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Qi HY, Zhao Z, Wei BH, Li ZF, Tan FQ, Yang WX. ERK/CREB and p38 MAPK/MMP14 Signaling Pathway Influences Spermatogenesis through Regulating the Expression of Junctional Proteins in Eriocheir sinensis Testis. Int J Mol Sci 2024; 25:7361. [PMID: 39000467 PMCID: PMC11242087 DOI: 10.3390/ijms25137361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2024] [Revised: 06/25/2024] [Accepted: 07/01/2024] [Indexed: 07/16/2024] Open
Abstract
The hemolymph-testis barrier (HTB) is a reproduction barrier in Crustacea, guaranteeing the safe and smooth process of spermatogenesis, which is similar to the blood-testis barrier (BTB) in mammals. The MAPK signaling pathway plays an essential role in spermatogenesis and maintenance of the BTB. However, only a few studies have focused on the influence of MAPK on crustacean reproduction. In the present study, we knocked down and inhibited MAPK in Eriocheir sinensis. Increased defects in spermatogenesis were observed, concurrently with a damaged HTB. Further research revealed that es-MMP14 functions downstream of ERK and p38 MAPK and degrades junctional proteins (Pinin and ZO-1); es-CREB functions in the ERK cascade as a transcription factor of ZO-1. In addition, when es-MMP14 and es-CREB were deleted, the defects in HTB and spermatogenesis aligned with abnormalities in the MAPK. However, JNK impacts the integrity of the HTB by changing the distribution of intercellular junctions. In summary, the MAPK signaling pathway maintains HTB integrity and spermatogenesis through es-MMP14 and es-CREB, which provides insights into the evolution of gene function during barrier evolution.
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Affiliation(s)
- Hong-Yu Qi
- The Sperm Laboratory, College of Life Sciences, Zhejiang University, Hangzhou 310058, China; (H.-Y.Q.)
| | - Zhan Zhao
- The Sperm Laboratory, College of Life Sciences, Zhejiang University, Hangzhou 310058, China; (H.-Y.Q.)
| | - Bang-Hong Wei
- The Sperm Laboratory, College of Life Sciences, Zhejiang University, Hangzhou 310058, China; (H.-Y.Q.)
| | - Zhen-Fang Li
- The Sperm Laboratory, College of Life Sciences, Zhejiang University, Hangzhou 310058, China; (H.-Y.Q.)
| | - Fu-Qing Tan
- School of Medicine, Zhejiang University, Hangzhou 310003, China;
| | - Wan-Xi Yang
- The Sperm Laboratory, College of Life Sciences, Zhejiang University, Hangzhou 310058, China; (H.-Y.Q.)
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2
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Zheng S, Jiang L, Qiu L. The effects of fine particulate matter on the blood-testis barrier and its potential mechanisms. REVIEWS ON ENVIRONMENTAL HEALTH 2024; 39:233-249. [PMID: 36863426 DOI: 10.1515/reveh-2022-0204] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2022] [Accepted: 11/13/2022] [Indexed: 02/17/2024]
Abstract
With the rapid expansion of industrial scale, an increasing number of fine particulate matter (PM2.5) has bringing health concerns. Although exposure to PM2.5 has been clearly associated with male reproductive toxicity, the exact mechanisms are still unclear. Recent studies demonstrated that exposure to PM2.5 can disturb spermatogenesis through destroying the blood-testis barrier (BTB), consisting of different junction types, containing tight junctions (TJs), gap junctions (GJs), ectoplasmic specialization (ES) and desmosomes. The BTB is one of the tightest blood-tissue barriers among mammals, which isolating germ cells from hazardous substances and immune cell infiltration during spermatogenesis. Therefore, once the BTB is destroyed, hazardous substances and immune cells will enter seminiferous tubule and cause adversely reproductive effects. In addition, PM2.5 also has shown to cause cells and tissues injury via inducing autophagy, inflammation, sex hormones disorder, and oxidative stress. However, the exact mechanisms of the disruption of the BTB, induced by PM2.5, are still unclear. It is suggested that more research is required to identify the potential mechanisms. In this review, we aim to understand the adverse effects on the BTB after exposure to PM2.5 and explore its potential mechanisms, which provides novel insight into accounting for PM2.5-induced BTB injury.
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Affiliation(s)
- Shaokai Zheng
- School of Public Health, Nantong University, Nantong, P. R. China
| | - Lianlian Jiang
- School of Public Health, Nantong University, Nantong, P. R. China
| | - Lianglin Qiu
- School of Public Health, Nantong University, Nantong, P. R. China
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3
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Oguejiofor CF, Eze UU, Eke IG, Eze AA, Onyejekwe OB, Anene BM. Adverse effects of exposure to petrol-generator exhaust fumes on the reproductive hormones, testis and spermatozoa in male dogs. Reprod Toxicol 2024; 123:108516. [PMID: 38042436 DOI: 10.1016/j.reprotox.2023.108516] [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] [Revised: 10/27/2023] [Accepted: 11/22/2023] [Indexed: 12/04/2023]
Abstract
There is evidence that sperm count has progressively declined in men over the recent decades. Exposure to air pollutants including petrol and diesel exhaust have been reported to impair male reproduction although there is little experimental evidence. This study investigated the effects of petrol-generator exhaust fumes (PGEF) on semen, sperm, gonadal structure and hormonal status in the dog. Sixteen adult male Basenji dogs were randomly assigned four to each of 4 groups as follows: an unexposed (Control) group and three groups exposed to graded levels of PGEF for 1, 2 or 3 h per day (hpd), respectively, for 90 days. Serum concentrations of testosterone (T), follicle stimulating hormone (FSH) and luteinizing hormone (LH) were measured on days 0 (baseline), 30, 60 and 90 of the study. At day 90, semen samples were collected for semen and sperm analysis. Testicular and epididymal tissues were subjected to gross, histopathological and histomorphometric evaluation. Graded exposure to PGEF resulted in increased serum concentration of T and decreased concentrations of FSH and LH, increased seminal plasma lipid peroxidation, seminiferous and epididymal tubular degeneration, germ cell depletion, lowered sperm concentration, decreased sperm motility and vitality, and increased sperm abnormal morphology. The close proximity between dogs and humans in exposed environments underscores the importance of these findings to human reproductive health and fertility. The findings suggest that with prolonged exposure, the impairment of reproductive functions will likely play significant roles in the decline in male fertility.
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Affiliation(s)
- C F Oguejiofor
- Department of Veterinary Obstetrics and Reproductive Diseases, Faculty of Veterinary Medicine, University of Nigeria, Nsukka 410001, Nigeria
| | - U U Eze
- Department of Veterinary Medicine, Faculty of Veterinary Medicine, University of Nigeria, Nsukka 410001, Nigeria.
| | - I G Eke
- Department of Veterinary Physiology and Pharmacology, Faculty of Veterinary Medicine, University of Nigeria, Nsukka 410001, Nigeria
| | - A A Eze
- Department of Veterinary Obstetrics and Reproductive Diseases, Faculty of Veterinary Medicine, University of Nigeria, Nsukka 410001, Nigeria
| | - O B Onyejekwe
- Department of Veterinary Physiology and Pharmacology, Faculty of Veterinary Medicine, University of Nigeria, Nsukka 410001, Nigeria
| | - B M Anene
- Department of Veterinary Medicine, Faculty of Veterinary Medicine, University of Nigeria, Nsukka 410001, Nigeria
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4
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Zhang J, Chen Z, Shan D, Wu Y, Zhao Y, Li C, Shu Y, Linghu X, Wang B. Adverse effects of exposure to fine particles and ultrafine particles in the environment on different organs of organisms. J Environ Sci (China) 2024; 135:449-473. [PMID: 37778818 DOI: 10.1016/j.jes.2022.08.013] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Revised: 08/04/2022] [Accepted: 08/08/2022] [Indexed: 10/03/2023]
Abstract
Particulate pollution is a global risk factor that seriously threatens human health. Fine particles (FPs) and ultrafine particles (UFPs) have small particle diameters and large specific surface areas, which can easily adsorb metals, microorganisms and other pollutants. FPs and UFPs can enter the human body in multiple ways and can be easily and quickly absorbed by the cells, tissues and organs. In the body, the particles can induce oxidative stress, inflammatory response and apoptosis, furthermore causing great adverse effects. Epidemiological studies mainly take the population as the research object to study the distribution of diseases and health conditions in a specific population and to focus on the identification of influencing factors. However, the mechanism by which a substance harms the health of organisms is mainly demonstrated through toxicological studies. Combining epidemiological studies with toxicological studies will provide a more systematic and comprehensive understanding of the impact of PM on the health of organisms. In this review, the sources, compositions, and morphologies of FPs and UFPs are briefly introduced in the first part. The effects and action mechanisms of exposure to FPs and UFPs on the heart, lungs, brain, liver, spleen, kidneys, pancreas, gastrointestinal tract, joints and reproductive system are systematically summarized. In addition, challenges are further pointed out at the end of the paper. This work provides useful theoretical guidance and a strong experimental foundation for investigating and preventing the adverse effects of FPs and UFPs on human health.
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Affiliation(s)
- Jianwei Zhang
- Department of Occupational and Environmental Health, School of Public Health, Tianjin Medical University, Tianjin 300070, China
| | - Zhao Chen
- Department of Occupational and Environmental Health, School of Public Health, Tianjin Medical University, Tianjin 300070, China
| | - Dan Shan
- Department of Medical, Tianjin Stomatological Hospital, School of Medicine, Nankai University, Tianjin 300041, China
| | - Yang Wu
- Department of Occupational and Environmental Health, School of Public Health, Tianjin Medical University, Tianjin 300070, China
| | - Yue Zhao
- Department of Occupational and Environmental Health, School of Public Health, Tianjin Medical University, Tianjin 300070, China
| | - Chen Li
- Department of Occupational and Environmental Health, School of Public Health, Tianjin Medical University, Tianjin 300070, China; Tianjin Key Laboratory of Environment, Nutrition and Public Health, Tianjin 300070, China; National Demonstration Center for Experimental Preventive Medicine Education (Tianjin Medical University), Tianjin 300070, China
| | - Yue Shu
- Department of Occupational and Environmental Health, School of Public Health, Tianjin Medical University, Tianjin 300070, China
| | - Xiaoyu Linghu
- Department of Occupational and Environmental Health, School of Public Health, Tianjin Medical University, Tianjin 300070, China
| | - Baiqi Wang
- Department of Occupational and Environmental Health, School of Public Health, Tianjin Medical University, Tianjin 300070, China; Tianjin Key Laboratory of Environment, Nutrition and Public Health, Tianjin 300070, China; National Demonstration Center for Experimental Preventive Medicine Education (Tianjin Medical University), Tianjin 300070, China.
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5
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Omolaoye TS, Skosana BT, Ferguson LM, Ramsunder Y, Ayad BM, Du Plessis SS. Implications of Exposure to Air Pollution on Male Reproduction: The Role of Oxidative Stress. Antioxidants (Basel) 2024; 13:64. [PMID: 38247488 PMCID: PMC10812603 DOI: 10.3390/antiox13010064] [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: 09/05/2023] [Revised: 10/19/2023] [Accepted: 10/23/2023] [Indexed: 01/23/2024] Open
Abstract
Air pollution, either from indoor (household) or outdoor (ambient) sources, occurs when there is presence of respirable particles in the form of chemical, physical, or biological agents that modify the natural features of the atmosphere or environment. Today, almost 2.4 billion people are exposed to hazardous levels of indoor pollution, while 99% of the global population breathes air pollutants that exceed the World Health Organization guideline limits. It is not surprising that air pollution is the world's leading environmental cause of diseases and contributes greatly to the global burden of diseases. Upon entry, air pollutants can cause an increase in reactive oxygen species (ROS) production by undergoing oxidation to generate quinones, which further act as oxidizing agents to yield more ROS. Excessive production of ROS can cause oxidative stress, induce lipid peroxidation, enhance the binding of polycyclic aromatic hydrocarbons (PAHs) to their receptors, or bind to PAH to cause DNA strand breaks. The continuous and prolonged exposure to air pollutants is associated with the development or exacerbation of pathologies such as acute or chronic respiratory and cardiovascular diseases, neurodegenerative and skin diseases, and even reduced fertility potential. Males and females contribute to infertility equally, and exposure to air pollutants can negatively affect reproduction. In this review, emphasis will be placed on the implications of exposure to air pollutants on male fertility potential, bringing to light its effects on semen parameters (basic and advanced) and male sexual health. This study will also touch on the clinical implications of air pollution on male reproduction while highlighting the role of oxidative stress.
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Affiliation(s)
- Temidayo S. Omolaoye
- College of Medicine, Mohammed Bin Rashid University of Medicine and Health Sciences, Dubai P.O. Box 505055, United Arab Emirates;
| | - Bongekile T. Skosana
- Division of Medical Physiology, Faculty of Medicine and Health Sciences, Stellenbosch University, Tygerberg, Cape Town 7602, South Africa; (B.T.S.); (L.M.F.); (Y.R.)
| | - Lisa Marie Ferguson
- Division of Medical Physiology, Faculty of Medicine and Health Sciences, Stellenbosch University, Tygerberg, Cape Town 7602, South Africa; (B.T.S.); (L.M.F.); (Y.R.)
| | - Yashthi Ramsunder
- Division of Medical Physiology, Faculty of Medicine and Health Sciences, Stellenbosch University, Tygerberg, Cape Town 7602, South Africa; (B.T.S.); (L.M.F.); (Y.R.)
| | - Bashir M. Ayad
- Department of Physiology, Faculty of Medicine, Misurata University, Misratah P.O. Box 2478, Libya;
| | - Stefan S. Du Plessis
- College of Medicine, Mohammed Bin Rashid University of Medicine and Health Sciences, Dubai P.O. Box 505055, United Arab Emirates;
- Division of Medical Physiology, Faculty of Medicine and Health Sciences, Stellenbosch University, Tygerberg, Cape Town 7602, South Africa; (B.T.S.); (L.M.F.); (Y.R.)
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6
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Meng F, Hao H, Guo Z, Liu W, Zhang S, Tang W, Ma W, Shang X. Silica nanoparticles induces sperm granuloma formation and blood-epididymal barrier disruption via the p38 MAPK pathway in mice. Food Chem Toxicol 2023; 182:114113. [PMID: 37890760 DOI: 10.1016/j.fct.2023.114113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Accepted: 10/17/2023] [Indexed: 10/29/2023]
Abstract
Previous researches have demonstrated that the silica nanoparticles (SiNPs), which are widely used in all aspects of life, are hazardous to the male reproductive system. However, the cellular and molecular mechanism underlying SiNPs toxicity to the epididymis remain unclear. In this present study, a total of 60 male mice were separated into 4 groups and then treated to SiNPs for 7 consecutive days at a dose of 0, 2.5, 10, and 20 mg/kg body weight. The results showed that SiNPs could alter the histological structure of epididymis and induce sperm granuloma formation, leading to decreased sperm quality and quantity. In addition, the ultrastructure and permeability of blood-epididymal barrier (BEB) were impaired after exposure to SiNPs, and a significant downregulation of integral membrane proteins at the BEB was detected. SiNPs were also found to raise the percentage of macrophages in the epithelium and interstitium of the epididymis, followed by increased expression of pro-inflammatory molecules including TNF α, IL-1β, and IL-6. Meanwhile, SiNPs induced oxidative stress in epididymis, as shown by the markedly elevated generation of reactive oxygen species (ROS) and malondialdehyde (MDA) and upregulated activity of superoxide dismutase (SOD). Further study showed that SiNPs activated the p38 MAPK signaling pathway, which accelerated clathrin-mediated endocytosis of integral membrane proteins and perturb vesicular trafficking. Taken together, exposure to SiNPs could induce sperm granuloma formation and impair the integrity of BEB in mice through activating the p38 MAPK pathway.
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Affiliation(s)
- Fangyu Meng
- School of Public Health, North China University of Science and Technology, Tangshan, Hebei 063210, PR China
| | - Huiyu Hao
- School of Public Health, North China University of Science and Technology, Tangshan, Hebei 063210, PR China
| | - Zhiyi Guo
- School of Public Health, North China University of Science and Technology, Tangshan, Hebei 063210, PR China; Tangshan Key Laboratory for Nucleic Acid Genetic Information, PR China
| | - Wenpeng Liu
- School of Public Health, North China University of Science and Technology, Tangshan, Hebei 063210, PR China
| | - Shumin Zhang
- School of Public Health, North China University of Science and Technology, Tangshan, Hebei 063210, PR China
| | - Wenxuan Tang
- School of Public Health, North China University of Science and Technology, Tangshan, Hebei 063210, PR China
| | - Wendong Ma
- School of Public Health, North China University of Science and Technology, Tangshan, Hebei 063210, PR China
| | - Xuan Shang
- School of Public Health, North China University of Science and Technology, Tangshan, Hebei 063210, PR China; Tangshan Key Laboratory for Nucleic Acid Genetic Information, PR China.
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7
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Zheng S, Zhao N, Lin X, Qiu L. Impacts and potential mechanisms of fine particulate matter (PM 2.5) on male testosterone biosynthesis disruption. REVIEWS ON ENVIRONMENTAL HEALTH 2023; 0:reveh-2023-0064. [PMID: 37651650 DOI: 10.1515/reveh-2023-0064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Accepted: 07/18/2023] [Indexed: 09/02/2023]
Abstract
Exposure to PM2.5 is the most significant air pollutant for health risk. The testosterone level in male is vulnerable to environmental toxicants. In the past, researchers focused more attention on the impacts of PM2.5 on respiratory system, cardiovascular system, and nervous system, and few researchers focused attention on the reproductive system. Recent studies have reported that PM2.5 involved in male testosterone biosynthesis disruption, which is closely associated with male reproductive health. However, the underlying mechanisms by which PM2.5 causes testosterone biosynthesis disruption are still not clear. To better understand its potential mechanisms, we based on the existing scientific publications to critically and comprehensively reviewed the role and potential mechanisms of PM2.5 that are participated in testosterone biosynthesis in male. In this review, we summarized the potential mechanisms of PM2.5 triggering the change of testosterone level in male, which involve in oxidative stress, inflammatory response, ferroptosis, pyroptosis, autophagy and mitophagy, microRNAs (miRNAs), endoplasmic reticulum (ER) stress, and N6-methyladenosine (m6A) modification. It will provide new suggestions and ideas for prevention and treatment of testosterone biosynthesis disruption caused by PM2.5 for future research.
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Affiliation(s)
- Shaokai Zheng
- School of Public Health, Nantong University, Nantong, P.R. China
| | - Nannan Zhao
- School of Public Health, Nantong University, Nantong, P.R. China
| | - Xiaojun Lin
- School of Public Health, Nantong University, Nantong, P.R. China
| | - Lianglin Qiu
- School of Public Health, Nantong University, Nantong, P.R. China
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Tanveer M, Mansha N, Nimra A, Khawar MB, Afzal A, Afzal H, Farooq M, Ehsan S, Rana R, Shahzaman S. Microplastics: unraveling the signaling pathways involved in reproductive health. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:95077-95085. [PMID: 37584803 DOI: 10.1007/s11356-023-29273-3] [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: 12/27/2022] [Accepted: 08/07/2023] [Indexed: 08/17/2023]
Abstract
Microplastics (MPs) are biologically active environmental pollutants having significant impact on the ecosystem and human health. MPs have been reported to increase oxidative stress, resulting in tissue damage, developmental abnormalities, metabolic disorders, epigenetic changes, abnormal reproduction, and reduced gamete quality. At present, most of the existing literature has focused on the effects of MPs on the reproduction of various aquatic organisms; however, the effects of MPs on mammalian reproduction specifically humans are least studied except a few ones fragmentally discussing the effects of MPs on gametogenesis in human. This review discusses effects of MPs on male and female reproduction with a focus on different metabolic pathways involved in compromised gamete quality, gamete toxicity, apoptosis, and DNA damage.
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Affiliation(s)
- Muhammad Tanveer
- Molecular Medicine and Cancer Therapeutics Lab, Department of Zoology, Faculty of Science and Technology, University of Central Punjab, Lahore, Pakistan
| | - Nimra Mansha
- Molecular Medicine and Cancer Therapeutics Lab, Department of Zoology, Faculty of Science and Technology, University of Central Punjab, Lahore, Pakistan
| | - Afzal Nimra
- Department of Zoology, Faculty of Science and Technology, Environmental Health and Wildlife, University of Central Punjab, Lahore, Pakistan.
| | - Muhammad Babar Khawar
- Applied Molecular Biology and Biomedicine Lab, Department of Zoology, University of Narowal, Narowal, Pakistan
- Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, China
- Jiangsu Key Laboratory of Experimental and, Translational Non-Coding RNA Research, Yangzhou, China
| | - Ali Afzal
- Molecular Medicine and Cancer Therapeutics Lab, Department of Zoology, Faculty of Science and Technology, University of Central Punjab, Lahore, Pakistan
| | - Hanan Afzal
- Molecular Medicine and Cancer Therapeutics Lab, Department of Zoology, Faculty of Science and Technology, University of Central Punjab, Lahore, Pakistan
| | - Muhammad Farooq
- Molecular Medicine and Cancer Therapeutics Lab, Department of Zoology, Faculty of Science and Technology, University of Central Punjab, Lahore, Pakistan
| | - Sadia Ehsan
- Molecular Medicine and Cancer Therapeutics Lab, Department of Zoology, Faculty of Science and Technology, University of Central Punjab, Lahore, Pakistan
| | - Rabbia Rana
- Molecular Medicine and Cancer Therapeutics Lab, Department of Zoology, Faculty of Science and Technology, University of Central Punjab, Lahore, Pakistan
| | - Sara Shahzaman
- Molecular Medicine and Cancer Therapeutics Lab, Department of Zoology, Faculty of Science and Technology, University of Central Punjab, Lahore, Pakistan
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9
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Zou Y, Chen X, Tian X, Guo W, Ruan Y, Tang W, Fu K, Ji T. Transcriptomic Analysis of the Developing Testis and Spermatogenesis in Qianbei Ma Goats. Genes (Basel) 2023; 14:1334. [PMID: 37510239 PMCID: PMC10379175 DOI: 10.3390/genes14071334] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 06/22/2023] [Accepted: 06/23/2023] [Indexed: 07/30/2023] Open
Abstract
Reproductive competence in male mammals depends on testicular function. Testicular development and spermatogenesis in goats involve highly complex physiological processes. In this study, six testes were, respectively, obtained from each age group, immature (1 month), sexually mature (6 months) and physically mature (12 months old) Qianbei Ma goats. RNA-Seq was performed to assess testicular mRNA expression in Qianbei Ma goats at different developmental stages. Totally, 18 libraries were constructed to screen genes and pathways involved in testis development and spermatogenesis. Totally, 9724 upregulated and 4153 downregulated DEGs were found between immature (I) and sexually mature (S) samples; 7 upregulated and 3 downregulated DEGs were found between sexually mature (S) and physically mature (P) samples, and about 4% of the DEGs underwent alternative splicing events between I and S. Select genes were assessed by qRT-PCR, corroborating RNA-Seq findings. The detected genes have key roles in multiple developmental stages of goat testicular development and spermatogenesis. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) analyses were performed to determine differentially expressed genes (DEGs). GO analysis revealed DEGs between S and P contributed to "reproduction process", "channel activity" and "cell periphery part" between I and S, and in "ion transport process", "channel activity" and "transporter complex part". KEGG analysis suggested the involvement of "glycerolipid metabolism", "steroid hormone biosynthesis" and "MAPK signaling pathway" in testis development and spermatogenesis. Genes including IGF1, TGFB1, TGFBR1 and EGFR may control the development of the testis from immature to sexually mature, which might be important candidate genes for the development of goat testis. The current study provides novel insights into goat testicular development and spermatogenesis.
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Affiliation(s)
- Yue Zou
- Key Laboratory of Animal Genetics, Breeding and Reproduction in the Plateau Mountainous Region, Ministry of Education, Guizhou University, Guiyang 550025, China
- Key Laboratory of Animal Genetics, Breeding and Reproduction, Guiyang 550025, China
- College of Animal Science, Guizhou University, Guiyang 550025, China
| | - Xiang Chen
- Key Laboratory of Animal Genetics, Breeding and Reproduction in the Plateau Mountainous Region, Ministry of Education, Guizhou University, Guiyang 550025, China
- Key Laboratory of Animal Genetics, Breeding and Reproduction, Guiyang 550025, China
- College of Animal Science, Guizhou University, Guiyang 550025, China
| | - Xingzhou Tian
- Key Laboratory of Animal Genetics, Breeding and Reproduction in the Plateau Mountainous Region, Ministry of Education, Guizhou University, Guiyang 550025, China
- Key Laboratory of Animal Genetics, Breeding and Reproduction, Guiyang 550025, China
- College of Animal Science, Guizhou University, Guiyang 550025, China
| | - Wei Guo
- Key Laboratory of Animal Genetics, Breeding and Reproduction in the Plateau Mountainous Region, Ministry of Education, Guizhou University, Guiyang 550025, China
- Key Laboratory of Animal Genetics, Breeding and Reproduction, Guiyang 550025, China
- College of Animal Science, Guizhou University, Guiyang 550025, China
| | - Yong Ruan
- Key Laboratory of Animal Genetics, Breeding and Reproduction in the Plateau Mountainous Region, Ministry of Education, Guizhou University, Guiyang 550025, China
- Key Laboratory of Animal Genetics, Breeding and Reproduction, Guiyang 550025, China
- College of Animal Science, Guizhou University, Guiyang 550025, China
| | - Wen Tang
- Key Laboratory of Animal Genetics, Breeding and Reproduction in the Plateau Mountainous Region, Ministry of Education, Guizhou University, Guiyang 550025, China
- Key Laboratory of Animal Genetics, Breeding and Reproduction, Guiyang 550025, China
- College of Animal Science, Guizhou University, Guiyang 550025, China
| | - Kaibin Fu
- Key Laboratory of Animal Genetics, Breeding and Reproduction in the Plateau Mountainous Region, Ministry of Education, Guizhou University, Guiyang 550025, China
- Key Laboratory of Animal Genetics, Breeding and Reproduction, Guiyang 550025, China
- College of Animal Science, Guizhou University, Guiyang 550025, China
| | - Taotao Ji
- Key Laboratory of Animal Genetics, Breeding and Reproduction in the Plateau Mountainous Region, Ministry of Education, Guizhou University, Guiyang 550025, China
- Key Laboratory of Animal Genetics, Breeding and Reproduction, Guiyang 550025, China
- College of Animal Science, Guizhou University, Guiyang 550025, China
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10
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Liu X, Ge P, Lu Z, Yang R, Liu Z, Zhao F, Chen M. Reproductive toxicity and underlying mechanisms of fine particulate matter (PM 2.5) on Caenorhabditis elegans in different seasons. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2022; 248:114281. [PMID: 36379073 DOI: 10.1016/j.ecoenv.2022.114281] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2022] [Revised: 10/31/2022] [Accepted: 11/07/2022] [Indexed: 06/16/2023]
Abstract
Although numerous studies have investigated that atmospheric fine particulate matter (PM2.5) can be toxic to environmental organisms, the research on the reproductive toxicity of PM2.5 is limited, and the key toxic components and underlying mechanisms remain unknown. In this work, PM2.5 samples of four seasons in Nanjing from March 1, 2021, to February 28, 2022 were collected and the chemical components were analyzed. Caenorhabditis elegans (C. elegans) was employed to conduct the toxicological testing. The reproductive toxicity of PM2.5 to C. elegans in different seasons was evaluated by multiple reproductive endpoints. Exposure to high concentrations of PM2.5 significantly decreased the brood size and the number of fertilized eggs in utero. PM2.5 exposure also increased the number of germ cell corpses and caused abnormal expression of apoptosis-related genes (ced-9, ced-4, and ced-3), which confirmed that PM2.5 induced germline apoptosis. In addition, PM2.5 exposure significantly increased the production of reactive oxygen species (ROS) in C. elegans and the fluorescence intensity of HUS-1 protein in of transgenic strain WS1433. Meanwhile, the expression of genes related to DNA damage (cep-1, clk-2, egl-1, and hus-1) and oxidative stress (mev-1, isp-1, and gas-1) also significantly altered in C. elegans, suggesting induction of DNA damage and oxidative stress. According to Pearson correlation analyses, DNA damage and oxidative stress were significantly correlated with multiple reproductive endpoints in C. elegans. Thus, it was speculated that PM2.5 caused reproductive dysfunction and germ cell apoptosis in C. elegans may be by inducing ROS and DNA damage. In addition, heavy metals in PM2.5 were significantly correlated with multiple endpoints at physiological and biochemical, suggesting that the heavy metals might be an important contributor to the reproductive toxicity induced by PM2.5.
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Affiliation(s)
- Xiaoming Liu
- Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, School of Environmental Science and Engineering, Nanjing University of Information Science & Technology, Nanjing 210044, China
| | - Pengxiang Ge
- Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, School of Environmental Science and Engineering, Nanjing University of Information Science & Technology, Nanjing 210044, China
| | - Zhenyu Lu
- Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, School of Environmental Science and Engineering, Nanjing University of Information Science & Technology, Nanjing 210044, China
| | - Rongying Yang
- Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, School of Environmental Science and Engineering, Nanjing University of Information Science & Technology, Nanjing 210044, China
| | - Zhengjiang Liu
- Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, School of Environmental Science and Engineering, Nanjing University of Information Science & Technology, Nanjing 210044, China
| | - Fen Zhao
- Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, School of Environmental Science and Engineering, Nanjing University of Information Science & Technology, Nanjing 210044, China
| | - Mindong Chen
- Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, School of Environmental Science and Engineering, Nanjing University of Information Science & Technology, Nanjing 210044, China.
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11
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Liu H, Ding S, Nie H, Shi Y, Lai W, Liu X, Li K, Tian L, Xi Z, Lin B. PM 2.5 exposure at different concentrations and modes induces reproductive toxicity in male rats mediated by oxidative and endoplasmic reticulum stress. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2022; 244:114042. [PMID: 36087467 DOI: 10.1016/j.ecoenv.2022.114042] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Revised: 08/15/2022] [Accepted: 08/29/2022] [Indexed: 06/15/2023]
Abstract
The molecular mechanisms of PM2.5 exposure in the male reproductive system, have scarcely been studied. Here, we demonstrate the possible relationship and molecular mechanisms between endoplasmic reticulum stress (ERS), oxidative stress, and reproductive toxicity caused by PM2.5. A "PM2.5 real-time online concentrated animal whole-body exposure system" was employed to expose male Wistar rats to PM2.5 for 12 weeks, which could induce sperm quality decline, apoptosis, inflammation, oxidative stress, ERS, and histopathological damage in the testis. In vitro study on cultured primary testicular spermatogonia and Leydig cells confirmed that treatment with PM2.5 (0-320 μg/mL) for 24 h decreased cell survival rate, increased reactive oxygen species, lactate dehydrogenase and 8-hydroxydeoxyguanosine levels, induced DNA damage, ERS and apoptosis, and inhibit the secretion and synthesis of testosterone in Leydig cells. These results clarified that ERS pathways triggered by oxidative stress could significantly induce CHOP and caspase-12 activation, which are significantly associated with cell apoptosis. However, oxidative stress and ERS inhibitors significantly inhibited the occurrence of these injuries. In conclusion, PM2.5 triggers the ERS pathway and induces DNA damage in rat testicular cells through oxidative stress, ultimately leading to cellular apoptosis. Furthermore, high-concentration intermittent inhalation was more harmful than low-concentration continuous inhalation when the total mass of PM2.5 exposure was the same.
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Affiliation(s)
- Huanliang Liu
- Tianjin Institute of Environmental and Operational Medicine, Tianjin 300050, China; Tianjin Key Laboratory of Risk Assessment and Control Technology for Environment & Food Safety, Tianjin 300050, China
| | - Susu Ding
- Tianjin Institute of Environmental and Operational Medicine, Tianjin 300050, China; Tianjin Key Laboratory of Risk Assessment and Control Technology for Environment & Food Safety, Tianjin 300050, China
| | - Huipeng Nie
- Tianjin Institute of Environmental and Operational Medicine, Tianjin 300050, China; Tianjin Key Laboratory of Risk Assessment and Control Technology for Environment & Food Safety, Tianjin 300050, China
| | - Yue Shi
- Tianjin Institute of Environmental and Operational Medicine, Tianjin 300050, China; Tianjin Key Laboratory of Risk Assessment and Control Technology for Environment & Food Safety, Tianjin 300050, China
| | - Wenqing Lai
- Tianjin Institute of Environmental and Operational Medicine, Tianjin 300050, China; Tianjin Key Laboratory of Risk Assessment and Control Technology for Environment & Food Safety, Tianjin 300050, China
| | - Xuan Liu
- Tianjin Institute of Environmental and Operational Medicine, Tianjin 300050, China; Tianjin Key Laboratory of Risk Assessment and Control Technology for Environment & Food Safety, Tianjin 300050, China
| | - Kang Li
- Tianjin Institute of Environmental and Operational Medicine, Tianjin 300050, China; Tianjin Key Laboratory of Risk Assessment and Control Technology for Environment & Food Safety, Tianjin 300050, China
| | - Lei Tian
- Tianjin Institute of Environmental and Operational Medicine, Tianjin 300050, China; Tianjin Key Laboratory of Risk Assessment and Control Technology for Environment & Food Safety, Tianjin 300050, China
| | - Zhuge Xi
- Tianjin Institute of Environmental and Operational Medicine, Tianjin 300050, China; Tianjin Key Laboratory of Risk Assessment and Control Technology for Environment & Food Safety, Tianjin 300050, China.
| | - Bencheng Lin
- Tianjin Institute of Environmental and Operational Medicine, Tianjin 300050, China; Tianjin Key Laboratory of Risk Assessment and Control Technology for Environment & Food Safety, Tianjin 300050, China.
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12
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Liu C, Yang J, Du X, Geng X. Filtered air intervention modulates hypothalamic-pituitary-thyroid/gonadal axes by attenuating inflammatory responses in adult rats after fine particulate matter (PM2.5) exposure. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:74851-74860. [PMID: 35641749 DOI: 10.1007/s11356-022-21102-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Accepted: 05/22/2022] [Indexed: 06/15/2023]
Abstract
We have previously reported that filtered air (FA) intervention reduces inflammation and hypothalamus-pituitary-adrenal axis activation after fine particulate matter (PM2.5 exposure). Whether FA also modulates the hypothalamic-pituitary-thyroid (HPT) and hypothalamic-pituitary-gonadal (HPG) axes in rats after PM2.5 exposure is still unknown. Adult Sprague-Dawley rats were exposed to PM2.5 by using a "real-world" PM2.5 exposure system, and the FA intervention was conducted by renewing for 15 days. PM2.5 inhalation decreased thyrotropin-releasing hormone (TRH) and thyroxine (T4) levels in both male and female rats, and thyroid-stimulating hormone (TSH) level in male rats. FA intervention attenuated the reduction in TRH and TSH levels in male rats and reduction in T4 level in female rats. PM2.5 inhalation also reduced testosterone (T) level in male rats, and estradiol (E2) and progesterone (PROG) levels in female rats, and these changes were attenuated after FA intervention. The FA intervention attenuated the decreases in CD8 T cells and T cells induced by PM2.5 inhalation in female rats only by flow cytometry analysis. In blood, FA interventions ameliorated IL-6 and IL-1β mRNA levels in both male and female rats after PM2.5 exposure. FA intervention restored the IL-4 and IL-10 levels in female rats after PM2.5 exposure. Moreover, FA intervention ameliorated the inflammatory responses induced by PM2.5 inhalation in the thyroid and gonads in both male and female rats. These data indicate that FA intervention exerted an effect on modulating the hormonal balance of the HPT and HPG axes, and this may be related to a reduction in the inflammatory responses in the thyroid and gonads of PM2.5-treated rats, respectively.
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Affiliation(s)
- Cuiying Liu
- School of Nursing, Capital Medical University, Beijing, China.
- China-America Institute of Neuroscience, Beijing Luhe Hospital, Capital Medical University, Beijing, China.
| | - Jian Yang
- China-America Institute of Neuroscience, Beijing Luhe Hospital, Capital Medical University, Beijing, China
| | - Xiangnan Du
- Department of Neurology, Beijing Luhe Hospital, Capital Medical University, Beijing, China
| | - Xiaokun Geng
- China-America Institute of Neuroscience, Beijing Luhe Hospital, Capital Medical University, Beijing, China
- Department of Neurology, Beijing Luhe Hospital, Capital Medical University, Beijing, China
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13
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Role of p38 MAPK Signalling in Testis Development and Male Fertility. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:6891897. [PMID: 36092154 PMCID: PMC9453003 DOI: 10.1155/2022/6891897] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/10/2022] [Revised: 07/31/2022] [Accepted: 08/18/2022] [Indexed: 12/03/2022]
Abstract
The testis is an important male reproductive organ, which ensures reproductive function via the secretion of testosterone and the generation of spermatozoa. Testis development begins in the embryonic period, continues after birth, and generally reaches functional maturation at puberty. The stress-activated kinase, p38 mitogen-activated protein kinase (MAPK), regulates multiple cell processes including proliferation, differentiation, apoptosis, and cellular stress responses. p38 MAPK signalling plays a crucial role in testis development by regulating spermatogenesis, the fate determination of pre-Sertoli, and primordial germ cells during embryogenesis, the proliferation of testicular cells in the postnatal period, and the functions of mature Sertoli and Leydig cells. In addition, p38 MAPK signalling is involved in decreased male fertility when exposed to various harmful stimuli. This review will describe in detail the biological functions of p38 MAPK signalling in testis development and male reproduction, together with its pathological role in male infertility.
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14
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Chemical Contamination in Bread from Food Processing and Its Environmental Origin. Molecules 2022; 27:molecules27175406. [PMID: 36080171 PMCID: PMC9457569 DOI: 10.3390/molecules27175406] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Revised: 08/14/2022] [Accepted: 08/21/2022] [Indexed: 12/03/2022] Open
Abstract
Acrylamide (AA), furan and furan derivatives, polycyclic aromatic amines (PAHs), monochloropropanediols (MCPDs), glycidol, and their esters are carcinogens that are being formed in starchy and high-protein foodstuffs, including bread, through baking, roasting, steaming, and frying due to the Maillard reaction. The Maillard reaction mechanism has also been described as the source of food processing contaminants. The above-mentioned carcinogens, especially AA and furan compounds, are crucial substances responsible for the aroma of bread. The other groups of bread contaminants are mycotoxins (MTs), toxic metals (TMs), and pesticides. All these contaminants can be differentiated depending on many factors such as source, the concentration of toxicant in the different wheat types, formation mechanism, metabolism in the human body, and hazardous exposure effects to humans. The following paper characterizes the most often occurring contaminants in the bread from each group. The human exposure to bread contaminants and their safe ranges, along with the International Agency for Research on Cancer (IARC) classification (if available), also have been analyzed.
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15
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Liu J, Huang J, Gao L, Sang Y, Li X, Zhou G, Cao L, Lu H, Zhou X, Ren L. Maternal exposure to PM 2.5 disrupting offspring spermatogenesis through induced sertoli cells apoptosis via inhibin B hypermethylation in mice. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2022; 241:113760. [PMID: 35709672 DOI: 10.1016/j.ecoenv.2022.113760] [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: 04/08/2022] [Revised: 05/16/2022] [Accepted: 06/06/2022] [Indexed: 06/15/2023]
Abstract
Particulate Matter 2.5 (PM2.5) disrupts endocrine functions and may negatively affect sperm quality and quantity in males; however, the long-term effects and potential mechanisms of this effect are unknown. This study aimed to investigate the epigenetic mechanism of maternal exposure to PM2.5-induced inhibin B hypermethylation in male offspring. In this experiment design, pregnant C57BL/6 mice were treated with two doses of PM2.5 (4.8 and 43.2 mg/kg bw). The membrane control group was given a sampling membrane and the control group received nothing. Following the formation of the vaginal plug, intratracheal instillation of PM2.5 was administered every three days until delivery of the pups. To assess the effect of PM2.5 in vitro, TM4 cells, a Sertoli-like cell line, was treated with different concentrations (0, 25, 50, 100 μg/mL) of PM2.5 for 24 h. The results displayed that Sperm motility, as well as the number of adult offspring, was decreased in the PM2.5 exposed group relative to the untreated controls. Increased vacuolization was observed in the Sertoli cells of mice that were exposed to PM2.5 in utero. The levels of inhibin and testosterone were reduced and the levels of LH and FSH increased in the PM2.5 groups relative to the untreated controls. In vitro, PM2.5 resulted in cell cycle inhibition as well as increased apoptosis in TM4 cells. Moreover, PM2.5-induced inhibin B hypermethylation and activation of the p21/Cleaved Caspase-3 pathway resulted in TM4 cell apoptosis that was rescued through the use of a DNA methylation inhibitor. Together, our data suggest that prenatal exposure to PM2.5 results in inhibin B hypermethylation and can activate the p21/Cleaved Caspase-3 pathway, resulting in Sertoli cell apoptosis, aberrant secretion of androgen binding protein, and decreased testosterone, thus resulting in the inhibition of spermatogenesis.
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Affiliation(s)
- Jianhui Liu
- Central Laboratory, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing Maternal and Child Health Care Hospital, Beijing 100026, China
| | - Jing Huang
- School of Nursing, Peking University, Beijing 100191, China
| | - Leqiang Gao
- Department of Toxicology and Hygienic Chemistry, School of Public Health, Capital Medical University, Beijing 100069, China
| | - Yujian Sang
- Department of Toxicology and Hygienic Chemistry, School of Public Health, Capital Medical University, Beijing 100069, China
| | - Xiangyang Li
- Department of Toxicology and Hygienic Chemistry, School of Public Health, Capital Medical University, Beijing 100069, China
| | - Guiqing Zhou
- Department of Toxicology and Hygienic Chemistry, School of Public Health, Capital Medical University, Beijing 100069, China
| | - Linlin Cao
- Department of Obstetrics and Gynecology, Peking University Third Hospital, China; National Clinical Research Center for Obstetrics and Gynecology (Peking University Third Hospital), China
| | - Hong Lu
- School of Nursing, Peking University, Beijing 100191, China
| | - Xianqing Zhou
- Department of Toxicology and Hygienic Chemistry, School of Public Health, Capital Medical University, Beijing 100069, China.
| | - Lihua Ren
- School of Nursing, Peking University, Beijing 100191, China.
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16
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Zheng P, Chen Z, Shi J, Xue Y, Bai Y, Kang Y, Xu H, Jia G, Wang T. Association between ambient air pollution and blood sex hormones levels in men. ENVIRONMENTAL RESEARCH 2022; 211:113117. [PMID: 35304116 DOI: 10.1016/j.envres.2022.113117] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Revised: 03/07/2022] [Accepted: 03/10/2022] [Indexed: 06/14/2023]
Abstract
Concerns are growing over time on the adverse health effects of air pollution. However, the association between ambient air pollution and blood sex hormones in men is poorly understood. We included 72,917 men aged 20-55 years from February 2014 to December 2019 in Beijing, China in this study. Blood testosterone, follicle stimulating hormone, luteinizing hormone, estradiol, and prolactin levels of each participant were measured. We collected exposure data of daily ambient levels of particulate matter ≤10 μm (PM10) and ≤2.5 μm (PM2.5), nitrogen dioxide, sulfur dioxide (SO2), carbon monoxide, and ozone. Generalized linear mixed models were used to analyze the potential association between ambient air pollution exposure and blood sex hormone levels. The results showed that both immediate and short-term cumulative PM2.5, PM10, and SO2 exposure was related to altered serum sex hormone levels in men, especially testosterone. An increase of 10 μg/m3 in PM2.5 and PM10 in the current day was related to a 1.6% (95% confidence interval [CI]: 0.9%-2.3%) and 1.1% (95% CI: 0.5%-1.6%) decrease in testosterone, respectively, and a decreasing tendency of accumulated effects persisted within lag 0-30 days. The present study demonstrated that it is important to control ambient air pollution exposure to reduce effects on the reproductive health of men.
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Affiliation(s)
- Pai Zheng
- Department of Occupational and Environmental Health Sciences, School of Public Health, Peking University, Beijing, 100191, China
| | - Zhangjian Chen
- Department of Occupational and Environmental Health Sciences, School of Public Health, Peking University, Beijing, 100191, China
| | - Jiaqi Shi
- Department of Occupational and Environmental Health Sciences, School of Public Health, Peking University, Beijing, 100191, China
| | - Yuting Xue
- Department of Laboratory Medicine, Peking University Third Hospital, Beijing, 100191, China
| | - Yi Bai
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing, 100191, China
| | - Yulin Kang
- Institute of Environmental Information, Chinese Research Academy of Environmental Sciences, Beijing, China
| | - Huiyu Xu
- Center for Reproductive Medicine, Peking University Third Hospital, Beijing, 100191, China
| | - Guang Jia
- Department of Occupational and Environmental Health Sciences, School of Public Health, Peking University, Beijing, 100191, China.
| | - Tiancheng Wang
- Department of Laboratory Medicine, Peking University Third Hospital, Beijing, 100191, China.
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17
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Shi F, Zhang Z, Cui H, Wang J, Wang Y, Tang Y, Yang W, Zou P, Ling X, Han F, Liu J, Chen Q, Liu C, Cao J, Ao L. Analysis by transcriptomics and metabolomics for the proliferation inhibition and dysfunction through redox imbalance-mediated DNA damage response and ferroptosis in male reproduction of mice and TM4 Sertoli cells exposed to PM 2.5. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2022; 238:113569. [PMID: 35512470 DOI: 10.1016/j.ecoenv.2022.113569] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2022] [Revised: 04/12/2022] [Accepted: 04/25/2022] [Indexed: 06/14/2023]
Abstract
Sertoli cells play a pivotal role in the complex spermatogenesis process. This study aimed to investigate the effects of PM2.5 on Sertoli cells using the TM4 cell line and a real time whole-body PM2.5 exposure mouse model, and further explore the underlying mechanisms through the application of metabolomics and transcriptomics. The results in vivo and in vitro showed that PM2.5 reduced Sertoli cells number in seminiferous tubules and inhibited cell proliferation. PM2.5 exposure also induced Sertoli cell dysfunction by increasing androgen binding protein (ABP) concentration, reducing the blood-testis barrier (BTB)-related protein expression, and decreasing glycolysis capacity and lactate production. The results of transcriptomics, metabolomics, and integrative analysis of multi-omics in the TM4 Sertoli cells revealed the activation of xenobiotic metabolism, and the disturbance of glutathione and purine metabolism after PM2.5 exposure. Further tests verified the reduced GSH/GSSG ratio and the elevation of xanthine oxidase (XO) activity in the PM2.5-exposed TM4 cells, indicating that excessive reactive oxygen species (ROS) was generated via metabolic disorder caused by PM2.5. Moreover, the redox imbalance was proved by the increase in the mitochondrial ROS level, superoxide dismutase (SOD) and catalase (CAT) activity, as well as the activation of the Nrf2 antioxidative pathway. Further study found that the redox imbalance caused by PM2.5 induced DNA damage response and cell cycle arrest. Additionally, PM2.5 induced ferroptosis through iron overload and lipid peroxidation. Taken all together, our study provided new insights for understanding proliferation inhibition and dysfunction of TM4 Sertoli cells exposed to PM2.5 via metabolic disorder and redox imbalance-mediated DNA damage response and ferroptosis.
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Affiliation(s)
- Fuquan Shi
- Key Lab of Medical Protection for Electromagnetic Radiation, Ministry of Education of China, Institute of Toxicology, College of Preventive Medicine, Army Medical University (Third Military Medical University), Chongqing 400038, China
| | - Zhonghao Zhang
- Key Lab of Medical Protection for Electromagnetic Radiation, Ministry of Education of China, Institute of Toxicology, College of Preventive Medicine, Army Medical University (Third Military Medical University), Chongqing 400038, China
| | - Haonan Cui
- Key Lab of Medical Protection for Electromagnetic Radiation, Ministry of Education of China, Institute of Toxicology, College of Preventive Medicine, Army Medical University (Third Military Medical University), Chongqing 400038, China
| | - Jiankang Wang
- Key Lab of Medical Protection for Electromagnetic Radiation, Ministry of Education of China, Institute of Toxicology, College of Preventive Medicine, Army Medical University (Third Military Medical University), Chongqing 400038, China
| | - Yimeng Wang
- Key Lab of Medical Protection for Electromagnetic Radiation, Ministry of Education of China, Institute of Toxicology, College of Preventive Medicine, Army Medical University (Third Military Medical University), Chongqing 400038, China
| | - Ying Tang
- Institution of Health and Family Planning Supervision of Wei'yang District of Xi'an City, Xi'an 710016, China
| | - Wang Yang
- Key Lab of Medical Protection for Electromagnetic Radiation, Ministry of Education of China, Institute of Toxicology, College of Preventive Medicine, Army Medical University (Third Military Medical University), Chongqing 400038, China
| | - Peng Zou
- Key Lab of Medical Protection for Electromagnetic Radiation, Ministry of Education of China, Institute of Toxicology, College of Preventive Medicine, Army Medical University (Third Military Medical University), Chongqing 400038, China
| | - Xi Ling
- Key Lab of Medical Protection for Electromagnetic Radiation, Ministry of Education of China, Institute of Toxicology, College of Preventive Medicine, Army Medical University (Third Military Medical University), Chongqing 400038, China
| | - Fei Han
- Key Lab of Medical Protection for Electromagnetic Radiation, Ministry of Education of China, Institute of Toxicology, College of Preventive Medicine, Army Medical University (Third Military Medical University), Chongqing 400038, China
| | - Jinyi Liu
- Key Lab of Medical Protection for Electromagnetic Radiation, Ministry of Education of China, Institute of Toxicology, College of Preventive Medicine, Army Medical University (Third Military Medical University), Chongqing 400038, China
| | - Qing Chen
- Key Lab of Medical Protection for Electromagnetic Radiation, Ministry of Education of China, Institute of Toxicology, College of Preventive Medicine, Army Medical University (Third Military Medical University), Chongqing 400038, China
| | - Cuiqing Liu
- School of Basic Medical Sciences and Public Health, Joint China-US Research Center for Environment and Pulmonary Diseases, Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Jia Cao
- Key Lab of Medical Protection for Electromagnetic Radiation, Ministry of Education of China, Institute of Toxicology, College of Preventive Medicine, Army Medical University (Third Military Medical University), Chongqing 400038, China.
| | - Lin Ao
- Key Lab of Medical Protection for Electromagnetic Radiation, Ministry of Education of China, Institute of Toxicology, College of Preventive Medicine, Army Medical University (Third Military Medical University), Chongqing 400038, China.
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18
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Zhu L, Guan Y, Li X, Xiong X, Liu J, Wang Z. BPA disrupts the SC barrier integrity by activating the cytokines/JNK signaling pathway in rare minnow Gobiocypris rarus. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2022; 245:106124. [PMID: 35193009 DOI: 10.1016/j.aquatox.2022.106124] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Revised: 01/14/2022] [Accepted: 02/12/2022] [Indexed: 06/14/2023]
Abstract
Bisphenol-A (BPA) has been reported to disrupt blood-testis barrier (BTB) integrity in mammals. However, its effects on fish testis sertoli cell (SC) barrier and the underlying mechanisms have been largely unknown to date. To study the SC barrier toxicity induced by BPA, male rare minnows (Gobiocypris rarus) were exposed to 15 μg L - 1 BPA for 7, 14 and 21 d. Meanwhile, a 25 ng L-1 17α-ethynyl estradiol (EE2) group was set up as the positive control. Results showed that BPA induced immune response in the testes and decreased offspring hatching rate. The biotin tracer assay showed that BPA exposure destroyed the integrity of the testis SC barrier. In addition, BPA exposure decreased the expressions of occludin, ZO-1, CX43 and N-cadherin proteins. The transcripts of CX43 and occludin were significantly decreased and SP1 recruitment in each gene promoter was repressed after BPA exposure. Moreover, the cytokines (TNFα and IL-1β) were significantly increased while the JNK signal pathway was activated after BPA exposure. BPA also increased the matrix metalloproteinases 1 (MMP1) and MMP2 levels in the testes. In addition, estrogenic effect did not entirely explain the mechanism by which BPA disrupted the SC barrier in G. rarus testes. These results suggested that BPA disrupted the SC barrier integrity by inhibiting SP1 enrichments within CX43 and occludin 5' flanking regions through activated cytokines/JNK signaling pathway. MMPs were also involved in the disruption of SC barrier caused by BPA exposure.
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Affiliation(s)
- Long Zhu
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Yongjing Guan
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Xuening Li
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Xiaofan Xiong
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Jialin Liu
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Zaizhao Wang
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China.
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19
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Ren L, Jiang J, Huang J, Zang Y, Huang Q, Zhang L, Wei J, Lu H, Wu S, Zhou X. Maternal exposure to PM2.5 induces the testicular cell apoptosis in offspring triggered by the UPR-mediated JNK pathway. Toxicol Res (Camb) 2022; 11:226-234. [PMID: 35237427 PMCID: PMC8882805 DOI: 10.1093/toxres/tfab116] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Revised: 11/03/2021] [Indexed: 01/28/2023] Open
Abstract
Contemporary exposure to PM2.5 has been reported to disrupt spermatogenesis. However, the subsequent toxicological responses and the mechanisms of male reproductive damage in offspring induced by maternal exposure to PM2.5 remain largely unknown. For the first time, this study aimed to explore the apoptotic response in spermatogenesis of male offspring following maternal exposure to PM2.5 and its mechanisms. The C57BL/6 mice with vaginal plugs were randomly divided into four groups. Mice in the PM2.5 groups were intratracheally exposed to PM2.5 (4.8 mg/kg body weight, 43.2 mg/kg body weight) during pregnancy (every 3 days, six times in total). The mice in the membrane control group were treated similarly to the PM2.5 groups, applying only PM2.5 sampling membrane, while mice in the control group were kept untreated. The results showed that maternal exposure to PM2.5 during pregnancy resulted in structural lesions of the testis, reduced numbers of primary spermatocytes and spermatids, decreased sperm count and quality, shortened diameter of seminiferous tubules, and reduced testosterone and ABP in the offspring testes. Furthermore, cell apoptosis was increased and protein expression of IRE-1/P-JNK/cleaved caspase-12/cleaved caspase-3 was activated. These findings suggested that maternal exposure to PM2.5 may affect spermatogenesis by increasing apoptosis through activation of UPR-mediated JNK apoptotic pathway in offspring testicles and by reducing testosterone secretion.
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Affiliation(s)
- Lihua Ren
- School of Nursing, Peking University, Beijing 100191, China
| | - Jianjun Jiang
- Department of Toxicology, School of Public Health, Peking University, Beijing 100191, China
| | - Jing Huang
- School of Nursing, Peking University, Beijing 100191, China
| | - Yu Zang
- School of Nursing, Peking University, Beijing 100191, China
| | - Qifang Huang
- School of Nursing, Peking University, Beijing 100191, China
| | - Lianshuang Zhang
- Department of Histology and Embryology, BinZhou Medical University, Yan Tai 264003, China
| | - Jialiu Wei
- Department of Epidemiology, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - Hong Lu
- Correspondence address. Department of Maternal and Child Nursing, School of Nursing, Peking University, Beijing 100191, China. Tel: +86-10-82805277; E-mail:
| | - Shaowei Wu
- Department of Occupational and Environmental Health, School of Public Health, Xi'an Jiaotong University, Beijing 100191, China
| | - Xianqing Zhou
- Department of Toxicology and Hygienic Chemistry, School of Public Health, Capital Medical University, Beijing 100069, China
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20
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Zhou Q, Chen J, Zhang J, Zhou F, Zhao J, Wei X, Zheng K, Wu J, Li B, Pan B. Toxicity and endocrine-disrupting potential of PM 2.5: Association with particulate polycyclic aromatic hydrocarbons, phthalate esters, and heavy metals. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 292:118349. [PMID: 34653588 DOI: 10.1016/j.envpol.2021.118349] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2021] [Revised: 10/02/2021] [Accepted: 10/08/2021] [Indexed: 06/13/2023]
Abstract
The adverse effects of fine atmospheric particulate matter with aerodynamic diameters of ≤2.5 μm (PM2.5) are closely associated with particulate chemicals. In this study, PM2.5 samples were collected from highway and industry sites in Hangzhou, China, during the autumn and winter, and their cytotoxicity and pulmonary toxicity and endocrine-disrupting potential (EDP) were evaluated in vitro and in vivo; the particulate polycyclic aromatic hydrocarbons (PAHs), phthalate esters (PAEs), and heavy metals were then characterized. The toxicological results suggested that the PM2.5 from highway site induced higher cytotoxicity (cell viability inhibition, intracellular oxidative stress, and cell membrane injury) and pulmonary toxicity (inflammatory response (IR) and oxidative stress (OS)) than the samples from industry site, while the PM2.5 from industry site exhibited higher EDP (estrogenic and anti-androgenic activity). The cytotoxicity and pulmonary toxicity of PM2.5 in the winter were higher than those in the autumn, while no seasonal difference in the endocrine-disrupting potential was observed (p > 0.05). The Pearson correlation analysis between the biological effects and particulate chemicals revealed that the PM2.5-induced inflammatory response and oxidative stress were closely associated with the particulate PAHs and heavy metals (Pearson correlation coefficients: rIR, PAHs = 0.822-0.988, rIR, heavy metals = 0.895-0.971, rOS, PAHs = 0.843-0.986, and rOS, heavy metals = 0.887-0.933), while particulate di (2-ethylhexyl)phthalate (DEHP) substantially contributed to the EDP of PM2.5 (rEDP, DEHP = 0.981). This study indicated that the toxicity and EDP of PM2.5 could vary with the surrounding environment and season, which was closely associated with the variations of particulate chemicals. Further studies are needed to clarify the associations between the harmful effects of PM2.5 and other contributing factors.
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Affiliation(s)
- Qinghua Zhou
- College of Environment, Zhejiang University of Technology, Hangzhou, China
| | - Jinyuan Chen
- College of Environment, Zhejiang University of Technology, Hangzhou, China
| | - Junfan Zhang
- College of Environment, Zhejiang University of Technology, Hangzhou, China
| | - Feifei Zhou
- Departments of TCM Gynecology, Women's Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Jingjing Zhao
- College of Environment, Zhejiang University of Technology, Hangzhou, China
| | - Xiuzhen Wei
- College of Environment, Zhejiang University of Technology, Hangzhou, China
| | - Kaiyun Zheng
- College of Environment, Zhejiang University of Technology, Hangzhou, China
| | - Jian Wu
- Ecology and Environmental Science Research & Design Institute of Zhejiang Province, Hangzhou, China
| | - Bingjie Li
- College of Environment, Zhejiang University of Technology, Hangzhou, China
| | - Bingjun Pan
- College of Environment, Zhejiang University of Technology, Hangzhou, China.
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21
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Madhu NR, Sarkar B, Slama P, Jha NK, Ghorai SK, Jana SK, Govindasamy K, Massanyi P, Lukac N, Kumar D, Kalita JC, Kesari KK, Roychoudhury S. Effect of Environmental Stressors, Xenobiotics, and Oxidative Stress on Male Reproductive and Sexual Health. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2022; 1391:33-58. [PMID: 36472815 DOI: 10.1007/978-3-031-12966-7_3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
This article examines the environmental factor-induced oxidative stress (OS) and their effects on male reproductive and sexual health. There are several factors that induce OS, i.e. radition, metal contamination, xenobiotic compounds, and cigarette smoke and lead to cause toxicity in the cells through metabolic or bioenergetic processes. These environmental factors may produce free radicals and enhance the reactive oxygen species (ROS). Free radicals are molecules that include oxygen and disbalance the amount of electrons that can create major chemical chains in the body and cause oxidation. Oxidative damage to cells may impair male fertility and lead to abnormal embryonic development. Moreover, it does not only cause a vast number of health issues such as ageing, cancer, atherosclerosis, insulin resistance, diabetes mellitus, cardiovascular diseases, ischemia-reperfusion injury, and neurodegenerative disorders but also decreases the motility of spermatozoa while increasing sperm DNA damage, impairing sperm mitochondrial membrane lipids and protein kinases. This chapter mainly focuses on the environmental stressors with further discussion on the mechanisms causing congenital impairments due to poor sexual health and transmitting altered signal transduction pathways in male gonadal tissues.
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Affiliation(s)
- Nithar Ranjan Madhu
- Department of Zoology, Acharya Prafulla Chandra College, New Barrackpore, Kolkata, West Bengal, India
| | - Bhanumati Sarkar
- Department of Botany, Acharya Prafulla Chandra College, New Barrackpore, Kolkata, West Bengal, India
| | - Petr Slama
- Department of Animal Morphology, Physiology and Genetics, Faculty of AgriSciences, Mendel University in Brno, Brno, Czech Republic
| | - Niraj Kumar Jha
- Department of Biotechnology, School of Engineering & Technology (SET), Sharda University, Greater Noida, India
| | | | - Sandip Kumar Jana
- Department of Zoology, Bajkul Milani Mahavidyalaya, Purba Medinipur, West Bengal, India
| | - Kadirvel Govindasamy
- Animal Production Division, ICAR Research Complex for NEH Region, Indian Council of Agricultural Research, Umiam, Meghalaya, India
| | - Peter Massanyi
- Department of Animal Physiology, Faculty of Biotechnology and Food Sciences, Slovak University of Agriculture in Nitra, Nitra, Slovak Republic
| | - Norbert Lukac
- Department of Animal Physiology, Faculty of Biotechnology and Food Sciences, Slovak University of Agriculture in Nitra, Nitra, Slovak Republic
| | - Dhruv Kumar
- School of Health Sciences & Technology, UPES University, Dehradun, Uttarakhand, India
| | - Jogen C Kalita
- Department of Zoology, Gauhati University, Guwahati, India
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22
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Chen HG, Lu Q, Tu ZZ, Chen YJ, Sun B, Hou J, Xiong CL, Wang YX, Meng TQ, Pan A. Identifying windows of susceptibility to essential elements for semen quality among 1428 healthy men screened as potential sperm donors. ENVIRONMENT INTERNATIONAL 2021; 155:106586. [PMID: 33910075 DOI: 10.1016/j.envint.2021.106586] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Revised: 04/13/2021] [Accepted: 04/14/2021] [Indexed: 06/12/2023]
Abstract
BACKGROUND Essential elements such as iron (Fe), cobalt (Co), copper (Cu), zinc (Zn), selenium (Se), rubidium (Rb), strontium (Sr), and molybdenum (Mo) are necessary for reproductive health. However, their associations with human semen quality remain inconclusive. OBJECTIVES To investigate the associations of urinary Fe, Co, Cu, Zn, Se, Rb, Sr, and Mo concentrations with semen quality in healthy men screened as potential sperm donors and identify critical windows of susceptibility. METHODS 1428 healthy men provided 3766 urine and 6527 semen samples, which were measured for urinary essential element concentrations and sperm quality parameters, respectively. Linear mixed models and cubic spline curves were used to evaluate associations between urinary essential elements and semen quality. Multiple informant models were used to identify potential critical windows of susceptibility. RESULTS Linear mixed models and cubic spline curves showed positive dose-response relationships between urinary Zn and sperm concentration and total count and between urinary Mo and total sperm count [all False Discovery Rate (FDR) adjusted p-value for trend < 0.05]. In the multiple-element linear mixed models, the men in the highest versus lowest quartiles of urinary Zn and Mo had a higher sperm concentration of 17.5% (95% CI: 2.8%, 34.2%; p-value for trend = 0.006) and total sperm count of 18.3% (95% CI: 1.4%, 38.0%; p-value for trend = 0.027), respectively. Urinary Zn was also positively associated with total sperm count in a dose-dependent manner (p-value for trend = 0.036), though the percentile difference in total sperm count between men in the highest and lowest quartile was not statistically significant (16.4%, 95% CI: -1.7%, 37.9%). These associations appeared to be stronger when urinary Zn and Mo were measured at 0-9 days before the date of semen examination (i.e., corresponding to epididymal storage). CONCLUSIONS Higher urinary Zn and Mo, particularly during the period of epididymal storage, were associated with greater sperm production.
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Affiliation(s)
- Heng-Gui Chen
- Department of Epidemiology and Biostatistics, Ministry of Education Key Laboratory of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, No. 13 Hangkong Rd, Wuhan 430030, Hubei Province, China
| | - Qi Lu
- Department of Epidemiology and Biostatistics, Ministry of Education Key Laboratory of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, No. 13 Hangkong Rd, Wuhan 430030, Hubei Province, China
| | - Zhou-Zheng Tu
- Department of Epidemiology and Biostatistics, Ministry of Education Key Laboratory of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, No. 13 Hangkong Rd, Wuhan 430030, Hubei Province, China
| | - Ying-Jun Chen
- Department of Epidemiology and Biostatistics, Ministry of Education Key Laboratory of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, No. 13 Hangkong Rd, Wuhan 430030, Hubei Province, China
| | - Bin Sun
- Department of Epidemiology and Biostatistics, Ministry of Education Key Laboratory of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, No. 13 Hangkong Rd, Wuhan 430030, Hubei Province, China
| | - Jian Hou
- Department of Epidemiology and Biostatistics, School of Public Health, Zhengzhou University, Zhengzhou, Henan Province, China
| | - Cheng-Liang Xiong
- Center for Reproductive Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, China; Hubei Province Human Sperm Bank, Wuhan, Hubei Province, China
| | - Yi-Xin Wang
- Department of Epidemiology and Biostatistics, Ministry of Education Key Laboratory of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, No. 13 Hangkong Rd, Wuhan 430030, Hubei Province, China.
| | - Tian-Qing Meng
- Center for Reproductive Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, China; Hubei Province Human Sperm Bank, Wuhan, Hubei Province, China.
| | - An Pan
- Department of Epidemiology and Biostatistics, Ministry of Education Key Laboratory of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, No. 13 Hangkong Rd, Wuhan 430030, Hubei Province, China.
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23
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Al-Kuraishy HM, Al-Gareeb AI, Faidah H, Alexiou A, Batiha GES. Testosterone in COVID-19: An Adversary Bane or Comrade Boon. Front Cell Infect Microbiol 2021; 11:666987. [PMID: 34568081 PMCID: PMC8455954 DOI: 10.3389/fcimb.2021.666987] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Accepted: 08/16/2021] [Indexed: 12/17/2022] Open
Abstract
COVID-19 is a pandemic disease caused by severe acute respiratory coronavirus 2 (SARS-CoV-2), which leads to pulmonary manifestations like acute lung injury (ALI) and acute respiratory distress syndrome (ARDS). In addition, COVID-19 may cause extra-pulmonary manifestation such as testicular injury. Both high and low levels of testosterone could affect the severity of COVID-19. Herein, there is substantial controversy regarding the potential role of testosterone in SARS-CoV-2 infection and COVID-19 severity. Therefore, the present study aimed to review and elucidate the assorted view of preponderance regarding the beneficial and harmful effects of testosterone in COVID-19. A related literature search in PubMed, Scopus, Web of Science, Google Scholar, and Science Direct was done. All published articles related to the role of testosterone and COVID-19 were included in this mini-review. The beneficial effects of testosterone in COVID-19 are through inhibition of pro-inflammatory cytokines, augmentation of anti-inflammatory cytokines, modulation of the immune response, attenuation of oxidative stress, and endothelial dysfunction. However, its harmful effects in COVID-19 are due to augmentation of transmembrane protease serine 2 (TMPRSS2), which is essential for cleaving and activating SARS-CoV-2 spike protein during acute SARS-CoV-2 infection. Most published studies illustrated that low testosterone levels are linked to COVID-19 severity. A low testosterone level in COVID-19 is mainly due to testicular injury, the primary source of testosterone.
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Affiliation(s)
- Hayder M Al-Kuraishy
- Department of Clinical Pharmacology and Medicine, College of Medicine, ALmustansiriyia University, Baghdad, Iraq
| | - Ali I Al-Gareeb
- Department of Clinical Pharmacology and Medicine, College of Medicine, ALmustansiriyia University, Baghdad, Iraq
| | - Hani Faidah
- Faculty of Medicine, Umm Al Qura University, Mecca, Saudi Arabia
| | - Athanasios Alexiou
- Department of Science and Engineering, Novel Global Community Educational Foundation, Hebersham, NSW, Australia.,AFNP Med Austria, Wien, Austria
| | - Gaber El-Saber Batiha
- Department of Pharmacology and Therapeutics, Faculty of Veterinary Medicine, Damanhour University, Damanhour, Egypt
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24
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Li S, Wang Q, Yu H, Yang L, Sun Y, Xu N, Wang N, Lei Z, Hou J, Jin Y, Zhang H, Li L, Xu F, Zhang L. Polystyrene microplastics induce blood-testis barrier disruption regulated by the MAPK-Nrf2 signaling pathway in rats. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:47921-47931. [PMID: 33895957 DOI: 10.1007/s11356-021-13911-9] [Citation(s) in RCA: 62] [Impact Index Per Article: 20.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Accepted: 04/08/2021] [Indexed: 06/12/2023]
Abstract
As a persistent pollutant, microplastics (MPs) have been reported to induce sperm quantity decrease in mice. However, the related mechanism remains obscure. Therefore, this study is intended to explore the effects of polystyrene microplastics (PS-MPs) on male reproduction and its related mechanism of blood-testis barrier (BTB) impairment. Thirty-two adult male Wistar rats were divided randomly into four groups fed with PS-MPs for 90 days at doses of 0 mg/day (control group), 0.015 mg/day, 0.15 mg/day, and 1.5 mg/day, respectively. The present results have shown that PS-MP exposure led to the damage of seminiferous tubule, resulted in apoptosis of spermatogenic cells, and decreased the motility and concentration of sperm, while the abnormality of sperm was elevated. Meanwhile, PS-MPs could induce oxidative stress and activate the p38 MAPK pathway and thus deplete the nuclear factor erythroid-2 related factor 2 (Nrf2). Noteworthily, PS-MPs led to the BTB-related protein expression decrease. All these results demonstrated that PS-MP exposure may lead to the destruction of BTB integrity and the apoptosis of spermatogenic cells through the activation of the MAPK-Nrf2 pathway. The current study provided novelty evidence for elucidating the effects of PS-MPs on male reproductive toxicity and its potential mechanism.
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Affiliation(s)
- Shengda Li
- College of Clinical Medicine, Binzhou Medical University, Yan Tai, People's Republic of China
| | - Qimeng Wang
- College of Clinical Medicine, Binzhou Medical University, Yan Tai, People's Republic of China
| | - Hui Yu
- College of Basic Medicine & Xu Rongxiang Regenerative Medicine Research Center, Binzhou Medical University, Yantai, People's Republic of China
| | - Long Yang
- College of Clinical Medicine, Binzhou Medical University, Yan Tai, People's Republic of China
| | - Yiqing Sun
- College of Clinical Medicine, Binzhou Medical University, Yan Tai, People's Republic of China
| | - Ning Xu
- College of Clinical Medicine, Binzhou Medical University, Yan Tai, People's Republic of China
| | - Nana Wang
- College of Clinical Medicine, Binzhou Medical University, Yan Tai, People's Republic of China
| | - Zhimin Lei
- College of Clinical Medicine, Binzhou Medical University, Yan Tai, People's Republic of China
| | - Junyu Hou
- College of Clinical Medicine, Binzhou Medical University, Yan Tai, People's Republic of China
| | - Yinchuan Jin
- Department of Medical Psychology, Fourth Military Medical University, No. 169 West Changle Road, Xi'an, People's Republic of China.
| | - Hongqin Zhang
- College of Basic Medicine & Xu Rongxiang Regenerative Medicine Research Center, Binzhou Medical University, Yantai, People's Republic of China
- Department of Histology and Embryology, Binzhou Medical University, Yantai, People's Republic of China
| | - Lianqin Li
- Department of Obstetrics and Gynecology, Yantai Affiliated Hospital of Binzhou Medical University, Yantai, China
| | - Feibo Xu
- College of Basic Medicine & Xu Rongxiang Regenerative Medicine Research Center, Binzhou Medical University, Yantai, People's Republic of China
- Department of Histology and Embryology, Binzhou Medical University, Yantai, People's Republic of China
| | - Lianshuang Zhang
- College of Basic Medicine & Xu Rongxiang Regenerative Medicine Research Center, Binzhou Medical University, Yantai, People's Republic of China.
- Department of Histology and Embryology, Binzhou Medical University, Yantai, People's Republic of China.
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25
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circBTBD7 Promotes Immature Porcine Sertoli Cell Growth through Modulating miR-24-3p/ MAPK7 Axis to Inactivate p38 MAPK Signaling Pathway. Int J Mol Sci 2021; 22:ijms22179385. [PMID: 34502294 PMCID: PMC8431111 DOI: 10.3390/ijms22179385] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Revised: 08/23/2021] [Accepted: 08/27/2021] [Indexed: 12/12/2022] Open
Abstract
Sertoli cells are the crucial coordinators to guarantee normal spermatogenesis and male fertility. Although circular RNAs (circRNAs) exhibit developmental-stage-specific expression in porcine testicular tissues and have been thought of as potential regulatory molecules in spermatogenesis, their functions and mechanisms of action remain largely unknown, especially in domestic animals. A novel circBTBD7 was identified from immature porcine Sertoli cells using reverse transcription PCR, Sanger sequencing, and fluorescence in situ hybridization assays. Functional assays illustrated that circBTBD7 overexpression promoted cell cycle progression and cell proliferation, as well as inhibited cell apoptosis in immature porcine Sertoli cells. Mechanistically, circBTBD7 acted as a sponge for the miR-24-3p and further facilitated its target mitogen-activated protein kinase 7 (MAPK7) gene. Overexpression of miR-24-3p impeded cell proliferation and induced cell apoptosis, which further attenuated the effects of circBTBD7 overexpression. siRNA-induced MAPK7 deficiency resulted in a similar effect to miR-24-3p overexpression, and further offset the effects of miR-24-3p inhibition. Both miR-24-3p overexpression and MAPK7 knockdown upregulated the p38 phosphorylation activity. The SB202190 induced the inhibition of p38 MAPK pathway and caused an opposite effect to that of miR-24-3p overexpression and MAPK7 knockdown. Collectively, circBTBD7 promotes immature porcine Sertoli cell growth through modulating the miR-24-3p/MAPK7 axis to inactivate the p38 MAPK signaling pathway. This study expanded our knowledge of noncoding RNAs in porcine normal spermatogenesis through deciding the fate of Sertoli cells.
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26
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Lin CY, Chen WL, Chen TZ, Lee SH, Liang HJ, Chou CCK, Tang CH, Cheng TJ. Lipid changes in extrapulmonary organs and serum of rats after chronic exposure to ambient fine particulate matter. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 784:147018. [PMID: 34088028 DOI: 10.1016/j.scitotenv.2021.147018] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Revised: 03/12/2021] [Accepted: 04/04/2021] [Indexed: 06/12/2023]
Abstract
Fine particulate matter (PM2.5) is able to pass through the respiratory barrier to enter the circulatory system and can consequently spread to the whole body to cause toxicity. Although our previous studies have revealed significantly altered levels of phosphorylcholine-containing lipids in the lungs of rats after chronic inhalation exposure to PM2.5, the effects of PM2.5 on phosphorylcholine-containing lipids in the extrapulmonary organs have not yet been elucidated. In this study, we examined the lipid effects of chronic PM2.5 exposure on various organs and serum by using a rat inhalation model followed by a mass spectrometry-based lipidomic approach. Male Sprague-Dawley rats were continuously exposed at the whole body level to nonfiltered and nonconcentrated ambient air from the outside environment of Taipei city for 8 months, while the control rats inhaled filtered air simultaneously. After exposure, serum samples and various organs, including the testis, pancreas, heart, liver, kidney, spleen, and epididymis, were collected for lipid extraction and analysis to examine the changes in phosphorylcholine-containing lipids after exposure. The results from the partial least squares discriminant analysis models demonstrated that the lipid profiles in the PM2.5 exposure group were different from those in the control group in the rat testis, pancreas, heart, liver, kidney and serum. The greatest PM2.5-induced lipid effects were observed in the testes. Decreased lyso-phosphatidylcholines (PCs) as well as increased unsaturated diacyl-PCs and sphingomyelins in the testes may be related to maintaining the membrane integrity of spermatozoa, antioxidation, and cell signaling. Additionally, our results showed that decreased PC(16:0/18:1) was observed in both the serum and testes. In conclusion, exposure to chronic environmental concentrations of PM2.5 caused lipid perturbation, especially in the testes of rats. This study highlighted the susceptibility of the testes and suggested possible molecular events for future study.
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Affiliation(s)
- Ching-Yu Lin
- Institute of Environmental and Occupational Health Sciences, College of Public Health, National Taiwan University, Taipei, Taiwan; Department of Public Health, College of Public Health, National Taiwan University, Taipei, Taiwan.
| | - Wen-Ling Chen
- Department of Public Health, College of Public Health, National Taiwan University, Taipei, Taiwan; Institute of Food Safety and Health, College of Public Health, National Taiwan University, Taipei, Taiwan
| | - Ting-Zhen Chen
- Institute of Environmental and Occupational Health Sciences, College of Public Health, National Taiwan University, Taipei, Taiwan
| | - Sheng-Han Lee
- Institute of Environmental and Occupational Health Sciences, College of Public Health, National Taiwan University, Taipei, Taiwan
| | - Hao-Jan Liang
- Institute of Environmental and Occupational Health Sciences, College of Public Health, National Taiwan University, Taipei, Taiwan
| | - Charles C-K Chou
- Research Center for Environmental Changes, Academia Sinica, Taipei, Taiwan
| | - Chuan-Ho Tang
- National Museum of Marine Biology and Aquarium, Pingtung, Taiwan; Institute of Marine Biology, National Dong Hwa University, Pingtung, Taiwan
| | - Tsun-Jen Cheng
- Institute of Environmental and Occupational Health Sciences, College of Public Health, National Taiwan University, Taipei, Taiwan; Department of Public Health, College of Public Health, National Taiwan University, Taipei, Taiwan
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27
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Lu T, Ling C, Hu M, Meng X, Deng Y, An H, Li L, Hu Y, Wang H, Song G, Guo S. Effect of Nano-Titanium Dioxide on Blood-Testis Barrier and MAPK Signaling Pathway in Male Mice. Biol Trace Elem Res 2021; 199:2961-2971. [PMID: 32990870 DOI: 10.1007/s12011-020-02404-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Accepted: 09/20/2020] [Indexed: 01/09/2023]
Abstract
Some studies have found that nano-sized titanium dioxide (nano-TiO2) has adverse effects on the male reproductive system. Blood-testis barrier (BTB), as one of the tightest blood-tissue restriction, is crucial to the male reproductive system. However, the potential effects on BTB and signaling pathway changes in testis tissue induced by nano-TiO2 remain poorly understood. Therefore, in this study, 60 Institute of Cancer Research mice were divided randomly into four groups (per group = 15). The mice of four groups were intragastrically administered with 0, 10, 50, and 100 mg/kg BW nano-TiO2 respectively for 30 days to analyze the changes of BTB structure, BTB-related proteins, and MAPK signal pathways. Besides, testosterone level, estradiol level, and sperm parameter (sperm count, sperm motility, and sperm malformation rate) changes were also studied in this research. The results indicated that nano-TiO2 could induce the BTB structural damage and accompanied by the BTB main protein (ZO-1, Claudin-11, and F-actin) elevation of irritability. Nano-TiO2 could also activate the MAPK signaling pathways (p38, JNK, and ERK) of mice testis tissue. The testosterone and estradiol levels in serum reduced. Besides when the mice were administered with nano-TiO2, we also found the sperm motility rate decreased, and sperm malformation increased. The above changes may be associated with BTB damage and the activation of MAPK signaling pathways, thereby causing male reproductive dysfunction.
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Affiliation(s)
- Tianjiao Lu
- Department of Public Health, School of Medicine, Shihezi University, Shihezi, Xinjiang, 832002, China
| | - Chunmei Ling
- Department of Public Health, School of Medicine, Shihezi University, Shihezi, Xinjiang, 832002, China
| | - Mingjuan Hu
- Department of Public Health, School of Medicine, Shihezi University, Shihezi, Xinjiang, 832002, China
| | - Xiaojia Meng
- Department of Public Health, School of Medicine, Shihezi University, Shihezi, Xinjiang, 832002, China
| | - Yaxin Deng
- Department of Public Health, School of Medicine, Shihezi University, Shihezi, Xinjiang, 832002, China
| | - Hongmei An
- Department of Public Health, School of Medicine, Shihezi University, Shihezi, Xinjiang, 832002, China
| | - Li Li
- Department of Public Health, School of Medicine, Shihezi University, Shihezi, Xinjiang, 832002, China
| | - Yunhua Hu
- Department of Public Health, School of Medicine, Shihezi University, Shihezi, Xinjiang, 832002, China
| | - Haixia Wang
- Department of Public Health, School of Medicine, Shihezi University, Shihezi, Xinjiang, 832002, China
| | - Guanling Song
- Department of Public Health, School of Medicine, Shihezi University, Shihezi, Xinjiang, 832002, China.
| | - Shuxia Guo
- Department of Public Health, School of Medicine, Shihezi University, Shihezi, Xinjiang, 832002, China.
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28
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Wei D, Li S, Liu X, Zhang L, Liu P, Fan K, Nie L, Wang L, Liu X, Hou J, Huo W, Yu S, Li L, Jing T, Li X, Li W, Guo Y, Wang C, Mao Z. Long-term exposure to particulate matter and residential greenness in relation to androgen and progesterone levels among rural Chinese adults. ENVIRONMENT INTERNATIONAL 2021; 153:106483. [PMID: 33962270 DOI: 10.1016/j.envint.2021.106483] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Revised: 02/05/2021] [Accepted: 02/22/2021] [Indexed: 06/12/2023]
Abstract
BACKGROUND Population-based studies on the associations of long-term exposure to particulate matter (PM) with androgen and progesterone are still scant. Residential greenness is benefits health by promoting physical activity, reducing air pollution, and improving mental health, but it remains unclear whether it is related to androgen and progesterone levels among humans. AIMS This study aimed to explore the individual and interactive effects of PM and residential greenness on serum testosterone and progesterone levels among rural Chinese adults. METHODS A total of 6017 subjects were recruited from the baseline of the Henan Rural Cohort Study in 2016. Serum testosterone and progesterone were measured with liquid chromatography-tandem mass spectrometry. Particulate matters (PM) (PM1, PM2.5, and PM10) were assessed by machine learning algorithms. Residential greenness was assessed using the normalized difference vegetation index (NDVI) within 500-m, 1000-m, and 3000-m buffers around participants' residences. The effects of air pollutants and residential greenness and their interaction on serum testosterone and progesterone levels were assessed using linear mixed-effects models with township as a random intercept. RESULTS After adjusting for potential confounding factors, a 1 μg/m3 increase in PM2.5 or PM10 was associated with a 0.037 or 0.030 ng/ml increase in serum testosterone, respectively, in females and with a 0.111 or 0.182 ng/ml decrease in serum progesterone, respectively, in males. A 1 μg/m3 increase in PM1, PM2.5 or PM10 was associated with a 0.222, 0.306, or 0.295 ng/ml decrease in serum progesterone, respectively, among females. Moreover, a 0.1-unit increase in NDVI was associated with a 0.310 ng/ml increase in serum testosterone and a 0.170 ng/ml increased in serum progesterone in males, as well as with a 0.143 ng/ml increase in serum progesterone in females. Interaction effects of PM and residential greenness on serum testosterone and progesterone levels were observed, indicating that the effects of residential greenness on serum testosterone and progesterone were modified by high levels of PM. In addition, physical activity significantly mediated 2.92% of the estimated association between greenness and testosterone levels. CONCLUSIONS Our study suggested that long-term exposure to PM was positively associated with serum testosterone in males but negatively associated with progesterone levels in both genderssin. In addition, positive associations of residential greenness with serum testosterone and progesterone levels were observed, but they were modified by high levels of PM. Furthermore, the estimated effects of residential greenness on testosterone levels were partly mediated by physical activity.
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Affiliation(s)
- Dandan Wei
- Department of Epidemiology and Biostatistics, College of Public Health, Zhengzhou University, Zhengzhou, Henan, PR China
| | - Shanshan Li
- Department of Epidemiology and Preventive Medicine, School of Public Health and Preventive Medicine, Monash University, Melbourne, Australia
| | - Xue Liu
- Department of Epidemiology and Biostatistics, College of Public Health, Zhengzhou University, Zhengzhou, Henan, PR China
| | - Li Zhang
- Department of Epidemiology and Biostatistics, College of Public Health, Zhengzhou University, Zhengzhou, Henan, PR China
| | - Pengling Liu
- Department of Epidemiology and Biostatistics, College of Public Health, Zhengzhou University, Zhengzhou, Henan, PR China
| | - Keliang Fan
- Department of Epidemiology and Biostatistics, College of Public Health, Zhengzhou University, Zhengzhou, Henan, PR China
| | - Luting Nie
- Department of Occupational and Environmental Health Sciences, College of Public Health, Zhengzhou University, Zhengzhou, Henan, PR China
| | - Lulu Wang
- Department of Epidemiology and Biostatistics, College of Public Health, Zhengzhou University, Zhengzhou, Henan, PR China
| | - Xiaotian Liu
- Department of Epidemiology and Biostatistics, College of Public Health, Zhengzhou University, Zhengzhou, Henan, PR China
| | - Jian Hou
- Department of Epidemiology and Biostatistics, College of Public Health, Zhengzhou University, Zhengzhou, Henan, PR China
| | - Wenqian Huo
- Department of Occupational and Environmental Health Sciences, College of Public Health, Zhengzhou University, Zhengzhou, Henan, PR China
| | - Songcheng Yu
- Department of Nutrition and Food Hygiene, College of Public Health, Zhengzhou University, Zhengzhou, Henan, PR China
| | - Linlin Li
- Department of Epidemiology and Biostatistics, College of Public Health, Zhengzhou University, Zhengzhou, Henan, PR China
| | - Tao Jing
- School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, PR China
| | - Xing Li
- Department of Nutrition and Food Hygiene, College of Public Health, Zhengzhou University, Zhengzhou, Henan, PR China
| | - Wenjie Li
- Department of Nutrition and Food Hygiene, College of Public Health, Zhengzhou University, Zhengzhou, Henan, PR China
| | - Yuming Guo
- Department of Epidemiology and Preventive Medicine, School of Public Health and Preventive Medicine, Monash University, Melbourne, Australia
| | - Chongjian Wang
- Department of Epidemiology and Biostatistics, College of Public Health, Zhengzhou University, Zhengzhou, Henan, PR China
| | - Zhenxing Mao
- Department of Epidemiology and Biostatistics, College of Public Health, Zhengzhou University, Zhengzhou, Henan, PR China.
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Montano L, Donato F, Bianco PM, Lettieri G, Guglielmino A, Motta O, Bonapace IM, Piscopo M. Air Pollution and COVID-19: A Possible Dangerous Synergy for Male Fertility. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph18136846. [PMID: 34202243 PMCID: PMC8297116 DOI: 10.3390/ijerph18136846] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Revised: 06/18/2021] [Accepted: 06/21/2021] [Indexed: 12/11/2022]
Abstract
Several studies indicate that semen quality has strongly declined in the last decades worldwide. Air pollution represents a significant co-factor with the COVID-19 impact and has negative effects on the male reproductive system, through pro-oxidant, inflammatory and immune-dysregulating mechanisms. It has recently been reported that chronic exposure to PM2.5 causes overexpression of the alveolar ACE2 receptor, the entry route of SARS-CoV-2 into the organism shared by the lungs and testis where expression is highest in the body. In the testis, the ACE2/Ang-(1-7)/MasR pathway plays an important role in the regulation of spermatogenesis and an indirect mechanism of testicular damage could be due to the blockade of the ACE2 receptor by SARS-CoV-2. This prevents the conversion of specific angiotensins, and their excess causes inflammation with the overproduction of cytokines. PM2.5-induced overexpression of the alveolar ACE2 receptor, in turn, could increase local viral load in patients exposed to pollutants, producing ACE2 receptor depletion and compromising host defenses. By presenting an overall view of epidemiological data and molecular mechanisms, this manuscript aims to interpret the possible synergistic effects of both air pollution and COVID-19 on male reproductive function, warning that the spread of SARS-CoV-2 in the fertile years may represent a significant threat to global reproductive health. All of this should be of great concern, especially for men of the age of maximum reproductive capacity, and an important topic of debate for policy makers. Altered environmental conditions, together with the direct and indirect short- and long-term effects of viral infection could cause a worsening of semen quality with important consequences for male fertility, especially in those areas with higher environmental impact.
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Affiliation(s)
- Luigi Montano
- Andrology Unit and Service of Lifestyle Medicine in UroAndrology, Local Health Authority (ASL) Salerno, Coordination Unit of the Network for Environmental and Reproductive Health (EcoFoodFertility Project), “Oliveto Citra Hospital”, 84020 Oliveto Citra, Italy
- PhD Program in Evolutionary Biology and Ecology, Department of Biology, University of Rome Tor Vergata, 00133 Rome, Italy
- Correspondence: (L.M.); (I.M.B.); (M.P.); Tel.: +39-0331-339452 (I.M.B.); +39-0816-79081 (M.P.)
| | - Francesco Donato
- Unit of Hygiene, Epidemiology, and Public Health, Department of Medical and Surgical Specialties Radiological Sciences and Public Health, University of Brescia, 21100 Brescia, Italy;
| | - Pietro Massimiliano Bianco
- ISPRA, Italian Institute for Environmental Protection and Research, Via Vitaliano Brancati 60, 00144 Roma, Italy;
| | - Gennaro Lettieri
- Department of Biology, University of Naples Federico II, 80126 Napoli, Italy;
| | | | - Oriana Motta
- Department of Medicine, Surgery and Dentistry, University of Salerno, 84081 Salerno, Italy;
| | - Ian Marc Bonapace
- Department of Biotechnology and Life Sciences, University of Insubria, 21100 Varese, Italy
- Correspondence: (L.M.); (I.M.B.); (M.P.); Tel.: +39-0331-339452 (I.M.B.); +39-0816-79081 (M.P.)
| | - Marina Piscopo
- Department of Biology, University of Naples Federico II, 80126 Napoli, Italy;
- Correspondence: (L.M.); (I.M.B.); (M.P.); Tel.: +39-0331-339452 (I.M.B.); +39-0816-79081 (M.P.)
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The role of different compounds on the integrity of blood-testis barrier: A concise review based on in vitro and in vivo studies. Gene 2021; 780:145531. [PMID: 33631249 DOI: 10.1016/j.gene.2021.145531] [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: 07/01/2020] [Revised: 02/03/2021] [Accepted: 02/09/2021] [Indexed: 12/12/2022]
Abstract
Sertoli cells are "nurturing cells'' in the seminiferous tubules of the testis which have essential roles in the development, proliferation and differentiation of germ cells. These cells also divide the seminiferous epithelium into a basal and an adluminal compartment and establish the blood-testis barrier (BTB). BTB shields haploid germ cells from recognition by the innate immune system. Moreover, after translocation of germ cells into the adluminal compartment their nutritional source is separated from the circulatory system being only supplied by the Sertoli cells. The integrity of BTB is influenced by several organic/ organometallic, hormonal and inflammatory substances. Moreover, several environmental contaminants such as BPA have hazardous effects on the integrity of BTB. In the current review, we summarize the results of studies that assessed the impact of these agents on the integrity of BTB. These studies have implications in understanding the molecular mechanism of male infertility and also in the male contraception.
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Wang L, Luo D, Liu X, Zhu J, Wang F, Li B, Li L. Effects of PM 2.5 exposure on reproductive system and its mechanisms. CHEMOSPHERE 2021; 264:128436. [PMID: 33032215 DOI: 10.1016/j.chemosphere.2020.128436] [Citation(s) in RCA: 51] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Revised: 08/27/2020] [Accepted: 09/24/2020] [Indexed: 06/11/2023]
Abstract
With the development of human society, haze has become an important form of air pollution. Haze is a mixture of fog and haze, and the main component of haze is fine particulate matter (PM2.5), which is the most important indicator of composite air pollution. Epidemiological studies proved that PM2.5 can break through the respiratory mucosal barrier and enter the human body, causing pathological effects on multiple systems of the body. In the past, people put more attention to PM2.5 in the respiratory system, cardiovascular system, nervous system, etc, and relatively paid less attention to the reproductive system. Recent studies have shown that PM2.5 will accumulate in the reproductive organs through blood-testis barrier, placental barrier, epithelial barrier and other barriers protecting reproductive tissues. In addition, PM2.5 can disrupt hormone levels, ultimately affecting fertility. Prior studies have shown that oxidative stress, inflammation, apoptosis, and the breakdown of barrier structures are now considered to contribute to reproductive toxicity and may cause damage at the molecular and genetic levels. However, the exact mechanism remains to be elucidated. Our review aims to provide an understanding of the pathological effects of PM2.5 on reproductive system and the existing injury mechanism.
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Affiliation(s)
- Lingjuan Wang
- Tianjin Medical University General Hospital, Tianjin, 300211, China; Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Dan Luo
- Department of Cardiovascular Surgery, The 940th Hospital of Joint Logistics Support Force of People's Liberation Army, Lanzhou, 730000, China
| | - Xiaolong Liu
- Tianjin Medical University General Hospital, Tianjin, 300211, China
| | - Jianqiang Zhu
- Department of Urology, Tianjin Institute of Urology, The Second Hospital, Tianjin Medical University, Tianjin, 300211, China
| | - Fengli Wang
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China.
| | - Bin Li
- Tianjin Medical University General Hospital, Tianjin, 300211, China; State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; Department of Urology, Tianjin Institute of Urology, The Second Hospital, Tianjin Medical University, Tianjin, 300211, China.
| | - Liming Li
- Tianjin Medical University General Hospital, Tianjin, 300211, China
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Shi F, Zhang Z, Wang J, Wang Y, Deng J, Zeng Y, Zou P, Ling X, Han F, Liu J, Ao L, Cao J. Analysis by Metabolomics and Transcriptomics for the Energy Metabolism Disorder and the Aryl Hydrocarbon Receptor Activation in Male Reproduction of Mice and GC-2spd Cells Exposed to PM 2.5. Front Endocrinol (Lausanne) 2021; 12:807374. [PMID: 35046903 PMCID: PMC8761788 DOI: 10.3389/fendo.2021.807374] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Accepted: 12/08/2021] [Indexed: 11/13/2022] Open
Abstract
Fine particulate matter (PM2.5)-induced male reproductive toxicity arouses global public health concerns. However, the mechanisms of toxicity remain unclear. This study aimed to further investigate toxicity pathways by exposure to PM2.5in vitro and in vivo through the application of metabolomics and transcriptomics. In vitro, spermatocyte-derived GC-2spd cells were treated with 0, 25, 50, 100 μg/mL PM2.5 for 48 h. In vivo, the real-world exposure of PM2.5 for mouse was established. Forty-five male C57BL/6 mice were exposed to filtered air, unfiltered air, and concentrated ambient PM2.5 in Tangshan of China for 8 weeks, respectively. The results in vitro and in vivo showed that PM2.5 exposure inhibited GC-2spd cell proliferation and reduced sperm motility. Mitochondrial damage was observed after PM2.5 treatment. Increased Humanin and MOTS-c levels and decreased mitochondrial respiratory indicated that mitochondrial function was disturbed. Furthermore, nontargeted metabolomics analysis revealed that PM2.5 exposure could disturb the citrate cycle (TCA cycle) and reduce amino acids and nucleotide synthesis. Mechanically, the aryl hydrocarbon receptor (AhR) pathway was activated after exposure to PM2.5, with a significant increase in CYP1A1 expression. Further studies showed that PM2.5 exposure significantly increased both intracellular and mitochondrial reactive oxygen species (ROS) and activated NRF2 antioxidative pathway. With the RNA-sequencing technique, the differentially expressed genes induced by PM2.5 exposure were mainly enriched in the metabolism of xenobiotics by the cytochrome P450 pathway, of which Cyp1a1 was the most significantly changed gene. Our findings demonstrated that PM2.5 exposure could induce spermatocyte damage and energy metabolism disorder. The activation of the aryl hydrocarbon receptor might be involved in the mechanism of male reproductive toxicity.
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Affiliation(s)
- Fuquan Shi
- Key Lab of Medical Protection for Electromagnetic Radiation, Ministry of Education of China, Institute of Toxicology, College of Preventive Medicine, Army Medical University (Third Military Medical University), Chongqing, China
| | - Zhonghao Zhang
- Key Lab of Medical Protection for Electromagnetic Radiation, Ministry of Education of China, Institute of Toxicology, College of Preventive Medicine, Army Medical University (Third Military Medical University), Chongqing, China
| | - Jiankang Wang
- Key Lab of Medical Protection for Electromagnetic Radiation, Ministry of Education of China, Institute of Toxicology, College of Preventive Medicine, Army Medical University (Third Military Medical University), Chongqing, China
| | - Yimeng Wang
- Key Lab of Medical Protection for Electromagnetic Radiation, Ministry of Education of China, Institute of Toxicology, College of Preventive Medicine, Army Medical University (Third Military Medical University), Chongqing, China
| | - Jiuyang Deng
- School of Public Health, Shanxi Medical University, Taiyuan, China
| | - Yingfei Zeng
- School of Tropical Medicine and Laboratory Medicine, Hainan Medical University, Haikou, China
| | - Peng Zou
- Key Lab of Medical Protection for Electromagnetic Radiation, Ministry of Education of China, Institute of Toxicology, College of Preventive Medicine, Army Medical University (Third Military Medical University), Chongqing, China
| | - Xi Ling
- Key Lab of Medical Protection for Electromagnetic Radiation, Ministry of Education of China, Institute of Toxicology, College of Preventive Medicine, Army Medical University (Third Military Medical University), Chongqing, China
| | - Fei Han
- Key Lab of Medical Protection for Electromagnetic Radiation, Ministry of Education of China, Institute of Toxicology, College of Preventive Medicine, Army Medical University (Third Military Medical University), Chongqing, China
| | - Jinyi Liu
- Key Lab of Medical Protection for Electromagnetic Radiation, Ministry of Education of China, Institute of Toxicology, College of Preventive Medicine, Army Medical University (Third Military Medical University), Chongqing, China
| | - Lin Ao
- Key Lab of Medical Protection for Electromagnetic Radiation, Ministry of Education of China, Institute of Toxicology, College of Preventive Medicine, Army Medical University (Third Military Medical University), Chongqing, China
- *Correspondence: Jia Cao, ; Lin Ao,
| | - Jia Cao
- Key Lab of Medical Protection for Electromagnetic Radiation, Ministry of Education of China, Institute of Toxicology, College of Preventive Medicine, Army Medical University (Third Military Medical University), Chongqing, China
- *Correspondence: Jia Cao, ; Lin Ao,
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Yang W, Xu Y, Pan H, Tian F, Wang Y, Xia M, Hu J, Yang M, Tao S, Sun S, Kan H, Li R, Ying Z, Li W. Chronic exposure to diesel exhaust particulate matter impairs meiotic progression during spermatogenesis in a mouse model. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 202:110881. [PMID: 32574863 DOI: 10.1016/j.ecoenv.2020.110881] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Revised: 06/04/2020] [Accepted: 06/08/2020] [Indexed: 06/11/2023]
Abstract
Exposure to ambient PM2.5 may correlate with the decline of semen quality, and the underlying biological mechanism has not been fully understood. In the present study, mice were intratracheally instilled with diesel exhaust PM2.5 (DEP), and its effects on the spermatogenic process as well as the alterations of testicular gene expression profile were assessed. Our results showed that chronic exposure to DEP impaired the fertility of male mice without influencing their libido. Compared with Vehicle-exposed group, the sperm count and motility from DEP-exposed mice were significantly decreased. In addition, immunohistological staining of γH2AX and DMC1, biomarkers for meiotic double strand breaks (DSBs), demonstrated that chronic exposure to DEP comprised the repair of meiotic DSBs, thus disrupting the spermatogenesis. Deep RNA sequencing test showed altered expressions of testicular genes including the GnRH signaling pathway. In summary, our research demonstrated that chronic exposure to DEP may disrupt spermatogenesis through targeting the meiotic recombination, providing a new perspective for the research on the male reproductive system damage caused by air pollution.
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Affiliation(s)
- Wei Yang
- NHC Key Lab. of Reproduction Regulation (Shanghai Institute of Planned Parenthood Research), School of Public Health, Fudan University, Shanghai, China.
| | - Yanyi Xu
- Department of Environmental Health, School of Public Health, Fudan University, Shanghai, 200032, China.
| | - Hongjie Pan
- NHC Key Lab. of Reproduction Regulation (Shanghai Institute of Planned Parenthood Research), School of Public Health, Fudan University, Shanghai, China.
| | - Fang Tian
- NHC Key Lab. of Reproduction Regulation (Shanghai Institute of Planned Parenthood Research), School of Public Health, Fudan University, Shanghai, China.
| | - Yuzhu Wang
- NHC Key Lab. of Reproduction Regulation (Shanghai Institute of Planned Parenthood Research), School of Public Health, Fudan University, Shanghai, China.
| | - Minjie Xia
- NHC Key Lab. of Reproduction Regulation (Shanghai Institute of Planned Parenthood Research), School of Public Health, Fudan University, Shanghai, China.
| | - Jingying Hu
- NHC Key Lab. of Reproduction Regulation (Shanghai Institute of Planned Parenthood Research), School of Public Health, Fudan University, Shanghai, China.
| | - Mingjun Yang
- NHC Key Lab. of Reproduction Regulation (Shanghai Institute of Planned Parenthood Research), School of Public Health, Fudan University, Shanghai, China.
| | - Shimin Tao
- NHC Key Lab. of Reproduction Regulation (Shanghai Institute of Planned Parenthood Research), School of Public Health, Fudan University, Shanghai, China.
| | - Shenfei Sun
- NHC Key Lab. of Reproduction Regulation (Shanghai Institute of Planned Parenthood Research), School of Public Health, Fudan University, Shanghai, China.
| | - Haidong Kan
- Department of Environmental Health, School of Public Health, Fudan University, Shanghai, 200032, China.
| | - Runsheng Li
- NHC Key Lab. of Reproduction Regulation (Shanghai Institute of Planned Parenthood Research), School of Public Health, Fudan University, Shanghai, China.
| | - Zhekang Ying
- Department of Medicine Cardiology Division, University of Maryland School of Medicine, Baltimore, MD, 21201, USA.
| | - Weihua Li
- NHC Key Lab. of Reproduction Regulation (Shanghai Institute of Planned Parenthood Research), School of Public Health, Fudan University, Shanghai, China.
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Sun S, Zhao J, Cao W, Lu W, Zheng T, Zeng Q. Identifying critical exposure windows for ambient air pollution and semen quality in Chinese men. ENVIRONMENTAL RESEARCH 2020; 189:109894. [PMID: 32678738 DOI: 10.1016/j.envres.2020.109894] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Revised: 06/28/2020] [Accepted: 06/29/2020] [Indexed: 06/11/2023]
Abstract
Emerging studies documented the association between ambient air pollution exposure and semen quality, but the critical exposure windows have not been comprehensively studied. To identify susceptible windows for associations of exposure to ambient respirable particulate matter (PM10), nitrogen dioxide (NO2), sulfur dioxide (SO2), and ozone (O3) with sperm concentration, sperm count, total motility, and progressive motility, we recruited 1061 men attending an infertility clinic in Wuhan, China, between 2011 and 2013. We used a distributed lag multivariate linear regression to assess the exposure-lag-response relationship between semen quality and weekly air pollution exposure. The critical exposure windows were during the 6th to 12th sperm development weeks for PM10, 10th to 11th weeks for O3, and 0 to 5th weeks for SO2. Over the entire 12 weeks of spermatogenesis period, an interquartile range increase (IQR) increase in PM10 was associated with declined sperm concentration [-45.64% (95% CI: -59.97%, -26.18%) percent decrease], declined sperm count [-49.42% (95% CI: -64.42%, -28.09%) percent decrease], reduced total motility [-12.42 (95% CI: -20.47, -4.37)], and reduced progressive motility [-8.81 (95% CI: -16.00, -1.61)], SO2 per IQR increase was associated with reduced sperm concentration [-39.73% (95% CI: -55.96%, -17.51%) percent decrease] and total motility [-8.64 (95% CI: -16.90, -0.38)], but NO2 and O3 were not associated with any of the four sperm quality parameters. Our findings suggest that exposure to PM10 during spermatidogenesis period, exposure to SO2 during spermatocytogenesis period, and exposure to O3 during spermiogenesis period were associated with impaired semen quality, which implies air pollutants impair semen quality through varied pathways.
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Affiliation(s)
- Shengzhi Sun
- Department of Environmental Health, Boston University School of Public Health, 715 Albany Street, Boston, MA, 02118, USA
| | - Jinzhu Zhao
- Department of Pediatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science & Technology, PR China
| | - Wangnan Cao
- Center for Evidence Synthesis in Health, Brown University School of Public Health, Providence, RI, 02912, USA
| | - Wenqing Lu
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, PR China; Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, State Key Laboratory of Environmental Health (incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, PR China
| | - Tongzhang Zheng
- Department of Epidemiology, Brown University School of Public Health, Providence, RI, 02906, USA
| | - Qiang Zeng
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, PR China; Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, State Key Laboratory of Environmental Health (incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, PR China; Department of Epidemiology, Brown University School of Public Health, Providence, RI, 02906, USA.
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Wang C, Zhu G, Zhang L, Chen K. Particulate matter pollution and hospital outpatient visits for endocrine, digestive, urological, and dermatological diseases in Nanjing, China. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 261:114205. [PMID: 32113107 DOI: 10.1016/j.envpol.2020.114205] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Revised: 02/16/2020] [Accepted: 02/16/2020] [Indexed: 06/10/2023]
Abstract
Clinical or pathological evidence demonstrated that air pollution could undermine other organ systems of human body besides respiratory and circulation systems. Investigations that directly relate hospital outpatient visits for endocrine (ENDO), digestive (DIGE), urological (UROL), and dermatological (DERM) diseases categories with ambient particulate matter (PM) are still lacking, particularly in heavily polluted cities. Here, we conducted a time-series analysis using 812,624, 1,111,342, 539,803, and 741,662 hospital visits for ENDO, DIGE, UROL, and DERM, respectively, in Nanjing, China from 2013 to 2019. A generalized additive model was applied to estimate the exposure-response associations. Results showed that a 10 μg/m3 increase in PM2.5 concentration on lag 0 day was significantly associated with 0.59% (95% CI: 0.30%, 0.88%), 0.43% (0.15%, 0.70%), 0.36% (0.06%, 0.66%), and 0.65% (0.42%, 0.87%) increase for ENDO, DIGE, UROL, and DERM hospital visits, respectively. The estimated effects of PM10 were slightly smaller but still statistically significant. The magnitude and significance of the associations between PM and four health outcomes were sensitive to additional adjustment for co-pollutants. Exposure-response relationships were linear for PM concentrations lower than 100 μg/m3 but the curves became nonlinear across the full range of exposures due to a flatten slope at higher concentrations. We also explored the effect modifications by season (cold or warm), age (5-18, 18-64, 65-74, or 75+ years), and sex (male or female). Results showed that the DERM-related population aged 65 years or older was more vulnerable to PM exposure, compared with the 5 to 17-year age group; the DERM-related population aged 75 years or older and 65 years or older was more vulnerable to PM2.5 and PM10 exposure, respectively, compared with the 18 to 64-year age group. Our study provided suggestive evidence that ambient PM pollution was associated with ENDO, DIGE, UROL, and DERM outpatient hospital visits in Nanjing, China.
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Affiliation(s)
- Ce Wang
- School of Energy and Environment, Southeast University, Nanjing, 210096, China; Key Laboratory of Environmental Medicine Engineering, Ministry of Education, Southeast University, Nanjing, 210096, PR China.
| | - Guangcan Zhu
- School of Energy and Environment, Southeast University, Nanjing, 210096, China; Key Laboratory of Environmental Medicine Engineering, Ministry of Education, Southeast University, Nanjing, 210096, PR China.
| | - Lei Zhang
- Outpatient Department, Zhongda Hospital of Southeast University, Nanjing, 210096, PR China.
| | - Kai Chen
- Department of Environmental Health Sciences, Yale School of Public Health, New Haven, CT, 06520-8034, USA.
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KIF3A regulates the Wnt/β-catenin pathway via transporting β-catenin during spermatogenesis in Eriocheir sinensis. Cell Tissue Res 2020; 381:527-541. [PMID: 32458081 DOI: 10.1007/s00441-020-03220-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Accepted: 04/16/2020] [Indexed: 10/24/2022]
Abstract
The Wnt/β-catenin pathway participates in many important physiological events such as cell proliferation and differentiation in the male reproductive system. We found that Kinesin-2 motor KIF3A is highly expressed during spermatogenesis in Eriocheir sinensis; it may potentially promote the intracellular transport of cargoes in this process. However, only a few studies have focused on the relationship between KIF3A and the Wnt/β-catenin pathway in the male reproductive system of decapod crustaceans. In this study, we cloned and characterized the CDS of β-catenin in E. sinensis for the first time. Fluorescence in situ hybridization and immunofluorescence results showed the colocalization of Es-KIF3A and Es-β-catenin at the mRNA and the protein level respectively. To further explore the regulatory function of Es-KIF3A to the Wnt/β-catenin pathway, the es-kif3a was knocked down by double-stranded RNA (dsRNA) in vivo and in primary cultured cells in testes of E. sinensis. Results showed that the expression of es-β-catenin and es-dvl were decreased in the es-kif3a knockdown group. The protein expression level of Es-β-catenin was also reduced and the location of Es-β-catenin was changed from nucleus to cytoplasm in the late stage of spermatogenesis when es-kif3a was knocked down. Besides, the co-IP result demonstrated that Es-KIF3A could bind with Es-β-catenin. In summary, this study indicates that Es-KIF3A can positively regulate the Wnt/β-catenin pathway during spermatogenesis and Es-KIF3A can bind with Es-β-catenin to facilitate the nuclear translocation of Es-β-catenin.
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MiRNAs Expression Profiling of Bovine ( Bos taurus) Testes and Effect of bta-miR-146b on Proliferation and Apoptosis in Bovine Male Germline Stem Cells. Int J Mol Sci 2020; 21:ijms21113846. [PMID: 32481702 PMCID: PMC7312616 DOI: 10.3390/ijms21113846] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Revised: 05/21/2020] [Accepted: 05/26/2020] [Indexed: 12/15/2022] Open
Abstract
Spermatogenesis is a complex biological process regulated by well-coordinated gene regulation, including MicroRNAs (miRNAs). miRNAs are endogenous non-coding ribonucleic acids (ncRNAs) that mainly regulate the gene expression at post-transcriptional levels. Several studies have reported miRNAs expression in bull sperm and the process of spermatogenic arrest in cattle and yak. However, studies for the identification of differential miRNA expression and its mechanisms during the developmental stages of testis still remain uncertain. In the current study, we comprehensively analyzed the expression of miRNA in bovine testes at neonatal (3 days after birth, n = 3) and mature (13 months, n = 3) stages by RNA-seq. Moreover, the role of bta-miR-146b was also investigated in regulating the proliferation and apoptosis of bovine male germline stem cells (mGSCs) followed by a series of experiments. A total of 652 miRNAs (566 known and 86 novel miRNAs) were identified, whereas 223 miRNAs were differentially expressed between the two stages. Moreover, an elevated expression level of bta-miR-146b was found in bovine testis among nine tissues, and the functional studies indicated that the overexpression of bta-miR-146b inhibited the proliferation of bovine mGSCs and promoted apoptosis. Conversely, regulation of bta-miR-146b inhibitor promoted bovine mGSCs proliferation. This study provides a basis for understanding the regulation roles of miRNAs in bovine testis development and spermatogenesis.
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Cui L, Shi L, Li D, Li X, Su X, Chen L, Jiang Q, Jiang M, Luo J, Ji A, Chen C, Wang J, Tang J, Pi J, Chen R, Chen W, Zhang R, Zheng Y. Real-Ambient Particulate Matter Exposure-Induced Cardiotoxicity in C57/B6 Mice. Front Pharmacol 2020; 11:199. [PMID: 32296328 PMCID: PMC7136766 DOI: 10.3389/fphar.2020.00199] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Accepted: 02/14/2020] [Indexed: 12/14/2022] Open
Abstract
It is generally accepted that exposure to particulate matter (PM) increases the risk of cardiovascular-related morbidity and mortality, though the exact mechanism behind this has yet to be elucidated. Oxidative stress plays a potentially important role in the mechanism of toxicity, with Nrf2 serving as a major antioxidant gene. In the current study, a Nrf2 knockout mouse model was used in combination with an individual ventilated cage (IVC)-based real-ambient PM exposure system to assess the potential cardiotoxicity induced by real-ambient PM exposure and the potential role of Nrf2 and related signaling in this endpoint. After 6- or 11-weeks exposure to PM, ICP-mass spectrometry was used to assess the metal depositions in the heart tissue following PM exposure. Functional and morphological changes in the hearts were investigated with echocardiography and histopathology, and oxidative stress levels were assessed with a serum malondialdehyde content assay. In the further mechanistic study, an RNA-seq technique was utilized to assess the gene transcription status in the hearts of C57/B6 mice exposed to PM with or without Nrf2 knockout. The expression levels of genes of interest were then further investigated with quantitative real-time PCR and western blotting. The results indicated that PM exposure resulted in significant elevation of sodium, potassium, selenium, and ferrum levels in mouse heart tissue. Meanwhile, significantly altered heart function and morphology were observed. Interestingly, Nrf2 knockout led to abolishment of PM-induced effects in several functional parameters but not the morphological changes. Meanwhile, elevated malondialdehyde content was observed in Nrf2 knockout animals. RNA-seq results revealed thousands of genes altered by PM exposure and/or Nrf2 knockout, and this affected several pathways, such as MAPK, phagosome, calcium signaling, and JAK-STAT. In subsequent molecular studies, enhanced nuclear translocation of Nrf2 was also observed following PM exposure, while the MAPK signaling pathway along with related JAK-STAT and TGF-β1 pathway genes, such as p38MAPK, AKT, TAK1, JAK1, STAT3, GRB2, TGFb1, and SMAD2, were confirmed to be affected by PM exposure and/or Nrf2 knockout. The data suggested that PM may induce cardiotoxicity in C57/B6 mice in which Nrf2 plays both protective and detrimental roles involving cardiac-related pathways, such as MAPK, JAK-STAT, and TGF-β1.
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Affiliation(s)
- Lianhua Cui
- Department of Toxicology, School of Public Health, Qingdao University, Qingdao, China
| | - Limei Shi
- Department of Toxicology, School of Public Health, Qingdao University, Qingdao, China
| | - Daochuan Li
- Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Xiaobo Li
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, China
| | - Xuan Su
- Department of Toxicology, School of Public Health, Hebei Medical University, Shijiazhuang, China
| | - Liping Chen
- Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Qixiao Jiang
- Department of Toxicology, School of Public Health, Qingdao University, Qingdao, China
| | - Menghui Jiang
- Department of Toxicology, School of Public Health, Qingdao University, Qingdao, China
| | - Jing Luo
- Department of Toxicology, School of Public Health, Qingdao University, Qingdao, China
| | - Andong Ji
- Department of Toxicology, School of Public Health, Qingdao University, Qingdao, China
| | - Chen Chen
- Department of Toxicology, School of Public Health, Qingdao University, Qingdao, China
| | - Jianxun Wang
- School of Basic Medicine, Qingdao University, Qingdao, China
| | - JingLong Tang
- Department of Toxicology, School of Public Health, Qingdao University, Qingdao, China
| | - Jingbo Pi
- School of Public Health, China Medical University, Shenyang, China
| | - Rui Chen
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, China
| | - Wen Chen
- Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Rong Zhang
- Department of Toxicology, School of Public Health, Hebei Medical University, Shijiazhuang, China
| | - Yuxin Zheng
- Department of Toxicology, School of Public Health, Qingdao University, Qingdao, China
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Ren L, Huang J, Wei J, Zang Y, Zhao Y, Wu S, Zhao X, Zhou X, Sun Z, Lu H. Maternal exposure to fine particle matters cause autophagy via UPR-mediated PI3K-mTOR pathway in testicular tissue of adult male mice in offspring. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 189:109943. [PMID: 31761553 DOI: 10.1016/j.ecoenv.2019.109943] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Revised: 11/04/2019] [Accepted: 11/09/2019] [Indexed: 06/10/2023]
Abstract
Epidemiological studies have shown that particulate matters are closely related to human infertility. However, the long-term risk of particulate matters exposure in early life is rarely considered. For the first time this study is designed to explore and elucidate the mechanism of maternal exposure to fine particle matters (PM2.5) on autophagy in spermatogenic cells of adult offspring. Pregnant C57BL/6 mice were randomly divided into four groups. The 4.8 mg/kg.b.w group and the 43.2 mg/kg.b.w group were administered with different doses of PM2.5. The membrane control group was administered with PM2.5 sampling membrane and the control group received no treatment. The exposure was performed every three days from the day after vaginal plug was checked until delivery for a total of 6 times. The results showed that sperms motility and sperms concentration decreased, and sperm deformity increased in adult male offspring. The expression of SOD decreased and MDA increased. Moreover, the level of GRP78/ATF6 and P62 was upregulated, and the expression of PI3K/Akt/mTOR/p-mTOR was down-regulated. This suggests that early-life exposure to PM2.5 can induce autophagy through the PI3K/Akt/mTOR pathway mediated by unfolded protein response in adult testicular tissue. PM2.5 may pose a significant role and long-term threat to adult after early-life exposure.
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Affiliation(s)
- Lihua Ren
- School of Nursing, Peking University, Beijing, 100191, China
| | - Jing Huang
- School of Nursing, Peking University, Beijing, 100191, China
| | - Jialiu Wei
- Department of Epidemiology, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100037, China
| | - Yu Zang
- School of Nursing, Peking University, Beijing, 100191, China; School of Nursing, Hebei Medical University, China
| | - Yang Zhao
- School of Nursing, Peking University, Beijing, 100191, China
| | - Shaowei Wu
- Department of Occupational and Environmental Health Sciences, School of Public Health, Peking University, Beijing, 100191, China
| | - Xiaohong Zhao
- College of Applied Arts and Science of Beijing Union University, Beijing, 100191, China
| | - Xianqing Zhou
- Department of Toxicology and Hygienic Chemistry, School of Public Health, Capital Medical University, Beijing, 100069, China
| | - Zhiwei Sun
- Department of Toxicology and Hygienic Chemistry, School of Public Health, Capital Medical University, Beijing, 100069, China
| | - Hong Lu
- School of Nursing, Peking University, Beijing, 100191, China.
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Liu B, Shen LJ, Zhao TX, Sun M, Wang JK, Long CL, He DW, Lin T, Wu SD, Wei GH. Automobile exhaust-derived PM 2.5 induces blood-testis barrier damage through ROS-MAPK-Nrf2 pathway in sertoli cells of rats. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 189:110053. [PMID: 31862514 DOI: 10.1016/j.ecoenv.2019.110053] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Revised: 11/30/2019] [Accepted: 12/03/2019] [Indexed: 06/10/2023]
Abstract
Particulate matter with an aerodynamic diameter of less than 2.5 μm (PM2.5) derived from automobile exhaust can lead to serious male spermatogenesis dysfunction, but its specific molecular mechanism is unclear. In this experiment, we focused on the blood-testis barriers (BTB) and explored the intracellular mechanisms underlying the fertility toxicity of PM2.5 originating from automobile exhaust in the primary cultured Sertoli cells(SCs) of rats. After PM2.5 exposure, excessive reactive oxygen species (ROS) and increased apoptosis of SCs were detected. The expression of the BTB related proteins including ZO-1, Occludin, N-cadherin and β-catenin were significantly decreased and the spatial arrangement of F-actin was completely disordered through Immunofluorescence and Western blots tests. The phosphorylation of Jun N-terminal kinase (JNK), extracellular signal regulatory kinase (ERK), p38 mitogen-activated protein kinase (MAPK) were upregulated and nuclear factor (erythroid-derived 2) -like 2-related factor (Nrf2) was downregulated respectively. However, combined utilization of vitamin C and E were observed to prevent the increase of ROS generation, reduce celluar apoptosis, increase the expression of BTB related proteins, reconstructed the spatial arrangement of F-actin as well as improved the Nrf2 expression and attenuated the phosphorylation of the MAPK kinases and cleaved caspase-3 levels. Furthermore, ERK inhibitor (SCH772984), JNK inhibitor (SP600125) and p38 MAPK inhibitor (SB203580) obviously up-regulated BTB-related proteins expression as well as activated Nrf2 expression at varying degrees, indicating that ROS-MAPKs-Nrf2 is involved in the signaling pathway that leads to PM2.5-induced spermatogenesis dysfunction. These findings indicate that PM2.5 derived from automobile exhaust causes oxidative stress, which in turn causes cellular apoptosis of SCs and damage of the blood-testis barrier, resulting male spermatogenesis dysfunction, in which ROS-MAPK-Nrf-2 pathways may play a key role.
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Affiliation(s)
- Bin Liu
- Department of Urology, 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, Chongqing Key Laboratory of Pediatrics, Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Children's Hospital of Chongqing Medical University, Chongqing, 400014, P.R China; Department of Pediatric Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, 563000, P.R China
| | - Lian-Ju Shen
- Department of Urology, 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, Chongqing Key Laboratory of Pediatrics, Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Children's Hospital of Chongqing Medical University, Chongqing, 400014, P.R China; Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Chongqing, 400014, P.R China
| | - Tian-Xin Zhao
- Department of Urology, 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, Chongqing Key Laboratory of Pediatrics, Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Children's Hospital of Chongqing Medical University, Chongqing, 400014, P.R China
| | - Mang Sun
- Department of Urology, 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, Chongqing Key Laboratory of Pediatrics, Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Children's Hospital of Chongqing Medical University, Chongqing, 400014, P.R China
| | - Jun-Ke Wang
- Department of Urology, 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, Chongqing Key Laboratory of Pediatrics, Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Children's Hospital of Chongqing Medical University, Chongqing, 400014, P.R China
| | - Chun-Lan Long
- Department of Urology, 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, Chongqing Key Laboratory of Pediatrics, Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Children's Hospital of Chongqing Medical University, Chongqing, 400014, P.R China; Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Chongqing, 400014, P.R China
| | - Da-Wei He
- Department of Urology, 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, Chongqing Key Laboratory of Pediatrics, Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Children's Hospital of Chongqing Medical University, Chongqing, 400014, P.R China; Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Chongqing, 400014, P.R China
| | - Tao Lin
- Department of Urology, 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, Chongqing Key Laboratory of Pediatrics, Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Children's Hospital of Chongqing Medical University, Chongqing, 400014, P.R China; Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Chongqing, 400014, P.R China
| | - Sheng-de Wu
- Department of Urology, 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, Chongqing Key Laboratory of Pediatrics, Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Children's Hospital of Chongqing Medical University, Chongqing, 400014, P.R China; Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Chongqing, 400014, P.R China.
| | - Guang-Hui Wei
- Department of Urology, 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, Chongqing Key Laboratory of Pediatrics, Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Children's Hospital of Chongqing Medical University, Chongqing, 400014, P.R China; Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Chongqing, 400014, P.R China.
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Jiang YP, Ye RJ, Yang JM, Liu N, Zhang WJ, Ma L, Sun T, Niu JG, Zheng P, Yu JQ. Protective effects of Salidroside on spermatogenesis in streptozotocin induced type-1 diabetic male mice by inhibiting oxidative stress mediated blood-testis barrier damage. Chem Biol Interact 2019; 315:108869. [PMID: 31682803 DOI: 10.1016/j.cbi.2019.108869] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Revised: 09/10/2019] [Accepted: 10/21/2019] [Indexed: 12/14/2022]
Abstract
Spermatogenic dysfunction is one of the major secondary complications of male diabetes. Salidroside (SAL) is the important active ingredients isolated from Herba Cistanche, which exhibits numerous pharmacological activities such as antioxidant, anti-diabetic, and anti-inflammatory effects. The present study was designed to determine whether SAL contributes to the recovery from spermatogenic dysfunction in streptozotocin (STZ) induced type-1 diabetic mice. SAL (25, 50, or 100 mg/kg) and Clomiphene citrate (CC, 5 mg/kg) were orally administered to male type-1 diabetic mice for 10 weeks. Testis tissues were collected for histopathological and biochemical analysis. Moreover, reproductive organ weight, sperm parameters, and testicular cell DNA damage were estimated. The results revealed that SAL significantly improved the weight of the reproductive organs, sperm parameters and testicular morphology to different degrees in type-1 diabetic mice. Furthermore, reactive oxygen species (ROS) and malondialdehyde (MDA) levels were significantly reduced, and the activities of superoxide dismutase (SOD), catalase (CAT), and glutathione (GSH), markedly increased in the testicular tissue after SAL treatment. In addition, our data also showed a marked downregulation the fluorescence expressions of p38 MAPK phosphorylation and upregulation the protein expressions of ZO-1, Occludin, Claudin-11 and N-cadherin after SAL administration (100 mg/kg) compared with the type-1 diabetic group. In conclusion, these results demonstrated that SAL exerts protective effects on type-1 diabetes-induced male spermatogenic dysfunction, which is likely mediated by inhibiting oxidative stress-mediated blood testis barrier damage.
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Affiliation(s)
- Ya-Ping Jiang
- Department of Pharmacology, Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region, 750004, PR China
| | - Rui-Juan Ye
- Department of Pharmacology, Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region, 750004, PR China
| | - Jia-Mei Yang
- Department of Pharmacology, Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region, 750004, PR China
| | - Ning Liu
- Department of Pharmacology, Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region, 750004, PR China
| | - Wen-Jin Zhang
- Department of Pharmacology, Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region, 750004, PR China
| | - Lin Ma
- Ningxia Key Laboratory of Craniocerebral Diseases of Ningxia Hui Autonomous Region, Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region, 750004, PR China
| | - Tao Sun
- Ningxia Key Laboratory of Craniocerebral Diseases of Ningxia Hui Autonomous Region, Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region, 750004, PR China
| | - Jian-Guo Niu
- Ningxia Key Laboratory of Craniocerebral Diseases of Ningxia Hui Autonomous Region, Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region, 750004, PR China.
| | - Ping Zheng
- Department of Pharmacology, Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region, 750004, PR China.
| | - Jian-Qiang Yu
- Department of Pharmacology, Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region, 750004, PR China; Ningxia Hui Medicine Modern Engineering Research Center and Collaborative Innovation Center, Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region, 750004, PR China.
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42
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Protective effects of betaine on diabetic induced disruption of the male mice blood-testis barrier by regulating oxidative stress-mediated p38 MAPK pathways. Biomed Pharmacother 2019; 120:109474. [PMID: 31585299 DOI: 10.1016/j.biopha.2019.109474] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Revised: 09/17/2019] [Accepted: 09/18/2019] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Blood-testis barrier (BTB) impairments is one of the major secondary complications of diabetes. Betaine (BET) is the important active ingredients isolated from Lycium barbarum, which exhibits numerous pharmacological activities such as antioxidant, anti-diabetic, and anti-inflammatory effects. This study aimed to establish whether BET contributes to the recovery from BTB dysfunction in streptozotocin (STZ) induced diabetic mice. METHODS BET (200, 400, 800 mg/kg) was orally administered to diabetic mice for 8 weeks. Testis tissues were collected for histopathological and biochemical analysis, the reproductive organ weight was estimated. Antioxidant enzyme activity and BTB associated protein expressions were determined with their corresponding assay kits and western blot analysis. The results revealed that BET significantly improved the weight of the reproductive organs and testicular morphology in diabetic mice. Furthermore, reactive oxygen species (ROS) and malondialdehyde (MDA) levels were significantly reduced, and the activities of superoxide dismutase (SOD), catalase (CAT), and glutathione (GSH), markedly increased in the testicular tissue after SAL treatment. In addition, our data also showed a marked down-regulated the expressions of p38 MAPK phosphorylation and up-regulation the protein expressions of ZO-1, Occludin, Claudin-11, N-cadherin, and Connexin-43 after BET administration compared with the diabetic group. In conclusion, these results demonstrated that BET exerts protective effects on diabetes-induced BTB dysfunction, which may be through regulating oxidative stress-mediated p38 MAPK pathways.
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43
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Liu J, Zhang J, Ren L, Wei J, Zhu Y, Duan J, Jing L, Sun Z, Zhou X. Fine particulate matters induce apoptosis via the ATM/P53/CDK2 and mitochondria apoptosis pathway triggered by oxidative stress in rat and GC-2spd cell. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 180:280-287. [PMID: 31100592 DOI: 10.1016/j.ecoenv.2019.05.013] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2019] [Revised: 04/05/2019] [Accepted: 05/05/2019] [Indexed: 06/09/2023]
Abstract
Fine particulate matters (PM2.5) have been associated with male reproductive toxicity because it can penetrate into the lung's gas-exchange region, and spread to the whole body via circulatory system. Previous studies have shown that PM2.5 could induce DNA damage and apoptosis by reactive oxygen species (ROS). The aim of the present study is to determine the exact mechanism and role of apoptosis induced by PM2.5 in spermatocyte cells. Male Sprague-Dawley (SD) rats were treated with normal saline (control group) or PM2.5 with the doses of 1.8, 5.4 and 16.2 mg/kg bw. via intratracheal instillation every 3 days for 30 days. Mouse spermatocyte-derived cells (GC-2spd cells) were treated with various concentrations (0, 50, 100, 200 μg/mL) of PM2.5 for 24 h. The results showed that exposure to PM2.5 resulted in injury of testicular tissue and impaired mitochondria integrity in GC-2spd cells. Moreover, PM2.5 induced DNA damage and apoptosis in GC-2spad cells via ROS generation, and the ATM/P53/CDK2 and mitochondria apoptosis pathway autophagy signal pathway were activated. N-Acetyl-L-cysteine (NAC), a well-known antioxidant, ameliorated DNA damage, and inhibited apoptosis. These findings demonstrated PM2.5 might induce apoptosis via the mitochondrial apoptosis pathway through causing DNA damage resulting from oxidative stress, and finally caused spermatogenesis disorder.
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Affiliation(s)
- Jianhui Liu
- Department of Toxicology and Hygienic Chemistry, School of Public Health, Capital Medical University, Beijing, 100069, China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069, China
| | - Jin Zhang
- Department of Toxicology and Hygienic Chemistry, School of Public Health, Capital Medical University, Beijing, 100069, China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069, China
| | - Lihua Ren
- Department of Toxicology and Hygienic Chemistry, School of Public Health, Capital Medical University, Beijing, 100069, China; School of Nursing, Peking University, Beijing, 100191, China
| | - Jialiu Wei
- Department of Toxicology and Hygienic Chemistry, School of Public Health, Capital Medical University, Beijing, 100069, China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069, China
| | - Yupeng Zhu
- Department of Toxicology and Hygienic Chemistry, School of Public Health, Capital Medical University, Beijing, 100069, China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069, China
| | - Junchao Duan
- Department of Toxicology and Hygienic Chemistry, School of Public Health, Capital Medical University, Beijing, 100069, China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069, China
| | - Li Jing
- Department of Toxicology and Hygienic Chemistry, School of Public Health, Capital Medical University, Beijing, 100069, China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069, China
| | - Zhiwei Sun
- Department of Toxicology and Hygienic Chemistry, School of Public Health, Capital Medical University, Beijing, 100069, China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069, China.
| | - Xianqing Zhou
- Department of Toxicology and Hygienic Chemistry, School of Public Health, Capital Medical University, Beijing, 100069, China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069, China.
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Li D, Zhang R, Cui L, Chu C, Zhang H, Sun H, Luo J, Zhou L, Chen L, Cui J, Chen S, Mai B, Chen S, Yu J, Cai Z, Zhang J, Jiang Y, Aschner M, Chen R, Zheng Y, Chen W. Multiple organ injury in male C57BL/6J mice exposed to ambient particulate matter in a real-ambient PM exposure system in Shijiazhuang, China. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2019; 248:874-887. [PMID: 30856503 DOI: 10.1016/j.envpol.2019.02.097] [Citation(s) in RCA: 104] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2018] [Revised: 02/26/2019] [Accepted: 02/26/2019] [Indexed: 06/09/2023]
Abstract
The development of a rodent ambient particulate matter (PM) inhalation system is critical for drawing causal inferences between PM exposure and the onset of human diseases. In this study, we constructed a real-ambient PM exposure system to investigate multi-organ injury and the reversibility of the impairments in C57BL/6 J male mice exposed to PM with a duration of up to three months in Shijiazhuang, a city with the highest PM2.5 concentration in China. This unique exposure system provided an optimal scenario for round-the-clock PM exposure absent a change in the physiochemical properties of PM and minimized the disturbance to the mice habitat. The mean concentration of PM2.5 in the exposure chambers was 89.95, 79.98, and 87.87 μg/m3 at three different time points, respectively: weeks 1-3, week 1-6, and week 1-12. The injury in multiple organs, including lung, brain, heart, testis, and intestine, was profound and was evident by the significant pathological and functional alterations. Pulmonary pathological examination revealed severe interstitial inflammatory and alveolar hemorrhage throughout the exposure, which was in line with the reduced lung function and the increased cytokine excretion in bronchoalveolar lavage fluid and blood plasma. Notably, the PM-mediated inflammatory response in different systems was correlated with the severity of the injury and the attenuation of pulmonary lesions in the recovery group. Thus, the PM2.5-induced inflammatory response, the chemical components-induced cytotoxicity, genetic damage, and oxidative stress might be implicated in the impairment of multiple murine organs. These findings revealed the severity, sensitivity, and reversibility of multi-organ injury in response to a real-ambient PM exposure.
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Affiliation(s)
- Daochuan Li
- Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou, 510080, China
| | - Rong Zhang
- Department of Toxicology, School of Public Health, Hebei Medical University, Shijiazhuang, 050017, China
| | - Lianhua Cui
- School of Public Health, Qingdao University, Qingdao, 266021, China
| | - Chen Chu
- Department of Toxicology, School of Public Health, Hebei Medical University, Shijiazhuang, 050017, China
| | - Haiyan Zhang
- Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou, 510080, China
| | - Hao Sun
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, 210009, China
| | - Jing Luo
- School of Public Health, Qingdao University, Qingdao, 266021, China
| | - Lixiao Zhou
- Department of Toxicology, School of Public Health, Hebei Medical University, Shijiazhuang, 050017, China
| | - Liping Chen
- Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou, 510080, China
| | - Jian Cui
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, 210009, China
| | - Shen Chen
- Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou, 510080, China
| | - Bixian Mai
- State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, 510640, China
| | - Shejun Chen
- State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, 510640, China
| | - Jianzhen Yu
- Department of Chemistry, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Zongwei Cai
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, Hong Kong, China
| | - Jianqing Zhang
- Persistent Organic Pollution Laboratory, Shenzhen Center for Disease Control and Prevention, Shenzhen, 518055, China
| | - Yousheng Jiang
- Persistent Organic Pollution Laboratory, Shenzhen Center for Disease Control and Prevention, Shenzhen, 518055, China
| | - Michael Aschner
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, Forchheimer 209, 1300 Morris Park Avenue, Bronx, NY, 10461, USA
| | - Rui Chen
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, 210009, China
| | - Yuxin Zheng
- School of Public Health, Qingdao University, Qingdao, 266021, China
| | - Wen Chen
- Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou, 510080, China.
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45
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Yang B, Zhang Y, Li B, Zou Y, Xiao C. Fine particulate matter alters the microecology of the murine respiratory tract. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:8623-8632. [PMID: 30707384 DOI: 10.1007/s11356-019-04372-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2018] [Accepted: 01/24/2019] [Indexed: 06/09/2023]
Abstract
Fine particulate matter is a global challenge to human health. We investigated the effects and potential mechanisms of fine particulate matter on respiratory tract microecology in a lung injury mouse model. BALB/c mice were randomized into exposed and control groups. We found that the levels of soluble tumor necrosis factor receptor I was increased following the PM2.5 exposure. 16S rRNA sequencing of respiratory tract lavage fluid confirmed that the composition of the respiratory tract microecology was altered by the exposure. Lactobacillus was the most abundant of bacterial species present. Collectively, these results establish a link between exposure to fine particulate matter and alterations to the respiratory tract microecology. Elucidation of the underlying mechanisms may lead to treatment strategies in lung injury.
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Affiliation(s)
- Biao Yang
- Key Lab of Environmental Pollution and Microecology of Liaoning Province, Shenyang Medical College, No. 146, Huanghe North Street, Shenyang, Liao Ning, People's Republic of China
| | - Yu Zhang
- Key Lab of Environmental Pollution and Microecology of Liaoning Province, Shenyang Medical College, No. 146, Huanghe North Street, Shenyang, Liao Ning, People's Republic of China
| | - Bingyu Li
- Key Lab of Environmental Pollution and Microecology of Liaoning Province, Shenyang Medical College, No. 146, Huanghe North Street, Shenyang, Liao Ning, People's Republic of China
| | - Yang Zou
- Key Lab of Environmental Pollution and Microecology of Liaoning Province, Shenyang Medical College, No. 146, Huanghe North Street, Shenyang, Liao Ning, People's Republic of China
| | - Chunling Xiao
- Key Lab of Environmental Pollution and Microecology of Liaoning Province, Shenyang Medical College, No. 146, Huanghe North Street, Shenyang, Liao Ning, People's Republic of China.
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