1
|
Souza VVD, Moreira DP, Braz-Mota S, Valente W, Cotta GC, Rodrigues MDS, Nóbrega RH, Corrêa RDS, Hoyos DCDM, Sanches EA, Val AL, Lacerda SMDSN. Simulated climate change and atrazine contamination can synergistically impair zebrafish testicular function. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 946:174173. [PMID: 38925398 DOI: 10.1016/j.scitotenv.2024.174173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 05/25/2024] [Accepted: 06/19/2024] [Indexed: 06/28/2024]
Abstract
Elements that interfere with reproductive processes can have profound impacts on population and the equilibrium of ecosystems. Global warming represents the major environmental challenge of the 21st century, as it will affect all forms of life in the coming decades. Another coexisting concern is the persistent pollution by pesticides, particularly the herbicide Atrazine (ATZ), which is responsible for a significant number of contamination incidents in surface waters worldwide. While it is hypothesized that climate changes will significantly enhance the toxic effects of pesticides, the actual impact of these phenomena remain largely unexplored. Here, we conducted a climate-controlled room experiment to assess the interactive effects of the projected 2100 climate scenario and environmentally realistic ATZ exposures on the reproductive function of male zebrafish. The gonadosomatic index significantly decreased in fish kept in the extreme scenario. Cellular alterations across spermatogenesis phases led to synergic decreased sperm production and increased germ cell sloughing and death. ATZ exposure alone or combined with climate change effects, disrupted the transcription levels of key genes involved in steroidogenesis, hormone signaling and spermatogenesis regulation. An additive modulation with decreased 11-KT production and increased E2 levels was also evidenced, intensifying the effects of androgen/estrogen imbalance. Moreover, climate change and ATZ independently induced oxidative stress, upregulation of proapoptotic gene and DNA damage in post-meiotic germ cell, but the negative effects of ATZ were greater at extreme scenario. Ultimately, exposure to simulated climate changes severely impaired fertilization capacity, due to a drastic reduction in sperm motility and/or viability. These findings indicate that the future climate conditions have the potential to considerably enhance the toxicity of ATZ at low concentrations, leading to significant deleterious consequences for fish reproductive function and fertility. These may provide relevant information to supporting healthcare and environmental managers in decision-making related to climate changes and herbicide regulation.
Collapse
Affiliation(s)
- Victor Ventura de Souza
- Laboratory of Cellular Biology, Department of Morphology, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Davidson Peruci Moreira
- Laboratory of Ichthiohistology, Department of Morphology, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Susana Braz-Mota
- Laboratory of Ecophysiology and Molecular Evolution, Brazilian National Institute for Research in the Amazon, Manaus, Amazonas, Brazil
| | - Wanderson Valente
- Laboratory of Cellular Biology, Department of Morphology, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Gustavo Caldeira Cotta
- Laboratory of Cellular Biology, Department of Morphology, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Maira da Silva Rodrigues
- Reproductive and Molecular Biology Group, Department of Structural and Functional Biology, Institute of Biosciences, São Paulo State University (UNESP), Botucatu, São Paulo, Brazil
| | - Rafael Henrique Nóbrega
- Reproductive and Molecular Biology Group, Department of Structural and Functional Biology, Institute of Biosciences, São Paulo State University (UNESP), Botucatu, São Paulo, Brazil
| | - Rebeca Dias Serafim Corrêa
- Laboratory of Cellular Biology, Department of Morphology, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | | | - Eduardo Antônio Sanches
- Faculty of Agricultural Sciences of Vale do Ribeira, São Paulo State University (UNESP), Brazil
| | - Adalberto Luís Val
- Laboratory of Ecophysiology and Molecular Evolution, Brazilian National Institute for Research in the Amazon, Manaus, Amazonas, Brazil
| | | |
Collapse
|
2
|
Vigoya AAA, Martinez ERM, Digmayer M, de Oliveira MA, Butzge AJ, Rosa IF, Doretto LB, Nóbrega RH. Characterization and enrichment of spermatogonial stem cells of common carp (Cyprinus carpio). Theriogenology 2024; 214:233-244. [PMID: 37939542 DOI: 10.1016/j.theriogenology.2023.10.021] [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: 08/16/2023] [Revised: 10/13/2023] [Accepted: 10/15/2023] [Indexed: 11/10/2023]
Abstract
Spermatogenesis is a systematically organized process that ensures uninterrupted sperm production in which the spermatogonial stem cells (SSCs) play a crucial role. However, the existing absence of teleost-specific molecular markers for SSCs presents a notable challenge. Herein we characterized phenotypically the spermatogonial stem cells using specific molecular markers and transmission electron microscopy. Moreover, we also describe a simple method to suppress common carp spermatogenesis using the combination of Busulfan and thermo-chemical treatment, and finally, we isolate and enrich the undifferentiated spermatogonial fraction. Our results showed that C-kit, GFRα1, and POU2 proteins were expressed by germ cells, meanwhile, undifferentiated spermatogonial populations preferentially expressed GFRα1 and POU2. Moreover, the combination of high temperature (35 °C) and Busulfan (40 mg/kg/BW) effectively suppressed the spermatogenesis of common carp males. Additionally, the amh expression analysis showed differences between the control (26 °C) when compared to 35 °C with a single or two Busulfan doses, confirming that the testes were depleted by the association of Busulfan at high temperatures. In an attempt to isolate the undifferentiated spermatogonial fraction, we used the Percoll discontinuous density gradient. Thus, we successfully dissociated the carp whole testes in different cellular fractions; subsequently, we isolated and enriched the undifferentiated spermatogonial population. Therefore, our results suggest that probably both GFRα-1 and POU2 are highly conserved factors expressed in common carp germinative epithelium and that these molecules were well conserved along the evolutionary process. Furthermore, the enriched undifferentiated spermatogonial population developed here can be used in further germ cell transplantation experiments to preserve and propagate valued and endangered fish species.
Collapse
Affiliation(s)
- Angel A A Vigoya
- Aquaculture Center of São Paulo State University, CAUNESP, Jaboticabal, 14884-900, São Paulo, Brazil; Faculty of Veterinary Medicine and Animal Science, San Martín University Foundation (FUSM), Bogotá, 760030, Colombia
| | - Emanuel R M Martinez
- Department of Structural and Functional Biology, Institute of Biosciences, São Paulo State University (UNESP), Botucatu, 01049-010, Brazil
| | - Melanie Digmayer
- Department of Structural and Functional Biology, Institute of Biosciences, São Paulo State University (UNESP), Botucatu, 01049-010, Brazil
| | - Marcos A de Oliveira
- Aquaculture Center of São Paulo State University, CAUNESP, Jaboticabal, 14884-900, São Paulo, Brazil; Department of Structural and Functional Biology, Institute of Biosciences, São Paulo State University (UNESP), Botucatu, 01049-010, Brazil
| | - Arno J Butzge
- Department of Structural and Functional Biology, Institute of Biosciences, São Paulo State University (UNESP), Botucatu, 01049-010, Brazil
| | - Ivana F Rosa
- Department of Structural and Functional Biology, Institute of Biosciences, São Paulo State University (UNESP), Botucatu, 01049-010, Brazil
| | - Lucas B Doretto
- Department of Structural and Functional Biology, Institute of Biosciences, São Paulo State University (UNESP), Botucatu, 01049-010, Brazil; Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, 266071, China; National Key Laboratory of Mariculture Biobreeding and Sustainable Goods, Qingdao, 266071, China.
| | - Rafael H Nóbrega
- Department of Structural and Functional Biology, Institute of Biosciences, São Paulo State University (UNESP), Botucatu, 01049-010, Brazil.
| |
Collapse
|
3
|
Transcriptomes of testis and pituitary from male Nile tilapia (O. niloticus L.) in the context of social status. PLoS One 2022; 17:e0268140. [PMID: 35544481 PMCID: PMC9094562 DOI: 10.1371/journal.pone.0268140] [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: 11/03/2021] [Accepted: 04/22/2022] [Indexed: 11/19/2022] Open
Abstract
African cichlids are well established models for studying social hierarchies in teleosts and elucidating the effects social dominance has on gene expression. Ascension in the social hierarchy has been found to increase plasma levels of steroid hormones, follicle stimulating hormone (Fsh) and luteinizing hormone (Lh) as well as gonadosomatic index (GSI). Furthermore, the expression of genes related to gonadotropins and steroidogenesis and signaling along the brain-pituitary-gonad axis (BPG-axis) is affected by changes of an animal’s social status. In this study, we use RNA-sequencing to obtain an in-depth look at the transcriptomes of testes and pituitaries from dominant and subordinate male Nile tilapia living in long-term stable social hierarchies. This allows us to draw conclusions about factors along the brain-pituitary-gonad axis that are involved in maintaining dominance over weeks or even months. We identify a number of genes that are differentially regulated between dominant and subordinate males and show that in high-ranking fish this subset of genes is generally upregulated. Genes differentially expressed between the two social groups comprise growth factors, related binding proteins and receptors, components of Wnt-, Tgfβ- and retinoic acid-signaling pathway, gonadotropin signaling and steroidogenesis pathways. The latter is backed up by elevated levels of 11-ketotestosterone, testosterone and estradiol in dominant males. Luteinizing hormone (Lh) is found in higher concentration in the plasma of long-term dominant males than in subordinate animals. Our results both strengthen the existing models and propose new candidates for functional studies to expand our understanding of social phenomena in teleost fish.
Collapse
|
4
|
Begum S, Gnanasree SM, Anusha N, Senthilkumaran B. Germ cell markers in fishes - A review. AQUACULTURE AND FISHERIES 2022. [DOI: 10.1016/j.aaf.2022.03.015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
|
5
|
Xie X, Tichopád T, Kislik G, Langerová L, Abaffy P, Šindelka R, Franěk R, Fučíková M, Steinbach C, Shah MA, Šauman I, Chen F, Pšenička M. Isolation and Characterization of Highly Pure Type A Spermatogonia From Sterlet ( Acipenser ruthenus) Using Flow-Cytometric Cell Sorting. Front Cell Dev Biol 2021; 9:772625. [PMID: 34957105 PMCID: PMC8708567 DOI: 10.3389/fcell.2021.772625] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Accepted: 11/08/2021] [Indexed: 12/17/2022] Open
Abstract
Sturgeons are among the most ancient linages of actinopterygians. At present, many sturgeon species are critically endangered. Surrogate production could be used as an affordable and a time-efficient method for endangered sturgeons. Our study established a method for identifying and isolating type A spermatogonia from different developmental stages of testes using flow cytometric cell sorting (FCM). Flow cytometric analysis of a whole testicular cell suspension showed several well-distinguished cell populations formed according to different values of light scatter parameters. FCM of these different cell populations was performed directly on glass slides for further immunocytochemistry to identify germ cells. Results showed that the cell population in gate P1 on a flow cytometry plot (with high forward scatter and high side scatter parameter values) contains the highest amount of type A spermatogonia. The sorted cell populations were characterized by expression profiles of 10 germ cell specific genes. The result confirmed that setting up for the P1 gate could precisely sort type A spermatogonia in all tested testicular developmental stages. The P2 gate, which was with lower forward scatter and side scatter values mostly, contained type B spermatogonia at a later maturing stage. Moreover, expressions of plzf, dnd, boule, and kitr were significantly higher in type A spermatogonia than in later developed germ cells. In addition, plzf was firstly found as a reliable marker to identify type A spermatogonia, which filled the gap of identification of spermatogonial stem cells in sterlet. It is expected to increase the efficiency of germ stem cell culture and transplantation with plzf identification. Our study thus first addressed a phenotypic characterization of a pure type A spermatogonia population in sterlet. FCM strategy can improve the production of sturgeons with surrogate broodstock and further the analysis of the cellular and molecular mechanisms of sturgeon germ cell development.
Collapse
Affiliation(s)
- Xuan Xie
- South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Faculty of Fisheries and Protection of Waters, Research Institute of Fish Culture and Hydrobiology, University of South Bohemia in České Budějovice, Vodňany, Czechia
| | - Tomáš Tichopád
- South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Faculty of Fisheries and Protection of Waters, Research Institute of Fish Culture and Hydrobiology, University of South Bohemia in České Budějovice, Vodňany, Czechia
| | - Galina Kislik
- Imaging Methods Core Facility at BIOCEV, Operated by Faculty of Science, Charles University in Prague, Vestec, Czechia
| | - Lucie Langerová
- Laboratory of Gene Expression, Institute of Biotechnology of the Czech Academy of Sciences, Vestec, Czechia
| | - Pavel Abaffy
- Laboratory of Gene Expression, Institute of Biotechnology of the Czech Academy of Sciences, Vestec, Czechia
| | - Radek Šindelka
- Laboratory of Gene Expression, Institute of Biotechnology of the Czech Academy of Sciences, Vestec, Czechia
| | - Roman Franěk
- South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Faculty of Fisheries and Protection of Waters, Research Institute of Fish Culture and Hydrobiology, University of South Bohemia in České Budějovice, Vodňany, Czechia
| | - Michaela Fučíková
- South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Faculty of Fisheries and Protection of Waters, Research Institute of Fish Culture and Hydrobiology, University of South Bohemia in České Budějovice, Vodňany, Czechia
| | - Christoph Steinbach
- South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Faculty of Fisheries and Protection of Waters, Research Institute of Fish Culture and Hydrobiology, University of South Bohemia in České Budějovice, Vodňany, Czechia
| | - Mujahid Ali Shah
- South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Faculty of Fisheries and Protection of Waters, Research Institute of Fish Culture and Hydrobiology, University of South Bohemia in České Budějovice, Vodňany, Czechia
| | - Ivo Šauman
- Biology Center of the Czech Academy of Sciences, Institute of Entomology, České Budějovice, Czechia.,University of South Bohemia, Faculty of Science, České Budějovice, Czechia
| | - Fan Chen
- Department of Pharmacology, C_DAT, University Medicine Greifswald, Greifswald, Germany
| | - Martin Pšenička
- South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Faculty of Fisheries and Protection of Waters, Research Institute of Fish Culture and Hydrobiology, University of South Bohemia in České Budějovice, Vodňany, Czechia
| |
Collapse
|
6
|
Zhou L, Wang X, Liu Q, Yang J, Xu S, Wu Z, Wang Y, You F, Song Z, Li J. Successful Spermatogonial Stem Cells Transplantation within Pleuronectiformes: First Breakthrough at inter-family Level in Marine Fish. Int J Biol Sci 2021; 17:4426-4441. [PMID: 34803508 PMCID: PMC8579436 DOI: 10.7150/ijbs.63266] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Accepted: 10/06/2021] [Indexed: 11/12/2022] Open
Abstract
As a promising biotechnology, fish germ cell transplantation shows potentials in conservation germplasm resource, propagation of elite species, and generation of transgenic individuals. In this study, we successfully transplanted the Japanese flounder (P. olivaceus), summer flounder (P. dentatus), and turbot (S. maximus) spermatogonia into triploid Japanese flounder larvae, and achieved high transplantation efficiency of 100%, 75-95% and 33-50% by fluorescence tracking and molecular analysis, respectively. Eventually, donor-derived spermatozoa produced offspring by artificial insemination. We only found male and intersex chimeras in inter-family transplantations, while male and female chimeras in both intra-species and intra-genus transplantations. Moreover, the intersex chimeras could mature and produce turbot functional spermatozoa. We firstly realized inter-family transplantation in marine fish species. These results demonstrated successful spermatogonial stem cells transplantation within Pleuronectiformes, suggesting the germ cells migration, incorporation and maturation within order were conserved across a wide range of teleost species.
Collapse
Affiliation(s)
- Li Zhou
- The Key Laboratory of Experimental Marine Biology, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China.,Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China.,College of Life Science, Ningde Normal University, Engineering Research Center of Mindong Aquatic Product Deep-Processing, Fujian Province University, Ningde, China
| | - Xueying Wang
- The Key Laboratory of Experimental Marine Biology, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China.,Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
| | - Qinghua Liu
- The Key Laboratory of Experimental Marine Biology, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China.,Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
| | - Jingkun Yang
- The Key Laboratory of Experimental Marine Biology, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China
| | - Shihong Xu
- The Key Laboratory of Experimental Marine Biology, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China.,Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
| | - Zhihao Wu
- The Key Laboratory of Experimental Marine Biology, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China
| | - Yanfeng Wang
- The Key Laboratory of Experimental Marine Biology, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China.,Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
| | - Feng You
- The Key Laboratory of Experimental Marine Biology, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China
| | - Zongcheng Song
- Weihai Shenghang Aquatic Product Science and Technology Co. Ltd., Weihai, China
| | - Jun Li
- The Key Laboratory of Experimental Marine Biology, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China.,Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
| |
Collapse
|
7
|
Postingel Quirino P, da Silva Rodrigues M, da Silva Cabral EM, de Siqueira-Silva DH, Mori RH, Butzge AJ, Nóbrega RH, Ninhaus-Silveira A, Veríssimo-Silveira R. The influence of increased water temperature on the duration of spermatogenesis in a neotropical fish, Astyanax altiparanae (Characiformes, Characidae). FISH PHYSIOLOGY AND BIOCHEMISTRY 2021; 47:747-755. [PMID: 32889598 DOI: 10.1007/s10695-020-00869-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Accepted: 08/28/2020] [Indexed: 06/11/2023]
Abstract
In view of the established climate change scenario and the consequent changes in global temperature, it is essential to study its effects on animal spermatogenesis. Therefore, the aim of this study was to verify the duration of spermatogenesis at different temperatures. For this purpose, 96 male and adult specimens of Astyanax altiparanae were kept in a closed circulation system with water temperature stabilized at 27 °C and 32 °C. Subsequently, the specimens received pulses of BrdU (bromodeoxyuridine) at a concentration of 100 mg/kg/day for 2 consecutive days, and the samples were collected daily for a period of 15 days. Their testes were removed, fixed, processed in historesin, and sectioned in 3 μm, submitted to hematoxylin/eosin staining and to bromodeoxyuridine immunodetection. Partial results of the optimum temperature experiments allowed the classification of A. altiparanae spermatogenic cells in Aund, Adiff, and type B spermatogonia, spermatocytes, spermatids, and spermatozoa. The duration of spermatogenesis was determined as approximately 6 days for animals at a temperature of 27 °C and 1 day for animals at 32 °C. The elevated temperature was also responsible for increasing cell proliferation, resulting in an increase in the number of spermatocytes, spermatids, spermatozoa, and cell death (cell pyknotic). The duration of spermatogenesis in A. altiparanae was directly affected by the elevated water temperature, causing a reduction in the estimated time of spermatogenesis.
Collapse
Affiliation(s)
- Patricia Postingel Quirino
- Departamento de Biologia e Zootecnia. L.I.NEO - Laboratory of Neotropical Ichthyology, UNESP - Universidade Estadual Paulista "Júlio de Mesquita Filho", Câmpus de Ilha Solteira, Rua Monção, n 226, 15385-000, Ilha Solteira, São Paulo, Brazil.
- Programa de Pós-Graduação em Ciências Biológicas (Zoologia), Instituto de Biociências de Botucatu (UNESP - IBB), R. Prof. Dr. Antonio Celso Wagner Zanin, 250, 18618-689, Botucatu, São Paulo, Brazil.
| | - Maira da Silva Rodrigues
- Departamento de Biologia e Zootecnia. L.I.NEO - Laboratory of Neotropical Ichthyology, UNESP - Universidade Estadual Paulista "Júlio de Mesquita Filho", Câmpus de Ilha Solteira, Rua Monção, n 226, 15385-000, Ilha Solteira, São Paulo, Brazil
| | - Elis Marina da Silva Cabral
- Departamento de Biologia e Zootecnia. L.I.NEO - Laboratory of Neotropical Ichthyology, UNESP - Universidade Estadual Paulista "Júlio de Mesquita Filho", Câmpus de Ilha Solteira, Rua Monção, n 226, 15385-000, Ilha Solteira, São Paulo, Brazil
| | - Diógenes Henrique de Siqueira-Silva
- Instituto de Estudo em Saúde e Biologicas (IESB), Research Group of Reproduction on Amazon Fish (GERPA/LaNec), UNIFESSPA - Universidade Federal do Sul e Sudeste do Para, Folha 31, Quadra 07, Lote especial s/n, 68.507-590, Marabá, Brazil
| | - Ricardo Hideo Mori
- Departamento de Biologia e Zootecnia. L.I.NEO - Laboratory of Neotropical Ichthyology, UNESP - Universidade Estadual Paulista "Júlio de Mesquita Filho", Câmpus de Ilha Solteira, Rua Monção, n 226, 15385-000, Ilha Solteira, São Paulo, Brazil
| | - Arno Juliano Butzge
- Departamento de Morfologia, Reproductive and Molecular Biology Group, UNESP - Universidade Estadual Paulista "Júlio de Mesquita Filho", Câmpus de Botucatu, Instituto de Biociências de Botucatu, R. Prof.Dr. Antonio Celso Wagner Zanin, 250, 18618-689, Botucatu, São Paulo, Brazil
| | - Rafael Henrique Nóbrega
- Departamento de Morfologia, Reproductive and Molecular Biology Group, UNESP - Universidade Estadual Paulista "Júlio de Mesquita Filho", Câmpus de Botucatu, Instituto de Biociências de Botucatu, R. Prof.Dr. Antonio Celso Wagner Zanin, 250, 18618-689, Botucatu, São Paulo, Brazil
| | - Alexandre Ninhaus-Silveira
- Departamento de Biologia e Zootecnia. L.I.NEO - Laboratory of Neotropical Ichthyology, UNESP - Universidade Estadual Paulista "Júlio de Mesquita Filho", Câmpus de Ilha Solteira, Rua Monção, n 226, 15385-000, Ilha Solteira, São Paulo, Brazil
| | - Rosicleire Veríssimo-Silveira
- Departamento de Biologia e Zootecnia. L.I.NEO - Laboratory of Neotropical Ichthyology, UNESP - Universidade Estadual Paulista "Júlio de Mesquita Filho", Câmpus de Ilha Solteira, Rua Monção, n 226, 15385-000, Ilha Solteira, São Paulo, Brazil.
| |
Collapse
|
8
|
Dias GCM, Batlouni SR, Cassel M, Chehade C, De Jesus LWO, Branco GS, Camargo MP, Borella MI. Isolation, in vitro study, and stem cell markers for type A spermatogonia in a Characiformes species. Mol Reprod Dev 2020; 87:783-799. [PMID: 32557886 DOI: 10.1002/mrd.23394] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2019] [Revised: 05/31/2020] [Accepted: 06/04/2020] [Indexed: 12/20/2022]
Abstract
The objective of this study was to establish a protocol for the characterization, isolation, and culture of type A spermatogonia using specific molecular markers for these cells in fish. To this end, adult Prochilodus lineatus testes were collected and digested enzymatically and the resulting testicular suspension was separated using a discontinuous Percoll gradient, followed by differential plating. The cell cultures obtained were monitored for 15 days and analyzed using the immunofluorescence method with anti-Vasa, anti-GFRα1, and anti-OCT4 antibodies. Spermatogonial enrichment was also performed using flow cytometry. Although discontinuous Percoll gradient centrifugation followed by differential plating enabled the removal of differentiated germ cells and somatic cells, enriching the pool of type A spermatogonia, the enrichment of type A spermatogonia through flow cytometry of samples without Percoll proved to be more efficient. Prominent cell agglomerates that were characterized according to different stem cell markers as type A spermatogonia were observed during the 15 days of the cell culture. The use of immunoperoxidase and western blot analysis methods confirmed the specificity of the markers for type A spermatogonia of P. lineatus. When combined with specific cell culture conditions, the positive characterization of these molecular markers clarified certain aspects of spermatogonial regulation, such as survival and proliferation. Finally, understanding the regulation of the in vitro germ cell maintenance process may contribute to the enhancement of in vivo and in vitro reproduction techniques of endangered or aquaculture fish species.
Collapse
Affiliation(s)
- Gisele C M Dias
- Fish Endocrinology Laboratory, Department of Cell and Developmental Biology, Biomedical Sciences Institute, University of São Paulo, São Paulo, São Paulo, Brazil
| | - Sérgio R Batlouni
- Aquaculture Center of São Paulo State University (CAUNESP), São Paulo State University (UNESP), Campus Jaboticabal, Jaboticabal, São Paulo, Brazil
| | - Mônica Cassel
- Department of Education - Bachelor of Science in Animal Science, Mato Grosso Federal Institute of Education, Science, and Technology, Campus Alta Floresta, Alta Floresta, Mato Grosso, Brazil
| | - Chayrra Chehade
- Fish Endocrinology Laboratory, Department of Cell and Developmental Biology, Biomedical Sciences Institute, University of São Paulo, São Paulo, São Paulo, Brazil
| | - Lázaro W O De Jesus
- Laboratory of Applied Animal Morphophysiology, Department of Histology and Embryology, Institute of Biological Sciences and Health, Federal University of Alagoas, Campus A. C. Simões, Maceió, Alagoas, Brazil
| | - Giovana S Branco
- Fish Endocrinology Laboratory, Department of Cell and Developmental Biology, Biomedical Sciences Institute, University of São Paulo, São Paulo, São Paulo, Brazil
| | - Marília P Camargo
- Fish Endocrinology Laboratory, Department of Cell and Developmental Biology, Biomedical Sciences Institute, University of São Paulo, São Paulo, São Paulo, Brazil
| | - Maria I Borella
- Fish Endocrinology Laboratory, Department of Cell and Developmental Biology, Biomedical Sciences Institute, University of São Paulo, São Paulo, São Paulo, Brazil
| |
Collapse
|
9
|
Xie X, Nóbrega R, Pšenička M. Spermatogonial Stem Cells in Fish: Characterization, Isolation, Enrichment, and Recent Advances of In Vitro Culture Systems. Biomolecules 2020; 10:E644. [PMID: 32331205 PMCID: PMC7226347 DOI: 10.3390/biom10040644] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Revised: 04/13/2020] [Accepted: 04/14/2020] [Indexed: 12/14/2022] Open
Abstract
Spermatogenesis is a continuous and dynamic developmental process, in which a single diploid spermatogonial stem cell (SSC) proliferates and differentiates to form a mature spermatozoon. Herein, we summarize the accumulated knowledge of SSCs and their distribution in the testes of teleosts. We also reviewed the primary endocrine and paracrine influence on spermatogonium self-renewal vs. differentiation in fish. To provide insight into techniques and research related to SSCs, we review available protocols and advances in enriching undifferentiated spermatogonia based on their unique physiochemical and biochemical properties, such as size, density, and differential expression of specific surface markers. We summarize in vitro germ cell culture conditions developed to maintain proliferation and survival of spermatogonia in selected fish species. In traditional culture systems, sera and feeder cells were considered to be essential for SSC self-renewal, in contrast to recently developed systems with well-defined media and growth factors to induce either SSC self-renewal or differentiation in long-term cultures. The establishment of a germ cell culture contributes to efficient SSC propagation in rare, endangered, or commercially cultured fish species for use in biotechnological manipulation, such as cryopreservation and transplantation. Finally, we discuss organ culture and three-dimensional models for in vitro investigation of fish spermatogenesis.
Collapse
Affiliation(s)
- Xuan Xie
- Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, University of South Bohemia in Ceske Budejovice, Zátiší 728/II, 389 25 Vodňany, Czech Republic;
| | - Rafael Nóbrega
- Reproductive and Molecular Biology Group, Department of Morphology, Institute of Biosciences, São Paulo State University, Botucatu, SP 18618-970, Brazil;
| | - Martin Pšenička
- Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, University of South Bohemia in Ceske Budejovice, Zátiší 728/II, 389 25 Vodňany, Czech Republic;
| |
Collapse
|
10
|
Thönnes M, Vogt M, Steinborn K, Hausken KN, Levavi-Sivan B, Froschauer A, Pfennig F. An ex vivo Approach to Study Hormonal Control of Spermatogenesis in the Teleost Oreochromis niloticus. Front Endocrinol (Lausanne) 2020; 11:443. [PMID: 32793114 PMCID: PMC7366826 DOI: 10.3389/fendo.2020.00443] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/13/2019] [Accepted: 06/05/2020] [Indexed: 11/13/2022] Open
Abstract
As the male reproductive organ, the main task of the testis is the production of fertile, haploid spermatozoa. This process, named spermatogenesis, starts with spermatogonial stem cells, which undergo a species-specific number of mitotic divisions until starting meiosis and further morphological maturation. The pituitary gonadotropins, luteinizing hormone, and follicle stimulating hormone, are indispensable for vertebrate spermatogenesis, but we are still far from fully understanding the complex regulatory networks involved in this process. Therefore, we developed an ex vivo testis cultivation system which allows evaluating the occurring changes in histology and gene expression. The experimental circulatory flow-through setup described in this work provides the possibility to study the function of the male tilapia gonads on a cellular and transcriptional level for at least 7 days. After 1 week of culture, tilapia testis slices kept their structure and all stages of spermatogenesis could be detected histologically. Without pituitary extract (tilPE) however, fibrotic structures appeared, whereas addition of tilPE preserved spermatogenic cysts and somatic interstitium completely. We could show that tilPE has a stimulatory effect on spermatogonia proliferation in our culture system. In the presence of tilPE or hCG, the gene expression of steroidogenesis related genes (cyp11b2 and stAR2) were notably increased. Other testicular genes like piwil1, amh, or dmrt1 were not expressed differentially in the presence or absence of gonadotropins or gonadotropin containing tilPE. We established a suitable system for studying tilapia spermatogenesis ex vivo with promise for future applications.
Collapse
Affiliation(s)
- Michelle Thönnes
- Faculty of Biology, School of Science, Institute of Zoology, Technische Universität Dresden, Dresden, Germany
| | - Marlen Vogt
- Faculty of Biology, School of Science, Institute of Zoology, Technische Universität Dresden, Dresden, Germany
| | - Katja Steinborn
- Faculty of Biology, School of Science, Institute of Zoology, Technische Universität Dresden, Dresden, Germany
| | - Krist N. Hausken
- Department of Animal Sciences, The Robert H. Smith Faculty of Agriculture, Food, and Environment, Hebrew University of Jerusalem, Rehovot, Israel
| | - Berta Levavi-Sivan
- Department of Animal Sciences, The Robert H. Smith Faculty of Agriculture, Food, and Environment, Hebrew University of Jerusalem, Rehovot, Israel
| | - Alexander Froschauer
- Faculty of Biology, School of Science, Institute of Zoology, Technische Universität Dresden, Dresden, Germany
| | - Frank Pfennig
- Faculty of Biology, School of Science, Institute of Zoology, Technische Universität Dresden, Dresden, Germany
- *Correspondence: Frank Pfennig
| |
Collapse
|