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De los Reyes M, Dettleff P, Palomino J, Peralta OA, Vergara A. Dynamic Expression of Follicle-Stimulating Hormone and Estrogen mRNA Receptors Associated with microRNAs 34a and -let-7c in Canine Follicles during the Estrous Cycle. Animals (Basel) 2024; 14:214. [PMID: 38254383 PMCID: PMC10812696 DOI: 10.3390/ani14020214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 12/19/2023] [Accepted: 01/03/2024] [Indexed: 01/24/2024] Open
Abstract
The genes encoding for estrogen receptor (ESR2) and follicle-stimulating hormone receptor (FSHR) play crucial roles in ovarian follicular development. This study aimed to determine the expression levels of miRNAs predicted against FSHR and ESR2 mRNAs in follicular cells related to their target genes during the estrous cycle in canines. Antral follicles were dissected from 72 ovaries following ovariohysterectomies. MiRNAs regulating FSHR and ESR2 genes were selected from miRNA databases, and mature miRNA and mRNA expression profiling was performed using real-time polymerase chain reaction (PCR). The best miRNA for each target gene was selected considering the quantitative PCR (qPCR) performance and target prediction probability, selecting only miRNAs with a binding p-value of 1.0, and choosing cfa-miR-34a and cfa-let-7c for FSHR and ESR2, respectively. The expression levels comparing the different phases of the estrous cycle were evaluated using ANOVA. Pearson correlations between the expression pattern of each miRNA and their target genes were performed. Each miRNA and its target genes were expressed in the granulosa cells in all estrous phases. FSHR remained low in anestrus and proestrus, increased (p < 0.05) to the highest level in estrus, and decreased (p < 0.05) in diestrus. ESR2 showed the same trend as FSHR, with the highest (p < 0.05) expression in estrus and the lowest (p < 0.05) in anestrus and proestrus. A tendency for an inverse relationship was observed between the expression of miR-34a and FSHR only in the anestrus phase, while an inverse correlation (r = -0.8) was found between miRNA-7c and ESR2 (p < 0.01). The expression profile of miR-34a and miR-let-7c and their predicted target genes of dog ovarian follicles throughout the estrous cycle observed in this study suggest a role in the transcriptional regulation of FSHR and ESR2, which is the first evidence of the involvement of these miRNAs in the canine follicular function.
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Affiliation(s)
- Monica De los Reyes
- Laboratory of Animal Reproduction, Faculty of Veterinary Sciences, University of Chile, Santiago 8820000, Chile;
| | - Phillip Dettleff
- School of Veterinary Medicine, Faculty of Agronomy and Natural Systems, Faculty of Biological Sciences and Faculty of Medicine, Pontifical Catholic University of Chile, Santiago 8320165, Chile; (P.D.); (O.A.P.)
| | - Jaime Palomino
- School of Veterinary Medicine, Faculty of Medical Sciences, Bernardo O’Higgins University, Santiago 8370993, Chile;
| | - Oscar A. Peralta
- School of Veterinary Medicine, Faculty of Agronomy and Natural Systems, Faculty of Biological Sciences and Faculty of Medicine, Pontifical Catholic University of Chile, Santiago 8320165, Chile; (P.D.); (O.A.P.)
| | - Ana Vergara
- Laboratory of Animal Reproduction, Faculty of Veterinary Sciences, University of Chile, Santiago 8820000, Chile;
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Human in vitro spermatogenesis as a regenerative therapy - where do we stand? Nat Rev Urol 2023:10.1038/s41585-023-00723-4. [PMID: 36750655 DOI: 10.1038/s41585-023-00723-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/04/2023] [Indexed: 02/09/2023]
Abstract
Spermatogenesis involves precise temporal and spatial gene expression and cell signalling to reach a coordinated balance between self-renewal and differentiation of spermatogonial stem cells through various germ cell states including mitosis, and meiosis I and II, which result in the generation of haploid cells with a unique genetic identity. Subsequently, these round spermatids undergo a series of morphological changes to shed excess cytoplast, develop a midpiece and tail, and undergo DNA repackaging to eventually form millions of spermatozoa. The goal of recreating this process in vitro has been pursued since the 1920s as a tool to treat male factor infertility in patients with azoospermia. Continued advances in reproductive bioengineering led to successful generation of mature, functional sperm in mice and, in the past 3 years, in humans. Multiple approaches to study human in vitro spermatogenesis have been proposed, but technical and ethical obstacles have limited the ability to complete spermiogenesis, and further work is needed to establish a robust culture system for clinical application.
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Bhattacharya I, Dey S, Banerjee A. Revisiting the gonadotropic regulation of mammalian spermatogenesis: evolving lessons during the past decade. Front Endocrinol (Lausanne) 2023; 14:1110572. [PMID: 37124741 PMCID: PMC10140312 DOI: 10.3389/fendo.2023.1110572] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Accepted: 03/23/2023] [Indexed: 05/02/2023] Open
Abstract
Spermatogenesis is a multi-step process of male germ cell (Gc) division and differentiation which occurs in the seminiferous tubules of the testes under the regulation of gonadotropins - Follicle Stimulating Hormone (FSH) and Luteinising hormone (LH). It is a highly coordinated event regulated by the surrounding somatic testicular cells such as the Sertoli cells (Sc), Leydig cells (Lc), and Peritubular myoid cells (PTc). FSH targets Sc and supports the expansion and differentiation of pre-meiotic Gc, whereas, LH operates via Lc to produce Testosterone (T), the testicular androgen. T acts on all somatic cells e.g.- Lc, PTc and Sc, and promotes the blood-testis barrier (BTB) formation, completion of Gc meiosis, and spermiation. Studies with hypophysectomised or chemically ablated animal models and hypogonadal (hpg) mice supplemented with gonadotropins to genetically manipulated mouse models have revealed the selective and synergistic role(s) of hormones in regulating male fertility. We here have briefly summarized the present concept of hormonal control of spermatogenesis in rodents and primates. We also have highlighted some of the key critical questions yet to be answered in the field of male reproductive health which might have potential implications for infertility and contraceptive research in the future.
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Affiliation(s)
- Indrashis Bhattacharya
- Department of Zoology, School of Biological Science, Central University of Kerala, Kasaragod, Kerala, India
- *Correspondence: Arnab Banerjee, ; Indrashis Bhattacharya,
| | - Souvik Dey
- Manipal Centre for Biotherapeutics Research, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - Arnab Banerjee
- Department of Biological Sciences, Birla Institute of Technology and Science (BITS) Pilani, Goa, India
- *Correspondence: Arnab Banerjee, ; Indrashis Bhattacharya,
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Yan H, Li C, Zou C, Xin X, Li X, Li H, Li Y, Li Z, Wang Y, Chen H, Ge RS. Perfluoroundecanoic acid inhibits Leydig cell development in pubertal male rats via inducing oxidative stress and autophagy. Toxicol Appl Pharmacol 2021; 415:115440. [PMID: 33549592 DOI: 10.1016/j.taap.2021.115440] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Revised: 01/29/2021] [Accepted: 02/01/2021] [Indexed: 01/09/2023]
Abstract
Perfluoroundecanoic acid (PFUnA) is one of long-chain perfluoroalkyl carboxylic acids. However, the effect of PFUnA on pubertal development of Leydig cells remains unclear. The goal of this study was to investigate the effect of PFUnA on Leydig cell development in pubertal male rats. We orally dosed male Sprague-Dawley rats (age 35 days) with PFUnA at doses of 0, 1, 5, and 10 mg/kg/day from postnatal day (PND) 35 to PND 56. Serum testosterone and luteinizing hormone levels were remarkably reduced by PFUnA at ≥1 mg/kg while serum follicle-stimulating hormone levels were lowered at 5 and 10 mg/kg. PFUnA down-regulated the expression of Lhcgr, Scarb1, Star, Cyp11a1, Hsd3b1, Cyp17a1, Hsd17b3, Hsd11b1, Insl3, Nr5a1, Fshr, Dhh, Sod1, and Sod2 and their proteins in the testis and the expression of Lhb and Fshb in the pituitary. PFUnA reduced Leydig cell number at 5 and 10 mg/kg. PFUnA induced oxidative stress and increased autophagy. These may result from the inhibition of phosphorylation of mTOR, AKT1, AKT2, and ERK1/2 in the testis. In conclusion, PFUnA exhibits inhibitory effects on pubertal Leydig cell development possibly via inducing oxidative stress and increasing autophagy.
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Affiliation(s)
- Haoni Yan
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Changchang Li
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Cheng Zou
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Xiu Xin
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Xiaoheng Li
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Huitao Li
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Yang Li
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Zengqiang Li
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Yiyan Wang
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Haolin Chen
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China.
| | - Ren-Shan Ge
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China.
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Bhattacharya I, Basu S, Pradhan BS, Sarkar H, Nagarajan P, Majumdar SS. Testosterone augments FSH signaling by upregulating the expression and activity of FSH-Receptor in Pubertal Primate Sertoli cells. Mol Cell Endocrinol 2019; 482:70-80. [PMID: 30579957 DOI: 10.1016/j.mce.2018.12.012] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/07/2018] [Revised: 12/16/2018] [Accepted: 12/18/2018] [Indexed: 11/30/2022]
Abstract
The synergistic actions of Testosterone (T) and FSH via testicular Sertoli cells (Sc) regulate male fertility. We have previously reported that the actions of these hormones (T and FSH) in infant monkey testes are restricted only to the expansion of Sc and spermatogonial cells. The robust differentiation of male Germ cells (Gc) occurs after pubertal maturation of testis. The present study was aimed to investigate the molecular basis of the synergy between T and FSH action in pubertal primate (Macaca mulatta) Sc. Using primary Sc culture, we here have demonstrated that T (but not FSH) downregulated AMH and Inhibin-β-B (INHBB) mRNAs in pubertal Sc. We also found that, prolonged stimulation of T in pubertal Sc significantly elevated the expression of genes involved in FSH signaling pathway like FSH-Receptor (FSHR), GNAS and RIC8B, and this was associated with a rise in cAMP production. T also augmented FSH induced expression of genes like SCF, GDNF, ABP and Transferrin (TF) in pubertal Sc. We therefore conclude that T acts in synergy with FSH signaling in pubertal Sc. Such a coordinated network of hormonal signaling in Sc may facilitate the timely onset of the first spermatogenic wave in pubertal primates and is responsible for quantitatively and qualitatively normal spermatogenesis.
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Affiliation(s)
- Indrashis Bhattacharya
- Cellular Endocrinology Laboratory, National Institute of Immunology, New Delhi, 110067, India; Primate Research Center, National Institute of Immunology, New Delhi, India; Department of Zoology and Biotechnology, HNB Garhwal University, Srinagar Campus, Uttarakhand, India
| | - Sayon Basu
- Cellular Endocrinology Laboratory, National Institute of Immunology, New Delhi, 110067, India
| | - Bhola Shankar Pradhan
- Cellular Endocrinology Laboratory, National Institute of Immunology, New Delhi, 110067, India
| | - Hironmoy Sarkar
- Cellular Endocrinology Laboratory, National Institute of Immunology, New Delhi, 110067, India; Department of Microbiology, Raiganj University, Raiganj, West Bengal, India
| | - Perumal Nagarajan
- Primate Research Center, National Institute of Immunology, New Delhi, India
| | - Subeer S Majumdar
- Cellular Endocrinology Laboratory, National Institute of Immunology, New Delhi, 110067, India; Primate Research Center, National Institute of Immunology, New Delhi, India; National Institute of Animal Biotechnology, Hyderabad, Telangana, India.
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TGF-β signaling controls FSHR signaling-reduced ovarian granulosa cell apoptosis through the SMAD4/miR-143 axis. Cell Death Dis 2016; 7:e2476. [PMID: 27882941 PMCID: PMC5260897 DOI: 10.1038/cddis.2016.379] [Citation(s) in RCA: 90] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2016] [Revised: 10/09/2016] [Accepted: 10/17/2016] [Indexed: 01/13/2023]
Abstract
Follicle-stimulating hormone receptor (FSHR) and its intracellular signaling control mammalian follicular development and female infertility. Our previous study showed that FSHR is downregulated during follicular atresia of porcine ovaries. However, its role and regulation in follicular atresia remain unclear. Here, we showed that FSHR knockdown induced porcine granulosa cell (pGC) apoptosis and follicular atresia, and attenuated the levels of intracellular signaling molecules such as PKA, AKT and p-AKT. FSHR was identified as a target of miR-143, a microRNA that was upregulated during porcine follicular atresia. miR-143 enhanced pGC apoptosis by targeting FSHR, and reduced the levels of intracellular signaling molecules. SMAD4, the final molecule in transforming growth factor (TGF)-β signaling, bound to the promoter and induced significant downregulation of miR-143 in vitro and in vivo. Activated TGF-β signaling rescued miR-143-reduced FSHR and intracellular signaling molecules, and miR-143-induced pGC apoptosis. Overall, our findings offer evidence to explain how TGF-β signaling influences and FSHR signaling for regulation of pGC apoptosis and follicular atresia by a specific microRNA, miR-143.
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7
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Advantages of pulsatile hormone treatment for assessing hormone-induced gene expression by cultured rat Sertoli cells. Cell Tissue Res 2016; 368:389-396. [DOI: 10.1007/s00441-016-2410-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2016] [Accepted: 04/06/2016] [Indexed: 01/02/2023]
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8
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Gautam M, Bhattacharya I, Devi YS, Arya SP, Majumdar SS. Hormone responsiveness of cultured Sertoli cells obtained from adult rats after their rapid isolation under less harsh conditions. Andrology 2016; 4:509-19. [PMID: 26991307 DOI: 10.1111/andr.12161] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2015] [Revised: 12/02/2015] [Accepted: 12/20/2015] [Indexed: 01/16/2023]
Abstract
During adulthood, testicular Sertoli cells (Sc) coordinate all stages of germ cell (Gc) development involved in sperm production. However, our understanding about the functions of adult Sc is limited because of the difficulties involved in the process of isolating these cells from the adult testis, mainly because of the presence of large number of advanced Gc which interfere with Sc isolation at this age. Most of our knowledge about Sc function are derived from studies which used pre-pubertal rat Sc (18 ± 2-day old) as it is easy to isolate and culture Sc at this age. To this end, we established a less time consuming and less harsh procedure of isolating Sc from adult (60 days of age) rat testis for facilitating research on Sc-mediated regulation of spermatogenesis during adulthood. The cells were isolated using collagenase digestion at higher temperature, reducing the exposure time of cells to the enzyme. Step-wise digestion with intermittent removal of small clusters of tissue helped in increasing the yield of Sc. Isolated Sc were cultured and treated with FSH and testosterone (T) to evaluate their hormone responsiveness in terms of lactate, E2 , cAMP production. Adult Sc were found to be active and produced high amounts of lactate in a FSH-independent manner. FSH-mediated augmentation of cAMP and E2 production by adult Sc was less as compared with that by pre-pubertal Sc obtained from 18-day-old rats. Androgen-binding ability of adult Sc was significantly higher than pre-pubertal Sc. Although T treatment remarkably augmented expression of Claudin 11, it failed to augment lactate production by adult Sc. This efficient and rapid procedure for isolation and culture of functionally viable adult rat Sertoli cells may pave the way for determining their role in regulation and maintenance of spermatogenesis.
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Affiliation(s)
- M Gautam
- Cellular Endocrinology Laboratory, National Institute of Immunology, New Delhi, India
| | - I Bhattacharya
- Cellular Endocrinology Laboratory, National Institute of Immunology, New Delhi, India
| | - Y S Devi
- Cellular Endocrinology Laboratory, National Institute of Immunology, New Delhi, India
| | - S P Arya
- Cellular Endocrinology Laboratory, National Institute of Immunology, New Delhi, India
| | - S S Majumdar
- Cellular Endocrinology Laboratory, National Institute of Immunology, New Delhi, India
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Bhattacharya I, Gautam M, Majumdar SS. The effect of IBMX and hormones on gene expression by rat Sertoli cells. ACTA ACUST UNITED AC 2015. [DOI: 10.1016/j.jrhm.2014.12.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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10
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Datta TK, Rajput SK, Wee G, Lee K, Folger JK, Smith GW. Requirement of the transcription factor USF1 in bovine oocyte and early embryonic development. Reproduction 2014; 149:203-12. [PMID: 25385722 DOI: 10.1530/rep-14-0445] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Upstream stimulating factor 1 (USF1) is a basic helix-loop-helix transcription factor that specifically binds to E-box DNA motifs, known cis-elements of key oocyte expressed genes essential for oocyte and early embryonic development. However, the functional and regulatory role of USF1 in bovine oocyte and embryo development is not understood. In this study, we demonstrated that USF1 mRNA is maternal in origin and expressed in a stage specific manner during the course of oocyte maturation and preimplantation embryonic development. Immunocytochemical analysis showed detectable USF1 protein during oocyte maturation and early embryonic development with increased abundance at 8-16-cell stage of embryo development, suggesting a potential role in embryonic genome activation. Knockdown of USF1 in germinal vesicle stage oocytes did not affect meiotic maturation or cumulus expansion, but caused significant changes in mRNA abundance for genes associated with oocyte developmental competence. Furthermore, siRNA-mediated depletion of USF1 in presumptive zygote stage embryos demonstrated that USF1 is required for early embryonic development to the blastocyst stage. A similar (USF2) yet unique (TWIST2) expression pattern during oocyte and early embryonic development for related E-box binding transcription factors known to cooperatively bind USF1 implies a potential link to USF1 action. This study demonstrates that USF1 is a maternally derived transcription factor required for bovine early embryonic development, which also functions in regulation of JY1, GDF9, and FST genes associated with oocyte competence.
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Affiliation(s)
- Tirtha K Datta
- Laboratory of Mammalian Reproductive Biology and GenomicsMichigan State University, East Lansing, Michigan 48824, USADepartments of Animal SciencePhysiologyMichigan State University, East Lansing, Michigan 48824, USAAnimal Genomics LaboratoryNational Dairy Research Institute, Animal Biotechnology Centre, Karnal 132001, Haryana, IndiaDepartment of Biology EducationCollege of Education, Chonnam National University, Gwangju, Republic of Korea Laboratory of Mammalian Reproductive Biology and GenomicsMichigan State University, East Lansing, Michigan 48824, USADepartments of Animal SciencePhysiologyMichigan State University, East Lansing, Michigan 48824, USAAnimal Genomics LaboratoryNational Dairy Research Institute, Animal Biotechnology Centre, Karnal 132001, Haryana, IndiaDepartment of Biology EducationCollege of Education, Chonnam National University, Gwangju, Republic of Korea Laboratory of Mammalian Reproductive Biology and GenomicsMichigan State University, East Lansing, Michigan 48824, USADepartments of Animal SciencePhysiologyMichigan State University, East Lansing, Michigan 48824, USAAnimal Genomics LaboratoryNational Dairy Research Institute, Animal Biotechnology Centre, Karnal 132001, Haryana, IndiaDepartment of Biology EducationCollege of Education, Chonnam National University, Gwangju, Republic of Korea
| | - Sandeep K Rajput
- Laboratory of Mammalian Reproductive Biology and GenomicsMichigan State University, East Lansing, Michigan 48824, USADepartments of Animal SciencePhysiologyMichigan State University, East Lansing, Michigan 48824, USAAnimal Genomics LaboratoryNational Dairy Research Institute, Animal Biotechnology Centre, Karnal 132001, Haryana, IndiaDepartment of Biology EducationCollege of Education, Chonnam National University, Gwangju, Republic of Korea Laboratory of Mammalian Reproductive Biology and GenomicsMichigan State University, East Lansing, Michigan 48824, USADepartments of Animal SciencePhysiologyMichigan State University, East Lansing, Michigan 48824, USAAnimal Genomics LaboratoryNational Dairy Research Institute, Animal Biotechnology Centre, Karnal 132001, Haryana, IndiaDepartment of Biology EducationCollege of Education, Chonnam National University, Gwangju, Republic of Korea
| | - Gabbine Wee
- Laboratory of Mammalian Reproductive Biology and GenomicsMichigan State University, East Lansing, Michigan 48824, USADepartments of Animal SciencePhysiologyMichigan State University, East Lansing, Michigan 48824, USAAnimal Genomics LaboratoryNational Dairy Research Institute, Animal Biotechnology Centre, Karnal 132001, Haryana, IndiaDepartment of Biology EducationCollege of Education, Chonnam National University, Gwangju, Republic of Korea Laboratory of Mammalian Reproductive Biology and GenomicsMichigan State University, East Lansing, Michigan 48824, USADepartments of Animal SciencePhysiologyMichigan State University, East Lansing, Michigan 48824, USAAnimal Genomics LaboratoryNational Dairy Research Institute, Animal Biotechnology Centre, Karnal 132001, Haryana, IndiaDepartment of Biology EducationCollege of Education, Chonnam National University, Gwangju, Republic of Korea
| | - KyungBon Lee
- Laboratory of Mammalian Reproductive Biology and GenomicsMichigan State University, East Lansing, Michigan 48824, USADepartments of Animal SciencePhysiologyMichigan State University, East Lansing, Michigan 48824, USAAnimal Genomics LaboratoryNational Dairy Research Institute, Animal Biotechnology Centre, Karnal 132001, Haryana, IndiaDepartment of Biology EducationCollege of Education, Chonnam National University, Gwangju, Republic of Korea Laboratory of Mammalian Reproductive Biology and GenomicsMichigan State University, East Lansing, Michigan 48824, USADepartments of Animal SciencePhysiologyMichigan State University, East Lansing, Michigan 48824, USAAnimal Genomics LaboratoryNational Dairy Research Institute, Animal Biotechnology Centre, Karnal 132001, Haryana, IndiaDepartment of Biology EducationCollege of Education, Chonnam National University, Gwangju, Republic of Korea Laboratory of Mammalian Reproductive Biology and GenomicsMichigan State University, East Lansing, Michigan 48824, USADepartments of Animal SciencePhysiologyMichigan State University, East Lansing, Michigan 48824, USAAnimal Genomics LaboratoryNational Dairy Research Institute, Animal Biotechnology Centre, Karnal 132001, Haryana, IndiaDepartment of Biology EducationCollege of Education, Chonnam National University, Gwangju, Republic of Korea
| | - Joseph K Folger
- Laboratory of Mammalian Reproductive Biology and GenomicsMichigan State University, East Lansing, Michigan 48824, USADepartments of Animal SciencePhysiologyMichigan State University, East Lansing, Michigan 48824, USAAnimal Genomics LaboratoryNational Dairy Research Institute, Animal Biotechnology Centre, Karnal 132001, Haryana, IndiaDepartment of Biology EducationCollege of Education, Chonnam National University, Gwangju, Republic of Korea Laboratory of Mammalian Reproductive Biology and GenomicsMichigan State University, East Lansing, Michigan 48824, USADepartments of Animal SciencePhysiologyMichigan State University, East Lansing, Michigan 48824, USAAnimal Genomics LaboratoryNational Dairy Research Institute, Animal Biotechnology Centre, Karnal 132001, Haryana, IndiaDepartment of Biology EducationCollege of Education, Chonnam National University, Gwangju, Republic of Korea
| | - George W Smith
- Laboratory of Mammalian Reproductive Biology and GenomicsMichigan State University, East Lansing, Michigan 48824, USADepartments of Animal SciencePhysiologyMichigan State University, East Lansing, Michigan 48824, USAAnimal Genomics LaboratoryNational Dairy Research Institute, Animal Biotechnology Centre, Karnal 132001, Haryana, IndiaDepartment of Biology EducationCollege of Education, Chonnam National University, Gwangju, Republic of Korea Laboratory of Mammalian Reproductive Biology and GenomicsMichigan State University, East Lansing, Michigan 48824, USADepartments of Animal SciencePhysiologyMichigan State University, East Lansing, Michigan 48824, USAAnimal Genomics LaboratoryNational Dairy Research Institute, Animal Biotechnology Centre, Karnal 132001, Haryana, IndiaDepartment of Biology EducationCollege of Education, Chonnam National University, Gwangju, Republic of Korea Laboratory of Mammalian Reproductive Biology and GenomicsMichigan State University, East Lansing, Michigan 48824, USADepartments of Animal SciencePhysiologyMichigan State University, East Lansing, Michigan 48824, USAAnimal Genomics LaboratoryNational Dairy Research Institute, Animal Biotechnology Centre, Karnal 132001, Haryana, IndiaDepartment of Biology EducationCollege of Education, Chonnam National University, Gwangju, Republic of Korea
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Mazón MJ, Gómez A, Yilmaz O, Carrillo M, Zanuy S. Administration of Follicle-Stimulating Hormone In Vivo Triggers Testicular Recrudescence of Juvenile European Sea Bass (Dicentrarchus labrax)1. Biol Reprod 2014; 90:6. [DOI: 10.1095/biolreprod.113.110569] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
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Bhattacharya I, Pradhan BS, Sarda K, Gautam M, Basu S, Majumdar SS. A switch in Sertoli cell responsiveness to FSH may be responsible for robust onset of germ cell differentiation during prepubartal testicular maturation in rats. Am J Physiol Endocrinol Metab 2012; 303:E886-98. [PMID: 22850685 DOI: 10.1152/ajpendo.00293.2012] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
FSH and Testosterone (T) regulate spermatogenesis via testicular Sertoli cells (Sc), which bear receptors for these hormones. Despite sufficient circulating levels of FSH and T postnatally, predominant appearance of spermatogonia B and spermatocytes is not discernible until 11 and 18 days of postnatal age, respectively, in rat testes. In an attempt to explore the underlying causes, we cultured Sc from neonatal (5- and 9-day-old) and prepubertal (12- and 19-day-old) rat testes and compared the status of FSH receptor (FSH-R) and androgen receptor (AR) signaling. Protein and mRNA levels of FSH-R and AR remained uniform in cultured Sc from all age groups. Androgen binding ability of AR was similar, and T-induced nuclear localization of AR was discernible in Sc from all age groups. Binding of FSH to FSH-R, subsequent production of cAMP, and mRNA of stem cell factor (SCF) and glial cell line-derived neurotrophic factor (GDNF), known to be essential for the robust differentiation of repopulating spermatogonia, were significantly augmented in prepubertal Sc compared with those in neonatal Sc. However, treatment of neonatal Sc with cholera toxin or forskolin, which stimulate cAMP production bypassing FSH-R, demonstrated a concomitant rise in SCF and GDNF mRNA expression, which was similar to the FSH-mediated rise observed in prepubertal Sc. These observations suggested that, during prepubertal Sc maturation, the ability of FSH-R to respond to FSH is significantly augmented and is associated with the robust differentiation of repopulating spermatogonia, and such a switch in Sc from FSH-resistant to FSH-responsive mode during prepubertal development may underlie the initiation of robust spermatogenesis.
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Affiliation(s)
- Indrashis Bhattacharya
- Cellular Endocrinology Laboratory, National Institute of Immunology, Aruna Asaf Ali Marg, JNU Complex, New Delhi 110067, India
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Majumdar SS, Sarda K, Bhattacharya I, Plant TM. Insufficient androgen and FSH signaling may be responsible for the azoospermia of the infantile primate testes despite exposure to an adult-like hormonal milieu. Hum Reprod 2012; 27:2515-25. [PMID: 22669085 DOI: 10.1093/humrep/des184] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND In humans, as well as in other higher primates, the infantile testis is exposed to an adult-like hormonal milieu, but spermatogenesis is not initiated at this stage of primate development. In the present study, we examined the molecular basis of this intriguing infertile state of the primate testis. METHODS The integrity of androgen receptor (AR) and FSH receptor (FSHR) signaling pathways in primary cultures of Sertoli cells (Scs) harvested from azoospermic infant and spermatogenic pubertal monkey testes were investigated under identical in vitro hormonal conditions. In order to synchronously harvest Scs from early pubertal testis, the activation of testicular puberty was timed experimentally by prematurely initiating gonadotrophin secretion in juvenile animals with an intermittent infusion of gonadotrophin-releasing hormone. RESULTS While qRT-PCR demonstrated that AR and FSHR mRNA expression in Scs from infant and pubertal testes were comparable, androgen-binding and FSH-mediated cAMP production by infant Scs was extremely low. Compromised AR and FSHR signaling in infant Scs was further supported by the finding that testosterone (T) and FSH failed to augment the expression of the T responsive gene, claudin 11, and the FSH responsive genes, inhibin-βB, stem cell factor (SCF) and glial cell line-derived neurotrophic factor (GDNF) in Scs harvested at this stage of development. CONCLUSION These results indicate that compromised AR and FSHR signaling pathways in Scs underlie the inability of the infant primate testis to respond to an endogenous hormonal milieu that later in development, at the time puberty, stimulates the initiation of spermatogenesis. This finding may have relevance to some forms of idiopathic infertility in men.
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Affiliation(s)
- Subeer S Majumdar
- Division of Cellular Endocrinology, National Institute of Immunology, New Delhi 110067, India.
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Gautier A, Sohm F, Joly JS, Le Gac F, Lareyre JJ. The Proximal Promoter Region of the Zebrafish gsdf Gene Is Sufficient to Mimic the Spatio-Temporal Expression Pattern of the Endogenous Gene in Sertoli and Granulosa Cells1. Biol Reprod 2011; 85:1240-51. [DOI: 10.1095/biolreprod.111.091892] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
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Wood MA, Mukherjee P, Toocheck CA, Walker WH. Upstream stimulatory factor induces Nr5a1 and Shbg gene expression during the onset of rat Sertoli cell differentiation. Biol Reprod 2011; 85:965-76. [PMID: 21734262 DOI: 10.1095/biolreprod.111.093013] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
Abstract
Within the testis, each Sertoli cell can support a finite number of developing germ cells. During development, the cessation of Sertoli cell proliferation and the onset of differentiation establish the final number of Sertoli cells and, thus, the total number of sperm that can be produced. The upstream stimulatory factors 1 and 2 (USF1 and USF2, respectively) differentially regulate numerous Sertoli cell genes during differentiation. To identify genes that are activated by USF proteins during differentiation, studies were conducted in Sertoli cells isolated from 5- and 11-day-old rats, representing proliferating and differentiating cells, respectively. Usf1 mRNA and USF1 protein levels were increased between 5 and 11 days after birth. In vitro studies revealed that USF1 and USF2 DNA-binding activity also increased at 11 days for the promoters of four potential target genes, Fshr, Gata4, Nr5a1, and Shbg. Chromatin immunoprecipitation assays confirmed that USF recruitment increased in vivo between 5 and 11 days after birth at the Fshr, Gata4, and Nr5a1 promoters. Expression of Nr5a1 and Shbg, but not of Fshr or Gata4, mRNAs was elevated in 11-day-old Sertoli cells compared with 5-day-old Sertoli cells. Transient transfection of USF1 and USF2 expression vectors up-regulated Nr5a1 and Shbg promoter activity. RNA interference assays demonstrated that USF1 and USF2 contribute to Nr5a1 and Shbg expression in differentiating cells. Together, these data indicate that increased USF levels induce the expression of Nr5a1 and Shbg during the differentiation of Sertoli cells, whereas Fshr and Gata4 expression is not altered by USF proteins during differentiation.
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Affiliation(s)
- Michelle A Wood
- Center for Research in Reproductive Physiology, Department of Obstetrics, Gynecology, and Reproduction Services, Magee Women's Research Institute, University of Pittsburgh, Pittsburgh, Pennsylvania 15213, USA
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George JW, Dille EA, Heckert LL. Current concepts of follicle-stimulating hormone receptor gene regulation. Biol Reprod 2011; 84:7-17. [PMID: 20739665 PMCID: PMC4480823 DOI: 10.1095/biolreprod.110.085043] [Citation(s) in RCA: 80] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2010] [Revised: 05/04/2010] [Accepted: 08/16/2010] [Indexed: 12/25/2022] Open
Abstract
Follicle-stimulating hormone (FSH), a pituitary glycoprotein hormone, is an integral component of the endocrine axis that regulates gonadal function and fertility. To transmit its signal, FSH must bind to its receptor (FSHR) located on Sertoli cells of the testis and granulosa cells of the ovary. Thus, both the magnitude and the target of hormone response are controlled by mechanisms that determine FSHR levels and cell-specific expression, which are supported by transcription of its gene. The present review examines the status of FSHR/Fshr gene regulation, emphasizing the importance of distal sequences in FSHR/Fshr transcription, new insights gained from the influx of genomics data and bioinformatics, and emerging trends that offer direction in deciphering the FSHR/Fshr regulatory landscape.
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Affiliation(s)
- Jitu W. George
- Department of Molecular and Integrative Physiology, University of Kansas Medical Center, Kansas City, Kansas
| | - Elizabeth A. Dille
- Department of Molecular and Integrative Physiology, University of Kansas Medical Center, Kansas City, Kansas
| | - Leslie L. Heckert
- Department of Molecular and Integrative Physiology, University of Kansas Medical Center, Kansas City, Kansas
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van Deursen D, van Leeuwen M, Akdogan D, Adams H, Jansen H, Verhoeven AJ. Activation of hepatic lipase expression by oleic acid: possible involvement of USF1. Nutrients 2009; 1:133-47. [PMID: 22253973 PMCID: PMC3257599 DOI: 10.3390/nu1020133] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2009] [Accepted: 10/28/2009] [Indexed: 01/22/2023] Open
Abstract
Polyunsaturated fatty acids affect gene expression mainly through peroxisome proliferator-activated receptors (PPARs) and sterol regulatory element binding proteins (SREBPs), but how monounsaturated fatty acids affect gene expression is poorly understood. In HepG2 cells, oleate supplementation has been shown to increase secretion of hepatic lipase (HL). We hypothesized that oleate affects HL gene expression at the transcriptional level. To test this, we studied the effect of oleate on HL promoter activity using HepG2 cells and the proximal HL promoter region (700 bp). Oleate increased HL expression and promoter activity 1.3-2.1 fold and reduced SREBP activity by 50%. Downregulation of SREBP activity by incubation with cholesterol+25-hydroxycholesterol had no effect on HL promoter activity. Overexpression of SREBP2, but not SREBP1, reduced HL promoter activity, which was effected mainly through the USF1 binding site at -307/-312. Oleate increased the nuclear abundance of USF1 protein 2.7 ± 0.6 fold, while USF1 levels were reduced by SREBP2 overexpression. We conclude that oleate increases HL gene expression via USF1. USF1 may be an additional fatty acid sensor in liver cells.
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Affiliation(s)
- Diederik van Deursen
- Dept. Biochemistry, Cardiovascular Research School (COEUR), Erasmus MC, PO Box 2040, 3000 CA Rotterdam, The Netherlands; (D.v.D); (M.v.L.)
| | - Marije van Leeuwen
- Dept. Biochemistry, Cardiovascular Research School (COEUR), Erasmus MC, PO Box 2040, 3000 CA Rotterdam, The Netherlands; (D.v.D); (M.v.L.)
| | - Deniz Akdogan
- Dept. Biochemistry, Cardiovascular Research School (COEUR), Erasmus MC, PO Box 2040, 3000 CA Rotterdam, The Netherlands; (D.v.D); (M.v.L.)
| | - Hadie Adams
- Dept. Biochemistry, Cardiovascular Research School (COEUR), Erasmus MC, PO Box 2040, 3000 CA Rotterdam, The Netherlands; (D.v.D); (M.v.L.)
| | - Hans Jansen
- Dept. Biochemistry, Cardiovascular Research School (COEUR), Erasmus MC, PO Box 2040, 3000 CA Rotterdam, The Netherlands; (D.v.D); (M.v.L.)
- Dept. Clinical Chemistry, Cardiovascular Research School (COEUR), Erasmus MC, PO Box 2040, 3000 CA Rotterdam, The Netherlands; (H.J.)
| | - Adrie J.M. Verhoeven
- Dept. Biochemistry, Cardiovascular Research School (COEUR), Erasmus MC, PO Box 2040, 3000 CA Rotterdam, The Netherlands; (D.v.D); (M.v.L.)
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