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Fujikura M, Fujinoki M. Progesterone and estradiol regulate sperm hyperactivation and in vitro fertilization success in mice. J Reprod Dev 2024; 70:96-103. [PMID: 38346725 PMCID: PMC11017098 DOI: 10.1262/jrd.2023-080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Accepted: 01/13/2024] [Indexed: 04/05/2024] Open
Abstract
Progesterone (P) and 17β-estradiol (Eβ) form the well-known hormone pair that regulates sperm capacitation. Here, we examined the regulatory effects of P and Eβ on sperm hyperactivation in mice and evaluated the in vitro fertilization (IVF) success. Although P enhanced hyperactivation, Eβ dose-dependently suppressed the P-enhanced hyperactivation. Moreover, P increased IVF success, whereas Eβ suppressed the P-induced increase in IVF success in a dose-dependent manner. Thus, P and Eβ competitively regulate hyperactivation and IVF success in mice. Since P and Eβ concentrations generally change during the estrous cycle, sperm are speculated to capacitate in response to the oviductal environment and fertilize the oocyte.
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Affiliation(s)
- Miyu Fujikura
- Research Laboratory of Laboratory Animals, Research Center for Laboratory Animals, Comprehensive Research Facilities for Advanced Medical Science, School of Medicine, Dokkyo Medical University, Tochigi 321-0293, Japan
| | - Masakatsu Fujinoki
- Research Laboratory of Laboratory Animals, Research Center for Laboratory Animals, Comprehensive Research Facilities for Advanced Medical Science, School of Medicine, Dokkyo Medical University, Tochigi 321-0293, Japan
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2
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Miyazawa Y, Fujinoki M. Enhancement of rat spermatozoal hyperactivation by progesterone. J Reprod Dev 2023; 69:279-290. [PMID: 37690839 PMCID: PMC10602764 DOI: 10.1262/jrd.2023-040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Accepted: 08/19/2023] [Indexed: 09/12/2023] Open
Abstract
Progesterone (P) is a well-known enhancer of hyperactivation which is associated with the success of in vitro fertilization (IVF). In this study, we examined whether P-enhanced hyperactivation affected IVF success in rats. When rat spermatozoa were exposed to 10, 20, and 40 ng/ml P, 20 ng/ml P enhanced hyperactivation via the membrane progesterone receptor. In addition, the enhancement of hyperactivation by 20 ng/ml P was regulated by phospholipase C, transmembrane adenylate cyclase, and protein kinase A. However, 20 ng/ml P did not affect IVF success. These results suggest that 20 ng/ml P enhances rat spermatozoal hyperactivation through non-genomic pathways. Because the concentration of P changes during the estrous cycle, it seems that rat spermatozoa are hyperactivated in response to the oviductal environment. However, the effect of 20 ng/ml P does not seem to fully capacitate spermatozoa.
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Affiliation(s)
- Yuki Miyazawa
- Research Laboratory of Laboratory Animals, Research Center for Laboratory Animals, Comprehensive Research Facilities for Advanced Medical Science, School of Medicine, Dokkyo Medical University, Tochigi 321-0293, Japan
| | - Masakatsu Fujinoki
- Research Laboratory of Laboratory Animals, Research Center for Laboratory Animals, Comprehensive Research Facilities for Advanced Medical Science, School of Medicine, Dokkyo Medical University, Tochigi 321-0293, Japan
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3
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Miyashita M, Fujinoki M. Effects of aging and oviductal hormones on testes, epididymides, and sperm of hamster. Reprod Med Biol 2022; 21:e12474. [PMID: 35795382 PMCID: PMC9250758 DOI: 10.1002/rmb2.12474] [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: 03/15/2022] [Revised: 06/07/2022] [Accepted: 06/09/2022] [Indexed: 11/13/2022] Open
Abstract
Purpose Aging is a major cause of decreased fertility. Using hamster, we examined the effects of aging on testes, epididymides, and sperm. Additionally, we examined whether progesterone (P4), melatonin (Mel) and 5‐hydroxytryptamine (5‐HT) mitigated effects of aging on sperm. Methods Young (10–16 weeks), Adult (5–7 months), Aged (13–15 months), and Old (19–22 months) hamsters were used. Weights of bodies, testes, and epididymides were measured. Testes and epididymides were studied by histological microscopy. Sera were obtained to determine testosterone concentrations. Sperm were analyzed by video‐microscopy. Results By aging, body weights increased but weights of testes and epididymides decreased. Most hamsters were normozoospermia, although several old hamsters were azoospermia. In testes and epididymides, desquamation and structures resembling residual bodies (SRRBs) were observed. Although desquamation was not always related to aging, SRRBs occurred by aging. Testosterone concentrations were not changed in normozoospermic hamsters, but it was significantly reduced in old azoospermic hamster. Aging significantly reduced sperm ability to exhibit hyperactivation. Additionally, aging significantly increased the straight‐line velocity (VSL). P4, Mel, and 5‐HT lessened the reduction in sperm hyperactivation and the increasing of VSL. Conclusion Aging reduces qualities of testes, epididymides, and sperm, and P4, Mel, and 5‐HT recover reduced quality of sperm.
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Affiliation(s)
- Manami Miyashita
- Research Lab. of Laboratory Animals, Research Center for Laboratory Animals, Comprehensive Research Facilities for Advanced Medical Science, School of Medicine Dokkyo Medical University Tochigi Japan
| | - Masakatsu Fujinoki
- Research Lab. of Laboratory Animals, Research Center for Laboratory Animals, Comprehensive Research Facilities for Advanced Medical Science, School of Medicine Dokkyo Medical University Tochigi Japan
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4
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Sakamoto C, Fujinoki M, Kitazawa M, Obayashi S. Serotonergic signals enhanced hamster sperm hyperactivation. J Reprod Dev 2021; 67:241-250. [PMID: 33980767 PMCID: PMC8423610 DOI: 10.1262/jrd.2020-108] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
In the present study, we investigated the regulatory mechanisms underlying sperm hyperactivation enhanced by 5-hydroxytryptamine (5-HT) in hamsters. First, we examined the types of 5-HT
receptors that regulate hyperactivation. Hyperactivation was significantly enhanced by 5-HT2A and 5-HT4 receptor agonists. Moreover, the results of the motility assay
revealed that 5-HT2A, 5-HT3, and 5-HT4 receptor agonists significantly decreased the velocity and/or amplitude of sperm. Under 5-HT2 receptor
stimulation, hyperactivation was associated with phospholipase C (PLC), inositol 1,4,5-trisphosphate (IP3) receptor, soluble adenylate cyclase (sAC), and protein kinase A (PKA).
In contrast, under 5-HT4 receptor stimulation, hyperactivation was associated with transmembrane adenylate cyclase (tmAC), sAC, PKA, and CatSper channels. Accordingly, under the
condition that sperm are hyperactivated, 5-HT likely stimulates PLC/IP3 receptor signals via the 5-HT2A receptor and tmAC/PKA/CatSper channel signals via the
5-HT4 receptor. After sAC and PKA are activated by these stimulations, sperm hyperactivation is enhanced.
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Affiliation(s)
- Chiyori Sakamoto
- Department of Obstetrics and Gynecology, School of Medicine, Dokkyo Medical University, Tochigi 321-0293, Japan
| | - Masakatsu Fujinoki
- Research Lab. of Laboratory Animals, Research Center for Laboratory Animals, Comprehensive Research Facilities for Advanced Medical Science, School of Medicine, Dokkyo Medical University, Tochigi 321-0293, Japan
| | - Masafumi Kitazawa
- Department of Obstetrics and Gynecology, School of Medicine, Dokkyo Medical University, Tochigi 321-0293, Japan
| | - Satoshi Obayashi
- Department of Obstetrics and Gynecology, School of Medicine, Dokkyo Medical University, Tochigi 321-0293, Japan
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5
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Mahé C, Zlotkowska AM, Reynaud K, Tsikis G, Mermillod P, Druart X, Schoen J, Saint-Dizier M. Sperm migration, selection, survival, and fertilizing ability in the mammalian oviduct†. Biol Reprod 2021; 105:317-331. [PMID: 34057175 PMCID: PMC8335357 DOI: 10.1093/biolre/ioab105] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Revised: 04/28/2021] [Accepted: 05/21/2021] [Indexed: 12/23/2022] Open
Abstract
In vitro fertilization (IVF) gives rise to embryos in a number of mammalian species and is currently widely used for assisted reproduction in humans and for genetic purposes in cattle. However, the rate of polyspermy is generally higher in vitro than in vivo and IVF remains ineffective in some domestic species like pigs and horses, highlighting the importance of the female reproductive tract for gamete quality and fertilization. In this review, the way the female environment modulates sperm selective migration, survival, and acquisition of fertilizing ability in the oviduct is being considered under six aspects: (1) the utero-tubal junction that selects a sperm sub-population entering the oviduct; (2) the presence of sperm binding sites on luminal epithelial cells in the oviduct, which prolong sperm viability and plays a role in limiting polyspermic fertilization; (3) the contractions of the oviduct, which promote sperm migration toward the site of fertilization in the ampulla; (4) the regions of the oviduct, which play different roles in regulating sperm physiology and interactions with oviduct epithelial cells; (5) the time of ovulation, and (6) the steroid hormonal environment which regulates sperm release from the luminal epithelial cells and facilitates capacitation in a finely orchestrated manner.
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Affiliation(s)
- Coline Mahé
- CNRS, IFCE, INRAE, Université de Tours, PRC, Nouzilly, France
| | | | - Karine Reynaud
- CNRS, IFCE, INRAE, Université de Tours, PRC, Nouzilly, France
| | | | | | - Xavier Druart
- CNRS, IFCE, INRAE, Université de Tours, PRC, Nouzilly, France
| | - Jennifer Schoen
- Institute of Reproductive Biology, Leibniz Institute for Farm Animal Biology, FBN, Dummerstorf, Germany
| | - Marie Saint-Dizier
- CNRS, IFCE, INRAE, Université de Tours, PRC, Nouzilly, France.,Tours University, Faculty of Sciences and Techniques, Agrosciences Department, Tours, France
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6
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Gimeno-Martos S, Santorromán-Nuez M, Cebrián-Pérez JA, Muiño-Blanco T, Pérez-Pé R, Casao A. Involvement of progesterone and estrogen receptors in the ram sperm acrosome reaction. Domest Anim Endocrinol 2021; 74:106527. [PMID: 32799038 DOI: 10.1016/j.domaniend.2020.106527] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Revised: 07/01/2020] [Accepted: 07/17/2020] [Indexed: 12/28/2022]
Abstract
The steroid hormones 17-β estradiol (E2) and progesterone (P4) can regulate capacitation, hyperactive motility, and the acrosome reaction (AR) during the sperm transit through the female tract. Moreover, exogenous P4 and E2 can induce the AR in ovine spermatozoa, and progesterone receptor (PR) and estrogen receptors (ERα and ERβ) are present in these cells. Thus, to investigate whether the effects both steroid hormones in ram sperm capacitation and AR are receptor-mediated, we incubated them with receptor agonists (tanaproget 1 μM and 5 μM for PR or resveratrol 5 μM and 10 μM for ER) or antagonists (mifepristone 4 μM and 40 μM for PR or tamoxifen 5 μM and 10 μM for ER) in capacitating conditions. The addition of receptor modulators did not affect sperm viability or total motility, although changes in progressive motility were detected. The incubation with both receptor agonists increased the percentage of acrosome-reacted spermatozoa, evaluated by chlortetracycline staining, when compared with the capacitated nontreated sample (Cap-C, P < 0.001). Moreover, the ER agonist resveratrol 10 μM provoked a greater AR than E2 (P < 0.01). Furthermore, the incubation with the receptor antagonists prevented the induction of the AR by P4 or E2, as the antagonists-treated spermatozoa presented a similar CTC pattern to that of Cap-C. In conclusion, these results confirm that P4 and E2 can induce the AR in ram spermatozoa and that this effect is receptor-mediated.
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Affiliation(s)
- S Gimeno-Martos
- Grupo BIOFITER, Departamento de Bioquímica y Biología Molecular y Celular, Facultad de Veterinaria, Instituto Universitario de Investigación en Ciencias Ambientales de Aragón (IUCA), Universidad de Zaragoza, Zaragoza, Spain
| | - M Santorromán-Nuez
- Grupo BIOFITER, Departamento de Bioquímica y Biología Molecular y Celular, Facultad de Veterinaria, Instituto Universitario de Investigación en Ciencias Ambientales de Aragón (IUCA), Universidad de Zaragoza, Zaragoza, Spain
| | - J A Cebrián-Pérez
- Grupo BIOFITER, Departamento de Bioquímica y Biología Molecular y Celular, Facultad de Veterinaria, Instituto Universitario de Investigación en Ciencias Ambientales de Aragón (IUCA), Universidad de Zaragoza, Zaragoza, Spain
| | - T Muiño-Blanco
- Grupo BIOFITER, Departamento de Bioquímica y Biología Molecular y Celular, Facultad de Veterinaria, Instituto Universitario de Investigación en Ciencias Ambientales de Aragón (IUCA), Universidad de Zaragoza, Zaragoza, Spain
| | - R Pérez-Pé
- Grupo BIOFITER, Departamento de Bioquímica y Biología Molecular y Celular, Facultad de Veterinaria, Instituto Universitario de Investigación en Ciencias Ambientales de Aragón (IUCA), Universidad de Zaragoza, Zaragoza, Spain
| | - A Casao
- Grupo BIOFITER, Departamento de Bioquímica y Biología Molecular y Celular, Facultad de Veterinaria, Instituto Universitario de Investigación en Ciencias Ambientales de Aragón (IUCA), Universidad de Zaragoza, Zaragoza, Spain.
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Gimeno-Martos S, Miguel-Jiménez S, Casao A, Cebrián-Pérez JA, Muiño-Blanco T, Pérez-Pe R. Underlying molecular mechanism in the modulation of the ram sperm acrosome reaction by progesterone and 17β-estradiol. Anim Reprod Sci 2020; 221:106567. [PMID: 32861117 DOI: 10.1016/j.anireprosci.2020.106567] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Revised: 07/23/2020] [Accepted: 07/24/2020] [Indexed: 01/09/2023]
Abstract
Steroid hormones progesterone (P4) and 17β-estradiol (E2) not only have important functions in regulation of reproductive processes in mammals but also have direct effects on spermatozoa. There can be induction of the acrosome reaction in ram spermatozoa by P4 and E2 and, in the present study, there was further investigation of mechanisms underlying this effect. In a medium containing agents that increase cAMP, the presence of both P4 and E2 led to changes in the localization of proteins phosphorylated in tyrosine residues evaluated by indirect immunofluorescence. The inclusion of P4 at 1 μM in the media induced an increase in Ca2+i and mobilization in the area of the acrosome (Fluo-4 and Rhod-5 staining, respectively), an increase in ROS (H2DCFDA staining) and a substantial disruption of the acrosome (evaluated using RCA), while E2 did not have these effects. There were no effects on cAMP concentrations or PKA activity with inclusion of these hormones in the media. The inclusion of P4 at 100 pM in the media led to changes in values for sperm kinematic variables which could indicate there was an inhibition of the hyperactivation caused by agents that induce an increase in cAMP concentrations. In conclusion, results from the present study indicate that P4 and E2 promote mechanisms regulating the acrosome reaction in ram spermatozoa, however, these effects on mechanisms are different for the two hormones, and for E2, require further clarification.
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Affiliation(s)
- S Gimeno-Martos
- Department of Biochemistry and Molecular and Cell Biology, Institute of Environmental Sciences of Aragón (IUCA), School of Veterinary Medicine, University of Zaragoza, C/Miguel Servet 177, 50013, Zaragoza, Spain.
| | - S Miguel-Jiménez
- Department of Biochemistry and Molecular and Cell Biology, Institute of Environmental Sciences of Aragón (IUCA), School of Veterinary Medicine, University of Zaragoza, C/Miguel Servet 177, 50013, Zaragoza, Spain
| | - A Casao
- Department of Biochemistry and Molecular and Cell Biology, Institute of Environmental Sciences of Aragón (IUCA), School of Veterinary Medicine, University of Zaragoza, C/Miguel Servet 177, 50013, Zaragoza, Spain
| | - J A Cebrián-Pérez
- Department of Biochemistry and Molecular and Cell Biology, Institute of Environmental Sciences of Aragón (IUCA), School of Veterinary Medicine, University of Zaragoza, C/Miguel Servet 177, 50013, Zaragoza, Spain
| | - T Muiño-Blanco
- Department of Biochemistry and Molecular and Cell Biology, Institute of Environmental Sciences of Aragón (IUCA), School of Veterinary Medicine, University of Zaragoza, C/Miguel Servet 177, 50013, Zaragoza, Spain
| | - R Pérez-Pe
- Department of Biochemistry and Molecular and Cell Biology, Institute of Environmental Sciences of Aragón (IUCA), School of Veterinary Medicine, University of Zaragoza, C/Miguel Servet 177, 50013, Zaragoza, Spain
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8
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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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Sugiyama Y, Fujinoki M, Shibahara H. Effects of 5-hydroxytryptamine on spermatozoal hyperactivation and in vitro fertilization in mice. J Reprod Dev 2019; 65:541-550. [PMID: 31694987 PMCID: PMC6923157 DOI: 10.1262/jrd.2019-082] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
In this study, we examined the effects of 5-hydroxytryptamine (5-HT) on the motility and hyperactivation of mouse spermatozoa. In addition, we examined whether 5-HT increases the success of
in vitro fertilization (IVF) in mice. Interestingly, 5-HT and agonists of the 5-HT2, 5-HT3, 5-HT4, and 5-HT7 receptors
significantly increased the percentage of hyperactivated spermatozoa but did not affect the percentage of motile spermatozoa. Moreover, agonists of the 5-HT2, 5-HT3,
and 5-HT4 receptors significantly affected the velocities, linearity, straightness, wobbler coefficient, amplitude and/or frequency of spermatozoa. In particular, the improvement
of hyperactivation by 5-HT was strongly inhibited by antagonists of the receptors 5-HT4 and 5-HT7 and was completely inhibited by a mixture of the four 5-HT-receptor
antagonists. The increase in hyperactivation by the agonists was significantly inhibited by the corresponding 5-HT-receptor antagonist. Moreover, 5-HT significantly increased the percentage
of two-cell embryos. The increase in the IVF success rate by 5-HT was significantly inhibited by a 5-HT4-receptor antagonist. These results suggest that 5-HT increased
hyperactivation through the 5-HT receptors and increased the success of IVF in mice.
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Affiliation(s)
- Yukiko Sugiyama
- Department of Obstetrics and Gynecology, Hyogo College of Medicine, Hyogo 663-8501, Japan
| | - Masakatsu Fujinoki
- Department of Physiology, School of Medicine, Dokkyo Medical University, Tochigi 321-0293, Japan.,Laboratory Animal Research Center, Dokkyo Medical University, Tochigi 321-0293, Japan
| | - Hiroaki Shibahara
- Department of Obstetrics and Gynecology, Hyogo College of Medicine, Hyogo 663-8501, Japan
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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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11
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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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12
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Gimeno-Martos S, González-Arto M, Casao A, Gallego M, Cebrián-Pérez JA, Muiño-Blanco T, Pérez-Pé R. Steroid hormone receptors and direct effects of steroid hormones on ram spermatozoa. Reproduction 2017; 154:469-481. [DOI: 10.1530/rep-17-0177] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2017] [Revised: 06/30/2017] [Accepted: 07/14/2017] [Indexed: 01/26/2023]
Abstract
This study was based on the assumption that steroid hormones present in the female genital tract may have a rapid effect on ram spermatozoa by interaction with specific surface receptors. We demonstrate the presence of progesterone (PR) and estrogen (ER) receptors in ram spermatozoa, their localization changes duringin vitrocapacitation and the actions of progesterone (P4) and 17β-estradiol (E2) on ram sperm functionality. Immunolocalization assays revealed the presence of PR mainly at the equatorial region of ram spermatozoa. Western blot analyses showed three bands in ram sperm protein extracts of 40–45 kDa, compatible with those reported for PR in the human sperm membrane, and both classical estrogen receptors (66 kDa, ERα and 55 kDa, ERβ). ERα was located in the postacrosomal region of all the spermatozoa and ERβ on the apical region of 63.7% of the cells. The presence of ERβ was correlated with the percentage of non-capacitated spermatozoa evaluated by chlortetracycline staining (R = 0.848,P < 0.001). This significantly decreased afterin vitrocapacitation and nearly disappeared when acrosome reaction was induced. The addition of P4 and E2 beforein vitrocapacitation resulted in a higher (P < 0.001) acrosome-reacted sperm rate compared with the control (13.0%), noticeably greater after 3 h and when added to a high-cAMP medium (37.3% and 47.0% with E2 and P4, respectively). In conclusion, the results of this study demonstrate for the first time that ovine spermatozoa have progesterone and estrogen receptors and that both steroid hormones are related with the induction of the acrosome reaction.
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13
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Lamy J, Corbin E, Blache MC, Garanina AS, Uzbekov R, Mermillod P, Saint-Dizier M. Steroid hormones regulate sperm-oviduct interactions in the bovine. Reproduction 2017; 154:497-508. [PMID: 28729465 DOI: 10.1530/rep-17-0328] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2017] [Revised: 06/26/2017] [Accepted: 07/20/2017] [Indexed: 01/11/2023]
Abstract
After insemination in the cow, a sperm reservoir is formed within the oviducts, allowing the storage and then progressive release of spermatozoa toward the ovulated oocyte. In order to investigate the hormonal regulation of these events in vitro, the ovarian steroids 17β-estradiol (E2) and progesterone (P4) were added at various concentrations to monolayers of bovine oviduct epithelial cells (BOEC) before or during co-incubation with spermatozoa. Main findings demonstrate that (1) a 18-h pretreatment of BOEC with 100 pg/mL and 100 ng/mL of E2 decreased by 25% the ability of BOEC to bind spermatozoa after 10 min, and for the highest dose of E2, 60 min of co-incubation; (2) P4 at concentrations of 10, 100 and 1000 ng/mL induced the release within 60 min of 32-47% of bound spermatozoa from BOEC; this sperm-releasing effect was maintained after a 18-h pretreatment of BOEC with 100 pg/mL of E2; (3) E2 in concentrations above 100 pg/mL inhibited the releasing effect of P4 on bound sperm in a dose-dependent manner; (4) spermatozoa bound to BOEC, then released from BOEC by the action of P4-induced higher cleavage and blastocyst rates after in vitro fertilization than the control group. These results support the hypothesis that the dynamic changes in steroid hormones around the time of ovulation regulate the formation of the sperm reservoir and the timed delivery of capacitated spermatozoa to the site of fertilization.
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Affiliation(s)
- Julie Lamy
- Physiologie de la Reproduction et des Comportements (PRC)UMR85, INRA, CNRS, UFR, IFCE, Nouzilly, France
| | - Emilie Corbin
- Physiologie de la Reproduction et des Comportements (PRC)UMR85, INRA, CNRS, UFR, IFCE, Nouzilly, France
| | - Marie-Claire Blache
- Physiologie de la Reproduction et des Comportements (PRC)UMR85, INRA, CNRS, UFR, IFCE, Nouzilly, France
| | - Anastasiia S Garanina
- Université François Rabelais de ToursDépartement des Microscopies, Tours, France.,NUST MISiSLeninskiy prospekt 4, Moscow, Russia
| | - Rustem Uzbekov
- Université François Rabelais de ToursDépartement des Microscopies, Tours, France.,Faculty of Bioengineering and BioinformaticsMoscow State University, Moscow, Russia
| | - Pascal Mermillod
- Physiologie de la Reproduction et des Comportements (PRC)UMR85, INRA, CNRS, UFR, IFCE, Nouzilly, France
| | - Marie Saint-Dizier
- Physiologie de la Reproduction et des Comportements (PRC)UMR85, INRA, CNRS, UFR, IFCE, Nouzilly, France .,Université François Rabelais de ToursUFR Sciences et Techniques, Tours, France
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14
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Zanatta AP, Brouard V, Gautier C, Goncalves R, Bouraïma-Lelong H, Mena Barreto Silva FR, Delalande C. Interactions between oestrogen and 1α,25(OH) 2-vitamin D 3 signalling and their roles in spermatogenesis and spermatozoa functions. Basic Clin Androl 2017; 27:10. [PMID: 28491323 PMCID: PMC5421336 DOI: 10.1186/s12610-017-0053-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2016] [Accepted: 03/16/2017] [Indexed: 02/07/2023] Open
Abstract
Oestrogens and 1α,25(OH)2-vitamin D3 (1,25-D3) are steroids that can provide effects by binding to their receptors localised in the cytoplasm and in the nucleus or the plasma membrane respectively inducing genomic and non-genomic effects. As confirmed notably by invalidation of the genes, coding for their receptors as tested with mice with in vivo and in vitro treatments, oestrogens and 1,25-D3 are regulators of spermatogenesis. Moreover, some functions of ejaculated spermatozoa as viability, DNA integrity, motility, capacitation, acrosome reaction and fertilizing ability are targets for these hormones. The studies conducted on their mechanisms of action, even though not completely elicited, have allowed the demonstration of putative interactions between their signalling pathways that are worth examining more closely. The present review focuses on the elements regulated by oestrogens and 1,25-D3 in the testis and spermatozoa as well as the interactions between the signalling pathways of both hormones.
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Affiliation(s)
- Ana Paula Zanatta
- INRA, OeReCa, Normandie University, UNICAEN, 14000 Caen, France.,Biochemistry Department, Laboratory of Hormones & Signal Transduction, UFSC, Florianópolis, Brazil
| | - Vanessa Brouard
- INRA, OeReCa, Normandie University, UNICAEN, 14000 Caen, France
| | - Camille Gautier
- INRA, OeReCa, Normandie University, UNICAEN, 14000 Caen, France
| | - Renata Goncalves
- INRA, OeReCa, Normandie University, UNICAEN, 14000 Caen, France.,Biochemistry Department, Laboratory of Hormones & Signal Transduction, UFSC, Florianópolis, Brazil
| | | | | | - Christelle Delalande
- INRA, OeReCa, Normandie University, UNICAEN, 14000 Caen, France.,Laboratoire Œstrogènes, Reproduction, Cancer (OeReCa), EA 2608 USC INRA1377, Université de Caen Normandie, Esplanade de la Paix, CS 14032, 14032 CAEN cedex 5, France
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15
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Zou QX, Peng Z, Zhao Q, Chen HY, Cheng YM, Liu Q, He YQ, Weng SQ, Wang HF, Wang T, Zheng LP, Luo T. Diethylstilbestrol activates CatSper and disturbs progesterone actions in human spermatozoa. Hum Reprod 2016; 32:290-298. [PMID: 28031325 DOI: 10.1093/humrep/dew332] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2016] [Revised: 11/24/2016] [Accepted: 12/16/2016] [Indexed: 12/28/2022] Open
Abstract
STUDY QUESTION Is diethylstilbestrol (DES), a prototypical endocrine-disrupting chemical (EDC), able to induce physiological changes in human spermatozoa and affect progesterone actions? SUMMARY ANSWER DES promoted Ca2+ flux into human spermatozoa by activating the cation channel of sperm (CatSper) and suppressed progesterone-induced Ca2+ signaling, tyrosine phosphorylation and sperm functions. WHAT IS KNOWN ALREADY DES significantly impairs the male reproductive system both in fetal and postnatal exposure. Although various EDCs affect human spermatozoa in a non-genomic manner, the effect of DES on human spermatozoa remains unknown. STUDY DESIGN, SIZE, DURATION Sperm samples from normozoospermic donors were exposed in vitro to a range of DES concentrations with or without progesterone at 37°C in a 5% CO2 incubator to mimic the putative exposure to this toxicant in seminal plasma and the female reproductive tract fluids. The incubation time varied according to the experimental protocols. All experiments were repeated at least five times using different individual sperm samples. PARTICIPANTS/MATERIALS, SETTING, METHODS Human sperm intracellular calcium concentrations ([Ca2+]i) were monitored with a multimode plate reader following sperm loading with Ca2+ indicator Fluo-4 AM, and the whole-cell patch-clamp technique was performed to record CatSper and alkalinization-activated sperm K+ channel (KSper) currents. Sperm viability and motility parameters were assessed by an eosin-nigrosin staining kit and a computer-assisted semen analysis system, respectively. The ability of sperm to penetrate into viscous media was examined by penetration into 1% methylcellulose. The sperm acrosome reaction was measured using chlortetracycline staining. The level of tyrosine phosphorylation was determined by western blot assay. MAIN RESULTS AND THE ROLE OF CHANCE DES exposure rapidly increased human sperm [Ca2+]i dose dependently and even at an environmentally relevant concentration (100 pM). The elevation of [Ca2+]i was derived from extracellular Ca2+ influx and mainly mediated by CatSper. Although DES did not affect sperm viability, motility, penetration into viscous media, tyrosine phosphorylation or the acrosome reaction, it suppressed progesterone-stimulated Ca2+ signaling and tyrosine phosphorylation. Consequently, DES (1-100 μM) significantly inhibited progesterone-induced human sperm penetration into viscous media and acrosome reaction. LARGE SCALE DATA N/A. LIMITATIONS, REASONS FOR CAUTION Although DES has been shown to disturb progesterone actions on human spermatozoa, this study was performed in vitro, and caution must be taken when extrapolating the results in practical applications. WIDER IMPLICATIONS OF THE FINDINGS The present study revealed that DES interfered with progesterone-stimulated Ca2+ signaling and tyrosine phosphorylation, ultimately inhibited progesterone-induced human sperm functions and, thereby, might impair sperm fertility. The non-genomic manner in which DES disturbs progesterone actions may be a potential mechanism for some estrogenic endocrine disruptors to affect human sperm function. STUDY FUNDING/COMPETING INTERESTS National Natural Science Foundation of China (No. 31400996); Natural Science Foundation of Jiangxi, China (No. 20161BAB204167 and No. 20142BAB215050); open project of National Population and Family Planning Key Laboratory of Contraceptives and Devices Research (No. 2016KF07) to T. Luo; National Natural Science Foundation of China (No. 81300539) to L.P. Zheng. The authors have no conflicts of interest to declare.
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Affiliation(s)
- Qian-Xing Zou
- 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
| | - Qing Zhao
- Institute of Life Science and School of Life Science, Nanchang University, Nanchang, Jiangxi 330031, PR China
| | - Hou-Yang Chen
- Reproductive Medical Center, Jiangxi Provincial Maternal and Child Health Hospital, Nanchang, Jiangxi 330006, PR China
| | - Yi-Min Cheng
- Institute of Life Science and School of Life Science, Nanchang University, Nanchang, Jiangxi 330031, PR China
| | - Qing Liu
- Institute of Life Science and School of Life Science, Nanchang University, Nanchang, Jiangxi 330031, PR China
| | - Yuan-Qiao He
- Institute of Life Science and School of Life Science, Nanchang University, Nanchang, Jiangxi 330031, PR China
| | - Shi-Qi Weng
- Institute of Life Science and School of Life Science, Nanchang University, Nanchang, Jiangxi 330031, PR China
| | - Hua-Feng Wang
- Institute of Life Science and School of Life Science, Nanchang University, Nanchang, Jiangxi 330031, PR China
| | - Tao Wang
- Institute of Life Science and School of Life Science, Nanchang University, Nanchang, Jiangxi 330031, PR China
| | - Li-Ping Zheng
- 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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16
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Fujinoki M, Takei GL. γ-Aminobutyric acid suppresses enhancement of hamster sperm hyperactivation by 5-hydroxytryptamine. J Reprod Dev 2016; 63:67-74. [PMID: 27773888 PMCID: PMC5320432 DOI: 10.1262/jrd.2016-091] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Sperm hyperactivation is regulated by hormones present in the oviduct. In hamsters, 5-hydroxytryptamine (5HT) enhances hyperactivation associated with the
5HT2 receptor and 5HT4 receptor, while 17β-estradiol (E2) and γ-aminobutyric acid (GABA) suppress the association of the
estrogen receptor and GABAA receptor, respectively. In the present study, we examined the regulatory interactions among 5HT, GABA, and E2
in the regulation of hamster sperm hyperactivation. When sperm were exposed to E2 prior to 5HT exposure, E2 did not affect 5HT-enhanced
hyperactivation. In contrast, GABA partially suppressed 5HT-enhanced hyperactivation when sperm were exposed to GABA prior to 5HT. GABA suppressed 5HT-enhanced
hyperactivation associated with the 5HT2 receptor although it did not suppress 5HT-enhanced hyperactivation associated with the 5HT4
receptor. These results demonstrate that hamster sperm hyperactivation is regulated by an interaction between the 5HT2 receptor-mediated action of
5HT and GABA.
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Affiliation(s)
- Masakatsu Fujinoki
- Department of Physiology, School of Medicine, Dokkyo Medical University, Tochigi 321-0293, Japan
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17
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López-Torres AS, Chirinos M. Modulation of Human Sperm Capacitation by Progesterone, Estradiol, and Luteinizing Hormone. Reprod Sci 2016; 24:193-201. [PMID: 27071965 DOI: 10.1177/1933719116641766] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Sperm residency in female reproductive tract is essential to undergo functional changes that allow the cell to encounter the oocyte and fertilize it. Those changes, known as capacitation, are modulated by molecules located in the uterotubal surface and fluids. During the fertile window, there is a notable increase in some reproductive hormones such as progesterone, estradiol, and luteinizing hormone in the female reproductive tract, so spermatozoa are exposed to these hormones in an environment that must favor gamete encountering and fusion. This spatiotemporal coincidence suggests that they are suitable candidates to modulate sperm function in order to synchronize the events that ultimately allow the success of fertilization. The presence of receptors for these hormones in the human sperm has been described, but their physiological relevance and mechanisms of action have been either subject of controversy or not properly investigated. This review intends to summarize the evidence that support the participation of these hormones in the regulation of sperm capacitation.
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Affiliation(s)
- Aideé Saray López-Torres
- 1 Departamento de Biología de la Reproducción, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, México DF, Mexico.,2 Posgrado en Ciencias Biológicas, Universidad Nacional Autónoma de México, Coyoacán, México, DF, Mexico
| | - Mayel Chirinos
- 1 Departamento de Biología de la Reproducción, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, México DF, Mexico
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18
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Takei GL, Fujinoki M. Regulation of hamster sperm hyperactivation by extracellular Na+. Reproduction 2016; 151:589-603. [DOI: 10.1530/rep-15-0367] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2015] [Accepted: 03/07/2016] [Indexed: 12/29/2022]
Abstract
Abstract
Mammalian sperm motility has to be hyperactivated to be fertilization-competent. Hyperactivation is regulated by extracellular environment. Osmolality of mammalian semen is higher than that in female reproductive tract; however, the effect of them on hyperactivation has not been investigated. So we investigated the effect of osmotic environment on hyperactivation using hamster spermatozoa at first. Increase in the osmolality of the media (∼370 mOsm) by increasing the concentration of NaCl (∼150 mmol/L) caused the delay of the expression of hyperactivation. When NaCl concentration varied in the same range (75–150 mmol/L) whereas the osmolality was fixed at 370 mOsm by adding mannitol, the delay of hyperactivation occurred dependent on NaCl concentration. Increase in NaCl concentration also caused suppression of curvilinear velocity, bend angle, and sliding velocity of the flagellum at the onset of incubation, suggesting that NaCl concentration affect both activation and hyperactivation in hamster spermatozoa. Hamster sperm intracellular Ca2+ concentration decreased as extracellular NaCl concentration increased, whereas membrane potential and intracellular pH were unaffected by extracellular NaCl concentration. SN-6 and SEA0400, inhibitors of Na+-Ca2+ exchanger (NCX), increased intracellular Ca2+ and accelerated hyperactivation in the presence of 150 mmol/L NaCl. Tyrosine phosphorylation on fibrous sheath proteins was unaffected by extracellular NaCl concentration. These results suggest that extracellular Na+ suppresses hamster sperm hyperactivation by reducing intracellular Ca2+ via an action of NCX in a tyrosine phosphorylation-independent manner. It seems that the removal of suppression by extracellular Na+ leads to the expression of hyperactivated motility.
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19
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Fujinoki M, Takei GL, Kon H. Non-genomic regulation and disruption of spermatozoal in vitro hyperactivation by oviductal hormones. J Physiol Sci 2016; 66:207-12. [PMID: 26541156 PMCID: PMC10717772 DOI: 10.1007/s12576-015-0419-y] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2015] [Accepted: 10/14/2015] [Indexed: 01/12/2023]
Abstract
During capacitation, motility of mammalian spermatozoon is changed from a state of "activation" to "hyperactivation." Recently, it has been suggested that some hormones present in the oviduct are involved in the regulation of this hyperactivation in vitro. Progesterone, melatonin, and serotonin enhance hyperactivation through specific membrane receptors, and 17β-estradiol suppresses this enhancement by progesterone and melatonin via a membrane estrogen receptor. Moreover, γ-aminobutyric acid suppresses progesterone-enhanced hyperactivation through the γ-aminobutyric acid receptor. These hormones dose-dependently affect hyperactivation. Although the complete signaling pathway is not clear, progesterone activates phospholipase C and protein kinases and enhances tyrosine phosphorylation. Moreover, tyrosine phosphorylation is suppressed by 17β-estradiol. This regulation of spermatozoal hyperactivation by steroids is also disrupted by diethylstilbestrol. The in vitro experiments reviewed here suggest that mammalian spermatozoa are able to respond to effects of oviductal hormones. We therefore assume that the enhancement of spermatozoal hyperactivation is also regulated by oviductal hormones in vivo.
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Affiliation(s)
- Masakatsu Fujinoki
- Department of Physiology, School of Medicine, Dokkyo Medical University, Mibu, Tochigi, 321-0293, Japan.
| | - Gen L Takei
- Department of Physiology, School of Medicine, Dokkyo Medical University, Mibu, Tochigi, 321-0293, Japan
| | - Hiroe Kon
- Laboratory Animal Research Center, School of Medicine, Dokkyo Medical University, Mibu, Tochigi, 321-0293, Japan
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20
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Cerny KL, Garrett E, Walton AJ, Anderson LH, Bridges PJ. A transcriptomal analysis of bovine oviductal epithelial cells collected during the follicular phase versus the luteal phase of the estrous cycle. Reprod Biol Endocrinol 2015; 13:84. [PMID: 26242217 PMCID: PMC4524109 DOI: 10.1186/s12958-015-0077-1] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/11/2014] [Accepted: 07/13/2015] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND Reproductive success depends on a functional oviduct for gamete storage, maturation, fertilization, and early embryonic development. The ovarian-derived steroids estrogen and progesterone are key regulators of oviductal function. The objective of this study was to investigate luteal and follicular phase-specific oviductal epithelial cell function by using microarray-based transcriptional profiling, to increase our understanding of mRNAs regulating epithelial cell processes, and to identify novel genes and biochemical pathways that may be found to affect fertility in the future. METHODS Six normally cycling Angus heifers were assigned to either luteal phase (LP, n = 3) or follicular phase (FP, n = 3) treatment groups. Heifers in the LP group were killed between day 11 and 12 after estrus. Heifers in the FP group were treated with 25 mg PGF2α (Lutalyse, Pfizer, NY) at 8 pm on day 6 after estrus and killed 36 h later. Transcriptional profiling by microarray and confirmation of selected mRNAs by real-time RT-PCR analyses was performed using total RNA from epithelial cells isolated from sections of the ampulla and isthmus collected from LP and FP treatment groups. Differentially expressed genes were subjected to gene ontology classification and bioinformatic pathway analyses. RESULTS Statistical one-way ANOVA using Benjamini-hochberg multiple testing correction for false discovery rate (FDR) and pairwise comparison of epithelial cells in the ampulla of FP versus LP groups revealed 972 and 597 transcripts up- and down-regulated, respectively (P < 0.05). Within epithelial cells of the isthmus in FP versus LP groups, 946 and 817 transcripts were up- and down-regulated, respectively (P < 0.05). Up-regulated genes from both ampulla and isthmus were found to be largely involved in cholesterol biosynthesis and cell cycle pathways, while down-regulated genes were found in numerous inflammatory response pathways. CONCLUSIONS Microarray-based transcriptional profiling revealed phase of the cycle-dependent changes in the expression of mRNA within the epithelium of the oviducts' ampulla and isthmus.
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Affiliation(s)
- K L Cerny
- Department of Animal and Food Sciences, University of Kentucky, Lexington, 40546, KY, USA.
| | - E Garrett
- Department of Animal and Food Sciences, University of Kentucky, Lexington, 40546, KY, USA.
| | - A J Walton
- Department of Animal and Food Sciences, University of Kentucky, Lexington, 40546, KY, USA.
| | - L H Anderson
- Department of Animal and Food Sciences, University of Kentucky, Lexington, 40546, KY, USA.
| | - P J Bridges
- Department of Animal and Food Sciences, University of Kentucky, Lexington, 40546, KY, USA.
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21
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Fujinoki M, Takei GL. Estrogen suppresses melatonin-enhanced hyperactivation of hamster spermatozoa. J Reprod Dev 2015; 61:287-95. [PMID: 25959801 PMCID: PMC4547986 DOI: 10.1262/jrd.2014-116] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
Hamster sperm hyperactivation is enhanced by progesterone, and this progesterone-enhanced hyperactivation is suppressed by 17β-estradiol (17βE2) and γ-aminobutyric acid (GABA). Although it has been indicated that melatonin also enhances hyperactivation, it is unknown whether melatonin-enhanced hyperactivation is also suppressed by 17βE2 and GABA. In the present study, melatonin-enhanced hyperactivation was significantly suppressed by 17βE2 but not by GABA. Moreover, suppression of melatonin-enhanced hyperactivation by 17βE2 occurred through non-genomic regulation via the estrogen receptor (ER). These results suggest that enhancement of hyperactivation is regulated by melatonin and 17βE2 through non-genomic regulation.
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Affiliation(s)
- Masakatsu Fujinoki
- Department of Physiology, Dokkyo Medical University, Tochigi 321-0293, Japan
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22
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Kon H, Takei GL, Fujinoki M, Shinoda M. Suppression of progesterone-enhanced hyperactivation in hamster spermatozoa by γ-aminobutyric acid. J Reprod Dev 2014; 60:202-9. [PMID: 24614320 PMCID: PMC4085384 DOI: 10.1262/jrd.2013-076] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
It has been recently shown that mammalian spermatozoa were hyperactivated by steroids, amines and amino acids. In the present study, we investigated whether hyperactivation of hamster sperm is regulated by progesterone (P) and γ-aminobutyric acid (GABA). Although sperm hyperactivation was enhanced by P, GABA significantly suppressed P-enhanced hyperactivation in a dose-dependent manner. Suppression of P-enhanced hyperactivation by GABA was significantly inhibited by an antagonist of the GABAA receptor (bicuculline). Moreover, P bound to the sperm head, and this binding was decreased by GABA. Because the concentrations of GABA and P change in association with the estrous cycle, these results suggest that GABA and P competitively regulate the enhancement of hyperactivation through the GABAA receptor.
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Affiliation(s)
- Hiroe Kon
- Laboratory Animal Research Center, Dokkyo Medical University, Tochigi 321-0293, Japan
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23
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Fujinoki M. Regulation and disruption of hamster sperm hyperactivation by progesterone, 17β-estradiol and diethylstilbestrol. Reprod Med Biol 2014; 13:143-152. [PMID: 29699158 DOI: 10.1007/s12522-013-0175-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2013] [Accepted: 12/12/2013] [Indexed: 11/25/2022] Open
Abstract
Purpose Hyperactivation of hamster sperm is dose-dependently enhanced by progesterone (P) and 17β-estradiol (E). In the first part of the present study, enhancement of hyperactivation in response to the concentrations of P and E was examined in detail and in the second part, it was examined whether enhancement of hyperactivation by P and E was disrupted by diethylstilbestrol (DES). Methods Hamster spermatozoa were hyperactivated by incubation in modified Tyrode's albumin lactate pyruvate medium with P, E and/or DES. After spermatozoa were recorded using a video-microscope, observations were quantified by manually counting the numbers of total, motile and hyperactivated spermatozoa. Results Hyperactivation was enhanced in response to the concentrations of P and E. When spermatozoa were exposed to DES with E, moreover, DES significantly and strongly suppressed P-enhanced hyperactivation by accelerating the effect of E, but DES itself only weakly suppressed P-enhanced hyperactivation. Conclusions Enhancement of hyperactivation was regulated by the concentrations of P and E, suggesting that in vivo hamster spermatozoa are hyperactivated through "monitoring" these concentrations in the oviduct. DES in combination with E suppressed P-enhanced hyperactivation, suggesting that DES significantly disrupts hyperactivation by acting as an accelerator of the effect of E.
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Affiliation(s)
- Masakatsu Fujinoki
- Department of Physiology, School of Medicine Dokkyo Medical University 321-0293 Mibu Tochigi Japan
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24
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Leung KW, Wong AS. Ginseng and male reproductive function. SPERMATOGENESIS 2013; 3:e26391. [PMID: 24381805 PMCID: PMC3861174 DOI: 10.4161/spmg.26391] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/04/2013] [Accepted: 09/05/2013] [Indexed: 01/15/2023]
Abstract
Ginseng is often referred to as the King of all herbs, and is found to be a promising agent to improve general well-being. Ginseng has also been reputed as an aphrodisiac, and is used to treat sexual dysfunction as well as to enhance sexual behavior in traditional Chinese medical practices. Data from animal studies have shown a positive correlation among ginseng, libido, and copulatory performances, and these effects have been confirmed in case-control studies in human. In addition, ginseng is found to improve the sperm quality and count of healthy individuals as well as patients with treatment-related infertility. These actions are mostly attributed to ginsenosides, the major pharmacological active components of ginseng. This review compiles the current knowledge about the multifaceted effects of ginseng on male reproductive function, and also focuses on its mechanisms of action that may represent novel therapeutic strategies for the treatment of male reproductive diseases or disorders.
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Affiliation(s)
- Kar Wah Leung
- School of Biological Sciences; University of Hong Kong; Hong Kong, PR China
| | - Alice St Wong
- School of Biological Sciences; University of Hong Kong; Hong Kong, PR China
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Fujinoki M. Progesterone-enhanced sperm hyperactivation through IP 3-PKC and PKA signals. Reprod Med Biol 2012; 12:27-33. [PMID: 29699127 DOI: 10.1007/s12522-012-0137-6] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2012] [Accepted: 08/29/2012] [Indexed: 01/08/2023] Open
Abstract
Propose The present study examined whether regulation of progesterone-enhanced hyperactivation of spermatozoa is associated with the production of inositol 1,4,5-trisphosphate (IP3) and diacylglycerol (DAG) by phospholipase C (PLC) and cyclic adenosine monophosphate (cAMP) by adenylate cyclase (AC), as well as activation of protein kinase C (PKC) and protein kinase A (PKA). Methods Hamster spermatozoa were hyperactivated by incubation for 4 h in modified Tyrode's albumin lactate pyruvate (mTALP) medium. In order to examine the effects of IP3 receptor (IP3R), PKC and PKA on progesterone-enhanced hyperactivation, their inhibitors (xestospongin C, bisindolylmaleimide 1 and H-89) were used. Results Progesterone-enhanced hyperactivation was significantly suppressed by the inhibitors of IP3R, PKC and PKA. Conclusions The results suggest that progesterone-enhanced sperm hyperactivation occurs through two signal pathways. One is an intracellular Ca2+ signal through production of IP3 and DAG by PLC, binding of IP3 to IP3R and activation of PKC by DAG and Ca2+. The other is a cAMP-PKA signal through production of cAMP by AC and activation of PKA by cAMP.
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Affiliation(s)
- Masakatsu Fujinoki
- Department of Physiology, School of Medicine Dokkyo Medical University 321-0293 Mibu Tochigi Japan
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Mohri H, Inaba K, Ishijima S, Baba SA. Tubulin-dynein system in flagellar and ciliary movement. PROCEEDINGS OF THE JAPAN ACADEMY. SERIES B, PHYSICAL AND BIOLOGICAL SCIENCES 2012; 88:397-415. [PMID: 23060230 PMCID: PMC3491082 DOI: 10.2183/pjab.88.397] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/25/2012] [Accepted: 08/22/2012] [Indexed: 06/01/2023]
Abstract
Eukaryotic flagella and cilia have attracted the attention of many researchers over the last century, since they are highly arranged organelles and show sophisticated bending movements. Two important cytoskeletal and motor proteins, tubulin and dynein, were first found and described in flagella and cilia. Half a century has passed since the discovery of these two proteins, and much information has been accumulated on their molecular structures and their roles in the mechanism of microtubule sliding, as well as on the architecture, the mechanism of bending movement and the regulation and signal transduction in flagella and cilia. Historical background and the recent advance in this field are described.
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Abstract
The effects of serotonin on reproductive function were examined using hamster spermatozoa. When serotonin at concentrations from 1 fmol/l to 1 μmol/l was added to modified Tyrode's albumin lactate pyruvate (mTALP) medium, hyperactivation was significantly enhanced. Agonists and antagonists of 5-hydroxytryptamine hydrochloride (5-HT) receptors (5-HT(2) and 5-HT(4) receptors) were added to the medium. Both 5-HT(2) and 5-HT(4) receptor agonists significantly enhanced hyperactivation, although the effect was greater than the former. However, both 5-HT(2) and 5-HT(4) receptor antagonists significantly suppressed serotonin-enhanced hyperactivation, with the former suppressing stimulation by a lower concentration of serotonin than the latter. These results indicate that serotonin enhances hyperactivation via 5-HT(2) and/or 5-HT(4) receptors in a dose-dependent manner.
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Affiliation(s)
- Masakatsu Fujinoki
- Department of Physiology, School of Medicine, Dokkyo Medical University, Mibu, Tochigi 321-0293, Japan.
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