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Huerta-Retamal N, Sáez-Espinosa P, Robles-Gómez L, Romero A, Aizpurua J, Gómez-Torres MJ. [Localization of Arylsulfatase A during in vitro incubation of human spermatozoa in capacitation media]. Rev Int Androl 2020; 19:129-136. [PMID: 33342716 DOI: 10.1016/j.androl.2020.08.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Revised: 05/19/2020] [Accepted: 08/08/2020] [Indexed: 10/22/2022]
Abstract
OBJECTIVE To determine the localization and distribution of the ArylsulfataseA receptor (ARSA) in human spermatozoa before and after their incubation in capacitation medium for 1 and 4hours. MATERIAL AND METHODS Semen samples were obtained from five normozoospermic donors. Capacitation was by swim-up technique using capacitation medium for 1 and 4hours. Localization of the ARSA receptor was assessed by indirect immunofluorescence using confocal microscopy. A minimum of 200cells were observed in each physiological condition. RESULTS Before incubation, no representative pattern was observed among the cells positive for this biomarker (8.61%). This percentage increased significantly after incubation in the capacitation medium for 1 and 4hours (61.86% and 63.38% respectively). A majority pattern was observed among the capacitated cells, with intense labelling in the acrosomal region (27.11% and 28.20% after 1 and 4hours respectively). It should be noted that the pattern corresponding to fluorescence at the level of the periacrosomal region was not observed in the spermatozoa prior to incubation. Only after incubation in capacitation medium for 1 and 4hours, 9.13% and 12.78% of cells with such distribution were detected. CONCLUSIONS In vitro capacitation, regardless of time, favours the immunolocalization of ARSA in the cephalic region of the spermatozoa. The most representative subpopulation after this process was the one in which ARSA was intensely and homogeneously distributed in the acrosome region, involved in primary gamete recognition.
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Affiliation(s)
| | | | - Laura Robles-Gómez
- Departamento de Biotecnología, Universidad de Alicante, Alicante, España
| | - Alejandro Romero
- Departamento de Biotecnología, Universidad de Alicante, Alicante, España
| | - Jon Aizpurua
- IVF Spain, Medicina Reproductiva, Alicante, España; Cátedra Human Fertility, Universidad de Alicante, Alicante, España
| | - María José Gómez-Torres
- Departamento de Biotecnología, Universidad de Alicante, Alicante, España; Cátedra Human Fertility, Universidad de Alicante, Alicante, España.
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Park YJ, Kwon KJ, Song WH, Pang WK, Ryu DY, Saidur Rahman M, Pang MG. New technique of sex preselection for increasing female ratio in boar sperm model. Reprod Domest Anim 2020; 56:333-341. [PMID: 33249659 DOI: 10.1111/rda.13870] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2020] [Accepted: 11/24/2020] [Indexed: 12/01/2022]
Abstract
In this study, we tried to optimize the porcine semen extender conditions to maximize the differences between live X chromosome-bearing (X) spermatozoa and to Y chromosome-bearing (Y) spermatozoa without a decline in the fertility rate at different pH conditions during storage. We observed the viability of X and Y boar spermatozoa in acidic (pH 6.2), original (pH 7.2), and alkaline condition (pH 8.2) for 5 days to investigate the effect of storage conditions on the X to Y spermatozoa ratio. The functional parameters of spermatozoa were also examined to evaluate sperm quality. Sperm motility was preserved at pH 7.2 and pH 6.2 for 3 days, while sperm motility at pH 8.2 decreased significantly after 2 days. Non-capacitated spermatozoa increased while capacitated spermatozoa decreased during storage. Sperm viability decreased significantly duration-dependent under all pH conditions, but there was no significant difference during storage at pH 6.2 and 7.2. The X: Y ratio of live spermatozoa in acidic condition was maximized (1.2:1) without affecting the sperm function and fertility-related protein expression after 2 days compared to original conditions. Moreover, insemination of sows using acidic extender increased the number of female pups on days 1 and 2 of preservation. These results indicate that the production of female offspring may increase when acidic BTS is used for 2 days without affecting the success rate of AI. Above all, this method is simple and economical compared to other methods.
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Affiliation(s)
- Yoo-Jin Park
- Department of Animal Science & Technology and BET Research Institute, Chung-Ang University, Anseong, Korea
| | - Ki-Jin Kwon
- Department of Animal Science & Technology and BET Research Institute, Chung-Ang University, Anseong, Korea
| | - Won-Hee Song
- Department of Animal Science & Technology and BET Research Institute, Chung-Ang University, Anseong, Korea
| | - Won-Ki Pang
- Department of Animal Science & Technology and BET Research Institute, Chung-Ang University, Anseong, Korea
| | - Do-Yeal Ryu
- Department of Animal Science & Technology and BET Research Institute, Chung-Ang University, Anseong, Korea
| | - Md Saidur Rahman
- Department of Animal Science & Technology and BET Research Institute, Chung-Ang University, Anseong, Korea
| | - Myung-Geol Pang
- Department of Animal Science & Technology and BET Research Institute, Chung-Ang University, Anseong, Korea
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53
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Sperm ion channels and transporters in male fertility and infertility. Nat Rev Urol 2020; 18:46-66. [PMID: 33214707 DOI: 10.1038/s41585-020-00390-9] [Citation(s) in RCA: 70] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/08/2020] [Indexed: 12/16/2022]
Abstract
Mammalian sperm cells must respond to cues originating from along the female reproductive tract and from the layers of the egg in order to complete their fertilization journey. Dynamic regulation of ion signalling is, therefore, essential for sperm cells to adapt to their constantly changing environment. Over the past 15 years, direct electrophysiological recordings together with genetically modified mouse models and human genetics have confirmed the importance of ion channels, including the principal Ca2+-selective plasma membrane ion channel CatSper, for sperm activity. Sperm ion channels and membrane receptors are attractive targets for both the development of contraceptives and infertility treatment drugs. Furthermore, in this era of assisted reproductive technologies, understanding the signalling processes implicated in defective sperm function, particularly those arising from genetic abnormalities, is of the utmost importance not only for the development of infertility treatments but also to assess the overall health of a patient and his children. Future studies to improve reproductive health care and overall health care as a function of the ability to reproduce should include identification and analyses of gene variants that underlie human infertility and research into fertility-related molecules.
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54
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Huerta-Retamal N, Sáez-Espinosa P, Robles-Gómez L, Avilés M, Romero A, Aizpurua J, Gómez-Torres MJ. Human sperm chaperone HSPA2 distribution during in vitro capacitation. J Reprod Immunol 2020; 143:103246. [PMID: 33246276 DOI: 10.1016/j.jri.2020.103246] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Revised: 09/28/2020] [Accepted: 11/05/2020] [Indexed: 11/30/2022]
Abstract
Human fertilization success depends on the ability of the spermatozoa to undergo capacitation. Even though this process can be conducted in vitro, the optimal time for a sperm cell to complete capacitation in vitro is still under discussion due to the lack of proper capacitation biomarkers. Here, we evaluated the influence of in vitro capacitation time on HSPA2 distribution over human sperm head testing this chaperone as a potential capacitation biomarker. The chaperone was assessed in human spermatozoa from 16 normozoospermic donors using indirect immunofluorescence in uncapacitated, one and four-hour capacitated spermatozoa. The percentage of HSPA2 immunofluorescent cells before and after one hour of capacitation did not differ significantly. However, after four hours of capacitation, we observed a significantly higher percentage of HSPA2 labelled cells. In fluorescent cells analysed before capacitation, we could not identify a predominant distribution pattern. Meanwhile, after capacitation, most sperm showed a highly labelled equatorial band accompanied by a homogeneous fluorescence throughout the acrosomal region. Our findings suggest that HSPA2 needs more than one hour of in vitro capacitation for being correctly distributed in the anterior region of the sperm head. In conclusion, the present study provides solid evidences for the utility of HSPA2 as a biomarker of human sperm in vitro capacitation. Due to its importance during egg-sperm recognition, the use of HSPA2 as a biomarker before an artificial reproduction technique may be suggested, in addition to a longer capacitation time during sperm preparation.
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Affiliation(s)
| | - Paula Sáez-Espinosa
- Departamento de Biotecnología, Universidad de Alicante, Alicante, 03690, Spain
| | - Laura Robles-Gómez
- Departamento de Biotecnología, Universidad de Alicante, Alicante, 03690, Spain
| | - Manuel Avilés
- Departamento de Biología celular e Histología, Universidad de Murcia, Instituto Murciano de Investigación Sociosanitaria (IMIB-Arrixaca), Murcia, 30003, Spain
| | - Alejandro Romero
- Departamento de Biotecnología, Universidad de Alicante, Alicante, 03690, Spain
| | - Jon Aizpurua
- IVF Spain, Medicina Reproductiva, Alicante, 03540, Spain; Cátedra Human Fertility, Universidad de Alicante, Alicante, Spain
| | - María José Gómez-Torres
- Departamento de Biotecnología, Universidad de Alicante, Alicante, 03690, Spain; Cátedra Human Fertility, Universidad de Alicante, Alicante, Spain.
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Oseguera-López I, Pérez-Cerezales S, Ortiz-Sánchez PB, Mondragon-Payne O, Sánchez-Sánchez R, Jiménez-Morales I, Fierro R, González-Márquez H. Perfluorooctane Sulfonate (PFOS) and Perfluorohexane Sulfonate (PFHxS) Alters Protein Phosphorylation, Increase ROS Levels and DNA Fragmentation during In Vitro Capacitation of Boar Spermatozoa. Animals (Basel) 2020; 10:ani10101934. [PMID: 33096732 PMCID: PMC7588980 DOI: 10.3390/ani10101934] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Accepted: 10/15/2020] [Indexed: 12/31/2022] Open
Abstract
Simple Summary Perfluorinated compounds are synthetic chemicals, with a wide variety of applications like firefighting foams, food packaging, additives in paper and fabrics to avoid dyes. Perfluorooctane sulfonate and perfluorohexane sulfonate are globally distributed, and contaminates air, water, food, and dust, have toxic effects and bioaccumulate. Significant levels of these compounds have found in blood serum, breast milk, and semen of occupationally exposed and unexposed people, as well as in blood serum and organs of the domestic, farm, and wild animals. The present study seeks to analyze the toxic effects and possible alterations caused by the presence of these compounds in boar sperm during the in vitro capacitation, due to their toxicity, worldwide distribution, and lack of information in spermatozoa physiology during pre-fertilization processes. Abstract Perfluorooctane sulfonate (PFOS) and perfluorohexane sulfonate (PFHxS) are toxic and bioaccumulative, included in the Stockholm Convention’s list as persistent organic pollutants. Due to their toxicity, worldwide distribution, and lack of information in spermatozoa physiology during pre-fertilization processes, the present study seeks to analyze the toxic effects and possible alterations caused by the presence of these compounds in boar sperm during the in vitro capacitation. The spermatozoa capacitation was performed in supplemented TALP-Hepes media and mean lethal concentration values of 460.55 μM for PFOS, and 1930.60 μM for PFHxS were obtained. Results by chlortetracycline staining showed that intracellular Ca2+ patterns bound to membrane proteins were scarcely affected by PFOS. The spontaneous acrosome reaction determined by FITC-PNA was significantly reduced by PFOS and slightly increased by PFHxS. Both toxic compounds significantly alter the normal capacitation process from 30 min of exposure. An increase in ROS production was observed by flow cytometry and considerable DNA fragmentation by the comet assay. The immunocytochemistry showed a decrease of tyrosine phosphorylation in proteins of the equatorial and acrosomal zone of the spermatozoa head. In conclusion, PFOS and PFHxS have toxic effects on the sperm, causing mortality and altering vital parameters for proper sperm capacitation.
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Affiliation(s)
- Iván Oseguera-López
- Doctorado en Ciencias Biológicas y de la Salud, Universidad Autónoma Metropolitana, Mexico City 09340, Mexico; (I.O.-L.); (P.B.O.-S.)
| | - Serafín Pérez-Cerezales
- Departamento de Reproducción Animal, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria, 28040 Madrid, Spain; (S.P.-C.); (R.S.-S.)
| | - Paola Berenice Ortiz-Sánchez
- Doctorado en Ciencias Biológicas y de la Salud, Universidad Autónoma Metropolitana, Mexico City 09340, Mexico; (I.O.-L.); (P.B.O.-S.)
| | - Oscar Mondragon-Payne
- Maestría en Biología Experimental, Universidad Autónoma Metropolitana, Mexico City 09340, Mexico;
| | - Raúl Sánchez-Sánchez
- Departamento de Reproducción Animal, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria, 28040 Madrid, Spain; (S.P.-C.); (R.S.-S.)
| | - Irma Jiménez-Morales
- Departamento de Ciencias de la Salud, Universidad Autónoma Metropolitana-Iztapalapa, Mexico City 09340, Mexico; (I.J.-M.); (R.F.)
| | - Reyna Fierro
- Departamento de Ciencias de la Salud, Universidad Autónoma Metropolitana-Iztapalapa, Mexico City 09340, Mexico; (I.J.-M.); (R.F.)
| | - Humberto González-Márquez
- Departamento de Ciencias de la Salud, Universidad Autónoma Metropolitana-Iztapalapa, Mexico City 09340, Mexico; (I.J.-M.); (R.F.)
- Correspondence: ; Tel.: +52-55-5804-6557
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56
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Phosphoproteomics and Bioinformatics Analyses Reveal Key Roles of GSK-3 and AKAP4 in Mouse Sperm Capacitation. Int J Mol Sci 2020; 21:ijms21197283. [PMID: 33023073 PMCID: PMC7582274 DOI: 10.3390/ijms21197283] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Revised: 09/27/2020] [Accepted: 09/28/2020] [Indexed: 12/14/2022] Open
Abstract
Protein phosphorylation can induce signal transduction to change sperm motility patterns during sperm capacitation. However, changes in the phosphorylation of sperm proteins in mice are still incompletely understood. Here, capacitation-related phosphorylation in mouse sperms were firstly investigated by label-free quantitative (LFQ) phosphoproteomics coupled with bioinformatics analysis using ingenuity pathway analysis (IPA) methods such as canonical pathway, upstream regulator, and network analysis. Among 1632 phosphopeptides identified at serine, threonine, and tyrosine residues, 1050 novel phosphosites, corresponding to 402 proteins, were reported. Gene heatmaps for IPA canonical pathways showed a novel role for GSK-3 in GP6 signaling pathways associated with capacitation for 60 min. At the same time, the reduction of the abundant isoform-specific GSK-3α expression was shown by western blot (WB) while the LFQ pY of this isoform slightly decreased and then increased. The combined results from WB and LFQ methods explain the less inhibitory phosphorylation of GSK-3α during capacitation and also support the predicted increases in its activity. In addition, pAKAP4 increased at the Y156 site but decreased at the Y811 site in a capacitated state, even though IPA network analysis and WB analysis for overall pAKAP revealed upregulated trends. The potential roles of GSK-3 and AKAP4 in fertility are discussed.
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57
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Sáez-Espinosa P, Ferrández-Rives M, Huerta-Retamal N, Robles-Gómez L, Aizpurua J, Romero A, Gómez-Torres MJ. Proper cytoskeleton α-tubulin distribution is concomitant to tyrosine phosphorylation during in vitro capacitation and acrosomal reaction in human spermatozoa. Cytoskeleton (Hoboken) 2020; 77:333-341. [PMID: 32875747 DOI: 10.1002/cm.21631] [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: 06/16/2020] [Revised: 08/20/2020] [Accepted: 08/28/2020] [Indexed: 11/06/2022]
Abstract
Spermatozoa motility is a key parameter during the fertilization process. In this context, spermatozoa tyrosine protein phosphorylation and an appropriate cytoskeleton α-tubulin distribution are some of the most important physiological events involved in motility. However, the relationship between these two biomarkers remains poorly defined. Here, we characterized simultaneously by immunocytochemistry the α-tubulin (TUBA4A) distribution and the tyrosine phosphorylation at flagellum before capacitation, during different capacitation times (1 and 4 hr), and after acrosome reaction induction in human spermatozoa. We found that the absence of spermatozoa phosphorylation in tyrosine residues positively and significantly correlated (p < 0.05) with the terminal piece α-tubulin flagellar distribution in all physiological conditions. Conversely, we observed a positive significant correlation (p < 0.01) between phosphorylated spermatozoa and continuous α-tubulin distribution in spermatozoa flagellum, independently of the physiological condition. Similarly, the subpopulation of spermatozoa with tyrosine phosphorylated and continuous α-tubulin increases with longer capacitation times and after the acrosome reaction induction. Overall, these findings provide novel insights into the post-transcriptional physiological events associated to α-tubulin and the tyrosine phosphorylation during fertilization, which present potential implications for the improvement of spermatozoa selection methods.
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Affiliation(s)
| | | | | | | | - Jon Aizpurua
- Reproductive Medicine, IVF Spain, Alicante, Spain
| | - Alejandro Romero
- Department of Biotechnology, University of Alicante, Alicante, Spain
| | - María José Gómez-Torres
- Department of Biotechnology, University of Alicante, Alicante, Spain.,Reproductive Medicine, IVF Spain, Alicante, Spain.,Cathedra of Human Fertility, University de Alicante, Alicante, Spain
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58
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Bunsueb S, Tangsrisakda N, Wu ATH, Iamsaard S. Localization (and profiles) of tyrosinephosphorylated proteins in female reproductive organs of adult rats. Clin Exp Reprod Med 2020; 47:180-185. [PMID: 32911588 PMCID: PMC7482952 DOI: 10.5653/cerm.2020.03573] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Accepted: 04/01/2020] [Indexed: 11/06/2022] Open
Abstract
Objective Tyrosine phosphorylation is an essential process in many biological systems, including the male reproductive system. The presence of tyrosine-phosphorylated (TyrPho) proteins has been well documented in male reproductive organs, but research in fertile females is still limited. Methods The ovary, oviduct, and uterus of adult female Sprague-Dawley rats in the estrus phase were used to localize TyrPho proteins using an immunohistochemical technique. These proteins were separated and their expression patterns were examined by sodium dodecyl sulfatepolyacrylamide gel electrophoresis and Western blot analysis, respectively. Results TyrPho proteins were localized in the cytoplasm of the oocyte except the antral fluid; in the granulosa cells, theca cells, and stromal cells of the ovary; at the apical surface of oviductal epithelial cells; and in the basal epithelium and submucosa of the uterine wall. Moreover, we found that 72-, 43-, and 28-kDa TyrPho proteins were localized in the ovary, while 170-, 55-, and 43-kDa proteins were localized in the oviduct. In the uterus, we detected four major bands, corresponding to 61-, 55-, 54-, and 43-kDa TyrPho proteins. Conclusion Given that these TyrPho proteins were found in major reproductive organs in the estrus phase, these proteins may play important roles in female fertility.
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Affiliation(s)
- Sudtida Bunsueb
- Department of Anatomy, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
| | - Nareelak Tangsrisakda
- Department of Anatomy, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand.,Research Institute for Human High Performance and Health Promotion (HHP & HP), Khon Kaen University, Khon Kaen, Thailand
| | - Alexander T H Wu
- PhD Program for Translational Medicine, College of Medical Science and Technology, Taipei Medical University and Academia Sinica, Taipei, Taiwan.,Graduate Institute of Medical Sciences, National Defense Medical Center, Taipei, Taiwan
| | - Sitthichai Iamsaard
- Department of Anatomy, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand.,Research Institute for Human High Performance and Health Promotion (HHP & HP), Khon Kaen University, Khon Kaen, Thailand
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Ogneva IV, Usik MA, Burtseva MV, Biryukov NS, Zhdankina YS, Sychev VN, Orlov OI. Drosophila melanogaster Sperm under Simulated Microgravity and a Hypomagnetic Field: Motility and Cell Respiration. Int J Mol Sci 2020; 21:ijms21175985. [PMID: 32825268 PMCID: PMC7503777 DOI: 10.3390/ijms21175985] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 08/11/2020] [Accepted: 08/18/2020] [Indexed: 01/25/2023] Open
Abstract
The role of the Earth's gravitational and magnetic fields in the evolution and maintenance of normal processes of various animal species remains unclear. The aim of this work was to determine the effect of simulated microgravity and hypomagnetic conditions for 1, 3, and 6 h on the sperm motility of the fruit fly Drosophila melanogaster. In addition to the usual diet, the groups were administered oral essential phospholipids at a dosage of 500 mg/kg in medium. The speed of the sperm tails was determined by video recording and analysis of the obtained video files, protein content by western blotting, and cell respiration by polarography. The results indicated an increase in the speed of movement of the sperm tails after 6 h in simulated microgravity. The levels of proteins that form the axoneme of the sperm tail did not change, but cellular respiration was altered. A similar effect occurred with the administration of essential phospholipids. These results may be due to a change in the level of phosphorylation of motor proteins. Exposure to hypomagnetic conditions led to a decrease in motility after 6 h against a background of a decrease in the rate of cellular respiration due to complex I of the respiratory chain. This effect was not observed in the flies that received essential phospholipids. However, after 1 h under hypomagnetic conditions, the rate of cellular respiration also increased due to complex I, including that in the sperm of flies receiving essential phospholipids.
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Affiliation(s)
- Irina V. Ogneva
- Cell Biophysics Laboratory, State Scientific Center of the Russian Federation Institute of Biomedical Problems of the Russian Academy of Sciences, 76a, Khoroshevskoyoe shosse, 123007 Moscow, Russia; (M.A.U.); (M.V.B.); (N.S.B.); (Y.S.Z.); (V.N.S.); (O.I.O.)
- Department of Medical and Biological Physics, I. M. Sechenov First Moscow State Medical University, 8-2 Trubetskaya St., 119991 Moscow, Russia
- Correspondence: ; Tel.: +7-4991956398; Fax: +7-4991952253
| | - Maria A. Usik
- Cell Biophysics Laboratory, State Scientific Center of the Russian Federation Institute of Biomedical Problems of the Russian Academy of Sciences, 76a, Khoroshevskoyoe shosse, 123007 Moscow, Russia; (M.A.U.); (M.V.B.); (N.S.B.); (Y.S.Z.); (V.N.S.); (O.I.O.)
- Department of Medical and Biological Physics, I. M. Sechenov First Moscow State Medical University, 8-2 Trubetskaya St., 119991 Moscow, Russia
| | - Maria V. Burtseva
- Cell Biophysics Laboratory, State Scientific Center of the Russian Federation Institute of Biomedical Problems of the Russian Academy of Sciences, 76a, Khoroshevskoyoe shosse, 123007 Moscow, Russia; (M.A.U.); (M.V.B.); (N.S.B.); (Y.S.Z.); (V.N.S.); (O.I.O.)
| | - Nikolay S. Biryukov
- Cell Biophysics Laboratory, State Scientific Center of the Russian Federation Institute of Biomedical Problems of the Russian Academy of Sciences, 76a, Khoroshevskoyoe shosse, 123007 Moscow, Russia; (M.A.U.); (M.V.B.); (N.S.B.); (Y.S.Z.); (V.N.S.); (O.I.O.)
- Department of Medical and Biological Physics, I. M. Sechenov First Moscow State Medical University, 8-2 Trubetskaya St., 119991 Moscow, Russia
| | - Yuliya S. Zhdankina
- Cell Biophysics Laboratory, State Scientific Center of the Russian Federation Institute of Biomedical Problems of the Russian Academy of Sciences, 76a, Khoroshevskoyoe shosse, 123007 Moscow, Russia; (M.A.U.); (M.V.B.); (N.S.B.); (Y.S.Z.); (V.N.S.); (O.I.O.)
- Department of Medical and Biological Physics, I. M. Sechenov First Moscow State Medical University, 8-2 Trubetskaya St., 119991 Moscow, Russia
| | - Vladimir N. Sychev
- Cell Biophysics Laboratory, State Scientific Center of the Russian Federation Institute of Biomedical Problems of the Russian Academy of Sciences, 76a, Khoroshevskoyoe shosse, 123007 Moscow, Russia; (M.A.U.); (M.V.B.); (N.S.B.); (Y.S.Z.); (V.N.S.); (O.I.O.)
| | - Oleg I. Orlov
- Cell Biophysics Laboratory, State Scientific Center of the Russian Federation Institute of Biomedical Problems of the Russian Academy of Sciences, 76a, Khoroshevskoyoe shosse, 123007 Moscow, Russia; (M.A.U.); (M.V.B.); (N.S.B.); (Y.S.Z.); (V.N.S.); (O.I.O.)
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Carrageta DF, Guerra-Carvalho B, Sousa M, Barros A, Oliveira PF, Monteiro MP, Alves MG. Mitochondrial Activation and Reactive Oxygen-Species Overproduction during Sperm Capacitation are Independent of Glucose Stimuli. Antioxidants (Basel) 2020; 9:antiox9080750. [PMID: 32823893 PMCID: PMC7464989 DOI: 10.3390/antiox9080750] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Revised: 08/06/2020] [Accepted: 08/11/2020] [Indexed: 12/14/2022] Open
Abstract
Spermatozoa capacitation is a complex process that requires specific ionic and energetic conditions to support biochemical alterations leading to motility hyperactivation. However, human sperm capacitation is still poorly understood. Herein, we studied the effects of glucose on human sperm capacitation. Healthy men seminal samples (n = 55) were submitted to a density gradient centrifugation and incubated in capacitating conditions in the absence or presence of increasing glucose concentrations (0, 5.5, 11, and 22 mM). Viability and total motility were accessed. Phosphotyrosine levels were measured. Mitochondrial activity and endogenous ROS production were evaluated. Oxidative stress-induced damage was analyzed. Culture media was collected and analyzed by 1H-NMR. Our results show that glucose is essential for human sperm capacitation and motility. Notably, we observed that mitochondrial activity increased even in the absence of glucose. This increased mitochondrial activity was followed by a ROS overproduction, although no oxidative stress-induced damage was detected. Our results show that glucose is essential for capacitation but mitochondrial activation is independent from its stimuli. ROS overproduction may take part on a finely regulated signaling pathway that modulates or even activates capacitation. Taken together, our results constitute a paradigm shift on human sperm capacitation physiology.
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Affiliation(s)
- David F. Carrageta
- Department of Microscopy, Laboratory of Cell Biology, Unit for Multidisciplinary Research in Biomedicine (UMIB), Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, 4050-313 Porto, Portugal; (D.F.C.); (B.G.-C.); (M.S.)
| | - Bárbara Guerra-Carvalho
- Department of Microscopy, Laboratory of Cell Biology, Unit for Multidisciplinary Research in Biomedicine (UMIB), Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, 4050-313 Porto, Portugal; (D.F.C.); (B.G.-C.); (M.S.)
| | - Mário Sousa
- Department of Microscopy, Laboratory of Cell Biology, Unit for Multidisciplinary Research in Biomedicine (UMIB), Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, 4050-313 Porto, Portugal; (D.F.C.); (B.G.-C.); (M.S.)
| | - Alberto Barros
- Centre for Reproductive Genetics Alberto Barros, 4100-012 Porto, Portugal;
- Department of Genetics, Faculty of Medicine, University of Porto, 4200-319 Porto, Portugal
- i3S—Instituto de Investigação e Inovação em Saúde, Universidade do Porto, 4200-135 Porto, Portugal
| | - Pedro F. Oliveira
- QOPNA & LAQV, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal;
| | - Mariana P. Monteiro
- Clinical and Experimental Endocrinology, Unit for Multidisciplinary Research in Biomedicine (UMIB), Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, 4050-313 Porto, Portugal;
| | - Marco G. Alves
- Department of Microscopy, Laboratory of Cell Biology, Unit for Multidisciplinary Research in Biomedicine (UMIB), Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, 4050-313 Porto, Portugal; (D.F.C.); (B.G.-C.); (M.S.)
- Correspondence: ; Tel.: +351-220-428-000
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Elango K, Kumaresan A, Sharma A, Nag P, Prakash MA, Sinha MK, Manimaran A, Peter ESKJ, Jeyakumar S, Selvaraju S, Ramesha KP, Datta TK. Sub-fertility in crossbred bulls: deciphering testicular level transcriptomic alterations between zebu (Bos indicus) and crossbred (Bos taurus x Bos indicus) bulls. BMC Genomics 2020; 21:502. [PMID: 32693775 PMCID: PMC7372791 DOI: 10.1186/s12864-020-06907-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2019] [Accepted: 07/10/2020] [Indexed: 01/10/2023] Open
Abstract
BACKGROUND The incidence of poor semen quality and sub-fertility/infertility is higher in crossbred as compared to Zebu males. Several attempts have been made to understand the possible reasons for higher incidence of fertility problems in crossbred males, at sperm phenotype, proteome and genome level but with variable results. Since the quality of the ejaculated spermatozoa is determined by the testicular environment, assessing the testicular transcriptome between these breeds would help in identifying the possible mechanisms associated with infertility in crossbred bulls. However, such information is not available. We performed global transcriptomic profiling of testicular tissue from crossbred and Zebu bulls using Agilent Bos taurus GXP 8X60k AMADID: 29411 array. To the best of our knowledge, this is the first study comparing the testicular mRNAs between crossbred and Zebu bulls. RESULTS Out of the 14,419 transcripts detected in bovine testis, 1466 were differentially expressed between crossbred and Zebu bulls, in which 1038 were upregulated and 428 were downregulated in crossbred bulls. PI4KB and DPY19L2 genes, reported to be involved in sperm capacitation and acrosome formation respectively, were among the top 10 downregulated transcripts in crossbred testis. Genes involved in ubiquitination and proteolysis were upregulated, while genes involved in cell proliferation, stem cell differentiation, stem cell population maintenance, steroidogenesis, WNT signalling, protein localization to plasma membrane, endocannabinoid signalling, heparin binding, cAMP metabolism and GABA receptor activity were downregulated in crossbred testis. Among the 10 genes validated using qPCR, expression of CCNYL, SOX2, MSMB, SPATA7, TNP1, TNP2 and CRISP2 followed the same trend as observed in microarray analysis with SPATA7 being significantly downregulated and transition proteins (TNP1, TNP2) being significantly upregulated in crossbred bulls. CONCLUSIONS Abundant proteolysis by ubiquitination and downregulation of WNT signaling, cell proliferation, differentiation and steroidogenesis might be associated with higher incidence of poor semen quality and/or sub-fertility/infertility in crossbred bulls as compared to Zebu bulls. Downregulation of SPATA7 (Spermatogenesis Associated 7) and upregulation of transition proteins (TNP1 and TNP2) in crossbred bull testis might be associated with impaired spermatogenesis processes including improper chromatin compaction in crossbred bulls.
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Affiliation(s)
- Kamaraj Elango
- Theriogenology Laboratory, Veterinary Gynaecology and Obstetrics, Southern Regional Station of ICAR- National Dairy Research Institute, Bengaluru, Karnataka, 560030, India
| | - Arumugam Kumaresan
- Theriogenology Laboratory, Veterinary Gynaecology and Obstetrics, Southern Regional Station of ICAR- National Dairy Research Institute, Bengaluru, Karnataka, 560030, India.
| | - Ankur Sharma
- Theriogenology Laboratory, Veterinary Gynaecology and Obstetrics, Southern Regional Station of ICAR- National Dairy Research Institute, Bengaluru, Karnataka, 560030, India
| | - Pradeep Nag
- Theriogenology Laboratory, Veterinary Gynaecology and Obstetrics, Southern Regional Station of ICAR- National Dairy Research Institute, Bengaluru, Karnataka, 560030, India
| | - Mani Arul Prakash
- Theriogenology Laboratory, Veterinary Gynaecology and Obstetrics, Southern Regional Station of ICAR- National Dairy Research Institute, Bengaluru, Karnataka, 560030, India
| | - Manish Kumar Sinha
- Theriogenology Laboratory, Veterinary Gynaecology and Obstetrics, Southern Regional Station of ICAR- National Dairy Research Institute, Bengaluru, Karnataka, 560030, India
| | - Ayyasamy Manimaran
- Southern Regional Station of ICAR- National Dairy Research Institute, Bengaluru, Karnataka, 560030, India
| | - Ebenezer Samuel King John Peter
- Theriogenology Laboratory, Veterinary Gynaecology and Obstetrics, Southern Regional Station of ICAR- National Dairy Research Institute, Bengaluru, Karnataka, 560030, India
| | - Sakthivel Jeyakumar
- Southern Regional Station of ICAR- National Dairy Research Institute, Bengaluru, Karnataka, 560030, India
| | - Sellappan Selvaraju
- Reproductive physiology Laboratory, ICAR - National Institute of Animal Nutrition and Physiology, Bengaluru, Karnataka, 560030, India
| | - Kerekoppa P Ramesha
- Southern Regional Station of ICAR- National Dairy Research Institute, Bengaluru, Karnataka, 560030, India
| | - Tirtha K Datta
- Animal Genomics Laboratory, ICAR - National Dairy Research Institute, Karnal, Haryana, 132 001, India
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Cheng YM, Hu XN, Peng Z, Pan TT, Wang F, Chen HY, Chen WQ, Zhang Y, Zeng XH, Luo T. Lysine glutarylation in human sperm is associated with progressive motility. Hum Reprod 2020; 34:1186-1194. [PMID: 31194865 DOI: 10.1093/humrep/dez068] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2019] [Revised: 04/14/2019] [Indexed: 11/14/2022] Open
Abstract
STUDY QUESTION Is there a role for lysine glutarylation (Kglu), a newly identified protein post-translational modification (PTM), in human sperm? SUMMARY ANSWER Kglu occurs in several proteins located in the tail of human sperm, and it was reduced in asthenozoospermic (A) men and positively correlated with progressive motility of human sperm, indicating its important role in maintaining sperm motility. WHAT IS KNOWN ALREADY Since mature sperm are almost transcriptionally silent, PTM is regarded as an important pathway in regulating sperm function. However, only phosphorylation has been extensively studied in mature sperm to date. Protein lysine modification (PLM), a hot spot of PTMs, was rarely studied except for a few reports on lysine methylation and acetylation. As a newly identified PLM, Kglu has not been well characterized, especially in mature sperm. STUDY DESIGN, SIZE, DURATION Sperm samples were obtained from normozoospermic (N) men and A men who visited the reproductive medical center between February 2016 and January 2018. In total, 61 N men and 59 A men were recruited to participate in the study. PARTICIPANTS/MATERIALS, SETTING, METHODS Kglu was examined by immunoblotting and immunofluorescence assays using a previously qualified pan-anti-glutaryllysine antibody that recognizes glutaryllysine in a wide range of sequence contexts (both in histones and non-histone substrates) but not the structurally similar malonyllysine and succinyllysine. The immunofluorescence assay was imaged using laser scanning confocal microscopy and super-resolution structured illumination microscopy. Sperm motility parameters were examined by computer-assisted sperm analysis. MAIN RESULTS AND THE ROLE OF CHANCE Kglu occurs in several proteins (20-150 kDa) located in the tail of human sperm, especially in the middle piece and the latter part of the principal piece. Sperm Kglu was modulated by regulatory systems (enzymes and glutaryl-CoA) similar to those in HeLa cells. The mean level of sperm Kglu was significantly reduced in A men compared with N men (P < 0.001) and was positively correlated with progressive motility (P < 0.001). The sodium glutarate-induced elevation of Kglu levels in A men with lower Kglu levels in sperm significantly improved the progressive motility (P < 0.001). Furthermore, the reduced sperm Kglu levels in A men was accompanied by an increase in sperm glutaryl-CoA dehydrogenase (a regulatory enzyme of Kglu). LARGE SCALE DATA N/A. LIMITATIONS, REASONS FOR CAUTION Although the present study indicated the involvement of sperm Kglu in maintaining progressive motility of human sperm, the underlying mechanism needs to be investigated further. WIDER IMPLICATIONS OF THE FINDINGS The findings of this study provide an insight into the novel role of Kglu in human sperm and suggest that abnormality of sperm PLMs may be one of the causes of asthenozoospermia. STUDY FUNDING/COMPETING INTEREST(S) National Natural Science Foundation of China (81 771 644 to T.L.; 31 671 204 to X.Z. and 81 871 207 to H.C.); National Basic Research Program of China (973 Program, 2015CB943003 to X.Z.); Natural Science Foundation of Jiangxi, China (20171ACB21006 and 20161BAB204167 to T.L.; 20165BCB18001 to X.Z.). The authors have no conflicts of interest to declare.
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Affiliation(s)
- Yi-Min Cheng
- Institute of Life Science and School of Life Science, Nanchang University, Nanchang, Jiangxi, China
| | - Xiao-Nian Hu
- Institute of Life Science and School of Life Science, Nanchang University, Nanchang, Jiangxi, China
| | - Zhen Peng
- Institute of Life Science and School of Life Science, Nanchang University, Nanchang, Jiangxi, China.,Jiangxi Medical College of Nanchang University, Nanchang University, Nanchang, Jiangxi, China
| | - Ting-Ting Pan
- Institute of Life Science and School of Life Science, Nanchang University, Nanchang, Jiangxi, China.,Jiangxi Medical College of Nanchang University, Nanchang University, Nanchang, Jiangxi, China
| | - Fang Wang
- Institute of Life Science and School of Life Science, Nanchang University, Nanchang, Jiangxi, China.,Jiangxi Medical College of Nanchang University, Nanchang University, Nanchang, Jiangxi, China
| | - Hou-Yang Chen
- Reproductive Medical Center, Jiangxi Provincial Maternal and Child Health Hospital, Nanchang, Jiangxi, China
| | - Wen-Qiong Chen
- Institute of Life Science and School of Life Science, Nanchang University, Nanchang, Jiangxi, China
| | - Yu Zhang
- Institute of Life Science and School of Life Science, Nanchang University, Nanchang, Jiangxi, China
| | - Xu-Hui Zeng
- Institute of Life Science and School of Life Science, Nanchang University, Nanchang, Jiangxi, China.,Key Laboratory of Reproductive Physiology and Pathology in Jiangxi Province, Nanchang, Jiangxi, China.,Jiangxi Medical College of Nanchang University, Nanchang University, Nanchang, Jiangxi, China
| | - Tao Luo
- Institute of Life Science and School of Life Science, Nanchang University, Nanchang, Jiangxi, China.,Key Laboratory of Reproductive Physiology and Pathology in Jiangxi Province, Nanchang, Jiangxi, China.,Jiangxi Medical College of Nanchang University, Nanchang University, Nanchang, Jiangxi, China
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Patil SK, Somashekar L, Selvaraju S, Jamuna KV, Parthipan S, Binsila BK, Prasad RV, Ravindra JP. Immuno-histological mapping and functional association of seminal proteins in testis and excurrent ducts with sperm function in buffalo. Reprod Domest Anim 2020; 55:998-1010. [PMID: 32515513 DOI: 10.1111/rda.13742] [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: 04/13/2020] [Revised: 05/03/2020] [Accepted: 06/01/2020] [Indexed: 12/15/2022]
Abstract
The region-specific expression of seminal proteins in testis and excurrent duct system determines the quality and function of the spermatozoa. In the present study, localization and expression of some of the seminal proteins such as insulin-like growth factor receptor 1β (IGF-1Rβ), phosphatidylethanolamine-binding protein 4 (PEBP4), α-tubulin and tissue factor pathway inhibitor 2 (TFPI2) were carried out in testis, excurrent duct system and spermatozoa of buffalo. IGF-1Rβ was localized in the cells of the seminiferous tubules of the testis, except in primary spermatocytes. The PEBP4 was localized only in the elongated spermatid, whereas α-tubulin and TFPI2 proteins were localized in all cells of the seminiferous tubule including spermatocyte. In the buffalo spermatozoa, IGF-1Rβ, PEBP4, α-tubulin and TFPI2 were localized in the acrosome region, the post-acrosomal region till the tail end, post-acrosome to the entire tail region and the equatorial region, respectively. The study indicates that IGF-1R, α-tubulin and PEBP4 proteins regulate spermatogenesis, whereas TFPI2 may be involved during the zona binding process of the buffalo spermatozoa.
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Affiliation(s)
- Sunil Kumar Patil
- Reproductive Physiology Laboratory, Animal Physiology Division, ICAR-National Institute of Animal Nutrition and Physiology, Bengaluru, India.,Department of Veterinary Anatomy and Histology, Veterinary College, KVAFSU, Bengaluru, India
| | - Lakshminarayana Somashekar
- Reproductive Physiology Laboratory, Animal Physiology Division, ICAR-National Institute of Animal Nutrition and Physiology, Bengaluru, India
| | - Sellappan Selvaraju
- Reproductive Physiology Laboratory, Animal Physiology Division, ICAR-National Institute of Animal Nutrition and Physiology, Bengaluru, India
| | - Kolatalu V Jamuna
- Department of Veterinary Anatomy and Histology, Veterinary College, KVAFSU, Bengaluru, India
| | - Shivashanmugam Parthipan
- Reproductive Physiology Laboratory, Animal Physiology Division, ICAR-National Institute of Animal Nutrition and Physiology, Bengaluru, India
| | - Bala Krishnan Binsila
- Reproductive Physiology Laboratory, Animal Physiology Division, ICAR-National Institute of Animal Nutrition and Physiology, Bengaluru, India
| | | | - Janivara Parameshwaraiah Ravindra
- Reproductive Physiology Laboratory, Animal Physiology Division, ICAR-National Institute of Animal Nutrition and Physiology, Bengaluru, India
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Khasin LG, Della Rosa J, Petersen N, Moeller J, Kriegsfeld LJ, Lishko PV. The Impact of Di-2-Ethylhexyl Phthalate on Sperm Fertility. Front Cell Dev Biol 2020; 8:426. [PMID: 32695775 PMCID: PMC7338605 DOI: 10.3389/fcell.2020.00426] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Accepted: 05/07/2020] [Indexed: 01/26/2023] Open
Abstract
A growing number of studies point to reduced fertility upon chronic exposure to endocrine-disrupting chemicals (EDCs) such as phthalates and plasticizers. These toxins are ubiquitous and are often found in food and beverage containers, medical devices, as well as in common household and personal care items. Animal studies with EDCs, such as phthalates and bisphenol A have shown a dose-dependent decrease in fertility and embryo toxicity upon chronic exposure. However, limited research has been conducted on the acute effects of these EDCs on male fertility. Here we used a murine model to test the acute effects of four ubiquitous environmental toxins: bisphenol A (BPA), di-2-ethylhexyl phthalate (DEHP), diethyl phthalate (DEP), and dimethyl phthalate (DMP) on sperm fertilizing ability and pre-implantation embryo development. The most potent of these toxins, di-2-ethylhexyl phthalate (DEHP), was further evaluated for its effect on sperm ion channel activity, capacitation status, acrosome reaction and generation of reactive oxygen species (ROS). DEHP demonstrated a profound hazardous effect on sperm fertility by producing an altered capacitation profile, impairing the acrosome reaction, and, interestingly, also increasing ROS production. These results indicate that in addition to its known chronic impact on reproductive potential, DEHP also imposes acute and profound damage to spermatozoa, and thus, represents a significant risk to male fertility.
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Affiliation(s)
- Liliya Gabelev Khasin
- Department of Molecular & Cell Biology, University of California, Berkeley, Berkeley, CA, United States
| | - John Della Rosa
- Department of Molecular & Cell Biology, University of California, Berkeley, Berkeley, CA, United States
- Department of Chemistry, University of California, Berkeley, Berkeley, CA, United States
| | - Natalie Petersen
- Department of Molecular & Cell Biology, University of California, Berkeley, Berkeley, CA, United States
| | - Jacob Moeller
- Graduate Group in Endocrinology, University of California, Berkeley, Berkeley, CA, United States
| | - Lance J. Kriegsfeld
- Graduate Group in Endocrinology, University of California, Berkeley, Berkeley, CA, United States
- Department of Integrative Biology, University of California, Berkeley, Berkeley, CA, United States
- Department of Psychology, University of California, Berkeley, Berkeley, CA, United States
- Helen Wills Neuroscience Institute, University of California, Berkeley, Berkeley, CA, United States
| | - Polina V. Lishko
- Department of Molecular & Cell Biology, University of California, Berkeley, Berkeley, CA, United States
- Graduate Group in Endocrinology, University of California, Berkeley, Berkeley, CA, United States
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65
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Park YJ, Rahman MS, Pang WK, Ryu DY, Kim B, Pang MG. Bisphenol A affects the maturation and fertilization competence of spermatozoa. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 196:110512. [PMID: 32244115 DOI: 10.1016/j.ecoenv.2020.110512] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Revised: 03/16/2020] [Accepted: 03/17/2020] [Indexed: 06/11/2023]
Abstract
Although there are numerous studies on bisphenol A (BPA) on the testis and spermatozoa, the effect of BPA on the physiological link between the testis and maturation of spermatozoa has not been studied. To provide an optimal environment (acidic pH) for sperm maturation in the epididymis, clear cells secrete protons and principal cells reabsorb bicarbonate and the secreted proton. Because of its crucial role in sperm maturation and fertility, functional changes in the epididymis following BPA exposure must be considered to fully understand the mechanisms of BPA on male fertility. Here, we identified the adverse effects of BPA exposure during puberty in male mice. CD-1 male mice were gavaged daily with vehicle (corn oil) and 50 mg BPA/kg-BW for 6 weeks. We determined the changes in epididymis, functional sperm parameters including motility, capacitation status, tyrosine phosphorylation, and fertility-related protein expression and in vitro and in vivo fertility rate following BPA exposure. Expression of vacuolar-type H + -ATPase is necessary for the secretion of protons by clear cells of the caput epididymis and was directly down-regulated following BPA exposure, while there were no changes in the other epithelial cell types in the epididymis. Also, pERK 1/2 signaling pathway was increased significantly in the caput epididymis following BPA exposure. Consequently, the luminal pH slightly increased, resulting in premature capacitation of spermatozoa. Moreover, there was a significant loss of the acrosomal membrane following an increase of protein tyrosine phosphorylation, while PKA activity decreased during sperm capacitation. Fertility-related proteins also showed aberrant expression upon BPA exposure. These modifications resulted in decreased male fertility in vitro and in vivo.
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Affiliation(s)
- Yoo-Jin Park
- Department of Animal Science & Technology and BET Research Institute, Chgroung-Ang University, Anseong, Gyeonggi-do, 17546, Republic of Korea
| | - Md Saidur Rahman
- Department of Animal Science & Technology and BET Research Institute, Chgroung-Ang University, Anseong, Gyeonggi-do, 17546, Republic of Korea
| | - Won-Ki Pang
- Department of Animal Science & Technology and BET Research Institute, Chgroung-Ang University, Anseong, Gyeonggi-do, 17546, Republic of Korea
| | - Do-Yeal Ryu
- Department of Animal Science & Technology and BET Research Institute, Chgroung-Ang University, Anseong, Gyeonggi-do, 17546, Republic of Korea
| | - Bongki Kim
- Department of Animal Resources Science, Kongju National University, Yesan, Chungnam-do, 32439, Republic of Korea
| | - Myung-Geol Pang
- Department of Animal Science & Technology and BET Research Institute, Chgroung-Ang University, Anseong, Gyeonggi-do, 17546, Republic of Korea.
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Řimnáčová H, Štiavnická M, Moravec J, Chemek M, Kolinko Y, García-Álvarez O, Mouton PR, Trejo AMC, Fenclová T, Eretová N, Hošek P, Klein P, Králíčková M, Petr J, Nevoral J. Low doses of Bisphenol S affect post-translational modifications of sperm proteins in male mice. Reprod Biol Endocrinol 2020; 18:56. [PMID: 32466766 PMCID: PMC7254721 DOI: 10.1186/s12958-020-00596-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/27/2020] [Accepted: 04/22/2020] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Bisphenol S (BPS) is increasingly used as a replacement for bisphenol A in the manufacture of products containing polycarbonates and epoxy resins. However, further studies of BPS exposure are needed for the assessment of health risks to humans. In this study we assessed the potential harmfulness of low-dose BPS on reproduction in male mice. METHODS To simulate human exposure under experimental conditions, 8-week-old outbred ICR male mice received 8 weeks of drinking water containing a broad range of BPS doses [0.001, 1.0, or 100 μg/kg body weight (bw)/day, BPS1-3] or vehicle control. Mice were sacrificed and testicular tissue taken for histological analysis and protein identification by nano-liquid chromatography/mass spectrometry (MS) and sperm collected for immunodetection of acetylated lysine and phosphorylated tyrosine followed by protein characterisation using matrix-assisted laser desorption ionisation time-of-flight MS (MALDI-TOF MS). RESULTS The results indicate that compared to vehicle, 100 μg/kg/day exposure (BPS3) leads to 1) significant histopathology in testicular tissue; and, 2) higher levels of the histone protein γH2AX, a reliable marker of DNA damage. There were fewer mature spermatozoa in the germ layer in the experimental group treated with 1 μg/kg bw (BPS2). Finally, western blot and MALDI-TOF MS studies showed significant alterations in the sperm acetylome and phosphorylome in mice treated with the lowest exposure (0.001 μg/kg/day; BPS1), although the dose is several times lower than what has been published so far. CONCLUSIONS In summary, this range of qualitative and quantitative findings in young male mice raise the possibility that very low doses of BPS may impair mammalian reproduction through epigenetic modifications of sperm proteins.
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Affiliation(s)
- Hedvika Řimnáčová
- Biomedical Center in Pilsen, Faculty of Medicine in Pilsen, Charles University, alej Svobody 1655/76, Pilsen, Czech Republic.
| | - Miriam Štiavnická
- Biomedical Center in Pilsen, Faculty of Medicine in Pilsen, Charles University, alej Svobody 1655/76, Pilsen, Czech Republic
| | - Jiří Moravec
- Biomedical Center in Pilsen, Faculty of Medicine in Pilsen, Charles University, alej Svobody 1655/76, Pilsen, Czech Republic
| | - Marouane Chemek
- Biomedical Center in Pilsen, Faculty of Medicine in Pilsen, Charles University, alej Svobody 1655/76, Pilsen, Czech Republic
- LR11ES41: Génétique, Biodiversité et Valorisation des Bioressources, Institut de Biotechnologie, Université de Monastir, 5000, Monastir, Tunisia
| | - Yaroslav Kolinko
- Biomedical Center in Pilsen, Faculty of Medicine in Pilsen, Charles University, alej Svobody 1655/76, Pilsen, Czech Republic
- Department of Histology and Embryology, Faculty of Medicine in Pilsen, Charles University, Pilsen, Czech Republic
| | - Olga García-Álvarez
- Biomedical Center in Pilsen, Faculty of Medicine in Pilsen, Charles University, alej Svobody 1655/76, Pilsen, Czech Republic
- SaBio IREC (CSIC-UCLM- JCCM), Albacete, Spain
| | - Peter R Mouton
- SRC Biosciences & University of South Florida, Tampa, FL, USA
| | - Azalia Mariel Carranza Trejo
- Biomedical Center in Pilsen, Faculty of Medicine in Pilsen, Charles University, alej Svobody 1655/76, Pilsen, Czech Republic
| | - Tereza Fenclová
- Biomedical Center in Pilsen, Faculty of Medicine in Pilsen, Charles University, alej Svobody 1655/76, Pilsen, Czech Republic
| | - Nikola Eretová
- Biomedical Center in Pilsen, Faculty of Medicine in Pilsen, Charles University, alej Svobody 1655/76, Pilsen, Czech Republic
| | - Petr Hošek
- Biomedical Center in Pilsen, Faculty of Medicine in Pilsen, Charles University, alej Svobody 1655/76, Pilsen, Czech Republic
| | - Pavel Klein
- Biomedical Center in Pilsen, Faculty of Medicine in Pilsen, Charles University, alej Svobody 1655/76, Pilsen, Czech Republic
| | - Milena Králíčková
- Biomedical Center in Pilsen, Faculty of Medicine in Pilsen, Charles University, alej Svobody 1655/76, Pilsen, Czech Republic
- Department of Histology and Embryology, Faculty of Medicine in Pilsen, Charles University, Pilsen, Czech Republic
| | - Jaroslav Petr
- Institute of Animal Science, 10-Uhrineves, Prague, Czech Republic
| | - Jan Nevoral
- Biomedical Center in Pilsen, Faculty of Medicine in Pilsen, Charles University, alej Svobody 1655/76, Pilsen, Czech Republic
- Department of Histology and Embryology, Faculty of Medicine in Pilsen, Charles University, Pilsen, Czech Republic
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Sharma A, Thaventhiran T, Minhas S, Dhillo WS, Jayasena CN. Kisspeptin and Testicular Function-Is it Necessary? Int J Mol Sci 2020; 21:ijms21082958. [PMID: 32331420 PMCID: PMC7216047 DOI: 10.3390/ijms21082958] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Revised: 04/17/2020] [Accepted: 04/21/2020] [Indexed: 01/05/2023] Open
Abstract
The role of kisspeptin in stimulating hypothalamic GnRH is undisputed. However, the role of kisspeptin signaling in testicular function is less clear. The testes are essential for male reproduction through their functions of spermatogenesis and steroidogenesis. Our review focused on the current literature investigating the distribution, regulation and effects of kisspeptin and its receptor (KISS1/KISS1R) within the testes of species studied to date. There is substantial evidence of localised KISS1/KISS1R expression and peptide distribution in the testes. However, variability is observed in the testicular cell types expressing KISS1/KISS1R. Evidence is presented for modulation of steroidogenesis and sperm function by kisspeptin signaling. However, the physiological importance of such effects, and whether these are paracrine or endocrine manifestations, remain unclear.
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Affiliation(s)
- Aditi Sharma
- Section of Investigative Medicine, Imperial College, 6th Floor, Commonwealth Building, Hammersmith Hospital, 150 Du Cane Road, London W12 0NN, UK; (A.S.); (T.T.); (W.S.D.)
| | - Thilipan Thaventhiran
- Section of Investigative Medicine, Imperial College, 6th Floor, Commonwealth Building, Hammersmith Hospital, 150 Du Cane Road, London W12 0NN, UK; (A.S.); (T.T.); (W.S.D.)
| | - Suks Minhas
- Department of Urology, Imperial College Healthcare NHS Trust, Charing Cross Hospital, Fulham Palace Road, Hammersmith, London W6 8RF, UK;
| | - Waljit S. Dhillo
- Section of Investigative Medicine, Imperial College, 6th Floor, Commonwealth Building, Hammersmith Hospital, 150 Du Cane Road, London W12 0NN, UK; (A.S.); (T.T.); (W.S.D.)
| | - Channa N. Jayasena
- Section of Investigative Medicine, Imperial College, 6th Floor, Commonwealth Building, Hammersmith Hospital, 150 Du Cane Road, London W12 0NN, UK; (A.S.); (T.T.); (W.S.D.)
- Correspondence:
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Cheng YM, Peng Z, Chen HY, Pan TT, Hu XN, Wang F, Luo T. Posttranslational lysine 2-hydroxyisobutyrylation of human sperm tail proteins affects motility. Hum Reprod 2020; 35:494-503. [PMID: 32142584 DOI: 10.1093/humrep/dez296] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Revised: 10/26/2019] [Indexed: 12/15/2022] Open
Abstract
STUDY QUESTION Does lysine 2-hydroxyisobutyrylation, a newly identified protein posttranslational modification (PTM), occur in human sperm and affect human sperm function? SUMMARY ANSWER Lysine 2-hydroxyisobutyrylation mainly occurs in human sperm tail proteins, and excessive lysine 2-hydroxyisobutyrylation affects human sperm motility. WHAT IS KNOWN ALREADY PTM is regarded as an important pathway in regulating sperm function since mature sperm are almost transcriptionally silent. However, only phosphorylation was extensively studied in mature sperm to date. Lysine 2-hydroxyisobutyrylation, a newly characterised PTM, is broadly conserved in both eukaryotic and prokaryotic cells. Although histone lysine 2-hydroxyisobutyrylation has been shown to be associated with active gene expression in spermatogenic cells, the presence, regulatory elements and function of lysine 2-hydroxyisobutyrylation have not been characterised in mature sperm. STUDY DESIGN, SIZE, DURATION Sperm samples were obtained from normozoospermic men and asthenozoospermic men who visited the reproductive medical centre at Jiangxi Provincial Maternal and Child Health Hospital, Nanchang, Jiangxi, China, between May 2017 and November 2018. In total, 58 normozoospermic men and 65 asthenozoospermic men were recruited to participate in this study. PARTICIPANTS/MATERIALS, SETTING, METHODS Lysine 2-hydroxyisobutyrylation was examined using immunoblotting and immunofluorescence assays using a previously qualified pan anti-lysine 2-hydroxyisobutyrylation antibody. The immunofluorescence assay was imaged using super-resolution structured illumination microscopy. Sperm viability was examined by using the eosin staining method, and sperm motility parameters were assessed by computer-assisted sperm analysis. Sperm penetration ability was determined by evaluating the ability of the sperm to penetrate a 1% (w/v) methylcellulose solution. The level of intracellular adenosine triphosphate (ATP) was detected using a rapid bioluminescent ATP assay kit. MAIN RESULTS AND THE ROLE OF CHANCE Lysine 2-hydroxyisobutyrylation was present in several proteins (20-100 kDa) mainly located in the tail of human sperm. Sperm lysine 2-hydroxyisobutyrylation was derived from 2-hydroxyisobutyrate (2-Hib) and was regulated by acyltransferase P300 and nicotinamide adenine dinucleotide-dependent lysine deacylase sirtuins. Elevation of sperm lysine 2-hydroxyisobutyrylation by 2-Hib decreased total motility, progressive motility, penetration ability and ATP level of human sperm. Interestingly, the level of sperm lysine 2-hydroxyisobutyrylation was higher in asthenozoospermic men than that in normozoospermic men and was negatively correlated with the progressive motility of human sperm. Furthermore, high levels of lysine 2-hydroxyisobutyrylation in asthenozoospermic men accompanied decreased ATP levels. LIMITATIONS, REASONS FOR CAUTION Although the present study indicated the involvement of sperm lysine 2-hydroxyisobutyrylation in regulating human sperm motility, the underlying mechanism needs to be further illustrated. WIDER IMPLICATIONS OF THE FINDINGS The findings of this study provide insight into the novel role of lysine 2-hydroxyisobutyrylation in human sperm and suggest that abnormality of sperm lysine 2-hydroxyisobutyrylation may be one of the causes for asthenozoospermia. STUDY FUNDING/COMPETING INTEREST(S) National Natural Science Foundation of China (81771644 to T.L. and 81871207 to H.C.); Natural Science Foundation of Jiangxi province (20171ACB21006). The authors have no conflicts of interest to declare.
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Affiliation(s)
- Yi-Min Cheng
- Institute of Life Science and School of Life Science, Nanchang University, Nanchang, Jiangxi 330031, PR China
| | - Zhen Peng
- Institute of Life Science and School of Life Science, Nanchang University, Nanchang, Jiangxi 330031, PR China.,Department of Pharmacy, the First People's Hospital of Yichun City in Jiangxi Province, Yichun 336000, China
| | - Hou-Yang Chen
- Reproductive Medical Center, Jiangxi Provincial Maternal and Child Health Hospital, Nanchang 330006, PR China
| | - Ting-Ting Pan
- Institute of Life Science and School of Life Science, Nanchang University, Nanchang, Jiangxi 330031, PR China
| | - Xiao-Nian Hu
- Institute of Life Science and School of Life Science, Nanchang University, Nanchang, Jiangxi 330031, PR China
| | - Fang Wang
- Institute of Life Science and School of Life Science, Nanchang University, Nanchang, Jiangxi 330031, PR China
| | - Tao Luo
- Institute of Life Science and School of Life Science, Nanchang University, Nanchang, Jiangxi 330031, PR China
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69
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Wu H, Gao J, Wang X, Leung TY, Duan YG, Chiu PCN. Platelet-activating factor induces acrosome reaction via the activation of extracellular signal-regulated kinase in human spermatozoa. Andrologia 2020; 52:e13565. [PMID: 32187723 DOI: 10.1111/and.13565] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Revised: 01/08/2020] [Accepted: 02/03/2020] [Indexed: 11/30/2022] Open
Abstract
Platelet-activating factor (PAF) affects capacitation, acrosome reaction and fertilisation potential of spermatozoa. This study investigated the underlying mechanism(s) through which PAF regulated sperm function. Our data demonstrated that PAF dose-dependently induced, whilst lyso-PAF (PAF precursor) showed no effect on acrosome reaction of capacitated human spermatozoa. Treatment with PAF for 90 min enhanced tyrosine phosphorylation and expression of extracellular signal-regulated protein kinases (ERK) 1 and 2 in human spermatozoa. Moreover, pre-treatment with the ERK inhibitor U0126 significantly and dose-dependently suppressed PAF-induced acrosome reaction. Therefore, PAF may be actively involved in the modulation of sperm acrosome reaction by interacting with ERK. The role of PAF in fertilisation warrants further investigation.
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Affiliation(s)
- Haitao Wu
- Clinic of Reproductive Medicine, Jiangmen Central Hospital, Jiangmen, China
| | - Jing Gao
- Center of Assisted Reproduction and Embryology, The University of Hong Kong-Shenzhen Hospital, Shenzhen, China
| | - Xia Wang
- Department of Obstetrics and Gynaecology, Queen Mary Hospital, The University of Hong Kong, Pokfulam, Hong Kong Special Administrative Region, China.,Center of Reproductive Medicine, Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing, China
| | - Tsz Ying Leung
- Department of Obstetrics and Gynaecology, Queen Mary Hospital, The University of Hong Kong, Pokfulam, Hong Kong Special Administrative Region, China
| | - Yong-Gang Duan
- Shenzhen Key Laboratory of Fertility Regulation, Department of Obstetrics and Gynecology, The University of Hong Kong-Shenzhen Hospital, Shenzhen, China
| | - Philip C N Chiu
- Department of Obstetrics and Gynaecology, Queen Mary Hospital, The University of Hong Kong, Pokfulam, Hong Kong Special Administrative Region, China.,Shenzhen Key Laboratory of Fertility Regulation, Department of Obstetrics and Gynecology, The University of Hong Kong-Shenzhen Hospital, Shenzhen, China
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70
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Rossi M, Gonzalez-Castro R, Falomo ME. Effect of Caffeine and Pentoxifylline Added Before or After Cooling on Sperm Characteristics of Stallion Sperm. J Equine Vet Sci 2020; 87:102902. [PMID: 32172905 DOI: 10.1016/j.jevs.2019.102902] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Revised: 12/18/2019] [Accepted: 12/20/2019] [Indexed: 11/25/2022]
Abstract
Different additives have been tested in cooled stallion sperm, in order to maintain sperm quality and to ameliorate the decrease in sperm fertility potential. In several species, caffeine and pentoxifylline promote sperm motility by increasing energy production. We evaluate the effects of caffeine and pentoxifylline when added to stallion sperm before or after cooling. Three ejaculates from five stallions each were processed and resuspended in skim milk extender. Caffeine (5 mM), pentoxifylline (3.5 mM), or both additives combined were included to sperm before or after cooling (4°C for 24 hours). Cooled sperm were incubated at 37°C and evaluated at 0, 30, 60, and 120 minutes for motility, morphology, viability (flow cytometry), and membrane functionality (hypo-osmotic swelling test). Results were analyzed by two-factor mixed model for repeated measures and Tukey comparisons. As main effects, the caffeine and pentoxifylline affected significantly motility and kinematic parameters, without interaction between treatment and incubation after cooling. No differences were observed whether the additives were added prior or after cooling. Pentoxifylline added after cooling reduced significantly motility during incubation, but with higher values at 30 minutes. We detected a decrease in morphologically normal sperm (P < .0001), caused by an increase of tail defects (P < .003) in the presence of both additives. Viability and membrane functionality were also significantly impaired by additives. Pentoxifylline when added after cooling improved sperm motility and kinematic parameters for a short period of time. However, sperm characteristic related to fertility potential was compromised after a prolonged exposure to caffeine or pentoxifylline.
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Affiliation(s)
- Melissa Rossi
- Department of Animal Medicine, Production and Health (MAPS), Università di Padova, Legnaro (PD), Italy.
| | - Raul Gonzalez-Castro
- Equine Reproduction Laboratory, Colorado State University, Fort Collins, CO, USA
| | - Maria Elena Falomo
- Department of Animal Medicine, Production and Health (MAPS), Università di Padova, Legnaro (PD), Italy
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71
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Crapster JA, Rack PG, Hellmann ZJ, Le AD, Adams CM, Leib RD, Elias JE, Perrino J, Behr B, Li Y, Lin J, Zeng H, Chen JK. HIPK4 is essential for murine spermiogenesis. eLife 2020; 9:e50209. [PMID: 32163033 PMCID: PMC7067585 DOI: 10.7554/elife.50209] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2019] [Accepted: 02/23/2020] [Indexed: 12/19/2022] Open
Abstract
Mammalian spermiogenesis is a remarkable cellular transformation, during which round spermatids elongate into chromatin-condensed spermatozoa. The signaling pathways that coordinate this process are not well understood, and we demonstrate here that homeodomain-interacting protein kinase 4 (HIPK4) is essential for spermiogenesis and male fertility in mice. HIPK4 is predominantly expressed in round and early elongating spermatids, and Hipk4 knockout males are sterile, exhibiting phenotypes consistent with oligoasthenoteratozoospermia. Hipk4 mutant sperm have reduced oocyte binding and are incompetent for in vitro fertilization, but they can still produce viable offspring via intracytoplasmic sperm injection. Optical and electron microscopy of HIPK4-null male germ cells reveals defects in the filamentous actin (F-actin)-scaffolded acroplaxome during spermatid elongation and abnormal head morphologies in mature spermatozoa. We further observe that HIPK4 overexpression induces branched F-actin structures in cultured fibroblasts and that HIPK4 deficiency alters the subcellular distribution of an F-actin capping protein in the testis, supporting a role for this kinase in cytoskeleton remodeling. Our findings establish HIPK4 as an essential regulator of sperm head shaping and potential target for male contraception.
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Affiliation(s)
- J Aaron Crapster
- Department of Chemical and Systems Biology, Stanford University School of MedicineStanfordUnited States
| | - Paul G Rack
- Department of Chemical and Systems Biology, Stanford University School of MedicineStanfordUnited States
| | - Zane J Hellmann
- Department of Chemical and Systems Biology, Stanford University School of MedicineStanfordUnited States
| | - Austen D Le
- Department of Chemical and Systems Biology, Stanford University School of MedicineStanfordUnited States
| | - Christopher M Adams
- Stanford University Mass Spectrometry, Stanford UniversityStanfordUnited States
| | - Ryan D Leib
- Stanford University Mass Spectrometry, Stanford UniversityStanfordUnited States
| | - Joshua E Elias
- Chan Zuckerberg Biohub, Stanford UniversityStanfordUnited States
| | - John Perrino
- Cell Science Imaging Facility, Stanford University School of MedicineStanfordUnited States
| | - Barry Behr
- Department of Obstetrics and Gynecology, Reproductive Endocrinology and Infertility, Stanford University School of MedicineStanfordUnited States
| | - Yanfeng Li
- Transgenic, Knockout, and Tumor Model Center, Stanford University School of MedicineStanfordUnited States
| | - Jennifer Lin
- Transgenic, Knockout, and Tumor Model Center, Stanford University School of MedicineStanfordUnited States
| | - Hong Zeng
- Transgenic, Knockout, and Tumor Model Center, Stanford University School of MedicineStanfordUnited States
| | - James K Chen
- Department of Chemical and Systems Biology, Stanford University School of MedicineStanfordUnited States
- Department of Developmental Biology, Stanford University School of MedicineStanfordUnited States
- Department of Chemistry, Stanford UniversityStanfordUnited States
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72
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Luo T, Wang F, Weng S, Chen H, Kang H, Wang J, Luo S. Anethole compromises human sperm function by affecting the sperm intracellular calcium concentration and tyrosine phosphorylation. Reprod Toxicol 2020; 93:99-105. [PMID: 32004625 DOI: 10.1016/j.reprotox.2020.01.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2019] [Revised: 01/12/2020] [Accepted: 01/24/2020] [Indexed: 11/28/2022]
Abstract
Anethole is a natural anisole derivative that has been widely used in food and daily chemical industries, agricultural applications and the traditional medicine. It is closely related to aspects of daily life, and humans can easily be exposed to it. Although the reproductive toxicity of anethole was shown in the rat, its effect on human reproduction remains unknown. In this study, we examined the effect of anethole on human sperm in vitro. Different anethole doses (0.1, 1, 10, and 100 μM) were applied to ejaculated human sperm. Fertilization-essential functions, as well as the intracellular calcium concentration ([Ca2+]i) and tyrosine phosphorylation, two vital factors for regulating sperm function, were measured. The results indicated that 10 and 100 μM anethole significantly reduced the motility, hyperactivation, and penetration ability of human sperm (P < 0.05) and inhibited the increase in human sperm functions induced by progesterone, a hormone essential for sperm function activation. Additionally, 10 and 100 μM anethole decreased both basal and progesterone-increased tyrosine phosphorylation, [Ca2+]i, and the current of CATSPER, a cation channel of sperm predominant for Ca2+ influx. These results suggest that anethole inhibits human sperm functions by reducing sperm [Ca2+]i through CATSPER and suppressing tyrosine phosphorylation in vitro, raising the fact that the caution is needed when overtaking anethole.
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Affiliation(s)
- Tao Luo
- Institute of Life Science and School of Life Science, Nanchang University, Nanchang, Jiangxi, 330031, PR China
| | - Fang Wang
- Institute of Life Science and School of Life Science, Nanchang University, Nanchang, Jiangxi, 330031, PR China
| | - Shiqi Weng
- Department of Horticulture, College of Agronomy, Jiangxi Agricultural University, Nanchang, 330045, PR China
| | - Houyang Chen
- Reproductive Medical Center, Jiangxi Maternal and Child Health Hospital, Nanchang, Jiangxi 330006, PR China
| | - Hang Kang
- Institute of Life Science and School of Life Science, Nanchang University, Nanchang, Jiangxi, 330031, PR China
| | - Jie Wang
- Department of Horticulture, College of Agronomy, Jiangxi Agricultural University, Nanchang, 330045, PR China
| | - Sha Luo
- Department of Horticulture, College of Agronomy, Jiangxi Agricultural University, Nanchang, 330045, PR China.
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73
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Kinetic Model of the Action of 17α-Ethynylestradiol on the Capacitation of Mouse Sperm, Monitored by HPLC-MS/MS. Catalysts 2020. [DOI: 10.3390/catal10010124] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
17α-Ethynylestradiol (EE2), a synthetic estrogen used in contraceptive pills, is resistant to hepatic degradation and is excreted in the urine. It is chemically stable and has a negative impact on the endocrine system. The aim of this work was to mathematically describe the possible interaction of EE2 (200, 20, and 2 μg/L) with sperm estrogen receptors during sperm maturation, which is called capacitation. The concentrations of the unbound EE2 remaining in capacitating medium during 180 min of sperm capacitation were determined at 30 min intervals by high performance liquid chromatography with tandem mass spectrometric detection (HPLC-MS/MS) and the data obtained (relative concentrations Bt) were subjected to kinetic analysis. The suggested kinetic schema was described by the system of differential equations with the optimization of rate constants used to calculate the theoretical Bt values. Optimal parameters (overall rate constants K1–K5 and molar ratio n) were determined by searching the minimum of absolute values of the difference between theoretical and experimental Bt values. These values were used for the design of the theoretical B(t) curves which fit to experimental points. The proposed kinetic model assumes the formation of an unstable adduct between EE2 and the receptor in cytoplasm, which acts as an autocatalytic agent and gradually decomposes.
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74
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Rahman MS, Kang KH, Arifuzzaman S, Pang WK, Ryu DY, Song WH, Park YJ, Pang MG. Effect of antioxidants on BPA-induced stress on sperm function in a mouse model. Sci Rep 2019; 9:10584. [PMID: 31332285 PMCID: PMC6646364 DOI: 10.1038/s41598-019-47158-9] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Accepted: 07/11/2019] [Indexed: 11/09/2022] Open
Abstract
In the past few years, bisphenol A, (BPA) an endocrine-disrupting chemical, has received increasing attention because of its detrimental health effects. There is ample evidence to support that BPA interferes with the reproductive health of humans and animals. In spermatozoa, BPA-induced adverse effects are mostly caused by increased oxidative stress. Using an in vitro experimental model, we examined whether antioxidants (glutathione, vitamin C, and vitamin E) have defensive effects against BPA-induced stress in spermatozoa. The results showed that antioxidants inhibit the overproduction of reactive oxygen species (basically cellular peroxides) and increase intracellular ATP levels, thereby preventing motility loss and abnormal acrosome reaction in BPA-exposed spermatozoa. In particular, glutathione and vitamin E reduced the protein kinase A-dependent tyrosine phosphorylation in spermatozoa and, thus, prevented the precocious acrosome reaction from occurring. Furthermore, we found that the compromised fertilisation and early embryo development mediated by BPA-exposed spermatozoa can be improved following their supplementation with glutathione and vitamin E. Based on these findings, we suggest that antioxidants reduce oxidative stress in BPA-exposed spermatozoa, thus preventing detrimental effects on their function and fertility.
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Affiliation(s)
- Md Saidur Rahman
- Department of Animal Science & Technology and BET Research Institute, Chung-Ang University, Anseong, Gyeonggi-do, 456-756, Republic of Korea
| | - Kyu-Ho Kang
- Department of Animal Science & Technology and BET Research Institute, Chung-Ang University, Anseong, Gyeonggi-do, 456-756, Republic of Korea
| | - Sarder Arifuzzaman
- Department of Animal Science & Technology and BET Research Institute, Chung-Ang University, Anseong, Gyeonggi-do, 456-756, Republic of Korea
| | - Won-Ki Pang
- Department of Animal Science & Technology and BET Research Institute, Chung-Ang University, Anseong, Gyeonggi-do, 456-756, Republic of Korea
| | - Do-Yeal Ryu
- Department of Animal Science & Technology and BET Research Institute, Chung-Ang University, Anseong, Gyeonggi-do, 456-756, Republic of Korea
| | - Won-Hee Song
- Department of Animal Science & Technology and BET Research Institute, Chung-Ang University, Anseong, Gyeonggi-do, 456-756, Republic of Korea
| | - Yoo-Jin Park
- Department of Animal Science & Technology and BET Research Institute, Chung-Ang University, Anseong, Gyeonggi-do, 456-756, Republic of Korea
| | - Myung-Geol Pang
- Department of Animal Science & Technology and BET Research Institute, Chung-Ang University, Anseong, Gyeonggi-do, 456-756, Republic of Korea.
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75
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Tongpan S, Sukhorum W, Arun S, Sawatphanich T, Iamsaard S. Valproic acid changes the expression of tyrosine‐phosphorylated proteins in rat seminal vesicle. Andrologia 2019; 51:e13303. [DOI: 10.1111/and.13303] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Revised: 03/22/2019] [Accepted: 04/03/2019] [Indexed: 01/09/2023] Open
Affiliation(s)
- Saranya Tongpan
- Department of Anatomy, Faculty of Medicine Khon Kaen University Khon Kaen Thailand
| | | | - Supatcharee Arun
- Department of Anatomy, Faculty of Medicine Khon Kaen University Khon Kaen Thailand
| | - Tarinee Sawatphanich
- Department of Anatomy, Faculty of Medicine Khon Kaen University Khon Kaen Thailand
| | - Sitthichai Iamsaard
- Department of Anatomy, Faculty of Medicine Khon Kaen University Khon Kaen Thailand
- Center for Research and Development of Herbal Health Products, Faculty of Pharmaceutical Sciences Khon Kaen University Khon Kaen Thailand
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76
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Urizar-Arenaza I, Osinalde N, Akimov V, Puglia M, Candenas L, Pinto FM, Muñoa-Hoyos I, Gianzo M, Matorras R, Irazusta J, Blagoev B, Subiran N, Kratchmarova I. Phosphoproteomic and Functional Analyses Reveal Sperm-specific Protein Changes Downstream of Kappa Opioid Receptor in Human Spermatozoa. Mol Cell Proteomics 2019; 18:S118-S131. [PMID: 30622161 PMCID: PMC6427232 DOI: 10.1074/mcp.ra118.001133] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2018] [Revised: 12/27/2018] [Indexed: 12/11/2022] Open
Abstract
G-protein coupled receptors (GPCRs) belong to the seven transmembrane receptor superfamily that transduce signals via G proteins in response to external stimuli to initiate different intracellular signaling pathways which culminate in specific cellular responses. The expression of diverse GPCRs at the plasma membrane of human spermatozoa suggests their involvement in the regulation of sperm fertility. However, the signaling events downstream of many GPCRs in spermatozoa remain uncharacterized. Here, we selected the kappa-opioid receptor (KOR) as a study model and applied phosphoproteomic approach based on TMT labeling and LC-MS/MS analyses. Quantitative coverage of more than 5000 proteins with over 3500 phosphorylation sites revealed changes in the phosphorylation levels of sperm-specific proteins involved in the regulation of the sperm fertility in response to a specific agonist of KOR, U50488H. Further functional studies indicate that KOR could be involved in the regulation of sperm fertile capacity by modulation of calcium channels. Our findings suggest that human spermatozoa possess unique features in the molecular mechanisms downstream of GPCRs which could be key regulators of sperm fertility and improved knowledge of these specific processes may contribute to the development of useful biochemical tools for diagnosis and treatment of male infertility.
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Affiliation(s)
- Itziar Urizar-Arenaza
- From the ‡Department of Physiology, Faculty of Medicine and Nursing, University of the Basque Country (UPV/EHU), Leioa, Bizkaia, Spain, 49840;; Biocruces Bizkaia Health Research Institute, Barakaldo, Bizkaia, Spain, 48903
| | - Nerea Osinalde
- Department of Biochemistry and Molecular Biology, Faculty of Pharmacy, University of the Basque Country (UPV/EHU), Vitoria-Gasteiz, Araba, Spain, 01006
| | - Vyacheslav Akimov
- Department of Biochemistry and Molecular Biology, University of Southern Denmark, Odense, Denmark, 5320
| | - Michele Puglia
- Department of Biochemistry and Molecular Biology, University of Southern Denmark, Odense, Denmark, 5320
| | - Luz Candenas
- Instituto de Investigaciones Químicas, CSIC, Sevilla, Spain, 41092
| | | | - Iraia Muñoa-Hoyos
- From the ‡Department of Physiology, Faculty of Medicine and Nursing, University of the Basque Country (UPV/EHU), Leioa, Bizkaia, Spain, 49840;; Biocruces Bizkaia Health Research Institute, Barakaldo, Bizkaia, Spain, 48903
| | - Marta Gianzo
- From the ‡Department of Physiology, Faculty of Medicine and Nursing, University of the Basque Country (UPV/EHU), Leioa, Bizkaia, Spain, 49840;; Biocruces Bizkaia Health Research Institute, Barakaldo, Bizkaia, Spain, 48903
| | - Roberto Matorras
- Biocruces Bizkaia Health Research Institute, Barakaldo, Bizkaia, Spain, 48903
| | - Jon Irazusta
- From the ‡Department of Physiology, Faculty of Medicine and Nursing, University of the Basque Country (UPV/EHU), Leioa, Bizkaia, Spain, 49840
| | - Blagoy Blagoev
- Department of Biochemistry and Molecular Biology, University of Southern Denmark, Odense, Denmark, 5320
| | - Nerea Subiran
- From the ‡Department of Physiology, Faculty of Medicine and Nursing, University of the Basque Country (UPV/EHU), Leioa, Bizkaia, Spain, 49840;; Biocruces Bizkaia Health Research Institute, Barakaldo, Bizkaia, Spain, 48903;.
| | - Irina Kratchmarova
- Department of Biochemistry and Molecular Biology, University of Southern Denmark, Odense, Denmark, 5320;.
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Katte TV, Rajyalakshmi M, Aladakatti RH. Assessment of azadirachtin-A, a neem tetranortritarpinoid, on rat spermatozoa during in vitro capacitation. J Basic Clin Physiol Pharmacol 2019; 29:679-687. [PMID: 29729147 DOI: 10.1515/jbcpp-2017-0014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2017] [Accepted: 03/27/2018] [Indexed: 11/15/2022]
Abstract
BACKGROUND The exploration of the biological assessment of technical azadirachtin, a tetranortritarpinoid from the neem seed kernel, was reviewed. The present study was, therefore, designed to evaluate the dose-dependent in vitro effects of azadirachtin-A, particularly on the functional studies and determination of molecular events, which are critical in the process of sperm capacitation. METHODS To assess the effects of the azadirachtin-A on the functional studies, sperm capacitation, the total sperm adenosine triphosphate levels, acrosome reaction (AR), the sperm-egg interaction and the determination of molecular events like cyclic adenosine-3',5'-monophosphate and calcium levels, the appropriate volumes of the sperm suspension were added to the medium to a final concentration of 1×106 sperm/mL and incubated in a humidified atmosphere of 5% CO2 in air at 37°C. The increasing quantities 0.5-2.0 mM/mL and the equivalent volumes of 50% dimethyl sulfoxide were added to the control dishes prior to the addition of spermatozoa and then observed at various time-points for motility and other analyses. RESULTS Results revealed the dose- and time-dependent decrease in the functional consequence of capacitation, i.e. the percentage of motile spermatozoa, motility score and sperm motility index, levels of molecular events in spermatozoa, followed by declined spontaneous AR leading to lesser binding of the cauda epididymal sperm to the Zona pellucida. CONCLUSIONS The findings confirm the inhibition of rat sperm motility by blocking some biochemical pathways like energy utilization. They also demonstrate that sperm capacitation is associated with the decrease in AR and that the levels of molecular events in spermatozoa can guide us towards the development of a new male contraceptive constituent.
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Affiliation(s)
- Teesta V Katte
- Department of Biotechnology, BMS College of Engineering, Bengaluru 560004, Karnataka, India, Phone: +91-080-26622130
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Darbandi M, Darbandi S, Agarwal A, Baskaran S, Dutta S, Sengupta P, Khorram Khorshid HR, Esteves S, Gilany K, Hedayati M, Nobakht F, Akhondi MM, Lakpour N, Sadeghi MR. Reactive oxygen species-induced alterations in H19-Igf2 methylation patterns, seminal plasma metabolites, and semen quality. J Assist Reprod Genet 2019; 36:241-253. [PMID: 30382470 PMCID: PMC6420547 DOI: 10.1007/s10815-018-1350-y] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2018] [Accepted: 10/17/2018] [Indexed: 12/28/2022] Open
Abstract
PURPOSE This study was conducted in order to investigate the effects of reactive oxygen species (ROS) levels on the seminal plasma (SP) metabolite milieu and sperm dysfunction. METHODS Semen specimens of 151 normozoospermic men were analyzed for ROS by chemiluminescence and classified according to seminal ROS levels [in relative light units (RLU)/s/106 sperm]: group 1 (n = 39): low (ROS < 20), group 2 (n = 38): mild (20 ≤ ROS < 40), group 3 (n = 31): moderate (40 ≤ ROS < 60), and group 4 (n = 43): high (ROS ≥ 60). A comprehensive analysis of SP and semen parameters, including conventional semen characteristics, measurement of total antioxidant capacity (TAC), sperm DNA fragmentation index (DFI), chromatin maturation index (CMI), H19-Igf2 methylation status, and untargeted seminal metabolic profiling using nuclear magnetic resonance spectroscopy (1H-NMR), was carried out. RESULT(S) The methylation status of H19 and Igf2 was significantly different in specimens with high ROS (P < 0.005). Metabolic fingerprinting of these SP samples showed upregulation of trimethylamine N-oxide (P < 0.001) and downregulations of tryptophan (P < 0.05) and tyrosine/tyrosol (P < 0.01). High ROS significantly reduced total sperm motility (P < 0.05), sperm concentration (P < 0.001), and seminal TAC (P < 0.001) but increased CMI and DFI (P < 0.005). ROS levels have a positive correlation with Igf2 methylation (r = 0.19, P < 0.05), DFI (r = 0.40, P < 0.001), CMI (r = 0.39, P < 0.001), and trimethylamine N-oxide (r = 0.45, P < 0.05) and a negative correlation with H19 methylation (r = - 0.20, P < 0.05), tryptophan (r = - 0.45, P < 0.05), sperm motility (r = - 0.20, P < 0.05), sperm viability (r = - 0.23, P < 0.01), and sperm concentration (r = - 0.30, P < 0.001). CONCLUSION(S) Results showed significant correlation between ROS levels and H19-Igf2 gene methylation as well as semen parameters. These findings are critical to identify idiopathic male infertility and its management through assisted reproduction technology (ART).
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Affiliation(s)
- Mahsa Darbandi
- Department of Embryology and Andrology, Reproductive Biotechnology Research Center, Avicenna Research Institute, ACECR, Tehran, 1936773493, Iran
| | - Sara Darbandi
- Department of Embryology and Andrology, Reproductive Biotechnology Research Center, Avicenna Research Institute, ACECR, Tehran, 1936773493, Iran
| | - Ashok Agarwal
- American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH, 44195, USA
| | - Saradha Baskaran
- American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH, 44195, USA
| | - Sulagna Dutta
- Faculty of Dentistry, MAHSA University, 42610, Selangor, Malaysia
| | - Pallav Sengupta
- Department of Physiology, Faculty of Medicine, MAHSA University, 42610, Selangor, Malaysia
| | - Hamid Reza Khorram Khorshid
- Genetics Research Center, University of Social Welfare and Rehabilitation Sciences, Tehran, 1985713834, Iran
| | - Sandro Esteves
- ANDROFERT, Andrology and Human Reproduction Clinic, Campinas, 13075-460, Brazil
| | - Kambiz Gilany
- Department of Embryology and Andrology, Reproductive Biotechnology Research Center, Avicenna Research Institute, ACECR, Tehran, 1936773493, Iran
| | - Mehdi Hedayati
- Molecular Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University for Medical Sciences, Tehran, 1985717413, Iran
| | - Fatemeh Nobakht
- Department of Basic Medical Sciences, Neyshabur University of Medical Sciences, Nishabur, 9314634814, Iran
| | - Mohammad Mehdi Akhondi
- Monoclonal Antibody Research Center, Avicenna Research Institute (ARI), ACECR, Shahid Beheshti University, Evin, Tehran, 1936773493, Iran
| | - Niknam Lakpour
- Department of Embryology and Andrology, Reproductive Biotechnology Research Center, Avicenna Research Institute, ACECR, Tehran, 1936773493, Iran
| | - Mohammad Reza Sadeghi
- Monoclonal Antibody Research Center, Avicenna Research Institute (ARI), ACECR, Shahid Beheshti University, Evin, Tehran, 1936773493, Iran.
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Bosakova T, Tockstein A, Sebkova N, Simonik O, Adamusova H, Albrechtova J, Albrecht T, Bosakova Z, Dvorakova-Hortova K. New Insight into Sperm Capacitation: A Novel Mechanism of 17β-Estradiol Signalling. Int J Mol Sci 2018; 19:ijms19124011. [PMID: 30545117 PMCID: PMC6321110 DOI: 10.3390/ijms19124011] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Revised: 12/07/2018] [Accepted: 12/08/2018] [Indexed: 12/20/2022] Open
Abstract
17β-estradiol (estradiol) is a natural estrogen regulating reproduction including sperm and egg development, sperm maturation—called capacitation—and sperm–egg communication. High doses can increase germ cell apoptosis and decrease sperm count. Our aim was to answer the biological relevance of estradiol in sperm capacitation and its effect on motility and acrosome reaction to quantify its interaction with estrogen receptors and propose a model of estradiol action during capacitation using kinetic analysis. Estradiol increased protein tyrosine phosphorylation, elevated rate of spontaneous acrosome reaction, and altered motility parameters measured Hamilton-Thorne Computer Assisted Semen Analyzer (CASA) in capacitating sperm. To monitor time and concentration dependent binding dynamics of extracellular estradiol, high-performance liquid chromatography with tandem mass spectrometry was used to measure sperm response and data was subjected to kinetic analysis. The kinetic model of estradiol action during sperm maturation shows that estradiol adsorption onto a plasma membrane surface is controlled by Langmuir isotherm. After, when estradiol passes into the cytoplasm, it forms an unstable adduct with cytoplasmic receptors, which display a signalling autocatalytic pattern. This autocatalytic reaction suggests crosstalk between receptor and non-receptor pathways utilized by sperm prior to fertilization.
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Affiliation(s)
- Tereza Bosakova
- Department of Analytical Chemistry, Faculty of Science, Charles University, Albertov 2030, 128 43 Prague, Czech Republic.
| | - Antonin Tockstein
- Department of Analytical Chemistry, Faculty of Science, Charles University, Albertov 2030, 128 43 Prague, Czech Republic.
| | - Natasa Sebkova
- Laboratory of Reproductive Biology, Institute of Biotechnology CAS, v.v.i., BIOCEV, Prumyslova 595, 252 50 Vestec, Czech Republic.
| | - Ondrej Simonik
- Laboratory of Reproductive Biology, Institute of Biotechnology CAS, v.v.i., BIOCEV, Prumyslova 595, 252 50 Vestec, Czech Republic.
- Department of Veterinary Sciences, Faculty of Agrobiology, Food and Natural Resources Czech University of Life Sciences Prague, Kamycka 129, 165 00 Prague, Czech Republic.
| | - Hana Adamusova
- Department of Analytical Chemistry, Faculty of Science, Charles University, Albertov 2030, 128 43 Prague, Czech Republic.
| | - Jana Albrechtova
- Department of Zoology, Faculty of Science, Charles University, Vinicna 7, 128 44 Prague, Czech Republic.
- Institute of Vertebrate Biology, v.v.i., Czech Academy of Sciences, Kvetna 8, 603 65 Brno, Czech Republic.
| | - Tomas Albrecht
- Department of Zoology, Faculty of Science, Charles University, Vinicna 7, 128 44 Prague, Czech Republic.
- Institute of Vertebrate Biology, v.v.i., Czech Academy of Sciences, Kvetna 8, 603 65 Brno, Czech Republic.
| | - Zuzana Bosakova
- Department of Analytical Chemistry, Faculty of Science, Charles University, Albertov 2030, 128 43 Prague, Czech Republic.
| | - Katerina Dvorakova-Hortova
- Laboratory of Reproductive Biology, Institute of Biotechnology CAS, v.v.i., BIOCEV, Prumyslova 595, 252 50 Vestec, Czech Republic.
- Department of Zoology, Faculty of Science, Charles University, Vinicna 7, 128 44 Prague, Czech Republic.
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80
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Arroyo-Salvo C, Sanhueza F, Fuentes F, Treulén F, Arias ME, Cabrera P, Silva M, Felmer R. Effect of human tubal fluid medium and hyperactivation inducers on stallion sperm capacitation and hyperactivation. Reprod Domest Anim 2018; 54:184-194. [DOI: 10.1111/rda.13328] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2018] [Accepted: 08/22/2018] [Indexed: 12/30/2022]
Affiliation(s)
- Camila Arroyo-Salvo
- Laboratory of Reproduction, Centre of Reproductive Biotechnology (CEBIOR-BIOREN); Universidad de La Frontera; Temuco Chile
| | - Francisco Sanhueza
- Laboratory of Reproduction, Centre of Reproductive Biotechnology (CEBIOR-BIOREN); Universidad de La Frontera; Temuco Chile
| | - Fernanda Fuentes
- Laboratory of Reproduction, Centre of Reproductive Biotechnology (CEBIOR-BIOREN); Universidad de La Frontera; Temuco Chile
| | - Favián Treulén
- Laboratory of Reproduction, Centre of Reproductive Biotechnology (CEBIOR-BIOREN); Universidad de La Frontera; Temuco Chile
- School of Medical Technology, Faculty of Sciences; Universidad Mayor; Temuco Chile
| | - María Elena Arias
- Laboratory of Reproduction, Centre of Reproductive Biotechnology (CEBIOR-BIOREN); Universidad de La Frontera; Temuco Chile
- Department of Animal Production, Faculty of Agriculture and Forestry Sciences; Universidad de La Frontera; Temuco Chile
| | - Paulina Cabrera
- Laboratory of Reproduction, Centre of Reproductive Biotechnology (CEBIOR-BIOREN); Universidad de La Frontera; Temuco Chile
| | - Mauricio Silva
- Department of Veterinary Sciences and Public Health; Universidad Católica de Temuco; Temuco Chile
| | - Ricardo Felmer
- Laboratory of Reproduction, Centre of Reproductive Biotechnology (CEBIOR-BIOREN); Universidad de La Frontera; Temuco Chile
- Department of Agricultural Sciences and Natural Resources, Faculty of Agriculture and Forestry Sciences; Universidad de La Frontera; Temuco Chile
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81
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Effect of endocrine disruptors on the ratio of X and Y chromosome-bearing live spermatozoa. Reprod Toxicol 2018; 82:10-17. [PMID: 30219569 DOI: 10.1016/j.reprotox.2018.09.002] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2018] [Revised: 06/07/2018] [Accepted: 09/06/2018] [Indexed: 02/06/2023]
Abstract
Although equal numbers of X and Y spermatozoa are produced during spermatogenesis, the sex chromosome ratio in ejaculated spermatozoa can be altered by exposure to endocrine-disrupting chemicals (EDCs), which can be reflected by altered sex ratios at birth. Here, we hypothesized EDCs affect sperm functions and viability of X and Y chromosome-bearing human spermatozoa. After exposure to genistein (Gen), bisphenol A (BPA), 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD), dibromochloropropane (DBCP), and diazinon (Diaz), we evaluated motility, viability, capacitation, and differential viability of X and Y spermatozoa. All EDCs tested altered sperm viability, motility, and capacitation. Interestingly, the Y/X ratio of live spermatozoa was significantly lower in sperm treated with TCDD, DBCP, and Diaz than control spermatozoa. Our results suggest that some of EDCs have larger effects on the viability of Y spermatozoa than X spermatozoa, implicating that a reduction in Y sperm viability may result in a female-biased sex ratio of offspring at birth.
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82
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Kumaresan A, Johannisson A, Bergqvist AS. Sperm function during incubation with oestrus oviductal fluid differs in bulls with different fertility. Reprod Fertil Dev 2018; 29:1096-1106. [PMID: 27112984 DOI: 10.1071/rd15474] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2015] [Accepted: 03/01/2016] [Indexed: 12/11/2022] Open
Abstract
Spermatozoa undergo several modifications in the oviduct before acquiring fertilising capacity. Although spermatozoa are exposed to similar conditions in the oviduct, the speed of the response varies with the male and the state of the spermatozoa. We hypothesised that spermatozoa from bulls with different fertility may differ in their ability to respond to oviductal fluid (ODF). Frozen-thawed spermatozoa from four bulls were incubated with oestrus oviductal fluid (OODF) for 6h. Sperm kinematics, tyrosine phosphorylation, phosphorylation patterns, capacitation and acrosome reaction were analysed at hourly intervals. The amplitude of lateral head displacement (ALH) and straightness coefficient (STR) were higher (P<0.05) in bulls with higher fertility compared with those with lower fertility, at 1-4h of incubation. At 4h of incubation and onwards, spermatozoa from bulls with higher fertility showed a lower degree (P<0.05) of tyrosine phosphorylation and higher degree of capacitation and acrosome reaction. At least five tyrosine-phosphorylated sperm proteins were detected in all bulls. However, the expression of two phosphorylated sperm proteins (183 and 109 kDa) was upregulated in bulls with lower fertility. It may be concluded that cryopreserved spermatozoa from high- and low- fertile bulls differ in their ability to respond to OODF. This may help in developing tools for assessing fertility of bulls, once validated in more animals.
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Affiliation(s)
- A Kumaresan
- Division of Reproduction, Department of Clinical Sciences, Faculty of Veterinary Medicine and Animal Science, Swedish University of Agricultural Sciences, PO Box 7054, SE-750 07 Uppsala, Sweden
| | - A Johannisson
- Division of Reproduction, Department of Clinical Sciences, Faculty of Veterinary Medicine and Animal Science, Swedish University of Agricultural Sciences, PO Box 7054, SE-750 07 Uppsala, Sweden
| | - A-S Bergqvist
- Division of Reproduction, Department of Clinical Sciences, Faculty of Veterinary Medicine and Animal Science, Swedish University of Agricultural Sciences, PO Box 7054, SE-750 07 Uppsala, Sweden
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83
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Elfassy Y, Bastard JP, McAvoy C, Fellahi S, Dupont J, Levy R. Adipokines in Semen: Physiopathology and Effects on Spermatozoas. Int J Endocrinol 2018; 2018:3906490. [PMID: 29971101 PMCID: PMC6008818 DOI: 10.1155/2018/3906490] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/05/2018] [Revised: 03/07/2018] [Accepted: 03/19/2018] [Indexed: 12/14/2022] Open
Abstract
Adipokines are secreted by adipose tissue and could be the link between obesity and infertility. Different studies investigated the involvement of adipokines in reproductive functions but only a few have looked into the male part. This review assesses adipokine functions on male reproductive parameters. Adiponectin seems to have a positive effect on sperm parameters, whereas other adipokines such as resistin or chemerin would have a rather deleterious effect on spermatogenesis. Semen parameters seem to be impacted when resistin and chemerin are increased: indeed, there is a decrease of sperm motility. Sperm morphology is improved when adiponectin is increased. The most studied adipokine, leptin, has a dual effect with a positive effect on sperm at physiological levels and a negative one for high seminal concentrations. Many semen parameters and fertility itself are disturbed according to semen adipokine levels, even if it is not the only interfering element. Taken together, adipokines are found in human and animal semen and most of them or their receptors are expressed in male genital tract. Although the pathophysiological role of adipokines in semen is not clearly elucidated, the adipokines could influence sperm functionality and could be potential biomarkers of male fertility.
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Affiliation(s)
- Yaelle Elfassy
- Assistance Publique des Hôpitaux de Paris, Hôpital Tenon, Service de Biologie de la Reproduction, Université Pierre et Marie Curie Paris 6, Paris, France
- Sorbonne Universités, UPMC Université Paris 06, INSERM UMRS_938, Centre de Recherche Saint-Antoine, IHU ICAN, Paris, France
| | - Jean-Philippe Bastard
- Sorbonne Universités, UPMC Université Paris 06, INSERM UMRS_938, Centre de Recherche Saint-Antoine, IHU ICAN, Paris, France
- Assistance Publique des Hôpitaux de Paris, Hôpital Tenon, UF Biomarqueurs Inflammatoires et Métaboliques, Service de Biochimie et Hormonologie, Paris, France
| | - Chloe McAvoy
- Sorbonne Universités, UPMC Université Paris 06, INSERM UMRS_938, Centre de Recherche Saint-Antoine, IHU ICAN, Paris, France
| | - Soraya Fellahi
- Sorbonne Universités, UPMC Université Paris 06, INSERM UMRS_938, Centre de Recherche Saint-Antoine, IHU ICAN, Paris, France
- Assistance Publique des Hôpitaux de Paris, Hôpital Tenon, UF Biomarqueurs Inflammatoires et Métaboliques, Service de Biochimie et Hormonologie, Paris, France
| | - Joëlle Dupont
- INRA, UMR85, Physiologie de la Reproduction et des Comportements, Nouzilly, France
| | - Rachel Levy
- Assistance Publique des Hôpitaux de Paris, Hôpital Tenon, Service de Biologie de la Reproduction, Université Pierre et Marie Curie Paris 6, Paris, France
- Sorbonne Universités, UPMC Université Paris 06, INSERM UMRS_938, Centre de Recherche Saint-Antoine, IHU ICAN, Paris, France
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84
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Skibinski DOF, Ghiselli F, Diz AP, Milani L, Mullins JGL. Structure-Related Differences between Cytochrome Oxidase I Proteins in a Stable Heteroplasmic Mitochondrial System. Genome Biol Evol 2018; 9:3265-3281. [PMID: 29149282 PMCID: PMC5726481 DOI: 10.1093/gbe/evx235] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/13/2017] [Indexed: 12/27/2022] Open
Abstract
Many bivalve species have two types of mitochondrial DNA passed independently through the female line (F genome) and male line (M genome). Here we study the cytochrome oxidase I protein in such bivalve species and provide evidence for differences between the F and M proteins in amino acid property values, particularly relating to hydrophobicity and helicity. The magnitude of these differences varies between different regions of the protein and the change from the ancestor is most marked in the M protein. The observed changes occur in parallel and in the same direction in the different species studied. Two possible causes are considered, first relaxation of purifying selection with drift and second positive selection. These may operate in different ways in different regions of the protein. Many different amino acid substitutions contribute in a small way to the observed variation, but substitutions involving alanine and serine have a quantitatively large effect. Some of these substitutions are potential targets for phosphorylation and some are close to residues of functional importance in the catalytic mechanism. We propose that the observed changes in the F and M proteins might contribute to functional differences between them relating to ATP production and mitochondrial membrane potential with implications for sperm function.
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Affiliation(s)
- David O F Skibinski
- Institute of Life Science, Swansea University Medical School, United Kingdom
| | - Fabrizio Ghiselli
- Department of Biological, Geological, and Environmental Sciences, University of Bologna, Italy
| | - Angel P Diz
- Department of Biochemistry, Genetics and Immunology, University of Vigo, Spain
| | - Liliana Milani
- Department of Biological, Geological, and Environmental Sciences, University of Bologna, Italy
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85
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Jin SK, Yang WX. Factors and pathways involved in capacitation: how are they regulated? Oncotarget 2018; 8:3600-3627. [PMID: 27690295 PMCID: PMC5356907 DOI: 10.18632/oncotarget.12274] [Citation(s) in RCA: 73] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2016] [Accepted: 09/23/2016] [Indexed: 01/07/2023] Open
Abstract
In mammals, fertilization occurs via a comprehensive progression of events. Freshly ejaculated sperm have yet to acquire progressive motility or fertilization ability. They must first undergo a series of biochemical and physiological changes, collectively known as capacitation. Capacitation is a significant prerequisite to fertilization. During the process of capacitation, changes in membrane properties, intracellular ion concentration and the activities of enzymes, together with other protein modifications, induce multiple signaling events and pathways in defined media in vitro or in the female reproductive tract in vivo. These, in turn, stimulate the acrosome reaction and prepare spermatozoa for penetration of the egg zona pellucida prior to fertilization. In the present review, we conclude all mainstream factors and pathways regulate capacitation and highlight their crosstalk. We also summarize the relationship between capacitation and assisted reproductive technology or human disease. In the end, we sum up the open questions and future avenues in this field.
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Affiliation(s)
- Shi-Kai Jin
- The Sperm Laboratory, College of Life Sciences, Zhejiang University, Hangzhou, China
| | - Wan-Xi Yang
- The Sperm Laboratory, College of Life Sciences, Zhejiang University, Hangzhou, China
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86
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Bravo Z, Valdivia M. Follicular fluid stimulates capacitation and acrosome reaction in alpaca sperm (Vicugna pacos). Reprod Domest Anim 2018; 53:629-635. [PMID: 29473229 DOI: 10.1111/rda.13151] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2017] [Accepted: 12/26/2017] [Indexed: 11/30/2022]
Abstract
The follicular fluid exerts an effect on the sperm capacitation of several species; however, these effects vary according to species, both in the sperm motility and in the subsequent acrosome reaction. In this study, the effect of alpaca follicular fluid (aFF) on the motility and acrosome reaction of alpaca spermatozoa was observed, using follicular fluid of three follicle sizes: small (<3 mm), medium (3-6 mm) and large (>6 mm), in a concentration of 30%. Sperm motility at the first hour of incubation with aFF of small follicles was 48.0%, with aFF of medium follicles it was 43.33% and with aFF of large follicles, it was 34.53%, while control averaged 26.00%. At the second hour, control achieved an average of 28.13%, treatment with aFF from small follicles showed an average of 46.53%, with aFF from medium follicles it was 40.00% and with aFF from large follicles it was 35.60%. The acrosome reaction after 4 hours of incubation was 30.06% for control, whereas for aFF of small follicles it was 66.3%, with aFF of medium follicles it was 58.86% and for aFF of large follicles, it was 67.63%. In the case of sperm motility, a significant difference is demonstrated for all treatments in relation to the control at the first hour, whereas only the treatments with aFF of small and medium follicles show a significant difference with respect to the control at the second hour. In the case of the acrosome reaction, all treatments with follicular fluid show a significant difference with respect to the control. It was concluded that alpaca follicular fluid favours sperm capacitation and the acrosome reaction in alpaca spermatozoa.
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Affiliation(s)
- Z Bravo
- Laboratory of Animal Reproductive Physiology, Biological Sciences Faculty, Universidad Nacional Mayor de San Marcos, Lima, Peru
| | - M Valdivia
- Laboratory of Animal Reproductive Physiology, Biological Sciences Faculty, Universidad Nacional Mayor de San Marcos, Lima, Peru
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87
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Ryu DY, Kim KU, Kwon WS, Rahman MS, Khatun A, Pang MG. Peroxiredoxin activity is a major landmark of male fertility. Sci Rep 2017; 7:17174. [PMID: 29215052 PMCID: PMC5719347 DOI: 10.1038/s41598-017-17488-7] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2017] [Accepted: 11/28/2017] [Indexed: 11/09/2022] Open
Abstract
Peroxiredoxins (PRDXs) are important antioxidant enzymes reported to have a role in sperm function and male fertility. However, how PRDXs affects male fertility remain fundamental unanswered questions. We therefore sought to investigate the role of these enzymes in sperm function and fertilisation. In this in vitro trial, mouse spermatozoa were incubated with different concentrations of conoidin A (1, 10, or 100 µM), a specific inhibitor of PRDXs. Our results demonstrated that inhibition of PRDXs by conoidin A significantly decreased the oxidized form of peroxiredoxins (PRDXs-SO3) in spermatozoa. Decreased PRDX activity was associated with a significant reduction in sperm motility parameters, viability, and intracellular ATP, whereas ROS levels, DNA fragmentation, and loss of mitochondrial membrane potential were increased. Simultaneously capacitation and the acrosome reaction were also significantly inhibited perhaps as a consequence of decreased tyrosine phosphorylation and protein kinase-A activity. In addition, fertilisation and early embryonic development were adversely affected following PRDXs inhibition in spermatozoa. Taken together, our data demonstrate that decreased PRDX activity directly affects male fertility due to negative effects on important functions and biochemical properties of spermatozoa, ultimately leading to poor fertilisation and embryonic development.
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Affiliation(s)
- Do-Yeal Ryu
- Department of Animal Science and Technology, Chung-Ang University, Anseong, Gyeonggi-do, 456-756, Republic of Korea
| | - Ki-Uk Kim
- Department of Animal Science and Technology, Chung-Ang University, Anseong, Gyeonggi-do, 456-756, Republic of Korea
| | - Woo-Sung Kwon
- Department of Animal Science and Technology, Chung-Ang University, Anseong, Gyeonggi-do, 456-756, Republic of Korea
| | - Md Saidur Rahman
- Department of Animal Science and Technology, Chung-Ang University, Anseong, Gyeonggi-do, 456-756, Republic of Korea
| | - Amena Khatun
- Department of Animal Science and Technology, Chung-Ang University, Anseong, Gyeonggi-do, 456-756, Republic of Korea
| | - Myung-Geol Pang
- Department of Animal Science and Technology, Chung-Ang University, Anseong, Gyeonggi-do, 456-756, Republic of Korea.
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88
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Molecular context of Schistosoma mansoni transmission in the molluscan environments: A mini-review. Acta Trop 2017; 176:98-104. [PMID: 28754250 DOI: 10.1016/j.actatropica.2017.07.021] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2017] [Revised: 07/18/2017] [Accepted: 07/19/2017] [Indexed: 12/22/2022]
Abstract
Schistosoma mansoni, being transmitted by some freshwater Biomphalaria snails, is a major causative agent of human schistosomiasis. In the absence of effective vaccine and alternative drug designs to fight against the disease, and with the limitations of molluscicide application, developing more efficient strategies to interrupt the snail-mediated parasite transmission is being emphasized as potentially instrumental in the efforts toward schistosomiasis elimination, hence, necessitating thorough and comprehensive understanding of the fundamental mechanisms involved in the transmission process. Based on the current advances, this paper presents a concise exposition of the cellular, biochemical, genetic and immunological dynamics of the complex and statge-by-stage interactions between the parasite and its vector in their aquatic environment. It also highlights the possible crosstalk between the parasite's intracellular cyclic adenosine monophosphate (cAMP) and p38 mitogen-activated protein kinase (p38 MAPK) during the intramolluscan stage. Undoubtedly, decades of intensive investigation have untangled many S. mansoni-B. glabrata complexities, yet many aspects of the parasite-vector cycle which can help define potential control clues await further elucidation.
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89
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Ramírez-Reveco A, Villarroel-Espíndola F, Rodríguez-Gil JE, Concha II. Neuronal signaling repertoire in the mammalian sperm functionality. Biol Reprod 2017; 96:505-524. [PMID: 28339693 DOI: 10.1095/biolreprod.116.144154] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2016] [Accepted: 01/24/2017] [Indexed: 12/14/2022] Open
Abstract
The common embryonic origin has been a recurrent explanation to understand the presence of "neural receptors" in sperm. However, this designation has conditioned a bias marked by the classical neurotransmission model, dismissing the possibility that neurotransmitters can play specific roles in the sperm function by themselves. For instance, the launching of acrosome reaction, a fundamental sperm function, includes several steps that recall the process of presynaptic secretion. Unlike of postsynaptic neuron, whose activation is mediated by molecular interaction between neurotransmitter and postsynaptic receptors, the oocyte activation is not mediated by receptors, but by cytosolic translocation of sperm phospholipase (PLCζ). Thus, the sperm has a cellular design to access and activate the oocyte and restore the ploidy of the species by an "allogenic pronuclear fusion." At subcellular level, the events controlling sperm function, particularly the capacitation process, are activated by chemical signals that trigger ion fluxes, sterol oxidation, synthesis of cyclic adenosine monophosphate, protein kinase A activation, tyrosine phosphorylations and calcium signaling, which correspond to second messengers similar to those associated with exocytosis and growth cone guidance in neurons. Classically, the sperm function associated with neural signals has been analyzed as a unidimensional approach (single ligand-receptor effect). However, the in vivo sperm are exposed to multidimensional signaling context, for example, the GABAergic, monoaminergic, purinergic, cholinergic, and melatoninergic, to name a few. The aim of this review is to present an overview of sperm functionality associated with "neuronal signaling" and possible cellular and molecular mechanisms involved in their regulation.
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Affiliation(s)
- Alfredo Ramírez-Reveco
- Instituto de Ciencia Animal, Facultad de Ciencias Veterinarias, Universidad Austral de Chile, Valdivia, Chile
| | - Franz Villarroel-Espíndola
- Instituto de Bioquímica y Microbiología, Facultad de Ciencias, Universidad Austral de Chile, Valdivia, Chile.,Department of Pathology and Pediatric Pathology, Yale University, New Haven, Connecticut, USA
| | - Joan E Rodríguez-Gil
- Unitat de Reproducció Animal, Facultat de Veterinària, Universitat Autònoma de Barcelona, Bellaterra, Barcelona, Spain
| | - Ilona I Concha
- Instituto de Bioquímica y Microbiología, Facultad de Ciencias, Universidad Austral de Chile, Valdivia, Chile
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90
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Evaluation of protein phosphorylation in bull sperm during their maturation in the epididymis. Cell Tissue Res 2017; 371:365-373. [DOI: 10.1007/s00441-017-2705-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2017] [Accepted: 09/15/2017] [Indexed: 12/17/2022]
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91
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Wong CW, Lam KKW, Lee CL, Yeung WSB, Zhao WE, Ho PC, Ou JP, Chiu PCN. The roles of protein disulphide isomerase family A, member 3 (ERp57) and surface thiol/disulphide exchange in human spermatozoa-zona pellucida binding. Hum Reprod 2017; 32:733-742. [PMID: 28175305 DOI: 10.1093/humrep/dex007] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2016] [Accepted: 01/16/2017] [Indexed: 12/28/2022] Open
Abstract
Study question Are multimeric sperm plasma membrane protein complexes, ERp57 and sperm surface thiol content involved in human spermatozoa-zona pellucida (ZP) interaction? Summary answer ERp57 is a component of a multimeric spermatozoa-ZP receptor complex involved in regulation of human spermatozoa-ZP binding via up-regulation of sperm surface thiol content. What is known already A spermatozoon acquires its fertilization capacity within the female reproductive tract by capacitation. Spermatozoa-ZP receptor is suggested to be a composite structure that is assembled into a functional complex during capacitation. Sperm surface thiol content is elevated during capacitation. ERp57 is a protein disulphide isomerase that modulates the thiol-disulphide status of proteins. Study design, size, duration The binding ability and components of protein complexes in extracted membrane protein fractions of spermatozoa were studied. The roles of capacitation, thiol-disulphide reagent treatments and ERp57 on sperm functions and sperm surface thiol content were assessed. Participants/materials, setting, methods Spermatozoa were obtained from semen samples from normozoospermic men. Human oocytes were obtained from an assisted reproduction programme. Blue native polyacrylamide gel electrophoresis, western ligand blotting and mass spectrometry were used to identify the components of solubilized ZP/ZP3-binding complexes. The localization and expression of sperm surface thiol and ERp57 were studied by immunostaining and sperm surface protein biotinylation followed by western blotting. Sperm functions were assessed by standard assays. Main results and the role of chance Several ZP-binding complexes were isolated from the cell membrane of capacitated spermatozoa. ERp57 was a component of one of these complexes. Capacitation significantly increased the sperm surface thiol content, acrosomal thiol distribution and ERp57 expression on sperm surface. Sperm surface thiol and ERp57 immunoreactivity were localized to the acrosomal region of spermatozoa, a region responsible for ZP-binding. Up-regulation of the surface thiol content or ERp57 surface expression in vitro stimulated ZP-binding capacity of human spermatozoa. Blocking of ERp57 function by specific antibody or inhibitors against ERp57 reduced the surface thiol content and ZP-binding capacity of human spermatozoa. Large scale data N/A. Limitations, reasons for caution The mechanisms by which up-regulation of surface thiol content stimulates spermatozoa-ZP binding have not been depicted. Wider implications of the findings Thiol-disulphide exchange is a crucial event in capacitation. ERp57 modulates the event and the subsequent fertilization process. Modulation of the surface thiol content of the spermatozoa of subfertile men may help to increase fertilization rate in assisted reproduction. Study funding/competing interest(s) This work was supported by The Hong Kong Research Grant Council Grant HKU764611 and HKU764512M to P.C.N.C. The authors have no competing interests.
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Affiliation(s)
- Chi-Wai Wong
- Department of Obstetrics and Gynaecology, The University of Hong Kong, Queen Mary Hospital, Pokfulam Road, Hong Kong, Hong Kong SAR, China
| | - Kevin K W Lam
- Department of Obstetrics and Gynaecology, The University of Hong Kong, Queen Mary Hospital, Pokfulam Road, Hong Kong, Hong Kong SAR, China.,Centre of Reproduction, Development and Growth, The University of Hong Kong, Queen Mary Hospital, Pokfulam Road, Hong Kong, Hong Kong SAR, China.,Shenzhen Key Laboratory of Fertility Regulation, Department of Obstetrics and Gynecology, The University of Hong Kong-Shenzhen Hospital, Shenzhen, Hong Kong SAR, P.R. China
| | - Cheuk-Lun Lee
- Department of Obstetrics and Gynaecology, The University of Hong Kong, Queen Mary Hospital, Pokfulam Road, Hong Kong, Hong Kong SAR, China.,Centre of Reproduction, Development and Growth, The University of Hong Kong, Queen Mary Hospital, Pokfulam Road, Hong Kong, Hong Kong SAR, China.,Shenzhen Key Laboratory of Fertility Regulation, Department of Obstetrics and Gynecology, The University of Hong Kong-Shenzhen Hospital, Shenzhen, Hong Kong SAR, P.R. China
| | - William S B Yeung
- Department of Obstetrics and Gynaecology, The University of Hong Kong, Queen Mary Hospital, Pokfulam Road, Hong Kong, Hong Kong SAR, China.,Centre of Reproduction, Development and Growth, The University of Hong Kong, Queen Mary Hospital, Pokfulam Road, Hong Kong, Hong Kong SAR, China.,Shenzhen Key Laboratory of Fertility Regulation, Department of Obstetrics and Gynecology, The University of Hong Kong-Shenzhen Hospital, Shenzhen, Hong Kong SAR, P.R. China
| | - Wei E Zhao
- The Sixth Affiliated Hospital of Sun Yat-Sen University, Guangzhou, P.R. China
| | - Pak-Chung Ho
- Department of Obstetrics and Gynaecology, The University of Hong Kong, Queen Mary Hospital, Pokfulam Road, Hong Kong, Hong Kong SAR, China.,Centre of Reproduction, Development and Growth, The University of Hong Kong, Queen Mary Hospital, Pokfulam Road, Hong Kong, Hong Kong SAR, China.,Shenzhen Key Laboratory of Fertility Regulation, Department of Obstetrics and Gynecology, The University of Hong Kong-Shenzhen Hospital, Shenzhen, Hong Kong SAR, P.R. China
| | - Jian-Ping Ou
- Center for Reproductive Medicine, The Third Affiliated Hospital, Sun Yat-Sen University, Guangzhou, P.R. China
| | - Philip C N Chiu
- Department of Obstetrics and Gynaecology, The University of Hong Kong, Queen Mary Hospital, Pokfulam Road, Hong Kong, Hong Kong SAR, China.,Centre of Reproduction, Development and Growth, The University of Hong Kong, Queen Mary Hospital, Pokfulam Road, Hong Kong, Hong Kong SAR, China.,Shenzhen Key Laboratory of Fertility Regulation, Department of Obstetrics and Gynecology, The University of Hong Kong-Shenzhen Hospital, Shenzhen, Hong Kong SAR, P.R. China
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92
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Khatun A, Rahman MS, Ryu DY, Kwon WS, Pang MG. Elevated aminopeptidase N affects sperm motility and early embryo development. PLoS One 2017; 12:e0184294. [PMID: 28859152 PMCID: PMC5578674 DOI: 10.1371/journal.pone.0184294] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2017] [Accepted: 08/21/2017] [Indexed: 11/18/2022] Open
Abstract
Aminopeptidase N (APN) is a naturally occurring ectopeptidase present in mammalian semen. Previous studies have demonstrated that APN adversely affects male fertility through the alteration of sperm motility. This enzyme constitutes 0.5 to 1% of the seminal plasma proteins, which can be transferred from the prostasomes to sperms by a fusion process. In the present study, we investigated the molecular mechanism of action of APN and its role in regulating sperm functions and male fertility. In this in vitro study, epididymal mouse spermatozoa were incubated in a capacitating media (pH 7) containing 20 ng/mL of recombinant mouse APN for 90 min. Our results demonstrated that the supplementation of recombinant APN in sperm culture medium significantly increased APN activity, and subsequently altered motility, hyperactivated motility, rapid and medium swimming speeds, viability, and the acrosome reaction of mouse spermatozoa. These effects were potentially caused by increased toxicity in the spermatozoa. Further, altered APN activity in sperm culture medium affected early embryonic development. Interestingly, the effect of elevated APN activity in sperm culture medium was independent of protein tyrosine phosphorylation and protein kinase A activity. On the basis of these results, we concluded that APN plays a significant role in the regulation of several sperm functions and early embryonic development. In addition, increased APN activity could potentially lead to several adverse consequences related to male fertility.
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Affiliation(s)
- Amena Khatun
- Department of Animal Science and Technology, Chung-Ang University, Anseong, Republic of Korea
| | - Md Saidur Rahman
- Department of Animal Science and Technology, Chung-Ang University, Anseong, Republic of Korea
| | - Do-Yeal Ryu
- Department of Animal Science and Technology, Chung-Ang University, Anseong, Republic of Korea
| | - Woo-Sung Kwon
- Department of Animal Science and Technology, Chung-Ang University, Anseong, Republic of Korea
| | - Myung-Geol Pang
- Department of Animal Science and Technology, Chung-Ang University, Anseong, Republic of Korea
- * E-mail:
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93
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Rahman MS, Kwon WS, Pang MG. Prediction of male fertility using capacitation-associated proteins in spermatozoa. Mol Reprod Dev 2017; 84:749-759. [DOI: 10.1002/mrd.22810] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2016] [Accepted: 03/28/2017] [Indexed: 12/17/2022]
Affiliation(s)
- Md Saidur Rahman
- Department of Animal Science and Technology; Chung-Ang University; Anseong Republic of Korea
| | - Woo-Sung Kwon
- Department of Animal Science and Technology; Chung-Ang University; Anseong Republic of Korea
| | - Myung-Geol Pang
- Department of Animal Science and Technology; Chung-Ang University; Anseong Republic of Korea
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94
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Águila L, Zambrano F, Arias ME, Felmer R. Sperm capacitation pretreatment positively impacts bovine intracytoplasmic sperm injection. Mol Reprod Dev 2017; 84:649-659. [PMID: 28513911 DOI: 10.1002/mrd.22834] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2016] [Revised: 05/02/2017] [Accepted: 05/11/2017] [Indexed: 11/08/2022]
Abstract
The efficiency of intracytoplasmic sperm injection (ICSI) in bovines is low compared to other species due in part to inadequate egg activation and sperm nucleus decondensation after injection. We hypothesized that this low efficiency is due to the lack of complete sperm capacitation, so we evaluated the effects of isobutylmethylxanthine (IBMX) and methyl-β-cyclodextrin (MβCD) on bovine sperm capacitation and on the preimplantation developmental potential of bovine embryos generated by ICSI. Treatment with IBMX and MβCD decreased sperm viability (between 13-30%); nevertheless, 0.4 mM IBMX and 1 mM MβCD increased (p < 0.05) capacitation metrics-that is, acrosome exocytosis, intracellular calcium level, plasma membrane fluidity, and tyrosine phosphorylation-compared to the control. After ICSI, embryos injected with IBMX- and MβCD-treated sperm showed similar cleavage to the untreated group (range 82-88%). Pronucleus formation rate was higher with MβCD-pretreatment (54%) compared to the control group (25%), and blastocyst rate was significantly improved with MβCD-pretreatment (24%) compared to the IBMX (18%) and control (17%) groups. Importantly, embryo quality-as assessed by the total number of cells, cell allocation, and apoptotic cell index-was not affected by the sperm treatments. In conclusion, MβCD pretreatment of sperm improved the efficiency of blastocyst production in bovine ICSI.
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Affiliation(s)
- Luis Águila
- Laboratory of Reproduction, Centre of Reproductive Biotechnology (CEBIOR-BIOREN), Universidad de La Frontera, Temuco, Chile
| | - Fabiola Zambrano
- Laboratory of Reproduction, Centre of Reproductive Biotechnology (CEBIOR-BIOREN), Universidad de La Frontera, Temuco, Chile
| | - Maria E Arias
- Laboratory of Reproduction, Centre of Reproductive Biotechnology (CEBIOR-BIOREN), Universidad de La Frontera, Temuco, Chile.,Faculty of Agriculture and Forestry Sciences, Department of Agricultural Sciences and Natural Resources, Universidad de La Frontera, Temuco, Chile
| | - Ricardo Felmer
- Laboratory of Reproduction, Centre of Reproductive Biotechnology (CEBIOR-BIOREN), Universidad de La Frontera, Temuco, Chile.,Faculty of Agriculture and Forestry Sciences, Department of Agricultural Sciences and Natural Resources, Universidad de La Frontera, Temuco, Chile
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95
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Baek S, Lee ST, Hwang JY, Park KH, Yun JI. Identification of capacitation inducers customized to sperm retrieved from inbred mouse epididymis. Biochem Biophys Res Commun 2017; 488:273-277. [DOI: 10.1016/j.bbrc.2017.04.152] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2017] [Accepted: 04/29/2017] [Indexed: 12/12/2022]
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96
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Posttranslational Modifications in Spermatozoa and Effects on Male Fertility and Sperm Viability. ACTA ACUST UNITED AC 2017; 21:245-256. [DOI: 10.1089/omi.2016.0173] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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97
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Endoplasmic Reticulum Stress and Homeostasis in Reproductive Physiology and Pathology. Int J Mol Sci 2017; 18:ijms18040792. [PMID: 28397763 PMCID: PMC5412376 DOI: 10.3390/ijms18040792] [Citation(s) in RCA: 157] [Impact Index Per Article: 22.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2017] [Revised: 03/30/2017] [Accepted: 03/31/2017] [Indexed: 01/07/2023] Open
Abstract
The endoplasmic reticulum (ER), comprises 60% of the total cell membrane and interacts directly or indirectly with several cell organelles i.e., Golgi bodies, mitochondria and proteasomes. The ER is usually associated with large numbers of attached ribosomes. During evolution, ER developed as the specific cellular site of synthesis, folding, modification and trafficking of secretory and cell-surface proteins. The ER is also the major intracellular calcium storage compartment that maintains cellular calcium homeostasis. During the production of functionally effective proteins, several ER-specific molecular steps sense quantity and quality of synthesized proteins as well as proper folding into their native structures. During this process, excess accumulation of unfolded/misfolded proteins in the ER lumen results in ER stress, the homeostatic coping mechanism that activates an ER-specific adaptation program, (the unfolded protein response; UPR) to increase ER-associated degradation of structurally and/or functionally defective proteins, thus sustaining ER homeostasis. Impaired ER homeostasis results in aberrant cellular responses, contributing to the pathogenesis of various diseases. Both female and male reproductive tissues undergo highly dynamic cellular, molecular and genetic changes such as oogenesis and spermatogenesis starting in prenatal life, mainly controlled by sex-steroids but also cytokines and growth factors throughout reproductive life. These reproductive changes require ER to provide extensive protein synthesis, folding, maturation and then their trafficking to appropriate cellular location as well as destroying unfolded/misfolded proteins via activating ER-associated degradation mediated proteasomes. Many studies have now shown roles for ER stress/UPR signaling cascades in the endometrial menstrual cycle, ovarian folliculogenesis and oocyte maturation, spermatogenesis, fertilization, pre-implantation embryo development and pregnancy and parturition. Conversely, the contribution of impaired ER homeostasis by severe/prolong ER stress-mediated UPR signaling pathways to several reproductive tissue pathologies including endometriosis, cancers, recurrent pregnancy loss and pregnancy complications associated with pre-term birth have been reported. This review focuses on ER stress and UPR signaling mechanisms, and their potential roles in female and male reproductive physiopathology involving in menstrual cycle changes, gametogenesis, preimplantation embryo development, implantation and placentation, labor, endometriosis, pregnancy complications and preterm birth as well as reproductive system tumorigenesis.
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98
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Nait Mouloud M, Ouennoughi F, Yaiche L, Kaidi R, Iguer-ouada M. Effects of female bovine plasma collected at different days of the estrous cycle on epididymal spermatozoa motility. Theriogenology 2017; 91:44-54. [DOI: 10.1016/j.theriogenology.2016.12.020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2016] [Revised: 12/03/2016] [Accepted: 12/20/2016] [Indexed: 10/20/2022]
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99
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Singh DK, Deshmukh RK, Narayanan PK, Shivaji S, Siva AB. SRC family kinases in hamster spermatozoa: evidence for the presence of LCK. Reproduction 2017; 153:655-669. [PMID: 28250239 DOI: 10.1530/rep-16-0591] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2016] [Revised: 02/03/2017] [Accepted: 02/28/2017] [Indexed: 01/16/2023]
Abstract
Sperm capacitation is a prerequisite for successful fertilization. Increase in tyrosine phosphorylation is considered the hallmark of capacitation and attempts to understand its regulation are ongoing. In this regard, we attempted to study the role of SRC family kinases (SFKs) in the hamster sperm functions. Interestingly, we found the presence of the lymphocyte-specific protein tyrosine kinase, LCK, in mammalian spermatozoa and further characterized it in terms of its localization and function. LCK was found in spermatozoa of several species, and its transcript was identified in the hamster testis. Autophosphorylation of LCK at the Y394 residue increased as capacitation progressed, indicating an upregulation of LCK activity during capacitation. Inhibition of LCK (and perhaps the other SFKs) with the use of a specific inhibitor showed a significant decrease in protein tyrosine phosphorylation of several proteins, implying LCK/SFKs as key tyrosine kinase(s) regulating tyrosine phosphorylation during hamster sperm capacitation. Dihydrolipoamide dehydrogenase was identified as a substrate for LCK/SFK. LCK/SFKs inhibition significantly reduced the percentage fertilization (in vitro) but had no effect on sperm motility, hyperactivation and acrosome reaction. In summary, this is the first report on the presence of LCK, an SFK of hematopoietic lineage in spermatozoa besides being the first study on the role of SFKs in the spermatozoa of Syrian hamsters.
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Affiliation(s)
| | | | | | - Sisinthy Shivaji
- CSIR-Centre for Cellular and Molecular BiologyHyderabad 500007, India
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100
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Guasti PN, Monteiro GA, Maziero RRD, Carmo MT, Dell'Aqua JA, Crespilho AM, Rifai EA, Papa FO. Pentoxifylline effects on capacitation and fertility of stallion epididymal sperm. Anim Reprod Sci 2017; 179:27-34. [PMID: 28238445 DOI: 10.1016/j.anireprosci.2017.01.013] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2016] [Revised: 01/15/2017] [Accepted: 01/29/2017] [Indexed: 10/20/2022]
Abstract
The aims of this study were to determinate whether pentoxifylline (PTX) increases the motion parameters of fresh and frozen-thawed equine epididymal spermatozoa, to evaluate the tyrosine phosphorylation of frozen-thawed epididymal sperm in the presence of PTX and to determine whether the PTX-treatment of stallion epididymal sperm prior to freezing improves the fertility response of mares to a reduced number of spermatozoa per insemination dose. Fifty epididymis were flushed with a skim milk based extender with or without PTX. The pre-treatment with PTX enhanced the sperm motility after being harvested (P<0.05); however the freeze-thaw process did not alter the sperm kinematics between control and treated samples (P>0.05). Plasma membrane integrity did not differ between control and PTX group after recovery and after thawing (P>0.05), as observed in tyrosine phosphorylation, which the PTX treatment did not alter the percentage of tail-associated immunofluorescence of cryopreserved epididymal sperm (P>0.05). For the fertility trial, different insemination groups were tested: 800×106 epididymal sperm (C800); 100×106 epididymal sperm (C100); 100×106 epididymal sperm recovered in an extender containing PTX (PTX100). The conception rates for C800; C100 and PTX100 were 68.7% (11/16); 31.5% (5/16) and 50% (8/16), respectively. The conception rate did not differ among groups (P>0.05), however, a low number of animals was used in this study. A trend toward significance (P=0.07) was observed between C800 and C100 groups. In conclusion, PTX has no deleterious effect on sperm motility, viability and capacitation of cryopreserved stallion epididymal sperm. The conventional artificial insemination with 100×106 sperm recovered with PTX ensures acceptable conception rates and maximize the limited number of doses of cryopreserved stallion epididymal sperm.
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Affiliation(s)
- P N Guasti
- Department of Animal Reproduction and Veterinary Radiology, School of Veterinary Medicine and Animal Science, São Paulo State University, Botucatu, Brazil.
| | - G A Monteiro
- Department of Animal Reproduction and Veterinary Radiology, School of Veterinary Medicine and Animal Science, São Paulo State University, Botucatu, Brazil
| | - R R D Maziero
- Department of Animal Reproduction and Veterinary Radiology, School of Veterinary Medicine and Animal Science, São Paulo State University, Botucatu, Brazil
| | - M T Carmo
- Department of Animal Reproduction and Veterinary Radiology, School of Veterinary Medicine and Animal Science, São Paulo State University, Botucatu, Brazil
| | - J A Dell'Aqua
- Department of Animal Reproduction and Veterinary Radiology, School of Veterinary Medicine and Animal Science, São Paulo State University, Botucatu, Brazil
| | | | - E A Rifai
- Division of Molecular & Computational Toxicology, Vrije Universiteit Amsterdam, The Netherlands
| | - F O Papa
- Department of Animal Reproduction and Veterinary Radiology, School of Veterinary Medicine and Animal Science, São Paulo State University, Botucatu, Brazil
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