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Luo YW, Zhu XL, Li MY, Zhou JH, Yang ZM, Tong T, Chen BH, Qin SL, Liu BL, Hu W. Anti-apoptotic effect of adrenomedullin gene delivery on Leydig cells by suppressing TGF-β1 via the Hippo signaling pathway. Reprod Toxicol 2023; 119:108418. [PMID: 37268150 DOI: 10.1016/j.reprotox.2023.108418] [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: 11/11/2022] [Revised: 05/06/2023] [Accepted: 05/30/2023] [Indexed: 06/04/2023]
Abstract
This study aims to establish whether adrenomedullin (ADM) is capable to restore the steroidogenic functions of Leydig cells by suppressing transforming growth factor-β1 (TGF-β1) through Hippo signaling. Primary Leydig cells were treated with lipopolysaccharide (LPS), an adeno-associated virus vector that expressed ADM (Ad-ADM) or sh-RNA of TGF-β1 (Ad-sh-TGF-β1). The cell viability and medium concentrations of testosterone were detected. Gene expression and protein levels were determined for steroidogenic enzymes, TGF-β1, RhoA, YAP, TAZ and TEAD1. The role of Ad-ADM in the regulation of TGF-β1 promoter was confirmed by ChIP and Co-IP. Similar to Ad-sh-TGF-β1, Ad-ADM mitigated the decline in the number of Leydig cells and plasma concentrations of testosterone by restoring the gene and protein levels of SF-1, LRH1, NUR77, StAR, P450scc, 3β-HSD, CYP17 and 17β-HSD. Similar to Ad-sh-TGF-β1, Ad-ADM not only inhibited the LPS-induced cytotoxicity and cell apoptosis but also restored the gene and protein levels of SF-1, LRH1, NUR77, StAR, P450scc, 3β-HSD, CYP17 and 17β-HSD, along with the medium concentrations of testosterone in LPS-induced Leydig cells. Like Ad-sh-TGF-β1, Ad-ADM improved LPS-induced TGF-β1 expression. In addition, Ad-ADM suppressed RhoA activation, enhanced the phosphorylation of YAP and TAZ, reduced the expression of TEAD1 which interacted with HDAC5 and then bound to TGF-β1 gene promoter in LPS-exposed Leydig cells. It is thus suspected that ADM can exert anti-apoptotic effect to restore the steroidogenic functions of Leydig cells by suppressing TGF-β1 through Hippo signaling.
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Affiliation(s)
- You-Wen Luo
- Department of Andrology, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, China
| | - Xia-Lian Zhu
- Department of Nuclear Medicine, The Affiliated Nanhua Hospital, Hengyang Medical School, University of South China, Hengyang, China
| | - Ming-Yong Li
- Department of Urology, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, China
| | - Jian-Hua Zhou
- Department of Andrology, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, China
| | - Zhi-Min Yang
- Department of Andrology, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, China
| | - Tao Tong
- Department of Andrology, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, China
| | - Bing-Hai Chen
- Department of Urology, Affiliated Hospital of Jiangsu University, Zhenjiang, China.
| | - Song-Lin Qin
- Department of Andrology, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, China
| | - Bo-Long Liu
- Department of Andrology, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, China
| | - Wei Hu
- Department of Andrology, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, China.
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Evolution and conservation of Characidium sex chromosomes. Heredity (Edinb) 2017; 119:237-244. [PMID: 28745717 DOI: 10.1038/hdy.2017.43] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2017] [Revised: 06/23/2017] [Accepted: 06/26/2017] [Indexed: 01/02/2023] Open
Abstract
Fish species exhibit substantial variation in the degree of genetic differentiation between sex chromosome pairs, and therefore offer the opportunity to study the full range of sex chromosome evolution. We used restriction-site associated DNA sequencing (RAD-seq) to study the sex chromosomes of Characidium gomesi, a species with conspicuous heteromorphic ZW/ZZ sex chromosomes. We screened 9863 single-nucleotide polymorphisms (SNPs), corresponding to ~1 marker/100 kb distributed across the genome for sex-linked variation. With this data set, we identified 26 female-specific RAD loci, putatively located on the W chromosome, as well as 148 sex-associated SNPs showing significant differentiation (average FST=0.144) between males and females, and therefore in regions of more recent divergence between the Z and W chromosomes. In addition, we detected 25 RAD loci showing extreme heterozygote deficiency in females but which were in Hardy-Weinberg equilibrium in males, consistent with degeneration of the W chromosome and therefore female hemizygosity. We validated seven female-specific and two sex-associated markers in a larger sample of C. gomesi, of which three localised to the W chromosome, thereby providing useful markers for sexing wild samples. Validated markers were evaluated in other populations and species of the genus Characidium, this exploration suggesting a rapid turnover of W-specific repetitive elements. Together, our analyses point to a complex origin for the sex chromosome of C. gomesi and highlight the utility of RAD-seq for studying the composition and evolution of sex chromosomes systems in wild populations.
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Yang Q, Ma B, Qiao H, Ma H, Dong Y, Cao L, Ma J, Li Z. TGFB1 represses the expression of SF1 and LRH1 to inhibit E 2 production in rat LCs. Reproduction 2017; 153:621-629. [PMID: 28250236 DOI: 10.1530/rep-16-0044] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2016] [Revised: 02/10/2017] [Accepted: 02/28/2017] [Indexed: 11/08/2022]
Abstract
Leydig cells (LCs) in the adult testis have been identified as the major sites of oestrogen production, which is crucial for mammalian germ cell differentiation. Our previous work showed that transforming growth factor beta 1 (TGFB1) inhibits estradiol (E2) secretion via down-regulating Cyp19 gene expression in mature rat LCs. However, the mechanism remains unclear. In the present study, the effects of TGFB1 on the expression levels of steroidogenic factor 1 (SF1), liver receptor homolog 1 (LRH1), cAMP response element-binding protein (CREB) and cAMP responsive element modulator (CREM) were evaluated both in primary cultured LCs and in rat testis. The involvement of TGFB1 signalling in the regulation of SF1 and LRH1 expression was then validated by applying the inhibitor of the TGFB type 1 receptor (TGFBR1) SB431542. Moreover, the expression of CYP19 in testicular LCs was investigated and the production of E2 in testicular interstitial fluid (TIF) was measured. The results showed that TGFB1 especially down-regulated the expression levels of SF1 and LRH1 both in primary cultured LCs and in rat testis. The down-regulations of TGFB1 in the production of E2 in TIF and the expression of CYP19 in testicular LCs were also observed in vivo These inhibitory effects could be reversed by TGFBR1 inhibitor SB431542. Our findings suggest that TGFB1 may act through the canonical signalling pathway involving ALK5 to restrain SF1 and LRH1 accumulation and eventually attenuate Cyp19 transcription and oestrogen production in LCs.
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Affiliation(s)
- Qianqian Yang
- Department of Histology and EmbryologyThe Fourth Military Medical University, Xi'an, Shaanxi, People's Republic of China.,Department of Traditional Chinese MedicineXijing Hospital, The Fourth Military Medical University, Xi'an, Shaanxi, People's Republic of China
| | - Binfang Ma
- Department of Histology and EmbryologyThe Fourth Military Medical University, Xi'an, Shaanxi, People's Republic of China
| | - Huilian Qiao
- Department of Histology and EmbryologyThe Fourth Military Medical University, Xi'an, Shaanxi, People's Republic of China
| | - He Ma
- Department of Histology and EmbryologyThe Fourth Military Medical University, Xi'an, Shaanxi, People's Republic of China
| | - Yuhang Dong
- Department of Histology and EmbryologyThe Fourth Military Medical University, Xi'an, Shaanxi, People's Republic of China
| | - Liang Cao
- Department of Traditional Chinese MedicineXijing Hospital, The Fourth Military Medical University, Xi'an, Shaanxi, People's Republic of China
| | - Jing Ma
- Department of Traditional Chinese MedicineXijing Hospital, The Fourth Military Medical University, Xi'an, Shaanxi, People's Republic of China
| | - Zhen Li
- Department of Histology and EmbryologyThe Fourth Military Medical University, Xi'an, Shaanxi, People's Republic of China
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Lin C, Shin DG, Park SG, Chu SB, Gwon LW, Lee JG, Yon JM, Baek IJ, Nam SY. Curcumin dose-dependently improves spermatogenic disorders induced by scrotal heat stress in mice. Food Funct 2015; 6:3770-7. [DOI: 10.1039/c5fo00726g] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Curcumin significantly improves testicular injuries (B & C) induced by scrotal heat stress in a dose-dependent manner (20, 40, and 80 mg kg−1; D–F, respectively).
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Affiliation(s)
- Chunmei Lin
- College of Veterinary Medicine and Research Institute of Veterinary Medicine
- Chungbuk National University
- Cheongju 28644
- South Korea
| | - Dong-Geun Shin
- College of Veterinary Medicine and Research Institute of Veterinary Medicine
- Chungbuk National University
- Cheongju 28644
- South Korea
| | - Seul Gi Park
- College of Veterinary Medicine and Research Institute of Veterinary Medicine
- Chungbuk National University
- Cheongju 28644
- South Korea
| | - Sl Bi Chu
- College of Veterinary Medicine and Research Institute of Veterinary Medicine
- Chungbuk National University
- Cheongju 28644
- South Korea
| | - Lee Wha Gwon
- College of Veterinary Medicine and Research Institute of Veterinary Medicine
- Chungbuk National University
- Cheongju 28644
- South Korea
| | - Jong-Geol Lee
- College of Veterinary Medicine and Research Institute of Veterinary Medicine
- Chungbuk National University
- Cheongju 28644
- South Korea
- Asan Institute for Life Sciences
| | - Jung-Min Yon
- College of Veterinary Medicine and Research Institute of Veterinary Medicine
- Chungbuk National University
- Cheongju 28644
- South Korea
| | - In-Jeoung Baek
- Asan Institute for Life Sciences
- University of Ulsan College of Medicine
- Seoul 05505
- South Korea
| | - Sang-Yoon Nam
- College of Veterinary Medicine and Research Institute of Veterinary Medicine
- Chungbuk National University
- Cheongju 28644
- South Korea
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Transforming growth factor-β1 signaling represses testicular steroidogenesis through cross-talk with orphan nuclear receptor Nur77. PLoS One 2014; 9:e104812. [PMID: 25140527 PMCID: PMC4139307 DOI: 10.1371/journal.pone.0104812] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2014] [Accepted: 07/15/2014] [Indexed: 11/25/2022] Open
Abstract
Transforming growth factor- β1 (TGF-β1) has been reported to inhibit luteinizing hormone (LH) mediated-steroidogenesis in testicular Leydig cells. However, the mechanism by which TGF-β1 controls the steroidogenesis in Leydig cells is not well understood. Here, we investigated the possibility that TGF-β1 represses steroidogenesis through cross-talk with the orphan nuclear receptor Nur77. Nur77, which is induced by LH/cAMP signaling, is one of major transcription factors that regulate the expression of steroidogenic genes in Leydig cells. TGF-β1 signaling inhibited cAMP-induced testosterone production and the expression of steroidogenic genes such as P450c17, StAR and 3β-HSD in mouse Leydig cells. Further, TGF-β1/ALK5 signaling repressed cAMP-induced and Nur77-activated promoter activity of steroidogenic genes. In addition, TGF-β1/ALK5-activated Smad3 repressed Nur77 transactivation of steroidogenic gene promoters by interfering with Nur77 binding to DNA. In primary Leydig cells isolated from Tgfbr2flox/flox Cyp17iCre mice, TGF-β1-mediated repression of cAMP-induced steroidogenic gene expression was significantly less than that in primary Leydig cells from Tgfbr2flox/flox mice. Taken together, these results suggest that TGF-β1/ALK5/Smad3 signaling represses the expression of steroidogenic genes via the suppression of Nur77 transactivation in testicular Leydig cells. These findings may provide a molecular mechanism involved in the TGF-β1-mediated repression of testicular steroidogenesis.
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Tsai-Morris CH, Sato H, Gutti R, Dufau ML. Role of gonadotropin regulated testicular RNA helicase (GRTH/Ddx25) on polysomal associated mRNAs in mouse testis. PLoS One 2012; 7:e32470. [PMID: 22479328 PMCID: PMC3316541 DOI: 10.1371/journal.pone.0032470] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2011] [Accepted: 01/31/2012] [Indexed: 01/06/2023] Open
Abstract
Gonadotropin Regulated Testicular RNA Helicase (GRTH/Ddx25) is a testis-specific multifunctional RNA helicase and an essential post-transcriptional regulator of spermatogenesis. GRTH transports relevant mRNAs from nucleus to cytoplasmic sites of meiotic and haploid germ cells and associates with actively translating polyribosomes. It is also a negative regulator of steroidogenesis in Leydig cells. To obtain a genome-wide perspective of GRTH regulated genes, in particularly those associated with polyribosomes, microarray differential gene expression analysis was performed using polysome-bound RNA isolated from testes of wild type (WT) and GRTH KO mice. 792 genes among the entire mouse genome were found to be polysomal GRTH-linked in WT. Among these 186 were down-regulated and 7 up-regulated genes in GRTH null mice. A similar analysis was performed using total RNA extracted from purified germ cell populations to address GRTH action in individual target cells. The down-regulation of known genes concerned with spermatogenesis at polysomal sites in GRTH KO and their association with GRTH in WT coupled with early findings of minor or unchanged total mRNAs and abolition of their protein expression in KO underscore the relevance of GRTH in translation. Ingenuity pathway analysis predicted association of GRTH bound polysome genes with the ubiquitin-proteasome-heat shock protein signaling network pathway and NFκB/TP53/TGFB1 signaling networks were derived from the differentially expressed gene analysis. This study has revealed known and unexplored factors in the genome and regulatory pathways underlying GRTH action in male reproduction.
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Affiliation(s)
- Chon-Hwa Tsai-Morris
- Section on Molecular Endocrinology, Program in Developmental Endocrinology and Genetics, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland, United States of America.
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