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Wu P, Yang K, Sun Z, Zhao Y, Manthari RK, Wang J, Cao J. Interleukin-17A knockout or self-recovery alleviated autoimmune reaction induced by fluoride in mouse testis. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 884:163616. [PMID: 37086998 DOI: 10.1016/j.scitotenv.2023.163616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Revised: 04/11/2023] [Accepted: 04/17/2023] [Indexed: 05/03/2023]
Abstract
Fluoride (F) is usually treated as a hazardous material, and F-caused public health problem has attracted global attention. Previous studies demonstrate that interleukin-17A (IL-17A) plays a crucial role in F-elicited autoimmune orchitis and self-recovery reverses F-induced testicular toxicity to some extent, but these basic mechanisms remain unclear. Thus, we established a 180 d F exposure model of wild type (WT) mice and IL-17A knockout mice (C57BL/6 J background), and 60 d & 120 d self-recovery model based on F exposure model of WT mice, and used various techniques like qRT-PCR, western blot, immunohistochemistry and ELISA to further explore the mechanism of F-induced autoimmune reaction, the role of IL-17A in it and the reversibility of F-caused toxicity in testis. The results indicated that F exposure for 180 d caused the decreased sperm quality, the damaged testis histopathology, the enhanced mRNA and protein expression levels of inflammatory cytokines, the changes of autoantibody such as the appearance and increased content of anti-testicular autoantibodies in sera and the autoantibody deposition in testis, the alterations of autoimmune related genes containing the decreased mRNA and protein expressions of AIRE and FOXP3 with an increase of MHCII, and the reduced protein expressions of CTLA4, and the activation of IL-17A signaling cascade like the elevated mRNA and protein expressions of IL-17A, Act1, NF-κB, AP-1 and CEBPβ, and the increased protein expressions of IL-17RC, with a decrease of IκBα. After IL-17A knockout, 29 of 35 F-induced changes were alleviated. In two self-recovery models, all F-caused differences except fluorine concentration in femur were gradually restored in a time-dependent manner. This study concluded that IL-17A knockout or self-recovery attenuated F-induced testicular injury and decrease of sperm quality through alleviating autoimmune reaction which was involved with the activation of IL-17A pathway, the damage of self-tolerance and the enhancement of antigen presentation.
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Affiliation(s)
- Panhong Wu
- Shanxi Key Laboratory of Ecological Animal Science and Environmental Veterinary Medicine, College of Veterinary Medicine, Shanxi Agricultural University, Taigu 030801, Shanxi, PR China
| | - Kaidong Yang
- Shanxi Key Laboratory of Ecological Animal Science and Environmental Veterinary Medicine, College of Veterinary Medicine, Shanxi Agricultural University, Taigu 030801, Shanxi, PR China
| | - Zilong Sun
- Shanxi Key Laboratory of Ecological Animal Science and Environmental Veterinary Medicine, College of Veterinary Medicine, Shanxi Agricultural University, Taigu 030801, Shanxi, PR China
| | - Yangfei Zhao
- Shanxi Key Laboratory of Ecological Animal Science and Environmental Veterinary Medicine, College of Veterinary Medicine, Shanxi Agricultural University, Taigu 030801, Shanxi, PR China
| | - Ram Kumar Manthari
- Shanxi Key Laboratory of Ecological Animal Science and Environmental Veterinary Medicine, College of Veterinary Medicine, Shanxi Agricultural University, Taigu 030801, Shanxi, PR China; Department of Biotechnology, GITAM Institute of Science, GITAM (Deemed to be University), Visakhapatnam 530045, India
| | - Jundong Wang
- Shanxi Key Laboratory of Ecological Animal Science and Environmental Veterinary Medicine, College of Veterinary Medicine, Shanxi Agricultural University, Taigu 030801, Shanxi, PR China.
| | - Jinling Cao
- College of Food Science and Engineering, Shanxi Agricultural University, Taigu 030801, Shanxi, PR China.
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Morawietz J, Körber H, Packeiser EM, Beineke A, Goericke-Pesch S. Insights into Canine Infertility: Apoptosis in Chronic Asymptomatic Orchitis. Int J Mol Sci 2023; 24:ijms24076083. [PMID: 37047053 PMCID: PMC10094104 DOI: 10.3390/ijms24076083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Revised: 03/16/2023] [Accepted: 03/20/2023] [Indexed: 04/14/2023] Open
Abstract
Chronic asymptomatic orchitis (CAO) is a common cause of acquired non-obstructive azoospermia in dogs. To understand the impact and mode of action of apoptosis, we investigated TUNEL, Bax, Bcl-2, Fas/Fas ligand, and caspase 3/8/9 in testicular biopsies of CAO-affected dogs and compared the results to undisturbed spermatogenesis in healthy males (CG). TUNEL+ cells were significantly increased in CAO, correlating with the disturbance of spermatogenesis. Bcl-2, Bax (p < 0.01 each), caspase 9 (p < 0.05), Fas, caspase 8 (p < 0.01 each), and caspase 3 (p < 0.05) were significantly increased at the mRNA level, whereas FasL expression was downregulated. Cleaved caspase 3 staining was sporadic in CAO but not in CG. Sertoli cells, some peritubular (CAO/CG) and interstitial immune cells (CAO) stained Bcl-2+, with significantly more immunopositive cells in both compartments in CAO compared to CG. Bcl-2 and CD20 co-expressing B lymphocytes were encountered interstitially and in CAO occasionally also found intratubally, underlining their contribution to the maintenance of CAO. Our results support the crucial role of the intrinsic and extrinsic apoptotic pathways in the pathophysiology of canine CAO. Autoprotective Bcl-2 expression in Sertoli cells and B lymphocytes seems to be functional, however, thereby also maintaining and promoting the disease by immune cell activation.
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Affiliation(s)
- Judith Morawietz
- Reproductive Unit-Clinic for Small Animals, University of Veterinary Medicine Hannover, Foundation, 30559 Hannover, Germany
| | - Hanna Körber
- Reproductive Unit-Clinic for Small Animals, University of Veterinary Medicine Hannover, Foundation, 30559 Hannover, Germany
| | - Eva-Maria Packeiser
- Reproductive Unit-Clinic for Small Animals, University of Veterinary Medicine Hannover, Foundation, 30559 Hannover, Germany
| | - Andreas Beineke
- Department of Pathology, University of Veterinary Medicine Hannover, Foundation, 30559 Hannover, Germany
| | - Sandra Goericke-Pesch
- Reproductive Unit-Clinic for Small Animals, University of Veterinary Medicine Hannover, Foundation, 30559 Hannover, Germany
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Mechanisms underlying impaired spermatogenic function in orchitis induced by busulfan. Reprod Toxicol 2023; 115:1-7. [PMID: 36372306 DOI: 10.1016/j.reprotox.2022.11.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2022] [Revised: 10/29/2022] [Accepted: 11/08/2022] [Indexed: 11/13/2022]
Abstract
Busulfan is an alkylating agent commonly used in cancer chemotherapy. It is also an ideal agent for preparing transplant recipients of spermatogonial stem cells because of its high efficiency in destroying endogenous germ cells in the testis. However, its toxicity mechanism remains unclear, affecting its clinical use and applications. Based on reports of busulfan causing orchitis and a previous study by our team, this article summarizes the relationship between busulfan and orchitis, cytokines, the blood-testis barrier, and the cytoskeleton, unravels the regulatory pathways and mechanism behind busulfan-induced orchitis, and reveals the molecular mechanism underlying impaired spermatogenic function in orchitis, providing new ideas for the clinical application of busulfan while reducing its testicular toxicity.
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Wu P, Sun Z, Lv X, Pei X, Manthari RK, Wang J. Fluoride Induces Autoimmune Orchitis Involved with Enhanced IL-17A Secretion in Mice Testis. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:13333-13343. [PMID: 31703480 DOI: 10.1021/acs.jafc.9b05789] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Fluoride (F) widely exists in the water and food. Recent studies reported that F induced testicular toxicity via inflammation reaction. This study was aimed to explore the mechanism of F-induced inflammation in testis. 100 healthy male mice (BALB/cJ strain) were randomly divided into five groups including: control, experimental autoimmune orchitis (EAO), and three F groups (25, 50, and 100 mg/L sodium fluoride (NaF)). After 150 d, the results showed a significant increase in testicular cytokines levels including of IL-17A, IL-6, IFN-γ, and TNF-α in NaF and EAO groups compared with control group. Interestingly, the presence of specific antisperm autoantibodies in antitesticular autoantibodies and the notable recruitment of immunocyte (T cells and dendritic cells) were also observed in NaF and EAO groups. In addition, findings showed that in NaF and EAO groups macrophages and T cells both significantly secreted IL-17A, and the protein and mRNA levels of cytokines (IL-6 and TGF-β) were significantly increased. From these results, it can be concluded that autoimmune orchitis and IL-17A are implicated in F-induced testicular inflammation.
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Affiliation(s)
- Panhong Wu
- Shanxi Key Laboratory of Ecological Animal Science and Environmental Veterinary Medicine, College of Animal Science and Veterinary Medicine , Shanxi Agricultural University , Taigu , Shanxi 030801 , China
| | - Zilong Sun
- Shanxi Key Laboratory of Ecological Animal Science and Environmental Veterinary Medicine, College of Animal Science and Veterinary Medicine , Shanxi Agricultural University , Taigu , Shanxi 030801 , China
| | - Xiaoqian Lv
- Shanxi Key Laboratory of Ecological Animal Science and Environmental Veterinary Medicine, College of Animal Science and Veterinary Medicine , Shanxi Agricultural University , Taigu , Shanxi 030801 , China
| | - Xuejing Pei
- Shanxi Key Laboratory of Ecological Animal Science and Environmental Veterinary Medicine, College of Animal Science and Veterinary Medicine , Shanxi Agricultural University , Taigu , Shanxi 030801 , China
| | - Ram Kumar Manthari
- Shanxi Key Laboratory of Ecological Animal Science and Environmental Veterinary Medicine, College of Animal Science and Veterinary Medicine , Shanxi Agricultural University , Taigu , Shanxi 030801 , China
| | - Jundong Wang
- Shanxi Key Laboratory of Ecological Animal Science and Environmental Veterinary Medicine, College of Animal Science and Veterinary Medicine , Shanxi Agricultural University , Taigu , Shanxi 030801 , China
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Hu Y, Wang Y, Yan T, Feng D, Ba Y, Zhang H, Zhu J, Cheng X, Cui L, Huang H. N-acetylcysteine alleviates fluoride-induced testicular apoptosis by modulating IRE1α/JNK signaling and nuclear Nrf2 activation. Reprod Toxicol 2019; 84:98-107. [PMID: 30633982 DOI: 10.1016/j.reprotox.2019.01.001] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Revised: 12/10/2018] [Accepted: 01/03/2019] [Indexed: 12/12/2022]
Abstract
We previously investigated excessive fluoride exposure elicited intracellular endoplasmic reticulum (ER) stress and led to Sertoli cells dysfunction in vitro. However, the mechanisms underlying fluoride-mediated male reproductive damage in vivo remain largely unknown. Considerable evidence has now revealed ER stress is closely linked with testicular oxidative damage. Hence, we aimed to explore whether ER stress signaling was involved in the testicular protective effects of antioxidant N-acetylcysteine (NAC) against testicular apoptosis induced by fluoride. Male SD rats were oral gavaged with sodium fluoride (NaF) for 7 weeks to induce fluorosis. The animals were pretreatment with or without NAC (150 mg/Bw•d). Our results demonstrated that sub-chronic NaF exposure triggered testicular apoptosis and sex hormonal disturbance in pituitary-testicular (PT) axis, promoted oxidative stress and the expression of ER stress mediators. Antioxidant NAC, however, prevented NaF-induced testicular apoptosis accompanied by activating Nrf2-mediated antioxidant potential. Simultaneously, NAC pretreatment downregulated XBP1 splicing, reduced JNK phosphorylation and further blocked cleavage of caspase-3, all these might contribute to the inhibition of testicular cell apoptosis. Collectively, the present results suggested that prolonged administration of NAC preserved testicular function and normalized sex hormonal disruption induced by NaF via the inhibition of Nrf2-associated oxidative damage and Ire1α-JNK-mediated apoptosis in rat testis.
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Affiliation(s)
- Yazhen Hu
- College of Public Health, Zhengzhou University, No. 100 Kexue Avenue, Zhengzhou, 450001, Henan, PR China
| | - Yawei Wang
- College of Public Health, Zhengzhou University, No. 100 Kexue Avenue, Zhengzhou, 450001, Henan, PR China
| | - Ting Yan
- College of Public Health, Zhengzhou University, No. 100 Kexue Avenue, Zhengzhou, 450001, Henan, PR China
| | - Demin Feng
- College of Public Health, Zhengzhou University, No. 100 Kexue Avenue, Zhengzhou, 450001, Henan, PR China
| | - Yue Ba
- College of Public Health, Zhengzhou University, No. 100 Kexue Avenue, Zhengzhou, 450001, Henan, PR China
| | - Huizhen Zhang
- College of Public Health, Zhengzhou University, No. 100 Kexue Avenue, Zhengzhou, 450001, Henan, PR China
| | - Jingyuan Zhu
- College of Public Health, Zhengzhou University, No. 100 Kexue Avenue, Zhengzhou, 450001, Henan, PR China
| | - Xuemin Cheng
- College of Public Health, Zhengzhou University, No. 100 Kexue Avenue, Zhengzhou, 450001, Henan, PR China
| | - Liuxin Cui
- College of Public Health, Zhengzhou University, No. 100 Kexue Avenue, Zhengzhou, 450001, Henan, PR China
| | - Hui Huang
- College of Public Health, Zhengzhou University, No. 100 Kexue Avenue, Zhengzhou, 450001, Henan, PR China.
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Terayama H, Hirai S, Naito M, Qu N, Katagiri C, Nagahori K, Hayashi S, Sasaki H, Moriya S, Hiramoto M, Miyazawa K, Hatayama N, Li ZL, Sakabe K, Matsushita M, Itoh M. Specific autoantigens identified by sera obtained from mice that are immunized with testicular germ cells alone. Sci Rep 2016; 6:35599. [PMID: 27752123 PMCID: PMC5067510 DOI: 10.1038/srep35599] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2015] [Accepted: 10/04/2016] [Indexed: 02/08/2023] Open
Abstract
There are various autoimmunogenic antigens (AIs) in testicular germ cells (TGCs) recognized as foreign by the body's immune system. However, there is little information of TGC-specific AIs being available. The aim of this study is to identify TGC-specific AIs. We have previously established that immunization using viable syngeneic TGC can also induce murine experimental autoimmune orchitis (EAO) without using any adjuvant. This study is to identify TGC-specific AIs by TGC liquid chromatography-tandem mass spectrometry analysis, followed by two-dimensional gel electrophoresis that reacted with serum IgG from EAO mice. In this study, we identified 11 TGC-specific AIs that reacted with serum from EAO mice. Real-time RT-PCR analysis showed that the mRNA expressions of seven TGC-specific AIs were significantly higher in only mature testis compared to other organs. Moreover, the recombinant proteins of identified 10 (except unnamed protein) TGC-specific AIs were created by using human embryonic kidney 293 (HEK293) cells and these antigencities were reconfirmed by Western blot using EAO serum reaction. These results indicated Atp6v1a, Hsc70t, Fbp1 and Dazap1 were candidates for TGC-specific AIs. Identification of these AIs will facilitate new approaches for understanding infertility and cancer pathogenesis and may provide a basis for the development of novel therapies.
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Affiliation(s)
- Hayato Terayama
- Department of Anatomy, Division of Basic Medical Science, Tokai University School of Medicine, Kanagawa, Japan.,Department of Anatomy, Tokyo Medical University, Tokyo, Japan
| | - Shuichi Hirai
- Department of Anatomy, Tokyo Medical University, Tokyo, Japan.,Department of Anatomy, Aichi Medical University, Aichi, Japan
| | - Munekazu Naito
- Department of Anatomy, Tokyo Medical University, Tokyo, Japan.,Department of Anatomy, Aichi Medical University, Aichi, Japan
| | - Ning Qu
- Department of Anatomy, Tokyo Medical University, Tokyo, Japan
| | - Chiaki Katagiri
- Department of Molecular and Cellular Physiology, Graduate School of Medicine, University of the Ryukyus, Okinawa, Japan
| | - Kenta Nagahori
- Department of Anatomy, Tokyo Medical University, Tokyo, Japan
| | - Shogo Hayashi
- Department of Anatomy, Tokyo Medical University, Tokyo, Japan
| | - Hiraku Sasaki
- Department of Health Science, School of Health and Sports Science, Juntendo University, Chiba, Japan
| | - Shota Moriya
- Department of Biochemistry, Tokyo Medical University, Tokyo, Japan
| | - Masaki Hiramoto
- Department of Biochemistry, Tokyo Medical University, Tokyo, Japan
| | - Keisuke Miyazawa
- Department of Biochemistry, Tokyo Medical University, Tokyo, Japan
| | - Naoyuki Hatayama
- Department of Anatomy, Tokyo Medical University, Tokyo, Japan.,Department of Anatomy, Aichi Medical University, Aichi, Japan
| | - Zhong-Lian Li
- Department of Anatomy, Tokyo Medical University, Tokyo, Japan
| | - Kou Sakabe
- Department of Anatomy, Division of Basic Medical Science, Tokai University School of Medicine, Kanagawa, Japan
| | - Masayuki Matsushita
- Department of Molecular and Cellular Physiology, Graduate School of Medicine, University of the Ryukyus, Okinawa, Japan
| | - Masahiro Itoh
- Department of Anatomy, Tokyo Medical University, Tokyo, Japan
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Menoprogen, a TCM Herbal Formula for Menopause, Increases Endogenous E2 in an Aged Rat Model of Menopause by Reducing Ovarian Granulosa Cell Apoptosis. BIOMED RESEARCH INTERNATIONAL 2016; 2016:2574637. [PMID: 26981526 PMCID: PMC4769746 DOI: 10.1155/2016/2574637] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/09/2015] [Revised: 01/12/2016] [Accepted: 01/17/2016] [Indexed: 01/15/2023]
Abstract
The effect of Menoprogen (MPG) on ovarian granulosa cell (GC) apoptosis was investigated in vitro and in vivo in an aged rat model of menopause. Intragastric administration of Menoprogen or estradiol valerate to 14-month-old senile female rats for eight weeks increased plasma E2 levels, as well as the weight of both ovarian and uterine tissues. Flow cytometric (FCM) analysis of isolated GCs from MPG-treated aged rats showed reductions in the G0/G1 ratio and apoptotic peaks. Isolated GCs also exhibited an increase in cell size and the number of cytoplastic organelles and intracellular gap junctions, the reappearance of secretory granules, and a lack of apoptotic bodies as determined by TEM. Results from a TdT-mediated dUTP nick end-labeling (TUNEL) assay revealed a reduction in TUNEL-positive GCs after MPG treatment. Immunohistochemical analysis showed a downregulation of proapoptotic Bax proteins and an upregulation of antiapoptotic Bcl-2 proteins. The addition of MPG-medicated serum to the media of cultured GCs also reduced cadmium chloride-induced apoptosis and downregulated caspase-3 protein expression. This work demonstrates that Menoprogen inhibits GC apoptosis in aged female rats and thereby increases E2 production. This represents a novel mechanism of action for this herbal medicine in the treatment of menopausal symptoms.
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Liu J, Pan T, You X, Xu Y, Liang J, Limpanont Y, Sun X, Okanurak K, Zheng H, Wu Z, Lv Z. SjCa8, a calcium-binding protein from Schistosoma japonicum, inhibits cell migration and suppresses nitric oxide release of RAW264.7 macrophages. Parasit Vectors 2015; 8:513. [PMID: 26445908 PMCID: PMC4597762 DOI: 10.1186/s13071-015-1119-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2015] [Accepted: 09/28/2015] [Indexed: 11/10/2022] Open
Abstract
Background Schistosomiasis is considered second only to malaria as the most devastating parasitic disease in tropical countries. Schistosome cercariae invade the host by penetrating the skin and migrate though the lungs and portal circulation to their final destination in the hepatic portal system and eventually the mesenteric veins. Previous studies have shown that the cytotoxic pathways that target schistosomulum in the lung-stage involve nitric oxide (NO) produced by macrophages. By contrast, skin-stage schistosomulas can evade clearance, indicating that they might be freed from macrophage NO-mediated cytotoxicity to achieve immune evasion; however, the critical molecules and mechanisms involved remain unknown. Methods Recombinant SjCa8 (rSjCa8), an 8-kDa calcium-binding protein that is stage-specifically expressed in cercaria and early skin-stage schistosomulas of Schistosoma japonicum, was incubated with mouse RAW264.7 macrophages. Effects on macrophage proliferation were determined using Cell Counting Kit-8. Next, transwell assay was carried out to further investigate the role of rSjCa8 in macrophage migration. The effects of rSjCa8 on macrophage apoptosis were evaluated using confocal microscopy and flow cytometry. Additional impacts of rSjCa8 on NO release by lipopolysaccharide (LPS)-stimulated macrophages as well as the underlying mechanisms were explored using fluorescent probe, nitric oxide signaling pathway microarray, quantitative real-time PCR, mutagenesis, and neutralizing antibody approaches. Results rSjCa8 exhibited a striking inhibitory effect on macrophage migration, but did not markedly increase cell proliferation or apoptosis. Additionally, rSjCa8 potently inhibited NO release by LPS-stimulated macrophages in a dose- and time-dependent manner, and the inhibitory mechanism was closely associated with intracellular Ca2+ levels, the up-regulation of catalase expression, and the down-regulation of the expression of 47 genes, including Myc, Gadd45a, Txnip, Fas, Sod2, Nos2, and Hmgb1. Vaccination with rSjCa8 increased NO concentration in the challenging skin area of infected mice and reduced the number of migrated schistosomula after skin penetration by cercariae. Conclusions Our findings indicate that SjCa8 might be a novel molecule that plays a critical role in immune evasion by S. japonicum cercaria during the process of skin penetration. The inhibitory impacts of rSjCa8 on macrophage migration and [Ca2+]i-dependent NO release suggest it might represent a novel vaccine candidate and chemotherapeutic target for the prevention and treatment of schistosomiasis. Electronic supplementary material The online version of this article (doi:10.1186/s13071-015-1119-4) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Ji Liu
- Zhongshan School of Medicine, Sun Yat-sen University, 74 2nd Zhongshan Road, Guangzhou, 510080, China. .,Key Laboratory for Tropical Diseases Control of Ministry of Education, Sun Yat-sen University, Guangzhou, 510080, China.
| | - Tong Pan
- Zhongshan School of Medicine, Sun Yat-sen University, 74 2nd Zhongshan Road, Guangzhou, 510080, China. .,Key Laboratory for Tropical Diseases Control of Ministry of Education, Sun Yat-sen University, Guangzhou, 510080, China.
| | - Xu You
- Zhongshan School of Medicine, Sun Yat-sen University, 74 2nd Zhongshan Road, Guangzhou, 510080, China. .,Key Laboratory for Tropical Diseases Control of Ministry of Education, Sun Yat-sen University, Guangzhou, 510080, China.
| | - Yiyue Xu
- Zhongshan School of Medicine, Sun Yat-sen University, 74 2nd Zhongshan Road, Guangzhou, 510080, China. .,Key Laboratory for Tropical Diseases Control of Ministry of Education, Sun Yat-sen University, Guangzhou, 510080, China.
| | - Jinyi Liang
- Zhongshan School of Medicine, Sun Yat-sen University, 74 2nd Zhongshan Road, Guangzhou, 510080, China. .,Key Laboratory for Tropical Diseases Control of Ministry of Education, Sun Yat-sen University, Guangzhou, 510080, China.
| | - Yanin Limpanont
- Department of Social and Environmental Medicine, Faculty of Tropical Medicine, Mahidol University, Bangkok, 10400, Thailand.
| | - Xi Sun
- Zhongshan School of Medicine, Sun Yat-sen University, 74 2nd Zhongshan Road, Guangzhou, 510080, China. .,Key Laboratory for Tropical Diseases Control of Ministry of Education, Sun Yat-sen University, Guangzhou, 510080, China.
| | - Kamolnetr Okanurak
- Department of Social and Environmental Medicine, Faculty of Tropical Medicine, Mahidol University, Bangkok, 10400, Thailand.
| | - Huanqin Zheng
- Zhongshan School of Medicine, Sun Yat-sen University, 74 2nd Zhongshan Road, Guangzhou, 510080, China. .,Key Laboratory for Tropical Diseases Control of Ministry of Education, Sun Yat-sen University, Guangzhou, 510080, China.
| | - Zhongdao Wu
- Zhongshan School of Medicine, Sun Yat-sen University, 74 2nd Zhongshan Road, Guangzhou, 510080, China. .,Key Laboratory for Tropical Diseases Control of Ministry of Education, Sun Yat-sen University, Guangzhou, 510080, China.
| | - Zhiyue Lv
- Zhongshan School of Medicine, Sun Yat-sen University, 74 2nd Zhongshan Road, Guangzhou, 510080, China. .,Key Laboratory for Tropical Diseases Control of Ministry of Education, Sun Yat-sen University, Guangzhou, 510080, China.
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de Melo Bernardo A, Heeren AM, van Iperen L, Fernandes MG, He N, Anjie S, Noce T, Ramos ES, de Sousa Lopes SMC. Meiotic wave adds extra asymmetry to the development of female chicken gonads. Mol Reprod Dev 2015; 82:774-86. [PMID: 26096940 PMCID: PMC5034815 DOI: 10.1002/mrd.22516] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2014] [Accepted: 06/14/2015] [Indexed: 11/06/2022]
Abstract
Development of female gonads in the chicken is asymmetric. This asymmetry affects gene expression, morphology, and germ cell development; consequently only the left ovary develops into a functional organ, whereas the right ovary remains vestigial. In males, on the other hand, both gonads develop into functional testes. Here, we revisited the development of asymmetric traits in female (and male) chicken gonads between Hamburger Hamilton stage 16 (HH16) and hatching. At HH16, primordial germ cells migrated preferentially to the left gonad, accumulating in the left coelomic hinge between the gut mesentery and developing gonad in both males and females. Using the meiotic markers SYCP3 and phosphorylated H2AFX, we identified a previously undescribed, pronounced asymmetryc meiotic progression in the germ cells located in the central, lateral, and extreme cortical regions of the left female gonad from HH38 until hatching. Moreover, we observed that--in contrast to the current view--medullary germ cells are not apoptotic, but remain arrested in pre-leptotene until hatching. In addition to the systematic analysis of the asymmetric distribution of germ cells in female chicken gonads, we propose an updated model suggesting that the localization of germ cells--in the left or right gonad; in the cortex or medulla of the left gonad; and in the central part or the extremities of the left cortex--has direct consequences for their development and participation in adult reproduction.
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Affiliation(s)
- Ana de Melo Bernardo
- Department of Anatomy and Embryology, Leiden University Medical Centre, Leiden, the Netherlands
| | - A Marijne Heeren
- Department of Anatomy and Embryology, Leiden University Medical Centre, Leiden, the Netherlands
| | - Liesbeth van Iperen
- Department of Anatomy and Embryology, Leiden University Medical Centre, Leiden, the Netherlands
| | - Maria Gomes Fernandes
- Department of Anatomy and Embryology, Leiden University Medical Centre, Leiden, the Netherlands
| | - Nannan He
- Department of Anatomy and Embryology, Leiden University Medical Centre, Leiden, the Netherlands
| | - Stafford Anjie
- Department of Anatomy and Embryology, Leiden University Medical Centre, Leiden, the Netherlands
| | - Toshiaki Noce
- Department of Physiology, Keio University School of Medicine, Tokyo, Japan
| | - Ester Silveira Ramos
- Department of Genetics, Ribeirao Preto Medical School, University of Sao Paulo, Sao Paulo, Brazil
| | - Susana M Chuva de Sousa Lopes
- Department of Anatomy and Embryology, Leiden University Medical Centre, Leiden, the Netherlands.,Department for Reproductive Medicine, Ghent University Hospital, Ghent, Belgium
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11
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Musha M, Hirai S, Naito M, Terayama H, Qu N, Hatayama N, Itoh M. The effects of adjuvants on autoimmune responses against testicular antigens in mice. J Reprod Dev 2012; 59:139-44. [PMID: 23257732 PMCID: PMC3934194 DOI: 10.1262/jrd.2012-121] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Experimental autoimmune orchitis (EAO) is a model of immunologic male infertility and
pathologically characterized by lymphocytic inflammation, which causes breakdown of the
testicular immune privilege with spermatogenic disturbance. Generally, murine EAO is
induced by immunization with testicular homogenate (TH) from the testes of donor mice +
complete Freund's adjuvant (CFA) + Bordetella pertussigens (BP), and it
has been considered that treatment with these two adjuvants is required to enhance the
immune response against testicular antigens. However, there remains a possibility that CFA
and BP may affect autoimmune responses against the testicular antigens without TH. In the
present study, we examined this possibility using real-time RT-PCR, Western blotting and
immunohistochemical staining. The results demonstrated that immunization with TH in
combination with CFA and BP evoked more severe EAO than that with only TH. Real-time
RT-PCR analyses revealed that Fas mRNA expression in TH+CFA+BP-induced EAO was
significantly higher than that in TH-induced EAO. Interestingly, IL-6 mRNA expression
dramatically increased in TH+CFA+BP-induced EAO; however, no apparent change in IL-6 mRNA
expression occurred in TH-induced EAO. It was also noted that treatment with CFA and BP
alone augmented autoimmune reactions against some testicular autoantigens. These results
indicates that these adjuvants are helpful in evoking severe EAO, and treatment with the
adjuvants alone can evoke autoimmune reactions against some testicular autoantigens
despite the use of no TH.
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Experimental autoimmune orchitis as a model of immunological male infertility. Med Mol Morphol 2012; 45:185-9. [DOI: 10.1007/s00795-012-0587-2] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2012] [Accepted: 06/26/2012] [Indexed: 10/27/2022]
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