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Effects of Different Green Tea Extracts on Chronic Alcohol Induced-Fatty Liver Disease by Ameliorating Oxidative Stress and Inflammation in Mice. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2021:5188205. [PMID: 35003517 PMCID: PMC8731271 DOI: 10.1155/2021/5188205] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/18/2021] [Revised: 10/06/2021] [Accepted: 12/05/2021] [Indexed: 12/20/2022]
Abstract
Alcoholic fatty liver disease (AFLD) is a common chronic liver disease and has become a critical global public health problem. Green tea is a popular drink worldwide and contains several bioactive compounds. Different green teas could contain diverse compounds and possess distinct bioactivities. In the present study, the effects of 10 green teas on chronic alcohol induced-fatty liver disease in mice were explored and compared. The results showed that several green teas significantly reduced triacylglycerol levels in serum and liver as well as the aminotransferase activities in mice at a dose of 200 mg/kg, suggesting that they possess hepatoprotective effects. Moreover, several green teas remarkably decreased the expression of cytochrome P450 2E1, the levels of malondialdehyde and 4-hydroxynonenoic acid, and the contents of proinflammatory cytokines, indicating that they could alleviate oxidation damage and inflammation induced by chronic alcohol exposure. In addition, Seven Star Matcha Tea and Selenium-Enriched Matcha Tea could increase glutathione level. Furthermore, the main phytochemical components in green teas were determined and quantified by high-performance liquid chromatography, and the correlation analysis showed that gallic acid, gallocatechin, catechin, chlorogenic acid, and epigallocatechin gallate might at least partially contribute to protective effects on AFLD. In conclusion, Selenium-Enriched Chaoqing Green Tea, Xihu Longjing Tea, Taiping Houkui Tea, and Selenium-Enriched Matcha Tea showed the strongest preventive effects on AFLD. This research also provides the public with new insights about the effects of different green teas on AFLD.
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Sun X, Ho JE, Gao H, Evangelou E, Yao C, Huan T, Hwang SJ, Courchesne P, Larson MG, Levy D, Ma J, Liu C. Associations of Alcohol Consumption with Cardiovascular Disease-Related Proteomic Biomarkers: The Framingham Heart Study. J Nutr 2021; 151:2574-2582. [PMID: 34159370 PMCID: PMC8417922 DOI: 10.1093/jn/nxab186] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 03/10/2021] [Accepted: 05/17/2021] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Alcohol consumption and cardiovascular disease (CVD) have a complex relation. OBJECTIVES We examined the associations between alcohol consumption, fasting plasma proteins, and CVD risk. METHODS We performed cross-sectional association analyses of alcohol consumption with 71 CVD-related plasma proteins, and also performed prospective association analyses of alcohol consumption and protein concentrations with 3 CVD risk factors (obesity, hypertension, and diabetes) in 6745 Framingham Heart Study (FHS) participants (mean age 49 y; 53% women). RESULTS A unit increase in log10 transformed alcohol consumption (g/d) was associated with an increased risk of hypertension (HR = 1.14; 95% CI: 1.04, 1.26; P = 0.007), and decreased risks of obesity (HR = 0.80; 95% CI: 0.71, 0.91; P = 4.6 × 10-4) and diabetes (HR: 0.68; 95% CI: 0.58, 0.80; P = 5.1 × 10-6) in a median of 13-y (interquartile = 7, 14) of follow-up. We identified 43 alcohol-associated proteins in a discovery sample (n = 4348, false discovery rate <0.05) and 20 of them were significant (P <0.05/43) in an independent validation sample (n = 2397). Eighteen of the 20 proteins were inversely associated with alcohol consumption. Four of the 20 proteins demonstrated 3-way associations, as expected, with alcohol consumption and CVD risk factors. For example, a greater concentration of APOA1 was associated with higher alcohol consumption (P = 1.2 × 10-65), and it was also associated with a lower risk of diabetes (P = 8.5 × 10-6). However, several others showed unexpected 3-way associations. CONCLUSIONS We identified 20 alcohol-associated proteins in 6745 FHS samples. These alcohol-associated proteins demonstrated complex relations with the 3 CVD risk factors. Future studies with integration of more proteomic markers and larger sample size are warranted to unravel the complex relation between alcohol consumption and CVD risk.
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Affiliation(s)
- Xianbang Sun
- Department of Biostatistics, School of Public Health, Boston University, Boston, MA, USA
| | - Jennifer E Ho
- Division of Cardiology, Department of Medicine and Cardiovascular Research Center, Massachusetts General Hospital, Boston, MA, USA,Harvard Medical School, Boston, MA, USA
| | - He Gao
- Department of Epidemiology and Biostatistics, Imperial College London, London, United Kingdom
| | - Evangelos Evangelou
- Department of Epidemiology and Biostatistics, Imperial College London, London, United Kingdom,Department of Hygiene and Epidemiology, University of Ioannina Medical School, Ioannina, Greece
| | - Chen Yao
- Framingham Heart Study, National Heart, Lung, and Blood Institute, Framingham, MA, USA,Population Sciences Branch, National Heart, Lung, and Blood Institute, NIH, Bethesda, MD, USA
| | - Tianxiao Huan
- Framingham Heart Study, National Heart, Lung, and Blood Institute, Framingham, MA, USA,Population Sciences Branch, National Heart, Lung, and Blood Institute, NIH, Bethesda, MD, USA
| | - Shih-Jen Hwang
- Framingham Heart Study, National Heart, Lung, and Blood Institute, Framingham, MA, USA,Population Sciences Branch, National Heart, Lung, and Blood Institute, NIH, Bethesda, MD, USA
| | - Paul Courchesne
- Framingham Heart Study, National Heart, Lung, and Blood Institute, Framingham, MA, USA,Population Sciences Branch, National Heart, Lung, and Blood Institute, NIH, Bethesda, MD, USA
| | - Martin G Larson
- Department of Biostatistics, School of Public Health, Boston University, Boston, MA, USA,Framingham Heart Study, National Heart, Lung, and Blood Institute, Framingham, MA, USA
| | - Daniel Levy
- Framingham Heart Study, National Heart, Lung, and Blood Institute, Framingham, MA, USA,Population Sciences Branch, National Heart, Lung, and Blood Institute, NIH, Bethesda, MD, USA
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Lu S, Xiong Q, Du K, Gan X, Wang X, Yang L, Wang Y, Ge F, He S. Comparative iTRAQ proteomics revealed proteins associated with lobed fin regeneration in Bichirs. Proteome Sci 2019; 17:6. [PMID: 31832023 PMCID: PMC6869209 DOI: 10.1186/s12953-019-0153-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2018] [Accepted: 10/09/2019] [Indexed: 11/23/2022] Open
Abstract
Background Polypterus senegalus can fully regenerate its pectoral lobed fins, including a complex endoskeleton, with remarkable precision. However, despite the enormous potential of this species for use in medical research, its regeneration mechanisms remain largely unknown. Methods To identify the differentially expressed proteins (DEPs) during the early stages of lobed fin regeneration in P. senegalus, we performed a differential proteomic analysis using isobaric tag for relative and absolute quantitation (iTRAQ) approach based quantitative proteome from the pectoral lobed fins at 3 time points. Furthermore, we validated the changes in protein expression with multiple-reaction monitoring (MRM) analysis. Results The experiment yielded a total of 3177 proteins and 15,091 unique peptides including 1006 non-redundant (nr) DEPs. Of these, 592 were upregulated while 349 were downregulated after lobed fin amputation when compared to the original tissue. Bioinformatics analyses showed that the DEPs were mainly associated with Ribosome and RNA transport, metabolic, ECM-receptor interaction, Golgi and endoplasmic reticulum, DNA replication, and Regulation of actin cytoskeleton. Conclusions To our knowledge, this is the first proteomic research to investigate alterations in protein levels and affected pathways in bichirs’ lobe-fin/limb regeneration. In addition, our study demonstrated a highly dynamic regulation during lobed fin regeneration in P. senegalus. These results not only provide a comprehensive dataset on differentially expressed proteins during the early stages of lobe-fin/limb regeneration but also advance our understanding of the molecular mechanisms underlying lobe-fin/limb regeneration.
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Affiliation(s)
- Suxiang Lu
- 1Key Laboratory of Aquatic Biodiversity and Conservation of the Chinese Academy of Sciences, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072 Hubei China.,2Present address: Medical College of Pingdingshan University, Pingdingshan, 467000 Henan Province China
| | - Qian Xiong
- 3Key Laboratory of Algal Biology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072 Hubei China
| | - Kang Du
- 1Key Laboratory of Aquatic Biodiversity and Conservation of the Chinese Academy of Sciences, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072 Hubei China
| | - Xiaoni Gan
- 1Key Laboratory of Aquatic Biodiversity and Conservation of the Chinese Academy of Sciences, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072 Hubei China
| | - Xuzhen Wang
- 1Key Laboratory of Aquatic Biodiversity and Conservation of the Chinese Academy of Sciences, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072 Hubei China
| | - Liandong Yang
- 1Key Laboratory of Aquatic Biodiversity and Conservation of the Chinese Academy of Sciences, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072 Hubei China
| | - Ying Wang
- 1Key Laboratory of Aquatic Biodiversity and Conservation of the Chinese Academy of Sciences, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072 Hubei China
| | - Feng Ge
- 3Key Laboratory of Algal Biology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072 Hubei China
| | - Shunping He
- 1Key Laboratory of Aquatic Biodiversity and Conservation of the Chinese Academy of Sciences, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072 Hubei China
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Li Y, Li Y, Jin W, Sharpton TJ, Mackie RI, Cann I, Cheng Y, Zhu W. Combined Genomic, Transcriptomic, Proteomic, and Physiological Characterization of the Growth of Pecoramyces sp. F1 in Monoculture and Co-culture With a Syntrophic Methanogen. Front Microbiol 2019; 10:435. [PMID: 30894845 PMCID: PMC6414434 DOI: 10.3389/fmicb.2019.00435] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2018] [Accepted: 02/19/2019] [Indexed: 11/13/2022] Open
Abstract
In this study, the effects of a syntrophic methanogen on the growth of Pecoramyces sp. F1 was investigated by characterizing fermentation profiles, as well as functional genomic, transcriptomic, and proteomic analysis. The estimated genome size, GC content, and protein coding regions of strain F1 are 106.83 Mb, 16.07%, and 23.54%, respectively. Comparison of the fungal monoculture with the methanogen co-culture demonstrated that during the fermentation of glucose, the co-culture initially expressed and then down-regulated a large number of genes encoding both enzymes involved in intermediate metabolism and plant cell wall degradation. However, the number of up-regulated proteins doubled at the late-growth stage in the co-culture. In addition, we provide a mechanistic understanding of the metabolism of this fungus in co-culture with a syntrophic methanogen. Further experiments are needed to explore this interaction during degradation of more complex plant cell wall substrates.
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Affiliation(s)
- Yuanfei Li
- Laboratory of Gastrointestinal Microbiology, National Center for International Research on Animal Gut Nutrition, Nanjing Agricultural University, Nanjing, China
| | - Yuqi Li
- Laboratory of Gastrointestinal Microbiology, National Center for International Research on Animal Gut Nutrition, Nanjing Agricultural University, Nanjing, China
| | - Wei Jin
- Laboratory of Gastrointestinal Microbiology, National Center for International Research on Animal Gut Nutrition, Nanjing Agricultural University, Nanjing, China.,Joint International Research Laboratory of Animal Health and Food Safety, Nanjing Agricultural University, Nanjing, China
| | - Thomas J Sharpton
- Department of Microbiology - Department of Statistics, Oregon State University, Corvallis, OR, United States
| | - Roderick I Mackie
- Department of Animal Sciences, University of Illinois at Urbana-Champaign, Champaign, IL, United States
| | - Isaac Cann
- Department of Animal Sciences, University of Illinois at Urbana-Champaign, Champaign, IL, United States.,Department of Microbiology, University of Illinois at Urbana-Champaign, Champaign, IL, United States.,Division of Nutritional Sciences, University of Illinois at Urbana-Champaign, Champaign, IL, United States.,Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Champaign, IL, United States
| | - Yanfen Cheng
- Laboratory of Gastrointestinal Microbiology, National Center for International Research on Animal Gut Nutrition, Nanjing Agricultural University, Nanjing, China.,Joint International Research Laboratory of Animal Health and Food Safety, Nanjing Agricultural University, Nanjing, China
| | - Weiyun Zhu
- Laboratory of Gastrointestinal Microbiology, National Center for International Research on Animal Gut Nutrition, Nanjing Agricultural University, Nanjing, China.,Joint International Research Laboratory of Animal Health and Food Safety, Nanjing Agricultural University, Nanjing, China
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Li X, Zhang Y, Jin Q, Xia KL, Jiang M, Cui BW, Wu YL, Song SZ, Lian LH, Nan JX. Liver kinase B1/AMP-activated protein kinase-mediated regulation by gentiopicroside ameliorates P2X7 receptor-dependent alcoholic hepatosteatosis. Br J Pharmacol 2018; 175:1451-1470. [PMID: 29338075 DOI: 10.1111/bph.14145] [Citation(s) in RCA: 66] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2017] [Revised: 12/19/2017] [Accepted: 12/22/2017] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND AND PURPOSE Regulating P2X7 receptor-mediated activation of NLRP3 inflammasomes could be a therapeutic strategy to treat alcoholic hepatosteatosis. We investigated whether this process was modulated by gentiopicroside, the main active secoiridoid glycoside from Gentiana manshurica Kitagawa. EXPERIMENTAL APPROACH In vivo models of acute and chronic alcoholic hepatosteatosis were established by intragastrically administered ethanol or using chronic plus binge ethanol feeding of Lieber-DeCarli liquid diet to male C57BL/6 mice. In vitro, HepG2 cells were treated with ethanol. RAW 264.7 macrophages and murine bone marrow-derived macrophages (BMDMs) were stimulated with LPS and ATP. KEY RESULTS In both the acute and chronic alcohol-induced mouse hepatosteatosis models, gentiopicroside decreased serum aminotransferases and triglyceride accumulation. Up-regulated SREBP1, down-regulated PPARα and phosphorylated acetyl-CoA carboxylase caused by acute and chronic alcohol feeding were modulated by gentiopicroside, through the elevation of LKB1 and AMPK. Suppression of P2X7 receptor-NLRP3 activation by gentiopicroside inhibited IL-1β production. In ethanol-exposed HepG2 cells, gentiopicroside reduced lipogenesis and promoted lipid oxidation via activation of P2X7 receptor-NLRP3 inflammasomes. Genetic or pharmacological blockade of P2X7 receptors enhanced AMPK activity and reduced SREBP1 expression in ethanol-treated HepG2 cells. Gentiopicroside down-regulated P2X7 receptor-mediated inflammatory responses in LPS/ATP-stimulated RAW 264.7 macrophages and BMDMs. IL-1β from macrophages accelerated lipid accumulation in hepatocytes. Depleting macrophages by clodronate liposomes ameliorated alcoholic hepatosteatosis, and it was further alleviated by gentiopicroside. CONCLUSIONS AND IMPLICATIONS Activation of LKB1/AMPK signalling by gentiopicroside was mediated by the P2X7 receptor-NLRP3 inflammasome, suggesting the therapeutic value of blocking P2X7 receptors in the treatment of alcoholic hepatosteatosis.
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Affiliation(s)
- Xia Li
- Key Laboratory for Natural Resource of Changbai Mountain and Functional Molecules, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, Jilin Province, 133002, China
| | - Yu Zhang
- Key Laboratory for Natural Resource of Changbai Mountain and Functional Molecules, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, Jilin Province, 133002, China
| | - Quan Jin
- Key Laboratory for Natural Resource of Changbai Mountain and Functional Molecules, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, Jilin Province, 133002, China
| | - Kai-Li Xia
- Key Laboratory for Natural Resource of Changbai Mountain and Functional Molecules, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, Jilin Province, 133002, China
| | - Min Jiang
- Key Laboratory for Natural Resource of Changbai Mountain and Functional Molecules, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, Jilin Province, 133002, China
| | - Ben-Wen Cui
- Key Laboratory for Natural Resource of Changbai Mountain and Functional Molecules, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, Jilin Province, 133002, China
| | - Yan-Ling Wu
- Key Laboratory for Natural Resource of Changbai Mountain and Functional Molecules, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, Jilin Province, 133002, China
| | - Shun-Zong Song
- Key Laboratory for Natural Resource of Changbai Mountain and Functional Molecules, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, Jilin Province, 133002, China
| | - Li-Hua Lian
- Key Laboratory for Natural Resource of Changbai Mountain and Functional Molecules, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, Jilin Province, 133002, China
| | - Ji-Xing Nan
- Key Laboratory for Natural Resource of Changbai Mountain and Functional Molecules, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, Jilin Province, 133002, China.,Clinical Research Center, Yanbian University Hospital, Yanji, Jilin Province, 133002, China
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Zhao H, Du H, Liu M, Gao S, Li N, Chao Y, Li R, Chen W, Lou Z, Dong X. Integrative Proteomics-Metabolomics Strategy for Pathological Mechanism of Vascular Depression Mouse Model. J Proteome Res 2017; 17:656-669. [PMID: 29190102 DOI: 10.1021/acs.jproteome.7b00724] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Vascular depression (VD), a subtype of depression, is caused by vascular diseases or cerebrovascular risk factors. Recently, the proportion of VD patients has increased significantly, which severely affects their quality of life. However, the current pathogenesis of VD has not yet been fully understood, and the basic research is not adequate. In this study, on the basis of the combination of LC-MS-based proteomics and metabolomics, we aimed to establish a protein metabolism regulatory network in a murine VD model to elucidate a more comprehensive impact of VD on organisms. We detected 44 metabolites and 304 proteins with different levels in the hippocampus samples from VD mice using a combination of metabolomic and proteomics analyses with an isobaric tags for relative and absolute quantification (iTRAQ) method. We constructed a protein-to-metabolic regulatory network by correlating and integrating the differential metabolites and proteins using ingenuity pathway analysis. Then we quantitatively validated the levels of the bimolecules shown in the bioinformatics analysis using LC-MS/MS and Western blotting. Validation results suggested changes in the regulation of neuroplasticity, transport of neurotransmitters, neuronal cell proliferation and apoptosis, and disorders of amino acids, lipids and energy metabolism. These proteins and metabolites involved in these dis-regulated pathways will provide a more targeted and credible direction to study the mechanism of VD. Therefore, this paper presents an approach and strategy that was applied in integrative proteomics and metabolomics for research and screening potential targets and biomarkers of VD, which could be more precise and credible in a field lacking adequate basic research.
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Affiliation(s)
- Hongxia Zhao
- School of Pharmacy, Second Military Medical University , Shanghai 200433, China
| | - Hongli Du
- Department of Pharmacy, Eastern Hepatobiliary Surgery Hospital , Shanghai 200433, China
| | - Min Liu
- Pharmacy Department of Changhai Hospital, Second Military Medical University , Shanghai 200433, China
| | - Songyan Gao
- School of Pharmacy, Second Military Medical University , Shanghai 200433, China
| | - Na Li
- School of Pharmacy, Second Military Medical University , Shanghai 200433, China
| | - Yufan Chao
- School of Pharmacy, Second Military Medical University , Shanghai 200433, China
| | - Ruiqing Li
- School of Life Sciences and Technology, Shanghai Tech University , Shanghai 200433, China
| | - Wei Chen
- Changhai Hospital, Second Military Medical University , Shanghai 200433, China
| | - Ziyang Lou
- School of Pharmacy, Second Military Medical University , Shanghai 200433, China
| | - Xin Dong
- School of Pharmacy, Second Military Medical University , Shanghai 200433, China
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Wang W, Yi M, Zhang R, Li J, Chen S, Cai J, Zeng Z, Li X, Xiong W, Wang L, Li G, Xiang B. Vimentin is a crucial target for anti-metastasis therapy of nasopharyngeal carcinoma. Mol Cell Biochem 2017; 438:47-57. [PMID: 28744809 DOI: 10.1007/s11010-017-3112-z] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2017] [Accepted: 07/01/2017] [Indexed: 12/23/2022]
Abstract
Nasopharyngeal carcinoma (NPC) is a unique subtype of head and neck cancer, with tendency to spread to regional lymph nodes and distant organs at early stage. Vimentin, a major cytoskeletal protein constituent of the intermediate filament, plays a critical role in the epithelial-mesenchymal transition. Overexpression of vimentin is considered to be a critical prerequisite for metastasis in numerous human cancers. Therefore, targeting vimentin for cancer therapy has gained a lot of interest. In the present study, we detected vimentin expression in NPC tissues and found that overexpression of vimentin is associated with poor prognosis of NPC patients. Silencing of vimentin in NPC CNE2 cells by RNAi suppresses cells migration and invasion in vitro. However, blocking vimentin did not affect cell proliferation of CNE2 cells. In addition, the in vivo metastatic potential of CNE2 cells transfected with Vimentin shRNA was suppressed in a nude mouse model of pulmonary metastasis. Silencing of Vimentin in CNE2 cells leads to a decrease of microvessel density and VEGF, CD31, MMP2, and MMP9 expressions in pulmonary metastatic tumors. Importantly, we found that it is easier for the tumor cells from the high vimentin-expressing pulmonary metastatic tumors to reinvade the microvessel and to form stable tumor plaques attached to the endothelial cells, which resemble the resource of circulating tumor cells and are very hard to eliminate. However, depletion of vimentin inhibits the formation of vascular tumor plaques. Our findings suggest that RNAi-based vimentin silencing may be a potential and promising anti-metastatic therapeutic strategy for NPC.
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Affiliation(s)
- Wei Wang
- The Key Laboratory of Carcinogenesis of the Chinese Ministry of Health, Xiangya Hospital, Central South University, Changsha, 410078, Hunan, China.,Department of Pathology, Affiliated Hospital of Jining Medical University, Jining, 272029, Shandong, China
| | - Mei Yi
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China
| | - Renya Zhang
- Department of Pathology, Affiliated Hospital of Jining Medical University, Jining, 272029, Shandong, China
| | - Junjun Li
- The Key Laboratory of Carcinogenesis of the Chinese Ministry of Health, Xiangya Hospital, Central South University, Changsha, 410078, Hunan, China.,Cancer Research Institute, Xiangya School of Medicine, Central South University, Changsha, 410078, Hunan, China
| | - Shengnan Chen
- The Key Laboratory of Carcinogenesis of the Chinese Ministry of Health, Xiangya Hospital, Central South University, Changsha, 410078, Hunan, China.,Cancer Research Institute, Xiangya School of Medicine, Central South University, Changsha, 410078, Hunan, China
| | - Jing Cai
- The Key Laboratory of Carcinogenesis of the Chinese Ministry of Health, Xiangya Hospital, Central South University, Changsha, 410078, Hunan, China.,Cancer Research Institute, Xiangya School of Medicine, Central South University, Changsha, 410078, Hunan, China
| | - Zhaoyang Zeng
- The Key Laboratory of Carcinogenesis of the Chinese Ministry of Health, Xiangya Hospital, Central South University, Changsha, 410078, Hunan, China.,Cancer Research Institute, Xiangya School of Medicine, Central South University, Changsha, 410078, Hunan, China
| | - Xiaoling Li
- The Key Laboratory of Carcinogenesis of the Chinese Ministry of Health, Xiangya Hospital, Central South University, Changsha, 410078, Hunan, China.,Cancer Research Institute, Xiangya School of Medicine, Central South University, Changsha, 410078, Hunan, China
| | - Wei Xiong
- The Key Laboratory of Carcinogenesis of the Chinese Ministry of Health, Xiangya Hospital, Central South University, Changsha, 410078, Hunan, China.,Cancer Research Institute, Xiangya School of Medicine, Central South University, Changsha, 410078, Hunan, China
| | - Li Wang
- Department of Thoracic Surgery, The Second Xiangya Hospital of Central South University, Changsha, 410008, Hunan, China
| | - Guiyuan Li
- The Key Laboratory of Carcinogenesis of the Chinese Ministry of Health, Xiangya Hospital, Central South University, Changsha, 410078, Hunan, China.,Cancer Research Institute, Xiangya School of Medicine, Central South University, Changsha, 410078, Hunan, China
| | - Bo Xiang
- The Key Laboratory of Carcinogenesis of the Chinese Ministry of Health, Xiangya Hospital, Central South University, Changsha, 410078, Hunan, China. .,Cancer Research Institute, Xiangya School of Medicine, Central South University, Changsha, 410078, Hunan, China.
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8
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Yan G, Li X, Peng Y, Long B, Fan Q, Wang Z, Shi M, Xie C, Zhao L, Yan X. The Fatty Acid β-Oxidation Pathway is Activated by Leucine Deprivation in HepG2 Cells: A Comparative Proteomics Study. Sci Rep 2017; 7:1914. [PMID: 28507299 PMCID: PMC5432498 DOI: 10.1038/s41598-017-02131-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2016] [Accepted: 04/07/2017] [Indexed: 12/23/2022] Open
Abstract
Leucine (Leu) is a multifunctional essential amino acid that plays crucial role in various cellular processes. However, the integral effect of Leu on the hepatic proteome remains largely unknown. Here, we for the first time applied an isobaric tags for relative and absolute quantification (iTRAQ)-based comparative proteomics strategy to investigate the proteome alteration induced by Leu deprivation in human hepatocellular carcinoma (HepG2) cells. A total of 4,111 proteins were quantified; 43 proteins were further identified as differentially expressed proteins between the normal and Leu deprivation groups. Bioinformatics analysis showed that the differentially expressed proteins were involved in various metabolic processes, including amino acid and lipid metabolism, as well as degradation of ethanol. Interestingly, several proteins involved in the fatty acid β-oxidation pathway, including ACSL1, ACADS, and ACOX1, were up-regulated by Leu deprivation. In addition, Leu deprivation led to the reduction of cellular triglycerides in HepG2 cells. These results reveal that the fatty acid β-oxidation pathway is activated by Leu deprivation in HepG2 cells, and provide new insights into the regulatory function of Leu in multiple cellular processes, especially fatty acid metabolism.
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Affiliation(s)
- Guokai Yan
- College of Animal Sciences and Technology, Huazhong Agricultural University, Wuhan, 430070, Hubei, China.,The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, 430070, Hubei, China.,Hubei Provincial Engineering Laboratory for Pig Precision Feeding and Feed Safety, Wuhan, 430070, Hubei, China
| | - Xiuzhi Li
- College of Animal Sciences and Technology, Huazhong Agricultural University, Wuhan, 430070, Hubei, China.,The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, 430070, Hubei, China.,Hubei Provincial Engineering Laboratory for Pig Precision Feeding and Feed Safety, Wuhan, 430070, Hubei, China
| | - Ying Peng
- The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, 430070, Hubei, China.,State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, Hubei, China
| | - Baisheng Long
- College of Animal Sciences and Technology, Huazhong Agricultural University, Wuhan, 430070, Hubei, China.,The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, 430070, Hubei, China.,Hubei Provincial Engineering Laboratory for Pig Precision Feeding and Feed Safety, Wuhan, 430070, Hubei, China
| | - Qiwen Fan
- College of Animal Sciences and Technology, Huazhong Agricultural University, Wuhan, 430070, Hubei, China.,The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, 430070, Hubei, China.,Hubei Provincial Engineering Laboratory for Pig Precision Feeding and Feed Safety, Wuhan, 430070, Hubei, China
| | - Zhichang Wang
- College of Animal Sciences and Technology, Huazhong Agricultural University, Wuhan, 430070, Hubei, China.,The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, 430070, Hubei, China.,Hubei Provincial Engineering Laboratory for Pig Precision Feeding and Feed Safety, Wuhan, 430070, Hubei, China
| | - Min Shi
- College of Animal Sciences and Technology, Huazhong Agricultural University, Wuhan, 430070, Hubei, China.,The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, 430070, Hubei, China.,Hubei Provincial Engineering Laboratory for Pig Precision Feeding and Feed Safety, Wuhan, 430070, Hubei, China
| | - Chunlin Xie
- College of Animal Sciences and Technology, Huazhong Agricultural University, Wuhan, 430070, Hubei, China.,The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, 430070, Hubei, China.,Hubei Provincial Engineering Laboratory for Pig Precision Feeding and Feed Safety, Wuhan, 430070, Hubei, China
| | - Li Zhao
- College of Animal Sciences and Technology, Huazhong Agricultural University, Wuhan, 430070, Hubei, China.,The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, 430070, Hubei, China.,Hubei Provincial Engineering Laboratory for Pig Precision Feeding and Feed Safety, Wuhan, 430070, Hubei, China
| | - Xianghua Yan
- College of Animal Sciences and Technology, Huazhong Agricultural University, Wuhan, 430070, Hubei, China. .,The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, 430070, Hubei, China. .,Hubei Provincial Engineering Laboratory for Pig Precision Feeding and Feed Safety, Wuhan, 430070, Hubei, China.
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Complementary transcriptomic and proteomic analyses reveal regulatory mechanisms of milk protein production in dairy cows consuming different forages. Sci Rep 2017; 7:44234. [PMID: 28290485 PMCID: PMC5349593 DOI: 10.1038/srep44234] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2016] [Accepted: 02/06/2017] [Indexed: 11/19/2022] Open
Abstract
Forage plays a critical role in the milk production of dairy cows; however, the mechanisms regulating bovine milk synthesis in dairy cows fed high forage rations with different basal forage types are not well-understood. In the study, rice straw (RS, low-quality) and alfalfa hay (AH, high-quality) diets were fed to lactating cows to explore how forage quality affected the molecular mechanisms regulating milk production using RNA-seq transcriptomic method with iTRAQ proteomic technique. A total of 554 transcripts (423 increased and 131 decreased) and 517 proteins (231 up-regulated and 286 down-regulated) were differentially expressed in the mammary glands of the two groups. The correlation analysis demonstrated seven proteins (six up-regulated and one down-regulated) had consistent mRNA expression. Functional analysis of the differentially expressed transcripts/proteins suggested that enhanced capacity for energy and fatty acid metabolism, increased protein degradation, reduced protein synthesis, decreased amino acid metabolism and depressed cell growth were related to RS consumption. The results indicated cows consuming RS diets may have had depressed milk protein synthesis because these animals had decreased capacity for protein synthesis, enhanced proteolysis, inefficient energy generation and reduced cell growth. Additional work evaluating RS- and AH-based rations may help better isolate molecular adaptations to low nutrient availability during lactation.
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CXCL4 Contributes to the Pathogenesis of Chronic Liver Allograft Dysfunction. J Immunol Res 2016; 2016:9276986. [PMID: 28053995 PMCID: PMC5178361 DOI: 10.1155/2016/9276986] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2016] [Revised: 10/13/2016] [Accepted: 10/18/2016] [Indexed: 02/05/2023] Open
Abstract
Chronic liver allograft dysfunction (CLAD) remains the most common cause of patient morbidity and allograft loss in liver transplant patients. However, the pathogenesis of CLAD has not been completely elucidated. By establishing rat CLAD models, in this study, we identified the informative CLAD-associated genes using isobaric tags for relative and absolute quantification (iTRAQ) proteomics analysis and validated these results in recipient rat liver allografts. CXCL4, CXCR3, EGFR, JAK2, STAT3, and Collagen IV were associated with CLAD pathogenesis. We validated that CXCL4 is upstream of these informative genes in the isolated hepatic stellate cells (HSC). Blocking CXCL4 protects against CLAD by reducing liver fibrosis. Therefore, our results indicated that therapeutic approaches that neutralize CXCL4, a newly identified target of fibrosis, may represent a novel strategy for preventing and treating CLAD after liver transplantation.
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iTRAQ-Based Proteomics Identification of Serum Biomarkers of Two Chronic Hepatitis B Subtypes Diagnosed by Traditional Chinese Medicine. BIOMED RESEARCH INTERNATIONAL 2016; 2016:3290260. [PMID: 28025641 PMCID: PMC5153474 DOI: 10.1155/2016/3290260] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/18/2016] [Accepted: 10/24/2016] [Indexed: 02/05/2023]
Abstract
Background. Chronic infection with hepatitis B virus (HBV) is a leading cause of cirrhosis and hepatocellular carcinoma. By traditional Chinese medicine (TCM) pattern classification, damp heat stasis in the middle-jiao (DHSM) and liver Qi stagnation and spleen deficiency (LSSD) are two most common subtypes of CHB. Results. In this study, we employed iTRAQ proteomics technology to identify potential serum protein biomarkers in 30 LSSD-CHB and 30 DHSM-CHB patients. Of the total 842 detected proteins, 273 and 345 were differentially expressed in LSSD-CHB and DHSM-CHB patients compared to healthy controls, respectively. LSSD-CHB and DHSM-CHB shared 142 upregulated and 84 downregulated proteins, of which several proteins have been reported to be candidate biomarkers, including immunoglobulin (Ig) related proteins, complement components, apolipoproteins, heat shock proteins, insulin-like growth factor binding protein, and alpha-2-macroglobulin. In addition, we identified that proteins might be potential biomarkers to distinguish LSSD-CHB from DHSM-CHB, such as A0A0A0MS51_HUMAN (gelsolin), PON3_HUMAN, Q96K68_HUMAN, and TRPM8_HUMAN that were differentially expressed exclusively in LSSD-CHB patients and A0A087WT59_HUMAN (transthyretin), ITIH1_HUMAN, TSP1_HUMAN, CO5_HUMAN, and ALBU_HUMAN that were differentially expressed specifically in DHSM-CHB patients. Conclusion. This is the first time to report serum proteins in CHB subtype patients. Our findings provide potential biomarkers can be used for LSSD-CHB and DHSM-CHB.
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