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Watabe M, Hiraiwa A, Sakai M, Ueno T, Ueno S, Nakajima K, Yaoita Y, Iwao Y. Sperm MMP-2 is indispensable for fast electrical block to polyspermy at fertilization in Xenopus tropicalis. Mol Reprod Dev 2021; 88:744-757. [PMID: 34618381 DOI: 10.1002/mrd.23540] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Accepted: 09/24/2021] [Indexed: 01/10/2023]
Abstract
Sperm matrix metalloproteinase-2 (MMP-2) is necessary for frog fertilization. Monospermy is ensured by a fast, electrical block to polyspermy mediated by a positive fertilization potential. To determine the role of the MMP-2 hemopexin domain (HPX) in a fast block to polyspermy during fertilization of the frog, Xenopus tropicalis, we prepared mutant frogs deficient in mmp2 gene using the transcription activator-like effector nuclease method. mmp2 ΔHPX (-/-) sperm without MMP-2 protein were able to fertilize wild-type (WT; +/+) eggs. However, polyspermy occurred in some eggs. The mutant sperm generated a normal fertilization potential amounting to 10 mV, and were able to fertilize eggs at 10 mV, at which WT sperm never fertilized. Sensitivity during voltage-dependent fertilization decreased in mutant sperm. This study demonstrates for the first time that the genetic alteration of the MMP-2 molecule in sperm causes polyspermy during fertilization of a monospermic species. Our findings provide reliable evidence that sperm MMP-2 is indispensable for the fast, electrical block to polyspermy during Xenopus fertilization.
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Affiliation(s)
- Mami Watabe
- Laboratory of Reproductive Developmental Biology and Developmental Cell Biology, Graduate School of Sciences and Technology for Innovation, Yamaguchi University, Yamaguchi, Japan
| | - Azusa Hiraiwa
- Laboratory of Reproductive Developmental Biology and Developmental Cell Biology, Graduate School of Sciences and Technology for Innovation, Yamaguchi University, Yamaguchi, Japan
| | - Mami Sakai
- Laboratory of Reproductive Developmental Biology and Developmental Cell Biology, Graduate School of Sciences and Technology for Innovation, Yamaguchi University, Yamaguchi, Japan
| | - Tomoyo Ueno
- Laboratory of Reproductive Developmental Biology and Developmental Cell Biology, Graduate School of Sciences and Technology for Innovation, Yamaguchi University, Yamaguchi, Japan
| | - Shuichi Ueno
- Laboratory of Reproductive Developmental Biology and Developmental Cell Biology, Graduate School of Sciences and Technology for Innovation, Yamaguchi University, Yamaguchi, Japan
| | - Keisuke Nakajima
- Division of Embryology, Amphibian Research Center, Hiroshima University, Higashihiroshima, Japan
| | - Yoshio Yaoita
- Division of Embryology, Amphibian Research Center, Hiroshima University, Higashihiroshima, Japan
| | - Yasuhiro Iwao
- Laboratory of Reproductive Developmental Biology and Developmental Cell Biology, Graduate School of Sciences and Technology for Innovation, Yamaguchi University, Yamaguchi, Japan
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2
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Proteomic landscape of seminal plasma associated with dairy bull fertility. Sci Rep 2018; 8:16323. [PMID: 30397208 PMCID: PMC6218504 DOI: 10.1038/s41598-018-34152-w] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2018] [Accepted: 09/18/2018] [Indexed: 12/19/2022] Open
Abstract
Male fertility is the ability of sperm to fertilize the egg and sustain embryo development. Several factors determine the fertilizing capacity of mammalian sperm, including those intrinsic to sperm and components of the seminal plasma. The present study analyzed the seminal fluid proteome of Bos taurus and potential associations between proteins and fertility scores. Mass spectrometry coupled with nano HPLC allowed the identification of 1,159 proteins in the dairy bull seminal plasma. There were 50 and 29 seminal proteins more abundant in high (HF) low fertility (LF) bulls, respectively. Based on multivariate analysis, C-type natriuretic peptide, TIMP-2, BSP5 and sulfhydryl oxidase indicated relationship with HF bulls. Clusterin, tissue factor pathway inhibitor 2, galectin-3-binding protein and 5′-nucleotidase were associated with LF bulls. Abundance of NAD(P)(+)-arginine ADP-ribosyltransferase, prosaposin and transmembrane protein 2 proteins had the highest positive correlations with fertility ranking. Quantities of vitamin D-binding protein, nucleotide exchange factor SIL1 and galectin-3-binding protein showed the highest negative correlations with fertility ranking. A fertility ranking score was calculated and the relationship with these proteins was significant (Spearman’s rho = 0.94). The present findings represent a major and novel contribution to the study of bovine seminal proteins. Indicators of fertility can be used to improve reproductive biotechnologies.
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3
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Murillo-de-Ozores AR, Rodríguez-Gama A, Bazúa-Valenti S, Leyva-Ríos K, Vázquez N, Pacheco-Álvarez D, De La Rosa-Velázquez IA, Wengi A, Stone KL, Zhang J, Loffing J, Lifton RP, Yang CL, Ellison DH, Gamba G, Castañeda-Bueno M. C-terminally truncated, kidney-specific variants of the WNK4 kinase lack several sites that regulate its activity. J Biol Chem 2018; 293:12209-12221. [PMID: 29921588 DOI: 10.1074/jbc.ra118.003037] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Revised: 06/14/2018] [Indexed: 12/13/2022] Open
Abstract
WNK lysine-deficient protein kinase 4 (WNK4) is an important regulator of renal salt handling. Mutations in its gene cause pseudohypoaldosteronism type II, mainly arising from overactivation of the renal Na+/Cl- cotransporter (NCC). In addition to full-length WNK4, we have observed faster migrating bands (between 95 and 130 kDa) in Western blots of kidney lysates. Therefore, we hypothesized that these could correspond to uncharacterized WNK4 variants. Here, using several WNK4 antibodies and WNK4-/- mice as controls, we showed that these bands indeed correspond to short WNK4 variants that are not observed in other tissue lysates. LC-MS/MS confirmed these bands as WNK4 variants that lack C-terminal segments. In HEK293 cells, truncation of WNK4's C terminus at several positions increased its kinase activity toward Ste20-related proline/alanine-rich kinase (SPAK), unless the truncated segment included the SPAK-binding site. Of note, this gain-of-function effect was due to the loss of a protein phosphatase 1 (PP1)-binding site in WNK4. Cotransfection with PP1 resulted in WNK4 dephosphorylation, an activity that was abrogated in the PP1-binding site WNK4 mutant. The electrophoretic mobility of the in vivo short variants of renal WNK4 suggested that they lack the SPAK-binding site and thus may not behave as constitutively active kinases toward SPAK. Finally, we show that at least one of the WNK4 short variants may be produced by proteolysis involving a Zn2+-dependent metalloprotease, as recombinant full-length WNK4 was cleaved when incubated with kidney lysate.
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Affiliation(s)
| | - Alejandro Rodríguez-Gama
- Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Mexico City 14080, Mexico
| | - Silvana Bazúa-Valenti
- Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Mexico City 14080, Mexico
| | - Karla Leyva-Ríos
- Escuela de Medicina, Universidad Panamericana, Mexico City 03920, Mexico
| | - Norma Vázquez
- Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Mexico City 14080, Mexico
| | | | - Inti A De La Rosa-Velázquez
- Genomics Laboratory, RAI, Universidad Nacional Autónoma de México-Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City 14080, Mexico
| | - Agnieszka Wengi
- Institute of Anatomy and Swiss National Centre of Competence in Research "Kidney Control of Homeostasis," University of Zurich, Zurich 8057, Switzerland
| | - Kathryn L Stone
- MS and Proteomics Resource, W. M. Keck Biotechnology Resource Laboratory, Yale University School of Medicine, New Haven 06510, Connecticut
| | - Junhui Zhang
- Department of Genetics, Yale University School of Medicine, New Haven 06510, Connecticut
| | - Johannes Loffing
- Institute of Anatomy and Swiss National Centre of Competence in Research "Kidney Control of Homeostasis," University of Zurich, Zurich 8057, Switzerland
| | - Richard P Lifton
- Department of Genetics, Yale University School of Medicine, New Haven 06510, Connecticut; Laboratory of Human Genetics and Genomics, Rockefeller University, New York, New York 10065
| | - Chao-Ling Yang
- Division of Nephrology and Hypertension, Department of Medicine, Oregon Health and Science University, Portland, Oregon 97239; Veterans Affairs Portland Health Care System, Portland, Oregon 97239
| | - David H Ellison
- Division of Nephrology and Hypertension, Department of Medicine, Oregon Health and Science University, Portland, Oregon 97239; Veterans Affairs Portland Health Care System, Portland, Oregon 97239
| | - Gerardo Gamba
- Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Mexico City 14080, Mexico; Department of Nephrology and Mineral Metabolism, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City 14080, Mexico; Tecnológico de Monterrey, Escuela de Medicina y Ciencias de la Salud, Monterrey 64710, Nuevo León, Mexico
| | - Maria Castañeda-Bueno
- Department of Nephrology and Mineral Metabolism, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City 14080, Mexico.
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Label-free based quantitative proteomic analysis identifies proteins involved in the testis maturation of Bactrocera dorsalis (Hendel). COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY D-GENOMICS & PROTEOMICS 2018; 25:9-18. [DOI: 10.1016/j.cbd.2017.10.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2017] [Revised: 10/16/2017] [Accepted: 10/17/2017] [Indexed: 11/23/2022]
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5
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Universality and Diversity of a Fast, Electrical Block to Polyspermy During Fertilization in Animals. DIVERSITY AND COMMONALITY IN ANIMALS 2018. [DOI: 10.1007/978-4-431-56609-0_24] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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6
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Abstract
Male infertility has become a very serious problem in the human reproduction system, but the molecular mechanism of infertility remains largely unknown.
Fertilization is the phenomenon in which a sperm and oocyte find each other, interact, and fuse. Sperm-oocyte fusion-related factors on the sperm side play
crucial roles in male infertility. For example, IZUMO1 is well-known as a sperm protein essential for fusion of a sperm and oocyte, but its dysfunction or
mutation can result in male infertility. Recent studies showed a novel sperm protein named Bactericidal/permeability-increasing protein (BPI), which takes part
in the sperm-oocyte fusion process. The complexity and expected redundancy of the factors involved makes the process intricate, with a still poorly understood
mechanism, which is difficult to comprehend in full detail. This review summarizes the known molecules involved in the process of sperm-oocyte fusion, mainly
focusing on the relevant factors on the sperm side, whose dysregulation may potentially be associated with male infertility. New insights may come from these
molecules in this review, can facilitate the development of new treatments of male infertility, and may have a diagnostic value in infertility.
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Affiliation(s)
- Lisha Mou
- Shenzhen Xenotransplantation Medical Engineering Research and Development Center, Institute of Translational Medicine, Shenzhen Second People's Hospital, First Affiliated Hospital of Shenzhen University, Shenzhen, China
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7
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Nonaka S, Katsuyama T, Kondo T, Sasaki Y, Asami T, Yajima S, Ito S. 1,10-Phenanthroline and its derivatives are novel hatching stimulants for soybean cyst nematodes. Bioorg Med Chem Lett 2016; 26:5240-5243. [PMID: 27692853 DOI: 10.1016/j.bmcl.2016.09.052] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2016] [Revised: 09/15/2016] [Accepted: 09/21/2016] [Indexed: 10/21/2022]
Abstract
Soybean cyst nematode (SCN), Heterodera glycines Ichinohe, is a plant-parasitic nematode and one of the most serious soybean pests. Herein, we present the heterocyclic compound 1,10-phenanthroline (Phen) and its derivatives as novel hatching stimulants for SCN. Phen treatment promoted hatching of second-stage juveniles of SCNs in a concentration-dependent manner. In addition, the hatching of SCNs following treatment with Phen occurred more rapidly than that following treatment with the known hatching stimulant, glycinoeclepin A (GEA). Furthermore, the co-application of Phen and GEA enhanced SCN hatching rate compared with that of Phen or GEA alone. A structure-activity relationship study for Phen derivatives suggested that 2,2'-bipyridine is the essential structure of the SCN-hatching stimulants. These results suggest that Phen and its derivatives activate different hatching pathways of SCNs from GEA.
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Affiliation(s)
- Shiori Nonaka
- Department of Bioscience, Faculty of Applied Bioscience, Tokyo University of Agriculture, 1-1-1 Sakuragaoka, Setagaya, Tokyo 156-8502, Japan
| | - Tsutomu Katsuyama
- Department of Bioscience, Faculty of Applied Bioscience, Tokyo University of Agriculture, 1-1-1 Sakuragaoka, Setagaya, Tokyo 156-8502, Japan
| | - Tatsuhiko Kondo
- Graduate School of Bioagricultural Sciences, Nagoya University, Chikusa, Nagoya 464-8601, Japan
| | - Yasuyuki Sasaki
- Department of Bioscience, Faculty of Applied Bioscience, Tokyo University of Agriculture, 1-1-1 Sakuragaoka, Setagaya, Tokyo 156-8502, Japan
| | - Tadao Asami
- Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo, Tokyo 113-8657, Japan; Department of Biochemistry, King Abdulaziz University, Jeddah, Saudi Arabia; JST, CREST, Japan
| | - Shunsuke Yajima
- Department of Bioscience, Faculty of Applied Bioscience, Tokyo University of Agriculture, 1-1-1 Sakuragaoka, Setagaya, Tokyo 156-8502, Japan
| | - Shinsaku Ito
- Department of Bioscience, Faculty of Applied Bioscience, Tokyo University of Agriculture, 1-1-1 Sakuragaoka, Setagaya, Tokyo 156-8502, Japan.
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8
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Iwao Y, Shiga K, Shiroshita A, Yoshikawa T, Sakiie M, Ueno T, Ueno S, Ijiri TW, Sato KI. The need of MMP-2 on the sperm surface for Xenopus fertilization: Its role in a fast electrical block to polyspermy. Mech Dev 2014; 134:80-95. [DOI: 10.1016/j.mod.2014.09.005] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2014] [Revised: 09/22/2014] [Accepted: 09/24/2014] [Indexed: 01/31/2023]
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9
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Quan JH, Kang BH, Cha GH, Zhou W, Koh YB, Yang JB, Yoo HJ, Lee MA, Ryu JS, Noh HT, Kwon J, Lee YH. Trichonomas vaginalis metalloproteinase induces apoptosis of SiHa cells through disrupting the Mcl-1/Bim and Bcl-xL/Bim complexes. PLoS One 2014; 9:e110659. [PMID: 25343522 PMCID: PMC4208800 DOI: 10.1371/journal.pone.0110659] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2014] [Accepted: 09/22/2014] [Indexed: 01/05/2023] Open
Abstract
To elucidate the roles of metalloproteinases and the Bcl-2 family of proteins in Trichovaginalis. vaginalis-induced apoptosis in human cervical cancer cells (SiHa cells) and vaginal epithelial cells (MS74 cells), SiHa cells and MS74 cells were incubated with live T. vaginalis, T. vaginalis excretory and secretory products (ESP), and T. vaginalis lysates, either with or without the specific metalloproteinase inhibitor 1,10-phenanthroline (1,10-PT), and examined apoptotic events and Bcl-2 signaling. The live T. vaginalis and the T. vaginalis ESP induced the release of cytochrome c into the cytosol, the activation of caspase-3 and caspase-9, and the cleavage of PARP. Additionally, the live T. vaginalis, but not the T. vaginalis lysate, induced the cleavage of the proapoptotic Bim protein. The live T. vaginalis and the T. vaginalis ESP, but not the T. vaginalis lysate, induced the dose-dependent cleavage of the antiapoptotic Bcl-xL and Mcl-1 proteins and decreased the association levels of Bcl-xL/Bim and Mcl-1/Bim complexes. We performed gelatin zymography and casein-hydrolysis assays on the live T. vaginalis and the T. vaginalis ESP to identify the apoptosis-inducing factor. Both the live T. vaginalis and the ESP contained high levels of metalloproteinases, of which activities were significantly inhibited by 1,10-PT treatment. Furthermore, the 1,10-PT blocked the cleavage of Bcl-xL, Mcl-1, PARP, caspase-3, and caspase-9, as well as the release of cytochrome c into the cytosol, and it significantly increased the association levels of the Bcl-xL/Bim and Mcl-1/Bim protein complexes, returning them to normal levels. Our results demonstrate that T. vaginalis induces mitochondria-dependent apoptosis in SiHa cells through the dissociation of Bcl-xL/Bim and Mcl-1/Bim complexes and that the apoptosis is blocked by the metalloproteinase inhibitor 1,10-PT. These results expand our understanding of the role of metalloproteinases in T. vaginalis-induced apoptosis and the signaling pathway in trichomoniasis of the cervicovaginal epithelial cells.
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Affiliation(s)
- Juan-Hua Quan
- Department of Gastroenterology, The Affiliated Hospital of Guangdong Medical College, Zhanjiang, Guangdong, China
| | - Byung-Hun Kang
- Department of Obstetrics and Gynecology, Chungnam National University Hospital, Daejeon, Korea
| | - Guang-Ho Cha
- Department of Infection Biology, Chungnam National University School of Medicine, Daejeon, Korea
| | - Wei Zhou
- Department of Infection Biology, Chungnam National University School of Medicine, Daejeon, Korea
| | - Young-Bok Koh
- Department of Obstetrics and Gynecology, Chungnam National University Hospital, Daejeon, Korea
| | - Jung-Bo Yang
- Department of Obstetrics and Gynecology, Chungnam National University Hospital, Daejeon, Korea
| | - Heon-Jong Yoo
- Department of Obstetrics and Gynecology, Chungnam National University Hospital, Daejeon, Korea
| | - Min-A Lee
- Department of Obstetrics and Gynecology, Chungnam National University Hospital, Daejeon, Korea
| | - Jae-Sook Ryu
- Department of Environmental Biology and Medical Parasitology, Hanyang University College of Medicine, Seoul, Korea
| | - Heung-Tae Noh
- Department of Obstetrics and Gynecology, Chungnam National University Hospital, Daejeon, Korea
| | - Jaeyul Kwon
- Department of Medical Education, Chungnam National University School of Medicine, Daejeon, Korea
| | - Young-Ha Lee
- Department of Infection Biology, Chungnam National University School of Medicine, Daejeon, Korea
- * E-mail:
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10
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Markadieu N, Rios K, Spiller BW, McDonald WH, Welling PA, Delpire E. Short forms of Ste20-related proline/alanine-rich kinase (SPAK) in the kidney are created by aspartyl aminopeptidase (Dnpep)-mediated proteolytic cleavage. J Biol Chem 2014; 289:29273-84. [PMID: 25164821 DOI: 10.1074/jbc.m114.604009] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
The Ste20-related kinase SPAK regulates sodium, potassium, and chloride transport in a variety of tissues. Recently, SPAK fragments, which lack the catalytic domain and are inhibitory to Na(+) transporters, have been detected in kidney. It has been hypothesized that the fragments originate from alternative translation start sites, but their precise origin is unknown. Here, we demonstrate that kidney lysate possesses proteolytic cleavage activity toward SPAK. Ion exchange and size exclusion chromatography combined with mass spectrometry identified the protease as aspartyl aminopeptidase. The presence of the protease was verified in the active fractions, and recombinant aspartyl aminopeptidase recapitulated the cleavage pattern observed with kidney lysate. Identification of the sites of cleavage by mass spectrometry allowed us to test the function of the smaller fragments and demonstrate their inhibitory action toward the Na(+)-K(+)-2Cl(-) cotransporter, NKCC2.
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Affiliation(s)
| | | | | | - W Hayes McDonald
- Biochemistry and the Mass Spectrometry Research Center, Vanderbilt University School of Medicine, Nashville, Tennessee 37232 and
| | - Paul A Welling
- the Department of Physiology, University of Maryland School of Medicine, Baltimore, Maryland 21201
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11
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Rego J, Crisp J, Moura A, Nouwens A, Li Y, Venus B, Corbet N, Corbet D, Burns B, Boe-Hansen G, McGowan M. Seminal plasma proteome of electroejaculated Bos indicus bulls. Anim Reprod Sci 2014; 148:1-17. [DOI: 10.1016/j.anireprosci.2014.04.016] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2013] [Revised: 04/16/2014] [Accepted: 04/30/2014] [Indexed: 12/30/2022]
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12
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Beek J, Nauwynck H, Maes D, Van Soom A. Inhibitors of zinc-dependent metalloproteases hinder sperm passage through the cumulus oophorus during porcine fertilization in vitro. Reproduction 2012; 144:687-97. [PMID: 23081896 DOI: 10.1530/rep-12-0311] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
In this study, we report for the first time on a possible contribution of metalloproteases in sperm passage through the cumulus matrix in pigs. The presence of 20 μM 1,10-phenanthroline (1,10-PHEN), inhibitor of zinc-dependent metalloproteases, strongly inhibited the degree of sperm penetration in cumulus-intact (CI), but not in cumulus-free (CF), porcine oocytes during IVF. The inhibitory effect of 1,10-PHEN was due to the chelation of metal ions as a non-chelating analog (1,7-PHEN) did not affect IVF rates. Furthermore, incubation with 1,10-PHEN did not affect sperm binding to the zona pellucida nor sperm motility, membrane integrity, or acrosomal status. These findings led to the assumption that 1,10-PHEN interacts with a sperm- or cumulus-derived metalloprotease. Metalloproteases are key players in physiological processes involving degradation or remodeling of extracellular matrix. In vivo, their proteolytic activity is regulated by tissue inhibitors of metalloproteases (TIMP1-TIMP4). We tested the effect of TIMP3 on fertilization parameters after porcine IVF. Similar to 1,10-PHEN, TIMP3 inhibited total fertilization rate of CI but not CF oocytes and did not influence sperm quality parameters. Although the inhibitory effect was stronger in CI oocytes, TIMP3 also reduced the degree of sperm penetration in CF oocytes, suggesting the involvement of a metalloprotease in a subsequent step during fertilization. In conclusion, our results indicate the involvement of TIMP3-sensitive, zinc-dependent metalloprotease activity in sperm passage through the cumulus oophorus in pigs. The results should provide the basis for further biochemical research toward the localization and identification of the metalloprotease involved.
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Affiliation(s)
- J Beek
- Department Reproduction, Obstetrics, and Herd Health, Faculty of Veterinary Medicine, Ghent University, B-9820 Merelbeke, Belgium.
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13
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Dun MD, Anderson AL, Bromfield EG, Asquith KL, Emmett B, McLaughlin EA, Aitken RJ, Nixon B. Investigation of the expression and functional significance of the novel mouse sperm protein, a disintegrin and metalloprotease with thrombospondin type 1 motifs number 10 (ADAMTS10). ACTA ACUST UNITED AC 2012; 35:572-89. [DOI: 10.1111/j.1365-2605.2011.01235.x] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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14
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Sachdev M, Mandal A, Mulders S, Digilio LC, Panneerdoss S, Suryavathi V, Pires E, Klotz KL, Hermens L, Herrero MB, Flickinger CJ, van Duin M, Herr JC. Oocyte specific oolemmal SAS1B involved in sperm binding through intra-acrosomal SLLP1 during fertilization. Dev Biol 2011; 363:40-51. [PMID: 22206759 DOI: 10.1016/j.ydbio.2011.12.021] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2011] [Revised: 12/08/2011] [Accepted: 12/12/2011] [Indexed: 10/14/2022]
Abstract
Molecular mechanisms by which fertilization competent acrosome-reacted sperm bind to the oolemma remain uncharacterized. To identify oolemmal binding partner(s) for sperm acrosomal ligands, affinity panning was performed with mouse oocyte lysates using sperm acrosomal protein, SLLP1 as a target. An oocyte specific membrane metalloproteinase, SAS1B (Sperm Acrosomal SLLP1 Binding), was identified as a SLLP1 binding partner. cDNA cloning revealed six SAS1B splice variants, each containing a zinc binding active site and a putative transmembrane domain, with signal peptides in three variants. SAS1B transcripts were ovary specific. SAS1B protein was first detected in early secondary follicles in day 3 ovaries. Immunofluorescence localized SAS1B to the microvillar oolemma of M2 oocytes. After fertilization, SAS1B decreased on the oolemma and became virtually undetectable in blastocysts. In transfected CHO-K1 cells SAS1B localized to the surface of unpermeabilized cells. Recombinant and native SLLP1 co-localized with SAS1B to the microvillar domain of ovulated M2 oocytes. Molecular interactions between mouse SLLP1 and SAS1B were demonstrated by surface plasmon resonance, far-western, yeast two-hybrid, recombinant- and native-co-IP analyses. SAS1B bound to SLLP1 with high affinity. SAS1B had protease activity, and SAS1B protein or antibody significantly inhibited fertilization. SAS1B knockout female mice showed a 34% reduction in fertility. The study identified SAS1B-SLLP1 as a pair of novel sperm-egg binding partners involving the oolemma and intra-acrosomal compartment during fertilization.
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Affiliation(s)
- Monika Sachdev
- Department of Cell Biology, Center for Research in Contraceptive and Reproductive Health, University of Virginia, Charlottesville, VA 22908, USA
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15
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Abstract
A crucial step of fertilization is the sperm-egg interaction that allows the two gametes to fuse and create the zygote. In the mouse, CD9 on the egg and IZUMO1 on the sperm stand out as critical players, as Cd9(-/-) and Izumo1(-/-) mice are healthy but infertile or severely subfertile due to defective sperm-egg interaction. Moreover, work on several nonmammalian organisms has identified some of the most intriguing candidates implicated in sperm-egg interaction. Understanding of gamete membrane interactions is advancing through characterization of in vivo and in vitro fertilization phenotypes, including insights from less robust phenotypes that highlight potential supporting (albeit not absolutely essential) players. An emerging theme is that there are varied roles for gamete molecules that participate in sperm-egg interactions. Such roles include not only functioning as fusogens, or as adhesion molecules for the opposite gamete, but also functioning through interactions in cis with other proteins to regulate membrane order and functionality.
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Affiliation(s)
- Janice P Evans
- Department of Biochemistry and Molecular Biology, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland 21205, USA.
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16
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Gadella BM, Evans JP. Membrane Fusions During Mammalian Fertilization. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2011; 713:65-80. [DOI: 10.1007/978-94-007-0763-4_5] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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17
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Zhu GZ, Gupta S, Myles DG, Primakoff P. Testase 1 (ADAM 24) a sperm surface metalloprotease is required for normal fertility in mice. Mol Reprod Dev 2009; 76:1106-14. [PMID: 19670298 DOI: 10.1002/mrd.21076] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
ADAM family members play important roles in various physiological and pathological processes, for example, fertilization, embryogenesis, neurogenesis, and development of asthma and arthritis (Primakoff and Myles, 2000. Trends Genet 16: 83-87; Edwards et al., 2008. Mol Aspects Med 29: 258-289). We previously reported that testase 1 (ADAM 24) is the first identified metalloprotease present on the surface of mature sperm. To investigate a potential role of testase 1 in fertilization, we generated testase 1 deficient mice. Testase 1 null male mice showed reduced fertility, producing only half the number of offspring when compared to wild-type littermates. In a standard in vitro fertilization assay, we found that sperm lacking testase 1 gave rise to polyspermic fertilization, a phenotypic feature that might contribute to failure of normal embryo development due to polyaneuploidy. Furthermore, in vivo, we found that testase 1 null males produced a higher number of polyspermic embryos at the pronuclear stage. These findings suggest that testase 1 is a sperm plasma membrane component which contributes to the prevention of polyspermy at the level of the oocyte plasma membrane.
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Affiliation(s)
- Guo-Zhang Zhu
- Department of Molecular & Cellular Biology, College of Biological Sciences, University of California Davis, Davis, California 95616, USA
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Deppe M, Morales P, Sánchez R. Effect of Protease Inhibitors on the Acrosome Reaction and Sperm-Zona Pellucida Binding in Bovine Sperm. Reprod Domest Anim 2008; 43:713-9. [DOI: 10.1111/j.1439-0531.2007.00977.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Moura AA, Chapman DA, Koc H, Killian GJ. A comprehensive proteomic analysis of the accessory sex gland fluid from mature Holstein bulls. Anim Reprod Sci 2007; 98:169-88. [PMID: 16713141 DOI: 10.1016/j.anireprosci.2006.03.012] [Citation(s) in RCA: 95] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2005] [Accepted: 03/10/2006] [Indexed: 11/21/2022]
Abstract
The expression of proteins in accessory sex gland fluid (AGF) of proven, high use mature Holstein bulls was evaluated. Thirty-seven bulls with documented fertility based on their non-return rates were studied. AGF was obtained by artificial vagina after bulls were surgically equipped with cannulae in the vasa deferentia. Samples of AGF were evaluated by two-dimensional SDS-PAGE, gels stained with Coomassie blue and polypeptide maps analyzed by PDQuest software. A master gel generated by the software representing the best pattern of spots in the AGF polypeptide maps was used as a reference for protein identification. Proteins were identified by Western blots and capillary liquid chromatography-nanoelectrospray ionization tandem-mass spectrometry (CapLC-MS/MS). The product ion spectra were processed using Protein Lynx Global Server 2.1 prior to database search with both PLGS and MASCOT (Matrix Science) software. The entire NCBI database was considered for mass fingerprint matching. An average of 52+/-5 spots was detected in the AGF 2D gels, which corresponded to proteins potentially involved in capacitation (bovine seminal plasma protein-BSP-A1/A2 and A3, BSP 30 kDa, albumin); sperm membrane protection, prevention of oxidative stress, complement-mediated sperm destruction and anti-microbial activity (albumin, clusterin, acidic seminal fluid protein--aSFP, 5'-nucleotidase--5'-NT, phospholipase A2--PLA2); acrosome reaction and sperm-oocyte interaction (PLA2, osteopontin); interaction with the extracellular matrix (tissue inhibitor of metalloproteinase 2, clusterin) and sperm motility (aSFP, spermadhesin Z13, 5'-NT). The 20 spots distinguished in all gels were matched to proteins associated with these functions. Proteins identified by tandem mass spectrometry as ecto-ADP-ribosyltransferase 5 and nucleobindin, never described before in the accessory sex gland secretions, were also detected. In summary, we identified a diverse range of components in the accessory sex gland fluid of a select group of Holstein bulls with documented fertility. Known characteristics of these proteins suggest that they play important roles in sperm physiology after ejaculation.
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Affiliation(s)
- Arlindo A Moura
- J.O. Almquist Research Center, Department of Dairy and Animal Science, The Pennsylvania State University, University Park, PA 16802, USA.
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Carpentier M, Guillemette C, Bailey JL, Boileau G, Jeannotte L, DesGroseillers L, Charron J. Reduced fertility in male mice deficient in the zinc metallopeptidase NL1. Mol Cell Biol 2004; 24:4428-37. [PMID: 15121861 PMCID: PMC400486 DOI: 10.1128/mcb.24.10.4428-4437.2004] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2003] [Accepted: 02/15/2004] [Indexed: 11/20/2022] Open
Abstract
Members of the M13 family of zinc metalloendopeptidases have been shown to play critical roles in the metabolism of various neuropeptides and peptide hormones, and they have been identified as important therapeutic targets. Recently, a mouse NL1 protein, a novel member of the family, was identified and shown to be expressed mainly in the testis as a secreted protein. To define its physiological role(s), we used a gene targeting strategy to disrupt the endogenous murine Nl1 gene by homologous recombination and generate Nl1 mutant mice. The Nl1(-/-) mice were viable and developed normally, suggesting that zygotic expression of Nl1 is not required for development. However, Nl1(-/-) males produced smaller litters than their wild-type siblings, indicating specific male fertility problems. Reduced fertility may be explained by two impaired processes, decreased egg fertilization and perturbed early development of fertilized eggs. These two phenotypes did not result from gross anatomical modifications of the testis or from impaired spermatogenesis. Basic sperm parameters were also normal. Thus, our findings suggest that one of the roles of NL1 in mice is related to sperm function and that NL1 modulates the processes of fertilization and early embryonic development in vivo.
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Affiliation(s)
- Mélanie Carpentier
- Département de Biochimie, Université de Montréal, Montréal H3C 3J7, Canada
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Morales P, Pizarro E, Kong M, Jara M. Extracellular localization of proteasomes in human sperm. Mol Reprod Dev 2004; 68:115-24. [PMID: 15039955 DOI: 10.1002/mrd.20052] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The proteasome, a multienzymatic protease complex is present in human sperm. Here we present evidence indicating that the proteasome has an extracellular localization, on the plasma membrane of the sperm head. Motile sperm (>90%) in PBS were incubated with the proteasome inhibitors clasto-lactacystin beta-lactone or epoxomicin. Then, the substrate Suc-Leu-Leu-Val-Tyr-AMC (SLLVY-AMC) was added and the enzyme activity evaluated in a spectrofluorometer. Other aliquots were resuspended in Tyrode's medium and incubated at different concentrations for various times with or without inhibitors in the presence of 0.4% azocasein. Hydrolysis of azocasein was evaluated at 440 nm. In addition, sperm membrane proteins were obtained incubating the sperm with Triton X-114 or with 0.5 M KCl plus Triton X-100 and removing insoluble material by centrifugation at 5,000g for 40 min. Proteasomal activity was evaluated with SLLVY-AMC and its presence corroborated by Western blotting. Formaldehyde fixed, unpermeabilized sperm were incubated with anti-proteasome monoclonal antibodies and evaluated using indirect immunofluorescence. The effect of proteasome inhibitors upon the progesterone-induced acrosome reaction was also evaluated. Results indicated that (a) whole, intact sperm were able to hydrolyze the proteasome substrates SLLVY-AMC and azocasein; this activity was inhibited by proteasome inhibitors; (b) proteasomal activity was detected in soluble sperm membrane protein preparations and Western blotting revealed the presence of the proteasome in these fractions; (c) indirect immunofluorescence revealed staining of the head region, particularly of the post acrosomal region; and (d) the proteasome plays an important role during the acrosome reaction.
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Affiliation(s)
- Patricio Morales
- Department of Biomedicine, Faculty of Health Sciences, University of Antofagasta, Antofagasta, Chile.
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Talbot P, Shur BD, Myles DG. Cell adhesion and fertilization: steps in oocyte transport, sperm-zona pellucida interactions, and sperm-egg fusion. Biol Reprod 2003; 68:1-9. [PMID: 12493688 DOI: 10.1095/biolreprod.102.007856] [Citation(s) in RCA: 149] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
Abstract
Fertilization in mammals requires the successful completion of many steps, starting with the transport of gametes in the reproductive tract and ending with sperm-egg membrane fusion. In this minireview, we focus on three adhesion steps in this multistep process. The first is oocyte "pick-up," in which the degree of adhesion between the extracellular matrix of the cumulus cells and oviductal epithelial cells controls the successful pick-up of the oocyte-cumulus complex and its subsequent transfer into the oviduct. The second part of this review is concerned with the interaction between the sperm and the zona pellucida of the egg. Evidence is discussed that a plasma membrane form of galactosyltransferase on the surface of mouse sperm binds to ZP3 in the zona pellucida and initiates an acrosome reaction. Additional evidence raises the possibility that initial sperm binding to the zona pellucida is independent of ZP3. Last, we address the relationship between sperm adhesion to the egg plasma membrane and membrane fusion, especially the role of ADAM family proteins on the sperm surface and egg integrins.
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Affiliation(s)
- Prudence Talbot
- Department of Neuroscience, University of California-Riverside, Riverside, California 92521, USA
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Shomron N, Malca H, Vig I, Ast G. Reversible inhibition of the second step of splicing suggests a possible role of zinc in the second step of splicing. Nucleic Acids Res 2002; 30:4127-37. [PMID: 12364591 PMCID: PMC140552 DOI: 10.1093/nar/gkf553] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
A multicomponent complex of proteins and RNA is assembled on the newly synthesized pre-mRNA to form the spliceosome. This complex catalyzes a two-step transesterification reaction required to remove the introns and ligate the exons. To date, only six proteins have been found necessary for the second step of splicing in yeast, and their human homologs have been identified. We demonstrate that the addition of the selective chelator of zinc, 1,10-phenanthroline, to an in vitro mRNA splicing reaction causes a dose-dependent inhibition of the second step of splicing. This inhibition is accompanied by the accumulation of spliceosomes paused before completion of step two of the splicing reaction. The inhibition effect on the second step is due neither to snRNA degradation nor to direct binding to the mRNA, and is reversible by dialysis or add-back of zinc, but not of other divalent metals, at the beginning of the reaction. These findings suggest that the activity of a putative zinc-dependent metalloprotein(s) involved in the second step of splicing is affected. This study outlines a new method for specific reversible inhibition of the second step of splicing using external reagents, and suggests a possible role of divalent cations in the second step of mRNA splicing, most likely zinc.
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Affiliation(s)
- Noam Shomron
- Department of Human Genetics and Molecular Medicine, Sackler School of Medicine, Tel Aviv University, Ramat Aviv 69978, Tel Aviv, Israel
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Wassler M, Syntin P, Sutton-Walsh HG, Hsia N, Hardy DM, Cornwall GA. Identification and characterization of cystatin-related epididymal spermatogenic protein in human spermatozoa: localization in the equatorial segment. Biol Reprod 2002; 67:795-803. [PMID: 12193387 DOI: 10.1095/biolreprod.102.003970] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
Abstract
Our earlier studies in mouse have shown that the cystatin-related epididymal spermatogenic (CRES) protein is highly expressed in elongating spermatids in the testis and is present in mouse sperm acrosomes, suggesting specific roles in sperm function, fertilization, or both. However, whether the human CRES gene is similar to that of the mouse and is expressed in germ cells has not yet been determined. Therefore, the present study was undertaken to characterize the human ortholog of mouse CRES: Northern blot and in situ hybridization experiments showed that CRES is highly expressed in the human testis, specifically within clusters of round spermatids. Furthermore, reverse transcription-polymerase chain reaction detected CRES mRNA in the epididymis. Western blot analysis of protein lysates prepared from human testis and ejaculated spermatozoa showed a predominant 19-kDa protein and a minor 14-kDa protein. However, in contrast to the acrosomal localization of CRES protein in mouse spermatozoa, indirect immunofluorescence of human spermatozoa treated with methanol/acetic acid using anti-human CRES antibodies revealed that CRES was strictly localized to the equatorial segment. Furthermore, the same staining was observed in both capacitated and acrosome-reacted spermatozoa. To determine whether CRES was associated with the plasma membrane, live spermatozoa were incubated with CRES antibody after capacitation and acrosome reaction. Only acrosome-reacted spermatozoa showed a weak but specific equatorial staining. Taken together, these studies show that CRES protein is present in the sperm equatorial segment and becomes accessible to the extracellular environment during fertilization.
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Affiliation(s)
- Michael Wassler
- Department of Cell Biology and Biochemistry, Texas Tech University Health Sciences Center, Lubbock, Texas 79430, USA
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Zhu GZ, Myles DG, Primakoff P. Testase 1 (ADAM 24) a plasma membrane-anchored sperm protease implicated in sperm function during epididymal maturation or fertilization. J Cell Sci 2001; 114:1787-94. [PMID: 11309208 DOI: 10.1242/jcs.114.9.1787] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Plasma membrane-anchored proteases have key roles in cell signaling, migration and refashioning the cell surface and its surroundings. We report the first example of a plasma membrane-anchored protease on mature sperm, testase 1 (ADAM 24). Unlike other studied sperm ADAMs (fertilin (α) and (β), cyritestin) whose metalloprotease domains are removed during sperm development, we found testase 1 retains an active metalloprotease domain, suggesting it acts as a protease on mature sperm. Testase 1 is a glycoprotein (molecular mass 88 kDa), localized to the equatorial region of the plasma membrane of cauda epididymal sperm. Typically, proteolytic removal of the pro-domain is an initial activation step for ADAM proteases. The pro-domain of the testase 1 precursor (108 kDa) is proteolytically removed as sperm transit the caput epididymis to produce processed (mature) testase 1 (88 kDa). Testase 1 is unique among all studied ADAMs in that its proteolytic processing occurs on the sperm plasma membrane instead of at an intracellular site (the Golgi). Using GST-fusion proteins and a synthetic testase 1 C-terminal peptide, we found that the cytoplasmic tail of testase 1 could be phosphorylated in vitro by protein kinase C (PKC). Thus testase 1 apparently has a cytoplasmic PKC phosphorylation site(s). Protein kinase C is known to stimulate other ADAMs' protease activity. Because events of the acrosome reaction include PKC activation, we speculate that testase 1 protease function could be important in sperm penetration of the zona pellucida after sperm PKC is activated during the acrosome reaction.
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Affiliation(s)
- G Z Zhu
- Dept of Cell Biology and Human Anatomy, School of Medicine, University of California Davis, Davis, CA 95616, USA.
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