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Kodagoda YK, Liyanage DS, Omeka WKM, Kim G, Kim J, Lee J. Identification, expression profiling, and functional characterization of cystatin C from big-belly seahorse (Hippocampus abdominalis). FISH & SHELLFISH IMMUNOLOGY 2023; 138:108804. [PMID: 37207886 DOI: 10.1016/j.fsi.2023.108804] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Revised: 05/03/2023] [Accepted: 05/08/2023] [Indexed: 05/21/2023]
Abstract
Cystatins are natural inhibitors of lysosomal cysteine proteases, including cathepsins B, L, H, and S. Cystatin C (CSTC) is a member of the type 2 cystatin family and is an essential biomarker in the prognosis of several diseases. Emerging evidence suggests the immune regulatory roles of CSTC in antigen presentation, the release of different inflammatory mediators, and apoptosis in various pathophysiologies. In this study, the 390-bp cystatin C (HaCSTC) cDNA from big-belly seahorse (Hippocampus abdominalis) was cloned and characterized by screening the pre-established cDNA library. Based on similarities in sequence, HaCSTC is a homolog of the teleost type 2 cystatin family with putative catalytic cystatin domains, signal peptides, and disulfide bonds. HaCSTC transcripts were ubiquitously expressed in all tested big-belly seahorse tissues, with the highest expression in ovaries. Immune challenge with lipopolysaccharides, polyinosinic:polycytidylic acid, Edwardsiella tarda, and Streptococcus iniae caused significant upregulation in HaCSTC transcript levels. Using a pMAL-c5X expression vector, the 14.29-kDa protein of recombinant HaCSTC (rHaCSTC) was expressed in Escherichia coli BL21 (DE3), and its protease inhibitory activity against papain cysteine protease was determined with the aid of a protease substrate. Papain was competitively blocked by rHaCSTC in a dose-dependent manner. In response to viral hemorrhagic septicemia virus (VHSV) infection, HaCSTC overexpression strongly decreased the expression of VHSV transcripts, pro-inflammatory cytokines, and pro-apoptotic genes; while increasing the expression of anti-apoptotic genes in fathead minnow (FHM) cells. Furthermore, HaCSTC overexpression protected VHSV-infected FHM cells against VHSV-induced apoptosis and increased cell viability. Our findings imply the profound role of HaCSTC against pathogen infections by modulating fish immune responses.
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Affiliation(s)
- Yasara Kavindi Kodagoda
- Department of Marine Life Sciences & Fish Vaccine Research Center, Jeju National University, Jeju, 63243, Republic of Korea; Center for Genomic Selection in Korean Aquaculture, Jeju National University, Jeju Self-Governing Province, 63243, Republic of Korea
| | - D S Liyanage
- Department of Marine Life Sciences & Fish Vaccine Research Center, Jeju National University, Jeju, 63243, Republic of Korea
| | - W K M Omeka
- Department of Marine Life Sciences & Fish Vaccine Research Center, Jeju National University, Jeju, 63243, Republic of Korea; Center for Genomic Selection in Korean Aquaculture, Jeju National University, Jeju Self-Governing Province, 63243, Republic of Korea
| | - Gaeun Kim
- Department of Marine Life Sciences & Fish Vaccine Research Center, Jeju National University, Jeju, 63243, Republic of Korea; Center for Genomic Selection in Korean Aquaculture, Jeju National University, Jeju Self-Governing Province, 63243, Republic of Korea
| | - Jeongeun Kim
- Department of Marine Life Sciences & Fish Vaccine Research Center, Jeju National University, Jeju, 63243, Republic of Korea; Center for Genomic Selection in Korean Aquaculture, Jeju National University, Jeju Self-Governing Province, 63243, Republic of Korea
| | - Jehee Lee
- Department of Marine Life Sciences & Fish Vaccine Research Center, Jeju National University, Jeju, 63243, Republic of Korea; Marine Science Institute, Jeju National University, Jeju, 63333, Republic of Korea; Center for Genomic Selection in Korean Aquaculture, Jeju National University, Jeju Self-Governing Province, 63243, Republic of Korea.
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Luo X, Liang M, Huang S, Xue Q, Ren X, Li Y, Wang J, Shi D, Li X. iTRAQ-based comparative proteomics reveal an enhancing role of PRDX6 in the freezability of Mediterranean buffalo sperm. BMC Genomics 2023; 24:245. [PMID: 37147584 PMCID: PMC10163707 DOI: 10.1186/s12864-023-09329-x] [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: 12/20/2022] [Accepted: 04/22/2023] [Indexed: 05/07/2023] Open
Abstract
BACKGROUND Semen cryopreservation is a critical tool for breed improvement and preservation of biodiversity. However, instability of sperm freezability affects its application. The Mediterranean buffalo is one of the river-type buffaloes with the capacity for high milk production. Until now, there is no specific cryopreservation system for Mediterranean buffalo, which influences the promotion of excellent cultivars. To improve the semen freezing extender used in cryopreservation of Mediterranean buffalo, different protein datasets relating to freezability sperm were analyzed by iTRAQ-based proteomics. This study will be beneficial for further understanding the sperm freezability mechanism and developing new cryopreservation strategy for buffalo semen. RESULTS 2652 quantified proteins were identified, including 248 significantly differentially expressed proteins (DEP). Gene Ontology (GO) analysis indicated that many these were mitochondrial proteins, enriched in the molecular function of phospholipase A2 activity and enzyme binding, and biological processes of regulation of protein kinase A signaling and motile cilium assembly. Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analysis identified 17 significant pathways, including oxidative phosphorylation (OXPHOS). Furthermore, 7 DEPs were verified using parallel reaction monitoring or western blot, which confirmed the accuracy of the iTRAQ data. Peroxiredoxin 6 (PRDX6), which expressed 1.72-fold higher in good freezability ejaculate (GFE) compared to poor freezability ejaculate (PFE) sperms, was selected to explore the function in sperm freezability by adding recombinant PRDX6 protein into the semen freezing extender. The results showed that the motility, mitochondrial function and in vitro fertilization capacity of frozen-thawed sperm were significantly increased, while the oxidation level was significantly decreased when 0.1 mg/L PRDX6 was added compared with blank control. CONCLUSIONS Above results revealed the metabolic pattern of freezability of Mediterranean buffalo sperms was negatively associated with OXPHOS, and PRDX6 had protective effect on cryo-damage of frozen-thawed sperms.
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Affiliation(s)
- Xi Luo
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi Key Laboratory of Animal Breeding and Disease Control, Guangxi University, Nanning, 530005, China
| | - Mingming Liang
- Liuzhou Maternity and Child Healthcare Hospital, Liuzhou, 545001, Guangxi, China
| | - Shihai Huang
- College of life science and technology, Guangxi University, Nanning, China
| | - Qingsong Xue
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi Key Laboratory of Animal Breeding and Disease Control, Guangxi University, Nanning, 530005, China
| | - Xuan Ren
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi Key Laboratory of Animal Breeding and Disease Control, Guangxi University, Nanning, 530005, China
| | - Yanfang Li
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi Key Laboratory of Animal Breeding and Disease Control, Guangxi University, Nanning, 530005, China
| | - Jinli Wang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi Key Laboratory of Animal Breeding and Disease Control, Guangxi University, Nanning, 530005, China
| | - Deshun Shi
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi Key Laboratory of Animal Breeding and Disease Control, Guangxi University, Nanning, 530005, China
| | - Xiangping Li
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi Key Laboratory of Animal Breeding and Disease Control, Guangxi University, Nanning, 530005, China.
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Fitzgerald HC, Kelleher AM, Ranjit C, Schust DJ, Spencer TE. Basolateral secretions of human endometrial epithelial organoids impact stromal cell decidualization. Mol Hum Reprod 2023; 29:gaad007. [PMID: 36821428 PMCID: PMC10321591 DOI: 10.1093/molehr/gaad007] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Revised: 01/19/2023] [Indexed: 02/24/2023] Open
Abstract
Uterine glands and, by inference, their secretions impact uterine receptivity, blastocyst implantation, stromal cell decidualization, and placental development. Changes in gland function across the menstrual cycle are primarily governed by the steroid hormones estrogen (E2) and progesterone (P4) but can also be influenced by extrinsic factors from the stroma. Using a human endometrial epithelial organoid system, transcriptome and proteome analyses identified distinct responses of the organoids to steroid hormones and prostaglandin E2 (PGE2). Notably, P4 and PGE2 modulated the basolateral secretion of organoid proteins, particularly cystatin C (CST3), serpin family A member 3 (SERPINA3), and stanniocalcin 1 (STC1). CST3, but not SERPINA3 or STC1, attenuated the in vitro stromal decidualization response to steroid hormones and PGE2. These findings provide evidence that uterine gland-derived factors impact stromal cell decidualization, which has implications for pregnancy establishment and fertility in women.
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Affiliation(s)
- Harriet C Fitzgerald
- Division of Animal Sciences, University of Missouri, Columbia, MO, USA
- Present address: The Ritchie Centre, Hudson Institute of Medical Research, Clayton, 3168 Victoria, Australia; Department of Obstetrics and Gynaecology, Monash University, Clayton, 3168 Victoria, Australia
| | - Andrew M Kelleher
- Division of Obstetrics, Gynecology and Women’s Health, University of Missouri, Columbia, MO, USA
| | - Chaman Ranjit
- Division of Animal Sciences, University of Missouri, Columbia, MO, USA
| | - Danny J Schust
- Division of Obstetrics, Gynecology and Women’s Health, University of Missouri, Columbia, MO, USA
- Present address: Department of Obstetrics and Gynecology, Duke University School of Medicine, Durham, NC, USA
| | - Thomas E Spencer
- Division of Animal Sciences, University of Missouri, Columbia, MO, USA
- Division of Obstetrics, Gynecology and Women’s Health, University of Missouri, Columbia, MO, USA
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Mahé C, Marcelo P, Tsikis G, Tomas D, Labas V, Saint-Dizier M. The bovine uterine fluid proteome is more impacted by the stage of the estrous cycle than the proximity of the ovulating ovary in the periconception period. Theriogenology 2023; 198:332-343. [PMID: 36640738 DOI: 10.1016/j.theriogenology.2023.01.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Revised: 01/04/2023] [Accepted: 01/05/2023] [Indexed: 01/09/2023]
Abstract
Uterine secretions provide a suitable environment for sperm selective migration during a couple of days preceding ovulation and for early embryo development before implantation. Our goal was to identify and quantify proteins in the bovine uterine fluid during the periovulatory period of the estrous cycle. Genital tracts with normal morphology were collected from adult cyclic Bos taurus females in a local slaughterhouse and classified into pre-ovulatory or post-ovulatory stages of cycle (around days 19-21 and 0-5 of cycle, respectively; n = 8 cows per stage) based on ovarian morphology. Proteins from uterine fluid collected from the utero-tubal junction to the base of each horn (four pools of two cows per condition) were analyzed by nanoLiquid Chromatography coupled with tandem Mass Spectrometry (nanoLC-MS/MS). A total of 1214 proteins were identified, of which 91% were shared between all conditions. Overall, 57% of proteins were predicted to be secreted and 17% were previously reported in uterine extracellular vesicles. Paired comparisons between uterine horns ipsilateral and contralateral to ovulation evidenced 12 differentially abundant proteins, including five at pre-ovulatory stage. Furthermore, 35 proteins differed in abundance between pre- and post-ovulatory stages, including 21 in the ipsilateral side of ovulation. Functional analysis of identified proteins demonstrated roles in binding, metabolism, cellular detoxification and the immune response. This study provides a valuable database of uterine proteins for functional studies on sperm physiology and early embryo development.
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Affiliation(s)
- Coline Mahé
- CNRS, IFCE, INRAE, Université de Tours, PRC, 37380, Nouzilly, France.
| | - Paulo Marcelo
- Plateforme d'Ingénierie Cellulaire & Analyses des Protéines ICAP, FR CNRS 3085 ICP, Université de Picardie Jules Verne, Amiens, France
| | - Guillaume Tsikis
- CNRS, IFCE, INRAE, Université de Tours, PRC, 37380, Nouzilly, France
| | - Daniel Tomas
- INRAE, Université de Tours, CHU de Tours, Plateforme de Phénotypage par Imagerie in/eX vivo de l'ANImal à la Molécule (PIXANIM), 37380, Nouzilly, France
| | - Valérie Labas
- INRAE, Université de Tours, CHU de Tours, Plateforme de Phénotypage par Imagerie in/eX vivo de l'ANImal à la Molécule (PIXANIM), 37380, Nouzilly, France
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5
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Johnson BD, Anderson AP, Small CM, Rose E, Flanagan SP, Hendrickson-Rose C, Jones AG. The evolution of the testis transcriptome in pregnant male pipefishes and seahorses. Evolution 2022; 76:2162-2180. [PMID: 35863060 DOI: 10.1111/evo.14579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Revised: 06/17/2022] [Accepted: 06/22/2022] [Indexed: 01/22/2023]
Abstract
In many animals, sperm competition and sexual conflict are thought to drive the rapid evolution of male-specific genes, especially those expressed in the testes. A potential exception occurs in the male pregnant pipefishes, where females transfer eggs to the males, eliminating testes from participating in these processes. Here, we show that testis-related genes differ dramatically in their rates of molecular evolution and expression patterns in pipefishes and seahorses (Syngnathidae) compared to other fish. Genes involved in testis or sperm function within syngnathids experience weaker selection in comparison to their orthologs in spawning and livebearing fishes. An assessment of gene turnover and expression in the testis transcriptome suggests that syngnathids have lost (or significantly reduced expression of) important classes of genes from their testis transcriptomes compared to other fish. Our results indicate that more than 50 million years of male pregnancy have removed syngnathid testes from the molecular arms race that drives the rapid evolution of male reproductive genes in other taxa.
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Affiliation(s)
| | | | - Clayton M Small
- Institute of Ecology and Evolution, University of Oregon, Eugene, Oregon, 97403
| | - Emily Rose
- Department of Biology, Valdosta State University, Valdosta, Georgia, 31698
| | - Sarah P Flanagan
- School of Biological Sciences, University of Canterbury, Christchurch, 8041, New Zealand
| | | | - Adam G Jones
- Department of Biological Sciences, University of Idaho, Moscow, Idaho, 83844
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Vickram AS, Anbarasu K, Jeyanthi P, Gulothungan G, Nanmaran R, Thanigaivel S, Sridharan TB, Rohini K. Identification and Structure Prediction of Human Septin-4 as a Biomarker for Diagnosis of Asthenozoospermic Infertile Patients-Critical Finding Toward Personalized Medicine. Front Med (Lausanne) 2021; 8:723019. [PMID: 34926486 PMCID: PMC8677696 DOI: 10.3389/fmed.2021.723019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Accepted: 10/25/2021] [Indexed: 11/22/2022] Open
Abstract
Semen parameters are been found as a key factor to evaluate the count and morphology in the given semen sample. The deep knowledge of male infertility will unravel with semen parameters correlated with molecular and biochemical parameters. The current research study is to identify the motility associated protein and its structure through the in-silico approach. Semen samples were collected and initial analysis including semen parameters was analyzed by using the World Health Organization protocol. Semen biochemical parameters, namely, seminal plasma protein concentration, fructose content, and glucosidase content were calculated and evaluated for correlation. Sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE) and matrix-assisted laser desorption/ionization-time of flight (MALDI-TOF) were carried out for identification of Septin-4 presence in the semen sample. Mascot search was done for protein conformation and in-silico characterization of Septin-4 by structural modeling in Iterative Threading Assembly Refinement (I-TASSER). Twenty-five nanoseconds molecular dynamics (MD) simulations results showed the stable nature of Septin-4 in the dynamic system. Overall, our results showed the presence of motility-associated protein in normospermia and control samples and not in the case of asthenospermia and oligoasthenospermia. Molecular techniques characterized the presence of Septin-4 and as a novel biomarker for infertility diagnosis.
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Affiliation(s)
- A S Vickram
- Department of Biotechnology, Saveetha School of Engineering (SSE), SIMATS, Chennai, India
| | - K Anbarasu
- Department of Bioinformatics, Saveetha School of Engineering (SSE), SIMATS, Chennai, India
| | - Palanivelu Jeyanthi
- Department of Biotechnology, Vel Tech Rangarajan Dr. Sagunthala R&D Institute of Science and Technology, Chennai, India
| | - G Gulothungan
- Department of Biomedical Engineering, Saveetha School of Engineering (SSE), SIMATS, Chennai, India
| | - R Nanmaran
- Department of Biomedical Engineering, Saveetha School of Engineering (SSE), SIMATS, Chennai, India
| | - S Thanigaivel
- Department of Biotechnology, Saveetha School of Engineering (SSE), SIMATS, Chennai, India
| | - T B Sridharan
- Department of Biotechnology, School of Bio Sciences and Technology, Vellore Institute of Technology (VIT), Vellore, India
| | - Karunakaran Rohini
- Unit of Biochemistry, Faculty of Medicine, AIMST University, Bedong, Malaysia
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7
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Mostafa T, El-Taweel AEAI, Rashed LA, Mohammed NAM, Akl EM. Assessment of seminal cystatin C levels in infertile men with varicocele: A preliminary study. Andrologia 2021; 54:e14278. [PMID: 34676572 DOI: 10.1111/and.14278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2021] [Revised: 10/05/2021] [Accepted: 10/08/2021] [Indexed: 02/05/2023] Open
Abstract
Varicocele has been raised as a contributor to male infertility supported by the improvement of sperm parameters after varicocelectomy. Cystatin C (Cys C) has been linked to several cellular changes that are common in male infertility cases associated with varicocele such as apoptosis and autophagy. This preliminary study aimed to assess the seminal levels of Cys C in infertile oligoasthenoteratozoospermic (OAT) men associated with varicocele that have been shown to have spermatic vein vasodilation and active death pathway. Overall, 60 men were investigated being divided into two equivalent groups-infertile OAT men with varicocele who underwent varicocelectomy and healthy fertile men as a control group. These men were subjected to history taking, clinical examination, semen analysis and assessment of seminal Cys C pre and 6 months post-varicocelectomy. The results showed a significant increase of seminal Cys C in infertile OAT men with varicocele than the fertile control (55.57 ± 25.6 ng/ml versus 10.78 ± 1.88 ng/ml, p = .001). Seminal Cys C was a significantly decreased post-operative than its pre-operative level (34.69 ± 14.02 versus 55.57 ± 25.6 ng/ml, p = .01). These results show a potential role of Cys C in varicocele-induced infertility.
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Affiliation(s)
- Taymour Mostafa
- Department of Andrology & Sexology, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Abd El-Aziz I El-Taweel
- Department of Dermatology & Andrology, Faculty of Medicine, Benha University, October 6 University, Benha, Egypt
| | - Laila Ahmed Rashed
- Department of Medical Biochemistry and Molecular Biology, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Nayera A M Mohammed
- Dermatology & Andrology specialist, Ministry of Health and Population, Cairo, Egypt
| | - Essam Mohamed Akl
- Department of Dermatology& Andrology, Faculty of Medicine, Benha University, Benha, Egypt
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8
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Baranizadeh K, Mahboobian MM, Amiri I, Tavilani H, Shafiee G. Effects of progesterone nanoparticles on the sperm capacitation and acrosome reaction in asthenozoospermia men. Andrologia 2021; 54:e14258. [PMID: 34609765 DOI: 10.1111/and.14258] [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: 07/10/2021] [Revised: 09/15/2021] [Accepted: 09/16/2021] [Indexed: 01/20/2023] Open
Abstract
Low motility is one of the causes of male infertility. In this study, the effects of progesterone solid lipid nanoparticles (SLNs) on sperm capacitation, acrosome reaction, oxidative stress and expression of SPACA1 and MAPK way genes were investigated. Progesterone SLNs were synthesized using the solvent emulsification evaporation method. Twenty asthenozoospermia samples were selected, and sperm and acrosome membrane integrity, acrosome reaction, sperm motility, viability, total antioxidant capacity (TAC), total oxidative status tests and PKA, PTK, P38MAPK and SPACA1 gene expressions were assessed. The synthesized nanoparticles were prepared with the size (187.6 nm), PDI (0.184), EE (85.82%), LP (3.43%) and ZP (-23.5mV). Progesterone SLNs increased sperm and acrosome membrane integrity and TAC (p < .05). Also, the expression of P38MAPK, PKA, PTK, and SPACA1 genes in this group showed a significant increase (p < .001). Progesterone SLNs increased acrosome reaction, sperm capacitation and TAC. Also, it increased the expression of PTK PKA, SPACA1 and P38MAPK genes.
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Affiliation(s)
- Khadijeh Baranizadeh
- Medicine school, Department of Clinical Biochemistry, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Mohammad Mehdi Mahboobian
- School of Pharmacy, Department of Pharmaceutics and Pharmaceutical Nanotechnology, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Iraj Amiri
- School of Medicine, Department of Anatomical Sciences, Endometrium and Endometriosis Research Center, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Heidar Tavilani
- Medicine school, Department of Clinical Biochemistry, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Gholamreza Shafiee
- Medicine school, Department of Clinical Biochemistry, Nutrition Health Research Center, Hamadan University of Medical Sciences, Hamadan, Iran
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Ou CM, Lee RKK, Lin MH, Lu CH, Yang TH, Yeh LY, Tsai PSJ, Li SH. A mouse seminal vesicle-secreted lysozyme c-like protein modulates sperm capacitation. J Cell Biochem 2021; 122:653-666. [PMID: 33469950 DOI: 10.1002/jcb.29894] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Revised: 12/30/2020] [Accepted: 01/04/2021] [Indexed: 01/19/2023]
Abstract
Lysozyme (LYZ) c-like proteins are primarily present in the testis and epididymis of male reproductive tissues. Here, we report a novel member of the c-type LYZ family, the seminal vesicle-secreted LYZ c-like protein (SVLLP). Three forms of SVLLP were purified from mouse seminal vesicle secretions and characterized as glycoproteins with the same protein core but different N-linked glycans. SVLLP is structurally similar to c-type LYZ proteins. Only one of the 20 invariant residues was altered in the consensus sequence of c-type LYZs; however, the changed residue (N53S) is one of two essential catalytic residues. LYZ activity assays demonstrated that the three glycoforms of SVLLP lacked enzyme activity. SVLLP is primarily expressed in seminal vesicles. Immunohistochemistry revealed that it occurs in the luminal fluid and mucosal epithelium of the seminal vesicles. Testosterone is not the primary regulator for its expression in the seminal vesicle. SVLLP binds to sperm and suppresses bovine serum albumin-induced sperm capacitation, inhibits the acrosome reaction, and blocks sperm-oocyte interactions in vitro, suggesting that SVLLP is a sperm capacitation inhibitor.
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Affiliation(s)
- Chung-Mao Ou
- Chemistry Division, Institute of Nuclear Energy Research, Taoyuan City, Taiwan
| | - Robert Kuo-Kuang Lee
- Department of Medical Research, MacKay Memorial Hospital, New Taipei City, Taiwan.,Department of Obstetrics and Gynecology, MacKay Memorial Hospital, Taipei, Taiwan
| | - Ming-Huei Lin
- Department of Obstetrics and Gynecology, MacKay Memorial Hospital, Taipei, Taiwan.,MacKay Junior College of Medicine, Nursing, and Management, Taipei, Taiwan
| | - Chung-Hao Lu
- Department of Obstetrics and Gynecology, MacKay Memorial Hospital, Taipei, Taiwan
| | - Tsung-Hsien Yang
- Department of Medical Research, MacKay Memorial Hospital, New Taipei City, Taiwan
| | - Ling-Yu Yeh
- Department of Medical Research, MacKay Memorial Hospital, New Taipei City, Taiwan
| | - Pei-Shiue Jason Tsai
- Department of Veterinary Medicine, National Taiwan University, Taipei, Taiwan.,Graduate Institute of Veterinary Medicine, National Taiwan University, Taipei, Taiwan
| | - Sheng-Hsiang Li
- Department of Medical Research, MacKay Memorial Hospital, New Taipei City, Taiwan.,MacKay Junior College of Medicine, Nursing, and Management, Taipei, Taiwan
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The effect of folate on ischemia/reperfusion injury in a rat adnexal torsion model. Arch Gynecol Obstet 2021; 303:1495-1500. [PMID: 33399929 DOI: 10.1007/s00404-020-05934-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2020] [Accepted: 12/01/2020] [Indexed: 10/22/2022]
Abstract
PURPOSE The ischemia/reperfusion (I/R) injury of ovaries in adnexal torsion may have inadvertent consequences. Many agents have been studied in terms of their ability to prevent reperfusion damage to ovaries in suspected cases. In this study, folic acid, known to have antioxidative properties, was investigated to determine whether it played a role in the prevention of I/R damage in a rat ovarian torsion model. METHODS In this experimental study, 40 female adult Wistar-Albino rats were randomly divided into five groups as control, ischemia, I/R, Fol2 (2 mg/kg folic acid), and Fol4 (4 mg/kg folic acid). In the Fol2 and Fol4 groups, folic acid was intraperitonelly administered 30 min before reperfusion. Blood samples were obtained from the tails of each rat at the second hour of reperfusion. RESULTS The total oxidant status (TOS), total antioxidant status, cystatin C and folic acid levels of the five groups were investigated. Folic acid in 2 mg/kg dose could moderately increase the serum folic acid concentration (15.75-19.95 ng/ml, p < 0.05), reduce the level of cystatin C (0.18-0.12 μg/L, p < 0.05), and had a tendency to improve the oxidative stress injury (OSI: 76.05-33.06, p > 0.05), although there was no statistical difference in TOS levels (p = 0.07). Folic acid in 4 mg/kg dose, could significantly increase the serum folic acid concentration (15.75-37.65 ng/ml). However, it did not significantly reduce the level of cystatin C (0.18-0.19 μg/L, p > 0.05), and did not improve oxidative stress injury (76.05-130.58, p > 0.05). CONCLUSION Folic acid in 2 mg/kg dose might improve the ovarian I/R injury though this was not statistically significant. Further studies are required to reach a definitive conclusion about the protective effect of folic acid in I/R injury.
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The Diagnostic Value of Cystatin C and Mild Hypothermia Therapy Based on Immunoturbidimetry Enhanced by Nanospheres in Asphyxia Neonate. J CHEM-NY 2020. [DOI: 10.1155/2020/1549795] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
In order to evaluate the early diagnosis value of CysC and the influence of mild hypothermia on the renal damage of asphyxia neonates, the serum cystatin C (CysC) levels of asphyxia neonates and normal neonates were measured by the nanomicrosphere-enhanced immunoturbidimetric method. The treatment was carried out, and the influence of mild hypothermia treatment on the renal damage of asphyxia neonates was analyzed. The results showed that the indicators of the asphyxia group were significantly higher than those of the control group, and the severe asphyxia group was significantly higher than that of the mild asphyxia group, which was statistically significant
; the heart rate of patients in the mild hypothermia treatment group decreased gradually with the decrease in body temperature. And compared with the control group, there was a significant difference (
); after symptomatic treatment, the two groups of ALT, AST, BUN, and SCR were improved to varying degrees, and the difference was statistically significant compared with before treatment (
). Studies have shown that serum CysC level can be used as an indicator to detect glomerular filtration function and early asphyxia newborns, and it is sensitive and specific for early diagnosis of kidney damage. At the same time, it can be used to monitor clinical renal function and determine the status of asphyxia newborns.
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Zhao W, Ahmed S, Ahmed S, Yangliu Y, Wang H, Cai X. Analysis of long non-coding RNAs in epididymis of cattleyak associated with male infertility. Theriogenology 2020; 160:61-71. [PMID: 33181482 DOI: 10.1016/j.theriogenology.2020.10.033] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Revised: 09/07/2020] [Accepted: 10/26/2020] [Indexed: 02/08/2023]
Abstract
Cattleyak (CY), is a cross breed between cattle and yak (YK), which display equal adaptability to the harsh environment as YK and much higher performances than YK. However, the CY is female fertile and male sterile. Previous studies were conducted on testes tissues to investigate the mechanism of male infertility in CY. There is no systematic research on genes, especially lncRNAs between CY and YK epididymis. In this study, Illumina Hiseq was performed to profile the epididymis transcriptome (lncRNA and mRNA) of CY and YK. In total 18859 lncRNAs were identified, from which lincRNAs 12458, antisense lncRNAs 2345, intronic lncRNAs 3101, and sense lncRNAs 955 respectively. We have identified 345 DE lncRNAs and 3008 DE mRNAs between YK and CY epididymis. Thirteen DEGs were validated by quantitative real-time PCR. Combing with DEG, 14 couples of lncRNAs and their target genes were both DE, and 6 of them including CCDC39, KCNJ16, NECTIN2, MRPL20, PSMC4, and DEFB112 show their potential infertility-related terms such as cellular motility, sperm maturation, sperm storage, cellular junction, folate metabolism, and capacitation. On the other hand, several down-regulated genes such as DEFB124, DEFB126, DEFB125, DEFB127, DEFB129, CES5A, TKDP1, CST3, RNASE9 and CD52 in CY compared to YK were involved in the immune response and sperm maturation. Therefore, comprehensive analysis for lncRNAs and their target genes may enhance our understanding of the molecular mechanisms underlying the process of sperm maturation in CY and may provide important resources for further research.
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Affiliation(s)
- Wangsheng Zhao
- School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang, 621010, Sichuan, China
| | - Saeed Ahmed
- School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang, 621010, Sichuan, China
| | - Siraj Ahmed
- School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang, 621010, Sichuan, China
| | - Yueling Yangliu
- School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang, 621010, Sichuan, China
| | - Hongmei Wang
- School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang, 621010, Sichuan, China
| | - Xin Cai
- Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization (Southwest Minzu University), Ministry of Education, Chengdu, Sichuan, 610041, China; Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization Key Laboratory of Sichuan Province, Chengdu, Sichuan, 610041, China.
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13
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Saint-Dizier M, Mahé C, Reynaud K, Tsikis G, Mermillod P, Druart X. Sperm interactions with the female reproductive tract: A key for successful fertilization in mammals. Mol Cell Endocrinol 2020; 516:110956. [PMID: 32712384 DOI: 10.1016/j.mce.2020.110956] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Revised: 06/22/2020] [Accepted: 07/20/2020] [Indexed: 12/15/2022]
Abstract
Sperm migration through the female genital tract is not a quiet journey. Uterine contractions quickly operate a drastic selection, leading to a very restrictive number of sperm reaching the top of uterine horns and finally, provided the presence of key molecules on sperm, the oviduct, where fertilization takes place. During hours and sometimes days before fertilization, subpopulations of spermatozoa interact with dynamic and region-specific maternal components, including soluble proteins, extracellular vesicles and epithelial cells lining the lumen of the female tract. Interactions with uterine and oviductal cells play important roles for sperm survival as they modulate the maternal immune response and allow a transient storage before ovulation. The body of work reported here highlights the importance of sperm interactions with proteins originated from both the uterine and oviductal fluids, as well as hormonal signals around the time of ovulation for sperm acquisition of fertilizing competence.
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Affiliation(s)
- Marie Saint-Dizier
- INRAE, UMR PRC, 37380, Nouzilly, France; University of Tours, Faculty of Sciences and Techniques, 37000, Tours, France.
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14
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He Y, Li D, Zhang W, Tian X, Pang W, Du R, Yang G, Yu T. Boar sperm quality and oxidative status as affected by rosmarinic acid at 17 °C. Trop Anim Health Prod 2020; 52:2169-2177. [PMID: 32124183 DOI: 10.1007/s11250-020-02246-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2019] [Accepted: 02/18/2020] [Indexed: 12/11/2022]
Abstract
Peroxidation damage induces sublethal injury to boar sperm during preservation. Rosmarinic acid (RA) has already been verified to efficiently protect cells from oxidant-induced injury and to produce significant effect on cryopreservation of semen. Through our experiments, we aim at investigating whether RA has a positive effect on the preservation of pig semen at room temperature. The semen collected from sexually mature Large White boars were preserved at 17 °C in Beltsville thawing solution (BTS) supplied. The boar sperm were exposed to 0, 25, 50, 75, 100, 125 and 150 μM RA in vitro and the sperm functions were examined. The sperm motility, the acrosome and plasma membrane integrity, the catalase activity (CAT), the total antioxidative capacity (T-AOC) activity and the malondialdehyde content (MDA) were examined at 0, 1, 3 and 5 days. The BTS diluent containing RA improved the sperm quality during the process of liquid preservation compared with the control treatment. After 5 days of liquid preservation, the addition of RA at 100 μM produced an optimal effect on the survival time as well as on the maintenance of motility, acrosome and plasma membrane integrity; T-AOC activity; CAT activity; and the MDA content. Besides, our results in the reproductive experiments showed that the addition of RA at 100 μM to the BTS diluent increased the pregnancy rate. These results suggest that the proper concentration of RA in boar semen extenders possibly improves the artificial insemination efficiency by reducing the sperm damage and the subsequent dysfunction during liquid preservation in swine production systems.
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Affiliation(s)
- Yulin He
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, Laboratory of Animal Fat Deposition & Muscle Development, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Dong Li
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, Laboratory of Animal Fat Deposition & Muscle Development, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Wenyu Zhang
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, Laboratory of Animal Fat Deposition & Muscle Development, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Xuekai Tian
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, Laboratory of Animal Fat Deposition & Muscle Development, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Weijun Pang
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, Laboratory of Animal Fat Deposition & Muscle Development, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Renrang Du
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, Laboratory of Animal Fat Deposition & Muscle Development, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Gongshe Yang
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, Laboratory of Animal Fat Deposition & Muscle Development, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Taiyong Yu
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, Laboratory of Animal Fat Deposition & Muscle Development, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, China.
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15
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Xue Q, Wu XQ. Characteristics and function of a novel cystatin gene in the pine wood nematode Bursaphelenchus xylophilus. Biol Open 2019; 8:bio.042655. [PMID: 31511247 PMCID: PMC6777362 DOI: 10.1242/bio.042655] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Bursaphelenchus xylophilus is the pathogen that causes pine wilt disease (PWD). The disease has caused significant economic losses and damage to forests. However, the pathogenic mechanism of B. xylophilus remains unclear. Cystatins are involved in various biological processes where they regulate normal proteolysis and also play a role in pathogenicity, but their functions in B. xylophilus are unknown. Therefore, we cloned the full-length cDNA of a cystatin gene of B. xylophilus (Bx-cpi-1) by rapid-amplification of cDNA ends and analyzed its characteristics with bioinformatic methods. In situ mRNA hybridization analyses showed that transcripts of Bx-cpi-1 were abundantly expressed in the reproductive organs of B. xylophilus. The expression of Bx-cpi-1 was investigated using qPCR. Bx-cpi-1 was expressed during each of the different developmental stages of B. xylophilus. The highest gene expression was at the egg stage. After infection of Pinus massoniana, the expression of Bx-cpi-1 increased. The functions of Bx-cpi-1 were verified by RNA interference. The feeding rate, reproduction and pathogenicity of B. xylophilus all decreased as a result of silencing of the Bx-cpi-1 gene. These results revealed that Bx-cpi-1 may be a variant of a type II cystatin gene which is involved in the development and pathogenic process of B. xylophilus. Summary:Bx-cpi-1, a variant of a type II cystatin gene, was abundantly expressed in the reproductive organs of Bursaphelenchusxylophilus, and involved in the development and pathogenicity of B. xylophilus.
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Affiliation(s)
- Qi Xue
- Co-Innovation Center for Sustainable Forestry in Southern China, College of Forestry, Nanjing Forestry University, Nanjing, Jiangsu 210037, China.,Jiangsu Key Laboratory for Prevention and Management of Invasive Species, College of Forestry, Nanjing Forestry University, Nanjing, Jiangsu 210037, China
| | - Xiao-Qin Wu
- Co-Innovation Center for Sustainable Forestry in Southern China, College of Forestry, Nanjing Forestry University, Nanjing, Jiangsu 210037, China .,Jiangsu Key Laboratory for Prevention and Management of Invasive Species, College of Forestry, Nanjing Forestry University, Nanjing, Jiangsu 210037, China
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Barrachina F, Jodar M, Delgado-Dueñas D, Soler-Ventura A, Estanyol JM, Mallofré C, Ballescà JL, Oliva R. Stable-protein Pair Analysis as A Novel Strategy to Identify Proteomic Signatures: Application To Seminal Plasma From Infertile Patients. Mol Cell Proteomics 2019; 18:S77-S90. [PMID: 30518674 PMCID: PMC6427235 DOI: 10.1074/mcp.ra118.001248] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2018] [Indexed: 12/12/2022] Open
Abstract
Our aim was to define seminal plasma proteome signatures of infertile patients categorized according to their seminal parameters using TMT-LC-MS/MS. To that extent, quantitative proteomic data was analyzed following two complementary strategies: (1) the conventional approach based on standard statistical analyses of relative protein quantification values; and (2) a novel strategy focused on establishing stable-protein pairs. By conventional analyses, the abundance of some seminal plasma proteins was found to be positively correlated with sperm concentration. However, this correlation was not found for all the peptides within a specific protein, bringing to light the high heterogeneity existing in the seminal plasma proteome because of both the proteolytic fragments and/or the post-translational modifications. This issue was overcome by conducting the novel stable-protein pairs analysis proposed herein. A total of 182 correlations comprising 24 different proteins were identified in the normozoospermic-control population, whereas this proportion was drastically reduced in infertile patients with altered seminal parameters (18 in patients with reduced sperm motility, 0 in patients with low sperm concentration and 3 in patients with no sperm in the ejaculate). These results suggest the existence of multiple etiologies causing the same alteration in seminal parameters. Additionally, the repetition of the stable-protein pair analysis in the control group by adding the data from a single patient at a time enabled to identify alterations in the stable-protein pairs profile of individual patients with altered seminal parameters. These results suggest potential underlying pathogenic mechanisms in individual infertile patients, and might open up a window to its application in the personalized diagnostic of male infertility.
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Affiliation(s)
- Ferran Barrachina
- From the ‡Molecular Biology of Reproduction and Development Research Group, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Fundació Clínic per a la Recerca Biomèdica, Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, University of Barcelona, Barcelona, Spain and Biochemistry and Molecular Genetics Service, Hospital Clínic, Barcelona, Spain
| | - Meritxell Jodar
- From the ‡Molecular Biology of Reproduction and Development Research Group, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Fundació Clínic per a la Recerca Biomèdica, Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, University of Barcelona, Barcelona, Spain and Biochemistry and Molecular Genetics Service, Hospital Clínic, Barcelona, Spain
| | - David Delgado-Dueñas
- From the ‡Molecular Biology of Reproduction and Development Research Group, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Fundació Clínic per a la Recerca Biomèdica, Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, University of Barcelona, Barcelona, Spain and Biochemistry and Molecular Genetics Service, Hospital Clínic, Barcelona, Spain
| | - Ada Soler-Ventura
- From the ‡Molecular Biology of Reproduction and Development Research Group, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Fundació Clínic per a la Recerca Biomèdica, Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, University of Barcelona, Barcelona, Spain and Biochemistry and Molecular Genetics Service, Hospital Clínic, Barcelona, Spain
| | - Josep Maria Estanyol
- Proteomics Unit, Scientific Technical Services, University of Barcelona, Barcelona, Spain
| | - Carme Mallofré
- Department of Pathology, University of Barcelona, Hospital Clínic, Barcelona, Spain
| | - Josep Lluís Ballescà
- Clinic Institute of Gynaecology, Obstetrics and Neonatology, Hospital Clínic, Barcelona, Spain
| | - Rafael Oliva
- From the ‡Molecular Biology of Reproduction and Development Research Group, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Fundació Clínic per a la Recerca Biomèdica, Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, University of Barcelona, Barcelona, Spain and Biochemistry and Molecular Genetics Service, Hospital Clínic, Barcelona, Spain;.
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Abstract
SummarySpermatogenesis is a dynamic process that culminates in the production of mature spermatozoa in the seminiferous tubules of sexually mature animals. Although sperm leaving the testis are fully differentiated, they must further undergo two additional maturation steps before acquiring the capability to fertilize the egg. Such processes take place during the epididymal residency and transport in the seminal fluid during ejaculation and, after delivery into the female reproductive tract, during the journey aiming the encountering the egg in the oviduct. Throughout this trip, spermatozoa are exposed to different reproductive fluids whose molecular compositions regulate the progress towards obtaining a fertilized competent cell. This review summarizes the evidence obtained so far supporting the participation of male and female reproductive tract-derived proteins in the modulation of sperm fertilizing ability and discusses the mechanisms by which such regulation may be accomplished.
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18
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Li SH, Hwu YM, Lu CH, Lin MH, Yeh LY, Lee RKK. Serine Protease Inhibitor SERPINE2 Reversibly Modulates Murine Sperm Capacitation. Int J Mol Sci 2018; 19:ijms19051520. [PMID: 29783741 PMCID: PMC5983788 DOI: 10.3390/ijms19051520] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Revised: 05/17/2018] [Accepted: 05/17/2018] [Indexed: 12/16/2022] Open
Abstract
SERPINE2 (serpin peptidase inhibitor, clade E, member 2), predominantly expressed in the seminal vesicle, can inhibit murine sperm capacitation, suggesting its role as a sperm decapacitation factor (DF). A characteristic of DF is its ability to reverse the capacitation process. Here, we investigated whether SERPINE2 can reversibly modulate sperm capacitation. Immunocytochemical staining revealed that SERPINE2 was bound onto both capacitated and uncapacitated sperm. It reversed the increase in BSA-induced sperm protein tyrosine phosphorylation levels. The effective dose and incubation time were found to be >0.1 mg/mL and >60 min, respectively. Calcium ion levels in the capacitated sperm were reduced to a level similar to that in uncapacitated sperm after 90 min of incubation with SERPINE2. In addition, the acrosome reaction of capacitated sperm was inhibited after 90 min of incubation with SERPINE2. Oviductal sperm was readily induced to undergo the acrosome reaction using the A23187 ionophore; however, the acrosome reaction was significantly reduced after incubation with SERPINE2 for 60 and 120 min. These findings suggested that SERPINE2 prevented as well as reversed sperm capacitation in vitro. It also prevented the acrosome reaction in in vivo-capacitated sperm isolated from the oviduct. Thus, SERPINE2 could reversibly modulate murine sperm capacitation.
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Affiliation(s)
- Sheng-Hsiang Li
- Department of Medical Research, Mackay Memorial Hospital, Tamsui District, New Taipei City 251, Taiwan.
- Mackay Junior College of Medicine, Nursing, and Management, Beitou District, Taipei City 112, Taiwan.
| | - Yuh-Ming Hwu
- Department of Medical Research, Mackay Memorial Hospital, Tamsui District, New Taipei City 251, Taiwan.
- Mackay Junior College of Medicine, Nursing, and Management, Beitou District, Taipei City 112, Taiwan.
- Department of Obstetrics and Gynecology, Mackay Memorial Hospital, Taipei City 104, Taiwan.
- Mackay Medical College, Sanzhi District, New Taipei City 252, Taiwan.
| | - Chung-Hao Lu
- Department of Obstetrics and Gynecology, Mackay Memorial Hospital, Taipei City 104, Taiwan.
| | - Ming-Huei Lin
- Mackay Junior College of Medicine, Nursing, and Management, Beitou District, Taipei City 112, Taiwan.
- Department of Obstetrics and Gynecology, Mackay Memorial Hospital, Taipei City 104, Taiwan.
| | - Ling-Yu Yeh
- Department of Medical Research, Mackay Memorial Hospital, Tamsui District, New Taipei City 251, Taiwan.
| | - Robert Kuo-Kuang Lee
- Department of Medical Research, Mackay Memorial Hospital, Tamsui District, New Taipei City 251, Taiwan.
- Department of Obstetrics and Gynecology, Mackay Memorial Hospital, Taipei City 104, Taiwan.
- Department of Obstetrics and Gynecology, Taipei Medical University, Taipei City 110, Taiwan.
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