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Sahota JS, Thakur RS, Guleria K, Sambyal V. RAD51 and Infertility: A Review and Case-Control Study. Biochem Genet 2024; 62:1216-1230. [PMID: 37563467 DOI: 10.1007/s10528-023-10469-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Accepted: 07/24/2023] [Indexed: 08/12/2023]
Abstract
RAD51 is a highly conserved recombinase involved in the strand invasion/exchange of double-stranded DNA by homologous single-stranded DNA during homologous recombination repair. Although a majority of existing literature associates RAD51 with the pathogenesis of various types of cancer, recent reports indicate a role of RAD51 in maintenance of fertility. The present study reviews the role of RAD51 and its interacting proteins in spermatogenesis/oogenesis and additionally reports the findings from the molecular genetic screening of RAD51 135 G > C polymorphism in infertile cases and controls. Fifty-nine articles from PubMed and Google Scholar related to the reproductive role of RAD51 were reviewed. For case-control study, the PCR-RFLP method was used to screen the RAD51 135 G > C polymorphism in 201 infertile cases (100 males, 101 females) and 201 age- and gender-matched healthy controls (100 males, 101 females) from Punjab, North-West India. The review of literature shows that RAD51 is indispensable for spermatogenesis and oogenesis in animal models. Reports on the role of RAD51 in human fertility are limited, however it is involved in the pathogenesis of infertility in both males and females. Molecular genetic analyses in the infertile cases and healthy controls showed no statistically significant difference in the genotypic and allelic frequencies for RAD51 135 G > C polymorphism, even after segregation of the cases by type of infertility (primary/secondary). Therefore, the present study concluded that the RAD51 135 G > C polymorphism was neither associated with male nor female infertility in North-West Indians. This is the first report on RAD51 135 G > C polymorphism and infertility.
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Affiliation(s)
- Jatinder Singh Sahota
- Cytogenetics Laboratory, Department of Human Genetics, Guru Nanak Dev University (GNDU), Amritsar, 143005, Punjab, India
| | - Ranveer Singh Thakur
- Cytogenetics Laboratory, Department of Human Genetics, Guru Nanak Dev University (GNDU), Amritsar, 143005, Punjab, India
| | - Kamlesh Guleria
- Cytogenetics Laboratory, Department of Human Genetics, Guru Nanak Dev University (GNDU), Amritsar, 143005, Punjab, India
| | - Vasudha Sambyal
- Cytogenetics Laboratory, Department of Human Genetics, Guru Nanak Dev University (GNDU), Amritsar, 143005, Punjab, India.
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Long Noncoding RNA Mediated Regulation in Human Embryogenesis, Pluripotency, and Reproduction. Stem Cells Int 2022; 2022:8051717. [PMID: 35103065 PMCID: PMC8800634 DOI: 10.1155/2022/8051717] [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: 09/01/2021] [Accepted: 12/27/2021] [Indexed: 12/12/2022] Open
Abstract
Long noncoding RNAs (lncRNAs), a class of noncoding RNAs with more than 200 bp in length, are produced by pervasive transcription in mammalian genomes and regulate gene expression through various action mechanisms. Accumulating data indicate that lncRNAs mediate essential biological functions in human development, including early embryogenesis, induction of pluripotency, and germ cell development. Comprehensive analysis of sequencing data highlights that lncRNAs are expressed in a stage-specific and human/primate-specific pattern during early human development. They contribute to cell fate determination through interacting with almost all classes of cellular biomolecules, including proteins, DNA, mRNAs, and microRNAs. Furthermore, the expression of a few of lncRNAs is highly associated with the pathogenesis and progression of many reproductive diseases, suggesting that they could serve as candidate biomarkers for diagnosis or novel targets for treatment. Here, we review research on lncRNAs and their roles in embryogenesis, pluripotency, and reproduction. We aim to identify the underlying molecular mechanisms essential for human development and provide novel insight into the causes and treatments of human reproductive diseases.
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Han B, Yan Z, Yu S, Ge W, Li Y, Wang Y, Yang B, Shen W, Jiang H, Sun Z. Infertility network and hub genes for nonobstructive azoospermia utilizing integrative analysis. Aging (Albany NY) 2021; 13:7052-7066. [PMID: 33621950 PMCID: PMC7993690 DOI: 10.18632/aging.202559] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Accepted: 12/29/2020] [Indexed: 11/25/2022]
Abstract
Non-obstructive azoospermia (NOA) is the most severe form of male infertility owing to the absence of sperm during ejaculation as a result of failed spermatogenesis. The molecular mechanisms of NOA have not been well studied. Here, we revealed the dysregulated differentially expressed genes in NOA and related signaling pathways or biological processes. Cluster features of biological processes include spermatogenesis, fertilization, cilium movement, penetration of zona pellucida, sperm chromatin condensation, and being significantly enriched metabolic pathways in proximal tubule bicarbonate reclamation, aldosterone synthesis and secretion, glycolysis and glycogenesis pathways in NOA using Gene Ontology analysis and pathway enrichment analysis. The NOA gene co-expression network was constructed by weighted gene co-expression network analysis to identify the hub genes (CHD5 and SPTBN2). In addition, we used another Gene Expression Omnibus dataset (GSE45887) to validate these hub genes. Furthermore, we used the Seurat package to classify testicular tissue cells from NOA patients and to characterize the differential expression of hub genes in different cell types from different adult males based on the scRNA-seq dataset (GSE106487). These results provide new insights into the pathogenesis of NOA. Of particular note, CHD5 and SPTBN2 may be potential biomarkers for the diagnosis and treatment of NOA.
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Affiliation(s)
- Baoquan Han
- Department of Urology, Peking University Shenzhen Hospital, Shenzhen Peking University, The Hong Kong University of Science and Technology Medical Center, Shenzhen 518036, China
| | - Zihui Yan
- College of Life Sciences, Institute of Reproductive Sciences, Qingdao Agricultural University, Qingdao 266109, China
| | - Shuai Yu
- Department of Urology, Peking University Shenzhen Hospital, Shenzhen Peking University, The Hong Kong University of Science and Technology Medical Center, Shenzhen 518036, China
| | - Wei Ge
- College of Life Sciences, Institute of Reproductive Sciences, Qingdao Agricultural University, Qingdao 266109, China
| | - Yaqi Li
- Department of Urology, Zaozhuang Hospital of Zaozhuang Mining Group, Zaozhuang 277100, China
| | - Yan Wang
- Department of Urology, Peking University Shenzhen Hospital, Shenzhen Peking University, The Hong Kong University of Science and Technology Medical Center, Shenzhen 518036, China
| | - Bo Yang
- Guangdong and Shenzhen Key Laboratory of Male Reproductive Medicine and Genetics, Institute of Urology, Peking University Shenzhen Hospital, Shenzhen PKU-HKUST Medical Center, Shenzhen 518036, China
| | - Wei Shen
- Department of Urology, Peking University Shenzhen Hospital, Shenzhen Peking University, The Hong Kong University of Science and Technology Medical Center, Shenzhen 518036, China.,College of Life Sciences, Institute of Reproductive Sciences, Qingdao Agricultural University, Qingdao 266109, China
| | - Hui Jiang
- Department of Urology, Department of Andrology, Department of Human Sperm Bank, Peking University Third Hospital, Beijing 100191, China
| | - Zhongyi Sun
- Department of Urology, Peking University Shenzhen Hospital, Shenzhen Peking University, The Hong Kong University of Science and Technology Medical Center, Shenzhen 518036, China
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Liu L, Li F, Wen Z, Li T, Lv M, Zhao X, Zhang W, Liu J, Wang L, Ma X. Preliminary investigation of the function of hsa_circ_0049356 in nonobstructive azoospermia patients. Andrologia 2020; 52:e13814. [PMID: 32894622 DOI: 10.1111/and.13814] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Revised: 07/23/2020] [Accepted: 07/27/2020] [Indexed: 01/13/2023] Open
Abstract
Nonobstructive azoospermia (NOA), which is considered the most severe form of male infertility, has placed a heavy burden on families and society. As vital regulators of transcriptional and post-transcriptional levels, Noncoding RNAs (ncRNAs) are closely related to all the pathophysiological processes involved in infertility in males, especially spermatogenesis. Our study explored the expression levels of circ_0049356 in both the whole blood and seminal plasma samples of idiopathic NOA patients via quantitative real-time PCR. Furthermore, the relative expression of its host gene (CARM1) was also determined using the same methods. In addition, as circRNAs have been demonstrated to regulate gene expression as miRNAs sponge, we predicted a total of five miRNAs and 101 mRNAs as putative downstream targets and constructed a circRNA-miRNA-mRNA network. Based on the predictions, Gene Ontology and KEGG pathway analyses were performed for further bioinformatics analysis to explore the potential function and investigate the circ_0049356-miRNA-mRNA interactions. Our results show target mRNAs that have been predicted to regulate guanyl-nucleotide exchange factor activity to mediate the GTP/GDP exchange, and downstream targets possibly involved in the regulation of the actin cytoskeleton, which play a significant role in cytoskeleton rearrangement of germ cells during spermatogenesis.
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Affiliation(s)
- Lin Liu
- The Reproductive Medicine Center, The First Hospital of Lanzhou University, Lanzhou, China.,Key Laboratory of Reproductive Medicine and Embryo of Gansu Province, Lanzhou, China
| | | | - Zhen Wen
- Lanzhou University, Lanzhou, China
| | - Tao Li
- Lanzhou University, Lanzhou, China
| | - Meng Lv
- Lanzhou University, Lanzhou, China
| | - Xiaodong Zhao
- The Reproductive Medicine Center, The First Hospital of Lanzhou University, Lanzhou, China.,Key Laboratory of Reproductive Medicine and Embryo of Gansu Province, Lanzhou, China
| | - Wei Zhang
- The Reproductive Medicine Center, The First Hospital of Lanzhou University, Lanzhou, China.,Key Laboratory of Reproductive Medicine and Embryo of Gansu Province, Lanzhou, China
| | - Jing Liu
- The Reproductive Medicine Center, The First Hospital of Lanzhou University, Lanzhou, China.,Key Laboratory of Reproductive Medicine and Embryo of Gansu Province, Lanzhou, China
| | - Liyan Wang
- The Reproductive Medicine Center, The First Hospital of Lanzhou University, Lanzhou, China.,Key Laboratory of Reproductive Medicine and Embryo of Gansu Province, Lanzhou, China
| | - Xiaoling Ma
- The Reproductive Medicine Center, The First Hospital of Lanzhou University, Lanzhou, China.,Key Laboratory of Reproductive Medicine and Embryo of Gansu Province, Lanzhou, China
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Liang QX, Wang ZB, Lei WL, Lin F, Qiao JY, Filhol-Cochet O, Boldyreff B, Schatten H, Sun QY, Qian WP. Deletion of Ck2β gene causes germ cell development arrest and azoospermia in male mice. Cell Prolif 2019; 53:e12726. [PMID: 31755150 PMCID: PMC6985669 DOI: 10.1111/cpr.12726] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2019] [Revised: 10/29/2019] [Accepted: 10/30/2019] [Indexed: 12/28/2022] Open
Abstract
Objectives In humans, non‐obstructive azoospermia (NOA) is a major cause of male infertility. However, the aetiology of NOA is largely unknown. Previous studies reported that protein CK2β was abundantly and broadly expressed in spermatogenic cells. Here, we investigate whether protein CK2β participates in spermatogenesis. Materials and Methods In this study, we separated spermatogenic cells using STA‐PUT velocity sedimentation, analysed the expression pattern of protein CK2β by immunoblotting, specifically deleted Ck2β gene in early‐stage spermatogenic cells by crossing Ck2βfl mice with Stra8‐Cre+ mice and validated the knockout efficiency by quantitative RT‐PCR and immunoblotting. The phenotypes of Ck2βfl/Δ;SCre+ mice were studied by immunohistochemistry and immunofluorescence. The molecular mechanisms of male germ cell development arrest were elucidated by immunoblotting and TUNEL assay. Results Ablation of Ck2β gene triggered excessive germ cell apoptosis, germ cell development arrest, azoospermia and male infertility. Inactivation of Ck2β gene caused distinctly reduced expression of Ck2α′ gene and CK2α′ protein. Conclusions Ck2β is a vital gene for germ cell survival and male fertility in mice.
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Affiliation(s)
- Qiu-Xia Liang
- Department of Reproductive Medicine, Peking University Shenzhen Hospital, Shenzhen, Guangdong, China.,State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
| | - Zhen-Bo Wang
- 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
| | - Wen-Long Lei
- 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
| | - Fei Lin
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China.,Center for Reproductive Medicine, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China
| | - Jing-Yi Qiao
- 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
| | - Odile Filhol-Cochet
- INSERM U1036, Institute de Recherches en Technologies et Sciences pour le Vivant/Biologie du Cancer et de l'Infection, Commissariat à l'Énergie Atomique et aux Énergies Alternatives Grenoble, Grenoble, France
| | | | - Heide Schatten
- Department of Veterinary Pathobiology, University of Missouri, Columbia, Missouri
| | - Qing-Yuan Sun
- 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
| | - Wei-Ping Qian
- Department of Reproductive Medicine, Peking University Shenzhen Hospital, Shenzhen, Guangdong, China
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