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Liu K, Zhao X, Guo M, Zhu J, Li D, Ding J, Han X, Wu J. Microcystin-leucine arginine (MC-LR) induces mouse ovarian inflammation by promoting granulosa cells to produce inflammatory cytokine via activation of cGAS-STING signaling. Toxicol Lett 2022; 358:6-16. [PMID: 35032610 DOI: 10.1016/j.toxlet.2022.01.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Revised: 12/07/2021] [Accepted: 01/11/2022] [Indexed: 12/24/2022]
Abstract
Early experimental studies have demonstrated that microcystin-leucine arginine (MC-LR) is able to induce multiple organ damage. Female reproductive disorders caused by MC-LR have attracted increased attention in recent years. However, the underlying mechanisms of female reproductive malfunctions are not yet fully understood. Our previous study confirmed that MC-LR could enter mice ovary, induce apoptosis of ovarian granulosa cell and lead to follicular atresia. Research shows that ovary inflammation is positively related to the decline of female reproductive function. This study was aimed to find out the relationship between inflammation response and ovarian injury caused by MC-LR. MC-LR were administrated at 0, 7.5, 22.5 and 45 µg/kg for two weeks by intraperitoneal injection in female BALB/c mice. Histopathological analysis of ovary was performed. We found that MC-LR exposure induced inflammation response and fibrosis in ovary. In the present study, we observed that MC-LR could enter ovary and was mainly distributed in mGCs (mouse ovarian granulosa cells), but not in the theca-interstitial cells. We isolated and cultured mGCs with different concentrations of MC-LR at 0, 0.01, 0.1, 1 and 10 µM. MC-LR exposure caused mitochondrial DNA (mtDNA) leakage which was detected by qPCR andimmunofluorescence staining. Subsequently, mtDNA leakage activated cGAS-STING signaling, leading to elevated production of inflammatory cytokines TNF-α in mGCs.Diffusion of TNF-α in ovary resulted in inflammatory cell infiltration and interstitial cell proliferation. Ovarian inflammation provides a new perspective to explore the underlying mechanisms associated with MC-LR-induced female reproductive dysfunction.
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Affiliation(s)
- Kunyang Liu
- Immunology and Reproduction Biology Laboratory & State Key Laboratory of Analytical Chemistry for Life Science, Medical School, Nanjing University, Nanjing, Jiangsu 210093, China; Jiangsu Key Laboratory of Molecular Medicine, Nanjing University, Nanjing, Jiangsu 210093, China
| | - Xiaonan Zhao
- Immunology and Reproduction Biology Laboratory & State Key Laboratory of Analytical Chemistry for Life Science, Medical School, Nanjing University, Nanjing, Jiangsu 210093, China; Jiangsu Key Laboratory of Molecular Medicine, Nanjing University, Nanjing, Jiangsu 210093, China
| | - Meihong Guo
- Immunology and Reproduction Biology Laboratory & State Key Laboratory of Analytical Chemistry for Life Science, Medical School, Nanjing University, Nanjing, Jiangsu 210093, China; Jiangsu Key Laboratory of Molecular Medicine, Nanjing University, Nanjing, Jiangsu 210093, China
| | - Jinling Zhu
- Immunology and Reproduction Biology Laboratory & State Key Laboratory of Analytical Chemistry for Life Science, Medical School, Nanjing University, Nanjing, Jiangsu 210093, China; Jiangsu Key Laboratory of Molecular Medicine, Nanjing University, Nanjing, Jiangsu 210093, China
| | - Dongmei Li
- Immunology and Reproduction Biology Laboratory & State Key Laboratory of Analytical Chemistry for Life Science, Medical School, Nanjing University, Nanjing, Jiangsu 210093, China; Jiangsu Key Laboratory of Molecular Medicine, Nanjing University, Nanjing, Jiangsu 210093, China
| | - Jie Ding
- Immunology and Reproduction Biology Laboratory & State Key Laboratory of Analytical Chemistry for Life Science, Medical School, Nanjing University, Nanjing, Jiangsu 210093, China; Jiangsu Key Laboratory of Molecular Medicine, Nanjing University, Nanjing, Jiangsu 210093, China
| | - Xiaodong Han
- Immunology and Reproduction Biology Laboratory & State Key Laboratory of Analytical Chemistry for Life Science, Medical School, Nanjing University, Nanjing, Jiangsu 210093, China; Jiangsu Key Laboratory of Molecular Medicine, Nanjing University, Nanjing, Jiangsu 210093, China.
| | - Jiang Wu
- Immunology and Reproduction Biology Laboratory & State Key Laboratory of Analytical Chemistry for Life Science, Medical School, Nanjing University, Nanjing, Jiangsu 210093, China; Jiangsu Key Laboratory of Molecular Medicine, Nanjing University, Nanjing, Jiangsu 210093, China.
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Tomac J, Mazor M, Lisnić B, Golemac M, Kveštak D, Bralić M, Bilić Zulle L, Brinkmann MM, Dölken L, Reinert LS, Paludan SR, Krmpotić A, Jonjić S, Juranić Lisnić V. Viral infection of the ovaries compromises pregnancy and reveals innate immune mechanisms protecting fertility. Immunity 2021; 54:1478-1493.e6. [PMID: 34015257 DOI: 10.1016/j.immuni.2021.04.020] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2020] [Revised: 11/29/2020] [Accepted: 04/16/2021] [Indexed: 12/16/2022]
Abstract
Viral infections during pregnancy are a considerable cause of adverse outcomes and birth defects, and the underlying mechanisms are poorly understood. Among those, cytomegalovirus (CMV) infection stands out as the most common intrauterine infection in humans, putatively causing early pregnancy loss. We employed murine CMV as a model to study the consequences of viral infection on pregnancy outcome and fertility maintenance. Even though pregnant mice successfully controlled CMV infection, we observed highly selective, strong infection of corpus luteum (CL) cells in their ovaries. High infection densities indicated complete failure of immune control in CL cells, resulting in progesterone insufficiency and pregnancy loss. An abundance of gap junctions, absence of vasculature, strong type I interferon (IFN) responses, and interaction of innate immune cells fully protected the ovarian follicles from viral infection. Our work provides fundamental insights into the effect of CMV infection on pregnancy loss and mechanisms protecting fertility.
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Affiliation(s)
- Jelena Tomac
- Department of Histology and Embryology, University of Rijeka, Faculty of Medicine, B. Branchetta 20, 51000 Rijeka, Croatia
| | - Marija Mazor
- Center for Proteomics, University of Rijeka, Faculty of Medicine, B. Branchetta 20, 51000 Rijeka, Croatia
| | - Berislav Lisnić
- Department of Histology and Embryology, University of Rijeka, Faculty of Medicine, B. Branchetta 20, 51000 Rijeka, Croatia; Center for Proteomics, University of Rijeka, Faculty of Medicine, B. Branchetta 20, 51000 Rijeka, Croatia
| | - Mijo Golemac
- Department of Histology and Embryology, University of Rijeka, Faculty of Medicine, B. Branchetta 20, 51000 Rijeka, Croatia
| | - Daria Kveštak
- Department of Histology and Embryology, University of Rijeka, Faculty of Medicine, B. Branchetta 20, 51000 Rijeka, Croatia
| | - Marina Bralić
- Department of Histology and Embryology, University of Rijeka, Faculty of Medicine, B. Branchetta 20, 51000 Rijeka, Croatia
| | - Lidija Bilić Zulle
- Clinical Hospital Rijeka, University of Rijeka, B. Branchetta 20, 51000 Rijeka, Croatia
| | - Melanie M Brinkmann
- Viral Immune Modulation Research Group, Helmholtz Centre for Infection Research, 38124 Braunschweig, Germany; Institute of Genetics, Technische Universität Braunschweig, 38106 Braunschweig, Germany
| | - Lars Dölken
- Institute for Virology and Immunobiology, Julius-Maximilians-Universität Würzburg, 97080 Würzburg, Germany; Helmholtz Institute for RNA-based Infection Research (HIRI), Helmholtz-Centre for Infection Research, 97080 Würzburg, Germany
| | - Line S Reinert
- Department of Biomedicine, Aarhus University, 8000 Aarhus, Denmark
| | - Soren R Paludan
- Department of Biomedicine, Aarhus University, 8000 Aarhus, Denmark
| | - Astrid Krmpotić
- Department of Histology and Embryology, University of Rijeka, Faculty of Medicine, B. Branchetta 20, 51000 Rijeka, Croatia
| | - Stipan Jonjić
- Department of Histology and Embryology, University of Rijeka, Faculty of Medicine, B. Branchetta 20, 51000 Rijeka, Croatia; Center for Proteomics, University of Rijeka, Faculty of Medicine, B. Branchetta 20, 51000 Rijeka, Croatia.
| | - Vanda Juranić Lisnić
- Department of Histology and Embryology, University of Rijeka, Faculty of Medicine, B. Branchetta 20, 51000 Rijeka, Croatia; Center for Proteomics, University of Rijeka, Faculty of Medicine, B. Branchetta 20, 51000 Rijeka, Croatia.
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Tian M, Wang X, Sun J, Lin W, Chen L, Liu S, Wu X, Shi L, Xu P, Cai X, Wang X. IRF3 prevents colorectal tumorigenesis via inhibiting the nuclear translocation of β-catenin. Nat Commun 2020; 11:5762. [PMID: 33188184 PMCID: PMC7666182 DOI: 10.1038/s41467-020-19627-7] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2019] [Accepted: 10/14/2020] [Indexed: 12/19/2022] Open
Abstract
Occurrence of Colorectal cancer (CRC) is relevant with gut microbiota. However, role of IRF3, a key signaling mediator in innate immune sensing, has been barely investigated in CRC. Here, we unexpectedly found that the IRF3 deficient mice are hyper-susceptible to the development of intestinal tumor in AOM/DSS and Apcmin/+ models. Genetic ablation of IRF3 profoundly promotes the proliferation of intestinal epithelial cells via aberrantly activating Wnt signaling. Mechanically, IRF3 in resting state robustly associates with the active β-catenin in the cytoplasm, thus preventing its nuclear translocation and cell proliferation, which can be relieved upon microbe-induced activation of IRF3. In accordance, the survival of CRC is clinically correlated with the expression level of IRF3. Therefore, our study identifies IRF3 as a negative regulator of the Wnt/β-catenin pathway and a potential prognosis marker for Wnt-related tumorigenesis, and describes an intriguing link between gut microbiota and CRC via the IRF3-β-catenin axis.
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Affiliation(s)
- Miao Tian
- Institute of Immunology and Bone Marrow Transplantation Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, 310003, Hangzhou, China
| | - Xiumei Wang
- Institute of Immunology and Bone Marrow Transplantation Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, 310003, Hangzhou, China
| | - Jihong Sun
- Department of Radiology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, 310016, Hangzhou, China
| | - Wenlong Lin
- Institute of Immunology and Bone Marrow Transplantation Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, 310003, Hangzhou, China
| | - Lumin Chen
- Department of Radiology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, 310016, Hangzhou, China
| | - Shengduo Liu
- The MOE Key Laboratory of Biosystems Homeostasis & Protection and Innovation Center for Cell Signaling Network, Life Sciences Institute, Zhejiang University, 310058, Hangzhou, China
| | - Ximei Wu
- Department of Pharmacology, School of Medicine, Zhejiang University, 310058, Hangzhou, Zhejiang, China
| | - Liyun Shi
- Department of Immunology and Medical Microbiology, Nanjing University of Chinese Medicine, 210046, Nanjing, China
| | - Pinglong Xu
- The MOE Key Laboratory of Biosystems Homeostasis & Protection and Innovation Center for Cell Signaling Network, Life Sciences Institute, Zhejiang University, 310058, Hangzhou, China
| | - Xiujun Cai
- Department of General Surgery, Innovation Center for Minimally Invasive Techniques and Devices, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 310016, Hangzhou, China.
| | - Xiaojian Wang
- Institute of Immunology and Bone Marrow Transplantation Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, 310003, Hangzhou, China.
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Liu Y, Shen Q, Li H, Xiang W, Zhang L. Cell-free mitochondrial DNA increases granulosa cell apoptosis and reduces aged oocyte blastocyst development in the mouse. Reprod Toxicol 2020; 98:278-285. [PMID: 33144175 DOI: 10.1016/j.reprotox.2020.10.012] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Revised: 10/23/2020] [Accepted: 10/25/2020] [Indexed: 12/19/2022]
Abstract
Cell-free mitochondrial DNA (cf-mtDNA) released into the extracellular environment can cause cellular inflammatory responses and damage. Here, we investigated the effects of cf-mtDNA on mouse ovarian granulosa cell function and on the developmental competence of oocytes matured in vitro. Granulosa cells in the cf-mtDNA treatment group had a lower ATP content (P < 0.05), a higher apoptotic cell percentage (P < 0.01), and higher mRNA and protein levels of apoptosis-related factors than the control group (P < 0.01). TLR9, NF-кB p65 and MAPK p38 expression levels in granulosa cells were significantly increased in the cf-mtDNA treatment group (P < 0.05). The blastocyst formation rate of aged mice oocytes matured in vitro decreased significantly (P < 0.05) when cf-mtDNA was added to the media, compared with the control. However, the oocytes from young mice were not affected. Our results suggest that cf-mtDNA may impair granulosa cell function and induce granulosa cell apoptosis, subsequently decreasing blastocyst development in aged oocytes. This role of cf-mtDNA may be associated with the binding to TLR9 and the activation of NF-кB p65 and MAPK p38 signaling pathways.
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Affiliation(s)
- Yu Liu
- Institute of Reproductive Health and Center for Reproductive Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, PR China
| | - Qiuzi Shen
- Institute of Reproductive Health and Center for Reproductive Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, PR China
| | - Huiying Li
- Institute of Reproductive Health and Center for Reproductive Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, PR China
| | - Wenpei Xiang
- Institute of Reproductive Health and Center for Reproductive Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, PR China
| | - Ling Zhang
- Institute of Reproductive Health and Center for Reproductive Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, PR China.
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Yan K, Liang J, Zhang X, Deng L, Feng D, Ling B. Polyinosinic-polycytidylic acid induces innate immune responses via Toll-like receptor 3 in human ovarian granulosa cells. Immunol Cell Biol 2019; 97:753-765. [PMID: 31111539 DOI: 10.1111/imcb.12269] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Revised: 05/15/2019] [Accepted: 05/16/2019] [Indexed: 12/20/2022]
Abstract
The ovary can be infected by a variety of viruses, which may come from the female reproductive tract or the peritoneum. The innate immune responses to viral infection in the human ovary are poorly understood. The present study demonstrated that human ovarian granulosa cells had innate immune activity in response to viral RNA challenge through Toll-like receptor 3 (TLR3) activation. TLR3 was constitutively expressed in the human ovary and predominantly located in granulosa cells of developmental follicles at all stages. Polyinosinic-polycytidylic acid [poly (I:C)], a synthetic viral double-stranded RNA analog, induced innate immune responses in human ovarian granulosa cells and affected endocrine function. Poly (I:C) significantly upregulated proinflammatory cytokines, including tumor necrosis factor alpha (TNF-α), interleukin (IL)-6, IL-1β and type I interferon (IFN-α/β), and the innate immune responses were significantly reduced by blocking TLR3 signaling. Furthermore, poly (I:C) induced antiviral genes expression, including 2'-5'-oligoadenylate synthetase, Mx GTPase 1, IFN-stimulating gene 15 and double-stranded RNA-activated protein kinase R. In contrast, the expression of P450 aromatase and inhibin was dramatically inhibited by poly (I:C). Both silencing of TLR3 and neutralizing TNF-α reversed the inhibitory effect of poly (I:C) on P450 aromatase and inhibin expression. Our study demonstrates that granulosa cells play a potential role in innate immune protection against viral infection in the normal human ovary, and the innate immune response perturbs cell endocrine function.
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Affiliation(s)
- Keqin Yan
- Department of Obstetrics and Gynecology, China-Japan Friendship Hospital, Beijing, China
| | - Jing Liang
- Department of Obstetrics and Gynecology, China-Japan Friendship Hospital, Beijing, China
| | - Xiao Zhang
- Department of Obstetrics and Gynecology, China-Japan Friendship Hospital, Beijing, China
| | - Lin Deng
- Department of Obstetrics and Gynecology, China-Japan Friendship Hospital, Beijing, China
| | - Dingqing Feng
- Department of Obstetrics and Gynecology, China-Japan Friendship Hospital, Beijing, China
| | - Bin Ling
- Department of Obstetrics and Gynecology, China-Japan Friendship Hospital, Beijing, China
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What Changed on the Folliculogenesis in the Process of Mouse Ovarian Aging? BIOMED RESEARCH INTERNATIONAL 2019; 2019:3842312. [PMID: 31058188 PMCID: PMC6463680 DOI: 10.1155/2019/3842312] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/16/2018] [Revised: 01/15/2019] [Accepted: 01/30/2019] [Indexed: 01/05/2023]
Abstract
There are about 1-2 million follicles presented in the ovary at birth, while only around 1000 primordial follicles are left at menopause. The ovarian function also decreases in parallel with aging. Folliculogenesis is vital for ovarian function, no matter the synthesis of female hormones or ovulation, yet the mechanisms for its changing with increasing age are not fully understood. Early follicle growth up to the large preantral stage is independent of gonadotropins in rodents and relies on intraovarian factors. To further understand the age-related molecular changes in the process of folliculogenesis, we performed microarray gene expression profile analysis using total RNA extracted from young (9 weeks old) and old (32 weeks old) mouse ovarian secondary follicles. The results of our current microarray study revealed that there were 371 (≥2-fold, q-value ≤0.05) genes differentially expressed in which 174 genes were upregulated and 197 genes were downregulated in old mouse ovarian secondary follicles compared to young mouse ovarian secondary follicles. The gene ontology and KEGG pathway analysis of differentially expressed genes uncovered critical biological functions such as immune system process, aging, transcription, DNA replication, DNA repair, protein stabilization, and apoptotic process were affected in the process of aging. The considerable changes in gene expression profile may have an adverse influence on follicle quality and folliculogenesis. Our study provided information on the processes that may contribute to age-related decline in ovarian function.
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