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Peng Z, Man Q, Meng L, Wang S, Cai H, Zhang C, Li X, Wang H, Zhu G. A PITX2-HTR1B pathway regulates the asymmetric development of female gonads in chickens. PNAS NEXUS 2023; 2:pgad202. [PMID: 37388922 PMCID: PMC10304771 DOI: 10.1093/pnasnexus/pgad202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 02/07/2023] [Accepted: 06/08/2023] [Indexed: 07/01/2023]
Abstract
All female vertebrates develop a pair of ovaries except for birds, in which only the left gonad develops into an ovary, whereas the right gonad regresses. Previous studies found that the transcription factor Paired-Like Homeodomain 2 (PITX2), a key mediator for left/right morphogenesis in vertebrates, was also implicated in asymmetric gonadal development in chickens. In this study, we systematically screened and validated the signaling pathways that could be targeted by Pitx2 to control unilateral gonad development. Integrated chromatin immunoprecipitation sequencing (ChIP-seq) and RNA sequencing (RNA-seq) analyses indicated that Pitx2 directly binds to the promoters of genes encoding neurotransmitter receptors and leads to left-biased expression of both serotonin and dopamine receptors. Forcibly activating serotonin receptor 5-Hydroxytryptamine Receptor 1B (HTR1B) signaling could induce ovarian gene expression and cell proliferation to partially rescue the degeneration of the right gonad. In contrast, inhibiting serotonin signaling could block the development of the left gonad. These findings reveal a PITX2-HTR1B genetic pathway that guides the left-specific ovarian growth in chickens. We also provided new evidence showing neurotransmitters stimulate the growth of nonneuronal cells during the early development of reproductive organs well before innervation.
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Affiliation(s)
| | | | | | - Sheng Wang
- College of Animal Science and Technology, Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, Taian 271018, China
| | - Hao Cai
- College of Animal Science and Technology, Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, Taian 271018, China
| | - Chuansheng Zhang
- College of Animal Science and Technology, Hebei Normal University of Science and Technology, Qinhuangdao 066600, China
| | - Xianyao Li
- College of Animal Science and Technology, Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, Taian 271018, China
| | - Heng Wang
- To whom correspondence should be addressed: (G.Z.); (H.W.)
| | - Guiyu Zhu
- To whom correspondence should be addressed: (G.Z.); (H.W.)
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2
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Nile tilapia (Oreochromis niloticus) Nanog co-expression with Pou5f3, transcriptional regulation and biological activity in embyonic development and embryonic cells. Comp Biochem Physiol B Biochem Mol Biol 2022; 264:110812. [DOI: 10.1016/j.cbpb.2022.110812] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Accepted: 11/11/2022] [Indexed: 11/16/2022]
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Potential Involvement of ewsr1-w Gene in Ovarian Development of Chinese Tongue Sole, Cynoglossus semilaevis. Animals (Basel) 2022; 12:ani12192503. [PMID: 36230245 PMCID: PMC9559465 DOI: 10.3390/ani12192503] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 09/09/2022] [Accepted: 09/13/2022] [Indexed: 11/29/2022] Open
Abstract
Simple Summary Sexual dimorphism is a phenomenon commonly existing in animals. Chinese tongue sole Cynoglossus semilaevis is an economical marine fish with obvious female-biased size dimorphism. So, it is important to explore the molecular mechanism beyond gonadal development for sex control in aquaculture industry. RNA-binding protein Ewing Sarcoma protein-like (ewsr1) gene is important for mouse gonadal development and reproduction, however there are limited studies on this gene in teleost. In this study, two ewsr1 genes were cloned and characterized from C. semilaevis. The ewsr1-w gene, located in W chromosomes, showed female-biased expression during C. semilaevis gonadal development. In addition, knock-down effect and transcriptional regulation of Cs-ewsr1-w further suggested its essential role in ovarian development. This study broadened our understanding on ewsr1 function in teleost, and provided genetic resources for the further development of sex control breeding techniques in C. semilaevis aquaculture. Abstract Ewsr1 encodes a protein that acts as a multifunctional molecule in a variety of cellular processes. The full-length of Cs-ewsr1-w and Cs-ewsr1-z were cloned in Chinese tongue sole (Cynoglossus semilaevis). The open reading frame (ORF) of Cs-ewsr1-w was 1,767 bp that encoded 589 amino acids, while Cs-ewsr1-z was 1,794 bp that encoded 598 amino acids. Real-time PCR assays showed that Cs-ewsr1-w exhibited significant female-biased expression and could be hardly detected in male. It has the most abundant expression in ovaries among eight healthy tissues. Its expression in ovary increased gradually from 90 d to 3 y with C. semilaevis ovarian development and reached the peak at 3 y. After Cs-ewsr1-w knockdown with siRNA interference, several genes related to gonadal development including foxl2, sox9b and pou5f1 were down-regulated in ovarian cell line, suggesting the possible participation of Cs-ewsr1-w in C. semilaevis ovarian development. The dual-luciferase reporter assay revealed that the -733/-154 bp Cs-ewsr1-w promoter fragment exhibited strong transcription activity human embryonic kidney (HEK) 293T cell line. The mutation of a MAF BZIP Transcription Factor K (Mafk) binding site located in this fragment suggested that transcription factor Mafk might play an important role in Cs-ewsr1-w basal transcription. Our results will provide clues on the gene expression level, transcriptional regulation and knock-down effect of ewsr1 gene during ovarian development in teleost.
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Pou5f1 and Nanog Are Reliable Germ Cell-Specific Genes in Gonad of a Protogynous Hermaphroditic Fish, Orange-Spotted Grouper (Epinephelus coioides). Genes (Basel) 2021; 13:genes13010079. [PMID: 35052423 PMCID: PMC8774525 DOI: 10.3390/genes13010079] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Revised: 12/12/2021] [Accepted: 12/25/2021] [Indexed: 01/06/2023] Open
Abstract
Pluripotency markers Pou5f1 and Nanog are core transcription factors regulating early embryonic development and maintaining the pluripotency and self-renewal of stem cells. Pou5f1 and Nanog also play important roles in germ cell development and gametogenesis. In this study, Pou5f1 (EcPou5f1) and Nanog (EcNanog) were cloned from orange-spotted grouper, Epinephelus coioides. The full-length cDNAs of EcPou5f1 and EcNanog were 2790 and 1820 bp, and encoded 475 and 432 amino acids, respectively. EcPou5f1 exhibited a specific expression in gonads, whereas EcNanog was expressed highly in gonads and weakly in some somatic tissues. In situ hybridization analyses showed that the mRNA signals of EcNanog and EcPou5f1 were exclusively restricted to germ cells in gonads. Likewise, immunohistofluorescence staining revealed that EcNanog protein was limited to germ cells. Moreover, both EcPou5f1 and EcNanog mRNAs were discovered to be co-localized with Vasa mRNA, a well-known germ cell maker, in male and female germ cells. These results implied that EcPou5f1 and EcNanog could be also regarded as reliable germ cell marker genes. Therefore, the findings of this study would pave the way for elucidating the mechanism whereby EcPou5f1 and EcNanog regulate germ cell development and gametogenesis in grouper fish, and even in other protogynous hermaphroditic species.
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5
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Huang Q, Yang Z, Wang J, Luo Y, Zhao C, Li M, Xiao H, Tao W, Wang D, Wei J. Establishment of a stem Leydig cell line capable of 11-ketotestosterone production. Reprod Fertil Dev 2021; 32:1271-1281. [PMID: 33153523 DOI: 10.1071/rd20171] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Accepted: 10/02/2020] [Indexed: 11/23/2022] Open
Abstract
The deficiency or insufficiency of androgen can trigger a range of reproductive diseases as well as other symptoms. Stem Leydig cells (SLCs) are critical for the formation and maintenance of a functional androgen-producing cell (Leydig cell, LC) population throughout adult male life. However, to date, our knowledge about SLCs is poor. Here we report the derivation and characterisation of a clonal stem LC line (designated as TSL) capable of 11- ketotestosterone (11-KT) production from a 3-month-old Nile tilapia (Oreochromis niloticus) testis. The cells retained stable proliferation after 77 generations with normal karyotype and growth factor dependency. They expressed platelet-derived growth factor receptor-α (pdgfrα), nestin and chicken ovalbumin upstream promoter transcription factor II (coup-tfIIa), which are characteristic of SLCs. Upon induction in defined medium, TSLs could undergo differentiation into steroidogenically active LCs and produce 11-KT. When implanted into recipient Nile tilapia testes from which endogenous LCs had been eliminated by ethane dimethanesulphonate (EDS) treatment, the PKH26-labelled TSLs could colonise the interstitium, subsequently express steroidogenic genes and restore 11-KT production. Taken together, our data suggest that TSLs possess the ability of continuous proliferation and potential of differentiation into functional LCs invitro and invivo. To the best of our knowledge TSL might represent the first stem LC line capable of 11-KT production to date. Our study may offer new opportunities for investigating the self-renewal of SLCs and steroidogenesis invitro, and provide an invaluable invitro model for investigating endocrine disruptors.
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Affiliation(s)
- Qin Huang
- Key Laboratory of Freshwater Fish Reproduction and Development, Ministry of Education; Laboratory of Aquatic Science of Chongqing, School of Life Sciences, Southwest University, 400715 Chongqing, China
| | - Zhuo Yang
- Key Laboratory of Freshwater Fish Reproduction and Development, Ministry of Education; Laboratory of Aquatic Science of Chongqing, School of Life Sciences, Southwest University, 400715 Chongqing, China
| | - Jie Wang
- Key Laboratory of Freshwater Fish Reproduction and Development, Ministry of Education; Laboratory of Aquatic Science of Chongqing, School of Life Sciences, Southwest University, 400715 Chongqing, China
| | - Yubing Luo
- Key Laboratory of Freshwater Fish Reproduction and Development, Ministry of Education; Laboratory of Aquatic Science of Chongqing, School of Life Sciences, Southwest University, 400715 Chongqing, China
| | - Changle Zhao
- Key Laboratory of Freshwater Fish Reproduction and Development, Ministry of Education; Laboratory of Aquatic Science of Chongqing, School of Life Sciences, Southwest University, 400715 Chongqing, China
| | - Minghui Li
- Key Laboratory of Freshwater Fish Reproduction and Development, Ministry of Education; Laboratory of Aquatic Science of Chongqing, School of Life Sciences, Southwest University, 400715 Chongqing, China
| | - Hesheng Xiao
- Key Laboratory of Freshwater Fish Reproduction and Development, Ministry of Education; Laboratory of Aquatic Science of Chongqing, School of Life Sciences, Southwest University, 400715 Chongqing, China
| | - Wenjing Tao
- Key Laboratory of Freshwater Fish Reproduction and Development, Ministry of Education; Laboratory of Aquatic Science of Chongqing, School of Life Sciences, Southwest University, 400715 Chongqing, China
| | - Deshou Wang
- Key Laboratory of Freshwater Fish Reproduction and Development, Ministry of Education; Laboratory of Aquatic Science of Chongqing, School of Life Sciences, Southwest University, 400715 Chongqing, China; and Corresponding authors. Emails: ;
| | - Jing Wei
- Key Laboratory of Freshwater Fish Reproduction and Development, Ministry of Education; Laboratory of Aquatic Science of Chongqing, School of Life Sciences, Southwest University, 400715 Chongqing, China; and Corresponding authors. Emails: ;
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6
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Cai X, Yang S, Peng Y, Huang Y, Chen H, Wu X. Screening of key genes during early embryonic development of Nile tilapia (Oreochromis niloticus). GENE REPORTS 2021. [DOI: 10.1016/j.genrep.2021.101262] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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7
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Dirican E, Kankaya B, Büyükaşık S, Alış H, Velidedeoğlu M, İlvan S, İlvan A. Investigation of alterations in PIK3CA and OCT-4 gene expression in breast cancer. GENE REPORTS 2020. [DOI: 10.1016/j.genrep.2020.100942] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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8
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Kottmann JS, Jørgensen MGP, Bertolini F, Loh A, Tomkiewicz J. Differential impacts of carp and salmon pituitary extracts on induced oogenesis, egg quality, molecular ontogeny and embryonic developmental competence in European eel. PLoS One 2020; 15:e0235617. [PMID: 32634160 PMCID: PMC7340298 DOI: 10.1371/journal.pone.0235617] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2020] [Accepted: 06/19/2020] [Indexed: 12/26/2022] Open
Abstract
Low egg quality and embryonic survival are critical challenges in aquaculture, where assisted reproduction procedures and other factors may impact egg quality. This includes European eel (Anguilla anguilla), where pituitary extract from carp (CPE) or salmon (SPE) is applied to override a dopaminergic inhibition of the neuroendocrine system, preventing gonadotropin secretion and gonadal development. The present study used either CPE or SPE to induce vitellogenesis in female European eel and compared impacts on egg quality and offspring developmental competence with emphasis on the maternal-to-zygotic transition (MZT). Females treated with SPE produced significantly higher proportions of floating eggs with fewer cleavage abnormalities and higher embryonic survival. These findings related successful embryogenesis to higher abundance of mRNA transcripts of genes involved in cell adhesion, activation of MZT, and immune response (dcbld1, epcam, oct4, igm) throughout embryonic development. The abundance of mRNA transcripts of cldnd, foxr1, cea, ccna1, ccnb1, ccnb2, zar1, oct4, and npm2 was relatively stable during the first eight hours, followed by a drop during MZT and low levels thereafter, indicating transfer and subsequent clearance of maternal mRNA. mRNA abundance of zar1, epcam, and dicer1 was associated with cleavage abnormalities, while mRNA abundance of zar1, sox2, foxr1, cldnd, phb2, neurod4, and neurog1 (before MZT) was associated with subsequent embryonic survival. In a second pattern, low initial mRNA abundance with an increase during MZT and higher levels persisting thereafter indicating the activation of zygotic transcription. mRNA abundance of ccna1, npm2, oct4, neurod4, and neurog1 during later embryonic development was associated with hatch success. A deviating pattern was observed for dcbld1, which mRNA levels followed the maternal-effect gene pattern but only for embryos from SPE treated females. Together, the differences in offspring production and performance reported in this study show that PE composition impacts egg quality and embryogenesis and in particular, the transition from initial maternal transcripts to zygotic transcription.
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Affiliation(s)
- Johanna S. Kottmann
- National Institute of Aquatic Resources, Technical University of Denmark, Kgs. Lyngby, Denmark
| | | | - Francesca Bertolini
- National Institute of Aquatic Resources, Technical University of Denmark, Kgs. Lyngby, Denmark
| | - Adrian Loh
- School of Science, University of Greenwich, Chatham Maritime, Kent, United Kingdom
| | - Jonna Tomkiewicz
- National Institute of Aquatic Resources, Technical University of Denmark, Kgs. Lyngby, Denmark
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9
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Sun B, Gui L, Liu R, Hong Y, Li M. Medaka oct4 is essential for gastrulation, central nervous system development and angiogenesis. Gene 2020; 733:144270. [DOI: 10.1016/j.gene.2019.144270] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Revised: 11/15/2019] [Accepted: 11/15/2019] [Indexed: 02/06/2023]
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10
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Ruivo R, Capitão A, Castro LFC, Santos MM. The cycling gonad: retinoic-acid synthesis and degradation patterns during adult zebrafish Danio rerio oogenesis. JOURNAL OF FISH BIOLOGY 2018; 92:1051-1064. [PMID: 29465800 DOI: 10.1111/jfb.13564] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2017] [Accepted: 01/17/2018] [Indexed: 06/08/2023]
Abstract
The expression pattern of genes coding for enzymes of the retinoic acid (RA) synthetic and degradation pathways was characterized in adult female zebrafish Danio rerio. Females were conditioned until maturation and post-spawn expression dynamics were determined. A striking upregulation of cyp26b1, but not cyp26a1, was observed following egg deposition, decreasing to initial levels during recovery. A similar, yet lower, fluctuation was observed for aldh1a2 and rdh10a, the enzymes participating in the two-step RA biosynthesis cascade. The present work highlights the dynamics of the adult D. rerio oogenesis and uncovers novel, yet elusive, metabolic contributors. Possible compartmentalized roles for the different gene paralogue isoforms are discussed.
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Affiliation(s)
- R Ruivo
- CIIMAR - Interdisciplinary Centre of Marine and Environmental Research, U. Porto, Terminal de Cruzeiros do Porto de Leixões, Avenue General Norton de Matos S/N, 4450-208, Matosinhos, Portugal
| | - A Capitão
- CIIMAR - Interdisciplinary Centre of Marine and Environmental Research, U. Porto, Terminal de Cruzeiros do Porto de Leixões, Avenue General Norton de Matos S/N, 4450-208, Matosinhos, Portugal
- FCUP - Faculty of Sciences, Department of Biology, U. Porto, Rua do Campo Alegre 1021/1055, 4169-007, Porto, Portugal
| | - L F C Castro
- CIIMAR - Interdisciplinary Centre of Marine and Environmental Research, U. Porto, Terminal de Cruzeiros do Porto de Leixões, Avenue General Norton de Matos S/N, 4450-208, Matosinhos, Portugal
- FCUP - Faculty of Sciences, Department of Biology, U. Porto, Rua do Campo Alegre 1021/1055, 4169-007, Porto, Portugal
| | - M M Santos
- CIIMAR - Interdisciplinary Centre of Marine and Environmental Research, U. Porto, Terminal de Cruzeiros do Porto de Leixões, Avenue General Norton de Matos S/N, 4450-208, Matosinhos, Portugal
- FCUP - Faculty of Sciences, Department of Biology, U. Porto, Rua do Campo Alegre 1021/1055, 4169-007, Porto, Portugal
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Jing W, Xiaohuan H, Zhenhua F, Zhuo Y, Fan D, Wenjing T, Linyan Z, Deshou W. Promoter activity and regulation of the Pou5f1 homolog from a teleost, Nile tilapia. Gene 2018; 642:277-283. [DOI: 10.1016/j.gene.2017.11.036] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2017] [Revised: 11/02/2017] [Accepted: 11/13/2017] [Indexed: 12/15/2022]
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12
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Wei J, Fan Z, Yang Z, Zhou Y, Da F, Zhou L, Tao W, Wang D. Leukemia Inhibitory Factor Is Essential for the Self-Renewal of Embryonic Stem Cells from Nile Tilapia (Oreochromis niloticus) Through Stat3 Signaling. Stem Cells Dev 2018; 27:123-132. [DOI: 10.1089/scd.2017.0207] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Affiliation(s)
- Jing Wei
- Key Laboratory of Freshwater Fish Reproduction and Development, Ministry of Education, Laboratory of Aquatic Science of Chongqing, School of Life Sciences, Southwest University, Chongqing, China
| | - Zhenhua Fan
- Key Laboratory of Freshwater Fish Reproduction and Development, Ministry of Education, Laboratory of Aquatic Science of Chongqing, School of Life Sciences, Southwest University, Chongqing, China
| | - Zhuo Yang
- Key Laboratory of Freshwater Fish Reproduction and Development, Ministry of Education, Laboratory of Aquatic Science of Chongqing, School of Life Sciences, Southwest University, Chongqing, China
| | - Yujie Zhou
- Key Laboratory of Freshwater Fish Reproduction and Development, Ministry of Education, Laboratory of Aquatic Science of Chongqing, School of Life Sciences, Southwest University, Chongqing, China
| | - Fan Da
- Key Laboratory of Freshwater Fish Reproduction and Development, Ministry of Education, Laboratory of Aquatic Science of Chongqing, School of Life Sciences, Southwest University, Chongqing, China
| | - Linyan Zhou
- Key Laboratory of Freshwater Fish Reproduction and Development, Ministry of Education, Laboratory of Aquatic Science of Chongqing, School of Life Sciences, Southwest University, Chongqing, China
| | - Wenjing Tao
- Key Laboratory of Freshwater Fish Reproduction and Development, Ministry of Education, Laboratory of Aquatic Science of Chongqing, School of Life Sciences, Southwest University, Chongqing, China
| | - Deshou Wang
- Key Laboratory of Freshwater Fish Reproduction and Development, Ministry of Education, Laboratory of Aquatic Science of Chongqing, School of Life Sciences, Southwest University, Chongqing, China
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Fan Z, Liu L, Huang X, Zhao Y, Zhou L, Wang D, Wei J. Establishment and growth responses of Nile tilapia embryonic stem-like cell lines under feeder-free condition. Dev Growth Differ 2017; 59:83-93. [PMID: 28230233 DOI: 10.1111/dgd.12341] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2016] [Revised: 01/10/2017] [Accepted: 01/17/2017] [Indexed: 01/02/2023]
Abstract
Embryonic stem (ES) cells provide an invaluable tool for molecular analysis of vertebrate development and a bridge linking genomic manipulations in vitro and functional analysis of target genes in vivo. Work towards fish ES cells so far has focused on zebrafish (Danio renio) and medaka (Oryzias latipes). Here we describe the derivation, pluripotency, differentiation and growth responses of ES cell lines from Nile tilapia (Oreochromis niloticus), a world-wide commercial farmed fish. These cell lines, designated as TES1-3, were initiated from blastomeres of Nile tilapia middle blastula embryos (MBE). One representative line, TES1, showed stable growth and phenotypic characteristics of ES cells over 200 days of culture with more than 59 passages under feeder-free conditions. They exhibited high alkaline phosphatase activity and expression of pluripotency genes including pou5f3 (the pou5f1/oct4 homologue), sox2, myc and klf4. In suspension culture together with retinoic acid treatment, TES1 cells formed embryoid bodies, which exhibited expression profile of differentiation genes characteristics of all three germ cell layers. Notably, PKH26-labeled TES1 cells introduced into Nile tilapia MBE could contribute to body compartment development and led to hatched chimera formation with an efficacy of 13%. These results suggest that TES1 cells have pluripotency and differentiation potential in vitro and in vivo. In the conditioned DMEM, all of the supplements including the fetal bovine serum, fish embryonic extract, fish serum, basic fibroblast growth factor and non-protein supplement combination 5N were mitogenic for TES1 cell growth. This study will promote ES-based biotechnology in commercial fish.
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Affiliation(s)
- Zhenhua Fan
- Key Laboratory of Freshwater Fish Reproduction and Development, Ministry of Education, Laboratory of Aquatic Science of Chongqing, School of Life Sciences, Southwest University, Chongqing, China
| | - Linyan Liu
- Key Laboratory of Freshwater Fish Reproduction and Development, Ministry of Education, Laboratory of Aquatic Science of Chongqing, School of Life Sciences, Southwest University, Chongqing, China
| | - Xiaohuan Huang
- Key Laboratory of Freshwater Fish Reproduction and Development, Ministry of Education, Laboratory of Aquatic Science of Chongqing, School of Life Sciences, Southwest University, Chongqing, China
| | - Yang Zhao
- Key Laboratory of Freshwater Fish Reproduction and Development, Ministry of Education, Laboratory of Aquatic Science of Chongqing, School of Life Sciences, Southwest University, Chongqing, China
| | - Linyan Zhou
- Key Laboratory of Freshwater Fish Reproduction and Development, Ministry of Education, Laboratory of Aquatic Science of Chongqing, School of Life Sciences, Southwest University, Chongqing, China
| | - Deshou Wang
- Key Laboratory of Freshwater Fish Reproduction and Development, Ministry of Education, Laboratory of Aquatic Science of Chongqing, School of Life Sciences, Southwest University, Chongqing, China
| | - Jing Wei
- Key Laboratory of Freshwater Fish Reproduction and Development, Ministry of Education, Laboratory of Aquatic Science of Chongqing, School of Life Sciences, Southwest University, Chongqing, China
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Gao J, Wang X, Zhang Q. Evolutionary Conservation of pou5f3 Genomic Organization and Its Dynamic Distribution during Embryogenesis and in Adult Gonads in Japanese Flounder Paralichthys olivaceus. Int J Mol Sci 2017; 18:ijms18010231. [PMID: 28124980 PMCID: PMC5297860 DOI: 10.3390/ijms18010231] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2016] [Revised: 01/09/2017] [Accepted: 01/17/2017] [Indexed: 01/06/2023] Open
Abstract
Octamer-binding transcription factor 4 (Oct4) is a member of POU (Pit-Oct-Unc) transcription factor family Class V that plays a crucial role in maintaining the pluripotency and self-renewal of stem cells. Though it has been deeply investigated in mammals, its lower vertebrate homologue, especially in the marine fish, is poorly studied. In this study, we isolated the full-length sequence of Paralichthys olivaceus pou5f3 (Popou5f3), and we found that it is homologous to mammalian Oct4. We identified two transcript variants with different lengths of 3′-untranslated regions (UTRs) generated by alternative polyadenylation (APA). Quantitative real-time RT-PCR (qRT-PCR), in situ hybridization (ISH) and immunohistochemistry (IHC) were implemented to characterize the spatial and temporal expression pattern of Popou5f3 during early development and in adult tissues. Our results show that Popou5f3 is maternally inherited, abundantly expressed at the blastula and early gastrula stages, then greatly diminishes at the end of gastrulation. It is hardly detectable from the heart-beating stage onward. We found that Popou5f3 expression is restricted to the adult gonads, and continuously expresses during oogenesis while its dynamics are downregulated during spermatogenesis. Additionally, numerous cis-regulatory elements (CRE) on both sides of the flanking regions show potential roles in regulating the expression of Popou5f3. Taken together, these findings could further our understanding of the functions and evolution of pou5f3 in lower vertebrates, and also provides fundamental information for stem cell tracing and genetic manipulation in Paralichthys olivaceus.
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Affiliation(s)
- Jinning Gao
- College of Marine Life Science, Ocean University of China, Key Laboratory of Marine Genetics and Breeding, Ministry of Education, Qingdao 266003, China.
- Center for Developmental Cardiology, Institute for Translational Medicine, College of Medicine, Qingdao University, Qingdao 266021, China.
| | - Xubo Wang
- College of Marine Life Science, Ocean University of China, Key Laboratory of Marine Genetics and Breeding, Ministry of Education, Qingdao 266003, China.
| | - Quanqi Zhang
- College of Marine Life Science, Ocean University of China, Key Laboratory of Marine Genetics and Breeding, Ministry of Education, Qingdao 266003, China.
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