects, we prepared genetically engineered wild type (WT) and mutant ACTH candidates based on protease database analysis, and compared their stability and pharmacological effects. METHODS For analysis of stability, serum concentration of WT and mutant ACTH candidates were tested at different time after intravenous injection, and elimination curves were calculated to compare pharmacokinetic properties of WT and E5D-mutant ACTH. For comparison of their pharmacological effects, levels of glucocorticoids (GC) in the blood serum and secreted from cultured Y1 mouse adrenal cells were tested, and their effects on the signaling pathway mediating the expression of genes critical for GC synthesis were analyzed. The effects of ACTHs on transcription levels of the genes involved in GC synthesis were tested by qPCR. RESULTS The blood concentration of E5D ACTH is higher than the WT after injection, and E5D mutation increased the t1/2 and AUC of ACTH. Pharmacological experiments showed that the effects of E5D and Y2S mutant ACTH on the production of GC and the critical signal transduction were equivalent to those of WT. WT, E5D and Y2S ACTH also have similar effects on the transcriptional levels of the genes for GC synthesis, including STAR, P450-scc, 3β-HSD, and SF-1. CONCLUSION The stability of E5D mutant ACTH is higher than WT ACTH. The pharmacological effects of E5D ACTH is equivalent to those of WT ACTH.
Collapse
Affiliation(s)
- Yonglin Huang
- Laboratory of Biotechnology and Molecular Pharmacology, Hainan Province Key Laboratory for Sustainable Utilization of Tropical Bioresources, Hainan University, Hainan, 570208, China
| | - Yechun Pei
- Laboratory of Biotechnology and Molecular Pharmacology, Hainan Province Key Laboratory for Sustainable Utilization of Tropical Bioresources, Hainan University, Hainan, 570208, China
| | - Huai Guan
- Laboratory of Biotechnology and Molecular Pharmacology, Hainan Province Key Laboratory for Sustainable Utilization of Tropical Bioresources, Hainan University, Hainan, 570208, China
| | - Shuangshuang Wei
- Laboratory of Biotechnology and Molecular Pharmacology, Hainan Province Key Laboratory for Sustainable Utilization of Tropical Bioresources, Hainan University, Hainan, 570208, China
| | - Hao Wu
- Laboratory of Biotechnology and Molecular Pharmacology, Hainan Province Key Laboratory for Sustainable Utilization of Tropical Bioresources, Hainan University, Hainan, 570208, China
| | - Yuan Zhou
- Laboratory of Biotechnology and Molecular Pharmacology, Hainan Province Key Laboratory for Sustainable Utilization of Tropical Bioresources, Hainan University, Hainan, 570208, China.,School of Molecular and Cellular Biology, University of Illinois at Urbana-Champaign, Illinois, 61801, USA
| | - Jinli Pei
- Laboratory of Biotechnology and Molecular Pharmacology, Hainan Province Key Laboratory for Sustainable Utilization of Tropical Bioresources, Hainan University, Hainan, 570208, China
| | - Lintao Chen
- Laboratory of Biotechnology and Molecular Pharmacology, Hainan Province Key Laboratory for Sustainable Utilization of Tropical Bioresources, Hainan University, Hainan, 570208, China
| | - Yuerong Wang
- Laboratory of Biotechnology and Molecular Pharmacology, Hainan Province Key Laboratory for Sustainable Utilization of Tropical Bioresources, Hainan University, Hainan, 570208, China
| | - Yibo Chen
- Laboratory of Biotechnology and Molecular Pharmacology, Hainan Province Key Laboratory for Sustainable Utilization of Tropical Bioresources, Hainan University, Hainan, 570208, China
| | - Qian Han
- Laboratory of Biotechnology and Molecular Pharmacology, Hainan Province Key Laboratory for Sustainable Utilization of Tropical Bioresources, Hainan University, Hainan, 570208, China
| | - Daming Wang
- Qiqihar Teachers College, Heilongjiang, 161005, China.
| | - Dayong Wang
- Laboratory of Biotechnology and Molecular Pharmacology, Hainan Province Key Laboratory for Sustainable Utilization of Tropical Bioresources, Hainan University, Hainan, 570208, China.
| |
Collapse
|
9
|
Snider DB, Gardner DR, Janke BH, Ensley SM. Pine needle abortion biomarker detected in bovine fetal fluids. J Vet Diagn Invest 2014; 27:74-9. [DOI: 10.1177/1040638714554443] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Pine needle abortion is a naturally occurring condition in free-range cattle caused by the consumption of pine needles from select species of cypress, juniper, pine, and spruce trees. Confirmatory diagnosis of pine needle abortion has previously relied on a combined case history of pine needle consumption and detection of isocupressic acid in a sample from the dam. Stable metabolites of isocupressic acid include agathic acid, dihydroagathic acid, and tetrahydroagathic acid, which have been shown to be present in the serum of mature animals for a few days following consumption of pine needles. As maternal serum is infrequently submitted for diagnosis of cattle abortions, a diagnostic assay capable of confirming isocupressic acid exposure in other matrices would be desirable. To the authors’ knowledge, no previous investigations have indicated whether these stable metabolites of isocupressic acid cross the placenta or are detectable in fetal tissues. Therefore, the presence of agathic acid, dihydroagathic acid, and tetrahydroagathic acid was evaluated using gas chromatography–mass spectroscopy on fetal thoracic fluid and stomach contents collected from 2 aborted bovine fetuses with a recent herd history of pine needle consumption by the dams and a subsequent abortion outbreak in the herd. Only tetrahydroagathic acid was detected in the fetal thoracic fluid and fetal stomach contents. The current study encourages diagnosticians to collect fetal thoracic fluids to permit the detection of tetrahydroagathic acid in cases of suspected pine needle abortion.
Collapse
Affiliation(s)
- Douglas B. Snider
- Veterinary Diagnostic Laboratory, Department of Veterinary Diagnostic and Production Animal Medicine, College of Veterinary Medicine, Iowa State University, Ames, IA (Snider, Janke, Ensley)
- U.S. Department of Agriculture, Agricultural Research Service, Poisonous Plant Research Laboratory, Logan, UT (Gardner)
| | - Dale R. Gardner
- Veterinary Diagnostic Laboratory, Department of Veterinary Diagnostic and Production Animal Medicine, College of Veterinary Medicine, Iowa State University, Ames, IA (Snider, Janke, Ensley)
- U.S. Department of Agriculture, Agricultural Research Service, Poisonous Plant Research Laboratory, Logan, UT (Gardner)
| | - Bruce H. Janke
- Veterinary Diagnostic Laboratory, Department of Veterinary Diagnostic and Production Animal Medicine, College of Veterinary Medicine, Iowa State University, Ames, IA (Snider, Janke, Ensley)
- U.S. Department of Agriculture, Agricultural Research Service, Poisonous Plant Research Laboratory, Logan, UT (Gardner)
| | - Steven M. Ensley
- Veterinary Diagnostic Laboratory, Department of Veterinary Diagnostic and Production Animal Medicine, College of Veterinary Medicine, Iowa State University, Ames, IA (Snider, Janke, Ensley)
- U.S. Department of Agriculture, Agricultural Research Service, Poisonous Plant Research Laboratory, Logan, UT (Gardner)
| |
Collapse
|
10
|
Hsu MC, Wang JY, Lee YJ, Jong DS, Tsui KH, Chiu CH. Kisspeptin modulates fertilization capacity of mouse spermatozoa. Reproduction 2014; 147:835-45. [PMID: 24567427 DOI: 10.1530/rep-13-0368] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Kisspeptin acts as an upstream regulator of the hypothalamus-pituitary-gonad axis, which is one of the main regulatory systems for mammalian reproduction. Kiss1 and its receptor Kiss1r (also known as G protein-coupled receptor 54 (Gpr54)) are expressed in various organs, but their functions are not well understood. The purpose of this study was to investigate the expression profiles and functions of kisspeptin and KISS1R in the reproductive tissues of imprinting control region mice. To identify the expression pattern and location of kisspeptin and KISS1R in gonads, testes and ovarian tissues were examined by immunohistochemical or immunofluorescent staining. Kisspeptin and KISS1R were expressed primarily in Leydig cells and seminiferous tubules respectively. KISS1R was specifically localized in the acrosomal region of spermatids and mature spermatozoa. Kisspeptin, but not KISS1R, was expressed in the cumulus-oocyte complex and oviductal epithelium of ovarian and oviductal tissues. The sperm intracellular calcium concentrations significantly increased in response to treatment with kisspeptin 10 in Fluo-4-loaded sperm. The IVF rates decreased after treatment of sperm with the kisspeptin antagonist peptide 234. These results suggest that kisspeptin and KISS1R might be involved in the fertilization process in the female reproductive tract. In summary, this study indicates that kisspeptin and KISS1R are expressed in female and male gametes, respectively, and in mouse reproductive tissues. These data strongly suggest that the kisspeptin system could regulate mammalian fertilization and reproduction.
Collapse
Affiliation(s)
- Meng-Chieh Hsu
- Department of Animal Science and TechnologyCollege of Bio-Resources and Agriculture, National Taiwan University, No. 50, Ln. 155, Sec. 3, Keelung Road, Taipei 10673, TaiwanDepartment of Obstetrics and GynecologyKaohsiung Veterans General Hospital, Kaohsiung 81346, Taiwan, Republic of China
| | - Jyun-Yuan Wang
- Department of Animal Science and TechnologyCollege of Bio-Resources and Agriculture, National Taiwan University, No. 50, Ln. 155, Sec. 3, Keelung Road, Taipei 10673, TaiwanDepartment of Obstetrics and GynecologyKaohsiung Veterans General Hospital, Kaohsiung 81346, Taiwan, Republic of China
| | - Yue-Jia Lee
- Department of Animal Science and TechnologyCollege of Bio-Resources and Agriculture, National Taiwan University, No. 50, Ln. 155, Sec. 3, Keelung Road, Taipei 10673, TaiwanDepartment of Obstetrics and GynecologyKaohsiung Veterans General Hospital, Kaohsiung 81346, Taiwan, Republic of China
| | - De-Shien Jong
- Department of Animal Science and TechnologyCollege of Bio-Resources and Agriculture, National Taiwan University, No. 50, Ln. 155, Sec. 3, Keelung Road, Taipei 10673, TaiwanDepartment of Obstetrics and GynecologyKaohsiung Veterans General Hospital, Kaohsiung 81346, Taiwan, Republic of China
| | - Kuan-Hao Tsui
- Department of Animal Science and TechnologyCollege of Bio-Resources and Agriculture, National Taiwan University, No. 50, Ln. 155, Sec. 3, Keelung Road, Taipei 10673, TaiwanDepartment of Obstetrics and GynecologyKaohsiung Veterans General Hospital, Kaohsiung 81346, Taiwan, Republic of China
| | - Chih-Hsien Chiu
- Department of Animal Science and TechnologyCollege of Bio-Resources and Agriculture, National Taiwan University, No. 50, Ln. 155, Sec. 3, Keelung Road, Taipei 10673, TaiwanDepartment of Obstetrics and GynecologyKaohsiung Veterans General Hospital, Kaohsiung 81346, Taiwan, Republic of China
| |
Collapse
|