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Chen T, Zhou Y, Liu X, Liu Y, Yuan J, Wang Z. Adenylyl cyclase 3 deficiency results in dysfunction of blood-testis barrier during mouse spermiogenesis. Theriogenology 2021; 180:40-52. [PMID: 34953349 DOI: 10.1016/j.theriogenology.2021.12.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2021] [Revised: 12/12/2021] [Accepted: 12/15/2021] [Indexed: 10/19/2022]
Abstract
Human infertility has become a global medical and social health problem. Mice deficient in type 3 adenylyl cyclase (AC3), a key enzyme that synthesizes cyclic adenosine monophosphate (cAMP), develop male infertility, although the underlying molecular mechanisms remain unknown. We performed a label-free quantitative (LFQ) proteomics analyses to identify testicular differentially expressed proteins (DEPs) and their respective biological processes. Furthermore, histological examination demonstrated that AC3 deficiency in mice led to mild impairment of spermatogenesis, including the thinning of seminiferous epithelium and local lesions in the testis. We further identified that the integrity of the blood-testis barrier (BTB) was impaired in AC3 knockout (AC3-/-) mice accompanied with the reduction in the expression of tight junctions (TJs) and ectoplasmic specialization (ESs)-related proteins. In addition, the deletion of AC3 in mice also reduced the germ cell proliferation, increased apoptosis, and decreased lipid deposition in the seminiferous tubules. Collectively, our results revealed a role of AC3 in regulating the BTB integrity during spermatogenesis. Thus, our findings provide new perspectives for future research in male infertility.
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Affiliation(s)
- Tingrong Chen
- College of Life Sciences, Institute of Life Science and Green Development, Hebei University, Baoding, 071002, Hebei, PR China
| | - Yanfen Zhou
- College of Life Sciences, Institute of Life Science and Green Development, Hebei University, Baoding, 071002, Hebei, PR China
| | - Xinxia Liu
- School of Basic Medical Sciences, Hebei University, Baoding, 071030, Hebei, PR China
| | - Yuxin Liu
- School of Basic Medical Sciences, Hebei University, Baoding, 071030, Hebei, PR China
| | - Junkai Yuan
- School of Basic Medical Sciences, Hebei University, Baoding, 071030, Hebei, PR China
| | - Zhenshan Wang
- College of Life Sciences, Institute of Life Science and Green Development, Hebei University, Baoding, 071002, Hebei, PR China.
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2
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Souza APB, Lopes TN, da Silva AFT, Santi L, Beys-da-Silva WO, Yates JR, Bustamante-Filho IC. Changes in porcine cauda epididymal fluid proteome by disrupting the HPT axis: Unveiling potential mechanisms of male infertility. Mol Reprod Dev 2020; 87:952-965. [PMID: 32749760 DOI: 10.1002/mrd.23408] [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: 09/25/2019] [Revised: 02/23/2020] [Accepted: 07/16/2020] [Indexed: 12/14/2022]
Abstract
Male infertility or subfertility is frequently associated with disruption of the hypothalamic-pituitary-testis axis events, like secondary hypogonadism. However, little is known how this condition affects the proteomic composition of the epididymal fluid. In the present study, we evaluated the proteomic changes in the cauda epididymal fluid (CEF) in a swine model of secondary hypogonadism induced by anti-GnRH immunization using multidimensional protein identification technology. Seven hundred and eighteen proteins were identified in both GnRH-immunized and control groups. GnRH immunization doubled the number of proteins in the CEF, with 417 proteins being found exclusively in samples from GnRH-immunized boars. CEF from GnRH-immunized boars presented an increase in the number of proteins related to cellular and metabolic processes, with affinity to organic cyclic compounds, small molecules, and heterocyclic compounds, as well changed the enzymatic profile of the CEF. Also, a significant increase in the number of proteins associated to the ubiquitin-proteasome system was identified in CEF from GnRH-immunized animals. These results bring strong evidence of the impact of secondary hypogonadism on the epididymal environment, which is responsible for sperm maturation and storage prior ejaculation. Finally, the differently expressed proteins in the CEF are putative seminal biomarkers for testicular and epididymal disorders caused by secondary hypogonadism.
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Affiliation(s)
- Ana P B Souza
- Laboratório de Biotecnologia, Universidade do Vale do Taquari-Univates, Lajeado, Rio Grande do Sul, Brazil
| | - Tayná N Lopes
- Laboratório de Biotecnologia, Universidade do Vale do Taquari-Univates, Lajeado, Rio Grande do Sul, Brazil
| | - Anna F T da Silva
- Laboratório de Biotecnologia, Universidade do Vale do Taquari-Univates, Lajeado, Rio Grande do Sul, Brazil
| | - Lucélia Santi
- Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Walter O Beys-da-Silva
- Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - John R Yates
- Department of Molecular Medicine, Scripps Research, La Jolla, California
| | - Ivan C Bustamante-Filho
- Laboratório de Biotecnologia, Universidade do Vale do Taquari-Univates, Lajeado, Rio Grande do Sul, Brazil
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3
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Shpakov AO, Derkach KV. Functional role of membrane-bound adenylyl cyclases and coupled to them receptors and G-proteins in regulation of fertility of spermatozoa. J EVOL BIOCHEM PHYS+ 2014. [DOI: 10.1134/s0022093014040024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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4
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Shiba K, Inaba K. Distinct roles of soluble and transmembrane adenylyl cyclases in the regulation of flagellar motility in Ciona sperm. Int J Mol Sci 2014; 15:13192-208. [PMID: 25073090 PMCID: PMC4159788 DOI: 10.3390/ijms150813192] [Citation(s) in RCA: 13] [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: 04/22/2014] [Revised: 05/06/2014] [Accepted: 07/11/2014] [Indexed: 12/31/2022] Open
Abstract
Adenylyl cyclase (AC) is a key enzyme that synthesizes cyclic AMP (cAMP) at the onset of the signaling pathway to activate sperm motility. Here, we showed that both transmembrane AC (tmAC) and soluble AC (sAC) are distinctly involved in the regulation of sperm motility in the ascidian Ciona intestinalis. A tmAC inhibitor blocked both cAMP synthesis and the activation of sperm motility induced by the egg factor sperm activating and attracting factor (SAAF), as well as those induced by theophylline, an inhibitor of phoshodiesterase. It also significantly inhibited cAMP-dependent phosphorylation of a set of proteins at motility activation. On the other hand, a sAC inhibitor does not affect on SAAF-induced transient increase of cAMP, motility activation or protein phosphorylation, but it reduced swimming velocity to half in theophylline-induced sperm. A sAC inhibitor KH-7 induced circular swimming trajectory with smaller diameter and significantly suppressed chemotaxis of sperm to SAAF. These results suggest that tmAC is involved in the basic mechanism for motility activation through cAMP-dependent protein phosphorylation, whereas sAC plays distinct roles in increase of flagellar beat frequency and in the Ca2+-dependent chemotactic movement of sperm.
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Affiliation(s)
- Kogiku Shiba
- Shimoda Marine Research Center, University of Tsukuba, Shimoda 5-10-1, Shizuoka 415-0025, Japan.
| | - Kazuo Inaba
- Shimoda Marine Research Center, University of Tsukuba, Shimoda 5-10-1, Shizuoka 415-0025, Japan.
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5
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Breininger E, Cetica P, Beconi M. Capacitation inducers act through diverse intracellular mechanisms in cryopreserved bovine sperm. Theriogenology 2010; 74:1036-49. [DOI: 10.1016/j.theriogenology.2010.04.034] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2009] [Revised: 04/29/2010] [Accepted: 04/30/2010] [Indexed: 11/24/2022]
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6
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Chiu PCN, Liao S, Lam KKW, Tang F, Ho JCM, Ho PC, O WS, Yao YQ, Yeung WSB. Adrenomedullin regulates sperm motility and oviductal ciliary beat via cyclic adenosine 5'-monophosphate/protein kinase A and nitric oxide. Endocrinology 2010; 151:3336-47. [PMID: 20444935 DOI: 10.1210/en.2010-0077] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Cilium and flagellum beating are important in reproduction and defects in their motion are associated with ectopic pregnancy and infertility. Adrenomedullin (ADM) is a polypeptide present in the reproductive system. This report demonstrates a novel action of ADM in enhancing the flagellar/ciliary beating of human spermatozoa and rat oviductal ciliated cells. At the concentration found in the seminal plasma, it increases the progressive motility of spermatozoa. ADM binds to its classical receptor, calcitonin receptor-like receptor/receptor activity-modifying protein complex on spermatozoa. ADM treatment increases the protein kinase A activities, the cyclic adenosine monophosphate, and nitric oxide levels of spermatozoa and oviductal cells. Pharmacological activators and inhibitors confirmed that the ADM-induced flagella/ciliary beating was protein kinase A dependent. Whereas nitric oxide donors had no effect on sperm motility, they potentiated the motility-inducing action of protein kinase A activators, demonstrating for the first time the synergistic action of nitric oxide and protein kinase A signaling in flagellar/ciliary beating. The ADM-induced motility enhancement effect in spermatozoa also depended on the up-regulation of intracellular calcium, a known key regulator of sperm motility and ciliary beating. In conclusion, ADM is a common activator of flagellar/ciliary beating. The study provides a physiological basis on possible use of ADM as a fertility regulation drug.
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Affiliation(s)
- Philip C N Chiu
- Department of Obstetrics and Gynaecology, Li Ka Shing Faculty of Medicine, University of Hong Kong, Queen Mary Hospital, Hong Kong, China
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7
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Pierre S, Eschenhagen T, Geisslinger G, Scholich K. Capturing adenylyl cyclases as potential drug targets. Nat Rev Drug Discov 2009; 8:321-35. [PMID: 19337273 DOI: 10.1038/nrd2827] [Citation(s) in RCA: 169] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Cyclic AMP (cAMP) is an important intracellular signalling mediator. It is generated in mammals by nine membrane-bound and one soluble adenylyl cyclases (ACs), each with distinct regulation and expression patterns. Although many drugs inhibit or stimulate AC activity through the respective upstream G-protein coupled receptors (for example, opioid or beta-adrenergic receptors), ACs themselves have not been major drug targets. Over the past decade studies on the physiological functions of the different mammalian AC isoforms as well as advances in the development of isoform-selective AC inhibitors and activators suggest that ACs could be useful drug targets. Here we discuss the therapeutic potential of isoform-selective compounds in various clinical settings, including neuropathic pain, neurodegenerative disorders, congestive heart failure, asthma and male contraception.
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Affiliation(s)
- Sandra Pierre
- Pharmazentrum Frankfurt, ZAFES, Institut für Klinische Pharmakologie, Klinikum der Goethe-Universität Frankfurt, Theodor-Stern-Kai 7, 60590 Frankfurt, Germany
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8
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Muratori M, Luconi M, Marchiani S, Forti G, Baldi E. Molecular markers of human sperm functions. ACTA ACUST UNITED AC 2009; 32:25-45. [DOI: 10.1111/j.1365-2605.2008.00875.x] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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9
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Borg N, Holland M. The effect of glycosaminoglycans on rat gametes in vitro and the associated signal pathway. Reproduction 2008; 135:311-9. [DOI: 10.1530/rep-07-0267] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The effects of adding the extracellular glycosaminoglycans (GAGs), hyaluronic acid (HA) and chondroitin sulphate (CS) to ratin vitrofertilisation (IVF) media were assessed. Metaphase II (MII) oocytes were also incubated in GAG-supplemented modified rat 1-cell embryo culture medium (mR1ECM+BSA) for 3 days. Cytoplasmic fragmentation was significantly reduced in mR1ECM+BSA with HA (39.0–48.0%) compared with the control (82.0%). In IVF experiments, neither HA (8.0–30.8%) nor CS (9.7–42.5%) improved fertilisation rates compared with controls fertilised in M16 (47.2%) or enriched Krebs–Ringer bicarbonate solution (61.5%). RT-PCR and Western blot were used to probe for CD44 mRNA and protein in Sprague–Dawley gametes and cumulus cells. CD44 was identified in cumulus cells, suggesting a role for oocyte maturation and cumulus expansion. The CD44 protein was also present on caudal epididymal spermatozoa that were highly stimulated by CSin vitroimplicating a role in fertilisation for CS and CD44.
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10
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Affiliation(s)
- U. Benjamin Kaupp
- Forschungszentrum Jülich, Institut für Neurowissenschaften und Biophysik 1, D-52425 Jülich, Germany;
| | - Nachiket D. Kashikar
- Forschungszentrum Jülich, Institut für Neurowissenschaften und Biophysik 1, D-52425 Jülich, Germany;
| | - Ingo Weyand
- Forschungszentrum Jülich, Institut für Neurowissenschaften und Biophysik 1, D-52425 Jülich, Germany;
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11
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Oberholzer M, Bregy P, Marti G, Minca M, Peier M, Seebeck T. Trypanosomes and mammalian sperm: one of a kind? Trends Parasitol 2006; 23:71-7. [PMID: 17174157 DOI: 10.1016/j.pt.2006.12.002] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2006] [Revised: 11/02/2006] [Accepted: 12/06/2006] [Indexed: 01/20/2023]
Abstract
Flagellar-mediated motility is an indispensable function for cell types as evolutionarily distant as mammalian sperm and kinetoplastid parasites, a large group of flagellated protozoa that includes several important human pathogens. Despite the obvious importance of flagellar motility, little is known about the signalling processes that direct the frequency and wave shape of the flagellar beat, or those that provide the motile cell with the necessary environmental cues that enable it to aim its movement. Similarly, the energetics of the flagellar beat and the problem of a sufficient ATP supply along the entire length of the beating flagellum remain to be explored. Recent proteome projects studying the flagella of mammalian sperm and kinetoplastid parasites have provided important information and have indicated a surprising degree of similarities between the flagella of these two cell types.
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Affiliation(s)
- Michael Oberholzer
- Institute of Cell Biology, University of Bern, CH-3012 Bern, Switzerland
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12
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Xie F, Garcia MA, Carlson AE, Schuh SM, Babcock DF, Jaiswal BS, Gossen JA, Esposito G, van Duin M, Conti M. Soluble adenylyl cyclase (sAC) is indispensable for sperm function and fertilization. Dev Biol 2006; 296:353-62. [PMID: 16842770 DOI: 10.1016/j.ydbio.2006.05.038] [Citation(s) in RCA: 183] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2006] [Revised: 05/25/2006] [Accepted: 05/31/2006] [Indexed: 11/30/2022]
Abstract
We previously demonstrated that male mice deficient in the soluble adenylyl cyclase (sAC) are sterile and produce spermatozoa with deficits in progressive motility and are unable to fertilize zona-intact eggs. Here, analyses of sAC(-/-) spermatozoa provide additional insights into the functions linked to cAMP signaling. Adenylyl cyclase activity and cAMP content are greatly diminished in crude preparations of sAC(-/-) spermatozoa and are undetectable after sperm purification. HCO(3)(-) is unable to rapidly accelerate the flagellar beat or facilitate evoked Ca(2+) entry into sAC(-/-) spermatozoa. Moreover, the delayed HCO(3)(-)-dependent increases in protein tyrosine phosphorylation and hyperactivated motility, which occur late in capacitation of wild-type spermatozoa, do not develop in sAC(-/-) spermatozoa. However, sAC(-/-) sperm fertilize zona-free oocytes, indicating that gamete fusion does not require sAC. Although ATP levels are significantly reduced in sAC(-/-) sperm, cAMP-AM ester increases flagellar beat frequency, progressive motility, and alters the pattern of tyrosine phosphorylated proteins. These results indicate that sAC and cAMP coordinate cellular energy balance in wild-type sperm and that the ATP generating machinery is not operating normally in sAC(-/-) spermatozoa. These findings demonstrate that sAC plays a critical role in cAMP signaling in spermatozoa and that defective cAMP production prevents engagement of multiple components of capacitation resulting in male infertility.
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Affiliation(s)
- Fang Xie
- Division of Reproductive Biology, Department of Obstetrics and Gynecology, Stanford University School of Medicine, Stanford, CA 94305, USA
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13
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Schuh SM, Carlson AE, McKnight GS, Conti M, Hille B, Babcock DF. Signaling pathways for modulation of mouse sperm motility by adenosine and catecholamine agonists. Biol Reprod 2005; 74:492-500. [PMID: 16291925 DOI: 10.1095/biolreprod.105.047837] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
Abstract
Capacitation of mammalian sperm, including alterations in flagellar motility, is presumably modulated by chemical signals encountered in the female reproductive tract. This work investigates signaling pathways for adenosine and catecholamine agonists that stimulate sperm kinetic activity. We show that 2-chloro-2'-deoxyadenosine and isoproterenol robustly accelerate flagellar beat frequency with EC50s near 10 and 0.05 microM, respectively. The several-fold acceleration is maximal by 60 sec. Although extracellular Ca2+ is required for agonist action on the flagellar beat, agonist treatment does not elevate sperm cytosolic [Ca2+] but does increase cAMP content. Acceleration does not require the conventional transmembrane adenylyl cyclase ADCY3, since it persists in sperm of ADCY3 knockout mice and in wild-type sperm in the presence of the inhibitors of conventional adenylyl cyclases SQ-22536, MDL-12330A, or 2', 5'-dideoxyadenosine. In contrast, the acceleration by these agents is absent in sperm that lack the predominant atypical adenylyl cyclase, SACY. Responses to these agonists are also absent in sperm from mice lacking the sperm-specific Calpha2 catalytic subunit of protein kinase A (PRKACA). Agonist responses also are strongly suppressed in wild-type sperm by the protein kinase inhibitor H-89. These results show that adenosine and catecholamine analogs activate sperm motility by mechanisms that require extracellular Ca2+, the atypical sperm adenylyl cyclase, cAMP, and protein kinase A.
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Affiliation(s)
- Sonya M Schuh
- Department of Physiology and Biophysics, University of Washington, Seattle, Washington 98195, USA
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Darszon A, Nishigaki T, Wood C, Treviño CL, Felix R, Beltrán C. Calcium Channels and Ca2+ Fluctuations in Sperm Physiology. INTERNATIONAL REVIEW OF CYTOLOGY 2005; 243:79-172. [PMID: 15797459 DOI: 10.1016/s0074-7696(05)43002-8] [Citation(s) in RCA: 124] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Generating new life in animals by sexual reproduction depends on adequate communication between mature and competent male and female gametes. Ion channels are instrumental in the dialogue between sperm, its environment, and the egg. The ability of sperm to swim to the egg and fertilize it is modulated by ion permeability changes induced by environmental cues and components of the egg outer layer. Ca(2+) is probably the key messenger in this information exchange. It is therefore not surprising that different Ca(2+)-permeable channels are distinctly localized in these tiny specialized cells. New approaches to measure sperm currents, intracellular Ca(2+), membrane potential, and intracellular pH with fluorescent probes, patch-clamp recordings, sequence information, and heterologous expression are revealing how sperm channels participate in fertilization. Certain sperm ion channels are turning out to be unique, making them attractive targets for contraception and for the discovery of novel signaling complexes.
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Affiliation(s)
- Alberto Darszon
- Department of Developmental Genetics and Molecular Physiology, Institute of Biotechnology, Universidad Nacional Autónoma de México, Cuernavaca, Morelos, Mexico 62210
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Ecroyd H, Asquith KL, Jones RC, Aitken RJ. The development of signal transduction pathways during epididymal maturation is calcium dependent. Dev Biol 2004; 268:53-63. [PMID: 15031104 DOI: 10.1016/j.ydbio.2003.12.015] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2003] [Revised: 11/10/2003] [Accepted: 12/15/2003] [Indexed: 10/26/2022]
Abstract
Capacitation has been correlated with the activation of a cAMP-PKA-dependent signaling pathway leading to protein tyrosine phosphorylation. The ability to exhibit this response to cAMP matures during epididymal maturation in concert with the ability of the spermatozoa to capacitate. In this study, we have addressed the mechanisms by which spermatozoa gain the potential to activate this signaling pathway during epididymal maturation. In a modified Tyrode's medium containing 1.7 mM calcium, caput spermatozoa had significantly higher [Ca2+]i than caudal cells and could not tyrosine phosphorylate in response to cAMP. However, in calcium-depleted medium both caput and caudal cells could exhibit a cAMP-dependent phosphorylation response. The inhibitory effect of calcium on tyrosine phosphorylation was also observed in caudal spermatozoa using thapsigargin, a Ca(2+)-ATPase inhibitor that increased [Ca2+]i and precipitated a corresponding decrease in phosphotyrosine expression. We also demonstrate that despite the activation of tyrosine phosphorylation in caput spermatozoa, these cells remain nonfunctional in terms of motility, sperm-egg recognition and acrosomal exocytosis. These results demonstrate that the signaling pathway leading to tyrosine phosphorylation in mouse spermatozoa is negatively regulated by [Ca2+]i, and that maturation mechanisms that control [Ca2+]i within the spermatozoon are critically important during epididymal transit.
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Affiliation(s)
- Heath Ecroyd
- Discipline of Biological Sciences, University of Newcastle, Callaghan, NSW 2308, Australia
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