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Li L, Li X, Chen Y, Yang Y, Wang N, Xu W. Identification and Functional Analysis of Cynoglossus semilaevis Z-Linked E3 Ubiquitin Ligase rnf34. Animals (Basel) 2024; 14:311. [PMID: 38275772 PMCID: PMC10812492 DOI: 10.3390/ani14020311] [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: 12/13/2023] [Revised: 01/12/2024] [Accepted: 01/17/2024] [Indexed: 01/27/2024] Open
Abstract
The high proportion of males in C. semilaevis hinders their industrial development. The genetic ZW individual can become a pseudomale by sex reversal. And the pseudomale can produce Z-sperm (with epigenetic information to cause sex reversal) while W-sperm is absent, which leads to an even higher male proportion in offspring. Recently, with the development of transcriptomic technologies, research on spermatogenesis in C. semilaevis has been focused on the ubiquitination pathway. In this study, we analyzed the function of the ubiquitin ligase rnf34 gene on the Z chromosome. A qPCR experiment showed that its expression level in the gonad was the highest among different tissues. In the ovary, the expression gradually increased with development from 40 days post-hatching (dph) to 1.5 years post-hatching (yph). In the testis, rnf34 showed increased expression from 40 dph to 6 months post-hatching (mpf) and stabilized up until 1.5 ypf. In situ hybridization showed that the mRNA of rnf34 was mainly distributed in the germ cells of the testis and the ovary. In vivo siRNA-mediated knockdown of the rnf34 gene in male fish affected the expression of a series of genes related to sex differentiation and spermatogenesis. These results provide genetic data on the molecular mechanisms of gonadal development and spermatogenesis in C. semilaevis.
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Affiliation(s)
- Lu Li
- School of Fishery, Zhejiang Ocean University, Zhoushan 316022, China
- Function Laboratory for Marine Science and Food Production Process, Laoshan Laboratory, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences (CAFS), Qingdao 266071, China
| | - Xihong Li
- Function Laboratory for Marine Science and Food Production Process, Laoshan Laboratory, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences (CAFS), Qingdao 266071, China
| | - Yadong Chen
- Function Laboratory for Marine Science and Food Production Process, Laoshan Laboratory, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences (CAFS), Qingdao 266071, China
| | - Yingming Yang
- Function Laboratory for Marine Science and Food Production Process, Laoshan Laboratory, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences (CAFS), Qingdao 266071, China
| | - Na Wang
- Function Laboratory for Marine Science and Food Production Process, Laoshan Laboratory, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences (CAFS), Qingdao 266071, China
| | - Wenteng Xu
- Function Laboratory for Marine Science and Food Production Process, Laoshan Laboratory, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences (CAFS), Qingdao 266071, China
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Nadeem L, Balendran R, Dorogin A, Mesiano S, Shynlova O, Lye SJ. Pro-inflammatory signals induce 20α-HSD expression in myometrial cells: A key mechanism for local progesterone withdrawal. J Cell Mol Med 2021; 25:6773-6785. [PMID: 34114342 PMCID: PMC8278114 DOI: 10.1111/jcmm.16681] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Revised: 05/11/2021] [Accepted: 05/13/2021] [Indexed: 01/03/2023] Open
Abstract
Metabolism of progesterone (P4) by the enzyme 20α hydroxysteroid dehydrogenase (20α‐HSD) in myometrial cells is postulated to be a mechanism for P4 withdrawal, which occurs concomitant to uterine inflammation (physiologic or infection‐induced) and associated activation of transcription factors: NF‐кB and AP‐1, common to term and preterm labour. We found that 20α‐HSD protein is significantly increased in human myometrium during term labour, and in mouse uterus during term and preterm labour. Treatment of human myometrial cells with the pro‐inflammatory mediators, lipopolysaccharide (LPS, mimicking infection) and 12‐O‐tetradecanoylphorbol‐13‐acetate (TPA, mimicking inflammation), induced 20α‐HSD gene expression and increased 20α‐HSD protein abundance. LPS treatment decreased P4 release into the culture medium and resulted in up‐regulation of GJA1 in the hTERT‐HM cells. The NF‐кB /AP‐1 transcription factors mediated effects of LPS and TPA on 20α‐HSD gene transcription. Both pro‐inflammatory stimuli induced 20α‐HSD promoter activity in LPS/TPA‐treated cells which was significantly attenuated by inhibition of NF‐кB (JSH: 20 µM) or AP‐1 signalling (T5224: 10 µM). Deletion of NF‐кB consensus sites abrogated LPS‐mediated promoter induction, while removal of AP‐1 sites reversed the TPA‐mediated induction of 20α‐HSD promoter. We conclude that inflammatory stimuli (physiologic or pathologic) that activate NF‐кB or AP‐1 induce 20α‐HSD transcription and subsequent local P4 withdrawal resulting in up‐regulation of GJA1 and activation of myometrium that precedes labour.
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Affiliation(s)
- Lubna Nadeem
- Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, ON, Canada
| | - Rathesh Balendran
- Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, ON, Canada
| | - Anna Dorogin
- Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, ON, Canada
| | - Sam Mesiano
- Department of Reproductive Biology, Case Western Reserve University, Cleveland, OH, USA
| | - Oksana Shynlova
- Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, ON, Canada.,Department of Physiology, University of Toronto, Toronto, ON, Canada.,Department of Obstetrics & Gynecology, University of Toronto, Toronto, ON, Canada
| | - Stephen J Lye
- Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, ON, Canada.,Department of Physiology, University of Toronto, Toronto, ON, Canada.,Department of Obstetrics & Gynecology, University of Toronto, Toronto, ON, Canada
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Yoo MH, Park CW, Byambaragchaa M, Kang MH, Min KS. Data on the localization of EGFP and 20α-hydroxysteroid dehydrogenase (20α-HSD) in the placenta and testes of transgenic mice. Data Brief 2018; 19:632-637. [PMID: 29900362 PMCID: PMC5997899 DOI: 10.1016/j.dib.2018.05.069] [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] [Received: 02/21/2018] [Revised: 04/18/2018] [Accepted: 05/15/2018] [Indexed: 11/16/2022] Open
Abstract
In order to investigate the function of monkey 20α-hydroxysteroid dehydrogenase (20α-HSD), transgenic mice (tg) were produced, expressing enhanced green fluorescent protein (EGFP) under the control of the monkey 20α-HSD promoter. The expression levels and localization of EGFP and 20α-HSD were analyzed in immature testis and in placenta. In support of our recent publication, "Characterization of transgenic mice expressing EGFP under control of monkey 20α-hydroxysteroid dehydrogenase promoter" (Park et al., 2018) [1], it was important to characterize the function of EGFP and 20α-HSD in the ovarian luteal cells of tg mice. Here, the expression of EGFP and 20α-HSD in immature testis and placenta are presented. The expression level of EGFP and 20α-HSD were detected in the testes 1 week after birth, and increased dramatically at 8 weeks. Both of proteins strongly detected in the placenta on days 14, 16, and 18 of pregnancy. Immunohistochemical analysis revealed that EGFP was detected in the seminiferous epithelium and 20α-HSD was specifically localized in the seminiferous tubule at 8 weeks.
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Affiliation(s)
- Mi-Hyang Yoo
- Animal Biotechnology, Graduate School of Future Convergence Technology, Institute of Genetic Engineering, Dept. of Animal Life Science, Hankyong National University, Anseong 17579, Republic of Korea
| | - Chae-Won Park
- Animal Biotechnology, Graduate School of Future Convergence Technology, Institute of Genetic Engineering, Dept. of Animal Life Science, Hankyong National University, Anseong 17579, Republic of Korea
| | - Munkhzaya Byambaragchaa
- Animal Biotechnology, Graduate School of Future Convergence Technology, Institute of Genetic Engineering, Dept. of Animal Life Science, Hankyong National University, Anseong 17579, Republic of Korea
| | - Myung-Hwa Kang
- Department of Food Science & Nutrition, Hoseo University, Asan 31499, Republic of Korea
| | - Kwan-Sik Min
- Animal Biotechnology, Graduate School of Future Convergence Technology, Institute of Genetic Engineering, Dept. of Animal Life Science, Hankyong National University, Anseong 17579, Republic of Korea
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Characterization of transgenic mice expressing EGFP under the control of the monkey 20α-hydroxysteroid dehydrogenase promoter. SCIENCE CHINA-LIFE SCIENCES 2018; 61:966-974. [PMID: 29804163 DOI: 10.1007/s11427-017-9111-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2017] [Accepted: 12/08/2017] [Indexed: 10/16/2022]
Abstract
To directly assess the molecular function of the monkey 20α-hydroxysteroid dehydrogenase (20α-HSD) promoter, we generated transgenic mice (tg) expressing enhanced green fluorescent protein (EGFP) under control of this promoter. We demonstrated that prostaglandin F2α induced 20α-HSD promoter activity in CHO cells in a dose-dependent manner. Furthermore, forskolin treatment markedly reduced 20α-HSD promoter activity, and prolactin exhibited weak inhibitory activity. The transgenic mouse obtained one positive founder male. The transgene was propagated in 10 successive generations without any notable defects to the progeny. EGFP and 20α-HSD in the tg mice were colocalized in the luteal cells of the ovary during late pregnancy. Strong EGFP and 20α-HSD protein signals were also detected in the adult testis. Immunohistochemical analysis revealed high EGFP levels in the seminiferous epithelium, whereas 20α-HSD was expressed in the seminiferous tubules. Our data suggest that the ovaries in monkey and mouse exhibit similar expression patterns of 20α-HSD during pregnancy. However, the expression pattern of EGFP in tg mice testis slightly differed from that of the endogenous 20α-HSD. Further investigation is required to elucidate the functional mechanisms underlying regulation of the monkey 20α-HSD promoter in the tg mice.
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Nam GH, Gim JA, Lee HE, Kim WJ, Jung H, Kim W, Kim HS. Expression and promoter activity of endogenous retroviruses in the Olive flounder (Paralichthys olivaceus). Genes Genomics 2016. [DOI: 10.1007/s13258-016-0404-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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