1
|
Lykins J, Moschitto MJ, Zhou Y, Filippova EV, Le HV, Tomita T, Fox BA, Bzik DJ, Su C, Rajagopala SV, Flores K, Spano F, Woods S, Roberts CW, Hua C, El Bissati K, Wheeler KM, Dovgin S, Muench SP, McPhillie M, Fishwick CW, Anderson WF, Lee PJ, Hickman M, Weiss LM, Dubey JP, Lorenzi HA, Silverman RB, McLeod RL. From TgO/GABA-AT, GABA, and T-263 Mutant to Conception of Toxoplasma. iScience 2024; 27:108477. [PMID: 38205261 PMCID: PMC10776954 DOI: 10.1016/j.isci.2023.108477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Revised: 04/28/2023] [Accepted: 11/13/2023] [Indexed: 01/12/2024] Open
Abstract
Toxoplasma gondii causes morbidity, mortality, and disseminates widely via cat sexual stages. Here, we find T. gondii ornithine aminotransferase (OAT) is conserved across phyla. We solve TgO/GABA-AT structures with bound inactivators at 1.55 Å and identify an inactivator selective for TgO/GABA-AT over human OAT and GABA-AT. However, abrogating TgO/GABA-AT genetically does not diminish replication, virulence, cyst-formation, or eliminate cat's oocyst shedding. Increased sporozoite/merozoite TgO/GABA-AT expression led to our study of a mutagenized clone with oocyst formation blocked, arresting after forming male and female gametes, with "Rosetta stone"-like mutations in genes expressed in merozoites. Mutations are similar to those in organisms from plants to mammals, causing defects in conception and zygote formation, affecting merozoite capacitation, pH/ionicity/sodium-GABA concentrations, drawing attention to cyclic AMP/PKA, and genes enhancing energy or substrate formation in TgO/GABA-AT-related-pathways. These candidates potentially influence merozoite's capacity to make gametes that fuse to become zygotes, thereby contaminating environments and causing disease.
Collapse
Affiliation(s)
- Joseph Lykins
- Pritzker School of Medicine, University of Chicago, Chicago, IL 60637, USA
| | - Matthew J. Moschitto
- Department of Chemistry, Department of Molecular Biosciences, Chemistry of Life Processes Institute, Center for Molecular Innovation and Drug Discovery, and Center for Developmental Therapeutics, Northwestern University, Evanston, IL 60208-3113, USA
| | - Ying Zhou
- Department of Ophthalmology and Visual Sciences, The University of Chicago, Chicago, IL 60637, USA
| | - Ekaterina V. Filippova
- Center for Structural Genomics of Infectious Diseases and the Department of Biochemistry and Molecular Genetics, Northwestern University, Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Hoang V. Le
- Department of Chemistry, Department of Molecular Biosciences, Chemistry of Life Processes Institute, Center for Molecular Innovation and Drug Discovery, and Center for Developmental Therapeutics, Northwestern University, Evanston, IL 60208-3113, USA
| | - Tadakimi Tomita
- Division of Parasitology, Department of Pathology, Albert Einstein College of Medicine, Bronx, NY 10461, USA
| | - Barbara A. Fox
- Department of Microbiology and Immunology, Geisel School of Medicine at Dartmouth, Lebanon, NH 03756, USA
| | - David J. Bzik
- Department of Microbiology and Immunology, Geisel School of Medicine at Dartmouth, Lebanon, NH 03756, USA
| | - Chunlei Su
- Department of Microbiology, University of Tennessee, Knoxville, TN 37996, USA
| | - Seesandra V. Rajagopala
- Department of Infectious Diseases, The J. Craig Venter Institute, 9704 Medical Center Drive, Rockville, MD 20850, USA
| | - Kristin Flores
- Center for Structural Genomics of Infectious Diseases and the Department of Biochemistry and Molecular Genetics, Northwestern University, Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Furio Spano
- Department of Infectious Diseases, Istituto Superiore di Sanità, Rome, Italy
| | - Stuart Woods
- Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, Glasgow Scotland, UK
| | - Craig W. Roberts
- Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, Glasgow Scotland, UK
| | - Cong Hua
- Department of Ophthalmology and Visual Sciences, The University of Chicago, Chicago, IL 60637, USA
| | - Kamal El Bissati
- Department of Ophthalmology and Visual Sciences, The University of Chicago, Chicago, IL 60637, USA
| | - Kelsey M. Wheeler
- Department of Ophthalmology and Visual Sciences, The University of Chicago, Chicago, IL 60637, USA
| | - Sarah Dovgin
- Department of Ophthalmology and Visual Sciences, The University of Chicago, Chicago, IL 60637, USA
| | - Stephen P. Muench
- School of Biomedical Sciences and Astbury Centre for Structural Molecular Biology, The University of Leeds, Leeds, West York LS2 9JT, UK
| | - Martin McPhillie
- School of Chemistry and Astbury Centre for Structural Molecular Biology, University of Leeds, Leeds, UK
| | - Colin W.G. Fishwick
- School of Chemistry and Astbury Centre for Structural Molecular Biology, University of Leeds, Leeds, UK
| | - Wayne F. Anderson
- Center for Structural Genomics of Infectious Diseases and the Department of Biochemistry and Molecular Genetics, Northwestern University, Feinberg School of Medicine, Chicago, IL 60611, USA
- Department of Pharmacology, Northwestern University, Chicago, IL 60611, USA
| | - Patricia J. Lee
- Division of Experimental Therapeutics, Military Malaria Research Program, Walter Reed Army Institute of Research, 503 Robert Grant Avenue, Silver Spring, MD 20910, USA
| | - Mark Hickman
- Division of Experimental Therapeutics, Military Malaria Research Program, Walter Reed Army Institute of Research, 503 Robert Grant Avenue, Silver Spring, MD 20910, USA
| | - Louis M. Weiss
- Division of Parasitology, Department of Pathology, Albert Einstein College of Medicine, Bronx, NY 10461, USA
- Division of Infectious Diseases, Department of Medicine, Albert Einstein College of Medicine, Bronx, NY 10461, USA
| | - Jitender P. Dubey
- Animal Parasitic Diseases Laboratory, Beltsville Agricultural Research Center, Agricultural Research Service, United States Department of Agriculture, Beltsville, MD 20705, USA
| | - Hernan A. Lorenzi
- Department of Infectious Diseases, The J. Craig Venter Institute, 9704 Medical Center Drive, Rockville, MD 20850, USA
| | - Richard B. Silverman
- Department of Chemistry, Department of Molecular Biosciences, Chemistry of Life Processes Institute, Center for Molecular Innovation and Drug Discovery, and Center for Developmental Therapeutics, Northwestern University, Evanston, IL 60208-3113, USA
- Department of Pharmacology, Northwestern University, Chicago, IL 60611, USA
| | - Rima L. McLeod
- Department of Ophthalmology and Visual Sciences, The University of Chicago, Chicago, IL 60637, USA
- Department of Pediatrics (Infectious Diseases), Institute of Genomics, Genetics, and Systems Biology, Global Health Center, Toxoplasmosis Center, CHeSS, The College, University of Chicago, Chicago, IL 60637, USA
| |
Collapse
|
2
|
Osman R, Lee S, Almubarak A, Han JI, Yu IJ, Jeon Y. Antioxidant Effects of Myo-Inositol Improve the Function and Fertility of Cryopreserved Boar Semen. Antioxidants (Basel) 2023; 12:1673. [PMID: 37759976 PMCID: PMC10525680 DOI: 10.3390/antiox12091673] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Revised: 08/18/2023] [Accepted: 08/24/2023] [Indexed: 09/29/2023] Open
Abstract
During cryopreservation, sperm undergoes structural and molecular changes such as ice crystal formation, DNA fragmentation, and reactive oxygen species (ROS) production, leading to decreased sperm quality after thawing. Antioxidants play a crucial role in preventing these damages, both in vivo and in vitro. One potent antioxidant is myo-inositol, known for its protective effects on sperm against ROS. This study aimed to investigate the protective effect of myo-inositol on cryopreserved boar semen. The semen was diluted, cooled, and cryopreserved using a BF5 extender. It was then divided into five groups: control and different concentrations of myo-inositol (0.5, 1, 1.5, and 2 mg/mL). The post-thaw evaluation included assessments of motility, viability, acrosome integrity, mitochondrial membrane potential (MMP), caspase activity, gene expression, ROS levels, apoptosis, and IVF with treated semen. Results showed that myo-inositol at 0.5 mg/mL improved motility, acrosome integrity, and fertilization ability. It also reduced the expression of pro-apoptotic genes and increased SMCP expression. Lower concentrations also demonstrated improved viability and reduced apoptosis and ROS levels. In conclusion, myo-inositol treatment during cryopreservation improved sperm quality, reduced apoptosis and ROS levels, and enhanced fertility rates in boar semen.
Collapse
Affiliation(s)
- Rana Osman
- Department of Theriogenology and Reproductive Biotechnology, College of Veterinary Medicine, Jeonbuk National University, Iksan 54596, Republic of Korea; (R.O.); (S.L.); (A.A.); (I.-J.Y.)
| | - Seongju Lee
- Department of Theriogenology and Reproductive Biotechnology, College of Veterinary Medicine, Jeonbuk National University, Iksan 54596, Republic of Korea; (R.O.); (S.L.); (A.A.); (I.-J.Y.)
| | - Areeg Almubarak
- Department of Theriogenology and Reproductive Biotechnology, College of Veterinary Medicine, Jeonbuk National University, Iksan 54596, Republic of Korea; (R.O.); (S.L.); (A.A.); (I.-J.Y.)
- Department of Veterinary Medicine and Surgery, College of Veterinary Medicine, Sudan University of Science and Technology, P.O. Box 204, Hilat Kuku, Khartoum North 11111, Sudan
| | - Jae-Ik Han
- Laboratory of Wildlife Medicine, College of Veterinary Medicine, Jeonbuk National University, Iksan 54596, Republic of Korea;
| | - Il-Jeoung Yu
- Department of Theriogenology and Reproductive Biotechnology, College of Veterinary Medicine, Jeonbuk National University, Iksan 54596, Republic of Korea; (R.O.); (S.L.); (A.A.); (I.-J.Y.)
| | - Yubyeol Jeon
- Department of Theriogenology and Reproductive Biotechnology, College of Veterinary Medicine, Jeonbuk National University, Iksan 54596, Republic of Korea; (R.O.); (S.L.); (A.A.); (I.-J.Y.)
| |
Collapse
|
3
|
Ghasemi A, Amjadi F, Masoumeh Ghazi Mirsaeed S, Mohammad Beigi R, Ghasemi S, Moradi Y, Tahereh Ghazi Mirsaeed S. The effect of Myo-inositol on sperm parameters and pregnancy rate in oligoasthenospermic men treated with IUI: A randomized clinical trial. Int J Reprod Biomed 2019; 17:749-756. [PMID: 31807723 PMCID: PMC6844281 DOI: 10.18502/ijrm.v17i10.5296] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Revised: 02/21/2019] [Accepted: 06/12/2019] [Indexed: 11/24/2022] Open
Abstract
Background In about 40% of the couples, the cause of infertility problems is attributed to men because of low sperm production and disturbed motility of sperm. Pieces of evidence show that Myo-inositol has a potential role for the treatment of sperm morphology and male fertility. Objective This study aimed to determine the effect of Myo-inositol on the sperm parameters and fertility rate in patients with oligoasthenospermia treated by intrauterine insemination (IUI). Materials and Methods This study was a randomized clinical trial conducted on 37 patients with oligoasthenospermia treated by IUI during 2016-2017. In this study, the patients were randomly divided into two groups of oligoasthenospermia treated with (Case group) and without Myo-inositol (Control group). The case group received 0.5 ml of Myo-inositol with a concentration of 2 mg/ml and incubated at 37°C incubator for 2 hr, but the control group had no interventions. Results The results of this study showed that although there was no significant difference in sperm parameters including sperm motility and concentration before processing with Myo-inositol in the case group, but there was a significant increase in sperm motility during the treatment with Myo-inositol. The therapeutic effect of this method was confirmed on induction of pregnancy in 18% of the treated patients, in such a way that was about twice greater than those who did not receive the drug. Conclusion According to the results of this study, the use of Myo-inositol is efficient enough to change sperm parameters to increase the chance of fertility.
Collapse
Affiliation(s)
- Afsane Ghasemi
- Shahid Akbar Abadi Hospital Clinical Research Development Unit (ShACRDU), Iran University of Medical Sciences (IUMS), Tehran, Iran
| | - Fatemehsadat Amjadi
- Cellular and Molecular Research Center, Iran University of Medical Sciences, Tehran, Iran.,Department of Anatomical Sciences, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Seyedeh Masoumeh Ghazi Mirsaeed
- Shahid Akbar Abadi Hospital Clinical Research Development Unit (ShACRDU), Iran University of Medical Sciences (IUMS), Tehran, Iran
| | - Robabeh Mohammad Beigi
- Shahid Akbar Abadi Hospital Clinical Research Development Unit (ShACRDU), Iran University of Medical Sciences (IUMS), Tehran, Iran
| | - Samaneh Ghasemi
- Shahid Akbar Abadi Hospital Clinical Research Development Unit (ShACRDU), Iran University of Medical Sciences (IUMS), Tehran, Iran
| | - Yousef Moradi
- Department of Epidemiology, School of Public Health, Iran University of Medical Sciences, Tehran, Iran
| | - Seyedeh Tahereh Ghazi Mirsaeed
- Shahid Akbar Abadi Hospital Clinical Research Development Unit (ShACRDU), Iran University of Medical Sciences (IUMS), Tehran, Iran
| |
Collapse
|
4
|
Simi G, Genazzani AR, Obino MER, Papini F, Pinelli S, Cela V, Artini PG. Inositol and In Vitro Fertilization with Embryo Transfer. Int J Endocrinol 2017; 2017:5469409. [PMID: 28348586 PMCID: PMC5350329 DOI: 10.1155/2017/5469409] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/07/2016] [Accepted: 10/13/2016] [Indexed: 11/18/2022] Open
Abstract
Recently, studies on inositol supplementation during in vitro fertilization program (IVF) have gained particular importance due to the effect of this molecule on reducing insulin resistance improving ovarian function, oocyte quality, and embryo and pregnancy rates and reducing gonadotropin amount during stimulation. Inositol and its isoforms, especially myoinositol (MYO), are often used as prestimulation therapy in infertile patients undergoing IVF cycle. Inositol supplementation started three months before ovarian stimulation, resulting in significant improvements in hormonal responses, reducing the amount of FSH necessary for optimal follicle development and serum levels of 17beta-estradiol measured the day of hCG injection. As shown by growing number of trials, MYO supplementation improves oocyte quality by reducing the number of degenerated and immature oocytes, in this way increasing the quality of embryos produced. Inositol can also improve the quality of sperm parameters in those patients affected by oligoasthenoteratozoospermia.
Collapse
Affiliation(s)
- G. Simi
- Division of Obstetrics and Gynecology Oncology, Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - A. R. Genazzani
- Division of Obstetrics and Gynecology Oncology, Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - M. E. R. Obino
- Division of Obstetrics and Gynecology Oncology, Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - F. Papini
- Division of Obstetrics and Gynecology Oncology, Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - S. Pinelli
- Division of Obstetrics and Gynecology Oncology, Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - V. Cela
- Division of Obstetrics and Gynecology Oncology, Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - P. G. Artini
- Division of Obstetrics and Gynecology Oncology, Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
- *P. G. Artini:
| |
Collapse
|
5
|
Gulino FA, Leonardi E, Marilli I, Musmeci G, Vitale SG, Leanza V, Palumbo MA. Effect of treatment with myo-inositol on semen parameters of patients undergoing an IVF cycle: in vivo study. Gynecol Endocrinol 2016; 32:65-8. [PMID: 26361940 DOI: 10.3109/09513590.2015.1080680] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
INTRODUCTION Myo-inositol (MI) is a precursor for the synthesis of phosphatidylinositol polyphosphates (PIPs). The aim of the study is to evaluate the effect of its administration on semen parameters of male patients undergoing an in vitro fertilization cycles. METHODS In vivo study. Samples were semen of 62 patients divided into three different groups: healthy fertile patients (Group A); patients with oligoasthenospermia (OA) (Group B); control group (CTR). The collected samples were analyzed by optic microscopy in order to evaluate semen's volume, spermatozoa's number and motility before and after density-gradient separation method. These parameters were evaluated before and after administration of 4000 mg/die of MI and 400 µg of folic acid for 2 months. The results were analyzed statistically with Student's t-test. RESULTS After treatment there was a significant increase of basal and after density-gradient separation method spermatozoa concentration in Group B, and a significant increase of spermatozoa count after density-gradient separation method in Group A. The motility values were higher in healthy men than patients with OA before treatment, but there was no improvement in both groups after treatment. CONCLUSIONS Exogenous administration of MI significantly improves semen's parameters both in patients with OA and in normal fertile men.
Collapse
Affiliation(s)
- Ferdinando Antonio Gulino
- a Division of Obstetrics and Gynaecology, Department of Surgery , Center of Physiopathology of Human Reproduction, S. Bambino Hospital, University of Catania , Catania , Italy and
| | - Emanuela Leonardi
- a Division of Obstetrics and Gynaecology, Department of Surgery , Center of Physiopathology of Human Reproduction, S. Bambino Hospital, University of Catania , Catania , Italy and
| | - Ilaria Marilli
- a Division of Obstetrics and Gynaecology, Department of Surgery , Center of Physiopathology of Human Reproduction, S. Bambino Hospital, University of Catania , Catania , Italy and
| | - Giulia Musmeci
- b Department of Experimental and Clinical Pharmacology , University of Catania , Catania , Italy
| | - Salvatore Giovanni Vitale
- a Division of Obstetrics and Gynaecology, Department of Surgery , Center of Physiopathology of Human Reproduction, S. Bambino Hospital, University of Catania , Catania , Italy and
| | - Vito Leanza
- a Division of Obstetrics and Gynaecology, Department of Surgery , Center of Physiopathology of Human Reproduction, S. Bambino Hospital, University of Catania , Catania , Italy and
| | - Marco Antonio Palumbo
- a Division of Obstetrics and Gynaecology, Department of Surgery , Center of Physiopathology of Human Reproduction, S. Bambino Hospital, University of Catania , Catania , Italy and
| |
Collapse
|
6
|
Relation entre les caractéristiques du mouvement des spermatozoïdes humains et leur fixation à la zone pellucide. ACTA ACUST UNITED AC 2013; 42:49-55. [DOI: 10.1016/j.jgyn.2012.09.018] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2012] [Revised: 09/11/2012] [Accepted: 09/19/2012] [Indexed: 11/17/2022]
|
7
|
Liu DY, Liu ML, Baker HG. Quinn’s advantage fertilization medium enhances zona pellucida-induced acrosome reaction compared with human tubal fluid medium. Reprod Biomed Online 2011; 23:735-9. [DOI: 10.1016/j.rbmo.2011.07.013] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2011] [Revised: 07/13/2011] [Accepted: 07/14/2011] [Indexed: 11/25/2022]
|
8
|
Contribution of myo-inositol and melatonin to human reproduction. Eur J Obstet Gynecol Reprod Biol 2011; 159:267-72. [DOI: 10.1016/j.ejogrb.2011.07.038] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2011] [Revised: 05/12/2011] [Accepted: 07/11/2011] [Indexed: 02/03/2023]
|
9
|
Hypo-osmotic swelling test identifies individual spermatozoa with minimal DNA fragmentation. Reprod Biomed Online 2010; 21:474-84. [DOI: 10.1016/j.rbmo.2010.06.026] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2009] [Revised: 06/09/2010] [Accepted: 06/10/2010] [Indexed: 11/15/2022]
|
10
|
In vitro fertilization in inbred BALB/c mice I: isotonic osmolarity and increased calcium-enhanced sperm penetration through the zona pellucida and male pronuclear formation. ZYGOTE 2008; 16:249-57. [DOI: 10.1017/s0967199408004607] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
SummaryTo optimize IVF conditions for BALB/c mice, which are known to have poor in vitro fertilizability, the requirements for sperm–ova interaction were studied by use of modified simplex optimization medium (mKSOM) as a basic medium. Modified human tubal fluid (mHTF) was used for sperm preincubation and acted as a positive control. When the two media were compared, neither capacitation nor fertilization was supported in mKSOM. Increasing the calcium concentration in mKSOM to 5 mM or more during sperm: ova coincubation improved zona penetration but not male pronuclear (MPN) formation to the same level as those cells incubated in mHTF. When medium osmolarity was varied from 230–305 mOsmol by NaCl at 5 mM CaCl2, MPN formation improved at 280 mOsmol or higher osmolarity to the same level as that found when using mHTF. When NaCl equivalent to 25–75 mOsmol was substituted with trehalose, no significant reduction in fertilization was observed. Substitution of NaCl equivalent to 75 mOsmol with other osmotic reagents (sucrose, choline chloride and sorbitol) resulted in similar levels of fertilization as found with mHTF, except for sorbitol, which reduced fertilization significantly caused by its detrimental effect on sperm viability. At isotonic osmolarity (305 mOsmol), maximum fertilization was observed at 5 mM CaCl2; lower or higher concentrations of CaCl2 resulted in reduced fertilization. Calcium and osmolarity, therefore, are important for sperm : ova interaction in BALB/c mice and the increases in calcium to 5 mM and osmolarity to 305 mOsmol are optimal for BALB/c sperm to penetrate through the zona and to form MPN.
Collapse
|
11
|
Martínez-Heredia J, de Mateo S, Vidal-Taboada JM, Ballescà JL, Oliva R. Identification of proteomic differences in asthenozoospermic sperm samples. Hum Reprod 2008; 23:783-91. [PMID: 18281682 DOI: 10.1093/humrep/den024] [Citation(s) in RCA: 216] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
BACKGROUND Asthenozoospermia is one of the most common findings present in infertile males, but its aetiology remains unknown in most cases. Present proteomic tools now offer the opportunity to identify proteins which are differentially expressed in asthenozoospermic semen samples and potentially involved in infertility. METHODS We compared the expression of 101 sperm protein spots in 20 asthenozoospermic samples to that of 10 semen donor controls using two-dimensional proteomic analysis. RESULTS Seventeen protein spots have been identified at different amounts in the asthenozoospermic samples compared with controls. These are cytoskeletal actin-B, annexin-A5, cytochrome C oxidase-6B, histone H2A, prolactin-inducible protein and precursor, calcium binding protein-S100A9 (2 spots), clusterin precursor, dihydrolipoamide dehydrogenase precursor, fumarate hydratase precursor, heat shock protein-HSPA2, inositol-1 monophosphatase, 3-mercapto-pyruvate sulfurtransferase/dienoyl-CoA isomerase precursor, proteasome subunit-PSMB3, semenogelin 1 precursor and testis expressed sequence 12. The detected amount of these proteins enabled the grouping of asthenozoospermic sperm samples in an unsupervised clustering analysis. CONCLUSIONS We have identified several proteins present at different amount in asthenozoospermic sperm samples. These proteins could be candidates towards the development of diagnostic markers, and open up the opportunity to gain further insight into the pathogenic mechanisms involved in asthenozoospermia.
Collapse
Affiliation(s)
- Juan Martínez-Heredia
- Human Genetics Research Group, Genetics Unit, Faculty of Medicine, University of Barcelona, Casanova 143, 08036 Barcelona, Spain
| | | | | | | | | |
Collapse
|