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Schuster J, Wendler O, Pesold VV, Koch M, Sievert M, Balk M, Rupp R, Mueller SK. Exosomal Serum Biomarkers as Predictors for Laryngeal Carcinoma. Cancers (Basel) 2024; 16:2028. [PMID: 38893148 PMCID: PMC11171163 DOI: 10.3390/cancers16112028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2024] [Revised: 05/18/2024] [Accepted: 05/19/2024] [Indexed: 06/21/2024] Open
Abstract
BACKGROUND The lack of screening methods for LSCC is a critical issue, as treatment options and the treatment outcome greatly depend on the stage of LSCC at initial diagnosis. Therefore, the objective of this study was to identify potential exosomal serum biomarkers that can diagnose LSCC and distinguish between early- and late-stage disease. METHODS A multiplexed proteomic array was used to identify differentially expressed proteins in exosomes isolated from the serum samples of LSCC patients compared to the control group (septorhinoplasty, SRP). The most promising proteins for diagnosis and differentiation were calculated using biostatistical methods and were validated by immunohistochemistry (IHC), Western blots (WB), and ELISA. RESULTS Exosomal insulin-like growth factor binding protein 7 (IGFBP7) and Annexin A1 (ANXA1) were the most promising exosomal biomarkers for distinguishing between control and LSCC patients and also between different stages of LSCC (fold change up to 15.9, p < 0.001 for all). CONCLUSION The identified proteins represent potentially novel non-invasive biomarkers. However, these results need to be validated in larger cohorts with a long-term follow-up. Exosomal biomarkers show a superior signal-to-noise ratio compared to whole serum and may therefore be an important tool for non-invasive biomarker profiling for laryngeal carcinoma in the future.
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Affiliation(s)
| | | | | | | | | | | | | | - Sarina Katrin Mueller
- Department of Otolaryngology, Head and Neck Surgery, Friedrich-Alexander-Universität Erlangen-Nürnberg, Waldstrasse 1, 91054 Erlangen, Germany; (J.S.); (O.W.); (V.-V.P.); (M.K.); (M.S.); (M.B.); (R.R.)
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Song F, Li J, Shi Q, Wong YK, Liu D, Lin Q, Wang J, Chen X. Quantitative Chemical Proteomics Reveals Triptolide Selectively Inhibits HCT116 Human Colon Cancer Cell Viability and Migration Through Binding to Peroxiredoxin 1 and Annexin A1. Adv Biol (Weinh) 2023:e2300452. [PMID: 37794608 DOI: 10.1002/adbi.202300452] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2023] [Revised: 09/08/2023] [Indexed: 10/06/2023]
Abstract
Triptolide (TPL), a natural product extracted from Tripterygium wilfordii Hook F, exerts potential anti-cancer activity. Studies have shown that TPL is involved in multiple cellular processes and signal pathways; however, its pharmaceutical activity in human colorectal cancer (CRC) as well as the underlying molecular mechanism remain elusive. In this study, the effects of TPL on HCT116 human colon cancer cells and CCD841 human colon epithelial cells are first evaluated. Next, the protein targets of TPL in HCT116 cells are identified through an activity-based protein profiling approach. With subsequent in vitro experiments, the mode of action of TPL in HCT116 cells is elucidated. As a result, TPL is found to selectively inhibit HCT116 cell viability and migration. A total of 54 proteins are identified as the targets of TPL in HCT116 cells, among which, Annexin A1 (ANXA1) and Peroxiredoxin I/II (Prdx I/II) are picked out for further investigation due to their important role in CRC. The interaction between TPL and ANXA1 or Prdx I is confirmed, and it is discovered that TPL exerts inhibitory effect against HCT116 cells through binding to ANXA1 and Prdx I. The study reinforces the potential of TPL in the CRC therapy, and provides novel therapeutic targets for the treatment of CRC.
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Affiliation(s)
- Fangli Song
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Artemisinin Research Center, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 10700, China
| | - Jinglin Li
- Department of biological Sciences, National University of Singapore, Singapore, 117600, Singapore
| | - Qiaoli Shi
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Artemisinin Research Center, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 10700, China
| | - Yin Kwan Wong
- Department of biological Sciences, National University of Singapore, Singapore, 117600, Singapore
| | - Dandan Liu
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Artemisinin Research Center, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 10700, China
| | - Qingsong Lin
- Department of biological Sciences, National University of Singapore, Singapore, 117600, Singapore
| | - Jigang Wang
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Artemisinin Research Center, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 10700, China
| | - Xiao Chen
- School of Biopharmacy, China Pharmaceutical University, Nanjing, 210009, China
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Fernandez-Torres MA, Lledó VE, Perez de Lara MJ, Guzman-Aranguez A. Effects of hyperosmolarity on annexin A1 on ocular surface epithelium in vitro. Exp Eye Res 2022; 224:109245. [PMID: 36087761 DOI: 10.1016/j.exer.2022.109245] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Revised: 08/15/2022] [Accepted: 09/02/2022] [Indexed: 11/28/2022]
Abstract
Osmotic stress is an important challenge to cell function. Dry eye pathology is characterized by elevated tear film osmolarity as consequence of decreased tear secretion and/or increased evaporation. Dry eye pathogenesis is not completely clarified. However, it is known that tear hyperosmolarity induces NLRP3 (nucleotide-binding oligomerization domain-like receptor family, pyrin domain-cointaining 3) inflammasome activation and inflammatory mediators release that leads to ocular surface damage. Annexin A1 is a protein involved in anti-inflammatory or pro-resolution actions in different tissues while its presence and biological role on ocular surface has been scarcely examined. In this study, potential changes in annexin A1 protein expression and secretion on the ocular surface after exposure to hyperosmolar conditions were evaluated. In addition, considering the significant role of inflammation in dry eye pathology, the potential anti-inflammatory activity of Ac2-26, an annexin A1 peptide mimicking its N-terminus, was assessed. Cytosolic and membrane staining was detected for annexin A1 in corneal and conjunctival epithelial cells. A native form of annexin A1 together with a truncated form were detected by western blot analysis. Under hyperosmotic conditions increased protein levels of intracellular and secreted annexin A1 as well as higher expression of its receptor Fpr2 (formyl peptide receptor type 2) were found. Treatment with mimetic peptide Ac2-26 ameliorated NLRP3 activation and interleukin 1β (IL-1β) release triggered by elevated osmolarity in corneal and conjunctival epithelial cells. These findings suggest a potential role of annexin A1 and its mimetic peptide modulating key inflammatory events associated to dry eye.
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Affiliation(s)
- Miguel Angel Fernandez-Torres
- Department of Biochemistry and Molecular Biology, Faculty of Optics and Optometry, Universidad Complutense de Madrid, Madrid, Spain
| | - Victoria Eugenia Lledó
- Department of Biochemistry and Molecular Biology, Faculty of Optics and Optometry, Universidad Complutense de Madrid, Madrid, Spain
| | - Maria J Perez de Lara
- Department of Biochemistry and Molecular Biology, Faculty of Optics and Optometry, Universidad Complutense de Madrid, Madrid, Spain
| | - Ana Guzman-Aranguez
- Department of Biochemistry and Molecular Biology, Faculty of Optics and Optometry, Universidad Complutense de Madrid, Madrid, Spain.
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Tanaka H, Saigo C, Iwata Y, Yasufuku I, Kito Y, Yoshida K, Takeuchi T. Human colorectal cancer-associated carbohydrate antigen on annexin A2 protein. J Mol Med (Berl) 2021; 99:1115-1123. [PMID: 33904933 DOI: 10.1007/s00109-021-02077-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Revised: 03/22/2021] [Accepted: 04/09/2021] [Indexed: 10/21/2022]
Abstract
Cancer-associated antigens are not only a good marker for monitoring cancer progression but are also useful for molecular target therapy. In this study, we aimed to generate a monoclonal antibody that preferentially reacts with colorectal cancer cells relative to noncancerous gland cells. We prepared antigens composed of HT-29 colorectal cancer cell lysates that were adsorbed by antibodies to sodium butyrate-induced enterocytically differentiated HT-29 cells. Subsequently, we generated a monoclonal antibody, designated 12G5A, which reacted with HT-29 colon cancer cells, but not with sodium butyrate-induced differentiated HT-29 cells. Immunohistochemical staining revealed 12G5A immunoreactivity in all 73 colon cancer tissue specimens examined at various degrees, but little or no immunoreactivity in noncancerous gland cells. Notably, high 12G5A immunoreactivity, which was determined as more than 50% of colon cancer cells intensively stained with 12G5A antibody, exhibited significantly higher association with a poor overall survival rate of patients with colorectal cancer (P = 0.0196) and unfavorable progression-free survival rate of patients with colorectal cancer (P = 0.0418). Matrix-assisted laser desorption ionization time-of-flight mass spectrometry, si-RNA silencing analysis, enzymatic deglycosylation, and tunicamycin treatment revealed that 12G5A recognized the glycosylated epitope on annexin A2 protein. Our findings indicate that 12G5A identified a cancer-associated glycosylation epitope on annexin A2, whose expression was related to unfavorable colorectal cancer behavior. KEY MESSAGE: • 12G5A monoclonal antibody recognized a colorectal cancer-associated epitope. • 12G5A antibody recognized the N-linked glycosylation epitope on annexin A2. • 12G5A immunoreactivity was related to unfavorable colorectal cancer behavior.
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Affiliation(s)
- Hideharu Tanaka
- Department of Surgical Oncology, Gifu University, Gifu University Graduate School of Medicine, Gifu, Japan
| | - Chiemi Saigo
- Department of Pathology and Translational Research, Gifu University Graduate School of Medicine, Gifu, Japan
| | - Yoshinori Iwata
- Department of Surgical Oncology, Gifu University, Gifu University Graduate School of Medicine, Gifu, Japan
| | - Itaru Yasufuku
- Department of Surgical Oncology, Gifu University, Gifu University Graduate School of Medicine, Gifu, Japan
| | - Yusuke Kito
- Department of Pathology and Translational Research, Gifu University Graduate School of Medicine, Gifu, Japan
| | - Kazuhiro Yoshida
- Department of Surgical Oncology, Gifu University, Gifu University Graduate School of Medicine, Gifu, Japan
| | - Tamotsu Takeuchi
- Department of Pathology and Translational Research, Gifu University Graduate School of Medicine, Gifu, Japan.
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Couto MR, Gonçalves P, Magro F, Martel F. Microbiota-derived butyrate regulates intestinal inflammation: Focus on inflammatory bowel disease. Pharmacol Res 2020; 159:104947. [DOI: 10.1016/j.phrs.2020.104947] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Revised: 05/04/2020] [Accepted: 05/19/2020] [Indexed: 12/12/2022]
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Xiao L, Jin H, Duan W, Hou Y. Roles of N-terminal Annexin A2 phosphorylation sites and miR-206 in colonic adenocarcinoma. Life Sci 2020; 253:117740. [PMID: 32376265 DOI: 10.1016/j.lfs.2020.117740] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2020] [Revised: 04/24/2020] [Accepted: 04/28/2020] [Indexed: 12/15/2022]
Abstract
AIMS Annexin A2 (ANXA2) is closely associated with tumor malignancy and its N-terminus includes a vital domain for its function. The aims are to explore the correlation between the sites (Tyr23, Ser1, Ser11 and Ser25) in the domain and its roles. MAIN METHODS We re-expressed ANXA2 with mutated sites in ANXA2-deleted human colonic adenocarcinoma cell line caco2 (ANXA2-/-caco2). A series of analyses were used to determine the correlation of each site with ANXA2 activation, cell malignancy enhancement and motility-associated microstructural development. Bioinformatics and luciferase reporter assays were employed to validate ANXA2-targeted miRNAs. KEY FINDINGS The in vitro results showed that all single and multiple mutations of the ANXA2 N-terminal sites inhibited ANXA2 phosphorylation at different levels and subsequently inhibited the proliferation, motility, and polymerization of F-actin and β-tubulin in caco2 cells. Motility-associated microstructures were significantly remodeled when these sites were mutated. The forced expression of miR-206 significantly suppressed the proliferation, motility and epithelial-mesenchymal transition (EMT) of caco2 cells. The in vivo results showed that all the ANXA2 N-terminal site mutations and forced expression of miR-206 significantly inhibited tumor growth. Overall, this study demonstrated that the sites of the ANXA2 N-terminus, especially Tyr23, play crucial roles in maintaining the high malignancy of colonic adenocarcinoma. Furthermore, miR-206 targets ANXA2 and plays a role as a cancer suppressor in colonic adenocarcinoma. SIGNIFICANCE Our study provided evidence that further elucidates the molecular mechanism of ANXA2 and its roles in colonic adenocarcinoma and suggested potential targets of ANXA2 for colonic adenocarcinoma therapy by using miR-206 as a novel strategy.
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Affiliation(s)
- Li Xiao
- College of Life Sciences, Shaanxi Normal University, 620 West Chang'an Avenue, Xi'an, Shaanxi 710119, China
| | - Huijuan Jin
- College of Life Sciences, Shaanxi Normal University, 620 West Chang'an Avenue, Xi'an, Shaanxi 710119, China
| | - Wei Duan
- School of Medicine, Deakin University, Waurn Ponds, VIC 3216, Australia
| | - Yingchun Hou
- College of Life Sciences, Shaanxi Normal University, 620 West Chang'an Avenue, Xi'an, Shaanxi 710119, China.
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He H, Xiao L, Cheng S, Yang Q, Li J, Hou Y, Song F, Su X, Jin H, Liu Z, Dong J, Zuo R, Song X, Wang Y, Zhang K, Duan W, Hou Y. Annexin A2 Enhances the Progression of Colorectal Cancer and Hepatocarcinoma via Cytoskeleton Structural Rearrangements. MICROSCOPY AND MICROANALYSIS : THE OFFICIAL JOURNAL OF MICROSCOPY SOCIETY OF AMERICA, MICROBEAM ANALYSIS SOCIETY, MICROSCOPICAL SOCIETY OF CANADA 2019; 25:950-960. [PMID: 31172894 DOI: 10.1017/s1431927619000679] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Annexin A2 (ANXA2) is reported to be associated with cancer development. To investigate the roles ANXA2 plays during the development of cancer, the RNAi method was used to inhibit the ANXA2 expression in caco2 (human colorectal cancer cell line) and SMMC7721 (human hepatocarcinoma cell line) cells. The results showed that when the expression of ANXA2 was efficiently inhibited, the growth and motility of both cell lines were significantly decreased, and the development of the motility relevant microstructures, such as pseudopodia, filopodia, and the polymerization of microfilaments and microtubules were obviously inhibited. The cancer cell apoptosis was enhanced without obvious significance. The possible regulating pathway in the process was also predicted and discussed. Our results suggested that ANXA2 plays important roles in maintaining the malignancy of colorectal and hepatic cancer by enhancing the cell proliferation, motility, and development of the motility associated microstructures of cancer cells based on a possible complicated signal pathway.
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Affiliation(s)
- Huimin He
- Department of Cell Biology,College of Life Sciences, Shaanxi Normal University,620 West Chang-An Ave, Xi'an, Shaanxi 710119,China
| | - Li Xiao
- Department of Cell Biology,College of Life Sciences, Shaanxi Normal University,620 West Chang-An Ave, Xi'an, Shaanxi 710119,China
| | - Sinan Cheng
- Department of Cell Biology,College of Life Sciences, Shaanxi Normal University,620 West Chang-An Ave, Xi'an, Shaanxi 710119,China
| | - Qian Yang
- Department of Cell Biology,College of Life Sciences, Shaanxi Normal University,620 West Chang-An Ave, Xi'an, Shaanxi 710119,China
| | - Jinmei Li
- Department of Cell Biology,College of Life Sciences, Shaanxi Normal University,620 West Chang-An Ave, Xi'an, Shaanxi 710119,China
| | - Yifan Hou
- Department of Cell Biology,College of Life Sciences, Shaanxi Normal University,620 West Chang-An Ave, Xi'an, Shaanxi 710119,China
| | - Fengying Song
- Department of Cell Biology,College of Life Sciences, Shaanxi Normal University,620 West Chang-An Ave, Xi'an, Shaanxi 710119,China
| | - Xiaorong Su
- Department of Cell Biology,College of Life Sciences, Shaanxi Normal University,620 West Chang-An Ave, Xi'an, Shaanxi 710119,China
| | - Huijuan Jin
- Department of Cell Biology,College of Life Sciences, Shaanxi Normal University,620 West Chang-An Ave, Xi'an, Shaanxi 710119,China
| | - Zheng Liu
- Department of Cell Biology,College of Life Sciences, Shaanxi Normal University,620 West Chang-An Ave, Xi'an, Shaanxi 710119,China
| | - Jing Dong
- Department of Cell Biology,College of Life Sciences, Shaanxi Normal University,620 West Chang-An Ave, Xi'an, Shaanxi 710119,China
| | - Ruiye Zuo
- Department of Cell Biology,College of Life Sciences, Shaanxi Normal University,620 West Chang-An Ave, Xi'an, Shaanxi 710119,China
| | - Xigui Song
- Department of Cell Biology,College of Life Sciences, Shaanxi Normal University,620 West Chang-An Ave, Xi'an, Shaanxi 710119,China
| | - Yanyan Wang
- Department of Cell Biology,College of Life Sciences, Shaanxi Normal University,620 West Chang-An Ave, Xi'an, Shaanxi 710119,China
| | - Kun Zhang
- Department of Cell Biology,College of Life Sciences, Shaanxi Normal University,620 West Chang-An Ave, Xi'an, Shaanxi 710119,China
| | - Wei Duan
- School of Medicine, Deakin University,Waurn Ponds, VIC 3216,Australia
| | - Yingchun Hou
- Department of Cell Biology,College of Life Sciences, Shaanxi Normal University,620 West Chang-An Ave, Xi'an, Shaanxi 710119,China
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Wan YM, Tian J, Qi L, Liu LM, Xu N. ANXA1 affects cell proliferation, invasion and epithelial-mesenchymal transition of oral squamous cell carcinoma. Exp Ther Med 2017; 14:5214-5218. [PMID: 29201239 DOI: 10.3892/etm.2017.5148] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2016] [Accepted: 06/19/2017] [Indexed: 12/14/2022] Open
Abstract
Annexin A1 (ANXA1) acts either as a tumor suppressor or an oncogene in different tumor types. Several clinical studies revealed that the expression of ANXA1 is associated with the pathologic differentiation grade in oral squamous cell carcinoma (OSCC) patients. However, the direct function of ANXA1 in OSCC progression has remained to be fully clarified. The present study was designed to investigate the role of ANXA1 in OSCC cell proliferation and invasion in vitro. Furthermore, whether ANXA1 was involved in transforming growth factor β1 (TGFβ1)/epidermal growth factor (EGF)-induced epithelial-mesenchymal transition (EMT) in OSCC was explored. Tca-8113 and SCC-9 cells were transfected with ANXA1-pcDNA3.1 plasmid to overexpress ANXA1. Subsequently, cell proliferation and invasion were examined using MTT and Transwell-Matrigel invasion assays. TGFβ1 and EGF were used to induce EMT in Tca-8113 and SCC-9 cells, and the expression of epithelial (E)-cadherin, neural (N)-cadherin and vimentin was determined by western blot analysis. The results demonstrated that ANXA1 overexpression induced a significant decrease of cell growth and invasiveness in Tca-8113 and SCC-9 cells. The expression of E-cadherin was significantly increased, while the expression of vimentin and N-cadherin was significantly decreased in ANXA1-overexpressing Tca-8113 and SCC-9 cells. ANXA1 expression was significantly decreased in TGFβ1/EGF-treated cells. Furthermore TGFβ1/EGF-induced EMT in OSCC cell lines was attenuated by ANXA1 overexpression. In conclusion, to the best of our knowledge, the present study was the first to evidence that ANXA1 inhibits OSCC cell proliferation and invasion in vitro. TGFβ1/EGF-induced EMT was reversed by ANXA1 in OSCC. ANXA1 was suggested to be a potential marker for OSCC as well as a novel treatment.
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Affiliation(s)
- Ying-Ming Wan
- Department of Stomatology, Affiliated Hospital of Jilin Medical University, Jilin 132021, P.R. China
| | - Jing Tian
- Department of Physiology, Jilin Medical University, Jilin 132013, P.R. China
| | - Ling Qi
- Department of Pathology, Jilin Medical University, Jilin 132013, P.R. China
| | - Li-Mei Liu
- Department of Stomatology, Affiliated Hospital of Jilin Medical University, Jilin 132021, P.R. China
| | - Ning Xu
- Department of Stomatology, Affiliated Hospital of Jilin Medical University, Jilin 132021, P.R. China
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Colorectal Cancer: From the Genetic Model to Posttranscriptional Regulation by Noncoding RNAs. BIOMED RESEARCH INTERNATIONAL 2017; 2017:7354260. [PMID: 28573140 PMCID: PMC5442347 DOI: 10.1155/2017/7354260] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/05/2016] [Accepted: 02/16/2017] [Indexed: 12/11/2022]
Abstract
Colorectal cancer is the third most common form of cancer in developed countries and, despite the improvements achieved in its treatment options, remains as one of the main causes of cancer-related death. In this review, we first focus on colorectal carcinogenesis and on the genetic and epigenetic alterations involved. In addition, noncoding RNAs have been shown to be important regulators of gene expression. We present a general overview of what is known about these molecules and their role and dysregulation in cancer, with a special focus on the biogenesis, characteristics, and function of microRNAs. These molecules are important regulators of carcinogenesis, progression, invasion, angiogenesis, and metastases in cancer, including colorectal cancer. For this reason, miRNAs can be used as potential biomarkers for diagnosis, prognosis, and efficacy of chemotherapeutic treatments, or even as therapeutic agents, or as targets by themselves. Thus, this review highlights the importance of miRNAs in the development, progression, diagnosis, and therapy of colorectal cancer and summarizes current therapeutic approaches for the treatment of colorectal cancer.
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Annexin A2 Coordinates STAT3 to Regulate the Invasion and Migration of Colorectal Cancer Cells In Vitro. Gastroenterol Res Pract 2016; 2016:3521453. [PMID: 27274723 PMCID: PMC4870365 DOI: 10.1155/2016/3521453] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/16/2015] [Revised: 02/11/2016] [Accepted: 03/24/2016] [Indexed: 01/01/2023] Open
Abstract
The present study aimed to reveal the expression of STAT3 and Anxa 2 in CRC specimens and to investigate the effects of STAT3 and Anxa 2 signaling on the proliferation, invasion, and migration in CRC Caco-2 cells. Results demonstrated that both Anxa 2 and STAT3 were highly expressed in CRC specimens in both mRNA and protein levels, with or without phosphorylation (Tyrosine 23 in Anxa 2 and Tyrosine 705 in STAT3). And the upregulated Anxa 2 promoted the phosphorylation of STAT3 (Tyrosine 705) in CRC Caco-2 cells. The upregulated Anxa 2 promoted the proliferation, migration, and invasion of Caco-2 cells in vitro. Moreover, the STAT3 knockdown also repressed the proliferation, migration, and invasion of Caco-2 cells. In conclusion, the overexpressed Annexin A2 regulated the proliferation, invasion, and migration in CRC cells in an association with STAT3.
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11
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Peiris D, Ossondo M, Fry S, Loizidou M, Smith-Ravin J, Dwek MV. Identification of O-Linked Glycoproteins Binding to the Lectin Helix pomatia Agglutinin as Markers of Metastatic Colorectal Cancer. PLoS One 2015; 10:e0138345. [PMID: 26495974 PMCID: PMC4619703 DOI: 10.1371/journal.pone.0138345] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2015] [Accepted: 08/28/2015] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Protein glycosylation is an important post-translational modification shown to be altered in all tumour types studied to date. Mucin glycoproteins have been established as important carriers of O-linked glycans but other glycoproteins exhibiting altered glycosylation repertoires have yet to be identified but offer potential as biomarkers for metastatic cancer. METHODOLOGY In this study a glycoproteomic approach was used to identify glycoproteins exhibiting alterations in glycosylation in colorectal cancer and to evaluate the changes in O-linked glycosylation in the context of the p53 and KRAS (codon 12/13) mutation status. Affinity purification with the carbohydrate binding protein from Helix pomatia agglutinin (HPA) was coupled to 2-dimensional gel electrophoresis with mass spectrometry to enable the identification of low abundance O-linked glycoproteins from human colorectal cancer specimens. RESULTS Aberrant O-linked glycosylation was observed to be an early event that occurred irrespective of the p53 and KRAS status and correlating with metastatic colorectal cancer. Affinity purification using the lectin HPA followed by proteomic analysis revealed annexin 4, annexin 5 and CLCA1 to be increased in the metastatic colorectal cancer specimens. The results were validated using a further independent set of specimens and this showed a significant association between the staining score for annexin 4 and HPA and the time to metastasis; independently (annexin A4: Chi square 11.45, P = 0.0007; HPA: Chi square 9.065, P = 0.0026) and in combination (annexin 4 and HPA combined: Chi square 13.47; P = 0.0002). CONCLUSION Glycoproteins showing changes in O-linked glycosylation in metastatic colorectal cancer have been identified. The glycosylation changes were independent of p53 and KRAS status. These proteins offer potential for further exploration as biomarkers and potential targets for metastatic colorectal cancer.
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Affiliation(s)
- Diluka Peiris
- Department of Biomedical Sciences, Faculty of Science and Technology, University of Westminster, London, United Kingdom
| | - Marlène Ossondo
- Universite des Antilles et de la Guyane, Département Scientifique Interfacultaire, EA929 AIHP-GEODE (BIOSPHERES), Campus de Schœlcher, Martinique
| | - Simon Fry
- Department of Biomedical Sciences, Faculty of Science and Technology, University of Westminster, London, United Kingdom
| | - Marilena Loizidou
- Division of Surgery and Interventional Science, University College London School of Life and Medical Sciences, Royal Free Campus, Pond Street, London, United Kingdom
| | - Juliette Smith-Ravin
- Universite des Antilles et de la Guyane, Département Scientifique Interfacultaire, EA929 AIHP-GEODE (BIOSPHERES), Campus de Schœlcher, Martinique
| | - Miriam V. Dwek
- Department of Biomedical Sciences, Faculty of Science and Technology, University of Westminster, London, United Kingdom
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Serum annexin A2 levels in acute brucellosis and brucellar spondylodiscitis. Eur J Clin Microbiol Infect Dis 2014; 33:1855-9. [DOI: 10.1007/s10096-014-2155-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2014] [Accepted: 05/05/2014] [Indexed: 11/27/2022]
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Annexin A2: its molecular regulation and cellular expression in cancer development. DISEASE MARKERS 2014; 2014:308976. [PMID: 24591759 PMCID: PMC3925611 DOI: 10.1155/2014/308976] [Citation(s) in RCA: 92] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 06/29/2013] [Revised: 10/31/2013] [Accepted: 11/01/2013] [Indexed: 01/05/2023]
Abstract
Annexin A2 (ANXA2) orchestrates multiple biologic processes and clinical associations, especially in cancer progression. The structure of ANXA2 affects its cellular localization and function. However, posttranslational modification and protease-mediated N-terminal cleavage also play critical roles in regulating ANXA2. ANXA2 expression levels vary among different types of cancers. With some cancers, ANXA2 can be used for the detection and diagnosis of cancer and for monitoring cancer progression. ANXA2 is also required for drug-resistance. This review discusses the feasibility of ANXA2 which is active in cancer development and can be a therapeutic target in cancer management.
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Zhu DW, Liu Y, Yang X, Yang CZ, Ma J, Yang X, Qiao JK, Wang LZ, Li J, Zhang CP, Zhang ZY, Zhong LP. Low Annexin A1 expression predicts benefit from induction chemotherapy in oral cancer patients with moderate or poor pathologic differentiation grade. BMC Cancer 2013; 13:301. [PMID: 23786757 PMCID: PMC3702430 DOI: 10.1186/1471-2407-13-301] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2013] [Accepted: 06/18/2013] [Indexed: 01/23/2023] Open
Abstract
BACKGROUND The benefit of induction chemotherapy in locally advanced oral squamous cell carcinoma (OSCC) remains to be clearly defined. Induction chemotherapy is likely to be effective for biologically distinct subgroups of patients and biomarker development might lead to identification of the patients whose tumors are to respond to a particular treatment. Annexin A1 may serve as a biomarker for responsiveness to induction chemotherapy. The aim of this study was to investigate Annexin A1 expression in pre-treatment biopsies from a cohort of OSCC patients treated with surgery and post-operative radiotherapy or docetaxel, cisplatin and 5-fluorouracil (TPF) induction chemotherapy followed by surgery and post-operative radiotherapy. Furthermore we sought to assess the utility of Annexin A1 as a prognostic or predictive biomarker. METHODS Immunohistochemical staining for Annexin A1 was performed in pre-treatment biopsies from 232 of 256 clinical stage III/IVA OSCC patients. Annexin A1 index was estimated as the proportion of tumor cells (low and high, <50% and ≥50% of stained cells, respectively) to Annexin A1 cellular membrane and cytoplasm staining. RESULTS There was a significant correlation between Annexin A1 expression and pathologic differentiation grade (P=0.015) in OSCC patients. The proportion of patients with low Annexin A1 expression was significantly higher amongst those with moderate/poorly differentiated tumor (78/167) compared to those with well differentiated tumor (18/65). Multivariate Cox model analysis showed clinical stage (P=0.001) and Annexin A1 expression (P=0.038) as independent prognostic risk factors. Furthermore, a low Annexin A1 expression level was predictive of longer disease-free survival (P=0.036, HR=0.620) and locoregional recurrence-free survival (P=0.031, HR=0.607) compared to high Annexin A1 expression. Patients with moderate/poorly differentiated tumor and low Annexin A1 expression benefited from TPF induction chemotherapy as measured by distant metastasis-free survival (P=0.048, HR=0.373) as well as overall survival (P=0.078, HR=0.410). CONCLUSIONS Annexin A1 can be used as a prognostic biomarker for OSCC. Patients with moderate/poorly differentiated OSCC and low Annexin A1 expression can benefit from the addition of TPF induction chemotherapy to surgery and post-operative radiotherapy. Annexin A1 expression can potentially be used as a predictive biomarker to select OSCC patients with moderate/poorly differentiated tumor who may benefit from TPF induction chemotherapy.
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Affiliation(s)
- Dong-wang Zhu
- Department of Oral & Maxillofacial-Head & Neck Oncology, Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
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15
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Santiago-Gómez A, Barrasa JI, Olmo N, Lecona E, Burghardt H, Palacín M, Lizarbe MA, Turnay J. 4F2hc-silencing impairs tumorigenicity of HeLa cells via modulation of galectin-3 and β-catenin signaling, and MMP-2 expression. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2013; 1833:2045-56. [PMID: 23651923 DOI: 10.1016/j.bbamcr.2013.04.017] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2012] [Revised: 04/29/2013] [Accepted: 04/30/2013] [Indexed: 01/17/2023]
Abstract
4F2hc is a type-II glycoprotein whose covalent-bound association with one of several described light chains yields a heterodimer mainly involved in large neutral amino acid transport. Likewise, it is well known that the heavy chain interacts with β-integrins mediating integrin-dependent events such as survival, proliferation, migration and even transformation. 4F2hc is a ubiquitous protein whose overexpression has been related to tumor development and progression. Stable silencing of 4F2hc in HeLa cells using an artificial miRNA impairs in vivo tumorigenicity and leads to an ineffective proliferation response to mitogens. 4F2hc colocalizes with β1-integrins and CD147, but this interaction does not occur in lipid rafts in HeLa cells. Moreover, silenced cells present defects in integrin- (FAK, Akt and ERK1/2) and hypoxia-dependent signaling, and reduced expression/activity of MMP-2. These alterations seem to be dependent on the inappropriate formation of CD147/4F2hc/β1-integrin heterocomplexes on the cell surface, arising when CD147 cannot interact with 4F2hc. Although extracellular galectin-3 accumulates due to the decrease in MMP-2 activity, galectin-3 signaling events are blocked due to an impaired interaction with 4F2hc, inducing an increased degradation of β-catenin. Furthermore, cell motility is compromised after protein silencing, suggesting that 4F2hc is related to tumor invasion by facilitating cell motility. Therefore, here we propose a molecular mechanism by which 4F2hc participates in tumor progression, favoring first steps of epithelial-mesenchymal transition by inhibition of β-catenin proteasomal degradation through Akt/GSK-3β signaling and enabling cell motility.
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Affiliation(s)
- Angélica Santiago-Gómez
- Departamento de Bioquímica y Biología Molecular I, Facultad de Ciencias Químicas, Universidad Complutense, 28040-Madrid, Spain
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16
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Ceruti P, Principe M, Capello M, Cappello P, Novelli F. Three are better than one: plasminogen receptors as cancer theranostic targets. Exp Hematol Oncol 2013; 2:12. [PMID: 23594883 PMCID: PMC3640925 DOI: 10.1186/2162-3619-2-12] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2013] [Accepted: 03/28/2013] [Indexed: 12/22/2022] Open
Abstract
Activation of plasminogen on the cell surface initiates a cascade of protease activity with important implications for several physiological and pathological events. In particular, components of the plasminogen system participate in tumor growth, invasion and metastasis. Plasminogen receptors are in fact expressed on the cell surface of most tumors, and their expression frequently correlates with cancer diagnosis, survival and prognosis. Notably, they can trigger multiple specific immune responses in cancer patients, highlighting their role as tumor-associated antigens. In this review, three of the most characterized plasminogen receptors involved in tumorigenesis, namely Annexin 2 (ANX2), Cytokeratin 8 (CK8) and alpha-Enolase (ENOA), are analyzed to ascertain an overall view of their role in the most common cancers. This analysis emphasizes the possibility of delineating new personalized therapeutic strategies to counteract tumor growth and metastasis by targeting plasminogen receptors, as well as their potential application as cancer predictors.
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Affiliation(s)
- Patrizia Ceruti
- Center for Experimental Research and Medical Studies (CeRMS), Azienda Ospedaliera Città della Salute e della Scienza, Via Cherasco 15, Turin, 10126, Italy.,Department of Molecular Biotechnology and Health Science, University of Turin, Turin, Italy
| | - Moitza Principe
- Center for Experimental Research and Medical Studies (CeRMS), Azienda Ospedaliera Città della Salute e della Scienza, Via Cherasco 15, Turin, 10126, Italy.,Department of Molecular Biotechnology and Health Science, University of Turin, Turin, Italy
| | - Michela Capello
- Center for Experimental Research and Medical Studies (CeRMS), Azienda Ospedaliera Città della Salute e della Scienza, Via Cherasco 15, Turin, 10126, Italy.,Department of Molecular Biotechnology and Health Science, University of Turin, Turin, Italy
| | - Paola Cappello
- Center for Experimental Research and Medical Studies (CeRMS), Azienda Ospedaliera Città della Salute e della Scienza, Via Cherasco 15, Turin, 10126, Italy.,Department of Molecular Biotechnology and Health Science, University of Turin, Turin, Italy
| | - Francesco Novelli
- Center for Experimental Research and Medical Studies (CeRMS), Azienda Ospedaliera Città della Salute e della Scienza, Via Cherasco 15, Turin, 10126, Italy.,Department of Molecular Biotechnology and Health Science, University of Turin, Turin, Italy
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17
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Zhu DW, Yang X, Yang CZ, Ma J, Liu Y, Yan M, Wang LZ, Li J, Zhang CP, Zhang ZY, Zhong LP. Annexin A1 down-regulation in oral squamous cell carcinoma correlates to pathological differentiation grade. Oral Oncol 2013; 49:542-50. [PMID: 23403091 DOI: 10.1016/j.oraloncology.2013.01.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2012] [Revised: 12/19/2012] [Accepted: 01/05/2013] [Indexed: 01/13/2023]
Abstract
OBJECTIVES Functional role of Annexin A1 in tumorigenesis is poorly understood. The aim of this study was to investigate the relationship between Annexin A1 protein expression and pathological differentiation grade in biopsy samples from a large cohort of patients with oral squamous cell carcinoma (OSCC); and to evaluate the potential role of Annexin A1 on cell proliferation and tumorigenesis of OSCC. MATERIALS AND METHODS We investigated the relationship between Annexin A1 expression by immunohistochemical staining and pathological differentiation grade of biopsy samples from 232 OSCC patients, and the relationship between Annexin A1 expression and cell proliferation as well as tumor formation using both in vitro and in vivo OSCC models. RESULTS Annexin A1 expression correlated significantly with pathological differentiation grade in OSCC patients, a lower Annexin A1 expression correlating with a poorer differentiation grade. Forced Annexin A1 overexpression in OSCC cell lines, CAL27 and Tca8113, significantly reduced the cell proliferation whereas down-regulation of Annexin A1 expression in OSCC cell line, HB96, significantly increased proliferation of HB96 cells. Tumors formed from CAL27 cells overexpressing Annexin A1 grown significantly slower compared to the parental CAL27 cells in nude mice and showed a significantly reduced nuclear Ki-67 labeling index. Interestingly, these tumors also showed a well differentiated histology pattern whereas the tumors formed from the parental cells were consistently moderately differentiated. CONCLUSIONS These data support a significant correlation between Annexin A1 expression and pathological differentiation grade, and a functional role of Annexin A1 in inhibiting cell proliferation and cell differentiation in OSCC.
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Affiliation(s)
- Dong-wang Zhu
- Department of Oral & Maxillofacial-Head & Neck Oncology, Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University, School of Medicine, China
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18
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Zeng J, Yi B, Wang Z, Ning J, Wang X, Lu K. Effect of annexin A2 on hepatopulmonary syndrome rat serum-induced proliferation of pulmonary arterial smooth muscle cells. Respir Physiol Neurobiol 2013; 185:332-8. [DOI: 10.1016/j.resp.2012.09.009] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2012] [Revised: 09/16/2012] [Accepted: 09/18/2012] [Indexed: 01/14/2023]
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19
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Li X, Chen L, Liang XJ, Gao YF, Wang XJ, Xu Q, Yan Y, Gao FL. Annexin A5 protein expression is associated with the histological differentiation of uterine cervical squamous cell carcinoma in patients with an increased serum concentration. Mol Med Rep 2012; 6:1249-54. [PMID: 22971941 DOI: 10.3892/mmr.2012.1078] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2012] [Accepted: 08/22/2012] [Indexed: 11/05/2022] Open
Abstract
Annexin A5 (ANXA5) is a calcium-dependent phospholipid-binding protein belonging to the annexin family and is expressed abnormally in several types of carcinoma. In the present study, ANXA5 protein expression was evaluated by western blot analysis in a series of 60 human uterine cervical squamous cell carcinomas (UCSCCs) to search for molecular alterations that may be able to serve as useful diagnostic/prognostic markers. The upregulation of ANXA5 expression was observed in 48/60 UCSCC cases (80%), whereas a weak expression was observed in the 25 normal uterine cervical tissues. ANXA5 expression was also analyzed by immunohistochemical staining, western blot and reverse transcription-polymerase chain reaction (RT-PCR) assays of the UCSCC and uterine cervical normal tissue lesions. All dysplastic tissues showed significantly increased ANXA5 expression compared with the weak signal observed in normal epithelia. A close association was observed between the ANXA5 expression levels and the histological grade of UCSCC. Compared with moderately and well-differentiated tumors, there was a significant increase in ANXA5 expression in poorly differentiated tumors. Furthermore, ANXA5 concentrations in the blood serum of the patients were significantly increased. Our findings clearly identify ANXA5 as an effective differentiation marker for the histopathological grading of UCSCCs and for the detection of epithelial dysplasia. The results from our study support the critical role of ANXA5 in the molecular profiling of UCSCC.
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Affiliation(s)
- Xin Li
- Basic Research Institution, Chengde Medical College, Chengde, P.R. China
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20
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Barrasa JI, Santiago-Gómez A, Olmo N, Lizarbe MA, Turnay J. Resistance to butyrate impairs bile acid-induced apoptosis in human colon adenocarcinoma cells via up-regulation of Bcl-2 and inactivation of Bax. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2012; 1823:2201-9. [PMID: 22917577 DOI: 10.1016/j.bbamcr.2012.08.008] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2012] [Revised: 07/26/2012] [Accepted: 08/09/2012] [Indexed: 12/22/2022]
Abstract
A critical risk factor in colorectal carcinogenesis and tumor therapy is the resistance to the apoptotic effects of different compounds from the intestinal lumen, among them butyrate (main regulator of colonic epithelium homeostasis). Insensitivity to butyrate-induced apoptosis yields resistance to other agents, as bile acids or chemotherapy drugs, allowing the selective growth of malignant cell subpopulations. Here we analyze bile acid-induced apoptosis in a butyrate-resistant human colon adenocarcinoma cell line (BCS-TC2.BR2) to determine the mechanisms that underlay the resistance to these agents in comparison with their parental butyrate-sensitive BCS-TC2 cells. This study demonstrates that DCA and CDCA still induce apoptosis in butyrate-resistant cells through increased ROS production by activation of membrane-associated enzymes and subsequent triggering of the intrinsic mitochondrial apoptotic pathway. Although this mechanism is similar to that described in butyrate-sensitive cells, cell viability is significantly higher in resistant cells. Moreover, butyrate-resistant cells show higher Bcl-2 levels that confer resistance to bile acid-induced apoptosis sequestering Bax and avoiding Bax-dependent pore formation in the mitochondria. We have confirmed that this resistance is reverted using the Bcl-2 inhibitor ABT-263, thus demonstrating that the lower sensitivity of butyrate-resistant cells to the apoptotic effects of bile acids is mainly due to increased Bcl-2 levels.
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Affiliation(s)
- Juan I Barrasa
- Departamento de Bioquímica y Biología Molecular I, Facultad de Ciencias Químicas, Universidad Complutense, 28040-Madrid, Spain
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21
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A transcriptional regulatory role of the THAP11-HCF-1 complex in colon cancer cell function. Mol Cell Biol 2012; 32:1654-70. [PMID: 22371484 DOI: 10.1128/mcb.06033-11] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
The recently identified Thanatos-associated protein (THAP) domain is an atypical zinc finger motif with sequence-specific DNA-binding activity. Emerging data suggest that THAP proteins may function in chromatin-dependent processes, including transcriptional regulation, but the roles of most THAP proteins in normal and aberrant cellular processes remain largely unknown. In this work, we identify THAP11 as a transcriptional regulator differentially expressed in human colon cancer. Immunohistochemical analysis of human colon cancers revealed increased THAP11 expression in both primary tumors and metastases. Knockdown of THAP11 in SW620 colon cancer cells resulted in a significant decrease in cell proliferation, and profiling of gene expression in these cells identified a novel gene set composed of 80 differentially expressed genes, 70% of which were derepressed by THAP11 knockdown. THAP11 was found to associate physically with the transcriptional coregulator HCF-1 (host cell factor 1) and recruit HCF-1 to target promoters. Importantly, THAP11-mediated gene regulation and its chromatin association require HCF-1, while HCF-1 recruitment at these genes requires THAP11. Collectively, these data provide the first characterization of THAP11-dependent gene expression in human colon cancer cells and suggest that the THAP11-HCF-1 complex may be an important transcriptional and cell growth regulator in human colon cancer.
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22
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Zong J, Guo C, Liu S, Sun MZ, Tang J. Proteomic research progress in lymphatic metastases of cancers. Clin Transl Oncol 2012; 14:21-30. [DOI: 10.1007/s12094-012-0757-7] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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23
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Ignacio Barrasa J, Olmo N, Pérez-Ramos P, Santiago-Gómez A, Lecona E, Turnay J, Antonia Lizarbe M. Deoxycholic and chenodeoxycholic bile acids induce apoptosis via oxidative stress in human colon adenocarcinoma cells. Apoptosis 2012; 16:1054-67. [PMID: 21789651 DOI: 10.1007/s10495-011-0633-x] [Citation(s) in RCA: 81] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The continuous exposure of the colonic epithelium to high concentrations of bile acids may exert cytotoxic effects and has been related to pathogenesis of colon cancer. A better knowledge of the mechanisms by which bile acids induce toxicity is still required and may be useful for the development of new therapeutic strategies. We have studied the effect of deoxycholic acid (DCA) and chenodeoxycholic acid (CDCA) treatments in BCS-TC2 human colon adenocarcinoma cells. Both bile acids promote cell death, being this effect higher for CDCA. Apoptosis is detected after 30 min-2 h of treatment, as observed by cell detachment, loss of membrane asymmetry, internucleosomal DNA degradation, appearance of mitochondrial transition permeability (MPT), and caspase and Bax activation. At longer treatment times, apoptosis is followed in vitro by secondary necrosis due to impaired mitochondrial activity and ATP depletion. Bile acid-induced apoptosis is a result of oxidative stress with increased ROS generation mainly by activation of plasma membrane enzymes, such as NAD(P)H oxidases and, to a lower extent, PLA2. These effects lead to a loss of mitochondrial potential and release of pro-apoptotic factors to the cytosol, which is confirmed by activation of caspase-9 and -3, but not caspase-8. This initial apoptotic steps promote cleavage of Bcl-2, allowing Bax activation and formation of additional pores in the mitochondrial membrane that amplify the apoptotic signal.
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Affiliation(s)
- Juan Ignacio Barrasa
- Departamento de Bioquímica y Biología Molecular I, Facultad de Ciencias Químicas, Universidad Complutense, 28040, Madrid, Spain
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Zhang XN, Zhang XY, Cao XH. Advances in understanding the relationship between annexin A1 and gastrointestinal cancer. Shijie Huaren Xiaohua Zazhi 2011; 19:2160-2165. [DOI: 10.11569/wcjd.v19.i20.2160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Annexin A1 is a member of the annexin family of calcium-dependent phospholipid-binding proteins and participates in many important life processes, such as cellular signal transduction, proliferation, differentiation and apoptosis. Recent studies have shown that the expression levels of annexin A1 vary among different tumor tissues and different tumor subtypes and may be associated with the development, invasion and metastasis of malignant tumors. Understanding the relationship between annexin A1 and tumors has important implications for the early diagnosis and treatment of tumors.
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25
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Padidar S, Farquharson AJ, Williams LM, Hoggard N, Reid MD, Duncan GJ, Drew JE. Impact of obesity and leptin on protein expression profiles in mouse colon. Dig Dis Sci 2011; 56:1028-36. [PMID: 20824498 DOI: 10.1007/s10620-010-1394-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/12/2010] [Accepted: 08/11/2010] [Indexed: 01/04/2023]
Abstract
BACKGROUND Elevated leptin levels in obesity are associated with increased risk of colon pathology, implicating leptin signaling in colon disease. However, leptin-regulated processes in the colon are currently uncharacterized. Previously, we demonstrated that leptin receptors are expressed on colon epithelium and that increased adiposity and elevated plasma leptin in rats are associated with perturbed metabolism in colon tissue. Thus, we hypothesize that obesity disrupts expression of proteins regulated by leptin in the colon. METHODS A proteomic analysis was conducted to investigate firstly, differences in the colon of mice lacking leptin and leptin signaling (ob/ob and db/db, respectively) by comparing protein expression profiles with wild-type mice. Secondly, responses to leptin challenge in wild-type mice and ob/ob mice were compared to identify leptin-regulated proteins and associated cellular processes. RESULTS Forty proteins were identified with significantly altered expression patterns associated with differences in leptin status in comparisons between all groups of mice. These proteins are associated with calcium binding, cell cycle, cell proliferation, electron transport chain, energy metabolism, protein folding and transport, redox regulation, structural proteins, and proteins involved in transport and regulation of mucus production. CONCLUSIONS This study provides evidence that obesity and leptin significantly alter protein profiles of a number of proteins linked to cellular processes in colon tissues that may be linked to the increased risk of colon pathology associated with obesity.
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Affiliation(s)
- Sara Padidar
- Molecular Nutrition Group, Rowett Institute of Nutrition and Health, University of Aberdeen, Greenburn Road, Bucksburn, Aberdeen, AB21 9SB, Scotland, UK
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26
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Prediction and testing of biological networks underlying intestinal cancer. PLoS One 2010; 5. [PMID: 20824133 PMCID: PMC2931697 DOI: 10.1371/journal.pone.0012497] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2010] [Accepted: 07/26/2010] [Indexed: 11/19/2022] Open
Abstract
Colorectal cancer progresses through an accumulation of somatic mutations, some of which reside in so-called "driver" genes that provide a growth advantage to the tumor. To identify points of intersection between driver gene pathways, we implemented a network analysis framework using protein interactions to predict likely connections--both precedented and novel--between key driver genes in cancer. We applied the framework to find significant connections between two genes, Apc and Cdkn1a (p21), known to be synergistic in tumorigenesis in mouse models. We then assessed the functional coherence of the resulting Apc-Cdkn1a network by engineering in vivo single node perturbations of the network: mouse models mutated individually at Apc (Apc(1638N+/-)) or Cdkn1a (Cdkn1a(-/-)), followed by measurements of protein and gene expression changes in intestinal epithelial tissue. We hypothesized that if the predicted network is biologically coherent (functional), then the predicted nodes should associate more specifically with dysregulated genes and proteins than stochastically selected genes and proteins. The predicted Apc-Cdkn1a network was significantly perturbed at the mRNA-level by both single gene knockouts, and the predictions were also strongly supported based on physical proximity and mRNA coexpression of proteomic targets. These results support the functional coherence of the proposed Apc-Cdkn1a network and also demonstrate how network-based predictions can be statistically tested using high-throughput biological data.
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27
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Santandreu FM, Oliver J, Roca P. Improvement of mitochondrial energy and oxidative balance during intestinal differentiation. Mitochondrion 2010; 11:89-96. [PMID: 20696280 DOI: 10.1016/j.mito.2010.07.013] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2010] [Revised: 07/05/2010] [Accepted: 07/23/2010] [Indexed: 02/01/2023]
Abstract
Mitochondria vary in their number and function, but how these variations are associated with intestinal cell differentiation remains elusive. The object of this study was to investigate the underlying mechanisms of inosine-mediated intestinal cell maturation, analysing the effects of this nutrient on metabolic functionality, mitochondrial biogenesis and mitochondrial function in human colonic cells. The role of oxidative stress in the control of intestinal cell growth was also explored. We report the novel finding that inosine-mediated differentiation improves aerobic metabolism through an increase in mitochondrial bioenergetics and biogenesis in colonic cells, which probably confers them greater resistance to cytotoxic oxidative stress.
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Affiliation(s)
- Francisca M Santandreu
- Grupo Multidisciplinar de Oncología Traslacional, Institut Universitari d'Investigació en Ciències de la Salut, Universitat de les Illes Balears, Palma de Mallorca, Illes Balears, Spain
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28
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Bol-Schoenmakers M, Fiechter D, Raaben W, Hassing I, Bleumink R, Kruijswijk D, Maijoor K, Tersteeg-Zijderveld M, Brands R, Pieters R. Intestinal alkaline phosphatase contributes to the reduction of severe intestinal epithelial damage. Eur J Pharmacol 2010; 633:71-7. [DOI: 10.1016/j.ejphar.2010.01.023] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2009] [Revised: 12/21/2009] [Accepted: 01/26/2010] [Indexed: 01/17/2023]
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Expression of annexin a5 is associated with higher tumor stage and poor prognosis in colorectal adenocarcinomas. J Clin Gastroenterol 2009; 43:831-7. [PMID: 19461527 DOI: 10.1097/mcg.0b013e31819cc731] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
GOALS To gain an insight into the putative role of annexin A5 (ANXA5) in the tumor stage and its clinical outcome. BACKGROUND ANXA5 is a calcium-binding protein, which has been implicated in the carcinogenesis of several carcinomas. However, the role of ANXA5 in colorectal cancer (CRC) is unclear. STUDY We investigated the expression of ANXA5 in colorectal adenocarcinoma. This study included 207 consecutive patients with sporadic CRC. Paired colorectal tissue samples and corresponding nonmalignant tissues were obtained by surgical resection. ANXA5 mRNA and protein expression in each tissue were assessed by real-time reverse transcriptase polymerase chain reaction (RT-PCR) and immunohistochemical staining. Data were statistically correlated with pathologic parameters and clinical outcome. RESULTS Real-time reverse transcriptase polymerase chain reaction showed that there is an up-regulation in the mRNA level of ANXA5 in tumors (P<0.001). Immunohistochemical study revealed that high ANXA5 expression was present in 40.58% (84 of 207) of tumors. Univariate analysis showed increased ANXA5 expression correlated with pT stage (P=0.008), liver metastasis (P=0.024), pathologic tumor-node-metastasis stage (P=0.015), Dukes' stage (P=0.017), recurrence (P=0.024), cancer-related death (P=0.028), recurrence-free probability (P=0.003), and overall survival (P=0.005). Multivariate analysis showed that ANXA5 expression and liver metastasis significantly correlated with recurrence-free probability (P=0.039 and P=0.048, respectively) and overall survival (P=0.012 and P=0.021, respectively) independent of pT stage and pN stage. CONCLUSIONS From these findings ANXA5 expression seems to be related to the tumor stage and clinical outcome of CRC. Thus ANXA5 could serve as a prognostic marker for tumor progression.
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Candela M, Biagi E, Turroni S, Vitali B, Brigidi P. Mechanisms involved in the intestinal interaction between host and bifidobacteria. MICROBIAL ECOLOGY IN HEALTH AND DISEASE 2009. [DOI: 10.1080/08910600802333483] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Marco Candela
- Department of Pharmaceutical Sciences, CIRB-Center for Biotechnology, University of Bologna, Bologna, Italy
| | - Elena Biagi
- Department of Pharmaceutical Sciences, CIRB-Center for Biotechnology, University of Bologna, Bologna, Italy
| | - Sivia Turroni
- Department of Pharmaceutical Sciences, CIRB-Center for Biotechnology, University of Bologna, Bologna, Italy
| | - Beatrice Vitali
- Department of Pharmaceutical Sciences, CIRB-Center for Biotechnology, University of Bologna, Bologna, Italy
| | - Patrizia Brigidi
- Department of Pharmaceutical Sciences, CIRB-Center for Biotechnology, University of Bologna, Bologna, Italy
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Turnay J, Guzmán-Aránguez A, Lecona E, Barrasa JI, Olmo N, Lizarbe MA. Key role of the N-terminus of chicken annexin A5 in vesicle aggregation. Protein Sci 2009; 18:1095-106. [PMID: 19388055 PMCID: PMC2771311 DOI: 10.1002/pro.119] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2008] [Accepted: 02/27/2009] [Indexed: 11/12/2022]
Abstract
Annexins are calcium-dependent phospholipid-binding proteins involved in calcium signaling and intracellular membrane trafficking among other functions. Vesicle aggregation is a crucial event to make possible the membrane remodeling but this process is energetically unfavorable, and phospholipid membranes do not aggregate and fuse spontaneously. This issue can be circumvented by the presence of different agents such as divalent cations and/or proteins, among them some annexins. Although human annexin A5 lacks the ability to aggregate vesicles, here we demonstrate that its highly similar chicken ortholog induces aggregation of vesicles containing acidic phospholipids even at low protein and/or calcium concentration by establishment of protein dimers. Our experiments show that the ability to aggregate vesicles mainly resides in the N-terminus as truncation of the N-terminus of chicken annexin A5 significantly decreases this process and replacement of the N-terminus of human annexin A5 by that of chicken switches on aggregation; in both cases, there are no changes in the overall protein structure and only minor changes in phospholipid binding. Electrostatic repulsions between negatively charged residues in the concave face of the molecule, mainly in the N-terminus, seem to be responsible for the impairment of dimer formation in human annexin A5. Taking into account that chicken annexin A5 presents a high sequence and structural similarity with mammalian annexins absent in birds, as annexins A3 and A4, some of the physiological functions exerted by these proteins may be carried out by chicken annexin A5, even those that could require calcium-dependent membrane aggregation.
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Affiliation(s)
| | | | | | | | | | - Ma Antonia Lizarbe
- Departamento de Bioquímica y Biología Molecular I, Facultad de Ciencias Químicas, Universidad Complutense28040-Madrid, Spain
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Nomura H, Uzawa K, Yamano Y, Fushimi K, Nakashima D, Kouzu Y, Kasamatsu A, Ogawara K, Shiiba M, Bukawa H, Yokoe H, Tanzawa H. Down-regulation of plasma membranous Annexin A1 protein expression in premalignant and malignant lesions of the oral cavity: correlation with epithelial differentiation. J Cancer Res Clin Oncol 2008; 135:943-9. [PMID: 19101730 DOI: 10.1007/s00432-008-0530-z] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2008] [Accepted: 12/02/2008] [Indexed: 01/22/2023]
Abstract
PURPOSE To determine the potential involvement of ANXA1 in oral squamous-cell carcinoma (OSCC), we evaluated the ANXA1 protein expression in oral premalignant lesions (OPLs) and OSCCs and correlated the results with clinicopathologic variables. METHODS Matched normal and tumour specimens of 44 primary OSCCs and 28 OPLs were analyzed for ANXA1 subcellular localization and protein expression level by immunohistochemistry (IHC). Correlations between ANXA1-IHC staining scores of OSCCs and clinicopathologic features were evaluated by Fisher's exact test. RESULTS Markedly down-regulation of ANXA1 protein expression was identified on the plasma membrane of epithelial cells in OSCCs (P < 0.001) and OPLs (P = 0.001) compared with normal counterparts. Moreover, loss of plasma membranous ANXA1 expression was significantly correlated with the poorly differentiated status of OSCC cells (P = 0.012). CONCLUSIONS Our findings suggest that loss of ANXA1 is frequent and early event during oral carcinogenesis and that ANXA1 could contribute to maintaining epithelial differentiation in OSCC.
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Affiliation(s)
- Hitomi Nomura
- Department of Clinical Molecular Biology, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba, 260-8670, Japan
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Comparative proteomics and molecular mechanical analysis in CDA-II induced therapy of LCI-D20 hepatocellular carcinoma model. J Cancer Res Clin Oncol 2008; 135:591-602. [PMID: 18853186 DOI: 10.1007/s00432-008-0493-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2007] [Accepted: 09/21/2008] [Indexed: 01/13/2023]
Abstract
PURPOSE To investigate the differential proteins and related molecular mechanism of CDA-II (cell differentiation agent-II) induced therapy on a human hepatocellular carcinoma model in nude mice with high metastatic potential (LCI-D20). METHODS After tumors were transplanted 11 days, mice were intraperitoneally injected with CDA-II (1,800 mg/kg) for 20 days continuously. The tumor growth-inhibitory efficiency in CDA-II treated groups was calculated. Proteins extracted from tumor tissue were separated by two-dimensional gel electrophoresis (2DE) and the differential proteins were identified by matrix assisted laser desorption/ionization-time of flight mass spectrometry (MALDI-TOF-MS). Western blotting (WB) was performed to verify the expression of certain candidate proteins. Reverse transcription-polymerase chain reaction (RT-PCR) was engaged to study the molecular mechanism of the therapy. RESULTS CDA-II suppressed the growth and metastasis of tumor. The tumor growth-inhibitory efficiency was 41.8%. In total, 27 differentially expressed proteins were identified, including HSP27, UGDH, CK8, Hsp60, ENOA and AnxA5, with functions involved in oncogene expression and/or cell differentiation. In addition, apparent alternations of HSP60 and beta-actin expression levels and their different posttranslational modifications (PTMs) were investigated. RT-PCR analysis confirmed that the cancer related genes c-myc, N-ras and MMP-9 were significantly down-regulated. CONCLUSION Our results demonstrate that CDA-II presence can change the proteome profiling and favors of the tumor suppression in LCI-D20 cell differentiation. Our results also suggest that the dynamic PTM of HSP60 expression levels could be used to predict HCC and might be a promising and useful biomarker to prognosticate CDA-II therapeutic efficacy.
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Distaso A, Abatangelo L, Maglietta R, Creanza TM, Piepoli A, Carella M, D'Addabbo A, Ancona N. Biological and functional analysis of statistically significant pathways deregulated in colon cancer by using gene expression profiles. Int J Biol Sci 2008; 4:368-78. [PMID: 18953405 PMCID: PMC2567814 DOI: 10.7150/ijbs.4.368] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2008] [Accepted: 10/07/2008] [Indexed: 01/07/2023] Open
Abstract
Gene expression profiling offers a great opportunity for studying multi-factor diseases and for understanding the key role of genes in mechanisms which drive a normal cell to a cancer state. Single gene analysis is insufficient to describe the complex perturbations responsible for cancer onset, progression and invasion. A deeper understanding of the mechanisms of tumorigenesis can be reached focusing on deregulation of gene sets or pathways rather than on individual genes. We apply two known and statistically well founded methods for finding pathways and biological processes deregulated in pathological conditions by analyzing gene expression profiles. In particular, we measure the amount of deregulation and assess the statistical significance of predefined pathways belonging to a curated collection (Molecular Signature Database) in a colon cancer data set. We find that pathways strongly involved in different tumors are strictly connected with colon cancer. Moreover, our experimental results show that the study of complex diseases through pathway analysis is able to highlight genes weakly connected to the phenotype which may be difficult to detect by using classical univariate statistics. Our study shows the importance of using gene sets rather than single genes for understanding the main biological processes and pathways involved in colorectal cancer. Our analysis evidences that many of the genes involved in these pathways are strongly associated to colorectal tumorigenesis. In this new perspective, the focus shifts from finding differentially expressed genes to identifying biological processes, cellular functions and pathways perturbed in the phenotypic conditions by analyzing genes co-expressed in a given pathway as a whole, taking into account the possible interactions among them and, more importantly, the correlation of their expression with the phenotypical conditions.
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Affiliation(s)
- Angela Distaso
- Istituto di Studi sui Sistemi Intelligenti per l'Automazione, CNR, Via Amendola 122/D-I, 70126 Bari, Italy
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Zhang L, Yang X, Zhong LP, Zhou XJ, Pan HY, Wei KJ, Li J, Chen WT, Zhang ZY. Decreased expression of Annexin A1 correlates with pathologic differentiation grade in oral squamous cell carcinoma. J Oral Pathol Med 2008; 38:362-70. [PMID: 18673418 DOI: 10.1111/j.1600-0714.2008.00678.x] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Previously, we established an in vitro cellular carcinogenesis model of oral squamous cell carcinoma (OSCC), including the human immortalized oral epithelia cells (HIOECs) and its derived cancerous HB96 cells. In this study, comparative proteomic analysis identified that Annexin A1 was one of the significantly down-regulated genes in the cancerous HB96 cells. To investigate Annexin A1 down-regulation and its potential usefulness as a molecular marker in OSCC, we further screened Annexin A1 expressions with a panel of OSCC lines, and clinical samples of cancerous and the paired adjacent normal tissues from primary OSCC patients. By Western blot analysis and real-time PCR, we showed that both Annexin A1 mRNA and protein expressions decreased in OSCC cell lines except in two cell lines for the mRNA levels. Immunohistochemistry and real-time PCR also showed that both Annexin A1 mRNA and protein expressions decreased in the cancerous tissues from OSCC patients compared with those in the paired adjacent non-malignant epithelia. More importantly, both Annexin A1 mRNA and protein expressions negatively correlated with the pathologic differentiation grades of cancerous tissues. The lower Annexin A1 mRNA or protein expressions correlated with the poorer pathologic differentiation grades. These results suggest that decreased expression of Annexin A1 contributes to the cancerous progression of OSCC, and Annexin A1 may be a potential biomarker for pathologic differentiation grade of OSCC.
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Affiliation(s)
- Lei Zhang
- Department of Oral and Maxillofacial Surgery, Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
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Upregulation of annexin A1 expression by butyrate in human colon adenocarcinoma cells: role of p53, NF-Y, and p38 mitogen-activated protein kinase. Mol Cell Biol 2008; 28:4665-74. [PMID: 18541673 DOI: 10.1128/mcb.00650-07] [Citation(s) in RCA: 62] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Annexin A1 is a member of a phospholipid and calcium binding family of proteins; it is involved in anti-inflammation and in the regulation of differentiation, proliferation, and apoptosis. Here, we show the existence of a functional binding site for the tumor suppressor p53 near the proximal CCAAT box and the fact that the basal expression of annexin A1 in human colon adenocarcinoma cells is driven by p53 at the transcriptional level. Posttranscriptional mechanisms may also play an important role in maintaining constitutive annexin A1 expression. In addition, a p53/NF-Y complex is detected bound to the p53 binding site on its promoter. Butyrate is a natural product of fiber degradation in the colon and a key regulator of colonic epithelium homeostasis. We show that butyrate, a class I and II histone deacetylase inhibitor, induces transcriptional activation of annexin A1 expression correlated with differentiation. The effect of butyrate is mediated through a release of NF-Y from the proximal CCAAT box and an enhancement of p53 binding. The interaction of p53 with the promoter is dependent on p38 MAPK activity either in the absence or in the presence of butyrate. Further, activation of p38 MAPK by this agent is required to increase annexin A1 promoter activity and to increase protein expression.
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Yue QX, Cao ZW, Guan SH, Liu XH, Tao L, Wu WY, Li YX, Yang PY, Liu X, Guo DA. Proteomics Characterization of the Cytotoxicity Mechanism of Ganoderic Acid D and Computer-automated Estimation of the Possible Drug Target Network. Mol Cell Proteomics 2008; 7:949-61. [DOI: 10.1074/mcp.m700259-mcp200] [Citation(s) in RCA: 146] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
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Kim JY, Kim DY, Ro JY. Granule formation in NGF-cultured mast cells is associated with expressions of pyruvate kinase type M2 and annexin I proteins. Int Arch Allergy Immunol 2008; 146:287-97. [PMID: 18362474 DOI: 10.1159/000121463] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2007] [Accepted: 11/27/2007] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Nerve growth factor (NGF) is a potent mediator, which regulates characteristics of mast cells, but its biological function is not well characterized. This study aimed to screen proteins associated with the maturation of human mast cells-1 (HMC-1) or mouse bone marrow-derived mast cells (BMMCs) cultured with NGF, and to examine the functions of proteins involved. METHODS NGF (10 ng/ml) was added to cell culture medium every other day for 10 days for HMC-1 or twice a week for 5 weeks for BMMCs. Granule formation was determined by electron microscopy or May-Grunwald-Giemsa staining, TNF-alpha by ELISA, expressions of various proteins by two-dimensional gel electrophoresis (2-DE), siRNA transfection by Lipofectamine 2000, and the expressions of pyruvate kinase and annexin I by immunoblotting. RESULTS After NGF treatment, granule formation and total amounts of granular mediator, TNF-alpha increased in both mast cells. This TNF-alpha was released by calcium ionophore or by antigen/antibody reaction. Expressions of pyruvate kinase and annexin I obtained by 2-DE were confirmed by immunoblotting and siRNA-transfected HMC-1 cells. Expressions of proteins, granule formation and TNF-alpha content were blocked by both the TrkA inhibitor, K252a, and the ERK inhibitor, PD98059, but not by the PI3 kinase inhibitors, LY294002 and wortmannin. CONCLUSION These data suggest that pyruvate kinase and annexin I expressed by NGF contribute to granule formation containing TNF-alpha as well as other mediators in mast cells, which play a major role in allergic diseases via a TrkA/ERK pathway.
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Affiliation(s)
- Ji Young Kim
- Department of Pharmacology and Samsung Biomedical Research Institute, Sungkyunkwan University School of Medicine, Suwon, Korea
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Physiological concentrations of short-chain fatty acids immediately suppress colonic epithelial permeability. Br J Nutr 2008; 100:297-305. [PMID: 18346306 DOI: 10.1017/s0007114508888733] [Citation(s) in RCA: 242] [Impact Index Per Article: 15.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Colonic fermentation products, SCFA, have various effects on colonic functions. Here, we found that physiological concentrations of SCFA immediately promote epithelial barrier function in the large intestine. Solutions of mixed and individual SCFA were applied to the caecal walls mounted on Ussing-type chambers. Transepithelial electrical resistance (TER) increased rapidly and reached a peak 35 % higher than that in the control specimen within 10 min post application of the SCFA mixture (80 acetate, 40 propionate, 20 butyrate (mmol/l)). The Lucifer yellow permeability, a paracellular transport marker, was dose-dependently reduced by the mixed SCFA, acetate and propionate solutions. Inhibition of monocarboxylate transporter-1 did not influence the increase in TER with acetate; however, lowering the pH (from 7.5 to 5.5) clearly enhanced the effect of acetate. Non-metabolizable, bromo and chloro derivatives of SCFA also increased TER. These results suggest that passive diffusion of SCFA is dominant and the metabolism of SCFA is not required for the promotive effect of SCFA on barrier function. We also observed that individual SCFA dose-dependently increased TER in T84 and Caco-2 cells, which indicates that SCFA directly stimulate epithelial cells. Depletion of membrane cholesterol and inhibitors of phosphatidylinositol-3 kinase and Gq protein attenuated the acetate-mediated promotive effect. Finally, we found that the mucosal application of the SCFA mixture dose-dependently suppressed [3H] mannitol transport from the caecal lumen to the mesenteric blood in the anaesthetized rats. We conclude that physiological concentrations of SCFA immediately enhance barrier function of the colonic epithelium through cholesterol-rich microdomain in the plasma membrane.
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Lecona E, Olmo N, Turnay J, Santiago-Gómez A, López De Silanes I, Gorospe M, Lizarbe MA. Kinetic analysis of butyrate transport in human colon adenocarcinoma cells reveals two different carrier-mediated mechanisms. Biochem J 2008; 409:311-20. [PMID: 17760565 PMCID: PMC8486429 DOI: 10.1042/bj20070374] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Butyrate has antitumorigenic effects on colon cancer cells, inhibits cell growth and promotes differentiation and apoptosis. These effects depend on its intracellular concentration, which is regulated by its transport. We have analysed butyrate uptake kinetics in human colon adenocarcinoma cells sensitive to the apoptotic effects of butyrate (BCS-TC2, Caco-2 and HT-29), in butyrate-resistant cells (BCS-TC2.BR2) and in normal colonic cells (FHC). The properties of transport were analysed with structural analogues, specific inhibitors and different bicarbonate and sodium concentrations. Two carrier-mediated mechanisms were detected: a low-affinity/high-capacity (K(m)=109+/-16 mM in BCS-TC2 cells) anion exchanger and a high-affinity/low-capacity (K(m)=17.9+/-4.0 microM in BCS-TC2 cells) proton-monocarboxylate co-transporter that was energy-dependent and activated via PKCdelta (protein kinase Cdelta). All adenocarcinoma cells analysed express MCT (monocarboxylate transporter) 1, MCT4, ancillary protein CD147 and AE2 (anion exchanger 2). Silencing experiments show that MCT1, whose expression increases with butyrate treatment in butyrate-sensitive cells, plays a key role in high-affinity transport. Low-affinity uptake was mediated by a butyrate/bicarbonate antiporter along with a possible contribution of AE2 and MCT4. Butyrate treatment increased uptake in a time- and dose-dependent manner in butyrate-sensitive but not in butyrate-resistant cells. The two butyrate-uptake activities in human colon adenocarcinoma cells enable butyrate transport at different physiological conditions to maintain cell functionality. The high-affinity/low-capacity transport functions under low butyrate concentrations and may be relevant for the survival of carcinoma cells in tumour regions with low glucose and butyrate availability as well as for the normal physiology of colonocytes.
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Affiliation(s)
- Emilio Lecona
- Department of Biochemistry and Molecular Biology I, Faculty of Chemistry, Complutense University, 28040 Madrid, Spain
| | - Nieves Olmo
- Department of Biochemistry and Molecular Biology I, Faculty of Chemistry, Complutense University, 28040 Madrid, Spain
| | - Javier Turnay
- Department of Biochemistry and Molecular Biology I, Faculty of Chemistry, Complutense University, 28040 Madrid, Spain
| | - Angélica Santiago-Gómez
- Department of Biochemistry and Molecular Biology I, Faculty of Chemistry, Complutense University, 28040 Madrid, Spain
| | - Isabel López De Silanes
- Laboratory of Cellular and Molecular Biology, National Institute on Aging – Intramural Research Program, NIH (National Institutes of Health), Baltimore, MD 21224, U.S.A
| | - Myriam Gorospe
- Laboratory of Cellular and Molecular Biology, National Institute on Aging – Intramural Research Program, NIH (National Institutes of Health), Baltimore, MD 21224, U.S.A
| | - M. Antonia Lizarbe
- Department of Biochemistry and Molecular Biology I, Faculty of Chemistry, Complutense University, 28040 Madrid, Spain
- To whom correspondence should be addressed ()
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Duncan R, Carpenter B, Main LC, Telfer C, Murray GI. Characterisation and protein expression profiling of annexins in colorectal cancer. Br J Cancer 2007; 98:426-33. [PMID: 18071363 PMCID: PMC2361450 DOI: 10.1038/sj.bjc.6604128] [Citation(s) in RCA: 174] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
The annexins are family of calcium-regulated phospholipid-binding proteins with diverse roles in cell biology. Individual annexins have been implicated in tumour development and progression, and in this investigation a range of annexins have been studied in colorectal cancer. Annexins A1, A2, A4 and A11 were identified by comparative proteomic analysis to be overexpressed in colorectal cancer. Annexins A1, A2, A4 and A11 were further studied by immunohistochemistry with a colorectal cancer tissue microarray containing primary and metastatic colorectal cancer and also normal colon. There was significant increase in expression in annexins A1 (P=0.01), A2 (P<0.001), A4 (P<0.001) and A11 (P<0.001) in primary tumours compared with normal colon. There was increasing expression of annexins A2 (P=0.001), A4 (P=0.03) and A11 (P=0.006) with increasing tumour stage. An annexin expression profile was identified by k-means cluster analysis, and the annexin profile was associated with tumour stage (P=0.01) and also patient survival. Patients in annexin cluster group 1 (low annexin expression) had a better survival (log rank=5.33, P=0.02) than patients in cluster group 2 (high annexins A4 and A11 expression). In conclusion, this study has shown that individual annexins are present in colorectal cancer, specific annexins are overexpressed in colorectal cancer and the annexin expression profile is associated with survival.
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Affiliation(s)
- R Duncan
- Department of Pathology, University of Aberdeen, Aberdeen, UK
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Cui L, Wang Y, Shi Y, Zhang Z, Xia Y, Sun H, Wang S, Chen J, Zhang W, Lu Q, Song L, Wei Q, Zhang R, Wang X. Overexpression of annexin a1 induced by terephthalic acid calculi in rat bladder cancer. Proteomics 2007; 7:4192-202. [DOI: 10.1002/pmic.200700582] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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McBee JK, Yu LR, Kinoshita Y, Uo T, Beyer RP, Veenstra TD, Morrison RS. Proteomic analysis of protein expression changes in a model of gliomagenesis. Proteomics Clin Appl 2007; 1:1485-98. [PMID: 21136645 DOI: 10.1002/prca.200700292] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Loss of p53 function is a common event in a variety of human cancers including tumors of glial origin. Using an in vitro mouse model of malignant astrocyte transformation, three cleavable isotope coded affinity tag (cICAT) experiments were performed comparing cultured wild-type astrocytes and two p53(-/-) astrocyte cultures before and after malignant transformation. We identified and quantitated an average of 1366 proteins per experiment and demonstrated that the protein quantitation ratios in each individual cICAT experiment correlated well to ratios determined in the other two studies. These data were further supported by microarray analysis which also correlated to changes in protein expression. The results showed significant changes in protein expression in association with malignant transformation. Proteins overexpressed in malignant astrocytes were typically involved in ribosome biogenesis/protein synthesis and DNA replication, while underexpressed proteins were generally associated with the regulation of cell cycle checkpoint control, tumor suppression, and apoptosis. Among the significantly up-regulated proteins and transcripts in malignant mouse astrocytes were members of the minichromosome maintenance (MCM) family. Western blot analysis verified increased expression of MCM proteins in malignant human astrocytoma cell lines, which had not previously been described. These results demonstrate the usefulness of the cICAT approach for comparing differences in protein expression profiles between normal and malignant cells.
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Affiliation(s)
- Joshua K McBee
- Department of Neurological Surgery, University of Washington School of Medicine, Seattle, WA, USA; Institute for Systems Biology, Seattle, WA, USA
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Puxeddu E, Susta F, Orvietani PL, Chiasserini D, Barbi F, Moretti S, Cavaliere A, Santeusanio F, Avenia N, Binaglia L. Identification of differentially expressed proteins in papillary thyroid carcinomas with V600E mutation of BRAF. Proteomics Clin Appl 2007; 1:672-80. [DOI: 10.1002/prca.200600776] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2006] [Indexed: 11/11/2022]
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Pei H, Zhu H, Zeng S, Li Y, Yang H, Shen L, Chen J, Zeng L, Fan J, Li X, Gong Y, Shen H. Proteome analysis and tissue microarray for profiling protein markers associated with lymph node metastasis in colorectal cancer. J Proteome Res 2007; 6:2495-501. [PMID: 17542627 DOI: 10.1021/pr060644r] [Citation(s) in RCA: 87] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
BACKGROUND Understanding the proteins associated with lymph node metastasis (LNM) in colorectal cancer (CRC) will benefit us in the prediction of CRC prognosis and provide us new potential targets in the intervention of CRC. The aim of this study is to investigate the LNM-associated proteins and to evaluate the clinicopathological characteristics of these target proteins' expression in CRC. METHODS Fresh tumor and paired normal mucosa from five cases for each group of non-LNM CRC and LNM CRC were analyzed by two-dimensional electrophoresis coupled with MALDI-TOF-MS, followed by Western blotting confirmation. In 40 paraffin-embedded CRC samples, each for non-LNM CRC and LNM CRC, four differentially expressed proteins identified by proteomics analysis were detected by tissue microarray with immunohistochemistry staining to access the clinicopathological characteristics of these proteins in LNM of CRC. RESULTS Twenty-five proteins were found to be differentially expressed between normal mucosa and CRC tissue. Increased expression levels of heat shock protein-27 (HSP-27), glutathione S-transferase (GST), and Annexin II, but a decreased expression level of liver-fatty acid binding protein (L-FABP), existed in LNM CRC as compared with non-LNM CRC (p<0.01 or p<0.05, respectively). CONCLUSION The techniques of proteomic analysis combined with tissue microarray provide us a dramatic tool for screening of LNM-associated proteins in cancer research. The increased expression of HSP-27, GST, and Annexin II, but decreased expression of L-FABP, suggests a significantly elevated incidence of LNM in CRC.
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Affiliation(s)
- Haiping Pei
- Department of General Surgery, Xiangya Hospital, Central South University, Changsha, Hunan, China
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de Bont JM, den Boer ML, Kros JM, Passier MMCJ, Reddingius RE, Smitt PAES, Luider TM, Pieters R. Identification of Novel Biomarkers in Pediatric Primitive Neuroectodermal Tumors and Ependymomas by Proteome-Wide Analysis. J Neuropathol Exp Neurol 2007; 66:505-16. [PMID: 17549010 DOI: 10.1097/01.jnen.0000240475.35414.c3] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
The aim of this study was to identify aberrantly expressed proteins in pediatric primitive neuroectodermal tumors (PNETs) and ependymomas. Tumor tissue of 29 PNET and 12 ependymoma patients was subjected to 2-dimensional difference gel electrophoresis. Gel analysis resulted in 79 protein spots being differentially expressed between PNETs and ependymomas (p < 0.01, fold change difference in expression >2). Three proteins, stathmin, annexin A1, and calcyphosine, were chosen for validation by immunohistochemistry. Stathmin was expressed 2.6-fold higher in PNETs than in ependymomas, and annexin A1 and calcyphosine were expressed 2.5- and 37.6-fold higher, respectively, in ependymomas. All PNETs showed strong staining for stathmin, and all ependymomas were strongly positive for annexin A1, whereas control tissues were negative. Calcyphosine immunoreactivity was observed in 59% of the ependymomas and was most profound in ependymoma tissue showing epithelial differentiation. mRNA expression levels of stathmin, annexin A1, and calcyphosine significantly correlated (Rs = 0.65 [p < 0.0001], Rs = 0.50 [p = 0.001], and Rs = 0.72 [p < 0.0001], respectively) with protein expression levels. In conclusion, using a proteome-wide approach, stathmin, annexin A1, and calcyphosine were successfully identified as tumor-specific proteins in pediatric PNETs and ependymomas. Ongoing studies are focused on characterizing the role of these proteins as tumor markers and potential drug targets in pediatric brain tumors.
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Affiliation(s)
- Judith M de Bont
- Department of Pediatric Oncology, Erasmus MC-University Medical Center, Rotterdam, The Netherlands
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Chaturvedi P, Singh AP, Moniaux N, Senapati S, Chakraborty S, Meza JL, Batra SK. MUC4 Mucin Potentiates Pancreatic Tumor Cell Proliferation, Survival, and Invasive Properties and Interferes with Its Interaction to Extracellular Matrix Proteins. Mol Cancer Res 2007; 5:309-20. [PMID: 17406026 DOI: 10.1158/1541-7786.mcr-06-0353] [Citation(s) in RCA: 126] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
MUC4, a transmembrane mucin, is aberrantly expressed in pancreatic adenocarcinomas while remaining undetectable in the normal pancreas. Recent studies have shown that the expression of MUC4 is associated with the progression of pancreatic cancer and is inversely correlated with the prognosis of pancreatic cancer patients. In the present study, we have examined the phenotypic and molecular consequences of MUC4 silencing with an aim of establishing the mechanistic basis for its observed role in the pathogenesis of pancreatic cancer. The silencing of MUC4 expression was achieved by stable expression of a MUC4-specific short hairpin RNA in CD18/HPAF, a highly metastatic pancreatic adenocarcinoma cell line. A significant decrease in MUC4 expression was detected in MUC4-knockdown (CD18/HPAF-siMUC4) cells compared with the parental and scrambled short interfering RNA-transfected (CD18/HPAF-Scr) control cells by immunoblot analysis and immunofluorescence confocal microscopy. Consistent with our previous observation, inhibition of MUC4 expression restrained the pancreatic tumor cell growth and metastasis as shown in an orthotopic mouse model. Our in vitro studies revealed that MUC4-associated increase in tumor cell growth resulted from both the enhanced proliferation and reduced cell death. Furthermore, MUC4 expression was also associated with significantly increased invasiveness (P < or = 0.05) and changes in actin organization. The presence of MUC4 on the cell surface was shown to interfere with the tumor cell-extracellular matrix interactions, in part, by inhibiting the integrin-mediated cell adhesion. An altered expression of growth- and metastasis-associated genes (LI-cadherin, CEACAM6, RAC1, AnnexinA1, thrombomodulin, epiregulin, S100A4, TP53, TP53BP, caspase-2, caspase-3, caspase-7, plakoglobin, and neuregulin-2) was also observed as a consequence of the silencing of MUC4. In conclusion, our study provides experimental evidence that supports the functional significance of MUC4 in pancreatic cancer progression and indicates a novel role for MUC4 in cancer cell signaling.
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Affiliation(s)
- Pallavi Chaturvedi
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, 985870 Nebraska Medical Center, Omaha, NE 68198-5870, USA
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Olmo N, Turnay J, Lecona E, García-Díez M, Llorente B, Santiago-Gómez A, Lizarbe MA. Acquisition of resistance to butyrate induces resistance to luminal components and other types of stress in human colon adenocarcinoma cells. Toxicol In Vitro 2007; 21:254-61. [PMID: 17084587 DOI: 10.1016/j.tiv.2006.09.010] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2006] [Revised: 09/11/2006] [Accepted: 09/14/2006] [Indexed: 10/24/2022]
Abstract
Butyrate, naturally produced by anaerobic fermentation of diet-fiber, is the major nutrient of colonocytes and also an important regulator of colonic epithelium renewal and physiology. Other luminal components, such as bile acids or bacterial products, influence these processes. The model system we used to analyze the influence of several luminal stressors is composed of a previously established cell line resistant to the apoptotic effects of butyrate and their parental butyrate-sensitive cells. Viability of butyrate-resistant cells is unaffected by mild heat-shock (2h, 42 degrees C) and only slightly reduced by severe heat-shock (2h, 45 degrees C) in contrast to their butyrate-sensitive counterparts. The higher constitutive expression of HSP70 and HSP60 could contribute to this resistance. In addition, expression of HSP70 follows a different pattern after heat-shock in both cell lines. Butyrate-resistant cells are quite unaffected by treatment with deoxycholic acid but apoptosis is induced by chenodeoxycholic acid although to a lower extent than in butyrate-sensitive cells. These resistant cells are also less sensitive to lipopolysaccharide and show differences regarding the activation of ERK following osmotic stress. Thus, the cell model herein reported is a useful tool for investigating the molecular mechanisms of resistance to apoptosis, as well as to analyze specific targets for butyrate-resistant tumors.
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Affiliation(s)
- N Olmo
- Departamento de Bioquímica y Biología Molecular I, Universidad Complutense, Madrid, Spain
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Demasi MAA, Montor WR, Ferreira GB, Pimenta DC, Labriola L, Sogayar MC. Differential proteomic analysis of the anti-proliferative effect of glucocorticoid hormones in ST1 rat glioma cells. J Steroid Biochem Mol Biol 2007; 103:137-48. [PMID: 17127050 DOI: 10.1016/j.jsbmb.2006.08.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/30/2005] [Accepted: 08/17/2006] [Indexed: 02/02/2023]
Abstract
Glucocorticoid hormones (GCs) exert a potent anti-proliferative activity on several cell types. The classic molecular mechanism of GCs involves modulation of the activity of the glucocorticoids receptor, a transcriptional regulator. However, the anti-proliferative effect of GCs may also involve modulation of processes such as translation, subcellular localization and post-translational modifications, which are not reflected at the mRNA level. To investigate these potential effects of GCs, we employed the proteomic approach (two-dimensional electrophoresis and mass spectrometry) and the ST1 cells, obtained from the C6 rat glioma cell line, as a model. GC treatment leads ST1 cells to a complete transformed-to-normal phenotypic reversion and loss of their tumorigenic potential. By comparing sets of 2D nuclear protein profiles of ST1 cells treated (or not) with hydrocortisone (Hy), 13 polypeptides displaying >or=two-fold difference in abundance upon Hy treatment were found. Five of these polypeptides were identified by peptide mass fingerprinting, including Annexin 2 (ANX2), hnRNP A3 and Ubiquitin. Evidence obtained by Western blot analysis indicates that ANX2 is present in the nucleus and has its subcellular localization modulated by GC-treatment of ST1 cells. Our findings indicate complementary mechanisms contributing to the regulation of gene expression associated with ST1 cells' response to GCs.
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Affiliation(s)
- Marcos A A Demasi
- Instituto de Química, Universidade de São Paulo, 05508-900 SP, São Paulo, Brazil
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50
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Singh P. Role of Annexin-II in GI cancers: interaction with gastrins/progastrins. Cancer Lett 2006; 252:19-35. [PMID: 17188424 PMCID: PMC1941619 DOI: 10.1016/j.canlet.2006.11.012] [Citation(s) in RCA: 64] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2006] [Accepted: 11/06/2006] [Indexed: 12/27/2022]
Abstract
The role of the gastrin peptide hormones (G17, G34) and their precursors (progastrins, PG; gly-extended gastrin, G-gly), in gastrointestinal (GI) cancers has been extensively reviewed in recent years [W. Rengifo-Cam, P. Singh, Role of progastrins and gastrins and their receptors in GI and pancreatic cancers: targets for treatment, Curr. Pharm. Des. 10 (19) (2004) 2345-2358; M. Dufresne, C. Seva, D. Fourmy, Cholecystokinin and gastrin receptors, Physiol. Rev. 86 (3) (2006) 805-847; A. Ferrand, T.C. Wang, Gastrin and cancer: a review, Cancer Lett. 238 (1) (2006) 15-29]. A possible important role of progastrin peptides in colon carcinogenesis has become evident from experiments with transgenic mouse models [W. Rengifo-Cam, P. Singh, (2004); A. Ferrand, T.C. Wang, (2006)]. It is now known that growth stimulatory and co-carcinogenic effects of gastrin/PG peptides are mediated by both proliferative and anti-apoptotic effects of the peptides on target cells [H. Wu, G.N. Rao, B. Dai, P. Singh, Autocrine gastrins in colon cancer cells Up-regulate cytochrome c oxidase Vb and down-regulate efflux of cytochrome c and activation of caspase-3, J. Biol. Chem. 275 (42) (2000) 32491-32498; H. Wu, A. Owlia, P. Singh, Precursor peptide progastrin(1-80) reduces apoptosis of intestinal epithelial cells and upregulates cytochrome c oxidase Vb levels and synthesis of ATP, Am. J. Physiol. Gastrointest. Liver Physiol. 285 (6) (2003) G1097-G1110]. Several receptor subtypes have been described that mediate growth effects of gastrin peptides [W. Rengifo-Cam, P. Singh (2004); M. Dufresne, C. Seva, D. Fourmy, (2006)]. Recently, we identified Annexin II as a high affinity binding protein for gastrin/PG peptides [P. Singh, H. Wu, C. Clark, A. Owlia, Annexin II binds progastrin and gastrin-like peptides, and mediates growth factor effects of autocrine and exogenous gastrins on colon cancer and intestinal epithelial cells, Oncogene (2006), doi:10.1038/sj.onc.1209798]. Importantly, the expression of Annexin II was required for mediating growth stimulatory effects of gastrin and PG peptides on intestinal epithelial and colon cancer cells [P. Singh, H. Wu, C. Clark, A. Owlia, Annexin II binds progastrin and gastrin-like peptides, and mediates growth factor effects of autocrine and exogenous gastrins on colon cancer and intestinal epithelial cells, Oncogene (2006), doi:10.1038/sj.onc.1209798], suggesting that Annexin-II may represent the elusive novel receptor for gastrin/PG peptides. The importance of this finding in relation to the structure and function of Annexin-II, especially in GI cancers, is described below. Since this surprising finding represents a new front in our understanding of the mechanisms involved in mediating growth effects of gastrin/PG peptides in GI cancers, our current understanding of the role of Annexin-II in proliferation and metastasis of cancer cells is additionally reviewed.
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Affiliation(s)
- Pomila Singh
- Department of Neuroscience and Cell Biology, 10.104 Medical Research Building, Route 1043, University of Texas Medical Branch, 301University Blvd., Mail Route 1043, Galveston, TX 77555-1043, USA.
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