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Sysoeva A, Akhmedova Z, Nepsha O, Makarova N, Silachev D, Shevtsova Y, Goryunov K, Karyagina V, Bugrova A, Starodubtseva N, Novoselova A, Chagovets V, Kalinina E. Characteristics of the Follicular Fluid Extracellular Vesicle Molecular Profile in Women in Different Age Groups in ART Programs. Life (Basel) 2024; 14:541. [PMID: 38792563 PMCID: PMC11121889 DOI: 10.3390/life14050541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Revised: 04/02/2024] [Accepted: 04/16/2024] [Indexed: 05/26/2024] Open
Abstract
The aim of this study was to investigate the molecular composition of follicular fluid (FF) extracellular vesicles (EVs) in women of different reproductive ages and its possible relationship to sperm fertilizing ability. FF EVs were obtained by differential centrifugation. The concentration and size distribution of FF EVs were analyzed by nanoparticle tracking analysis. The lipidome and proteome were analyzed by liquid chromatography-mass spectrometry. The isolated FF EVs had a variety of shapes and sizes; their concentration and size distribution did not differ significantly between the age groups. In women younger than 35 years, the concentration of vesicular progesterone was 6.6 times higher than in women older than 35 years, and the total levels of the main lipid classes were increased in younger women. A proteomic analysis revealed that not only FF EV-specific proteins, but also proteins involved in sperm activation were present. New data were obtained on the composition of FF EVs, confirming their importance as molecular indicators of age-related changes in the female reproductive system. In addition, these results shed light on the possible interaction between the FF EVs of women in different age groups and male germ cells. Therefore, studying the transcriptomic and metabolomic profile of FF EVs may be a crucial approach to evaluate the efficacy of ART.
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Affiliation(s)
- Anastasia Sysoeva
- V.I. Kulakov National Medical Research Center for Obstetrics Gynecology and Perinatology, Ministry of Healthcare of Russian Federation, 117997 Moscow, Russia; (A.S.); (Z.A.); (O.N.); (N.M.); (Y.S.); (K.G.); (V.K.); (A.B.); (N.S.); (A.N.); (V.C.); (E.K.)
| | - Zumriyat Akhmedova
- V.I. Kulakov National Medical Research Center for Obstetrics Gynecology and Perinatology, Ministry of Healthcare of Russian Federation, 117997 Moscow, Russia; (A.S.); (Z.A.); (O.N.); (N.M.); (Y.S.); (K.G.); (V.K.); (A.B.); (N.S.); (A.N.); (V.C.); (E.K.)
| | - Oksana Nepsha
- V.I. Kulakov National Medical Research Center for Obstetrics Gynecology and Perinatology, Ministry of Healthcare of Russian Federation, 117997 Moscow, Russia; (A.S.); (Z.A.); (O.N.); (N.M.); (Y.S.); (K.G.); (V.K.); (A.B.); (N.S.); (A.N.); (V.C.); (E.K.)
| | - Natalya Makarova
- V.I. Kulakov National Medical Research Center for Obstetrics Gynecology and Perinatology, Ministry of Healthcare of Russian Federation, 117997 Moscow, Russia; (A.S.); (Z.A.); (O.N.); (N.M.); (Y.S.); (K.G.); (V.K.); (A.B.); (N.S.); (A.N.); (V.C.); (E.K.)
| | - Denis Silachev
- V.I. Kulakov National Medical Research Center for Obstetrics Gynecology and Perinatology, Ministry of Healthcare of Russian Federation, 117997 Moscow, Russia; (A.S.); (Z.A.); (O.N.); (N.M.); (Y.S.); (K.G.); (V.K.); (A.B.); (N.S.); (A.N.); (V.C.); (E.K.)
- A.N. Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, 119992 Moscow, Russia
| | - Yulia Shevtsova
- V.I. Kulakov National Medical Research Center for Obstetrics Gynecology and Perinatology, Ministry of Healthcare of Russian Federation, 117997 Moscow, Russia; (A.S.); (Z.A.); (O.N.); (N.M.); (Y.S.); (K.G.); (V.K.); (A.B.); (N.S.); (A.N.); (V.C.); (E.K.)
| | - Kirill Goryunov
- V.I. Kulakov National Medical Research Center for Obstetrics Gynecology and Perinatology, Ministry of Healthcare of Russian Federation, 117997 Moscow, Russia; (A.S.); (Z.A.); (O.N.); (N.M.); (Y.S.); (K.G.); (V.K.); (A.B.); (N.S.); (A.N.); (V.C.); (E.K.)
| | - Victoria Karyagina
- V.I. Kulakov National Medical Research Center for Obstetrics Gynecology and Perinatology, Ministry of Healthcare of Russian Federation, 117997 Moscow, Russia; (A.S.); (Z.A.); (O.N.); (N.M.); (Y.S.); (K.G.); (V.K.); (A.B.); (N.S.); (A.N.); (V.C.); (E.K.)
| | - Anna Bugrova
- V.I. Kulakov National Medical Research Center for Obstetrics Gynecology and Perinatology, Ministry of Healthcare of Russian Federation, 117997 Moscow, Russia; (A.S.); (Z.A.); (O.N.); (N.M.); (Y.S.); (K.G.); (V.K.); (A.B.); (N.S.); (A.N.); (V.C.); (E.K.)
- Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, 119334 Moscow, Russia
| | - Natalya Starodubtseva
- V.I. Kulakov National Medical Research Center for Obstetrics Gynecology and Perinatology, Ministry of Healthcare of Russian Federation, 117997 Moscow, Russia; (A.S.); (Z.A.); (O.N.); (N.M.); (Y.S.); (K.G.); (V.K.); (A.B.); (N.S.); (A.N.); (V.C.); (E.K.)
- Moscow Institute of Physics and Technology, 141700 Moscow, Russia
| | - Anastasia Novoselova
- V.I. Kulakov National Medical Research Center for Obstetrics Gynecology and Perinatology, Ministry of Healthcare of Russian Federation, 117997 Moscow, Russia; (A.S.); (Z.A.); (O.N.); (N.M.); (Y.S.); (K.G.); (V.K.); (A.B.); (N.S.); (A.N.); (V.C.); (E.K.)
| | - Vitaliy Chagovets
- V.I. Kulakov National Medical Research Center for Obstetrics Gynecology and Perinatology, Ministry of Healthcare of Russian Federation, 117997 Moscow, Russia; (A.S.); (Z.A.); (O.N.); (N.M.); (Y.S.); (K.G.); (V.K.); (A.B.); (N.S.); (A.N.); (V.C.); (E.K.)
| | - Elena Kalinina
- V.I. Kulakov National Medical Research Center for Obstetrics Gynecology and Perinatology, Ministry of Healthcare of Russian Federation, 117997 Moscow, Russia; (A.S.); (Z.A.); (O.N.); (N.M.); (Y.S.); (K.G.); (V.K.); (A.B.); (N.S.); (A.N.); (V.C.); (E.K.)
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Corrêa DEDC, Bargi-Souza P, Oliveira IM, Razera A, Oliveira CA, Romano MA, Romano RM. Quantitative proteomic profile analysis of thyroid dysfunction effects on seminal vesicles and repercussions on male fertility. Mol Cell Endocrinol 2023; 578:112048. [PMID: 37633588 DOI: 10.1016/j.mce.2023.112048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 07/17/2023] [Accepted: 08/23/2023] [Indexed: 08/28/2023]
Abstract
Hypothyroidism and thyrotoxicosis are associated with male reproductive disorders, but little is known about the influence of the thyroid hormone milieu on seminal vesicle (SV) function and metabolism. In this sense, we investigated the effects of hypothyroidism and thyrotoxicosis induced in adulthood Wistar male rats on SV function and identified new thyroid hormone targets on male reproduction regulation using novel proteomic approaches. Hypothyroidism reduces SV size and seminal fluid volume, which are directly associated with low testosterone and estradiol levels, while thyrotoxicosis increases Esr2 and Dio1 expression in the SV. We found 116 differentially expressed proteins. Hypothyroidism reduces the expression of molecular protein markers related to sperm viability, capacitation and fertilization, protection against oxidative stress and energetic metabolism in SV, while it increases the expression of proteins related to tissue damage. In conclusion, thyroid dysfunction in the adult phase impairs several morphological, molecular and functional characteristics of SV.
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Affiliation(s)
| | - Paula Bargi-Souza
- Department of Physiology and Biophysics, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | | | - Amanda Razera
- Department of Medicine, State University of Central-West (UNICENTRO), Guarapuava, Parana, Brazil
| | - Claudio Alvarenga Oliveira
- Department of Animal Reproduction, Faculty of Veterinary Medicine, University of Sao Paulo, Sao Paulo, Brazil
| | - Marco Aurelio Romano
- Department of Medicine, State University of Central-West (UNICENTRO), Guarapuava, Parana, Brazil
| | - Renata Marino Romano
- Department of Medicine, State University of Central-West (UNICENTRO), Guarapuava, Parana, Brazil.
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Nir U, Grinshtain E, Breitbart H. Fer and FerT: A New Regulatory Link between Sperm and Cancer Cells. Int J Mol Sci 2023; 24:ijms24065256. [PMID: 36982326 PMCID: PMC10049441 DOI: 10.3390/ijms24065256] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2022] [Revised: 02/12/2023] [Accepted: 03/06/2023] [Indexed: 03/12/2023] Open
Abstract
Fer and its sperm and cancer specific variant, FerT, are non-receptor tyrosine kinases which play roles in cancer progression and metastasis. Recent studies have shed light on the regulatory role of these kinases in ensuring proper sperm function. Comparison of the regulatory cascades in which Fer and FerT are engaged in sperm and cancer cells presents an interesting picture, in which similar regulatory interactions of these enzymes are integrated in a similar or different regulatory context in the two cell types. These diverse compositions extend from the involvement of Fer in modulation of actin cytoskeleton integrity and function, to the unique regulatory interactions of Fer with PARP-1 and the PP1 phosphatase. Furthermore, recent findings link the metabolic regulatory roles of Fer and FerT in sperm and cancer cells. In the current review, we discuss the above detailed aspects, which portray Fer and FerT as new regulatory links between sperm and malignant cells. This perspective view can endow us with new analytical and research tools that will deepen our understanding of the regulatory trajectories and networks that govern these two multi-layered systems.
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Omics insights into spermatozoa activation induced by Fetal bovine serum in viviparous black rockfish (Sebastes schlegelii). Gene 2023; 851:147014. [DOI: 10.1016/j.gene.2022.147014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Revised: 08/16/2022] [Accepted: 10/25/2022] [Indexed: 11/04/2022]
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Benko F, Fialková V, Žiarovská J, Ďuračka M, Lukáč N, Tvrdá E. In Vitro versus Cryo-Induced Capacitation of Bovine Spermatozoa, Part 2: Changes in the Expression Patterns of Selected Transmembrane Channels and Protein Kinase A. Int J Mol Sci 2022; 23:ijms232314646. [PMID: 36498971 PMCID: PMC9739406 DOI: 10.3390/ijms232314646] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Revised: 11/19/2022] [Accepted: 11/21/2022] [Indexed: 11/25/2022] Open
Abstract
Since the molecular similarities and differences among physiological capacitation and cryocapacitation have not been studied in detail, this study was designed to assess the gene and protein expression levels of the Cation channel of sperm (CatSper) 1 and 2, sodium bicarbonate (Na+/HCO3−) cotransporter (NBC) and protein kinase A (PKA) in un-capacitated (control), in vitro capacitated (CAP) and cryopreserved (CRYO) bovine spermatozoa. All samples were subjected to motility evaluation using the computer assisted sperm analysis and chlortetracycline (CTC) assay for the assessment of the capacitation patterns. Furthermore, quantitative reverse transcription PCR (qRT-PCR) and Western blots were used to monitor the expression patterns of the selected capacitation markers. The results showed a significant reduction in the gene and protein expression levels of CatSper1 and 2 in the CRYO group when compared to the CAP group (p < 0.0001). In the case of NBC, the results were not significantly different or were inconclusive. While a non-significant down-regulation of PKA was found in the CRYO group, a significant reduction in the expression of the PKA protein was found in frozen-thawed spermatozoa in comparison to the CAP group (p < 0.05). In conclusion, we may hypothesize that while in vitro capacitated and cryopreserved spermatozoa exhibit CTC-patterns consistent with capacitation events, the molecular machinery underlying CTC-positivity may be different.
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Affiliation(s)
- Filip Benko
- Institute of Applied Biology, Faculty of Biotechnology and Food Sciences, Slovak University of Agriculture in Nitra, Tr. A. Hlinku 2, 949 76 Nitra, Slovakia
| | - Veronika Fialková
- AgroBioTech Research Centre, Slovak University of Agriculture in Nitra, Tr. A. Hlinku 2, 949 76 Nitra, Slovakia
| | - Jana Žiarovská
- Institute of Plant and Environmental Sciences, Faculty of Agrobiology and Food Resources, Slovak University of Agriculture in Nitra, Tr. A. Hlinku 2, 949 76 Nitra, Slovakia
| | - Michal Ďuračka
- AgroBioTech Research Centre, Slovak University of Agriculture in Nitra, Tr. A. Hlinku 2, 949 76 Nitra, Slovakia
| | - Norbert Lukáč
- Institute of Applied Biology, Faculty of Biotechnology and Food Sciences, Slovak University of Agriculture in Nitra, Tr. A. Hlinku 2, 949 76 Nitra, Slovakia
| | - Eva Tvrdá
- Institute of Biotechnology, Faculty of Biotechnology and Food Sciences, Slovak University of Agriculture in Nitra, Tr. A. Hlinku 2, 949 76 Nitra, Slovakia
- Correspondence: ; Tel.: +421-37-641-4918
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6
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Bowker Z, Goldstein S, Breitbart H. Protein acetylation protects sperm from spontaneous acrosome reaction. Theriogenology 2022; 191:231-238. [PMID: 35998406 DOI: 10.1016/j.theriogenology.2022.08.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Revised: 07/27/2022] [Accepted: 08/03/2022] [Indexed: 10/15/2022]
Abstract
In order to penetrate the egg, spermatozoa must undergo the acrosome reaction in close proximity to the egg. This process can take place only after a series of biochemical changes in the sperm, collectively termed capacitation, occur in the female reproductive tract. Sperm cells can undergo spontaneous-acrosome reaction(sAR) before reaching the vicinity of the egg, preventing successful fertilization. Several mechanisms were shown to protect sperm from undergoing sAR, and all of them are involved in proper capacitation. Here, we describe the involvement of protein acetylation in the mechanism that protects bovine spermatozoa from sAR. Incubation of bovine sperm under non-capacitation conditions revealed a strong increase in sAR that was significantly reduced in the presence of deacetylase inhibitors. Protein kinase A (PKA) is an essential key enzyme in sperm capacitation, and its inhibition results in high sAR. The reduction in sAR by hyperacetylation was independent of PKA activity. We previously demonstrated that calmodulin-kinase II (CaMKII) activity protects sperm from sAR, and here we show that its activity is essential for reduction in sAR by hyperacetylation. We further show that the 'exchange protein directly activated by Camp' (EPAC) mediates both protein lysine acetylation and the reduced rate of sAR caused by hyperacetylation. In conclusion, these results suggest a PKA-independent and EPAC-CaMKII dependent hyperacetylation mechanism that protects sperm from sAR.
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Affiliation(s)
- Z Bowker
- The Mina & Everard Faculty of Life Sciences, Bar-Ilan University, Ramat-Gan, 5290002, Israel
| | - S Goldstein
- The Mina & Everard Faculty of Life Sciences, Bar-Ilan University, Ramat-Gan, 5290002, Israel
| | - H Breitbart
- The Mina & Everard Faculty of Life Sciences, Bar-Ilan University, Ramat-Gan, 5290002, Israel.
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Schiavi-Ehrenhaus LJ, Romarowski A, Jabloñski M, Krapf D, Luque GM, Buffone MG. The early molecular events leading to COFILIN phosphorylation during mouse sperm capacitation are essential for acrosomal exocytosis. J Biol Chem 2022; 298:101988. [PMID: 35487245 PMCID: PMC9142561 DOI: 10.1016/j.jbc.2022.101988] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Revised: 04/18/2022] [Accepted: 04/20/2022] [Indexed: 12/03/2022] Open
Abstract
The actin cytoskeleton reorganization during sperm capacitation is essential for the occurrence of acrosomal exocytosis (AR) in several mammalian species. Here, we demonstrate that in mouse sperm, within the first minutes of exposure upon capacitating conditions, the activity of RHOA/C and RAC1 is essential for LIMK1 and COFILIN phosphorylation. However, we observed that the signaling pathway involving RAC1 and PAK4 is the main player in controlling actin polymerization in the sperm head necessary for the occurrence of AR. Moreover, we show that the transient phosphorylation of COFILIN is also influenced by the Slingshot family of protein phosphatases (SSH1). The activity of SSH1 is regulated by the dual action of two pathways. On one hand, RHOA/C and RAC1 activity promotes SSH1 phosphorylation (inactivation). On the other hand, the activating dephosphorylation is driven by okadaic acid-sensitive phosphatases. This regulatory mechanism is independent of the commonly observed activating mechanisms involving PP2B and emerges as a new finely tuned modulation that is, so far, exclusively observed in mouse sperm. However, persistent phosphorylation of COFILIN by SSH1 inhibition or okadaic acid did not altered actin polymerization and the AR. Altogether, our results highlight the role of small GTPases in modulating actin dynamics required for AR.
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Affiliation(s)
- Liza J Schiavi-Ehrenhaus
- Instituto de Biología y Medicina Experimental, Consejo Nacional de Investigaciones Científicas y Técnicas (IBYME-CONICET), Buenos Aires, Argentina
| | - Ana Romarowski
- Department of Veterinary and Animal Science, University of Massachusetts, Amherst, Massachusetts, USA
| | - Martina Jabloñski
- Instituto de Biología y Medicina Experimental, Consejo Nacional de Investigaciones Científicas y Técnicas (IBYME-CONICET), Buenos Aires, Argentina
| | - Darío Krapf
- Instituto de Biología Molecular y Celular de Rosario (IBR), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad Nacional de Rosario (UNR), Rosario, Argentina
| | - Guillermina M Luque
- Instituto de Biología y Medicina Experimental, Consejo Nacional de Investigaciones Científicas y Técnicas (IBYME-CONICET), Buenos Aires, Argentina.
| | - Mariano G Buffone
- Instituto de Biología y Medicina Experimental, Consejo Nacional de Investigaciones Científicas y Técnicas (IBYME-CONICET), Buenos Aires, Argentina.
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Grinshtain E, Shpungin S, Baum M, Nir U, Breitbart H. The Fer tyrosine kinase protects sperm from spontaneous acrosome reaction. Dev Biol 2022; 487:24-33. [DOI: 10.1016/j.ydbio.2022.04.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Revised: 03/23/2022] [Accepted: 04/13/2022] [Indexed: 11/24/2022]
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Nguyen M, Sabry R, Davis OS, Favetta LA. Effects of BPA, BPS, and BPF on Oxidative Stress and Antioxidant Enzyme Expression in Bovine Oocytes and Spermatozoa. Genes (Basel) 2022; 13:142. [PMID: 35052481 PMCID: PMC8774721 DOI: 10.3390/genes13010142] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Revised: 01/11/2022] [Accepted: 01/13/2022] [Indexed: 12/18/2022] Open
Abstract
Bisphenol A (BPA) and its analogs, bisphenol S (BPS) and bisphenol F (BPF), might impact fertility by altering oxidative stress pathways. Here, we hypothesize that bisphenols-induced oxidative stress is responsible for decreased gamete quality. In both female (cumulus-oocyte-complexes-COCs) and male (spermatozoa), oxidative stress was measured by CM-H2DCFDA assay and key ROS scavengers (SOD1, SOD2, GPX1, GPX4, CAT) were quantified at the mRNA and protein levels using qPCR and Western blot (COCs)/immunofluorescence (sperm). Either gamete was treated in five groups: control, vehicle, and 0.05 mg/mL of BPA, BPS, or BPF. Our results show elevated ROS in BPA-treated COCs but decreased production in BPS- and BPF-treated spermatozoa. Additionally, both mRNA and protein expression of SOD2, GPX1, and GPX4 were decreased in BPA-treated COCs (p < 0.05). In sperm, motility (p < 0.03), but not morphology, was significantly altered by bisphenols. SOD1 mRNA expression was significantly increased, while GPX4 was significantly reduced. These results support BPA's ability to alter oxidative stress in oocytes and, to a lesser extent, in sperm. However, BPS and BPF likely act through different mechanisms.
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Affiliation(s)
| | | | | | - Laura A. Favetta
- Reproductive Health and Biotechnology Lab, Department of Biomedical Sciences, Ontario Veterinary College, University of Guelph, Guelph, ON N1G 2W1, Canada; (M.N.); (R.S.); (O.S.D.)
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Bull Sperm Capacitation Is Accompanied by Redox Modifications of Proteins. Int J Mol Sci 2021; 22:ijms22157903. [PMID: 34360666 PMCID: PMC8347624 DOI: 10.3390/ijms22157903] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Revised: 07/16/2021] [Accepted: 07/19/2021] [Indexed: 12/19/2022] Open
Abstract
The ability to fertilise an egg is acquired by the mammalian sperm during the complex biochemical process called capacitation. Capacitation is accompanied by the production of reactive oxygen species (ROS), but the mechanism of redox regulation during capacitation has not been elucidated. This study aimed to verify whether capacitation coincides with reversible oxidative post-translational modifications of proteins (oxPTMs). Flow cytometry, fluorescence microscopy and Western blot analyses were used to verify the sperm capacitation process. A fluorescent gel-based redox proteomic approach allowed us to observe changes in the level of reversible oxPTMs manifested by the reduction or oxidation of susceptible cysteines in sperm proteins. Sperm capacitation was accompanied with redox modifications of 48 protein spots corresponding to 22 proteins involved in the production of ROS (SOD, DLD), playing a role in downstream redox signal transfer (GAPDHS and GST) related to the cAMP/PKA pathway (ROPN1L, SPA17), acrosome exocytosis (ACRB, sperm acrosome associated protein 9, IZUMO4), actin polymerisation (CAPZB) and hyperactivation (TUBB4B, TUB1A). The results demonstrated that sperm capacitation is accompanied by altered levels of oxPTMs of a group of redox responsive proteins, filling gaps in our knowledge concerning sperm capacitation.
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Manfrevola F, Guillou F, Fasano S, Pierantoni R, Chianese R. LINCking the Nuclear Envelope to Sperm Architecture. Genes (Basel) 2021; 12:genes12050658. [PMID: 33925685 PMCID: PMC8145172 DOI: 10.3390/genes12050658] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Revised: 04/13/2021] [Accepted: 04/24/2021] [Indexed: 12/11/2022] Open
Abstract
Nuclear architecture undergoes an extensive remodeling during spermatogenesis, especially at levels of spermatocytes (SPC) and spermatids (SPT). Interestingly, typical events of spermiogenesis, such as nuclear elongation, acrosome biogenesis, and flagellum formation, need a functional cooperation between proteins of the nuclear envelope and acroplaxome/manchette structures. In addition, nuclear envelope plays a key role in chromosome distribution. In this scenario, special attention has been focused on the LINC (linker of nucleoskeleton and cytoskeleton) complex, a nuclear envelope-bridge structure involved in the connection of the nucleoskeleton to the cytoskeleton, governing mechanotransduction. It includes two integral proteins: KASH- and SUN-domain proteins, on the outer (ONM) and inner (INM) nuclear membrane, respectively. The LINC complex is involved in several functions fundamental to the correct development of sperm cells such as head formation and head to tail connection, and, therefore, it seems to be important in determining male fertility. This review provides a global overview of the main LINC complex components, with a special attention to their subcellular localization in sperm cells, their roles in the regulation of sperm morphological maturation, and, lastly, LINC complex alterations associated to male infertility.
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Affiliation(s)
- Francesco Manfrevola
- Dipartimento di Medicina Sperimentale, Università degli Studi della Campania L. Vanvitelli, Via Costantinopoli 16, 80138 Napoli, Italy; (F.M.); (S.F.); (R.P.)
| | - Florian Guillou
- PRC, CNRS, IFCE, INRAE, University of Tours, 37380 Nouzilly, France;
| | - Silvia Fasano
- Dipartimento di Medicina Sperimentale, Università degli Studi della Campania L. Vanvitelli, Via Costantinopoli 16, 80138 Napoli, Italy; (F.M.); (S.F.); (R.P.)
| | - Riccardo Pierantoni
- Dipartimento di Medicina Sperimentale, Università degli Studi della Campania L. Vanvitelli, Via Costantinopoli 16, 80138 Napoli, Italy; (F.M.); (S.F.); (R.P.)
| | - Rosanna Chianese
- Dipartimento di Medicina Sperimentale, Università degli Studi della Campania L. Vanvitelli, Via Costantinopoli 16, 80138 Napoli, Italy; (F.M.); (S.F.); (R.P.)
- Correspondence:
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12
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Unnikrishnan V, Kastelic JP, Thundathil JC. Ouabain-induced activation of phospholipase C zeta and its contributions to bovine sperm capacitation. Cell Tissue Res 2021; 385:785-801. [PMID: 33885964 DOI: 10.1007/s00441-021-03455-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Accepted: 03/22/2021] [Indexed: 11/30/2022]
Abstract
The sperm-derived oocyte activating factor, phospholipase C zeta (PLC ζ), is the only PLC isoform reported in cattle. The objectives were to (1) localize PLC ζ in fresh and capacitated bovine sperm and (2) investigate the activation of PLC ζ during bull sperm capacitation and contributions of PLC activity to this process. We confirmed interaction of testis-specific isoform of Na/K-ATPase (ATP1A4) with PLC ζ (immunolocalization and immunoprecipitation) and tyrosine phosphorylation (immunoprecipitation) of PLC ζ (a post-translational protein modification commonly involved in activation of PLC in somatic cells) during capacitation. Furthermore, incubation of sperm under capacitating conditions upregulated PLC-mediated hyperactivated motility, tyrosine phosphoprotein content, acrosome reaction, and F-actin formation (flow cytometry), implying that PLC activity is enhanced during capacitation and contributing to these capacitation processes. In conclusion, we inferred that PLC ζ is activated during capacitation by tyrosine phosphorylation through a mechanism involving ATP1A4, contributing to capacitation-associated biochemical events.
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Affiliation(s)
- Veena Unnikrishnan
- Department of Production Animal Health, Faculty of Veterinary Medicine, University of Calgary, Calgary, CAL, T2N 4N1, Canada
| | - John P Kastelic
- Department of Production Animal Health, Faculty of Veterinary Medicine, University of Calgary, Calgary, CAL, T2N 4N1, Canada
| | - Jacob C Thundathil
- Department of Production Animal Health, Faculty of Veterinary Medicine, University of Calgary, Calgary, CAL, T2N 4N1, Canada.
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Finkelstein M, Etkovitz N, Breitbart H. Ca 2+ signaling in mammalian spermatozoa. Mol Cell Endocrinol 2020; 516:110953. [PMID: 32712383 DOI: 10.1016/j.mce.2020.110953] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/08/2020] [Revised: 06/08/2020] [Accepted: 07/20/2020] [Indexed: 02/06/2023]
Abstract
Calcium is an essential ion which regulates sperm motility, capacitation and the acrosome reaction (AR), three processes necessary for successful fertilization. The AR enables the spermatozoon to penetrate into the egg. In order to undergo the AR, the spermatozoon must reside in the female reproductive tract for several hours, during which a series of biochemical transformations takes place, collectively called capacitation. An early event in capacitation is relatively small elevation of intracellular Ca2+ (in the nM range) and bicarbonate, which collectively activate the soluble adenylyl cyclase to produce cyclic-AMP; c-AMP activates protein kinase A (PKA), leading to indirect tyrosine phosphorylation of proteins. During capacitation, there is an increase in the membrane-bound phospholipase C (PLC) which is activated prior to the AR by relatively high increase in intracellular Ca2+ (in the μM range). PLC catalyzes the hydrolysis of phosphatidyl-inositol-4,5-bisphosphate (PIP2) to diacylglycerol and inositol-trisphosphate (IP3), leading to activation of protein kinase C (PKC) and the IP3-receptor. PKC activates a Ca2+- channel in the plasma membrane, and IP3 activates the Ca2+- channel in the outer acrosomal membrane, leading to Ca2+ depletion from the acrosome. As a result, the plasma-membrane store-operated Ca2+ channel (SOCC) is activated to increase cytosolic Ca2+ concentration, enabling completion of the acrosome reaction. The hydrolysis of PIP2 by PLC results in the release and activation of PIP2-bound gelsolin, leading to F-actin dispersion, an essential step prior to the AR. Ca2+ is also involved in the regulation of sperm motility. During capacitation, the sperm develops a unique motility pattern called hyper-activated motility (HAM) which is essential for successful fertilization. The main Ca2+-channel that mediates HAM is the sperm-specific CatSper located in the sperm tail.
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Affiliation(s)
| | - Nir Etkovitz
- Sperm Bank, Sheba Hospital, Tel-Hashomer, Israel
| | - Haim Breitbart
- The Mina & Everard Faculty of Life Sciences, Bar-Ilan University, Ramat-Gan, 5290002, Israel.
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14
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Chiarante N, Alonso CAI, Plaza J, Lottero-Leconte R, Arroyo-Salvo C, Yaneff A, Osycka-Salut CE, Davio C, Miragaya M, Perez-Martinez S. Cyclic AMP efflux through MRP4 regulates actin dynamics signalling pathway and sperm motility in bovines. Sci Rep 2020; 10:15619. [PMID: 32973195 PMCID: PMC7518284 DOI: 10.1038/s41598-020-72425-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Accepted: 08/27/2020] [Indexed: 11/15/2022] Open
Abstract
Previously we demonstrated that multidrug resistance-associated protein 4 transporter (MRP4) mediates cAMP efflux in bovine spermatozoa and that extracellular cAMP (ecAMP) triggers events associated to capacitation. Here, we deepen the study of the role of MRP4 in bovine sperm function by using MK571, an MRP4 inhibitor. The incubation of spermatozoa with MK571 during 45 min inhibited capacitation-associated events. MRP4 was localized in post-acrosomal region and mid-piece at 15 min capacitation, while at 45 min it was mainly located in the acrosome. After 15 min, MK571 decreased total sperm motility (TM), progressive motility (PM) and several kinematic parameters. The addition of ecAMP rescued MK571 effect and ecAMP alone increased the percentage of motile sperm and kinematics parameters. Since actin cytoskeleton plays essential roles in the regulation of sperm motility, we investigated if MRP4 activity might affect actin polymerization. After 15 min capacitation, an increase in F-actin was observed, which was inhibited by MK571. This effect was reverted by the addition of ecAMP. Furthermore, ecAMP alone increased F-actin levels while no F-actin was detected with ecAMP in the presence of PKA inhibitors. Our results support the importance of cAMP efflux through MRP4 in sperm capacitation and suggest its involvement in the regulation of actin polymerization and motility.
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Affiliation(s)
- Nicolás Chiarante
- Universidad Buenos Aires (UBA), Facultad de Medicina, (CONICET-UBA) Centro de Estudios Farmacológicos y Botánicos (CEFYBO), C1121ABG, Buenos Aires, Argentina
| | - Carlos A I Alonso
- Department of Pharmacology and Therapeutics, McGill University, Montreal, QC, H3G 1Y6, Canada
| | - Jessica Plaza
- Facultad de Ciencias Veterinarias, Instituto de Investigación y Tecnología en Reproducción Animal (INITRA), UBA, Buenos Aires, Argentina
| | - Raquel Lottero-Leconte
- Universidad Buenos Aires (UBA), Facultad de Medicina, (CONICET-UBA) Centro de Estudios Farmacológicos y Botánicos (CEFYBO), C1121ABG, Buenos Aires, Argentina
| | - Camila Arroyo-Salvo
- Universidad Buenos Aires (UBA), Facultad de Medicina, (CONICET-UBA) Centro de Estudios Farmacológicos y Botánicos (CEFYBO), C1121ABG, Buenos Aires, Argentina
| | - Agustín Yaneff
- Instituto de Investigaciones Farmacológicas (ININFA) (UBA-CONICET), Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, C1113AAD, Buenos Aires, Argentina
| | - Claudia E Osycka-Salut
- Instituto de Investigaciones Biotecnológicas, Universidad Nacional de San Martín (IIIB-UNSAM/CONICET), Campus Miguelete, Avenida 25 de Mayo y Francia, San Martín, B1650HMP, Buenos Aires, Argentina
| | - Carlos Davio
- Instituto de Investigaciones Farmacológicas (ININFA) (UBA-CONICET), Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, C1113AAD, Buenos Aires, Argentina
| | - Marcelo Miragaya
- Facultad de Ciencias Veterinarias, Instituto de Investigación y Tecnología en Reproducción Animal (INITRA), UBA, Buenos Aires, Argentina
| | - Silvina Perez-Martinez
- Universidad Buenos Aires (UBA), Facultad de Medicina, (CONICET-UBA) Centro de Estudios Farmacológicos y Botánicos (CEFYBO), C1121ABG, Buenos Aires, Argentina.
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15
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Arafat M, Harlev A, Har-Vardi I, Levitas E, Priel T, Gershoni M, Searby C, Sheffield VC, Lunenfeld E, Parvari R. Mutation in CATIP (C2orf62) causes oligoteratoasthenozoospermia by affecting actin dynamics. J Med Genet 2020; 58:jmedgenet-2019-106825. [PMID: 32503832 DOI: 10.1136/jmedgenet-2019-106825] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2020] [Revised: 04/01/2020] [Accepted: 04/08/2020] [Indexed: 12/11/2022]
Abstract
BACKGROUND Oligoteratoasthenozoospermia (OTA) combines deteriorated quantity, morphology and motility of the sperm, resulting in male factor infertility. METHODS We used whole genome genotyping and exome sequencing to identify the mutation causing OTA in four men in a consanguineous Bedouin family. We expressed the normal and mutated proteins tagged with c-Myc at the carboxy termini by transfection with pCDNA3.1 plasmid constructs to evaluate the effects on protein stability in HEK293 cells and on the kinetics of actin repolymerisation in retinal pigment epithelium cells. Patients' sperm samples were visualised by transmission electron microscopy to determine axoneme structures and were stained with fluorescent phalloidin to visualise the fibrillar (F)-actin. RESULTS A homozygous missense mutation in Ciliogenesis Associated TTC17 Interacting Protein (CATIP): c. T103A, p. Phe35Ile, a gene encoding a protein important in actin organisation and ciliogenesis, was identified as the causative mutation with a LOD score of 3.25. The mutation reduces the protein stability compared with the normal protein. Furthermore, overexpression of the normal protein, but not the mutated protein, inhibits repolymerisation of actin after disruption with cytochalasin D. A high percentage of spermatozoa axonemes from patients have abnormalities, as well as disturbances in the distribution of F-actin. CONCLUSION This is the first report of a recessive mutation in CATIP in humans. The identified mutation may contribute to asthenozoospermia by its involvement in actin polymerisation and on the actin cytoskeleton. A mouse knockout homozygote for CATIP was reported to demonstrate male infertility as the sole phenotype.
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Affiliation(s)
- Maram Arafat
- The Shraga Segal Department of Microbiology, Immunology & Genetics, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer Sheva, Israel
- The National Institute for Biotechnology in the Negev, Ben-Gurion University of the Negev, Beer Sheva, Israel
| | - Avi Harlev
- Fertility and IVF Unit, Department of Obstetrics and Gynecology, Soroka University Medical Center, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer Sheva, Israel
| | - Iris Har-Vardi
- Fertility and IVF Unit, Department of Obstetrics and Gynecology, Soroka University Medical Center, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer Sheva, Israel
| | - Eliahu Levitas
- Fertility and IVF Unit, Department of Obstetrics and Gynecology, Soroka University Medical Center, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer Sheva, Israel
- The Center of Advanced Research and Education in Reproduction (CARER), Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer Sheva, Israel
| | - Tsvia Priel
- Fertility and IVF Unit, Department of Obstetrics and Gynecology, Soroka University Medical Center, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer Sheva, Israel
| | - Moran Gershoni
- ARO- The Volcani Center, Institute of Animal Science, Rehovot - Faculty of Agriculture Bet Dagan, Rishon LeZion, Israel
| | - Charles Searby
- Department of Pediatrics and Ophthalmology, Division of Medical Genetics, University of Iowa, Iowa City, Iowa, USA
| | - Val C Sheffield
- Department of Pediatrics and Ophthalmology, Division of Medical Genetics, University of Iowa, Iowa City, Iowa, USA
| | - Eitan Lunenfeld
- Fertility and IVF Unit, Department of Obstetrics and Gynecology, Soroka University Medical Center, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer Sheva, Israel
- The Center of Advanced Research and Education in Reproduction (CARER), Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer Sheva, Israel
| | - Ruti Parvari
- The Shraga Segal Department of Microbiology, Immunology & Genetics, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer Sheva, Israel
- The National Institute for Biotechnology in the Negev, Ben-Gurion University of the Negev, Beer Sheva, Israel
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16
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Successful selection of mouse sperm with high viability and fertility using microfluidics chip cell sorter. Sci Rep 2020; 10:8862. [PMID: 32483250 PMCID: PMC7264210 DOI: 10.1038/s41598-020-65931-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Accepted: 05/11/2020] [Indexed: 02/06/2023] Open
Abstract
Cell sorting via flow cytometry is a powerful tool to select subpopulations of cells in many biological fields. Selection of fertilisation-prone sperm is a critical step to ensure a stable and high fertilisation rate in in vitro fertilisation (IVF). However, a combination of conventional cell sorting and IVF system has not been established because of severe mechanical damages to the sperm during the sorting process. A cell sorter with microfluidics chip technology that lessens cell damage during cell sorting may address this problem. We evaluated the effects of microfluidics chip cell sorting on the sperm using the parameters, such as motility and fertility, and found this cell sorting method had minimal harmful effect on the sperm. Then, sperm were selected by a marker for acrosome reaction and showed higher fertilisation rate than that of the population of acrosome-intact sperm. Embryo derived from these sperm developed normally. These results indicated that microfluidics chip cell sorting can select fertile sperm to improve IVF technique.
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17
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Salgado-Lucio ML, Ramírez-Ramírez D, Jorge-Cruz CY, Roa-Espitia AL, Hernández-González EO. FAK regulates actin polymerization during sperm capacitation via the ERK2/GEF-H1/RhoA signaling pathway. J Cell Sci 2020; 133:jcs239186. [PMID: 32107290 DOI: 10.1242/jcs.239186] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2019] [Accepted: 02/08/2020] [Indexed: 12/18/2022] Open
Abstract
Actin polymerization is a crucial process during sperm capacitation. We have recently described the participation of FAK during actin polymerization in guinea pig spermatozoa. However, the mechanism by which FAK mediates these processes is unknown. Our previous data have shown that MAPK1 (hereafter referred to as ERK2) is activated during the first minutes of capacitation, and inhibition of ERK2 blocked actin polymerization and the acrosome reaction. In this current study, we found that FAK is involved in ERK2 activation - as FAK was phosphorylated at tyrosine residue 925 and bound to Grb2 - and that inhibition of FAK results in a significant decrease of ERK2 activation. We also confirmed the presence of Rho guanine nucleotide exchange factor 2 (ARHGEF2, hereafter referred to as GEF-H1), which is able to associate with RhoA during capacitation. RhoA activation and its participation in actin polymerization were also analyzed. Inhibition of FAK or ERK1/2 impeded GEF-H1 phosphorylation, RhoA activation, and the association between GEF-H1 and RhoA. Finally, we observed the presence of fibronectin on the sperm surface, its role in sperm-sperm interaction as well as participation of β-integrin in the activation of ERK2. Our results show that the signaling pathway downstream of fibronectin, via integrin, FAK, Grb2, MEK1/2, ERK2, GEF-H1 and RhoA regulates the actin polymerization associated with spermatozoa capacitation.
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Affiliation(s)
- Monica L Salgado-Lucio
- Departamento de Biología Celular, Centro de Investigación y Estudios Avanzados del Instituto Politécnico Nacional, Av. Instituto Politécnico Nacional 2508, San Pedro Zacatenco, CDMX 07360, México
| | - Danelia Ramírez-Ramírez
- Departamento de Biología Celular, Centro de Investigación y Estudios Avanzados del Instituto Politécnico Nacional, Av. Instituto Politécnico Nacional 2508, San Pedro Zacatenco, CDMX 07360, México
| | - Coral Y Jorge-Cruz
- Departamento de Biología Celular, Centro de Investigación y Estudios Avanzados del Instituto Politécnico Nacional, Av. Instituto Politécnico Nacional 2508, San Pedro Zacatenco, CDMX 07360, México
| | - Ana L Roa-Espitia
- Departamento de Biología Celular, Centro de Investigación y Estudios Avanzados del Instituto Politécnico Nacional, Av. Instituto Politécnico Nacional 2508, San Pedro Zacatenco, CDMX 07360, México
| | - Enrique O Hernández-González
- Departamento de Biología Celular, Centro de Investigación y Estudios Avanzados del Instituto Politécnico Nacional, Av. Instituto Politécnico Nacional 2508, San Pedro Zacatenco, CDMX 07360, México
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18
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Huta Y, Nitzan Y, Breitbart H. Ezrin protects bovine spermatozoa from spontaneous acrosome reaction. Theriogenology 2020; 151:119-127. [PMID: 32334120 DOI: 10.1016/j.theriogenology.2020.04.019] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2019] [Revised: 04/12/2020] [Accepted: 04/13/2020] [Indexed: 11/18/2022]
Abstract
To interact and penetrate the egg, the spermatozoon must undergo a maturation step called the acrosome reaction (AR) in close proximity to the egg. This process can take place only after a series of biochemical changes to the sperm occur in the female reproductive tract, collectively called capacitation. Spermatozoa can undergo spontaneous-acrosome reaction (sAR) before reaching the vicinity of the egg, preventing successful fertilization. Several mechanisms were shown to protect spermatozoa from undergoing sAR. Here we describe the involvement of the actin cross-linker, Ezrin in the mechanism that protects spermatozoa from sAR. Inhibition of Ezrin stimulates sAR and inhibits actin polymerization. Ezrin is highly phosphorylated/activated during the first hour of the capacitation process, and its phosphorylation rate is subsequently decreased. Ezrin phosphorylation depends on protein kinase A (PKA) and calmodulin kinase II (CaMKII) activities, and to some extent on phosphatidyl-inositol-4-kinase (PI4K) activity. Inhibition of these three kinases stimulates sAR, in which the effect of PI4K inhibition, but not PKA or CaMKII inhibition, can be reversed by increasing p-Ezrin using a phosphatase inhibitor. All together, we showed that three kinases mediate Ezrin activation during spermatozoa capacitation, leading to actin polymerization in a mechanism that prevents sAR.
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Affiliation(s)
- Y Huta
- The Mina &Everard Faculty of Life Sciences,Bar-Ilan University, Ramat-Gan, 5290002, Israel
| | - Y Nitzan
- Department of Clinical Laboratory Science, Zefat Academic College, Zefat, 1320611, Israel
| | - H Breitbart
- The Mina &Everard Faculty of Life Sciences,Bar-Ilan University, Ramat-Gan, 5290002, Israel.
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19
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Dey S, Brothag C, Vijayaraghavan S. Signaling Enzymes Required for Sperm Maturation and Fertilization in Mammals. Front Cell Dev Biol 2019; 7:341. [PMID: 31921853 PMCID: PMC6930163 DOI: 10.3389/fcell.2019.00341] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2019] [Accepted: 12/03/2019] [Indexed: 12/18/2022] Open
Abstract
In mammals, motility and fertilizing ability of spermatozoa develop during their passage through the epididymis. After ejaculation, sperm undergo capacitation and hyperactivation in the female reproductive tract - a motility transition that is required for sperm penetration of the egg. Both epididymal initiation of sperm motility and hyperactivation are essential for male fertility. Motility initiation in the epididymis and sperm hyperactivation involve changes in metabolism, cAMP (cyclic adenosine mono-phosphate), calcium and pH acting through protein kinases and phosphatases. Despite this knowledge, we still do not understand, in biochemical terms, how sperm acquire motility in the epididymis and how motility is altered in the female reproductive tract. Recent data show that the sperm specific protein phosphatase PP1γ2, glycogen synthase kinase 3 (GSK3), and the calcium regulated phosphatase calcineurin (PP2B), are involved in epididymal sperm maturation. The protein phosphatase PP1γ2 is present only in testis and sperm in mammals. PP1γ2 has a isoform-specific requirement for normal function of mammalian sperm. Sperm PP1γ2 is regulated by three proteins - inhibitor 2, inhibitor 3 and SDS22. Changes in phosphorylation of these three inhibitors and their binding to PP1γ2 are involved in initiation and activation of sperm motility. The inhibitors are phosphorylated by protein kinases, one of which is GSK3. The isoform GSK3α is essential for epididymal sperm maturation and fertility. Calcium levels dramatically decrease during sperm maturation and initiation of motility suggesting that the calcium activated sperm phosphatase (PP2B) activity also decreases. Loss of PP2B results in male infertility due to impaired sperm maturation in the epididymis. Thus the three signaling enzymes PP1γ2, GSK3, and PP2B along with the documented PKA (protein kinase A) have key roles in sperm maturation and hyperactivation. Significantly, all these four signaling enzymes are present as specific isoforms only in placental mammals, a testimony to their essential roles in the unique aspects of sperm function in mammals. These findings should lead to a better biochemical understanding of the basis of male infertility and should lead to novel approaches to a male contraception and managed reproduction.
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20
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Tsirulnikov E, Huta Y, Breitbart H. PKA and PI3K activities during capacitation protect sperm from undergoing spontaneous acrosome reaction. Theriogenology 2019; 128:54-61. [DOI: 10.1016/j.theriogenology.2019.01.036] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2018] [Revised: 12/24/2018] [Accepted: 01/31/2019] [Indexed: 12/20/2022]
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21
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Yoshimoto H, Takeo T, Nakagata N. Dimethyl sulfoxide and quercetin prolong the survival, motility, and fertility of cold-stored mouse sperm for 10 days. Biol Reprod 2019; 97:883-891. [PMID: 29126179 PMCID: PMC5803767 DOI: 10.1093/biolre/iox144] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2017] [Accepted: 11/07/2017] [Indexed: 12/15/2022] Open
Abstract
Technology for preserving sperm is useful for disseminating valuable male genetic traits. Cold storage is suitable for easily transporting sperm as an alternative to the shipment of live animals. However, there is a technical limitation in that the fertility of cold-stored sperm declines within 3 days. To overcome this problem, we examined the protective effects of quercetin and dimethyl sulfoxide (DMSO). DMSO and quercetin maintained the fertility and motility of cold-stored sperm for 10 days. In addition, quercetin attenuated the reduction of mitochondrial membrane potential of cold-stored sperm during sperm preincubation, allowing the induction of capacitation, and it localized to the midpiece of sperm. Furthermore, DMSO and quercetin enhanced the level of tyrosine phosphorylation of cold-stored sperm. DMSO and quercetin have life-prolonging effects on sperm during cold storage. Cold storage using DMSO and quercetin will provide a robust system for internationally transporting valuable sperm samples.
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Affiliation(s)
- Hidetaka Yoshimoto
- Division of Reproductive Engineering, Center for Animal Resources and Development (CARD), Kumamoto University, Kumamoto, Japan
| | - Toru Takeo
- Division of Reproductive Engineering, Center for Animal Resources and Development (CARD), Kumamoto University, Kumamoto, Japan
| | - Naomi Nakagata
- Division of Reproductive Engineering, Center for Animal Resources and Development (CARD), Kumamoto University, Kumamoto, Japan
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22
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Compromised vitality of spermatozoa after contact with colonic mucosa in mice: implications for fertility in colon vaginoplasty patients. Pediatr Surg Int 2019; 35:71-75. [PMID: 30374634 DOI: 10.1007/s00383-018-4377-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 10/18/2018] [Indexed: 02/06/2023]
Abstract
AIM OF THE STUDY Colon vaginoplasty (CV) is often performed for cloacal malformation (CM). We used mice to study the vitality of spermatozoa after contact with colonic mucosa as a factor contributing to infertility. METHODS Spermatozoa isolated from the epididymides of C57BL/6J male mice (n = 23) were syringed directly into the vaginas (Vag-group) or colons (Colo-group) of female mice (n = 45). Vitality was determined by assessing motility using computer-assisted sperm analysis, viability by staining with SYBR-14 and propidium iodide, and fertility by in vitro fertilization, prior to deposition, and at 5, 10, 30, and 60 min after deposition. MAIN RESULTS Motility was significantly decreased in Colo only at 10 and 60 min. Viability of Colo spermatozoa was significant at all assessment times, except at 10 min. Normal fertilization was observed with all Vag spermatozoa, but with Colo, there was arrest of embryo development with spermatozoa collected at 5 and 10 min, and no fertilization with spermatozoa collected at 30 and 60 min. CONCLUSIONS The vitality of spermatozoa is compromised by contact with colonic mucosa which could contribute to infertility in CM after CV, because their ovaries and fallopian tubes are considered to be normal.
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23
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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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24
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Harayama H. Flagellar hyperactivation of bull and boar spermatozoa. Reprod Med Biol 2018; 17:442-448. [PMID: 30377397 PMCID: PMC6194283 DOI: 10.1002/rmb2.12227] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2018] [Revised: 07/26/2018] [Accepted: 07/31/2018] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND In mammals, flagellar hyperactivation is indispensable to sperm fertilization with oocytes in vivo, although there are species differences in regulatory mechanisms for this event. In this study, I reviewed researches regarding hyperactivation of bull and boar spermatozoa, in comparison with those of spermatozoa from other species. METHODS Recent publications regarding sperm hyperactivation were collected and summarized. RESULTS MAIN FINDINGS In bull and boar spermatozoa, there are two types of hyperactivation "full-type hyperactivation and nonfull-type hyperactivation" which are equivalent to anti-hock hyperactivation and pro-hock hyperactivation of mouse spermatozoa, respectively, on the basis of the flagellar parts exhibiting asymmetrical beating. Full-type hyperactivation is initiated in response to a rapid increase of cytoplasmic Ca2+ in the connecting/middle and principal pieces by the mobilization of this divalent ion from extracellular space and internal store through cation channels. Regulatory molecules for the increase of cytoplasmic Ca2+ in the connecting/middle pieces are probably different from those in the principal pieces. CONCLUSION I have proposed a hypothesis on the regulation of full-type hyperactivation by the distinct signaling cascades leading to the increase in cytoplasmic Ca2+ between the connecting/middle and principal pieces of bull and boar spermatozoa.
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Affiliation(s)
- Hiroshi Harayama
- Division of Animal Science, Department of Bioresource Science, Graduate School of Agricultural ScienceKobe UniversityKobeJapan
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Efrat M, Stein A, Pinkas H, Breitbart H, Unger R, Birk R. Paraoxonase 1 (PON1) attenuates sperm hyperactivity and spontaneous acrosome reaction. Andrology 2018; 7:24-30. [DOI: 10.1111/andr.12552] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2018] [Revised: 07/26/2018] [Accepted: 08/18/2018] [Indexed: 12/19/2022]
Affiliation(s)
- M. Efrat
- Department of Nutrition Faculty of Health Sciences Ariel University ArielIsrael
- The Mina and Everard Goodman Faculty of Life Sciences Bar Ilan University Ramat‐GanIsrael
| | - A. Stein
- Department of Obstetrics and Gynecology Infertility and In Vitro Fertilization Unit Belinson Medical Center Petah Tiqva Israel
- Sackler Faculty of Medicine Tel Aviv University Tel Aviv‐Yafo Israel
| | - H. Pinkas
- Department of Obstetrics and Gynecology Infertility and In Vitro Fertilization Unit Belinson Medical Center Petah Tiqva Israel
- Sackler Faculty of Medicine Tel Aviv University Tel Aviv‐Yafo Israel
| | - H. Breitbart
- The Mina and Everard Goodman Faculty of Life Sciences Bar Ilan University Ramat‐GanIsrael
| | - R. Unger
- The Mina and Everard Goodman Faculty of Life Sciences Bar Ilan University Ramat‐GanIsrael
| | - R. Birk
- Department of Nutrition Faculty of Health Sciences Ariel University ArielIsrael
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26
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Sun R, Cui G, Chen Y, Shu B, Zhong G, Yi X. Proteomic Profiling Analysis of Male Infertility in Spodoptera Litura
Larvae Challenged with Azadirachtin and its Potential-Regulated Pathways in the Following Stages. Proteomics 2018; 18:e1800192. [DOI: 10.1002/pmic.201800192] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2018] [Revised: 06/28/2018] [Indexed: 01/03/2023]
Affiliation(s)
- Ranran Sun
- Key Laboratory of Natural Pesticide and Chemical Biology; Ministry of Education; South China Agricultural University; Guangzhou P. R. China
- Key Laboratory of Crop Integrated Pest Management in South China; Ministry of Agriculture; South China Agricultural University; Guangzhou P. R. China
| | - Gaofeng Cui
- Key Laboratory of Natural Pesticide and Chemical Biology; Ministry of Education; South China Agricultural University; Guangzhou P. R. China
- Key Laboratory of Crop Integrated Pest Management in South China; Ministry of Agriculture; South China Agricultural University; Guangzhou P. R. China
| | - Yaoyao Chen
- Key Laboratory of Natural Pesticide and Chemical Biology; Ministry of Education; South China Agricultural University; Guangzhou P. R. China
- Key Laboratory of Crop Integrated Pest Management in South China; Ministry of Agriculture; South China Agricultural University; Guangzhou P. R. China
| | - Benshui Shu
- Key Laboratory of Natural Pesticide and Chemical Biology; Ministry of Education; South China Agricultural University; Guangzhou P. R. China
- Key Laboratory of Crop Integrated Pest Management in South China; Ministry of Agriculture; South China Agricultural University; Guangzhou P. R. China
| | - Guohua Zhong
- Key Laboratory of Natural Pesticide and Chemical Biology; Ministry of Education; South China Agricultural University; Guangzhou P. R. China
- Key Laboratory of Crop Integrated Pest Management in South China; Ministry of Agriculture; South China Agricultural University; Guangzhou P. R. China
| | - Xin Yi
- Key Laboratory of Natural Pesticide and Chemical Biology; Ministry of Education; South China Agricultural University; Guangzhou P. R. China
- Key Laboratory of Crop Integrated Pest Management in South China; Ministry of Agriculture; South China Agricultural University; Guangzhou P. R. China
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Gervasi MG, Xu X, Carbajal-Gonzalez B, Buffone MG, Visconti PE, Krapf D. The actin cytoskeleton of the mouse sperm flagellum is organized in a helical structure. J Cell Sci 2018; 131:jcs.215897. [PMID: 29739876 DOI: 10.1242/jcs.215897] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2018] [Accepted: 04/30/2018] [Indexed: 01/08/2023] Open
Abstract
Conception in mammals is determined by the fusion of a sperm cell with an oocyte during fertilization. Motility is one of the features of sperm that allows them to succeed in fertilization, and their flagellum is essential for this function. Longitudinally, the flagellum can be divided into the midpiece, the principal piece and the end piece. A precise cytoskeletal architecture of the sperm tail is key for the acquisition of fertilization competence. It has been proposed that the actin cytoskeleton plays essential roles in the regulation of sperm motility; however, the actin organization in sperm remains elusive. In the present work, we show that there are different types of actin structures in the sperm tail by using three-dimensional stochastic optical reconstruction microscopy (STORM). In the principal piece, actin is radially distributed between the axoneme and the plasma membrane. The actin-associated proteins spectrin and adducin are also found in these structures. Strikingly, polymerized actin in the midpiece forms a double-helix that accompanies mitochondria. Our findings illustrate a novel specialized structure of actin filaments in a mammalian cell.
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Affiliation(s)
- María G Gervasi
- Department of Veterinary and Animal Sciences, University of Massachusetts, Amherst, MA 01003, USA
| | - Xinran Xu
- Department of Electrical and Computer Engineering, Colorado State University, Fort Collins, CO 80523, USA
| | | | - Mariano G Buffone
- Instituto de Biología y Medicina Experimental, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), C1428ADN Buenos Aires, Argentina
| | - Pablo E Visconti
- Department of Veterinary and Animal Sciences, University of Massachusetts, Amherst, MA 01003, USA
| | - Diego Krapf
- Department of Electrical and Computer Engineering, Colorado State University, Fort Collins, CO 80523, USA .,School of Biomedical Engineering, Colorado State University, Fort Collins, CO 80523, USA
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28
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Asano A, Roman HB, Hirschberger LL, Ushiyama A, Nelson JL, Hinchman MM, Stipanuk MH, Travis AJ. Cysteine dioxygenase is essential for mouse sperm osmoadaptation and male fertility. FEBS J 2018; 285:1827-1839. [PMID: 29604178 PMCID: PMC5992081 DOI: 10.1111/febs.14449] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2017] [Revised: 02/11/2018] [Accepted: 03/26/2018] [Indexed: 01/17/2023]
Abstract
Sperm entering the epididymis are immotile and cannot respond to stimuli that will enable them to fertilize. The epididymis is a highly complex organ, with multiple histological zones and cell types that together change the composition and functional abilities of sperm through poorly understood mechanisms. Sperm take up taurine during epididymal transit, which may play antioxidant or osmoregulatory roles. Cysteine dioxygenase (CDO) is a critical enzyme for taurine synthesis. A previous study reported that male CDO-/- mice exhibit idiopathic infertility, prompting us to investigate the functions of CDO in male fertility. Immunoblotting and quantitative reverse transcription-polymerase chain reaction analysis of epididymal segments showed that androgen-dependent CDO expression was highest in the caput epididymidis. CDO-/- mouse sperm demonstrated a severe lack of in vitro fertilization ability. Acrosome exocytosis and tyrosine phosphorylation profiles in response to stimuli were normal, suggesting normal functioning of pathways associated with capacitation. CDO-/- sperm had a slight increase in head abnormalities. Taurine and hypotaurine concentrations in CDO-/- sperm decreased in the epididymal intraluminal fluid and sperm cytosol. We found no evidence of antioxidant protection against lipid peroxidation. However, CDO-/- sperm exhibited severe defects in volume regulation, swelling in response to the relatively hypo-osmotic conditions found in the female reproductive tract. Our findings suggest that epididymal CDO plays a key role in post-testicular sperm maturation, enabling sperm to osmoregulate as they transition from the male to the female reproductive tract, and provide new understanding of the compartmentalized functions of the epididymis.
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Affiliation(s)
- Atsushi Asano
- Faculty of Life and Environmental Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
- The Baker Institute for Animal Health, Cornell University, Ithaca New York 14853
| | - Heather B. Roman
- Department of Nutritional Sciences, Cornell University, Ithaca, New York 14853
| | | | - Ai Ushiyama
- Graduate School of Life and Environmental Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - Jacquelyn L. Nelson
- The Baker Institute for Animal Health, Cornell University, Ithaca New York 14853
| | - Meleana M. Hinchman
- The Baker Institute for Animal Health, Cornell University, Ithaca New York 14853
| | - Martha H. Stipanuk
- Department of Nutritional Sciences, Cornell University, Ithaca, New York 14853
| | - Alexander J. Travis
- The Baker Institute for Animal Health, Cornell University, Ithaca New York 14853
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Ordinelli A, Bernabò N, Orsini M, Mattioli M, Barboni B. Putative human sperm Interactome: a networks study. BMC SYSTEMS BIOLOGY 2018; 12:52. [PMID: 29642908 PMCID: PMC5896140 DOI: 10.1186/s12918-018-0578-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/21/2017] [Accepted: 03/27/2018] [Indexed: 11/17/2022]
Abstract
Background For over sixty years, it has been known that mammalian spermatozoa immediately after ejaculation are virtually infertile. They became able to fertilize only after they reside for long time (hours to days) within female genital tract where they complete their functional maturation, the capacitation. This process is finely regulated by the interaction with the female environment and involves, in spermatozoa, a myriad of molecules as messengers and target of signals. Since, to date, a model able to represent the molecular interaction that characterize sperm physiology does not exist, we realized the Human Sperm Interactme Network3.0 (HSIN3.0) and its main component (HSNI3.0_MC), starting from the pathway active in male germ cells. Results HSIN3.0 and HSIN3.0_MC are scale free networks, adherent to the Barabasi-Albert model, and are characterised by an ultra-small world topology. We found that they are resistant to random attacks and that are designed to respond quickly and specifically to external inputs. In addition, it has been possible to identify the most connected nodes (the hubs) and the bottlenecks nodes. This result allowed us to explore the control mechanisms active in driving sperm biochemical machinery and to verify the different levels of controls: party vs. date hubs and hubs vs. bottlenecks, thanks the availability of data from KO mice. Finally, we found that several key nodes represent molecules specifically involved in function that are thought to be not present or not active in sperm cells, such as control of cell cycle, proteins synthesis, nuclear trafficking, and immune response, thus potentially open new perspectives on the study of sperm biology. Conclusions For the first time we present a network representing putative human sperm interactome. This result gives very intriguing biological information and could contribute to the knowledge of spermatozoa, either in physiological or pathological conditions. Electronic supplementary material The online version of this article (10.1186/s12918-018-0578-6) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Alessandra Ordinelli
- Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, Teramo, Italy
| | - Nicola Bernabò
- Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, Teramo, Italy.
| | | | - Mauro Mattioli
- Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, Teramo, Italy.,Istituto Zooprofilattico Sperimentale "G. Caporale", Teramo, Italy
| | - Barbara Barboni
- Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, Teramo, Italy
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30
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Breitbart H, Finkelstein M. Actin cytoskeleton and sperm function. Biochem Biophys Res Commun 2017; 506:372-377. [PMID: 29102633 DOI: 10.1016/j.bbrc.2017.11.001] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2017] [Accepted: 11/01/2017] [Indexed: 11/17/2022]
Abstract
For the acquisition of the ability to fertilize the egg, mammalian spermatozoa should undergo a series of biochemical transformations in the female reproductive tract, collectively called capacitation. The capacitated sperm can undergo the acrosomal exocytosis process near or on the oocyte, which allows the spermatozoon to penetrate and fertilize it. One of the main processes in capacitation involves dynamic cytoskeletal remodeling particularly of actin. Actin polymerization occurs during sperm capacitation and the produced F-actin should be depolymerized prior to the acrosomal exocytosis. In the present review, we describe the mechanisms that regulate F-actin formation during sperm capacitation and the F-actin dispersion prior to the acrosomal exocytosis. During sperm capacitation, the actin severing proteins gelsolin and cofilin are inactive and they undergo activation prior to the acrosomal exocytosis.
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Affiliation(s)
- Haim Breitbart
- The Mina & Everard Faculty of Life Sciences, Bar-Ilan University, Ramat-Gan 5290002, Israel.
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Schröter F, Müller K, Müller P, Krause E, Braun BC. Recombinant expression of porcine spermadhesin AWN and its phospholipid interaction: Indication for a novel lipid binding property. Reprod Domest Anim 2017; 52:585-595. [PMID: 28326614 DOI: 10.1111/rda.12953] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2016] [Accepted: 02/07/2017] [Indexed: 01/05/2023]
Abstract
AWN is a porcine (Sus scrofa domestica) seminal plasma protein and has been linked to a variety of processes related to fertilization. To acquire the protein in sufficient amount and purity for functional studies, we established its recombinant expression in E. coli and a three-step purification protocol based on different chromatographies. The test for AWN-phospholipid interaction revealed phosphatidic acid and cardiolipin as potential binding partners. As phosphatidic acid is surmised to play a role in cation-induced membrane destabilization and fusion events, we propose a membrane protective function of the presented binding affinity. Further studies with recombinant AWN will allow new insights into the mechanism of sperm-spermadhesin interaction and might provide new approaches for artificial reproduction techniques.
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Affiliation(s)
- F Schröter
- Department Reproduction Biology, Leibniz Institute for Zoo and Wildlife Research, Berlin, Germany
| | - K Müller
- Department Reproduction Biology, Leibniz Institute for Zoo and Wildlife Research, Berlin, Germany
| | - P Müller
- Department of Biology/Biophysics, Humboldt University of Berlin, Berlin, Germany
| | - E Krause
- Department Mass Spectrometry, Leibniz Institute for Molecular Pharmacology, Berlin, Germany
| | - B C Braun
- Department Reproduction Biology, Leibniz Institute for Zoo and Wildlife Research, Berlin, Germany
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32
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Angeles-Floriano T, Roa-Espitia AL, Baltiérrez-Hoyos R, Cordero-Martínez J, Elizondo G, Hernández-González EO. Absence of aryl hydrocarbon receptor alters CDC42 expression and prevents actin polymerization during capacitation. Mol Reprod Dev 2016; 83:1015-1026. [DOI: 10.1002/mrd.22736] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2016] [Accepted: 09/12/2016] [Indexed: 11/06/2022]
Affiliation(s)
- Tania Angeles-Floriano
- Departamento de Biología Celular; CINVESTAV-IPN; Av. Instituto Politécnico Nacional 2508; CP 07360; México DF México
| | - Ana L. Roa-Espitia
- Departamento de Biología Celular; CINVESTAV-IPN; Av. Instituto Politécnico Nacional 2508; CP 07360; México DF México
| | - Rafael Baltiérrez-Hoyos
- Facultad de Medicina y Cirugía; Universidad Autónoma Benito Juárez de Oaxaca; Oaxaca; Cátedras CONACYT
| | - Joaquin Cordero-Martínez
- Departamento de Biología Celular; CINVESTAV-IPN; Av. Instituto Politécnico Nacional 2508; CP 07360; México DF México
| | - Guillermo Elizondo
- Departamento de Biología Celular; CINVESTAV-IPN; Av. Instituto Politécnico Nacional 2508; CP 07360; México DF México
| | - Enrique O. Hernández-González
- Departamento de Biología Celular; CINVESTAV-IPN; Av. Instituto Politécnico Nacional 2508; CP 07360; México DF México
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Roa-Espitia AL, Hernández-Rendón ER, Baltiérrez-Hoyos R, Muñoz-Gotera RJ, Cote-Vélez A, Jiménez I, González-Márquez H, Hernández-González EO. Focal adhesion kinase is required for actin polymerization and remodeling of the cytoskeleton during sperm capacitation. Biol Open 2016; 5:1189-99. [PMID: 27402964 PMCID: PMC5051654 DOI: 10.1242/bio.017558] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
Several focal adhesion proteins are known to cooperate with integrins to link the extracellular matrix to the actin cytoskeleton; as a result, many intracellular signaling pathways are activated and several focal adhesion complexes are formed. However, how these proteins function in mammalian spermatozoa remains unknown. We confirm the presence of focal adhesion proteins in guinea pig spermatozoa, and we explore their role during capacitation and the acrosome reaction, and their relationship with the actin cytoskeleton. Our results suggest the presence of a focal adhesion complex formed by β1-integrin, focal adhesion kinase (FAK), paxillin, vinculin, talin, and α-actinin in the acrosomal region. Inhibition of FAK during capacitation affected the protein tyrosine phosphorylation associated with capacitation that occurs within the first few minutes of capacitation, which caused the acrosome reaction to become increasingly Ca2+ dependent and inhibited the polymerization of actin. The integration of vinculin and talin into the complex, and the activation of FAK and paxillin during capacitation, suggests that the complex assembles at this time. We identify that vinculin and α-actinin increase their interaction with F-actin while it remodels during capacitation, and that during capacitation focal adhesion complexes are structured. FAK contributes to acrosome integrity, likely by regulating the polymerization and the remodeling of the actin cytoskeleton. Summary: We describe the role of FAK and focal adhesion proteins in capacitation, acrosome reaction, polymerization and remodeling of actin cytoskeleton, and how inhibition of FAK affects sperm physiology.
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Affiliation(s)
- Ana L Roa-Espitia
- Departamento de Biología Celular, Centro de Investigación y Estudios Avanzados del Instituto Politécnico Nacional, México D.F. 07360, México Posgrado en Biología Experimental, Universidad Autónoma Metropolitana-Iztapalapa, México D.F. 09349, México
| | - Eva R Hernández-Rendón
- Departamento de Biología Celular, Centro de Investigación y Estudios Avanzados del Instituto Politécnico Nacional, México D.F. 07360, México
| | - Rafael Baltiérrez-Hoyos
- Universidad Autónoma Benito Juárez de Oaxaca, Facultad de Medicina y Cirugía, Oaxaca, Oaxaca 68120, México
| | | | - Antonieta Cote-Vélez
- Departamento de Genética del Desarrollo y Fisiología Molecular, Instituto de Biotecnología, Universidad Nacional Autónoma de México 62210, Cuernavaca, México
| | - Irma Jiménez
- Posgrado en Biología Experimental, Universidad Autónoma Metropolitana-Iztapalapa, México D.F. 09349, México
| | - Humberto González-Márquez
- Departamento de Ciencias de la Salud, Universidad Autónoma Metropolitana-Iztapalapa, México D.F. 09349, México
| | - Enrique O Hernández-González
- Departamento de Biología Celular, Centro de Investigación y Estudios Avanzados del Instituto Politécnico Nacional, México D.F. 07360, México
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Jiang Y, Sverdlov MS, Toth PT, Huang LS, Du G, Liu Y, Natarajan V, Minshall RD. Phosphatidic Acid Produced by RalA-activated PLD2 Stimulates Caveolae-mediated Endocytosis and Trafficking in Endothelial Cells. J Biol Chem 2016; 291:20729-38. [PMID: 27510034 DOI: 10.1074/jbc.m116.752485] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2016] [Indexed: 11/06/2022] Open
Abstract
Caveolae are the primary route for internalization and transendothelial transport of macromolecules, such as insulin and albumin. Caveolae-mediated endocytosis is activated by Src-dependent caveolin-1 (Cav-1) phosphorylation and subsequent recruitment of dynamin-2 and filamin A (FilA), which facilitate vesicle fission and trafficking, respectively. Here, we tested the role of RalA and phospholipase D (PLD) signaling in the regulation of caveolae-mediated endocytosis and trafficking. The addition of albumin to human lung microvascular endothelial cells induced the activation of RalA within minutes, and siRNA-mediated down-regulation of RalA abolished fluorescent BSA uptake. Co-immunoprecipitation studies revealed that albumin induced the association between RalA, Cav-1, and FilA; however, RalA knockdown with siRNA did not affect FilA recruitment to Cav-1, suggesting that RalA was not required for FilA and Cav-1 complex formation. Rather, RalA probably facilitates caveolae-mediated endocytosis by activating downstream effectors. PLD2 was shown to be activated by RalA, and inhibition of PLD2 abolished Alexa-488-BSA uptake, indicating that phosphatidic acid (PA) generated by PLD2 may facilitate caveolae-mediated endocytosis. Furthermore, using a PA biosensor, GFP-PASS, we observed that BSA induced an increase in PA co-localization with Cav-1-RFP, which could be blocked by a dominant negative PLD2 mutant. Total internal reflection fluorescence microscopy studies of Cav-1-RFP also showed that fusion of caveolae with the basal plasma membrane was dependent on PLD2 activity. Thus, our results suggest that the small GTPase RalA plays an important role in promoting invagination and trafficking of caveolae, not by potentiating the association between Cav-1 and FilA but by stimulating PLD2-mediated generation of phosphatidic acid.
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Affiliation(s)
- Ying Jiang
- From the School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu, Sichuan 610054, China, the Departments of Anesthesiology
| | | | | | - Long Shuang Huang
- Pharmacology, and Medicine, College of Medicine, University of Illinois at Chicago, Chicago, Illinois 60612, and
| | - Guangwei Du
- the Departments of Integrative Biology and Pharmacology, University of Texas Health Science Center, Houston, Texas 77030
| | - Yiyao Liu
- From the School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu, Sichuan 610054, China
| | - Viswanathan Natarajan
- Pharmacology, and Medicine, College of Medicine, University of Illinois at Chicago, Chicago, Illinois 60612, and
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Phosphatidic acid binding proteins display differential binding as a function of membrane curvature stress and chemical properties. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2016; 1858:2709-2716. [PMID: 27480805 DOI: 10.1016/j.bbamem.2016.07.014] [Citation(s) in RCA: 59] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2016] [Revised: 07/12/2016] [Accepted: 07/27/2016] [Indexed: 01/16/2023]
Abstract
Phosphatidic acid (PA) is a crucial membrane phospholipid involved in de novo lipid synthesis and numerous intracellular signaling cascades. The signaling function of PA is mediated by peripheral membrane proteins that specifically recognize PA. While numerous PA-binding proteins are known, much less is known about what drives specificity of PA-protein binding. Previously, we have described the ionization properties of PA, summarized in the electrostatic-hydrogen bond switch, as one aspect that drives the specific binding of PA by PA-binding proteins. Here we focus on membrane curvature stress induced by phosphatidylethanolamine and show that many PA-binding proteins display enhanced binding as a function of negative curvature stress. This result is corroborated by the observation that positive curvature stress, induced by lyso phosphatidylcholine, abolishes PA binding of target proteins. We show, for the first time, that a novel plant PA-binding protein, Arabidopsis Epsin-like Clathrin Adaptor 1 (ECA1) displays curvature-dependence in its binding to PA. Other established PA targets examined in this study include, the plant proteins TGD2, and PDK1, the yeast proteins Opi1 and Spo20, and, the mammalian protein Raf-1 kinase and the C2 domain of the mammalian phosphatidylserine binding protein Lact as control. Based on our observations, we propose that liposome binding assays are the preferred method to investigate lipid binding compared to the popular lipid overlay assays where membrane environment is lost. The use of complex lipid mixtures is important to elucidate further aspects of PA binding proteins.
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Delgado-Buenrostro NL, Mújica A, Chiquete-Felix N, Déciga-Alcaraz A, Medina-Reyes EI, Uribe-Carvajal S, Chirino YI. Role of Wasp and the small GTPases RhoA, RhoB, and Cdc42 during capacitation and acrosome reaction in spermatozoa of English guinea pigs. Mol Reprod Dev 2016; 83:927-937. [PMID: 27182927 DOI: 10.1002/mrd.22657] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2016] [Accepted: 05/07/2016] [Indexed: 11/08/2022]
Abstract
Cytoskeleton remodeling is necessary for capacitation and the acrosome reaction in spermatozoa. F-actin is located in the acrosome and equatorial region during capacitation, but is relocated in the post-acrosomal region during the acrosome reaction in spermatozoa from bull, rat, mice, and guinea pig. Actin polymerization and relocalization are generally regulated by small GTPases that activate Wasp protein, which coordinates with Arp2/3, profilin I, and profilin II to complete cytoskeletal remodeling. This sequence of events is not completely described in spermatozoa, though. Therefore, the aim of this study was to determine if Wasp interacts with small GTPases (RhoA, RhoB, and Cdc42) and proteins (Arp2/3, profilin I, and profilin II) that co-localize with F-actin during capacitation and the acrosome reaction in English guinea pig spermatozoa obtained from the vas deferens. The spermatozoa were capacitated in calcium-free medium, incubated with an activator or an inhibitor of GTPases, and then induced to acrosome react using calcium. The distribution patterns of F-actin were compared to the patterns of Wasp and its putative interaction partners: Wasp and RhoB, but not RhoA or Cdc42, localization overlap with F-actin during capacitation and the acrosome reaction. Activation of small GTPases localized RhoB to the post-acrosomal region whereas their inhibition prevented acrosome exocytosis. Arp2/3 and profilin II appear to interact with Wasp in the post-acrosomal region and flagellum, while profilin I and Wasp could be found in the equatorial region. Thus, Wasp and F-actin distribution overlap during capacitation and acrosome reaction, and small GTPases play an important role in cytoskeleton remodeling during these processes in spermatozoa. Mol. Reprod. Dev. 83: 927-937, 2016 © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Norma L Delgado-Buenrostro
- Unidad de Biomedicina UBIMED, Facultad de Estudios Superiores Iztacala, Universidad Nacional Autónoma de México, Tlalnepantla, Estado de México, CP 54090.,Sección de Bioquímica y Farmacología Humana, Facultad de Estudios Superiores Cuautitlán, Universidad Nacional Autónoma de México, Cuautitlán, Estado de México, CP 54743
| | - Adela Mújica
- Departamento de Biología Celular, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, México DF, México, CP 07360
| | - Natalia Chiquete-Felix
- Instituto de Fisiología Celular, Universidad Nacional Autónoma de México, México DF, México, CP 04510
| | - Alejandro Déciga-Alcaraz
- Unidad de Biomedicina UBIMED, Facultad de Estudios Superiores Iztacala, Universidad Nacional Autónoma de México, Tlalnepantla, Estado de México, CP 54090.,Programa de Doctorado en Ciencias Biomédicas, Universidad Nacional Autónoma de México, CP 07360
| | - Estefany I Medina-Reyes
- Unidad de Biomedicina UBIMED, Facultad de Estudios Superiores Iztacala, Universidad Nacional Autónoma de México, Tlalnepantla, Estado de México, CP 54090.,Programa de Doctorado en Ciencias Biomédicas, Universidad Nacional Autónoma de México, CP 07360
| | - Salvador Uribe-Carvajal
- Instituto de Fisiología Celular, Universidad Nacional Autónoma de México, México DF, México, CP 04510
| | - Yolanda I Chirino
- Unidad de Biomedicina UBIMED, Facultad de Estudios Superiores Iztacala, Universidad Nacional Autónoma de México, Tlalnepantla, Estado de México, CP 54090.
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Shabtay O, Breitbart H. CaMKII prevents spontaneous acrosomal exocytosis in sperm through induction of actin polymerization. Dev Biol 2016; 415:64-74. [PMID: 27178669 DOI: 10.1016/j.ydbio.2016.05.008] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2016] [Revised: 05/08/2016] [Accepted: 05/09/2016] [Indexed: 02/01/2023]
Abstract
In order to interact with the egg and undergo acrosomal exocytosis or the acrosome reaction (AR), mammalian spermatozoa must undergo a series of biochemical changes in the female reproductive tract, collectively called capacitation. We showed that F-actin is formed during sperm capacitation and fast depolymerization occurs prior to the AR. We hypothesized that F-actin protects the sperm from undergoing spontaneous-AR (sAR) which decreases fertilization rate. We show that activation of the actin-severing protein gelsolin induces a significant increase in sAR. Moreover, inhibition of CaMKII or PLD during sperm capacitation, caused an increase in sAR and inhibition of F-actin formation. Spermine, which leads to PLD activation, was able to reverse the effects of CaMKII inhibition on sAR-increase and F-actin-decrease. Furthermore, the increase in sAR and the decrease in F-actin caused by the inactivation of the PLD-pathway, were reversed by activation of CaMKII using H2O2 or by inhibiting protein phosphatase 1 which enhance the phosphorylation and oxidation states of CaMKII. These results indicate that two distinct pathways lead to F-actin formation in the sperm capacitation process which prevents the occurrence of sAR.
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Affiliation(s)
- Ortal Shabtay
- The Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Ramat-Gan 5290002, Israel
| | - Haim Breitbart
- The Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Ramat-Gan 5290002, Israel.
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Breitbart H, Finkelstein M. Regulation of Sperm Capacitation and the Acrosome Reaction by PIP 2 and Actin Modulation. Asian J Androl 2016; 17:597-600. [PMID: 25966627 PMCID: PMC4492050 DOI: 10.4103/1008-682x.154305] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
Actin polymerization and development of hyperactivated (HA) motility are two processes that take place during sperm capacitation. Actin polymerization occurs during capacitation and prior to the acrosome reaction, fast F-actin breakdown takes place. The increase in F-actin during capacitation depends upon inactivation of the actin severing protein, gelsolin, by its binding to phosphatydilinositol-4, 5-bisphosphate (PIP 2 ) and its phosphorylation on tyrosine-438 by Src. Activation of gelsolin following its release from PIP 2 is known to cause F-actin breakdown and inhibition of sperm motility, which can be restored by adding PIP 2 to the cells. Reduction of PIP 2 synthesis inhibits actin polymerization and motility, while increasing PIP 2 synthesis enhances these activities. Furthermore, sperm demonstrating low motility contained low levels of PIP 2 and F-actin. During capacitation there was an increase in PIP 2 and F-actin levels in the sperm head and a decrease in the tail. In spermatozoa with high motility, gelsolin was mainly localized to the sperm head before capacitation, whereas in low motility sperm, most of the gelsolin was localized to the tail before capacitation and translocated to the head during capacitation. We also showed that phosphorylation of gelsolin on tyrosine-438 depends upon its binding to PIP 2 . Stimulation of phospholipase C, by Ca 2 + -ionophore or by activating the epidermal-growth-factor-receptor, inhibits tyrosine phosphorylation of gelsolin and enhances enzyme activity. In conclusion, these data indicate that the increase of PIP 2 and/or F-actin in the head during capacitation enhances gelsolin translocation to the head. As a result, the decrease of gelsolin in the tail allows the maintenance of high levels of F-actin in this structure, which is essential for the development of HA motility.
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Affiliation(s)
- Haim Breitbart
- The Mina and Everard Faculty of Life Sciences, Bar-Ilan University, Ramat-Gan, Israel
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Lee JS, Kwon WS, Rahman MS, Yoon SJ, Park YJ, Pang MG. Actin-related protein 2/3 complex-based actin polymerization is critical for male fertility. Andrology 2015. [DOI: 10.1111/andr.12076] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- J.-S. Lee
- Department of Animal Science and Technology; Chung-Ang University; Anseong Korea
| | - W.-S. Kwon
- Department of Animal Science and Technology; Chung-Ang University; Anseong Korea
| | - M. S. Rahman
- Department of Animal Science and Technology; Chung-Ang University; Anseong Korea
| | - S.-J. Yoon
- Department of Animal Science and Technology; Chung-Ang University; Anseong Korea
| | - Y.-J. Park
- Department of Animal Science and Technology; Chung-Ang University; Anseong Korea
| | - M.-G. Pang
- Department of Animal Science and Technology; Chung-Ang University; Anseong Korea
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Romarowski A, Battistone MA, La Spina FA, Puga Molina LDC, Luque GM, Vitale AM, Cuasnicu PS, Visconti PE, Krapf D, Buffone MG. PKA-dependent phosphorylation of LIMK1 and Cofilin is essential for mouse sperm acrosomal exocytosis. Dev Biol 2015; 405:237-49. [PMID: 26169470 DOI: 10.1016/j.ydbio.2015.07.008] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2015] [Revised: 07/01/2015] [Accepted: 07/09/2015] [Indexed: 02/06/2023]
Abstract
Mammalian sperm must acquire their fertilizing ability after a series of biochemical modifications in the female reproductive tract collectively called capacitation to undergo acrosomal exocytosis, a process that is essential for fertilization. Actin dynamics play a central role in controlling the process of exocytosis in somatic cells as well as in sperm from several mammalian species. In somatic cells, small GTPases of the Rho family are widely known as master regulators of actin dynamics. However, the role of these proteins in sperm has not been studied in detail. In the present work we characterized the participation of small GTPases of the Rho family in the signaling pathway that leads to actin polymerization during mouse sperm capacitation. We observed that most of the proteins of this signaling cascade and their effector proteins are expressed in mouse sperm. The activation of the signaling pathways of cAMP/PKA, RhoA/C and Rac1 is essential for LIMK1 activation by phosphorylation on Threonine 508. Serine 3 of Cofilin is phosphorylated by LIMK1 during capacitation in a transiently manner. Inhibition of LIMK1 by specific inhibitors (BMS-3) resulted in lower levels of actin polymerization during capacitation and a dramatic decrease in the percentage of sperm that undergo acrosomal exocytosis. Thus, we demonstrated for the first time that the master regulators of actin dynamics in somatic cells are present and active in mouse sperm. Combining the results of our present study with other results from the literature, we have proposed a working model regarding how LIMK1 and Cofilin control acrosomal exocytosis in mouse sperm.
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Affiliation(s)
- Ana Romarowski
- Instituto de Biología y Medicina Experimental (IBYME), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
| | - María A Battistone
- Instituto de Biología y Medicina Experimental (IBYME), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
| | - Florenza A La Spina
- Instituto de Biología y Medicina Experimental (IBYME), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
| | - Lis del C Puga Molina
- Instituto de Biología y Medicina Experimental (IBYME), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
| | - Guillermina M Luque
- Instituto de Biología y Medicina Experimental (IBYME), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
| | - Alejandra M Vitale
- Instituto de Biología y Medicina Experimental (IBYME), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
| | - Patricia S Cuasnicu
- Instituto de Biología y Medicina Experimental (IBYME), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
| | - Pablo E Visconti
- Department of Veterinary and Animal Science, Paige Labs, University of Massachusets, Amherst, MA 01003, USA
| | - Darío Krapf
- Instituto de Biología Molecular y Celular de Rosario (CONICET-UNR), Rosario 2000 Argentina
| | - Mariano G Buffone
- Instituto de Biología y Medicina Experimental (IBYME), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina.
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The role and importance of cofilin in human sperm capacitation and the acrosome reaction. Cell Tissue Res 2015; 362:665-75. [DOI: 10.1007/s00441-015-2229-1] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2014] [Accepted: 05/20/2015] [Indexed: 10/23/2022]
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Stith BJ. Phospholipase C and D regulation of Src, calcium release and membrane fusion during Xenopus laevis development. Dev Biol 2015; 401:188-205. [PMID: 25748412 DOI: 10.1016/j.ydbio.2015.02.020] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2015] [Revised: 02/15/2015] [Accepted: 02/24/2015] [Indexed: 11/28/2022]
Abstract
This review emphasizes how lipids regulate membrane fusion and the proteins involved in three developmental stages: oocyte maturation to the fertilizable egg, fertilization and during first cleavage. Decades of work show that phosphatidic acid (PA) releases intracellular calcium, and recent work shows that the lipid can activate Src tyrosine kinase or phospholipase C during Xenopus fertilization. Numerous reports are summarized to show three levels of increase in lipid second messengers inositol 1,4,5-trisphosphate and sn 1,2-diacylglycerol (DAG) during the three different developmental stages. In addition, possible roles for PA, ceramide, lysophosphatidylcholine, plasmalogens, phosphatidylinositol 4-phosphate, phosphatidylinositol 5-phosphate, phosphatidylinositol 4,5-bisphosphate, membrane microdomains (rafts) and phosphatidylinositol 3,4,5-trisphosphate in regulation of membrane fusion (acrosome reaction, sperm-egg fusion, cortical granule exocytosis), inositol 1,4,5-trisphosphate receptors, and calcium release are discussed. The role of six lipases involved in generating putative lipid second messengers during fertilization is also discussed: phospholipase D, autotaxin, lipin1, sphingomyelinase, phospholipase C, and phospholipase A2. More specifically, proteins involved in developmental events and their regulation through lipid binding to SH3, SH4, PH, PX, or C2 protein domains is emphasized. New models are presented for PA activation of Src (through SH3, SH4 and a unique domain), that this may be why the SH2 domain of PLCγ is not required for Xenopus fertilization, PA activation of phospholipase C, a role for PA during the calcium wave after fertilization, and that calcium/calmodulin may be responsible for the loss of Src from rafts after fertilization. Also discussed is that the large DAG increase during fertilization derives from phospholipase D production of PA and lipin dephosphorylation to DAG.
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Affiliation(s)
- Bradley J Stith
- University of Colorado Denver, Department of Integrative Biology, Campus Box 171, PO Box 173364, Denver, CO 80217-3364, United States.
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Mizuno Y, Isono A, Kojima A, Arai MM, Noda T, Sakase M, Fukushima M, Harayama H. Distinct segment-specific functions of calyculin A-sensitive protein phosphatases in the regulation of cAMP-triggered events in ejaculated bull spermatozoa. Mol Reprod Dev 2015; 82:232-50. [PMID: 25735235 DOI: 10.1002/mrd.22465] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2014] [Accepted: 02/02/2015] [Indexed: 12/19/2022]
Abstract
Livestock spermatozoa possess more tenacious suppressors of cAMP-triggered events-including capacitation-associated changes-than laboratory animal spermatozoa, leading to flagellar hyperactivation. In order to identify the suppressors, we examined effects of an inhibitor of serine/threonine protein phosphatases (calyculin A) on cAMP-triggered changes in the protein phosphorylation state, and subsequent occurrence of hyperactivation and acrosome reaction in ejaculated bull spermatozoa. Ejaculated spermatozoa were incubated in cAMP-supplemented medium, then assessed for motility, acrosome morphology, and phosphorylated protein localization. The addition of calyculin A greatly enhanced cAMP-triggered protein phosphorylation at serine/threonine and tyrosine residues in the connecting piece and induction of flagellar hyperactivation. Most hyperactivated spermatozoa exhibited extremely asymmetrical bends at the middle piece, which produced intensive twisting or figure-eight movements. In the sperm head, however, cAMP-triggered dephosphorylation of serine/threonine-phosphorylated proteins and subsequent acrosome reaction were abolished by the addition of calyculin A. Based on these results, we suggest that calyculin A-sensitive protein phosphatases in the connecting piece are suppressors of cAMP-triggered events leading to hyperactivation. By contrast, similar protein phosphatases in the sperm head accelerate cAMP-triggered events leading to the acrosome reaction. These findings are consistent with the indication that calyculin A-sensitive protein phosphatases have distinct functions in the regulation of cAMP-triggered events in different regions of ejaculated bull spermatozoa.
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Affiliation(s)
- Yohei Mizuno
- Laboratory of Reproductive Biology, Division of Animal Science, Department of Bioresource Science, Graduate School of Agricultural Science, Kobe University, Kobe, 657-8501, Japan
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Shahar S, Hillman P, Lubart R, Ickowicz D, Breitbart H. Activation of sperm EGFR by light irradiation is mediated by reactive oxygen species. Photochem Photobiol 2014; 90:1077-83. [PMID: 24724551 DOI: 10.1111/php.12281] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2014] [Accepted: 04/07/2014] [Indexed: 12/21/2022]
Abstract
To acquire fertilization competence, spermatozoa must undergo several biochemical and motility changes in the female reproductive tract, collectively called capacitation. Actin polymerization and the development of hyperactivated motility (HAM) are part of the capacitation process. In a recent study, we showed that irradiation of human sperm with visible light stimulates HAM through a mechanism involving reactive-oxygen-species (ROS), Ca(2+) influx, protein kinases A (PKA), and sarcoma protein kinase (Src). Here, we showed that this effect of light on HAM is mediated by ROS-dependent activation of the epidermal growth factor receptor (EGFR). Interestingly, ROS-mediated HAM even when the EGFR was activated by EGF, the physiological ligand of EGFR. Light irradiation stimulated ROS-dependent actin polymerization, and this effect was abrogated by PBP10, a peptide which activates the actin-severing protein, gelsolin, and causes actin-depolymerization in human sperm. Light-stimulated tyrosine phosphorylation of Src-dependent gelsolin, resulting in enhanced HAM. Thus, light irradiation stimulates HAM through a mechanism involving Src-mediated actin polymerization. Light-stimulated HAM and in vitro-fertilization (IVF) rate in mouse sperm, and these effects were mediated by ROS and EGFR. In conclusion, we show here that irradiation of sperm with visible light, enhances their fertilization capacity via a mechanism requiring ROS, EGFR and HAM.
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Affiliation(s)
- Shiran Shahar
- The Mina & Everard Faculty of Life Sciences, Bar-Ilan University, Ramat-Gan, Israel
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Calabrese B, Saffin JM, Halpain S. Activity-dependent dendritic spine shrinkage and growth involve downregulation of cofilin via distinct mechanisms. PLoS One 2014; 9:e94787. [PMID: 24740405 PMCID: PMC3989342 DOI: 10.1371/journal.pone.0094787] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2013] [Accepted: 03/19/2014] [Indexed: 01/09/2023] Open
Abstract
A current model posits that cofilin-dependent actin severing negatively impacts dendritic spine volume. Studies suggested that increased cofilin activity underlies activity-dependent spine shrinkage, and that reduced cofilin activity induces activity-dependent spine growth. We suggest instead that both types of structural plasticity correlate with decreased cofilin activity. However, the mechanism of inhibition determines the outcome for spine morphology. RNAi in rat hippocampal cultures demonstrates that cofilin is essential for normal spine maintenance. Cofilin-F-actin binding and filament barbed-end production decrease during the early phase of activity-dependent spine shrinkage; cofilin concentration also decreases. Inhibition of the cathepsin B/L family of proteases prevents both cofilin loss and spine shrinkage. Conversely, during activity-dependent spine growth, LIM kinase stimulates cofilin phosphorylation, which activates phospholipase D-1 to promote actin polymerization. These results implicate novel molecular mechanisms and prompt a revision of the current model for how cofilin functions in activity-dependent structural plasticity.
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Affiliation(s)
- Barbara Calabrese
- Division of Biological Sciences, and Sanford Consortium for Regenerative Medicine, University of California San Diego, La Jolla, California, United States of America
| | - Jean-Michel Saffin
- Division of Biological Sciences, and Sanford Consortium for Regenerative Medicine, University of California San Diego, La Jolla, California, United States of America
| | - Shelley Halpain
- Division of Biological Sciences, and Sanford Consortium for Regenerative Medicine, University of California San Diego, La Jolla, California, United States of America
- * E-mail:
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Cordero-Martínez J, Aguirre-Alvarado C, Wong C, Rodríguez-Páez L. Effect of oxamic analogues on functional mice sperm parameters. Syst Biol Reprod Med 2014; 60:189-98. [PMID: 24654556 DOI: 10.3109/19396368.2014.902144] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
The present study evaluates the effect of oxamate derivatives (N-ethyl, N-propyl, N-butyl oxamates) on functional murine sperm parameters, towards a new male non-hormonal contraceptive. These derivatives are selective inhibitors of lactate dehydrogenase-C4 (LDH-C4). LDH-C4 is a sperm-specific enzyme that plays an important role in ATP production for maintaining progressive motility as well as to induce capacitation and hyperactivation. The results demonstrate that all oxamate derivatives selectively inhibited LDH-C4 in mouse sperm extracts. The IC(50) values for hexokinase and glyceraldehyde-3-phosphate dehydrogenase were at least an order of magnitude greater than LDH-C4 IC(50) values. Prodrugs of oxamate derivatives assayed on sperm cells diminished normal sperm motility parameters, acrosome reaction, and cell viability in a concentration dependent manner. Also, we performed in vivo studies to determine the potential toxicity and possible contraceptive ability of these inhibitors. Mouse sperm were more sensitive to the N-butyl oxamate ethyl ester (NBOXet). Furthermore, results showed that NBOXet was of a low toxicity substance that diminished the total and progressive motility as well as the kinematic parameters of sperm cells. Data from in vitro and in vivo studies showed that N-butyl oxamate and its prodrug, are selective inhibitors of sperm LDH-C4, has low toxicity, and inhibits sperm progressive motility, offering some of the desirable characteristics of a male contraceptive: effect, low toxicity, and selectivity.
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Affiliation(s)
- Joaquín Cordero-Martínez
- Departamento de Bioquímica, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional , México
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Finkelstein M, Megnagi B, Ickowicz D, Breitbart H. Regulation of sperm motility by PIP2(4,5) and actin polymerization. Dev Biol 2013; 381:62-72. [DOI: 10.1016/j.ydbio.2013.06.014] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2012] [Revised: 04/17/2013] [Accepted: 06/10/2013] [Indexed: 11/24/2022]
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Battistone MA, Da Ros VG, Salicioni AM, Navarrete FA, Krapf D, Visconti PE, Cuasnicú PS. Functional human sperm capacitation requires both bicarbonate-dependent PKA activation and down-regulation of Ser/Thr phosphatases by Src family kinases. Mol Hum Reprod 2013; 19:570-80. [PMID: 23630234 DOI: 10.1093/molehr/gat033] [Citation(s) in RCA: 73] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
In all mammalian species studied so far, sperm capacitation correlates with an increase in protein tyrosine (Tyr) phosphorylation mediated by a bicarbonate-dependent cAMP/protein kinase A (PKA) pathway. Recent studies in mice revealed, however, that a Src family kinase (SFK)-induced inactivation of serine/threonine (Ser/Thr) phosphatases is also involved in the signaling pathways leading to Tyr phosphorylation. In view of these observations and with the aim of getting a better understanding of the signaling pathways involved in human sperm capacitation, in the present work we investigated the involvement of both the cAMP/PKA and SFK/phosphatase pathways in relation to the capacitation state of the cells. For this purpose, different signaling events and sperm functional parameters were analyzed as a function of capacitation time. Results revealed a very early bicarbonate-dependent activation of PKA indicated by the rapid (1 min) increase in both phospho-PKA substrates and cAMP levels (P < 0.05). However, a complete pattern of Tyr phosphorylation was detected only after 6-h incubation at which time sperm exhibited the ability to undergo the acrosome reaction (AR) and to penetrate zona-free hamster oocytes. Sperm capacitated in the presence of the SFK inhibitor SKI606 showed a decrease in both PKA substrate and Tyr phosphorylation levels, which was overcome by exposure of sperm to the Ser/Thr phosphatase inhibitor okadaic acid (OA). However, OA was unable to induce phosphorylation when sperm were incubated under PKA-inhibitory conditions (i.e. in the absence of bicarbonate or in the presence of PKA inhibitor). Moreover, the increase in PKA activity by exposure to a cAMP analog and a phosphodiesterase inhibitor did not overcome the inhibition produced by SKI606. Whereas the presence of SKI606 during capacitation produced a negative effect (P < 0.05) on sperm motility, progesterone-induced AR and fertilizing ability, none of these inhibitions were observed when sperm were exposed to SKI606 and OA. Interestingly, different concentrations of inhibitors were required to modulate human and mouse capacitation revealing the species specificity of the molecular mechanisms underlying this process. In conclusion, our results describe for the first time the involvement of both PKA activation and Ser/Thr phosphatase down-regulation in functional human sperm capacitation and provide convincing evidence that early PKA-dependent phosphorylation is the convergent regulatory point between these two signaling pathways.
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Affiliation(s)
- M A Battistone
- Instituto de Biología y Medicina Experimental, IByME-CONICET, Ciudad Autónoma de Buenos Aires, C1428ADN Buenos Aires, Argentina
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Dynamic alterations in the expression and localization of ACTL7a during capacitation in mouse spermatozoa. Fertil Steril 2012; 99:882-8. [PMID: 23211711 DOI: 10.1016/j.fertnstert.2012.11.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2012] [Revised: 10/15/2012] [Accepted: 11/02/2012] [Indexed: 01/26/2023]
Abstract
OBJECTIVE To demonstrate that capacitation in mouse spermatozoa involves alterations in the expression and localization of ACTL7a. DESIGN Determine the alteration in the expression level and localization of ACTL7a in the induction of capacitation in mouse spermatozoa. SETTING The Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, Peking Union Medical College, People's Republic of China. ANIMAL(S) ICR (Institute of Cancer Research) mice. INTERVENTION(S) None. MAIN OUTCOME MEASURE(S) Western blot, indirect immunostaining. RESULT(S) The expression of ACTL7a is upregulated via the PKA pathway and undergoes remodeling during the early period of capacitation in mouse spermatozoa. CONCLUSION(S) ACTL7a is an essential component of capacitation in mouse spermatozoa. The alteration in the expression and localization of ACTL7a may be the primary biochemical event in the induction of capacitation in mouse spermatozoa.
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Ickowicz D, Finkelstein M, Breitbart H. Mechanism of sperm capacitation and the acrosome reaction: role of protein kinases. Asian J Androl 2012; 14:816-21. [PMID: 23001443 PMCID: PMC3720105 DOI: 10.1038/aja.2012.81] [Citation(s) in RCA: 156] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2012] [Revised: 05/30/2012] [Accepted: 07/08/2012] [Indexed: 12/19/2022] Open
Abstract
Mammalian sperm must undergo a series of biochemical and physiological modifications, collectively called capacitation, in the female reproductive tract prior to the acrosome reaction (AR). The mechanisms of these modifications are not well characterized though protein kinases were shown to be involved in the regulation of intracellular Ca(2+) during both capacitation and the AR. In the present review, we summarize some of the signaling events that are involved in capacitation. During the capacitation process, phosphatidyl-inositol-3-kinase (PI3K) is phosphorylated/activated via a protein kinase A (PKA)-dependent cascade, and downregulated by protein kinase C α (PKCα). PKCα is active at the beginning of capacitation, resulting in PI3K inactivation. During capacitation, PKCα as well as PP1γ2 is degraded by a PKA-dependent mechanism, allowing the activation of PI3K. The activation of PKA during capacitation depends mainly on cyclic adenosine monophosphate (cAMP) produced by the bicarbonate-dependent soluble adenylyl cyclase. This activation of PKA leads to an increase in actin polymerization, an essential process for the development of hyperactivated motility, which is necessary for successful fertilization. Actin polymerization is mediated by PIP(2) in two ways: first, PIP(2) acts as a cofactor for phospholipase D (PLD) activation, and second, as a molecule that binds and inhibits actin-severing proteins such as gelsolin. Tyrosine phosphorylation of gelsolin during capacitation by Src family kinase (SFK) is also important for its inactivation. Prior to the AR, gelsolin is released from PIP(2) and undergoes dephosphorylation/activation, resulting in fast F-actin depolymerization, leading to the AR.
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Affiliation(s)
- Debby Ickowicz
- The Mina & Everard Faculty of Life Sciences, Bar-Ilan University, Ramat-Gan 52100, Israel
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