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Hosseini M, Khalafiyan A, Zare M, Karimzadeh H, Bahrami B, Hammami B, Kazemi M. Sperm epigenetics and male infertility: unraveling the molecular puzzle. Hum Genomics 2024; 18:57. [PMID: 38835100 DOI: 10.1186/s40246-024-00626-4] [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: 03/04/2024] [Accepted: 05/27/2024] [Indexed: 06/06/2024] Open
Abstract
BACKGROUND The prevalence of infertility among couples is estimated to range from 8 to 12%. A paradigm shift has occurred in understanding of infertility, challenging the notion that it predominantly affects women. It is now acknowledged that a significant proportion, if not the majority, of infertility cases can be attributed to male-related factors. Various elements contribute to male reproductive impairments, including aberrant sperm production caused by pituitary malfunction, testicular malignancies, aplastic germ cells, varicocele, and environmental factors. MAIN BODY The epigenetic profile of mammalian sperm is distinctive and specialized. Various epigenetic factors regulate genes across different levels in sperm, thereby affecting its function. Changes in sperm epigenetics, potentially influenced by factors such as environmental exposures, could contribute to the development of male infertility. CONCLUSION In conclusion, this review investigates the latest studies pertaining to the mechanisms of epigenetic changes that occur in sperm cells and their association with male reproductive issues.
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Affiliation(s)
- Maryam Hosseini
- Department of Genetics and Molecular Biology, Faculty of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Anis Khalafiyan
- Department of Genetics and Molecular Biology, Faculty of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Mohammadreza Zare
- Department of Medical Genetics, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Haniye Karimzadeh
- Department of Genetics and Molecular Biology, Faculty of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Basireh Bahrami
- Department of Genetics and Molecular Biology, Faculty of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Behnaz Hammami
- Department of Genetics and Molecular Biology, Faculty of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Mohammad Kazemi
- Department of Genetics and Molecular Biology, Faculty of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran.
- Reproductive Sciences and Sexual Health Research Center, Isfahan University of Medical Sciences, Isfahan, Iran.
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2
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Ou N, Wang Y, Xu S, Luo J, Zhang C, Zhang Y, Shi X, Xiong M, Zhao L, Ji Z, Zhang Y, Zhao J, Bai H, Tian R, Li P, Zhi E, Huang Y, Chen W, Wang R, Jin Y, Wang D, Li Z, Chen H, Yao C. Primate-Specific DAZ Regulates Translation of Cell Proliferation-Related mRNAs and is Essential for Maintenance of Spermatogonia. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024:e2400692. [PMID: 38783578 DOI: 10.1002/advs.202400692] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2024] [Revised: 05/05/2024] [Indexed: 05/25/2024]
Abstract
Primate-specific DAZ (deleted in azoospermia) has evolved in the azoospermia factor c (AZFc) locus on the Y chromosome. Loss of DAZ is associated with azoospermia in patients with deletion of the AZFc region (AZFc_del). However, the molecular mechanisms of DAZ in spermatogenesis remain uncertain. In this study, the molecular mechanism of DAZ is identified, which is unknown since it is identified 40 years ago because of the lack of a suitable model. Using clinical samples and cell models, it is shown that DAZ plays an important role in spermatogenesis and that loss of DAZ is associated with defective proliferation of c-KIT-positive spermatogonia in patients with AZFc_del. Mechanistically, it is shown that knockdown of DAZ significantly downregulated global translation and subsequently decreased cell proliferation. Furthermore, DAZ interacted with PABPC1 via the DAZ repeat domain to regulate global translation. DAZ targeted mRNAs that are involved in cell proliferation and cell cycle phase transition. These findings indicate that DAZ is a master translational regulator and essential for the maintenance of spermatogonia. Loss of DAZ may result in defective proliferation of c-KIT-positive spermatogonia and spermatogenic failure.
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Affiliation(s)
- Ningjing Ou
- Department of Andrology, Center for Men's Health, Urologic Medical Center, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
- Department of Urology, Department of Interventional Medicine, Guangdong Provincial Key Laboratory of Biomedical Imaging, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, Guangdong, 519000, China
- Department of Human Cell Biology and Genetics, Joint Laboratory of Guangdong & Hong Kong Universities for Vascular Homeostasis and Diseases, School of Medicine, Southern University of Science and Technology, Shenzhen, Guangdong, 518000, China
| | - Yuci Wang
- Department of Human Cell Biology and Genetics, Joint Laboratory of Guangdong & Hong Kong Universities for Vascular Homeostasis and Diseases, School of Medicine, Southern University of Science and Technology, Shenzhen, Guangdong, 518000, China
| | - Shuai Xu
- Department of Andrology, Center for Men's Health, Urologic Medical Center, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
| | - Jiaqiang Luo
- Department of Andrology, Center for Men's Health, Urologic Medical Center, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
| | - Chenwang Zhang
- Department of Andrology, Center for Men's Health, Urologic Medical Center, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
| | - Yangyi Zhang
- Department of Human Cell Biology and Genetics, Joint Laboratory of Guangdong & Hong Kong Universities for Vascular Homeostasis and Diseases, School of Medicine, Southern University of Science and Technology, Shenzhen, Guangdong, 518000, China
| | - Xiaoyan Shi
- Department of Human Cell Biology and Genetics, Joint Laboratory of Guangdong & Hong Kong Universities for Vascular Homeostasis and Diseases, School of Medicine, Southern University of Science and Technology, Shenzhen, Guangdong, 518000, China
| | - Minggang Xiong
- Department of Human Cell Biology and Genetics, Joint Laboratory of Guangdong & Hong Kong Universities for Vascular Homeostasis and Diseases, School of Medicine, Southern University of Science and Technology, Shenzhen, Guangdong, 518000, China
| | - Liangyu Zhao
- Department of Urology, Department of Interventional Medicine, Guangdong Provincial Key Laboratory of Biomedical Imaging, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, Guangdong, 519000, China
| | - Zhiyong Ji
- Department of Andrology, Center for Men's Health, Urologic Medical Center, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
| | - Yuxiang Zhang
- Department of Andrology, Center for Men's Health, Urologic Medical Center, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
| | - Jingpeng Zhao
- Department of Andrology, Center for Men's Health, Urologic Medical Center, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
| | - Haowei Bai
- Department of Andrology, Center for Men's Health, Urologic Medical Center, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
| | - Ruhui Tian
- Department of Andrology, Center for Men's Health, Urologic Medical Center, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
| | - Peng Li
- Department of Andrology, Center for Men's Health, Urologic Medical Center, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
| | - Erlei Zhi
- Department of Andrology, Center for Men's Health, Urologic Medical Center, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
| | - Yuhua Huang
- Department of Andrology, Center for Men's Health, Urologic Medical Center, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
| | - Wei Chen
- Department of Andrology, Center for Men's Health, Urologic Medical Center, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
| | - Ruiqi Wang
- Department of Human Cell Biology and Genetics, Joint Laboratory of Guangdong & Hong Kong Universities for Vascular Homeostasis and Diseases, School of Medicine, Southern University of Science and Technology, Shenzhen, Guangdong, 518000, China
| | - Yuxuan Jin
- Department of Human Cell Biology and Genetics, Joint Laboratory of Guangdong & Hong Kong Universities for Vascular Homeostasis and Diseases, School of Medicine, Southern University of Science and Technology, Shenzhen, Guangdong, 518000, China
| | - Dian Wang
- Department of Human Cell Biology and Genetics, Joint Laboratory of Guangdong & Hong Kong Universities for Vascular Homeostasis and Diseases, School of Medicine, Southern University of Science and Technology, Shenzhen, Guangdong, 518000, China
| | - Zheng Li
- Department of Andrology, Center for Men's Health, Urologic Medical Center, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
| | - Hao Chen
- Department of Human Cell Biology and Genetics, Joint Laboratory of Guangdong & Hong Kong Universities for Vascular Homeostasis and Diseases, School of Medicine, Southern University of Science and Technology, Shenzhen, Guangdong, 518000, China
| | - Chencheng Yao
- Department of Andrology, Center for Men's Health, Urologic Medical Center, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
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Wilson CA, Batzel P, Postlethwait JH. Direct male development in chromosomally ZZ zebrafish. Front Cell Dev Biol 2024; 12:1362228. [PMID: 38529407 PMCID: PMC10961373 DOI: 10.3389/fcell.2024.1362228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2023] [Accepted: 02/20/2024] [Indexed: 03/27/2024] Open
Abstract
The genetics of sex determination varies across taxa, sometimes even within a species. Major domesticated strains of zebrafish (Danio rerio), including AB and TU, lack a strong genetic sex determining locus, but strains more recently derived from nature, like Nadia (NA), possess a ZZ male/ZW female chromosomal sex-determination system. AB fish pass through a juvenile ovary stage, forming oocytes that survive in fish that become females but die in fish that become males. To understand mechanisms of gonad development in NA zebrafish, we studied histology and single cell transcriptomics in developing ZZ and ZW fish. ZW fish developed oocytes by 22 days post-fertilization (dpf) but ZZ fish directly formed testes, avoiding a juvenile ovary phase. Gonads of some ZW and WW fish, however, developed oocytes that died as the gonad became a testis, mimicking AB fish, suggesting that the gynogenetically derived AB strain is chromosomally WW. Single-cell RNA-seq of 19dpf gonads showed similar cell types in ZZ and ZW fish, including germ cells, precursors of gonadal support cells, steroidogenic cells, interstitial/stromal cells, and immune cells, consistent with a bipotential juvenile gonad. In contrast, scRNA-seq of 30dpf gonads revealed that cells in ZZ gonads had transcriptomes characteristic of testicular Sertoli, Leydig, and germ cells while ZW gonads had granulosa cells, theca cells, and developing oocytes. Hematopoietic and vascular cells were similar in both sex genotypes. These results show that juvenile NA zebrafish initially develop a bipotential gonad; that a factor on the NA W chromosome, or fewer than two Z chromosomes, is essential to initiate oocyte development; and without the W factor, or with two Z doses, NA gonads develop directly into testes without passing through the juvenile ovary stage. Sex determination in AB and TU strains mimics NA ZW and WW zebrafish, suggesting loss of the Z chromosome during domestication. Genetic analysis of the NA strain will facilitate our understanding of the evolution of sex determination mechanisms.
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4
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Hekimoglu ER, Esrefoglu M, Karakaya Cimen FB, Elibol B, Dedeakayogullari H, Pasin Ö. Beneficial effects of adipose-derived stromal vascular fraction on testicular injury caused by busulfan. Drug Chem Toxicol 2024:1-15. [PMID: 38465409 DOI: 10.1080/01480545.2024.2324332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Accepted: 02/23/2024] [Indexed: 03/12/2024]
Abstract
The use of stem cells can attenuate testicular injury and promote sperm production. The adipose-derived stromal vascular fraction (SVF) has become an attractive cell source for cell-based therapies. In this study, we aimed to investigate the therapeutic efficacy of SVF on busulfan-induced testicular damage in rats. Twenty-four male rats were randomly divided into control, busulfan, SVF, and busulfan + SVF groups. Testicular damage was induced by intraperitoneal administration of busulfan (35 mg/kg). SVF obtained from human adipose tissue using Lipocube SVF™ was injected into rats 5 weeks after busulfan administration. At the end of the 8th week, rats were sacrificed, and histopathological, biochemical, and western blotting analyses were performed. No harmful effects of SVF on healthy testis tissue and sperm parameters were detected. SVF improved busulfan-induced oxidative stress in both testis tissue and serum. SVF injection to damaged testicular tissue resulted in increases in the healthy spermatozoon numbers and decreases in the abnormal tail numbers. Additionally, SVF increased bax/Bcl, DAZL, and TGF-β1 levels whereas decreased ATG5 and NF-kB levels. According to the results we obtained in this study, we suggest that SVF is beneficial in restoring damaged tissue by primarily being a multipotent cell source, by inhibiting oxidative stress and converting necrotic cell death to apoptotic cell death. In the future, clinical applications should bring higher benefits. Since SVF is the patient's own tissue, being harmless, it will offer an advantageous supportive treatment option for patients already weakened by cancer and anticancer therapy.
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Affiliation(s)
- E Rumeysa Hekimoglu
- Department of Histology and Embryology, Faculty of Medicine, Bezmialem Vakıf University, Istanbul, Turkey
| | - Mukaddes Esrefoglu
- Department of Histology and Embryology, Faculty of Medicine, Bezmialem Vakıf University, Istanbul, Turkey
| | - Fatma Bedia Karakaya Cimen
- Department of Histology and Embryology, Faculty of Medicine, Bezmialem Vakıf University, Istanbul, Turkey
| | - Birsen Elibol
- Department of Medical Biology, Faculty of Medicine, Istanbul Medeniyet University, Istanbul, Turkey
| | - Huri Dedeakayogullari
- Department of Medical Biochemistry, Faculty of Medicine, Istinye University, Istanbul, Turkey
| | - Özge Pasin
- Department of Biostatistics, Faculty of Medicine, Bezmialem Vakif University, Istanbul, Turkey
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5
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Wilson CA, Batzel P, Postlethwait JH. Direct Male Development in Chromosomally ZZ Zebrafish. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.12.27.573483. [PMID: 38234788 PMCID: PMC10793451 DOI: 10.1101/2023.12.27.573483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2024]
Abstract
The genetics of sex determination varies across taxa, sometimes even within a species. Major domesticated strains of zebrafish ( Danio rerio ), including AB and TU, lack a strong genetic sex determining locus, but strains more recently derived from nature, like Nadia (NA), possess a ZZ male/ZW female chromosomal sex-determination system. AB strain fish pass through a juvenile ovary stage, forming oocytes that survive in fish that become females but die in fish that become males. To understand mechanisms of gonad development in NA zebrafish, we studied histology and single cell transcriptomics in developing ZZ and ZW fish. ZW fish developed oocytes by 22 days post-fertilization (dpf) but ZZ fish directly formed testes, avoiding a juvenile ovary phase. Gonads of some ZW and WW fish, however, developed oocytes that died as the gonad became a testis, mimicking AB fish, suggesting that the gynogenetically derived AB strain is chromosomally WW. Single-cell RNA-seq of 19dpf gonads showed similar cell types in ZZ and ZW fish, including germ cells, precursors of gonadal support cells, steroidogenic cells, interstitial/stromal cells, and immune cells, consistent with a bipotential juvenile gonad. In contrast, scRNA-seq of 30dpf gonads revealed that cells in ZZ gonads had transcriptomes characteristic of testicular Sertoli, Leydig, and germ cells while ZW gonads had granulosa cells, theca cells, and developing oocytes. Hematopoietic and vascular cells were similar in both sex genotypes. These results show that juvenile NA zebrafish initially develop a bipotential gonad; that a factor on the NA W chromosome or fewer than two Z chromosomes is essential to initiate oocyte development; and without the W factor or with two Z doses, NA gonads develop directly into testes without passing through the juvenile ovary stage. Sex determination in AB and TU strains mimics NA ZW and WW zebrafish, suggesting loss of the Z chromosome during domestication. Genetic analysis of the NA strain will facilitate our understanding of the evolution of sex determination mechanisms.
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6
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Tang Y, Zhang B, Shi H, Yan Z, Wang P, Yang Q, Huang X, Li J, Wang Z, Gun S. Cloning, expression analysis and localization of DAZL gene implicated in germ cell development of male Hezuo pig. Anim Biotechnol 2023; 34:4000-4014. [PMID: 37671929 DOI: 10.1080/10495398.2023.2249953] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/07/2023]
Abstract
Deleted in azoospermia-like (DAZL) is essential for mammalian testicular function and spermatogenesis. To explore the molecular characterization, expression patterns, and cellular localization of the DAZL in Hezuo pig testes, testicular tissue was isolated from Hezuo pig at five development stages including 30 days old (30 d), 90 days old (90 d), 120 days old (120 d), 180 days old (180 d), and 240 days old (240 d). DAZL cDNA was first cloned using the RT-PCR method, and its molecular characterization was analyzed using relevant bioinformatics software. Subsequently, the expression patterns and cellular localization of DAZL were evaluated using quantitative real-time PCR (qRT-PCR), Western blot, and immunohistochemistry. The cloning and sequence analysis showed that the Hezuo pig DAZL cDNA fragment contained 888 bp open reading frame (ORF) capable of encoding 295 amino acid residues and exhibited high identities with some other mammals. The qRT-PCR and Western blot results indicated that DAZL was specifically expressed in Hezuo pig testes, and DAZL levels of both mRNA and protein were expressed at all five reproductive stages of Hezuo pig testes, with extremely significant higher expression levels in 90 d, 120 d, 180 d, and 240 d than those in 30 d (p < 0.01). Additionally, immunohistochemistry results revealed that DAZL protein was mainly localized in gonocytes at 30 d testes, primary spermatocytes, and spermatozoon at other developmental stages, and Leydig cells throughout five development stages. Together, these results suggested that DAZL may play an important role by regulating the proliferation or differentiation of gonocytes, development of primary spermatocytes and spermatozoon, and functional maintenance of Leydig cells in testicular development and spermatogenesis of Hezuo pig. Nevertheless, the specific regulatory mechanisms underlying these phenomena still requires further investigated and verified.
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Affiliation(s)
- Yuran Tang
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, China
| | - Bo Zhang
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, China
| | - Haixia Shi
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, China
| | - Zunqiang Yan
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, China
| | - Pengfei Wang
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, China
| | - Qiaoli Yang
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, China
| | - Xiaoyu Huang
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, China
| | - Jiyou Li
- Gansu General Station of Animal Husbandry Technology Extension, Lanzhou, China
| | - Zike Wang
- Gansu General Station of Animal Husbandry Technology Extension, Lanzhou, China
| | - Shuangbao Gun
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, China
- Gansu Research Center for Swine Production Engineering and Technology, Lanzhou, China
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7
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Lara NLM, Goldsmith T, Rodriguez-Villamil P, Ongaratto F, Solin S, Webster D, Ganbaatar U, Hodgson S, Corbière SMAS, Bondareva A, Carlson DF, Dobrinski I. DAZL Knockout Pigs as Recipients for Spermatogonial Stem Cell Transplantation. Cells 2023; 12:2582. [PMID: 37947660 PMCID: PMC10649044 DOI: 10.3390/cells12212582] [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: 09/21/2023] [Revised: 10/28/2023] [Accepted: 10/31/2023] [Indexed: 11/12/2023] Open
Abstract
Spermatogonial stem cell (SSC) transplantation into the testis of a germ cell (GC)-depleted surrogate allows transmission of donor genotype via donor-derived sperm produced by the recipient. Transplantation of gene-edited SSCs provides an approach to propagate gene-edited large animal models. DAZL is a conserved RNA-binding protein important for GC development, and DAZL knockout (KO) causes defects in GC commitment and differentiation. We characterized DAZL-KO pigs as SSC transplantation recipients. While there were GCs in 1-week-old (wko) KO, complete GC depletion was observed by 10 wko. Donor GCs were transplanted into 18 DAZL-KO recipients at 10-13 wko. At sexual maturity, semen and testes were evaluated for transplantation efficiency and spermatogenesis. Approximately 22% of recipient seminiferous tubules contained GCs, including elongated spermatids and proliferating spermatogonia. The ejaculate of 89% of recipients contained sperm, exclusively from donor origin. However, sperm concentration was lower than the wild-type range. Testicular protein expression and serum hormonal levels were comparable between DAZL-KO and wild-type. Intratesticular testosterone and Leydig cell volume were increased, and Leydig cell number decreased in transplanted DAZL-KO testis compared to wild-type. In summary, DAZL-KO pigs support donor-derived spermatogenesis following SSC transplantation, but low spermatogenic efficiency currently limits their use for the production of offspring.
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Affiliation(s)
- Nathalia L. M. Lara
- Faculty of Veterinary Medicine, University of Calgary, Calgary, AB T2N4N1, Canada; (N.L.M.L.); (A.B.)
| | - Taylor Goldsmith
- Recombinetics, Inc., St. Paul, MN 55121, USA; (T.G.); (D.W.); (S.H.); (S.M.A.S.C.); (D.F.C.)
| | | | - Felipe Ongaratto
- Recombinetics, Inc., St. Paul, MN 55121, USA; (T.G.); (D.W.); (S.H.); (S.M.A.S.C.); (D.F.C.)
| | - Staci Solin
- Recombinetics, Inc., St. Paul, MN 55121, USA; (T.G.); (D.W.); (S.H.); (S.M.A.S.C.); (D.F.C.)
| | - Dennis Webster
- Recombinetics, Inc., St. Paul, MN 55121, USA; (T.G.); (D.W.); (S.H.); (S.M.A.S.C.); (D.F.C.)
| | - Uyanga Ganbaatar
- Recombinetics, Inc., St. Paul, MN 55121, USA; (T.G.); (D.W.); (S.H.); (S.M.A.S.C.); (D.F.C.)
| | - Shane Hodgson
- Recombinetics, Inc., St. Paul, MN 55121, USA; (T.G.); (D.W.); (S.H.); (S.M.A.S.C.); (D.F.C.)
| | | | - Alla Bondareva
- Faculty of Veterinary Medicine, University of Calgary, Calgary, AB T2N4N1, Canada; (N.L.M.L.); (A.B.)
| | - Daniel F. Carlson
- Recombinetics, Inc., St. Paul, MN 55121, USA; (T.G.); (D.W.); (S.H.); (S.M.A.S.C.); (D.F.C.)
| | - Ina Dobrinski
- Faculty of Veterinary Medicine, University of Calgary, Calgary, AB T2N4N1, Canada; (N.L.M.L.); (A.B.)
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The Trinh S, Nguyen NN, Thi Thu Le H, Thi My Pham H, Tien Trieu S, Tran NTM, Sy Ho H, Van Tran D, Van Trinh T, Trong Hoang Nguyen H, Pham Minh N, Duc Dang T, Huu Dinh V, Thi Doan H. Screening Y Chromosome Microdeletion in 1121 Men with Low Sperm Concentration and the Outcomes of Microdissection Testicular Sperm Extraction (mTESE) for Sperm Retrieval from Azoospermic Patients. Appl Clin Genet 2023; 16:155-164. [PMID: 37663123 PMCID: PMC10473397 DOI: 10.2147/tacg.s420030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Accepted: 08/04/2023] [Indexed: 09/05/2023] Open
Abstract
Background The Y chromosome has a specific region, namely the Azoospermia Factor (AZF) because azoospermia is typically reported in the microdeletion of the AZF region. This study aims to assess the characteristics of AZF microdeletion after screening a massive number of low sperm concentration men; and the Microdissection testicular sperm extraction (mTESE) outcomes for retrieving sperm from azoospermic patients. Materials and Methods This retrospective multiple-center study enrolled a total of 1121 men with azoospermia, cryptozoospermia, and severe oligozoospermia from December 2016 to June 2022. An extension analysis used a total of 17 STSs to detect the position-occurring microdeletion in the AZF region (AZFa, b, c, and/or d loci). Microdissection testicular sperm extraction (mTESE) was performed to retrieve sperm in azoospermic men diagnosed AZFc microdeletion. Results One hundred and fifty-three men carried AZF microdeletion were detected in the 1121 participants (13.64%). The incidences of AZF microdeletion were confined to AZF a, c, and d regions, both individual and concurrence, with the most common in the AZFc region accounting for 49.67%; There was no significant difference in clinical and paraclinical characteristics between the deleted regions, except FSH level (highest in AZFa microdeletion, p = 0.043). The AZFc region was the most common type of AZF microdeletion (49.67%), including complete microdeletion (4 patients) and gr/gr partial microdeletion (39 patients) with 50.00% and 63.63% in the success rate of mTESE, separately. Conclusion The absence of AZFa and/or AZFb regions often express the most severe phenotype - azoospermia and the increasing FSH level. The AZFc region played the most common microdeletion. Microdissection testicular sperm extraction (mTESE) was the possible therapy for sperm retrieval from the testis of azoospermia men having AZFc microdeletion.
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Affiliation(s)
- Son The Trinh
- Military Institute of Clinical Embryology and Histology, Vietnam Military Medical University, Hanoi, Vietnam
| | - Nhat Ngoc Nguyen
- Military Institute of Clinical Embryology and Histology, Vietnam Military Medical University, Hanoi, Vietnam
| | - Hien Thi Thu Le
- Department of Andrology, Andrology and Fertility Hospital of Hanoi, Hanoi, Vietnam
| | - Hanh Thi My Pham
- Department of Andrology, Andrology and Fertility Hospital of Hanoi, Hanoi, Vietnam
| | - Sang Tien Trieu
- Department of Biology and Genetics, Vietnam Military Medical University, Hanoi, Vietnam
| | - Ngoc Thao My Tran
- Department of Life Sciences, Biosciences Division, College of Health, Medicine and Life Sciences, Brunel University London, Uxbridge, UK
| | - Hung Sy Ho
- Department of Obstetrics and Gynecology, Hanoi Medical University, Hanoi, Vietnam
| | - Danh Van Tran
- Respiratory Center, Military Hospital 103, Vietnam Military Medical University, Hanoi, Vietnam
| | - Tam Van Trinh
- Department of Andrology, Andrology and Fertility Hospital of Hanoi, Hanoi, Vietnam
| | | | - Ngoc Pham Minh
- Department of Andrology, Andrology and Fertility Hospital of Hanoi, Hanoi, Vietnam
| | - Trinh Duc Dang
- Faculty of Mathematics and Computer Science, Vietnam Military Medical University, Hanoi, Vietnam
| | - Viet Huu Dinh
- Department of Andrology, Andrology and Fertility Hospital of Hanoi, Hanoi, Vietnam
| | - Hang Thi Doan
- Military Institute of Clinical Embryology and Histology, Vietnam Military Medical University, Hanoi, Vietnam
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Talotta R. COVID-19 mRNA vaccines as hypothetical epigenetic players: Results from an in silico analysis, considerations and perspectives. Vaccine 2023; 41:5182-5194. [PMID: 37453842 DOI: 10.1016/j.vaccine.2023.07.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Revised: 07/06/2023] [Accepted: 07/06/2023] [Indexed: 07/18/2023]
Abstract
OBJECTIVES To investigate in silico the occurrence of epigenetic crosstalk by nucleotide sequence complementarity between the BNT162b2 mRNA vaccine and whole human genome, including coding and noncoding (nc)RNA genes. To correlate these results with those obtained with the original spike (S) gene of Severe Acute Respiratory Syndrome CoronaVirus-2 (SARS-CoV-2). METHODS The publicly available FASTA sequence of the BNT162b2 mRNA vaccine and the SARS-CoV-2 isolate Wuhan-Hu-1 S gene (NC_045512.2) were used separately as key input to the Ensembl.org library to evaluate base pair match to human GRCh38 genome. Human coding and noncoding genes harboring hits were assessed for functional activity and health effects using bioinformatics tools and GWAS databases. RESULTS The BLAT analysis against the human GRCh38 genome revealed a total of 37 hits for BNT162b2 mRNA and no hits for the SARS-CoV-2 S gene. More specifically, BNT162b2 mRNA matched 19 human genes whose protein products are variously involved in enzyme reactions, nucleotide or cation binding, signaling, and carrier functions. In BLASTN analysis of ncRNA genes, BNT162b2 mRNA and SARS-CoV-2 S gene matched 17 and 24 different human genomic regions, respectively. Overall, characterization of the matched noncoding sequences revealed stronger interference with epigenetic pathways for BNT162b2 mRNA compared with the original S gene. CONCLUSION This pivotal in silico analysis shows that SARS-CoV-2 S gene and the BNT162b2 mRNA vaccine exhibit Watson-Crick nucleotide complementarity with human coding or noncoding genes. Although they do not share the same complementarity pattern, both may disrupt epigenetic mechanisms in target cells, potentially leading to long-term complications.
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Affiliation(s)
- Rossella Talotta
- Department of Clinical and Experimental Medicine, Rheumatology Unit, AOU "Gaetano Martino", University of Messina, Messina, Italy.
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10
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Jiang Y, Adhikari D, Li C, Zhou X. Spatiotemporal regulation of maternal mRNAs during vertebrate oocyte meiotic maturation. Biol Rev Camb Philos Soc 2023; 98:900-930. [PMID: 36718948 DOI: 10.1111/brv.12937] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Revised: 01/15/2023] [Accepted: 01/17/2023] [Indexed: 02/01/2023]
Abstract
Vertebrate oocytes face a particular challenge concerning the regulation of gene expression during meiotic maturation. Global transcription becomes quiescent in fully grown oocytes, remains halted throughout maturation and fertilization, and only resumes upon embryonic genome activation. Hence, the oocyte meiotic maturation process is largely regulated by protein synthesis from pre-existing maternal messenger RNAs (mRNAs) that are transcribed and stored during oocyte growth. Rapidly developing genome-wide techniques have greatly expanded our insights into the global translation changes and possible regulatory mechanisms during oocyte maturation. The storage, translation, and processing of maternal mRNAs are thought to be regulated by factors interacting with elements in the mRNA molecules. Additionally, posttranscriptional modifications of mRNAs, such as methylation and uridylation, have recently been demonstrated to play crucial roles in maternal mRNA destabilization. However, a comprehensive understanding of the machineries that regulate maternal mRNA fate during oocyte maturation is still lacking. In particular, how the transcripts of important cell cycle components are stabilized, recruited at the appropriate time for translation, and eliminated to modulate oocyte meiotic progression remains unclear. A better understanding of these mechanisms will provide invaluable insights for the preconditions of developmental competence acquisition, with important implications for the treatment of infertility. This review discusses how the storage, localization, translation, and processing of oocyte mRNAs are regulated, and how these contribute to oocyte maturation progression.
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Affiliation(s)
- Yanwen Jiang
- College of Animal Science, Jilin University, 5333 Xian Road, Changchun, 130062, China
| | - Deepak Adhikari
- Department of Anatomy and Developmental Biology, Monash Biomedicine Discovery Institute, Monash University, 19 Innovation Walk, Melbourne, VIC, 3800, Australia
| | - Chunjin Li
- College of Animal Science, Jilin University, 5333 Xian Road, Changchun, 130062, China
| | - Xu Zhou
- College of Animal Science, Jilin University, 5333 Xian Road, Changchun, 130062, China
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11
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Zhong D, Yao C, Zhang L, Wang J, Liu Q, Shi D, Jiang M, Li H. Comprehensive analysis of long non-coding RNA expression profiles of GC-1spg cells with m6A methylation knockdown. Gene 2023; 871:147430. [PMID: 37062454 DOI: 10.1016/j.gene.2023.147430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Revised: 03/28/2023] [Accepted: 04/11/2023] [Indexed: 04/18/2023]
Abstract
Spermatogenesis is a complex process that requires many regulatory mechanisms to form healthy sperm. Numerous studies have also proved that m6A methylation modification and lncRNA are essential for normal spermatogenesis. However, the mutual regulation of m6A methylation and lncRNA in spermatogenesis is still unclear. In this study, we knocked down METTL3 in GC-1spg cells and found that a reduction in METTL3 increased cell proliferation. Further, we examined the lncRNA expression profiles of normal spermatogonia and spermatogonia with knocked down METTL3. We detected 30,924 lncRNAs, of which 34 were up-regulated and 77 down-regulated. The results of the MeRIP-qPCR experiment showed that ENSMUST00000186472, MSTRG.8019.3 and ENSMUST00000202148 had m6A methylation sites and were regulated by METTL3. We constructed ceRNA networks for these 3 lncRNAs. And we identified that these 3 lncRNAs might act as miRNA sponges to regulate some genes related to spermatogenesis. This study focuses on exploring the regulatory mechanisms of m6A methylation on lncRNAs in spermatogonia and provides some epigenetic theories for subsequent studies on the expression mechanisms of lncRNAs.
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Affiliation(s)
- Dandan Zhong
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Animal Science and Technology, Guangxi University, Nanning 530004, China
| | - Chengxuan Yao
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Animal Science and Technology, Guangxi University, Nanning 530004, China
| | - Liyin Zhang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Animal Science and Technology, Guangxi University, Nanning 530004, China
| | - Jian Wang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Animal Science and Technology, Guangxi University, Nanning 530004, China
| | - Qingyou Liu
- Guangdong Provincial Key Laboratory of Animal Molecular Design and Precise Breeding, School of Life Science and Engineering, Foshan University, Foshan, 528225, China
| | - Deshun Shi
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Animal Science and Technology, Guangxi University, Nanning 530004, China
| | - Mingsheng Jiang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Animal Science and Technology, Guangxi University, Nanning 530004, China.
| | - Hui Li
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Animal Science and Technology, Guangxi University, Nanning 530004, China.
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Nongthombam PD, Malini SS. Association of DAZL polymorphisms and DAZ deletion with male infertility: a systematic review and meta-analysis. Genes Genomics 2022; 45:709-722. [PMID: 36434389 DOI: 10.1007/s13258-022-01345-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Accepted: 11/09/2022] [Indexed: 11/27/2022]
Abstract
BACKGROUND Various populations have been investigated for the occurrence of two key DAZL polymorphisms, 260A > G (rs11710967) and 386A > G (rs121918346), as well as complete DAZ cluster deletion, with conflicting results. OBJECTIVE The purpose of the current meta-analysis was to investigate if there is an association between DAZL polymorphisms and complete deletion of the DAZ cluster gene with male infertility. METHODS Up until September 2022, a thorough search was conducted in the Pubmed and Google scholar databases. For 260A > G polymorphism, 8 studies with 2077 cases and 1398 controls, 13 studies for 386A > G polymorphism (4343 cases and 3727 controls) and 17 studies of DAZ deletion (2820 cases and 1589 controls) were included in the pooled analysis. All of the studies were statistically analysed by Review Manager 5.4, and publication bias was evaluated with JASP 0.16.2.0 software utilising funnel plots and Egger's linear regression test. RESULTS The meta analysis result for pooled data indicated no association between 260A > G and 386A > G polymorphisms and male infertility in any of the genetic models or ethnicities. However, there was a definite correlation between complete deletion of the DAZ gene cluster and male infertility, with an OR = 13.23, 95% confidence interval (6.63-26.39), and p < 0.00001. In the stratified analysis by ethnicity, Caucasians and Asian ethnic groups showed the similar relationship. CONCLUSION In order to arrive at more definitive conclusions, further study should be conducted, including studies from a larger range of nations and nationalities.
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Farini D, De Felici M. The Beginning of Meiosis in Mammalian Female Germ Cells: A Never-Ending Story of Intrinsic and Extrinsic Factors. Int J Mol Sci 2022; 23:ijms232012571. [PMID: 36293427 PMCID: PMC9604137 DOI: 10.3390/ijms232012571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Revised: 10/06/2022] [Accepted: 10/18/2022] [Indexed: 11/16/2022] Open
Abstract
Meiosis is the unique division of germ cells resulting in the recombination of the maternal and paternal genomes and the production of haploid gametes. In mammals, it begins during the fetal life in females and during puberty in males. In both cases, entering meiosis requires a timely switch from the mitotic to the meiotic cell cycle and the transition from a potential pluripotent status to meiotic differentiation. Revealing the molecular mechanisms underlying these interrelated processes represents the essence in understanding the beginning of meiosis. Meiosis facilitates diversity across individuals and acts as a fundamental driver of evolution. Major differences between sexes and among species complicate the understanding of how meiosis begins. Basic meiotic research is further hindered by a current lack of meiotic cell lines. This has been recently partly overcome with the use of primordial-germ-cell-like cells (PGCLCs) generated from pluripotent stem cells. Much of what we know about this process depends on data from model organisms, namely, the mouse; in mice, the process, however, appears to differ in many aspects from that in humans. Identifying the mechanisms and molecules controlling germ cells to enter meiosis has represented and still represents a major challenge for reproductive medicine. In fact, the proper execution of meiosis is essential for fertility, for maintaining the integrity of the genome, and for ensuring the normal development of the offspring. The main clinical consequences of meiotic defects are infertility and, probably, increased susceptibility to some types of germ-cell tumors. In the present work, we report and discuss data mainly concerning the beginning of meiosis in mammalian female germ cells, referring to such process in males only when pertinent. After a brief account of this process in mice and humans and an historical chronicle of the major hypotheses and progress in this topic, the most recent results are reviewed and discussed.
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Ghadirkhomi E, Abdolhamid Angaji S, Beikzadeh B, Mashayekhi MR, Ghadirkhomi A. Correlation of Single Nucleotide Polymorphisms of PRM1, PRM2, PYGO2, and DAZL Genes with Male Infertility in North West of Iran. Turk J Urol 2022; 48:315-321. [PMID: 36197138 PMCID: PMC9623339 DOI: 10.5152/tud.2022.22032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
OBJECTIVE Almost half of infertility is related to male factors. Although the effect of genetic factors on male infertility is identified, about 30%-50% still has no proven cause and is classified as idiopathic infertility. This study was performed to investigate the correlation of some single nucleotide polymorphisms of PYGO2, DAZL, PRM1, and PRM2 genes with male infertility in idiopathic cases among the Iranian population. MATERIAL AND METHODS In this case-control study, 120 idiopathic azoospermia or severe oligospermia patients in the range of 25-45 years and 120 fertile men in the same age range were recruited as case and control groups, respectively. Eight different single nucleotide polymorphisms including PRM1 rs737008, PRM1 rs423668, PRM2 rs1646022, PRM2 rs11645592, PYGO2 rs141722381, PYGO2rs61758741, DAZL rs75931701, and DAZL rs188506466 were genotyped by using ampli ficat ion-r efrac tory mutation system polymerase chain reaction methods. Hardy-Weinberg was calculated by using online website. Statistical Package for Social Sciences software was applied for statistical analysis. P value <.05 was considered significant. Thirty percent of the samples were regenotyped to confirm the obtained results. RESULTS The obtained results showed a significant correlation between PYGO2 rs141722381 in the heterozygote form (odds ratio: 2.803, 95% CI: 1.397-5.626). Heterozygote over-dominance was also observed in this variant (odds ratio: 2.637, 95%CI: 1.321-5.264). There was no significant association between other studied single nucleotide polymorphisms and male infertility. CONCLUSION This study proposed a novel single nucleotide polymorphism as a predisposition of male infertility among the Iranian population, but more studies in larger populations are needed to confirm the results.
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Affiliation(s)
- Elham Ghadirkhomi
- Clinical Research Development Unit of Tabriz Valiasr Hospital, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Seyed Abdolhamid Angaji
- Department of Cell and Molecular Biology, Kharazmi University Faculty of Biological Sciences, Tehran, Iran,Corresponding author:Seyed Abdolhamid AngajiE-mail:
| | - Behnaz Beikzadeh
- Department of Molecular Genetics, Tarbiat Modares University Faculty of Biological Sciences, Tehran, Iran
| | - Mohammad-Reza Mashayekhi
- Department of Genetics, Tabriz Branch, Islamic Azad University Faculty of Biological Science, Tabriz, Iran
| | - Akram Ghadirkhomi
- Food and Drug Administrator, University of Medical Sciences, Isfahan, Iran
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15
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Wu X, Zhou L, Shi J, Cheng CY, Sun F. Multiomics analysis of male infertility. Biol Reprod 2022; 107:118-134. [PMID: 35639635 DOI: 10.1093/biolre/ioac109] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Revised: 04/12/2022] [Accepted: 05/17/2022] [Indexed: 11/14/2022] Open
Abstract
Infertility affects 8-12% of couples globally, and the male factor is a primary cause in approximately 50% of couples. Male infertility is a multifactorial reproductive disorder, which can be caused by paracrine and autocrine factors, hormones, genes, and epigenetic changes. Recent studies in rodents and most notably in humans using multiomics approach have yielded important insights into understanding the biology of spermatogenesis. Nonetheless, the etiology and pathogenesis of male infertility are still largely unknown. In this review, we summarized and critically evaluated findings based on the use of advanced technologies to compare normal and obstructive azoospermia (OA) versus non-obstructive azoospermia (NOA) men, including whole-genome bisulfite sequencing (WGBS), single cell RNA-seq (scRNA-seq), whole exome sequencing (WES), and ATAC-seq. It is obvious that the multiomics approach is the method of choice for basic research and clinical studies including clinical diagnosis of male infertility.
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Affiliation(s)
- Xiaolong Wu
- Department of Urology & Andrology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310016, China.,Institute of Reproductive Medicine, Nantong University School of Medicine, Nantong, Jiangsu 226001, China
| | - Liwei Zhou
- Institute of Reproductive Medicine, Nantong University School of Medicine, Nantong, Jiangsu 226001, China
| | - Jie Shi
- Institute of Reproductive Medicine, Nantong University School of Medicine, Nantong, Jiangsu 226001, China
| | - C Yan Cheng
- Department of Urology & Andrology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310016, China.,Institute of Reproductive Medicine, Nantong University School of Medicine, Nantong, Jiangsu 226001, China
| | - Fei Sun
- Department of Urology & Andrology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310016, China.,Institute of Reproductive Medicine, Nantong University School of Medicine, Nantong, Jiangsu 226001, China
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16
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Bonefas KM, Iwase S. Soma-to-germline transformation in chromatin-linked neurodevelopmental disorders? FEBS J 2022; 289:2301-2317. [PMID: 34514717 PMCID: PMC8918023 DOI: 10.1111/febs.16196] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 08/16/2021] [Accepted: 09/10/2021] [Indexed: 01/22/2023]
Abstract
Mutations in numerous chromatin regulators cause neurodevelopmental disorders (NDDs) with unknown mechanisms. Understandably, most research has focused on how chromatin regulators control gene expression that is directly relevant to brain development and function, such as synaptic genes. However, some NDD models surprisingly show ectopic expression of germline genes in the brain. These germline genes are usually expressed only in the primordial germ cells, testis, and ovaries for germ cell development and sexual reproduction. Such ectopic germline gene expression has been reported in several NDDs, including immunodeficiency, centromeric instability, facial anomalies syndrome 1; Kleefstra syndrome 1; MeCP2 duplication syndrome; and mental retardation, X-linked syndromic, Claes-Jensen type. The responsible genes, DNMT3B, G9A/GLP, MECP2, and KDM5C, all encode chromatin regulators for gene silencing. These mutations may therefore lead to germline gene derepression and, in turn, a severe identity crisis of brain cells-potentially interfering with normal brain development. Thus, the ectopic expression of germline genes is a unique hallmark defining this NDD subset and further implicates the importance of germline gene silencing during brain development. The functional impact of germline gene expression on brain development, however, remains undetermined. This perspective article explores how this apparent soma-to-germline transformation arises and how it may interfere with neurodevelopment through genomic instability and impaired sensory cilium formation. Furthermore, we also discuss how to test these hypotheses experimentally to ultimately determine the contribution of ectopic germline transcripts to chromatin-linked NDDs.
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Affiliation(s)
- Katherine M. Bonefas
- Department of Human Genetics, Michigan Medicine, University of Michigan, Ann Arbor, MI 48109,The University of Michigan Neuroscience Graduate Program,Corresponding authors: Please address correspondence to: , and
| | - Shigeki Iwase
- Department of Human Genetics, Michigan Medicine, University of Michigan, Ann Arbor, MI 48109,The University of Michigan Neuroscience Graduate Program,Corresponding authors: Please address correspondence to: , and
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17
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Lan KC, Wang HJ, Wang TJ, Lin HJ, Chang YC, Kang HY. Y-chromosome genes associated with sertoli cell-only syndrome identified by array comparative genome hybridization. Biomed J 2022; 46:100524. [PMID: 35358715 DOI: 10.1016/j.bj.2022.03.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2019] [Revised: 03/03/2022] [Accepted: 03/21/2022] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND The precise contribution of each chromosome gene or gene family in achieving male fertility is still the subject of debate. Most studies have examined male populations with heterogeneous causes of infertility, and have therefore reached controversial or uncertain conclusions. This study uses Y-chromosome array-based comparative genomic hybridization (aCGH) to examine a population of males with a uniform sertoli cell-only syndrome (SCOS) infertility phenotype. METHODS Initial analysis of gene copy number variations in 8 SCOS patients, with determination of the log-ratio of probe signal intensity against a DNA reference, was performed using the Y-chromosome NimbleGen aCGH. To confirm the role of candidate genes, real-time quantitative RT-PCR was used to compare 19 patients who had SCOS non-obstructive azoospermia with 15 patients who had obstructive azoospermia but normal spermatogenesis. RESULTS Our initial aCGH experiments identified CDY1a and CDY1b double deletions in all 8 patients who had total germ cell depletion. However, 5 patients had DAZ1/2 and DAZ3/4 deletions, 1 patient had a DAZ2 and DAZ3/4 deletion, and 2 patients had no DAZ1/2 or DAZ3/4 deletions. Examination of testicular mRNA expression in another 19 patients with SCOS indicated all patients had no detectable levels of CDY1. CONCLUSIONS Our findings indicate that CDY1 deletion in SCOS patients, and analysis of the expression of DAZ and CDY1 genes using aCGH and quantitative RT-PCR, may be useful to predict the presence of mature spermatozoa.
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Affiliation(s)
- Kuo-Chung Lan
- Department of Obstetrics and Gynecology, Chang Gung Memorial Hospital at Kaohsiung, Kaohsiung, Taiwan; Center for Menopause and Reproductive Medicine Research, Chang Gung Memorial Hospital at Kaohsiung, Kaohsiung, Taiwan; Department of Obstetrics and Gynecology, Jen-Ai Hospital, Taichung, Taiwan; College of Medicine, Chang Gung University, Taoyuan, Taiwan.
| | - Hung-Jen Wang
- Department of Urology, Chang Gung Memorial Hospital at Kaohsiung, Kaohsiung, Taiwan; College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Tzu-Jou Wang
- Department of Pediatrics, Chang Gung Memorial Hospital at Kaohsiung, Kaohsiung, Taiwan; College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Hsin-Jung Lin
- Center for Menopause and Reproductive Medicine Research, Chang Gung Memorial Hospital at Kaohsiung, Kaohsiung, Taiwan; College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Yung-Chiao Chang
- Center for Menopause and Reproductive Medicine Research, Chang Gung Memorial Hospital at Kaohsiung, Kaohsiung, Taiwan; College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Hong-Yo Kang
- Department of Obstetrics and Gynecology, Chang Gung Memorial Hospital at Kaohsiung, Kaohsiung, Taiwan; Center for Menopause and Reproductive Medicine Research, Chang Gung Memorial Hospital at Kaohsiung, Kaohsiung, Taiwan; College of Medicine, Chang Gung University, Taoyuan, Taiwan
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Wang Y, Ye W, Tian G, Zhang Y. Identification of a new RNA-binding proteins-based signature for prognostic prediction in gastric cancer. Medicine (Baltimore) 2022; 101:e28901. [PMID: 35212295 PMCID: PMC8878810 DOI: 10.1097/md.0000000000028901] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/04/2020] [Accepted: 02/01/2022] [Indexed: 01/04/2023] Open
Abstract
Gastric cancer (GC) is one of the most common cancers with high incidence and mortality worldwide. Recently, RNA-binding proteins (RBPs) have drawn more and more attention for its role in cancer pathophysiology. However, the function and clinical implication of RBPs in GC have not been fully elucidated. RNA sequencing data along with the corresponding clinical information of GC patients were downloaded from The Cancer Genome Atlas (TCGA) database. Differentially expressed RNA-binding proteins (DERBPs) between tumor and normal tissues were identified by "limma" package. Functional enrichment analysis and the protein-protein interaction (PPI) network were harnessed to explore the function and interaction of DERBPs. Next, univariate and multiple Cox regression were applied to screen prognosis-related hub RBPs and to construct a signature for GC. Meanwhile, a nomogram was built on the basis of the independent factors. A total of 296 DERBPs were found, and most of them mainly related to post-transcriptional regulation of RNA and ribonucleoprotein. A PPI network of DERBPs was constructed, consisting of 262 nodes and 2567 edges. A prognostic signature was built depending on 7 prognosis-related hub RBPs that could divide GC patients into high-risk and low-risk groups. Survival analysis showed that high-risk group had a worse prognosis compared with the low-risk group and the time-dependent receiver operating characteristic (ROC) curves suggested that signature existed moderate predictive capacities of survival for GC patients. Similar results were obtained from another independent set GSE62254, confirming the robustness of signature. Besides, the genetic variation and immune heterogeneity differences were identified between the high-risk and low-risk groups by bioinformatics methods. These findings would provide evidence of the effect of RBPs and offer a novel potential biomarker in prognostic prediction and clinical decision for GC.
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Affiliation(s)
- Yuzhi Wang
- Department of Laboratory Medicine, People's Hospital of Deyang City, Deyang, Sichuan, China
| | - Weixia Ye
- Department of Gastroenterology, Luzhou People's Hospital, Luzhou, Sichuan, China
| | - Gang Tian
- Department of Laboratory Medicine, Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China
| | - Yi Zhang
- Department of Blood Transfusion, People's Hospital of Deyang City, Deyang, Sichuan, China
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Overexpression of bmp4, dazl, nanos3 and sycp2 in Hu Sheep Leydig Cells Using CRISPR/dcas9 System Promoted Male Germ Cell Related Gene Expression. BIOLOGY 2022; 11:biology11020289. [PMID: 35205154 PMCID: PMC8869737 DOI: 10.3390/biology11020289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/05/2021] [Revised: 02/02/2022] [Accepted: 02/05/2022] [Indexed: 11/23/2022]
Abstract
Simple Summary Male germ cell development plays a crucial role in male reproduction, and gene expression also presents an essential regulatory role in its development. Many studies have been devoted to the induction and differentiation of pluripotent stem cells into germ cells in vitro. However, the culture system for pluripotent stem cells from domestic animals is not stable, especially in sheep. Our study attempted to transdifferentiate sheep somatic cells into germ cells in vitro by the overexpression of key germ cell related genes, with the aim of perfecting the construction of germ cell research models in vitro. Therefore, we explored the expression pattern of four crucial genes, bmp4, dazl, nanos3 and sycp2, in Hu sheep testicular development, and investigated the potential efficiency of overexpression of the four candidate genes using the CRISPR/dcas9 system in Leydig cells. We revealed that the overexpression of bmp4, dazl, nanos3 and sycp2 can promote the expression of male germ cell related genes. To the best of our knowledge, this is the first study to construct an overexpression induction system using CRISPR/dcas9 technology, and to induce sheep somatic cells into germ cells in vitro. Abstract Male germ cells directly affect the reproduction of males; however, their accurate isolation and culture in vitro is extremely challenging, hindering the study of germ cell development and function. CRISPR/dcas9, as an efficient gene reprogramming system, has been verified to promote the transdifferentiation of pluripotent stem cells into male germ cells by editing target genes. In our research, we explored the expression pattern of the germ cell related genes bmp4, dazl,nanos3 and sycp2 in Hu sheep testicular development and constructed the overexpression model using the CRISPR/dcas9 system. The results indicated that four genes showed more expression in testis tissue than in other tissues, and that bmp4, dazl and sycp2 present higher expression levels in nine-month-old sheep testes than in three-month-olds, while nanos3 expressed the opposite trend (p < 0.05). In addition, the expression of four potential genes in spermatogenic cells was slightly different, but they were all expressed in sheep Leydig cells. To verify the potential roles of the four genes in the process of inducing differentiation of male germ cells, we performed cell transfection in vitro. We found that the expression of the germ cell related genes Prdm1, Prdm14, Mvh and Sox17 were significantly increased after the overexpression of the four genes in Leydig cells, and the co-transfection effect was the most significant (p < 0.05). Our results illustrate the crucial functions of bmp4, dazl, nanos3 and sycp2 in Hu sheep testis development and verified the effectiveness of the overexpression model that was constructed using the CRISPR/dcas9 system, which provided a basis for further male germ cell differentiation in vitro.
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Sinha N, Lydia Walker G, Sen A. Looking at the Future Through the Mother's Womb: Gestational Diabetes and Offspring Fertility. Endocrinology 2021; 162:6379047. [PMID: 34597389 PMCID: PMC8520322 DOI: 10.1210/endocr/bqab209] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Indexed: 12/12/2022]
Abstract
Altered nutrition or intrauterine exposure to various adverse conditions during fetal development or earlier in a mother's life can lead to epigenetic changes in fetal tissues, predisposing those tissues to diseases that manifest when offspring become adults. An example is a maternal obesity associated with gestational diabetes (GDM), where fetal exposure to a hyperglycemic, hyperinsulinemic, and/or hyperlipidemic gestational environment can provoke epigenetic changes that predispose offspring to various diseased conditions later in life. While it is now well established that offspring exposed to GDM have an increased risk of developing obesity, metabolic disorders, and/or cardiovascular disease in adult life, there are limited studies assessing the reproductive health of these offspring. This mini-review discusses the long-term effect of in utero exposure to GDM-associated adverse prenatal environment on the reproductive health of the offspring. Moreover, using evidence from various animal models and human epidemiological studies, this review offers molecular insight and understanding of how epigenetic reprogramming of genes culminates in reproductive dysfunction and the development of subfertility or infertility later in adult life.
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Affiliation(s)
- Niharika Sinha
- Reproductive and Developmental Sciences Program, East Lansing, Michigan 48824, USA
- Department of Animal Sciences, Michigan State University, East Lansing, Michigan 48824, USA
| | - Gretchen Lydia Walker
- Reproductive and Developmental Sciences Program, East Lansing, Michigan 48824, USA
- Department of Animal Sciences, Michigan State University, East Lansing, Michigan 48824, USA
| | - Aritro Sen
- Reproductive and Developmental Sciences Program, East Lansing, Michigan 48824, USA
- Department of Animal Sciences, Michigan State University, East Lansing, Michigan 48824, USA
- Correspondence: Aritro Sen, PhD, Reproductive and Developmental Sciences Program, 3013 Interdisciplinary Science & Technology Building, Michigan State University, 766 Service Rd, East Lansing, MI 48824, USA.
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21
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Inactivity of Peptidase ClpP Causes Primary Accumulation of Mitochondrial Disaggregase ClpX with Its Interacting Nucleoid Proteins, and of mtDNA. Cells 2021; 10:cells10123354. [PMID: 34943861 PMCID: PMC8699119 DOI: 10.3390/cells10123354] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Revised: 11/20/2021] [Accepted: 11/25/2021] [Indexed: 12/19/2022] Open
Abstract
Biallelic pathogenic variants in CLPP, encoding mitochondrial matrix peptidase ClpP, cause a rare autosomal recessive condition, Perrault syndrome type 3 (PRLTS3). It is characterized by primary ovarian insufficiency and early sensorineural hearing loss, often associated with progressive neurological deficits. Mouse models showed that accumulations of (i) its main protein interactor, the substrate-selecting AAA+ ATPase ClpX, (ii) mitoribosomes, and (iii) mtDNA nucleoids are the main cellular consequences of ClpP absence. However, the sequence of these events and their validity in human remain unclear. Here, we studied global proteome profiles to define ClpP substrates among mitochondrial ClpX interactors, which accumulated consistently in ClpP-null mouse embryonal fibroblasts and brains. Validation work included novel ClpP-mutant patient fibroblast proteomics. ClpX co-accumulated in mitochondria with the nucleoid component POLDIP2, the mitochondrial poly(A) mRNA granule element LRPPRC, and tRNA processing factor GFM1 (in mouse, also GRSF1). Only in mouse did accumulated ClpX, GFM1, and GRSF1 appear in nuclear fractions. Mitoribosomal accumulation was minor. Consistent accumulations in murine and human fibroblasts also affected multimerizing factors not known as ClpX interactors, namely, OAT, ASS1, ACADVL, STOM, PRDX3, PC, MUT, ALDH2, PMPCB, UQCRC2, and ACADSB, but the impact on downstream metabolites was marginal. Our data demonstrate the primary impact of ClpXP on the assembly of proteins with nucleic acids and show nucleoid enlargement in human as a key consequence.
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22
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Zhang W, Chen W, Cui Y, Wen L, Yuan Q, Zhou F, Qiu Q, Sun M, Li Z, He Z. Direct reprogramming of human Sertoli cells into male germline stem cells with the self-renewal and differentiation potentials via overexpressing DAZL/DAZ2/BOULE genes. Stem Cell Reports 2021; 16:2798-2812. [PMID: 34653405 PMCID: PMC8581058 DOI: 10.1016/j.stemcr.2021.09.011] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2018] [Revised: 09/15/2021] [Accepted: 09/17/2021] [Indexed: 01/15/2023] Open
Abstract
We propose a new concept that human somatic cells can be converted to become male germline stem cells by the defined factors. Here, we demonstrated that the overexpression of DAZL, DAZ2, and BOULE could directly reprogram human Sertoli cells into cells with the characteristics of human spermatogonial stem cells (SSCs), as shown by their similar transcriptomes and proteomics with human SSCs. Significantly, human SSCs derived from human Sertoli cells colonized and proliferated in vivo, and they could differentiate into spermatocytes and haploid spermatids in vitro. Human Sertoli cell-derived SSCs excluded Y chromosome microdeletions and assumed normal chromosomes. Collectively, human somatic cells could be converted directly to human SSCs with the self-renewal and differentiation potentials and high safety. This study is of unusual significance, because it provides an effective approach for reprogramming human somatic cells into male germ cells and offers invaluable male gametes for treating male infertility.
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Affiliation(s)
- Wenhui Zhang
- State Key Laboratory of Oncogenes and Related Genes, Renji-Med X Clinical Stem Cell Research Center, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Wei Chen
- The Key Laboratory of Model Animals and Stem Cell Biology in Hunan Province, Hunan Normal University School of Medicine, Changsha, Hunan 410013, China
| | - Yinghong Cui
- The Key Laboratory of Model Animals and Stem Cell Biology in Hunan Province, Hunan Normal University School of Medicine, Changsha, Hunan 410013, China
| | - Liping Wen
- State Key Laboratory of Oncogenes and Related Genes, Renji-Med X Clinical Stem Cell Research Center, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Qingqing Yuan
- State Key Laboratory of Oncogenes and Related Genes, Renji-Med X Clinical Stem Cell Research Center, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Fan Zhou
- State Key Laboratory of Oncogenes and Related Genes, Renji-Med X Clinical Stem Cell Research Center, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Qianqian Qiu
- State Key Laboratory of Oncogenes and Related Genes, Renji-Med X Clinical Stem Cell Research Center, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Min Sun
- State Key Laboratory of Oncogenes and Related Genes, Renji-Med X Clinical Stem Cell Research Center, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Zheng Li
- Department of Andrology, Urologic Medical Center, Shanghai General Hospital, Shanghai Jiao Tong University, 100 Haining Road, Shanghai 200080, China
| | - Zuping He
- State Key Laboratory of Oncogenes and Related Genes, Renji-Med X Clinical Stem Cell Research Center, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China; The Key Laboratory of Model Animals and Stem Cell Biology in Hunan Province, Hunan Normal University School of Medicine, Changsha, Hunan 410013, China.
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23
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Evolutionarily conserved boule and dazl identify germ cells of Coilia nasus. AQUACULTURE AND FISHERIES 2021. [DOI: 10.1016/j.aaf.2021.10.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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24
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Hansen CL, Pelegri F. Primordial Germ Cell Specification in Vertebrate Embryos: Phylogenetic Distribution and Conserved Molecular Features of Preformation and Induction. Front Cell Dev Biol 2021; 9:730332. [PMID: 34604230 PMCID: PMC8481613 DOI: 10.3389/fcell.2021.730332] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Accepted: 08/25/2021] [Indexed: 11/24/2022] Open
Abstract
The differentiation of primordial germ cells (PGCs) occurs during early embryonic development and is critical for the survival and fitness of sexually reproducing species. Here, we review the two main mechanisms of PGC specification, induction, and preformation, in the context of four model vertebrate species: mouse, axolotl, Xenopus frogs, and zebrafish. We additionally discuss some notable molecular characteristics shared across PGC specification pathways, including the shared expression of products from three conserved germline gene families, DAZ (Deleted in Azoospermia) genes, nanos-related genes, and DEAD-box RNA helicases. Then, we summarize the current state of knowledge of the distribution of germ cell determination systems across kingdom Animalia, with particular attention to vertebrate species, but include several categories of invertebrates - ranging from the "proto-vertebrate" cephalochordates to arthropods, cnidarians, and ctenophores. We also briefly highlight ongoing investigations and potential lines of inquiry that aim to understand the evolutionary relationships between these modes of specification.
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Affiliation(s)
| | - Francisco Pelegri
- Laboratory of Genetics, University of Wisconsin-Madison, Madison, WI, United States
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25
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Mrinalini, Koh CY, Puniamoorthy N. Rapid Genomic Evolution Drives the Diversification of Male Reproductive Genes in Dung Beetles. Genome Biol Evol 2021; 13:6329639. [PMID: 34426833 PMCID: PMC8382682 DOI: 10.1093/gbe/evab172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/21/2021] [Indexed: 11/22/2022] Open
Abstract
The molecular basis for the evolution of novel phenotypes is a central question in evolutionary biology. In recent years, dung beetles have emerged as models for novel trait evolution as they possess distinct precopulatory traits such as sexually dimorphic horns on their head and thorax. Here, we use functional and evolutionary genomics to investigate the origins and the evolution of postcopulatory reproductive traits in male dung beetles. Male ejaculates that underlie postcopulatory sexual selection are excellent candidates to study novel trait evolution as they are complex, fast evolving, and often highly divergent in insects. We assemble de novo transcriptomes of male accessory glands and testes of a widespread dung beetle, Catharsius molossus, and we perform an evolutionary analysis of closely and distantly related insect genomes. Our results show there is rapid innovation at the genomic level even among closely related dung beetles. Genomic expansion and contraction drive the divergence of male reproductive traits and their functions. The birth of scores of completely novel reproductive genes is reinforced by the recruitment of these genes for high expression in male reproductive tissues, especially in the accessory glands. We find that male accessory glands of C. molossus are specialized for secretory function and express female, egg, and embryo-related genes as well as serine protease inhibitors, whilst the testes are specialized for spermatogenesis and sperm function. Finally, we touch upon putative functions of these evolutionary novelties using structure-function analysis as these proteins bear no homology to any other known proteins.
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Affiliation(s)
- Mrinalini
- Department of Biological Sciences, National University of Singapore, Singapore
| | - Cho Yeow Koh
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Nalini Puniamoorthy
- Department of Biological Sciences, National University of Singapore, Singapore
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26
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Kalwar Q, Chu M, Ahmad AA, Xiong L, Zhang Y, Ding X, Yan P. Expressional Profiling of TEX11, ESRα and BOLL Genes in Yak under Different Feeding Conditions. BIOLOGY 2021; 10:biology10080731. [PMID: 34439962 PMCID: PMC8389634 DOI: 10.3390/biology10080731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 07/26/2021] [Accepted: 07/27/2021] [Indexed: 11/16/2022]
Abstract
Simple Summary The yak (Bos grunniens) is regarded as one of the most magnificent domestic animals in the mountains of Asia, and it is well-adapted to the harsh environment of the Qinghai–Tibetan Plateau. Slow growth rate and low production and reproductive potential are the main limitations of yaks. It has been suggested that enhanced nutrition can improve reproductive efficiency in animals; however, this is still unclear for yaks. Hence, this study was designed to observe the effect of supplementary feeding on transcription and expression profiles of different genes related to reproduction. Such characterization under different feeding conditions can provide potential guidance for enhancement of the reproductive efficacy of yaks. Abstract Previous studies have demonstrated that nutrition plays a crucial part in improving the reproductive potential of farm animals; however, there is currently no research on the transcription and expression profiling of genes in yaks under different feeding conditions. Therefore, this research was planned to compare the transcription and expression profiles of TEX11, ESRα, and BOLL in yaks under natural grazing with concentrate supplementation (NG + CS) and NG without concentrate supplementation. The transcription and expressional levels of TEX11, ESRα, and BOLL mRNA were explored from the testes of yaks using qPCR, Western blotting, immunofluorescence, and immunochemistry. The results of the qPCR illustrated that the transcription levels of TEX11, ESRα, and BOLL were upregulated in the NG + CS group compared to those in the NG group. Moreover, the results of the immunochemistry and immunofluorescence showed that the expression of TEX11, ESRα, and BOLL proteins increased after concentrate supplementation. Meanwhile, ESRα protein levels were lower in the testes and epididymides of yaks in the NG group than in those in the NG + CS group. Similarly, BOLL protein expression was higher in the testes and epididymides of the NG + CS group, but its expression was lower in the epididymides of the NG group. Furthermore, Western blotting showed that the molecular weights of ESRα and BOLL proteins were 64 kDa and 31 kDa, respectively. Finally, in the conclusion we summarize how a proper level of dietary energy supplementation can improve the reproductive potential of yaks by upregulating genes related to reproduction.
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Affiliation(s)
- Qudratullah Kalwar
- Key Laboratory of Yak Breeding Engineering, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Science, Lanzhou 730050, China; (M.C.); (A.A.A.); (L.X.); (Y.Z.); (X.D.)
- Department of Animal Reproduction, Shaheed Benazir Bhutto University of Veterinary and Animal Sciences, Sakrand 67210, Pakistan
- Correspondence: (Q.K.); (P.Y.); Tel.: +86-15-60-060-4684 (Q.K.); +86-931-211-5288 (P.Y.); Fax: +86-931-211-5191 (P.Y.)
| | - Min Chu
- Key Laboratory of Yak Breeding Engineering, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Science, Lanzhou 730050, China; (M.C.); (A.A.A.); (L.X.); (Y.Z.); (X.D.)
| | - Anum Ali Ahmad
- Key Laboratory of Yak Breeding Engineering, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Science, Lanzhou 730050, China; (M.C.); (A.A.A.); (L.X.); (Y.Z.); (X.D.)
| | - Lin Xiong
- Key Laboratory of Yak Breeding Engineering, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Science, Lanzhou 730050, China; (M.C.); (A.A.A.); (L.X.); (Y.Z.); (X.D.)
| | - Yongfeng Zhang
- Key Laboratory of Yak Breeding Engineering, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Science, Lanzhou 730050, China; (M.C.); (A.A.A.); (L.X.); (Y.Z.); (X.D.)
| | - Xuezhi Ding
- Key Laboratory of Yak Breeding Engineering, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Science, Lanzhou 730050, China; (M.C.); (A.A.A.); (L.X.); (Y.Z.); (X.D.)
| | - Ping Yan
- Key Laboratory of Yak Breeding Engineering, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Science, Lanzhou 730050, China; (M.C.); (A.A.A.); (L.X.); (Y.Z.); (X.D.)
- Correspondence: (Q.K.); (P.Y.); Tel.: +86-15-60-060-4684 (Q.K.); +86-931-211-5288 (P.Y.); Fax: +86-931-211-5191 (P.Y.)
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27
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Cordero P, Guerrero-Moncayo A, De Los Reyes M, Varas-Godoy M, Cortez J, Torres CG, Parraguez VH, Peralta OA. Overexpression of DAZL, STRA8, and BOULE Genes and Treatment With BMP4 or Retinoic Acid Modulate the Expression of MSC Overexpressing Germ Cell Genes. Front Vet Sci 2021; 8:667547. [PMID: 34113673 PMCID: PMC8185135 DOI: 10.3389/fvets.2021.667547] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2021] [Accepted: 04/12/2021] [Indexed: 01/02/2023] Open
Abstract
In vitro gamete derivation from stem cells has potential applications in animal reproduction as an alternative method for the dissemination of elite animal genetics, production of transgenic animals, and conservation of endangered species. Mesenchymal stem cells (MSCs) may be suitable candidates for in vitro gamete derivation considering their differentiative capacity and their potential for cell therapy. Due to its relevance in gametogenesis, it has been reported that retinoic acid (RA) and bone morphogenetic protein (BMP) 4 are able to upregulate the expression of specific markers associated to the early stages of germ cell (GCs) differentiation in bovine fetal MSCs (bfMSCs). In the present study, we used polycistronic vectors containing combinations of GC genes DAZL, STRA8, and BOULE followed by exposure to BMP4 or RA to induce GC differentiation of bovine fetal adipose tissue-derived MSC (AT-MSCs). Cells samples at Day 14 were analyzed according to the expression of pluripotent genes NANOG and OCT4 and GC genes DAZL, STRA8, BOULE, PIWI, c-KIT, and FRAGILIS using Q-PCR. Fetal and adult testis and AT-MSCs samples were also analyzed for the expression of DAZL, STRA8, and NANOG using immunofluorescence. Increased gene expression levels in the adult testis and cell-specific distribution of DAZL, STRA8, and NANOG in the fetal testis suggest that these markers are important components of the regulatory network that control the in vivo differentiation of bovine GCs. Overexpression of DAZL and STRA8 in bi-cistronic and DAZL, STRA8, and BOULE in tri-cistronic vectors resulted in the upregulation of OCT4, NANOG, and PIWIL2 in bovine fetal AT-MSCs. While BMP4 repressed NANOG expression, this treatment increased DAZL and c-KIT and activated FRAGILIS expression in bovine fetal AT-MSCs. Treatment with RA for 14 days increased the expression of DAZL and FRAGILIS and maintained the mRNA levels of STRA8 in bovine fetal AT-MSCs transfected with bi-cistronic and tri-cistronic vectors. Moreover, RA treatment repressed the expression of OCT4 and NANOG in these cells. Thus, overexpression of DAZL, STRA8, and BOULE induced the upregulation of the pluripotent markers and PIWIL2 in transfected bovine fetal AT-MSCs. The partial activation of GC gene expression by BMP4 and RA suggests that both factors possess common targets but induce different gene expression effects during GC differentiation in overexpressing bovine fetal AT-MSCs.
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Affiliation(s)
- Paloma Cordero
- Department of Animal Production Sciences, Faculty of Veterinary and Animal Sciences, University of Chile, Santiago, Chile
| | - Alejandra Guerrero-Moncayo
- Department of Animal Production Sciences, Faculty of Veterinary and Animal Sciences, University of Chile, Santiago, Chile
| | - Monica De Los Reyes
- Department of Animal Production Sciences, Faculty of Veterinary and Animal Sciences, University of Chile, Santiago, Chile
| | - Manuel Varas-Godoy
- Centro de Biología Celular y Biomedicina (CEBICEM), Facultad de Medicina y Ciencia, Universidad San Sebastián, Santiago, Chile
| | - Jahaira Cortez
- Department of Animal Production Sciences, Faculty of Veterinary and Animal Sciences, University of Chile, Santiago, Chile
| | - Cristian G Torres
- Department of Clinical Sciences, Faculty of Veterinary and Animal Sciences, University of Chile, Santiago, Chile
| | - Victor H Parraguez
- Department of Biological Sciences, Veterinary and Animal Sciences, University of Chile, Santiago, Chile
| | - Oscar A Peralta
- Department of Animal Production Sciences, Faculty of Veterinary and Animal Sciences, University of Chile, Santiago, Chile
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28
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Bertho S, Clapp M, Banisch TU, Bandemer J, Raz E, Marlow FL. Zebrafish dazl regulates cystogenesis and germline stem cell specification during the primordial germ cell to germline stem cell transition. Development 2021; 148:dev187773. [PMID: 33722898 PMCID: PMC8077517 DOI: 10.1242/dev.187773] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2019] [Accepted: 03/04/2021] [Indexed: 01/14/2023]
Abstract
Fertility and gamete reserves are maintained by asymmetric divisions of the germline stem cells to produce new stem cells or daughters that differentiate as gametes. Before entering meiosis, differentiating germ cells (GCs) of sexual animals typically undergo cystogenesis. This evolutionarily conserved process involves synchronous and incomplete mitotic divisions of a GC daughter (cystoblast) to generate sister cells connected by intercellular bridges that facilitate the exchange of materials to support rapid expansion of the gamete progenitor population. Here, we investigated cystogenesis in zebrafish and found that early GCs are connected by ring canals, and show that Deleted in azoospermia-like (Dazl), a conserved vertebrate RNA-binding protein (Rbp), is a regulator of this process. Analysis of dazl mutants revealed the essential role of Dazl in regulating incomplete cytokinesis, germline cyst formation and germline stem cell specification before the meiotic transition. Accordingly, dazl mutant GCs form defective ring canals, and ultimately remain as individual cells that fail to differentiate as meiocytes. In addition to promoting cystoblast divisions and meiotic entry, dazl is required for germline stem cell establishment and fertility.
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Affiliation(s)
- Sylvain Bertho
- Department of Cell, Developmental and Regenerative Medicine, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place Box 1020 New York, NY 10029-6574, USA
| | - Mara Clapp
- Department of Developmental and Molecular Biology, Albert Einstein College of Medicine, Bronx, NY 10461, USA
| | - Torsten U. Banisch
- Institute of Cell Biology Center for Molecular Biology of Inflammation, Von-Esmarch-Str. 56, D-48149 Muenster, Germany
- New York University School of Medicine, Department of Cell Biology, New York, NY 10012, USA
| | - Jan Bandemer
- Institute of Cell Biology Center for Molecular Biology of Inflammation, Von-Esmarch-Str. 56, D-48149 Muenster, Germany
| | - Erez Raz
- Institute of Cell Biology Center for Molecular Biology of Inflammation, Von-Esmarch-Str. 56, D-48149 Muenster, Germany
| | - Florence L. Marlow
- Department of Cell, Developmental and Regenerative Medicine, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place Box 1020 New York, NY 10029-6574, USA
- Department of Developmental and Molecular Biology, Albert Einstein College of Medicine, Bronx, NY 10461, USA
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29
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Li T, Luo R, Wang X, Wang H, Zhao X, Guo Y, Jiang H, Ma Y. Unraveling Stage-Dependent Expression Patterns of Circular RNAs and Their Related ceRNA Modulation in Ovine Postnatal Testis Development. Front Cell Dev Biol 2021; 9:627439. [PMID: 33816472 PMCID: PMC8017185 DOI: 10.3389/fcell.2021.627439] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Accepted: 03/03/2021] [Indexed: 12/13/2022] Open
Abstract
Circular RNAs (circRNAs) have been shown to function in the reproductive systems including testis. However, their expression, as well as function in testicular development of sheep remain undefined. Herein, we performed RNA sequencing to reveal circRNA temporal expression patterns in testes of Tibetan sheep from different stages of maturation (3M, 3-month-old; 1Y, 1-year-old; 3Y, 3-year-old). A total of 3,982, 414, and 4,060 differentially expressed (DE) circRNAs were uncovered from 3M vs 1Y, 1Y vs 3Y, and 3M vs 3Y, respectively. Functional enrichment assessment indicated that the source genes of DE circRNAs were primarily engaged in spermatogenesis and testicular immune privilege including blood-testis barrier (BTB). We subsequently constructed the core circRNA-miRNA-mRNA interaction network for genes related to testicular function, such as spermatogenesis, germ cell development, BTB, and cell cycle/meiosis. Furthermore, we validated the target associations between either circ_024949, circ_026259 or IGF1, and oar-miR-29b in this network, and revealed their similar expression signatures in developmental testes that they were extensively expressed in germ cells, Leydig cells, and Sertoli cells, thus suggesting their broad functions in the functional maintenance of Leydig cells and Sertoli cells, as well as the development and maturation of male germ cells. Meanwhile, circ_026259 was shown to promote IGF1 expression through inhibition of oar-miR-29b in sheep Sertoli cells. This work gives the first global view for the expression and regulation of circRNAs in sheep testis, which will be helpful for providing new insights into the molecular mechanism of ovine testis function.
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Affiliation(s)
- Taotao Li
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, China
| | - Ruirui Luo
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, China
| | - Xia Wang
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, China
| | - Huihui Wang
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, China
| | - Xingxu Zhao
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, China
| | - Yunxia Guo
- College of Life Science, Hebei Agricultural University, Baoding, China
| | - Haitao Jiang
- Wenshang County Inspection and Testing Center, Jining, China
| | - Youji Ma
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, China
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30
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Sharma D, Zagore LL, Brister MM, Ye X, Crespo-Hernández CE, Licatalosi DD, Jankowsky E. The kinetic landscape of an RNA-binding protein in cells. Nature 2021; 591:152-156. [PMID: 33568810 PMCID: PMC8299502 DOI: 10.1038/s41586-021-03222-x] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Accepted: 01/11/2021] [Indexed: 01/30/2023]
Abstract
Gene expression in higher eukaryotic cells orchestrates interactions between thousands of RNA-binding proteins (RBPs) and tens of thousands of RNAs1. The kinetics by which RBPs bind to and dissociate from their RNA sites are critical for the coordination of cellular RNA-protein interactions2. However, these kinetic parameters have not been experimentally measured in cells. Here we show that time-resolved RNA-protein cross-linking with a pulsed femtosecond ultraviolet laser, followed by immunoprecipitation and high-throughput sequencing, allows the determination of binding and dissociation kinetics of the RBP DAZL for thousands of individual RNA-binding sites in cells. This kinetic cross-linking and immunoprecipitation (KIN-CLIP) approach reveals that DAZL resides at individual binding sites for time periods of only seconds or shorter, whereas the binding sites remain DAZL-free for markedly longer. The data also indicate that DAZL binds to many RNAs in clusters of multiple proximal sites. The effect of DAZL on mRNA levels and ribosome association correlates with the cumulative probability of DAZL binding in these clusters. Integrating kinetic data with mRNA features quantitatively connects DAZL-RNA binding to DAZL function. Our results show how kinetic parameters for RNA-protein interactions can be measured in cells, and how these data link RBP-RNA binding to the cellular function of RBPs.
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Affiliation(s)
- Deepak Sharma
- Center for RNA Science and Therapeutics, School of Medicine, Case Western Reserve University, Cleveland, OH 44106,Department of Biochemistry, School of Medicine, Case Western Reserve University, Cleveland, OH 44106
| | - Leah L. Zagore
- Center for RNA Science and Therapeutics, School of Medicine, Case Western Reserve University, Cleveland, OH 44106,Department of Biochemistry, School of Medicine, Case Western Reserve University, Cleveland, OH 44106
| | - Matthew M. Brister
- Department of Chemistry, Case Western Reserve University, Cleveland, OH 44106
| | - Xuan Ye
- Center for RNA Science and Therapeutics, School of Medicine, Case Western Reserve University, Cleveland, OH 44106,Department of Biochemistry, School of Medicine, Case Western Reserve University, Cleveland, OH 44106
| | | | - Donny D. Licatalosi
- Center for RNA Science and Therapeutics, School of Medicine, Case Western Reserve University, Cleveland, OH 44106,Department of Biochemistry, School of Medicine, Case Western Reserve University, Cleveland, OH 44106,Corresponding authors: Donny D. Licatalosi: ; Eckhard Jankowsky:
| | - Eckhard Jankowsky
- Center for RNA Science and Therapeutics, School of Medicine, Case Western Reserve University, Cleveland, OH 44106,Department of Biochemistry, School of Medicine, Case Western Reserve University, Cleveland, OH 44106,Department of Physics, Case Western Reserve University, Cleveland, OH 44106,Case Comprehensive Cancer Center, School of Medicine, Case Western Reserve University, Cleveland, OH 44106,Corresponding authors: Donny D. Licatalosi: ; Eckhard Jankowsky:
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31
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Welter H, Herrmann C, Fröhlich T, Flenkenthaler F, Eubler K, Schorle H, Nettersheim D, Mayerhofer A, Müller-Taubenberger A. Filamin A Orchestrates Cytoskeletal Structure, Cell Migration and Stem Cell Characteristics in Human Seminoma TCam-2 Cells. Cells 2020; 9:E2563. [PMID: 33266100 PMCID: PMC7761120 DOI: 10.3390/cells9122563] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Revised: 11/19/2020] [Accepted: 11/26/2020] [Indexed: 12/16/2022] Open
Abstract
Filamins are large dimeric F-actin cross-linking proteins, crucial for the mechanosensitive properties of a number of cell types. Due to their interaction with a variety of different proteins, they exert important regulatory functions. However, in the human testis the role of filamins has been insufficiently explored. Immunohistochemical staining of human testis samples identified filamin A (FLNA) in spermatogonia and peritubular myoid cells. Investigation of different testicular tumor samples indicated that seminoma also express FLNA. Moreover, mass spectrometric analyses identified FLNA as one of the most abundant proteins in human seminoma TCam-2 cells. We therefore focused on FLNA in TCam-2 cells, and identified by co-immunoprecipitation LAD1, RUVBL1 and DAZAP1, in addition to several cytoskeletal proteins, as interactors of FLNA. To study the role of FLNA in TCam-2 cells, we generated FLNA-deficient cells using the CRISPR/Cas9 system. Loss of FLNA causes an irregular arrangement of the actin cytoskeleton and mechanical instability, impaired adhesive properties and disturbed migratory behavior. Furthermore, transcriptional activity of typical stem cell factors is increased in the absence of FLNA. In summary, our data suggest that FLNA is crucially involved in balancing stem cell characteristics and invasive properties in human seminoma cells and possibly human testicular germ cells.
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Affiliation(s)
- Harald Welter
- Anatomy III, Cell Biology, Biomedical Center, Ludwig Maximillian University of Munich, 82152 Planegg, Martinsried, Germany; (H.W.); (C.H.); (K.E.); (A.M.-T.)
| | - Carola Herrmann
- Anatomy III, Cell Biology, Biomedical Center, Ludwig Maximillian University of Munich, 82152 Planegg, Martinsried, Germany; (H.W.); (C.H.); (K.E.); (A.M.-T.)
| | - Thomas Fröhlich
- Laboratory for Functional Genome Analysis (LAFUGA), Gene Center, Ludwig Maximilian University of Munich, 81377 Munich, Germany; (T.F.); (F.F.)
| | - Florian Flenkenthaler
- Laboratory for Functional Genome Analysis (LAFUGA), Gene Center, Ludwig Maximilian University of Munich, 81377 Munich, Germany; (T.F.); (F.F.)
| | - Katja Eubler
- Anatomy III, Cell Biology, Biomedical Center, Ludwig Maximillian University of Munich, 82152 Planegg, Martinsried, Germany; (H.W.); (C.H.); (K.E.); (A.M.-T.)
| | - Hubert Schorle
- Department of Developmental Pathology, Institute of Pathology, University Hospital Bonn, 53127 Bonn, Germany;
| | - Daniel Nettersheim
- Department of Urology, Urological Research Lab, Translational UroOncology, University Hospital Düsseldorf, Heinrich Heine University Düsseldorf, 40225 Düsseldorf, Germany;
| | - Artur Mayerhofer
- Anatomy III, Cell Biology, Biomedical Center, Ludwig Maximillian University of Munich, 82152 Planegg, Martinsried, Germany; (H.W.); (C.H.); (K.E.); (A.M.-T.)
| | - Annette Müller-Taubenberger
- Anatomy III, Cell Biology, Biomedical Center, Ludwig Maximillian University of Munich, 82152 Planegg, Martinsried, Germany; (H.W.); (C.H.); (K.E.); (A.M.-T.)
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32
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Male Factors: the Role of Sperm in Preimplantation Embryo Quality. Reprod Sci 2020; 28:1788-1811. [DOI: 10.1007/s43032-020-00334-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Accepted: 09/25/2020] [Indexed: 12/19/2022]
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33
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Kolapalli SP, Sahu R, Chauhan NR, Jena KK, Mehto S, Das SK, Jain A, Rout M, Dash R, Swain RK, Lee DY, Rusten TE, Chauhan S, Chauhan S. RNA-Binding RING E3-Ligase DZIP3/hRUL138 Stabilizes Cyclin D1 to Drive Cell-Cycle and Cancer Progression. Cancer Res 2020; 81:315-331. [PMID: 33067265 DOI: 10.1158/0008-5472.can-20-1871] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Revised: 09/02/2020] [Accepted: 10/13/2020] [Indexed: 11/16/2022]
Abstract
DZIP3/hRUL138 is a poorly characterized RNA-binding RING E3-ubiquitin ligase with functions in embryonic development. Here we demonstrate that DZIP3 is a crucial driver of cancer cell growth, migration, and invasion. In mice and zebrafish cancer models, DZIP3 promoted tumor growth and metastasis. In line with these results, DZIP3 was frequently overexpressed in several cancer types. Depletion of DZIP3 from cells resulted in reduced expression of Cyclin D1 and a subsequent G1 arrest and defect in cell growth. Mechanistically, DZIP3 utilized its two different domains to interact and stabilize Cyclin D1 both at mRNA and protein levels. Using an RNA-binding lysine-rich region, DZIP3 interacted with the AU-rich region in 3' untranslated region of Cyclin D1 mRNA and stabilized it. Using a RING E3-ligase domain, DZIP3 interacted and increased K63-linked ubiquitination of Cyclin D1 protein to stabilize it. Remarkably, DZIP3 interacted with, ubiquitinated, and stabilized Cyclin D1 predominantly in the G1 phase of the cell cycle, where it is needed for cell-cycle progression. In agreement with this, a strong positive correlation of mRNA expression between DZIP3 and Cyclin D1 in different cancer types was observed. Additionally, DZIP3 regulated several cell cycle proteins by modulating the Cyclin D1-E2F axes. Taken together, this study demonstrates for the first time that DZIP3 uses a unique two-pronged mechanism in its stabilization of Cyclin D1 to drive cell-cycle and cancer progression. SIGNIFICANCE: These findings show that DZIP3 is a novel driver of cell-cycle and cancer progression via its control of Cyclin D1 mRNA and protein stability in a cell-cycle phase-dependent manner. GRAPHICAL ABSTRACT: http://cancerres.aacrjournals.org/content/canres/81/2/315/F1.large.jpg.
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Affiliation(s)
| | - Rinku Sahu
- Cell and Cancer Biology Lab, Institute of Life Sciences, Bhubaneswar, Odisha, India
| | - Nishant R Chauhan
- Cell and Cancer Biology Lab, Institute of Life Sciences, Bhubaneswar, Odisha, India
| | - Kautilya K Jena
- Cell and Cancer Biology Lab, Institute of Life Sciences, Bhubaneswar, Odisha, India
| | - Subhash Mehto
- Cell and Cancer Biology Lab, Institute of Life Sciences, Bhubaneswar, Odisha, India
| | - Saroj K Das
- Centre for Biotechnology, Siksha 'O' Anusandhan (Deemed to be University), Bhubaneswar, Odisha, India
| | - Ashish Jain
- Centre for Cancer Cell Reprogramming, Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo; Department of Molecular Cell Biology, Institute for Cancer Research, Oslo University Hospital, Oslo, Norway
| | - Manaswini Rout
- Vascular Biology Lab, Institute of Life Sciences, Bhubaneswar, Odisha, India
| | - Rupesh Dash
- Gene Therapy and Cancer Lab, Institute of Life Sciences, Bhubaneswar, Odisha, India
| | - Rajeeb K Swain
- Vascular Biology Lab, Institute of Life Sciences, Bhubaneswar, Odisha, India
| | - David Y Lee
- Department of Internal Medicine, Radiation Oncology, and University of New Mexico Comprehensive Cancer Center, University of New Mexico School of Medicine, Albuquerque, New Mexico
| | - Tor Erik Rusten
- Centre for Cancer Cell Reprogramming, Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo; Department of Molecular Cell Biology, Institute for Cancer Research, Oslo University Hospital, Oslo, Norway
| | - Santosh Chauhan
- Cell and Cancer Biology Lab, Institute of Life Sciences, Bhubaneswar, Odisha, India.
| | - Swati Chauhan
- Gene Therapy and Cancer Lab, Institute of Life Sciences, Bhubaneswar, Odisha, India.
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34
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Clark KL, Talton OO, Ganesan S, Schulz LC, Keating AF. Developmental origins of ovarian disorder: impact of maternal lean gestational diabetes on the offspring ovarian proteome in mice†. Biol Reprod 2020; 101:771-781. [PMID: 31290541 DOI: 10.1093/biolre/ioz116] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2019] [Revised: 01/06/2019] [Accepted: 07/04/2019] [Indexed: 12/13/2022] Open
Abstract
Gestational diabetes mellitus (GDM) is an obstetric disorder affecting approximately 10% of pregnancies. The four high-fat, high-sucrose (HFHS) mouse model emulates GDM in lean women. Dams are fed a HFHS diet 1 week prior to mating and throughout gestation resulting in inadequate insulin response to glucose in mid-late pregnancy. The offspring of HFHS dams have increased adiposity, thus, we hypothesized that maternal metabolic alterations during lean GDM would compromise ovarian function in offspring both basally and in response to a control or HFHS diet in adulthood. Briefly, DLPL were lean dams and control diet pups; DLPH were lean dams and HFHS pups; DHPL were HFHS dams and control diet pups; and DHPH were HFHS dams and HFHS pups. A HFHS challenge in the absence of maternal GDM (DLPL vs. DLPH) increased 3 and decreased 30 ovarian proteins. Maternal GDM in the absence of a dietary stress (DLPL vs. DHPL) increased abundance of 4 proteins and decreased abundance of 85 proteins in the offspring ovary. Finally, 87 proteins increased, and 4 proteins decreased in offspring ovaries due to dietary challenge and exposure to maternal GDM in utero (DLPL vs. DHPH). Canopy FGF signaling regulator 2, deleted in azoospermia-associated protein 1, septin 7, and serine/arginine-rich splicing factor 2 were altered across multiple offspring groups. Together, these findings suggest a possible impact on fertility and oocyte quality in relation to GDM exposure in utero as well as in response to a western diet in later life.
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Affiliation(s)
- Kendra L Clark
- Department of Animal Science, Iowa State University, Ames, Iowa, USA
| | - Omonseigho O Talton
- Department of Obstetrics, Gynecology, and Women's Health, University of Missouri, Columbia, Missouri, USA
| | - Shanthi Ganesan
- Department of Animal Science, Iowa State University, Ames, Iowa, USA
| | - Laura C Schulz
- Department of Obstetrics, Gynecology, and Women's Health, University of Missouri, Columbia, Missouri, USA
| | - Aileen F Keating
- Department of Animal Science, Iowa State University, Ames, Iowa, USA
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35
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Luo EC, Nathanson JL, Tan FE, Schwartz JL, Schmok JC, Shankar A, Markmiller S, Yee BA, Sathe S, Pratt GA, Scaletta DB, Ha Y, Hill DE, Aigner S, Yeo GW. Large-scale tethered function assays identify factors that regulate mRNA stability and translation. Nat Struct Mol Biol 2020; 27:989-1000. [PMID: 32807991 DOI: 10.1038/s41594-020-0477-6] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2020] [Accepted: 07/02/2020] [Indexed: 02/07/2023]
Abstract
The molecular functions of the majority of RNA-binding proteins (RBPs) remain unclear, highlighting a major bottleneck to a full understanding of gene expression regulation. Here, we develop a plasmid resource of 690 human RBPs that we subject to luciferase-based 3'-untranslated-region tethered function assays to pinpoint RBPs that regulate RNA stability or translation. Enhanced UV-cross-linking and immunoprecipitation of these RBPs identifies thousands of endogenous mRNA targets that respond to changes in RBP level, recapitulating effects observed in tethered function assays. Among these RBPs, the ubiquitin-associated protein 2-like (UBAP2L) protein interacts with RNA via its RGG domain and cross-links to mRNA and rRNA. Fusion of UBAP2L to RNA-targeting CRISPR-Cas9 demonstrates programmable translational enhancement. Polysome profiling indicates that UBAP2L promotes translation of target mRNAs, particularly global regulators of translation. Our tethering survey allows rapid assignment of the molecular activity of proteins, such as UBAP2L, to specific steps of mRNA metabolism.
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Affiliation(s)
- En-Ching Luo
- Department of Cellular and Molecular Medicine, University of California, San Diego, La Jolla, CA, USA.,Stem Cell Program, University of California, San Diego, La Jolla, CA, USA.,Institute for Genomic Medicine, University of California, San Diego, La Jolla, CA, USA
| | - Jason L Nathanson
- Department of Cellular and Molecular Medicine, University of California, San Diego, La Jolla, CA, USA.,Stem Cell Program, University of California, San Diego, La Jolla, CA, USA.,Institute for Genomic Medicine, University of California, San Diego, La Jolla, CA, USA
| | - Frederick E Tan
- Department of Cellular and Molecular Medicine, University of California, San Diego, La Jolla, CA, USA.,Stem Cell Program, University of California, San Diego, La Jolla, CA, USA.,Institute for Genomic Medicine, University of California, San Diego, La Jolla, CA, USA
| | - Joshua L Schwartz
- Department of Cellular and Molecular Medicine, University of California, San Diego, La Jolla, CA, USA.,Stem Cell Program, University of California, San Diego, La Jolla, CA, USA.,Institute for Genomic Medicine, University of California, San Diego, La Jolla, CA, USA
| | - Jonathan C Schmok
- Department of Cellular and Molecular Medicine, University of California, San Diego, La Jolla, CA, USA.,Stem Cell Program, University of California, San Diego, La Jolla, CA, USA.,Institute for Genomic Medicine, University of California, San Diego, La Jolla, CA, USA
| | - Archana Shankar
- Department of Cellular and Molecular Medicine, University of California, San Diego, La Jolla, CA, USA.,Stem Cell Program, University of California, San Diego, La Jolla, CA, USA.,Institute for Genomic Medicine, University of California, San Diego, La Jolla, CA, USA
| | - Sebastian Markmiller
- Department of Cellular and Molecular Medicine, University of California, San Diego, La Jolla, CA, USA.,Stem Cell Program, University of California, San Diego, La Jolla, CA, USA.,Institute for Genomic Medicine, University of California, San Diego, La Jolla, CA, USA
| | - Brian A Yee
- Department of Cellular and Molecular Medicine, University of California, San Diego, La Jolla, CA, USA.,Stem Cell Program, University of California, San Diego, La Jolla, CA, USA.,Institute for Genomic Medicine, University of California, San Diego, La Jolla, CA, USA
| | - Shashank Sathe
- Department of Cellular and Molecular Medicine, University of California, San Diego, La Jolla, CA, USA.,Stem Cell Program, University of California, San Diego, La Jolla, CA, USA.,Institute for Genomic Medicine, University of California, San Diego, La Jolla, CA, USA
| | - Gabriel A Pratt
- Department of Cellular and Molecular Medicine, University of California, San Diego, La Jolla, CA, USA.,Stem Cell Program, University of California, San Diego, La Jolla, CA, USA.,Institute for Genomic Medicine, University of California, San Diego, La Jolla, CA, USA
| | - Duy B Scaletta
- Department of Cellular and Molecular Medicine, University of California, San Diego, La Jolla, CA, USA.,Stem Cell Program, University of California, San Diego, La Jolla, CA, USA.,Institute for Genomic Medicine, University of California, San Diego, La Jolla, CA, USA
| | - Yuanchi Ha
- Department of Cellular and Molecular Medicine, University of California, San Diego, La Jolla, CA, USA.,Stem Cell Program, University of California, San Diego, La Jolla, CA, USA.,Institute for Genomic Medicine, University of California, San Diego, La Jolla, CA, USA
| | - David E Hill
- Center for Cancer Systems Biology (CCSB), Dana-Farber Cancer Institute, Boston, MA, USA
| | - Stefan Aigner
- Department of Cellular and Molecular Medicine, University of California, San Diego, La Jolla, CA, USA.,Stem Cell Program, University of California, San Diego, La Jolla, CA, USA.,Institute for Genomic Medicine, University of California, San Diego, La Jolla, CA, USA
| | - Gene W Yeo
- Department of Cellular and Molecular Medicine, University of California, San Diego, La Jolla, CA, USA. .,Stem Cell Program, University of California, San Diego, La Jolla, CA, USA. .,Institute for Genomic Medicine, University of California, San Diego, La Jolla, CA, USA.
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36
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Zeng M, Dai X, Liang Z, Sun R, Huang S, Luo L, Li Z. Critical roles of mRNA m 6A modification and YTHDC2 expression for meiotic initiation and progression in female germ cells. Gene 2020; 753:144810. [PMID: 32470506 DOI: 10.1016/j.gene.2020.144810] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2020] [Revised: 04/30/2020] [Accepted: 05/22/2020] [Indexed: 11/17/2022]
Abstract
Meiotic entry and progression require dynamic regulation of germline gene expression. m6A on mRNAs and recognition by YTHDC2 has been known as post-transcriptional regulatory complex, but the roles of this regulator remain unclear for meiotic initiation and progression in female germ cells (FGCs). This study showed that m6A modification occurred mainly in FGCs rather than ovarian somatic cells (SOMAs), and m6A levels in FGCs increased significantly with meiotic initiation. m6A inhibition suppressed expression of the meiotic markers and affected the percent of FGCs at zygotene, pachytene and diplotene stage respectively. YTHDC2 expression also increased in the same pattern with m6A. Ythdc2 knockdown decreased the percent of STRA8-positive FGCs and altered the percent of FGCs at zygotene and pachytene stage respectively. Taken together, these results suggest that mRNA m6A modification and YTHDC2 expression are essential for meiotic initiation and progression in FGCs.
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Affiliation(s)
- Ming Zeng
- Medical Research Institute, Baoan Women's and Children's Hospital, Jinan University, Shenzhen 518133, China
| | - Xin Dai
- Medical Research Institute, Baoan Women's and Children's Hospital, Jinan University, Shenzhen 518133, China
| | - Zhibing Liang
- Medical Research Institute, Baoan Women's and Children's Hospital, Jinan University, Shenzhen 518133, China
| | - Ruliang Sun
- Department of Pathology, Baoan Women's and Children's Hospital, Jinan University, Shenzhen 518133, China
| | - Sui Huang
- Department of Pathology, Baoan Women's and Children's Hospital, Jinan University, Shenzhen 518133, China
| | - Liangping Luo
- Medical Imaging Center, The First Affiliated Hospital of Jinan University, Guangzhou 510630, China.
| | - Zhongxiang Li
- Medical Research Institute, Baoan Women's and Children's Hospital, Jinan University, Shenzhen 518133, China.
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37
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Li T, Wang X, Zhang H, Chen H, Liu N, Xue R, Zhao X, Ma Y. Gene expression patterns and protein cellular localization suggest a novel role for DAZL in developing Tibetan sheep testes. Gene 2020; 731:144335. [PMID: 31927007 DOI: 10.1016/j.gene.2020.144335] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Revised: 12/16/2019] [Accepted: 01/06/2020] [Indexed: 02/06/2023]
Abstract
Deleted in azoospermia-like (DAZL) is essential for mammalian spermatogenesis as it regulates proliferation, development, maturation and functional maintenance of male germ cells. Its expression and regulation vary with different species or in the same animal at different developmental stages, and despite its importance, very little is known about its roles in sheep, especially Tibetan sheep. To investigate the expression patterns and regulatory roles of DZAL in Tibetan sheep testis, testicular tissue was isolated from sheep at three crucial development stages: 3 months old, 1 year old and 3 years old. Using quantitative real-time PCR and Western blot, we found that DAZL mRNA first decreased and then increased with advancing age, while DAZL protein exhibited an opposite expression pattern, with first increased and subsequently decreased levels. Immunohistochemistry and immunofluorescence revealed that DAZL protein was located predominantly in the cytoplasm of Leydig cells and in both the cytoplasm and nucleus of spermatids. ELISA indicated that testosterone content within developing testes was first enhanced and then declined. Our results, taken together, demonstrate, for the first time, that DAZL gene is involved in Tibetan sheep spermatogenesis by regulating the development of spermatids in post-pubertal rams, along with a novel role in functional maintenance of Leydig cells in postnatal rams.
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Affiliation(s)
- Taotao Li
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730030, Gansu, China; Sheep Breeding Biotechnology Engineering Laboratory of Gansu Province, Minqin 733300, Gansu, China
| | - Xia Wang
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730030, Gansu, China
| | - Hongyu Zhang
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730030, Gansu, China
| | - Haolin Chen
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730030, Gansu, China
| | - Ningbo Liu
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730030, Gansu, China
| | - Ruilin Xue
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730030, Gansu, China
| | - Xingxu Zhao
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou 730070, Gansu, China
| | - Youji Ma
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730030, Gansu, China; Sheep Breeding Biotechnology Engineering Laboratory of Gansu Province, Minqin 733300, Gansu, China.
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38
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The Role of Number of Copies, Structure, Behavior and Copy Number Variations (CNV) of the Y Chromosome in Male Infertility. Genes (Basel) 2019; 11:genes11010040. [PMID: 31905733 PMCID: PMC7016774 DOI: 10.3390/genes11010040] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Revised: 12/17/2019] [Accepted: 12/23/2019] [Indexed: 12/11/2022] Open
Abstract
The World Health Organization (WHO) defines infertility as the inability of a sexually active, non-contracepting couple to achieve spontaneous pregnancy within one year. Statistics show that the two sexes are equally at risk. Several causes may be responsible for male infertility; however, in 30–40% of cases a diagnosis of idiopathic male infertility is made in men with normal urogenital anatomy, no history of familial fertility-related diseases and a normal panel of values as for endocrine, genetic and biochemical markers. Idiopathic male infertility may be the result of gene/environment interactions, genetic and epigenetic abnormalities. Numerical and structural anomalies of the Y chromosome represent a minor yet significant proportion and are the topic discussed in this review. We searched the PubMed database and major search engines for reports about Y-linked male infertility. We present cases of Y-linked male infertility in terms of (i) anomalies of the Y chromosome structure/number; (ii) Y chromosome misbehavior in a normal genetic background; (iii) Y chromosome copy number variations (CNVs). We discuss possible explanations of male infertility caused by mutations, lower or higher number of copies of otherwise wild type, Y-linked sequences. Despite Y chromosome structural anomalies are not a major cause of male infertility, in case of negative results and of normal DNA sequencing of the ascertained genes causing infertility and mapping on this chromosome, we recommend an analysis of the karyotype integrity in all cases of idiopathic fertility impairment, with an emphasis on the structure and number of this chromosome.
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Zagore LL, Sweet TJ, Hannigan MM, Weyn-Vanhentenryck SM, Jobava R, Hatzoglou M, Zhang C, Licatalosi DD. DAZL Regulates Germ Cell Survival through a Network of PolyA-Proximal mRNA Interactions. Cell Rep 2019; 25:1225-1240.e6. [PMID: 30380414 PMCID: PMC6878787 DOI: 10.1016/j.celrep.2018.10.012] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2018] [Revised: 07/26/2018] [Accepted: 10/01/2018] [Indexed: 01/25/2023] Open
Abstract
The RNA binding protein DAZL is essential for gametogenesis, but its direct in vivo functions, RNA targets, and the molecular basis for germ cell loss in Dazl-null mice are unknown. Here, we mapped transcriptome-wide DAZL-RNA interactions in vivo, revealing DAZL binding to thousands of mRNAs via polyA-proximal 3′ UTR interactions. In parallel, fluorescence-activated cell sorting and RNA-seq identified mRNAs sensitive to DAZL deletion in male germ cells. Despite binding a broad set of mRNAs, integrative analyses indicate that DAZL post-transcriptionally controls only a subset of its mRNA targets, namely those corresponding to a network of genes that are critical for germ cell proliferation and survival. In addition, we provide evidence that polyA sequences have key roles in specifying DAZL-RNA interactions across the transcriptome. Our results reveal a mechanism for DAZL-RNA binding and illustrate that DAZL functions as a master regulator of a post-transcriptional mRNA program essential for germ cell survival. Combining transgenic mice, FACS, and multiple RNA-profiling methods, Zagore et al. show that DAZL binds thousands of mRNAs via GUU sites upstream of polyA tails. Loss of DAZL results in decreased mRNA levels for a network of genes that are essential for germ cell proliferation and differentiation.
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Affiliation(s)
- Leah L Zagore
- Center for RNA Science and Therapeutics, Case Western Reserve University, Cleveland, OH 44106, USA
| | - Thomas J Sweet
- Center for RNA Science and Therapeutics, Case Western Reserve University, Cleveland, OH 44106, USA
| | - Molly M Hannigan
- Center for RNA Science and Therapeutics, Case Western Reserve University, Cleveland, OH 44106, USA
| | | | - Raul Jobava
- Department of Genetics and Genome Sciences, Case Western Reserve University, Cleveland, OH 44106, USA
| | - Maria Hatzoglou
- Department of Genetics and Genome Sciences, Case Western Reserve University, Cleveland, OH 44106, USA
| | - Chaolin Zhang
- Center for Motor Neuron Biology and Disease, Columbia University, New York, NY 10032, USA
| | - Donny D Licatalosi
- Center for RNA Science and Therapeutics, Case Western Reserve University, Cleveland, OH 44106, USA.
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40
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Karaman M, Budak H, Çiftci M. Amoxicillin and gentamicin antibiotics treatment adversely influence the fertility and morphology through decreasing the Dazl gene expression level and increasing the oxidative stress. Arch Physiol Biochem 2019; 125:447-455. [PMID: 29925282 DOI: 10.1080/13813455.2018.1482354] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
The present study was designed to explain the impact of amoxicillin, gentamicin, and cefazolin on the oxidative stress (OS) and reproductivity in the mouse testes. Our data showed that reduced glutathione (GSH) level, which is a marker for OS, strikingly reduced and hydrogen peroxide (H2O2) level, which acts as a signaling molecule in mammalian germ cells, strikingly increased with amoxicillin, gentamicin, and cefazolin treatment. The gene expression and enzymatic activity of superoxide dismutase (SOD), catalase (CAT), glutathione reductase (GR), glucose-6-phosphate dehydrogenase (G6PD), and glutathione-S-transferases (GST) were significantly affected in the presence of these antibiotics. Also, spermatogenesis was adversely affected by suppressing Deleted in Azoospermia (Dazl) gene expression. Finally, oxidative stress and spermatogenesis failure distorted to sperm viability, motility, and morphology in amoxicillin and gentamicin-treated mice.
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Affiliation(s)
- Muhammet Karaman
- Department of Molecular Biology and Genetics, Faculty of Arts and Science, Kilis 7 Aralik University , Kilis , Turkey
- Advanced Technology Application and Research Center (ATACR), Kilis 7 Aralik University , Kilis , Turkey
| | - Harun Budak
- Department of Molecular Biology and Genetics, Faculty of Science, Ataturk University , Erzurum , Turkey
| | - Mehmet Çiftci
- Department of Chemistry, Faculty of Art and Science, Bingol University , Bingol , Turkey
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41
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Schmoker AM, Driscoll HE, Geiger SR, Vincent JJ, Ebert AM, Ballif BA. An in silico proteomics screen to predict and prioritize protein-protein interactions dependent on post-translationally modified motifs. Bioinformatics 2019; 34:3898-3906. [PMID: 29868839 DOI: 10.1093/bioinformatics/bty434] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2018] [Accepted: 05/24/2018] [Indexed: 11/13/2022] Open
Abstract
Motivation The development of proteomic methods for the characterization of domain/motif interactions has greatly expanded our understanding of signal transduction. However, proteomics-based binding screens have limitations including that the queried tissue or cell type may not harbor all potential interacting partners or post-translational modifications (PTMs) required for the interaction. Therefore, we sought a generalizable, complementary in silico approach to identify potentially novel motif and PTM-dependent binding partners of high priority. Results We used as an initial example the interaction between the Src homology 2 (SH2) domains of the adaptor proteins CT10 regulator of kinase (CRK) and CRK-like (CRKL) and phosphorylated-YXXP motifs. Employing well-curated, publicly-available resources, we scored and prioritized potential CRK/CRKL-SH2 interactors possessing signature characteristics of known interacting partners. Our approach gave high priority scores to 102 of the >9000 YXXP motif-containing proteins. Within this 102 were 21 of the 25 curated CRK/CRKL-SH2-binding partners showing a more than 80-fold enrichment. Several predicted interactors were validated biochemically. To demonstrate generalized applicability, we used our workflow to predict protein-protein interactions dependent upon motif-specific arginine methylation. Our data demonstrate the applicability of our approach to, conceivably, any modular binding domain that recognizes a specific post-translationally modified motif. Supplementary information Supplementary data are available at Bioinformatics online.
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Affiliation(s)
- Anna M Schmoker
- Department of Biology, University of Vermont, Burlington, VT, USA
| | - Heather E Driscoll
- Vermont Genetics Network Bioinformatics Core, University of Vermont, Burlington, VT, USA.,Department of Biology, Norwich University, Northfield, VT, USA
| | | | - James J Vincent
- Department of Biology, University of Vermont, Burlington, VT, USA.,Vermont Genetics Network Bioinformatics Core, University of Vermont, Burlington, VT, USA
| | - Alicia M Ebert
- Department of Biology, University of Vermont, Burlington, VT, USA
| | - Bryan A Ballif
- Department of Biology, University of Vermont, Burlington, VT, USA
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Sampannang A, Arun S, Burawat J, Sukhorum W, Iamsaard S. Expression of testicular phosphorylated proteins in types 1 and 2 diabetes mellitus in mice: An experimental study. Int J Reprod Biomed 2019; 17:567-576. [PMID: 31583374 PMCID: PMC6745087 DOI: 10.18502/ijrm.v17i8.4822] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Revised: 03/28/2019] [Accepted: 05/08/2019] [Indexed: 12/28/2022] Open
Abstract
Background Types 1 and 2 diabetes mellitus (DM) are known to be the cause of sub/infertility. However, the comparisons of potential markers in spermatogenesis and steroidogenesis in DM males have never been elucidated. Objective This study aimed to examine the expressions of tyrosine-phosphorylated and steroidogenic acute regulatory (StAR) proteins in testis of DM mice. Materials and Methods Fifty-six male C57BL/6 mice were divided into four groups (n░=░14/ each): control of MLD-STZ (multiple low doses of streptozotocin), MLD-STZ, control of HFD-STZ (high-fat diet with STZ), and HFD-STZ. MLD-STZ mice (type 1 DM) were intraperitoneally (i.p.) injected with STZ at 40░mg/kg BW for five days. HFD-STZ mice (type 2 DM) received an HFD for 14 days and i.p.-induced by STZ at 85░mg/kg BW and fed with HFD. At the end of the experiment (days 36 and 72), the expressions of phosphorylated proteins and StAR were examined. Results Tyrosine phosphorylated proteins were localized in late spermatids, luminal fluid, and Leydig cells. The intensities of phosphorylated 110, 85, 72, 60, and 55░kDas were lower in the 36 day-DM mice. Although such intensities were present in both groups, only 85░kDa in the MLD-STZ mice was higher in HFD mice at 72 days. StAR expressions in both groups were decreased than that of the controls. Conclusion Decreased expressions of StAR and tyrosine-phosphorylated proteins may be directly involved in low testosterone levels and impaired spermatogenesis. These findings support the notion that both DM types play a role in male infertility.
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Affiliation(s)
- Apichakan Sampannang
- Department of Anatomy, Faculty of Medicine, Khon Kaen University, Khon Kaen Thailand
| | - Supatcharee Arun
- Department of Anatomy, Faculty of Medicine, Khon Kaen University, Khon Kaen Thailand
| | - Jaturon Burawat
- Department of Anatomy, Faculty of Medicine, Khon Kaen University, Khon Kaen Thailand
| | - Wannisa Sukhorum
- School of Medicine, Mae Fah Luang University, Chiang Rai Thailand
| | - Sitthichai Iamsaard
- Department of Anatomy, Faculty of Medicine, Khon Kaen University, Khon Kaen Thailand.,Research Institute for Human High Performance and Health Promotion (HHP&HP), Khon Kaen University, Khon Kaen Thailand
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Liu X, Tang Z, Zhang P, Zhu X, Chu Z, Li W, Xu H. Identification and characterization of DAZ family genes in Chinese soft-shell turtle (Pelodiscus sinensis). JOURNAL OF EXPERIMENTAL ZOOLOGY PART B-MOLECULAR AND DEVELOPMENTAL EVOLUTION 2019; 332:258-268. [PMID: 31531931 DOI: 10.1002/jez.b.22900] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2019] [Revised: 07/26/2019] [Accepted: 08/13/2019] [Indexed: 11/12/2022]
Abstract
The DAZ family genes, including boule, dazl, and daz, play pivotal roles in germ cell development and differentiation during gametogenesis in organisms, which have been widely studied in mammals, reptiles, or fishes. Dazl was bisexual expressed in both mitotic and meiotic germ cells, daz was male premeiotic expressed, whereas boule exhibits largely in unisexual meiotic germ cells but bisexual expression in several fishes, however, there is lack of report on boule gene and the evolutionary conservation and divergence of dazl and boule in reptile. Here, both boule and dazl genes were characterized in Pelodiscus sinensis. The quantitative real-time polymerase chain reaction analysis showed that boule and dazl were abundantly expressed in adult ovary and testis but barely in somatic tissues, such as heart, brain, liver, spleen, and kidney. Moreover, through fluorescent in situ hybridization, bisexual and germline-specific expression profiles of boule and dazl messenger RNAs (mRNAs) were demonstrated. Boule mRNA exhibited a maximal meiotic expression in spermatocytes, and a relatively low, but distinct expression in oocytes at meiotic stages in P. sinensis, similar to the expression profile of human boule in ovary. However, dazl mRNA was richly distributed in male germ cells at almost all stages during spermatogenesis, and predominantly expressed in most of stages of oocytes including premeiotic and meiotic stages. These findings imply that boule and dazl would play distinct roles in the sexual differentiation of germ cells during turtle gametogenesis, and the major functions of daz family members involved in germ cell differentiation would be conserved across species including P. sinensis.
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Affiliation(s)
- Xiaoli Liu
- Key Laboratory of Aquatic Genomics, Ministry of Agriculture, Key Laboratory of Tropical & Subtropical Fishery Resource Application & Cultivation, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, China
| | - Zhoukai Tang
- Key Laboratory of Aquatic Genomics, Ministry of Agriculture, Key Laboratory of Tropical & Subtropical Fishery Resource Application & Cultivation, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, China.,Fishery School of Zhejiang Ocean University, Zhoushan, China
| | - Piaoyi Zhang
- Key Laboratory of Aquatic Genomics, Ministry of Agriculture, Key Laboratory of Tropical & Subtropical Fishery Resource Application & Cultivation, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, China
| | - Xinping Zhu
- Key Laboratory of Aquatic Genomics, Ministry of Agriculture, Key Laboratory of Tropical & Subtropical Fishery Resource Application & Cultivation, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, China
| | - Zhangjie Chu
- Fishery School of Zhejiang Ocean University, Zhoushan, China
| | - Wei Li
- Key Laboratory of Aquatic Genomics, Ministry of Agriculture, Key Laboratory of Tropical & Subtropical Fishery Resource Application & Cultivation, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, China
| | - Hongyan Xu
- Key Laboratory of Aquatic Genomics, Ministry of Agriculture, Key Laboratory of Tropical & Subtropical Fishery Resource Application & Cultivation, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, China
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Theil K, Imami K, Rajewsky N. Identification of proteins and miRNAs that specifically bind an mRNA in vivo. Nat Commun 2019; 10:4205. [PMID: 31527589 PMCID: PMC6746756 DOI: 10.1038/s41467-019-12050-7] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2018] [Accepted: 08/19/2019] [Indexed: 12/26/2022] Open
Abstract
Understanding regulation of an mRNA requires knowledge of its regulators. However, methods for reliable de-novo identification of proteins binding to a particular RNA are scarce and were thus far only successfully applied to abundant noncoding RNAs in cell culture. Here, we present vIPR, an RNA-protein crosslink, RNA pulldown, and shotgun proteomics approach to identify proteins bound to selected mRNAs in C. elegans. Applying vIPR to the germline-specific transcript gld-1 led to enrichment of known and novel interactors. By comparing enrichment upon gld-1 and lin-41 pulldown, we demonstrate that vIPR recovers both common and specific RNA-binding proteins, and we validate DAZ-1 as a specific gld-1 regulator. Finally, combining vIPR with small RNA sequencing, we recover known and biologically important transcript-specific miRNA interactions, and we identify miR-84 as a specific interactor of the gld-1 transcript. We envision that vIPR will provide a platform for investigating RNA in vivo regulation in diverse biological systems.
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Affiliation(s)
- Kathrin Theil
- Systems Biology of Gene Regulatory Elements, Berlin Institute for Medical Systems Biology (BIMSB), Max Delbrück Center for Molecular Medicine in the Helmholtz Association (MDC), 13125, Berlin, Germany.
| | - Koshi Imami
- Proteome Dynamics, Max Delbrück Center for Molecular Medicine in the Helmholtz Association (MDC), 13125, Berlin, Germany
- Laboratory of Molecular and Cellular BioAnalysis, Graduate School of Pharmaceutical Sciences, Kyoto University, Kyoto, 606-8501, Japan
| | - Nikolaus Rajewsky
- Systems Biology of Gene Regulatory Elements, Berlin Institute for Medical Systems Biology (BIMSB), Max Delbrück Center for Molecular Medicine in the Helmholtz Association (MDC), 13125, Berlin, Germany.
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Pineau C, Hikmet F, Zhang C, Oksvold P, Chen S, Fagerberg L, Uhlén M, Lindskog C. Cell Type-Specific Expression of Testis Elevated Genes Based on Transcriptomics and Antibody-Based Proteomics. J Proteome Res 2019; 18:4215-4230. [PMID: 31429579 DOI: 10.1021/acs.jproteome.9b00351] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
One of the most complex organs in the human body is the testis, where spermatogenesis takes place. This physiological process involves thousands of genes and proteins that are activated and repressed, making testis the organ with the highest number of tissue-specific genes. However, the function of a large proportion of the corresponding proteins remains unknown and testis harbors many missing proteins (MPs), defined as products of protein-coding genes that lack experimental mass spectrometry evidence. Here, an integrated omics approach was used for exploring the cell type-specific protein expression of genes with an elevated expression in testis. By combining genome-wide transcriptomics analysis with immunohistochemistry, more than 500 proteins with distinct testicular protein expression patterns were identified, and these were selected for in-depth characterization of their in situ expression in eight different testicular cell types. The cell type-specific protein expression patterns allowed us to identify six distinct clusters of expression at different stages of spermatogenesis. The analysis highlighted numerous poorly characterized proteins in each of these clusters whose expression overlapped with that of known proteins involved in spermatogenesis, including 85 proteins with an unknown function and 60 proteins that previously have been classified as MPs. Furthermore, we were able to characterize the in situ distribution of several proteins that previously lacked spatial information and cell type-specific expression within the testis. The testis elevated expression levels both at the RNA and protein levels suggest that these proteins are related to testis-specific functions. In summary, the study demonstrates the power of combining genome-wide transcriptomics analysis with antibody-based protein profiling to explore the cell type-specific expression of both well-known proteins and MPs. The analyzed proteins constitute important targets for further testis-specific research in male reproductive disorders.
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Affiliation(s)
- Charles Pineau
- Univ Rennes , Inserm, EHESP, Irset (Institut de Recherche en Santé, Environnement et Travail), UMR_S 1085 , 35042 Rennes Cedex, France.,Protim , Univ Rennes , 35042 Rennes Cedex, France
| | - Feria Hikmet
- Uppsala University , Department of Immunology, Genetics and Pathology, Rudbeck Laboratory , 75185 Uppsala , Sweden
| | - Cheng Zhang
- Science for Life Laboratory , School of Engineering Sciences in Chemistry, Biotechnology and Health, KTH-Royal Institute of Technology , 17121 Stockholm , Sweden
| | - Per Oksvold
- Science for Life Laboratory , School of Engineering Sciences in Chemistry, Biotechnology and Health, KTH-Royal Institute of Technology , 17121 Stockholm , Sweden
| | - Shuqi Chen
- Science for Life Laboratory , School of Engineering Sciences in Chemistry, Biotechnology and Health, KTH-Royal Institute of Technology , 17121 Stockholm , Sweden
| | - Linn Fagerberg
- Science for Life Laboratory , School of Engineering Sciences in Chemistry, Biotechnology and Health, KTH-Royal Institute of Technology , 17121 Stockholm , Sweden
| | - Mathias Uhlén
- Science for Life Laboratory , School of Engineering Sciences in Chemistry, Biotechnology and Health, KTH-Royal Institute of Technology , 17121 Stockholm , Sweden
| | - Cecilia Lindskog
- Uppsala University , Department of Immunology, Genetics and Pathology, Rudbeck Laboratory , 75185 Uppsala , Sweden
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Gao Y, Zhao Y, Zhang H, Zhang P, Liu J, Feng Y, Men Y, Li L, Shen W, Sun Z, Min L. Pubertal exposure to low doses of zearalenone disrupting spermatogenesis through ERα related genetic and epigenetic pathways. Toxicol Lett 2019; 315:31-38. [PMID: 31419471 DOI: 10.1016/j.toxlet.2019.08.007] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Revised: 08/06/2019] [Accepted: 08/08/2019] [Indexed: 12/21/2022]
Abstract
Endocrine disruptor zearalenone (ZEA) has been found to damage the reproductive system especially spermatogenesis. In our previous report, we have found that low dose (lower than No-Observed Effect Level, NOEL) ZEA exposure disturbed mouse spermatogenesis and diminished mouse semen quality. The purpose of current investigation was to explore the underlying mechanisms of pubertal low dose ZEA exposure upsetting spermatogenesis. And it was demonstrated that pubertal low dose ZEA exposure disrupted the meiosis process and the important genetic pathways to inhibit the spermatogenesis and even to diminish the semen quality with the decrease in spermatozoa motility and concentration. The DNA methylation markers 5mC and 5hmC were decreased, the histone methylation marker H3K27 was increased, at the same time estrogen receptor alpha was diminished in mouse testis after pubertal low dose ZEA exposure. The data indicate that the disruption in spermatogenesis by pubertal low dose ZEA exposure may be through the alterations in genetic and epigenetic pathways, and the interactions with estrogen receptor signaling pathway. Therefore, we should pay great attention on ZEA exposure to reduce its adverse impacts on male reproductive health.
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Affiliation(s)
- Yishan Gao
- College of Animal Sciences and Technology, Qingdao Agricultural University, Qingdao 266109, PR China
| | - Yong Zhao
- College of Life Sciences, Qingdao Agricultural University, Qingdao 266109, PR China
| | - Hongfu Zhang
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, PR China
| | - Pengfei Zhang
- College of Animal Sciences and Technology, Qingdao Agricultural University, Qingdao 266109, PR China; College of Life Sciences, Qingdao Agricultural University, Qingdao 266109, PR China
| | - Jing Liu
- University research core, Qingdao Agricultural University, Qingdao 266109, PR China
| | - Yanni Feng
- College of Veterinary Sciences, Qingdao Agricultural University, Qingdao 266109, PR China
| | - Yuhao Men
- College of Animal Sciences and Technology, Qingdao Agricultural University, Qingdao 266109, PR China
| | - Lan Li
- College of Life Sciences, Qingdao Agricultural University, Qingdao 266109, PR China
| | - Wei Shen
- College of Life Sciences, Qingdao Agricultural University, Qingdao 266109, PR China
| | - Zhongyi Sun
- Center for Reproductive Medicine, Shenzhen Hospital, Peking University, Shenzhen 518036, PR China
| | - Lingjiang Min
- College of Animal Sciences and Technology, Qingdao Agricultural University, Qingdao 266109, PR China.
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Fouchécourt S, Picolo F, Elis S, Lécureuil C, Thélie A, Govoroun M, Brégeon M, Papillier P, Lareyre JJ, Monget P. An evolutionary approach to recover genes predominantly expressed in the testes of the zebrafish, chicken and mouse. BMC Evol Biol 2019; 19:137. [PMID: 31269894 PMCID: PMC6609395 DOI: 10.1186/s12862-019-1462-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2019] [Accepted: 06/17/2019] [Indexed: 11/15/2022] Open
Abstract
Background Previously, we have demonstrated that genes involved in ovarian function are highly conserved throughout evolution. In this study, we aimed to document the conservation of genes involved in spermatogenesis from flies to vertebrates and their expression profiles in vertebrates. Results We retrieved 379 Drosophila melanogaster genes that are functionally involved in male reproduction according to their mutant phenotypes and listed their vertebrate orthologs. 83% of the fly genes have at least one vertebrate ortholog for a total of 625 mouse orthologs. This conservation percentage is almost twice as high as the 42% rate for the whole fly genome and is similar to that previously found for genes preferentially expressed in ovaries. Of the 625 mouse orthologs, we selected 68 mouse genes of interest, 42 of which exhibited a predominant relative expression in testes and 26 were their paralogs. These 68 mouse genes exhibited 144 and 60 orthologs in chicken and zebrafish, respectively, gathered in 28 groups of paralogs. Almost two thirds of the chicken orthologs and half of the zebrafish orthologs exhibited a relative expression ≥50% in testis. Finally, our focus on functional in silico data demonstrated that most of these genes were involved in the germ cell process, primarily in structure elaboration/maintenance and in acid nucleic metabolism. Conclusion Our work confirms that the genes involved in germ cell development are highly conserved across evolution in vertebrates and invertebrates and display a high rate of conservation of preferential testicular expression among vertebrates. Among the genes highlighted in this study, three mouse genes (Lrrc46, Pabpc6 and Pkd2l1) have not previously been described in the testes, neither their zebrafish nor chicken orthologs. The phylogenetic approach developed in this study finally allows considering new testicular genes for further fundamental studies in vertebrates, including model species (mouse and zebrafish). Electronic supplementary material The online version of this article (10.1186/s12862-019-1462-8) contains supplementary material, which is available to authorized users.
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Affiliation(s)
| | - Floriane Picolo
- PRC, CNRS, IFCE, INRA, Université de Tours, 37380, Nouzilly, France
| | - Sébastien Elis
- PRC, CNRS, IFCE, INRA, Université de Tours, 37380, Nouzilly, France
| | - Charlotte Lécureuil
- Institut de Recherche sur la Biologie de l'Insecte (IRBI), UMR 7261, CNRS-Université de Tours, 37200, Tours, France
| | - Aurore Thélie
- PRC, CNRS, IFCE, INRA, Université de Tours, 37380, Nouzilly, France
| | - Marina Govoroun
- PRC, CNRS, IFCE, INRA, Université de Tours, 37380, Nouzilly, France
| | - Mégane Brégeon
- PRC, CNRS, IFCE, INRA, Université de Tours, 37380, Nouzilly, France
| | - Pascal Papillier
- PRC, CNRS, IFCE, INRA, Université de Tours, 37380, Nouzilly, France
| | - Jean-Jacques Lareyre
- INRA, UPR 1037, Laboratory of Fish Physiology and Genomics (LPGP), BIOSIT, OUEST-genopole, Bât. 16, Campus de Beaulieu, cedex, 35042, Rennes, France
| | - Philippe Monget
- PRC, CNRS, IFCE, INRA, Université de Tours, 37380, Nouzilly, France
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Oh D, Houston DW. RNA Localization in the Vertebrate Oocyte: Establishment of Oocyte Polarity and Localized mRNA Assemblages. Results Probl Cell Differ 2019; 63:189-208. [PMID: 28779319 PMCID: PMC6538070 DOI: 10.1007/978-3-319-60855-6_9] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
RNA localization is a fundamental mechanism for controlling cell structure and function. Early development in fish and amphibians requires the localization of specific mRNAs to establish the initial differences in cell fates prior to the onset of zygotic genome activation. RNA localization in these oocytes (e.g., Xenopus and zebrafish) requires that animal-vegetal polarity be established early in oogenesis, mediated by formation of the Balbiani body/mitochondrial cloud. This structure serves as a platform for assembly and transport of germline determinants to the future vegetal pole and also sets up the machinery for the localization of non-germline transcripts later in oogenesis. Understanding these polarization and localization mechanisms is critical for understanding the basis for early embryonic development in these organisms and also for understanding the role of RNA compartmentalization in animal gametogenesis. Here we outline recent advances in elucidating the molecular basis for the establishment of oocyte polarity at the level of Balbiani body assembly as well as the formation of RNP assemblies for early and late pathway mRNA localization in the oocyte.
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Affiliation(s)
- Denise Oh
- Department of Biology, The University of Iowa, 257 BB, Iowa City, IA, 52242, USA
| | - Douglas W Houston
- Department of Biology, The University of Iowa, 257 BB, Iowa City, IA, 52242, USA.
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Gegenschatz-Schmid K, Verkauskas G, Stadler MB, Hadziselimovic F. Genes located in Y-chromosomal regions important for male fertility show altered transcript levels in cryptorchidism and respond to curative hormone treatment. Basic Clin Androl 2019; 29:8. [PMID: 31171972 PMCID: PMC6545630 DOI: 10.1186/s12610-019-0089-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2019] [Accepted: 04/24/2019] [Indexed: 01/27/2023] Open
Abstract
Background Undescended (cryptorchid) testes in patients with defective mini-puberty and low testosterone levels contain gonocytes that fail to differentiate normally, which impairs the development of Ad spermatogonia and ultimately leads to adult infertility. Treatment with the gonadotropin-releasing hormone agonist GnRHa increases luteinizing hormone and testosterone and rescues fertility in the majority of pathological cryptorchid testes. Several Y-chromosomal genes in the male-specific Y region (MSY) are essential for spermatogenesis, testis development and function, and are associated with azoospermia, infertility and cryptorchidism. In this study, we analyzed the expression of MSY genes in testes with Ad spermatogonia (low infertility risk patients) as compared to testes lacking Ad spermatogonia (high infertility risk) before and after curative GnRHa treatment, and in correlation to their location on the Y-chromosome. Results Twenty genes that are up- or down-regulated in the Ad- group are in the X-degenerate or the ampliconic region, respectively. GnRHa treatment increases mRNA levels of 14 genes in the ampliconic region and decreases mRNA levels of 10 genes in the X-degenerate region. Conclusion Our findings implicate Y-chromosomal genes, including USP9Y, UTY, TXLNGY, RBMY1B, RBMY1E, RBMY1J and TSPY4, some of which are known to be important for spermatogenesis, in the curative hormonal treatment of cryptorchidism-induced infertility.
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Affiliation(s)
| | - Gilvydas Verkauskas
- 2Children's Surgery Centre, Faculty of Medicine, Vilnius of University, 01513 Vilnius, Lithuania
| | - Michael B Stadler
- 3Friedrich Miescher Institute for Biomedical Research, Basel, Switzerland.,4Swiss Institute of Bioinformatics, Basel, Switzerland
| | - Faruk Hadziselimovic
- Cryptorchidism Research Institute, Kindermedizinisches Zentrum Liestal, 4410 Liestal, Switzerland
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Li T, Wang X, Zhang H, Chen Z, Zhao X, Ma Y. Histomorphological Comparisons and Expression Patterns of BOLL Gene in Sheep Testes at Different Development Stages. Animals (Basel) 2019; 9:ani9030105. [PMID: 30901845 PMCID: PMC6466207 DOI: 10.3390/ani9030105] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2019] [Revised: 03/08/2019] [Accepted: 03/18/2019] [Indexed: 12/11/2022] Open
Abstract
BOLL is implicated in mammalian testicular function maintenance and spermatogenesis. To understand the expression patterns and biological functions of sheep BOLL, we examined the expression and immunolocalization of BOLL in the developing testes of Small-Tail Han sheep aged 0 days (D0), 2 months (2M), 5 months (5M), 1 year (1Y), and 2 years (2Y), by qPCR, Western blot, and immunohistochemistry methods. Firstly, morphological studies revealed that, in addition to spermatogonia, ordered and clear spermatocytes, as well as round and elongated spermatids and sperm, were found in the 1Y and 2Y testicular seminiferous tubules of the sheep testes, compared with the D0, 2M, and 5M testes, as analyzed by hematoxylin and eosin (H&E) staining. The diameter and area of the seminiferous tubules, epithelial thickness, and the area and perimeter of the tubule lumens gradually increased with age. BOLL was specifically expressed in testes and upregulation of BOLL transcript expression was higher in the testes of the 1Y and 2Y groups than in those of the D0, 2M, and 5M groups. Similarly, BOLL protein was expressed mainly in the 1Y and 2Y testes, ranging from primary spermatocytes to round spermatids, as well as in the spermatozoa. This study is the first demonstration that sheep BOLL might serve as a key regulator of the spermiogenesis involved in sperm maturity, in addition to its role as a crucial meiotic regulator.
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Affiliation(s)
- Taotao Li
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730070, China.
| | - Xia Wang
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730070, China.
| | - Hongyu Zhang
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730070, China.
| | - Zhili Chen
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730070, China.
| | - Xingxu Zhao
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou 730070, China.
| | - Youji Ma
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730070, China.
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