51
|
Lee S, Bang WY, Yang HS, Lee DS, Song HY. Production of juvenile masu salmon (Oncorhynchus masou) from spermatogonia-derived sperm and oogonia-derived eggs via intraperitoneal transplantation of immature germ cells. Biochem Biophys Res Commun 2020; 535:6-11. [PMID: 33340766 DOI: 10.1016/j.bbrc.2020.12.021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Accepted: 12/07/2020] [Indexed: 10/22/2022]
Abstract
No effective cryopreservation technique exists for fish eggs and embryos; thus, the cryopreservation of germ cells (spermatogonia or oogonia) and subsequent generation of eggs and sperm would be an alternative solution for the long-term preservation of piscine genetic resources. Nevertheless, in our previous study using rainbow trout, we showed that recipients transplanted with XY spermatogonia or XX oogonia produced unnatural sex-biased F1 offspring. To overcome these obstacles, we transplanted immature germ cells (XX oogonia or XY spermatogonia; frozen for 33 days) into the body cavities of triploid hatchlings, and the transplanted germ cells possessed a high capacity for differentiating into eggs and sperm in the ovaries and testes of recipients. Approximately 30% of triploid recipients receiving frozen germ cells generated normal salmon that displayed the donor-derived black body color phenotype, although all triploid salmon not receiving transplants were functionally sterile. Furthermore, F1 offspring obtained from insemination of the oogonia-derived eggs and spermatogonia-derived sperm show a normal sex ratio of 1:1 (female:male). Thus, this method presented a critical technique for practical conservation projects for other teleost fish species and masu salmon.
Collapse
Affiliation(s)
- Seungki Lee
- Biological and Genetic Resources Assessment Division, National Institute of Biological Resources, Incheon, 22689, Republic of Korea.
| | - Woo Young Bang
- Biological and Genetic Resources Assessment Division, National Institute of Biological Resources, Incheon, 22689, Republic of Korea.
| | - Hee-Sun Yang
- Biological and Genetic Resources Assessment Division, National Institute of Biological Resources, Incheon, 22689, Republic of Korea.
| | - Dae-Sung Lee
- Department of Genetic Resources, National Marine Biodiversity Institute of Korea, Seocheon-gun, 33662, Republic of Korea.
| | - Ha Yeun Song
- Department of Genetic Resources, National Marine Biodiversity Institute of Korea, Seocheon-gun, 33662, Republic of Korea.
| |
Collapse
|
52
|
Hua R, Chu QJ, Zhou Y, Zhou X, Huang DX, Zhu YT. MicroRNA-449a Suppresses Mouse Spermatogonia Proliferation via Inhibition of CEP55. Reprod Sci 2020; 28:595-602. [PMID: 33095425 DOI: 10.1007/s43032-020-00354-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2020] [Accepted: 10/11/2020] [Indexed: 02/03/2023]
Abstract
At present, infertile patients with maturation arrest (MA) are difficult to obtain mature sperm. Spermatogenesis and its molecular mechanism are still not clear. Patients with MA and normal spermatogenesis (NS) were collected. iTRAQ-based proteomic approach was performed to reveal the different proteins between them. To validate the confidence of proteome data, the individual samples were analyzed by Western blotting (WB), quantitative polymerase chain reaction (qPCR), and immunofluorescence. The miR-449a and CEP55 were determined by Luciferase assay. Mouse GC-1 cells were transfected with CEP55 siRNAs, miR-449a mimic, or inhibitor, and cell proliferation was determined. Compared with NS, 27 proteins were differentially expressed in MA, and CEP55 protein was the most significant difference. WB and qPCR showed that CEP55 levels were significantly elevated in NS than MA. In transfected cells, overexpression of miR-449a and knockdown of CEP55 both downregulated CEP55 expression and decreased cell proliferation. miR-449a suppresses mouse spermatogonia proliferation via inhibition of CEP55.
Collapse
Affiliation(s)
- Rui Hua
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Qing-Jun Chu
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Yao Zhou
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Xuan Zhou
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Da-Xiong Huang
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Yong-Tong Zhu
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China.
| |
Collapse
|
53
|
Saki J, Sabaghan M, Arjmand R, Teimoori A, Rashno M, Saki G, Shojaee S. Spermatogonia apoptosis induction as a possible mechanism of Toxoplasma gondii-induced male infertility. Iran J Basic Med Sci 2020; 23:1164-1171. [PMID: 32963738 PMCID: PMC7491504 DOI: 10.22038/ijbms.2020.43535.10224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Objective(s): The protozoan Toxoplasma gondii as an intracellular protozoan is widely prevalent in humans and animals. Infection generally occurs through consuming food contaminated with oocysts and tissue cysts from undercooked meat. The parasite is carried in sexual fluids like semen but there is little information about the effect of T. gondii on the male reproductive system. In this study, we examined the effect of T. gondii tachyzoites on apoptosis induction in type B spermatogonia (GC-1) cells. Materials and Methods: Fresh tachyzoites taken of infected BALB/c mice, GC-1 spg cells were infected with increasing concentrations of tachyzoites of T. gondii, then apoptotic cells were identified and quantified by flow cytometry. The genes associated with apoptosis were evaluated by RT2 Profiler PCR Array. Results: PCR array analysis of 84 apoptosis-related genes demonstrated that 12 genes were up-regulated at least 4-fold and that one gene was down-regulated at least 2-fold in the T. gondii infection group compared with levels in the control group. The number of genes whose expression had increased during the period of infection with T. gondii was significantly higher than those whose expressions had decreased (18 versus 1) and Tnfrsf11b had the highest rate of gene expression. Conclusion: T. gondii induce in vitro apoptosis of GC-1 spg cells. This effect shows a trend of concentration-dependent increase so that with an increase in the ratio of parasite burden to spermatogonial cells, in addition to an increase in the number of genes whose expression has changed, the fold of these changes has increased as well.
Collapse
Affiliation(s)
- Jasem Saki
- Cellular and Molecular Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Mohamad Sabaghan
- Department of Parasitology, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Reza Arjmand
- Department of Parasitology, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Ali Teimoori
- Virology Department, School of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Mohammad Rashno
- Department of Immunology, School of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Ghasem Saki
- Cellular and Molecular Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.,Physiology Research Center, School of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Saeedeh Shojaee
- Department of Medical Parasitology and Mycology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| |
Collapse
|
54
|
Abstract
Spermatogonial stem cells (SSCs) are essential for long-term spermatogenesis and are the subject of considerable clinical interest, as 'SSC therapy' has the potential to cure some forms of male infertility. Recently, we have learned more about SSCs and spermatogenesis in general from a plethora of studies that performed single-cell RNA sequencing (scRNAseq) analysis on dissociated cells from human, macaque, and/or mice testes. Here, we discuss what scRNAseq analysis has revealed about SSC precursor cells, the initial generation of SSCs during perinatal development, and their heterogeneity once established. scRNAseq studies have also uncovered unexpected heterogeneity of the larger class of cells that includes SSCs - undifferentiated spermatogonia. This raises the controversial possibility that multiple SSC subsets exist, which has implications for mechanisms underlying spermatogenesis and future SSC therapeutic approaches.
Collapse
Affiliation(s)
- Kun Tan
- Department of Obstetrics, Gynecology, and Reproductive Sciences, University of California, San Diego, La Jolla, CA, 92093, USA
| | - Miles F Wilkinson
- Department of Obstetrics, Gynecology, and Reproductive Sciences, University of California, San Diego, La Jolla, CA, 92093, USA; Institute of Genomic Medicine, University of California, San Diego, La Jolla, CA, 92093, USA.
| |
Collapse
|
55
|
Yan RG, Li BY, Yang QE. Function and transcriptomic dynamics of Sertoli cells during pro spermatogonia development in mouse testis. Reprod Biol 2020; 20:525-535. [PMID: 32952085 DOI: 10.1016/j.repbio.2020.09.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Revised: 09/02/2020] [Accepted: 09/05/2020] [Indexed: 10/23/2022]
Abstract
In mammals, spermatogonial stem cells (SSCs) arise from a subpopulation of prospermatogonia during neonatal testis development. Currently, molecular mechanisms directing the prospermatogonia to spermatogonial transition are not well understood. In the study, we found that reducing Sertoli cells number by Amh-cre mediated expression of diphtheria toxin (AC;DTA) in murine fetal testis caused defects in prospermatogonia fate decisions. Histological and immunohistochemical analyses confirmed that Sertoli cells loss occurred at embryonic day (E) 14.5. Prospermatogonia maintained mitotic arrest at E16.5 in control animals, in contrast, 13.4% of germ cells in AC;DTA testis reentered cell cycle and expressed gH2A.X and Sycp3, indicating the commitment to meiosis. After birth, the number of prospermatogonia resuming mitosis was significantly affected by Sertoli cell loss in AC;DTA animals. Lastly, we isolated primary Sertoli cells using a Sertoli cell specific GFP reporter line and showed dynamics of Sertoli cell transcriptomes at E12.5, E13.5, E16.5 and P1. By further analysis, we revealed unique gene expression patterns and potential candidate genes regulating Sertoli cell development and likely mediating interactions between Sertoli cells, prospermatogonia and other testicular cells.
Collapse
Affiliation(s)
- Rong-Ge Yan
- Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, QH, 810001, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Bin-Ye Li
- Center for Reproductive Medicine, Qinghai Provincial People's Hospital, Xining, QH, 81001, China
| | - Qi-En Yang
- Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, QH, 810001, China; University of Chinese Academy of Sciences, Beijing, 100049, China; Qinghai Provincial Key Laboratory of Animal Ecological Genomics, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, QH, 810001, China.
| |
Collapse
|
56
|
Fietz D, Pilatz A, Diemer T, Wagenlehner F, Bergmann M, Schuppe HC. Excessive unilateral proliferation of spermatogonia in a patient with non-obstructive azoospermia - adverse effect of clomiphene citrate pre-treatment? Basic Clin Androl 2020; 30:13. [PMID: 32884817 PMCID: PMC7461256 DOI: 10.1186/s12610-020-00111-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Accepted: 07/19/2020] [Indexed: 01/14/2023] Open
Abstract
Background Clomiphene citrate has been proposed as pre-treatment for infertile men with non-obstructive, testicular azoospermia (NOA) before surgery for testicular sperm extraction (TESE), especially when serum testosterone is low. Case presentation Here, we report on a 33-year old azoospermic patient with a previous history of repeated "fresh" TESE and clomiphene citrate therapy (50 mg/day over 6 months) before undergoing microscopically assisted, bilateral testicular biopsy. Comprehensive histological and immunohistochemical work-up revealed a heterogeneous spermatogenic arrest at the level of spermatogonia or primary spermatocytes, with focally preserved spermatogenesis up to elongated spermatids in the right testis. In the left testis, the majority of tubules (> 70%) showed no tubular lumen or regular seminiferous epithelium but a great number of spermatogonia-like cells. These cells proved to be normally differentiated spermatogonia (positive for melanoma associated antigen 4 (MAGEA4), negative for placental alkaline phosphatase (PlAP)) with increased proliferative activity (positive for proliferating cell nuclear antigen (PCNA)) and a slightly higher rate of apoptotic cells. When compared to a tissue control with normal spermatogenesis, expression of sex hormone receptors androgen receptor (AR), estrogen receptor (ER) alpha, and G-protein coupled estrogen receptor 1 (GPER1) was not altered in patient samples. Sertoli cells appeared to be mature (positive for vimentin, negative for cytokeratin 18), whereas the expression of zona occludens protein 1 (ZO-1), claudin 11, and connexin 43 was absent or dislocated in the tubules with abundance of spermatogonia. Conclusion This result suggests that formation of the blood-testis barrier is disturbed in affected tubules. To our knowledge this is the first observation of excessive, non-malignant proliferation of spermatogonia in a NOA patient. Although underlying molecular mechanisms remain to be elucidated, we hypothesize that the unusual pathology was triggered by the high-dose clomiphene citrate treatment preceding testicular biopsy.
Collapse
Affiliation(s)
- Daniela Fietz
- Institute for Veterinary Anatomy, Histology and Embryology, Justus Liebig University Giessen, Frankfurter Straße 98, 35392 Giessen, Germany.,Hessian Centre of Reproductive Medicine, Justus Liebig University Giessen, 35392 Giessen, Germany
| | - Adrian Pilatz
- Hessian Centre of Reproductive Medicine, Justus Liebig University Giessen, 35392 Giessen, Germany.,Department of Urology, Pediatric Urology and Andrology, Justus Liebig University Giessen, 35392 Giessen, Germany
| | - Thorsten Diemer
- Hessian Centre of Reproductive Medicine, Justus Liebig University Giessen, 35392 Giessen, Germany.,Department of Urology, Pediatric Urology and Andrology, Justus Liebig University Giessen, 35392 Giessen, Germany
| | - Florian Wagenlehner
- Hessian Centre of Reproductive Medicine, Justus Liebig University Giessen, 35392 Giessen, Germany.,Department of Urology, Pediatric Urology and Andrology, Justus Liebig University Giessen, 35392 Giessen, Germany
| | - Martin Bergmann
- Institute for Veterinary Anatomy, Histology and Embryology, Justus Liebig University Giessen, Frankfurter Straße 98, 35392 Giessen, Germany
| | - Hans-Christian Schuppe
- Hessian Centre of Reproductive Medicine, Justus Liebig University Giessen, 35392 Giessen, Germany.,Department of Urology, Pediatric Urology and Andrology, Justus Liebig University Giessen, 35392 Giessen, Germany
| |
Collapse
|
57
|
Ye H, Takeuchi Y, Wu M, Yue H, Ruan R, Du H, Zhou C, Xiang H, Li C, Wei Q. Assessment of Yangtze sturgeon as recipient for the production of American paddlefish gametes through spermatogonia transplantation. Theriogenology 2020; 158:168-179. [PMID: 32961352 DOI: 10.1016/j.theriogenology.2020.08.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 07/28/2020] [Accepted: 08/08/2020] [Indexed: 11/28/2022]
Abstract
The Chinese paddlefish (Psephurus gladius), one of the world's largest freshwater fish, was last seen alive in 2003; they are presumed now to be extinct. In fish, germ cell transplantation is currently known as one of the most powerful assisted reproductive technologies for the conservation of endangered species. In the event that a Chinese paddlefish is unexpectedly caught in the near future, we aimed to develop an experimental strategy to produce paddlefish gametes in the gonads of surrogate sturgeon. Spermatogonia were collected from the testes of 2.5-year-old immature male American paddlefish (Polyodon spathula), the species most closely related to the Chinese paddlefish, by Percoll gradient centrifugation, and transplanted into the peritoneal cavity of Yangtze sturgeon (Acipenser dabryanus) larvae at 7-8 days post-hatch. At two months post-transplantation, donor-derived spermatogonia had efficiently colonized in the recipient gonads and proliferated. A PCR analysis developed to detect xenogenic donor-derived mtDNA sequences in recipient gonads revealed that American paddlefish germ cells survived for at least seven months after transplantation in the gonads of Yangtze sturgeon recipients. These results show that the somatic microenvironment of Yangtze sturgeon gonads was able to support the colonization, proliferation, and survival of xenogeneic germ cells from a different taxonomic family. This study provides key information that could lead to future restoration of Chinese paddlefish using germ cell transplantation.
Collapse
Affiliation(s)
- Huan Ye
- Key Laboratory of Freshwater Biodiversity Conservation, Ministry of Agriculture and Rural Affairs, Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan, 430223, China
| | - Yutaka Takeuchi
- Noto Center for Fisheries Science and Technology, Faculty of Biological Science and Technology, Kanazawa University, Ishikawa, 927-0552, Japan
| | - Mengbin Wu
- Key Laboratory of Freshwater Biodiversity Conservation, Ministry of Agriculture and Rural Affairs, Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan, 430223, China
| | - Huamei Yue
- Key Laboratory of Freshwater Biodiversity Conservation, Ministry of Agriculture and Rural Affairs, Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan, 430223, China
| | - Rui Ruan
- Key Laboratory of Freshwater Biodiversity Conservation, Ministry of Agriculture and Rural Affairs, Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan, 430223, China
| | - Hao Du
- Key Laboratory of Freshwater Biodiversity Conservation, Ministry of Agriculture and Rural Affairs, Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan, 430223, China
| | - Congli Zhou
- Key Laboratory of Freshwater Biodiversity Conservation, Ministry of Agriculture and Rural Affairs, Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan, 430223, China
| | - Hao Xiang
- Key Laboratory of Freshwater Biodiversity Conservation, Ministry of Agriculture and Rural Affairs, Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan, 430223, China
| | - Chuangju Li
- Key Laboratory of Freshwater Biodiversity Conservation, Ministry of Agriculture and Rural Affairs, Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan, 430223, China.
| | - Qiwei Wei
- Key Laboratory of Freshwater Biodiversity Conservation, Ministry of Agriculture and Rural Affairs, Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan, 430223, China.
| |
Collapse
|
58
|
Senoo M, Hozoji H, Ishikawa-Yamauchi Y, Takijiri T, Ohta S, Ukai T, Kabata M, Yamamoto T, Yamada Y, Ikawa M, Ozawa M. RNA-binding protein Ptbp1 regulates alternative splicing and transcriptome in spermatogonia and maintains spermatogenesis in concert with Nanos3. J Reprod Dev 2020; 66:459-467. [PMID: 32624547 PMCID: PMC7593632 DOI: 10.1262/jrd.2020-060] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
PTBP1, a well-conserved RNA-binding protein, regulates cellular development by tuning posttranscriptional mRNA modification such as alternative splicing (AS)
or mRNA stabilization. We previously revealed that the loss of Ptbp1 in spermatogonia causes the dysregulation of spermatogenesis, but the
molecular mechanisms by which PTBP1 regulates spermatogonium homeostasis are unclear. In this study, changes of AS or transcriptome in
Ptbp1-knockout (KO) germline stem cells (GSC), an in vitro model of proliferating spermatogonia, was determined by next
generation sequencing. We identified more than 200 differentially expressed genes, as well as 85 genes with altered AS due to the loss of PTBP1. Surprisingly,
no differentially expressed genes overlapped with different AS genes in Ptbp1-KO GSC. In addition, we observed that the mRNA expression of
Nanos3, an essential gene for normal spermatogenesis, was significantly decreased in Ptbp1-KO spermatogonia. We also
revealed that PTBP1 protein binds to Nanos3 mRNA in spermatogonia. Furthermore,
Nanos3+/−;Ptbp1+/− mice exhibited abnormal spermatogenesis, which resembled the effects of germ
cell-specific Ptbp1 KO, whereas no significant abnormality was observed in mice heterozygous for either gene alone. These data implied that
PTBP1 regulates alternative splicing and transcriptome in spermatogonia under different molecular pathways, and contributes spermatogenesis, at least in part,
in concert with NANOS3.
Collapse
Affiliation(s)
- Manami Senoo
- Laboratory of Reproductive Systems Biology, Center for Experimental Medicine and Systems Biology, The Institute of Medical Science, The University of Tokyo, Tokyo 108-8639, Japan.,Graduate School of Frontier Sciences, The University of Tokyo, Tokyo 108-8639, Japan
| | - Hiroshi Hozoji
- Laboratory of Reproductive Systems Biology, Center for Experimental Medicine and Systems Biology, The Institute of Medical Science, The University of Tokyo, Tokyo 108-8639, Japan.,Graduate School of Frontier Sciences, The University of Tokyo, Tokyo 108-8639, Japan
| | - Yu Ishikawa-Yamauchi
- Laboratory of Reproductive Systems Biology, Center for Experimental Medicine and Systems Biology, The Institute of Medical Science, The University of Tokyo, Tokyo 108-8639, Japan
| | - Takashi Takijiri
- Laboratory of Reproductive Systems Biology, Center for Experimental Medicine and Systems Biology, The Institute of Medical Science, The University of Tokyo, Tokyo 108-8639, Japan.,Graduate School of Frontier Sciences, The University of Tokyo, Tokyo 108-8639, Japan
| | - Sho Ohta
- Division of Stem Cell Pathology, Center for Experimental Medicine and Systems Biology, Institute of Medical Science, University of Tokyo, Tokyo 108-8639, Japan
| | - Tomoyo Ukai
- Division of Stem Cell Pathology, Center for Experimental Medicine and Systems Biology, Institute of Medical Science, University of Tokyo, Tokyo 108-8639, Japan
| | - Mio Kabata
- Department of Life Science Frontiers, Center for iPS Cell Research and Application (CiRA), Kyoto University, Kyoto 606-8507, Japan
| | - Takuya Yamamoto
- Department of Life Science Frontiers, Center for iPS Cell Research and Application (CiRA), Kyoto University, Kyoto 606-8507, Japan.,Institute for the Advanced Study of Human Biology (WPI-ASHBi), Kyoto University, Kyoto 606-8501, Japan.,AMED-CREST, Tokyo 100-0004, Japan.,Medical-risk Avoidance based on iPS Cells Team, RIKEN Center for Advanced Intelligence Project (AIP), Kyoto 606-8507, Japan
| | - Yasuhiro Yamada
- Division of Stem Cell Pathology, Center for Experimental Medicine and Systems Biology, Institute of Medical Science, University of Tokyo, Tokyo 108-8639, Japan
| | - Masahito Ikawa
- Laboratory of Reproductive Systems Biology, Center for Experimental Medicine and Systems Biology, The Institute of Medical Science, The University of Tokyo, Tokyo 108-8639, Japan.,Research Institute for Microbial Diseases, Osaka University, Osaka 565-0871, Japan
| | - Manabu Ozawa
- Laboratory of Reproductive Systems Biology, Center for Experimental Medicine and Systems Biology, The Institute of Medical Science, The University of Tokyo, Tokyo 108-8639, Japan
| |
Collapse
|
59
|
Duangkaew R, Kezuka F, Ichida K, Boonanuntanasarn S, Yoshizaki G. Aging- and temperature-related activity of spermatogonial stem cells for germ cell transplantation in medaka. Theriogenology 2020; 155:213-221. [PMID: 32726705 DOI: 10.1016/j.theriogenology.2020.05.049] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2019] [Revised: 05/29/2020] [Accepted: 05/31/2020] [Indexed: 01/15/2023]
Abstract
Spermatogonial transplantation can contribute to developing a novel method of producing seedlings for both aquaculture and biotic conservation. This study's purpose was to investigate aging- and temperature-related changes in the numbers and stem cell functions of type-A spermatogonia (ASG) in the model fish medaka (Oryzias latipes). The ASG numbers in medaka of different ages were quantified via histological observation and enzymatic dissociation of vasa-Gfp medaka testes. The ASG numbers were higher in eight-month-old medaka (maturation) than in four-month-old medaka (the onset of maturation). However, ASG numbers decreased in 18-month-old medaka (senescence). Low water temperature appeared to slow down both testis development and aging processes. To study the effects of aging on ASG stem cell activity, testicular cell suspensions containing GFP-expressed ASG were prepared from vasa-Gfp medaka donors at 4 and 18 months of age and transplanted into recipient hybrid larvae of medaka (O. latipes x O. curvinotus), which provided young stem-cell-niches. The findings revealed no significant differences in ASG colonization rates isolated from medaka of different ages. Each group displayed similar rates of germ-line transmission. Furthermore, water temperature had no significant effects on each ASG's stem cell activity. Taken together, these results indicated that aging and temperature affect ASG numbers. However, ASG isolated from medaka with different ages were transplanted into gonads with a young niche microenvironment, and there was no evidence of donor aging on stem cell activity.
Collapse
Affiliation(s)
- Rungsun Duangkaew
- School of Animal Production Technology, Institute of Agricultural Technology, Suranaree University of Technology, 111 University Avenue, Muang, Nakhon Ratchasima, 30000, Thailand
| | - Fumi Kezuka
- Department of Marine Biosciences, Tokyo University of Marine Science and Technology, Minato-Ku, Tokyo, 108-8477, Japan
| | - Kensuke Ichida
- Department of Marine Biosciences, Tokyo University of Marine Science and Technology, Minato-Ku, Tokyo, 108-8477, Japan
| | - Surintorn Boonanuntanasarn
- School of Animal Production Technology, Institute of Agricultural Technology, Suranaree University of Technology, 111 University Avenue, Muang, Nakhon Ratchasima, 30000, Thailand.
| | - Goro Yoshizaki
- Department of Marine Biosciences, Tokyo University of Marine Science and Technology, Minato-Ku, Tokyo, 108-8477, Japan
| |
Collapse
|
60
|
Du G, Wang X, Luo M, Xu W, Zhou T, Wang M, Yu L, Li L, Cai L, Wang PJ, Zhong Li J, Oatley JM, Wu X. mRBPome capture identifies the RNA-binding protein TRIM71, an essential regulator of spermatogonial differentiation. Development 2020; 147:dev184655. [PMID: 32188631 PMCID: PMC10679512 DOI: 10.1242/dev.184655] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2019] [Accepted: 02/23/2020] [Indexed: 12/15/2022]
Abstract
Continual spermatogenesis relies on the actions of an undifferentiated spermatogonial population that is composed of stem cells and progenitors. Here, using mouse models, we explored the role of RNA-binding proteins (RBPs) in regulation of the biological activities of this population. Proteins bound to polyadenylated RNAs in primary cultures of undifferentiated spermatogonia were captured with oligo (dT)-conjugated beads after UV-crosslinking and profiled by proteomics (termed mRBPome capture), yielding a putative repertoire of 473 RBPs. From this database, the RBP TRIM71 was identified and found to be expressed by stem and progenitor spermatogonia in prepubertal and adult mouse testes. Tissue-specific deletion of TRIM71 in the male germline led to reduction of the undifferentiated spermatogonial population and a block in transition to the differentiating state. Collectively, these findings demonstrate a key role of the RBP system in regulation of the spermatogenic lineage and may provide clues about the influence of RBPs on the biology of progenitor cell populations in other lineages.
Collapse
Affiliation(s)
- Guihua Du
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, Jiangsu 211166, China
- Center for Reproductive Biology, School of Molecular Biosciences, College of Veterinary Medicine, Washington State University, Pullman, WA 99164, USA
| | - Xinrui Wang
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, Jiangsu 211166, China
- Key Laboratory of Rare Metabolic Diseases & Jiangsu Province Key Laboratory of Human Functional Genomics, Department of Biochemistry and Molecular Biology, Nanjing Medical University, Nanjing 211166, China
| | - Mengcheng Luo
- Department of Tissue and Embryology, School of Basic Medical Sciences, Wuhan University, and Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan 430071, China
- Department of Biomedical Sciences, University of Pennsylvania School of Veterinary Medicine, Philadelphia, PA 19104, USA
| | - Weiya Xu
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, Jiangsu 211166, China
| | - Tao Zhou
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, Jiangsu 211166, China
| | - Mei Wang
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, Jiangsu 211166, China
| | - Luping Yu
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, Jiangsu 211166, China
| | - Lufan Li
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, Jiangsu 211166, China
| | - Li'e Cai
- Key Laboratory of Rare Metabolic Diseases & Jiangsu Province Key Laboratory of Human Functional Genomics, Department of Biochemistry and Molecular Biology, Nanjing Medical University, Nanjing 211166, China
| | - P Jeremy Wang
- Department of Biomedical Sciences, University of Pennsylvania School of Veterinary Medicine, Philadelphia, PA 19104, USA
| | - John Zhong Li
- Key Laboratory of Rare Metabolic Diseases & Jiangsu Province Key Laboratory of Human Functional Genomics, Department of Biochemistry and Molecular Biology, Nanjing Medical University, Nanjing 211166, China
| | - Jon M Oatley
- Center for Reproductive Biology, School of Molecular Biosciences, College of Veterinary Medicine, Washington State University, Pullman, WA 99164, USA
| | - Xin Wu
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, Jiangsu 211166, China
| |
Collapse
|
61
|
Chen Z, Li X, Jin J, Zhou W, Chen J, Fok KL. Connective tissue growth factor mediates mouse spermatogonial migration associated with differentiation. Biochim Biophys Acta Mol Cell Res 2020; 1867:118708. [PMID: 32240712 DOI: 10.1016/j.bbamcr.2020.118708] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2019] [Revised: 02/26/2020] [Accepted: 03/24/2020] [Indexed: 10/24/2022]
Abstract
Spermatogonia migrate to the microenvironment during the establishment from gonocytes and leave it when they differentiate. However, the mechanisms underlying the regulation of spermatogonial differentiation-associated migration remain mostly unknown. In this study, we show that spermatogonial differentiation induced by retinoic acid (RA) was accompanied with increased migration ability and elevated expression of connective tissue growth factor (CTGF), a member of the CCN family. CTGF was mainly expressed in the testicular somatic cells and committed spermatogonial progenitors. Recombinant CTGF (rCTGF) promoted the spermatogonial migration and silencing of endogenous CTGF suppressed the migration of homogenous spermatogonial cell lines. Moreover, depletion of CTGF by neutralizing antibody inhibited the elevated migration ability induced by RA, suggesting both the paracrine and autocrine roles of CTGF in spermatogonial migration associated with differentiation. Finally, CTGF interacted with β1-integrin and regulated its level in spermatogonial cell lines. Together, our study provides novel insights into the regulation of spermatogonial migration by CTGF, which may shed light on the diagnosis and treatment of male infertility.
Collapse
Affiliation(s)
- Ziyi Chen
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong Special Administrative Region
| | - Xiaofeng Li
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong Special Administrative Region
| | - Jing Jin
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong Special Administrative Region
| | - Wei Zhou
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong Special Administrative Region
| | - Junjiang Chen
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong Special Administrative Region
| | - Kin Lam Fok
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong Special Administrative Region; School of Biomedical Sciences Core Laboratory, Shenzhen Research Institute, The Chinese University of Hong Kong, Shenzhen, China.
| |
Collapse
|
62
|
Wahab F, Drummer C, Mätz-Rensing K, Fuchs E, Behr R. Irisin is expressed by undifferentiated spermatogonia and modulates gene expression in organotypic primate testis cultures. Mol Cell Endocrinol 2020; 504:110670. [PMID: 31801682 DOI: 10.1016/j.mce.2019.110670] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/28/2019] [Revised: 10/15/2019] [Accepted: 11/30/2019] [Indexed: 12/20/2022]
Abstract
The molecular mechanisms regulating undifferentiated spermatogonial cell proliferation and differentiation are still not fully understood. Irisin is an exercise-induced hormone, which is a cleaved and secreted fragment of the fibronectin type III repeat containing 5 (FNDC5) transmembrane protein. Recent studies have demonstrated the role of irisin in cell proliferation and differentiation in various tissues. However, testicular irisin expression and its potential action have not been analyzed. Here, we demonstrate expression of irisin in undifferentiated spermatogonia of primates and in the tree shrew, a bridging species between primates and insectivores. Rhesus monkeys are seasonal breeders with annual phases of high and low testicular activity and germ cell proliferation. Interestingly, expression of both FNDC5 mRNA and irisin is altered between breeding (high spermatogenesis) and nonbreeding seasons (low spermatogenesis). Organotypic testis culture in the presence of irisin increased the expression levels of the Sertoli cell (GDNF) and spermatogonial transcripts Kruppel-like factor 4 (KLF4), Inhibitor of differentiation 4 (ID4), Cluster of differentiation 117 (cKIT), and SALL4, compared to untreated controls, while irisin suppressed its own FNDC5 mRNA. Our data suggest that irisin is a novel endocrine factor involved in the regulation of spermatogonial activities in the testes of primates.
Collapse
Affiliation(s)
- Fazal Wahab
- Platform Degenerative Diseases, Kellnerweg 4, 37077, Göttingen, Germany.
| | - Charis Drummer
- Platform Degenerative Diseases, Kellnerweg 4, 37077, Göttingen, Germany
| | - Kerstin Mätz-Rensing
- Pathology Unit, German Primate Center- Leibniz-Institute for Primate Research, Kellnerweg 4, 37077, Göttingen, Germany
| | - Eberhard Fuchs
- Platform Degenerative Diseases, Kellnerweg 4, 37077, Göttingen, Germany
| | - Rüdiger Behr
- Platform Degenerative Diseases, Kellnerweg 4, 37077, Göttingen, Germany.
| |
Collapse
|
63
|
Safian D, Bogerd J, Schulz RW. Regulation of spermatogonial development by Fsh: The complementary roles of locally produced Igf and Wnt signaling molecules in adult zebrafish testis. Gen Comp Endocrinol 2019; 284:113244. [PMID: 31415728 DOI: 10.1016/j.ygcen.2019.113244] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Revised: 08/07/2019] [Accepted: 08/09/2019] [Indexed: 12/28/2022]
Abstract
Spermatogenesis is a cellular developmental process characterized by the coordinated proliferation and differentiation activities of somatic and germ cells in order to produce a large number of spermatozoa, the cellular basis of male fertility. Somatic cells in the testis, such as Leydig, peritubular myoid and Sertoli cells, provide structural and metabolic support and contribute to the regulatory microenvironment required for proper germ cell survival and development. The pituitary follicle-stimulating hormone (Fsh) is a major endocrine regulator of vertebrate spermatogenesis, targeting somatic cell functions in the testes. In fish, Fsh regulates Leydig and Sertoli cell functions, such as sex steroid and growth factor production, processes that also control the development of spermatogonia, the germ cell stages at the basis of the spermatogenic process. Here, we summarize recent advances in our understanding of mechanisms used by Fsh to regulate the development of spermatogonia. This involves discussing the roles of insulin-like growth factor (Igf) 3 and canonical and non-canonical Wnt signaling pathways. We will also discuss how these locally active regulatory systems interact to maintain testis tissue homeostasis.
Collapse
Affiliation(s)
- Diego Safian
- Reproductive Biology Group, Division Developmental Biology, Institute of Biodynamics and Biocomplexity, Department of Biology, Faculty of Science, University of Utrecht, 3584 CH Utrecht, The Netherlands
| | - Jan Bogerd
- Reproductive Biology Group, Division Developmental Biology, Institute of Biodynamics and Biocomplexity, Department of Biology, Faculty of Science, University of Utrecht, 3584 CH Utrecht, The Netherlands
| | - Rüdiger W Schulz
- Reproductive Biology Group, Division Developmental Biology, Institute of Biodynamics and Biocomplexity, Department of Biology, Faculty of Science, University of Utrecht, 3584 CH Utrecht, The Netherlands; Reproduction and Developmental Biology Group, Institute of Marine Research, P.O. Box 1870, Nordnes, 5817 Bergen, Norway.
| |
Collapse
|
64
|
Singh P, Patel RK, Palmer N, Grenier JK, Paduch D, Kaldis P, Grimson A, Schimenti JC. CDK2 kinase activity is a regulator of male germ cell fate. Development 2019; 146:dev180273. [PMID: 31582414 PMCID: PMC6857589 DOI: 10.1242/dev.180273] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2019] [Accepted: 09/21/2019] [Indexed: 12/27/2022]
Abstract
The ability of men to remain fertile throughout their lives depends upon establishment of a spermatogonial stem cell (SSC) pool from gonocyte progenitors, and thereafter balancing SSC renewal versus terminal differentiation. Here, we report that precise regulation of the cell cycle is crucial for this balance. Whereas cyclin-dependent kinase 2 (Cdk2) is not necessary for mouse viability or gametogenesis stages prior to meiotic prophase I, mice bearing a deregulated allele (Cdk2Y15S ) are severely deficient in spermatogonial differentiation. This allele disrupts an inhibitory phosphorylation site (Tyr15) for the kinase WEE1. Remarkably, Cdk2Y15S/Y15S mice possess abnormal clusters of mitotically active SSC-like cells, but these are eventually removed by apoptosis after failing to differentiate properly. Analyses of lineage markers, germ cell proliferation over time, and single cell RNA-seq data revealed delayed and defective differentiation of gonocytes into SSCs. Biochemical and genetic data demonstrated that Cdk2Y15S is a gain-of-function allele causing elevated kinase activity, which underlies these differentiation defects. Our results demonstrate that precise regulation of CDK2 kinase activity in male germ cell development is crucial for the gonocyte-to-spermatogonia transition and long-term spermatogenic homeostasis.
Collapse
Affiliation(s)
- Priti Singh
- Cornell University, College of Veterinary Medicine, Department of Biomedical Sciences, Ithaca, NY 14853, USA
| | - Ravi K Patel
- Cornell University, Department of Molecular Biology and Genetics, Ithaca, NY 14853, USA
| | - Nathan Palmer
- Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology, and Research (A*STAR), Singapore 138673
- Department of Biochemistry, National University of Singapore, Singapore 117599, Republic of Singapore
| | - Jennifer K Grenier
- Cornell University, College of Veterinary Medicine, Department of Biomedical Sciences, Ithaca, NY 14853, USA
| | - Darius Paduch
- Cornell University, Weill Cornell Medicine, Department of Urology, New York, NY 10065, USA
| | - Philipp Kaldis
- Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology, and Research (A*STAR), Singapore 138673
- Department of Biochemistry, National University of Singapore, Singapore 117599, Republic of Singapore
| | - Andrew Grimson
- Cornell University, Department of Molecular Biology and Genetics, Ithaca, NY 14853, USA
| | - John C Schimenti
- Cornell University, College of Veterinary Medicine, Department of Biomedical Sciences, Ithaca, NY 14853, USA
| |
Collapse
|
65
|
Laurentino S, Heckmann L, Di Persio S, Li X, Meyer Zu Hörste G, Wistuba J, Cremers JF, Gromoll J, Kliesch S, Schlatt S, Neuhaus N. High-resolution analysis of germ cells from men with sex chromosomal aneuploidies reveals normal transcriptome but impaired imprinting. Clin Epigenetics 2019; 11:127. [PMID: 31462300 PMCID: PMC6714305 DOI: 10.1186/s13148-019-0720-3] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2019] [Accepted: 08/02/2019] [Indexed: 12/18/2022] Open
Abstract
Background The most common sex chromosomal aneuploidy in males is Klinefelter syndrome, which is characterized by at least one supernumerary X chromosome. While these men have long been considered infertile, focal spermatogenesis can be observed in some patients, and sperm can be surgically retrieved and used for artificial reproductive techniques. Although these gametes can be used for fertility treatments, little is known about the molecular biology of the germline in Klinefelter men. Specifically, it is unclear if germ cells in Klinefelter syndrome correctly establish the androgenetic DNA methylation profile and transcriptome. This is due to the low number of germ cells in the Klinefelter testes available for analysis. Results Here, we overcame these difficulties and successfully investigated the epigenetic and transcriptional profiles of germ cells in Klinefelter patients employing deep bisulfite sequencing and single-cell RNA sequencing. On the transcriptional level, the germ cells from Klinefelter men clustered together with the differentiation stages of normal spermatogenesis. Klinefelter germ cells showed a normal DNA methylation profile of selected germ cell-specific markers compared with spermatogonia and sperm from men with normal spermatogenesis. However, germ cells from Klinefelter patients showed variations in the DNA methylation of imprinted regions. Conclusions These data indicate that Klinefelter germ cells have a normal transcriptome but might present aberrant imprinting, showing impairment in germ cell development that goes beyond mere germ cell loss. Electronic supplementary material The online version of this article (10.1186/s13148-019-0720-3) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Sandra Laurentino
- Centre of Reproductive Medicine and Andrology, University of Münster, Domagkstrasse 11, 48149, Münster, Germany
| | - Laura Heckmann
- Centre of Reproductive Medicine and Andrology, University of Münster, Domagkstrasse 11, 48149, Münster, Germany
| | - Sara Di Persio
- Centre of Reproductive Medicine and Andrology, University of Münster, Domagkstrasse 11, 48149, Münster, Germany
| | - Xiaolin Li
- Department of Neurology, Institute of Translational Neurology, University Hospital of Münster, Münster, Germany
| | - Gerd Meyer Zu Hörste
- Department of Neurology, Institute of Translational Neurology, University Hospital of Münster, Münster, Germany
| | - Joachim Wistuba
- Centre of Reproductive Medicine and Andrology, University of Münster, Domagkstrasse 11, 48149, Münster, Germany
| | - Jann-Frederik Cremers
- Centre of Reproductive Medicine and Andrology, Department of Clinical and Surgical Andrology, University of Münster, Münster, Germany
| | - Jörg Gromoll
- Centre of Reproductive Medicine and Andrology, University of Münster, Domagkstrasse 11, 48149, Münster, Germany
| | - Sabine Kliesch
- Centre of Reproductive Medicine and Andrology, Department of Clinical and Surgical Andrology, University of Münster, Münster, Germany
| | - Stefan Schlatt
- Centre of Reproductive Medicine and Andrology, University of Münster, Domagkstrasse 11, 48149, Münster, Germany
| | - Nina Neuhaus
- Centre of Reproductive Medicine and Andrology, University of Münster, Domagkstrasse 11, 48149, Münster, Germany.
| |
Collapse
|
66
|
Kamijo A, Saitoh Y, Sakamoto T, Kubota H, Yamauchi J, Terada N. Scaffold protein Lin7 family in membrane skeletal protein complex in mouse seminiferous tubules. Histochem Cell Biol 2019; 152:333-343. [PMID: 31410570 DOI: 10.1007/s00418-019-01807-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/02/2019] [Indexed: 01/22/2023]
Abstract
The membrane skeletal complex, protein 4.1G-membrane palmitoylated protein 6 (MPP6), is localized in spermatogonia and early spermatocytes of mouse seminiferous tubules. In this study, we investigated the Lin7 family of scaffolding proteins, which interact with MPP6. By immunohistochemistry, Lin7a and Lin7c were localized in germ cells, and Lin7c had especially strong staining in spermatogonia and early spermatocytes, characterized by staging of seminiferous tubules. By immunoelectron microscopy, Lin7 localization appeared under cell membranes in germ cells. The Lin7 staining pattern in seminiferous tubules was partially similar to that of 4.1G, cell adhesion molecule 1 (CADM1), and melanoma cell adhesion molecule (MCAM). Lin7-positive cells included type A spermatogonia, as revealed by double staining for Lin28a. Lin7 staining became weaker in MPP6-deficient mice by immunohistochemistry and western blotting, indicating that MPP6 transports and maintains Lin7 in germ cells. The histology of seminiferous tubules was unchanged in MPP6-deficient mice compared to that of wild-type mice. In cultured spermatogonial stem cells maintained with glial cell line-derived neurotropic factor (GDNF), Lin7 was clearly expressed and immunolocalized along cell membranes, especially at cell-cell junctions. Thus, Lin7 protein is expressed in germ cells, and Lin7, particularly Lin7c, is a useful marker for early spermatogenesis.
Collapse
Affiliation(s)
- Akio Kamijo
- Health Science Division, Department of Medical Sciences, Shinshu University Graduate School of Medicine, Science and Technology, 3-1-1 Asahi, Matsumoto City, Nagano, 390-8621, Japan
| | - Yurika Saitoh
- Health Science Division, Department of Medical Sciences, Shinshu University Graduate School of Medicine, Science and Technology, 3-1-1 Asahi, Matsumoto City, Nagano, 390-8621, Japan.,Center for Medical Education, Teikyo University of Science, Adachi-ku, Tokyo, Japan
| | - Takeharu Sakamoto
- Division of Cellular and Molecular Biology, The Institute of Medical Science, The University of Tokyo, Minato-ku, Tokyo, Japan
| | - Hiroshi Kubota
- Laboratory of Cell and Molecular Biology, Department of Animal Science, School of Veterinary Medicine, Kitasato University, Towada, Aomori, Japan
| | - Junji Yamauchi
- Laboratory of Molecular Neuroscience and Neurology, School of Life Sciences, Tokyo University of Pharmacy and Life Sciences, Hachioji City, Tokyo, Japan
| | - Nobuo Terada
- Health Science Division, Department of Medical Sciences, Shinshu University Graduate School of Medicine, Science and Technology, 3-1-1 Asahi, Matsumoto City, Nagano, 390-8621, Japan.
| |
Collapse
|
67
|
Wang G, Li Y, Yang Q, Xu S, Ma S, Yan R, Zhang R, Jia G, Ai D, Yang Q. Gene expression dynamics during the gonocyte to spermatogonia transition and spermatogenesis in the domestic yak. J Anim Sci Biotechnol 2019; 10:64. [PMID: 31338188 PMCID: PMC6624888 DOI: 10.1186/s40104-019-0360-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2018] [Accepted: 05/01/2019] [Indexed: 11/10/2022] Open
Abstract
Background Spermatogenesis is a cellular differentiation process that includes three major events: mitosis of spermatogonia, meiosis of spermatocytes and spermiogenesis. Steady-state spermatogenesis relies on functions of spermatogonial stem cells (SSCs). Establishing and maintaining a foundational SSC pool is essential for continued spermatogenesis in mammals. Currently, our knowledge about SSC and spermatogenesis is severely limited in domestic animals. Results In the present study, we examined transcriptomes of testes from domestic yaks at four different stages (3, 5, 8 and 24 months of age) and attempted to identify genes that are associated with key developmental events of spermatogenesis. Histological analyses showed that the most advanced germ cells within seminiferous tubules of testes from 3, 5, 8 and 24 months old yaks were gonocytes, spermatogonia, spermatocytes and elongated spermatids, respectively. RNA-sequencing (RNA-seq) analyses revealed that 11904, 4381 and 2459 genes were differentially expressed during the gonocyte to spermatogonia transition, the mitosis to meiosis transition and the meiosis to post-meiosis transition. Further analyses identified a list of candidate genes than may regulate these important cellular processes. CXCR4, a previously identified SSC niche factor in mouse, was one of the up-regulated genes in the 5 months old yak testis. Results of immunohistochemical staining confirmed that CXCR4 was exclusively expressed in gonocytes and a subpopulation of spermatogonia in the yak testis. Conclusions Together, these findings demonstrated histological changes of postnatal testis development in the domestic yak. During development of spermatogonial lineage, meiotic and haploid germ cells are supported by dynamic transcriptional regulation of gene expression. Our transcriptomic analyses provided a list of candidate genes that potentially play crucial roles in directing the establishment of SSC and spermatogenesis in yak. Electronic supplementary material The online version of this article (10.1186/s40104-019-0360-7) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Guowen Wang
- 1Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, 810000 Qinghai China.,2University of Chinese Academy of Sciences, Beijing, 100049 China
| | - Yongchang Li
- 1Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, 810000 Qinghai China.,2University of Chinese Academy of Sciences, Beijing, 100049 China
| | - Qilin Yang
- 3Department of Veterinary Sciences, Qinghai Vocational and Technical Institute of Animal Husbandry and Veterinary, Qinghai University, Xining, 810016 China
| | - Shangrong Xu
- 4Qinghai Academy of Animal Science and Veterinary Medicine, Qinghai University, Xining, 810016 China
| | - Shike Ma
- 4Qinghai Academy of Animal Science and Veterinary Medicine, Qinghai University, Xining, 810016 China
| | - Rongge Yan
- 1Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, 810000 Qinghai China.,2University of Chinese Academy of Sciences, Beijing, 100049 China
| | - Ruina Zhang
- 1Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, 810000 Qinghai China
| | - Gongxue Jia
- 1Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, 810000 Qinghai China
| | - Deqiang Ai
- Animal Husbandry Technology Extension Station of Qinghai Province, Xining, 810001 Qinghai China
| | - Qi'en Yang
- 1Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, 810000 Qinghai China.,6Qinghai Key Laboratory of Animal Ecological Genomics, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, 810001 Qinghai China.,7CAS Center for Excellence in Tibetan Plateau Earth Sciences, Chinese Academy of Sciences, Beijing, 100101 China
| |
Collapse
|
68
|
Fu K, Tian S, Tan H, Wang C, Wang H, Wang M, Wang Y, Chen Z, Wang Y, Yue Q, Xu Q, Zhang S, Li H, Xie J, Lin M, Luo M, Chen F, Ye L, Zheng K. Biological and RNA regulatory function of MOV10 in mammalian germ cells. BMC Biol 2019; 17:39. [PMID: 31088452 PMCID: PMC6515687 DOI: 10.1186/s12915-019-0659-z] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2019] [Accepted: 04/30/2019] [Indexed: 02/07/2023] Open
Abstract
Background RNA regulation by RNA-binding proteins (RBPs) involve extremely complicated mechanisms. MOV10 and MOV10L1 are two homologous RNA helicases implicated in distinct intracellular pathways. MOV10L1 participates specifically in Piwi-interacting RNA (piRNA) biogenesis and protects mouse male fertility. In contrast, the functional complexity of MOV10 remains incompletely understood, and its role in the mammalian germline is unknown. Here, we report a study of the biological and molecular functions of the RNA helicase MOV10 in mammalian male germ cells. Results MOV10 is a nucleocytoplasmic protein mainly expressed in spermatogonia. Knockdown and transplantation experiments show that MOV10 deficiency has a negative effect on spermatogonial progenitor cells (SPCs), limiting proliferation and in vivo repopulation capacity. This effect is concurrent with a global disturbance of RNA homeostasis and downregulation of factors critical for SPC proliferation and/or self-renewal. Unexpectedly, microRNA (miRNA) biogenesis is impaired due partially to decrease of miRNA primary transcript levels and/or retention of miRNA via splicing control. Genome-wide analysis of RNA targetome reveals that MOV10 binds preferentially to mRNAs with long 3′-UTR and also interacts with various non-coding RNA species including those in the nucleus. Intriguingly, nuclear MOV10 associates with an array of splicing factors, particularly with SRSF1, and its intronic binding sites tend to reside in proximity to splice sites. Conclusions These data expand the landscape of MOV10 function and highlight a previously unidentified role initiated from the nucleus, suggesting that MOV10 is a versatile RBP involved in a broader RNA regulatory network. Electronic supplementary material The online version of this article (10.1186/s12915-019-0659-z) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Kaiqiang Fu
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, 211166, China
| | - Suwen Tian
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, 211166, China.,Department of Preventive Medicine, Heze Medical College, Heze, 274000, China
| | - Huanhuan Tan
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, 211166, China
| | - Caifeng Wang
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, 211166, China
| | - Hanben Wang
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, 211166, China
| | - Min Wang
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, 211166, China
| | - Yuanyuan Wang
- School of Basic Medical Sciences, Nanjing Medical University, Nanjing, 211166, China
| | - Zhen Chen
- School of Basic Medical Sciences, Wuhan University, Wuhan, 430072, China
| | - Yanfeng Wang
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, 211166, China
| | - Qiuling Yue
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, 211166, China
| | - Qiushi Xu
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, 211166, China
| | - Shuya Zhang
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, 211166, China
| | - Haixin Li
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, 211166, China
| | - Jie Xie
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, 211166, China
| | - Mingyan Lin
- School of Basic Medical Sciences, Nanjing Medical University, Nanjing, 211166, China
| | - Mengcheng Luo
- School of Basic Medical Sciences, Wuhan University, Wuhan, 430072, China
| | - Feng Chen
- Department of Forensic Medicine, Nanjing Medical University, Nanjing, 211166, China
| | - Lan Ye
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, 211166, China
| | - Ke Zheng
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, 211166, China.
| |
Collapse
|
69
|
Velte EK, Niedenberger BA, Serra ND, Singh A, Roa-DeLaCruz L, Hermann BP, Geyer CB. Differential RA responsiveness directs formation of functionally distinct spermatogonial populations at the initiation of spermatogenesis in the mouse. Development 2019; 146:dev.173088. [PMID: 31023878 DOI: 10.1242/dev.173088] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2018] [Accepted: 04/16/2019] [Indexed: 12/22/2022]
Abstract
In the mammalian testis, sustained spermatogenesis relies on spermatogonial stem cells (SSCs); their progeny either remain as stem cells (self-renewal) or proliferate and differentiate to enter meiosis in response to retinoic acid (RA). Here, we sought to uncover elusive mechanisms regulating a key switch fundamental to spermatogonial fate: the capacity of spermatogonia to respond to RA. Using the developing mouse testis as a model, we found that spermatogonia and precursor prospermatogonia exhibit a heterogeneous capacity to respond to RA with at least two underlying causes. First, progenitor spermatogonia are prevented from responding to RA by catabolic activity of cytochrome P450 family 26 enzymes. Second, a smaller subset of undifferentiated spermatogonia enriched for SSCs exhibit catabolism-independent RA insensitivity. Moreover, for the first time, we observed that precursor prospermatogonia are heterogeneous and comprise subpopulations that exhibit the same differential RA responsiveness found in neonatal spermatogonia. We propose a novel model by which mammalian prospermatogonial and spermatogonial fates are regulated by their intrinsic capacity to respond (or not) to the differentiation signal provided by RA before, and concurrent with, the initiation of spermatogenesis.
Collapse
Affiliation(s)
- Ellen K Velte
- Departments of Anatomy and Cell Biology, Brody School of Medicine, East Carolina Diabetes and Obesity Institute, East Carolina University, Greenville, NC 27834, USA
| | - Bryan A Niedenberger
- Departments of Anatomy and Cell Biology, Brody School of Medicine, East Carolina Diabetes and Obesity Institute, East Carolina University, Greenville, NC 27834, USA
| | - Nicholas D Serra
- Departments of Anatomy and Cell Biology, Brody School of Medicine, East Carolina Diabetes and Obesity Institute, East Carolina University, Greenville, NC 27834, USA
| | - Anukriti Singh
- Department of Biology, University of Texas at San Antonio, San Antonio, TX 78249, USA
| | - Lorena Roa-DeLaCruz
- Department of Biology, University of Texas at San Antonio, San Antonio, TX 78249, USA
| | - Brian P Hermann
- Department of Biology, University of Texas at San Antonio, San Antonio, TX 78249, USA
| | - Christopher B Geyer
- Departments of Anatomy and Cell Biology, Brody School of Medicine, East Carolina Diabetes and Obesity Institute, East Carolina University, Greenville, NC 27834, USA .,East Carolina Diabetes and Obesity Institute, East Carolina University, Greenville, NC 27834, USA
| |
Collapse
|
70
|
Rahman MM, Wie J, Cho JH, Tae HJ, Ahn D, Lee SW, Kim IS, Park BY. Diethylstilbestrol induces morphological changes in the spermatogonia, Sertoli cells and Leydig cells of adult rat. Res Vet Sci 2019; 124:433-8. [PMID: 31082573 DOI: 10.1016/j.rvsc.2019.04.015] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2018] [Revised: 03/28/2019] [Accepted: 04/22/2019] [Indexed: 11/22/2022]
Abstract
It is now established that diethylstilbestrol (DES) has damaging effects on the male reproductive system. However, to date there have been no studies morphological analysis of adult rat testes upon treatment with DES. Here, we examined whether DES has any significant morphological effect on steroidogenesis and spermatogenesis. DES was injected subcutaneously at 3 μg/day and 30 μg/day in adult male Sprague-Dawley (SD) rats for two different treatment lengths (1 or 3 weeks), after which rats were necropsied. TUNEL labeling, cell counting, and morphological analysis were used to evaluate the effects of DES. A high dose of DES and longer exposure severely affected the cellular development of the testis. Specifically, DES treatment disrupted both steroidogenesis and spermatogenesis by decreasing the number of spermatogonia, Sertoli cells, and Leydig cells in a dose- and time-dependent manner. Thus, DES may account for decreases in the number of spermatogenic cells, Sertoli cells and Leydig cells, which in turn may lead to reduced fertility in males.
Collapse
|
71
|
Ye D, Zhu L, Zhang Q, Xiong F, Wang H, Wang X, He M, Zhu Z, Sun Y. Abundance of Early Embryonic Primordial Germ Cells Promotes Zebrafish Female Differentiation as Revealed by Lifetime Labeling of Germline. Mar Biotechnol (NY) 2019; 21:217-228. [PMID: 30671659 PMCID: PMC6441407 DOI: 10.1007/s10126-019-09874-1] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2018] [Accepted: 01/07/2019] [Indexed: 05/30/2023]
Abstract
Teleost sex differentiation largely depends on the number of undifferentiated germ cells. Here, we describe the generation and characterization of a novel transgenic zebrafish line, Tg(piwil1:egfp-UTRnanos3)ihb327Tg, which specifically labels the whole lifetime of germ cells, i.e., from primordial germ cells (PGCs) at shield stage to the oogonia and early stage of oocytes in the ovary and to the early stage of spermatogonia, spermatocyte, and spermatid in the testis. By using this transgenic line, we carefully observed the numbers of PGCs from early embryonic stage to juvenile stage and the differentiation process of ovary and testis. The numbers of PGCs became variable at as early as 1 day post-fertilization (dpf). Interestingly, the embryos with a high amount of PGCs mainly developed into females and the ones with a low amount of PGCs mainly developed into males. By using transient overexpression and transgenic induction of PGC-specific bucky ball (buc), we further proved that induction of abundant PGCs at embryonic stage promoted later ovary differentiation and female development. Taken together, we generate an ideal transgenic line Tg(piwil1:egfp-UTRnanos3)ihb327Tg which can visualize zebrafish germline for a lifetime, and we have utilized this line to study germ cell development and gonad differentiation of teleost and to demonstrate that the increase of PGC number at embryonic stage promotes female differentiation.
Collapse
Affiliation(s)
- Ding Ye
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, The Innovative Academy of Seed Design, Chinese Academy of Sciences, Wuhan, 430072, China
- College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Lin Zhu
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, The Innovative Academy of Seed Design, Chinese Academy of Sciences, Wuhan, 430072, China
- College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Qifeng Zhang
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, The Innovative Academy of Seed Design, Chinese Academy of Sciences, Wuhan, 430072, China
- College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Feng Xiong
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, The Innovative Academy of Seed Design, Chinese Academy of Sciences, Wuhan, 430072, China
| | - Houpeng Wang
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, The Innovative Academy of Seed Design, Chinese Academy of Sciences, Wuhan, 430072, China
| | - Xiaosi Wang
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, The Innovative Academy of Seed Design, Chinese Academy of Sciences, Wuhan, 430072, China
- College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Mudan He
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, The Innovative Academy of Seed Design, Chinese Academy of Sciences, Wuhan, 430072, China
- College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Zuoyan Zhu
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, The Innovative Academy of Seed Design, Chinese Academy of Sciences, Wuhan, 430072, China
- College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yonghua Sun
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, The Innovative Academy of Seed Design, Chinese Academy of Sciences, Wuhan, 430072, China.
- College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China.
| |
Collapse
|
72
|
Liao J, Ng SH, Luk AC, Suen HC, Qian Y, Lee AWT, Tu J, Fung JCL, Tang NLS, Feng B, Chan WY, Fouchet P, Hobbs RM, Lee TL. Revealing cellular and molecular transitions in neonatal germ cell differentiation using single cell RNA sequencing. Development 2019; 146:dev174953. [PMID: 30824552 DOI: 10.1242/dev.174953] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2018] [Accepted: 02/17/2019] [Indexed: 12/22/2022]
Abstract
Neonatal germ cell development provides the foundation of spermatogenesis. However, a systematic understanding of this process is still limited. To resolve cellular and molecular heterogeneity in this process, we profiled single cell transcriptomes of undifferentiated germ cells from neonatal mouse testes and employed unbiased clustering and pseudotime ordering analysis to assign cells to distinct cell states in the developmental continuum. We defined the unique transcriptional programs underlying migratory capacity, resting cellular states and apoptosis regulation in transitional gonocytes. We also identified a subpopulation of primitive spermatogonia marked by CD87 (plasminogen activator, urokinase receptor), which exhibited a higher level of self-renewal gene expression and migration potential. We further revealed a differentiation-primed state within the undifferentiated compartment, in which elevated Oct4 expression correlates with lower expression of self-renewal pathway factors, higher Rarg expression, and enhanced retinoic acid responsiveness. Lastly, a knockdown experiment revealed the role of Oct4 in the regulation of gene expression related to the MAPK pathway and cell adhesion, which may contribute to stem cell differentiation. Our study thus provides novel insights into cellular and molecular regulation during early germ cell development.
Collapse
Affiliation(s)
- Jinyue Liao
- Developmental and Regenerative Biology Program, School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China
- The Chinese University of Hong Kong - Shandong University (CUHK-SDU) Joint Laboratory on Reproductive Genetics, Shatin, Hong Kong SAR, China
| | - Shuk Han Ng
- Developmental and Regenerative Biology Program, School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China
- The Chinese University of Hong Kong - Shandong University (CUHK-SDU) Joint Laboratory on Reproductive Genetics, Shatin, Hong Kong SAR, China
| | - Alfred Chun Luk
- Developmental and Regenerative Biology Program, School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China
- The Chinese University of Hong Kong - Shandong University (CUHK-SDU) Joint Laboratory on Reproductive Genetics, Shatin, Hong Kong SAR, China
| | - Hoi Ching Suen
- Developmental and Regenerative Biology Program, School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China
- The Chinese University of Hong Kong - Shandong University (CUHK-SDU) Joint Laboratory on Reproductive Genetics, Shatin, Hong Kong SAR, China
| | - Yan Qian
- Developmental and Regenerative Biology Program, School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China
- The Chinese University of Hong Kong - Shandong University (CUHK-SDU) Joint Laboratory on Reproductive Genetics, Shatin, Hong Kong SAR, China
| | - Annie Wing Tung Lee
- Developmental and Regenerative Biology Program, School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China
- The Chinese University of Hong Kong - Shandong University (CUHK-SDU) Joint Laboratory on Reproductive Genetics, Shatin, Hong Kong SAR, China
| | - Jiajie Tu
- Developmental and Regenerative Biology Program, School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China
- The Chinese University of Hong Kong - Shandong University (CUHK-SDU) Joint Laboratory on Reproductive Genetics, Shatin, Hong Kong SAR, China
| | - Jacqueline Chak Lam Fung
- Developmental and Regenerative Biology Program, School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China
- The Chinese University of Hong Kong - Shandong University (CUHK-SDU) Joint Laboratory on Reproductive Genetics, Shatin, Hong Kong SAR, China
| | - Nelson Leung Sang Tang
- Department of Chemical Pathology, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China
| | - Bo Feng
- Developmental and Regenerative Biology Program, School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China
- Key Laboratory for Regenerative Medicine, Ministry of Education, School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China
| | - Wai Yee Chan
- Developmental and Regenerative Biology Program, School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China
- The Chinese University of Hong Kong - Shandong University (CUHK-SDU) Joint Laboratory on Reproductive Genetics, Shatin, Hong Kong SAR, China
- Key Laboratory for Regenerative Medicine, Ministry of Education, School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China
- Joint CUHK-UoS (University of Southampton) Joint Laboratories for Stem Cells and Regenerative Medicine, School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China
- CUHK-BGI Innovation Institute of Trans-omics Hong Kong, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China
| | - Pierre Fouchet
- CEA DRF IBFJ IRCM, Laboratoire des Cellules Souches Germinales, 92265 Fontenay-aux-Roses, France
- Université Paris Diderot, Sorbonne Paris Cité, INSERM, UMR 967, 92265 Fontenay-aux-Roses, France
- Université Paris Sud, INSERM, UMR 967, 92265 Fontenay-aux-Roses, France
| | - Robin M Hobbs
- Development and Stem Cells Program, Monash Biomedicine Discovery Institute and Department of Anatomy and Developmental Biology, Monash University, Melbourne, Victoria 3800, Australia
| | - Tin Lap Lee
- Developmental and Regenerative Biology Program, School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China
- The Chinese University of Hong Kong - Shandong University (CUHK-SDU) Joint Laboratory on Reproductive Genetics, Shatin, Hong Kong SAR, China
- Key Laboratory for Regenerative Medicine, Ministry of Education, School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China
- Joint CUHK-UoS (University of Southampton) Joint Laboratories for Stem Cells and Regenerative Medicine, School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China
- CUHK-BGI Innovation Institute of Trans-omics Hong Kong, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China
| |
Collapse
|
73
|
Lacerda SMSN, Martinez ERM, Mura ILDD, Doretto LB, Costa GMJ, Silva MA, Digmayer M, Nóbrega RH, França LR. Duration of spermatogenesis and identification of spermatogonial stem cell markers in a Neotropical catfish, Jundiá (Rhamdia quelen). Gen Comp Endocrinol 2019; 273:249-259. [PMID: 30391241 DOI: 10.1016/j.ygcen.2018.10.018] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/21/2018] [Revised: 10/23/2018] [Accepted: 10/26/2018] [Indexed: 12/24/2022]
Abstract
Spermatogenesis is a process driven by stem cell, where germ cell cycle is under the control of a specific genotype species. Considering that Jundiá (Rhamdia quelen) is a Neotropical catfish with great economical importance and useful experimental model, little information is available on basic aspects of its reproductive biology, especially on spermatogenesis. As a result, this study aimed to characterize the male germ cells, estimate the duration of spermatogenesis and evaluate the expression of selected stem cell genes in Jundiá testis. Similar to other fish species, our results showed a remarkable decrease of germ cell nuclear volume during Jundiá spermatogenesis, particularly from type A undifferentiated to late type B spermatogonia and from diplotene to late spermatids. Using a S-phase marker, bromodeoxyuridine (BrdU), the combined duration of meiotic and spermiogenic phases in this species was estimated in approximately 7 days. This is considered very short when compared to mammals, where spermatogenesis last from 30 to 74 days. Selected stem cell genes were partially sequenced and characterized in Jundiá testis. Expression analysis showed higher plzf and pou5f3 mRNA levels in the cell fractions enriched by type A undifferentiated spermatogonia. These results were further confirmed by in situ hybridization that showed strong signal of plzf and pou5f3 mRNA in type A undifferentiated spermatogonia. Altogether, these information will expand our knowledge of the reproductive biology of this species, contributing to improve its production and management, and also for biotechnological applications, such as germ cell transplantation.
Collapse
Affiliation(s)
- S M S N Lacerda
- Laboratory of Cellular Biology, Department of Morphology, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | - E R M Martinez
- Reproductive and Molecular Biology Group, Department of Morphology, Institute of Bioscience of Botucatu, São Paulo State University, Botucatu, São Paulo, Brazil
| | - I L D D Mura
- Reproductive and Molecular Biology Group, Department of Morphology, Institute of Bioscience of Botucatu, São Paulo State University, Botucatu, São Paulo, Brazil
| | - L B Doretto
- Reproductive and Molecular Biology Group, Department of Morphology, Institute of Bioscience of Botucatu, São Paulo State University, Botucatu, São Paulo, Brazil
| | - G M J Costa
- Laboratory of Cellular Biology, Department of Morphology, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | - M A Silva
- Laboratory of Cellular Biology, Department of Morphology, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | - M Digmayer
- Reproductive and Molecular Biology Group, Department of Morphology, Institute of Bioscience of Botucatu, São Paulo State University, Botucatu, São Paulo, Brazil
| | - R H Nóbrega
- Reproductive and Molecular Biology Group, Department of Morphology, Institute of Bioscience of Botucatu, São Paulo State University, Botucatu, São Paulo, Brazil.
| | - L R França
- Laboratory of Cellular Biology, Department of Morphology, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil; National Institute for Amazonian Research, Manaus, AM, Brazil.
| |
Collapse
|
74
|
Elewa YHA, Mohamed AAR, Galal AAA, El-Naseery NI, Ichii O, Kon Y. Food Yellow4 reprotoxicity in relation to localization of DMC1 and apoptosis in rat testes: Roles of royal jelly and cod liver oil. Ecotoxicol Environ Saf 2019; 169:696-706. [PMID: 30500739 DOI: 10.1016/j.ecoenv.2018.11.082] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2018] [Revised: 11/14/2018] [Accepted: 11/19/2018] [Indexed: 06/09/2023]
Abstract
Food Yellow 4 (FY4) is a lemon-yellow-colored synthetic organic azo dye, which is used widely for imparting pleasant and attractive appearance to foods and cosmetics. The present study aimed at evaluating the possible mechanism underlying the FY4-induced reprotoxicity in rats, and the potential supportive role of royal jelly (RJ) or cod liver oil (CLO), which is a natural remedy with several pharmacological benefits, against induced toxicity. Forty-eight male rats were divided into different groups-the control group, the CLO group (0.4 mL/kg), the RJ group (300 mg/kg), the FY4 group (500 mg/kg b.w.), and the co-treated groups (FY4 + CLO or FY4 + RJ). Semen analysis, serum hormones, and enzyme activities were estimated. Immunohistochemical staining was performed using anti-PCNA, anti-Sox 9, anti-STRA8, anti-DMC1, and anti-ssDNA antibody. The FY4 group exhibited a significant decrease in sperm concentration and motility percentage (%) and a substantial reduction in the TES and LH levels. Testicular LDH, ACP, and SDH were observed to be inhibited. Furthermore, co-localization of DMC1 and ssDNA, which reflected apoptotic induction in the leptotene and zygotene spermatocytes, respectively, was observed to have markedly elevated in the FY4 treated rats, with fewer PCNA-positive and SOX9-positive cells and higher ssDNA-positive cells in the seminiferous epithelium in comparison to the control groups. Interestingly, co-treatment with CLO or RJ exhibited healthy sperms and restored their features, activated the enzyme production, and raised the levels of sexual hormones. In addition, both RJ and CLO restored the features of the testicular tissue as observed under a light microscope, and limited the apoptosis as observed through antibody staining. Collectively, the results of the present study revealed that the co-administration of RJ or CLO with FY4 improved the biochemical, hormonal, and structural aspects of the testicular tissue in rats. Therefore, CLO and RJ may be considered promising agents that would be able to improve the testicular structure and function in the FY4-exposed individuals.
Collapse
Affiliation(s)
- Yaser H A Elewa
- Department of Histology and Cytology, Faculty of Veterinary Medicine, Zagazig University, Zagazig 44511, Egypt; Laboratory of Anatomy, Department of Biomedical Sciences, Graduate School of Veterinary Medicine, Hokkaido University, Kita-Ku, Sapporo, Japan
| | - Amany Abdel-Rahman Mohamed
- Department of Forensic Medicine and Toxicology, Faculty of Veterinary Medicine, Zagazig University, Zagazig 44511, Egypt.
| | - Azza A A Galal
- Department of Pharmacology, Faculty of Veterinary Medicine, Zagazig University, Zagazig 44511, Egypt
| | - Nesma I El-Naseery
- Department of Histology and Cytology, Faculty of Veterinary Medicine, Zagazig University, Zagazig 44511, Egypt
| | - Osamu Ichii
- Laboratory of Anatomy, Department of Biomedical Sciences, Graduate School of Veterinary Medicine, Hokkaido University, Kita-Ku, Sapporo, Japan
| | - Yasuhiro Kon
- Laboratory of Anatomy, Department of Biomedical Sciences, Graduate School of Veterinary Medicine, Hokkaido University, Kita-Ku, Sapporo, Japan
| |
Collapse
|
75
|
Singh RP, Escobar E, Wildt D, Patel S, Costa GMJ, Pukazhenthi B. Effect of sphingosine-1-phosphate on cryopreserved sheep testicular explants cultured in vitro. Theriogenology 2019; 128:184-192. [PMID: 30772662 DOI: 10.1016/j.theriogenology.2019.01.038] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2018] [Revised: 12/29/2018] [Accepted: 01/31/2019] [Indexed: 10/27/2022]
Abstract
Complete spermatogenesis has been achieved in vitro in mouse testicular explants with resulting sperm used to produce pups after Intra Cytoplasm Sperm Injection and Embryo Transfer. In the present study, we evaluated the influence of sphingosine-1-phosphate (S1P) on spermatogenesis of frozen-thawed lamb testis explants in vitro. Thawed testicular pieces were cultured for 12 d on agarose blocks in serum-free growth medium containing 0, 2, 5 or 10 μM S1P. At the end of D6 and D12, some pieces were fixed and processed for histology. Other pieces were processed for RNA isolation and quantitation of proliferation (PCNA, Ki67) and differentiation (PLZF) markers and genes involved in S1P signaling (S1PR1, SGPL1, SGPP1, AKT1 and NFKBIA) by qPCR. Histology revealed an increase (P < 0.05) in seminiferous cord (SC) diameter under all culture conditions, except 5 and 10 μM S1P by D6. In the presence of 5 μM S1P, percentage of gonocytes decreased (P < 0.05) by D6 (control, 24.9% vs. S1P, 10.3%) with a concomitant increase (P < 0.05) in spermatogonia formation (control, 74.4% vs. S1P, 88.1%). S1P induced PCNA or Ki67 expression by D6, whereas PLZF was up-regulated (P < 0.05) by D6 in 2 μM S1P and D12 in 5 & 10 μM S1P. Expression of SGPL1 and SGPP1 increased 4-12-fold in tissues cultured in 10 μM S1P by D12 compared to D12 control. AKT1 and NFKBIA mRNA expression was low (P < 0.05) in 5 and or 10 μM S1P treatments on D6. These results demonstrate that S1P promotes germ cell proliferation during first week of culture and may exert an anti-apoptotic influence on the seminiferous cord in sheep testicular explants in vitro.
Collapse
Affiliation(s)
- Ram Pratap Singh
- Center for Species Survival, Smithsonian Conservation Biology Institute, National Zoological Park, Front Royal, VA, USA; Sálim Ali Centre for Ornithology and Natural History, Anaikatty, Coimbatore, India.
| | - Enrique Escobar
- Department of Agriculture, Food and Resource Sciences, School of Agriculture and Natural Sciences, University of Maryland-Eastern Shore, Princess Anne, MD, USA
| | - David Wildt
- Center for Species Survival, Smithsonian Conservation Biology Institute, National Zoological Park, Front Royal, VA, USA
| | - Seema Patel
- Center for Species Survival, Smithsonian Conservation Biology Institute, National Zoological Park, Front Royal, VA, USA
| | - Guilherme M J Costa
- Laboratory of Cellular Biology, Department of Morphology, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Budhan Pukazhenthi
- Center for Species Survival, Smithsonian Conservation Biology Institute, National Zoological Park, Front Royal, VA, USA
| |
Collapse
|
76
|
Abstract
Germ cells transfer genetic materials from one generation to the next, which ensures the continuation of the species. Spermatogenesis, the process of male germ cell production, is one of the most productive systems in adult tissues. This high productivity depends on the well-coordinated differentiation cascade in spermatogonia, occurring via their synchronized cell division and proliferation. Spermatogonial stem cells (SSCs) are responsible for maintaining the spermatogonial population via self-renewal and the continuous generation of committed progenitor cells that differentiate into spermatozoa. Like other stem cells in the body, SSCs are defined by their self-renewal and differentiation abilities. A functional transplantation assay, in which these biological properties of SSCs can be quantitatively evaluated, was developed using mice, and the cell surface characteristics and intracellular marker gene expression of murine SSCs were successfully determined. Another approach to elucidate SSC identity is a cell lineage-tracing experiment using transgenic mice, which can track the SSC behavior in the testes. Recent studies using both these experimental approaches have revealed that the SSC identity changed depending upon the developmental, homeostatic, and regenerative circumstances. In addition, single-cell transcriptomic analyses have further indicated the instability of marker gene expression in SSCs. More studies are needed to unify the results of the determination of SSC identity based on the functional properties and accumulating transcriptomic data of SSCs, to elucidate the functional interaction between SSC behavior and gene products and illustrate the conserved features of SSCs amidst their heterogeneity. Furthermore, the deterministic roles of distinct SSC niches under different physiological conditions in the SSC heterogeneity and its causal regulators must also be clarified in future studies.
Collapse
Affiliation(s)
- Hiroshi Kubota
- Laboratory of Cell and Molecular Biology, Department of Animal Science, School of Veterinary Medicine, Kitasato University, Towada, Aomori, 034-8628, Japan.
| |
Collapse
|
77
|
Lujić J, Marinović Z, Bajec SS, Djurdjevič I, Urbányi B, Horváth Á. Interspecific germ cell transplantation: a new light in the conservation of valuable Balkan trout genetic resources? Fish Physiol Biochem 2018; 44:1487-1498. [PMID: 29756177 DOI: 10.1007/s10695-018-0510-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2017] [Accepted: 05/04/2018] [Indexed: 06/08/2023]
Abstract
Interspecific transplantation of germ cells from the brown trout Salmo trutta m. fario and the European grayling Thymallus thymallus into rainbow trout Oncorhynchus mykiss recipients was carried out in order to improve current practices in conservation of genetic resources of endangered salmonid species in the Balkan Peninsula. Current conservation methods mainly include in situ efforts such as the maintenance of purebred individuals in isolated streams and restocking with purebred fingerlings; however, additional ex situ strategies such as surrogate production are needed. Steps required for transplantation such as isolation of high number of viable germ cells and fluorescent labeling of germ cells which are to be transplanted have been optimized. Isolated and labeled brown trout and grayling germ cells were intraperitoneally transplanted into 3 to 5 days post hatch rainbow trout larvae. Survival of the injected larvae was comparable to the controls. Sixty days after transplantation, fluorescently labeled donor cells were detected within the recipient gonads indicating successful incorporation of germ cells (brown trout spermatogonia and oogonia-27%; grayling spermatogonia-28%; grayling oogonia-23%). PCR amplification of donor mtDNA CR fragments within the recipient gonads additionally corroborated the success of incorporation. Overall, the transplantation method demonstrated in this study presents the first step and a possible onset of the application of the germ cell transplantation technology in conservation and revitalization of genetic resources of endangered and endemic species or populations of salmonid fish and thus give rise to new or improved management strategies for such species.
Collapse
Affiliation(s)
- Jelena Lujić
- Department of Aquaculture, Szent István University, Páter Károly u. 1, Gödöllő, 2100, Hungary
| | - Zoran Marinović
- Department of Aquaculture, Szent István University, Páter Károly u. 1, Gödöllő, 2100, Hungary.
| | - Simona Sušnik Bajec
- Department of Animal Science, Biotechnical Faculty, University of Ljubljana, Groblje 3, 1230, Domžale, Slovenia
| | - Ida Djurdjevič
- Department of Animal Science, Biotechnical Faculty, University of Ljubljana, Groblje 3, 1230, Domžale, Slovenia
| | - Béla Urbányi
- Department of Aquaculture, Szent István University, Páter Károly u. 1, Gödöllő, 2100, Hungary
| | - Ákos Horváth
- Department of Aquaculture, Szent István University, Páter Károly u. 1, Gödöllő, 2100, Hungary
| |
Collapse
|
78
|
Tomizawa SI, Kobayashi Y, Shirakawa T, Watanabe K, Mizoguchi K, Hoshi I, Nakajima K, Nakabayashi J, Singh S, Dahl A, Alexopoulou D, Seki M, Suzuki Y, Royo H, Peters AHFM, Anastassiadis K, Stewart AF, Ohbo K. Kmt2b conveys monovalent and bivalent H3K4me3 in mouse spermatogonial stem cells at germline and embryonic promoters. Development 2018; 145:145/23/dev169102. [PMID: 30504434 DOI: 10.1242/dev.169102] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2018] [Accepted: 11/01/2018] [Indexed: 12/20/2022]
Abstract
The mammalian male germline is sustained by a pool of spermatogonial stem cells (SSCs) that can transmit both genetic and epigenetic information to offspring. However, the mechanisms underlying epigenetic transmission remain unclear. The histone methyltransferase Kmt2b is highly expressed in SSCs and is required for the SSC-to-progenitor transition. At the stem-cell stage, Kmt2b catalyzes H3K4me3 at bivalent H3K27me3-marked promoters as well as at promoters of a new class of genes lacking H3K27me3, which we call monovalent. Monovalent genes are mainly activated in late spermatogenesis, whereas most bivalent genes are mainly not expressed until embryonic development. These data suggest that SSCs are epigenetically primed by Kmt2b in two distinguishable ways for the upregulation of gene expression both during the spermatogenic program and through the male germline into the embryo. Because Kmt2b is also the major H3K4 methyltransferase for bivalent promoters in embryonic stem cells, we also propose that Kmt2b has the capacity to prime stem cells epigenetically.
Collapse
Affiliation(s)
- Shin-Ichi Tomizawa
- Department of Histology and Cell Biology, Yokohama City University School of Medicine, Yokohama 236-0004, Japan
| | - Yuki Kobayashi
- Department of Histology and Cell Biology, Yokohama City University School of Medicine, Yokohama 236-0004, Japan
| | - Takayuki Shirakawa
- Department of Histology and Cell Biology, Yokohama City University School of Medicine, Yokohama 236-0004, Japan
| | - Kumiko Watanabe
- Department of Histology and Cell Biology, Yokohama City University School of Medicine, Yokohama 236-0004, Japan
| | - Keita Mizoguchi
- Department of Histology and Cell Biology, Yokohama City University School of Medicine, Yokohama 236-0004, Japan
| | - Ikue Hoshi
- Department of Histology and Cell Biology, Yokohama City University School of Medicine, Yokohama 236-0004, Japan
| | - Kuniko Nakajima
- Department of Histology and Cell Biology, Yokohama City University School of Medicine, Yokohama 236-0004, Japan
| | - Jun Nakabayashi
- Bioinformatics Laboratory, Advanced Medical Research Center, Yokohama City University School of Medicine, Yokohama 236-0004, Japan
| | - Sukhdeep Singh
- Biotechnology Center, Center for Molecular and Cellular Bioengineering, Technische Universität Dresden, Tatzberg 47-51, 01307 Dresden, Germany
| | - Andreas Dahl
- Genome Center, Center for Molecular and Cellular Bioengineering, Technische Universität Dresden, Tatzberg 47-51, 01307 Dresden, Germany
| | - Dimitra Alexopoulou
- Genome Center, Center for Molecular and Cellular Bioengineering, Technische Universität Dresden, Tatzberg 47-51, 01307 Dresden, Germany
| | - Masahide Seki
- Department of Computational Biology and Medical Sciences, Graduate School of Frontier Sciences, The University of Tokyo, Chiba 277-8562, Japan
| | - Yutaka Suzuki
- Department of Computational Biology and Medical Sciences, Graduate School of Frontier Sciences, The University of Tokyo, Chiba 277-8562, Japan
| | - Hélène Royo
- Friedrich Miescher Institute for Biomedical Research, 4058 Basel, Switzerland.,Swiss Institute of Bioinformatics, 4056 Basel, Switzerland
| | - Antoine H F M Peters
- Friedrich Miescher Institute for Biomedical Research, 4058 Basel, Switzerland.,Faculty of Sciences, University of Basel, 4058 Basel, Switzerland
| | - Konstantinos Anastassiadis
- Biotechnology Center, Center for Molecular and Cellular Bioengineering, Technische Universität Dresden, Tatzberg 47-51, 01307 Dresden, Germany
| | - A Francis Stewart
- Biotechnology Center, Center for Molecular and Cellular Bioengineering, Technische Universität Dresden, Tatzberg 47-51, 01307 Dresden, Germany
| | - Kazuyuki Ohbo
- Department of Histology and Cell Biology, Yokohama City University School of Medicine, Yokohama 236-0004, Japan
| |
Collapse
|
79
|
Niimi Y, Imai A, Nishimura H, Yui K, Kikuchi A, Koike H, Saga Y, Suzuki A. Essential role of mouse Dead end1 in the maintenance of spermatogonia. Dev Biol 2018; 445:103-112. [PMID: 30439356 DOI: 10.1016/j.ydbio.2018.11.003] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Revised: 11/08/2018] [Accepted: 11/08/2018] [Indexed: 01/11/2023]
Abstract
Dead end is a vertebrate-specific RNA-binding protein implicated in germ cell development. We have previously shown that mouse Dead end1 (DND1) is expressed in male embryonic germ cells and directly interacts with NANOS2 to cooperatively promote sexual differentiation of fetal germ cells. In addition, we have also reported that NANOS2 is expressed in self-renewing spermatogonial stem cells and is required for the maintenance of the stem cell state. However, it remains to be determined whether DND1 works with NANOS2 in the spermatogonia. Here, we show that DND1 is expressed in a subpopulation of differentiating spermatogonia and undifferentiated spermatogonia, including NANOS2-positive spermatogonia. Conditional disruption of DND1 depleted both differentiating and undifferentiated spermatogonia; however, the numbers of Asingle and Apaired spermatogonia were preferentially decreased as compared with those of Aaligned spermatogonia. Finally, we found that postnatal DND1 associates with NANOS2 in vivo, independently of RNA, and interacts with some of NANOS2-target mRNAs. These data not only suggest that DND1 is a partner of NANOS2 in undifferentiated spermatogonia as well as in male embryonic germ cells, but also show that DND1 plays an essential role in the survival of differentiating spermatogonia.
Collapse
Affiliation(s)
- Yuki Niimi
- Division of Materials Science and Chemical Engineering, Graduate School of Engineering, Yokohama National University, Yokohama, Kanagawa 240-8501, Japan
| | - Atsuki Imai
- Division of Materials Science and Chemical Engineering, Graduate School of Engineering, Yokohama National University, Yokohama, Kanagawa 240-8501, Japan
| | - Hitomi Nishimura
- Division of Materials Science and Chemical Engineering, Graduate School of Engineering, Yokohama National University, Yokohama, Kanagawa 240-8501, Japan
| | - Kenya Yui
- Division of Materials Science and Chemical Engineering, Graduate School of Engineering, Yokohama National University, Yokohama, Kanagawa 240-8501, Japan
| | - Ai Kikuchi
- Division of Materials Science and Chemical Engineering, Graduate School of Engineering, Yokohama National University, Yokohama, Kanagawa 240-8501, Japan
| | - Hiroko Koike
- Division of Mammalian Development, National Institute of Genetics, Mishima, Shizuoka 411-8540, Japan
| | - Yumiko Saga
- Division of Mammalian Development, National Institute of Genetics, Mishima, Shizuoka 411-8540, Japan
| | - Atsushi Suzuki
- Division of Materials Science and Chemical Engineering, Graduate School of Engineering, Yokohama National University, Yokohama, Kanagawa 240-8501, Japan; Division of Materials Science and Chemical Engineering, Faculty of Engineering, Yokohama National University, Yokohama, Kanagawa 240-8501, Japan.
| |
Collapse
|
80
|
Rajasekaran S, Thatte J, Periasamy J, Javali A, Jayaram M, Sen D, Krishnagopal A, Jayandharan GR, Sambasivan R. Infectivity of adeno-associated virus serotypes in mouse testis. BMC Biotechnol 2018; 18:70. [PMID: 30384832 PMCID: PMC6211462 DOI: 10.1186/s12896-018-0479-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2018] [Accepted: 10/18/2018] [Indexed: 01/01/2023] Open
Abstract
Background Recombinant adeno-associated viruses (AAVs) are emerging as favoured transgene delivery vectors for both research applications and gene therapy. In this context, a thorough investigation of the potential of various AAV serotypes to transduce specific cell types is valuable. Here, we rigorously tested the infectivity of a number of AAV serotypes in murine testis by direct testicular injection. Results We report the tropism of serotypes AAV2, 5, 8, 9 and AAVrh10 in mouse testis. We reveal unique infectivity of AAV2 and AAV9, which preferentially target intertubular testosterone-producing Leydig cells. Remarkably, AAV2 TM, a mutant for capsid designed to increase transduction, displayed a dramatic alteration in tropism; it infiltrated seminiferous tubules unlike wildtype AAV2 and transduced Sertoli cells. However, none of the AAVs tested infected spermatogonial cells. Conclusions In spite of direct testicular injection, none of the tested AAVs appeared to infect sperm progenitors as assayed by reporter expression. This lends support to the current view that AAVs are safe gene-therapy vehicles. However, testing the presence of rAAV genomic DNA in germ cells is necessary to assess the risk of individual serotypes. Electronic supplementary material The online version of this article (10.1186/s12896-018-0479-1) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
| | - Jayashree Thatte
- Institute for Stem Cell Biology and Regenerative Medicine, GKVK Campus, Bellary Road, Bengaluru, 560065, India
| | - Jayaprakash Periasamy
- Institute for Stem Cell Biology and Regenerative Medicine, GKVK Campus, Bellary Road, Bengaluru, 560065, India
| | - Alok Javali
- Institute for Stem Cell Biology and Regenerative Medicine, GKVK Campus, Bellary Road, Bengaluru, 560065, India.,National Centre for Biological Sciences, TIFR, GKVK Campus, Bellary Road, Bengaluru, 560065, India
| | - Manjunath Jayaram
- Institute for Stem Cell Biology and Regenerative Medicine, GKVK Campus, Bellary Road, Bengaluru, 560065, India
| | - Dwaipayan Sen
- Department of Haematology and Centre for Stem Cell Research, Christian Medical College, Vellore, 632004, India.,Cellular and Molecular Therapeutics Laboratory, Centre for Biomaterials, Cellular and Molecular Theranostics (CBCMT), Vellore Institute of Technology (VIT), Vellore, 632014, India
| | - Akshaya Krishnagopal
- Department of Haematology and Centre for Stem Cell Research, Christian Medical College, Vellore, 632004, India
| | - Giridhara R Jayandharan
- Department of Haematology and Centre for Stem Cell Research, Christian Medical College, Vellore, 632004, India.,Department of Biological Sciences and Bioengineering, Indian Institute of Technology, Kanpur, 208016, India
| | - Ramkumar Sambasivan
- Institute for Stem Cell Biology and Regenerative Medicine, GKVK Campus, Bellary Road, Bengaluru, 560065, India.
| |
Collapse
|
81
|
Liu Y, Hu Y, Wang L, Xu C. Expression of transcriptional factor EB (TFEB) in differentiating spermatogonia potentially promotes cell migration in mouse seminiferous epithelium. Reprod Biol Endocrinol 2018; 16:105. [PMID: 30360758 PMCID: PMC6202848 DOI: 10.1186/s12958-018-0427-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/29/2018] [Accepted: 10/17/2018] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Spermatogenesis is a complex process involving the self-renewal and differentiation of spermatogonia into mature spermatids in the seminiferous tubules. During spermatogenesis, germ cells migrate from the basement membrane to cross the blood-testis barrier (BTB) and finally reach the luminal side of the seminiferous epithelium. However, the mechanism for regulating the migration of germ cells remains unclear. In this study, we focused on the expression and function of transcriptional factor EB (TFEB), a master regulator of lysosomal biogenesis, autophagy and endocytosis, in spermatogenesis. METHODS The expression pattern of the TFEB in mouse testes were investigated by Western blotting and immunohistochemistry analyses. Either undifferentiated spermatogonia or differentiating spermatogonia were isolated from testes using magnetic-activated cell sorting based on specific cell surface markers. Differentiation of spermatogonia was induced with 100 nM retinoic acid (RA). shRNA was used to knock down TFEB in cells. TFEB expression was detected by immunofluorescence, qRT-PCR, and Western blotting. Cell migration was determined by both transwell migration assay and wound healing assay applied to a cell line of immortalized spermatogonia, GC-1 cells. RESULTS During testicular development, TFEB expression was rapidly increased in the testes at the period of 7 days post-partum (dpp) to 14 dpp, whereas in adult testis, it was predominantly localized in the nucleus of spermatogonia at stages VI to VIII of the seminiferous epithelial cycle. Accordingly, TFEB was observed to be mainly expressed in differentiating spermatogonia and was activated for nuclear translocation by RA treatment. Moreover, knockdown of TFEB expression by RNAi did not affect spermatogonial differentiation, but significantly reduced cell migration in GC-1 cells. CONCLUSION These findings imply that regionally distinct expression and activation of TFEB was strongly associated with RA signaling, and therefore may promote cell migration across the BTB and transport along the seminiferous epithelium.
Collapse
Affiliation(s)
- Yue Liu
- Department of Histology, Embryology, Genetics and Developmental Biology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China.
- Shanghai Key Laboratory for Reproductive Medicine, Shanghai, 200025, China.
| | - Yanqin Hu
- Department of Histology, Embryology, Genetics and Developmental Biology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
- Shanghai Key Laboratory for Reproductive Medicine, Shanghai, 200025, China
| | - Li Wang
- Department of Histology, Embryology, Genetics and Developmental Biology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
- Shanghai Key Laboratory for Reproductive Medicine, Shanghai, 200025, China
| | - Chen Xu
- Department of Histology, Embryology, Genetics and Developmental Biology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China.
- Shanghai Key Laboratory for Reproductive Medicine, Shanghai, 200025, China.
| |
Collapse
|
82
|
Zhang TJ, Liu XY, Qiao X, Liu CY, Zhang SL, Lu HY. [Effect of oral appliance on reproductive system of the male New-Zealand rabbit with obstructive sleep apnea-hypopnea syndrome]. Zhonghua Yi Xue Za Zhi 2018; 98:3090-3095. [PMID: 30392270 DOI: 10.3760/cma.j.issn.0376-2491.2018.38.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To observe the effect of the mandible advanced device on the reproductive system of the male New-Zealand rabbit with obstructive sleep apnea-hypopnea syndrome (OSAHS). Methods: Thirty male New-Zealand white rabbits were randomly divided into three groups (with 10 rabbits in each group): sleep apnea-hypopnea syndrome group (group OSAHS), mandible advanced device group (group MAD) and control group. On the basis of the OSAHS animal model, mandible advanced devices were used for group MAD animals. After intervention for 8 weeks (sleeping by dorsal position, 4-6 hours/d), the samples were gained from the animals under general anesthesia and observed under the transmission electron microscope (TEM) and the AX-80 universal microscope. The cauda epididymis was obtained to be observed the number, viability, motility and abnormal rate of spermatozoa. Results: Compared with the control group, the upper airway space, the saturation of blood oxygen, partial pressure of oxygen, pH, the number, viability rate and motility rate of spermatozoa in cauda epididymis of the group OSAHS were significant decreased (all P<0.05), and the partial pressure of carbon dioxide and the rate of teratospermia was significant increased (both P<0.05). But compared with the control group, these indexes mentioned above in the group MAD showed no statistical significance (all P>0.05). TEM and the light microscope showed that the status of spermatogenic cell, seminiferous tubule and spermatogenic epithelium was improved in the group MAD. The correlation analysis showed that the saturation of blood oxygen had a negative correlation with the rate of teratospermia (r=-0.614, P<0.001). Conclusion: The damage of spermatogenic cells and the decrease of the sperm quality caused by OSAHS in New-Zealand rabbits could be improved by the mandible advanced devices.
Collapse
Affiliation(s)
- T J Zhang
- Department of Urology, Children's Hospital of Hebei Province, Shijiazhuang 050031, China
| | | | | | | | | | | |
Collapse
|
83
|
Kanatsu-Shinohara M, Morimoto H, Watanabe S, Shinohara T. Reversible inhibition of the blood-testis barrier protein improves stem cell homing in mouse testes. J Reprod Dev 2018; 64:511-522. [PMID: 30175719 PMCID: PMC6305854 DOI: 10.1262/jrd.2018-093] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
Stem cell homing is a complex phenomenon that involves multiple steps; thus far, attempts to increase homing efficiency have met with limited success. Spermatogonial stem cells (SSCs)
migrate to the niche after microinjection into seminiferous tubules, but the homing efficiency is very low. Here we report that reversible disruption of the blood-testis barrier (BTB)
between Sertoli cells enhances the homing efficiency of SSCs. We found that SSCs on a C57BL/6 background are triggered to proliferate in vitro when MHY1485, which stimulates
MTORC, were added to culture medium. However, the cultured cells did not produce offspring by direct injection into the seminiferous tubules. When acyline, a gonadotropin-releasing hormone
(GnRH) analogue, was administered into infertile recipients, SSC colonization increased by ~5-fold and the recipients sired offspring. In contrast, both untreated individuals and recipients
that received leuprolide, another GnRH analogue, remained infertile. Acyline not only decreased CLDN5 expression but also impaired the BTB, suggesting that increased colonization was caused
by efficient SSC migration through the BTB. Enhancement of stem cell homing by tight junction protein manipulation constitutes a new approach to improve homing efficiency, and similar
strategy may be applicable to other self-renewing tissues.
Collapse
Affiliation(s)
- Mito Kanatsu-Shinohara
- Department of Molecular Genetics, Graduate School of Medicine, Kyoto University, Kyoto 606-8501, Japan
| | - Hiroko Morimoto
- Department of Molecular Genetics, Graduate School of Medicine, Kyoto University, Kyoto 606-8501, Japan
| | - Satoshi Watanabe
- Department of Molecular Genetics, Graduate School of Medicine, Kyoto University, Kyoto 606-8501, Japan
| | - Takashi Shinohara
- Department of Molecular Genetics, Graduate School of Medicine, Kyoto University, Kyoto 606-8501, Japan
| |
Collapse
|
84
|
Zheng Y, Lei Q, Jongejan A, Mulder CL, van Daalen SKM, Mastenbroek S, Hwang G, Jordan PW, Repping S, Hamer G. The influence of retinoic acid-induced differentiation on the radiation response of male germline stem cells. DNA Repair (Amst) 2018; 70:55-66. [PMID: 30179733 DOI: 10.1016/j.dnarep.2018.08.027] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2018] [Revised: 08/23/2018] [Accepted: 08/27/2018] [Indexed: 12/19/2022]
Abstract
Lifelong mammalian male fertility is maintained through an intricate balance between spermatogonial proliferation and differentiation. DNA damage in spermatogonia, for instance caused by chemo- or radiotherapy, can induce cell cycle arrest or germ cell apoptosis, possibly resulting in male infertility. Spermatogonia are generally more radiosensitive and prone to undergo apoptosis than somatic cells. Among spermatogonial subtypes the response to DNA damage is differentially modulated; undifferentiated spermatogonia, including the spermatogonial stem cells (SSCs), are relatively radio-resistant, whereas differentiating spermatogonia are very radiosensitive. To investigate the molecular mechanisms underlying this difference, we used an in vitro system consisting of mouse male germline stem (GS) cells that can be induced to differentiate. Using RNA-sequencing analysis, we analyzed the response of undifferentiated and differentiating GS cells to ionizing radiation (IR). At the RNA expression level, both undifferentiated and differentiating GS cells showed a very similar response to IR. Protein localization of several genes found to be involved in either spermatogonial differentiation or radiation response was investigated using mouse testis sections. For instance, we found that the transcription factor PDX1 was specifically expressed in undifferentiated spermatogonia and thus may be a novel marker for these cells. Interestingly, also at the protein level, undifferentiated GS cells showed a more pronounced upregulation of p53 in response to IR than differentiating GS cells. The higher p53 protein level in undifferentiated spermatogonia may preferentially induce cell cycle arrest, thereby giving these cells more time to repair inflicted DNA damage and increase their radio-resistance.
Collapse
|
85
|
Niedenberger BA, Cook K, Baena V, Serra ND, Velte EK, Agno JE, Litwa KA, Terasaki M, Hermann BP, Matzuk MM, Geyer CB. Dynamic cytoplasmic projections connect mammalian spermatogonia in vivo. Development 2018; 145:dev161323. [PMID: 29980567 PMCID: PMC6110146 DOI: 10.1242/dev.161323] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Accepted: 06/27/2018] [Indexed: 01/12/2023]
Abstract
Throughout the male reproductive lifespan, spermatogonial stem cells (SSCs) produce committed progenitors that proliferate and then remain physically connected in growing clones via short cylindrical intercellular bridges (ICBs). These ICBs, which enlarge in meiotic spermatocytes, have been demonstrated to provide a conduit for postmeiotic haploid spermatids to share sex chromosome-derived gene products. In addition to ICBs, spermatogonia exhibit multiple thin cytoplasmic projections. Here, we have explored the nature of these projections in mice and find that they are dynamic, span considerable distances from their cell body (≥25 μm), either terminate or physically connect multiple adjacent spermatogonia, and allow for sharing of macromolecules. Our results extend the current model that subsets of spermatogonia exist as isolated cells or clones, and support a model in which spermatogonia of similar developmental fates are functionally connected through a shared dynamic cytoplasm mediated by thin cytoplasmic projections.
Collapse
Affiliation(s)
- Bryan A Niedenberger
- Department of Anatomy and Cell Biology at East Carolina University, Greenville, NC 27834, USA
| | - Kenneth Cook
- Department of Anatomy and Cell Biology at East Carolina University, Greenville, NC 27834, USA
| | - Valentina Baena
- Department of Cell Biology, University of Connecticut Health Center, Farmington, CT 06030, USA
| | - Nicholas D Serra
- Department of Anatomy and Cell Biology at East Carolina University, Greenville, NC 27834, USA
| | - Ellen K Velte
- Department of Anatomy and Cell Biology at East Carolina University, Greenville, NC 27834, USA
| | - Julio E Agno
- Center for Drug Discovery and Department of Pathology and Immunology, Baylor College of Medicine, Houston, TX 77030, USA
| | - Karen A Litwa
- Department of Anatomy and Cell Biology at East Carolina University, Greenville, NC 27834, USA
| | - Mark Terasaki
- Department of Cell Biology, University of Connecticut Health Center, Farmington, CT 06030, USA
| | - Brian P Hermann
- Department of Biology, University of Texas at San Antonio, San Antonio, TX 78249, USA
| | - Martin M Matzuk
- Center for Drug Discovery and Department of Pathology and Immunology, Baylor College of Medicine, Houston, TX 77030, USA
| | - Christopher B Geyer
- Department of Anatomy and Cell Biology at East Carolina University, Greenville, NC 27834, USA
- East Carolina Diabetes and Obesity Institute at East Carolina University, Greenville, NC 27834, USA
| |
Collapse
|
86
|
Goissis MD, Giassetti MI, Worst RA, Mendes CM, Moreira PV, Assumpção MEOA, Visintin JA. Spermatogonial stem cell potential of CXCR4-positive cells from prepubertal bull testes. Anim Reprod Sci 2018; 196:219-229. [PMID: 30120011 DOI: 10.1016/j.anireprosci.2018.08.014] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Revised: 07/27/2018] [Accepted: 08/10/2018] [Indexed: 12/22/2022]
Abstract
Spermatogonial stem cells (SSC) have the potential to restore spermatogenesis when transplanted into testes depleted of germ cells. Due to this property, SSC could be used in breeding programs and in transgenic animal research. Particularly in cattle, SSC are not as well characterized as in mice or humans. In mice, C-X-C Motif Chemokine Receptor 4 positive (CXCR4+) testicular cells have high SSC potential. It, therefore, was hypothesized that CXCR4 is a marker of undifferentiated spermatogonia in cattle. Using samples from pre-pubertal calves, the CXCR4 protein was detected by immunohistochemistry in a few cells of the seminiferous tubules. Testicular cells were isolated, frozen-thawed and submitted to magnetic-activated cell sorting using anti-CXCR4 antibody. Quantitative RT-PCR analysis revealed that CXCR4+ cells had THY1, OCT4 and ZBTB16 (or PLZF) mRNA in these cells. Flow cytometry results indicated that the proportion of THY1+ cells is enriched in CXCR4+ populations. Colonization potential of CXCR4+ cells was assessed after xenotransplantation into testes of nude mice treated with busulfan. Transplantation of CXCR4+ cells yielded an increase of 5.4-fold when compared to CXCR4- cells. These results indicate that CXCR4 could be used as a marker to enrich and sort cells of bulls with putative spermatogonial stem cell potential.
Collapse
Affiliation(s)
- Marcelo D Goissis
- Department of Animal Reproduction, School of Veterinary Medicine and Animal Science, University of São Paulo, Brazil.
| | - Mariana I Giassetti
- Department of Animal Reproduction, School of Veterinary Medicine and Animal Science, University of São Paulo, Brazil
| | - Robinson A Worst
- Department of Animal Reproduction, School of Veterinary Medicine and Animal Science, University of São Paulo, Brazil
| | - Camilla M Mendes
- Department of Animal Reproduction, School of Veterinary Medicine and Animal Science, University of São Paulo, Brazil
| | - Pedro V Moreira
- Department of Animal Reproduction, School of Veterinary Medicine and Animal Science, University of São Paulo, Brazil
| | - Mayra E O A Assumpção
- Department of Animal Reproduction, School of Veterinary Medicine and Animal Science, University of São Paulo, Brazil
| | - Jose A Visintin
- Department of Animal Reproduction, School of Veterinary Medicine and Animal Science, University of São Paulo, Brazil
| |
Collapse
|
87
|
Mohaqiq M, Movahedin M, Mazaheri Z, Amirjannati N. Successful Human Spermatogonial Stem Cells Homing in Recipient Mouse Testis after In Vitro Transplantation and Organ Culture. Cell J 2018; 20:513-520. [PMID: 30123997 PMCID: PMC6099147 DOI: 10.22074/cellj.2019.5675] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Accepted: 02/05/2018] [Indexed: 12/27/2022]
Abstract
Objective In vitro transplantation (IVT) of spermatogonial stem cells (SSCs) is one of the most recent methods in
transplantation in recent decades. In this study, IVT and SSCs homing on seminiferous tubules of host testis in organ culture
have been studied.
Materials and Methods In this experimental study, human SSCs were isolated and their identities were confirmed by tracking
their promyelocytic leukemia zinc finger (PLZF) protein. These cells were transplanted to adult azoospermia mouse testes
using two methods, namely, IVT and in vivo transplantation as transplantation groups, and testes without transplantation of
cells were assigned in the control group. Then histomorphometric, immunohistochemical and molecular studies were done
after 2 weeks.
Results After two weeks, histomorphometric studies revealed that the number of subsided spermatogonial cells (SCs)
and the percentage of tubules with subsided SCs in IVT and in vivo groups were significantly more than those in the
control group (P<0.05). Immunohistochemical studies in the transplantation groups confirmed that the PLZF protein
was expressed in the cells subsided on the seminiferous tubule. Quantitative reverse-transcription polymerase chain
reaction (qRT-PCR) demonstrated that the PLZF gene expression was only positive in the transplantation groups, but
it was not significantly different between the IVT group and the in vivo group (P>0.05).
Conclusion Testicular tissue culture conditions after SSC transplantation can help these cells subside on the seminiferous
tubule basement membrane.
Collapse
Affiliation(s)
- Mahdi Mohaqiq
- Department of Anatomical Sciences, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Mansoureh Movahedin
- Department of Anatomical Sciences, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran. Electronic Address:
| | - Zohreh Mazaheri
- Department of Anatomical Sciences, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Naser Amirjannati
- Department of Andrology and Embryology, Reproductive Biotechnology Research Center, Avicenna Research Institute, ACECR, Tehran, Iran
| |
Collapse
|
88
|
Xu YR, Wang GY, Zhou YC, Yang WX. The characterization and potential roles of bone morphogenetic protein 7 during spermatogenesis in Chinese mitten crab Eriocheir sinensis. Gene 2018; 673:119-129. [PMID: 29890312 DOI: 10.1016/j.gene.2018.06.020] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Revised: 05/31/2018] [Accepted: 06/07/2018] [Indexed: 01/12/2023]
Abstract
Bone morphogenetic proteins (BMPs), which belong to the transforming growth factor-β superfamily, have been implicated in various biological and physiological processes, especially in the gonad development. However, scarce studies were focused on the roles of BMPs in the reproductive system of crustaceans. In this study, the whole gene encoding BMP7 protein was cloned and characterized firstly in Chinese mitten crab Eriocheir sinensis. The bioinformatics analysis of the deduced amino acid sequence showed that Es-BMP7 was composed of prodomain/latency-associated peptide and the TGF-β characteristic domain. The sequence conservation and phylogenetic analysis were also conducted. Quantitative real-time PCR was conducted indifferent tissues. The highest expression in testis indicated the potential role of BMP7 to male gonad development. Western blot results showed the different translational levels of BMP7 in different tissues. In-situ hybridization revealed that the expression of es-bmp7 signals presented in a bimodal manner: highest in spermatogonia, decreased in spermatocytes and stage I spermatids, disappeared in stage II spermatids, and showed up again in stage III spermatids and mature sperm. To further verify the potential roles during spermatogenesis, immunofluorescence was conducted and results showed the similar expression tendency with in situ hybridization. The protein signal was highest in the cytoplasm of spermatogonia, continued to decline in the cytoplasm of spermatocytes and the following stages, and weak signal was found in the mature sperm. Taken together, our results revealed that Es-BMP7 might play a part in testis development in Eriocheir sinensis, presumably by maintaining the self-renewal of spermatogonia and promoting the germ cell differentiation/meiotic mitosis, or facilitating the successful fertilization.
Collapse
Affiliation(s)
- Ya-Ru Xu
- The Sperm Laboratory, College of Life Sciences, Zhejiang University, Hangzhou 310058, China
| | - Gao-Yuan Wang
- The Sperm Laboratory, College of Life Sciences, Zhejiang University, Hangzhou 310058, China
| | - Yi-Chao Zhou
- The Sperm Laboratory, College of Life Sciences, Zhejiang University, Hangzhou 310058, China
| | - Wan-Xi Yang
- The Sperm Laboratory, College of Life Sciences, Zhejiang University, Hangzhou 310058, China.
| |
Collapse
|
89
|
Singh Nee Priyadarshini P, Lal B. Seasonal variations in cellular expression of neuropeptide Y (NPY) in testis of the catfish, Clarias batrachus and its potential role in regulation of steroidogenesis. Peptides 2018; 103:19-25. [PMID: 29548972 DOI: 10.1016/j.peptides.2018.03.008] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/15/2017] [Revised: 02/14/2018] [Accepted: 03/12/2018] [Indexed: 11/19/2022]
Abstract
The present study demonstrates seasonal variation in the cellular expression of neuropeptide Y (NPY), a known orexigenic neuropeptide, in the testis of the catfish, Clarias batrachus and its relation with testicular steroids. In vitro effects of NPY on androgen production and activities of steroidogenic enzymes were also analyzed to reaffirm the relation between NPY and steroids. NPY-immunoprecipitation was observed in Sertoli cells, interstitial cells and germ cells in recrudescing testis. Intensity of NPY-immunoreaction in the interstitial cells increased steadily with initiation of spermatogenesis and reached maximal in fully grown testes, and then decreased suddenly in the spermiating/spent testis. NPY was also expressed considerably in Sertoli cells in recrudescing testis, but disappeared in the fully grown testis. A moderate NPY-immunoreactivity was also seen in spermatogonial cells in recrudescing testis, but intense NPY-immunoprecipitation was detected in advanced germ cells (spermatids/spermatozoa) in fully mature testis. NPY-immunoreation intensity in interstitial cells showed positive correlation with increasing levels of testicular testosterone and 11-ketotestosterone, and with activities of 3β-HSD & 17β-HSD coinciding with advancing testicular activities. NPY treatment of testicular fragments in vitro stimulated the activities of 3β-HSD & 17β-HSD and increased testosterone & 11-ketotestosterone levels. This study for the first time demonstrates the existence of NPY peptide at cellular levels in fish testis, which stimulates androgen production by acting directly at testicular level.
Collapse
Affiliation(s)
| | - Bechan Lal
- Fish Endocrinology Laboratory, Department of Zoology, Institute of Science, Banaras Hindu University, Varanasi, 221005, India.
| |
Collapse
|
90
|
Tremblay AR, Delbes G. In vitro study of doxorubicin-induced oxidative stress in spermatogonia and immature Sertoli cells. Toxicol Appl Pharmacol 2018; 348:32-42. [PMID: 29660436 DOI: 10.1016/j.taap.2018.04.014] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2018] [Revised: 04/10/2018] [Accepted: 04/11/2018] [Indexed: 02/02/2023]
Abstract
Pediatric chemotherapy treatments can impair long-term male fertility. Unfortunately, no fertility preservation solution is available for pre-pubertal boys. Studies suggest that doxorubicin, used against pediatric cancers, induces oxidative stress in the testis. However, the targeted testicular cell types remain unknown. The goal of this study was to determine whether doxorubicin can induce oxidative stress in rat spermatogonia (GC-6Spg) and immature Sertoli (Ser-W3) cell lines, and to assess their protection by antioxidants. Using the MTT assay, we have shown that doxorubicin induces a time- and dose-dependent cytotoxicity in these two cell lines, Ser-W3 being more sensitive than GC-6Spg. After 3 h of treatment, reactive oxygen species and nuclear 8-oxo-deoxyguanosine increase in Ser-W3, but not in GC-6Spg. Moreover, after 6 h of treatment, intracellular reduced glutathione levels decrease significantly in Ser-W3 cells. These results show that doxorubicin induces oxidative stress in the Ser-W3 cell line. However, a depletion in glutathione does not affect their survival, and supplementation only offers a weak protection after exposure to doxorubicin, suggesting that the glutathione system is not essential for Ser-W3 cell line's defense against doxorubicin. On the other hand, among four antioxidants selected from the literature, none reduces the cytotoxicity of doxorubicin in Ser-W3 cells. Together, our data suggest that oxidative stress may not be a major pathway for doxorubicin's cytotoxicity in GC-6Spg and Ser-W3 lines. This study provides new insights in the mechanisms by which chemotherapies affect the pre-pubertal testis, with the long-term goal to help improve the quality of life of pediatric cancer survivors.
Collapse
|
91
|
Olejnik J, Suchowerska N, Herrid M, Jackson A, Jackson M, Andronicos NM, Hinch GN, Hill JR. Sensitivity of spermatogonia to irradiation varies with age in pre-pubertal ram lambs. Anim Reprod Sci 2018; 193:58-67. [PMID: 29636209 DOI: 10.1016/j.anireprosci.2018.03.037] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2018] [Revised: 03/23/2018] [Accepted: 03/29/2018] [Indexed: 01/15/2023]
Abstract
Although germ cells from donor rams transplanted into irradiated recipient testes have produced donor derived offspring, efficiency is low. Further optimization of recipient irradiation protocols will add precision to the depletion of recipient spermatogonia prior to germ cell transplant. Three irradiation doses (9,12,15 Gy) were administered to ram lambs aged 14 weeks (Group 1) and 20 weeks (Group 2), then testicular biopsies were collected 1, 2 and 3 months after irradiation. At 1 month after irradiation of Group 1, only the largest dose (15 Gy) reduced spermatogonia numbers below 10% of non-irradiated controls, whereas in Group 2 lambs, each irradiation dose reduced spermatogonia below 10% of controls. In both Groups, fewer differentiated germ cells were present in seminiferous tubules compared to controls. At 2 months after irradiation, spermatogonia numbers in both Groups increased more than sixfold to be similar to controls, whereas fewer differentiated germ cells were present in the tubules of both Groups. At 3 months in Group 1, each irradiation dose reduced spermatogonia numbers to <30% of controls and fewer tubules contained differentiated germ cells. Lesser expression of spermatogonial genes, VASA and UCHL-1, was observed in the 15 Gy group. In Group 2, only 12 Gy treated tubules contained fewer spermatogonia. Knowledge of these subtle differences between age groups in the effect of irradiation doses on spermatogonia or differentiated germ cell numbers and the duration of recovery of spermatogonia numbers after irradiation will aid the timing of germ cell transplants into prepubertal recipient lambs.
Collapse
Affiliation(s)
- J Olejnik
- CSIRO Food Futures National Research Flagship, Australia; CSIRO Animal, Food and Health Sciences, F. D. McMaster Laboratory, Armidale, NSW, 2350 Australia; University of New England, Armidale, NSW, 2350, Australia
| | - N Suchowerska
- School of Physics, University of Sydney, NSW, Australia; Faculty of Medicine, University of Sydney, Sydney, NSW, Australia
| | - M Herrid
- CSIRO Food Futures National Research Flagship, Australia
| | - A Jackson
- CSIRO Food Futures National Research Flagship, Australia
| | - M Jackson
- Faculty of Medicine, University of Sydney, Sydney, NSW, Australia
| | - N M Andronicos
- CSIRO Animal, Food and Health Sciences, F. D. McMaster Laboratory, Armidale, NSW, 2350 Australia; University of New England, Armidale, NSW, 2350, Australia
| | - G N Hinch
- University of New England, Armidale, NSW, 2350, Australia
| | - J R Hill
- CSIRO Food Futures National Research Flagship, Australia; University of Queensland, School of Veterinary Science, Gatton, QLD 4343, Queensland, Australia.
| |
Collapse
|
92
|
Higaki S, Todo T, Teshima R, Tooyama I, Fujioka Y, Sakai N, Takada T. Cryopreservation of male and female gonial cells by vitrification in the critically endangered cyprinid honmoroko Gnathopogon caerulescens. Fish Physiol Biochem 2018; 44:503-513. [PMID: 29192358 DOI: 10.1007/s10695-017-0449-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2017] [Accepted: 11/22/2017] [Indexed: 06/07/2023]
Abstract
We investigated the feasibility of cryopreservation of spermatogonia and oogonia in the critically endangered cyprinid honmoroko Gnathopogon caerulescens using slow-cooling (freezing) and rapid-cooling (vitrification) methods. Initially, we examined the testicular cell toxicities and glass-forming properties of the five cryoprotectants: ethylene glycol (EG), glycerol (GC), dimethyl sulfoxide (DMSO), propylene glycol (PG), and 1,3-butylene glycol (BG), and we determined cryoprotectant concentrations that are suitable for freezing and vitrification solutions, respectively. Subsequently, we prepared the freezing solutions of EG, GC, DMSO, PG, and BG at 3, 2, 3, 2, and 2 M and vitrification solutions at 7, 6, 5, 5, and 4 M, respectively. Following the cryopreservation of the testicular cells mainly containing early-stage spermatogenic cells (e.g., spermatogonia and primary spermatocytes), cells were cultured for 7 days and immunochemically stained against germ cell marker protein Vasa. Areas occupied by Vasa-positive cells indicated that vitrification led to better survival of germ cells than the freezing method, and the best result was obtained with 5 M PG, about 50% recovery of germ cells following vitrification. In the case of ovarian cells containing oogonia and stage I, II, and IIIa oocytes, vitrification with 5 M DMSO resulted the best survival of oogonia, with equivalent cell numbers to those cultured without vitrification. The present data suggest that male and female gonial cells of the endangered species G. caerulescens can be efficiently cryopreserved using suitable cryoprotectants for spermatogonia and oogonia, respectively.
Collapse
Affiliation(s)
- Shogo Higaki
- Laboratory of Cell Engineering, Department of Pharmaceutical Sciences, Ritsumeikan University, Nojihigashi 1-1-1, Kusatsu, Shiga, 525-8577, Japan
| | - Takaaki Todo
- Laboratory of Cell Engineering, Department of Pharmaceutical Sciences, Ritsumeikan University, Nojihigashi 1-1-1, Kusatsu, Shiga, 525-8577, Japan
| | - Reiko Teshima
- Laboratory of Cell Engineering, Department of Pharmaceutical Sciences, Ritsumeikan University, Nojihigashi 1-1-1, Kusatsu, Shiga, 525-8577, Japan
| | - Ikuo Tooyama
- Molecular Neuroscience Research Center, Shiga University of Medical Science, Otsu, Shiga, 520-2192, Japan
| | - Yasuhiro Fujioka
- Lake Biwa Museum, Oroshimo 1091, Kusatsu, Shiga, 525-0001, Japan
| | - Noriyoshi Sakai
- Genetic Strains Research Center, National Institute of Genetics, Mishima, Shizuoka, 411-8540, Japan
| | - Tatsuyuki Takada
- Laboratory of Cell Engineering, Department of Pharmaceutical Sciences, Ritsumeikan University, Nojihigashi 1-1-1, Kusatsu, Shiga, 525-8577, Japan.
| |
Collapse
|
93
|
Niedenberger BA, Geyer CB. Advanced immunostaining approaches to study early male germ cell development. Stem Cell Res 2018; 27:162-168. [PMID: 29475796 PMCID: PMC5894494 DOI: 10.1016/j.scr.2018.01.031] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/22/2017] [Revised: 01/12/2018] [Accepted: 01/19/2018] [Indexed: 12/16/2022] Open
Abstract
Mammalian male germ cell development takes place in the testis under the influence of a variety of somatic cells and an incompletely defined paracrine and endocrine influences. Since it is not recapitulated well in vitro, researchers studying spermatogenesis often manipulate the germline by creating transgenic or knockout mice or by administering pharmaceutical agonists/antagonists or inhibitors. The effects of these types of manipulations on germline development can often be determined following microscopic imaging, both of stained and immunostained testis sections. Here, we describe approaches for microscopic analysis of the developing male germline, provide detailed protocols for a variety of immunostaining approaches, and discuss transgenic fluorescent reporter lines for studying the early stages of spermatogenesis.
Collapse
Affiliation(s)
- Bryan A Niedenberger
- East Carolina Diabetes and Obesity Institute East Carolina University, Greenville, NC, USA
| | - Christopher B Geyer
- East Carolina Diabetes and Obesity Institute East Carolina University, Greenville, NC, USA; Brody School of Medicine at East Carolina University, Greenville, NC, USA.
| |
Collapse
|
94
|
Jafari O, Babaei H, Kheirandish R, Samimi AS, Zahmatkesh A. Histomorphometric evaluation of mice testicular tissue following short- and long-term effects of lipopolysaccharide-induced endotoxemia. Iran J Basic Med Sci 2018; 21:47-52. [PMID: 29372036 PMCID: PMC5776436 DOI: 10.22038/ijbms.2017.24415.6083] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Objective(s):: Lipopolysaccharide (LPS)-induced endotoxemia is known to cause male infertility. This study was designed to explore the effects of bacterial LPS on histomorphometric changes of mice testicular tissues. Materials and Methods: In experiment 1, a pilot dose responsive study was performed with mice that were divided into five groups, receiving 36000, 18000, 9000, and 6750 µg/kg body weight (B.W) of LPS or only saline (control). White blood cells (WBC) were observed for 3 days after LPS inoculation. In experiment 2, two groups of mice were treated with 6750 µg/kg B.W of LPS or only saline (control). Five cases from each experimental group were sacrificed at 3, 30, and 60 days after LPS inoculation. Left testes were fixed in Bouin’s solution, and stained for morphometrical assays. Results: Time-course changes of WBC obtained from different doses of LPS-treated mice showed that inoculation of 6750 µg/kg B.W produced a reversible endotoxemia that lasts for 72 hr and so it was used in the second experiment. In experiment 2, during the first 3 days, no significant changes were observed in the evaluated parameters instead of seminiferous tubules diameter. Spermatogenesis, Johnsen’s score, meiotic index, and epithelial height were significantly affected at 30th day. However, complete recovery was only observed for the spermatogenesis at day 60. Interestingly, deleterious effects of LPS on spermatogonia were only seen at 60th day (P<0.05). Conclusion: Endotoxemia induced by LPS has long-term detrimental effects on spermatogonia and later stage germ cells, which are reversible at the next spermatogenic cycle.
Collapse
Affiliation(s)
- Oveis Jafari
- Graduate Student of Veterinary Medicine, Shahid Bahonar University of Kerman, Kerman, Iran
| | - Homayoon Babaei
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Shahid Bahonar University of Kerman, Kerman, Iran
| | - Reza Kheirandish
- Department of Pathobiology, Faculty of Veterinary Medicine, Shahid Bahonar University of Kerman, Kerman, Iran
| | - Amir-Saied Samimi
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Shahid Bahonar University of Kerman, Kerman, Iran
| | - Ali Zahmatkesh
- Graduate Student of Veterinary Medicine, Shahid Bahonar University of Kerman, Kerman, Iran
| |
Collapse
|
95
|
Qasemi-Panahi B, Movahedin M, Moghaddam G, Tajik P, Koruji M, Ashrafi-Helan J, Rafat SA. Isolation and Proliferation of Spermatogonial Cells from Ghezel Sheep. Avicenna J Med Biotechnol 2018; 10:93-97. [PMID: 29849985 PMCID: PMC5960065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
Abstract
BACKGROUND Sheep industry has taken steps toward transforming itself into a more efficient and competitive field. There are many varieties of sheep breeds in the world that each of them serves a useful purpose in the economies of different civilizations. Ghezel sheep is one of the Iranian important breeds that are raised for meat, milk and wool. Field of spermatogonial cell technologies provides tools for genetic improvement of sheep herd and multiple opportunities for research. Spermatogonial cells are the only stem cells capable of transmitting genetic information to future generations. METHODS This study was designed to extend the technique of isolation and in vitro proliferation of spermatogonial cells in Ghezel sheep. RESULTS Isolated cells were characterized further by using specific markers for type A spermatogonia, including PLZF. Also, sertoli cells were characterized by vimentin which is a specific marker for sertoli cells. After 10 days of co-culture, viability rates of the cells was above 94.7%, but after the freezing process the viability rates were 74 percent. CONCLUSION In this study, a standard method for isolation and in vitro proliferation of spermatogonial stem cells in Ghezel sheep was developed.
Collapse
Affiliation(s)
- Babak Qasemi-Panahi
- Department of Animal Science, Faculty of Agriculture, University of Tabriz, Tabriz, Iran,Corresponding author: Babak Qasemi-Panahi, Ph.D., Department of Animal Science, Faculty of Agriculture, University of Tabriz, Tabriz, Iran Tel: +98 9144072650 Fax: +98 41 33356004 E-mail:,
| | - Mansoureh Movahedin
- Department of Anatomy, Faculty of Medical Science, University of Tarbiat Modares, Tehran, Iran
| | - Gholamali Moghaddam
- Department of Animal Science, Faculty of Agriculture, University of Tabriz, Tabriz, Iran
| | - Parviz Tajik
- Department of Theriogenology, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran
| | - Mortaza Koruji
- Department of Anatomy, Faculty of Medical Science, Iran University of Medical Sciences, Tehran, Iran
| | - Javad Ashrafi-Helan
- Department of Pathobiology, Faculty of Veterinary Medicine, University of Tabriz, Tabriz, Iran
| | - Seyed Abbas Rafat
- Department of Animal Science, Faculty of Agriculture, University of Tabriz, Tabriz, Iran
| |
Collapse
|
96
|
Abstract
In this review, we provide an up-to-date compilation of published human spermatogonial markers, with focus on the three nuclear subtypes Adark, Apale and B. In addition, we have extended our recently published list of putative spermatogonial markers with protein expression and RNA-sequencing data from the Human Protein Atlas and supported these by literature evidence. Most importantly, we have put substantial effort in acquiring a comprehensive list of new and potentially interesting markers by refiltering the raw data of 15 published germ cell expression datasets (four human, eleven rodent) and subsequent building of intersections to acquire a robust, cross-species set of spermatogonia-enriched or -specific transcripts.
Collapse
Affiliation(s)
- Kathrein von Kopylow
- Department of Andrology, University Hospital Hamburg-Eppendorf, Hamburg, Germany.
| | | |
Collapse
|
97
|
Sasso-Cerri E, Oliveira B, de Santi F, Beltrame FL, Caneguim BH, Cerri PS. The antineoplastic busulphan impairs peritubular and Leydig cells, and vitamin B 12 stimulates spermatogonia proliferation and prevents busulphan-induced germ cell death. Biomed Pharmacother 2017; 95:1619-1630. [PMID: 28950662 DOI: 10.1016/j.biopha.2017.08.131] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2017] [Revised: 08/21/2017] [Accepted: 08/29/2017] [Indexed: 02/04/2023] Open
Abstract
Busulphan (Bu), an alkylating agent used for bone marrow and spermatogonial stem cell transplantation (SSCT), impairs Sertoli (SC) cells, which are necessary for the spermatogonial stem cell (SSC) homing during transplantation. As Leydig (LC) and peritubular myoid (PMC) cells are essential for SC support and maintenance of spermatogonial niche, we evaluated the impact of Bu on the LC and PMC structural integrity. Vitamin B12 (B12) has demonstrated beneficial effects against drug-induced testicular changes; thus, we also examined whether this vitamin is able to stimulate spermatogonia mitotic activity and prevent Bu-induced germ cell death. Rats received 10mg/kg of Bu in the 1st and 4th days, and daily B12 supplementation during Bu treatment and for 6days after the last injection of Bu (Bu-6d), totaling 10days of treatment. Other animals received the same treatment as Bu-6d, and B12 supplementation (Bu+7dB12) or saline (Bu+7dS) for 7 more days, totaling 17days of treatment. Serum testosterone levels were measured. In the historesin-embedded testis sections, the seminiferous tubule and epithelial areas were measured, and the number of spermatogonia and PMC was quantified. Actin and 17β-HSD6 immunofluorescence was detected, and the number of TUNEL-positive LC and germ cells was computed. In Bu-6d, PMC number reduced, and a weak actin immunoexpression and death in these cells was observed. The testosterone levels reduced, and the interstitial tissue showed a weak 17β-HSD6 immunoexpression and increased number of TUNEL-positive LC. In Bu+7dB12, the number of spermatogonia was higher than in Bu-6d and Bu+7dS, and the number of TUNEL-positive germ cells was significantly lower than in Bu+7dS. Bu exerts a harmful impact on PMC and LC, reducing the testosterone levels. Vitamin B12 prevents significantly Bu-induced germ cell death and stimulates spermatogonia proliferation, being a useful strategy for the enrichment of SSC in vitro and an adjuvant therapy for spermatogenesis recovery in oncologic patients.
Collapse
Affiliation(s)
- Estela Sasso-Cerri
- Department of Morphology, Dental School of São Paulo State University, Araraquara, SP, Brazil.
| | - Bárbara Oliveira
- Department of Morphology, Dental School of São Paulo State University, Araraquara, SP, Brazil
| | - Fabiane de Santi
- Department of Morphology and Genetics, Federal University of São Paulo, São Paulo, SP, Brazil
| | - Flávia L Beltrame
- Department of Morphology and Genetics, Federal University of São Paulo, São Paulo, SP, Brazil
| | - Breno H Caneguim
- Department of Morphology and Genetics, Federal University of São Paulo, São Paulo, SP, Brazil
| | - Paulo S Cerri
- Department of Morphology, Dental School of São Paulo State University, Araraquara, SP, Brazil
| |
Collapse
|
98
|
Higaki S, Kuwata N, Tanaka K, Tooyama I, Fujioka Y, Sakai N, Takada T. Successful vitrification of whole juvenile testis in the critically endangered cyprinid honmoroko (Gnathopogon caerulescens). ZYGOTE 2017; 25:652-61. [PMID: 28835302 DOI: 10.1017/S0967199417000430] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Sperm cryopreservation is a valuable conservation method for endangered fish species. Here we report an easy and efficient cryopreservation method for juvenile whole testis by vitrification and successful sperm production from the vitrified whole testis via in vitro spermatogenesis in the critically endangered cyprinid honmoroko (Gnathopogon caerulescens). Juvenile testis (approximately 10 mm in length and 1 mm in width), consisting predominantly of spermatogonia, were aseptically dissected out and adherent fatty and non-testicular tissues were subsequently removed. Then, the testes were rapidly cooled on a nylon mesh by direct immersion in liquid nitrogen after serial exposures to pretreatment solution (PS), containing 2 M ethylene glycol (EG) and 1 M dimethyl sulfoxide (DMSO), for 20 or 30 min and vitrification solution (VS), containing 3 M EG, 2 M DMSO, and 0.5 M sucrose, for 5, 10, or 20 min. The highest survival rate of testicular cells (84.0%) was obtained from testes vitrified by immersion in PS for 20 min and in VS for 10 min. Spermatogonia were recovered from the vitrified testis by dissociation and cell culture produced many haploid sperm. Fertility and developmental competence were confirmed by in vitro fertilization assays. These results indicate that the vitrification of juvenile whole testis provides a new strategy to preserve the genetic resources of endangered fishes without affecting their reproductive population.
Collapse
|
99
|
McCaig CM, Lin X, Farrell M, Rehain-Bell K, Shakes DC. Germ cell cysts and simultaneous sperm and oocyte production in a hermaphroditic nematode. Dev Biol 2017; 430:362-373. [PMID: 28844904 DOI: 10.1016/j.ydbio.2017.08.010] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2017] [Revised: 07/05/2017] [Accepted: 08/08/2017] [Indexed: 11/29/2022]
Abstract
Studies of gamete development in the self-fertile hermaphrodites of Caenorhabditis elegans have significantly contributed to our understanding of fundamental developmental mechanisms. However, evolutionary transitions from outcrossing males and females to self-fertile hermaphrodites have convergently evolved within multiple nematode sub-lineages, and whether the C. elegans pattern of self-fertile hermaphroditism and gamete development is representative remains largely unexplored. Here we describe a pattern of sperm production in the trioecious (male/female/hermaphrodite) nematode Rhabditis sp. SB347 (recently named Auanema rhodensis) that differs from C. elegans in two striking ways. First, while C. elegans hermaphrodites make a one-time switch from sperm to oocyte production, R. sp. SB347 hermaphrodites continuously produce both sperm and oocytes. Secondly, while C. elegans germ cell proliferation is limited to germline stem cells (GSCs), sperm production in R. sp. SB347 includes an additional population of mitotically dividing cells that are a developmental intermediate between GSCs and fully differentiated spermatocytes. These cells are present in males and hermaphrodites but not females, and exhibit key characteristics of spermatogonia - the mitotic progenitors of spermatocytes in flies and vertebrates. Specifically, they exist outside the stem cell niche, increase germ cell numbers by transit-amplifying divisions, and synchronously proliferate within germ cell cysts. We also discovered spermatogonia in other trioecious Rhabditis species, but not in the male/female species Rhabditis axei or the more distant hermaphroditic Oscheius tipulae. The discovery of simultaneous hermaphroditism and spermatogonia in a lab-cultivatable nematode suggests R. sp. SB347 as a richly informative species for comparative studies of gametogenesis.
Collapse
Affiliation(s)
- Caitlin M McCaig
- Department of Biology, College of William and Mary, Williamsburg, VA 23187, USA
| | - Xiaoxue Lin
- Department of Biology, College of William and Mary, Williamsburg, VA 23187, USA
| | - Maureen Farrell
- Department of Biology, College of William and Mary, Williamsburg, VA 23187, USA
| | - Kathryn Rehain-Bell
- Department of Biology, College of William and Mary, Williamsburg, VA 23187, USA
| | - Diane C Shakes
- Department of Biology, College of William and Mary, Williamsburg, VA 23187, USA.
| |
Collapse
|
100
|
Di Persio S, Saracino R, Fera S, Muciaccia B, Esposito V, Boitani C, Berloco BP, Nudo F, Spadetta G, Stefanini M, de Rooij DG, Vicini E. Spermatogonial kinetics in humans. Development 2017; 144:3430-3439. [PMID: 28827392 DOI: 10.1242/dev.150284] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2017] [Accepted: 08/15/2017] [Indexed: 01/15/2023]
Abstract
The human spermatogonial compartment is essential for daily production of millions of sperm. Despite this crucial role, the molecular signature, kinetic behavior and regulation of human spermatogonia are poorly understood. Using human testis biopsies with normal spermatogenesis and by studying marker protein expression, we have identified for the first time different subpopulations of spermatogonia. MAGE-A4 marks all spermatogonia, KIT marks all B spermatogonia and UCLH1 all Apale-dark (Ap-d) spermatogonia. We suggest that at the start of the spermatogenic lineage there are Ap-d spermatogonia that are GFRA1High, likely including the spermatogonial stem cells. Next, UTF1 becomes expressed, cells become quiescent and GFRA1 expression decreases. Finally, GFRA1 expression is lost and subsequently cells differentiate into B spermatogonia, losing UTF1 and acquiring KIT expression. Strikingly, most human Ap-d spermatogonia are out of the cell cycle and even differentiating type B spermatogonial proliferation is restricted. A novel scheme for human spermatogonial development is proposed that will facilitate further research in this field, the understanding of cases of infertility and the development of methods to increase sperm output.
Collapse
Affiliation(s)
- Sara Di Persio
- Fondazione Pasteur Cenci Bolognetti, Department of Anatomical, Histological, Forensic and Orthopaedic Sciences - Section of Histology and Medical Embryology, Sapienza University of Rome, Rome 00161, Italy
| | - Rossana Saracino
- Fondazione Pasteur Cenci Bolognetti, Department of Anatomical, Histological, Forensic and Orthopaedic Sciences - Section of Histology and Medical Embryology, Sapienza University of Rome, Rome 00161, Italy
| | - Stefania Fera
- Fondazione Pasteur Cenci Bolognetti, Department of Anatomical, Histological, Forensic and Orthopaedic Sciences - Section of Histology and Medical Embryology, Sapienza University of Rome, Rome 00161, Italy
| | - Barbara Muciaccia
- Fondazione Pasteur Cenci Bolognetti, Department of Anatomical, Histological, Forensic and Orthopaedic Sciences - Section of Histology and Medical Embryology, Sapienza University of Rome, Rome 00161, Italy
| | - Valentina Esposito
- Fondazione Pasteur Cenci Bolognetti, Department of Anatomical, Histological, Forensic and Orthopaedic Sciences - Section of Histology and Medical Embryology, Sapienza University of Rome, Rome 00161, Italy
| | - Carla Boitani
- Fondazione Pasteur Cenci Bolognetti, Department of Anatomical, Histological, Forensic and Orthopaedic Sciences - Section of Histology and Medical Embryology, Sapienza University of Rome, Rome 00161, Italy
| | - Bartolomeo P Berloco
- Department of General and Specialistic Surgery 'Paride Stefanini', Sapienza University of Rome, Rome 00161, Italy
| | - Francesco Nudo
- Department of General and Specialistic Surgery 'Paride Stefanini', Sapienza University of Rome, Rome 00161, Italy
| | - Gustavo Spadetta
- Department of Cardiovascular, Respiratory, Nephrological, Anesthesiological and Geriatric Sciences, Sapienza University of Rome, Rome 00161, Italy
| | - Mario Stefanini
- Fondazione Pasteur Cenci Bolognetti, Department of Anatomical, Histological, Forensic and Orthopaedic Sciences - Section of Histology and Medical Embryology, Sapienza University of Rome, Rome 00161, Italy
| | - Dirk G de Rooij
- Fondazione Pasteur Cenci Bolognetti, Department of Anatomical, Histological, Forensic and Orthopaedic Sciences - Section of Histology and Medical Embryology, Sapienza University of Rome, Rome 00161, Italy
| | - Elena Vicini
- Fondazione Pasteur Cenci Bolognetti, Department of Anatomical, Histological, Forensic and Orthopaedic Sciences - Section of Histology and Medical Embryology, Sapienza University of Rome, Rome 00161, Italy
| |
Collapse
|