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Tian Y, Wang H, Pan T, Hu X, Ding J, Chen Y, Li J, Chen H, Luo T. Global proteomic analyses of lysine acetylation, malonylation, succinylation, and crotonylation in human sperm reveal their involvement in male fertility. J Proteomics 2024; 303:105213. [PMID: 38797435 DOI: 10.1016/j.jprot.2024.105213] [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: 04/23/2024] [Revised: 05/17/2024] [Accepted: 05/23/2024] [Indexed: 05/29/2024]
Abstract
Protein lysine modifications (PLMs) are hotspots of post-translational modifications and are involved in many diseases; however, their role in human sperm remains obscure. This study examined the presence and functional roles of a classical PLM (lysine acetylation, Kac) and three novel PLMs (lysine malonylation, Kmal; lysine succinylation, Ksucc; lysine crotonylation, Kcr) in human sperm. Immunoblotting and immunofluorescence assays revealed modified proteins (15-150 kDa) in the tails of human sperm. An immunoaffinity approach coupled with liquid chromatography/tandem mass spectrometry revealed 1423 Kac sites in 680 proteins, 196 Kmal sites in 118 proteins, 788 Ksucc sites in 251 proteins, and 1836 Kcr sites in 645 proteins. These modified proteins participate in a variety of biological processes and metabolic pathways. Crosstalk analysis demonstrated that proteins involved in the sperm energy pathways of glycolysis, oxidative phosphorylation, the citrate cycle, fatty acid oxidation, and ketone body metabolism were modified by at least one of these modifications. In addition, these modifications were found in 62 male fertility-related proteins that weave a protein-protein interaction network associated with asthenoteratozoospermia, asthenozoospermia, globozoospermia, spermatogenic failure, hypogonadotropic hypogonadism, and polycystic kidney disease. Our findings shed light on the functional role of PLMs in male reproduction. SIGNIFICANCE: Protein lysine modifications (PLMs) are hotspots of posttranslational modifications and are involved in many diseases. This study revealed the presence of a classical PLM (lysine acetylation) and three novel PLMs (lysine malonylation, lysine succinylation, and lysine crotonylation) in human sperm tails. The modified proteins participate in a variety of biological processes and metabolic pathways. In addition, these modifications were found in 62 male infertility-associated proteins and could serve as potential diagnostic markers and therapeutic targets for male infertility.
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Affiliation(s)
- Yan Tian
- Institute of Biomedical Innovation and School of Basic Medical Sciences, Jiangxi Medical College, Nanchang University, Nanchang 330031, Jiangxi, China
| | - Hao Wang
- Department of Urology, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang 421001, Hunan, China
| | - Tingting Pan
- Institute of Biomedical Innovation and School of Basic Medical Sciences, Jiangxi Medical College, Nanchang University, Nanchang 330031, Jiangxi, China
| | - Xiaonian Hu
- Institute of Biomedical Innovation and School of Basic Medical Sciences, Jiangxi Medical College, Nanchang University, Nanchang 330031, Jiangxi, China
| | - Jing Ding
- Institute of Biomedical Innovation and School of Basic Medical Sciences, Jiangxi Medical College, Nanchang University, Nanchang 330031, Jiangxi, China
| | - Ying Chen
- Institute of Biomedical Innovation and School of Basic Medical Sciences, Jiangxi Medical College, Nanchang University, Nanchang 330031, Jiangxi, China
| | - Jia Li
- Institute of Biomedical Innovation and School of Basic Medical Sciences, Jiangxi Medical College, Nanchang University, Nanchang 330031, Jiangxi, China
| | - Houyang Chen
- Reproductive Medical Center, Jiangxi Maternal and Child Health Hospital, Nanchang 330006, Jiangxi, China; Jiangxi Key Laboratory of Reproductive Health, Nanchang 330006, Jiangxi, China.
| | - Tao Luo
- Institute of Biomedical Innovation and School of Basic Medical Sciences, Jiangxi Medical College, Nanchang University, Nanchang 330031, Jiangxi, China; Jiangxi Key Laboratory of Reproductive Health, Nanchang 330006, Jiangxi, China.
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Mostek-Majewska A, Majewska A, Janta A, Ciereszko A. New insights into posttranslational modifications of proteins during bull sperm capacitation. Cell Commun Signal 2023; 21:72. [PMID: 37046330 PMCID: PMC10091539 DOI: 10.1186/s12964-023-01080-w] [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: 11/22/2022] [Accepted: 02/13/2023] [Indexed: 04/14/2023] Open
Abstract
BACKGROUND Due to the unique nature of spermatozoa, which are transcriptionally and translationally silent, the regulation of capacitation is based on the formation of posttranslational modifications of proteins (PTMs). However, the interactions between different types of PTMs during the capacitation remain unclear. Therefore, we aimed to unravel the PTM-based regulation of sperm capacitation by considering the relationship between tyrosine phosphorylation and reversible oxidative PTMs (oxPTMs), i.e., S-nitrosylation and S-glutathionylation. Since reversible oxPTMs may be closely related to peroxyredoxin (PRDX) activity, the second aim was to verify the role of PRDXs in the PTM-based regulation of capacitation. METHODS Cryopreserved bull sperm were capacitated in vitro with or without PRDX inhibitor. Qualitative parameters of sperm and symptoms characteristic of capacitation were analyzed. Posttranslational protein modifications (S-nitrosylation, S-glutathionylation, tyrosine phosphorylation) were investigated at the cellular level (flow cytometry, fluorescence microscopy) and at the proteomic level (fluorescent gel-based proteomic approach). RESULTS Zona-pellucida binding proteins (ACRBP, SPAM1, ZAN, ZPBP1 and IZUMO4) were particularly rich in reversible oxPTMs. Moreover, numerous flagellar proteins were associated with all analyzed types of PTMs, which indicates that the direction of posttranslational modifications was integrated. Inhibition of PRDX activity during capacitation caused an increase in S-nitrosylation and S-glutathionylation and a decrease in tyrosine phosphorylation. Inhibition of PRDXs caused GAPDHS to undergo S-glutathionylation and the GSTO2 and SOD2 enzymes to undergo denitrosylation. Moreover, PRDX inhibition caused the AKAP proteins to be dephosphorylated. CONCLUSIONS Our research provides evidence that crosstalk occurs between tyrosine phosphorylation and reversible oxPTMs during bull sperm capacitation. This study demonstrates that capacitation triggers S-nitrosylation and S-glutathionylation (and reverse reactions) of zona-pellucida binding proteins, which may be a new important mechanism that determines the interaction between sperms and oocytes. Moreover, TCA-related and flagellar proteins, which are particularly rich in PTMs, may play a key role in sperm capacitation. We propose that the deglutathionylation of ODFs and IZUMO4 proteins is a new hallmark of bull sperm capacitation. The obtained results indicate a relationship between PRDX activity and protein phosphorylation, S-glutathionylation and S-nitrosylation. The activity of PRDXs may be crucial for maintaining redox balance and for providing proper PKA-mediated protein phosphorylation during capacitation. Video Abstract.
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Affiliation(s)
- Agnieszka Mostek-Majewska
- Department of Gamete and Embryo Biology, Institute of Animal Reproduction and Food Research of Polish Academy of Sciences, 10-748, Olsztyn, Poland.
| | - Anna Majewska
- Department of Gamete and Embryo Biology, Institute of Animal Reproduction and Food Research of Polish Academy of Sciences, 10-748, Olsztyn, Poland
| | - Anna Janta
- Department of Gamete and Embryo Biology, Institute of Animal Reproduction and Food Research of Polish Academy of Sciences, 10-748, Olsztyn, Poland
| | - Andrzej Ciereszko
- Department of Gamete and Embryo Biology, Institute of Animal Reproduction and Food Research of Polish Academy of Sciences, 10-748, Olsztyn, Poland
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Yang YT, Yan B, Li YH, Guo LN, Wang WW, Liu LJ, Yu HG, Diao H. Phosphodiesterase 10A inhibitor PF-2545920 as a prospective agent for the clinical promotion of sperm motility. Asian J Androl 2023; 25:373415. [PMID: 37026191 PMCID: PMC10521960 DOI: 10.4103/aja2022117] [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: 08/19/2022] [Accepted: 02/07/2023] [Indexed: 04/08/2023] Open
Abstract
Phosphodiesterase (PDE) inhibitors can improve sperm motility in patients with asthenozoospermia. However, the most commonly reported nonselective PDE inhibitor pentoxifylline and PDE5 inhibitor sildenafil have the disadvantages of requiring a high concentration and destroying sperm integrity. We examined the PDE10A inhibitor PF-2545920 to compare its ability to promote sperm motility with that of pentoxifylline and sildenafil. After seminal plasma was discarded, several semen samples were subjected to four treatments (control, PF-2545920, pentoxifylline, and sildenafil) to evaluate their ability to affect motility, viability, and spontaneous acrosome reactions. Intracellular calcium and adenosine triphosphate (ATP), mitochondrial membrane potential, and penetration through viscous medium were assessed by flow cytometry, luciferase, and hyaluronic acid after treatment with PF-2545920. Statistical analyses were performed using the analysis of variance statistical test. PF-2545920 elevated the percentage of motile spermatozoa compared to the control, pentoxifylline, and sildenafil groups at 10 µmol l -1 ( P < 0.01). It is less toxic to GC-2spd mouse spermatocytes cells and spermatozoa and causes fewer spontaneous acrosomal reactions ( P < 0.05). PF-2545920 also increased mitochondrial membrane potential ( P < 0.001) and altered intracellular calcium ( P < 0.05) in a dose-dependent manner, including increasing sperm hyaluronic acid penetrating ability ( P < 0.05). Therefore, PF-2545920 might be an excellent choice for stimulating the sperm motility.
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Affiliation(s)
- Yi-Ting Yang
- NHC Key Laboratory of Reproduction Regulation (Shanghai Institute for Biomedical and Pharmaceutical Technologies), School of Basic Medical Sciences, Fudan University, Shanghai 200032, China
| | - Bin Yan
- Reproductive Medicine Centre, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Yu-Hua Li
- NHC Key Laboratory of Reproduction Regulation (Shanghai Institute for Biomedical and Pharmaceutical Technologies), School of Basic Medical Sciences, Fudan University, Shanghai 200032, China
| | - Li-Na Guo
- NHC Key Laboratory of Reproduction Regulation (Shanghai Institute for Biomedical and Pharmaceutical Technologies), School of Basic Medical Sciences, Fudan University, Shanghai 200032, China
| | - Wei-Wei Wang
- School of Basic Medical Sciences, Fudan University, Shanghai 200032, China
| | - Li-Jie Liu
- Department of Urology, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - He-Guo Yu
- NHC Key Laboratory of Reproduction Regulation (Shanghai Institute for Biomedical and Pharmaceutical Technologies), School of Basic Medical Sciences, Fudan University, Shanghai 200032, China
| | - Hua Diao
- NHC Key Laboratory of Reproduction Regulation (Shanghai Institute for Biomedical and Pharmaceutical Technologies), School of Basic Medical Sciences, Fudan University, Shanghai 200032, China
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Maitan P, Bromfield EG, Stout TAE, Gadella BM, Leemans B. A stallion spermatozoon's journey through the mare's genital tract: In vivo and in vitro aspects of sperm capacitation. Anim Reprod Sci 2022; 246:106848. [PMID: 34556396 DOI: 10.1016/j.anireprosci.2021.106848] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 09/03/2021] [Accepted: 09/04/2021] [Indexed: 12/14/2022]
Abstract
Conventional in vitro fertilization is not efficacious when working with equine gametes. Although stallion spermatozoa bind to the zona pellucida in vitro, these gametes fail to initiate the acrosome reaction in the vicinity of the oocyte and cannot, therefore, penetrate into the perivitelline space. Failure of sperm penetration most likely relates to the absence of optimized in vitro fertilization media containing molecules essential to support stallion sperm capacitation. In vivo, the female reproductive tract, especially the oviductal lumen, provides an environmental milieu that appropriately regulates interactions between the gametes and promotes fertilization. Identifying these 'fertilization supporting factors' would be a great contribution for development of equine in vitro fertilization media. In this review, a description of the current understanding of the interactions stallion spermatozoa undergo during passage through the female genital tract, and related specific molecular changes that occur at the sperm plasma membrane is provided. Understanding these molecular changes may hold essential clues to achieving successful in vitro fertilization with equine gametes.
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Affiliation(s)
- Paula Maitan
- Departments of Clinical Sciences, Faculty of Veterinary Medicine, Utrecht University, Yalelaan 112, 3584 CM Utrecht, The Netherlands; Department of Veterinary Sciences, Universidade Federal de Viçosa, Viçosa, MG, Brazil
| | - Elizabeth G Bromfield
- Biomolecular Health Sciences, Faculty of Veterinary Medicine, Utrecht University, The Netherlands; Priority Research Centre for Reproductive Science, College of Engineering, Science and Environment, University of Newcastle, Australia
| | - Tom A E Stout
- Departments of Clinical Sciences, Faculty of Veterinary Medicine, Utrecht University, Yalelaan 112, 3584 CM Utrecht, The Netherlands
| | - Bart M Gadella
- Population Health Sciences, Faculty of Veterinary Medicine, Utrecht University, The Netherlands; Biomolecular Health Sciences, Faculty of Veterinary Medicine, Utrecht University, The Netherlands
| | - Bart Leemans
- Departments of Clinical Sciences, Faculty of Veterinary Medicine, Utrecht University, Yalelaan 112, 3584 CM Utrecht, The Netherlands.
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Gómez-Torres MJ, Sáez-Espinosa P, Manzano-Santiago P, Robles-Gómez L, Huerta-Retamal N, Aizpurua J. Sperm Adhesion Molecule 1 (SPAM1) Distribution in Selected Human Sperm by Hyaluronic Acid Test. Biomedicines 2022; 10:biomedicines10102553. [PMID: 36289815 PMCID: PMC9599839 DOI: 10.3390/biomedicines10102553] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Revised: 10/05/2022] [Accepted: 10/11/2022] [Indexed: 11/26/2022] Open
Abstract
The failures of binding to the oocyte zona pellucida are commonly attributed to defects in the sperm recognition, adhesion, and fusion molecules. SPAM1 (sperm adhesion molecule 1) is a hyaluronidase implicated in the dispersion of the cumulus-oocyte matrix. Therefore, the aim of this study was to characterize the SPAM1 distribution in the different physiological conditions of human sperm. Specifically, we evaluated the location of the SPAM1 protein in human sperm before capacitation, at one and four hours of capacitation and after hyaluronic acid (HA) selection test by fluorescence microscopy. Sperm bound to HA were considered mature and those that crossed it immature. Our results detected three SPAM1 fluorescent patterns: label throughout the head (P1), equatorial segment with acrosomal faith label (P2), and postacrosomal label (P3). The data obtained after recovering the mature sperm by the HA selection significantly (p < 0.05) highlighted the P1 in both capacitation times, being 79.74 and 81.48% after one hour and four hours, respectively. Thus, the HA test identified that human sperm require the presence of SPAM1 throughout the sperm head (P1) to properly contact the cumulus-oocyte matrix. Overall, our results provide novel insights into the physiological basis of sperm capacitation and could contribute to the improvement of selection techniques.
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Affiliation(s)
- María José Gómez-Torres
- Departamento de Biotecnología, Universidad de Alicante, 03690 Alicante, Spain
- Cátedra Human Fertility, Universidad de Alicante, 03690 Alicante, Spain
- Correspondence: ; Tel.: +34-965-903-878
| | - Paula Sáez-Espinosa
- Departamento de Biotecnología, Universidad de Alicante, 03690 Alicante, Spain
| | | | - Laura Robles-Gómez
- Departamento de Biotecnología, Universidad de Alicante, 03690 Alicante, Spain
| | | | - Jon Aizpurua
- IVF Spain, Reproductive Medicine, 03540 Alicante, Spain
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Panchal D, Bhagwat S, Parte P. N-Formyl-L-aspartate mediates chemotaxis in sperm via the beta-2-adrenergic receptor. Front Cell Dev Biol 2022; 10:959094. [PMID: 36211455 PMCID: PMC9538769 DOI: 10.3389/fcell.2022.959094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Accepted: 08/31/2022] [Indexed: 11/16/2022] Open
Abstract
Chemotaxis is a highly conserved physiological event required for directed sperm movement during fertilization. Recently, studies from our laboratory have identified N-formyl-L-aspartate (NFA) as a sperm chemoattractant. NFA is a known agonist for the beta-2-adrenergic receptor (β-2-AR) that regulates cAMP production and Ca2+ mobilization in somatic cells. As these downstream signaling molecules are also reported to be involved in sperm chemotaxis, in the present study we investigated the putative mechanism/s by which NFA may mediate chemotaxis. Toward this, the expression and localization of β-2-AR in sperm were studied by Western blot and indirect immunofluorescence, respectively. The responses of sperm to various concentration gradients of NFA and ICI-118,551, a β-2-AR specific antagonist, were evaluated using the microfluidics device-based chemotaxis assay. The intracellular concentration of Ca2+, on exposure to NFA, was analyzed using FURA-2 AM-based fluorimetric assay. Furthermore, the effect of NFA on sperm capacitation and acrosome reaction was evaluated using Western blot and immunofluorescence. NFA exhibited a bell-shaped dose-response curve typical of chemotaxis, with maximum response observed at 0.01M NFA, beyond which it was inhibitory; β-2-AR localization was seen on the sperm head and the mid-piece region of the flagella. Inhibition of sperm chemotaxis by ICI-118,551 confirms that sperm respond chemotactically to NFA via β-2-AR. Interestingly, at the concentration used for chemotaxis, NFA induced an increase in the intracellular Ca2+ but decreased cAMP in capacitating sperm. However, NFA per se did not induce capacitation as seen from the lack of effect on tyrosine phosphorylation and membrane potential of uncapacitated sperm. Acrosome evaluation of NFA-treated sperm using PSA-FITC staining showed no effect on the acrosome structure. Our data thus provide evidence indicating that NFA induces sperm chemotaxis and the chemotactic response of sperm to NFA from the ovulatory phase of oviductal fluid is mediated through the β-2-AR on sperm possibly via non-canonical signaling.
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Affiliation(s)
- Durva Panchal
- Department of Gamete Immunobiology, ICMR-National Institute for Research in Reproductive and Child Health, Mumbai, Maharashtra, India
| | - Shweta Bhagwat
- Department of Gamete Immunobiology, ICMR-National Institute for Research in Reproductive and Child Health, Mumbai, Maharashtra, India
- Department of Obstetrics and Gynecology, Washington University School of Medicine, St. Louis, MO, United States
| | - Priyanka Parte
- Department of Gamete Immunobiology, ICMR-National Institute for Research in Reproductive and Child Health, Mumbai, Maharashtra, India
- *Correspondence: Priyanka Parte,
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Proteomic Analysis of the Role of the Adenylyl Cyclase-cAMP Pathway in Red Blood Cell Mechanical Responses. Cells 2022; 11:cells11071250. [PMID: 35406814 PMCID: PMC8997765 DOI: 10.3390/cells11071250] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 02/14/2022] [Accepted: 02/28/2022] [Indexed: 02/01/2023] Open
Abstract
Red blood cell (RBC) deformability is modulated by the phosphorylation status of the cytoskeletal proteins that regulate the interactions of integral transmembrane complexes. Proteomic studies have revealed that receptor-related signaling molecules and regulatory proteins involved in signaling cascades are present in RBCs. In this study, we investigated the roles of the cAMP signaling mechanism in modulating shear-induced RBC deformability and examined changes in the phosphorylation of the RBC proteome. We implemented the inhibitors of adenylyl cyclase (SQ22536), protein kinase A (H89), and phosphodiesterase (PDE) (pentoxifylline) to whole blood samples, applied 5 Pa shear stress (SS) for 300 s with a capillary tubing system, and evaluated RBC deformability using a LORRCA MaxSis. The inhibition of signaling molecules significantly deteriorated shear-induced RBC deformability (p < 0.05). Capillary SS slightly increased the phosphorylation of RBC cytoskeletal proteins. Tyrosine phosphorylation was significantly elevated by the modulation of the cAMP/PKA pathway (p < 0.05), while serine phosphorylation significantly decreased as a result of the inhibition of PDE (p < 0.05). AC is the core element of this signaling pathway, and PDE works as a negative feedback mechanism that could have potential roles in SS-induced RBC deformability. The cAMP/PKA pathway could regulate RBC deformability during capillary transit by triggering significant alterations in the phosphorylation state of RBCs.
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Zapata-Carmona H, Barón L, Kong M, Morales P. Protein Kinase A (PRKA) Activity Is Regulated by the Proteasome at the Onset of Human Sperm Capacitation. Cells 2021; 10:cells10123501. [PMID: 34944009 PMCID: PMC8700002 DOI: 10.3390/cells10123501] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Revised: 12/01/2021] [Accepted: 12/07/2021] [Indexed: 11/16/2022] Open
Abstract
The proteasome increases its activity at the onset of sperm capacitation due to the action of the SACY/PRKACA pathway; this increase is required for capacitation to progress. PRKA activity also increases and remains high during capacitation. However, intracellular levels of cAMP decrease in this process. Our goal was to evaluate the role of the proteasome in regulating PRKA activity once capacitation has started. Viable human sperm were incubated in the presence and absence of epoxomicin or with 0.1% DMSO. The activity of PRKA; the phosphorylation pattern of PRKA substrates (pPRKAs); and the expression of PRKAR1, PRKAR2, and AKAP3 were evaluated by Western blot. The localization of pPRKAs, PRKAR1, PRKAR2, and AKAP3 was evaluated by immunofluorescence. Treatment with epoxomicin changed the localization and phosphorylation pattern and decreased the percentage of pPRKAs-positive sperm. PRKA activity significantly increased at 1 min of capacitation and remained high throughout the incubation. However, epoxomicin treatment significantly decreased PRKA activity after 30 min. In addition, PRKAR1 and AKAP3 were degraded by the proteasome but with a different temporal kinetic. Our results suggest that PRKAR1 is the target of PRKA regulation by the proteasome.
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Affiliation(s)
- Héctor Zapata-Carmona
- Laboratorio de Biología de la Reproducción, Facultad de Ciencias de la Salud, Departamento Biomédico, Universidad de Antofagasta, Antofagasta 1240000, Chile; (H.Z.-C.); (L.B.); (M.K.)
| | - Lina Barón
- Laboratorio de Biología de la Reproducción, Facultad de Ciencias de la Salud, Departamento Biomédico, Universidad de Antofagasta, Antofagasta 1240000, Chile; (H.Z.-C.); (L.B.); (M.K.)
| | - Milene Kong
- Laboratorio de Biología de la Reproducción, Facultad de Ciencias de la Salud, Departamento Biomédico, Universidad de Antofagasta, Antofagasta 1240000, Chile; (H.Z.-C.); (L.B.); (M.K.)
| | - Patricio Morales
- Laboratorio de Biología de la Reproducción, Facultad de Ciencias de la Salud, Departamento Biomédico, Universidad de Antofagasta, Antofagasta 1240000, Chile; (H.Z.-C.); (L.B.); (M.K.)
- Instituto Antofagasta, Universidad de Antofagasta, Antofagasta 1240000, Chile
- Correspondence:
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Li N, Kang H, Peng Z, Wang HF, Weng SQ, Zeng XH. Physiologically detectable bisphenol A impairs human sperm functions by reducing protein-tyrosine phosphorylation. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 221:112418. [PMID: 34146982 DOI: 10.1016/j.ecoenv.2021.112418] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2021] [Revised: 06/06/2021] [Accepted: 06/08/2021] [Indexed: 06/12/2023]
Abstract
BACKGROUND Bisphenol A (BPA), a widely used plastic monomer and plasticizer, is detectable in blood, urine and semen of a healthy people, with concentrations ranging from 0.1 nM to 10 nM. It has been shown that in vitro exposure of BPA as low as 0.001 nM could significantly inhibited mouse sperm motility and acrosome reaction. However, it is still unclear whether BPA at those physiologically detectable concentration affects human sperm. METHODS The effects of different concentrations of BPA (0, 10-3, 10-2, 10-1, 10, 103 nM) on sperm functions were examined, including human sperm viability, kinematic parameters, hyperactivation and capacitation. RESULTS BPA caused a remarkable decline in human sperm viability, motility and progressive motility, hyperactivation, capacitation and progesterone-induced acrosome reaction. Mechanism studies showed that BPA could suppress the protein tyrosine phosphorylation level of human sperm, but had no effect on sperm calcium signaling. CONCLUSIONS Physiologically detectable concentrations of BPA may impair human sperm functions via suppressing protein tyrosine phosphorylation of human sperm, implying that environmental pollution of BPA might be a factor contributing to male infertility.
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Affiliation(s)
- Na Li
- Clinical Medical Research Center, Yichun People's Hospital, Yichun, Jiangxi 336000, PR China; Institute of Life Science, Nanchang University, Nanchang, Jiangxi 330031, PR China; Laboratory Department, Affiliated Reproductive Hospital of Jiangxi University of Traditional Chinese Medicine, Nanchang, Jiangxi 330031, PR China
| | - Hang Kang
- Institute of Life Science, Nanchang University, Nanchang, Jiangxi 330031, PR China
| | - Zhen Peng
- Clinical Medical Research Center, Yichun People's Hospital, Yichun, Jiangxi 336000, PR China; Institute of Life Science, Nanchang University, Nanchang, Jiangxi 330031, PR China
| | - Hua-Feng Wang
- Institute of Life Science, Nanchang University, Nanchang, Jiangxi 330031, PR China
| | - Shi-Qi Weng
- Institute of Life Science, Nanchang University, Nanchang, Jiangxi 330031, PR China
| | - Xu-Hui Zeng
- Institute of Reproductive Medicine, School of Medicine, Nantong University, Nantong, Jiangsu 226000, PR China; Institute of Life Science, Nanchang University, Nanchang, Jiangxi 330031, PR China.
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A cryoprotectant supplemented with pentoxifylline can improve the effect of freezing on the motility of human testicular sperm. ZYGOTE 2021; 30:92-97. [PMID: 34158133 DOI: 10.1017/s0967199421000368] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
This study examined the effect of a cryoprotectant with and without pentoxifylline supplementation on the motility and viability of human testicular sperm, both before and after freezing. Testicular samples were obtained from 68 patients with azoospermia who came to the Andrology Service of West China Second University Hospital, Sichuan University, for testicular biopsies from December 2019 to April 2020. All patients were assigned randomly to two groups: experimental, whose testicular sperm were added to the cryoprotectant with pentoxifylline, and the control, whose testicular sperm were added to the cryoprotectant without pentoxifylline. Both groups used the same freezing and thawing methods. Testicular sperm motility in the experimental group was significantly higher than that of the control group, both before and after cryopreservation. The recovery rate of sperm motility in the experimental group was significantly higher than that of the control group. The percentage of samples with motile testicular sperm in the experimental group was significantly higher than that of the control group after thawing. Sperm viability was unchanged between the experimental and control groups, both before and after freezing. Overall, a pentoxifylline-supplemented cryoprotectant can significantly improve the motility of testicular sperm before and after cryopreservation.
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Jia B, Memon S, Liang J, Lv C, Hong Q, Wu G, Quan G. Trehalose modifies the protein profile of ram spermatozoa during cryopreservation. Theriogenology 2021; 171:21-29. [PMID: 34000687 DOI: 10.1016/j.theriogenology.2021.05.004] [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: 11/12/2020] [Revised: 04/28/2021] [Accepted: 05/03/2021] [Indexed: 10/21/2022]
Abstract
As a magical oligosaccharide, trehalose has been revealed to enhance the post-thaw quality of stock semen. However, information regarding the cryoprotective mechanism of trehalose during cryopreservation has not yet been determined. This study was designed to observe the effects of trehalose on the proteome of ram frozen spermatozoa by applying the isobaric tag for relative and absolute quantification (iTRAQ) strategy combined with parallel reaction monitoring (PRM). A total of 1269 proteins were identified. Among them, there were 21 differentially expressed proteins (DEPs), with 9 up-regulated proteins and 11 down-regulated proteins in spermatozoa frozen with trehalose. These DEPs were primarily located in nucleus, cytoplasm, and extracellular region. The Gene Ontology (GO) enrichment analysis demonstrated the involvement of the DEPs in signal transduction, ion binding, oxidoreductase activity, response to stress, and catabolic processes. Based on the STRING analysis, tight functional correlations were observed between 6-phosphogluconate dehydrogenase, fructose-bisphosphate aldolase A isoform 1, 14-3-3 protein epsilon, tyrosine-protein kinase Fer, and beta-hexosaminidase subunit alpha precursor. Furthermore, 10 DEPs were verified using PRM, confirming the accuracy of the iTRAQ data acquired in this study. In conclusion, trehalose can modify the protein profile of ram spermatozoa during cryopreservation, which may be associated with its cryoprotective effects. Additionally, trehalose may function on frozen spermatozoa through antioxidation, involvement in glycolysis, and increment of spermatozoa tolerance to various stresses.
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Affiliation(s)
- Baoyu Jia
- College of Veterinary Medicine, Yunnan Agricultural University, Kunming City, Yunnan province, China
| | - Sameeullah Memon
- Yunnan Animal Science and Veterinary Institute, Jindian, Panlong County, Kunming City, Yunnan province, China
| | - Jiachong Liang
- Yunnan Animal Science and Veterinary Institute, Jindian, Panlong County, Kunming City, Yunnan province, China; Yunnan Provincial Engineering Laboratory of Animal Genetic Resource Conservation and Germplasm Enhancement, Jindian, Panlong County, Kunming City, Yunnan province, China
| | - Chunrong Lv
- Yunnan Animal Science and Veterinary Institute, Jindian, Panlong County, Kunming City, Yunnan province, China; Yunnan Provincial Engineering Laboratory of Animal Genetic Resource Conservation and Germplasm Enhancement, Jindian, Panlong County, Kunming City, Yunnan province, China
| | - Qionghua Hong
- Yunnan Animal Science and Veterinary Institute, Jindian, Panlong County, Kunming City, Yunnan province, China; Yunnan Provincial Engineering Laboratory of Animal Genetic Resource Conservation and Germplasm Enhancement, Jindian, Panlong County, Kunming City, Yunnan province, China
| | - Guoquan Wu
- Yunnan Animal Science and Veterinary Institute, Jindian, Panlong County, Kunming City, Yunnan province, China; Yunnan Provincial Engineering Laboratory of Animal Genetic Resource Conservation and Germplasm Enhancement, Jindian, Panlong County, Kunming City, Yunnan province, China.
| | - Guobo Quan
- Yunnan Animal Science and Veterinary Institute, Jindian, Panlong County, Kunming City, Yunnan province, China; Yunnan Provincial Engineering Laboratory of Animal Genetic Resource Conservation and Germplasm Enhancement, Jindian, Panlong County, Kunming City, Yunnan province, China.
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12
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Ibis E, Hayme S, Baysal E, Gul N, Ozkavukcu S. Efficacy and safety of papaverine as an in vitro motility enhancer on human spermatozoa. J Assist Reprod Genet 2021; 38:1523-1537. [PMID: 33772411 DOI: 10.1007/s10815-021-02160-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Accepted: 03/18/2021] [Indexed: 12/26/2022] Open
Abstract
PURPOSE The aim of this study was to examine the ability and safety of papaverine supplementation for in vitro sperm motility enhancement. In addition, sperm motility enhancement of papaverine was compared to pentoxifylline and theophylline. The post-thaw spermatozoa were used as an asthenozoospermia model. METHODS Post thaw sperm suspensions were divided into two groups: papaverine (100 μmol/L) and control, and each was investigated in two subgroups of 30- and 60-min exposure times. Detailed motility parameters were detected using a computerized sperm motility analyzer. Acrosomal status, viability, apoptosis, and DNA fragmentation were evaluated by flow cytometry. Furthermore, the motility-enhancing capacity of papaverine, pentoxifylline, and theophylline was compared. RESULTS Cryopreservation impaired sperm parameters dramatically but no significant changes occurred in acrosomal status and apoptosis. Supplementation of papaverine enhanced motility parameters consistently at all exposure intervals, significantly. However, viability was lower at the 60th minute compared to the 30th minute (p=0.019). Papaverine did not alter any acrosomal or apoptotic markers at any time points. All of the compounds compared in this study increased the motility parameters, where theophylline supplementation provided significantly better improvement in total motility compared to papaverine and pentoxifylline. CONCLUSION Our results suggest that in vitro papaverine treatment for 30 min adequately improves motility of post-thaw sperm, without leading to acrosome reaction, DNA damage, and viability loss. Theophylline's potency on increasing the ratio of total motile spermatozoa was found significantly superior than the two tested compounds. Prospective clinical studies with embryo production, pregnancy, and live birth data should be undertaken.
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Affiliation(s)
- Ebru Ibis
- Center for Assisted Reproduction, Department of Obstetrics and Gynecology, Ankara University Faculty of Medicine, Ankara, Turkey
| | - Serhat Hayme
- Department of Biostatistics, Ankara University Faculty of Medicine, Ankara, Turkey
| | - Ekin Baysal
- Department of Histology and Embryology, Ankara University Faculty of Medicine, Ankara, Turkey
| | - Nursel Gul
- Department of Biology, Ankara University Graduate School of Natural and Applied Sciences, Ankara, Turkey
| | - Sinan Ozkavukcu
- Center for Assisted Reproduction, Department of Obstetrics and Gynecology, Ankara University Faculty of Medicine, Ankara, Turkey. .,Department of Histology and Embryology, Ankara University Faculty of Medicine, Ankara, Turkey.
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13
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Gómez-Torres MJ, Huerta-Retamal N, Robles-Gómez L, Sáez-Espinosa P, Aizpurua J, Avilés M, Romero A. Arylsulfatase A Remodeling during Human Sperm In Vitro Capacitation Using Field Emission Scanning Electron Microscopy (FE-SEM). Cells 2021; 10:cells10020222. [PMID: 33498624 PMCID: PMC7912702 DOI: 10.3390/cells10020222] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2021] [Revised: 01/16/2021] [Accepted: 01/21/2021] [Indexed: 11/16/2022] Open
Abstract
Capacitation drives sperm biophysical and biochemical changes for sperm-oocyte interactions. It is a well-known fact that the molecular complex arylsulfatase A (ARSA), hyaluronidase sperm adhesion molecule 1 (SPAM1), and heat shock protein 2 (HSPA2) plays a significant role in sperm-zona pellucida (ZP) binding. However, the time-dependent capacitation effects on the sperm surface ARSA presence and specific topographic distributions remain to be elucidated. Here, we quantified the ARSA density and specific membrane domain locations before (US) and after in vitro capacitation (one and four hours; CS1-CS4) in human sperm using high-resolution field emission scanning electron microscopy (FE-SEM) and immunogold labeling. Our results showed a significant and progressive capacitation-mediated increase of labeled spermatozoa from the US (37%) to CS4 (100%) physiological conditions. In addition, surface mapping revealed a close relationship between the ARSA residues and their acrosomal repositioning. Compared with the ARSA surface heterogeneous distribution found in US, the CS1-4 conditions exhibited clustering on the peri-acrosomal region, showing that time-dependent capacitation also induced a ARSA residue dramatic translocation on sperm surfaces. Our findings provide novel insights into the molecular remodeling events preceding sperm-oocyte interactions.
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Affiliation(s)
- María José Gómez-Torres
- Departamento de Biotecnología, Universidad de Alicante, 03690 Alicante, Spain; (N.H.-R.); (L.R.-G.); (P.S.-E.); (A.R.)
- Cátedra Human Fertility, Universidad de Alicante, 03080 Alicante, Spain;
- Correspondence: ; Tel.: +34-965-90-38-78
| | - Natalia Huerta-Retamal
- Departamento de Biotecnología, Universidad de Alicante, 03690 Alicante, Spain; (N.H.-R.); (L.R.-G.); (P.S.-E.); (A.R.)
| | - Laura Robles-Gómez
- Departamento de Biotecnología, Universidad de Alicante, 03690 Alicante, Spain; (N.H.-R.); (L.R.-G.); (P.S.-E.); (A.R.)
| | - Paula Sáez-Espinosa
- Departamento de Biotecnología, Universidad de Alicante, 03690 Alicante, Spain; (N.H.-R.); (L.R.-G.); (P.S.-E.); (A.R.)
| | - Jon Aizpurua
- Cátedra Human Fertility, Universidad de Alicante, 03080 Alicante, Spain;
- IVF Spain, Medicina Reproductiva, 03540 Alicante, Spain
| | - Manuel Avilés
- Departamento de Biología Celular e Histología, Universidad de Murcia, Instituto Murciano de Investigación Sociosanitaria (IMIB), 30003 Murcia, Spain;
| | - Alejandro Romero
- Departamento de Biotecnología, Universidad de Alicante, 03690 Alicante, Spain; (N.H.-R.); (L.R.-G.); (P.S.-E.); (A.R.)
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14
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Gimeno-Martos S, Santorromán-Nuez M, Cebrián-Pérez JA, Muiño-Blanco T, Pérez-Pé R, Casao A. Involvement of progesterone and estrogen receptors in the ram sperm acrosome reaction. Domest Anim Endocrinol 2021; 74:106527. [PMID: 32799038 DOI: 10.1016/j.domaniend.2020.106527] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Revised: 07/01/2020] [Accepted: 07/17/2020] [Indexed: 12/28/2022]
Abstract
The steroid hormones 17-β estradiol (E2) and progesterone (P4) can regulate capacitation, hyperactive motility, and the acrosome reaction (AR) during the sperm transit through the female tract. Moreover, exogenous P4 and E2 can induce the AR in ovine spermatozoa, and progesterone receptor (PR) and estrogen receptors (ERα and ERβ) are present in these cells. Thus, to investigate whether the effects both steroid hormones in ram sperm capacitation and AR are receptor-mediated, we incubated them with receptor agonists (tanaproget 1 μM and 5 μM for PR or resveratrol 5 μM and 10 μM for ER) or antagonists (mifepristone 4 μM and 40 μM for PR or tamoxifen 5 μM and 10 μM for ER) in capacitating conditions. The addition of receptor modulators did not affect sperm viability or total motility, although changes in progressive motility were detected. The incubation with both receptor agonists increased the percentage of acrosome-reacted spermatozoa, evaluated by chlortetracycline staining, when compared with the capacitated nontreated sample (Cap-C, P < 0.001). Moreover, the ER agonist resveratrol 10 μM provoked a greater AR than E2 (P < 0.01). Furthermore, the incubation with the receptor antagonists prevented the induction of the AR by P4 or E2, as the antagonists-treated spermatozoa presented a similar CTC pattern to that of Cap-C. In conclusion, these results confirm that P4 and E2 can induce the AR in ram spermatozoa and that this effect is receptor-mediated.
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Affiliation(s)
- S Gimeno-Martos
- Grupo BIOFITER, Departamento de Bioquímica y Biología Molecular y Celular, Facultad de Veterinaria, Instituto Universitario de Investigación en Ciencias Ambientales de Aragón (IUCA), Universidad de Zaragoza, Zaragoza, Spain
| | - M Santorromán-Nuez
- Grupo BIOFITER, Departamento de Bioquímica y Biología Molecular y Celular, Facultad de Veterinaria, Instituto Universitario de Investigación en Ciencias Ambientales de Aragón (IUCA), Universidad de Zaragoza, Zaragoza, Spain
| | - J A Cebrián-Pérez
- Grupo BIOFITER, Departamento de Bioquímica y Biología Molecular y Celular, Facultad de Veterinaria, Instituto Universitario de Investigación en Ciencias Ambientales de Aragón (IUCA), Universidad de Zaragoza, Zaragoza, Spain
| | - T Muiño-Blanco
- Grupo BIOFITER, Departamento de Bioquímica y Biología Molecular y Celular, Facultad de Veterinaria, Instituto Universitario de Investigación en Ciencias Ambientales de Aragón (IUCA), Universidad de Zaragoza, Zaragoza, Spain
| | - R Pérez-Pé
- Grupo BIOFITER, Departamento de Bioquímica y Biología Molecular y Celular, Facultad de Veterinaria, Instituto Universitario de Investigación en Ciencias Ambientales de Aragón (IUCA), Universidad de Zaragoza, Zaragoza, Spain
| | - A Casao
- Grupo BIOFITER, Departamento de Bioquímica y Biología Molecular y Celular, Facultad de Veterinaria, Instituto Universitario de Investigación en Ciencias Ambientales de Aragón (IUCA), Universidad de Zaragoza, Zaragoza, Spain.
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15
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Huerta-Retamal N, Sáez-Espinosa P, Robles-Gómez L, Romero A, Aizpurua J, Gómez-Torres MJ. [Localization of Arylsulfatase A during in vitro incubation of human spermatozoa in capacitation media]. Rev Int Androl 2020; 19:129-136. [PMID: 33342716 DOI: 10.1016/j.androl.2020.08.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Revised: 05/19/2020] [Accepted: 08/08/2020] [Indexed: 10/22/2022]
Abstract
OBJECTIVE To determine the localization and distribution of the ArylsulfataseA receptor (ARSA) in human spermatozoa before and after their incubation in capacitation medium for 1 and 4hours. MATERIAL AND METHODS Semen samples were obtained from five normozoospermic donors. Capacitation was by swim-up technique using capacitation medium for 1 and 4hours. Localization of the ARSA receptor was assessed by indirect immunofluorescence using confocal microscopy. A minimum of 200cells were observed in each physiological condition. RESULTS Before incubation, no representative pattern was observed among the cells positive for this biomarker (8.61%). This percentage increased significantly after incubation in the capacitation medium for 1 and 4hours (61.86% and 63.38% respectively). A majority pattern was observed among the capacitated cells, with intense labelling in the acrosomal region (27.11% and 28.20% after 1 and 4hours respectively). It should be noted that the pattern corresponding to fluorescence at the level of the periacrosomal region was not observed in the spermatozoa prior to incubation. Only after incubation in capacitation medium for 1 and 4hours, 9.13% and 12.78% of cells with such distribution were detected. CONCLUSIONS In vitro capacitation, regardless of time, favours the immunolocalization of ARSA in the cephalic region of the spermatozoa. The most representative subpopulation after this process was the one in which ARSA was intensely and homogeneously distributed in the acrosome region, involved in primary gamete recognition.
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Affiliation(s)
| | | | - Laura Robles-Gómez
- Departamento de Biotecnología, Universidad de Alicante, Alicante, España
| | - Alejandro Romero
- Departamento de Biotecnología, Universidad de Alicante, Alicante, España
| | - Jon Aizpurua
- IVF Spain, Medicina Reproductiva, Alicante, España; Cátedra Human Fertility, Universidad de Alicante, Alicante, España
| | - María José Gómez-Torres
- Departamento de Biotecnología, Universidad de Alicante, Alicante, España; Cátedra Human Fertility, Universidad de Alicante, Alicante, España.
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16
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Huerta-Retamal N, Sáez-Espinosa P, Robles-Gómez L, Avilés M, Romero A, Aizpurua J, Gómez-Torres MJ. Human sperm chaperone HSPA2 distribution during in vitro capacitation. J Reprod Immunol 2020; 143:103246. [PMID: 33246276 DOI: 10.1016/j.jri.2020.103246] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Revised: 09/28/2020] [Accepted: 11/05/2020] [Indexed: 11/30/2022]
Abstract
Human fertilization success depends on the ability of the spermatozoa to undergo capacitation. Even though this process can be conducted in vitro, the optimal time for a sperm cell to complete capacitation in vitro is still under discussion due to the lack of proper capacitation biomarkers. Here, we evaluated the influence of in vitro capacitation time on HSPA2 distribution over human sperm head testing this chaperone as a potential capacitation biomarker. The chaperone was assessed in human spermatozoa from 16 normozoospermic donors using indirect immunofluorescence in uncapacitated, one and four-hour capacitated spermatozoa. The percentage of HSPA2 immunofluorescent cells before and after one hour of capacitation did not differ significantly. However, after four hours of capacitation, we observed a significantly higher percentage of HSPA2 labelled cells. In fluorescent cells analysed before capacitation, we could not identify a predominant distribution pattern. Meanwhile, after capacitation, most sperm showed a highly labelled equatorial band accompanied by a homogeneous fluorescence throughout the acrosomal region. Our findings suggest that HSPA2 needs more than one hour of in vitro capacitation for being correctly distributed in the anterior region of the sperm head. In conclusion, the present study provides solid evidences for the utility of HSPA2 as a biomarker of human sperm in vitro capacitation. Due to its importance during egg-sperm recognition, the use of HSPA2 as a biomarker before an artificial reproduction technique may be suggested, in addition to a longer capacitation time during sperm preparation.
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Affiliation(s)
| | - Paula Sáez-Espinosa
- Departamento de Biotecnología, Universidad de Alicante, Alicante, 03690, Spain
| | - Laura Robles-Gómez
- Departamento de Biotecnología, Universidad de Alicante, Alicante, 03690, Spain
| | - Manuel Avilés
- Departamento de Biología celular e Histología, Universidad de Murcia, Instituto Murciano de Investigación Sociosanitaria (IMIB-Arrixaca), Murcia, 30003, Spain
| | - Alejandro Romero
- Departamento de Biotecnología, Universidad de Alicante, Alicante, 03690, Spain
| | - Jon Aizpurua
- IVF Spain, Medicina Reproductiva, Alicante, 03540, Spain; Cátedra Human Fertility, Universidad de Alicante, Alicante, Spain
| | - María José Gómez-Torres
- Departamento de Biotecnología, Universidad de Alicante, Alicante, 03690, Spain; Cátedra Human Fertility, Universidad de Alicante, Alicante, Spain.
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17
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Mahaldashtian M, Khalili MA, Nottola SA, Woodward B, Macchiarelli G, Miglietta S. Does in vitro application of pentoxifylline have beneficial effects in assisted male reproduction? Andrologia 2020; 53:e13722. [PMID: 33112447 DOI: 10.1111/and.13722] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2020] [Revised: 05/13/2020] [Accepted: 05/24/2020] [Indexed: 01/31/2023] Open
Abstract
Application of nonspecific phosphodiesterases inhibitors, such as pentoxifylline (PTX), is a strategy utilised to aid sperm selection from immotile sperm samples prior to ICSI. No extensive studies have yet been performed to verify the safety of the clinical outcomes of ICSI after PTX administration. In this article, we summarise the data reported in the literature that assess the implication of in vitro usage of PTX on sperm parameters, as well as clinical outcomes during assisted male reproduction programme.
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Affiliation(s)
- Maryam Mahaldashtian
- Department of Reproductive Biology, Yazd Reproductive Sciences Institute, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Mohammad Ali Khalili
- Department of Reproductive Biology, Yazd Reproductive Sciences Institute, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Stefania Annarita Nottola
- Department of Anatomy, Histology, Forensic Medicine and Orthopaedics, La Sapienza University of Rome, Rome, Italy
| | | | - Guido Macchiarelli
- Department of Life, Health and Environmental Sciences, University of L'Aquila, L'Aquila, Italy
| | - Selenia Miglietta
- Department of Anatomy, Histology, Forensic Medicine and Orthopaedics, La Sapienza University of Rome, Rome, Italy
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18
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Sáez-Espinosa P, Ferrández-Rives M, Huerta-Retamal N, Robles-Gómez L, Aizpurua J, Romero A, Gómez-Torres MJ. Proper cytoskeleton α-tubulin distribution is concomitant to tyrosine phosphorylation during in vitro capacitation and acrosomal reaction in human spermatozoa. Cytoskeleton (Hoboken) 2020; 77:333-341. [PMID: 32875747 DOI: 10.1002/cm.21631] [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: 06/16/2020] [Revised: 08/20/2020] [Accepted: 08/28/2020] [Indexed: 11/06/2022]
Abstract
Spermatozoa motility is a key parameter during the fertilization process. In this context, spermatozoa tyrosine protein phosphorylation and an appropriate cytoskeleton α-tubulin distribution are some of the most important physiological events involved in motility. However, the relationship between these two biomarkers remains poorly defined. Here, we characterized simultaneously by immunocytochemistry the α-tubulin (TUBA4A) distribution and the tyrosine phosphorylation at flagellum before capacitation, during different capacitation times (1 and 4 hr), and after acrosome reaction induction in human spermatozoa. We found that the absence of spermatozoa phosphorylation in tyrosine residues positively and significantly correlated (p < 0.05) with the terminal piece α-tubulin flagellar distribution in all physiological conditions. Conversely, we observed a positive significant correlation (p < 0.01) between phosphorylated spermatozoa and continuous α-tubulin distribution in spermatozoa flagellum, independently of the physiological condition. Similarly, the subpopulation of spermatozoa with tyrosine phosphorylated and continuous α-tubulin increases with longer capacitation times and after the acrosome reaction induction. Overall, these findings provide novel insights into the post-transcriptional physiological events associated to α-tubulin and the tyrosine phosphorylation during fertilization, which present potential implications for the improvement of spermatozoa selection methods.
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Affiliation(s)
| | | | | | | | - Jon Aizpurua
- Reproductive Medicine, IVF Spain, Alicante, Spain
| | - Alejandro Romero
- Department of Biotechnology, University of Alicante, Alicante, Spain
| | - María José Gómez-Torres
- Department of Biotechnology, University of Alicante, Alicante, Spain.,Reproductive Medicine, IVF Spain, Alicante, Spain.,Cathedra of Human Fertility, University de Alicante, Alicante, Spain
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19
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Ruiz-Díaz S, Oseguera-López I, De La Cuesta-Díaz D, García-López B, Serres C, Sanchez-Calabuig MJ, Gutiérrez-Adán A, Perez-Cerezales S. The Presence of D-Penicillamine during the In Vitro Capacitation of Stallion Spermatozoa Prolongs Hyperactive-Like Motility and Allows for Sperm Selection by Thermotaxis. Animals (Basel) 2020; 10:ani10091467. [PMID: 32825582 PMCID: PMC7552178 DOI: 10.3390/ani10091467] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Revised: 08/12/2020] [Accepted: 08/18/2020] [Indexed: 12/20/2022] Open
Abstract
Assisted reproductive technologies (ARTs) in the horse still yield suboptimal results in terms of pregnancy rates. One of the reasons for this is the lack of optimal conditions for the sperm capacitation in vitro. This study assesses the use of synthetic human tubal fluid (HTF) supplemented with D-penicillamine (HTF + PEN) for the in vitro capacitation of frozen/thawed stallion spermatozoa by examining capacitation-related events over 180 min of incubation. Besides these events, we explored the in vitro capacity of the spermatozoa to migrate by thermotaxis and give rise to a population of high-quality spermatozoa. We found that HTF induced higher levels of hyperactive-like motility and protein tyrosine phosphorylation (PTP) compared to the use of a medium commonly used in this species (Whitten's). Also, HTF + PEN was able to maintain this hyperactive-like motility, otherwise lost in the absence of PEN, for 180 min, and also allowed for sperm selection by thermotaxis in vitro. Remarkably, the selected fraction was enriched in spermatozoa showing PTP along the whole flagellum and lower levels of DNA fragmentation when compared to the unselected fraction (38% ± 11% vs 4.4% ± 1.1% and 4.2% ± 0.4% vs 11% ± 2% respectively, t-test p < 0.003, n = 6). This procedure of in vitro capacitation of frozen/thawed stallion spermatozoa in HTF + PEN followed by in vitro sperm selection by thermotaxis represents a promising sperm preparation strategy for in vitro fertilization and intracytoplasmic sperm injection in this species.
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Affiliation(s)
- Sara Ruiz-Díaz
- Department of Animal Reproduction, National Institute for Agriculture and Food Research and Technology (INIA), 28040 Madrid, Spain; (S.R.-D.); (D.D.L.C.-D.); (B.G.-L.); (S.P.-C.)
- Mistral Fertility Clinics S.L., Clínica Tambre, 28002 Madrid, Spain
| | - Ivan Oseguera-López
- Unidad Iztapalapa, Universidad Autónoma Metropolitana, Ciudad de México 09340, Mexico;
| | - David De La Cuesta-Díaz
- Department of Animal Reproduction, National Institute for Agriculture and Food Research and Technology (INIA), 28040 Madrid, Spain; (S.R.-D.); (D.D.L.C.-D.); (B.G.-L.); (S.P.-C.)
| | - Belén García-López
- Department of Animal Reproduction, National Institute for Agriculture and Food Research and Technology (INIA), 28040 Madrid, Spain; (S.R.-D.); (D.D.L.C.-D.); (B.G.-L.); (S.P.-C.)
| | - Consuelo Serres
- Departamento de Medicina y Cirugía Animal, Facultad de Veterinaria, Universidad Complutense de Madrid (UCM), 28040 Madrid, Spain; (C.S.); (M.J.S.-C.)
| | - Maria José Sanchez-Calabuig
- Departamento de Medicina y Cirugía Animal, Facultad de Veterinaria, Universidad Complutense de Madrid (UCM), 28040 Madrid, Spain; (C.S.); (M.J.S.-C.)
| | - Alfonso Gutiérrez-Adán
- Department of Animal Reproduction, National Institute for Agriculture and Food Research and Technology (INIA), 28040 Madrid, Spain; (S.R.-D.); (D.D.L.C.-D.); (B.G.-L.); (S.P.-C.)
- Correspondence:
| | - Serafin Perez-Cerezales
- Department of Animal Reproduction, National Institute for Agriculture and Food Research and Technology (INIA), 28040 Madrid, Spain; (S.R.-D.); (D.D.L.C.-D.); (B.G.-L.); (S.P.-C.)
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20
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Sharpe A, Bhandari H, Miller D. Is there a role for phosphodiesterase inhibitors in the treatment of male subfertility? HUM FERTIL 2020; 25:13-23. [PMID: 32666851 DOI: 10.1080/14647273.2020.1793420] [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] [Indexed: 10/23/2022]
Abstract
Intracytoplasmic sperm injection (ICSI) is frequently used to overcome severe deficits in semen quality. Concerns, however, are arising over its increasing use for non-male factor infertility. Moreover, increased risk of cardiovascular disease, congenital abnormalities, aneuploidies and childhood cancers have all been reported in the literature in relation to ICSI and it is possible that the quality of sperm chosen for injection may be an important factor in these unwanted outcomes. Given the wider adoption of ICSI to treat beyond the requirements of male infertility alone, research focussed on alternative methods to diagnose and treat the infertile couple is gaining increasing attention. This review focuses on the information available to date on the use of non-selective phosphodiesterase inhibitors (PDEI), specifically pentoxifylline (PF), caffeine (CF) and theophylline (TP) to stimulate sperm motility, thereby potentially reducing the need for ICSI in certain patient groups who may benefit from either expectant management or from a less stressful, minimally invasive and inexpensive treatment such as intrauterine insemination (IUI). The review focuses firstly on the mechanism of action of PDEI followed by treatment effects on sperm parameters such as motility and hyperactivated motility and sperm DNA integrity. Specific clinical implications are discussed that outline the potential role of PDEI in clinical practice and highlights areas in need of further research.
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Affiliation(s)
- Abigail Sharpe
- Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Leeds, UK
| | | | - David Miller
- Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Leeds, UK
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21
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Khasin LG, Della Rosa J, Petersen N, Moeller J, Kriegsfeld LJ, Lishko PV. The Impact of Di-2-Ethylhexyl Phthalate on Sperm Fertility. Front Cell Dev Biol 2020; 8:426. [PMID: 32695775 PMCID: PMC7338605 DOI: 10.3389/fcell.2020.00426] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Accepted: 05/07/2020] [Indexed: 01/26/2023] Open
Abstract
A growing number of studies point to reduced fertility upon chronic exposure to endocrine-disrupting chemicals (EDCs) such as phthalates and plasticizers. These toxins are ubiquitous and are often found in food and beverage containers, medical devices, as well as in common household and personal care items. Animal studies with EDCs, such as phthalates and bisphenol A have shown a dose-dependent decrease in fertility and embryo toxicity upon chronic exposure. However, limited research has been conducted on the acute effects of these EDCs on male fertility. Here we used a murine model to test the acute effects of four ubiquitous environmental toxins: bisphenol A (BPA), di-2-ethylhexyl phthalate (DEHP), diethyl phthalate (DEP), and dimethyl phthalate (DMP) on sperm fertilizing ability and pre-implantation embryo development. The most potent of these toxins, di-2-ethylhexyl phthalate (DEHP), was further evaluated for its effect on sperm ion channel activity, capacitation status, acrosome reaction and generation of reactive oxygen species (ROS). DEHP demonstrated a profound hazardous effect on sperm fertility by producing an altered capacitation profile, impairing the acrosome reaction, and, interestingly, also increasing ROS production. These results indicate that in addition to its known chronic impact on reproductive potential, DEHP also imposes acute and profound damage to spermatozoa, and thus, represents a significant risk to male fertility.
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Affiliation(s)
- Liliya Gabelev Khasin
- Department of Molecular & Cell Biology, University of California, Berkeley, Berkeley, CA, United States
| | - John Della Rosa
- Department of Molecular & Cell Biology, University of California, Berkeley, Berkeley, CA, United States.,Department of Chemistry, University of California, Berkeley, Berkeley, CA, United States
| | - Natalie Petersen
- Department of Molecular & Cell Biology, University of California, Berkeley, Berkeley, CA, United States
| | - Jacob Moeller
- Graduate Group in Endocrinology, University of California, Berkeley, Berkeley, CA, United States
| | - Lance J Kriegsfeld
- Graduate Group in Endocrinology, University of California, Berkeley, Berkeley, CA, United States.,Department of Integrative Biology, University of California, Berkeley, Berkeley, CA, United States.,Department of Psychology, University of California, Berkeley, Berkeley, CA, United States.,Helen Wills Neuroscience Institute, University of California, Berkeley, Berkeley, CA, United States
| | - Polina V Lishko
- Department of Molecular & Cell Biology, University of California, Berkeley, Berkeley, CA, United States.,Graduate Group in Endocrinology, University of California, Berkeley, Berkeley, CA, United States
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22
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Park YJ, Rahman MS, Pang WK, Ryu DY, Kim B, Pang MG. Bisphenol A affects the maturation and fertilization competence of spermatozoa. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 196:110512. [PMID: 32244115 DOI: 10.1016/j.ecoenv.2020.110512] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Revised: 03/16/2020] [Accepted: 03/17/2020] [Indexed: 06/11/2023]
Abstract
Although there are numerous studies on bisphenol A (BPA) on the testis and spermatozoa, the effect of BPA on the physiological link between the testis and maturation of spermatozoa has not been studied. To provide an optimal environment (acidic pH) for sperm maturation in the epididymis, clear cells secrete protons and principal cells reabsorb bicarbonate and the secreted proton. Because of its crucial role in sperm maturation and fertility, functional changes in the epididymis following BPA exposure must be considered to fully understand the mechanisms of BPA on male fertility. Here, we identified the adverse effects of BPA exposure during puberty in male mice. CD-1 male mice were gavaged daily with vehicle (corn oil) and 50 mg BPA/kg-BW for 6 weeks. We determined the changes in epididymis, functional sperm parameters including motility, capacitation status, tyrosine phosphorylation, and fertility-related protein expression and in vitro and in vivo fertility rate following BPA exposure. Expression of vacuolar-type H + -ATPase is necessary for the secretion of protons by clear cells of the caput epididymis and was directly down-regulated following BPA exposure, while there were no changes in the other epithelial cell types in the epididymis. Also, pERK 1/2 signaling pathway was increased significantly in the caput epididymis following BPA exposure. Consequently, the luminal pH slightly increased, resulting in premature capacitation of spermatozoa. Moreover, there was a significant loss of the acrosomal membrane following an increase of protein tyrosine phosphorylation, while PKA activity decreased during sperm capacitation. Fertility-related proteins also showed aberrant expression upon BPA exposure. These modifications resulted in decreased male fertility in vitro and in vivo.
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Affiliation(s)
- Yoo-Jin Park
- Department of Animal Science & Technology and BET Research Institute, Chgroung-Ang University, Anseong, Gyeonggi-do, 17546, Republic of Korea
| | - Md Saidur Rahman
- Department of Animal Science & Technology and BET Research Institute, Chgroung-Ang University, Anseong, Gyeonggi-do, 17546, Republic of Korea
| | - Won-Ki Pang
- Department of Animal Science & Technology and BET Research Institute, Chgroung-Ang University, Anseong, Gyeonggi-do, 17546, Republic of Korea
| | - Do-Yeal Ryu
- Department of Animal Science & Technology and BET Research Institute, Chgroung-Ang University, Anseong, Gyeonggi-do, 17546, Republic of Korea
| | - Bongki Kim
- Department of Animal Resources Science, Kongju National University, Yesan, Chungnam-do, 32439, Republic of Korea
| | - Myung-Geol Pang
- Department of Animal Science & Technology and BET Research Institute, Chgroung-Ang University, Anseong, Gyeonggi-do, 17546, Republic of Korea.
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23
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Shin TE, Park JW, Jeon WY, Lee EJ, Kwon H, Jeon B, Kang HE, Kim MJ, Kim DK, Kim HH, Ko JJ, Lee JH. Motility enhancement of human spermatozoa using electrical stimulation in the nano-Ampere range with enzymatic biofuel cells. PLoS One 2020; 15:e0228097. [PMID: 32078626 PMCID: PMC7032714 DOI: 10.1371/journal.pone.0228097] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2019] [Accepted: 01/07/2020] [Indexed: 11/19/2022] Open
Abstract
Sperm motility is a crucial factor for normal fertilisation that is partly supported by mitochondrial activity. Enzymatic biofuel cells (EBFCs) generate electric currents by an electron grade from anodic to cathodic electrodes in a culture media. We demonstrate that electrical stimulation by EBFC at the nano-Ampere range enhances sperm motility that can potentially allow the development of a new therapeutic tool for male infertility, including poor motility. EBFC was set up with three different electrical currents (112 nA/cm2 and 250 nA/cm2) at two different times (1 h, 2 h). Each sample was evaluated for its motility by computer-assisted sperm analyses and sperm viability testing. In the expanded study, we used the optimal electrical current of the EBFC system to treat asthenozoospermia and sperm with 0% motility. Results showed that optimal electrical stimulation schemes with EBFCs enhanced sperm motility by 30-40% compared with controls. Activated spermatozoa led to tyrosine phosphorylation in the tail area of the sperm following the electrical stimulation in the nano-Ampere range. However, the electrically stimulated group did not exhibit increased acrosomal reaction rates compared with the control group. In cases related to asthenozoospermia, 40% of motility was recovered following the electrical stimulation at the nano-Ampere range. However, motility is not recovered in sperm with 0% motility. In conclusion, we found that sperm motility was enhanced by exposure to electrical currents in the nano-Ampere range induced by optimal EBFCs. Electrical stimulation enhanced the motility of the sperm though tyrosine phosphorylation in spermatozoa. Therefore, our results show that electrical currents in the nano-Ampere range can be potentially applied to male infertility therapy as enhancers of sperm motility in assisted reproductive technology.
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Affiliation(s)
- Tai Eun Shin
- CHA Fertility Center Seoul Station, Jung-gu, Seoul, Republic of Korea
| | - Jin Woo Park
- CHA Fertility Center Seoul Station, Jung-gu, Seoul, Republic of Korea
| | - Won-Yong Jeon
- Department of Chemistry, College of Advanced Science, Dankook University, Anseo-dong, Cheonan, Republic of Korea
- School of Chemical Engineering, Sungkyunkwan University, Suwon, Republic of Korea
| | - Eun Ji Lee
- CHA Fertility Center Seoul Station, Jung-gu, Seoul, Republic of Korea
| | - Hyojeong Kwon
- CHA Fertility Center Seoul Station, Jung-gu, Seoul, Republic of Korea
| | - Boyoung Jeon
- CHA Fertility Center Seoul Station, Jung-gu, Seoul, Republic of Korea
| | - Hyo Eun Kang
- CHA Fertility Center Seoul Station, Jung-gu, Seoul, Republic of Korea
| | - Myung Joo Kim
- CHA Fertility Center Seoul Station, Jung-gu, Seoul, Republic of Korea
| | - Dae Keun Kim
- Department of Urology, CHA Fertility Center, Seoul Station, CHA University, Seoul, Republic of Korea
| | - Hyug-Han Kim
- Department of Chemistry, College of Advanced Science, Dankook University, Anseo-dong, Cheonan, Republic of Korea
- * E-mail: (JHL); (JJK); (HHK)
| | - Jung Jae Ko
- Department of Biomedical Science, College of Life Science, CHA University, Pochen, Gyounggi-do, Republic of Korea
- * E-mail: (JHL); (JJK); (HHK)
| | - Jae Ho Lee
- CHA Fertility Center Seoul Station, Jung-gu, Seoul, Republic of Korea
- Department of Biomedical Science, College of Life Science, CHA University, Pochen, Gyounggi-do, Republic of Korea
- * E-mail: (JHL); (JJK); (HHK)
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24
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Nowicka-Bauer K, Nixon B. Molecular Changes Induced by Oxidative Stress that Impair Human Sperm Motility. Antioxidants (Basel) 2020; 9:antiox9020134. [PMID: 32033035 PMCID: PMC7070831 DOI: 10.3390/antiox9020134] [Citation(s) in RCA: 92] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Revised: 01/30/2020] [Accepted: 01/31/2020] [Indexed: 12/19/2022] Open
Abstract
A state of oxidative stress (OS) and the presence of reactive oxygen species (ROS) in the male reproductive tract are strongly correlated with infertility. While physiological levels of ROS are necessary for normal sperm functioning, elevated ROS production can overwhelm the cell's limited antioxidant defenses leading to dysfunction and loss of fertilizing potential. Among the deleterious pleiotropic impacts arising from OS, sperm motility appears to be particularly vulnerable. Here, we present a mechanistic account for how OS contributes to altered sperm motility profiles. In our model, it is suggested that the abundant polyunsaturated fatty acids (PUFAs) residing in the sperm membrane serve to sensitize the male germ cell to ROS attack by virtue of their ability to act as substrates for lipid peroxidation (LPO) cascades. Upon initiation, LPO leads to dramatic remodeling of the composition and biophysical properties of sperm membranes and, in the case of the mitochondria, this manifests in a dissipation of membrane potential, electron leakage, increased ROS production and reduced capacity for energy production. This situation is exacerbated by the production of cytotoxic LPO byproducts such as 4-hydroxynonenal, which dysregulate molecules associated with sperm bioenergetic pathways as well as the structural and signaling components of the motility apparatus. The impact of ROS also extends to lesions in the paternal genome, as is commonly seen in the defective spermatozoa of asthenozoospermic males. Concluding, the presence of OS in the male reproductive tract is strongly and positively correlated with reduced sperm motility and fertilizing potential, thus providing a rational target for the development of new therapeutic interventions.
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Affiliation(s)
- Karolina Nowicka-Bauer
- Institute of Human Genetics, Polish Academy of Sciences, 60-479 Poznan, Poland
- Correspondence:
| | - Brett Nixon
- Priority Research Centre for Reproductive Science, School of Environmental and Life Sciences, Discipline of Biological Sciences, University of Newcastle, Callaghan, Newcastle, NSW 2308, Australia;
- Hunter Medical Research Institute, Pregnancy and Reproduction Program, New Lambton Heights, Newcastle, NSW 2305, Australia
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25
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Saez F, Whitfield M, Drevet JR. Impairment of sperm maturation and capacitation due to diet-dependent cholesterol overload. Andrology 2019; 7:654-661. [PMID: 31161683 DOI: 10.1111/andr.12634] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Revised: 03/24/2019] [Accepted: 03/29/2019] [Indexed: 01/04/2023]
Abstract
BACKGROUND Lipid metabolic disorders (dyslipidemia) are constantly increasing in occidental societies and lead to the development of pathologies such as obesity, diabetes, and metabolic syndrome. It has been demonstrated that dyslipidemia can alter the reproductive function. Animal models have recently been used to show that the offspring of dyslipidemic males could also develop such pathologies and that the transgenerational transmission involved post-testicular sperm maturation. These data targeted the essential role of male gamete epididymal maturation and its importance for the health of the offspring. OBJECTIVES This publication summarizes in the first place experimental data obtained using a mouse model of dyslipidemia-induced post-testicular infertility, knockout mice for the two isoforms of the 'Liver X Receptors' (Lxrα;β-/- ), the major regulators of cholesterol homeostasis. The impact of a high cholesterol diet (HCD) on the protein YWHAZ (14-3-3 ζ or tyrosine 3-monooxygenase/tryptophan 5-monooxygenase activation protein Zeta) was also investigated in our model. MATERIALS AND METHODS In our mouse model, when young fertile Lxrα;β-/- males aged three months were fed four weeks with a HCD, they developed an epididymal phenotype leading to infertility. The level of sperm YWHAZ was evaluated by Western blot and its tyrosine phosphorylation state by immunoprecipitation followed by Western blot. RESULTS Our data revealed that sperm lipid composition and structure were altered, leading to defects of the capacitation-associated signaling pathway. They also showed that both the level and the tyrosine phosphorylation state of YWHAZ were affected by the HCD in sperm cells from Lxrα;β-/- males. DISCUSSION AND CONCLUSION YWHAZ could be a new important regulator of capacitation-associated tyrosine phosphorylation and a marker of dyslipidemia-induced infertility.
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Affiliation(s)
- F Saez
- Team MEPTI (Mécanismes Post-Testiculaires de l'Infertilité), GReD Laboratory, Faculté de Médecine, Université Clermont Auvergne, CNRS, Inserm, CRBC, Clermont-Ferrand, France
| | - M Whitfield
- Team MEPTI (Mécanismes Post-Testiculaires de l'Infertilité), GReD Laboratory, Faculté de Médecine, Université Clermont Auvergne, CNRS, Inserm, CRBC, Clermont-Ferrand, France.,Department of Development, Reproduction and Cancer, INSERM U1016 - CNRS UMR 8104 - Université Paris Descartes, Institut Cochin, Paris, France
| | - J R Drevet
- Team MEPTI (Mécanismes Post-Testiculaires de l'Infertilité), GReD Laboratory, Faculté de Médecine, Université Clermont Auvergne, CNRS, Inserm, CRBC, Clermont-Ferrand, France
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26
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Aoki Y, Tsujimura A, Nagashima Y, Hiramatsu I, Uesaka Y, Nozaki T, Ogishima T, Shirai M, Shoyama Y, Tanaka H, Horie S. Effect of Lepidium meyenii on in vitro fertilization via improvement in acrosome reaction and motility of mouse and human sperm. Reprod Med Biol 2019; 18:57-64. [PMID: 30655722 PMCID: PMC6332831 DOI: 10.1002/rmb2.12251] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Revised: 09/13/2018] [Accepted: 09/26/2018] [Indexed: 12/17/2022] Open
Abstract
PURPOSE The direct effects of Lepidium meyenii (Maca) on sperm remain unclear. Herein, we examined the direct effect of Maca on in vitro fertilization. METHODS We examined the fertilization rate in a mouse model and the rate of acrosome reaction in sperm from transgenic mice expressing enhanced green fluorescent protein (EGFP) in a Maca extract-containing human tubal fluid (HTF) medium. Using human sperm, we assessed acrosome status via fluorescein isothiocyanate-conjugated peanut agglutinin (FITC-PNA) staining and performed detailed analysis using a sperm motility analysis system (SMAS). RESULTS In the mouse model, the fertilization rate in the Maca extract-containing HTF was significantly higher than that in the control medium. The acrosome reaction rate in sperm from transgenic mice expressing EGFP was also significantly higher in the Maca extract-containing HTF than that in the control medium. Similarly, a high acrosome reaction rate, identified via FITC-PNA staining of human sperm samples, was found in the Maca extract-containing HTF compared with that in the control medium. Human sperm motility in the Maca extract-containing HTF was also increased compared with that in the control medium as measured using an SMAS. CONCLUSIONS Maca improved in vitro fertilization rates by inducing an acrosome reaction and increasing sperm motility.
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Affiliation(s)
- Yusuke Aoki
- Department of UrologyJuntendo University Urayasu HospitalUrayasuChibaJapan
- Department of UrologyJuntendo University Graduate School of MedicineTokyoJapan
| | - Akira Tsujimura
- Department of UrologyJuntendo University Urayasu HospitalUrayasuChibaJapan
| | - Yuki Nagashima
- Department of UrologyJuntendo University Urayasu HospitalUrayasuChibaJapan
| | - Ippei Hiramatsu
- Department of UrologyJuntendo University Urayasu HospitalUrayasuChibaJapan
- Department of UrologyJuntendo University Graduate School of MedicineTokyoJapan
| | - Yuka Uesaka
- Department of UrologyJuntendo University Urayasu HospitalUrayasuChibaJapan
| | - Taiji Nozaki
- Department of UrologyJuntendo University Urayasu HospitalUrayasuChibaJapan
| | - Tatsuya Ogishima
- Department of UrologyJuntendo University Urayasu HospitalUrayasuChibaJapan
| | - Masato Shirai
- Department of UrologyJuntendo University Urayasu HospitalUrayasuChibaJapan
| | - Yukihiro Shoyama
- Faculty of Pharmaceutical SciencesNagasaki International UniversitySaseboNagasakiJapan
| | - Hiromitsu Tanaka
- Faculty of Pharmaceutical SciencesNagasaki International UniversitySaseboNagasakiJapan
| | - Shigeo Horie
- Department of UrologyJuntendo University Graduate School of MedicineTokyoJapan
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27
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Li Y, Li RH, Ran MX, Zhang Y, Liang K, Ren YN, He WC, Zhang M, Zhou GB, Qazi IH, Zeng CJ. High throughput small RNA and transcriptome sequencing reveal capacitation-related microRNAs and mRNA in boar sperm. BMC Genomics 2018; 19:736. [PMID: 30305024 PMCID: PMC6180635 DOI: 10.1186/s12864-018-5132-9] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2018] [Accepted: 09/28/2018] [Indexed: 12/21/2022] Open
Abstract
Background Capacitation, a prerequisite for oocyte fertilization, is a complex process involving series of structural and functional changes in sperms such as membrane modifications, modulation of enzyme activities, and protein phosphorylation. In order to penetrate and fertilize an oocyte, mammalian sperms must undergo capacitation. Nevertheless, the process of sperm capacitation remains poorly understood and requires further elucidation. In the current study, via high throughput sequencing, we identified and explored the differentially expressed microRNAs (miRNAs) and mRNAs involved in boar sperm capacitation. Results We identified a total of 5342 mRNAs and 204 miRNAs that were differentially expressed in fresh and capacitated boar sperms. From these, 12 miRNAs (8 known and 4 newly identified miRNAs) and their differentially expressed target mRNAs were found to be involved in sperm capacitation-related PI3K-Akt, MAPK, cAMP-PKA and Ca2+signaling pathways. Conclusions Our study is first to provide the complete miRNA and transcriptome profiles of boar sperm. Our findings provide important insights for the understanding of the RNA profile in boar sperm and future elucidation of the underlying molecular mechanism relevant to mammalian sperm capacitation. Electronic supplementary material The online version of this article (10.1186/s12864-018-5132-9) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Yuan Li
- College of Animal Sciences and Technology, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China.,Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, 611130, Sichuan Province, China
| | - Rong-Hong Li
- College of Animal Sciences and Technology, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China.,Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, 611130, Sichuan Province, China
| | - Ming-Xia Ran
- College of Animal Sciences and Technology, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China.,Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, 611130, Sichuan Province, China
| | - Yan Zhang
- College of Animal Sciences and Technology, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China.,Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, 611130, Sichuan Province, China
| | - Kai Liang
- College of Animal Sciences and Technology, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China.,Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, 611130, Sichuan Province, China
| | - Ying-Nan Ren
- College of Animal Sciences and Technology, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China.,Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, 611130, Sichuan Province, China
| | - Wen-Cheng He
- College of Animal Sciences and Technology, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China.,Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, 611130, Sichuan Province, China
| | - Ming Zhang
- College of Animal Sciences and Technology, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China.,Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, 611130, Sichuan Province, China
| | - Guang-Bin Zhou
- College of Animal Sciences and Technology, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China.,Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, 611130, Sichuan Province, China
| | - Izhar Hyder Qazi
- College of Animal Sciences and Technology, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China.,Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, 611130, Sichuan Province, China.,Department of Veterinary Anatomy & Histology, Shaheed Benazir Bhutto University of Veterinary and Animal Sciences, Sakrand, Sindh, 67210, Pakistan
| | - Chang-Jun Zeng
- College of Animal Sciences and Technology, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China. .,Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, 611130, Sichuan Province, China.
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28
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Yousefi S, Ahmadi-hamedani M, Narenji Sani R, Moslemi HR, Ghafari Khaligh S, Darvishi MM. Pentoxifylline mitigates detrimental impact of chronic nonbacterial prostatitis on sperm characteristics, reproductive hormones and histopathology in rats. Andrologia 2017; 50. [DOI: 10.1111/and.12932] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/03/2017] [Indexed: 01/25/2023] Open
Affiliation(s)
- S. Yousefi
- Semnan University of Veterinary Medicine; Semnan Iran
| | - M. Ahmadi-hamedani
- Department of Clinical Sciences; Faculty of Veterinary Medicine; Semnan University; Semnan Iran
| | - R. Narenji Sani
- Department of Clinical Sciences; Faculty of Veterinary Medicine; Semnan University; Semnan Iran
| | - H. R. Moslemi
- Department of Clinical Sciences; Faculty of Veterinary Medicine; Semnan University; Semnan Iran
| | - S. Ghafari Khaligh
- Department of Pathobiology; Faculty of Veterinary Medicine; Semnan University; Semnan Iran
| | - M. M. Darvishi
- Department of Pathobiology; Faculty of Veterinary Medicine; Semnan University; Semnan Iran
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29
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Whitfield M, Guiton R, Rispal J, Acar N, Kocer A, Drevet JR, Saez F. Dyslipidemia alters sperm maturation and capacitation in LXR-null mice. Reproduction 2017; 154:827-842. [DOI: 10.1530/rep-17-0467] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2017] [Revised: 09/26/2017] [Accepted: 10/02/2017] [Indexed: 12/20/2022]
Abstract
Lipid metabolism disorders (dyslipidemia) are causes of male infertility, but little is known about their impact on male gametes when considering post-testicular maturation events, given that studies concentrate most often on endocrine dysfunctions and testicular consequences. In this study, three-month-old wild-type (wt) and Liver-X-Receptors knock out (Lxrα;β−/−) males were fed four weeks with a control or a lipid-enriched diet containing 1.25% cholesterol (high cholesterol diet (HCD)). The HCD triggered a dyslipidemia leading to sperm post-testicular alterations and infertility. Sperm lipids were analyzed by LC–MS and those fromLxrα;β−/−males fed the HCD showed higher chol/PL and PC/PE ratios compared towt-HCD (P < 0.05) and lower oxysterol contents compared to wt (P < 0.05) orLxrα;β−/−(P < 0.05). These modifications impaired membrane-associated events triggering the tyrosine phosphorylation normally occurring during the capacitation process, as shown by phosphotyrosine Western blots. Using flow cytometry, we showed that a smaller subpopulation of spermatozoa fromLxrα;β−/−-HCD males could raise their membrane fluidity during capacitation (P < 0.05 vswtorwt-HCD) as well as their intracellular calcium concentration (P < 0.05 vsLxrα;β−/−andP < 0.001 vswt). The accumulation of the major sperm calcium efflux pump (PMCA4) was decreased inLxrα;β−/−males fed the HCD (P < 0.05 vsLxrα;β−/−andP < 0.001 vswt). This study is the first showing an impact of dyslipidemia on post-testicular sperm maturation with consequences on the capacitation signaling cascade. It may lead to the identification of fertility prognostic markers in this pathophysiological situation, which could help clinicians to better understand male infertilities which are thus far classified as idiopathic.
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30
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Evaluation of protein phosphorylation in bull sperm during their maturation in the epididymis. Cell Tissue Res 2017; 371:365-373. [DOI: 10.1007/s00441-017-2705-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2017] [Accepted: 09/15/2017] [Indexed: 12/17/2022]
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31
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Navas P, Paffoni A, Intra G, González-Utor A, Clavero A, Gonzalvo MC, Díaz R, Peña R, Restelli L, Somigliana E, Papaleo E, Castilla JA, Viganò P. Obstetric and neo-natal outcomes of ICSI cycles using pentoxifylline to identify viable spermatozoa in patients with immotile spermatozoa. Reprod Biomed Online 2017; 34:414-421. [DOI: 10.1016/j.rbmo.2017.01.009] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2016] [Revised: 12/19/2016] [Accepted: 01/11/2017] [Indexed: 12/18/2022]
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Whitfield M, Pollet-Villard X, Levy R, Drevet JR, Saez F. Posttesticular sperm maturation, infertility, and hypercholesterolemia. Asian J Androl 2016; 17:742-8. [PMID: 26067871 PMCID: PMC4577583 DOI: 10.4103/1008-682x.155536] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Cholesterol is a key molecule in the mammalian physiology of especial particular importance for the reproductive system as it is the common precursor for steroid hormone synthesis. Cholesterol is also a recognized modulator of sperm functions, not only at the level of gametogenesis. Cholesterol homeostasis regulation is crucial for posttesticular sperm maturation, and imbalanced cholesterol levels may particularly affect these posttesticular events. Metabolic lipid disorders (dyslipidemia) affect male fertility but are most of the time studied from the angle of endocrine/testicular consequences. This review will focus on the deleterious effects of a particular dyslipidemia, i.e., hypercholesterolemia, on posttesticular maturation of mammalian spermatozoa.
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Affiliation(s)
| | | | | | - Joël R Drevet
- Team "Mechanisms of post testicular infertility", Génétique Reproduction et Développement, UMR CNRS 6293, INSERM U1103, Clermont Université, 24 Avenue des Landais, BP80026, 63171 Aubière Cedex, France
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Mendeluk GR, Rosales M. Thyroxin Is Useful to Improve Sperm Motility. INTERNATIONAL JOURNAL OF FERTILITY & STERILITY 2016; 10:208-14. [PMID: 27441054 PMCID: PMC4948073 DOI: 10.22074/ijfs.2016.4911] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/02/2015] [Accepted: 11/02/2015] [Indexed: 12/14/2022]
Abstract
Background The aim of this study was to evaluate the non-genomic action of thyroxin
on sperm kinetic and its probable use to improve sperm recovery after applying an en-
richment method like “swim-up” in comparison with the available one, pentoxifylline. Materials and Methods This is an experimental study. A total of 50 patients were re-
cruited, followed by infertility consultation. Conventional sperm assays were performed
according to World Health Organization criteria-2010 (WHO-2010). A Computer Aided
Semen Analysis System was employed to assess kinetic parameters and concentrations.
Number of the motile sperm recovered after preparation technique was calculated. Results Addition of T4 (0.002 µg/ml) to semen samples increased hypermotility at 20
minutes (control: 14.18 ± 5.1% vs. 17.66 ± 8.88%, P<0.03, data expressed as mean ±
SD) and remained unchanged after 40 minutes. Significant differences were found in
the motile sperm recovered after swim-up (control: 8.93×106 ± 9.52× 06vs. 17.20×106
± 21.16×106, P<0.03), achieving all of the tested samples a desirable threshold value
for artificial insemination outcome, while adding pentoxifylline increased the number
of recovered sperm after swim-up in 60% of the studied cases. No synergism between
two treatments could be determined. Conclusion We propose a new physiological tool to artificially improve insemination.
The discussion opens windows to investigate unknown pathways involved in sperm ca-
pacitation and gives innovative arguments to better understand infertility mechanisms.
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Affiliation(s)
- Gabriela Ruth Mendeluk
- Laboratory of Male Fertility, Hospital de Clínicas José de San Martín, Faculty of Pharmacy and Biochemistry, University of Buenos Aires, Buenos Aires, Argentina
| | - Mónica Rosales
- Laboratory of Endocrinology, Hospital de Clínicas José de San Martín, Faculty of Pharmacy and Biochemistry, University of Buenos Aires, Buenos Aires, Argentina
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34
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Desch L, Bruno C, Herbemont C, Michel F, Bechoua S, Girod S, Sagot P, Fauque P. Impact on ICSI outcomes of adding 24 h of in vitro culture before testicular sperm freezing: a retrospective study. Basic Clin Androl 2015; 25:6. [PMID: 26085932 PMCID: PMC4470024 DOI: 10.1186/s12610-015-0022-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2015] [Accepted: 06/01/2015] [Indexed: 11/22/2022] Open
Abstract
Purpose To compare sperm parameters and intracytoplasmic sperm injection (ICSI) outcomes for testicular spermatozoa frozen on the day of the biopsy (DO) with those frozen after 24 h of in vitro culture (D1). Methods In this retrospective study, from 1999 to 2012, forty-nine azoospermic patients were included to compare sperm (motility and viability) and outcomes (fertilization (FR), implantation (IR), pregnancy (PR) and delivery rates (DR)). Results The in vitro culture increased total motility (+2.8 %, p = 0.0161) but decreased viability (−8.3 %, p = 0.007). After 24 h of culture, the post-thaw changes in motility and viability were not significant. Twenty-six couples underwent ICSI: thirty–four ICSI were performed with spermatozoa cryopreserved at D0 and eighteen with spermatozoa frozen at D1. Cumulated IR and DR were lower for ICSI with D1 spermatozoa than with D0 spermatozoa (IR: 21.6 % with D0 vs. 9.8 % with D1, p = 0.102; DR: 27.5 % with D0 vs. 8.3 % with D1, p = 0.049). Conclusion Despite improving motility, freezing spermatozoa 24 h after testicular biopsy had a potential negative effect on ICSI outcomes, notably on delivery rates. These results may be related to the detrimental impact of the additional culture on the nuclear integrity of sperm.
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Affiliation(s)
- Laurent Desch
- Laboratoire de Biologie de la Reproduction, Hôpital de Dijon, Université de Bourgogne, 2 Bd Mal De Lattre De Tassigny, 21079 Dijon, France
| | - Céline Bruno
- Laboratoire de Biologie de la Reproduction, Hôpital de Dijon, Université de Bourgogne, 2 Bd Mal De Lattre De Tassigny, 21079 Dijon, France
| | - Charlène Herbemont
- Laboratoire de Biologie de la Reproduction, Hôpital de Dijon, Université de Bourgogne, 2 Bd Mal De Lattre De Tassigny, 21079 Dijon, France
| | - Frédéric Michel
- Service de Chirurgie Urologique-Andrologie, Hôpital de Dijon, Université de Bourgogne, Dijon, France
| | - Shaliha Bechoua
- Laboratoire de Biologie de la Reproduction, Hôpital de Dijon, Université de Bourgogne, 2 Bd Mal De Lattre De Tassigny, 21079 Dijon, France
| | - Sophie Girod
- Service de Gynécologie-Obstétrique, Hôpital de Dijon, Université de Bourgogne, Dijon, France
| | - Paul Sagot
- Service de Gynécologie-Obstétrique, Hôpital de Dijon, Université de Bourgogne, Dijon, France
| | - Patricia Fauque
- Laboratoire de Biologie de la Reproduction, Hôpital de Dijon, Université de Bourgogne, 2 Bd Mal De Lattre De Tassigny, 21079 Dijon, France
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35
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Wang J, Qi L, Huang S, Zhou T, Guo Y, Wang G, Guo X, Zhou Z, Sha J. Quantitative phosphoproteomics analysis reveals a key role of insulin growth factor 1 receptor (IGF1R) tyrosine kinase in human sperm capacitation. Mol Cell Proteomics 2015; 14:1104-12. [PMID: 25693802 DOI: 10.1074/mcp.m114.045468] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2014] [Indexed: 12/21/2022] Open
Abstract
One of the most important changes during sperm capacitation is the enhancement of tyrosine phosphorylation. However, the mechanisms of protein tyrosine phosphorylation during sperm capacitation are not well studied. We used label-free quantitative phosphoproteomics to investigate the overall phosphorylation events during sperm capacitation in humans and identified 231 sites with increased phosphorylation levels. Motif analysis using the NetworKIN algorithm revealed that the activity of tyrosine phosphorylation kinases insulin growth factor 1 receptor (IGF1R)/insulin receptor is significantly enriched among the up-regulated phosphorylation substrates during capacitation. Western blotting further confirmed inhibition of IGF1R with inhibitors GSK1904529A and NVP-AEW541, which inhibited the increase in tyrosine phosphorylation levels during sperm capacitation. Additionally, sperm hyperactivated motility was also inhibited by GSK1904529A and NVP-AEW541 but could be up-regulated by insulin growth factor 1, the ligand of IGF1R. Thus, the IGF1R-mediated tyrosine phosphorylation pathway may play important roles in the regulation of sperm capacitation in humans and could be a target for improvement in sperm functions in infertile men.
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Affiliation(s)
- Jing Wang
- From the ‡State Key Laboratory of Reproductive Medicine, Collaborative Innovation Center of Genetics and Development, Department of Histology and Embryology, Nanjing Medical University, Nanjing 210029, China
| | - Lin Qi
- From the ‡State Key Laboratory of Reproductive Medicine, Collaborative Innovation Center of Genetics and Development, Department of Histology and Embryology, Nanjing Medical University, Nanjing 210029, China
| | - Shaoping Huang
- From the ‡State Key Laboratory of Reproductive Medicine, Collaborative Innovation Center of Genetics and Development, Department of Histology and Embryology, Nanjing Medical University, Nanjing 210029, China
| | - Tao Zhou
- From the ‡State Key Laboratory of Reproductive Medicine, Collaborative Innovation Center of Genetics and Development, Department of Histology and Embryology, Nanjing Medical University, Nanjing 210029, China
| | - Yueshuai Guo
- From the ‡State Key Laboratory of Reproductive Medicine, Collaborative Innovation Center of Genetics and Development, Department of Histology and Embryology, Nanjing Medical University, Nanjing 210029, China
| | - Gaigai Wang
- From the ‡State Key Laboratory of Reproductive Medicine, Collaborative Innovation Center of Genetics and Development, Department of Histology and Embryology, Nanjing Medical University, Nanjing 210029, China
| | - Xuejiang Guo
- From the ‡State Key Laboratory of Reproductive Medicine, Collaborative Innovation Center of Genetics and Development, Department of Histology and Embryology, Nanjing Medical University, Nanjing 210029, China
| | - Zuomin Zhou
- From the ‡State Key Laboratory of Reproductive Medicine, Collaborative Innovation Center of Genetics and Development, Department of Histology and Embryology, Nanjing Medical University, Nanjing 210029, China
| | - Jiahao Sha
- From the ‡State Key Laboratory of Reproductive Medicine, Collaborative Innovation Center of Genetics and Development, Department of Histology and Embryology, Nanjing Medical University, Nanjing 210029, China
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Nordhoff V. How to select immotile but viable spermatozoa on the day of intracytoplasmic sperm injection? An embryologist's view. Andrology 2014; 3:156-62. [DOI: 10.1111/andr.286] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2014] [Revised: 09/05/2014] [Accepted: 09/08/2014] [Indexed: 11/27/2022]
Affiliation(s)
- V. Nordhoff
- Department of Clinical Andrology; Centre of Reproductive Medicine and Andrology; University Hospital of Münster; Münster Germany
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37
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Kwon WS, Rahman MS, Pang MG. Diagnosis and prognosis of male infertility in mammal: the focusing of tyrosine phosphorylation and phosphotyrosine proteins. J Proteome Res 2014; 13:4505-17. [PMID: 25223855 DOI: 10.1021/pr500524p] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Male infertility refers to the inability of a man to achieve a pregnancy in a fertile female. In more than one-third of cases, infertility arises due to the male factor. Therefore, developing strategies for the diagnosis and prognosis of male infertility is critical. Simultaneously, a satisfactory model for the cellular mechanisms that regulate normal sperm function must be established. In this regard, tyrosine phosphorylation is one of the most common mechanisms through which several signal transduction pathways are adjusted in spermatozoa. It regulates the various aspects of sperm function, for example, motility, hyperactivation, capacitation, the acrosome reaction, fertilization, and beyond. Several recent large-scale studies have identified the proteins that are phosphorylated in spermatozoa to acquire fertilization competence. However, most of these studies are basal and have not presented an overall mechanism through which tyrosine phosphorylation regulates male infertility. In this review, we focus of this mechanism, discussing most of the tyrosine-phosphorylated proteins in spermatozoa that have been identified to date. We categorized tyrosine-phosphorylated proteins in spermatozoa that regulate male infertility using MedScan Reader (v5.0) and Pathway Studio (v9.0).
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Affiliation(s)
- Woo-Sung Kwon
- Department of Animal Science & Technology, Chung-Ang University , Anseong, Gyeonggi-do 456-756, Republic of Korea
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38
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Wright C, Milne S, Leeson H. Sperm DNA damage caused by oxidative stress: modifiable clinical, lifestyle and nutritional factors in male infertility. Reprod Biomed Online 2014; 28:684-703. [DOI: 10.1016/j.rbmo.2014.02.004] [Citation(s) in RCA: 247] [Impact Index Per Article: 24.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2013] [Revised: 02/01/2014] [Accepted: 02/04/2014] [Indexed: 12/23/2022]
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39
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40
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Shrivastava V, Marmor H, Chernyak S, Goldstein M, Feliciano M, Vigodner M. Cigarette smoke affects posttranslational modifications and inhibits capacitation-induced changes in human sperm proteins. Reprod Toxicol 2014; 43:125-9. [PMID: 24345728 DOI: 10.1016/j.reprotox.2013.12.001] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2013] [Revised: 11/27/2013] [Accepted: 12/05/2013] [Indexed: 11/26/2022]
Abstract
Sperm are highly dependent on posttranslational modifications of proteins. Massive phosphorylation on tyrosine residue is required for sperm capacitation. Sumoylation has also been recently implicated in spermatogenesis and sperm functions. Cigarette smoke is known to cause oxidative stress in different tissues, and several studies suggest that it causes oxidative stress in sperm. Whether tobacco affects posttranslational modifications in human sperm is currently unknown. In this study, we show that a short exposure of human sperm to physiological concentrations of cigarette smoke extract (CSE) causes the partial de-sumoylation of many sperm proteins. Furthermore, the presence of a low concentration of CSE in the human tubal fluid during an induction of in vitro capacitation inhibits the capacitation-associated increase in protein phosphorylation. Collectively, changes in posttranslational modifications may be one of the mechanisms through which exposure to tobacco can negatively affect sperm functions and cause fertility problems.
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Affiliation(s)
- Vibha Shrivastava
- Department of Biology, Stern College, Yeshiva University, New York, NY, United States
| | - Hannah Marmor
- Department of Biology, Stern College, Yeshiva University, New York, NY, United States
| | - Sholom Chernyak
- Department of Biology, Stern College, Yeshiva University, New York, NY, United States
| | - Marc Goldstein
- Department of Urology, Weill Cornell Medical College, New York, NY, United States
| | - Miriam Feliciano
- Department of Urology, Weill Cornell Medical College, New York, NY, United States
| | - Margarita Vigodner
- Department of Biology, Stern College, Yeshiva University, New York, NY, United States; Department of Developmental and Molecular Biology, Albert Einstein College of Medicine, Yeshiva University, Bronx, New York, United States.
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41
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Luño V, López-Úbeda R, García-Vázquez FA, Gil L, Matás C. Boar sperm tyrosine phosphorylation patterns in the presence of oviductal epithelial cells: in vitro, ex vivo, and in vivo models. Reproduction 2013; 146:315-24. [DOI: 10.1530/rep-13-0159] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Spermatozoa transport through the oviduct is a controlled process that regulates sperm capacitation. A crucial event involved in capacitation is protein tyrosine phosphorylation (TP). This study was undertaken to determine whether similarities exist in protein TP distribution between spermatozoa bound or unbound to oviductal epithelial cells (OEC) in three different conditions: i)in vitro, spermatozoa coincubated with OEC cultures; ii)ex vivo, spermatozoa deposited in porcine oviductal explants from slaughtered animals; iii)in vivo, in which sows were inseminated and the oviduct was recovered. The localization of phosphotyrosine protein was determined using indirect immunofluorescence. The distribution of protein TP was significantly (P<0.05) different between bound and unbound cell populations in all experiments. In sows inseminated close to ovulation, spermatozoa were found mainly in the utero–tubal junction, where spermatozoa exhibited higher proportion of flagellum phosphorylation. Spermatozoa not bound to OEC exhibited high levels of protein phosphorylation (phosphorylated equatorial subsegment and acrosome and/or phosphorylated flagellum) in theex vivoandin vivoexperiments (P<0.05). However, unbound spermatozoa coincubated with OEC inin vitroconditions tended to show intermediate levels of TP (equatorial subsegment with or without phosphorylated flagellum). In spermatozoa bound to OEC, protein TP was located in the equatorial subsegment or presented no phosphorylation (P<0.05). Although sperm capacitation conditionsin vivowere not reproduciblein vitroin our experimental conditions, sperm and OEC binding seemed to be a mechanism for selecting spermatozoa with a low level of TP inin vivo,ex vivo, andin vitroexperiments.
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42
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Sati L, Cayli S, Delpiano E, Sakkas D, Huszar G. The pattern of tyrosine phosphorylation in human sperm in response to binding to zona pellucida or hyaluronic acid. Reprod Sci 2013; 21:573-81. [PMID: 24077441 DOI: 10.1177/1933719113504467] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
In mammalian species, acquisition of sperm fertilization competence is dependent on the phenomenon of sperm capacitation. One of the key elements of capacitation is protein tyrosine phosphorylation (TP) in various sperm membrane regions. In previous studies performed, the pattern of TP was examined in human sperm bound to zona pellucida of oocytes. In the present comparative study, TP patterns upon sperm binding to the zona pellucida or hyaluronic acid (HA) were investigated in spermatozoa arising from the same semen samples. Tyrosine phosphorylation, visualized by immunofluorescence, was localized within the acrosomal cap, equatorial head region, neck, and the principal piece. Tyrosine phosphorylation has increased in a time-related manner as capacitation progressed, and the phosphorylation pattern was identical within the principal piece and neck, regardless of the sperm bound to the zona pellucida or HA. Thus, the data demonstrated that the patterns of sperm activation-related TP were similar regardless of the spermatozoa bound to zona pellucida or HA. Further, sperm with incomplete development, as detected by excess cytoplasmic retention, failed to exhibit TP.
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Affiliation(s)
- Leyla Sati
- 1Department of Histology and Embryology, Akdeniz University School of Medicine, Antalya, Turkey
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43
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Aitken RJ, Nixon B. Sperm capacitation: a distant landscape glimpsed but unexplored. Mol Hum Reprod 2013; 19:785-93. [DOI: 10.1093/molehr/gat067] [Citation(s) in RCA: 142] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
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44
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Park YJ, Kim J, You YA, Pang MG. Proteomic Revolution to Improve Tools for Evaluating Male Fertility in Animals. J Proteome Res 2013; 12:4738-47. [DOI: 10.1021/pr400639x] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Yoo-Jin Park
- Department
of Animal Science
and Technology, Chung-Ang University, Anseong, Gyeonggi-do 456-756, Korea
| | - Jin Kim
- Department
of Animal Science
and Technology, Chung-Ang University, Anseong, Gyeonggi-do 456-756, Korea
| | - Young-Ah You
- Department
of Animal Science
and Technology, Chung-Ang University, Anseong, Gyeonggi-do 456-756, Korea
| | - Myung-Geol Pang
- Department
of Animal Science
and Technology, Chung-Ang University, Anseong, Gyeonggi-do 456-756, Korea
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45
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Fardilha M, Ferreira M, Pelech S, Vieira S, Rebelo S, Korrodi-Gregorio L, Sousa M, Barros A, Silva V, da Cruz e Silva OAB, da Cruz e Silva EF. "Omics" of human sperm: profiling protein phosphatases. OMICS-A JOURNAL OF INTEGRATIVE BIOLOGY 2013; 17:460-72. [PMID: 23895272 DOI: 10.1089/omi.2012.0119] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Phosphorylation is a major regulatory mechanism in eukaryotic cells performed by the concerted actions of kinases and phosphatases (PPs). Protein phosphorylation has long been relevant to sperm physiology, from acquisition of motility in the epididymis to capacitation in the female reproductive tract. While the precise kinases involved in the regulation of sperm phosphorylation have been studied for decades, the PPs have only recently received research interest. Tyrosine phosphorylation was first implicated in the regulation of several sperm-related functions, from capacitation to oocyte binding. Only afterwards, in 1996, the inhibition of the serine/threonine-PP phosphoprotein phosphatase 1 (PPP1) by okadaic acid and calyculin-A was shown to initiate motility in caput epididymal sperm. Today, the current mechanisms of sperm motility acquisition based on PPP1 and its regulators are still far from being fully understood. PPP1CC2, specifically expressed in mammalian sperm, has been considered to be the only sperm-specific serine/threonine-PP, while other PPP1 isoforms were thought to be absent from sperm. This article examines the "Omics" of human sperm, and reports, for the first time, the identification of three new serine/threonine-protein PPs, PPP1CB, PPP4C, and PPP6C, in human sperm, together with two tyrosine-PPs, MKP1 and PTP1C. We specifically localized in sperm PPP1CB and PPP1CC2 from the PPP1 subfamily, and PPP2CA, PPP4C, and PPP6C from the PPP2 subfamily of the serine/threonine-PPs. A semi-quantitative analysis was performed to determine the various PPs' differential expression in sperm head and tail. These findings contribute to a comprehensive understanding of human sperm PPs, and warrant further research for their clinical and therapeutic significance.
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Affiliation(s)
- Margarida Fardilha
- Centro de Biologia Celular, Secção Autónoma de Ciências da Saúde, Departamento de Biologia, Universidade de Aveiro, Aveiro, Portugal.
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46
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Hamada AJ, Montgomery B, Agarwal A. Male infertility: a critical review of pharmacologic management. Expert Opin Pharmacother 2012; 13:2511-31. [DOI: 10.1517/14656566.2012.740011] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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47
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Sroyraya M, Hanna PJ, Changklungmoa N, Senarai T, Siangcham T, Tinikul Y, Sobhon P. Expression of the male reproduction-related gene in spermatic ducts of the blue swimming crab, Portunus pelagicus, and transfer of modified protein to the sperm acrosome. Microsc Res Tech 2012; 76:102-12. [PMID: 23108973 DOI: 10.1002/jemt.22142] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2012] [Accepted: 10/20/2012] [Indexed: 01/17/2023]
Abstract
Expression of a sex-specific gene in Macrobrachium rosenbergii (Mr-Mrr), encoding a male reproduction-related (Mrr) protein, has been identified in the spermatic ducts (SDs) and postulated to be involved in sperm maturation processes. M. rosenbergii is the only decapod that the expression and fate of the Mrr protein has been studied. To determine that this protein was conserved in decapods, we firstly used cloning techniques to identify the Mrr gene in two crabs, Portunus pelagicus (Pp-Mrr) and Scylla serrata (Ss-Mrr). We then investigated expression of Pp-Mrr by in situ hybridization, and immunolocalization, as well as phosphorylation and glycosylation modifications, and the fate of the protein in the male reproductive tract. Pp-Mrr was shown to have 632 nucleotides, and a deduced protein of 110 amino acids, with an unmodified molecular weight of 11.79 kDa and a mature protein with molecular weight of 9.16 kDa. In situ hybridization showed that Pp-Mrr is expressed in the epithelium of the proximal, middle, distal SDs, and ejaculatory ducts. In Western blotting, proteins of 10.9 and 17.2 kDa from SDs were all positive using anti-Mrr, antiphosphoserine/threonine, and antiphosphotyrosine. PAS staining showed they were also glycosylated. Immunolocalization studies showed Pp-Mrr in the SD epithelium, lumen, and on the acrosomes of spermatozoa. Immunofluorescence staining indicated the acrosome of spermatozoa contained the Mrr protein, which is phosphorylated with serine/threonine and tyrosine, and also glycosylated. The Mrr is likely to be involved in acrosomal activation during fertilization of eggs.
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Affiliation(s)
- Morakot Sroyraya
- Department of Anatomy, Faculty of Science, Mahidol University, Bangkok 10400, Thailand
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48
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Nordhoff V, Schüring AN, Krallmann C, Zitzmann M, Schlatt S, Kiesel L, Kliesch S. Optimizing TESE-ICSI by laser-assisted selection of immotile spermatozoa and polarization microscopy for selection of oocytes. Andrology 2012; 1:67-74. [DOI: 10.1111/j.2047-2927.2012.00020.x] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2012] [Revised: 08/13/2012] [Accepted: 08/24/2012] [Indexed: 11/28/2022]
Affiliation(s)
| | - A. N. Schüring
- Department of Gynaecology and Obstetrics; University Hospital of Münster; Münster; Germany
| | - C. Krallmann
- Department of Clinical Andrology; Centre of Reproductive Medicine and Andrology; University Hospital of Münster; Münster; Germany
| | - M. Zitzmann
- Department of Clinical Andrology; Centre of Reproductive Medicine and Andrology; University Hospital of Münster; Münster; Germany
| | - S. Schlatt
- Institute of Reproductive and Regenerative Biology; Centre of Reproductive Medicine and Andrology; University Hospital of Münster; Münster; Germany
| | - L. Kiesel
- Department of Gynaecology and Obstetrics; University Hospital of Münster; Münster; Germany
| | - S. Kliesch
- Department of Clinical Andrology; Centre of Reproductive Medicine and Andrology; University Hospital of Münster; Münster; Germany
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49
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González-Fernández L, Macías-García B, Velez IC, Varner DD, Hinrichs K. Calcium–calmodulin and pH regulate protein tyrosine phosphorylation in stallion sperm. Reproduction 2012; 144:411-22. [DOI: 10.1530/rep-12-0067] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
The mechanisms leading to capacitation in stallion sperm are poorly understood. The objective of our study was to define factors associated with regulation of protein tyrosine phosphorylation in stallion sperm. Stallion sperm were incubated for 4 h in modified Whitten's media with or without bicarbonate, calcium, or BSA. When sperm were incubated in air at 30×106/ml at initial pH 7.25, protein tyrosine phosphorylation was detected only in medium containing 25 mM bicarbonate alone; calcium and BSA inhibited phosphorylation. Surprisingly, this inhibition did not occur when sperm were incubated at 10×106/ml. The final pH values after incubation at 30×106 and 10×106 sperm/ml were 7.43±0.04 and 7.83±0.07 (mean±s.e.m.) respectively. Sperm were then incubated at initial pH values of 7.25, 7.90, or 8.50 in either air or 5% CO2. Protein tyrosine phosphorylation increased with increasing final medium pH, regardless of the addition of bicarbonate or BSA. An increase in environmental pH was observed when raw semen was instilled into the uteri of estrous mares and retrieved after 30 min (from 7.47±0.10 to 7.85±0.08), demonstrating a potential physiological role for pH regulation of capacitation. Sperm incubated in the presence of the calmodulin (CaM) inhibitor W-7 exhibited a dose-dependent increase in protein tyrosine phosphorylation, suggesting that the inhibitory effect of calcium was CaM mediated. These results show for the first time a major regulatory role of external pH, calcium, and CaM in stallion sperm protein tyrosine phosphorylation.
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Pérez Aguirreburualde MS, Fernández S, Córdoba M. Acrosin activity regulation by protein kinase C and tyrosine kinase in bovine sperm acrosome exocytosis induced by lysophosphatidylcholine. Reprod Domest Anim 2012; 47:915-20. [PMID: 22335484 DOI: 10.1111/j.1439-0531.2012.01991.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Acrosin is an important proteolytic enzyme that is capable of hydrolysing the zona pellucida in bovine oocyte. Lysophosphatydic acid (LPA) derivated from lysophosphatidylcholine (LPC) is known to trigger the acrosome exocytosis. The present study was aimed at examining the acrosin activity variations in LPC-induced acrosome exocytosis and its regulation by tyrosine kinase, protein kinase C (PKC) and voltage-dependent calcium channels (VDCC) in spermatozoa previously capacitated with heparin or quercetin. The enzyme activities were spectrophotometrically measured using N-α-benzoyl-DL-arginine p-nitroanilide as an acrosin-specific substrate. The capacitation and acrosomal reaction were evaluated by chlorotetracycline assay, and the viability and acrosome integrity were evaluated by the trypan blue stain/differential interference contrast. It was observed that LPC induced acrosome exocytosis and increased the activity of acrosin in spermatozoa previously capacitated with heparin. In heparin/LPC-treated samples, it was observed that the inhibition of tyrosine kinase and PKC blocked the acrosome exocytosis and the acrosin activity (p < 0.05). Under these conditions, in heparin-capacitated spermatozoa, the LPC provokes an acrosin activity increase that is independent of calcium influx through VDCC Type L. In cryopreserved bovine spermatozoa, LPC might require modulation, mainly tyrosine kinase participation with respect to PKC activity to induce acrosome exocytosis and increase acrosin activity.
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Affiliation(s)
- M S Pérez Aguirreburualde
- Cátedra de Química Biológica, Instituto de Investigación y Tecnología en Reproducción animal, Facultad de Ciencias Veterinarias, Universidad de Buenos Aires, Chorroarín, Buenos Aires, Argentina
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