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Mao J, Zhang L. MiR-320a upregulation improves IL-1β-induced osteoarthritis via targeting the DAZAP1 and MAPK pathways. J Orthop Surg Res 2023; 18:541. [PMID: 37507717 PMCID: PMC10386766 DOI: 10.1186/s13018-023-03984-2] [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] [Received: 05/06/2022] [Accepted: 07/06/2023] [Indexed: 07/30/2023] Open
Abstract
PURPOSE Osteoarthritis (OA), a constant illness described by articular cartilage degeneration, usually manifested by joint pain and helpless development. Numerous literatures suggest that microRNAs play an important regulatory role in OA, yet the role of miR-320a in OA remains largely obscure. MATERIALS AND METHODS To evaluate the expression of miR-320a mRNA, quantitative real-time polymerase chain reaction was used. Cell counting kit-8 assay, Edu staining, Annexin V-FITC/PI apoptosis detection assay, Caspases 3 staining, and trypan staining were conducted to monitor cell proliferation and apoptosis. Western blot was applied to examine DAZAP1 and ERK/JNK/MAPK associated protein expression. Luciferase reporter gene experiments were performed to confirm the relationships between miR-320a and DAZAP1. ELISA assay was adopted to analyze the secretion of inflammation cytokines IL-6, IL-8, and TNF-α. RESULTS In an in vitro osteoarthritis model caused by IL-1β, miR-320a expression was markedly reduced. Overexpression of miR-320a restored IL-1β-inhibited chondrocyte proliferation, induced apoptosis and inflammatory response. Mechanistically, miR-320a affected HC-A cell proliferation, apoptosis and inflammatory response by regulating DAZAPI. Meanwhile, the ERK/JNK/MAPK pathway is also involved in the regulatory role of miR-320a on OA. CONCLUSION Our results show an important role for miR-320a and provide new therapeutic targets for avoiding and treating osteoarthritis.
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Affiliation(s)
- Jing Mao
- Department of Rheumatology and Immunology, Jingzhou First People's Hospital, Yangtze University, Jingzhou, Hubei, China.
| | - Lei Zhang
- Department of Dermatology, Jingzhou First People's Hospital, Yangtze University, Jingzhou, Hubei, China
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Chen SW, Chen CP, Chern SR, Kuo YL, Chiu CL. The significance of karyotyping and azoospermia factor analysis in patients with nonobstructive azoospermia or oligozoospermia. Taiwan J Obstet Gynecol 2022; 61:800-805. [PMID: 36088047 DOI: 10.1016/j.tjog.2022.02.046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/11/2022] [Indexed: 11/30/2022] Open
Abstract
OBJECTIVE We present our study about the significance of karyotyping and azoospermia factor(AZF) analysis in patients with azoospermia or oligozoospermia. MATERIALS AND METHODS We retrospectively reviewed 141 Taiwanese patients with nonobstructive azoospermia and 45 Taiwanese patients with oligozoospermia at MacKay Memorial Hospital, Taiwan, from 2010 to 2021 to determine the significance of karyotyping and azoospermia factor analysis. The karyotyping was analyzed using the Giemsa banding method. The AZF microdeletions were determined using multiplex polymerase chain reaction using primers specifically flanking the AZF subregions. RESULTS We found that 7.80% of patients with nonobstructive azoospermia had AZF microdeletions and 19.86% of patients with nonobstructive azoospermia had chromosomal anomalies or polymorphic variations. Furthermore, 4.44% of patients with oligozoospermia had AZF microdeletions, and 4.44% of patients with oligozoospermia had chromosomal anomalies or polymorphic variations. CONCLUSION In this study, 25.53% of patients with nonobstructive azoospermia and 8.88% of patients with oligozoospermia had abnormal findings. The significance of karyotyping and azoospermia factor analysis is more critical in patients with nonobstructive azoospermia than patients with oligozoospermia. Both karyotyping and AZF analysis could prevent delayed treatment for male infertility through accurate diagnosis and appropriate treatment. The number of our patients with AZFc microdeletion was also higher than that of patients with AZFa or AZFb. The spermatogenic potential may gradually decline in patients with AZFc microdeletion. The earlier is the diagnosis, the earlier will be the retrieval of testicular spermatozoa.
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Affiliation(s)
- Shin-Wen Chen
- Department of Obstetrics and Gynecology, MacKay Memorial Hospital, Taipei, Taiwan
| | - Chih-Ping Chen
- Department of Obstetrics and Gynecology, MacKay Memorial Hospital, Taipei, Taiwan; Department of Medical Research, MacKay Memorial Hospital, Taipei, Taiwan; School of Chinese Medicine, College of Chinese Medicine, China Medical University, Taichung, Taiwan; Institute of Clinical and Community Health Nursing, National Yang Ming Chiao Tung University, Taipei, Taiwan; Department of Obstetrics and Gynecology, School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan; Department of Medical Laboratory Science and Biotechnology, College of Medical & Health Science, Asia University, Taichung, Taiwan.
| | - Schu-Rern Chern
- Department of Medical Research, MacKay Memorial Hospital, Taipei, Taiwan
| | - Yu-Ling Kuo
- Department of Obstetrics and Gynecology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Chien-Ling Chiu
- Department of Medical Research, MacKay Memorial Hospital, Taipei, Taiwan
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Stocchi L, Giardina E, Varriale L, Sechi A, Vagnini A, Parri G, Valentini M, Capalbo M. Can Tangier disease cause male infertility? A case report and an overview on genetic causes of male infertility and hormonal axis involved. Mol Genet Metab 2018; 123:43-49. [PMID: 29198592 DOI: 10.1016/j.ymgme.2017.11.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/21/2017] [Revised: 11/24/2017] [Accepted: 11/24/2017] [Indexed: 11/18/2022]
Abstract
Tangier disease is an autosomal recessive disorder caused by mutations in the ABCA1 gene and characterized by the accumulation of cholesteryl ester in various tissues and a near absence of high-density lipoprotein. The subject in this investigation was a 36-year-old Italian man with Tangier disease. He and his wife had come to the In Vitro Fertilization Unit, Pesaro Hospital (Azienda Ospedaliera Ospedali Riuniti Marche Nord) seeking help regarding fertility issues. The man was diagnosed with severe oligoasthenoteratozoospermia. Testosterone is the sex hormone necessary for spermatogenesis and cholesterol is its precursor; hence, we hypothesized that the characteristic cholesterol deficiency in Tangier disease patients could compromise their fertility. The aim of the study was to therefore to determine if there is an association between Tangier disease and male infertility. After excluding viral, infectious, genetic and anatomical causes of the subject's oligoasthenoteratozoospermia, we performed a hormonal analysis to verify our hypothesis. The patient was found to be negative for frequent bacteria and viruses. The subject showed a normal male karyotype and tested negative for Yq microdeletions and Cystic Fibrosis Transmembrane Conductance Regulator gene mutations. A complete urological examination was performed, and primary hypogonadism was also excluded. Conversely, hormonal analyses showed that the subject had a high level of follicle stimulating hormone and luteinizing hormone, low total testosterone and a significant decline in inhibin B. We believe that the abnormally low cholesterol levels typically found in subjects with Tangier disease may result in a reduced testosterone production which in turn could affect the hormonal axis responsible for spermatogenesis leading to a defective maturation of spermatozoa.
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Affiliation(s)
- Laura Stocchi
- Pathophysiology of Reproduction, U.O.C., IVF Unit, Azienda Ospedaliera Ospedali Riuniti Marche Nord, Pesaro, Italy.
| | - Emiliano Giardina
- Laboratory of Genomic Medicine-UILDM, Fondazione Santa Lucia IRCCS, Univ. Tor Vergata; Rome, Italy.
| | - Luigia Varriale
- Department of Clinical Pathology, U.O.S.D. D.A.L.T., Azienda Ospedaliera Ospedali Riuniti Marche Nord, Pesaro, Italy.
| | - Annalisa Sechi
- Regional Center for Rare Diseases, Academic Hospital of Udine, Italy.
| | - Andrea Vagnini
- Department of Clinical Pathology, U.O.S.D. D.A.L.T., Azienda Ospedaliera Ospedali Riuniti Marche Nord, Pesaro, Italy.
| | - Gianni Parri
- Department of Urology, Azienda Ospedaliera Ospedali Riuniti Marche Nord, Pesaro, Italy.
| | - Massimo Valentini
- Department of Clinical Pathology, U.O.S.D. D.A.L.T., Azienda Ospedaliera Ospedali Riuniti Marche Nord, Pesaro, Italy.
| | - Maria Capalbo
- General Director of Azienda Ospedaliera Ospedali Riuniti Marche Nord, Pesaro, Italy.
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Asadi F, Sadighi Gilani MA, Ghaheri A, Roodgar Saffari J, Zamanian M. The Prevalence of Y Chromosome Microdeletions in Iranian Infertile Men with Azoospermia and Severe Oligospermia. CELL JOURNAL 2016; 19:27-33. [PMID: 28367414 PMCID: PMC5241515 DOI: 10.22074/cellj.2016.4863] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/18/2016] [Accepted: 05/23/2016] [Indexed: 11/04/2022]
Abstract
OBJECTIVE Microdeletions of the Y chromosome long arm are the most common molecular genetic causes of severe infertility in men. They affect three regions including azoospermia factors (AZFa, AZFb and AZFc), which contain various genes involved in spermatogenesis. The aim of the present study was to reveal the patterns of Y chromosome microdeletions in Iranian infertile men referred to Royan Institute with azoospermia/ severe oligospermia. MATERIALS AND METHODS Through a cross-sectional study, 1885 infertile men referred to Royan Institute with azoospermia/severe oligospermia were examined for Y chromosome microdeletions from March 2012 to March 2014. We determined microdeletions of the Y chromosome in the AZFa, AZFb and AZFc regions using multiplex Polymerase chain reaction and six different Sequence-Tagged Site (STS) markers. RESULTS Among the 1885 infertile men, we determined 99 cases of Y chromosome microdeletions (5.2%). Among 99 cases, AZFc microdeletions were found in 70 cases (70.7%); AZFb microdeletions in 5 cases (5%); and AZFa microdeletions in only 3 cases (3%). AZFbc microdeletions were detected in 18 cases (18.1%) and AZFabc microdeletions in 3 cases (3%). CONCLUSION Based on these data, our results are in agreement with similar studies from other regions of the world as well as two other recent studies from Iran which have mostly reported a frequency of less than 10% for Y chromosome microdeletions.
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Affiliation(s)
- Fahimeh Asadi
- Department of Molecular and Cellular Sciences, Faculty of Advanced Sciences and Technology, Pharmaceutical Sciences Branch, Islamic Azad University, Tehran, Iran
| | - Mohammad Ali Sadighi Gilani
- Department of Andrology, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
| | - Azadeh Ghaheri
- Department of Epidemiology and Reproductive Health, Reproductive Epidemiology Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
| | - Javad Roodgar Saffari
- Department of Genetics, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
| | - Mohammadreza Zamanian
- Department of Genetics, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
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5
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Alikhani M, Sharifi Tabar M, Mirshahvaladi S, Kheimeh A, Sadighi Gilani MA, Sabbaghian M. Expression analysis of RNA-binding motif gene on Y chromosome (RBMY) protein isoforms in testis tissue and a testicular germ cell cancer-derived cell line (NT2). IRANIAN BIOMEDICAL JOURNAL 2014; 17:54-61. [PMID: 23567846 DOI: 10.6091/ibj.1148.2013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
BACKGROUND RNA-binding motif gene on Y chromosome (RBMY), a germ cell-specific nuclear protein, is known as a key factor in spermatogenesis and disorders associated with this protein have been recognized to be related to male infertility. Although it was suggested that this protein could have different functions during germ cell development, no studies have been conducted to uncover the mechanism of this potential function yet. Here, we analyzed the expression pattern of RBMY protein isoforms in testis compared to NT2, a testicular germ cell cancer-derived cell line, to test probability of differential expression of RBMY protein isoforms at different spermatogenesis stages. METHODS Full length and a segment of RBMY gene were cloned and expressed in E. coli. Anti-human RBMY antibody was produced in rabbit using the recombinant proteins as antigen. Western-blot and immunofluorescence were conducted for detection and comparison of RBMY protein isoforms. RESULTS Selected segment of RBMY protein resulted in producing a mono-specific antibody. As results shows, only the longest isoform of RBMY was expressed at protein level in NT2 cell line, while three isoforms of this protein were detected in the whole testis lysate. CONCLUSION The results imply that different alternative splicing may happen in testis cells and probably difference of RBMY function during spermatogenesis is due to the differential expression of RBMY protein isoforms. These results and further experiments on RBMY isoforms can help to obtain a better understanding of the function of this protein, which may increase our knowledge about spermatogenesis and causes of male infertility.
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Affiliation(s)
- Mehdi Alikhani
- Dept. of Molecular Systems Biology at Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Mehdi Sharifi Tabar
- Dept. of Molecular Systems Biology at Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Shahab Mirshahvaladi
- Dept. of Molecular Systems Biology at Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Abolfazl Kheimeh
- Animal Core Facility of Reproductive Biomedicine Research Center,
Royan Institute for Biotechnology, ACECR, Tehran, Iran
| | | | - Marjan Sabbaghian
- Dept. of Andrology at Reproductive Biomedicine Research Center, Royan Institute, ACECR, Tehran, Iran
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Yang QE, Oatley JM. Spermatogonial stem cell functions in physiological and pathological conditions. Curr Top Dev Biol 2014; 107:235-67. [PMID: 24439809 DOI: 10.1016/b978-0-12-416022-4.00009-3] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Sperm have a vital role in the continuity of a species by contributing genetic information to the next generation. Production of these specialized gametes in numbers sufficient to confer normal fertility occurs via cycling of the spermatogenic lineage, a process referred to as spermatogenesis. Continuity relies on the activities of a self-renewing reservoir of spermatogonial stem cells (SSCs) from which progenitors will arise that transiently amplify in number before committing to a pathway of terminal differentiation. A primary population of SSCs is established during neonatal development from a pool of quiescent gonocyte precursors that forms in embryogenesis. Disruption of this process has dire consequences on maintenance of a cycling spermatogenic lineage in adulthood. At present, the molecular mechanisms underlying initial formation of the SSC pool are largely undefined. However, several transcription factors and posttranscriptional regulators have been identified as important regulators of SSC self-renewal from studies with mutant mouse models and experimental manipulation within primary cultures of mouse SSCs. Importantly, loss of function of these self-renewal factors may be underlying causes of infertility. Furthermore, disruption in the establishment of the SSC state within gonocytes or misregulation of self-renewal may manifest as testicular germ cell tumors in postnatal life.
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Affiliation(s)
- Qi-En Yang
- Center for Reproductive Biology, School of Molecular Biosciences, College of Veterinary Medicine, Washington State University, Pullman, Washington, USA
| | - Jon M Oatley
- Center for Reproductive Biology, School of Molecular Biosciences, College of Veterinary Medicine, Washington State University, Pullman, Washington, USA.
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7
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Totonchi M, Mohseni Meybodi A, Borjian Boroujeni P, Sedighi Gilani M, Almadani N, Gourabi H. Clinical data for 185 infertile Iranian men with Y-chromosome microdeletion. J Assist Reprod Genet 2012; 29:847-53. [PMID: 22648283 DOI: 10.1007/s10815-012-9798-7] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2012] [Accepted: 05/14/2012] [Indexed: 10/28/2022] Open
Abstract
UNLABELLED Detection of Y-chromosome microdeletion is useful to obtain reliable genetic information for assisted reproductive techniques, thus avoiding unnecessary treatment and vertical transmission of genetic defects. PURPOSES This research was conducted over a six-year period to analyze clinical data, somatic cytogenetic abnormalities, and types of microdeletions in men with fertility disorders in Iran. METHODS AND PATIENTS A total of 3654 infertile men were included in this study. Semen samples were analyzed according to standard methods. Conventional chromosomal karyotyping was used to analyze chromosome abnormalities. Polymerase chain reaction (PCR) amplification using nine specific sequence-tagged sites (STS) was used to detect AZF microdeletions. RESULTS Out of the 3654 patients who were analyzed, AZF region microdeletions were detected in 185 cases (5.06 %). Karyotype analysis was available for 157 men and among them abnormal karyotypes were found in 51 cases (32.48 %). One hundred and forty-seven cases with Yq microdeletions suffered from azoospermia and 38 from severe oligozoospermia. Our data show that the most frequent microdeletions were in the AZFc region, followed by the AZFb + c + d, AZFb + c, AZFb, AZFa, and AZF a + c regions. CONCLUSION The study has confirmed that the detection of microdeletions in the AZF region is significant from a diagnostic viewpoint. It is also useful to obtain reliable genetic information from infertile men to determine the etiology of the deletions, and to avoid unnecessary treatments and vertical transmission of genetic defects.
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Affiliation(s)
- Mehdi Totonchi
- Department of Genetics, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
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Morton S, Yang HT, Moleleki N, Campbell D, Cohen P, Rousseau S. Phosphorylation of the ARE-binding protein DAZAP1 by ERK2 induces its dissociation from DAZ. Biochem J 2006; 399:265-73. [PMID: 16848763 PMCID: PMC1609909 DOI: 10.1042/bj20060681] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
A protein in RAW 264.7 macrophages, which became phosphorylated in response to LPS (lipopolysaccharide), was identified as the RNA-binding protein called DAZAP1 [DAZ (deleted in azoospermia)-associated protein 1]. The phosphorylation of this protein was prevented by specific inhibition of MKK1 [MAPK (mitogen-activated protein kinase) kinase 1], indicating that it was phosphorylated via the classical MAPK cascade. Further experiments showed that DAZAP1 was phosphorylated stoichiometrically in vitro by ERK2 (extracellular-signal-regulated protein kinase 2) at two Thr-Pro sequences (Thr269 and Thr315), and that both sites became phosphorylated in HEK-293 (human embryonic kidney 293) cells in response to PMA or EGF (epidermal growth factor), or RAW 264.7 macrophages in response to LPS. Phosphorylation induced by each stimulus was prevented by two structurally distinct inhibitors of MKK1 (PD184352 and U0126), demonstrating that DAZAP1 is a physiological substrate for ERK1/ERK2. The mutation of Thr269 and Thr315 to aspartate or the phosphorylation of these residues caused DAZAP1 to dissociate from its binding partner DAZ. DAZ interacts with PABP [poly(A)-binding protein] and thereby stimulates the translation of mRNAs containing short poly(A) tails [Collier, Gorgoni, Loveridge, Cooke and Gray (2005) EMBO J. 24, 2656-2666]. In the present study we have shown that DAZ cannot bind simultaneously to DAZAP1 and PABP, and suggest that the phosphorylation-induced dissociation of DAZ and DAZAP1 may allow the former to stimulate translation by interacting with PABP.
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Affiliation(s)
- Simon Morton
- MRC Protein Phosphorylation Unit, Faculty of Life Sciences, University of Dundee, CIR Building, Dow Street, Dundee DD1 5EH, U.K
| | - Huei-Ting Yang
- MRC Protein Phosphorylation Unit, Faculty of Life Sciences, University of Dundee, CIR Building, Dow Street, Dundee DD1 5EH, U.K
| | - Ntsane Moleleki
- MRC Protein Phosphorylation Unit, Faculty of Life Sciences, University of Dundee, CIR Building, Dow Street, Dundee DD1 5EH, U.K
| | - David G. Campbell
- MRC Protein Phosphorylation Unit, Faculty of Life Sciences, University of Dundee, CIR Building, Dow Street, Dundee DD1 5EH, U.K
| | - Philip Cohen
- MRC Protein Phosphorylation Unit, Faculty of Life Sciences, University of Dundee, CIR Building, Dow Street, Dundee DD1 5EH, U.K
| | - Simon Rousseau
- MRC Protein Phosphorylation Unit, Faculty of Life Sciences, University of Dundee, CIR Building, Dow Street, Dundee DD1 5EH, U.K
- To whom correspondence should be addressed (email )
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Abstract
Because a microdeletion containing the DAZ gene is the most frequently observed deletion in infertile men, the DAZ gene was considered a strong candidate for the azoospermia factor. A recent evolutionary analysis, however, suggested that DAZ was free from functional constraints and consequently played little or no role in human spermatogenesis. The major evidence for this surprising conclusion is that the nonsynonymous substitution rate is similar to the synonymous rate and to the rate in introns. In this study, we reexamined the evolution of the DAZ gene family by using maximum-likelihood methods, which accommodate variable selective pressures among sites or among branches. The results suggest that DAZ is not free from functional constraints. Most amino acids in DAZ are under strong selective constraint, while a few sites are under diversifying selection with nonsynonymous/ synonymous rate ratios (d(N)/d(S)) well above 1. As a result, the average d(N)/d(S) ratio over sites is not a sensible measure of selective pressure on the protein. Lineage-specific analysis indicated that human members of this gene family were evolving by positive Darwinian selection, although the evidence was not strong.
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Affiliation(s)
- J P Bielawski
- Department of Biology, Galton Laboratory, University College London, England.
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Matsuo N. Fetal testis formation: a critical event for sex determination and differentiation. ACTA PAEDIATRICA JAPONICA : OVERSEAS EDITION 1996; 38:377-9. [PMID: 8840550 DOI: 10.1111/j.1442-200x.1996.tb03511.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- N Matsuo
- Department of Pediatrics, Keio University School of Medicine, Tokyo, Japan
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