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Sang J, Ji Z, Li H, Wang H, Quan H, Yu Y, Yan J, Mao Z, Wang Y, Li L, Ge RS, Lin H. Triclosan inhibits testosterone biosynthesis in adult rats via inducing m6A methylation-mediated autophagy. ENVIRONMENT INTERNATIONAL 2024; 190:108827. [PMID: 38908274 DOI: 10.1016/j.envint.2024.108827] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Revised: 06/17/2024] [Accepted: 06/17/2024] [Indexed: 06/24/2024]
Abstract
Triclosan is a potent antibacterial compound widely used in everyday products. Whether triclosan affects Leydig cell function in adult male rats remains unknown. In this study, 0, 50, 100, or 200 mg/kg/day triclosan was gavaged to Sprague-Dawley male rats from 56 to 63 days postpartum. Triclosan significantly reduced serum testosterone levels at ≥ 50 mg/kg/day via downregulating the expression of Leydig cell gene Lhcgr, Scarb1, Star, Cyp11a1, Hsd3b1, Cyp17a1, and Hsd17b3 and regulatory transcription factor Nr3c2 at 100-200 mg/kg. Further analysis showed that triclosan markedly increased autophagy as shown by increasing LC3II and BECN1 and decreasing SQSTM1. The mRNA m6A modification analysis revealed that triclosan significantly downregulated Fto expression at 200 mg/kg while upregulating Ythdf1 expression at 100 and 200 mg/kg, leading to methylation of Becn1 mRNA as shown by MeRIP assay. Triclosan significantly inhibited testosterone output in rat R2C Leydig cells at ≥ 5 μM via downregulating Fto and upregulating Ythdf1. SiRNA Ythdf1 knockdown can reverse triclosan-mediated mitophagy in R2C cells, thereby reversing the reduction of testosterone output. In summary, triclosan caused Becn1 m6A methylation by downregulating Fto and upregulating Ythdf1, which accelerated Becn1 translation, thus leading to the occurrence of autophagy and the decrease of testosterone biosynthesis.
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Affiliation(s)
- Jianmin Sang
- Department of Anesthesiology and Perioperative Medicine, the Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, Zhejiang 325027, China
| | - Zhongyao Ji
- Department of Anesthesiology and Perioperative Medicine, the Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, Zhejiang 325027, China
| | - Huitao Li
- Department of Anesthesiology and Perioperative Medicine, the Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, Zhejiang 325027, China
| | - Hong Wang
- Department of Anesthesiology and Perioperative Medicine, the Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, Zhejiang 325027, China
| | - Hehua Quan
- Department of Anesthesiology and Perioperative Medicine, the Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, Zhejiang 325027, China
| | - Yang Yu
- Department of Anesthesiology and Perioperative Medicine, the Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, Zhejiang 325027, China
| | - Jingyun Yan
- Department of Anesthesiology and Perioperative Medicine, the Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, Zhejiang 325027, China
| | - Zhixiang Mao
- Department of Anesthesiology and Perioperative Medicine, the Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, Zhejiang 325027, China
| | - Yiyan Wang
- Department of Anesthesiology and Perioperative Medicine, the Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, Zhejiang 325027, China; Key Laboratory of Pediatric Anesthesiology, Ministry of Education and Key Laboratory of Anesthesiology of Zhejiang Province, Wenzhou Medical University, Wenzhou, Zhejiang 325027, China
| | - Linxi Li
- Department of Anesthesiology and Perioperative Medicine, the Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, Zhejiang 325027, China.
| | - Ren-Shan Ge
- Department of Anesthesiology and Perioperative Medicine, the Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, Zhejiang 325027, China; Key Laboratory of Pediatric Anesthesiology, Ministry of Education and Key Laboratory of Anesthesiology of Zhejiang Province, Wenzhou Medical University, Wenzhou, Zhejiang 325027, China; Key Laboratory of Environment and Male Reproductive Medicine of Wenzhou and Key Laboratory of Structural Malformations in Children of Zhejiang Province and, Zhejiang Province, China.
| | - Han Lin
- Department of Anesthesiology and Perioperative Medicine, the Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, Zhejiang 325027, China; Key Laboratory of Pediatric Anesthesiology, Ministry of Education and Key Laboratory of Anesthesiology of Zhejiang Province, Wenzhou Medical University, Wenzhou, Zhejiang 325027, China.
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Hao Y, Tian X, Yan F, Wang X, Huang J, Li L. Effect of MEHP on testosterone synthesis via Sirt1/Foxo1/Rab7 signaling pathway inhibition of lipophagy in TM3 cells. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 277:116394. [PMID: 38663197 DOI: 10.1016/j.ecoenv.2024.116394] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2023] [Revised: 04/14/2024] [Accepted: 04/22/2024] [Indexed: 05/30/2024]
Abstract
Mono-2-ethylhexyl phthalic acid (MEHP) is the most toxic metabolite of the plasticizer di-2-ethylhexyl phthalic acid (DEHP), and studies have shown that MEHP causes serious reproductive effects. However, its exact mechanisms of action remain elusive. In this study, we aimed to investigate the reproductive effects of MEHP and preliminarily explore its underlying molecular mechanisms. We found that TM3 cells gradually secreted less testosterone and intracellular free cholesterol with increasing MEHP exposure. MEHP exposure inhibited lipophagy and the Sirt1/Foxo1/Rab7 signaling pathway in TM3 cells, causing aberrant accumulation of intracellular lipid droplets. Addition of the Sirt1 agonist SRT1720 and Rab7 agonist ML-098 alleviated the inhibition of lipophagy and increased free cholesterol and testosterone contents in TM3 cells. SRT1720 alleviated the inhibitory effect of MEHP on the Sirt1/Foxo1/Rab7 signaling pathway, whereas ML-098 only alleviated the inhibition of Rab7 protein expression by MEHP and had no effect on Sirt1 and Foxo1 protein expression. This suggests that MEHP inhibits lipophagy in TM3 cells by suppressing the Sirt1/Foxo1/Rab7 signaling pathway, ultimately leading to a further decrease in cellular testosterone secretion. This study improves our current understanding of the toxicity and molecular mechanisms of action of MEHP and provides new insights into the reproductive effects of phthalic acid esters.
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Affiliation(s)
- Yu Hao
- Department of Occupational and Environmental Health, School of Public Health, Ningxia Medical University, Yinchuan, Ningxia 750004, China; Key Laboratory of Environmental Factors and Chronic Disease Control, School of Public Health, Ningxia Medical University, Yinchuan, Ningxia 750004, China
| | - Xuan'en Tian
- Department of Pediatric Surgery, General Hospital of Ningxia Medical University, Yinchuan, Ningxia 750004, China
| | - Fengmei Yan
- Department of Occupational and Environmental Health, School of Public Health, Ningxia Medical University, Yinchuan, Ningxia 750004, China; Key Laboratory of Environmental Factors and Chronic Disease Control, School of Public Health, Ningxia Medical University, Yinchuan, Ningxia 750004, China
| | - Xiuqin Wang
- Ningxia Hui Autonomous Region Center for Disease Control and Prevention, Yinchuan, Ningxia 750004, China
| | - Jing Huang
- Department of Occupational and Environmental Health, School of Public Health, Ningxia Medical University, Yinchuan, Ningxia 750004, China; Key Laboratory of Environmental Factors and Chronic Disease Control, School of Public Health, Ningxia Medical University, Yinchuan, Ningxia 750004, China
| | - Ling Li
- Department of Occupational and Environmental Health, School of Public Health, Ningxia Medical University, Yinchuan, Ningxia 750004, China; Key Laboratory of Environmental Factors and Chronic Disease Control, School of Public Health, Ningxia Medical University, Yinchuan, Ningxia 750004, China
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Zhu Q, Zhu S, Li Q, Hu C, Pan C, Li H, Zhu Y, Li X, Tang Y, Ge RS. Prenatal diethylhexylphthalate exposure disturbs adult Leydig cell function via epigenetic downregulation of METTL4 expression in male rats. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 277:116391. [PMID: 38678792 DOI: 10.1016/j.ecoenv.2024.116391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2024] [Revised: 04/03/2024] [Accepted: 04/22/2024] [Indexed: 05/01/2024]
Abstract
Prenatal exposure to diethylhexyl phthalate (DEHP) has been linked with a decline in testosterone levels in adult male rats, but the underlying mechanism remains unclear. We investigated the potential epigenetic regulation, particularly focusing on N6-methyladenosine (m6A) modification, as a possible mechanism. Dams were gavaged with DEHP (0, 10, 100, and 750 mg/kg/day) from gestational day 14 to day 21. The male offspring were examined at the age of 56 days. Prenatal DEHP administration at 750 mg/kg/day caused a decline in testosterone concentrations, an elevation in follicle-stimulating hormone, a downregulated expression of CYP11A1 HSD3B2, without affecting Leydig cell numbers. Interestingly, Methyltransferase Like 4 (METTL4), an m6A methyltransferase, was downregulated, while there were no changes in METTL3 and METTL14. Moreover, CYP11A1 showed m6A reduction in response to prenatal DEHP exposure. Additionally, METTL4 expression increased postnatally, peaking in adulthood. Knockdown of METTL4 resulted in the downregulation of CYP11A1 and HSD3B2 and an increase in SCARB1 expression. Furthermore, the increase in autophagy protection in adult Leydig cells induced by prenatal DEHP exposure was not affected by 3-methyladenosine (3MA) treatment, indicating a potential protective role of autophagy in response to DEHP exposure. In conclusion, prenatal DEHP exposure reduces testosterone by downregulating CYP11A1 and HSD3B2 via m6A epigenetic regulation and induction of autophagy protection in adult Leydig cells as a response to DEHP exposure.
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Affiliation(s)
- Qiqi Zhu
- Department of Anesthesiology and Perioperative Medicine, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, China; Key Laboratory of Pediatric Anesthesiology, Ministry of Education, Wenzhou Medical University, Wenzhou, Zhejiang 325027, China; Key Laboratory of Anesthesiology of Zhejiang Province, Wenzhou Medical University, Wenzhou, Zhejiang 325027, China; Key Laboratory of Environment and Male Reproductive Medicine of Wenzhou, and Key Laboratory of Structural Malformations in Children of Zhejiang Province, Wenzhou, Zhejiang Province 325000, China
| | - Shanshan Zhu
- Department of Anesthesiology and Perioperative Medicine, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, China; Key Laboratory of Pediatric Anesthesiology, Ministry of Education, Wenzhou Medical University, Wenzhou, Zhejiang 325027, China; Key Laboratory of Anesthesiology of Zhejiang Province, Wenzhou Medical University, Wenzhou, Zhejiang 325027, China; Department of Scientific Research, School of Optometry and Ophthalmology and The Eye Hospital, Wenzhou Medical University, Wenzhou, Zhejiang 325027, China
| | - Qiyao Li
- Department of Anesthesiology and Perioperative Medicine, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, China; Key Laboratory of Pediatric Anesthesiology, Ministry of Education, Wenzhou Medical University, Wenzhou, Zhejiang 325027, China; Key Laboratory of Anesthesiology of Zhejiang Province, Wenzhou Medical University, Wenzhou, Zhejiang 325027, China
| | - Chunnan Hu
- Department of Anesthesiology and Perioperative Medicine, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, China; Key Laboratory of Pediatric Anesthesiology, Ministry of Education, Wenzhou Medical University, Wenzhou, Zhejiang 325027, China; Key Laboratory of Anesthesiology of Zhejiang Province, Wenzhou Medical University, Wenzhou, Zhejiang 325027, China
| | - Chengshuang Pan
- Department of Obstetrics and Gynecology, Wenzhou Medicial University, Wenzhou, Zhejiang 325000, China
| | - Huitao Li
- Department of Anesthesiology and Perioperative Medicine, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, China; Key Laboratory of Pediatric Anesthesiology, Ministry of Education, Wenzhou Medical University, Wenzhou, Zhejiang 325027, China; Key Laboratory of Anesthesiology of Zhejiang Province, Wenzhou Medical University, Wenzhou, Zhejiang 325027, China; Key Laboratory of Environment and Male Reproductive Medicine of Wenzhou, and Key Laboratory of Structural Malformations in Children of Zhejiang Province, Wenzhou, Zhejiang Province 325000, China
| | - Yang Zhu
- Department of Anesthesiology and Perioperative Medicine, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, China; Key Laboratory of Pediatric Anesthesiology, Ministry of Education, Wenzhou Medical University, Wenzhou, Zhejiang 325027, China; Key Laboratory of Anesthesiology of Zhejiang Province, Wenzhou Medical University, Wenzhou, Zhejiang 325027, China; Key Laboratory of Environment and Male Reproductive Medicine of Wenzhou, and Key Laboratory of Structural Malformations in Children of Zhejiang Province, Wenzhou, Zhejiang Province 325000, China
| | - Xiaoheng Li
- Department of Anesthesiology and Perioperative Medicine, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, China; Key Laboratory of Pediatric Anesthesiology, Ministry of Education, Wenzhou Medical University, Wenzhou, Zhejiang 325027, China; Key Laboratory of Anesthesiology of Zhejiang Province, Wenzhou Medical University, Wenzhou, Zhejiang 325027, China; Key Laboratory of Environment and Male Reproductive Medicine of Wenzhou, and Key Laboratory of Structural Malformations in Children of Zhejiang Province, Wenzhou, Zhejiang Province 325000, China
| | - Yunbing Tang
- Department of Obstetrics and Gynecology, Wenzhou Medicial University, Wenzhou, Zhejiang 325000, China.
| | - Ren-Shan Ge
- Department of Anesthesiology and Perioperative Medicine, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, China; Key Laboratory of Pediatric Anesthesiology, Ministry of Education, Wenzhou Medical University, Wenzhou, Zhejiang 325027, China; Key Laboratory of Anesthesiology of Zhejiang Province, Wenzhou Medical University, Wenzhou, Zhejiang 325027, China; Department of Obstetrics and Gynecology, Wenzhou Medicial University, Wenzhou, Zhejiang 325000, China; Key Laboratory of Environment and Male Reproductive Medicine of Wenzhou, and Key Laboratory of Structural Malformations in Children of Zhejiang Province, Wenzhou, Zhejiang Province 325000, China.
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Zhao Y, Wang XQ, Liu RQ, Jiang FW, Wang JX, Chen MS, Zhang H, Cui JG, Chang YH, Li JL. SLC7A11 as a therapeutic target to attenuate phthalates-driven testosterone level decline in mice. J Adv Res 2024:S2090-1232(24)00216-9. [PMID: 38797476 DOI: 10.1016/j.jare.2024.05.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2024] [Revised: 05/23/2024] [Accepted: 05/23/2024] [Indexed: 05/29/2024] Open
Abstract
INTRODUCTION Phthalates exposure is a major public health concern due to the accumulation in the environment and associated with levels of testosterone reduction, leading to adverse pregnancy outcomes. However, the relationship between phthalate-induced testosterone level decline and ferroptosis remains poorly defined. OBJECTIVES Herein, we aimed to explore the mechanisms of phthalates-induced testosterone synthesis disorder and its relationship to ferroptosis. METHODS We conducted validated experiments in vivo male mice model and in vitro mouse Leydig TM3 cell line, followed by RNA sequencing and metabolomic analysis. We evaluated the levels of testosterone synthesis-associated enzymes and ferroptosis-related indicators by using qRT-PCR and Western blotting. Then, we analyzed the lipid peroxidation, ROS, Fe2+ levels and glutathione system to confirm the occurrence of ferroptosis. RESULTS In the present study, we used di (2-ethylhexyl) phthalate (DEHP) to identify ferroptosis as the critical contributor to phthalate-induced testosterone level decline. It was demonstrated that DEHP caused glutathione metabolism and steroid synthesis disorders in Leydig cells. As the primary metabolite of DEHP, mono-2-ethylhexyl phthalate (MEHP) triggered testosterone synthesis disorder accompanied by a decrease in the expression of solute carri1er family 7 member 11 (SLC7A11) protein. Furthermore, MEHP synergistically induced ferroptosis with Erastin through the increase of intracellular and mitochondrial ROS, and lipid peroxidation production. Mechanistically, overexpression of SLC7A11 counteracts the synergistic effect of co-exposure to MEHP-Erastin. CONCLUSION Our research results suggest that MEHP does not induce ferroptosis but synergizes Erastin-induced ferroptosis. These findings provide evidence for the role of ferroptosis in phthalates-induced testosterone synthesis disorder and point to SLC7A11 as a potential target for male reproductive diseases. This study established a correlation between ferroptosis and phthalates cytotoxicity, providing a novel view point for mitigating the issue of male reproductive disease and "The Global Plastic Toxicity Debt".
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Affiliation(s)
- Yi Zhao
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, PR China
| | - Xue-Qi Wang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, PR China
| | - Rui-Qi Liu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, PR China
| | - Fu-Wei Jiang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, PR China
| | - Jia-Xin Wang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, PR China
| | - Ming-Shan Chen
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, PR China
| | - Hao Zhang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, PR China
| | - Jia-Gen Cui
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, PR China
| | - Yuan-Hang Chang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, PR China
| | - Jin-Long Li
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, PR China; Key Laboratory of the Provincial Education Department of Heilongjiang for Common Animal Disease Prevention and Treatment, Northeast Agricultural University, Harbin 150030, PR China; Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, Northeast Agricultural University, Harbin 150030, PR China.
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Jiang L, Lin X, Jiang J, Qiu C, Zheng S, Zhao N, Shu Z, Qian Y, Qiu L. METTL3-m6A-SIRT1 axis affects autophagic flux contributing to PM 2.5-induced inhibition of testosterone production in Leydig cells. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 918:170701. [PMID: 38325452 DOI: 10.1016/j.scitotenv.2024.170701] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 01/31/2024] [Accepted: 02/03/2024] [Indexed: 02/09/2024]
Abstract
Epidemiological studies have found that long-term inhalation of PM2.5 is closely related to spermatogenesis disorders and infertility, but the underlying molecular mechanism is still unidentified. Testosterone, an essential reproductive hormone produced by Leydig cells, whose synthesis is disrupted by multiple environmental pollutants. In the current study, we explored the role of METTL3-m6A-SIRT1 axis-mediated abnormal autophagy in PM2.5-induced inhibition of testosterone production in in vivo and in vitro models. Our in vivo findings shown that long-term inhalation of PM2.5 decreased sperm count, increased sperm deformity rates, and altered testicular interstitial morphology accompanied by reduced testosterone in serum and testes. Further, data from the in vitro model displayed that exposure to PM2.5 caused an increase in m6A modification and METTL3 levels, followed by a decrease in testosterone levels and autophagy dysfunction in Leydig cells. The knockdown of METTL3 promotes autophagy flux and testosterone production in Leydig cells. Mechanistically, PM2.5 increased METTL3-induced m6A modification of SIRT1 mRNA in Leydig cells, bringing about abnormal autophagy. Subsequently, administration of SRT1720 (a SIRT1 activator) enhanced autophagy and further promoted testosterone biosynthesis. Collectively, our discoveries indicate that METTL3-m6A-SIRT1 axis-mediated autophagic flux contributes to PM2.5-induced inhibition of testosterone biosynthesis. This research offers a novel viewpoint on the mechanism of male reproductive injury following PM2.5 exposure.
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Affiliation(s)
- Lianlian Jiang
- School of Public Health, Nantong University, 9 Seyuan Rd., Nantong 226019, PR China
| | - Xiaojun Lin
- School of Public Health, Nantong University, 9 Seyuan Rd., Nantong 226019, PR China
| | - Jinchen Jiang
- School of Public Health, Nantong University, 9 Seyuan Rd., Nantong 226019, PR China
| | - Chong Qiu
- Medical School, Nantong University, 19 Qixiu Rd., Nantong 226001, PR China
| | - Shaokai Zheng
- School of Public Health, Nantong University, 9 Seyuan Rd., Nantong 226019, PR China
| | - Nannan Zhao
- School of Public Health, Nantong University, 9 Seyuan Rd., Nantong 226019, PR China
| | - Zhenhao Shu
- School of Public Health, Nantong University, 9 Seyuan Rd., Nantong 226019, PR China
| | - Yinyun Qian
- Graduate School, Nantong University, 9 Seyuan Rd., Nantong 226019, PR China
| | - Lianglin Qiu
- School of Public Health, Nantong University, 9 Seyuan Rd., Nantong 226019, PR China.
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Cong X, Li X, Xu K, Yin L, Liang G, Sun R, Pu Y, Zhang J. HIF-1α/m 6A/NF-κB/CCL3 axis-mediated immunosurveillance participates in low level benzene-related erythrohematopoietic development toxicity. ENVIRONMENT INTERNATIONAL 2024; 184:108493. [PMID: 38350257 DOI: 10.1016/j.envint.2024.108493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2023] [Revised: 02/06/2024] [Accepted: 02/06/2024] [Indexed: 02/15/2024]
Abstract
Defective erythropoiesis is one of the causes of anemia and leukemia. However, the mechanisms underlying defective erythropoiesis under a low-dose environment of benzene are poorly understood. In the present study, multiple omics (transcriptomics and metabolomics) and methods from epidemiology to experimental biology (e.g., benzene-induced (WT and HIF-1α + ) mouse, hiPSC-derived HSPCs) were used. Here, we showed that erythropoiesis is more easily impacted than other blood cells, and the process is reversible, which involves HIF-1 and NF-kB signaling pathways in low-level benzene exposure workers. Decreased HIF-1α expression in benzene-induced mouse bone marrow resulted in DNA damage, senescence, and apoptosis in BMCs and HSCs, causing disturbances in iron homeostasis and erythropoiesis. We further revealed that HIF-1α mediates CCL3/macrophage-related immunosurveillance against benzene-induced senescent and damaged cells and contributes to iron homeostasis. Mechanistically, we showed that m6A modification is essential in this process. Benzene-induced depletion of m6A promotes the mRNA stability of gene NFKBIA and regulates the NF-κB/CCL3 pathway, which is regulated by HIF-1α/METTL3/YTHDF2. Overall, our results identified an unidentified role for HIF-1α, m6A, and the NF-kB signaling machinery in erythroid progenitor cells, suggesting that HIF-1α/METTL3/YTHDF2-m6A/NF-κB/CCL3 axis may be a potential prevention and therapeutic target for chronic exposure of humans to benzene-associated anemia and leukemia.
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Affiliation(s)
- Xiaowei Cong
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing 210009, Jiangsu, China
| | - Xiaoqin Li
- Yangzhou Center for Disease Control and Prevention, Yangzhou 225100, Jiangsu, China
| | - Kai Xu
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing 210009, Jiangsu, China
| | - Lihong Yin
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing 210009, Jiangsu, China
| | - Geyu Liang
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing 210009, Jiangsu, China
| | - Rongli Sun
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing 210009, Jiangsu, China
| | - Yuepu Pu
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing 210009, Jiangsu, China.
| | - Juan Zhang
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing 210009, Jiangsu, China.
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Zheng J, Lu Y, Lin Y, Si S, Guo B, Zhao X, Cui L. Epitranscriptomic modifications in mesenchymal stem cell differentiation: advances, mechanistic insights, and beyond. Cell Death Differ 2024; 31:9-27. [PMID: 37985811 PMCID: PMC10782030 DOI: 10.1038/s41418-023-01238-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 10/24/2023] [Accepted: 11/06/2023] [Indexed: 11/22/2023] Open
Abstract
RNA modifications, known as the "epitranscriptome", represent a key layer of regulation that influences a wide array of biological processes in mesenchymal stem cells (MSCs). These modifications, catalyzed by specific enzymes, often termed "writers", "readers", and "erasers", can dynamically alter the MSCs' transcriptomic landscape, thereby modulating cell differentiation, proliferation, and responses to environmental cues. These enzymes include members of the classes METTL, IGF2BP, WTAP, YTHD, FTO, NAT, and others. Many of these RNA-modifying agents are active during MSC lineage differentiation. This review provides a comprehensive overview of the current understanding of different RNA modifications in MSCs, their roles in regulating stem cell behavior, and their implications in MSC-based therapies. It delves into how RNA modifications impact MSC biology, the functional significance of individual modifications, and the complex interplay among these modifications. We further discuss how these intricate regulatory mechanisms contribute to the functional diversity of MSCs, and how they might be harnessed for therapeutic applications. The review also highlights current challenges and potential future directions in the study of RNA modifications in MSCs, emphasizing the need for innovative tools to precisely map these modifications and decipher their context-specific effects. Collectively, this work paves the way for a deeper understanding of the role of the epitranscriptome in MSC biology, potentially advancing therapeutic strategies in regenerative medicine and MSC-based therapies.
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Affiliation(s)
- Jiarong Zheng
- Department of Dentistry, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510080, China
- Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou, 510280, Guangdong, China
| | - Ye Lu
- Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou, 510280, Guangdong, China
| | - Yunfan Lin
- Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou, 510280, Guangdong, China
| | - Shanshan Si
- Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou, 510280, Guangdong, China
| | - Bing Guo
- Department of Dentistry, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510080, China.
| | - Xinyuan Zhao
- Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou, 510280, Guangdong, China.
| | - Li Cui
- Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou, 510280, Guangdong, China.
- Division of Oral Biology and Medicine, School of Dentistry, University of California, Los Angeles, Los Angeles, 90095, CA, USA.
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Bi CF, Liu J, Hu XD, Yang LS, Zhang JF. Novel insights into the regulatory role of N6-methyladenosine methylation modified autophagy in sepsis. Aging (Albany NY) 2023; 15:15676-15700. [PMID: 38112620 PMCID: PMC10781468 DOI: 10.18632/aging.205312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2023] [Accepted: 10/23/2023] [Indexed: 12/21/2023]
Abstract
Sepsis is defined as a life-threatening organ dysfunction caused by a dysregulated host response to infection. It is characterized by high morbidity and mortality and one of the major diseases that seriously hang over global human health. Autophagy is a crucial regulator in the complicated pathophysiological processes of sepsis. The activation of autophagy is known to be of great significance for protecting sepsis induced organ dysfunction. Recent research has demonstrated that N6-methyladenosine (m6A) methylation is a well-known post-transcriptional RNA modification that controls epigenetic and gene expression as well as a number of biological processes in sepsis. In addition, m6A affects the stability, export, splicing and translation of transcripts involved in the autophagic process. Although it has been suggested that m6A methylation regulates the biological metabolic processes of autophagy and is more frequently seen in the progression of sepsis pathogenesis, the underlying molecular mechanisms of m6A-modified autophagy in sepsis have not been thoroughly elucidated. The present article fills this gap by providing an epigenetic review of the processes of m6A-modified autophagy in sepsis and its potential role in the development of novel therapeutics.
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Affiliation(s)
- Cheng-Fei Bi
- Department of Emergency Medical, General Hospital of Ningxia Medical University, Yinchuan 750000, Ningxia, China
- School of Clinical Medicine, Ningxia Medical University, Yinchuan 750000, Ningxia, China
| | - Jia Liu
- Medical Experimental Center, General Hospital of Ningxia Medical University, Yinchuan 750000, Ningxia, China
| | - Xiao-Dong Hu
- Department of Emergency Medical, General Hospital of Ningxia Medical University, Yinchuan 750000, Ningxia, China
| | - Li-Shan Yang
- Department of Emergency Medical, General Hospital of Ningxia Medical University, Yinchuan 750000, Ningxia, China
| | - Jun-Fei Zhang
- Department of Emergency Medical, General Hospital of Ningxia Medical University, Yinchuan 750000, Ningxia, China
- Medical Experimental Center, General Hospital of Ningxia Medical University, Yinchuan 750000, Ningxia, China
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Yu M, Ji W, Yang X, Tian K, Ma X, Yu S, Chen L, Zhao X. The role of m6A demethylases in lung cancer: diagnostic and therapeutic implications. Front Immunol 2023; 14:1279735. [PMID: 38094306 PMCID: PMC10716209 DOI: 10.3389/fimmu.2023.1279735] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Accepted: 11/13/2023] [Indexed: 12/18/2023] Open
Abstract
m6A is the most prevalent internal modification of eukaryotic mRNA, and plays a crucial role in tumorigenesis and various other biological processes. Lung cancer is a common primary malignant tumor of the lungs, which involves multiple factors in its occurrence and progression. Currently, only the demethylases FTO and ALKBH5 have been identified as associated with m6A modification. These demethylases play a crucial role in regulating the growth and invasion of lung cancer cells by removing methyl groups, thereby influencing stability and translation efficiency of mRNA. Furthermore, they participate in essential biological signaling pathways, making them potential targets for intervention in lung cancer treatment. Here we provides an overview of the involvement of m6A demethylase in lung cancer, as well as their potential application in the diagnosis, prognosis and treatment of the disease.
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Affiliation(s)
- Mengjiao Yu
- Department of Occupational Medicine and Environmental Toxicology, Nantong Key Laboratory of Environmental Toxicology, School of Public Health, Nantong University, Nantong, China
| | - Wenqian Ji
- College of International Studies, Southwest University, Chongqing, China
| | - Xu Yang
- Department of Occupational Medicine and Environmental Toxicology, Nantong Key Laboratory of Environmental Toxicology, School of Public Health, Nantong University, Nantong, China
| | - Kai Tian
- Department of Occupational Medicine and Environmental Toxicology, Nantong Key Laboratory of Environmental Toxicology, School of Public Health, Nantong University, Nantong, China
| | - Xinyi Ma
- Department of Occupational Medicine and Environmental Toxicology, Nantong Key Laboratory of Environmental Toxicology, School of Public Health, Nantong University, Nantong, China
| | - Shali Yu
- Department of Occupational Medicine and Environmental Toxicology, Nantong Key Laboratory of Environmental Toxicology, School of Public Health, Nantong University, Nantong, China
| | - Lin Chen
- Nantong Institute of Liver Diseases, Nantong Third People’s Hospital Affiliated Nantong Hospital of Nantong University, Nantong, China
| | - Xinyuan Zhao
- Department of Occupational Medicine and Environmental Toxicology, Nantong Key Laboratory of Environmental Toxicology, School of Public Health, Nantong University, Nantong, China
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Chen C, Tang X, Yan S, Yang A, Xiang J, Deng Y, Yin Y, Chen B, Gu J. Comprehensive Analysis of the Transcriptome-Wide m 6A Methylome in Shaziling Pig Testicular Development. Int J Mol Sci 2023; 24:14475. [PMID: 37833923 PMCID: PMC10572705 DOI: 10.3390/ijms241914475] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Revised: 09/18/2023] [Accepted: 09/21/2023] [Indexed: 10/15/2023] Open
Abstract
RNA N6-methyladenosine (m6A) modification is one of the principal post-transcriptional modifications and plays a dynamic role in testicular development and spermatogenesis. However, the role of m6A in porcine testis is understudied. Here, we performed a comprehensive analysis of the m6A transcriptome-wide profile in Shaziling pig testes at birth, puberty, and maturity. We analyzed the total transcriptome m6A profile and found that the m6A patterns were highly distinct in terms of the modification of the transcriptomes during porcine testis development. We found that key m6A methylated genes (AURKC, OVOL, SOX8, ACVR2A, and SPATA46) were highly enriched during spermatogenesis and identified in spermatogenesis-related KEGG pathways, including Wnt, cAMP, mTOR, AMPK, PI3K-Akt, and spliceosome. Our findings indicated that m6A methylations are involved in the complex yet well-organized post-transcriptional regulation of porcine testicular development and spermatogenesis. We found that the m6A eraser ALKBH5 negatively regulated the proliferation of immature porcine Sertoli cells. Furthermore, we proposed a novel mechanism of m6A modification during testicular development: ALKBH5 regulated the RNA methylation level and gene expression of SOX9 mRNA. In addition to serving as a potential target for improving boar reproduction, our findings contributed to the further understanding of the regulation of m6A modifications in male reproduction.
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Affiliation(s)
- Chujie Chen
- College of Animal Science and Technology, Hunan Agricultural University, Changsha 410128, China; (C.C.); (X.T.); (S.Y.); (A.Y.); (J.X.); (Y.D.); (Y.Y.)
- Hunan Provincial Key Laboratory for Genetic Improvement of Domestic Animal, Hunan Agricultural University, Changsha 410128, China
| | - Xiangwei Tang
- College of Animal Science and Technology, Hunan Agricultural University, Changsha 410128, China; (C.C.); (X.T.); (S.Y.); (A.Y.); (J.X.); (Y.D.); (Y.Y.)
- Hunan Provincial Key Laboratory for Genetic Improvement of Domestic Animal, Hunan Agricultural University, Changsha 410128, China
| | - Saina Yan
- College of Animal Science and Technology, Hunan Agricultural University, Changsha 410128, China; (C.C.); (X.T.); (S.Y.); (A.Y.); (J.X.); (Y.D.); (Y.Y.)
- Hunan Provincial Key Laboratory for Genetic Improvement of Domestic Animal, Hunan Agricultural University, Changsha 410128, China
| | - Anqi Yang
- College of Animal Science and Technology, Hunan Agricultural University, Changsha 410128, China; (C.C.); (X.T.); (S.Y.); (A.Y.); (J.X.); (Y.D.); (Y.Y.)
- Hunan Provincial Key Laboratory for Genetic Improvement of Domestic Animal, Hunan Agricultural University, Changsha 410128, China
| | - Jiaojiao Xiang
- College of Animal Science and Technology, Hunan Agricultural University, Changsha 410128, China; (C.C.); (X.T.); (S.Y.); (A.Y.); (J.X.); (Y.D.); (Y.Y.)
- Hunan Provincial Key Laboratory for Genetic Improvement of Domestic Animal, Hunan Agricultural University, Changsha 410128, China
| | - Yanhong Deng
- College of Animal Science and Technology, Hunan Agricultural University, Changsha 410128, China; (C.C.); (X.T.); (S.Y.); (A.Y.); (J.X.); (Y.D.); (Y.Y.)
- Hunan Provincial Key Laboratory for Genetic Improvement of Domestic Animal, Hunan Agricultural University, Changsha 410128, China
| | - Yulong Yin
- College of Animal Science and Technology, Hunan Agricultural University, Changsha 410128, China; (C.C.); (X.T.); (S.Y.); (A.Y.); (J.X.); (Y.D.); (Y.Y.)
- Key Laboratory of Agro-Ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125, China
| | - Bin Chen
- College of Animal Science and Technology, Hunan Agricultural University, Changsha 410128, China; (C.C.); (X.T.); (S.Y.); (A.Y.); (J.X.); (Y.D.); (Y.Y.)
- Hunan Provincial Key Laboratory for Genetic Improvement of Domestic Animal, Hunan Agricultural University, Changsha 410128, China
| | - Jingjing Gu
- College of Animal Science and Technology, Hunan Agricultural University, Changsha 410128, China; (C.C.); (X.T.); (S.Y.); (A.Y.); (J.X.); (Y.D.); (Y.Y.)
- Hunan Provincial Key Laboratory for Genetic Improvement of Domestic Animal, Hunan Agricultural University, Changsha 410128, China
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Hong Y, Zhou X, Li Q, Chen J, Wei Y, Wang S, Zheng X, Zhao J, Yu C, Pei J, Zhang J, Long C, Shen L, Wu S, Wei G. Wnt10a downregulation contributes to MEHP-induced disruption of self-renewal and differentiation balance and proliferation inhibition in GC-1 cells: Insights from multiple transcriptomic profiling. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 333:122091. [PMID: 37364752 DOI: 10.1016/j.envpol.2023.122091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 06/06/2023] [Accepted: 06/20/2023] [Indexed: 06/28/2023]
Abstract
Di (2-ethylhexyl) phthalate (DEHP), one of phthalic acid esters, has been widely used in daily products. Its main metabolite, mono (2-ethylhexyl) phthalate (MEHP) was reported to possess higher testicular toxicity than DEHP. To explore the precise mechanism in MEHP-induced testis damage, multiple transcriptomic sequencing was employed in spermatogonia cell line GC-1 cells treated with MEHP (0, 100, and 200 μM) for 24 h. Integrative omics analysis and empirical validation revealed that Wnt signaling pathway was downregulated and wnt10a, one of hub genes, may be the key player in this process. Similar results were observed in DEHP-exposed rats. MEHP-induced disturbance of self-renewal and differentiation was dose-dependent. Moreover, self-renewal proteins were downregulated; the differentiation level was stimulated. Meanwhile, GC-1 proliferation was decreased. Stable transformation strain of wnt10a overexpression GC-1 cell line constructed from lentivirus was utilized in this study. The upregulation of Wnt10a significantly reversed the dysfunction of self-renewal and differentiation and promoted the cell proliferation. Finally, retinol, predicted to be useful in CONNECTIVITY MAP (cMAP), failed to rescue the damage caused by MEHP. Cumulatively, our findings revealed that the downregulation of Wnt10a induced the imbalance of self-renew and differentiation, and inhibition of cell proliferation in GC-1 cells after MEHP exposure.
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Affiliation(s)
- Yifan Hong
- Department of Urology, Children's Hospital of Chongqing Medical University, Chongqing, 400014, PR China; Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Chongqing, 400014, PR China; Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering; Chongqing Key Laboratory of Pediatrics; Ministry of Education Key Laboratory of Child Development and Disorders; National Clinical Research Center for Child Health and Disorders; China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing, 400014, PR China
| | - Xiazhu Zhou
- Department of Urology, Children's Hospital of Chongqing Medical University, Chongqing, 400014, PR China; Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Chongqing, 400014, PR China; Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering; Chongqing Key Laboratory of Pediatrics; Ministry of Education Key Laboratory of Child Development and Disorders; National Clinical Research Center for Child Health and Disorders; China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing, 400014, PR China
| | - Qi Li
- Department of Urology, Children's Hospital of Chongqing Medical University, Chongqing, 400014, PR China; Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Chongqing, 400014, PR China; Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering; Chongqing Key Laboratory of Pediatrics; Ministry of Education Key Laboratory of Child Development and Disorders; National Clinical Research Center for Child Health and Disorders; China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing, 400014, PR China
| | - Jing Chen
- Department of Urology, Children's Hospital of Chongqing Medical University, Chongqing, 400014, PR China; Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Chongqing, 400014, PR China; Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering; Chongqing Key Laboratory of Pediatrics; Ministry of Education Key Laboratory of Child Development and Disorders; National Clinical Research Center for Child Health and Disorders; China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing, 400014, PR China
| | - Yuexin Wei
- Department of Urology, Children's Hospital of Chongqing Medical University, Chongqing, 400014, PR China; Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering; Chongqing Key Laboratory of Pediatrics; Ministry of Education Key Laboratory of Child Development and Disorders; National Clinical Research Center for Child Health and Disorders; China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing, 400014, PR China
| | - Siyuan Wang
- Department of Urology, Children's Hospital of Chongqing Medical University, Chongqing, 400014, PR China; Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Chongqing, 400014, PR China; Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering; Chongqing Key Laboratory of Pediatrics; Ministry of Education Key Laboratory of Child Development and Disorders; National Clinical Research Center for Child Health and Disorders; China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing, 400014, PR China
| | - Xiangqin Zheng
- Department of Urology, Children's Hospital of Chongqing Medical University, Chongqing, 400014, PR China; Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Chongqing, 400014, PR China; Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering; Chongqing Key Laboratory of Pediatrics; Ministry of Education Key Laboratory of Child Development and Disorders; National Clinical Research Center for Child Health and Disorders; China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing, 400014, PR China
| | - Jie Zhao
- Department of Urology, Children's Hospital of Chongqing Medical University, Chongqing, 400014, PR China; Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Chongqing, 400014, PR China; Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering; Chongqing Key Laboratory of Pediatrics; Ministry of Education Key Laboratory of Child Development and Disorders; National Clinical Research Center for Child Health and Disorders; China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing, 400014, PR China
| | - Chengjun Yu
- Department of Urology, Children's Hospital of Chongqing Medical University, Chongqing, 400014, PR China; Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Chongqing, 400014, PR China; Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering; Chongqing Key Laboratory of Pediatrics; Ministry of Education Key Laboratory of Child Development and Disorders; National Clinical Research Center for Child Health and Disorders; China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing, 400014, PR China
| | - Jun Pei
- Department of Urology, Children's Hospital of Chongqing Medical University, Chongqing, 400014, PR China; Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Chongqing, 400014, PR China; Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering; Chongqing Key Laboratory of Pediatrics; Ministry of Education Key Laboratory of Child Development and Disorders; National Clinical Research Center for Child Health and Disorders; China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing, 400014, PR China
| | - Jie Zhang
- Department of Urology, Children's Hospital of Chongqing Medical University, Chongqing, 400014, PR China; Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Chongqing, 400014, PR China; Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering; Chongqing Key Laboratory of Pediatrics; Ministry of Education Key Laboratory of Child Development and Disorders; National Clinical Research Center for Child Health and Disorders; China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing, 400014, PR China
| | - Chunlan Long
- Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Chongqing, 400014, PR China; Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering; Chongqing Key Laboratory of Pediatrics; Ministry of Education Key Laboratory of Child Development and Disorders; National Clinical Research Center for Child Health and Disorders; China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing, 400014, PR China
| | - Lianju Shen
- Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Chongqing, 400014, PR China; Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering; Chongqing Key Laboratory of Pediatrics; Ministry of Education Key Laboratory of Child Development and Disorders; National Clinical Research Center for Child Health and Disorders; China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing, 400014, PR China
| | - Shengde Wu
- Department of Urology, Children's Hospital of Chongqing Medical University, Chongqing, 400014, PR China; Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering; Chongqing Key Laboratory of Pediatrics; Ministry of Education Key Laboratory of Child Development and Disorders; National Clinical Research Center for Child Health and Disorders; China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing, 400014, PR China.
| | - Guanghui Wei
- Department of Urology, Children's Hospital of Chongqing Medical University, Chongqing, 400014, PR China; Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering; Chongqing Key Laboratory of Pediatrics; Ministry of Education Key Laboratory of Child Development and Disorders; National Clinical Research Center for Child Health and Disorders; China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing, 400014, PR China
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Ye X, Chen L. Protective role of autophagy in triptolide-induced apoptosis of TM3 Leydig cells. J Transl Int Med 2023; 11:265-274. [PMID: 37662886 PMCID: PMC10474888 DOI: 10.2478/jtim-2021-0051] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Background and Objectives Triptolide (TP) is known to impair testicular development and spermatogenesis in mammals, but the mechanism of the side effects still needs to be investigated. The aim of the research is to confirm whether TP can cause autophagy in TM3 Leydig cells and the potential molecular pathway in vitro. Methods TM3 Leydig cells are used to investigate the molecular pathway through Western blot, detection of apoptosis, transmission electron microscopy for autophagosomes and so on. Results The data show that TP treatment resulted in the decreasing of the viability of TM3 cells due to the increased apoptosis. Treated with TP, the formation of autophagosomes, the decrease in P62, and the increase in the conversion of LC3-I to LC3-II suggested the induction of autophagy. The induction of autophagy has accompanied the activation of the mTOR/P70S6K signal pathway. The viability of the TM3 cells was further inhibited when they were co-treated with autophagy inhibitor, chloroquine (CQ). Conclusion All these data suggest that autophagy plays a very important role in antagonizing TM3 cell apoptosis during the TP exposure.
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Affiliation(s)
- Xiaoyun Ye
- Medical Center of Reproductive and Genetics, Peking University First Hospital, Beijing100034, China
| | - Liang Chen
- Medical Center of Reproductive and Genetics, Peking University First Hospital, Beijing100034, China
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13
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Zhang M, Nie J, Chen Y, Li X, Chen H. Connecting the Dots: N6-Methyladenosine (m 6 A) Modification in Spermatogenesis. Adv Biol (Weinh) 2023; 7:e2300068. [PMID: 37353958 DOI: 10.1002/adbi.202300068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 05/20/2023] [Indexed: 06/25/2023]
Abstract
N6-methyladenosine (m6 A) is the most common RNA modification found in eukaryotes and is involved in multiple biological processes, including neuronal development, tumorigenesis, and gametogenesis. It is well known that methylation-modifying enzymes (classified into writers, erasers, and readers) mediate catalysis, clearance, and recognition of m6 A. Recent studies suggest that these genes may be associated with spermatogenesis. Numerous studies have revealed the m6 A role during spermatogenesis. However, the expression patterns and relationships of these m6 A enzymes during various stages of spermatogenesis remain unknown. In this review, it is aimed to provide an overview of m6 A enzyme functions and elucidate their potential mechanisms and regulatory relationships at a specific phase during spermatogenesis, providing new insights into the m6 A modification underlying the spermatogenesis process.
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Affiliation(s)
- Mengya Zhang
- Institute of Reproductive Medicine, Medical School, Nantong University, Nantong, 226000, China
| | - Junyu Nie
- Institute of Reproductive Medicine, Medical School, Nantong University, Nantong, 226000, China
| | - Yufei Chen
- Institute of Reproductive Medicine, Medical School, Nantong University, Nantong, 226000, China
| | - Xiaofeng Li
- Department of Laboratory Medicine, Peking University Shenzhen Hospital, Lianhua Road No. 1120, Futian District, Shenzhen, Guangdong Province, 518000, P. R. China
| | - Hao Chen
- Institute of Reproductive Medicine, Medical School, Nantong University, Nantong, 226000, China
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14
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Hong Y, Zhou X, Li Q, Chen J, Wei Y, Shen L, Long C, Wu S, Wei G. Epigallocatechin gallate alleviates mono-2-ethylhexyl phthalate-induced male germ cell pyroptosis by inhibiting the ROS/mTOR/NLRP3 pathway. Toxicol In Vitro 2023:105626. [PMID: 37286014 DOI: 10.1016/j.tiv.2023.105626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 05/10/2023] [Accepted: 05/31/2023] [Indexed: 06/09/2023]
Abstract
Mono-2-ethylhexyl phthalate (MEHP) exposure is known to induce severe testicular injury via reactive oxygen species (ROS). However, few effective treatments are available for the precise treatment of MEHP-induced germ cell damage. Epigallocatechin gallate (EGCG), one of the major polyphenols in green tea, has potential antioxidant activity and can alleviate many diseases induced by oxidative stress. This study explored whether EGCG protects germ cells from MEHP-induced oxidative stress damage. Cells were treated with 400 μM MEHP and 60 μM EGCG for 24 h. EGCG reduced MEHP-induced ROS overgeneration in the spermatogonial cell line GC-1 and spermatocyte cell line GC-2. Western blotting and immunofluorescence showed that the MEHP+EGCG group exhibited lower nuclear factor (erythroid-derived 2)-like 2 (NRF2), heme oxygenase (decycling) 1 (HO-1), and superoxide dismutase (SOD) expression than the MEHP group. Moreover, activation of the mammalian target of rapamycin (mTOR) pathway was decreased. The expression of key factors of pyroptosis was downregulated, and interleukin-10 (IL-10) expression was reduced. Additionally, apoptosis was inhibited by EGCG. The findings indicate that EGCG protects against MEHP-induced germ cell pyroptosis by scavenging ROS, suppressing the mTOR pathway, and inhibiting pyroptosis. EGCG may thus be a potential treatment for MEHP-related spermatogenic dysfunction.
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Affiliation(s)
- Yifan Hong
- Department of Urology, Children's Hospital of Chongqing Medical University, Chongqing 400014, PR China; Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Chongqing 400014, PR China; Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Chongqing Key Laboratory of Pediatrics, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing 400014, PR China
| | - Xiazhu Zhou
- Department of Urology, Children's Hospital of Chongqing Medical University, Chongqing 400014, PR China; Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Chongqing 400014, PR China; Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Chongqing Key Laboratory of Pediatrics, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing 400014, PR China
| | - Qi Li
- Department of Urology, Children's Hospital of Chongqing Medical University, Chongqing 400014, PR China; Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Chongqing 400014, PR China; Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Chongqing Key Laboratory of Pediatrics, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing 400014, PR China
| | - Jing Chen
- Department of Urology, Children's Hospital of Chongqing Medical University, Chongqing 400014, PR China; Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Chongqing 400014, PR China; Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Chongqing Key Laboratory of Pediatrics, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing 400014, PR China
| | - Yuexin Wei
- Department of Urology, Children's Hospital of Chongqing Medical University, Chongqing 400014, PR China; Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Chongqing Key Laboratory of Pediatrics, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing 400014, PR China
| | - Lianju Shen
- Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Chongqing 400014, PR China; Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Chongqing Key Laboratory of Pediatrics, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing 400014, PR China
| | - Chunlan Long
- Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Chongqing 400014, PR China; Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Chongqing Key Laboratory of Pediatrics, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing 400014, PR China.
| | - Shengde Wu
- Department of Urology, Children's Hospital of Chongqing Medical University, Chongqing 400014, PR China; Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Chongqing Key Laboratory of Pediatrics, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing 400014, PR China
| | - Guanghui Wei
- Department of Urology, Children's Hospital of Chongqing Medical University, Chongqing 400014, PR China; Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Chongqing Key Laboratory of Pediatrics, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing 400014, PR China
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15
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Zheng X, Chen J, Kang L, Wei Y, Wu Y, Hong Y, Wang X, Li D, Shen L, Long C, Wei G, Wu S. Prepubertal exposure to copper oxide nanoparticles induces Leydig cell injury with steroidogenesis disorders in mouse testes. Biochem Biophys Res Commun 2023; 654:62-72. [PMID: 36889036 DOI: 10.1016/j.bbrc.2023.02.067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 02/21/2023] [Accepted: 02/24/2023] [Indexed: 02/27/2023]
Abstract
Copper oxide nanoparticles (CuONPs) are metallic multifunctional nanoparticles with good conductive, catalytic and antibacterial characteristics that have shown to cause reproductive dysfunction. However, the toxic effect and potential mechanisms of prepubertal exposure to CuONPs on male testicular development have not been clarified. In this study, healthy male C57BL/6 mice received 0, 10, and 25 mg/kg/d CuONPs by oral gavage for 2 weeks (postnatal day 22-35). The testicular weight was decreased, testicular histology was disturbed and the number of Leydig cells was reduced in all CuONPs-exposure groups. Transcriptome profiling suggested steroidogenesis was impaired after exposure to CuONPs. The steroidogenesis-related genes mRNA expression level, concentration of serum steroids hormones and the HSD17B3-, STAR- and CYP11A1-positive Leydig cell numbers were dramatically reduced. In vitro, we exposed TM3 Leydig cells to CuONPs. Bioinformatic analysis, flow cytometry analysis and western blotting analysis confirmed that CuONPs can dramatically reduce Leydig cells viability, enhance apoptosis, trigger cell cycle arrest and reduce cell testosterone levels. U0126 (ERK1/2 inhibitor) significantly reversed TM3 Leydig cells injury and testosterone level decrease induced by CuONPs. These outcomes indicate that CuONPs exposure activates the ERK1/2 signaling pathway, which further promotes apoptosis and cell cycle arrest in TM3 Leydig cells, and ultimately leads to Leydig cells injury and steroidogenesis disorders.
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Affiliation(s)
- Xiangqin Zheng
- Department of Urology, Children's Hospital of Chongqing Medical University, Chongqing, 400014, China; Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Ministry of Education Key Laboratory of Child Development and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, National Clinical Research Center for Child Health and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing, 400014, China
| | - Jiadong Chen
- Department of Urology, Children's Hospital of Chongqing Medical University, Chongqing, 400014, China; Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Ministry of Education Key Laboratory of Child Development and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, National Clinical Research Center for Child Health and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing, 400014, China
| | - Lian Kang
- Department of Urology, Children's Hospital of Chongqing Medical University, Chongqing, 400014, China; Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Ministry of Education Key Laboratory of Child Development and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, National Clinical Research Center for Child Health and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing, 400014, China
| | - Yuexin Wei
- Department of Urology, Children's Hospital of Chongqing Medical University, Chongqing, 400014, China; Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Ministry of Education Key Laboratory of Child Development and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, National Clinical Research Center for Child Health and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing, 400014, China
| | - Yuhao Wu
- Department of Urology, Children's Hospital of Chongqing Medical University, Chongqing, 400014, China; Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Ministry of Education Key Laboratory of Child Development and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, National Clinical Research Center for Child Health and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing, 400014, China
| | - Yifan Hong
- Department of Urology, Children's Hospital of Chongqing Medical University, Chongqing, 400014, China; Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Ministry of Education Key Laboratory of Child Development and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, National Clinical Research Center for Child Health and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing, 400014, China
| | - Xia Wang
- Department of Urology, Children's Hospital of Chongqing Medical University, Chongqing, 400014, China; Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Ministry of Education Key Laboratory of Child Development and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, National Clinical Research Center for Child Health and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing, 400014, China
| | - Dinggang Li
- Department of Urology, Children's Hospital of Chongqing Medical University, Chongqing, 400014, China; Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Ministry of Education Key Laboratory of Child Development and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, National Clinical Research Center for Child Health and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing, 400014, China
| | - Lianju Shen
- Department of Urology, Children's Hospital of Chongqing Medical University, Chongqing, 400014, China; Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Ministry of Education Key Laboratory of Child Development and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, National Clinical Research Center for Child Health and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing, 400014, China
| | - Chunlan Long
- Department of Urology, Children's Hospital of Chongqing Medical University, Chongqing, 400014, China; Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Ministry of Education Key Laboratory of Child Development and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, National Clinical Research Center for Child Health and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing, 400014, China
| | - Guanghui Wei
- Department of Urology, Children's Hospital of Chongqing Medical University, Chongqing, 400014, China; Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Ministry of Education Key Laboratory of Child Development and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, National Clinical Research Center for Child Health and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing, 400014, China
| | - Shengde Wu
- Department of Urology, Children's Hospital of Chongqing Medical University, Chongqing, 400014, China; Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Ministry of Education Key Laboratory of Child Development and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, National Clinical Research Center for Child Health and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing, 400014, China.
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16
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Han L, Wang J, Zhang L, Jing J, Zhang W, Liu Z, Gao A. The role of N 6-methyladenosine modification in benzene-induced testicular damage and the protective effect of melatonin. CHEMOSPHERE 2023; 319:138035. [PMID: 36736484 DOI: 10.1016/j.chemosphere.2023.138035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Revised: 01/11/2023] [Accepted: 01/30/2023] [Indexed: 06/18/2023]
Abstract
Benzene is a universal ambient pollutant. Population-based studies have shown that benzene exposure affects male fertility. However, the mechanism of benzene-induced reproductive toxicity is unknown. Here, we established a dynamic inhalation model and exposed C57BL/6J mice to 0, 10, and 50 ppm benzene (6 h/day, 6 days/week, 7 weeks). Our study revealed that benzene exposure caused testicular injury, including structural damage to spermatogenic tubules, reduced semen quality, and decreased testosterone levels. In addition, the decrease in the global level of N6-Methyladenosine (m6A) and the change of m6A important regulatory enzymes in mice testes suggested that m6A was involved in the benzene-induced testicular injury. Further genome-wide m6A methylation analysis showed that 1469 differential m6A peaks were present in the testes of control and benzene groups, indicating that benzene exposure modulated m6A methylation in testes. Furthermore, the comprehensive analysis of m6A-sequencing and transcriptome revealed that hypermethylated Rara and its consequent reduced expression impaired the sperm production process. In particular, melatonin alleviated benzene-induced testicular injury by modulating m6A-related genes. Overall, our research provides a new idea and fundamental knowledge into the possible mechanisms of m6A modifications in benzene-induced testicular impairment, as well as a new experimental basis for benzene-induced male fertility therapy.
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Affiliation(s)
- Lin Han
- Department of Occupational Health and Environmental Health, School of Public Health, Capital Medical University, Beijing, 100069, PR China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069, PR China
| | - Jingyu Wang
- Department of Occupational Health and Environmental Health, School of Public Health, Capital Medical University, Beijing, 100069, PR China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069, PR China
| | - Lei Zhang
- Department of Occupational Health and Environmental Health, School of Public Health, Capital Medical University, Beijing, 100069, PR China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069, PR China
| | - Jiaru Jing
- Department of Occupational Health and Environmental Health, School of Public Health, Capital Medical University, Beijing, 100069, PR China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069, PR China
| | - Wei Zhang
- Department of Occupational Health and Environmental Health, School of Public Health, Capital Medical University, Beijing, 100069, PR China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069, PR China
| | - Ziyan Liu
- Department of Occupational Health and Environmental Health, School of Public Health, Capital Medical University, Beijing, 100069, PR China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069, PR China
| | - Ai Gao
- Department of Occupational Health and Environmental Health, School of Public Health, Capital Medical University, Beijing, 100069, PR China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069, PR China.
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17
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Li JZ, Zhou SM, Yuan WB, Chen HQ, Zeng Y, Fan J, Zhang Z, Wang N, Cao J, Liu WB. RNA binding protein YTHDF1 mediates bisphenol S-induced Leydig cell damage by regulating the mitochondrial pathway of BCL2 and the expression of CDK2-CyclinE1. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 321:121144. [PMID: 36702435 DOI: 10.1016/j.envpol.2023.121144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Revised: 01/18/2023] [Accepted: 01/22/2023] [Indexed: 06/18/2023]
Abstract
Bisphenol S (BPS) causes reproductive adverse effects on humans and animals. However, the detailed mechanism is still unclear. This research aimed to clarify the role of RNA binding protein YTHDF1 in Leydig cell damage induced by BPS. The mouse TM3 Leydig cells were exposed to BPS of 0, 20, 40, and 80 μmol/L for 72 h. Results showed that TM3 Leydig cells apoptosis rate markedly increased in BPS exposure group. Meanwhile, the apoptosis-related molecule BCL2 protein level decreased significantly, and Caspase9, Caspase3, and BAX increased significantly. Moreover, the cell cycle was blocked in the G1/S phase, CDK2 and CyclinE1 were considerably down-regulated in BPS exposure groups, and the protein level of RNA binding protein YTHDF1 decreased sharply. Furthermore, after overexpression of YTHDF1, the cell viability significantly increased, and the apoptosis rate significantly decreased in TM3 Leydig cells. In the meantime, BCL2, CDK2, and CyclinE1 were significantly up-regulated, and BAX, Caspase9, and Caspase3 were significantly down-regulated. Conversely, interference with YTHDF1 decreased cell proliferation and promoted apoptosis. Importantly, overexpression of YTHDF1 alleviated the cell viability decrease induced by BPS, and interference with YTHDF1 exacerbated the situation. RIP assays showed that the binding of YTHDF1 to CDK2, CyclinE1, and BCL2 significantly increased after overexpressing YTHDF1. Collectively, our study suggested that YTHDF1 plays an essential role in BPS-induced TM3 Leydig cell damage by regulating CDK2-CyclinE1 and BCL2 mitochondrial pathway at the translational level.
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Affiliation(s)
- Jing-Zhi Li
- Institute of Toxicology, College of Preventive Medicine, Third Military Medical University (Army Medical University), Chongqing, 400038, China
| | - Shi-Meng Zhou
- Institute of Toxicology, College of Preventive Medicine, Third Military Medical University (Army Medical University), Chongqing, 400038, China; School of Public Health, China Medical University, Shenyang, Liaoning, 110122, China
| | - Wen-Bo Yuan
- Institute of Toxicology, College of Preventive Medicine, Third Military Medical University (Army Medical University), Chongqing, 400038, China
| | - Hong-Qiang Chen
- Institute of Toxicology, College of Preventive Medicine, Third Military Medical University (Army Medical University), Chongqing, 400038, China; Department of Environmental Health, College of Preventive Medicine, Third Military Medical University (Army Medical University), Chongqing, 400038, China
| | - Yong Zeng
- Institute of Toxicology, College of Preventive Medicine, Third Military Medical University (Army Medical University), Chongqing, 400038, China; Department of Environmental Health, College of Preventive Medicine, Third Military Medical University (Army Medical University), Chongqing, 400038, China
| | - Jun Fan
- Institute of Toxicology, College of Preventive Medicine, Third Military Medical University (Army Medical University), Chongqing, 400038, China
| | - Zhe Zhang
- Institute of Toxicology, College of Preventive Medicine, Third Military Medical University (Army Medical University), Chongqing, 400038, China
| | - Na Wang
- Department of Environmental Health, College of Preventive Medicine, Third Military Medical University (Army Medical University), Chongqing, 400038, China; School of Public Health, Guizhou Medical University, Guiyang, Guizhou, 550025, China
| | - Jia Cao
- Institute of Toxicology, College of Preventive Medicine, Third Military Medical University (Army Medical University), Chongqing, 400038, China
| | - Wen-Bin Liu
- Institute of Toxicology, College of Preventive Medicine, Third Military Medical University (Army Medical University), Chongqing, 400038, China; Department of Environmental Health, College of Preventive Medicine, Third Military Medical University (Army Medical University), Chongqing, 400038, China.
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18
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Zhu X, Fu H, Sun J, Xu Q. Interaction between N6-methyladenosine (m6A) modification and environmental chemical-induced diseases in various organ systems. Chem Biol Interact 2023; 373:110376. [PMID: 36736874 DOI: 10.1016/j.cbi.2023.110376] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Revised: 01/18/2023] [Accepted: 01/30/2023] [Indexed: 02/04/2023]
Abstract
A wide variety of chemicals are ubiquitous in the environment and thus exposure to these environmental chemicals poses a serious threat to public health. Particularly, environmental factors such as air pollution, heavy metals, and endocrine-disrupting chemicals (EDCs) can lead to diseases in various organ systems. Recent research in environmental epigenetics has demonstrated that N6-methyladenosine (m6A) modification is a key mechanism of environment-related diseases. m6A modification is the most abundant chemical modification in mRNAs, which can specifically regulate gene expression by affecting RNA translation, stability, processing, and nuclear export. In this review, we discussed how environmental chemicals affected m6A modification and mediated environment-related disease occurrence by classifying the diseases of various systems. Here, we conclude that environmental chemicals alter the levels of m6A and its modulators, which then participate in the occurrence of diseases in various systems by regulating gene expression and downstream signaling pathways such as METTL3/m6A ZBTB4/YTHDF2/EZH2, Foxo3a/FTO/m6A ephrin-B2/YTHDF2, and HIF1A/METTL3/m6A BIRC5/IGF2BP3/VEGFA. Considering the significant role of m6A and its modulators in response to environmental chemicals, they are expected to be used as biomarkers of environment-related diseases. Additionally, targeting m6A modulators using small molecule inhibitors and activators is expected to be a new method for the treatment of environment-related diseases. This review systematically and comprehensively clarifies the important role of m6A in diseases caused by environmental chemicals, thus establishing a scientific basis for the treatment of diseases in various organ systems.
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Affiliation(s)
- Xiaofang Zhu
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, No. 87 Ding jia qiao Road, Gulou District, Nanjing, 210009, China
| | - Haowei Fu
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, No. 87 Ding jia qiao Road, Gulou District, Nanjing, 210009, China
| | - Jiahui Sun
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, No. 87 Ding jia qiao Road, Gulou District, Nanjing, 210009, China
| | - Qian Xu
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, No. 87 Ding jia qiao Road, Gulou District, Nanjing, 210009, China.
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19
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Zhang M, Shi J, Deng H. Transcriptome-wide m6A modification mediates cardiotoxicity in mice after chronic exposure to microplastics. CHEMOSPHERE 2023; 317:137877. [PMID: 36649893 DOI: 10.1016/j.chemosphere.2023.137877] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Revised: 01/11/2023] [Accepted: 01/13/2023] [Indexed: 06/17/2023]
Abstract
The widespread presence of microplastics (MPs) has garnered attention owing to their possible adverse effects. However, the cardiotoxicity of MPs and their underlying mechanism remains unclear. N6-methyladenosine (m6A) modification contributes to post-transcriptional modulation of gene expression, but whether this modification is relevant to MP-induced cardiotoxicity is unknown. First, we detected damage to the myocardial tissue among MP-exposed and -unexposed (control) mice by staining them with hematoxylin and eosin, Masson trichrome, and Oil Red O. Then, we comprehensively measured the transcriptome-wide m6A methylome and m6A-altered genes using high-throughput sequencing assays, such as methylated RNA immunoprecipitation sequencing and RNA sequencing. Our data indicated MP-induced myocardial inflammatory injury and histological alterations in vivo, evidenced by the severity of cardiac fibrosis and increased lipid accumulation. We found 878 increased and 316 decreased methylation peaks mostly distributed in the 3' UTR among the MP-exposed group compared with the control group. We found 779 upregulated and 340 downregulated genes in the MP-exposed group. In addition, conjoint analysis of results from the two high-throughput sequencings showed that 109 and 11 hypermethylated genes were upregulated and downregulated, respectively; 12 and 21 hypomethylated genes were upregulated and downregulated, respectively. Results of the cross-link analysis showed that several potential signals, such as ECM-receptor interactions, cell adhesion molecules, cytokine-cytokine receptor interactions, and NF-κB signaling, contributed to MP-induced cardiotoxicity. Our findings indicated that m6A modifications of genes were involved in MP-induced cardiotoxicity and reported new information regarding the chronic cardiotoxicity caused by MP exposure in mice.
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Affiliation(s)
- Min Zhang
- Division of Cardiology, Hongqiao International Institute of Medicine, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, 200336, China.
| | - Jun Shi
- Shanghai Institute of Pollution Control and Ecological Security, Key Laboratory of Yangtze River Water Environment Ministry of Education, College of Environmental Science and Engineering, Tongji University, Shanghai, China
| | - Huiping Deng
- Shanghai Institute of Pollution Control and Ecological Security, Key Laboratory of Yangtze River Water Environment Ministry of Education, College of Environmental Science and Engineering, Tongji University, Shanghai, China
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20
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Fu H, Zhu X, Di Q, Sun J, Jiang Q, Xu Q. m6A contributes to a pro-survival state in GC-2 cells by facilitating DNA damage repair: Novel perspectives on the mechanism underlying DEHP genotoxicity in male germ cells. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 859:160432. [PMID: 36423848 DOI: 10.1016/j.scitotenv.2022.160432] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Revised: 11/18/2022] [Accepted: 11/19/2022] [Indexed: 06/16/2023]
Abstract
Di(2-ethyl-hexyl) phthalate (DEHP), an environmental endocrine disruptor, can destroy the sperm genomic integrity and impairs spermatogenesis. N6-methyladenosine (m6A) is involved in the cellular effects of DEHP. However, the genotoxic effect of DEHP on spermatocytes and the possible role of m6A in this process remain unclear. This study demonstrated that m6A alleviates DEHP genotoxicity in GC-2 cells. In DEHP-treated mice, DNA double-strand breaks (DSBs) were induced in the testis and spermatocytes. To further explore the molecular mechanism of DEHP genotoxicity on spermatocytes, GC-2 cells were exposed to DEHP. DEHP produced distinct genotoxicity and caused DSBs, which led to the inhibition of DNA synthesis and cell cycle arrest. The DNA damage response (DDR) was initiated to repair the DSBs induced by environmentally relevant levels of DEHP (100 μM and 200 μM). During this process, METTL3 upregulated m6A, which facilitated the DDR via stabilizing the DNA damage repair factors (Rad51 and Xrcc5) mRNA to maintain the pro-survival state. Moreover, Mettl3 knockdown partially inhibited DDR. Interestingly, high-dose DEHP (400 μM and 600 μM) directly induced apoptosis rather than the pro-survival state. Altogether: METTL3-mediated m6A participates in maintaining the pro-survival state by upregulating DDR, providing guidance for mitigating the genotoxicity of environment-related level DEHP exposure.
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Affiliation(s)
- Haowei Fu
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing 210009, China
| | - Xiaofang Zhu
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing 210009, China
| | - Qiannan Di
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing 210009, China
| | - Jiahui Sun
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing 210009, China
| | - Qianqian Jiang
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing 210009, China
| | - Qian Xu
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing 210009, China.
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21
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Sun J, Li M, Xiong Y, Zhai L, Zhao J. Oxidative Stress Mediated by N6-Methyladenosine Methylation Contributes to High-Fat Diet Induced Male Reproductive Dysfunction. Mol Nutr Food Res 2023; 67:e2101052. [PMID: 36738079 DOI: 10.1002/mnfr.202101052] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Revised: 10/26/2022] [Indexed: 02/05/2023]
Abstract
OBJECTIVE To determine the mechanism of oxidative stress mediated by N6-methyladenosine (m6A) methylation contributing to high fat diet-induced reproductive dysfunction. RESULTS In vivo, compared with those in the Control group, the sperm count and sperm motility decrease significantly; the testosterone, luteinizing hormone levels, hyaluronidase, acrosomal enzyme levels, and total antioxidant capacity decrease significantly; malondialdehyde increases significantly in the DIO and DIO-R groups. The expression of nuclear factor erythroid 2-related factor 2 (Nrf2), superoxide dismutase 1 (SOD1), and NAD(P)H quinone dehydrogenase 1 (NQO1) decreases significantly in the DIO and DIO-R groups; m6A levels in testis tissue in the DIO and DIO-R groups increase; the enrichment of m6A-modified Nrf2 mRNA in testis in the DIO group and DIO-R group increases significantly. Also the m6A regulatory proteins increase significantly in the DIO group and DIO-R group. In vitro, compared to palmitic acid treated cells, the reactive oxygen species (ROS) level significantly decreases in STM2457, S-Adenosylhomocysteine treated cells and YTHDC2, YTHDF2 gene silence cells; however, Nrf2 expression increases in all treated cells. In addition, m6A expression decreases. CONCLUSIONS Oxidative stress mediates by methylation of m6A may contribute to high fat diet-induced male reproductive dysfunction.
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Affiliation(s)
- Jingyi Sun
- Department of Pharmacology, Shenyang Pharmaceutical University, No.103, Wenhua Rd, Shenhe Dist, Shenyang, 110016, China
| | - Mujiao Li
- Department of Pharmacology, Shenyang Pharmaceutical University, No.103, Wenhua Rd, Shenhe Dist, Shenyang, 110016, China
| | - Yuting Xiong
- Department of Pharmacology, Shenyang Pharmaceutical University, No.103, Wenhua Rd, Shenhe Dist, Shenyang, 110016, China
| | - Lingling Zhai
- Department of Maternal and Child Health, School of Public Health, China Medical University, No.77 Puhe Road, Shenbei District, Shenyang, 110122, China
| | - Jian Zhao
- Department of Pharmacology, Shenyang Pharmaceutical University, No.103, Wenhua Rd, Shenhe Dist, Shenyang, 110016, China
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22
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Zhou SM, Yuan WB, Li JZ, Chen HQ, Zeng Y, Wang N, Fan J, Zhang Z, Xu Y, Cao J, Liu WB. TET1 involved in bisphenol A induced TM3 Leydig cell toxicity by regulating Cav3.3 hydroxymethylation. CHEMOSPHERE 2023; 312:137171. [PMID: 36370755 DOI: 10.1016/j.chemosphere.2022.137171] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Revised: 11/03/2022] [Accepted: 11/05/2022] [Indexed: 06/16/2023]
Abstract
Bisphenol A (BPA), an important environmental pollutant, is known to damage reproductive development. However, the underlying epigenetic mechanism in Leydig cells during BPA exposure has not been explored in detail. In this study, TM3 Leydig cells were treated with BPA (0, 20, 40 and 80 μM) for 72 h. The differentially expressed TET1 cell model was constructed to explore the mechanism of BPA-induced cytotoxicity. Results showed that BPA exposure significantly inhibited cell viability and increased apoptosis of TM3 Leydig cells. Meanwhile, the mRNA of TET1, Cav3.2 and Cav3.3 decreased significantly with the increase of BPA exposure. Importantly, TET1 significantly promoted proliferation of TM3 Leydig cells and inhibited apoptosis. Differentially expressed TET1 significantly affected BPA-induced toxicity in TM3 Leydig cells. Notably, TET1 elevated the mRNA levels of Cav3.2 and Cav3.3. MeDIP and hMeDIP confirmed that TET1 regulated the expression of Cav3.3 through DNA hydroxymethylation. Our study firstly presented that TET1 participated in BPA-induced toxicity in TM3 Leydig cells through regulating Cav3.3 hydroxymethylation modification. These findings suggest that TET1 acts as a potential epigenetic marker for reproductive toxicity induced by BPA exposure and may provide a new direction for the research on male reproductive damage.
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Affiliation(s)
- Shi-Meng Zhou
- School of Public Health, China Medical University, Shenyang, Liaoning, 110122, China; Institute of Toxicology, College of Preventive Medicine, Third Military Medical University (Army Medical University), Chongqing, 400038, China
| | - Wen-Bo Yuan
- Institute of Toxicology, College of Preventive Medicine, Third Military Medical University (Army Medical University), Chongqing, 400038, China
| | - Jing-Zhi Li
- Institute of Toxicology, College of Preventive Medicine, Third Military Medical University (Army Medical University), Chongqing, 400038, China
| | - Hong-Qiang Chen
- Institute of Toxicology, College of Preventive Medicine, Third Military Medical University (Army Medical University), Chongqing, 400038, China; Department of Environmental Health, College of Preventive Medicine, Third Military Medical University (Army Medical University), Chongqing, 400038, China
| | - Yong Zeng
- Institute of Toxicology, College of Preventive Medicine, Third Military Medical University (Army Medical University), Chongqing, 400038, China; Department of Environmental Health, College of Preventive Medicine, Third Military Medical University (Army Medical University), Chongqing, 400038, China
| | - Na Wang
- Department of Environmental Health, College of Preventive Medicine, Third Military Medical University (Army Medical University), Chongqing, 400038, China; School of Public Health, Guizhou Medical University, Guiyang, Guizhou, 550025, China
| | - Jun Fan
- Department of Breast and Thyroid Surgery, Daping Hospital, Third Military Medical University (Army Medical University), Chongqing, 400042, China
| | - Zhe Zhang
- Department of Breast and Thyroid Surgery, Daping Hospital, Third Military Medical University (Army Medical University), Chongqing, 400042, China
| | - Yuanyuan Xu
- School of Public Health, China Medical University, Shenyang, Liaoning, 110122, China.
| | - Jia Cao
- Institute of Toxicology, College of Preventive Medicine, Third Military Medical University (Army Medical University), Chongqing, 400038, China.
| | - Wen-Bin Liu
- Institute of Toxicology, College of Preventive Medicine, Third Military Medical University (Army Medical University), Chongqing, 400038, China; Department of Environmental Health, College of Preventive Medicine, Third Military Medical University (Army Medical University), Chongqing, 400038, China.
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Ling Y, Huang X, Li A, Zhang J, Chen J, Ren J, Liu Y, Xie M. Bisphenol A exposure induces testicular oxidative damage via FTO/m6A/Nrf2 axis during postnatal development in mice. J Appl Toxicol 2022; 43:694-705. [PMID: 36451259 DOI: 10.1002/jat.4417] [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: 05/11/2022] [Revised: 10/30/2022] [Accepted: 11/15/2022] [Indexed: 12/03/2022]
Abstract
Bisphenol A (BPA), a commonly used plasticizer in the production of polycarbonate plastics and epoxy resins, has been shown to induce male reproductive toxicity. However, the effects of BPA exposure on early testicular development have not been thoroughly studied, and the underlying mechanism is yet to be elucidated. In the current study, neonatal male mice were exposed to BPA at 0, 0.1, and 5 mg/kg, respectively, by daily subcutaneous injection during postnatal day (PND) 1-35 to explore its effects on testicular development at PND 36 (the end of the first round of spermatogenesis). Morphological analyses showed that BPA exposure significantly induced apoptosis of testicular cells (p < 0.01 and p < 0.001) and reduced the thickness of seminiferous epithelium (p < 0.01). In addition, BPA exposure significantly decreased the total antioxidant capacity of testes and levels of transcription factor Nrf2 as well as its downstream antioxidant molecules of NQO1 and GPx-1 (p < 0.05 and p < 0.01). Furthermore, global m6A modifications of mRNAs were upregulated accompanied by declined m6A demethylase (FTO) in the testes of BPA groups (p < 0.05 and p < 0.01). MeRIP-quantitative real-time polymerase chain reaction (qPCR) demonstrated that BPA exposure markedly increased the m6A modification of Nrf2 mRNA (p < 0.05 and p < 0.01). These findings suggest that upregulation of m6A induced by inhibited FTO may be involved in BPA-induced testicular oxidative stress and developmental injury during postnatal development, which provides a new idea to reveal the mechanism underlying BPA interfering with testicular development.
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Affiliation(s)
- Yuanchao Ling
- School of Life Science and Technology, Weifang Medical University, Weifang, China
| | - Xiaodi Huang
- School of Life Science and Technology, Weifang Medical University, Weifang, China
| | - Anlong Li
- School of Life Science and Technology, Weifang Medical University, Weifang, China
| | - Jinzhi Zhang
- School of Life Science and Technology, Weifang Medical University, Weifang, China
| | - Jianmei Chen
- School of Life Science and Technology, Weifang Medical University, Weifang, China
| | - Jiale Ren
- School of Life Science and Technology, Weifang Medical University, Weifang, China
| | - Yanan Liu
- School of Life Science and Technology, Weifang Medical University, Weifang, China
| | - Meina Xie
- School of Life Science and Technology, Weifang Medical University, Weifang, China
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Feng Y, Liu T, Xu S, Ren Y, Ge Y, Yin L, Pu Y, Liang G. The role of N6-methyladenosine methylation in environmental exposure-induced health damage. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:69153-69175. [PMID: 35951238 DOI: 10.1007/s11356-022-22093-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2022] [Accepted: 07/14/2022] [Indexed: 06/15/2023]
Abstract
The health risks caused by environmental pollution have long been of substantial concern. With the development of epigenetics, a large number of studies have demonstrated that N6-methyladenosine (m6A) modification is involved in the regulation of various important life activities associated with various diseases. Recent studies have revealed that m6A plays a key role in health damage caused by environmental exposure by regulating post-transcriptional gene expression. Therefore, our study outlined the effects of environmental pollutant exposure on m6A methylation and its regulator levels. Moreover, we found that m6A methylation modifications were involved in the development of various health damages by regulating important life activities in vivo, such as reactive oxygen species imbalance, apoptosis, epithelial-mesenchymal transition (EMT), and inflammatory processes. More importantly, we delved into the regulatory mechanisms of m6A methylation dysregulation in environmental pollution-induced diseases. Finally, by examining the published literature, we found that methyltransferase-like protein 3 (METTL3) and fat mass- and obesity-associated protein (FTO) were potentially used as biomarkers of health damage induced by particulate matter exposure and heavy metal exposure, respectively. The current studies on regulators of METTL3 and FTO were more promising to bring new perspectives for the treatment of environmental health-related diseases.
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Affiliation(s)
- Yanlu Feng
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, 210009, Jiangsu, People's Republic of China
| | - Tong Liu
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, 210009, Jiangsu, People's Republic of China
| | - Siyi Xu
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, 210009, Jiangsu, People's Republic of China
| | - Yiyi Ren
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, 210009, Jiangsu, People's Republic of China
| | - Yiling Ge
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, 210009, Jiangsu, People's Republic of China
| | - Lihong Yin
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, 210009, Jiangsu, People's Republic of China
| | - Yuepu Pu
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, 210009, Jiangsu, People's Republic of China
| | - Geyu Liang
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, 210009, Jiangsu, People's Republic of China.
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Zhu X, Fu H, Sun J, Di Q, Xu Q. N6-methyladenosine modification on Hmbox1 is related to telomere dysfunction in DEHP-induced male reproductive injury. Life Sci 2022; 309:121005. [PMID: 36174712 DOI: 10.1016/j.lfs.2022.121005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Revised: 09/12/2022] [Accepted: 09/23/2022] [Indexed: 11/19/2022]
Abstract
AIMS Di (2-ethylhexyl) phthalate (DEHP), as an environmental endocrine-disrupting chemical (EDC), can induce male reproductive injury. N6-methyladenosine (m6A) plays a vital role in environmental exposure-induced diseases by regulating gene expression. Therefore, we aim to investigate the role of m6A in DEHP-induced reproductive injury. MAIN METHODS We established an in vivo model of mice exposed to DEHP to explore the effect of DEHP on reproductive injury and m6A. To further explore the molecular mechanism of DEHP toxicity, we built a model of GC-2 cells exposed to mono-(2-ethylhexyl) phthalate (MEHP) in vitro and further silenced Mettl3 in GC-2cells. Besides, we also conducted MeRIP-qPCR and RIP assays to identify the target genes for m6A modification. KEY FINDINGS DEHP induced testicular injury and senescence. And telomeres shortening, reduced levels of telomere repeat-binding factor 1 (TRF1), TRF2, protection of telomeres 1 (POT1), and telomerase reverse transcriptase (TERT) can be observed in DEHP-treated testes. MEHP also induced GC-2 cellular senescence and telomere dysfunction. Besides, increased m6A mediated by METTL3 stabilized homeobox containing 1 (Hmbox1) in an m6A-dependent manner in MEHP-exposed GC-2 cells. Mettl3 knockdown led to lower m6A modification and reduced Hmbox1 stability, resulting in further shortening of telomere length. SIGNIFICANCE our work uncovered that DEHP led to male reproductive injury by telomere dysfunction and m6A modified Hmbox1 contributed to maintaining telomere homeostasis in this process, suggesting that accurate regulation of m6A modification level by drugs has potential value in the treatment of DEHP-induced male reproductive injury.
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Affiliation(s)
- Xiaofang Zhu
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing 210009, China
| | - Haowei Fu
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing 210009, China
| | - Jiahui Sun
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing 210009, China
| | - Qiannan Di
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing 210009, China
| | - Qian Xu
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing 210009, China.
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N6-Methyladenosine Reader YTHDF2 Enhances Non-Small-Cell Lung Cancer Cell Proliferation and Metastasis through Mediating circ_SFMBT2 Degradation. CONTRAST MEDIA & MOLECULAR IMAGING 2022; 2022:1087622. [PMID: 35924072 PMCID: PMC9308553 DOI: 10.1155/2022/1087622] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Revised: 06/09/2022] [Accepted: 06/17/2022] [Indexed: 11/17/2022]
Abstract
Objective. circ_SFMBT2 was reported to facilitate malignant progression in various cancers, but its function in non-small-cell lung cancer (NSCLC) has not been fully uncovered. This study aimed to investigate the effects of N6-methyladenosine (m6A) methylation of circ_SFMBT2 (circ_0017628) on non-small-cell lung cancer (NSCLC) and its underlying mechanisms. Methods. Paired tumor and noncancerous tissues from NSCLC patients were surgically collected from January 2020 to March 2021 in our hospital. The levels of circ_SFMBT2 and LATS2 in NSCLC and human bronchial epithelial cells were assayed with qRT-PCR. Overexpression or silencing of circ_SFMBT2, LATS2, or YTHDF2 was performed in the NSCLC cells. CCK-8, colony-forming, and transwell assays were performed to analyze cell proliferation, viability, and migration, respectively. Meanwhile, the expression of MMP-9, E-cadherin, vimentin, and the Hippo/YAP pathway components was examined by western blotting. The m6A enrichment in circ_SFMBT2 was verified using methylated RNA immunoprecipitation, and interaction between circ_SFMBT2 and YTHDF2 was assessed by RNA pull-down and immunoprecipitation assays. Results. Both circ_SFMBT2 and LATS2 were lowly expressed in NSCLC cells and tissues. A positive correlation of circ_SFMBT2 with LATS2 was identified, and circ_SFMBT2 was localized predominantly in the cytoplasm. circ_SFMBT2 overexpression negatively regulated cell proliferation, viability, migration, and epithelial-mesenchymal transition while promoting the Hippo/YAP pathway activation. Notably, knockdown of LATS2 effectively abrogated the inhibitory effects of circ_SFMBT2 overexpression on NSCLC cell malignancies. Besides, m6A was specifically enriched in circ_SFMBT2, and circ_SFMBT2 could bind to YTHDF2. Silencing of YTHDF2 led to an increase in circ_SFMBT2 expression while inhibiting the malignancy of cancer cells. Conclusion. Our results showed that YTHDF2 could facilitate NSCLC cell proliferation and metastasis via the Hippo/YAP pathway activation by mediating circ_SFMBT2 degradation.
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Li J, Zhang X, Wang X, Sun C, Zheng J, Li J, Yi G, Yang N. The m6A methylation regulates gonadal sex differentiation in chicken embryo. J Anim Sci Biotechnol 2022; 13:52. [PMID: 35581635 PMCID: PMC9115958 DOI: 10.1186/s40104-022-00710-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Accepted: 03/16/2022] [Indexed: 01/06/2023] Open
Abstract
Background As a ubiquitous reversible epigenetic RNA modification, N6-methyladenosine (m6A) plays crucial regulatory roles in multiple biological pathways. However, its functional mechanisms in sex determination and differentiation during gonadal development of chicken embryos are not clear. Therefore, we established a transcriptome-wide m6A map in the female and male chicken left gonads of embryonic day 7 (E7) by methylated RNA immunoprecipitation sequencing (MeRIP-seq) to offer insight into the landscape of m6A methylation and investigate the post-transcriptional modification underlying gonadal differentiation. Results The chicken embryonic gonadal transcriptome was extensively methylated. We found 15,191 and 16,111 m6A peaks in the female and male left gonads, respectively, which were mainly enriched in the coding sequence (CDS) and stop codon. Among these m6A peaks, we identified that 1013 and 751 were hypermethylated in females and males, respectively. These differential peaks covered 281 and 327 genes, such as BMP2, SMAD2, SOX9 and CYP19A1, which were primarily associated with development, morphogenesis and sex differentiation by functional enrichment. Further analysis revealed that the m6A methylation level was positively correlated with gene expression abundance. Furthermore, we found that YTHDC2 could regulate the expression of sex-related genes, especially HEMGN and SOX9, in male mesonephros/gonad mingle cells, which was verified by in vitro experiments, suggesting a regulatory role of m6A methylation in chicken gonad differentiation. Conclusions This work provided a comprehensive m6A methylation profile of chicken embryonic gonads and revealed YTHDC2 as a key regulator responsible for sex differentiation. Our results contribute to a better understanding of epigenetic factors involved in chicken sex determination and differentiation and to promoting the future development of sex manipulation in poultry industry. Supplementary Information The online version contains supplementary material available at 10.1186/s40104-022-00710-6.
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Affiliation(s)
- Jianbo Li
- National Engineering Laboratory for Animal Breeding and Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture and Rural Affairs, China Agricultural University, Beijing, China
| | - Xiuan Zhang
- National Engineering Laboratory for Animal Breeding and Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture and Rural Affairs, China Agricultural University, Beijing, China
| | - Xiqiong Wang
- National Engineering Laboratory for Animal Breeding and Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture and Rural Affairs, China Agricultural University, Beijing, China
| | - Congjiao Sun
- National Engineering Laboratory for Animal Breeding and Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture and Rural Affairs, China Agricultural University, Beijing, China
| | - Jiangxia Zheng
- National Engineering Laboratory for Animal Breeding and Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture and Rural Affairs, China Agricultural University, Beijing, China
| | - Junying Li
- National Engineering Laboratory for Animal Breeding and Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture and Rural Affairs, China Agricultural University, Beijing, China
| | - Guoqiang Yi
- Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, China.
| | - Ning Yang
- National Engineering Laboratory for Animal Breeding and Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture and Rural Affairs, China Agricultural University, Beijing, China.
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Ding H, Li Z, Li X, Yang X, Zhao J, Guo J, Lu W, Liu H, Wang J. FTO Alleviates CdCl 2-Induced Apoptosis and Oxidative Stress via the AKT/Nrf2 Pathway in Bovine Granulosa Cells. Int J Mol Sci 2022; 23:ijms23094948. [PMID: 35563339 PMCID: PMC9101166 DOI: 10.3390/ijms23094948] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Revised: 04/25/2022] [Accepted: 04/27/2022] [Indexed: 12/15/2022] Open
Abstract
Cadmium (Cd) is a common environmental heavy metal contaminant of reproduction toxicity. Cd accumulation in animals leads to the damage of granulosa cells. However, its mechanism needs to be elucidated. This research found that treating granulosa cells with Cd resulted in reduced cell viability. The flow cytometry results showed that Cd increased the degree of apoptosis and level of superoxide anion (O2-) in granulosa cells. Further analysis showed that Cd treatment resulted in reduced expression levels of nuclear factor erythroid 2-related factor-2 (Nrf2), superoxide dismutase (SOD), catalase (CAT) and NAD(P)H: quinone oxidoreductase 1 (NQO1), and an increased expression level of malondialdehyde (MDA); the expression levels of Bcl-2 associated X (Bax) and caspase-3 increased, whereas that of B-cell lymphoma 2 (Bcl-2) decreased. Changes in m6A methylation-related enzymes were noted with Cd-induced damage to granulosa cells. The results of transcriptome and MeRIP sequencing revealed that the AKT pathway participated in Cd-induced damage in granulosa cells, and the MAX network transcriptional repressor (MNT) may be a potential target gene of fat mass and obesity-associated protein (FTO). FTO and YTH domain family member 2 (YTHDF2) regulated MNT expression through m6A modification. FTO overexpression alleviated Cd-induced apoptosis and oxidative stress through the activation of the AKT/Nrf2 pathway; this process could be reversed using siMNT. Overall, these findings associated m6A with Cd-induced damage to granulosa cells and provided insights into Cd-induced granulosa cell cytotoxicity from a new perspective centered on m6A modification.
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Affiliation(s)
- He Ding
- Joint Laboratory of Modern Agricultural Technology International Cooperation, Ministry of Education, Jilin Agricultural University, Changchun 130118, China; (H.D.); (Z.L.); (X.L.); (X.Y.); (J.Z.); (J.G.); (W.L.)
- Key Lab of Animal Production, Product Quality and Security, Ministry of Education, College of Animal Science and Technology, Jilin Agricultural University, Changchun 130118, China
| | - Zhiqiang Li
- Joint Laboratory of Modern Agricultural Technology International Cooperation, Ministry of Education, Jilin Agricultural University, Changchun 130118, China; (H.D.); (Z.L.); (X.L.); (X.Y.); (J.Z.); (J.G.); (W.L.)
- Key Lab of Animal Production, Product Quality and Security, Ministry of Education, College of Animal Science and Technology, Jilin Agricultural University, Changchun 130118, China
| | - Xin Li
- Joint Laboratory of Modern Agricultural Technology International Cooperation, Ministry of Education, Jilin Agricultural University, Changchun 130118, China; (H.D.); (Z.L.); (X.L.); (X.Y.); (J.Z.); (J.G.); (W.L.)
- Key Lab of Animal Production, Product Quality and Security, Ministry of Education, College of Animal Science and Technology, Jilin Agricultural University, Changchun 130118, China
| | - Xiaorui Yang
- Joint Laboratory of Modern Agricultural Technology International Cooperation, Ministry of Education, Jilin Agricultural University, Changchun 130118, China; (H.D.); (Z.L.); (X.L.); (X.Y.); (J.Z.); (J.G.); (W.L.)
- Key Lab of Animal Production, Product Quality and Security, Ministry of Education, College of Animal Science and Technology, Jilin Agricultural University, Changchun 130118, China
| | - Jing Zhao
- Joint Laboratory of Modern Agricultural Technology International Cooperation, Ministry of Education, Jilin Agricultural University, Changchun 130118, China; (H.D.); (Z.L.); (X.L.); (X.Y.); (J.Z.); (J.G.); (W.L.)
- Key Lab of Animal Production, Product Quality and Security, Ministry of Education, College of Animal Science and Technology, Jilin Agricultural University, Changchun 130118, China
| | - Jing Guo
- Joint Laboratory of Modern Agricultural Technology International Cooperation, Ministry of Education, Jilin Agricultural University, Changchun 130118, China; (H.D.); (Z.L.); (X.L.); (X.Y.); (J.Z.); (J.G.); (W.L.)
- Key Lab of Animal Production, Product Quality and Security, Ministry of Education, College of Animal Science and Technology, Jilin Agricultural University, Changchun 130118, China
| | - Wenfa Lu
- Joint Laboratory of Modern Agricultural Technology International Cooperation, Ministry of Education, Jilin Agricultural University, Changchun 130118, China; (H.D.); (Z.L.); (X.L.); (X.Y.); (J.Z.); (J.G.); (W.L.)
- Key Lab of Animal Production, Product Quality and Security, Ministry of Education, College of Animal Science and Technology, Jilin Agricultural University, Changchun 130118, China
| | - Hongyu Liu
- Joint Laboratory of Modern Agricultural Technology International Cooperation, Ministry of Education, Jilin Agricultural University, Changchun 130118, China; (H.D.); (Z.L.); (X.L.); (X.Y.); (J.Z.); (J.G.); (W.L.)
- Key Lab of Animal Production, Product Quality and Security, Ministry of Education, College of Animal Science and Technology, Jilin Agricultural University, Changchun 130118, China
- Correspondence: (H.L.); (J.W.)
| | - Jun Wang
- Joint Laboratory of Modern Agricultural Technology International Cooperation, Ministry of Education, Jilin Agricultural University, Changchun 130118, China; (H.D.); (Z.L.); (X.L.); (X.Y.); (J.Z.); (J.G.); (W.L.)
- Key Lab of Animal Production, Product Quality and Security, Ministry of Education, College of Animal Science and Technology, Jilin Agricultural University, Changchun 130118, China
- Correspondence: (H.L.); (J.W.)
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Li Y, Meng L, Zhao B. The roles of N6-methyladenosine methylation in the regulation of bone development, bone remodeling and osteoporosis. Pharmacol Ther 2022; 238:108174. [PMID: 35346729 DOI: 10.1016/j.pharmthera.2022.108174] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 02/23/2022] [Accepted: 03/22/2022] [Indexed: 01/12/2023]
Abstract
N6-methyladenosine (m6A), a novel epitranscriptomic RNA modification, plays crucial roles in a variety of biological processes and diseases. Recently, there are growing evidence supporting that m6A methylation is essential for bone development and homeostasis through the regulation of key genes by regulating RNA stability, localization, turnover and translation efficiency. In this review, we summarized our current understanding of the functional roles of m6A methylation and its related regulators in bone development and bone remodeling. These findings will offer new directions and insights on the further investigations of m6A methylation in bone biology. Moreover, we also discussed important advances of m6A methylation related regulators as potential therapeutic targets, which allows for novel therapeutic strategies on the medications of bone-related diseases including osteoporosis.
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Affiliation(s)
- Yuan Li
- Department of Pharmacology, School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China; Suzhou Research Institute, Shandong University, Suzhou, Jiangsu 215123, China
| | - Li Meng
- Department of Pharmacology, School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China
| | - Baobing Zhao
- Department of Pharmacology, School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China; Key Laboratory of Chemical Biology, Ministry of Education, Shandong University, Jinan 250012, China.
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Ma Y, Liu X, Bi Y, Wang T, Chen C, Wang Y, Han D, Cao F. Alteration of N6-Methyladenosine mRNA Methylation in a Human Stem Cell-Derived Cardiomyocyte Model of Tyrosine Kinase Inhibitor-Induced Cardiotoxicity. Front Cardiovasc Med 2022; 9:849175. [PMID: 35402566 PMCID: PMC8985653 DOI: 10.3389/fcvm.2022.849175] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Accepted: 02/23/2022] [Indexed: 01/18/2023] Open
Abstract
Background N6-methyladenosine (m6A) plays important roles in various cardiovascular diseases (CVDs), including cardiac hypertrophy and heart failure. Sunitinib (SUN) is a tyrosine kinase inhibitor (TKI) that is widely used in the treatment of different types of solid and blood tumors, but its efficacy is restricted by a concomitant rise in cardiotoxicities. However, the methylation modification of m6A messenger RNA (mRNA) in cardiomyocytes treated with TKI has not been investigated. Methods The global m6A methylation level of SUN-induced cardiotoxicity was detected by m6A dot blot and colorimetric methylation assay. MeRIP-Seq (methylated RNA immunoprecipitation sequencing) and RNA-seq (RNA sequencing, input) were employed to depict the landscapes of transcriptome and epitranscriptome in TKI. Changes in major m6A-related enzymes were detected by qRT-PCR and Western blot. In addition, the effects of FTO on SUN-induced cardiotoxicity were evaluated by gain and loss of function studies. Results In this study, we observed that the m6A methylation level was significantly elevated in SUN-treated human-induced pluripotent stem cell-derived cardiomyocytes (hiPSC-CMs) and paralleled a positively correlated cellular damage level. Through a genome-wide analysis of m6A mRNA methylation by methylated RNA immunoprecipitation sequencing (MeRIP-seq) and input RNA sequencing (RNA-seq), we identified a total of 2,614 peaks with significant changes, of which 1,695 peaks were significantly upregulated and 919 peaks were significantly downregulated. Quantitative reverse transcription PCR (RT-qPCR), immunofluorescence, and Western blotting revealed that the RNA demethylase fat mass and obesity-associated protein (FTO) was downregulated, whereas the RNA methylases methyltransferase-like 14 (METTL14) and wilms' tumor 1-associating protein (WTAP) were upregulated. Furthermore, gain- and loss-of-function studies substantiated that FTO is cardioprotective in TKI. Conclusion This study deciphered the methylation modification of m6A mRNA in hiPSC-CMs post-TKI treatment and determined that FTO may be a promising therapeutic target for TKI-induced cardiotoxicity.
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Affiliation(s)
- Yan Ma
- National Clinical Research Center for Geriatric Diseases, The Second Medical Center, Chinese People's Liberation Army (PLA) General Hospital, Beijing, China
| | - Xian Liu
- Department of Pharmaceutical Sciences, Beijing Institute of Radiation Medicine, Beijing, China
| | - Yiming Bi
- National Clinical Research Center for Geriatric Diseases, The Second Medical Center, Chinese People's Liberation Army (PLA) General Hospital, Beijing, China
| | - Tianhu Wang
- National Clinical Research Center for Geriatric Diseases, The Second Medical Center, Chinese People's Liberation Army (PLA) General Hospital, Beijing, China
| | - Cheng Chen
- National Clinical Research Center for Geriatric Diseases, The Second Medical Center, Chinese People's Liberation Army (PLA) General Hospital, Beijing, China
| | - Yabin Wang
- National Clinical Research Center for Geriatric Diseases, The Second Medical Center, Chinese People's Liberation Army (PLA) General Hospital, Beijing, China
| | - Dong Han
- National Clinical Research Center for Geriatric Diseases, The Second Medical Center, Chinese People's Liberation Army (PLA) General Hospital, Beijing, China
- *Correspondence: Dong Han
| | - Feng Cao
- National Clinical Research Center for Geriatric Diseases, The Second Medical Center, Chinese People's Liberation Army (PLA) General Hospital, Beijing, China
- Feng Cao
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Tang J, Su Q, Guo Z, Zhou J, Zheng F, Yu G, Shao W, Hu H, Wu S, Li H. N6-methyladenosine(m 6A) demethylase FTO regulates cellular apoptosis following cobalt-induced oxidative stress. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 297:118749. [PMID: 34968619 DOI: 10.1016/j.envpol.2021.118749] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Revised: 12/22/2021] [Accepted: 12/22/2021] [Indexed: 06/14/2023]
Abstract
Cobalt is an environmental toxicant that is known to damage human health. However, the molecular mechanisms underlying cobalt-induced neurotoxicity have not been elucidated in detail. In the present research, we used human neuroglioma H4 cells as an in vitro model. Cells were exposed to CoCl2 (0, 100, 200, 400 μM) for 24 h. We performed m6A sequencing techniques and constructed FTO-knockdown/FTO-overexpressing cells to investigate the role of FTO-mediated m6A modification in regulating apoptosis following CoCl2 induced oxidative stress. Our study has shown CoCl2 exposure led to the decrease of demethylase FTO as well as elevated oxidative stress. However, NAC treatment could partly reverse the reduction of FTO expression as well as the degree of ROS via eliminating oxidative stress. Meanwhile, MeRIP-seq and RNA-seq further revealed the potential function m6A modification in regulating apoptosis. More importantly, KEGG pathway and Gene ontology (GO) analyses further elucidated that the differentially m6A-modified genes were aggregated in apoptosis-related pathways. Mechanistic analysis indicated that knockdown of FTO facilitated CoCl2-induced apoptosis via caspase activation and G1/S cell cycle arrest. Nevertheless, overexpression of FTO partly attenuated the increased apoptosis following CoCl2 exposure. More notably, we observed that FTO regulated apoptosis in an m6A-dependent manner. Therefore, our findings reveal that CoCl2 induced ROS affected the m6A modification of apoptosis-related genes by decreasing the expression of FTO, thereby resulting in the activation of apoptosis. These findings provide important insights into CoCl2-induced apoptosis and m6A modification and propose a novel strategy for studying environmental toxicant-related neurodegeneration.
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Affiliation(s)
- Jianping Tang
- Fujian Provincial Key Laboratory of Environmental Factors and Cancer, School of Public Health, Fujian Medical University, Fuzhou, 350122, China; Department of Preventive Medicine, School of Public Health, Fujian Medical University, Fuzhou, 350122, China
| | - Qianqian Su
- Fujian Provincial Key Laboratory of Environmental Factors and Cancer, School of Public Health, Fujian Medical University, Fuzhou, 350122, China; Department of Preventive Medicine, School of Public Health, Fujian Medical University, Fuzhou, 350122, China
| | - Zhenkun Guo
- Fujian Provincial Key Laboratory of Environmental Factors and Cancer, School of Public Health, Fujian Medical University, Fuzhou, 350122, China; The Key Laboratory of Environment and Health, School of Public Health, Fujian Medical University, Fuzhou, 350122, China
| | - Jinfu Zhou
- Fujian Provincial Key Laboratory of Environmental Factors and Cancer, School of Public Health, Fujian Medical University, Fuzhou, 350122, China; Department of Preventive Medicine, School of Public Health, Fujian Medical University, Fuzhou, 350122, China
| | - Fuli Zheng
- Fujian Provincial Key Laboratory of Environmental Factors and Cancer, School of Public Health, Fujian Medical University, Fuzhou, 350122, China; Department of Preventive Medicine, School of Public Health, Fujian Medical University, Fuzhou, 350122, China; The Key Laboratory of Environment and Health, School of Public Health, Fujian Medical University, Fuzhou, 350122, China
| | - Guangxia Yu
- Fujian Provincial Key Laboratory of Environmental Factors and Cancer, School of Public Health, Fujian Medical University, Fuzhou, 350122, China; Department of Preventive Medicine, School of Public Health, Fujian Medical University, Fuzhou, 350122, China; The Key Laboratory of Environment and Health, School of Public Health, Fujian Medical University, Fuzhou, 350122, China
| | - Wenya Shao
- Fujian Provincial Key Laboratory of Environmental Factors and Cancer, School of Public Health, Fujian Medical University, Fuzhou, 350122, China; Department of Preventive Medicine, School of Public Health, Fujian Medical University, Fuzhou, 350122, China; The Key Laboratory of Environment and Health, School of Public Health, Fujian Medical University, Fuzhou, 350122, China
| | - Hong Hu
- Fujian Provincial Key Laboratory of Environmental Factors and Cancer, School of Public Health, Fujian Medical University, Fuzhou, 350122, China; Department of Preventive Medicine, School of Public Health, Fujian Medical University, Fuzhou, 350122, China; The Key Laboratory of Environment and Health, School of Public Health, Fujian Medical University, Fuzhou, 350122, China
| | - Siying Wu
- Fujian Provincial Key Laboratory of Environmental Factors and Cancer, School of Public Health, Fujian Medical University, Fuzhou, 350122, China; The Key Laboratory of Environment and Health, School of Public Health, Fujian Medical University, Fuzhou, 350122, China; Department of Epidemiology and Health Statistics, School of Public Health, Fujian Medical University, Fuzhou, 350122, China
| | - Huangyuan Li
- Fujian Provincial Key Laboratory of Environmental Factors and Cancer, School of Public Health, Fujian Medical University, Fuzhou, 350122, China; Department of Preventive Medicine, School of Public Health, Fujian Medical University, Fuzhou, 350122, China; The Key Laboratory of Environment and Health, School of Public Health, Fujian Medical University, Fuzhou, 350122, China.
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Zhao T, Tang X, Li D, Zhao J, Zhou R, Shu F, Jia W, Fu W, Xia H, Liu G. Prenatal exposure to environmentally relevant levels of PBDE-99 leads to testicular dysgenesis with steroidogenesis disorders. JOURNAL OF HAZARDOUS MATERIALS 2022; 424:127547. [PMID: 34879533 DOI: 10.1016/j.jhazmat.2021.127547] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Revised: 09/29/2021] [Accepted: 10/15/2021] [Indexed: 06/13/2023]
Abstract
Polybrominated diphenyl ethers (PBDEs) are a widely used class of brominated flame retardants. Exposure to PBDEs could induce testicular damage in mammals, but the effects and potential mechanism of action of prenatal exposure to environmentally relevant PBDEs on testicular development remain unclear. For the in vivo study, pregnant ICR mice were exposed to environmentally relevant levels of 2,2',4,4',5-pentabromodiphenyl ether (PBDE-99), a major component of commercial PBDE mixtures. We found that the anogenital index and testicular organ coefficient were significantly decreased, the incidence of cryptorchidism was increased, and testicular histology was disturbed in male offspring. Transcriptomic profiling showed that steroidogenesis disorders were significant in all PBDE-99 exposure groups. The testosterone levels, expressions of testosterone regulators, and the number of CYP11A1-positive and 11β-HSD1-positive Leydig cells were significantly decreased after PBDE-99 exposure. For the in vitro study, TM3 Leydig cells were exposed to PBDE-99 at gradient concentrations. Transcriptomic profiling and validation experiments showed that PBDE-99 upregulated reactive oxygen species, activated the ERK1/2 pathway, inhibited the ubiquitination degradation pathway, and finally induced Leydig cell apoptosis. Cumulatively, these findings revealed that prenatal exposure to environmentally relevant levels of PBDE-99 leads to steroidogenesis disorders by inducing the apoptosis of Leydig cells, causing testicular dysgenesis.
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Affiliation(s)
- Tianxin Zhao
- Department of Pediatric Urology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, Guangdong, China; Department of Pediatric Surgery, Guangzhou Institute of Pediatrics, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, Guangdong, China; Guangdong Provincial Key Laboratory of Research in Structural Birth Defect Disease, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Xiangliang Tang
- Department of Pediatric Urology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, Guangdong, China; Department of Pediatric Surgery, Guangzhou Institute of Pediatrics, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Dian Li
- Department of Pediatric Urology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, Guangdong, China; Department of Pediatric Surgery, Guangzhou Institute of Pediatrics, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Jinglu Zhao
- Department of Pediatric Surgery, Guangzhou Institute of Pediatrics, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, Guangdong, China; Guangdong Provincial Key Laboratory of Research in Structural Birth Defect Disease, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Rui Zhou
- Department of Pediatric Urology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, Guangdong, China; Department of Pediatric Surgery, Guangzhou Institute of Pediatrics, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Fangpeng Shu
- Department of Pediatric Urology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, Guangdong, China; Department of Pediatric Surgery, Guangzhou Institute of Pediatrics, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Wei Jia
- Department of Pediatric Urology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, Guangdong, China; Department of Pediatric Surgery, Guangzhou Institute of Pediatrics, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Wen Fu
- Department of Pediatric Urology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, Guangdong, China; Department of Pediatric Surgery, Guangzhou Institute of Pediatrics, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Huimin Xia
- Department of Pediatric Surgery, Guangzhou Institute of Pediatrics, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, Guangdong, China; Guangdong Provincial Key Laboratory of Research in Structural Birth Defect Disease, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Guochang Liu
- Department of Pediatric Urology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, Guangdong, China; Department of Pediatric Surgery, Guangzhou Institute of Pediatrics, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, Guangdong, China; Guangdong Provincial Key Laboratory of Research in Structural Birth Defect Disease, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, Guangdong, China.
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Kang L, Chen J, Wang J, Zhao T, Wei Y, Wu Y, Han L, Zheng X, Shen L, Long C, Wei G, Wu S. Multiple transcriptomic profiling: potential novel metabolism-related genes predict prepubertal testis damage caused by DEHP exposure. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:13478-13490. [PMID: 34595713 DOI: 10.1007/s11356-021-16701-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Accepted: 09/20/2021] [Indexed: 06/13/2023]
Abstract
The toxic effect of di(2-ethylhexyl) phthalate (DEHP) on prepubertal testes was examined in this study. We treated 3-week-old male mice with 4.8 mg/kg/day (milligram/kilogram/day) (no observed adverse effect level), 30 mg/kg/day (high exposure dose relative to humans), 100 mg/kg/day (level causing a reproductive system disorder), and 500 mg/kg/day (dose causing a multigenerational reproductive system disorder) of DEHP via gavage. Obvious abnormalities in the testicular organ coefficient, spermatogenic epithelium, and testosterone levels occurred in the 500 mg/kg DEHP group. Ribonucleic acid sequencing (RNA-seq) showed that differentially expressed genes (DEGs) in each group could enrich reproduction and reproductive process terms according to the gene ontology (GO) results, and coenrichment of metabolism pathway was observed by the Reactome pathway analysis. Through the analysis of common genes in the metabolism pathway, we discovered that DEHP exposure at 4.8 to 500 mg/kg or 100 mg/kg caused the same damages to the prepubertal testis. In general, we identified two key transcriptional biomarkers (fatty acid binding protein 3 (Fabp3) and carboxylesterase (Ces) 1d), which provided new insight into the gene regulatory mechanism associated with DEHP exposure and will contribute to the prediction and diagnosis of prepuberty testis injury caused by DEHP.
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Affiliation(s)
- Lian Kang
- Department of Urology, Children's Hospital of Chongqing Medical University, Chongqing, People's Republic of China
- Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, People's Republic of China
- National Clinical Research Center for Child Health and Disorders, Chongqing, People's Republic of China
- Chongqing Key Laboratory of Pediatrics Chongqing, Room 806, Kejiao Building (NO.6), No.136, Zhongshan 2nd Road, Yuzhong District, Chongqing, People's Republic of China
- Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Chongqing, People's Republic of China
| | - Jiadong Chen
- Department of Urology, Children's Hospital of Chongqing Medical University, Chongqing, People's Republic of China
- Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, People's Republic of China
- National Clinical Research Center for Child Health and Disorders, Chongqing, People's Republic of China
- China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing, People's Republic of China
- Chongqing Key Laboratory of Pediatrics Chongqing, Room 806, Kejiao Building (NO.6), No.136, Zhongshan 2nd Road, Yuzhong District, Chongqing, People's Republic of China
- Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Chongqing, People's Republic of China
| | - Junke Wang
- Department of Urology, Children's Hospital of Chongqing Medical University, Chongqing, People's Republic of China
- Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, People's Republic of China
- National Clinical Research Center for Child Health and Disorders, Chongqing, People's Republic of China
- China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing, People's Republic of China
- Chongqing Key Laboratory of Pediatrics Chongqing, Room 806, Kejiao Building (NO.6), No.136, Zhongshan 2nd Road, Yuzhong District, Chongqing, People's Republic of China
- Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Chongqing, People's Republic of China
| | - Tianxin Zhao
- Department of Pediatric Urology, Guangzhou Woman and Children's Medical Center, Guangzhou Medical University, Guangzhou, Guangdong, People's Republic of China
- Department of Pediatric Surgery, Guangzhou Institute of Pediatrics, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, Guangdong, People's Republic of China
| | - Yuexin Wei
- Department of Urology, Children's Hospital of Chongqing Medical University, Chongqing, People's Republic of China
- Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, People's Republic of China
- National Clinical Research Center for Child Health and Disorders, Chongqing, People's Republic of China
- China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing, People's Republic of China
- Chongqing Key Laboratory of Pediatrics Chongqing, Room 806, Kejiao Building (NO.6), No.136, Zhongshan 2nd Road, Yuzhong District, Chongqing, People's Republic of China
- Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Chongqing, People's Republic of China
| | - Yuhao Wu
- Department of Urology, Children's Hospital of Chongqing Medical University, Chongqing, People's Republic of China
- Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, People's Republic of China
- National Clinical Research Center for Child Health and Disorders, Chongqing, People's Republic of China
- China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing, People's Republic of China
- Chongqing Key Laboratory of Pediatrics Chongqing, Room 806, Kejiao Building (NO.6), No.136, Zhongshan 2nd Road, Yuzhong District, Chongqing, People's Republic of China
- Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Chongqing, People's Republic of China
| | - Lindong Han
- Department of Urology, Children's Hospital of Chongqing Medical University, Chongqing, People's Republic of China
- Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, People's Republic of China
- National Clinical Research Center for Child Health and Disorders, Chongqing, People's Republic of China
- China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing, People's Republic of China
- Chongqing Key Laboratory of Pediatrics Chongqing, Room 806, Kejiao Building (NO.6), No.136, Zhongshan 2nd Road, Yuzhong District, Chongqing, People's Republic of China
- Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Chongqing, People's Republic of China
| | - Xiangqin Zheng
- Department of Urology, Children's Hospital of Chongqing Medical University, Chongqing, People's Republic of China
- Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, People's Republic of China
- National Clinical Research Center for Child Health and Disorders, Chongqing, People's Republic of China
- China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing, People's Republic of China
- Chongqing Key Laboratory of Pediatrics Chongqing, Room 806, Kejiao Building (NO.6), No.136, Zhongshan 2nd Road, Yuzhong District, Chongqing, People's Republic of China
- Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Chongqing, People's Republic of China
| | - Lianju Shen
- Department of Urology, Children's Hospital of Chongqing Medical University, Chongqing, People's Republic of China
- Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, People's Republic of China
- National Clinical Research Center for Child Health and Disorders, Chongqing, People's Republic of China
- China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing, People's Republic of China
- Chongqing Key Laboratory of Pediatrics Chongqing, Room 806, Kejiao Building (NO.6), No.136, Zhongshan 2nd Road, Yuzhong District, Chongqing, People's Republic of China
- Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Chongqing, People's Republic of China
| | - Chunlan Long
- Department of Urology, Children's Hospital of Chongqing Medical University, Chongqing, People's Republic of China
- Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, People's Republic of China
- National Clinical Research Center for Child Health and Disorders, Chongqing, People's Republic of China
- China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing, People's Republic of China
- Chongqing Key Laboratory of Pediatrics Chongqing, Room 806, Kejiao Building (NO.6), No.136, Zhongshan 2nd Road, Yuzhong District, Chongqing, People's Republic of China
- Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Chongqing, People's Republic of China
| | - Guanghui Wei
- Department of Urology, Children's Hospital of Chongqing Medical University, Chongqing, People's Republic of China
- Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, People's Republic of China
- National Clinical Research Center for Child Health and Disorders, Chongqing, People's Republic of China
- China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing, People's Republic of China
- Chongqing Key Laboratory of Pediatrics Chongqing, Room 806, Kejiao Building (NO.6), No.136, Zhongshan 2nd Road, Yuzhong District, Chongqing, People's Republic of China
- Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Chongqing, People's Republic of China
| | - Shengde Wu
- Department of Urology, Children's Hospital of Chongqing Medical University, Chongqing, People's Republic of China.
- Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, People's Republic of China.
- National Clinical Research Center for Child Health and Disorders, Chongqing, People's Republic of China.
- China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing, People's Republic of China.
- Chongqing Key Laboratory of Pediatrics Chongqing, Room 806, Kejiao Building (NO.6), No.136, Zhongshan 2nd Road, Yuzhong District, Chongqing, People's Republic of China.
- Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Chongqing, People's Republic of China.
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Wang X, Pei J, Guo S, Cao M, Bao P, Xiong L, Wu X, Chu M, Liang C, Yan P, Guo X. Characterization of N 6-Methyladenosine in Domesticated Yak Testes Before and After Sexual Maturity. Front Cell Dev Biol 2021; 9:755670. [PMID: 34858983 PMCID: PMC8632223 DOI: 10.3389/fcell.2021.755670] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Accepted: 10/27/2021] [Indexed: 11/26/2022] Open
Abstract
The potential regulatory role of N6-methyladenosine (m6A), the most prominent mRNA modification in eukaryotes, has recently been identified in mammals, plants, and yeast. However, whether and how m6A methylation is involved in sexual maturation in mammals remains largely unexplored. In this study, testicular tissue was obtained from yaks before and after sexual maturation, and m6A maps were generated via preliminary experiments and methylated RNA immunoprecipitation sequencing. Only spermatogonial cells and a few primary spermatocytes were observed in the testicular tissue of yaks before sexual maturation, while spermatogenic cells at different stages of maturity could observed after sexual maturation. Experiments examining the expression of methylation-related enzymes and overall methylation levels showed that the methylation levels in yak testes increased after sexual maturation. Overall, 1,438 methylation peaks were differentially expressed before and after sexual maturation; 1,226 showed significant up-regulation and 212 showed significant down-regulation after sexual maturation. Annotation analysis showed that the differential methylation peaks were most commonly concentrated in the exon region, followed by the 3′UTR and finally the 5′UTR region. KEGG pathway analysis demonstrated that homologous recombination, the Notch signaling pathway, growth hormone synthesis, and other signaling pathways may be involved in testicular development and maturation in yaks. Levels of most m6A modifications were positively correlated with mRNA abundance, suggesting that m6A plays a regulatory role in mammalian sexual maturation. To our knowledge, this is the first report of an m6A transcriptional map of the yak testes, and our study lays the foundation for elucidating the function of m6A in the development of yak testes.
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Affiliation(s)
- Xingdong Wang
- Key Laboratory of Yak Breeding Engineering of Gansu Province, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou, China
| | - Jie Pei
- Key Laboratory of Yak Breeding Engineering of Gansu Province, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou, China
| | - Shaoke Guo
- Key Laboratory of Yak Breeding Engineering of Gansu Province, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou, China
| | - Mengli Cao
- Key Laboratory of Yak Breeding Engineering of Gansu Province, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou, China
| | - Pengjia Bao
- Key Laboratory of Yak Breeding Engineering of Gansu Province, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou, China
| | - Lin Xiong
- Key Laboratory of Yak Breeding Engineering of Gansu Province, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou, China
| | - Xiaoyun Wu
- Key Laboratory of Yak Breeding Engineering of Gansu Province, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou, China
| | - Min Chu
- Key Laboratory of Yak Breeding Engineering of Gansu Province, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou, China
| | - Chunnian Liang
- Key Laboratory of Yak Breeding Engineering of Gansu Province, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou, China
| | - Ping Yan
- Key Laboratory of Yak Breeding Engineering of Gansu Province, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou, China
| | - Xian Guo
- Key Laboratory of Yak Breeding Engineering of Gansu Province, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou, China
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Zhang K, Han Z, Zhao H, Liu S, Zeng F. An integrated model of FTO and METTL3 expression that predicts prognosis in lung squamous cell carcinoma patients. ANNALS OF TRANSLATIONAL MEDICINE 2021; 9:1523. [PMID: 34790729 PMCID: PMC8576700 DOI: 10.21037/atm-21-4470] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Accepted: 10/02/2021] [Indexed: 12/13/2022]
Abstract
Background Lung squamous cell carcinoma (LUSC) approximately accounts for a third of lung cancers. However, the role of N6-methyladenosine (m6A) in LUSC remains largely unknown according to previous studies. Methods In this study, we investigated the mutations, copy number variants (CNVs), expression of 20 m6A RNA methylation regulators, and clinical data from The Cancer Genome Atlas-LUSC (TCGA-LUSC). These data were used for the training cohort of screening potential biomarkers. The prognostic model of m6A RNA methylation regulators was constructed. A receiver operating characteristic (ROC) analysis was undertaken to determine the area under the curves (AUCs) (for 3- and 5-year survival) for the model. Additionally, the accuracy of the two-gene model was confirmed with external data verifications. Combined two-gene model and clinincal information were performed to construct a nomogram to predict patient’s prognostic risk assessment. Results Fat mass- and obesity-associated protein (FTO) and methyltransferase-like 3 (METTL3) were identified as potential prognostic biomarkers to evaluate benign and malignant tumors and prognosticate. The following prognostic model of m6A RNA methylation regulators was constructed: risk score = 0.162 × FTO − 0.069 × METTL3. Patients in low-risk group [median overall survival (mOS), 43.4 months] had longer survival than those with high-risk (mOS, 67.3 months) with P=0.0023. The smoking grade and risk score could be independent prognostic factors (P=0.00098 and P=0.0014, respectively). Ultimately, a nomogram was developed to assist clinicians to predict clinical outcomes. Conclusions FTO and METTL3 are potential prognostic biomarkers of LUSC. The two-gene model’s use of prognostic risk scores may provide guidance in the selection of therapeutic strategies.
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Affiliation(s)
- Kun Zhang
- Department of Thoracic Surgery, Sichuan Provincial People's Hospital, Chengdu, China
| | - Zhaojie Han
- Department of Thoracic Surgery, Southwest Hospital, Army Medical University, Chongqing, China
| | - Hongmei Zhao
- Chosen Med Technology (Beijing) Co., Ltd., Beijing, China
| | - Siyao Liu
- Chosen Med Technology (Beijing) Co., Ltd., Beijing, China
| | - Fuchun Zeng
- Department of Thoracic Surgery, Sichuan Provincial People's Hospital, Chengdu, China
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Zhang J, Yang Q, Yang J, Gao X, Luo R, Huang X, Yan Z, Wang P, Wang W, Xie K, Zhang B, Gun S. Comprehensive Analysis of Transcriptome-wide m 6A Methylome Upon Clostridium perfringens Beta2 Toxin Exposure in Porcine Intestinal Epithelial Cells by m 6A Sequencing. Front Genet 2021; 12:689748. [PMID: 34737761 PMCID: PMC8560698 DOI: 10.3389/fgene.2021.689748] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Accepted: 09/30/2021] [Indexed: 12/13/2022] Open
Abstract
Piglet diarrhea is a swine disease responsible for serious economic impacts in the pig industry. Clostridium perfringens beta2 toxin (CPB2), which is a major toxin of C. perfringens type C, may cause intestinal diseases in many domestic animals. N6-methyladenosine (m6A) RNA methylation plays critical roles in many immune and inflammatory diseases in livestock and other animals. However, the role of m6A methylation in porcine intestinal epithelial (IPEC-J2) cells exposed to CPB2 has not been studied. To address this issue, we treated IPEC-J2 cells with CPB2 toxin and then quantified methylation-related enzyme expression by RT-qPCR and assessed the m6A methylation status of the samples by colorimetric N6-methyladenosine quantification. The results showed that the methylation enzymes changed to varying degrees while the m6A methylation level increased (p < 0.01). On this basis, we performed N6-methyladenosine sequencing (m6A-seq) and RNA sequencing (RNA-seq) to examine the detailed m6A modifications and gene expression of the IPEC-J2 cells following CPB2 toxin exposure. Our results indicated that 1,448 m6A modification sites, including 437 up-regulated and 1,011 down-regulated, differed significantly between CPB2 toxin exposed cells and non-exposed cells (p < 0.05). KEGG pathway analysis results showed that m6A peaks up-regulated genes (n = 394) were mainly enriched in cancer, Cushing syndrome and Wnt signaling pathways, while m6A peaks down-regulated genes (n = 920) were mainly associated with apoptosis, small cell lung cancer, and the herpes simplex virus 1 infection signaling pathway. Furthermore, gene expression (RNA-seq data) analysis identified 1,636 differentially expressed genes (DEGs), of which 1,094 were up-regulated and 542 were down-regulated in the toxin exposed group compared with the control group. In addition, the down-regulated genes were involved in the Hippo and Wnt signaling pathways. Interestingly, the combined results of m6A-seq and RNA-seq identified genes with up-regulated m6A peaks but with down-regulated expression, here referred to as "hyper-down" genes (n = 18), which were mainly enriched in the Wnt signaling pathway. Therefore, we speculate that the genes in the Wnt signaling pathway may be modified by m6A methylation in CPB2-induced IPEC-J2 cells. These findings provide new insights enabling further exploration of the mechanisms underlying piglet diarrhea caused by CPB2 toxin.
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Affiliation(s)
- Juanli Zhang
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, China
| | - Qiaoli Yang
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, China
| | - Jiaojiao Yang
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, China
| | - Xiaoli Gao
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, China
| | - Ruirui Luo
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, China
| | - Xiaoyu Huang
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, China
| | - Zunqiang Yan
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, China
| | - Pengfei Wang
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, China
| | - Wei Wang
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, China
| | - Kaihui Xie
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, China
| | - Bo Zhang
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, China
| | - Shuangbao Gun
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, China
- Gansu Research Center for Swine Production Engineering and Technology, Lanzhou, China
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37
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Yuan Q, Zhu H, Liu H, Wang M, Chu H, Zhang Z. METTL3 regulates PM 2.5-induced cell injury by targeting OSGIN1 in human airway epithelial cells. JOURNAL OF HAZARDOUS MATERIALS 2021; 415:125573. [PMID: 33730643 DOI: 10.1016/j.jhazmat.2021.125573] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Revised: 01/30/2021] [Accepted: 03/01/2021] [Indexed: 06/12/2023]
Abstract
N6-methyladenosine (m6A) is implicated in alteration of cellular biological processes caused by exogenous environmental factors. However, little is known about the role of m6A in airborne fine particulate matter (PM2.5)-induced adverse effects. Thus, we investigated the role of m6A modification in PM2.5-induced airway epithelial cell injury. We observed a methyltransferase-like 3 (METTL3)-dependent induction of m6A modification after PM2.5 treatment in HBE and A549 cells. METTL3 knockdown attenuated PM2.5-induced apoptosis and arrest of cell cycle. mRNA sequencing and RNA N6-methyladenosine binding protein immunoprecipitation (Me-RIP) assay identified m6A-modified oxidative stress induced growth inhibitor 1 (OSGIN1) as the target gene of METTL3. Knockdown of METTL3 resulted a shorter mRNA half-life of OSGIN1 by catalyzing its m6A modification. Knockdown of METTL3 or OSGIN1 attenuated cell apoptosis, arrest of cell cycle and autophagy induced by PM2.5. In conclusion, METTL3 may mediate PM2.5-induced cell injury by targeting OSGIN1 in human airway epithelial cells. Our work uncovered a critical role of METTL3 in PM2.5-induced airway epithelial cell injury and provided insight into the vital role of m6A modification in PM2.5-induced human hazards.
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Affiliation(s)
- Qi Yuan
- Department of Environmental Genomics, Jiangsu Key Laboratory of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Personalized Medicine, School of Public Health, Nanjing Medical University, Nanjing, China; Department of Genetic Toxicology, The Key Laboratory of Modern Toxicology of Ministry of Education, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China; Nanjing Municipal Center for Disease Control and Prevention, Nanjing, China
| | - Huanhuan Zhu
- Department of Environmental Genomics, Jiangsu Key Laboratory of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Personalized Medicine, School of Public Health, Nanjing Medical University, Nanjing, China; Department of Genetic Toxicology, The Key Laboratory of Modern Toxicology of Ministry of Education, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Hanting Liu
- Department of Environmental Genomics, Jiangsu Key Laboratory of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Personalized Medicine, School of Public Health, Nanjing Medical University, Nanjing, China; Department of Genetic Toxicology, The Key Laboratory of Modern Toxicology of Ministry of Education, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Meilin Wang
- Department of Environmental Genomics, Jiangsu Key Laboratory of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Personalized Medicine, School of Public Health, Nanjing Medical University, Nanjing, China; Department of Genetic Toxicology, The Key Laboratory of Modern Toxicology of Ministry of Education, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Haiyan Chu
- Department of Environmental Genomics, Jiangsu Key Laboratory of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Personalized Medicine, School of Public Health, Nanjing Medical University, Nanjing, China; Department of Genetic Toxicology, The Key Laboratory of Modern Toxicology of Ministry of Education, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China.
| | - Zhengdong Zhang
- Department of Environmental Genomics, Jiangsu Key Laboratory of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Personalized Medicine, School of Public Health, Nanjing Medical University, Nanjing, China; Department of Genetic Toxicology, The Key Laboratory of Modern Toxicology of Ministry of Education, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China.
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38
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He T, Guo H, Shen X, Wu X, Xia L, Jiang X, Xu Y, Chen D, Zhang Y, Tan D, Tan Y. Hypoxia-induced alteration of RNA modifications in the mouse testis and sperm. Biol Reprod 2021; 105:1171-1178. [PMID: 34296257 DOI: 10.1093/biolre/ioab142] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Revised: 05/26/2021] [Accepted: 07/15/2021] [Indexed: 12/30/2022] Open
Abstract
Hypobaric hypoxia as an extreme environment in a plateau may have deleterious effects on human health. Studies have indicated that rush entry into a plateau may reduce male fertility and manifest in decreased sperm counts and weakened sperm motility. RNA modifications are sensitive to environmental changes and have recently emerged as novel post-transcriptional regulators in male spermatogenesis and intergenerational epigenetic inheritance. In the present study, we generated a mouse hypoxia model simulating the environment of 5500 meters in altitude for 35 days, which led to compromised spermatogenesis, decreased sperm counts, and an increased sperm deformation rate. Using this hypoxia model, we further applied our recently developed high-throughput RNA modification quantification platform based on LC-MS/MS, which exhibited the capacity to simultaneously examine 25 types of RNA modifications. Our results revealed an altered sperm RNA modifications signature in the testis (6 types) and mature sperm (11 types) under the hypoxia model, with 4 types showing overlap (Am, Gm, m7G, and m22G). Our data first drew the signature of RNA modification profiles and comprehensively analyzed the alteration of RNA modification levels in mouse testis and sperm under a mouse hypoxia model. These data may be highly related to human conditions under a similar hypoxia environment.
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Affiliation(s)
- Tong He
- Laboratory Animal Center, Chongqing Medical University, Yixueyuan Road 1, Yuzhong District, Chongqing, 400016, P. R. China.,Medical Center of Hematology, Xinqiao Hospital, Army Medical University, Chongqing, 400037, P. R. China
| | - Huanping Guo
- Medical Center of Hematology, Xinqiao Hospital, Army Medical University, Chongqing, 400037, P. R. China
| | - Xipeng Shen
- Laboratory Animal Center, Chongqing Medical University, Yixueyuan Road 1, Yuzhong District, Chongqing, 400016, P. R. China.,Medical Center of Hematology, Xinqiao Hospital, Army Medical University, Chongqing, 400037, P. R. China
| | - Xiao Wu
- Medical Center of Hematology, Xinqiao Hospital, Army Medical University, Chongqing, 400037, P. R. China
| | - Lin Xia
- Medical Center of Hematology, Xinqiao Hospital, Army Medical University, Chongqing, 400037, P. R. China
| | - Xuelin Jiang
- Medical Center of Hematology, Xinqiao Hospital, Army Medical University, Chongqing, 400037, P. R. China
| | - Yinying Xu
- Medical Center of Hematology, Xinqiao Hospital, Army Medical University, Chongqing, 400037, P. R. China
| | - Dan Chen
- Medical Center of Hematology, Xinqiao Hospital, Army Medical University, Chongqing, 400037, P. R. China
| | - Yunfang Zhang
- Medical Center of Hematology, Xinqiao Hospital, Army Medical University, Chongqing, 400037, P. R. China
| | - Dongmei Tan
- Laboratory Animal Center, Chongqing Medical University, Yixueyuan Road 1, Yuzhong District, Chongqing, 400016, P. R. China
| | - Yi Tan
- Laboratory Animal Center, Chongqing Medical University, Yixueyuan Road 1, Yuzhong District, Chongqing, 400016, P. R. China
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39
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Lv Y, Li T, Yang M, Su L, Zhu Z, Zhao S, Zeng W, Zheng Y. Melatonin Attenuates Chromium (VI)-Induced Spermatogonial Stem Cell/Progenitor Mitophagy by Restoration of METTL3-Mediated RNA N 6-Methyladenosine Modification. Front Cell Dev Biol 2021; 9:684398. [PMID: 34150779 PMCID: PMC8212693 DOI: 10.3389/fcell.2021.684398] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Accepted: 05/06/2021] [Indexed: 12/11/2022] Open
Abstract
Spermatogonial stem cells (SSCs) are the basis of spermatogenesis, and any damage to SSCs may result in spermatogenic disorder and male infertility. Chromium (Cr) (VI) is a proven toxin, mutagen, and carcinogen, perpetually detrimental to environmental organisms due to its intricate and enduring detoxification process in vivo. Despite this, the deleterious effects of Cr (VI) on SSCs and the underlying mechanisms remain poorly understood. In this study, we identified that Cr (VI) impaired male reproductive system in mouse testes and induced mitochondrial dynamic imbalance and mitophagy in SSCs/progenitors. Cr (VI) also downregulated the RNA N6-methyladenosine (m6A) modification levels in mitochondrial dynamic balance and mitophagy genes in SSCs/progenitors. Inspiringly, the toxic effects of Cr (VI) could be relieved by melatonin pretreatment. Melatonin alleviated Cr (VI)-induced damage to male reproductive system and autophagy in mouse testes. Melatonin also attenuated Cr (VI)-induced cell viability loss and reactive oxygen species (ROS) generation, as well as mitochondrial dynamic disorders and mitophagy in SSCs/progenitors. The protective roles of melatonin against Cr (VI)-induced mitophagy were exerted by restoration of METTL3-mediated RNA m6A modification and activation of mitochondrial fusion proteins MFN2 and OPA1, as well as inhibition of the mitophagy BNIP3/NIX receptor pathway. Thus, our study provides novel insights into the molecular mechanisms for RNA m6A modification underlying the gene regulatory network responsible for mitochondrial dynamic balance, and also lays new experimental groundwork for treatment of Cr (VI)-induced damage to male fertility.
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Affiliation(s)
- Yinghua Lv
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling, China.,Key Laboratory for Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, China
| | - Tianjiao Li
- Key Laboratory for Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, China
| | - Manman Yang
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling, China
| | - Lihong Su
- Key Laboratory for Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, China
| | - Zhendong Zhu
- College of Animal Science and Technology, Qingdao Agricultural University, Qingdao, China
| | - Sihang Zhao
- Key Laboratory for Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, China
| | - Wenxian Zeng
- Key Laboratory for Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, China
| | - Yi Zheng
- Key Laboratory for Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, China
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40
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Gui Y, Yuan S. Epigenetic regulations in mammalian spermatogenesis: RNA-m 6A modification and beyond. Cell Mol Life Sci 2021; 78:4893-4905. [PMID: 33835194 PMCID: PMC11073063 DOI: 10.1007/s00018-021-03823-9] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Revised: 03/04/2021] [Accepted: 03/25/2021] [Indexed: 02/06/2023]
Abstract
Emerging evidence shows that m6A, one of the most abundant RNA modifications in mammals, is involved in the entire process of spermatogenesis, including mitosis, meiosis, and spermiogenesis. "Writers" catalyze m6A formation on stage-specific transcripts during male germline development, while "erasers" remove m6A modification to maintain a balance between methylation and demethylation. The different functions of RNA-m6A transcripts depend on their recognition by "readers". m6A modification mediates RNA metabolism, including mRNA splicing, translation, and degradation, as well as the maturity and biosynthesis of non-coding RNAs. Sperm RNA profiles are easily affected by environmental exposure and can even be inherited for several generations, similar to epigenetic inheritance. Here, we review and summarize the critical role of m6A in different developmental stages of male germ cells, to understand of the mechanisms and epigenetic regulation of m6A modifications. In addition, we also outline and discuss the important role of non-coding RNAs in spermatogenesis and RNA modifications in epigenetic inheritance.
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Affiliation(s)
- Yiqian Gui
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Shuiqiao Yuan
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China.
- Shenzhen Huazhong University of Science and Technology Research Institute, Shenzhen, 518057, China.
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41
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Liu S, Lao Y, Wang Y, Li R, Fang X, Wang Y, Gao X, Dong Z. Role of RNA N6-Methyladenosine Modification in Male Infertility and Genital System Tumors. Front Cell Dev Biol 2021; 9:676364. [PMID: 34124065 PMCID: PMC8190709 DOI: 10.3389/fcell.2021.676364] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Accepted: 04/16/2021] [Indexed: 12/24/2022] Open
Abstract
Epigenetic alterations, particularly RNA methylation, play a crucial role in many types of disease development and progression. Among them, N6-methyladenosine (m6A) is the most common epigenetic RNA modification, and its important roles are not only related to the occurrence, progression, and aggressiveness of tumors but also affect the progression of many non-tumor diseases. The biological effects of RNA m6A modification are dynamically and reversibly regulated by methyltransferases (writers), demethylases (erasers), and m6A binding proteins (readers). This review summarized the current finding of the RNA m6A modification regulators in male infertility and genital system tumors and discussed the role and potential clinical application of the RNA m6A modification in spermatogenesis and male genital system tumors.
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Affiliation(s)
- Shuai Liu
- Department of Urology, Lanzhou University Second Hospital, Lanzhou, China.,Gansu Nephro-Urological Clinical Center, Institute of Urology, Department of Urology, Key Laboratory of Urological Disease of Gansu Province, Lanzhou University Second Hospital, Lanzhou, China
| | - Yongfeng Lao
- Department of Urology, Lanzhou University Second Hospital, Lanzhou, China.,Gansu Nephro-Urological Clinical Center, Institute of Urology, Department of Urology, Key Laboratory of Urological Disease of Gansu Province, Lanzhou University Second Hospital, Lanzhou, China
| | - Yanan Wang
- Department of Urology, Lanzhou University Second Hospital, Lanzhou, China.,Gansu Nephro-Urological Clinical Center, Institute of Urology, Department of Urology, Key Laboratory of Urological Disease of Gansu Province, Lanzhou University Second Hospital, Lanzhou, China
| | - Rongxin Li
- Department of Urology, Lanzhou University Second Hospital, Lanzhou, China.,Gansu Nephro-Urological Clinical Center, Institute of Urology, Department of Urology, Key Laboratory of Urological Disease of Gansu Province, Lanzhou University Second Hospital, Lanzhou, China
| | - Xuefeng Fang
- Department of Urology, People's Hospital of Jinchang, Jinchang, China
| | - Yunchang Wang
- Second Clinical Medical College, Lanzhou University, Lanzhou, China.,Xiangya Hospital, Central South University, Changsha, China
| | - Xiaolong Gao
- Department of Urology, People's Hospital of Jinchang, Jinchang, China
| | - Zhilong Dong
- Department of Urology, Lanzhou University Second Hospital, Lanzhou, China.,Gansu Nephro-Urological Clinical Center, Institute of Urology, Department of Urology, Key Laboratory of Urological Disease of Gansu Province, Lanzhou University Second Hospital, Lanzhou, China
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42
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Li X, Yao X, Xie H, Deng M, Gao X, Deng K, Bao Y, Wang Q, Wang F. Effects of SPATA6 on proliferation, apoptosis and steroidogenesis of Hu sheep Leydig cells in vitro. Theriogenology 2021; 166:9-20. [PMID: 33667862 DOI: 10.1016/j.theriogenology.2021.02.011] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Revised: 01/19/2021] [Accepted: 02/14/2021] [Indexed: 02/06/2023]
Abstract
This study aimed to investigate the expression pattern of spermatogenesis associated protein 6 (SPATA6) in Hu sheep testis and to ascertain the effects of SPATA6 on sheep Leydig cells (LCs) function linked to spermatogenesis. In the present study, we detected a 1970 bp cDNA fragment of SPATA6 included a 1467 bp coding sequence which encoded 487 amino acids. Meanwhile, sheep SPATA6 shared 51.70%-97.41% amino acid sequences with its orthologs compared with other species. In addition, SPATA6 was highly expressed in testis and localized in cytoplasm and nucleus of LCs as well as spermatogenic cells at different stages. Compared to the negative control (NC), SPATA6 interference promoted apoptosis of LCs with the increase of BAX/BCL-2 mRNA and protein levels, while the results of SPATA6 overexpression were on the contrary. Meanwhile, cell cycle was blocked at G2/M phase and CDK1 and CCNB1 were down-regulated after SPATA6 interference. SPATA6 overexpression induced cell cycle transfer G0/G1 into S and G2/M phase with upregulation of CDK1, CDK4, CCND1 and CCND2. Moreover, the secretion of testosterone hormone and the expression of StAR in LCs with SPATA6 overexpression were significantly promoted. Overall, our data suggest that SPATA6 is an important functional molecule of spermatogenesis, via regulating the proliferation, apoptosis and testosterone biosynthesis of Hu sheep LCs. These findings will enhance the understanding of the roles of SPATA6 in sheep spermatogenesis.
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Affiliation(s)
- Xiaodan Li
- Jiangsu Livestock Embryo Engineering Laboratory, Nanjing Agricultural University, Nanjing, 210095, China; Hu Sheep Academy, Nanjing Agricultural University, Nanjing, 210095, China; College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China
| | - Xiaolei Yao
- Jiangsu Livestock Embryo Engineering Laboratory, Nanjing Agricultural University, Nanjing, 210095, China; Hu Sheep Academy, Nanjing Agricultural University, Nanjing, 210095, China; College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China
| | - Haiqiang Xie
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China
| | - Mingtian Deng
- Jiangsu Livestock Embryo Engineering Laboratory, Nanjing Agricultural University, Nanjing, 210095, China; Hu Sheep Academy, Nanjing Agricultural University, Nanjing, 210095, China; College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China
| | - Xiaoxiao Gao
- Jiangsu Livestock Embryo Engineering Laboratory, Nanjing Agricultural University, Nanjing, 210095, China; Hu Sheep Academy, Nanjing Agricultural University, Nanjing, 210095, China; College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China
| | - Kaiping Deng
- Jiangsu Livestock Embryo Engineering Laboratory, Nanjing Agricultural University, Nanjing, 210095, China; Hu Sheep Academy, Nanjing Agricultural University, Nanjing, 210095, China; College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China
| | - Yongjin Bao
- Jiangsu Livestock Embryo Engineering Laboratory, Nanjing Agricultural University, Nanjing, 210095, China; Hu Sheep Academy, Nanjing Agricultural University, Nanjing, 210095, China; College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China
| | - Qi Wang
- Jiangsu Livestock Embryo Engineering Laboratory, Nanjing Agricultural University, Nanjing, 210095, China; Hu Sheep Academy, Nanjing Agricultural University, Nanjing, 210095, China; College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China
| | - Feng Wang
- Jiangsu Livestock Embryo Engineering Laboratory, Nanjing Agricultural University, Nanjing, 210095, China; Hu Sheep Academy, Nanjing Agricultural University, Nanjing, 210095, China; College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China.
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