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Park HJ, Zhang M, Lee WY, Hong KH, Do JT, Park C, Song H. Toxic Effects of Nonylphenol on Neonatal Testicular Development in Mouse Organ Culture. Int J Mol Sci 2020; 21:E3491. [PMID: 32429066 PMCID: PMC7279013 DOI: 10.3390/ijms21103491] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Revised: 05/11/2020] [Accepted: 05/12/2020] [Indexed: 12/23/2022] Open
Abstract
Nonylphenol (NP) is an alkylphenol that is widely used in chemical manufacturing. Exposure to this toxic environmental contaminant has been shown to negatively affect the reproductive system. Herein, we evaluated the toxicity of NP in mouse testes, while using in vitro organ culture. Mouse testicular fragments (MTFs), derived from five-day postpartum neonatal mouse testes, were exposed to different concentrations of NP (1-50 μM) for 30 days. The results showed that NP impaired germ cell development and maintenance. Furthermore, NP significantly downregulated the transcript levels of both undifferentiated and differentiated germ cell marker genes relative to those in controls. In particular, a high dose of NP (50 µM) led to complete germ cell depletion and resulted in spermatogenic failure, despite the presence of Sertoli and Leydig cells. In addition, the mRNA expression of steroidogenic enzymes, such as steroidogenic acute regulatory protein (STAR), Cytochrome P450 Family 11 Subfamily A Member 1 (Cyp11α1), Cytochrome P450 17A1 (Cyp17α1), and androgen receptor (AR), increased with increasing concentration of NP. Conversely, the expression of estrogen receptor alpha (ESR1) and Cytochrome P450 family 19 subfamily A member 1 (Cyp19α1) in NP-exposed MTFs decreased when compared to that of the control. Taken together, this study demonstrates that NP has a negative effect on prepubertal spermatogenesis and germ cell maintenance and it disrupts steroidogenesis and induces hormonal imbalance in MTFs.
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Affiliation(s)
- Hyun-Jung Park
- Department of Stem Cell and Regenerative Biology, Konkuk University, 1 Hwayang-dong, Gwangjin-gu, Seoul 05029, Korea; (H.-J.P.); (M.Z.); (K.-H.H.); (J.T.D.); (C.P.)
| | - Mingtian Zhang
- Department of Stem Cell and Regenerative Biology, Konkuk University, 1 Hwayang-dong, Gwangjin-gu, Seoul 05029, Korea; (H.-J.P.); (M.Z.); (K.-H.H.); (J.T.D.); (C.P.)
| | - Won-Young Lee
- Department of Beef Science, Korea National College of Agricultures and Fisheries, Jeonju-si, Jeonbuk 54874, Korea;
| | - Kwon-Ho Hong
- Department of Stem Cell and Regenerative Biology, Konkuk University, 1 Hwayang-dong, Gwangjin-gu, Seoul 05029, Korea; (H.-J.P.); (M.Z.); (K.-H.H.); (J.T.D.); (C.P.)
| | - Jeong Tae Do
- Department of Stem Cell and Regenerative Biology, Konkuk University, 1 Hwayang-dong, Gwangjin-gu, Seoul 05029, Korea; (H.-J.P.); (M.Z.); (K.-H.H.); (J.T.D.); (C.P.)
| | - Chankyu Park
- Department of Stem Cell and Regenerative Biology, Konkuk University, 1 Hwayang-dong, Gwangjin-gu, Seoul 05029, Korea; (H.-J.P.); (M.Z.); (K.-H.H.); (J.T.D.); (C.P.)
| | - Hyuk Song
- Department of Stem Cell and Regenerative Biology, Konkuk University, 1 Hwayang-dong, Gwangjin-gu, Seoul 05029, Korea; (H.-J.P.); (M.Z.); (K.-H.H.); (J.T.D.); (C.P.)
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Liu J, Tuo W, Wu X, Xiong J, Yu E, Yin C, Ma Z, Liu L. Immunoproteomic and mass spectrometric analysis of Eimeria acervulina antigens recognized by antisera from chickens infected with E. acervulina, E. tenella or E. necatrix. Parasit Vectors 2020; 13:93. [PMID: 32085718 PMCID: PMC7035704 DOI: 10.1186/s13071-020-3965-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Accepted: 02/13/2020] [Indexed: 11/10/2022] Open
Abstract
Background Coccidiosis is caused by Eimeria spp. and can result in severe economic losses to the global poultry industry. Due to anticoccidial drug resistance rapidly developing in the parasites and drug residues in poultry products, efficacious and safe alternative coccidia control measures are needed. The objective of the present study was to identify common protective antigens which may be used as vaccine candidates in the development of subunit, multivalent, cross-protective vaccines against most of the economically important Eimeria species. Methods Whole sporozoite proteins of Eimeria acervulina were prepared and analyzed by 2-dimensional gel electrophoresis (2-DE) followed by western blotting using immune sera specific to E. tenella, E. acervulina, or E. necatrix. The protein spots detected by all three immune sera were then excised from the preparative gel and protein ID was performed by MALDI-TOF-MS/MS. Results Approximately 620 E. acervulina sporozoite protein spots were demonstrated by 2-DE with silver staining, among which 23 protein spots were recognized by immune sera specific to all three Eimeria species. The results showed that 21 putative E. acervulina proteins were identified, which include proteins with known enzymatic properties, and those which are involved in protein translation, transport and trafficking, and ribosomal biogenesis and functions. There is one protein which may be involved in transcription and one heat-shock protein. Two proteins contain predicted domains, but with no apparent functions known. There were 2 protein spots which had no detectable proteins. None of the proteins has a predicted signal peptide or a transmembrane domain; however, 6 of the 21 putative proteins were predicted to be potentially secretory through the non-classical pathway. Conclusions Our study identified a diverse group of antigens immunologically common to all three Eimeria species, none of which was previously characterized and tested as a vaccine candidate. Further research on immunogenicity and cross-protective potential of these individual proteins as vaccine candidates will aid the development of vaccines against the most common and pathogenic Eimeria spp.![]()
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Affiliation(s)
- Jin Liu
- Jiangxi Provincial Key Laboratory for Animal Health, College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, 330045, Jiangxi, People's Republic of China
| | - Wenbin Tuo
- Animal Parasitic Diseases Laboratory, Agricultural Research Service, United States Department of Agriculture, Beltsville, MD, 20705, USA
| | - Xiangdong Wu
- Jiangxi Provincial Key Laboratory for Animal Health, College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, 330045, Jiangxi, People's Republic of China
| | - Jiaming Xiong
- Jiangxi Provincial Key Laboratory for Animal Health, College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, 330045, Jiangxi, People's Republic of China
| | - Enchao Yu
- Jiangxi Provincial Key Laboratory for Animal Health, College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, 330045, Jiangxi, People's Republic of China
| | - Chao Yin
- Jiangxi Provincial Key Laboratory for Animal Health, College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, 330045, Jiangxi, People's Republic of China
| | - Zhiwu Ma
- Jiangxi Provincial Key Laboratory for Animal Health, College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, 330045, Jiangxi, People's Republic of China
| | - Liheng Liu
- Jiangxi Provincial Key Laboratory for Animal Health, College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, 330045, Jiangxi, People's Republic of China.
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Duan P, Liu B, Morais CLM, Zhao J, Li X, Tu J, Yang W, Chen C, Long M, Feng X, Martin FL, Xiong C. 4-Nonylphenol effects on rat testis and sertoli cells determined by spectrochemical techniques coupled with chemometric analysis. CHEMOSPHERE 2019; 218:64-75. [PMID: 30469005 DOI: 10.1016/j.chemosphere.2018.11.086] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Revised: 11/11/2018] [Accepted: 11/12/2018] [Indexed: 06/09/2023]
Abstract
Herein, vibrational spectroscopy has been applied for qualitative identification of biomolecular alterations that occur in cells and tissues following chemical treatment. Towards this end, we combined attenuated total reflection Fourier-transform infrared (ATR-FTIR) and Raman spectroscopy to assess testicular toxicology after 4-nonylphenol (NP) exposure, an estrogenic endocrine disruptor affecting testicular function in rats and other species. Rats aged 21, 35 or 50 days received NP at intra-peritoneal doses of 0, 25, 50 or 100 mg/kg for 20 consecutive days. Primary Sertoli cells (SCs) were treated with NP at various concentrations (0, 2.5, 5, 10 or 20 μM) for 12 h. Post-exposure, testicular cells, interstitial tissue and SCs were interrogated respectively using spectrochemical techniques coupled with multivariate analysis. Distinct biomolecular segregation between the NP-exposed samples vs. control were observed based on infrared (IR) spectral regions of 3200-2800 cm-1 and 1800-900 cm-1, and the Raman spectral region of 1800-900 cm-1. For in vivo experiments, the main wavenumbers responsible for segregation varied significantly among the three age classes. The main IR and Raman band differences between NP-exposed and control groups were observed for Amide (proteins), lipids and DNA/RNA. An interesting finding was that the peptide aggregation level, Amide Ӏ-to-Amide II ratio, and phosphate-to-carbohydrate ratio were considerably reduced in ex vivo NP-exposed testicular cells or SCs in vitro. This study demonstrates that ATR-FTIR and Raman spectroscopy techniques can be applied towards analysing NP-induced testicular biomolecular alterations.
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Affiliation(s)
- Peng Duan
- Family Planning Research Institute, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China; Center for Reproductive Medicine, Xiangyang No. 1 People's Hospital, Hubei University of Medicine, Xiangyang, 441000, China
| | - Bisen Liu
- Department of Epidemiology and Biostatistics, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Camilo L M Morais
- School of Pharmacy and Biomedical Sciences, University of Central Lancashire, Preston PR1 2HE, UK
| | - Jing Zhao
- Department of Epidemiology and Health Statistics, School of Public Health, Medical College, Wuhan University of Science and Technology, Wuhan, 430030, China
| | - Xiandong Li
- Department of Clinical Laboratory, Taihe Hospital, Hubei University of Medicine, Shiyan, 442000, China
| | - Jian Tu
- Reproductive Medicine Center, Maternal and Child Health Care Hospital of Yueyang City, Yueyang, 414000, China
| | - Weiyingxue Yang
- Department of Epidemiology and Biostatistics, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Chunling Chen
- Department of Epidemiology and Biostatistics, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Manman Long
- Department of Epidemiology and Biostatistics, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Xiaobing Feng
- Department of Epidemiology and Biostatistics, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Francis L Martin
- School of Pharmacy and Biomedical Sciences, University of Central Lancashire, Preston PR1 2HE, UK.
| | - Chengliang Xiong
- Family Planning Research Institute, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China; Center for Reproductive Medicine, Wuhan Tongji Reproductive Medicine Hospital, 128 Sanyang Road, Wuhan, 430013, China.
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Qian H, Tao Y, Jiang L, Wang Y, Lan T, Wu M, Pang J, Appiah-Kubi K, Chen Y, Wu Y. PKG II effectively reversed EGF-induced protein expression alterations in human gastric cancer cell lines. Cell Biol Int 2017; 42:435-442. [PMID: 29150923 DOI: 10.1002/cbin.10912] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2017] [Accepted: 11/16/2017] [Indexed: 01/02/2023]
Abstract
Epidermal growth factor receptor (EGFR) plays an important role in gastric cancer (GC) progression. Our previous data demonstrated that type II cGMP-dependent protein kinase (PKG II) could block the EGF-EGFR axis as well as down-stream signaling pathways, for example, MAPK, PI3 K, and PLC in GC cells. However, the exact mechanisms of PKG II against cancer remain unclear. Therefore, the present work was to address the above question. Human GC cell line AGS was infected with adenoviral construct encoding cDNA of PKG II (Ad-PKG II) to up-regulate PKG II and then treated with 8-pCPT-cGMP. Two-dimensional electrophoresis (2-DE) was used to analyze the changes of protein expression in the cells. The results showed that 17 proteins had more than twofold changes in EGF-treated group compared with control. However, Ad-PKG II could effectively reversed the changes. Furthermore, far upstream element-binding protein 1 (FUBP1) and MarvelD3 were chosen and PKG II activation reversed EGF/EGFR-induced up-regulation of FUBP1 and downregulation of MarvelD3, respectively. MarvelD3 silence effectively abolished the inhibitory effect of PKG II on EGF-triggered migration. These data indicated that the inhibitory effect of PKG II partially was associated with MarvelD3.
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Affiliation(s)
- Hai Qian
- Medical School, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu, 212013, P. R. China
| | - Yan Tao
- Medical School, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu, 212013, P. R. China
| | - Lu Jiang
- Medical School, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu, 212013, P. R. China
| | - Ying Wang
- Medical School, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu, 212013, P. R. China
| | - Ting Lan
- Medical School, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu, 212013, P. R. China
| | - Min Wu
- Medical School, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu, 212013, P. R. China
| | - Ji Pang
- Medical School, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu, 212013, P. R. China
| | - Kwaku Appiah-Kubi
- Department of Applied Biology, University for Development Studies, Navrongo, Ghana
| | - Yongchang Chen
- Medical School, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu, 212013, P. R. China
| | - Yan Wu
- Medical School, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu, 212013, P. R. China
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SEC-induced activation of ANXA7 GTPase suppresses prostate cancer metastasis. Cancer Lett 2017; 416:11-23. [PMID: 29247827 DOI: 10.1016/j.canlet.2017.12.008] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2017] [Revised: 12/04/2017] [Accepted: 12/05/2017] [Indexed: 02/06/2023]
Abstract
Annexin A7 (ANXA7) is a suppressor of tumorigenesis and metastasis in prostate cancer. Activated ANXA7 GTPase promotes prostate cancer cell apoptosis. However, the role and underlying mechanism of ANXA7 GTPase in prostate cancer metastasis have not been established. RKIP is a metastatic suppressor and downregulated in prostate cancer metastases. The binding of RKIP and its target proteins could inhibit the activation of its interactive partners. However, the effect of RKIP on ANXA7 GTPase activation is not clear. Here, we report that activation of ANXA7 GTPase by a small molecule SEC ((S)-ethyl 1-(3-(4-chlorophenoxy)-2-hydroxypropyl)-3- (4-methoxyphenyl)-1H-pyrazole-5-carboxylate) effectively inhibited prostate cancer metastasis. Mechanistically, activated ANXA7 promoted AMPK phosphorylation, leading to decreased mTORC1 activity, suppressed STAT3 nuclear translocation, and downregulation of pro-metastatic genes, including CCL2, APLN, and IL6ST. Conversely, RKIP interacted with ANXA7 and impaired activation of ANXA7 GTPase by SEC and its downstream signaling pathway. Notably, SEC treatment suppressed metastasis of prostate cancer cells in in vivo orthotopic analysis. Together, our findings provide a novel insight into how metastasis of prostate cancer with low RKIP expression is suppressed by SEC-induced activation of ANXA7 GTPase via the AMPK/mTORC1/STAT3 signaling pathway.
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Zhang J, Dong W, Meng Y, Jiang M, Zhan Z. Proteomic analysis of serum deprivation in tongue squamous cell carcinoma. Mol Med Rep 2017; 16:9323-9330. [PMID: 29039553 PMCID: PMC5779986 DOI: 10.3892/mmr.2017.7807] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2016] [Accepted: 06/06/2017] [Indexed: 11/05/2022] Open
Abstract
The occurrence of tongue squamous cell carcinoma (TSCC) is closely correlated with serum components; however, the detailed mechanism remains to be fully elucidated. Proteomic analysis contributed to the discovery of potential biomarkers and provided an insight into TSCC at a molecular level. The present study investigated the effect of serum deprivation on the Tca‑8113 TSCC cell line through protein profiling using two‑dimensional gel electrophoresis and mass spectrometry, with the aim of improving TSCC diagnosis. The results showed that the Tca‑8113 cells maintained proliferative capacity and resisted apoptosis following serum deprivation. A total of 43 proteins were upregulated and 45 were downregulated following serum deprivation for 24 h, compared with untreated controls (0 h). The upregulated caspase-7, heat shock protein 27 and Annexin A1, and the downregulated peroxiredoxin‑6 and heat shock protein 70, were selected for verification using reverse transcription‑polymerase chain reaction analysis following serum deprivation for 16 h. The results indicated that reactive oxygen species may be important in serum deprivation‑induced oxidative stress.
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Affiliation(s)
- Junfeng Zhang
- Discipline of Chinese and Western Integrative Medicine, School of Medicine and Life Sciences, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210023, P.R. China
| | - Wei Dong
- Discipline of Chinese and Western Integrative Medicine, School of Medicine and Life Sciences, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210023, P.R. China
| | - Yufen Meng
- Discipline of Chinese and Western Integrative Medicine, School of Medicine and Life Sciences, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210023, P.R. China
| | - Miao Jiang
- College of Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210023, P.R. China
| | - Zhen Zhan
- Discipline of Chinese and Western Integrative Medicine, School of Medicine and Life Sciences, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210023, P.R. China
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Ji Z, Liu H, Fang L, Yu Y, Zhou Z. Use of immunoproteomics to identify immunogenic proteins in a rat model of acute respiratory distress syndrome. Mol Med Rep 2017; 16:7625-7632. [PMID: 28944852 DOI: 10.3892/mmr.2017.7557] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2016] [Accepted: 07/17/2017] [Indexed: 11/06/2022] Open
Abstract
Acute respiratory distress syndrome (ARDS) is a common and life‑threatening clinical syndrome, and seeking biomarkers of ARDS has been an area of continuing research. The present study hypothesized that alterations to certain immunogenic substances occur in injured lungs and are able to specifically bind with corresponding proteins in the blood, and that these proteins may be readily detected. To investigate this hypothesis, a rat model of ARDS was established by cecal ligation and puncture surgery, and an immunoproteomics approach, using serum as the primary antibody in a western blot analysis, was used with the aim of identifying immunogenic proteins in the injured lungs. Ingenuity Pathway Analysis (IPA) was used for bioinformatics analysis, and mass spectrometric analysis was used to identify a total of 38 differentially expressed immunogenic proteins. Bioinformatics analysis revealed that the top canonical pathways in which the identified proteins may be involved were gluconeogenesis I, glycolysis I, choline degradation I, NADH repair and heme degradation. IPA Biomarker Filter analysis with the terms 'acute respiratory distress syndrome/acute lung injury' was used to screen 13 proteins as candidate biomarkers. These proteins were described as antigens, and suggested that paired antibodies may be detected in the plasma of patients at high risk of ARDS. Analysis of these identified proteins may provide novel insights into the potential pathological mechanisms of ARDS.
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Affiliation(s)
- Zongshu Ji
- Department of Critical Care Medicine, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, P.R. China
| | - Haiyan Liu
- Department of Critical Care Medicine, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, P.R. China
| | - Linsen Fang
- Department of Burns, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, P.R. China
| | - Youxin Yu
- Department of Burns, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, P.R. China
| | - Zheng Zhou
- Department of General Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, P.R. China
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Duan P, Hu C, Butler HJ, Quan C, Chen W, Huang W, Tang S, Zhou W, Yuan M, Shi Y, Martin FL, Yang K. 4-Nonylphenol induces disruption of spermatogenesis associated with oxidative stress-related apoptosis by targeting p53-Bcl-2/Bax-Fas/FasL signaling. ENVIRONMENTAL TOXICOLOGY 2017; 32:739-753. [PMID: 27087316 DOI: 10.1002/tox.22274] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2015] [Revised: 03/31/2016] [Accepted: 04/01/2016] [Indexed: 06/05/2023]
Abstract
4-Nonylphenol (NP) is a ubiquitous environmental chemical with estrogenic activity. Our aim was to test the hypothesis that pubertal exposure to NP leads to testicular dysfunction. Herein, 24 7-week-old rats were randomly divided into four groups and treated with NP (0, 25, 50, or 100 mg/kg body weight every 2 days for 20 consecutive days) by intraperitoneal injection. Compared to untreated controls, the parameters of sperm activation rate, curvilinear velocity, average path velocity, and swimming velocity were significantly lower at doses of 100 mg/kg, while sperm morphological abnormalities were higher, indicating functional disruption and reduced fertilization potential. High exposure to NP (100 mg/kg) resulted in disordered arrangement of spermatoblasts and reduction of spermatocytes in seminiferous tubules, while tissues exhibited a marked decline in testicular fructose content and serum FSH, LH, and testosterone levels. Oxidative stress was induced by NP (50 or 100 mg/kg) as evidenced by elevated MDA, decreased SOD and GSH-Px, and inhibited antioxidant gene expression (CAT, GPx, SOD1, and CYP1B1). In addition, NP treatment decreased proportions of Ki-67-positive cells and increased apoptosis in a dose-dependent manner. Rats treated with 100 mg/kg NP exhibited significantly increased mRNA expression of caspase-1, -2, -9, and -11, decreased caspase-8 and PCNA1 mRNA expression, downregulation of Bcl-2/Bax ratios and upregulation of Fas, FasL, and p53 at the protein and mRNA levels. Taken together, NP-induced apoptosis, hormonal deficiencies, and depletion of fructose potentially impairs spermatogenesis and sperm function. p53-independent Fas/FasL-Bax/Bcl-2 pathways may be involved in NP-induced oxidative stress-related apoptosis. © 2016 Wiley Periodicals, Inc. Environ Toxicol 32: 739-753, 2017.
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Affiliation(s)
- Peng Duan
- MOE (Ministry of Education) Key Lab of Environment and Health, Department of Occupational and Environmental Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Chunhui Hu
- Department of Laboratory Medicine, Taihe Hospital, Hubei University of Medicine, Shiyan, Hubei, 442000, China
| | - Holly J Butler
- Centre for Biophotonics, Lancaster Environment Centre, Lancaster University, Bailrigg, Lancaster, LA1 4YQ, United Kingdom
| | - Chao Quan
- MOE (Ministry of Education) Key Lab of Environment and Health, Department of Occupational and Environmental Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Wei Chen
- MOE (Ministry of Education) Key Lab of Environment and Health, Department of Occupational and Environmental Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Wenting Huang
- MOE (Ministry of Education) Key Lab of Environment and Health, Department of Occupational and Environmental Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Sha Tang
- MOE (Ministry of Education) Key Lab of Environment and Health, Department of Occupational and Environmental Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Wei Zhou
- MOE (Ministry of Education) Key Lab of Environment and Health, Department of Occupational and Environmental Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Meng Yuan
- MOE (Ministry of Education) Key Lab of Environment and Health, Department of Occupational and Environmental Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Yuqin Shi
- Department of Epidemiology and Health Statistics, School of Public Health, Medical College, Wuhan University of Science and Technology, Wuhan, 430030, China
| | - Francis L Martin
- Centre for Biophotonics, Lancaster Environment Centre, Lancaster University, Bailrigg, Lancaster, LA1 4YQ, United Kingdom
| | - Kedi Yang
- MOE (Ministry of Education) Key Lab of Environment and Health, Department of Occupational and Environmental Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
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Noorimotlagh Z, Haghighi NJ, Ahmadimoghadam M, Rahim F. An updated systematic review on the possible effect of nonylphenol on male fertility. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:3298-3314. [PMID: 27826822 DOI: 10.1007/s11356-016-7960-y] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2016] [Accepted: 10/20/2016] [Indexed: 05/20/2023]
Abstract
Diverse industries like detergents, resins and polymers, hair dyes, intravaginal spermicides, and pesticides produce endocrine disruptor (ED)-containing wastewaters that have hazardous effects on the environment and public health. Nonylphenol (NP) is a chemical substance that consists of a phenolic group and an attached lipophilic linear nonyl chain. NP has weak estrogenic activity and affects estrogen receptor (ER), as well as induces male infertility via a negative impact on spermatogenesis and sperm quality. The aim of this study was to comprehensively review all available literature about the side effects of NP on the male genital system. We systematically searched Scopus and PubMed using MeSH terms that include "Organic Chemicals," "Infertility," "Infertility, Male," "Nonylphenol", ("Infertility, Male"[Mesh]) OR "Nonylphenol" [Supplementary Concept]) OR "Prostate"[Mesh]) OR "Spermatozoa"[Mesh]) OR "Sertoli Cells"[Mesh]) OR "Leydig Cells"[Mesh] OR "Male accessory gland" OR "Epididym" OR "Reproductive toxicity"), and all other possible combinations from January 1, 1970, to September 15, 2016, with language limit. The initial search identified 117,742 potentially eligible studies, of which 33 met the established inclusion criteria and were included in the analysis. Thirty-three selected studies include animal model (n = 18), cell line (n = 15), human model (n = 1), morphology (n = 13), sperm quality (n = 17), and toxicity (n = 14). This review highlighted the evidence for the ED effect of NP that acts through interference with ER, discussing male reproductive tract perturbations. We critically discuss the available evidence on the effect of NP on sperm quality (such as motility, viability, sperm count, and sperm concentration), dramatic morphological changes (such as change of weights of testes and epididymis), and biochemical changes related to oxidative stress in testes. Finally, it is important to take caution with the continued use of NP that disrupts male reproductive health.
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Affiliation(s)
- Zahra Noorimotlagh
- Environmental Technologies Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
- Student Research Committee, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Neemat Jaafarzadeh Haghighi
- Environmental Technologies Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
- Department of Environmental Health Engineering, School of Public Health, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Mehdi Ahmadimoghadam
- Environmental Technologies Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
- Department of Environmental Health Engineering, School of Public Health, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Fakher Rahim
- PhD in Molecular Medicine, Health Research Institute, Thalassemia and Hemoglobinopathies Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
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Liu S, Wang Z, Miao J. Potential roles of annexin A7 GTPase in autophagy, senescence and apoptosis. RSC Adv 2016. [DOI: 10.1039/c6ra21736b] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
This review covers the roles of ANXA7 GTPase in orchestrating autophagy, senescence and apoptosis interactive networks in various cell types.
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Affiliation(s)
- ShuYan Liu
- Shandong Provincial Key Laboratory of Animal Cells and Developmental Biology
- School of Life Science
- Shandong University
- Jinan 250100
- China
| | - ZhaoYang Wang
- Shandong Provincial Key Laboratory of Animal Cells and Developmental Biology
- School of Life Science
- Shandong University
- Jinan 250100
- China
| | - JunYing Miao
- Shandong Provincial Key Laboratory of Animal Cells and Developmental Biology
- School of Life Science
- Shandong University
- Jinan 250100
- China
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11
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Różalska S, Soboń A, Pawłowska J, Wrzosek M, Długoński J. Biodegradation of nonylphenol by a novel entomopathogenic Metarhizium robertsii strain. BIORESOURCE TECHNOLOGY 2015; 191:166-172. [PMID: 25989092 DOI: 10.1016/j.biortech.2015.05.011] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2015] [Revised: 05/06/2015] [Accepted: 05/07/2015] [Indexed: 06/04/2023]
Abstract
The biodegradation of nonylphenol (NP) by a newly isolated form of the larva fungal strain Metarhizium robertsii IM 6519 was investigated in this study. This isolate was capable of degrading 4-n-NP, and multiple metabolites were detected. The coexistence of parallel degradation pathways with versatile hydroxylation in different positions of the alkyl chain is a unique feature of this strain. Moreover, several metabolites previously described only in higher eukaryotes were detected in the fungal cultures. The degradation process led to the mineralization of 4-n-NP (with an efficiency of 36%), a great advantage of this strain that results in complete removal of toxic substrate from the environment.
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Affiliation(s)
- Sylwia Różalska
- Department of Industrial Microbiology and Biotechnology, Faculty of Biology and Environmental Protection, University of Łódź, Poland
| | - Adrian Soboń
- Department of Industrial Microbiology and Biotechnology, Faculty of Biology and Environmental Protection, University of Łódź, Poland
| | - Julia Pawłowska
- Department of Molecular Phylogenetics and Evolution, Institute of Botany, Faculty of Biology, University of Warsaw, Poland
| | - Marta Wrzosek
- Department of Molecular Phylogenetics and Evolution, Institute of Botany, Faculty of Biology, University of Warsaw, Poland
| | - Jerzy Długoński
- Department of Industrial Microbiology and Biotechnology, Faculty of Biology and Environmental Protection, University of Łódź, Poland.
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Abstract
Background Laminitis is considered as the most important cause of hoof lameness in dairy cows, which causes abundant economic losses in husbandry. Through intense efforts in past decades, the etiology of laminitis is preliminarily considered to be subacute ruminal acidosis; however, the pathogenesis of laminitis needs further research. The differentially expressed proteins (DEP) were detected in plasma of healthy cows and clinical laminitis cows by two-dimensional gel electrophoresis (2-DE) and identified by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry. Results Nineteen protein spots were differentially expressed, and 16 kinds of proteins were identified after peptide mass fingerprint search and bioinformatics analysis. Of these, 12 proteins were differentially up-regulated and 4 down-regulated. Overall, these differential proteins were involved in carbohydrate metabolism, lipids metabolism, molecular transport, immune regulation, inflammatory response, oxidative stress and so on. Conclusions The DEPs were closely related to the occurrence and development of laminitis and the lipid metabolic disturbance may be a new pathway to cause laminitis in dairy cows. The results provide the theory foundation for further revealing the mechanism of laminitis and screening the early diagnostic proteins and therapeutic target.
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Yoon K, Kwack SJ, Kim HS, Lee BM. Estrogenic endocrine-disrupting chemicals: molecular mechanisms of actions on putative human diseases. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART B, CRITICAL REVIEWS 2014; 17:127-74. [PMID: 24749480 DOI: 10.1080/10937404.2014.882194] [Citation(s) in RCA: 77] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Endocrine-disrupting chemicals (EDC), including phthalates, bisphenol A (BPA), phytoestrogens such as genistein and daidzein, dichlorodiphenyltrichloroethane (DDT), and 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD), are associated with a variety of adverse health effects in organisms or progeny by altering the endocrine system. Environmental estrogens, including BPA, phthalates, and phytoestrogens, are the most extensively studied and are considered to mimic the actions of endogenous estrogen, 17β-estradiol (E2). Diverse modes of action of estrogen and estrogen receptors (ERα and ERβ) have been described, but the mode of action of estrogenic EDC is postulated to be more complex and needs to be more clearly elucidated. This review examines the adverse effects of estrogenic EDC on male or female reproductive systems and molecular mechanisms underlying EDC effects that modulate ER-mediated signaling. Mechanisms of action for estrogenic EDC may involve both ER-dependent and ER-independent pathways. Recent findings from systems toxicology of examining estrogenic EDC are also discussed.
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Affiliation(s)
- Kyungsil Yoon
- a Lung Cancer Branch , Research Institute, National Cancer Center , Goyang , Gyeonggi-do , South Korea
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14
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Snedeker SM, Hay AG. The Alkylphenols Nonylphenol and Octylphenol in Food Contact Materials and Household Items: Exposure and Health Risk Considerations. MOLECULAR AND INTEGRATIVE TOXICOLOGY 2014. [DOI: 10.1007/978-1-4471-6500-2_5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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15
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Krogenæs AK, Ropstad E, Gutleb AC, Hårdnes N, Berg V, Dahl E, Fowler PA. In utero exposure to environmentally relevant concentrations of PCB 153 and PCB 118 disrupts fetal testis development in sheep. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART A 2014; 77:628-649. [PMID: 24754397 DOI: 10.1080/15287394.2014.887426] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Polychlorinated biphenyls (PCB) are environmental pollutants linked to adverse health effects including endocrine disruption and disturbance of reproductive development. This study aimed to determine whether exposure of pregnant sheep to three different mixtures of PCB 153 and PCB 118 affected fetal testis development. Ewes were treated by oral gavage from mating until euthanasia (d 134), producing three groups of fetuses with distinct adipose tissue PCB levels: high PCB 153/low PCB 118 (n = 13), high PCB 118/low PCB 153 (n = 14), and low PCB 153/low PCB 118 (n = 14). Fetal testes and blood samples were collected for investigation of testosterone, testis morphology, and testis proteome. The body weight of the offspring was lower in the high PCB compared to the low PCB group, but there were no significant differences in testis weight between groups when corrected for body weight. PCB exposure did not markedly affect circulating testosterone. There were no significant differences between groups in number of seminiferous tubules, Sertoli cell only tubules, and ratio between relative areas of seminiferous tubules and interstitium. Two-dimensional (2D) gel-based proteomics was used to screen for proteomic alterations in the high exposed groups relative to low PCB 153/low PCB 118 group. Twenty-six significantly altered spots were identified by liquid chromatography (LC)-mass spectroscopy (MS)/MS. Changes in protein regulation affected cellular processes as stress response, protein synthesis, and cytoskeleton regulation. The study demonstrates that in utero exposure to different environmental relevant PCB mixtures exerted subtle effects on developing fetal testis proteome but did not significantly disturb testis morphology and testosterone production.
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Affiliation(s)
- Anette K Krogenæs
- a Department of Production Animal Sciences , Norwegian School Veterinary Science , Oslo , Norway
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16
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Wang C, Wang CY, Zhao XQ, Chen RF, Lan P, Shen RF. Proteomic analysis of a high aluminum tolerant yeast Rhodotorula taiwanensis RS1 in response to aluminum stress. BIOCHIMICA ET BIOPHYSICA ACTA-PROTEINS AND PROTEOMICS 2013; 1834:1969-75. [DOI: 10.1016/j.bbapap.2013.06.014] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2013] [Revised: 06/17/2013] [Accepted: 06/20/2013] [Indexed: 11/25/2022]
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17
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Yao J, Chen Z, Yang Q, Liu X, Chen X, Zhuang M, Liu Q. Proteomic analysis of aqueous humor from patients with branch retinal vein occlusion-induced macular edema. Int J Mol Med 2013; 32:1421-34. [PMID: 24068204 DOI: 10.3892/ijmm.2013.1509] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2013] [Accepted: 09/17/2013] [Indexed: 11/06/2022] Open
Abstract
The mechanisms responsible for macular edema with branch retinal vein occlusion (BRVO) remain to be elucidated. It is known that the expression profile of certain proteins in the aqueous humor (AH) changes in some diseases. Accordingly, determining the expression of these AH proteins may aid in the understanding of their potential role in this pathogenesis. The aim of this study was to identify the possible mechanisms involved in the development of BRVO-induced macular edema. A proteomic analysis of the AH composition in the eyes of patients with BRVO was performed and compared with that in the eyes of patients with cataract (non-BRVO; controls). AH from 6 patients with macular edema due to BRVO and 6 patients with cataract (non-BRVO) was collected. A proteomic approach which included 2‑dimensional electrophoresis (2‑DE) coupled with mass spectrometry (MS) and bioinformatics analysis were used to identify AH proteins with altered expression in patients with macular edema due to BRVO compared with the controls. An enzyme‑linked immunosorbent assay was used to validate the proteomic results. The total protein concentration in the AH of patients with BRVO-induced macular edema was significantly greater than that of the controls. In the patients with BRVO, a total of 56 protein spots were significantly altered on the 2D gels. A total of 49 protein spots were identified by MS; many of these proteins have been implicated in angiogenesis, oxidative stress and collagen synthesis. In conclusion, the protein composition in AH differed significantly between the patients with BRVO and the controls. The identified proteins may be potential biomarkers for the development of macular edema due to BRVO and may play a role in the mechanisms responsible for it.
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Affiliation(s)
- Jiaqi Yao
- Department of Ophthalmology, Nanjing Children's Hospital Affiliated to Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
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18
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Sun L, Ye Y, Sun H, Yu J, Zhang L, Sun Y, Zhang D, Ma L, Shen B, Zhu C. Identification of proteasome subunit beta type 6 (PSMB6) associated with deltamethrin resistance in mosquitoes by proteomic and bioassay analyses. PLoS One 2013; 8:e65859. [PMID: 23762443 PMCID: PMC3677870 DOI: 10.1371/journal.pone.0065859] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2012] [Accepted: 05/01/2013] [Indexed: 11/25/2022] Open
Abstract
Deltamethrin (DM) insecticides are currently being promoted worldwide for mosquito control, because of the high efficacy, low mammalian toxicity and less environmental impact. Widespread and improper use of insecticides induced resistance, which has become a major obstacle for the insect-borne disease management. Resistance development is a complex and dynamic process involving many genes. To better understand the possible molecular mechanisms involved in DM resistance, a proteomic approach was employed for screening of differentially expressed proteins in DM-susceptible and -resistant mosquito cells. Twenty-seven differentially expressed proteins were identified by two-dimensional electrophoresis (2-DE) and mass spectrometry (MS). Four members of the ubiquitin-proteasome system were significantly elevated in DM-resistant cells, suggesting that the ubiquitin-proteasome pathway may play an important role in DM resistance. Proteasome subunit beta type 6 (PSMB6) is a member of 20S proteasomal subunit family, which forms the proteolytic core of 26S proteasome. We used pharmaceutical inhibitor and molecular approaches to study the contributions of PSMB6 in DM resistance: the proteasome inhibitor MG-132 and bortezomib were used to suppress the proteasomal activity and siRNA was designed to block the function of PSMB6. The results revealed that both MG-132 and bortezomib increased the susceptibility in DM-resistant cells and resistance larvae. Moreover, PSMB6 knockdown decreased cellular viability under DM treatment. Taken together, our study indicated that PSMB6 is associated with DM resistance in mosquitoes and that proteasome inhibitors such as MG-132 or bortezomib are suitable for use as a DM synergist for vector control.
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Affiliation(s)
- Linchun Sun
- Department of Pathogen Biology, Nanjing Medical University, Nanjing, Jiangsu, P. R. China
- Pediatric Research Center, Nanjing Children's Hospital Affiliated to Nanjing Medical University, Nanjing, Jiangsu, P. R. China
| | - Yuting Ye
- Department of Pathogen Biology, Nanjing Medical University, Nanjing, Jiangsu, P. R. China
| | - Haibo Sun
- Department of Pathogen Biology, Nanjing Medical University, Nanjing, Jiangsu, P. R. China
| | - Jing Yu
- Department of Pathogen Biology, Nanjing Medical University, Nanjing, Jiangsu, P. R. China
| | - Li Zhang
- Department of Pathogen Biology, Nanjing Medical University, Nanjing, Jiangsu, P. R. China
- Jiangsu Province Hospital on Integration of Chinese and Western Medicine, Nanjing, Jiangsu, P. R. China
| | - Yan Sun
- Department of Pathogen Biology, Nanjing Medical University, Nanjing, Jiangsu, P. R. China
| | - Donghui Zhang
- Department of Pathogen Biology, Nanjing Medical University, Nanjing, Jiangsu, P. R. China
| | - Lei Ma
- Department of Pathogen Biology, Nanjing Medical University, Nanjing, Jiangsu, P. R. China
| | - Bo Shen
- Department of Pathogen Biology, Nanjing Medical University, Nanjing, Jiangsu, P. R. China
| | - Changliang Zhu
- Department of Pathogen Biology, Nanjing Medical University, Nanjing, Jiangsu, P. R. China
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Li B, He L, Guo S, Li J, Yang Y, Yan B, Sun J, Li J. Proteomics reveal cucumber Spd-responses under normal condition and salt stress. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2013; 67:7-14. [PMID: 23524299 DOI: 10.1016/j.plaphy.2013.02.016] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2012] [Accepted: 02/21/2013] [Indexed: 05/04/2023]
Abstract
To investigate the effects of exogenous Spd on proteomic changes under normal condition and NaCl stress of 3 days in cucumber seedling leaves, a 2-DE gel electrophoresis and MALDI-TOF/TOF MS was performed. A total of 63 differentially expressed proteins responded to salt stress or exogenous Spd treatments, and they were all successfully identified by MALDI-TOF/TOF MS. Many changes were observed in the levels of proteins involved in energy and metabolic pathways, protein metabolic, stress defense, and other functional proteins. Increased salt tolerance by exogenous Spd would contribute to higher expressions of proteins involved in the SAMs metabolism, protein biosynthesis, and defense mechanisms on antioxidant and detoxification. Meanwhile, the regulation of Calvin cycle, protein folding assembly and the inhibition of protein proteolysis by Spd might play important roles in salt tolerance. This study provides insight that may facilitate a better understanding of the salt resistance by Spd in cucumber seedlings.
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Affiliation(s)
- Bin Li
- Key Laboratory of Southern Vegetable Crop Genetic Improvement in Ministry of Agriculture, College of Horticulture, Nanjing Agriculture University, Nanjing 210095, PR China; Nanjing Agricultural University (Suqian), Academy of Protected Horticulture, Jiangsu, Suqian 223800, China
| | - Lizhong He
- Key Laboratory of Southern Vegetable Crop Genetic Improvement in Ministry of Agriculture, College of Horticulture, Nanjing Agriculture University, Nanjing 210095, PR China; Nanjing Agricultural University (Suqian), Academy of Protected Horticulture, Jiangsu, Suqian 223800, China
| | - Shirong Guo
- Key Laboratory of Southern Vegetable Crop Genetic Improvement in Ministry of Agriculture, College of Horticulture, Nanjing Agriculture University, Nanjing 210095, PR China; Nanjing Agricultural University (Suqian), Academy of Protected Horticulture, Jiangsu, Suqian 223800, China.
| | - Jing Li
- Key Laboratory of Southern Vegetable Crop Genetic Improvement in Ministry of Agriculture, College of Horticulture, Nanjing Agriculture University, Nanjing 210095, PR China; Nanjing Agricultural University (Suqian), Academy of Protected Horticulture, Jiangsu, Suqian 223800, China
| | - Yanjuan Yang
- Key Laboratory of Southern Vegetable Crop Genetic Improvement in Ministry of Agriculture, College of Horticulture, Nanjing Agriculture University, Nanjing 210095, PR China; Nanjing Agricultural University (Suqian), Academy of Protected Horticulture, Jiangsu, Suqian 223800, China
| | - Bei Yan
- Key Laboratory of Southern Vegetable Crop Genetic Improvement in Ministry of Agriculture, College of Horticulture, Nanjing Agriculture University, Nanjing 210095, PR China; Nanjing Agricultural University (Suqian), Academy of Protected Horticulture, Jiangsu, Suqian 223800, China
| | - Jin Sun
- Key Laboratory of Southern Vegetable Crop Genetic Improvement in Ministry of Agriculture, College of Horticulture, Nanjing Agriculture University, Nanjing 210095, PR China; Nanjing Agricultural University (Suqian), Academy of Protected Horticulture, Jiangsu, Suqian 223800, China
| | - Juan Li
- Key Laboratory of Southern Vegetable Crop Genetic Improvement in Ministry of Agriculture, College of Horticulture, Nanjing Agriculture University, Nanjing 210095, PR China; Nanjing Agricultural University (Suqian), Academy of Protected Horticulture, Jiangsu, Suqian 223800, China
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20
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Yao J, Liu X, Yang Q, Zhuang M, Wang F, Chen X, Hang H, Zhang W, Liu Q. Proteomic analysis of the aqueous humor in patients with wet age-related macular degeneration. Proteomics Clin Appl 2013; 7:550-60. [PMID: 23418058 DOI: 10.1002/prca.201200012] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2012] [Revised: 12/20/2012] [Accepted: 01/07/2013] [Indexed: 12/12/2022]
Abstract
PURPOSE A number of studies have shown that the levels of some proteins in the aqueous humor (AH) are altered and correlate with the mechanisms or prognosis of many eye diseases. To identify the possible mechanisms that lead to the development of wet age-related macular degeneration (AMD), a proteomic analysis of the AH composition from wet AMD patients was performed and compared with that from non-AMD cataract patients. EXPERIMENTAL DESIGN Six wet AMD and six non-AMD cataract patients were enrolled. A proteomic approach which included two-dimensional electrophoresis coupled with MS and bioinformatics methods were used to identify AH proteins with altered expression in wet AMD compared with non-AMD patients. An ELISA was used to validate the proteomic results. RESULTS We separated 78 protein spots and identified 68 that were differently expressed in the wet AMD group and controls. Numerous proteins identified in this study are implicated in inflammation, apoptosis, angiogenesis, and oxidative stress. CONCLUSIONS AND CLINICAL RELEVANCE The AH protein composition was significantly different between wet AMD and non-AMD patients. The proteins identified in this study may be potential biomarkers of wet AMD development and might play a role in the mechanisms of wet AMD.
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Affiliation(s)
- Jiaqi Yao
- Department of Ophthalmology, Nanjing Children's Hospital Affiliated to Nanjing Medical University, Nanjing, Jiangsu, PR China
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21
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Lu Q, Zhang W, Wang Z, Yu G, Yuan Y, Zhou Y. A facile electrochemical sensor for nonylphenol determination based on the enhancement effect of cetyltrimethylammonium bromide. SENSORS 2013; 13:758-68. [PMID: 23296332 PMCID: PMC3574702 DOI: 10.3390/s130100758] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/08/2012] [Revised: 01/03/2013] [Accepted: 01/04/2013] [Indexed: 01/14/2023]
Abstract
A facile electrochemical sensor for the determination of nonylphenol (NP) was fabricated in this work. Cetyltrimethylammonium bromide (CTAB), which formed a bilayer on the surface of the carbon paste (CP) electrode, displayed a remarkable enhancement effect for the electrochemical oxidation of NP. Moreover, the oxidation peak current of NP at the CTAB/CP electrode demonstrated a linear relationship with NP concentration, which could be applied in the direct determination of NP. Some experimental parameters were investigated, such as external solution pH, mode and time of accumulation, concentration and modification time of CTAB and so on. Under optimized conditions, a wide linear range from 1.0 × 10−7 mol·L−1 to 2.5 × 10−5 mol·L−1 was obtained for the sensor, with a low limit of detection at 1.0 × 10−8 mol·L−1. Several distinguishing advantages of the as-prepared sensor, including facile fabrication, easy operation, low cost and so on, suggest a great potential for its practical applications.
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Affiliation(s)
- Qing Lu
- MOE Key Laboratory of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China.
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Wang CY, Shen RF, Wang C, Wang W. Root protein profile changes induced by Al exposure in two rice cultivars differing in Al tolerance. J Proteomics 2013; 78:281-93. [DOI: 10.1016/j.jprot.2012.09.035] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2012] [Revised: 09/17/2012] [Accepted: 09/26/2012] [Indexed: 11/27/2022]
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Laurindo FRM, Pescatore LA, Fernandes DDC. Protein disulfide isomerase in redox cell signaling and homeostasis. Free Radic Biol Med 2012; 52:1954-69. [PMID: 22401853 DOI: 10.1016/j.freeradbiomed.2012.02.037] [Citation(s) in RCA: 174] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/30/2011] [Revised: 02/23/2012] [Accepted: 02/24/2012] [Indexed: 12/16/2022]
Abstract
Thiol proteins may potentially act as redox signaling adaptor proteins, adjusting reactive oxygen species intermediates to specific signals and redox signals to cell homeostasis. In this review, we discuss redox effects of protein disulfide isomerase (PDI), a thioredoxin superfamily oxidoreductase from the endoplasmic reticulum (ER). Abundantly expressed PDI displays ubiquity, interactions with redox and nonredox proteins, versatile effects, and several posttranslational modifications. The PDI family contains >20 members with at least some apparent complementary actions. PDI has oxidoreductase, isomerase, and chaperone effects, the last not directly dependent on its thiols. PDI is a converging hub for pathways of disulfide bond introduction into ER-processed proteins, via hydrogen peroxide-generating mechanisms involving the oxidase Ero1α, as well as hydrogen peroxide-consuming reactions involving peroxiredoxin IV and the novel peroxidases Gpx7/8. PDI is a candidate pathway for coupling ER stress to oxidant generation. Emerging information suggests a convergence between PDI and Nox family NADPH oxidases. PDI silencing prevents Nox responses to angiotensin II and inhibits Akt phosphorylation in vascular cells and parasite phagocytosis in macrophages. PDI overexpression spontaneously enhances Nox activation and expression. In neutrophils, PDI redox-dependently associates with p47phox and supports the respiratory burst. At the cell surface, PDI exerts transnitrosation, thiol reductase, and apparent isomerase activities toward targets including adhesion and matrix proteins and proteases. Such effects mediate redox-dependent adhesion, coagulation/thrombosis, immune functions, and virus internalization. The route of PDI externalization remains elusive. Such multiple redox effects of PDI may contribute to its conspicuous expression and functional role in disease, rendering PDI family members putative redox cell signaling adaptors.
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Affiliation(s)
- Francisco R M Laurindo
- Vascular Biology Laboratory, Heart Institute (InCor), University of São Paulo School of Medicine, 05403-000 São Paulo, Brazil.
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Christophersen OA. Radiation protection following nuclear power accidents: a survey of putative mechanisms involved in the radioprotective actions of taurine during and after radiation exposure. MICROBIAL ECOLOGY IN HEALTH AND DISEASE 2012; 23:14787. [PMID: 23990836 PMCID: PMC3747764 DOI: 10.3402/mehd.v23i0.14787] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 11/18/2011] [Accepted: 11/18/2011] [Indexed: 12/28/2022]
Abstract
There are several animal experiments showing that high doses of ionizing radiation lead to strongly enhanced leakage of taurine from damaged cells into the extracellular fluid, followed by enhanced urinary excretion. This radiation-induced taurine depletion can itself have various harmful effects (as will also be the case when taurine depletion is due to other causes, such as alcohol abuse or cancer therapy with cytotoxic drugs), but taurine supplementation has been shown to have radioprotective effects apparently going beyond what might be expected just as a consequence of correcting the harmful consequences of taurine deficiency per se. The mechanisms accounting for the radioprotective effects of taurine are, however, very incompletely understood. In this article an attempt is made to survey various mechanisms that potentially might be involved as parts of the explanation for the overall beneficial effect of high levels of taurine that has been found in experiments with animals or isolated cells exposed to high doses of ionizing radiation. It is proposed that taurine may have radioprotective effects by a combination of several mechanisms: (1) during the exposure to ionizing radiation by functioning as an antioxidant, but perhaps more because it counteracts the prooxidant catalytic effect of iron rather than functioning as an important scavenger of harmful molecules itself, (2) after the ionizing radiation exposure by helping to reduce the intensity of the post-traumatic inflammatory response, and thus reducing the extent of tissue damage that develops because of severe inflammation rather than as a direct effect of the ionizing radiation per se, (3) by functioning as a growth factor helping to enhance the growth rate of leukocytes and leukocyte progenitor cells and perhaps also of other rapidly proliferating cell types, such as enterocyte progenitor cells, which may be important for immunological recovery and perhaps also for rapid repair of various damaged tissues, especially in the intestines, and (4) by functioning as an antifibrogenic agent. A detailed discussion is given of possible mechanisms involved both in the antioxidant effects of taurine, in its anti-inflammatory effects and in its role as a growth factor for leukocytes and nerve cells, which might be closely related to its role as an osmolyte important for cellular volume regulation because of the close connection between cell volume regulation and the regulation of protein synthesis as well as cellular protein degradation. While taurine supplementation alone would be expected to exert a therapeutic effect far better than negligible in patients that have been exposed to high doses of ionizing radiation, it may on theoretical grounds be expected that much better results may be obtained by using taurine as part of a multifactorial treatment strategy, where it may interact synergistically with several other nutrients, hormones or other drugs for optimizing antioxidant protection and minimizing harmful posttraumatic inflammatory reactions, while using other nutrients to optimize DNA and tissue repair processes, and using a combination of good diet, immunostimulatory hormones and perhaps other nontoxic immunostimulants (such as beta-glucans) for optimizing the recovery of antiviral and antibacterial immune functions. Similar multifactorial treatment strategies may presumably be helpful in several other disease situations (including severe infectious diseases and severe asthma) as well as for treatment of acute intoxications or acute injuries (both mechanical ones and severe burns) where severely enhanced oxidative and/or nitrative stress and/or too much secretion of vasodilatory neuropeptides from C-fibres are important parts of the pathogenetic mechanisms that may lead to the death of the patient. Some case histories (with discussion of some of those mechanisms that may have been responsible for the observed therapeutic outcome) are given for illustration of the likely validity of these concepts and their relevance both for treatment of severe infections and non-infectious inflammatory diseases such as asthma and rheumatoid arthritis.
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Shi LN, Li FQ, Huang M, Lu JF, Kong XX, Wang SQ, Shao HF. Immunoproteomics based identification of thioredoxin reductase GliT and novel Aspergillus fumigatus antigens for serologic diagnosis of invasive aspergillosis. BMC Microbiol 2012; 12:11. [PMID: 22251604 PMCID: PMC3398318 DOI: 10.1186/1471-2180-12-11] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2011] [Accepted: 01/18/2012] [Indexed: 01/14/2023] Open
Abstract
Background There has been a rising incidence of invasive aspergillosis (IA) in critically ill patients, even in the absence of an apparent predisposing immunodeficiency. The diagnosis of IA is difficult because clinical signs are not sensitive and specific, and serum galactomannan has relatively low sensitivity in this group of patients. Therefore, more prompt and accurate disease markers for early diagnosis are needed. To establish disease markers demands a thorough knowledge of fungal antigens which may be detected in the serum or other body fluids of patients. Herein we report novel immunodominant antigens identified from extracellular proteins of Aspergillus fumigatus. Results Extracellular proteins of A. fumigatus were separated by two-dimensional electrophoresis (2-DE) and probed with the sera from critically ill patients with proven IA. The immunoreactive protein spots were identified by MALDI-TOF mass spectrometry (MALDI-TOF -MS). Forty spots from 2DE gels were detected and 17 different proteins were identified as immunogenic in humans. Function annotation revealed that most of these proteins were metabolic enzymes involved in carbohydrate, fatty acid, amino acid, and energy metabolism. One of the proteins, thioredoxin reductase GliT (TR), which showed the best immunoactivity, was analyzed further for secretory signals, protein localization, and homology. The results indicated that TR is a secretory protein with a signal sequence exhibiting a high probability for secretion. Furthermore, TR did not match any human proteins, and had low homology with most other fungi. The recombinant TR was recognized by the sera of all proven IA patients with different underlying diseases in this study. Conclusions The immunoreactive proteins identified in this study may be helpful for the diagnosis of IA in critically ill patients. Our results indicate that TR and other immunodominant antigens have potential as biomarkers for the serologic diagnosis of invasive aspergillosis.
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Affiliation(s)
- Li-ning Shi
- Laboratory of Molecular Biology, Institute of Medical Laboratory Sciences, Jinling Hospital, School of Medicine, Nanjing University, 305 East Zhongshan Road, Nanjing 210002, PR China
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Wu J, Wang X, Ying F, Hu G, Wang X, Li D, Yu H, Han X. In vitro assessment of reproductive toxicity on rats induced by organic contaminants of source water. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2011; 74:1756-1764. [PMID: 21496922 DOI: 10.1016/j.ecoenv.2011.03.016] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2010] [Revised: 03/19/2011] [Accepted: 03/21/2011] [Indexed: 05/30/2023]
Abstract
The safety of drinking water attracts more and more attention these years. This study focused on the reproductive toxicity of source water in Jiangsu Province, China. The organic contaminants of source water are capable of bioaccumulating and cause health effects on human beings. The toxicological tests on Spermatogenic cells, Sertoli cells and Leydig cells of male rats showed that source water extracts can reduce testicular cells membrane integrity and depress cell viability significantly. Among these testicular cells, Leydig cells are most sensitive to organic contaminants and the testosterone secretion of Leydig cells is evidently disturbed correspondingly. The phenols in the source water may be chiefly responsible for the reproductive toxicity. These data indicated that chronic reproductive toxicity of source water cannot be overlooked and action should be taken to protect human health from the threat of organic pollution of source water.
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Affiliation(s)
- Jiang Wu
- Immunology and Reproductive Biology Laboratory, Medical School, Nanjing University, Nanjing 210093, PR China
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Combined effects of two environmental endocrine disruptors nonyl phenol and di-n-butyl phthalate on rat Sertoli cells in vitro. Reprod Toxicol 2010; 30:438-45. [DOI: 10.1016/j.reprotox.2010.06.003] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2010] [Revised: 05/17/2010] [Accepted: 06/16/2010] [Indexed: 11/22/2022]
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Deng P, Zhong D, Nan F, Liu S, Li D, Yuan T, Chen X, Zheng J. Evidence for the bioactivation of 4-nonylphenol to quinone methide and ortho-benzoquinone metabolites in human liver microsomes. Chem Res Toxicol 2010; 23:1617-28. [PMID: 20843008 DOI: 10.1021/tx100223h] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
4-Nonylphenol (4-NP) is a well-known toxic environmental contaminant. The major objective of the present study was to identify reactive metabolites of 4-NP. Following incubations of 4-NP with NADPH- and GSH-supplemented human liver microsomes, 6 GSH conjugates, along with 19 oxidized metabolites, were detected by UPLC/Q-TOF mass spectrometry utilizing the mass defect filter method. Several authentic key metabolite standards were chemically synthesized for structural identification. Three GSH conjugates were found to derive from quinone methide intermediates, and the other three resulted from ortho-benzoquinone intermediates. Conjugation of the quinone methides with GSH produced benzylic-orientated GSH conjugates by 1,6-addition, while the reaction of the ortho-benzoquinone intermediates offered aromatic-orientated GSH conjugates. The conversion of 4-NP to the quinone methides and ortho-hydroquinones required cytochromes P450, specifically CYPs1A2, 2C19, 2D6, 2E1, and 3A4, while the oxidation of ortho-benzohydroquinones to the corresponding benzoquinones was apparently independent of microsomal enzymes. The ortho-benzoquinone derived from 4-NP was isomerized to the corresponding hydroxyquinone methide, and the former dominated the latter at a rate of approximately 20:1. The findings of the quinone methide and benzoquinone metabolites intensified the concern on the impact of 4-NP exposure on human health.
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Affiliation(s)
- Pan Deng
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China
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Kedracka-Krok S, Fic E, Jankowska U, Jaciuk M, Gruca P, Papp M, Kusmider M, Solich J, Debski J, Dadlez M, Dziedzicka-Wasylewska M. Effect of chronic mild stress and imipramine on the proteome of the rat dentate gyrus. J Neurochem 2010; 113:848-59. [DOI: 10.1111/j.1471-4159.2010.06652.x] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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Wang X, Shi W, Wu J, Hao Y, Hu G, Liu H, Han X, Yu H. Reproductive toxicity of organic extracts from petrochemical plant effluents discharged to the Yangtze River, China. J Environ Sci (China) 2010; 22:297-303. [PMID: 20397421 DOI: 10.1016/s1001-0742(09)60108-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Water pollution of the Yangtze River in China became one of challenges that the government is facing today. Increasing numbers of petrochemical plants were built along the river in past decades, and numbers of organic chemicals were discharged into the river. Our goal was to establish in vitro system on rat sertoli cells, spermatogenic cells and leydig cells to investigate the reproductive toxicity potential induced by organic extracts from petrochemical effluents. Our results showed that the organic extract depressed the viability (p < 0.01) and destroyed the plasma membrane integrity of sertoli cells and spermatogenic cells to a certain degree. Accordingly, proportion of early apoptotic sertoli cells and late apoptotic spermatogenic cells increased significantly. Although significant morphological changes were not detected for leydig cells, the extract was observed to inhibit their testosterone production (p < 0.01). Sertoli cells and spermatogenic cells appeared to be more sensitive and maybe the main targets of the key toxins. Theseresults suggested that the in vitro system on rat testicular cells may be useful to predicate reproductive toxicity potential of organic extracts from petrochemical effluents. More attention should be paid to the petrochemical effluents, because long-term accumulation of these organic compounds in organisms may cause spermatogenesis malfunction and testosterone reduction.
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Affiliation(s)
- Xiaoyi Wang
- The State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210093, China.
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