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Pan PK, Wu TM, Tsai HY, Cho IC, Tseng HW, Lin TD, Nan FH, Wu YS. Acid external and internal environment exchange the Oreochromis niloticus tissue immune gene expression compared to the mouse macrophage polarization model. Front Immunol 2022; 13:1012078. [PMID: 36225935 PMCID: PMC9549756 DOI: 10.3389/fimmu.2022.1012078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Accepted: 08/30/2022] [Indexed: 11/13/2022] Open
Abstract
The water environment plays an important role in animal physiology. In this study, we sought to evaluate the effect of the acid environment on the Oreochromis niloticus (Nile tilapia) internal microenvironment immune response compare to the mouse macrophage model (J77A.1). The acid environment treated mouse macrophage J774A.1 model have shown that acidic treatment is able to polarize macrophages into M2-like macrophages via an increase in Ym1, Tgm2, Arg1, Fizz1, and IL-10 expression. Metabolic analysis of mouse macrophages (J774A.1) at pH 2 vs. pH 7 and pH 4 vs. pH 7 have been shown to promote the expression of intracellular acetylcholine, choline, prochlorperazine, L-leucine, and bisphenol A,2-amino-3-methylimidazo[4,5-f] quinolone metabolites in the M2-like macrophage. Immune gene expression of the O. niloticus spleen and liver treated at pH 2, 4, and 7 was shown to reduce TNF-α, IL-1 β, IL-8, and IL-12 expression compared to pH 7 treatment. Immune gene was induced in O. niloticus following culture at pH 5, 6, and 7 fresh water environment. Taken together, we found that the acid internal environment polarizes tissues into an M2 macrophage developmental microenvironment. However, if the external environment is acid, tissues are exposed to an M1 macrophage developmental microenvironment.
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Affiliation(s)
- Po-Kai Pan
- Department of Aquaculture, National Pingtung University of Science and Technology, Pingtung, Taiwan
| | - Tsung-Meng Wu
- Department of Aquaculture, National Pingtung University of Science and Technology, Pingtung, Taiwan
| | - Hsin-Yuan Tsai
- Department of Aquaculture, National Pingtung University of Science and Technology, Pingtung, Taiwan
| | - I-Cheng Cho
- Department of Aquaculture, National Pingtung University of Science and Technology, Pingtung, Taiwan
| | - Hsin-Wei Tseng
- Department of Aquaculture, National Pingtung University of Science and Technology, Pingtung, Taiwan
| | - Tai-Du Lin
- Biological Sciences Division, Pacific Northwest National Laboratory, Richland, WA, United States
| | - Fan-Hua Nan
- Department of Aquaculture, National Taiwan Ocean University, Keelung, Taiwan
| | - Yu-Sheng Wu
- Department of Aquaculture, National Pingtung University of Science and Technology, Pingtung, Taiwan
- *Correspondence: Yu-Sheng Wu,
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Abstract
Peptide ligands presented by human leukocyte antigen (HLA) molecules on the cell surface represent the immunopeptidome that could be utilized for identification of antigenic peptides for immunotherapy and prevention of autoimmune diseases. Although T-cells are well-known key players in the destruction of pancreatic beta-cells in type 1 diabetes (T1D), increasing evidence points toward a role for B-cells in disease pathogenesis. However, as antigen presenting cells, little is known about the comprehensive immunopeptidome of B cells and their changes in the context of T1D. We performed HLA allele-specific quantitative immunopeptidomics using B lymphocytes derived from T1D patients and healthy controls. Hundreds of HLA-I and HLA-II immunopeptides were identified as differentially regulated in T1D per HLA allele for B cells sharing identical HLA alleles. The results were further validated using additional T1D and healthy B cells with partially overlapped HLA alleles. Differentially expressed immunopeptides were confirmed with targeted proteomics and for reactivity using known T-cell assays in the immune epitope database. Considering samples with identical HLA alleles are difficult to obtain for T1D and other similar HLA-restricted diseases, our work represents a viable approach to better understand HLA allele-specific antigen presentation and may facilitate identification of immunopeptides for therapeutic applications in autoimmune diseases. Data are available via ProteomeXchange with identifier PXD026184.
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Affiliation(s)
- Putty-Reddy Sudhir
- Center for Translational Biomedical Research, University of North Carolina at Greensboro, North Carolina Research Campus, Kannapolis, NC, 28081, USA
| | - Tai-Du Lin
- Center for Translational Biomedical Research, University of North Carolina at Greensboro, North Carolina Research Campus, Kannapolis, NC, 28081, USA
| | - Qibin Zhang
- Center for Translational Biomedical Research, University of North Carolina at Greensboro, North Carolina Research Campus, Kannapolis, NC, 28081, USA,Department of Chemistry & Biochemistry, University of North Carolina at Greensboro, Greensboro, NC 27412, USA,Corresponding author: Qibin Zhang ()
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Zhong W, Wei X, Hao L, Lin TD, Yue R, Sun X, Guo W, Dong H, Li T, Ahmadi AR, Sun Z, Zhang Q, Zhao J, Zhou Z. Paneth Cell Dysfunction Mediates Alcohol-related Steatohepatitis Through Promoting Bacterial Translocation in Mice: Role of Zinc Deficiency. Hepatology 2020; 71:1575-1591. [PMID: 31520476 PMCID: PMC7069794 DOI: 10.1002/hep.30945] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/22/2019] [Accepted: 09/06/2019] [Indexed: 12/17/2022]
Abstract
BACKGROUND AND AIMS Microbial dysbiosis is associated with alcohol-related hepatitis (AH), with the mechanisms yet to be elucidated. The present study aimed to determine the effects of alcohol and zinc deficiency on Paneth cell (PC) antimicrobial peptides, α-defensins, and to define the link between PC dysfunction and AH. APPROACH AND RESULTS Translocation of pathogen-associated molecular patterns (PAMPs) was determined in patients with severe AH and in a mouse model of alcoholic steatohepatitis. Microbial composition and PC function were examined in mice. The link between α-defensin dysfunction and AH was investigated in α-defensin-deficient mice. Synthetic human α-defensin 5 (HD5) was orally given to alcohol-fed mice to test the therapeutic potential. The role of zinc deficiency in α-defensin was evaluated in acute and chronic mouse models of zinc deprivation. Hepatic inflammation was associated with PAMP translocation and lipocalin-2 (LCN2) and chemokine (C-X-C motif) ligand 1 (CXCL1) elevation in patients with AH. Antibiotic treatment, lipopolysaccharide injection to mice, and in vitro experiments showed that PAMPs, but not alcohol, directly induced LCN2 and CXCL1. Chronic alcohol feeding caused systemic dysbiosis and PC α-defensin reduction in mice. Knockout of functional α-defensins synergistically affected alcohol-perturbed bacterial composition and the gut barrier and exaggerated PAMP translocation and liver damage. Administration of HD5 effectively altered cecal microbial composition, especially increased Akkermansia muciniphila, and reversed the alcohol-induced deleterious effects. Zinc-regulated PC homeostasis and α-defensins function at multiple levels, and dietary zinc deficiency exaggerated the deleterious effect of alcohol on PC bactericidal activity. CONCLUSIONS Taken together, the study suggests that alcohol-induced PC α-defensin dysfunction is mediated by zinc deficiency and involved in the pathogenesis of AH. HD5 administration may represent a promising therapeutic approach for treating AH.
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Affiliation(s)
- Wei Zhong
- Center for Translational Biomedical Research, University of North Carolina at Greensboro, North Carolina Research Campus, Kannapolis, NC, USA 28081.,Department of Nutrition, University of North Carolina at Greensboro, North Carolina Research Campus, Kannapolis, NC, USA 28081.,Corresponding authors: Wei Zhong, Phone: 704-250-5814, . Zhanxiang Zhou, Phone: 704-250-5800.
| | - Xiaoyuan Wei
- Department of Animal Science, Division of Agriculture, University of Arkansas, Fayetteville, AR, USA 72701
| | - Liuyi Hao
- Center for Translational Biomedical Research, University of North Carolina at Greensboro, North Carolina Research Campus, Kannapolis, NC, USA 28081
| | - Tai-Du Lin
- Center for Translational Biomedical Research, University of North Carolina at Greensboro, North Carolina Research Campus, Kannapolis, NC, USA 28081.,Department of Chemistry & Biochemistry, University of North Carolina at Greensboro, North Carolina Research Campus, Kannapolis, NC, USA 28081
| | - Ruichao Yue
- Center for Translational Biomedical Research, University of North Carolina at Greensboro, North Carolina Research Campus, Kannapolis, NC, USA 28081
| | - Xinguo Sun
- Center for Translational Biomedical Research, University of North Carolina at Greensboro, North Carolina Research Campus, Kannapolis, NC, USA 28081
| | - Wei Guo
- Center for Translational Biomedical Research, University of North Carolina at Greensboro, North Carolina Research Campus, Kannapolis, NC, USA 28081
| | - Haibo Dong
- Center for Translational Biomedical Research, University of North Carolina at Greensboro, North Carolina Research Campus, Kannapolis, NC, USA 28081
| | - Tianjiao Li
- Department of Nutrition, University of North Carolina at Greensboro, North Carolina Research Campus, Kannapolis, NC, USA 28081
| | - Ali R. Ahmadi
- Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA 21205
| | - Zhaoli Sun
- Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA 21205
| | - Qibin Zhang
- Center for Translational Biomedical Research, University of North Carolina at Greensboro, North Carolina Research Campus, Kannapolis, NC, USA 28081.,Department of Chemistry & Biochemistry, University of North Carolina at Greensboro, North Carolina Research Campus, Kannapolis, NC, USA 28081
| | - Jiangchao Zhao
- Department of Animal Science, Division of Agriculture, University of Arkansas, Fayetteville, AR, USA 72701
| | - Zhanxiang Zhou
- Center for Translational Biomedical Research, University of North Carolina at Greensboro, North Carolina Research Campus, Kannapolis, NC, USA 28081.,Department of Nutrition, University of North Carolina at Greensboro, North Carolina Research Campus, Kannapolis, NC, USA 28081.,Corresponding authors: Wei Zhong, Phone: 704-250-5814, . Zhanxiang Zhou, Phone: 704-250-5800.
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Dimayacyac-Esleta BRT, Tsai CF, Kitata RB, Lin PY, Choong WK, Lin TD, Wang YT, Weng SH, Yang PC, Arco SD, Sung TY, Chen YJ. Rapid High-pH Reverse Phase StageTip for Sensitive Small-Scale Membrane Proteomic Profiling. Anal Chem 2015; 87:12016-23. [PMID: 26554430 DOI: 10.1021/acs.analchem.5b03639] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Membrane proteins are crucial targets for cancer biomarker discovery and drug development. However, in addition to the inherent challenges of hydrophobicity and low abundance, complete membrane proteome coverage of clinical specimen is usually hindered by the requirement of large amount of starting materials. Toward comprehensive membrane proteomic profiling for small amounts of samples (10 μg), we developed high-pH reverse phase (Hp-RP) combined with stop-and-go extraction tip (StageTip) technique, as a fast (∼15 min.), sensitive, reproducible, high-resolution and multiplexed fractionation method suitable for accurate quantification of the membrane proteome. This approach provided almost 2-fold enhanced detection of peptides encompassing transmembrane helix (TMH) domain, as compared with strong anion exchange (SAX) and strong cation exchange (SCX) StageTip techniques. Almost 5000 proteins (∼60% membrane proteins) can be identified in only 10 μg of membrane protein digests, showing the superior sensitivity of the Hp-RP StageTip approach. The method allowed up to 9- and 6-fold increase in the identification of unique hydrophobic and hydrophilic peptides, respectively. The Hp-RP StageTip method enabled in-depth membrane proteome profiling of 11 lung cancer cell lines harboring different EGFR mutation status, which resulted in the identification of 3983 annotated membrane proteins. This provides the largest collection of reference peptide spectral data for lung cancer membrane subproteome. Finally, relative quantification of membrane proteins between Gefitinib-resistant and -sensitive lung cancer cell lines revealed several up-regulated membrane proteins with key roles in lung cancer progression.
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Affiliation(s)
- Baby Rorielyn T Dimayacyac-Esleta
- Institute of Chemistry, University of the Philippines , Diliman Quezon City 1101, Philippines.,Institute of Chemistry, Academia Sinica , Taipei 115, Taiwan
| | - Chia-Feng Tsai
- Institute of Chemistry, Academia Sinica , Taipei 115, Taiwan
| | - Reta Birhanu Kitata
- Institute of Chemistry, Academia Sinica , Taipei 115, Taiwan.,Department of Chemistry, National Tsing Hua University , Hsinchu 30013, Taiwan.,Molecular Science and Technology Program, Taiwan International Graduate Program, Academia Sinica , Taipei 115, Taiwan
| | - Pei-Yi Lin
- Institute of Chemistry, Academia Sinica , Taipei 115, Taiwan
| | - Wai-Kok Choong
- Institute of Information Science, Academia Sinica , Taipei 115, Taiwan
| | - Tai-Du Lin
- Institute of Chemistry, Academia Sinica , Taipei 115, Taiwan.,Department of Biochemical Sciences, National Taiwan University , Taipei 10617, Taiwan
| | - Yi-Ting Wang
- Institute of Chemistry, Academia Sinica , Taipei 115, Taiwan
| | - Shao-Hsing Weng
- Institute of Chemistry, Academia Sinica , Taipei 115, Taiwan.,Genome and Systems Biology Degree Program, National Taiwan University , Taipei 10617, Taiwan
| | - Pan-Chyr Yang
- Department of Internal Medicine, National Taiwan University Hospital , Taipei 10617, Taiwan.,National Taiwan University College of Medicine , Taipei 10051, Taiwan.,Institute of Biomedical Science, Academia Sinica , Taipei 115, Taiwan
| | - Susan D Arco
- Institute of Chemistry, University of the Philippines , Diliman Quezon City 1101, Philippines
| | - Ting-Yi Sung
- Institute of Information Science, Academia Sinica , Taipei 115, Taiwan
| | - Yu-Ju Chen
- Institute of Chemistry, Academia Sinica , Taipei 115, Taiwan.,Department of Chemistry, National Tsing Hua University , Hsinchu 30013, Taiwan.,Molecular Science and Technology Program, Taiwan International Graduate Program, Academia Sinica , Taipei 115, Taiwan
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Kitata RB, Dimayacyac-Esleta BRT, Choong WK, Tsai CF, Lin TD, Tsou CC, Weng SH, Chen YJ, Yang PC, Arco SD, Nesvizhskii AI, Sung TY, Chen YJ. Mining Missing Membrane Proteins by High-pH Reverse-Phase StageTip Fractionation and Multiple Reaction Monitoring Mass Spectrometry. J Proteome Res 2015. [PMID: 26202522 DOI: 10.1021/acs.jproteome.5b00477] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Despite significant efforts in the past decade toward complete mapping of the human proteome, 3564 proteins (neXtProt, 09-2014) are still "missing proteins". Over one-third of these missing proteins are annotated as membrane proteins, owing to their relatively challenging accessibility with standard shotgun proteomics. Using nonsmall cell lung cancer (NSCLC) as a model study, we aim to mine missing proteins from disease-associated membrane proteome, which may be still largely under-represented. To increase identification coverage, we employed Hp-RP StageTip prefractionation of membrane-enriched samples from 11 NSCLC cell lines. Analysis of membrane samples from 20 pairs of tumor and adjacent normal lung tissue was incorporated to include physiologically expressed membrane proteins. Using multiple search engines (X!Tandem, Comet, and Mascot) and stringent evaluation of FDR (MAYU and PeptideShaker), we identified 7702 proteins (66% membrane proteins) and 178 missing proteins (74 membrane proteins) with PSM-, peptide-, and protein-level FDR of 1%. Through multiple reaction monitoring using synthetic peptides, we provided additional evidence of eight missing proteins including seven with transmembrane helix domains. This study demonstrates that mining missing proteins focused on cancer membrane subproteome can greatly contribute to map the whole human proteome. All data were deposited into ProteomeXchange with the identifier PXD002224.
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Affiliation(s)
- Reta Birhanu Kitata
- Institute of Chemistry, Academia Sinica , No. 128, Academia Road Sec. 2, Taipei 115, Taiwan.,Department of Chemistry, National Tsing Hua University , 101, Sec 2, Kuang-Fu Road, Hsinchu 30013, Taiwan.,Molecular Science and Technology Program, Taiwan International Graduate Program, Academia Sinica , No. 1, Roosevelt Road, Sec. 4, Taipei 10617, Taiwan
| | - Baby Rorielyn T Dimayacyac-Esleta
- Institute of Chemistry, Academia Sinica , No. 128, Academia Road Sec. 2, Taipei 115, Taiwan.,Institute of Chemistry, University of the Philippines , Diliman Quezon City, Philippines
| | - Wai-Kok Choong
- Institute of Information Science, Academia Sinica , 128 Academia Road, Section 2, Taipei 115, Taiwan
| | - Chia-Feng Tsai
- Institute of Chemistry, Academia Sinica , No. 128, Academia Road Sec. 2, Taipei 115, Taiwan
| | - Tai-Du Lin
- Institute of Chemistry, Academia Sinica , No. 128, Academia Road Sec. 2, Taipei 115, Taiwan.,Department of Biochemical Sciences, National Taiwan University , 1 Roosevelt Road, Sec. 4, Taipei 106, Taiwan
| | - Chih-Chiang Tsou
- Department of Computational Medicine and Bioinformatics and Department of Pathology, University of Michigan Medical School , 1301 Catherine, Ann Arbor, Michigan 48109, United States
| | - Shao-Hsing Weng
- Institute of Chemistry, Academia Sinica , No. 128, Academia Road Sec. 2, Taipei 115, Taiwan.,Genome and Systems Biology Degree Program, National Taiwan University , 1, Roosevelt Road, Section 4, Taipei 10617, Taiwan
| | - Yi-Ju Chen
- Institute of Chemistry, Academia Sinica , No. 128, Academia Road Sec. 2, Taipei 115, Taiwan
| | - Pan-Chyr Yang
- Department of Internal Medicine, National Taiwan University Hospital , 1 Jen-Ai Road, Section 1, Taipei 10051, Taiwan.,National Taiwan University College of Medicine , No. 1, Section 1, Ren'ai Road, Taipei 100, Taiwan.,Institute of Biomedical Science, Academia Sinica , 128 Academia Road, Section 2, Taipei 115, Taiwan
| | - Susan D Arco
- Institute of Chemistry, University of the Philippines , Diliman Quezon City, Philippines
| | - Alexey I Nesvizhskii
- Department of Computational Medicine and Bioinformatics and Department of Pathology, University of Michigan Medical School , 1301 Catherine, Ann Arbor, Michigan 48109, United States
| | - Ting-Yi Sung
- Institute of Information Science, Academia Sinica , 128 Academia Road, Section 2, Taipei 115, Taiwan
| | - Yu-Ju Chen
- Institute of Chemistry, Academia Sinica , No. 128, Academia Road Sec. 2, Taipei 115, Taiwan.,Department of Chemistry, National Tsing Hua University , 101, Sec 2, Kuang-Fu Road, Hsinchu 30013, Taiwan.,Molecular Science and Technology Program, Taiwan International Graduate Program, Academia Sinica , No. 1, Roosevelt Road, Sec. 4, Taipei 10617, Taiwan
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Chen SC, Guh JY, Lin TD, Chiou SJ, Hwang CC, Ko YM, Chuang LY. Gefitinib attenuates transforming growth factor-β1-activated mitogen-activated protein kinases and mitogenesis in NRK-49F cells. Transl Res 2011; 158:214-24. [PMID: 21925118 DOI: 10.1016/j.trsl.2011.06.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2011] [Revised: 05/15/2011] [Accepted: 06/05/2011] [Indexed: 01/03/2023]
Abstract
Transforming growth factor-β (TGF-β), TGF-β receptor (TGF-βR), and epidermal growth factor receptor (EGFR) are important in the pathogenesis of kidney fibrosis, a result of renal fibroblast activation. The EGFR kinase inhibitor gefitinib attenuates glomerular fibrosis in hypertensive rats whereas dominant-negative EGFR attenuates interstitial fibrosis in mouse with acute renal ischemia. Thus, we studied the effects and molecular mechanisms of gefitinib in TGF-β1-induced mitogenesis and collagen production in normal rat kidney interstitial fibroblast (NRK-49F) cells. We found that TGF-β1 increased cell mitogenesis. TGF-β1 also time-dependently increased cyclin D1 protein expression. TGF-β1 rapidly transactivated EGFR. SB431542 (a type I TGF-βR kinase inhibitor) and SB203580 (a p38 kinase inhibitor) attenuated TGF-β1-induced phosphorylation of Smad2/3 protein. SB431542 and gefitinib attenuated TGF-β1-induced phosphorylation of ERK1/2 and p38 kinase. SB431542 and gefitinib also attenuated TGF-β1-induced cyclin D1 protein expression. Moreover, SB431542, gefitinib, PD98059 (an ERK1/2 inhibitor), and SB203580 attenuated TGF-β1-induced cell mitogenesis. Finally, SB431542 and gefitinib attenuated TGF-β1-induced collagen production. We concluded that gefitinib attenuates TGF-β1-induced cell mitogenesis via the EGFR-ERK1/2/p38 kinase pathway in NRK-49F cells. Moreover, gefitinib attenuates TGF-β1-induced cyclin D1 protein expression and collagen production. Thus, gefitinib attenuates TGF-β1-induced mitogenesis and collagen production in vitro.
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Affiliation(s)
- San-Cher Chen
- Institute of Biomedical Sciences, National Sun Yat-Sen University, Taiwan, Republic of China
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Kasiappan R, Shih HJ, Wu MH, Choy C, Lin TD, Chen L, Hsu HL. The antagonism between MCT-1 and p53 affects the tumorigenic outcomes. Mol Cancer 2010; 9:311. [PMID: 21138557 PMCID: PMC3019166 DOI: 10.1186/1476-4598-9-311] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2010] [Accepted: 12/07/2010] [Indexed: 11/12/2022] Open
Abstract
Background MCT-1 oncoprotein accelerates p53 protein degradation via a proteosome pathway. Synergistic promotion of the xenograft tumorigenicity has been demonstrated in circumstance of p53 loss alongside MCT-1 overexpression. However, the molecular regulation between MCT-1 and p53 in tumor development remains ambiguous. We speculate that MCT-1 may counteract p53 through the diverse mechanisms that determine the tumorigenic outcomes. Results MCT-1 has now identified as a novel target gene of p53 transcriptional regulation. MCT-1 promoter region contains the response elements reactive with wild-type p53 but not mutant p53. Functional p53 suppresses MCT-1 promoter activity and MCT-1 mRNA stability. In a negative feedback regulation, constitutively expressed MCT-1 decreases p53 promoter function and p53 mRNA stability. The apoptotic events are also significantly prevented by oncogenic MCT-1 in a p53-dependent or a p53-independent fashion, according to the genotoxic mechanism. Moreover, oncogenic MCT-1 promotes the tumorigenicity in mice xenografts of p53-null and p53-positive lung cancer cells. In support of the tumor growth are irrepressible by p53 reactivation in vivo, the inhibitors of p53 (MDM2, Pirh2, and Cop1) are constantly stimulated by MCT-1 oncoprotein. Conclusions The oppositions between MCT-1 and p53 are firstly confirmed at multistage processes that include transcription control, mRNA metabolism, and protein expression. MCT-1 oncogenicity can overcome p53 function that persistently advances the tumor development.
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Affiliation(s)
- Ravi Kasiappan
- Division of Molecular and Genomic Medicine, National Health Research Institutes, Zhunan, Miaoli County, Taiwan
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Lin TD. Abstract B22: Oncogenic MCT-1 upregulates EGFR expression through YY1 transcription factor that cooperatively prevents apoptosis. Clin Cancer Res 2010. [DOI: 10.1158/1078-0432.tcmusa10-b22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Multiple copies in T cell malignancy 1 (MCT-1) is an oncogene initially identified in a human lymphoid cell line. Constitutive expression of MCT-1 induces cell proliferation and activates survival pathways. We now demonstrate that MCT-1 upregulats epidermal growth factor receptor (EGFR) and Yin Yang 1 (YY1) proteins. EGFR modulates cell proliferation, differentiation, and survival. EGFR promoter function is modulated by YY1, a ubiquitously expressed, multifunctional zinc-finger transcription factor. By silencing of MCT-1, p53 is upregulated but EGFR and YY1 expressions are depressed. YY1 and EGFR levels are increased when the intrinsic p53 is abolished via shRNA interference, proving their counteraction relationship. Shedding YY1 levels in ectopic MCT-1 context, EGFR expression is repressed but p53 decline is attenuated. Intriguingly, upon NNK (tabacoo carcinogen) exposure advances ROS generation in ectopically expressed MCT-1 and EGFR conditions, but those cells still highly defy to apoptosis. Cooperative effect of MCT-1 and EGFR also more resist to apoptosis as counters with the oxidant in the gas phase of cigarette smoking, H2O2. Hence, MCT-1 inactivates p53 but stimulates YY1-mediated EGFR expression, subsequently prevents the oxidation-induced apoptosis. We prospect that the combination inactivation of MCT-1 and YY1 will undoubtedly develop new and improved targeted therapies for the cancers origin from EGFR deregulation.
Citation Information: Clin Cancer Res 2010;16(14 Suppl):B22.
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Affiliation(s)
- Tai-Du Lin
- 1National Health Research Institutes, Maioli, Taiwan, Taiwan
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Chen SC, Guh JY, Hwang CC, Chiou SJ, Lin TD, Ko YM, Huang JS, Yang YL, Chuang LY. Advanced glycation end-products activate extracellular signal-regulated kinase via the oxidative stress-EGF receptor pathway in renal fibroblasts. J Cell Biochem 2010; 109:38-48. [PMID: 19885844 DOI: 10.1002/jcb.22376] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Advanced glycation end-products (AGEs), epidermal growth factor receptor (EGFR), reactive oxygen species (ROS), and extracellular signal-regulated kinases (ERK) are implicated in diabetic nephropathy (DN). Therefore, we asked if AGEs-induced ERK protein phosphorylation and mitogenesis are dependent on the receptor for AGEs (RAGE)-ROS-EGFR pathway in normal rat kidney interstitial fibroblast (NRK-49F) cells. We found that AGEs (100 microg/ml) activated EGFR and ERK1/2, which was attenuated by RAGE short-hairpin RNA (shRNA). AGEs also increased RAGE protein and intracellular ROS levels while RAGE shRNA and N-acetylcysteine (NAC) attenuated AGEs-induced intracellular ROS. Hydrogen peroxide (5-25 microM) increased RAGE protein level while activating both EGFR and ERK1/2. Low-dose hydrogen peroxide (5 microM) increased whereas high-dose hydrogen peroxide (100 microM) decreased mitogenesis at 3 days. AGEs-activated EGFR and ERK1/2 were attenuated by an anti-oxidant (NAC) and an EGFR inhibitor (Iressa). Moreover, AGEs-induced mitogenesis was attenuated by RAGE shRNA, NAC, Iressa, and an ERK1/2 inhibitor (PD98059). In conclusion, it was found that AGEs-induced mitogenesis is dependent on the RAGE-ROS-EGFR-ERK1/2 pathway whereas AGEs-activated ERK1/2 is dependent on the RAGE-ROS-EGFR pathway in NRK-49F cells.
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Affiliation(s)
- San-Cher Chen
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
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Bernstein IH, Huang MH, Teng G, Lin TD. Effects of attitudes toward pornography upon male judgments of female attractiveness. Percept Psychophys 1986; 39:287-93. [PMID: 3737358 DOI: 10.3758/bf03204938] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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Minowa T, Nakagami Y, Hiraoka Y, Nakajima H, Lin TD. Trials of PIA (Cisplatin, Ifosfamide Adriamycin) therapy on bladder cancer. Nihon Ika Daigaku Zasshi 1984; 51:134-5. [PMID: 6539340 DOI: 10.1272/jnms1923.51.134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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