1
|
Microtubular TRIM36 E3 Ubiquitin Ligase in Embryonic Development and Spermatogenesis. Cells 2022; 11:cells11020246. [PMID: 35053362 PMCID: PMC8773809 DOI: 10.3390/cells11020246] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2021] [Revised: 01/08/2022] [Accepted: 01/10/2022] [Indexed: 02/05/2023] Open
Abstract
TRIM36 is a member of the tripartite motif (TRIM) family of RING-containing proteins, also known as Haprin, which was first discovered for its abundance in testis and found to be implicated in the spermatozoa acrosome reaction. TRIM36 is a microtubule-associated E3 ubiquitin ligase that plays a role in cytoskeletal organization, and according to data gathered in different species, coordinates growth speed and stability, acting on the microtubules’ plus end, and impacting on cell cycle progression. TRIM36 is also crucial for early developmental processes, in Xenopus, where it is needed for dorso-ventral axis formation, but also in humans as bi-allelic mutations in the TRIM36 gene cause a form of severe neural tube closure defect, called anencephaly. Here, we review TRIM36-related mechanisms implicated in such composite physiological and pathological processes.
Collapse
|
2
|
Campolo F, Capponi C, Tarsitano MG, Tenuta M, Pozza C, Gianfrilli D, Magliocca F, Venneri MA, Vicini E, Lenzi A, Isidori AM, Barbagallo F. cAMP-specific phosphodiesterase 8A and 8B isoforms are differentially expressed in human testis and Leydig cell tumor. Front Endocrinol (Lausanne) 2022; 13:1010924. [PMID: 36277728 PMCID: PMC9585345 DOI: 10.3389/fendo.2022.1010924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Accepted: 09/06/2022] [Indexed: 11/21/2022] Open
Abstract
Cyclic adenosine monophosphate/Protein kinase A (cAMP/PKA) signaling pathway is the master regulator of endocrine tissue function. The level, compartmentalization and amplitude of cAMP response are finely regulated by phosphodiesterases (PDEs). PDE8 is responsible of cAMP hydrolysis and its expression has been characterized in all steroidogenic cell types in rodents including adrenal and Leydig cells in rodents however scarce data are currently available in humans. Here we demonstrate that human Leydig cells express both PDE8A and PDE8B isoforms. Interestingly, we found that the expression of PDE8B but not of PDE8A is increased in transformed Leydig cells (Leydig cell tumors-LCTs) compared to non-tumoral cells. Immunofluorescence analyses further reveals that PDE8A is also highly expressed in specific spermatogenic stages. While the protein is not detected in spermatogonia it accumulates nearby the forming acrosome, in the trans-Golgi apparatus of spermatocytes and spermatids and it follows the fate of this organelle in the later stages translocating to the caudal part of the cell. Taken together our findings suggest that 1) a specific pool(s) of cAMP is/are regulated by PDE8A during spermiogenesis pointing out a possible new role of this PDE8 isoform in key events governing the differentiation and maturation of human sperm and 2) PDE8B can be involved in Leydig cell transformation.
Collapse
Affiliation(s)
- Federica Campolo
- Department of Experimental Medicine, Sapienza University of Rome, Rome, Italy
| | - Chiara Capponi
- Department of Anatomical, Histological, Forensic and Orthopedic Sciences, Sapienza University of Rome, Rome, Italy
| | - Maria Grazia Tarsitano
- Department of Experimental Medicine, Sapienza University of Rome, Rome, Italy
- Department of Medical and Surgical Sciences, University Magna Graecia of Catanzaro, Catanzaro, Italy
| | - Marta Tenuta
- Department of Experimental Medicine, Sapienza University of Rome, Rome, Italy
| | - Carlotta Pozza
- Department of Experimental Medicine, Sapienza University of Rome, Rome, Italy
| | - Daniele Gianfrilli
- Department of Experimental Medicine, Sapienza University of Rome, Rome, Italy
| | - Fabio Magliocca
- Department of Radiological, Oncological and Pathological Sciences, Sapienza University of Rome, Rome, Italy
| | - Mary A. Venneri
- Department of Experimental Medicine, Sapienza University of Rome, Rome, Italy
| | - Elena Vicini
- Department of Anatomical, Histological, Forensic and Orthopedic Sciences, Sapienza University of Rome, Rome, Italy
| | - Andrea Lenzi
- Department of Experimental Medicine, Sapienza University of Rome, Rome, Italy
| | - Andrea M. Isidori
- Department of Experimental Medicine, Sapienza University of Rome, Rome, Italy
| | - Federica Barbagallo
- Department of Experimental Medicine, Sapienza University of Rome, Rome, Italy
- Faculty of Medicine and Surgery, Kore University of Enna, Enna, Italy
- *Correspondence: Federica Barbagallo,
| |
Collapse
|
3
|
Abstract
Sexual reproduction is such a successful way of creating progeny with subtle genetic variations that the vast majority of eukaryotic species use it. In mammals, it involves the formation of highly specialised cells: the sperm in males and the egg in females, each carrying the genetic inheritance of an individual. The interaction of sperm and egg culminates with the fusion of their cell membranes, triggering the molecular events that result in the formation of a new genetically distinct organism. Although we have a good cellular description of fertilisation in mammals, many of the molecules involved remain unknown, and especially the identity and role of cell surface proteins that are responsible for sperm–egg recognition, binding, and fusion. Here, we will highlight and discuss these gaps in our knowledge and how the role of some recently discovered sperm cell surface and secreted proteins contribute to our understanding of this fundamental process. Fertilisation is the challenging process whereby cells from two individuals fuse to generate a new, genetically distinct organism of the same species. This Unsolved Mystery article explores the molecular mechanisms underlying sperm–egg interaction and fusion, a fascinating topic that is under increasing investigation.
Collapse
Affiliation(s)
- Enrica Bianchi
- Cell Surface Signalling Laboratory, Wellcome Sanger Institute, Cambridge, United Kingdom
- * E-mail:
| | - Gavin J. Wright
- Cell Surface Signalling Laboratory, Wellcome Sanger Institute, Cambridge, United Kingdom
- Department of Biology, Hull York Medical School, York Biomedical Research Institute, University of York, Wentworth Way, York, United Kingdom
| |
Collapse
|
4
|
Malmir M, Faraji T, Ghafarizadeh AA, Khodabandelo H. Effect of nonylphenol on spermatogenesis: A systematic review. Andrologia 2020; 52:e13748. [PMID: 32662580 DOI: 10.1111/and.13748] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Revised: 05/20/2020] [Accepted: 06/09/2020] [Indexed: 11/30/2022] Open
Abstract
Nonylphenol (NP) is known as an environmental pollutant that has adverse effects on the spermatogenesis process. In this review, we focus on (1999-2020) studies on the effect of this pollutant on the sperm parameters and the male reproductive system. Spermatogenesis is a process in which male spermatogonia (primary germ cells) is divided into meiosis and produce spermatozoa. NP and its isomers can cause oxidative stress and alter the production of sex hormones, and thereby disrupting this vital process. By searching in the scientific databases of PubMed, Google Scholar, Science Direct, Springer and Web of Science related articles were extracted. As a result, all observations have confirmed that NP can cause multiple damages to the spermatogenesis and male reproductive system.
Collapse
Affiliation(s)
- Mahdi Malmir
- Department of Midwifery, Tuyserkan Branch, Islamic Azad University, Tuyserkan, Iran
| | - Tayebe Faraji
- Department of Midwifery, Tuyserkan Branch, Islamic Azad University, Tuyserkan, Iran
| | | | - Hamideh Khodabandelo
- Department of Midwifery, Tuyserkan Branch, Islamic Azad University, Tuyserkan, Iran
| |
Collapse
|
5
|
Saraswat S, Kharche SD, Rout PK, Pawaiya R, Gangwar C, Swain DK, Kaushik R. Molecular expression and identification of caprine estrogen receptor gene 1 for fertility status in bucks. Reprod Domest Anim 2020; 55:1080-1092. [PMID: 32531861 DOI: 10.1111/rda.13746] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Accepted: 06/05/2020] [Indexed: 12/29/2022]
Abstract
Estrogen and its receptors are essential for sexual development and reproduction. Oestrogen receptor alpha (ERα) is a nuclear receptor activated by the hormone oestrogen. In male, ERα is encoded by the gene ESR1 (oestrogen receptor1) responsible for better fertility. ESR1 is involved in the reabsorption of luminal fluid during the transit of spermatozoa from the testis to the head of the epididymis which is important for their survival and maturation during epididymal storage. The absence of ESR1 leads to reduced epididymal sperm content, reduced sperm motility and fertilizing ability. The present study was undertaken to investigate the expression and presence of ESR1 gene in fertile and low-fertile male goat breeds. We identified ESR1 gene through various molecular tools. Genotyping was carried out by high resonance melting analysis using Roche Light Cycler 480(LC-480) system and found three different genotypes. Genotypic frequency-AA (blue-0.67), BB(Red-0.2), AB(Green-0.08) with allele frequency A(0.71 and B (0.29). The predominance of this gene in head of epididymis in fertile bucks was confirmed by SDS-PAGE, Western blotting and immunohistochemistry. From the results, we corroborated that the present study provides a useful and effective way to predict male fertility in goat breeds, which in turn increases the percentage of fertility in flock leading to more number of offspring in a kidding season.
Collapse
Affiliation(s)
- S Saraswat
- ICAR-Central Institute for Research on Goats, Mathura, Uttar Pradesh, India
| | - S D Kharche
- ICAR-Central Institute for Research on Goats, Mathura, Uttar Pradesh, India
| | - P K Rout
- ICAR-Central Institute for Research on Goats, Mathura, Uttar Pradesh, India
| | - R Pawaiya
- ICAR-Central Institute for Research on Goats, Mathura, Uttar Pradesh, India
| | - C Gangwar
- ICAR-Central Institute for Research on Goats, Mathura, Uttar Pradesh, India
| | - D K Swain
- Department of Physiology, DUVASU, Mathura, Uttar Pradesh, India
| | - R Kaushik
- ICAR-Central Institute for Research on Goats, Mathura, Uttar Pradesh, India
| |
Collapse
|
6
|
Abstract
Synaptotagmin 1 (Syt1) is an abundant and important presynaptic vesicle protein that binds Ca2+ for the regulation of synaptic vesicle exocytosis. Our previous study reported its localization and function on spindle assembly in mouse oocyte meiotic maturation. The present study was designed to investigate the function of Syt1 during mouse oocyte activation and subsequent cortical granule exocytosis (CGE) using confocal microscopy, morpholinol-based knockdown and time-lapse live cell imaging. By employing live cell imaging, we first studied the dynamic process of CGE and calculated the time interval between [Ca2+]i rise and CGE after oocyte activation. We further showed that Syt1 was co-localized to cortical granules (CGs) at the oocyte cortex. After oocyte activation with SrCl2, the Syt1 distribution pattern was altered significantly, similar to the changes seen for the CGs. Knockdown of Syt1 inhibited [Ca2+]i oscillations, disrupted the F-actin distribution pattern and delayed the time of cortical reaction. In summary, as a synaptic vesicle protein and calcium sensor for exocytosis, Syt1 acts as an essential regulator in mouse oocyte activation events including the generation of Ca2+ signals and CGE.
Collapse
|
7
|
Khawar MB, Gao H, Li W. Mechanism of Acrosome Biogenesis in Mammals. Front Cell Dev Biol 2019; 7:195. [PMID: 31620437 PMCID: PMC6759486 DOI: 10.3389/fcell.2019.00195] [Citation(s) in RCA: 76] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2019] [Accepted: 08/29/2019] [Indexed: 11/13/2022] Open
Abstract
During sexual reproduction, two haploid gametes fuse to form the zygote, and the acrosome is essential to this fusion process (fertilization) in animals. The acrosome is a special kind of organelle with a cap-like structure that covers the anterior portion of the head of the spermatozoon. The acrosome is derived from the Golgi apparatus and contains digestive enzymes. With the progress of our understanding of acrosome biogenesis, a number of models have been proposed to address the origin of the acrosome. The acrosome has been regarded as a lysosome-related organelle, and it has been proposed to have originated from the lysosome or the autolysosome. Our review will provide a brief historical overview and highlight recent findings on acrosome biogenesis in mammals.
Collapse
Affiliation(s)
- Muhammad Babar Khawar
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Hui Gao
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
| | - Wei Li
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
- University of Chinese Academy of Sciences, Beijing, China
| |
Collapse
|
8
|
Hou Z, Fu Q, Huang Y, Zhang P, Chen F, Li M, Xu Z, Yao S, Chen D, Zhang M. WITHDRAWN: Comparative proteomic identification of capacitation and noncapacitation swamp buffalo spermatozoa. Theriogenology 2019; 128:176-183. [DOI: 10.1016/j.theriogenology.2019.02.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2018] [Accepted: 02/01/2019] [Indexed: 01/17/2023]
|
9
|
Hou Z, Fu Q, Huang Y, Zhang P, Chen F, Li M, Xu Z, Yao S, Chen D, Zhang M. Comparative proteomic identification buffalo spermatozoa during in vitro capacitation. Theriogenology 2018; 126:303-309. [PMID: 30599421 DOI: 10.1016/j.theriogenology.2018.12.025] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Accepted: 12/13/2018] [Indexed: 10/27/2022]
Abstract
To investigate the proteomic profiling in buffalo spermatozoa before and after capacitation, a liquid chromatography-tandem mass spectrometry (LC-MS/MS) combined with Tandem Mass Tag (TMT) labeling strategy was applied. As a result, 1461 proteins were identified, 93 of them were found to be differentially expressed (>1.5-fold), including 52 up-regulated proteins and 41 down-regulated proteins during sperm capacitation. 88 out of 93 proteins were annotated and classified. Gene ontology (GO) analysis revealed that most of the differently expressed proteins (DEPs) were involved in the Biological Process of transport, cytoskeleton organization, sexual reproduction, and spermatogenesis. Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis indicated that DEPs were mainly involved in the pathways of metabolic pathways, PPAR signaling pathway, and oxidative phosphorylation. Western blot (WB) assay confirmed the expressional variation of VAMP4 and APOC3 proteins. Our date provided a foundation for studying the changes in protein expression during sperm capacitation, which contributing to identifying marker proteins that may be associated with sperm capacitation.
Collapse
Affiliation(s)
- Zhen Hou
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi University, Nanning, 530004, Guangxi, PR China
| | - Qiang Fu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi University, Nanning, 530004, Guangxi, PR China
| | - Yulin Huang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi University, Nanning, 530004, Guangxi, PR China
| | - Pengfei Zhang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi University, Nanning, 530004, Guangxi, PR China
| | - Fumei Chen
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi University, Nanning, 530004, Guangxi, PR China
| | - Mingxing Li
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi University, Nanning, 530004, Guangxi, PR China
| | - Zhuangzhuang Xu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi University, Nanning, 530004, Guangxi, PR China
| | - Shun Yao
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi University, Nanning, 530004, Guangxi, PR China
| | - Dongrong Chen
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi University, Nanning, 530004, Guangxi, PR China
| | - Ming Zhang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi University, Nanning, 530004, Guangxi, PR China.
| |
Collapse
|
10
|
Brohi RD, Wang L, Hassine NB, Cao J, Talpur HS, Wu D, Huang CJ, Rehman ZU, Bhattarai D, Huo LJ. Expression, Localization of SUMO-1, and Analyses of Potential SUMOylated Proteins in Bubalus bubalis Spermatozoa. Front Physiol 2017; 8:354. [PMID: 28659810 PMCID: PMC5468435 DOI: 10.3389/fphys.2017.00354] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2017] [Accepted: 05/15/2017] [Indexed: 11/19/2022] Open
Abstract
Mature spermatozoa have highly condensed DNA that is essentially silent both transcriptionally and translationally. Therefore, post translational modifications are very important for regulating sperm motility, morphology, and for male fertility in general. Protein sumoylation was recently demonstrated in human and rodent spermatozoa, with potential consequences for sperm motility and DNA integrity. We examined the expression and localization of small ubiquitin-related modifier-1 (SUMO-1) in the sperm of water buffalo (Bubalus bubalis) using immunofluorescence analysis. We confirmed the expression of SUMO-1 in the acrosome. We further found that SUMO-1 was lost if the acrosome reaction was induced by calcium ionophore A23187. Proteins modified or conjugated by SUMO-1 in water buffalo sperm were pulled down and analyzed by mass spectrometry. Sixty proteins were identified, including proteins important for sperm morphology and motility, such as relaxin receptors and cytoskeletal proteins, including tubulin chains, actins, and dyneins. Forty-six proteins were predicted as potential sumoylation targets. The expression of SUMO-1 in the acrosome region of water buffalo sperm and the identification of potentially SUMOylated proteins important for sperm function implicates sumoylation as a crucial PTM related to sperm function.
Collapse
Affiliation(s)
- Rahim Dad Brohi
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Education Ministry of China, College of Animal Science and Technology, Huazhong Agricultural UniversityWuhan, China.,Department of Hubei Province's Engineering Research Center in Buffalo Breeding and ProductsWuhan, China
| | - Li Wang
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Education Ministry of China, College of Animal Science and Technology, Huazhong Agricultural UniversityWuhan, China.,Department of Hubei Province's Engineering Research Center in Buffalo Breeding and ProductsWuhan, China
| | | | - Jing Cao
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Education Ministry of China, College of Animal Science and Technology, Huazhong Agricultural UniversityWuhan, China.,Department of Hubei Province's Engineering Research Center in Buffalo Breeding and ProductsWuhan, China
| | - Hira Sajjad Talpur
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Education Ministry of China, College of Animal Science and Technology, Huazhong Agricultural UniversityWuhan, China.,Department of Hubei Province's Engineering Research Center in Buffalo Breeding and ProductsWuhan, China
| | - Di Wu
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Education Ministry of China, College of Animal Science and Technology, Huazhong Agricultural UniversityWuhan, China.,Department of Hubei Province's Engineering Research Center in Buffalo Breeding and ProductsWuhan, China
| | - Chun-Jie Huang
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Education Ministry of China, College of Animal Science and Technology, Huazhong Agricultural UniversityWuhan, China.,Department of Hubei Province's Engineering Research Center in Buffalo Breeding and ProductsWuhan, China
| | - Zia-Ur Rehman
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Education Ministry of China, College of Animal Science and Technology, Huazhong Agricultural UniversityWuhan, China.,Department of Hubei Province's Engineering Research Center in Buffalo Breeding and ProductsWuhan, China
| | - Dinesh Bhattarai
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Education Ministry of China, College of Animal Science and Technology, Huazhong Agricultural UniversityWuhan, China.,Department of Hubei Province's Engineering Research Center in Buffalo Breeding and ProductsWuhan, China
| | - Li-Jun Huo
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Education Ministry of China, College of Animal Science and Technology, Huazhong Agricultural UniversityWuhan, China.,Department of Hubei Province's Engineering Research Center in Buffalo Breeding and ProductsWuhan, China
| |
Collapse
|
11
|
Trexler AJ, Taraska JW. Two-Color Total Internal Reflection Fluorescence Microscopy of Exocytosis in Endocrine Cells. Methods Mol Biol 2017; 1563:151-165. [PMID: 28324608 DOI: 10.1007/978-1-4939-6810-7_11] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
We describe a comprehensive method for imaging and analysis of local protein dynamics at single sites of exocytosis in living cultured endocrine cells. This method is well suited to quantitatively map the complex dynamics of individual molecules at single sites of vesicle fusion in live cells.
Collapse
Affiliation(s)
- Adam J Trexler
- Laboratory of Molecular Biophysics, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Justin W Taraska
- Laboratory of Molecular Biophysics, National Heart, Lung, and Blood Institute, National Institutes of Health, Building 50, Room 3312, 50 South Drive, Bethesda, MD, 20892, USA.
| |
Collapse
|
12
|
Han Y, Peñagaricano F. Unravelling the genomic architecture of bull fertility in Holstein cattle. BMC Genet 2016; 17:143. [PMID: 27842509 PMCID: PMC5109745 DOI: 10.1186/s12863-016-0454-6] [Citation(s) in RCA: 75] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2016] [Accepted: 11/04/2016] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Fertility is considered an important economic trait in dairy cattle. Most studies have investigated cow fertility while bull fertility has received much less consideration. The main objective of this study was to perform a comprehensive genomic analysis in order to unravel the genomic architecture underlying sire fertility in Holstein dairy cattle. The analysis included the application of alternative genome-wide association mapping approaches and the subsequent use of diverse gene set enrichment tools. RESULTS The association analyses identified at least eight genomic regions strongly associated with bull fertility. Most of these regions harbor genes, such as KAT8, CKB, TDRD9 and IGF1R, with functions related to sperm biology, including sperm development, motility and sperm-egg interaction. Moreover, the gene set analyses revealed many significant functional terms, including fertilization, sperm motility, calcium channel regulation, and SNARE proteins. Most of these terms are directly implicated in sperm physiology and male fertility. CONCLUSIONS This study contributes to the identification of genetic variants and biological processes underlying sire fertility. These findings can provide opportunities for improving bull fertility via marker-assisted selection.
Collapse
Affiliation(s)
- Yi Han
- Department of Animal Sciences, University of Florida, 2250 Shealy Drive, Gainesville, FL, 32611, USA.,University of Florida Genetics Institute, University of Florida, Gainesville, FL, 32610, USA
| | - Francisco Peñagaricano
- Department of Animal Sciences, University of Florida, 2250 Shealy Drive, Gainesville, FL, 32611, USA. .,University of Florida Genetics Institute, University of Florida, Gainesville, FL, 32610, USA.
| |
Collapse
|
13
|
Berruti G. Towards defining an ‘origin’—The case for the mammalian acrosome. Semin Cell Dev Biol 2016; 59:46-53. [DOI: 10.1016/j.semcdb.2016.01.013] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2015] [Revised: 01/07/2016] [Accepted: 01/08/2016] [Indexed: 01/19/2023]
|
14
|
Adibnia E, Razi M, Malekinejad H. Zearalenone and 17 β-estradiol induced damages in male rats reproduction potential; evidence for ERα and ERβ receptors expression and steroidogenesis. Toxicon 2016; 120:133-46. [PMID: 27527272 DOI: 10.1016/j.toxicon.2016.08.009] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2016] [Revised: 08/09/2016] [Accepted: 08/11/2016] [Indexed: 12/29/2022]
Abstract
The estrogen receptors (ERs)-dependent effects of Zearalenone (ZEA) on structure and function of the testis as well as sperm parameters were compared with 17-β estradiol as endogenous substance. For this purpose, 30 mature male rats were assigned into five groups as; control (appropriate volume of normal saline, i. p.), ZEA-received (1, 2 and 4 mg/kg, b. w., i. p.) and 17 β-estradiol (E2)-received (appropriate dose of 0.1 mg/kg, i. p.). Following 28 days, the mRNA levels of estrogen receptor alpha (ERα) and estrogen receptor beta (ERβ) in the testis and sperms and the expression of them at protein levels in testicles were estimated. Mitochondrial content of germinal epithelium, Leydig cells steroid foci, sperm quality parameters and serum level of testosterone were assessed. Fluorescent techniques were used for analyzing apoptosis and mRNA damage in necrotic cells. ZEA reduced the mRNA and protein levels of ERα in testicles while up-regulated the ERβ expression. The mRNA level of ERα decreased in sperms of ZEA and E2-received animals. No remarkable changes were found for ERβ expression in sperms from ZEA and E2-received animals. ZEA reduced the Leydig cells steroidogenesis, mitochondrial content of germinal cells and elevated cellular apoptosis and necrosis dose-dependently. E2 reduced the testosterone concentration, enhanced the apoptosis and reduced sperm quality. Our data suggest that ZEA-induced detrimental effects in the structure and function of testis, may attribute to changing the ERs expression at mRNA and translational level.
Collapse
Affiliation(s)
- Elmira Adibnia
- Department of Comparative Histology & Embryology, Faculty of Veterinary Medicine, P.O. Box: 1177, Urmia University, Urmia, Iran
| | - Mazdak Razi
- Department of Comparative Histology & Embryology, Faculty of Veterinary Medicine, P.O. Box: 1177, Urmia University, Urmia, Iran.
| | - Hassan Malekinejad
- Department of Pharmacology & Toxicology, Faculty of Pharmacy, Urmia University of Medical Sciences, Urmia, Iran; Department of Pharmacology & Toxicology, Faculty of Veterinary Medicine, P.O. Box: 1177, Urmia University, Urmia, Iran
| |
Collapse
|
15
|
Elkis Y, Bel S, Rahimi R, Lerer-Goldstein T, Levin-Zaidman S, Babushkin T, Shpungin S, Nir U. TMF/ARA160 Governs the Dynamic Spatial Orientation of the Golgi Apparatus during Sperm Development. PLoS One 2015; 10:e0145277. [PMID: 26701263 PMCID: PMC4689540 DOI: 10.1371/journal.pone.0145277] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2015] [Accepted: 12/02/2015] [Indexed: 12/20/2022] Open
Abstract
TMF/ARA160 is known to be a TATA element Modulatory Factor (TMF). It was initially identified as a DNA-binding factor and a coactivator of the Androgen receptor. It was also characterized as a Golgi-associated protein, which is essential for acrosome formation during functional sperm development. However, the molecular roles of TMF in this intricate process have not been revealed. Here, we show that during spermiogenesis, TMF undergoes a dynamic change of localization throughout the Golgi apparatus. Specifically, TMF translocates from the cis-Golgi to the trans-Golgi network and to the emerging vesicles surface, as the round spermatids develop. Notably, lack of TMF led to an abnormal spatial orientation of the Golgi and to the deviation of the trans-Golgi surface away from the nucleus of the developing round spermatids. Concomitantly, pro-acrosomal vesicles derived from the TMF-/- Golgi lacked targeting properties and did not tether to the spermatid nuclear membrane thereby failing to form the acrosome anchoring scaffold, the acroplaxome, around the cell-nucleus. Absence of TMF also perturbed the positioning of microtubules, which normally lie in proximity to the Golgi and are important for maintaining Golgi spatial orientation and dynamics and for chromatoid body formation, which is impaired in TMF-/- spermatids. In-silico evaluation combined with molecular and electron microscopic analyses revealed the presence of a microtubule interacting domain (MIT) in TMF, and confirmed the association of TMF with microtubules in spermatogenic cells. Furthermore, the MIT domain in TMF, along with microtubules integrity, are required for stable association of TMF with the Golgi apparatus. Collectively, we show here for the first time that a Golgi and microtubules associated protein is crucial for maintaining proper Golgi orientation during a cell developmental process.
Collapse
Affiliation(s)
- Yoav Elkis
- The Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Ramat-Gan, 52900, Israel
| | - Shai Bel
- The Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Ramat-Gan, 52900, Israel
| | - Roni Rahimi
- The Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Ramat-Gan, 52900, Israel
| | - Tali Lerer-Goldstein
- The Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Ramat-Gan, 52900, Israel
| | - Smadar Levin-Zaidman
- Electron Microscopy Unit, Weizmann Institute of Science, Rehovot, 7610001, Israel
| | - Tatiana Babushkin
- The Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Ramat-Gan, 52900, Israel
| | - Sally Shpungin
- The Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Ramat-Gan, 52900, Israel
| | - Uri Nir
- The Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Ramat-Gan, 52900, Israel
| |
Collapse
|
16
|
Torres-Fuentes JL, Rios M, Moreno RD. Involvement of a P2X7 Receptor in the Acrosome Reaction Induced by ATP in Rat Spermatozoa. J Cell Physiol 2015; 230:3068-75. [PMID: 25989529 DOI: 10.1002/jcp.25044] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2014] [Accepted: 05/11/2015] [Indexed: 02/06/2023]
Abstract
The acrosome reaction (AR) is the exocytosis of the acrosomal vesicle in response to different physiological and non-physiological stimuli. Particularly in mammals, the AR is needed for sperm to fuse with the oocyte plasma membrane, and it occurs only in capacitated sperm. Previous evidence in the literature indicates that extracellular ATP induces the AR in capacitated human and bovine spermatozoa, but its receptor has not yet been identified. The aim of this work was to define a putative ATP receptor in rat spermatozoa using pharmacological and biochemical approaches. We found that ATP induced the AR only in capacitated rat spermatozoa, which was inhibited in the presence of two general inhibitors of ATP receptors (P2 receptors), Suramin, and oxidized ATP (oATP), and one inhibitor of P2X receptor (pyridoxalphosphate-6-azophenyl-2',4'-disulfonic acid [PPADS]). In addition, the AR induced by ATP in capacitated rat spermatozoa was inhibited by brilliant blue-G (BB-G) and 17-β-oestradiol, two blockers of P2X7 receptors. Moreover, the ATP analog 2'(3')-O-(4-benzoylbenzoyl) ATP (BzATP) was almost 500 times more potent than ATP to induce the AR, which agrees with the pharmacology of a P2X7 receptor. Here, we show the presence of P2X7 receptor by Western blot and its localization in the tail and acrosome by indirect immunofluorescence. Finally, we quantify the presence of ATP in the rat oviduct during the estrous cycle. We found that the ATP concentration within the lumen of the oviduct is similar to those required to induce acrosome reaction, which agree with its role during in vivo fertilization. Therefore, our results strongly suggest that ATP induces the AR in capacitated rat spermatozoa through a P2X7 receptor, which may be functional during in vivo fertilization.
Collapse
Affiliation(s)
- Jorge L Torres-Fuentes
- Departamento de Fisiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Mariana Rios
- Departamento de Fisiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Ricardo D Moreno
- Departamento de Fisiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| |
Collapse
|
17
|
Huang X, Liu B, Huan P. The sperm proteome of the Pacific oysterCrassostrea gigasand immunolocalization of heat shock proteins. INVERTEBR REPROD DEV 2015. [DOI: 10.1080/07924259.2015.1041654] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
18
|
Da Ros M, Hirvonen N, Olotu O, Toppari J, Kotaja N. Retromer vesicles interact with RNA granules in haploid male germ cells. Mol Cell Endocrinol 2015; 401:73-83. [PMID: 25486514 DOI: 10.1016/j.mce.2014.11.026] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/10/2014] [Revised: 11/21/2014] [Accepted: 11/28/2014] [Indexed: 10/24/2022]
Abstract
Spermatozoa are produced during spermatogenesis as a result of mitotic proliferation, meiosis and cellular differentiation. Postmeiotic spermatids are exceptional cells given their haploid genome and remarkable sperm-specific structural transformations to compact and reshape the nucleus and to construct the flagellum and acrosome. These processes require delicate coordination and active communication between distinct cellular compartments. In this study, we elucidated the interplay between the haploid RNA regulation and the vesicular transport system. We identified a novel interaction between VPS26A/VPS35-containing retromer vesicles and the chromatoid body (CB), which is a large ribonucleoprotein (RNP) granule unique to haploid male germ cells. VPS26A/VPS35-positive vesicles were shown to be involved in the endosomal pathway, as well as in acrosomal formation that is dependent on the Golgi complex-derived vesicular trafficking. While the exact role of the retromer vesicles in the CB function remains unclear, our results suggest a direct functional link between vesicle transport and CB-mediated RNA regulation.
Collapse
Affiliation(s)
- Matteo Da Ros
- Institute of Biomedicine, Department of Physiology, University of Turku, Turku FIN-20520, Finland
| | - Noora Hirvonen
- Institute of Biomedicine, Department of Physiology, University of Turku, Turku FIN-20520, Finland
| | - Opeyemi Olotu
- Institute of Biomedicine, Department of Physiology, University of Turku, Turku FIN-20520, Finland
| | - Jorma Toppari
- Institute of Biomedicine, Department of Physiology, University of Turku, Turku FIN-20520, Finland; Department of Pediatrics, University of Turku, Turku FIN-20520, Finland
| | - Noora Kotaja
- Institute of Biomedicine, Department of Physiology, University of Turku, Turku FIN-20520, Finland.
| |
Collapse
|
19
|
Morphological alterations of all stages of spermatogenesis and acrosome reaction in Chinese mitten crab Eriocheir sinensis. Cell Tissue Res 2015; 360:401-12. [DOI: 10.1007/s00441-014-2092-5] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2014] [Accepted: 12/09/2014] [Indexed: 11/26/2022]
|
20
|
Busso D, Oñate-Alvarado MJ, Balboa E, Castro J, Lizama C, Morales G, Vargas S, Härtel S, Moreno RD, Zanlungo S. Spermatozoa from mice deficient in Niemann-Pick disease type C2 (NPC2) protein have defective cholesterol content and reduced in vitro fertilising ability. Reprod Fertil Dev 2014; 26:609-21. [PMID: 24709320 DOI: 10.1071/rd12059] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2012] [Accepted: 04/03/2013] [Indexed: 12/16/2022] Open
Abstract
The cholesterol content of the sperm membrane is regulated during both maturation in the epididymis and capacitation in the female tract, two processes required for the spermatozoa to acquire their fertilising ability. Because Niemann-Pick disease, type C2 (NPC2) protein is one of the most abundant components of the epididymal fluid and contains a functional cholesterol-binding site that can transfer cholesterol between membranes, it has been suggested for years that NPC2 could be involved in the regulation of cholesterol levels in spermatozoa during epididymal maturation. In the present study, western blot and immunohistochemistry analyses demonstrated significant levels of NPC2 in the mouse epididymal epithelium. Epididymal spermatozoa obtained from NPC2(-/-) mice were morphologically normal and had normal motility parameters, but had a reduced cholesterol content compared with that of wild-type (WT) spermatozoa, as determined by both biochemical and by flow cytometry analyses. These results suggest that NPC2 could be involved in regulating cholesterol levels in spermatozoa during epididymal maturation. To understand the relevance of epididymal NPC2 for sperm function, the ability of spermatozoa to undergo events influenced by epididymal maturation, such as capacitation and fertilisation, were compared between WT and NPC2(-/-) mice. Capacitated NPC2(-/-) spermatozoa exhibited defective tyrosine phosphorylation patterns and a reduced ability to fertilise cumulus-oocyte complexes compared with WT spermatozoa, supporting the relevance of mouse epididymal NPC2 for male fertility.
Collapse
Affiliation(s)
- Dolores Busso
- Department of Gastroenterology, Faculty of Medicine, Pontificia Universidad Católica. Avda. Bernardo O'Higgins 340. 8331150 Santiago, Chile
| | - María José Oñate-Alvarado
- Department of Physiology, Faculty of Biological Sciences, Pontificia Universidad Católica. Avda. Bernardo O'Higgins 340. 8331150 Santiago, Chile
| | - Elisa Balboa
- Department of Gastroenterology, Faculty of Medicine, Pontificia Universidad Católica. Avda. Bernardo O'Higgins 340. 8331150 Santiago, Chile
| | - Juan Castro
- Department of Gastroenterology, Faculty of Medicine, Pontificia Universidad Católica. Avda. Bernardo O'Higgins 340. 8331150 Santiago, Chile
| | - Carlos Lizama
- Department of Physiology, Faculty of Biological Sciences, Pontificia Universidad Católica. Avda. Bernardo O'Higgins 340. 8331150 Santiago, Chile
| | - Gabriela Morales
- Department of Gastroenterology, Faculty of Medicine, Pontificia Universidad Católica. Avda. Bernardo O'Higgins 340. 8331150 Santiago, Chile
| | - Susana Vargas
- Laboratory for Scientific Image Analysis (SCIAN-Lab), Program of Anatomy and Developmental Biology, Instituto de Ciencias Biomédicas ICBM, Faculty of Medicine, Universidad de Chile, Avda. Independencia 1027. 8389100 Santiago, Chile
| | - Steffen Härtel
- Laboratory for Scientific Image Analysis (SCIAN-Lab), Program of Anatomy and Developmental Biology, Instituto de Ciencias Biomédicas ICBM, Faculty of Medicine, Universidad de Chile, Avda. Independencia 1027. 8389100 Santiago, Chile
| | - Ricardo D Moreno
- Department of Physiology, Faculty of Biological Sciences, Pontificia Universidad Católica. Avda. Bernardo O'Higgins 340. 8331150 Santiago, Chile
| | - Silvana Zanlungo
- Department of Gastroenterology, Faculty of Medicine, Pontificia Universidad Católica. Avda. Bernardo O'Higgins 340. 8331150 Santiago, Chile
| |
Collapse
|
21
|
Molecular chaperones, cochaperones, and ubiquitination/deubiquitination system: involvement in the production of high quality spermatozoa. BIOMED RESEARCH INTERNATIONAL 2014; 2014:561426. [PMID: 25045686 PMCID: PMC4089148 DOI: 10.1155/2014/561426] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/27/2014] [Accepted: 06/04/2014] [Indexed: 01/16/2023]
Abstract
Spermatogenesis is a complex process in which mitosis, meiosis, and cell differentiation events coexist. The need to guarantee the production of qualitatively functional spermatozoa has evolved into several control systems that check spermatogenesis progression/sperm maturation and tag aberrant gametes for degradation. In this review, we will focus on the importance of the evolutionarily conserved molecular pathways involving molecular chaperones belonging to the superfamily of heat shock proteins (HSPs), their cochaperones, and ubiquitination/deubiquitination system all over the spermatogenetic process. In this respect, we will discuss the conserved role played by the DNAJ protein Msj-1 (mouse sperm cell-specific DNAJ first homologue) and the deubiquitinating enzyme Ubpy (ubiquitin-specific processing protease-y) during the spermiogenesis in both mammals and nonmammalian vertebrates.
Collapse
|
22
|
Functional Analysis of KIF3A and KIF3B during Spermiogenesis of Chinese Mitten Crab Eriocheir sinensis. PLoS One 2014; 9:e97645. [PMID: 24870586 PMCID: PMC4037190 DOI: 10.1371/journal.pone.0097645] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2014] [Accepted: 04/22/2014] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Spermatogenesis represents the transformation process at the level of cellular development. KIF3A and KIF3B are believed to play some roles in the assembly and maintenance of flagella, intracellular transport of materials including organelles and proteins, and other unknown functions during this process. During spermatogenesis in Eriocheir sinensis, if the sperm shaping machinery is dependent on KIF3A and KIF3B remains unknown. METHODOLOGY/PRINCIPAL FINDINGS The cDNA of KIF3A and KIF3B were obtained by designing degenerate primers, 3'RACE, and 5'RACE. We detected the genetic presence of kif3a and kif3b in the heart, muscle, liver, gill, and testis of E. sinensis through RT-PCR. By western blot analysis, the protein presence of KIF3A and KIF3B in heart, muscle, gill, and testis reflected the content in protein level. Using in situ hybridization and immunofluorescence, we could track the dynamic location of KIF3A and KIF3B during different developmental phases of sperm. KIF3A and KIF3B were found surrounding the nucleus in early spermatids. In intermediate spermatids, these proteins expressed at high levels around the nucleus and extended to the final phase. During the nuclear shaping period, KIF3A and KIF3B reached their maximum in the late spermatids and were located around the nucleus and concentrated in the acrosome to some extent. CONCLUSIONS/SIGNIFICANCE Our results revealed that KIF3A and KIF3B were involved in the nuclear and cellular morphogenesis at the levels of mRNA and protein. These proteins can potentially facilitate the intracellular transport of organelles, proteins, and other cargoes. The results represent the functions of KIF3A and KIF3B in the spermatogenesis of Crustacea and clarify phylogenetic relationships among the Decapoda.
Collapse
|
23
|
Amaral A, Castillo J, Ramalho-Santos J, Oliva R. The combined human sperm proteome: cellular pathways and implications for basic and clinical science. Hum Reprod Update 2013; 20:40-62. [DOI: 10.1093/humupd/dmt046] [Citation(s) in RCA: 184] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
|
24
|
Baptista M, Publicover SJ, Ramalho-Santos J. In vitro effects of cationic compounds on functional human sperm parameters. Fertil Steril 2013; 99:705-12. [DOI: 10.1016/j.fertnstert.2012.11.008] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2012] [Revised: 10/25/2012] [Accepted: 11/02/2012] [Indexed: 12/09/2022]
|
25
|
Easley CA, Phillips BT, McGuire MM, Barringer JM, Valli H, Hermann BP, Simerly CR, Rajkovic A, Miki T, Orwig KE, Schatten GP. Direct differentiation of human pluripotent stem cells into haploid spermatogenic cells. Cell Rep 2012; 2:440-6. [PMID: 22921399 DOI: 10.1016/j.celrep.2012.07.015] [Citation(s) in RCA: 170] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2012] [Revised: 06/12/2012] [Accepted: 07/31/2012] [Indexed: 12/25/2022] Open
Abstract
Human embryonic stem cells (hESCs) and induced pluripotent stem cells (hiPSCs) have been shown to differentiate into primordial germ cells (PGCs) but not into spermatogonia, haploid spermatocytes, or spermatids. Here, we show that hESCs and hiPSCs differentiate directly into advanced male germ cell lineages, including postmeiotic, spermatid-like cells, in vitro without genetic manipulation. Furthermore, our procedure mirrors spermatogenesis in vivo by differentiating PSCs into UTF1-, PLZF-, and CDH1-positive spermatogonia-like cells; HIWI- and HILI-positive spermatocyte-like cells; and haploid cells expressing acrosin, transition protein 1, and protamine 1 (proteins that are uniquely found in spermatids and/or sperm). These spermatids show uniparental genomic imprints similar to those of human sperm on two loci: H19 and IGF2. These results demonstrate that male PSCs have the ability to differentiate directly into advanced germ cell lineages and may represent a novel strategy for studying spermatogenesis in vitro.
Collapse
Affiliation(s)
- Charles A Easley
- Department of Obstetrics, Gynecology, and Reproductive Sciences, University of Pittsburgh School of Medicine, Pittsburgh, PA 15108, USA
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
26
|
Wu Y, Chen X, Wang S, Jiang M, Zheng B, Zhou Q, Bi Y, Zhou Z, Huang X, Sha J. Flotillin-2 is an acrosome-related protein involved in mouse spermiogenesis. J Biomed Res 2012; 26:278-87. [PMID: 23554761 PMCID: PMC3596745 DOI: 10.7555/jbr.26.20120030] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2012] [Revised: 04/27/2012] [Accepted: 05/03/2012] [Indexed: 11/28/2022] Open
Abstract
Spermatogenesis is a complex process of terminal differentiation by which mature sperms are generated, and it can be divided into three phases: mitosis, meiosis and spermiogenesis. In a previous study, we established a series of proteomic profiles for spermatogenesis to understand the regulation of male fertility and infertility. Here, we further investigated the localization and the role of flotillin-2 in spermiogenesis. Flotillin-2 expression was investigated in the testis of male CD1 mice at various developmental stages of spermatogenesis by using Western blotting, immunohistochemistry and immunofluorescence. Flotillin-2 was knocked down in vivo in three-week-old male mice using intratesticular injection of small inhibitory RNA (siRNA), and sperm abnormalities were assessed three weeks later. Flotillin-2 was expressed at high levels in male germ cells during spermatogenesis. Flotillin-2 immunoreactivity was observed in pachytene spermatocytes as a strong dot-shaped signal and in round spermatids as a sickle-shaped distribution ahead of the acrosome. Immunofluorescence confirmed flotillin-2 was localized in front of the acrosome in round spermatids, indicating that flotillin-2 was localized to the Golgi apparatus. Knockdown of flotillin-2in vivo led to a significant increase in head sperm abnormalities isolated from the cauda epididymis, compared with control siRNA-injected testes. This study indicates that flotillin-2 is a novel Golgi-related protein involved in sperm acrosome biogenesis.
Collapse
Affiliation(s)
- Yibo Wu
- State Key Laboratory of Reproductive Medicine, Department of Histology and Embryology, Nanjing Medical University, Nanjing, Jiangsu 210029, China
| | | | | | | | | | | | | | | | | | | |
Collapse
|
27
|
Tran MH, Aul RB, Xu W, van der Hoorn FA, Oko R. Involvement of classical bipartite/karyopherin nuclear import pathway components in acrosomal trafficking and assembly during bovine and murid spermiogenesis. Biol Reprod 2012; 86:84. [PMID: 22156475 DOI: 10.1095/biolreprod.111.096842] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
This study arose from our finding that SubH2Bv, a histone H2B variant residing in the subacrosomal compartment of mammalian spermatozoa, contains a bipartite nuclear localization signal (bNLS) but in spite of this did not enter the spermatid nucleus. Instead, it associated with proacrosomic and acrosomic vesicles, which were targeted to the nuclear surface to form the acrosome. On this basis we proposed that SubH2Bv targets proacrosomic/acrosomic vesicles from the Golgi apparatus to the nuclear envelope by utilizing the classical bipartite/karyopherin alpha (KPNA) nuclear import pathway. To test the protein's nuclear targeting ability, SubH2Bv, with and without targeted mutations of the basic residues of bNLS, as well as bNLS alone, were transfected into mammalian cells as GFP-fusion proteins. Only the intact bNLS conferred nuclear entry. Subsequently, we showed that a KPNA, most likely KPNA6, occupies the same sperm head compartment and follows the same pattern of acrosomal association during spermiogenesis as SubH2Bv. Sperm head fractionation combined with Western blotting located this KPNA to the subacrosomal layer of the perinuclear theca, while immunocytochemistry of testicular sections showed that it associates with the surface of proacrosomic/acrosomic vesicles during acrosomal biogenesis. The identical sperm-localization and testicular-expression patterns between KPNA and SubH2Bv suggested a potential binding interaction between these proteins. This was supported by recombinant SubH2Bv affinity pull-down assays on germ cell extracts. The results of this study provide a compelling argument that these two nuclear homing proteins work in concert to direct the acrosomic vesicle to the nucleus. Their final residence in the subacrosomal layer of the perinuclear theca of spermatozoa indicates a role for SubH2Bv and KPNA in acrosomal-nuclear docking.
Collapse
Affiliation(s)
- Mong Hoa Tran
- Department of Biomedical and Molecular Sciences, Queen's University, Kingston, Ontario, Canada
| | | | | | | | | |
Collapse
|
28
|
Gunawan A, Cinar MU, Uddin MJ, Kaewmala K, Tesfaye D, Phatsara C, Tholen E, Looft C, Schellander K. Investigation on association and expression of ESR2 as a candidate gene for boar sperm quality and fertility. Reprod Domest Anim 2011; 47:782-90. [PMID: 22212297 DOI: 10.1111/j.1439-0531.2011.01968.x] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
ESR2 is involved in oestrogen-related apoptosis in cell cycle spermatogenesis but their effects have not yet confirmed in pig. Therefore, this study was aimed to investigate the association of ESR2 polymorphism with sperm quality and boar fertility traits and to analyse the ESR2 mRNA and protein expressions in boar reproductive tissues. DNA samples from 203 Pietrain (PI) and 100 Pietrain × Hampshire (PIHA) pigs with records of sperm quality [sperm concentration (SCON), motility (MOT), semen volume (VOL), plasma droplet rate (PDR) and abnormal spermatozoa rate (ASR)] and fertility [non-return rate (NRR) and number of piglet born alive (NBA)] traits were available. A SNP in coding region of ESR2 g.35547A>G in exon 5 was associated with MOT and PDR in the PI and with SCON, VOL, MOT and PDR in PIHA population. For mRNA and protein expression study, a total of six boars were divided into two groups with group I (G-I) and group II (G-II) where G-I characterized for relatively a better sperm quality according to the mean of two groups. mRNA expression was higher in brain and testis than that in all parts of epididymis. Both qRT-PCR and western blot analysis revealed that the ESR2 gene expression and protein expression were significantly higher in testis collected from G-II compared with that of G-I boars. Moreover, ESR2 protein localization in germ cell, Leydig and Sertoli cells, epithelial cells and spermatozoa was remarkable, which indicated the important role of ESR2 in spermatogenesis process. These results might shed new light on the roles of ESR2 in spermatogenesis as candidate for boar fertility, but still the lack of association across populations should be considered.
Collapse
Affiliation(s)
- A Gunawan
- Institute of Animal Science, Animal Breeding and Husbandry Group, University of Bonn, Bonn, Germany
| | | | | | | | | | | | | | | | | |
Collapse
|
29
|
Nakamura N. The Role of the Transmembrane RING Finger Proteins in Cellular and Organelle Function. MEMBRANES 2011; 1:354-93. [PMID: 24957874 PMCID: PMC4021871 DOI: 10.3390/membranes1040354] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/26/2011] [Revised: 11/24/2011] [Accepted: 12/05/2011] [Indexed: 01/08/2023]
Abstract
A large number of RING finger (RNF) proteins are present in eukaryotic cells and the majority of them are believed to act as E3 ubiquitin ligases. In humans, 49 RNF proteins are predicted to contain transmembrane domains, several of which are specifically localized to membrane compartments in the secretory and endocytic pathways, as well as to mitochondria and peroxisomes. They are thought to be molecular regulators of the organization and integrity of the functions and dynamic architecture of cellular membrane and membranous organelles. Emerging evidence has suggested that transmembrane RNF proteins control the stability, trafficking and activity of proteins that are involved in many aspects of cellular and physiological processes. This review summarizes the current knowledge of mammalian transmembrane RNF proteins, focusing on their roles and significance.
Collapse
Affiliation(s)
- Nobuhiro Nakamura
- Department of Biological Sciences, Tokyo Institute of Technology, 4259-B13 Nagatsuta-cho, Midori-ku, Yokohama 226-8501, Japan.
| |
Collapse
|
30
|
Yogo K, Tojima H, Ohno JY, Ogawa T, Nakamura N, Hirose S, Takeya T, Kohsaka T. Identification of SAMT family proteins as substrates of MARCH11 in mouse spermatids. Histochem Cell Biol 2011; 137:53-65. [PMID: 22075566 DOI: 10.1007/s00418-011-0887-y] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/30/2011] [Indexed: 12/12/2022]
Abstract
MARCH11, a RING-finger transmembrane ubiquitin ligase, is predominantly expressed in spermatids and localized to the trans-Golgi network (TGN) and multivesicular bodies (MVBs). Because ubiquitination acts as a sorting signal of cargo proteins, MARCH11 has been postulated to mediate selective protein sorting via the TGN-MVB pathway. However, the physiological substrate of MARCH11 has not been identified. In this study, we have identified and characterized SAMT1, a member of a novel 4-transmembrane protein family, which consists of four members. Samt1 mRNA and its expression product were found to be specific to the testis and were first detected in germ cells 25 days after birth in mice. Immunohistochemical analysis further revealed that SAMT1 was specifically expressed in haploid spermatids during the cap and acrosome phases. Confocal microscopic analysis showed that SAMT1 co-localized with MARCH11 as well as with fucose-containing glycoproteins, another TGN/MVB marker, and LAPM2, a late endosome/lysosome marker. Furthermore, we found that MARCH11 could increase the ubiquitination of SAMT1 and enhance its lysosomal delivery and degradation in an E3 ligase activity-dependent manner. In addition, the C-terminal region of SAMT1 was indispensable for its ubiquitination and proper localization. The other member proteins of the SAMT family also showed similar expression profile, intracellular localization, and biochemical properties, including ubiquitination by MARCH11. These results suggest that SAMT family proteins are physiological substrates of MARCH11 and are delivered to lysosomes through the TGN-MVB pathway by a ubiquitin-dependent sorting system in mouse spermatids.
Collapse
Affiliation(s)
- Keiichiro Yogo
- Animal Reproduction and Physiology, Faculty of Agriculture, Shizuoka University, 836 Ohya, Suruga, Shizuoka 422-8529, Japan.
| | | | | | | | | | | | | | | |
Collapse
|
31
|
Association study and expression analysis of porcine ESR1 as a candidate gene for boar fertility and sperm quality. Anim Reprod Sci 2011; 128:11-21. [DOI: 10.1016/j.anireprosci.2011.08.008] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2011] [Revised: 08/12/2011] [Accepted: 08/24/2011] [Indexed: 02/03/2023]
|
32
|
Roqueta-Rivera M, Abbott TL, Sivaguru M, Hess RA, Nakamura MT. Deficiency in the omega-3 fatty acid pathway results in failure of acrosome biogenesis in mice. Biol Reprod 2011; 85:721-32. [PMID: 21653892 DOI: 10.1095/biolreprod.110.089524] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
An omega-3 fatty acid, docosahexaenoic acid (DHA), is enriched in testicular membrane phospholipids, but its function is not well understood. The Fads2 gene encodes an enzyme required for the endogenous synthesis of DHA. Using Fads2-null mice (Fads2-/-), we found in our preceding studies that DHA deficiency caused the arrest of spermiogenesis and male infertility, both of which were reversed by dietary DHA. In this study, we investigated a cellular mechanism underlying the DHA essentiality in spermiogenesis. Periodic acid-Schiff staining and acrosin immunohistochemistry revealed the absence of acrosomes in Fads2-/- round spermatids. Acrosin, an acrosomal marker, was scattered throughout the cytoplasm of the Fads2-/- spermatids, and electron microscopy showed that proacrosomal granules were formed on the trans-face of the Golgi. However, excessive endoplasmic reticulum and vesicles were present on the cis-face of the Golgi in Fads2-/- spermatids. The presence of proacrosomal vesicles but lack of a developed acrosome in Fads2-/- spermatids suggested failed vesicle fusion. Syntaxin 2, a protein involved in vesicle fusion, colocalized with acrosin in the acrosome of wild-type mice. In contrast, syntaxin 2 remained scattered in reticular structures and showed no extensive colocalization with acrosin in the Fads2-/- spermatids, suggesting failed fusion with acrosin-containing vesicles or failed transport and release of syntaxin 2 vesicles from Golgi. Dietary supplementation of DHA in Fads2-/- mice restored an intact acrosome. In conclusion, acrosome biogenesis under DHA deficiency is halted after release of proacrosomal granules. Misplaced syntaxin 2 suggests an essential role of DHA in proper delivery of membrane proteins required for proacrosomal vesicle fusion.
Collapse
Affiliation(s)
- Manuel Roqueta-Rivera
- Department of Food Science & Human Nutrition, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
| | | | | | | | | |
Collapse
|
33
|
Lerer-Goldshtein T, Bel S, Shpungin S, Pery E, Motro B, Goldstein RS, Bar-Sheshet SI, Breitbart H, Nir U. TMF/ARA160: A key regulator of sperm development. Dev Biol 2010; 348:12-21. [DOI: 10.1016/j.ydbio.2010.07.033] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2010] [Revised: 07/21/2010] [Accepted: 07/27/2010] [Indexed: 11/28/2022]
|
34
|
Zuo Y, Gao J, Yeung WSB, Lee KF. The testis-specific VAD1.3/AEP1 interacts with β-actin and syntaxin 1 and directs peri-nuclear/Golgi expression with bipartite nucleus localization (BNL) sequence. Biochem Biophys Res Commun 2010; 401:275-80. [PMID: 20850414 DOI: 10.1016/j.bbrc.2010.09.049] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2010] [Accepted: 09/10/2010] [Indexed: 01/24/2023]
Abstract
VAD1.3 (AEP1), a novel testis-specific gene, was first isolated from the testis of a retinol-treated vitamin-A-deficient (VAD) rat model. It is expressed at the acrosomal region of spermatids from postnatal day 25. VAD1.3 immunoreactivity is present in rat, human, monkey and porcine spermatids and spermatozoa, suggesting that VAD1.3 may play a role in acrosome formation. However, direct evidence on the detailed sub-cellular localization of the VAD1.3 protein in the acrosome and how VAD1.3 is involved in acrosome formation remains largely unknown. Here, we isolated and identified VAD1.3 interacting proteins by immunoprecipitation followed by mass spectrometry, and determined the functional motifs of VAD1.3 that were important for its specific sub-cellular location in vitro. We found that VAD1.3 bound to syntaxin 1 and β-actin proteins in vitro. Immunogold electron microscopic study localized VAD1.3 immunoreactivity to the acrosome membranes and matrix, and colocalized it with the β-actin protein. The full-length GFP-VAD (1-3601) and GFP-VAD (1-730) fusion proteins that contain the bipartite nucleus localization (BNL) signal were located in the peri-nucleus/Golgi of the transfected cells. In addition, the GFP signal colocalized with the endoplasmic reticulum marker and the syntaxin 1 protein in the transfected HeLa and GC-2spd cells. The C-terminal GFP-VAD (1770-3601) was expressed in the nucleus. Taken together, VAD1.3 interacts with β-actin and syntaxin 1 in vitro. The BNL signal may mediate the peri-nuclei localization of the protein that may interact with syntaxin 1 and β-actin for acrosome formation in spermatogenesis.
Collapse
Affiliation(s)
- Yan Zuo
- Department of Obstetrics and Gynaecology, The University of Hong Kong, Pokfulam, Hong Kong
| | | | | | | |
Collapse
|
35
|
Hsu CC, Hou MF, Hong JR, Wu JL, Her GM. Inducible male infertility by targeted cell ablation in zebrafish testis. MARINE BIOTECHNOLOGY (NEW YORK, N.Y.) 2010; 12:466-478. [PMID: 19936986 DOI: 10.1007/s10126-009-9248-4] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2009] [Accepted: 09/22/2009] [Indexed: 05/28/2023]
Abstract
To generate a zebrafish model of inducible male sterility, we expressed an Escherichia coli nitroreductase (Ntr) gene in the male germ line of zebrafish. The Ntr gene encodes an enzyme that can convert prodrugs such as metronidazole (Met) to cytotoxins. A fusion protein eGFP:Ntr (fusing Ntr to eGFP) under control of approximately 2 kb putative promoters of the zebrafish testis-specific genes, A-kinase anchoring protein-associated protein (Asp), outer dense fibers (Odf), and sperm acrosomal membrane-associated protein (Sam) was expressed in the male germ line. Three independent and four compound transgenic zebrafish lines expressing eGFP:Ntr were established. Female carriers were fertile, while males exhibited different levels of sterility and appeared normal, otherwise. Developmental analysis shows that germ cells survived and testes were normal before Met treatment, but that the testes of all male transgenic zebrafish exhibited variously depleted prospermatogonia after Met treatment. Particularly in a triple-transgenic line, Tg(AOS-eGFP:Ntr)[Tg(Asp-eGFP:Ntr; Odf-eGFP:Ntr; Sam-eGFP:Ntr)], the transgenic males had very small testes that were virtually devoid of germ cells, and the residual germ cells had almost completely disappeared after 2 weeks of Met treatment. These zebrafish transgenic lines show the complete testis specificity of inducible male sterility after Met treatment and reveal a period of the Ntr/Met ablation activity just prior to formation of the definitive adult spermatogonial cell population. This study demonstrates that combined genetic and pharmacological methods for developing an "infertile breeding technology" have practical application in controlling genetically modified (GM) fish breeding and meet the standards of biological and environment safety for other GM species.
Collapse
Affiliation(s)
- Chia-Chun Hsu
- Department of Radiology, Tri-Service General Hospital, 325, Cheng-Kung Road Sec. 2, Taipei 114, Taiwan, Republic of China
| | | | | | | | | |
Collapse
|
36
|
Guo X, Shen J, Xia Z, Zhang R, Zhang P, Zhao C, Xing J, Chen L, Chen W, Lin M, Huo R, Su B, Zhou Z, Sha J. Proteomic analysis of proteins involved in spermiogenesis in mouse. J Proteome Res 2010; 9:1246-56. [PMID: 20099899 DOI: 10.1021/pr900735k] [Citation(s) in RCA: 60] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Spermiogenesis is a unique process in mammals during which haploid round spermatids mature into spermatozoa in the testis. Its successful completion is necessary for fertilization and its malfunction is an important cause of male infertility. Here, we report the high-confidence identification of 2116 proteins in mouse haploid germ cells undergoing spermiogenesis: 299 of these were testis-specific and 155 were novel. Analysis of these proteins showed many proteins possibly functioning in unique processes of spermiogenesis. Of the 84 proteins annotated to be involved in vesicle-related events, VAMP4 was shown to be important for acrosome biogenesis by in vivo knockdown experiments. Knockdown of VAMP4 caused defects of acrosomal vesicle fusion and significantly increased head abnormalities in spermatids from testis and sperm from the cauda epididymis. Analysis of chromosomal distribution of the haploid genes showed underrepresentation on the X chromosome and overrepresentation on chromosome 11, which were due to meiotic sex chromosome inactivation and expansion of testis-expressed gene families, respectively. Comparison with transcriptional data showed translational regulation during spermiogenesis. This characterization of proteins involved in spermiogenesis provides an inventory of proteins useful for understanding the mechanisms of male infertility and may provide candidates for drug targets for male contraception and male infertility.
Collapse
Affiliation(s)
- Xuejiang Guo
- Laboratory of Reproductive Medicine, Department of Histology and Embryology, Nanjing Medical University, Nanjing 210029, China
| | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
37
|
Bilir A, Erguven M, Yazihan N, Aktas E, Oktem G, Sabanci A. Enhancement of vinorelbine-induced cytotoxicity and apoptosis by clomipramine and lithium chloride in human neuroblastoma cancer cell line SH-SY5Y. J Neurooncol 2010; 100:385-95. [PMID: 20467784 DOI: 10.1007/s11060-010-0209-6] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2009] [Accepted: 04/14/2010] [Indexed: 02/04/2023]
Abstract
The aim of this work is to investigate whether clomipramine (CIM) and lithium chloride (LiCl) potentiate the cytotoxicity of vinorelbine (VNR) on SH-SY5Y human neuroblastoma cells in vitro and whether midkine (MK) can be a resistance factor for these treatments. Four groups of experiments were performed for 96 h using both monolayer and spheroid cultures of SH-SY5Y cells: (1) control group, (2) singly applied VNR, CIM, and LiCl, (3) VNR with CIM, and (4) VNR with LiCl. Their effects on monolayer and spheroid cultures were determined by evaluating cell proliferation, bromodeoxyuridine labeling index (BrdU-LI), apoptosis, cyclic adenosine monophosphate (cAMP) and midkine levels, colony-forming efficiency, spheroid size, and ultrastructure. In comparison with the control group, single and combination drug treatments significantly reduced the proliferation index (PI) for 96 h. The most potent reduction of PI was observed with VNR in combination with CIM and LiCl for all time intervals. VNR with CIM and LiCl seemed to be ineffective in reducing BrdU-LI of both monolayer cell and spheroid cultures, spheroid size, and cAMP level. VNR with LiCl increased apoptosis at 24 h, however VNR with CIM increased apoptosis at 96 h. VNR was the most potent drug in inhibiting colony-forming efficiency. The combination of VNR with CIM was the most potent in reducing midkine levels among all groups. Interestingly, the combination of VNR with LiCl led to both nuclear membrane breakdown and disappearance of the cellular membranes inside the spheroids. Both CIM and LiCl seemed to potentiate VNR-induced cytotoxicity, and MK was not a resistance factor for VNR, LiCl, and CIM.
Collapse
Affiliation(s)
- Ayhan Bilir
- Department of Histology and Embryology, Faculty of Medicine, Istanbul University, Istanbul, Turkey.
| | | | | | | | | | | |
Collapse
|
38
|
Hu XQ, Ji SY, Li YC, Fan CH, Cai H, Yang JL, Zhang CP, Chen M, Pan ZF, Hu ZY, Gao F, Liu YX. Acrosome formation-associated factor is involved in fertilization. Fertil Steril 2010; 93:1482-92. [DOI: 10.1016/j.fertnstert.2009.01.067] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2008] [Revised: 01/02/2009] [Accepted: 01/07/2009] [Indexed: 01/15/2023]
|
39
|
Phospholipase D function in Saccharomyces cerevisiae. Biochim Biophys Acta Mol Cell Biol Lipids 2009; 1791:970-4. [DOI: 10.1016/j.bbalip.2009.01.013] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2008] [Revised: 01/07/2009] [Accepted: 01/08/2009] [Indexed: 11/21/2022]
|
40
|
Sousa APM, Gomes-Santos CSS, Ramalho-Santos J. LOCALIZATION OF SNARES, NSF AND CAVEOLIN 1 IN HUMAN SPERMATOZOA: RELATIONSHIP WITH SEMINAL PARAMETERS. ACTA ACUST UNITED AC 2009; 52:347-53. [PMID: 16873134 DOI: 10.1080/01485010600667050] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Membrane fusion is a very important process in gametes. The mechanism of membrane fusion during the AR has been proposed to involve SNAREs. Our aim is to quantify patterns of localization of Caveolin 1, SNAREs (Syntaxin 1A, Syntaxin 2 and VAMP 1) and NSF on human sperm, to determine how the differential distribution of these proteins might be interdependent and to evaluate if this distribution is related with seminal parameters. These proteins are present in different regions of the head of human sperm: anterior, equatorial and posterior regions and that Syntaxin 2 and Syntaxin 1A had a slightly different pattern of labelling. The presence and localization of SNAREs, NSF and Caveolin 1 do not correlate with seminal parameters. There is significant correlation between NSF and SNAREs, which may indicate a cooperation of these proteins in membrane fusion mechanisms of human sperm.
Collapse
Affiliation(s)
- A P M Sousa
- Department of Zoology, Center for Neuroscience and Cell Biology, University of Coimbra, Portugal
| | | | | |
Collapse
|
41
|
Yu K, Hou L, Zhu JQ, Ying XP, Yang WX. KIFC1 participates in acrosomal biogenesis, with discussion of its importance for the perforatorium in the Chinese mitten crab Eriocheir sinensis. Cell Tissue Res 2009; 337:113-23. [PMID: 19484267 DOI: 10.1007/s00441-009-0800-3] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2009] [Accepted: 03/30/2009] [Indexed: 11/26/2022]
Abstract
Spermatogenesis is a complicated process during which spermatogonia undergo proliferation and divisions leading, after a series of dramatic changes, to the production of mature spermatozoa. Many molecular motors are involved in this process. KIFC1, a C-terminal kinesin motor, participates in acrosome biogenesis and nuclear shaping. We report here the expression profile of KIFC1 during spermatogenesis in the Chinese mitten crab, Eriocheir sinensis. KIFC1 mainly localizes around the nucleus but is also present within the nucleus of the spermatogonium and spermatocyte. At the early spermatid stage, KIFC1 begins to be distributed on the nuclear membrane at the region where the proacrosomal vesicle is located. By the late spermatid stage, KIFC1 is found on the acrosome. Immunocytochemical and ultrastructural analyses have shown that KIFC1 localizes on the perforatorium, which is composed of an apical cap and an acrosomal tubule. We demonstrate that, during spermatogenesis in E. sinensis, KIFC1 probably plays important roles in the biogenesis of the acrosome and in its maintenance. KIFC1 may also be essential for the eversion of the acrosome during fertilization.
Collapse
Affiliation(s)
- Keming Yu
- College of Life Sciences, Liaoning Normal University, Dalian, 116029, People's Republic of China
| | | | | | | | | |
Collapse
|
42
|
Signal transduction pathways that regulate sperm capacitation and the acrosome reaction. Arch Biochem Biophys 2009; 485:72-81. [DOI: 10.1016/j.abb.2009.02.003] [Citation(s) in RCA: 80] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2008] [Revised: 02/06/2009] [Accepted: 02/07/2009] [Indexed: 01/28/2023]
|
43
|
Guo X, Zhang P, Huo R, Zhou Z, Sha J. Analysis of the human testis proteome by mass spectrometry and bioinformatics. Proteomics Clin Appl 2008; 2:1651-7. [PMID: 21136815 DOI: 10.1002/prca.200780120] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2007] [Indexed: 11/10/2022]
Abstract
The testis is a unique organ responsible for sperm production and androgen secretion in men. To analyze the human testis proteome on a large scale, 1-D SDS-PAGE and RP-LC-MS/MS were applied and 1430 proteins in the human testis were identified. Both the false-positive rate of peptides and protein identification confidence scores were calculated in the present study. Subsequent bioinformatics analysis of the human testis proteome revealed 39 testis-specific proteins which may be important for testis functions. And a large family of proteins were identified possibly involved in alternative splicing, which may also be involved in testis-specific splicing events and explain why splicing is so prevalent in the testis. Compared with the studies on brain proteome, researches on the testis proteome is still very limited. Studies of these proteins will give a better understanding on the function of the testis. Moreover, this large-scale identification of testis proteins in humans could serve as a reference for future studies on the mechanisms underlying male infertility, searching for potential contraceptive targets, and developing new treatments for testis cancer.
Collapse
Affiliation(s)
- Xuejiang Guo
- Laboratory of Reproductive Medicine, Department of Histology and Embryology, Nanjing Medical University, Nanjing, China
| | | | | | | | | |
Collapse
|
44
|
Lee NP, Wong EW, Mruk DD, Cheng CY. Sphingomyelin synthases and testicular function. Expert Rev Endocrinol Metab 2008; 3:593-601. [PMID: 30290412 DOI: 10.1586/17446651.3.5.593] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Sphingomyelin synthase (SMS) is a cellular enzyme that catalyzes de novo synthesis of sphingomyelin (SM), which is a vital lipid component of cell membranes. Both members of the SMS family, SMS1 and SMS2, are found in mammalian testes and they are located in distinctive subcellular compartments, with SMS1 in the Golgi apparatus and SMS2 in the plasma membrane. At present, the precise function of SMS in the testis remains unknown. Recent studies have demonstrated an unique association of SMS2 with spermatids, particularly near developing acrosomes and the junction restructuring site at the apical ectoplasmic specialization (a testis-specific atypical adherens junction type) and Leydig cells in the rat testis. These data illustrate the possible involvement of SMS2 in spermiogenesis and, perhaps, steroidogenesis in male reproductive function. This review summarizes the latest findings on SMS in the field, particularly its role in testicular function.
Collapse
Affiliation(s)
- Nikki Py Lee
- a Center for Biomedical Research, Population Council, 1230 York Avenue, New York, NY 10065, USA. Present Address: Research Assistant Professor, Department of Surgery, Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong.
| | - Elissa Wp Wong
- b Center for Biomedical Research, Population Council, 1230 York Avenue, New York, NY 10065, USA.
| | - Dolores D Mruk
- c Center for Biomedical Research, Population Council, 1230 York Avenue, New York, NY 10065, USA.
| | - C Yan Cheng
- d Population Council, 1230 York Avenue, New York, NY 10065, USA.
| |
Collapse
|
45
|
Lee KF, Tam YT, Zuo Y, Cheong AW, Pang RT, Lee NP, Shum CK, Tam PC, Cheung AN, Yang ZM, Yeung WS, Luk JM. Characterization of an acrosome protein VAD1.2/AEP2 which is differentially expressed in spermatogenesis. Mol Hum Reprod 2008; 14:465-74. [DOI: 10.1093/molehr/gan041] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
|
46
|
Huang XY, Guo XJ, Shen J, Wang YF, Chen L, Xie J, Wang NL, Wang FQ, Zhao C, Huo R, Lin M, Wang X, Zhou ZM, Sha JH. Construction of a proteome profile and functional analysis of the proteins involved in the initiation of mouse spermatogenesis. J Proteome Res 2008; 7:3435-46. [PMID: 18582094 DOI: 10.1021/pr800179h] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Spermatogenesis is a complex process of terminal differentiation wherein mature sperm are produced. In the first wave of mouse spermatogenesis, different spermatogenic cells appear at specific time points, and their appearance is expected to be accompanied by changes in specific protein expression patterns. In this study, we used 2D-PAGE and MALDI-TOF/TOF technology to construct a comparative proteome profile for mouse testis at specific time points (days 0, 7, 14, 21, 28, and 60 postpartum). We identified 362 differential protein spots corresponding to 257 different proteins. Further cluster analysis revealed 6 expression patterns, and bioinformatics analysis revealed that each pattern was related to many specific cell processes. Among them, 28 novel proteins with unknown functions neither in somatic cells nor germ cells were identified, 8 of which were found to be uniquely or highly expressed in mouse testes via comparison with the GNF SymAtlas database. Further, we randomly selected 7 protein spots and the above 8 novel proteins to verify the expression pattern via Western blotting and RT-PCR, and 6 proteins with little information in testis were further investigated to explore their cellular localization during spermatogenesis by performing immunohistochemistry for the mouse testis tissue. Taken together, the above results reveal an important proteome profile that is functional during the first wave of mouse spermatogenesis, and they provide a strong basis for further research.
Collapse
Affiliation(s)
- Xiao-Yan Huang
- Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, China
| | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
47
|
Chibalina MV, Seaman MNJ, Miller CC, Kendrick-Jones J, Buss F. Myosin VI and its interacting protein LMTK2 regulate tubule formation and transport to the endocytic recycling compartment. J Cell Sci 2007; 120:4278-88. [PMID: 18029400 DOI: 10.1242/jcs.014217] [Citation(s) in RCA: 114] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Myosin VI is an actin-based retrograde motor protein that plays a crucial role in both endocytic and secretory membrane trafficking pathways. Myosin VI's targeting to and function in these intracellular pathways is mediated by a number of specific binding partners. In this paper we have identified a new myosin-VI-binding partner, lemur tyrosine kinase 2 (LMTK2), which is the first transmembrane protein and kinase that directly binds to myosin VI. LMTK2 binds to the WWY site in the C-terminal myosin VI tail, the same site as the endocytic adaptor protein Dab2. When either myosin VI or LMTK2 is depleted by siRNAs, the transferrin receptor (TfR) is trapped in swollen endosomes and tubule formation in the endocytic recycling pathway is dramatically reduced, showing that both proteins are required for the transport of cargo, such as the TfR, from early endosomes to the endocytic recycling compartment.
Collapse
Affiliation(s)
- Margarita V Chibalina
- Cambridge Institute for Medical Research, University of Cambridge, Wellcome Trust/MRC Building, Hills Road, Cambridge, CB2 2XY, UK
| | | | | | | | | |
Collapse
|
48
|
Feiden S, Stypa H, Wolfrum U, Wegener G, Kamp G. A novel pyruvate kinase (PK-S) from boar spermatozoa is localized at the fibrous sheath and the acrosome. Reproduction 2007; 134:81-95. [PMID: 17641091 DOI: 10.1530/rep-06-0250] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Boar spermatozoa contain a novel pyruvate kinase (PK-S) that is tightly bound at the acrosome of the sperm head and at the fibrous sheath in the principal piece of the flagellum, while the midpiece contains a soluble pyruvate kinase (PK). PK-S could not be solubilized by detergents, but by trypsin with no loss of activity. Purified PK-S as well as PK-S still bound to cell structures and soluble sperm PK have all kinetics similar to those of rabbit muscle PK-M1. The PK-S subunit had a relative molecular mass of 64 +/- 1 x 10(3) (n = 3), i.e. slightly higher than that of PK-M1, and carried an N-terminal extension (NH(2)-TSEAM-COOH) that is lacking in native PK-M1. Evidence is provided that PK-S is encoded by the PKM gene. Antibodies produced against the N-terminus of purified PK-S (NH(2)-TSEAMPKAHMDAG-COOH) were specific for PK-S as they did not react with somatic PKs or soluble sperm PK, while anti-PK-M1 recognized both sperm PKs. Immunofluorescence microscopy showed anti-PK-S to label the acrosome and the flagellar principal piece, whereas the midpiece containing the mitochondria was labelled only by anti-PK-M1. Immunogold labelling confirmed the localization of PK-S at the acrosome. In the principal piece, both polyclonal anti-PK-M1 and anti-PK-S were found at the fibrous sheath. Our results suggest that PK-S is a major component in the structural organization of glycolysis in boar spermatozoa.
Collapse
Affiliation(s)
- Sandra Feiden
- Molecular Physiology Section, Institute of Zoology, Johannes Gutenberg-University, Becherweg 9-11, D-55099 Mainz, Germany
| | | | | | | | | |
Collapse
|
49
|
Hyenne V, Harf JC, Latz M, Maro B, Wolfrum U, Simmler MC. Vezatin, a ubiquitous protein of adherens cell-cell junctions, is exclusively expressed in germ cells in mouse testis. Reproduction 2007; 133:563-74. [PMID: 17379651 DOI: 10.1530/rep-06-0271] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
In the male reproductive organs of mammals, the formation of spermatozoa takes place during two successive phases: differentiation (in the testis) and maturation (in the epididymis). The first phase, spermiogenesis, relies on a unique adherens junction, the apical ectoplasmic specialization linking the epithelial Sertoli cells to immature differentiating spermatids. Vezatin is a transmembrane protein associated with adherens junctions and the actin cytoskeleton in most epithelial cells. We report here the expression profile of vezatin during spermatogenesis. Vezatin is exclusively expressed in haploid germ cells. Immunocytochemical and ultrastructural analyses showed that vezatin intimately coincides, temporally and spatially, with acrosome formation. While vezatin is a transmembrane protein associated with adherens junctions in many epithelial cells, it is not seen at the ectoplasmic specializations, neither at the basal nor at the apical sites, in the seminiferous epithelium. In particular, vezatin does not colocalize with espin and myosin VIIa, two molecular markers of the ectoplasmic specialization. In differentiating spermatids, ultrastructural data indicate that vezatin localizes in the acrosome. In epididymal sperm, vezatin localizes also to the outer acrosomal membrane. Considering its developmental and molecular characteristics, vezatin may be involved in the assembly/stability of this spermatic membrane.
Collapse
Affiliation(s)
- Vincent Hyenne
- Biologie Cellulaire du Développement, UMR 7622, CNRS, Université Pierre et Marie Curie, 9 Quai St Bernard, 75252 Paris cedex 05, France
| | | | | | | | | | | |
Collapse
|
50
|
Morokuma Y, Nakamura N, Kato A, Notoya M, Yamamoto Y, Sakai Y, Fukuda H, Yamashina S, Hirata Y, Hirose S. MARCH-XI, a novel transmembrane ubiquitin ligase implicated in ubiquitin-dependent protein sorting in developing spermatids. J Biol Chem 2007; 282:24806-15. [PMID: 17604280 DOI: 10.1074/jbc.m700414200] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
A mechanism by which ubiquitinated cargo proteins are sorted into multivesicular bodies (MVBs) from plasma and trans-Golgi network (TGN) membranes is well established in yeast and mammalian somatic cells. However, the ubiquitin-dependent sorting pathway has not been clearly defined in germ cells. In this study we identified a novel member of the transmembrane RING-finger family of proteins, termed membrane-associated RING-CH (MARCH)-XI, that is expressed predominantly in developing spermatids and weakly in brain and pituitary. MARCH-XI possesses an E3 ubiquitin ligase activity that targets CD4 for ubiquitination. Immunoelectron microscopy of rat round spermatids showed that MARCH-XI is localized to TGN-derived vesicles and MVBs. Fluorescence staining of rat round spermatids and immunoprecipitation of rat testis demonstrated that MARCH-XI forms complexes with the adaptor protein complex-1 and with fucose-containing glycoproteins including ubiquitinated forms. Furthermore, the C-terminal region of MARCH-XI mediates its interaction with mu1-adaptin and Veli through a tyrosine-based motif and a PDZ binding motif, respectively. Our data suggest that MARCH-XI acts as a ubiquitin ligase with a role in ubiquitin-mediated protein sorting in the TGN-MVB transport pathway, which may be involved in mammalian spermiogenesis.
Collapse
Affiliation(s)
- Yuri Morokuma
- Department of Biological Sciences, Tokyo Institute of Technology, Yokohama 226-8501, Japan
| | | | | | | | | | | | | | | | | | | |
Collapse
|