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Sanlav G, Baran B, Kum Özşengezer S, Kizmazoğlu D, Altun Z, Aktaş S, Olgun N. S-100 and MATH-1 Protein Expressions Can Be Useful for the Prediction of Clinical Outcome in Neuroblastoma Patients. J Pediatr Hematol Oncol 2024; 46:21-28. [PMID: 37943051 DOI: 10.1097/mph.0000000000002783] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Accepted: 10/06/2023] [Indexed: 11/10/2023]
Abstract
Neuroblastoma (NB) is the most frequent extracranial solid tumor of childhood, remarkable for its broad spectrum of clinical behavior. This diversity in behavior correlates closely with defined clinical and biological features and combinations of prognostic variables are used for risk-group assignment. S-100 proteins have roles in differentiation and were shown to be frequently dysregulated in NB. MATH-1 protein plays role in neuronal cell differentiation through development. However, up to date, there are no studies evaluating the relationship between MATH-1 and NB. Grb2-associated binding (Gab) proteins have roles in the regulation of cell growth and differentiation. Gab1 was reported to be related to poor survival of high-risk NB patients. The aim of this study was to investigate the relationship between differentiation-related S-100, MATH-1, and Gab1 proteins and risk group and/or stages of NB. A significant relation was found between S-100 and early stages of NB. This study also revealed a significant association between MATH-1 and low-risk groups. S-100 and MATH-1 were also shown to provide survival advantages among stages and risk groups. The findings of this study support the assumption that S-100 and MATH-1 can be potential prognostic biomarkers for staging and risk-group assignment of NB patients. These proteins can be useful tools for clinicians to guide through treatment options, especially for the evaluation of tumor differentiation.
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Affiliation(s)
| | | | | | - Deniz Kizmazoğlu
- Pediatric Oncology, Dokuz Eylul University Institute of Oncology, İzmir, Turkey
| | | | | | - Nur Olgun
- Pediatric Oncology, Dokuz Eylul University Institute of Oncology, İzmir, Turkey
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Centrón-Broco A, Rossi F, Grelloni C, Garraffo R, Dattilo D, Giuliani A, Di Timoteo G, Colantoni A, Bozzoni I, Beltran Nebot M. CircAFF1 Is a Circular RNA with a Role in Alveolar Rhabdomyosarcoma Cell Migration. Biomedicines 2023; 11:1893. [PMID: 37509532 PMCID: PMC10376778 DOI: 10.3390/biomedicines11071893] [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: 05/09/2023] [Revised: 06/22/2023] [Accepted: 06/28/2023] [Indexed: 07/30/2023] Open
Abstract
Circular RNAs (circRNAs), covalently closed RNAs that originate from back-splicing events, participate in the control of several processes, including those that occur in the development of pathological conditions such as cancer. Hereby, we describe circAFF1, a circular RNA overexpressed in alveolar rhabdomyosarcoma. Using RH4 and RH30 cell lines, a classical cell line models for alveolar rhabdomyosarcoma, we demonstrated that circAFF1 is a cytoplasmatic circRNA and its depletion impacts cell homeostasis favouring cell migration through the downregulation of genes involved in cell adhesion pathways. The presented data underline the importance of this circular RNA as a new partial suppressor of the alveolar rhabdomyosarcoma tumour progression and as a putative future therapeutic target.
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Affiliation(s)
- Alvaro Centrón-Broco
- Department of Biology and Biotechnology Charles Darwin, Sapienza University of Rome, 00185 Rome, Italy
| | - Francesca Rossi
- The Babraham Institute, Babraham Research Campus, Cambridge CB22 3AT, UK
| | - Chiara Grelloni
- Department of Biology and Biotechnology Charles Darwin, Sapienza University of Rome, 00185 Rome, Italy
| | - Raffaele Garraffo
- Department of Biology and Biotechnology Charles Darwin, Sapienza University of Rome, 00185 Rome, Italy
| | - Dario Dattilo
- Department of Biology and Biotechnology Charles Darwin, Sapienza University of Rome, 00185 Rome, Italy
| | - Andrea Giuliani
- Department of Biology and Biotechnology Charles Darwin, Sapienza University of Rome, 00185 Rome, Italy
| | - Gaia Di Timoteo
- Department of Biology and Biotechnology Charles Darwin, Sapienza University of Rome, 00185 Rome, Italy
| | - Alessio Colantoni
- Department of Biology and Biotechnology Charles Darwin, Sapienza University of Rome, 00185 Rome, Italy
- Center for Life Nano- & Neuro-Science, Fondazione Istituto Italiano di Tecnologia (IIT), 00161 Rome, Italy
| | - Irene Bozzoni
- Department of Biology and Biotechnology Charles Darwin, Sapienza University of Rome, 00185 Rome, Italy
- Center for Life Nano- & Neuro-Science, Fondazione Istituto Italiano di Tecnologia (IIT), 00161 Rome, Italy
| | - Manuel Beltran Nebot
- Department of Biology and Biotechnology Charles Darwin, Sapienza University of Rome, 00185 Rome, Italy
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Zhang J, Wang Z, Liang Z, Jin C, Shi Y, Fan M, Hu X, Wan Y. NFIC1 inhibits the migration and invasion of MDA-MB-231 cells through S100A2-mediated inactivation of MEK/ERK pathway. Arch Biochem Biophys 2023; 734:109497. [PMID: 36574914 DOI: 10.1016/j.abb.2022.109497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 11/30/2022] [Accepted: 12/16/2022] [Indexed: 12/25/2022]
Abstract
NFIC is a potent transcriptional factor involved in many physiological and pathological processes, including tumorigenesis. However, the role of NFIC1, the longest isoform of NFIC, in the progression of triple negative breast cancer (TNBC) remains elusive. Our study demonstrates that overexpression of NFIC1 inhibits the migration and invasion of TNBC MDA-MB-231 cells. NFIC1 regulates the expression of S100A2, and knockdown of S100A2 reverses the inhibitive effects of NFIC1 on the migration and invasion of MDA-MB-231 cells. Furthermore, knockdown of S100A2 activates the MEK/ERK signaling transduction pathway that is inhibited by NFIC1 overexperssion. Treatment with MEK/ERK pathway inhibitor, U0126, abolishes the effects of S100A2 knockdown. In addition, overexpression of NFIC1 in MDA-MB-231 cells increases the expression of epithelial markers and decreases the expression of mesenchymal markers, and these effects could also be reversed by knockdown of S100A2. Collectively, these results demonstrate that NFIC1 inhibits the Epithelial-mesenchymal transition (EMT) of MDA-MB-231 cells by regulating S100A2 expression, which suppress the activation of MEK/ERK pathway. Therefore, our study confirms the role of NFIC1 as a tumor repressor in TNBC, and reveals the molecular mechanism through which NFIC1 inhibits the migration and invasion of MDA-MB-231 cells.
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Affiliation(s)
- Jing Zhang
- China-Japan Union Hospital of Jilin University, Jilin University, Changchun, Jilin, 130033, China; School of Life Sciences, Jilin University, Changchun, Jilin, 130012, China
| | - Zhaoying Wang
- China-Japan Union Hospital of Jilin University, Jilin University, Changchun, Jilin, 130033, China; School of Life Sciences, Jilin University, Changchun, Jilin, 130012, China
| | - Zehua Liang
- China-Japan Union Hospital of Jilin University, Jilin University, Changchun, Jilin, 130033, China
| | - Chanjuan Jin
- China-Japan Union Hospital of Jilin University, Jilin University, Changchun, Jilin, 130033, China
| | - Yueru Shi
- China-Japan Union Hospital of Jilin University, Jilin University, Changchun, Jilin, 130033, China
| | - Mingyue Fan
- China-Japan Union Hospital of Jilin University, Jilin University, Changchun, Jilin, 130033, China; School of Life Sciences, Jilin University, Changchun, Jilin, 130012, China
| | - Xin Hu
- China-Japan Union Hospital of Jilin University, Jilin University, Changchun, Jilin, 130033, China
| | - Youzhong Wan
- China-Japan Union Hospital of Jilin University, Jilin University, Changchun, Jilin, 130033, China.
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Influence of S100A2 in Human Diseases. Diagnostics (Basel) 2022; 12:diagnostics12071756. [PMID: 35885660 PMCID: PMC9316160 DOI: 10.3390/diagnostics12071756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Revised: 07/13/2022] [Accepted: 07/19/2022] [Indexed: 11/18/2022] Open
Abstract
S100 proteins are a family of low-molecular-weight proteins characterized by two calcium-binding sites with a helix-loop-helix (“EF-hand-type”) domain. The S100 family of proteins is distributed across various organs and can interact with diverse molecules. Among the proteins of the S100 family, S100 calcium-binding protein A2 (S100A2) has been identified in mammary epithelial cells, glands, lungs, kidneys, and prostate gland, exhibiting various physiological and pathological actions in human disorders, such as inflammatory diseases and malignant tumors. In this review, we introduce basic knowledge regarding S100A2 regulatory mechanisms. Although S100A2 is a tumor suppressor, we describe the various influences of S100A2 on cancer and inflammatory diseases.
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Zhang Y, Yang X, Zhu XL, Bai H, Wang ZZ, Zhang JJ, Hao CY, Duan HB. S100A gene family: immune-related prognostic biomarkers and therapeutic targets for low-grade glioma. Aging (Albany NY) 2021; 13:15459-15478. [PMID: 34148033 PMCID: PMC8221329 DOI: 10.18632/aging.203103] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Accepted: 05/13/2021] [Indexed: 02/06/2023]
Abstract
BACKGROUND Despite the better prognosis given by surgical resection and chemotherapy in low-grade glioma (LGG), progressive transformation is still a huge concern. In this case, the S100A gene family, being capable of regulating inflammatory responses, can promote tumor development. METHODS The analysis was carried out via ONCOMINE, GEPIA, cBioPortal, String, GeneMANIA, WebGestalt, LinkedOmics, TIMER, CGGA, R 4.0.2 and immunohistochemistry. RESULTS S100A2, S100A6, S100A10, S100A11, and S100A16 were up-regulated and S100A1 and S100A13 were down-regulated in LGG compared to normal tissues. S100A3, S100A4, S100A8, and S100A9 expression was up-regulated during the progression of glioma grade. In addition, genetic variation of the S100A family was high in LGG, and the S100A family genes mostly function through IL-17 signaling pathway, S100 binding protein, and inflammatory responses. The TIMER database also revealed a relationship between gene expression and immune cell infiltration. High expression of S100A2, S100A3, S100A4, S100A6, S100A8, S100A9, S100A10, S100A11, S100A13, and S100A16 was significantly associated with poor prognosis in LGG patients. S100A family genes S100A2, S100A3, S100A6, S100A10, and S100A11 may be prognosis-related genes in LGG, and were significantly associated with IDH mutation and 1p19q codeletion. The immunohistochemical staining results also confirmed that S100A2, S100A3, S100A6, S100A10, and S100A11 expression was upregulated in LGG. CONCLUSION The S100A family plays a vital role in LGG pathogenesis, presumably facilitating LGG progression via modulating inflammatory state and immune cell infiltration.
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Affiliation(s)
- Yu Zhang
- Department of Neurosurgery, First Hospital of Shanxi Medical University, Taiyuan 030001, Shanxi, P.R. China
| | - Xin Yang
- Department of Neurosurgery, First Hospital of Shanxi Medical University, Taiyuan 030001, Shanxi, P.R. China
| | - Xiao-Lin Zhu
- Department of Neurosurgery, First Hospital of Shanxi Medical University, Taiyuan 030001, Shanxi, P.R. China
| | - Hao Bai
- Department of Neurosurgery, First Hospital of Shanxi Medical University, Taiyuan 030001, Shanxi, P.R. China
| | - Zhuang-Zhuang Wang
- Department of Neurosurgery, First Hospital of Shanxi Medical University, Taiyuan 030001, Shanxi, P.R. China
| | - Jun-Jie Zhang
- Department of Neurosurgery, First Hospital of Shanxi Medical University, Taiyuan 030001, Shanxi, P.R. China
| | - Chun-Yan Hao
- Department of Geriatrics, First Hospital of Shanxi Medical University, Taiyuan 030001, Shanxi, P.R. China
| | - Hu-Bin Duan
- Department of Neurosurgery, First Hospital of Shanxi Medical University, Taiyuan 030001, Shanxi, P.R. China.,Department of Neurosurgery, Lvliang People's Hospital, Lvliang 033000, Shanxi, P.R. China
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Brenner AK, Bruserud Ø. S100 Proteins in Acute Myeloid Leukemia. Neoplasia 2018; 20:1175-1186. [PMID: 30366122 PMCID: PMC6215056 DOI: 10.1016/j.neo.2018.09.007] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Revised: 09/24/2018] [Accepted: 09/27/2018] [Indexed: 01/02/2023] Open
Abstract
The S100 protein family contains 20 functionally expressed members, which are commonly dysregulated in cancer. Their wide range of functions includes cell proliferation, cell differentiation, regulation of transcription factors, inflammation, chemotaxis, and angiogenesis. S100 proteins have in several types of cancer proven to be biomarkers for disease progression and prognosis. Acute myeloid leukemia (AML) is a highly heterogeneous and aggressive disease in which immature myeloblasts replace normal hematopoietic cells in the bone marrow. This review focuses on the S100 protein family members, which commonly are dysregulated in AML, and on the consequences of their dysregulation in the disorder. Like in other cancers, it appears as if S100 proteins are potential biomarkers for leukemogenesis. Furthermore, several S100 members seem to be involved in maintaining the leukemic phenotype. For these reasons, specific S100 proteins might serve as prognostic biomarkers, especially in the patient subset with intermediate/undetermined risk, and as potential targets for patient-adjusted therapy. Because the question of the most suitable candidate S100 biomarkers in AML still is under discussion, because particular AML subgroups lead to specific S100 signatures, and because downstream effects and the significance of co-expression of potential S100 binding partners in AML are not fully elucidated yet, we conclude that a panel of S100 proteins will probably be best suited for prognostic purposes.
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Affiliation(s)
- Annette K Brenner
- Department of Medicine, Haukeland University Hospital, P.O. Box 1400, 5021 Bergen, Norway; Section for Hematology, Department of Clinical Science, University of Bergen, P.O. Box 7804, 5020 Bergen, Norway
| | - Øystein Bruserud
- Department of Medicine, Haukeland University Hospital, P.O. Box 1400, 5021 Bergen, Norway; Section for Hematology, Department of Clinical Science, University of Bergen, P.O. Box 7804, 5020 Bergen, Norway.
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Pan SC, Li CY, Kuo CY, Kuo YZ, Fang WY, Huang YH, Hsieh TC, Kao HY, Kuo Y, Kang YR, Tsai WC, Tsai ST, Wu LW. The p53-S100A2 Positive Feedback Loop Negatively Regulates Epithelialization in Cutaneous Wound Healing. Sci Rep 2018; 8:5458. [PMID: 29615682 PMCID: PMC5882638 DOI: 10.1038/s41598-018-23697-5] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Accepted: 03/19/2018] [Indexed: 11/29/2022] Open
Abstract
The S100A2 protein is an important regulator of keratinocyte differentiation, but its role in wound healing remains unknown. We establish epithelial-specific S100A2 transgenic (TG) mice and study its role in wound repair using punch biopsy wounding assays. In line with the observed increase in proliferation and migration of S100A2-depleted human keratinocytes, mice expressing human S100A2 exhibit delayed cutaneous wound repair. This was accompanied by the reduction of re-epithelialization as well as a slow, attenuated response of Mcp1, Il6, Il1β, Cox2, and Tnf mRNA expression in the early phase. We also observed delayed Vegfa mRNA induction, a delayed enhancement of the Tgfβ1-mediated alpha smooth muscle actin (α-Sma) axis and a differential expression of collagen type 1 and 3. The stress-activated p53 tumor suppressor protein plays an important role in cutaneous wound healing and is an S100A2 inducer. Notably, S100A2 complexes with p53, potentiates p53-mediated transcription and increases p53 expression both transcriptionally and posttranscriptionally. Consistent with a role of p53 in repressing NF-κB-mediated transcriptional activation, S100A2 enhanced p53-mediated promoter suppression of Cox2, an early inducible NF-κB target gene upon wound injury. Our study thus supports a model in which the p53-S100A2 positive feedback loop regulates wound repair process.
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Affiliation(s)
- Shin-Chen Pan
- Department of Surgery, Section of Plastic and Reconstructive Surgery, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan, Republic of China
| | - Che-Yu Li
- Institute of Molecular Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan, Republic of China
| | - Chia-Yi Kuo
- Institute of Molecular Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan, Republic of China
| | - Yi-Zih Kuo
- Department of Otolaryngology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan, Republic of China
| | - Wei-Yu Fang
- Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, Tainan, Taiwan, Republic of China
| | - Yu-Hsuan Huang
- Institute of Molecular Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan, Republic of China
| | - Tzu-Chin Hsieh
- Institute of Molecular Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan, Republic of China
| | - Hung-Ying Kao
- Department of Biochemistry, School of Medicine, Case Western Reserve University, Cleveland, OH, USA
| | - Yuan Kuo
- Institute of Oral Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan, Republic of China
| | - Ya-Rong Kang
- Institute of Molecular Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan, Republic of China
| | - Wan-Chi Tsai
- Department of Laboratory Science and Technology, College of Health Science, Kaohsiung Medical University, Kaohsiung, Taiwan, Republic of China
| | - Sen-Tien Tsai
- Department of Otolaryngology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan, Republic of China. .,Department of Radiation Oncology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Taiwan, Republic of China.
| | - Li-Wha Wu
- Institute of Molecular Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan, Republic of China. .,Department of Laboratory Science and Technology, College of Health Science, Kaohsiung Medical University, Kaohsiung, Taiwan, Republic of China.
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Rivera C, Oliveira AK, Costa RAP, De Rossi T, Paes Leme AF. Prognostic biomarkers in oral squamous cell carcinoma: A systematic review. Oral Oncol 2017; 72:38-47. [DOI: 10.1016/j.oraloncology.2017.07.003] [Citation(s) in RCA: 111] [Impact Index Per Article: 15.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2016] [Revised: 06/21/2017] [Accepted: 07/04/2017] [Indexed: 12/11/2022]
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Expression of S100A11 is a Prognostic Factor for Disease-free Survival and Overall Survival in Patients With High-grade Serous Ovarian Cancer. Appl Immunohistochem Mol Morphol 2017; 25:110-116. [PMID: 26574635 DOI: 10.1097/pai.0000000000000275] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
S100A11 is a calcium-binding protein implicated in a variety of biological functions and is overexpressed in many human cancers. However, S100A11 expression level in ovarian cancer has not been well characterized. High-grade serous ovarian cancer (HGSC) is the most common and lethal type of ovarian cancer. The aim of the present study was to investigate S100A11 expression and its clinical significance in HGSC. S100A11 expression was evaluated by Western blot in 45 snap-frozen specimens (15 normal ovarian epithelia, 15 normal fallopian tube epithelia, and 15 HGSCs) and by immunohistochemistry in 211 paraffin-embedded specimens (40 normal fallopian tube epithelia, 54 normal ovarian epithelia, and 117 HGSCs). S100A11 expression was extremely elevated in HGSC compared with normal epithelial tissues and was positively correlated with FIGO stage (P=0.014), ascitic fluid volume (P=0.009), and residual disease (P=0.004) of HGSC patients. Higher S100A11 expression was associated with poorer disease-free (P=0.004) and overall (P=0.006) survival, whereas multivariate analysis revealed S100A11 to be an independent prognostic factor for disease-free (P=0.019) and overall (P=0.027) survival in patients with HGSC. In conclusion, S100A11 overexpression correlates with an aggressive malignant phenotype and may constitute a novel prognostic factor for HGSC.
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Khorramdelazad H, Bagheri V, Hassanshahi G, Karami H, Moogooei M, Zeinali M, Abedinzadeh M. S100A12 and RAGE expression in human bladder transitional cell carcinoma: a role for the ligand/RAGE axis in tumor progression? Asian Pac J Cancer Prev 2016; 16:2725-9. [PMID: 25854354 DOI: 10.7314/apjcp.2015.16.7.2725] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Transitional cell carcinoma (TCC) and prostate cancer are the most frequent cancers in the male genitourinary tract. Measurement of biological biomarkers may facilitate clinical monitoring and aid early diagnosis of TCC. The aim of the present investigation was to detect the mRNA levels of S100A12 and RAGE (receptor for advanced glycation end products) in patients suffering from bladder TCC. MATERIALS AND METHODS To explore the involvement of S100A12 and RAGE genes, total RNA was harvested from cancer tissues and samples obtained from normal non-tumorized urothelium of the same patients. Quantitative PCR (qPCR) was subsequently employed to determine the mRNA levels of S100A12 and RAGE. RESULTS The results showed that mRNA expression of S100A12 and RAGE was significantly up-regulated in the cancer tissue. CONCLUSIONS According to the results presented in the current study, mRNA expression of S100A12 and RAGE might be as a useful biomarker for TCC. Therefore, this ligand-receptor axis possibly plays important roles in the development of TCC and may serve either as an early diagnostic marker or as a key factor in monitoring of response to treatment. More research is required concerning inhibition of the S100A12-RAGE axis in different cancer models.
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Affiliation(s)
- Hossein Khorramdelazad
- Molecular Medicine Research Center, Rafsanjan University of Medical Sciences, Rafsanjan, Iran E-mail :
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Ramasamy R, Shekhtman A, Schmidt AM. The multiple faces of RAGE--opportunities for therapeutic intervention in aging and chronic disease. Expert Opin Ther Targets 2015; 20:431-46. [PMID: 26558318 DOI: 10.1517/14728222.2016.1111873] [Citation(s) in RCA: 69] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
INTRODUCTION This review focuses on the multi-ligand receptor of the immunoglobulin superfamily--receptor for advanced glycation endproducts (RAGE). The accumulation of the multiple ligands of RAGE in cellular stress milieux links RAGE to the pathobiology of chronic disease and natural aging. AREAS COVERED In this review, we present a discussion on the ligands of RAGE and the implications of these ligand families in disease. We review the recent literature on the role of ligand-RAGE interaction in the consequences of natural aging; the macro- and microvascular complications of diabetes; obesity and insulin resistance; autoimmune disorders and chronic inflammation; and tumors and Alzheimer's disease. We discuss the mechanisms of RAGE signaling through its intracellular binding effector molecule--the formin DIAPH1. Physicochemical evidence of how the RAGE cytoplasmic domain binds to the FH1 (formin homology 1) domain of DIAPH1, and the consequences thereof, are also reviewed. EXPERT OPINION We discuss the modalities of RAGE antagonism currently in preclinical and clinical studies. Finally, we present the rationale behind potentially targeting the RAGE cytoplasmic domain-DIAPH1 interaction as a logical strategy for therapeutic intervention in the pathological settings of chronic diseases and aging wherein RAGE ligands accumulate and signal.
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Affiliation(s)
- Ravichandran Ramasamy
- a Diabetes Research Program, Division of Endocrinology, Department of Medicine , New York University Langone Medical Center , New York , NY 10016 , USA
| | - Alexander Shekhtman
- b Department of Chemistry , University at Albany, State University of New York , Albany , NY 12222 , USA
| | - Ann Marie Schmidt
- a Diabetes Research Program, Division of Endocrinology, Department of Medicine , New York University Langone Medical Center , New York , NY 10016 , USA
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Leśniak W, Graczyk-Jarzynka A. The S100 proteins in epidermis: Topology and function. Biochim Biophys Acta Gen Subj 2015; 1850:2563-72. [PMID: 26409143 DOI: 10.1016/j.bbagen.2015.09.015] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2015] [Accepted: 09/20/2015] [Indexed: 12/21/2022]
Abstract
BACKGROUND S100 proteins are small calcium binding proteins encoded by genes located in the epidermal differentiation complex (EDC). Differently to other proteins encoded by EDC genes, which are indispensable for normal epidermal differentiation, the role of S100 proteins in the epidermis remains largely unknown. SCOPE OF REVIEW Particular S100 proteins differ in their distribution in epidermal layers, skin appendages, melanocytes and Langerhans cells. Taking into account that each epidermal component consists of specialized cells with well-defined functions, such differential distribution may be indicative of the function of a given S100 protein. We used this criterion together with the survey of the current experimental data pertinent to epidermis to provide a fairly comprehensive view on the possible function of individual S100 proteins in this tissue. MAJOR CONCLUSIONS S100 proteins are differently expressed and, despite extensive structural homology, perform diverse functions in the epidermis. Certain S100 proteins probably ensure constant epidermal renewal and support wound healing while others act in epidermal differentiation or have a protective role. As their expression is differently affected in various skin pathologies, particular S100 proteins could be valuable diagnostic markers. GENERAL SIGNIFICANCE S100 proteins seem to be important although not yet fully recognized epidermal constituents. Better understanding of their role in the epidermis might be helpful in designing therapies to various skin diseases.
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Affiliation(s)
- Wiesława Leśniak
- Department of Molecular and Cellular Neurobiology, Nencki Institute of Experimental Biology, 3 Pasteur Street, 02-093 Warsaw, Poland.
| | - Agnieszka Graczyk-Jarzynka
- Department of Molecular and Cellular Neurobiology, Nencki Institute of Experimental Biology, 3 Pasteur Street, 02-093 Warsaw, Poland
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Nanjappa V, Renuse S, Sathe GJ, Raja R, Syed N, Radhakrishnan A, Subbannayya T, Patil A, Marimuthu A, Sahasrabuddhe NA, Guerrero-Preston R, Somani BL, Nair B, Kundu GC, Prasad TK, Califano JA, Gowda H, Sidransky D, Pandey A, Chatterjee A. Chronic exposure to chewing tobacco selects for overexpression of stearoyl-CoA desaturase in normal oral keratinocytes. Cancer Biol Ther 2015; 16:1593-603. [PMID: 26391970 PMCID: PMC4846103 DOI: 10.1080/15384047.2015.1078022] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2015] [Revised: 06/24/2015] [Accepted: 07/26/2015] [Indexed: 01/10/2023] Open
Abstract
Chewing tobacco is a common practice in certain socio-economic sections of southern Asia, particularly in the Indian subcontinent and has been well associated with head and neck squamous cell carcinoma. The molecular mechanisms of chewing tobacco which leads to malignancy remains unclear. In large majority of studies, short-term exposure to tobacco has been evaluated. From a biological perspective, however, long-term (chronic) exposure to tobacco mimics the pathogenesis of oral cancer more closely. We developed a cell line model to investigate the chronic effects of chewing tobacco. Chronic exposure to tobacco resulted in higher cellular proliferation and invasive ability of the normal oral keratinocytes (OKF6/TERT1). We carried out quantitative proteomic analysis of OKF6/TERT1 cells chronically treated with chewing tobacco compared to the untreated cells. We identified a total of 3,636 proteins among which expression of 408 proteins were found to be significantly altered. Among the overexpressed proteins, stearoyl-CoA desaturase (SCD) was found to be 2.6-fold overexpressed in the tobacco treated cells. Silencing/inhibition of SCD using its specific siRNA or inhibitor led to a decrease in cellular proliferation, invasion and colony forming ability of not only the tobacco treated cells but also in a panel of head and neck cancer cell lines. These findings suggest that chronic exposure to chewing tobacco induced carcinogenesis in non-malignant oral epithelial cells and SCD plays an essential role in this process. The current study provides evidence that SCD can act as a potential therapeutic target in head and neck squamous cell carcinoma, especially in patients who are users of tobacco.
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Affiliation(s)
- Vishalakshi Nanjappa
- Institute of Bioinformatics; International Technology Park; Bangalore, India
- Amrita School of Biotechnology; Amrita University; Kollam, India
| | - Santosh Renuse
- Institute of Bioinformatics; International Technology Park; Bangalore, India
- Amrita School of Biotechnology; Amrita University; Kollam, India
| | - Gajanan J Sathe
- Institute of Bioinformatics; International Technology Park; Bangalore, India
- Manipal University; Madhav Nagar; Manipal, India
| | - Remya Raja
- Institute of Bioinformatics; International Technology Park; Bangalore, India
| | - Nazia Syed
- Institute of Bioinformatics; International Technology Park; Bangalore, India
- Department of Biochemistry and Molecular Biology; Pondicherry University; Puducherry, India
| | - Aneesha Radhakrishnan
- Institute of Bioinformatics; International Technology Park; Bangalore, India
- Department of Biochemistry and Molecular Biology; Pondicherry University; Puducherry, India
| | - Tejaswini Subbannayya
- Institute of Bioinformatics; International Technology Park; Bangalore, India
- Amrita School of Biotechnology; Amrita University; Kollam, India
| | - Arun Patil
- Institute of Bioinformatics; International Technology Park; Bangalore, India
- School of Biotechnology; KIIT University; Bhubaneswar, India
| | | | | | - Rafael Guerrero-Preston
- Department of Otolaryngology-Head and Neck Surgery; Johns Hopkins University School of Medicine; Baltimore, MD USA
| | - Babu L Somani
- Institute of Bioinformatics; International Technology Park; Bangalore, India
| | - Bipin Nair
- Amrita School of Biotechnology; Amrita University; Kollam, India
| | - Gopal C Kundu
- National Center for Cell Science (NCCS); NCCS Complex; Pune, India
| | - T Keshava Prasad
- Institute of Bioinformatics; International Technology Park; Bangalore, India
- Amrita School of Biotechnology; Amrita University; Kollam, India
- YU-IOB Center for Systems Biology and Molecular Medicine; Yenepoya University; Mangalore, India
| | - Joseph A Califano
- Department of Otolaryngology-Head and Neck Surgery; Johns Hopkins University School of Medicine; Baltimore, MD USA
- Milton J. Dance Head and Neck Center; Greater Baltimore Medical Center; Baltimore, MD USA
| | - Harsha Gowda
- Institute of Bioinformatics; International Technology Park; Bangalore, India
- YU-IOB Center for Systems Biology and Molecular Medicine; Yenepoya University; Mangalore, India
| | - David Sidransky
- Department of Otolaryngology-Head and Neck Surgery; Johns Hopkins University School of Medicine; Baltimore, MD USA
| | - Akhilesh Pandey
- McKusick-Nathans Institute of Genetic Medicine; Johns Hopkins University School of Medicine; Baltimore, MD USA
- Department of Biological Chemistry; Johns Hopkins University School of Medicine; Baltimore, MD USA
- Department of Pathology; Johns Hopkins University School of Medicine; Baltimore, MD USA
| | - Aditi Chatterjee
- Institute of Bioinformatics; International Technology Park; Bangalore, India
- YU-IOB Center for Systems Biology and Molecular Medicine; Yenepoya University; Mangalore, India
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14
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iTRAQ-based quantitative proteomic analysis on S100 calcium binding protein A2 in metastasis of laryngeal cancer. PLoS One 2015; 10:e0122322. [PMID: 25874882 PMCID: PMC4395276 DOI: 10.1371/journal.pone.0122322] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2014] [Accepted: 02/19/2015] [Indexed: 11/20/2022] Open
Abstract
Laryngeal cancer is the most frequent neoplasm in the head and neck region, with the vast majority of tumors originating from squamous cells. The survival rate of patients with laryngeal cancer has not improved substantially over the past 25 years. To acquire further knowledge regarding the molecules responsible for laryngeal cancer oncogenesis and, in turn, to improve target therapy iTRAQ and mass spectrometry analysis were utilized to detect differences in protein expression from 15 paired laryngeal cancer and adjacent non-cancerous tissue samples. Using mass spectrometry analysis, the expression levels of 100 proteins in laryngeal cancer samples were distinct from the non-tumor, non-cancerous samples. Further validation of the differentially expressed proteins S100A2, KRT16, FGB and HSPB1 were carried out using quantitative real-time RT-PCR, immunoblot and immunohistochemistry. Functional analysis of one of the highly expressed proteins, S100 calcium binding protein A2 (S100A2), was performed using RNA interference. As a consequence, attenuated S100A2 expression enhanced the ability of HEp-2 cell lines to migrate and invade in vitro. Our investigation complements the current understanding of laryngeal cancer progression. Furthermore, this study supports the concept that enhanced expression of S100A2 may be a promising strategy in developing novel cancer therapeutic drugs.
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15
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Yang H, Cao J, Grossniklaus HE. Uveal Melanoma Metastasis Models. Ocul Oncol Pathol 2015; 1:151-60. [PMID: 27171919 DOI: 10.1159/000370153] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2014] [Accepted: 11/26/2014] [Indexed: 01/12/2023] Open
Abstract
Metastatic disease is the leading cause of death among patients with uveal melanoma. Treatment options for patients with clinically disseminated disease are usually unsuccessful. In vitro and in vivo models are important tools to investigate the pathogenesis of metastatic uveal melanomas and develop treatments for the metastases. In vitro experimental approaches focusing on cell invasion/migration which mimic the steps of the complex metastatic process may also be used for the identification of potential anti-invasion/migration drugs that may inhibit the spreading of tumor cells or the development of metastases. The effects of these drugs must subsequently be confirmed in reliable in vivo models before entering the clinical trial phase. Several models of intraocular melanoma with metastases in rodents and rabbits are currently being used. Most experimental models of uveal melanoma metastases require injection or implantation of melanoma cells into orthotopic locations, including into the liver, spleen, tail vein, or the left ventricle of the heart, in order to mimic the metastatic process.
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Affiliation(s)
- Hua Yang
- Department of Ophthalmology, School of Medicine, Emory University, Atlanta, Ga., USA
| | - Jinfeng Cao
- Department of Ophthalmology, LUMC, Leiden, The Netherlands
| | - Hans E Grossniklaus
- Department of Ophthalmology, School of Medicine, Emory University, Atlanta, Ga., USA
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16
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Epigenetic silencing of S100A2 in bladder and head and neck cancers. Oncoscience 2015; 2:410-8. [PMID: 26097874 PMCID: PMC4468326 DOI: 10.18632/oncoscience.140] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2015] [Accepted: 03/04/2015] [Indexed: 12/26/2022] Open
Abstract
S100A2, a member of the S100 protein family, is known to be downregulated in a number of human cancers, leading to its designation as a potential tumor suppressor gene. Here, we investigated the expression and methylation status of S100A2 in head&neck and bladder cancer. Reduced mRNA and protein expression was observed in 8 head&neck and bladder cancer cell lines. To explore the mechanism responsible for the downregulation of S100A2, we treated six cell lines with 5-aza-2'-deoxycytidine. We found S100A2 is silenced in association with aberrant promoter-region methylation and its expression is restored with 5-aza-2'-deoxycytidine treatment. Of 31 primary head&neck cancer cases and 31 bladder cancer cases, promoter methylation was detected in 90% and 80% of cases, respectively. Interestingly, only 1/9 of normal head&neck tissues and 2/6 of normal bladder tissues showed promoter methylation. S100A2 promoter methylation can be detected in urine and is more frequent in bladder cancer patients than in healthy subjects (96% vs 48% respectively). Moreover, increased methylation of S100A2 is linked to the progression of the tumor in bladder cancer (p<0.01). Together, this data shows that methylation-associated inactivation of S100A2 is frequent and may be an important event in the tumorigenesis of head&neck and bladder cancer.
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17
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S100A2 protein and non-small cell lung cancer. The dual role concept. Tumour Biol 2014; 35:7327-33. [PMID: 24863947 DOI: 10.1007/s13277-014-2117-4] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2014] [Accepted: 05/19/2014] [Indexed: 02/03/2023] Open
Abstract
S100A2 is a member of the EF-hand motif family S100. Its role has been recently implicated in carcinogenesis and metastasis. Although its precise role in NSCLC patients is debated and conflicting results have been published, it has been associated with patient survival. S100A2 expression was downregulated in some studies while others disagree that S100A2 is strongly expressed in lung cancer. It has been recently published by Hountis et al. that there is a significant association between nuclear S100A2 positivity and better disease-free interval. Intensity of expression was the highest in the early and advanced stages, and equally distributed in the middle stages. This is indicative for a dual role of this protein in carcinogenesis. The expression of S100A2 in operable NSCLC varies widely, and this differential location and expression pattern (nuclear or cytoplasmic or both) seem to correlate with prognosis. The precise role for the movement of S100A2 protein between cytoplasm and nucleus is still unclear. We present here a literature review, and we propose the dual concept on its substantial role as a prognostic or predictive indicator in this unfavorable group of patients.
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18
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Gross SR, Sin CGT, Barraclough R, Rudland PS. Joining S100 proteins and migration: for better or for worse, in sickness and in health. Cell Mol Life Sci 2014; 71:1551-79. [PMID: 23811936 PMCID: PMC11113901 DOI: 10.1007/s00018-013-1400-7] [Citation(s) in RCA: 118] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2013] [Revised: 06/04/2013] [Accepted: 06/06/2013] [Indexed: 12/12/2022]
Abstract
The vast diversity of S100 proteins has demonstrated a multitude of biological correlations with cell growth, cell differentiation and cell survival in numerous physiological and pathological conditions in all cells of the body. This review summarises some of the reported regulatory functions of S100 proteins (namely S100A1, S100A2, S100A4, S100A6, S100A7, S100A8/S100A9, S100A10, S100A11, S100A12, S100B and S100P) on cellular migration and invasion, established in both culture and animal model systems and the possible mechanisms that have been proposed to be responsible. These mechanisms involve intracellular events and components of the cytoskeletal organisation (actin/myosin filaments, intermediate filaments and microtubules) as well as extracellular signalling at different cell surface receptors (RAGE and integrins). Finally, we shall attempt to demonstrate how aberrant expression of the S100 proteins may lead to pathological events and human disorders and furthermore provide a rationale to possibly explain why the expression of some of the S100 proteins (mainly S100A4 and S100P) has led to conflicting results on motility, depending on the cells used.
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Affiliation(s)
- Stephane R. Gross
- School of Life and Health Sciences, Aston University, Aston Triangle, Birmingham, B4 7ET UK
| | - Connie Goh Then Sin
- School of Life and Health Sciences, Aston University, Aston Triangle, Birmingham, B4 7ET UK
| | - Roger Barraclough
- Institute of Integrative Biology, University of Liverpool, Biosciences Building, Crown Street, Liverpool, L69 7ZB UK
| | - Philip S. Rudland
- Institute of Integrative Biology, University of Liverpool, Biosciences Building, Crown Street, Liverpool, L69 7ZB UK
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19
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Liu YF, Liu QQ, Wang X, Luo CH. Clinical significance of S100A2 expression in gastric cancer. Tumour Biol 2013; 35:3731-41. [PMID: 24318973 DOI: 10.1007/s13277-013-1495-3] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2013] [Accepted: 11/28/2013] [Indexed: 11/26/2022] Open
Abstract
Gastric carcinoma (GC) is one of the most common malignancies worldwide. To identify the candidate carcinoma-related biomarker in GC, comparative proteome technique was performed in resected GC tissues and matched adjacent non-cancerous gastric tissues (ANGT). As a result, S100A2 was successfully identified to be down-regulated significantly in GC compared with ANGT. Western blot analysis validated decreased expression of S100A2, and its expression level was related with the degree of tumor differentiation and status of lymph node metastasis in GC. Furthermore, immunohistochemistry analysis showed S100A2 down-expression was significantly associated with poor differentiation (P < 0.05), advanced depth of invasion (P < 0.05) and lymph node metastasis (P < 0.05) in GC. Kaplan-Meier curves showed that the relapse-free probability and the overall survival rate were significantly decreased with S100A2 expression decreasing (P < 0.05). Cox regression analysis indicated S100A2 down-expression was a negative independent prognostic biomarker for GC. A supplement of S100A2 protein by S100A2 expression vector significantly decreased the number of invaded cancer cells MGC-803. However, knockdown of S100A2 expression by siRNA interference compromised the invasion ability of MGC-803 cells. Moreover, S100A2 negatively regulated MEK/ERK signaling pathway, and activation of this signaling pathway by S100A2 down-regulation increased in vitro invasion of MGC-803 cells. In conclusion, this study demonstrated the clinical significance of S100A2 expression in GC, and loss of S100A2 expression contributes to GC development and progression. Therefore, the determination of S100A2 expression levels contributes to predict the outcome of GC patients.
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Affiliation(s)
- Ying-Fu Liu
- Department of Basic Medical Sciences, Medical College, Xiamen University, Xiangan South Road, Xiangan District, 361102, Xiamen, Fujian, China,
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20
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Wafer LN, Tzul FO, Pandharipande PP, Makhatadze GI. Novel interactions of the TRTK12 peptide with S100 protein family members: specificity and thermodynamic characterization. Biochemistry 2013; 52:5844-56. [PMID: 23899389 DOI: 10.1021/bi400788s] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
The S100 protein family consists of small, dimeric proteins that exert their biological functions in response to changing calcium concentrations. S100B is the best-studied member and has been shown to interact with more than 20 binding partners in a calcium-dependent manner. The TRTK12 peptide, derived from the consensus binding sequence for S100B, has previously been found to interact with S100A1 and has been proposed to be a general binding partner of the S100 family. To test this hypothesis and gain a better understanding of the specificity of binding for the S100 proteins, 16 members of the human S100 family were screened against this peptide and its alanine variants. Novel interactions were found with only two family members, S100P and S100A2, indicating that TRTK12 selectively interacts with a small subset of the S100 proteins. Substantial promiscuity was observed in the binding site of S100B thereby accommodating variations in the peptide sequence, while S100A1, S100A2, and S100P exhibited larger differences in the binding constants for the TRTK12 alanine variants. This suggests that single-point substitutions can be used to selectively modulate the affinity of TRTK12 peptides for individual S100 proteins. This study has important implications for the rational drug design of inhibitors for the S100 proteins, which are involved in a variety of cancers and neurodegenerative diseases.
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Affiliation(s)
- Lucas N Wafer
- Department of Biology, Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, New York 12180, United States
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21
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Zhao Y, Zhang TB, Wang Q. Clinical significance of altered S100A2 expression in gastric cancer. Oncol Rep 2013; 29:1556-62. [PMID: 23337980 DOI: 10.3892/or.2013.2236] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2012] [Accepted: 12/18/2012] [Indexed: 11/06/2022] Open
Abstract
The S100A2 gene has been reported to be a putative tumor‑suppressor gene. Nevertheless, overexpression of S100A2 has been found in certain types of cancer. This study investigated S100A2 expression in tissue specimens of gastritis, intestinal metaplasia, adenomatous dysplasia and gastric cancer to determine its association with clinical features. A serial of tissue samples (gastritis, intestinal metaplasia, adenomatous dysplasia and gastric cancer samples) were used for quantitative real-time reverse transcriptase-polymerase chain reaction (qRT-PCR), western blotting and immunohistochemical analyses of S100A2 expression. The data revealed that there was a gradual loss of S100A2 expression from gastritis, intestinal metaplasia and dysplasia to cancer tissue specimens (p<0.001). In gastric cancer samples, loss of S100A2 expression was associated with increased tumor size, depth of invasion, lymph node metastasis and a poor prognosis (p<0.001). However, the intestinal type of gastric cancer expressed more S100A2 protein than the diffuse type (p<0.001). In conclusion, data from the present study demonstrated that loss of S100A2 expression contributes to gastric cancer development and progression; therefore, the determination of S100A2 expression levels may help to predict the carcinogenesis and aggressiveness of gastric cancer as well as patient survival.
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Affiliation(s)
- Ying Zhao
- Department of General Surgery, Shengjing Hospital of China Medical University, and Department of Biochemistry and Molecular Biology, College of Basic Medicine, China Medical University, Shenyang, Liaoning 110004, PR China
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22
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Heo SH, Choi YJ, Lee JH, Lee JM, Cho JY. S100A2 level changes are related to human periodontitis. Mol Cells 2011; 32:445-50. [PMID: 21922197 PMCID: PMC3887693 DOI: 10.1007/s10059-011-0132-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2011] [Revised: 08/12/2011] [Accepted: 08/25/2011] [Indexed: 11/29/2022] Open
Abstract
Periodontitis is an inflammatory disease, which, when severe, can result in tooth loss, that affects the quality of life. S100A2 was previously identified as a component of gingival crevicular fluid (GCF) via proteome analysis, but it has not been investigated whether S100A2 plays a role in periodontitis. In this study, we analyzed mRNA expression of S100A2 in gingival tissues from normal and classified periodontal disease patients and compared it to that of S100A8 and S100A9. Quantitative real time-PCR revealed that the mRNA expression levels of S100A2, S100A8, and S100A9 were significantly upregulated in gingival tissues with gingivitis, moderate periodontitis, and severe periodontitis compared to normal tissues. In addition, S100A2 proteins in GCF and the conditioned media of lipopolysaccharide (LPS)-treated Jurkat cells were confirmed by ELISA. S100A2 protein levels were significantly higher in GCF in gingivitis and moderate periodontitis groups than in normal groups. S100A2 mRNA expression and protein secretion were also increased by LPS stimulation. Based on the up-regulation of S100A2 in LPS-stimulated immune cells, gingival tissues and GCF from periodontal disease groups, we conclude that S100A2 is a functional component in the immune response during periodontitis and may serve as a potential biomarker for periodontitis.
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Affiliation(s)
- Sun-Hee Heo
- Department of Biochemistry, School of Dentistry, Kyungpook National University, Daegu 700-422, Korea
| | - Young-Jin Choi
- Department of Biochemistry, School of Dentistry, Kyungpook National University, Daegu 700-422, Korea
| | - Ji-Hyun Lee
- Department of Biochemistry, School of Dentistry, Kyungpook National University, Daegu 700-422, Korea
| | - Jae-Mok Lee
- Department of Periodontology, School of Dentistry, Kyungpook National University, Daegu 700-412, Korea
| | - Je-Yoel Cho
- Department of Biochemistry, School of Dentistry, Kyungpook National University, Daegu 700-422, Korea
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Feng X, Zhang J, Chen WN, Ching CB. Proteome profiling of Epstein-Barr virus infected nasopharyngeal carcinoma cell line: identification of potential biomarkers by comparative iTRAQ-coupled 2D LC/MS-MS analysis. J Proteomics 2011; 74:567-76. [PMID: 21296196 DOI: 10.1016/j.jprot.2011.01.017] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2010] [Revised: 01/21/2011] [Accepted: 01/28/2011] [Indexed: 11/25/2022]
Abstract
Epstein-Barr virus (EBV) has been implicated in the development of nasopharyngeal carcinoma (NPC), a squamous cell carcinoma with high-occurrence in Southeast Asia and southern China. However, the underlying relationship of EBV and NPC squamous cell remains obscure. In this study, we employ a comparative iTRAQ-coupled 2D LC-MS/MS system to analyze the protein profile of NPC cell line upon EBV infection. Based on the proteome data and Western blot validation, 12 proteins were found to be significantly up-regulated and associated with signal transduction, cytoskeleton formation, metabolic pathways and DNA bindings. The interactions among NPC and EBV proteins were further analyzed and protein networks were established. Based on the functions of differentially expressed proteins, a metabolic pathway was proposed to elucidate their relationship in cytoskeleton formation, cell proliferation and apoptosis. Our results suggested a new proteome platform to analyze EBV's role in NPC squamous cell line. And these differentially expressed proteins may hold the promise as potential biomarkers for NPC diagnostics and treatment.
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Affiliation(s)
- Xuesong Feng
- School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore
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24
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Tsai WC, Lin YC, Tsai ST, Shen WH, Chao TL, Lee SL, Wu LW. Lack of modulatory function of coding nucleotide polymorphism S100A2_185G>A in oral squamous cell carcinoma. Oral Dis 2010; 17:283-90. [DOI: 10.1111/j.1601-0825.2010.01738.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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25
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Kwon YW, Chang IH, Kim KD, Kim YS, Myung SC, Kim MK, Kim TH. Significance of S100A2 and S100A4 Expression in the Progression of Prostate Adenocarcinoma. Korean J Urol 2010; 51:456-62. [PMID: 20664777 PMCID: PMC2907493 DOI: 10.4111/kju.2010.51.7.456] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2010] [Accepted: 06/23/2010] [Indexed: 12/05/2022] Open
Abstract
Purpose The aim of this study was to investigate the expression pattern of calcium-binding proteins S100A2 and S100A4. We also sought to determine the prognostic value of these markers for patients with prostate adenocarcinoma. Materials and Methods Immunohistochemical staining was performed to detect S100A2 and S100A4 expression in 26 tissue samples obtained during transurethral resection from patients with benign prostatic hyperplasia (BPH) and in 67 tissue samples obtained during prostate biopsy and radical prostatectomy from patients with prostate carcinoma. The immunoreactivity of these proteins was stratified on a scale of 0 to 3 and was correlated with the pathologic features of prostate adenocarcinoma. Results High expression of S100A2 was observed in the tissue of patients with BPH, whereas low or no expression was observed in prostate cancer (CaP) cells. The protein level of S100A4 was significantly higher in CaP than in BPH cells. The higher level of S100A4 observed in CaP tissue correlated with increasing tumor grade. Conclusions Decreased expression of S100A2 and increased expression of S100A4 may be important in the progression of CaP. This finding could aid in identifying aggressive CaP. The simultaneous analysis of S100A2 and S100A4 expression in prostate tissues may be a useful prognostic marker for CaP.
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Affiliation(s)
- Yong-Wook Kwon
- Department of Urology, Chung-Ang University College of Medicine, Seoul, Korea
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26
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Wolf S, Haase-Kohn C, Pietzsch J. S100A2 in cancerogenesis: a friend or a foe? Amino Acids 2010; 41:849-61. [PMID: 20521072 DOI: 10.1007/s00726-010-0623-2] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2010] [Accepted: 05/05/2010] [Indexed: 12/11/2022]
Abstract
Owing to the exceptional intracellular distribution and the heterogeneous expression pattern during transformation and metastasis in various tumors, the EF-hand calcium-binding protein S100A2 attracts increasing attention. Unlike the majority of S100 proteins, S100A2 expression is downregulated in many cancers and the loss in nuclear expression has been associated with poor prognosis. On the other hand, S100A2 is upregulated in some cancers. This mini review highlights the general characteristics of S100A2 and discusses recent findings on its putative functional implication as a suppressor or promoter in cancerogenesis.
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Affiliation(s)
- Susann Wolf
- Department of Radiopharmaceutical Biology, Institute of Radiopharmacy, Research Center Dresden-Rossendorf, POB 51 01 19, 01314, Dresden, Germany
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27
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Stich S, Haag M, Häupl T, Sezer O, Notter M, Kaps C, Sittinger M, Ringe J. Gene expression profiling of human mesenchymal stem cells chemotactically induced with CXCL12. Cell Tissue Res 2009; 336:225-36. [PMID: 19296133 DOI: 10.1007/s00441-009-0768-z] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2008] [Accepted: 01/21/2009] [Indexed: 12/22/2022]
Abstract
In situ tissue engineering is a promising approach in regenerative medicine, with the possibility that adult stem or progenitor cells will be guided chemotactically to a tissue defect and subsequently differentiate into the surrounding tissue type. Mesenchymal stem cells (MSC) represent attractive candidate cells. Chemokines such as CXCL12 (SDF-1alpha) chemoattract MSC, but little is known about the molecular processes involved in the chemotaxis and migration of MSC. In this study, MSC recruitment by CXCL12 was investigated by genome-wide microarray analysis. The dose-dependent migration potential of bone-marrow-derived MSC toward CXCL12 was measured in an in vitro assay, with a maximum being recorded at a concentration of 1,000 nM CXCL12. Microarray analysis of MSC stimulated with CXCL12 and non-stimulated controls showed 30 differentially expressed genes (24 induced and six repressed). Pathway analysis revealed 11 differentially expressed genes involved in cellular movement and cytokine-cytokine receptor interaction, including those for migratory inducers such as the chemokines CXCL8 and CCL26, the leukocyte inhibitory factor, secretogranin II, and prostaglandin endoperoxide synthase 2. These results were confirmed by real-time polymerase chain reaction for selected genes. The obtained data provide further insights into the molecular mechanisms involved in chemotactic processes in cell migration and designate CXCL12 as a promising candidate for in situ recruitment in regenerative therapies.
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Affiliation(s)
- Stefan Stich
- Tissue Engineering Laboratory and Berlin-Brandenburg Center for Regenerative Therapies, Department of Rheumatology and Clinical Immunology, Charité-University Medicine Berlin, Berlin, Germany
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Dumont P, Berton A, Nagy N, Sandras F, Tinton S, Demetter P, Mascart F, Allaoui A, Decaestecker C, Salmon I. Expression of galectin-3 in the tumor immune response in colon cancer. J Transl Med 2008; 88:896-906. [PMID: 18542048 DOI: 10.1038/labinvest.2008.54] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
The role of tumor-associated macrophages (TAMs) is controversial. Although most studies on different cancer types associate them with a poorer prognosis, interestingly in colon cancer, most articles indicate that TAMs prevent tumor development; patients with high TAMs have better prognosis and survival rate. M1-polarized macrophages produce high level of tumor necrosis factor-alpha, interleukin-1 beta or reactive oxygen species, which can effectively kill susceptible tumor cells. In contrast, M2-polarized macrophages can secrete different factors that promote tumor cell growth and survival or favor angiogenesis and tissue invasion. Considering the beneficial role of TAMs in colon cancer, we speculated that they may not display the M2 polarization commonly observed in tumor microenvironment, but rather develop M1 properties. Therefore, we used an in vitro model to analyze the effects of supernatants from M1-polarized macrophages on DLD-1 colon cancer cells. Our data indicate that the conditioned medium from LPS-activated macrophages (CM-LAM) contains a high level of granulocyte-macrophage colony-stimulating factor, interleukins-1 beta, -6, -8 and tumor necrosis factor-alpha, and that it exerts a marked growth inhibitory activity on DLD-1 cells. Prolonged exposure to CM-LAM results in cell death by apoptosis. Such exposure to CM-LAM leads to the modulation of gal-3 expression: we observed a marked downregulation of gal-3 mRNA and protein expression following CM-LAM treatment. We also describe that the knockdown of gal-3 sensitizes DLD-1 cells to CM-LAM. These data suggest an involvement of gal-3 in the response of colon cancer cells to proinflammatory stimuli, such as the conditioned medium from activated macrophages.
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Affiliation(s)
- Patrick Dumont
- Laboratory of Pathology, Erasme Hospital, Université Libre de Bruxelles, Brussels, Belgium
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Roderick HL, Cook SJ. Ca2+ signalling checkpoints in cancer: remodelling Ca2+ for cancer cell proliferation and survival. Nat Rev Cancer 2008; 8:361-75. [PMID: 18432251 DOI: 10.1038/nrc2374] [Citation(s) in RCA: 538] [Impact Index Per Article: 33.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Increases in cytosolic free Ca2+ ([Ca2+]i) represent a ubiquitous signalling mechanism that controls a variety of cellular processes, including proliferation, metabolism and gene transcription, yet under certain conditions increases in intracellular Ca2+ are cytotoxic. Thus, in using Ca2+ as a messenger, cells walk a tightrope in which [Ca2+]i is strictly maintained within defined boundaries. To adhere to these boundaries and to sustain their modified phenotype, many cancer cells remodel the expression or activity of their Ca2+ signalling apparatus. Here, we review the role of Ca2+ in promoting cell proliferation and cell death, how these processes are remodelled in cancer and the opportunities this might provide for therapeutic intervention.
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Affiliation(s)
- H Llewelyn Roderick
- Department of Pharmacology, University of Cambridge, Tennis Court Road, Cambridge CB2 1PD, UK.
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Kirschner RD, Sänger K, Müller GA, Engeland K. Transcriptional activation of the tumor suppressor and differentiation gene S100A2 by a novel p63-binding site. Nucleic Acids Res 2008; 36:2969-80. [PMID: 18388131 PMCID: PMC2396407 DOI: 10.1093/nar/gkn132] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
S100A2 is generally found expressed in the epidermis and was recently shown to play a crucial role in the differentiation of keratinocytes. Also known as CaN19, S100A2 was identified as a potential tumor suppressor. Expression of S100A2 is upregulated by p53. The proteins p63 and p73 are related to p53 and are expressed as several splice variants with partially overlapping tasks but also functions different from p53. It had been shown that p63 proteins with mutations in their DNA-binding domain cause severe phenotypes in man as autosomal dominantly inherited disease including EEC, AEC, SHFM, LMS and ADULT syndromes. Here we show that S100A2 is a transcriptional target of p63/p73 family members, particularly the p63 splice variant TAp63γ. The regulation is mediated by a novel transcriptional element in the S100A2 promoter which is bound by TAp63γ but not by p53. Mutant p63 proteins derived from EEC and ADULT syndrome patients cannot activate S100A2 transcription whereas SHFM-related mutants still can stimulate the S100A2 promoter. Consistent with a function in tumor suppression S100A2 expression is stimulated upon DNA damage. After doxorubicin treatment p63γ proteins are recruited to the S100A2 promoter in vivo. This may indicate a function of the p63-dependent S100A2 regulation in tumor suppression.
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Affiliation(s)
- Ralf D Kirschner
- Interdisziplinäres Zentrum für Klinische Forschung IZKF, Frauenklinik, Medizinische Fakultät, Universität Leipzig, Semmelweisstrasse, 14, D-04103 Leipzig, Germany
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31
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Ohuchida K, Mizumoto K, Miyasaka Y, Yu J, Cui L, Yamaguchi H, Toma H, Takahata S, Sato N, Nagai E, Yamaguchi K, Tsuneyoshi M, Tanaka M. Over-expression of S100A2 in pancreatic cancer correlates with progression and poor prognosis. J Pathol 2007; 213:275-82. [PMID: 17940995 DOI: 10.1002/path.2250] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Controversy exists regarding the clinical significance of S100A2 in the progression of tumours. In pancreatic cancer, little is known about the role of S100A2. The aim of this study was to clarify the clinical significance of S100A2 expression in pancreatic carcinogenesis. We microdissected invasive ductal carcinoma (IDC) cells from 22 lesions, pancreatic intraepithelial neoplasia (PanIN) cells from five lesions, intraductal papillary mucinous neoplasm (IPMN) cells from 38 lesions, pancreatitis-affected epithelial (PAE) cells from 16 lesions, and normal ductal cells from 18 normal pancreatic tissues. S100A2 expression in 14 pancreatic cancer cell lines, microdissected cells and formalin-fixed paraffin-embedded (FFPE) samples was examined by quantitative reverse transcription-polymerase chain reaction (qRT-PCR). Microdissection analyses revealed that IDC cells expressed higher levels of S100A2 than did IPMN, PAE or normal cells (all comparisons, p < 0.007). Cell lines from metastatic sites expressed higher levels of S100A2 than those from primary sites. PanIN cells expressed higher levels of S100A2 than normal cells (p = 0.018). IDC cells associated with poorly differentiated adenocarcinoma expressed higher levels of S100A2 than did IDC cells without poorly differentiated adenocarcinoma (p = 0.006). Analyses of FFPE samples revealed that levels of S100A2 were higher in samples from patients who survived < 1000 days after surgery than in those from patients who survived > 1000 days (p = 0.043). Immunohistochemical analysis was consistent with qRT-PCR. S100A2 may be a marker of tumour progression or prognosis in pancreatic carcinogenesis and pancreatic cancer.
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Affiliation(s)
- K Ohuchida
- Department of Surgery and Oncology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.
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Luthra MG, Ajani JA, Izzo J, Ensor J, Wu TT, Rashid A, Zhang L, Phan A, Fukami N, Luthra R. Decreased expression of gene cluster at chromosome 1q21 defines molecular subgroups of chemoradiotherapy response in esophageal cancers. Clin Cancer Res 2007; 13:912-9. [PMID: 17289885 DOI: 10.1158/1078-0432.ccr-06-1577] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
PURPOSE Resistance to preoperative chemoradiotherapy (CTXRT) in 75% of patients with esophageal adenocarcinoma (EAC) underscores the need for identification of biomarkers of CTXRT response. We previously noted an association between decreased expression of epidermal differentiation complex (EDC) genes S100A2 and SPRR3 at chromosome 1q21 and CTXRT resistance. In the current study, we did an in-depth investigation of the expression of 1q21-1q25 region genes to uncover the role of the EDC and its flanking genes in CTXRT response. EXPERIMENTAL DESIGN We compared 19 pretreatment EAC specimens with normal squamous mucosa for the expression of 517 genes at chromosome 1q21-1q25 and selected target genes based on their differential expression. Using the pathologic complete-response (pathCR) status of the resected specimens as a representation of CTXRT sensitivity, we assessed the association between the expression of target genes and CTXRT response and clinical outcomes. RESULTS On the basis of the expression levels of IVL, CRNN, NICE-1, S100A2, and SPPR3, genes within and in close proximity to the EDC, cancers were segregated into high (subgroup I) or low (subgroup II) expressers. Four of the five pathCRs were high expressers. Thus, low expressers, with one exception, were all nonresponders. Patients in subgroup I also had longer survival than those in subgroup II, although this result was not statistically significant owing to the small study number. CONCLUSIONS The expression levels of genes mapping within and close to the EDC define CTXRT response subgroups in EACs.
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Affiliation(s)
- Madan G Luthra
- Department of Pathology, The University of Texas M. D. Anderson Cancer Center, Houston, Texas 77054, USA
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Zhang X, Hunt JL, Shin DM, Chen ZG. Down-regulation of S100A2 in lymph node metastases of head and neck cancer. Head Neck 2007; 29:236-43. [PMID: 17123307 DOI: 10.1002/hed.20511] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
BACKGROUND Our cDNA microarray analysis of squamous cell carcinoma of the head and neck (SCCHN) previously identified that S100A2 was down-regulated in highly metastatic 686LN-M3s cell lines established through in vivo selection using a metastatic xenograft mouse model. S100A2, a putative tumor suppressor, has been found to be down-regulated in several types of primary tumor as compared with the normal tissue. Only a few reports have explored its expression status and function in metastasis. METHODS To further confirm down-regulation of S100A2 in human metastasis, we examined S100A2 expression using immunohistochemical analysis of paraffin-embedded SCCHN tissues. The samples included primary SCCHN tumors (Tu-1) and involved lymph nodes (Met-1) from the same patients, and primary tumors in node-negative patients (Tu-2). RESULTS Most of these tumors expressed S100A2 but lymph node metastases showed a pattern of reduced staining for S100A2 compared with primary tumors. A similar expression pattern of S100A2 was also observed in several SCCHN cell lines by reverse transcription-polymerase chain reaction (RT-PCR) and immunoblotting. Particularly, S100A2 expression was lower in 686LN than Tu686 and hardly detectable in the metastatic derivatives 686LN-M3s. Further study of S100A2 promoter showed higher methylation intensity in these metastatic derivatives than in Tu686 and 686LN. CONCLUSIONS S100A2 was down-regulated in lymph node metastasis of SCCHN, suggesting that instead of being a putative tumor suppressor, S100A2 may play a role in the metastasis of SCCHN.
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Affiliation(s)
- Xin Zhang
- Department of Hematology and Oncology, Winship Cancer Institute, Emory University, Atlanta, Georgia, USA
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Decaestecker C, Debeir O, Van Ham P, Kiss R. Can anti-migratory drugs be screened in vitro? A review of 2D and 3D assays for the quantitative analysis of cell migration. Med Res Rev 2007; 27:149-76. [PMID: 16888756 DOI: 10.1002/med.20078] [Citation(s) in RCA: 114] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
The aim of the present review is to detail and analyze the pros and cons of in vitro tests available to quantify the anti-migratory effects of anti-cancer drugs for their eventual use in combating the dispersal of tumor cells, a clinical need which currently remains unsatisfied. We therefore briefly sum up why anti-migratory drugs constitute a promising approach in oncology while at the same time emphasizing that migrating cancer cells are resistant to apoptosis. To analyze the pros and cons of the various in vitro tests under review we also briefly sum up the molecular and cellular stages of cancer cell migration, an approach that enables us to argue both that no single in vitro test is sufficient to characterize the anti-migratory potential of a drug and that standardization is needed for the efficient quantitative analysis of cell locomotion in a 3D environment. Before concluding our review we devote the final two parts (i) to the description of new prototypes which, in the near future, could enter the screening process with a view to identifying novel anti-migratory compounds, and (ii) to the anti-migratory compounds currently developed against cancer, with particular emphasis on how these compounds were selected before entering the clinical trial phase.
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Affiliation(s)
- Christine Decaestecker
- Laboratory of Toxicology, Institute of Pharmacy, Université Libre de Bruxelles, Brussels, Belgium.
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35
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Lee OJ, Hong SM, Razvi MH, Peng D, Powell SM, Smoklin M, Moskaluk CA, El-Rifai W. Expression of calcium-binding proteins S100A2 and S100A4 in Barrett's adenocarcinomas. Neoplasia 2006; 8:843-50. [PMID: 17032501 PMCID: PMC1715926 DOI: 10.1593/neo.06481] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
In this study, we investigated the mRNA and protein expression of S100A2 and S100A4 in adenocarcinomas of the stomach and esophagus. Real-time reverse transcription-polymerase reaction analysis on 72 tumors revealed frequent overexpression of S100A2 and S100A4 in Barrett's adenocarcinomas (BAs) (P < .01). Immunohistochemical analysis on tumor tissue microarrays that contained 187 tumors showed absent to weak staining for S100A2 in all normal gastric mucosa samples, whereas normal esophageal mucosa samples demonstrated moderate to strong nuclear staining. Contrary to the nuclear expression of S100A2 in normal esophageal mucosa, two thirds of Barrett's dysplasia and BAs that overexpressed S100A2 demonstrated stronger cytosolic staining than nuclear staining (P < .001). Overexpression of S100A2 protein was more frequently seen in well-differentiated tumors than in others (P = .02). Moderate to strong staining of S100A4 was detected in two thirds of tumors and was frequently observed in the presence of Barrett's esophagus (P = .02). Similar to S100A2, the expression of S100A4 was predominantly cytosolic in two thirds of the tumors (P = .001). There was a significant correlation between S100A4 overexpression and lymph node metastasis (N(2)-N(4)) (P = .027). These results demonstrate frequent cytosolic overexpression of S100A2 and S100A4 in BAs. Further studies are ongoing to understand the biological significance of these S100A proteins in Barrett's tumorigenesis.
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Affiliation(s)
- Ok-Jae Lee
- Department of Surgery and Vanderbilt-Ingram Cancer Center, Vanderbilt University Medical Center, Nashville, TN, USA
- Department of Internal Medicine and Institute of Health Science, College of Medicine, Gyeongsang National University, Jinju, Republic of Korea
| | - Seung-Mo Hong
- Department of Pathology, University of Virginia Health System, Charlottesville, VA, USA
| | - Mohammad H Razvi
- Department of Surgery and Vanderbilt-Ingram Cancer Center, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Dunfa Peng
- Department of Surgery and Vanderbilt-Ingram Cancer Center, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Steven M Powell
- Division of Gastroenterology, University of Virginia Health System, Charlottesville, VA, USA
| | - Mark Smoklin
- Department of Biostatistics, University of Virginia Health System, Charlottesville, VA, USA
| | | | - Wael El-Rifai
- Department of Surgery and Vanderbilt-Ingram Cancer Center, Vanderbilt University Medical Center, Nashville, TN, USA
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Yang Z, Yan WX, Cai H, Tedla N, Armishaw C, Di Girolamo N, Wang HW, Hampartzoumian T, Simpson JL, Gibson PG, Hunt J, Hart P, Hughes JM, Perry MA, Alewood PF, Geczy CL. S100A12 provokes mast cell activation: a potential amplification pathway in asthma and innate immunity. J Allergy Clin Immunol 2006; 119:106-14. [PMID: 17208591 DOI: 10.1016/j.jaci.2006.08.021] [Citation(s) in RCA: 121] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2006] [Revised: 07/12/2006] [Accepted: 08/17/2006] [Indexed: 01/17/2023]
Abstract
BACKGROUND The calcium-binding protein S100A12 might provoke inflammation and monocyte recruitment through the receptor for advanced glycation end products. OBJECTIVE Because inflammation elicited by S100A12 in vivo had characteristics of mast cell (MC) activation, we aimed to define the mechanism. METHODS Various MC populations were used to test S100A12 activation assessed on the basis of morphology, histamine release, leukotriene production, and cytokine induction. MC dependence of S100A12-provoked inflammation was tested in mice and on the rat microcirculation by means of intravital microscopy. Immunohistochemistry localized S100A12 in the asthmatic lung, and levels in sputum from asthmatic patients were quantitated by means of ELISA. Expression of the receptor for advanced glycation end products was evaluated by means of RT-PCR and Western blotting. RESULTS S100A12 provoked degranulation of mucosal and tissue MCs in vitro and in vivo and amplified IgE-mediated responses. It induced a cytokine profile indicating a role in innate/T(H)1-mediated responses. S100A12-induced edema and leukocyte rolling, adhesion, and transmigration in the microcirculation were MC dependent. Eosinophils in airway tissue from asthmatic patients were S100A12 positive, and levels were increased in sputum. S100A12 responses were partially blocked by an antagonist to the receptor for advanced glycation end products, but MCs did not express mRNA or protein, suggesting an alternate receptor. CONCLUSION This novel pathway highlights the potential importance of S100A12 in allergic responses and in infectious and chronic inflammatory diseases. CLINICAL IMPLICATIONS MC activation by S100A12 might exacerbate allergic inflammation and asthma. S100A12 might provide a novel marker for eosinophilic asthma.
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Affiliation(s)
- Zheng Yang
- School of Medical Sciences, The University of New South Wales, Sydney, Australia
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Tong YG, Zhang XW, Geng MY, Yue JM, Xin XL, Tian F, Shen X, Tong LJ, Li MH, Zhang C, Li WH, Lin LP, Ding J. Pseudolarix Acid B, a New Tubulin-Binding Agent, Inhibits Angiogenesis by Interacting with a Novel Binding Site on Tubulin. Mol Pharmacol 2006; 69:1226-33. [PMID: 16424078 DOI: 10.1124/mol.105.020537] [Citation(s) in RCA: 75] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Tubulin-binding agents have received considerable interest as potential tumor-selective angiogenesis-targeting drugs. Herein, we report that pseudolarix acid B (PAB), isolated from the traditional Chinese medicinal plant Pseudolarix kaempferi Gordon, is a tubulin-binding agent. We further demonstrate that PAB significantly and dose-dependently inhibits proliferation, migration, and tube formation by human microvessel enthothelial cells. It is noteworthy that PAB eliminated newly formed endothelial tubes and microvessels both in vitro and in vivo. In addition, PAB dramatically arrested the cell cycle at G2/M phase. PAB also induced endothelial cell retraction, intercellular gap formation, and promoted actin stress fiber formation in conjunction with disruption of the tubulin and actin cytoskeletons. All of these effects occurred at noncytotoxic concentrations of PAB. We found that these effects of PAB are attributable to depolymerization of tubulin by direct interaction with a distinct binding site on tubulin compared with those of colchicine and vinblastine. Taken together, these findings show that PAB is a candidate antiangiogenic agent for use in cancer therapy, and they provide proof of principle for targeting this novel binding site on tubulin as a new strategy for treating cancer.
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Affiliation(s)
- Yun-Guang Tong
- Division of Anti-tumor Pharmacology, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 201203, People's Republic of China
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Luthra R, Wu TT, Luthra MG, Izzo J, Lopez-Alvarez E, Zhang L, Bailey J, Lee JH, Bresalier R, Rashid A, Swisher SG, Ajani JA. Gene expression profiling of localized esophageal carcinomas: association with pathologic response to preoperative chemoradiation. J Clin Oncol 2005; 24:259-67. [PMID: 16344314 DOI: 10.1200/jco.2005.03.3688] [Citation(s) in RCA: 133] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
PURPOSE Patients with localized esophageal carcinoma have a 5-year survival rate of less than 20%. Patients are often treated similarly (ie, with preoperative chemoradiotherapy) but the outcomes vary greatly. Chemoradiotherapy and surgery can result in significant undesirable consequences. Currently, however, there are no tools to help select optimum therapy. We hypothesized that gene expression profiling could provide clues and biomarkers for selection of therapy. METHODS Pretreatment endoscopic cancer biopsies from 19 patients (16 with adenocarcinoma, two with squamous cell carcinoma, and one with adenosquamous carcinoma) enrolled onto a preoperative chemoradiotherapy protocol were profiled using oligonucleotide microarrays. Surgical specimens following therapy were assessed for the degree of pathologic response. On the basis of array data, selected genes were analyzed by polymerase chain reaction. RESULTS Unsupervised hierarchical cluster analysis segregated the cancers into two molecular subtypes, each consisting 10 and nine specimens, respectively. Most cancers (five of six) that had pathologic complete response (pathCR) clustered in molecular subtype I. Subtype II, with one exception, consisted cancers that had less than pathCR (< pathCR). Using a combination marker approach, levels of PERP, S100A2, and SPRR3 allowed discrimination of pathCR from < pathCR with high sensitivity and specificity (85%). Pathway analysis identified apoptotic pathway as one of the key functions downregulated in molecular type II in comparison with type I. CONCLUSION These encouraging, albeit preliminary, data suggest that expression profiling may distinguish cancers with different pathologic outcome. This is the first report to show subtypes of esophageal cancers with distinct molecular signatures. The potential of PERP, S100A2, and SPRR3 as biomarkers of pathCR warrants further validation.
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Affiliation(s)
- Rajyalakshmi Luthra
- Department of Hematopathology, The University of Texas M.D. Anderson Cancer Center, Houston, TX 77054, USA.
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Matsubara D, Niki T, Ishikawa S, Goto A, Ohara E, Yokomizo T, Heizmann CW, Aburatani H, Moriyama S, Moriyama H, Nishimura Y, Funata N, Fukayama M. Differential expression of S100A2 and S100A4 in lung adenocarcinomas: clinicopathological significance, relationship to p53 and identification of their target genes. Cancer Sci 2005; 96:844-57. [PMID: 16367903 PMCID: PMC11159992 DOI: 10.1111/j.1349-7006.2005.00121.x] [Citation(s) in RCA: 63] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Previous studies suggest that some S100 proteins are involved in the progression of certain types of cancer. However, no comprehensive data is currently available on the expression of S100 family genes in lung adenocarcinomas. Oligonucleotide array, quantitative reverse transcription-polymerase chain reaction and western blot analyses of lung adenocarcinoma cell lines and bronchiolar epithelial cells (SAEC and NHBE) revealed that S100A2 and S100A4 were the most strikingly downregulated and upregulated members of the S100 family, respectively. Immunohistochemical analyses of 94 primary lung adenocarcinomas showed that positive S100A2 expression (33/94, 35.1%) was significantly associated with lymphatic invasion (P=0.0233) and positive S100A4 expression (19/94, 20.2%) with vascular invasion (P=0.0454). Interestingly, a strong inverse relationship was found between S100A4 and p53 expression (P=0.0008). Survival analyses showed that S100A4 positivity was associated with poor patient prognosis (P=0.042). S100A2 positivity was not associated with patient survival when the whole patient group was analyzed; however, S100A2 positivity was a favorable prognostic indicator in patients with p53-negative tumors (P=0.0448). Finally, we used oligonucleotide array analyses and identified potential S100A2 and S100A4 target genes involved in cancer progression: S100A2 induced RUNX3 and REPRIMO; S100A4 induced EZRIN, RUNX1 and WISP1; S100A2 repressed EGFR, NFKB2 and RELA2; and S100A4 repressed ANXA10 and IL1RN. Thus, the present study demonstrates involvement of S100A2 and S100A4 in the progression of lung adenocarcinomas and an inverse association between S100A4 and p53 expression, and provides a list of targets regulated by S100A2 and S100A4.
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Affiliation(s)
- Daisuke Matsubara
- Department of Human Pathology, School of Medicine, The University of Tokyo, Tokyo, Japan
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Mueller A, Schäfer BW, Ferrari S, Weibel M, Makek M, Höchli M, Heizmann CW. The Calcium-binding Protein S100A2 Interacts with p53 and Modulates Its Transcriptional Activity. J Biol Chem 2005; 280:29186-93. [PMID: 15941720 DOI: 10.1074/jbc.m505000200] [Citation(s) in RCA: 108] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Head and neck squamous cell carcinoma express high levels of the EF-hand calcium-binding protein S100A2 in contrast to other tumorigenic tissues and cell lines where the expression of this protein is reduced. Subtractive hybridization of tumorigenic versus normal tumor-derived mammary epithelial cells has previously identified the S100A2 protein as potential tumor suppressor. The biological function of S100A2 in carcinogenesis, however, has not been elucidated to date. Here, we report for the first time that during recovery from hydroxyurea treatment, the S100A2 protein translocated from the cytoplasm to the nucleus and co-localized with the tumor suppressor p53 in two different oral carcinoma cells (FADU and SCC-25). Co-immunoprecipitation experiments and electrophoretic mobility shift assay showed that the interaction between S100A2 and p53 is Ca(2+)-dependent. Preliminary characterization of this interaction indicated that the region in p53 involved with binding to S100A2 is located at the C terminus of p53. Finally, luciferase-coupled transactivation assays, where a p53-reporter construct was used, indicated that interaction with S100A2 increased p53 transcriptional activity. Our data suggest that in oral cancer cells the Ca(2+)- and cell cycle-dependent p53-S100A2 interaction might modulate proliferation.
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Affiliation(s)
- Andrea Mueller
- Division of Clinical Chemistry and Biochemistry, Department of Pediatrics, Steinwiesstrasse 75, 8032 Zurich
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Hayot C, Debeir O, Van Ham P, Van Damme M, Kiss R, Decaestecker C. Characterization of the activities of actin-affecting drugs on tumor cell migration. Toxicol Appl Pharmacol 2005; 211:30-40. [PMID: 16005926 DOI: 10.1016/j.taap.2005.06.006] [Citation(s) in RCA: 96] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2005] [Revised: 05/30/2005] [Accepted: 06/01/2005] [Indexed: 11/28/2022]
Abstract
Metastases kill 90% of cancer patients. It is thus a major challenge in cancer therapy to inhibit the spreading of tumor cells from primary tumor sites to those particular organs where metastases are likely to occur. Whereas the actin cytoskeleton is a key component involved in cell migration, agents targeting actin dynamics have been relatively poorly investigated. Consequently, valuable in vitro pharmacological tools are needed to selectively identify this type of agent. In response to the absence of any standardized process, the present work aims to develop a multi-assay strategy for screening actin-affecting drugs with anti-migratory potentials. To validate our approach, we used two cancer cell lines (MCF7 and A549) and three actin-affecting drugs (cytochalasin D, latrunculin A, and jasplakinolide). We quantified the effects of these drugs on the kinetics of actin polymerization in tubes (by means of spectrofluorimetry) and on the dynamics of actin cytoskeletons within whole cells (by means of fluorescence microscopy). Using quantitative videomicroscopy, we investigated the actual effects of the drugs on cell motility. Finally, the combined drug effects on cell motility and cell growth were evaluated by means of a scratch-wound assay. While our results showed concordant drug-induced effects on actin polymerization occurring in vitro in test tubes and within whole cells, the whole cell assay appeared more sensitive than the tube assay. The inhibition of actin polymerization induced by cytochalasin D was paralleled by a decrease in cell motility for both cell types. In the case of jasplakinolide, which induces actin polymerization, while it significantly enhanced the locomotion of the A549 cells, it significantly inhibited that of the MCF-7 ones. All these effects were confirmed by means of the scratch-wound assay except of the jasplakinolide-induced effects on MCF-7 cell motility. These later seemed compensated by an additional effect occurring during wound recolonization (possibly acting on the cell growth features). In conclusion, the use of multi-assays with different levels of sophistication and biological relevance is recommended in the screening of new actin-affecting drugs with potentially anti-migratory effects.
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Affiliation(s)
- Caroline Hayot
- Laboratory of Toxicology, Institute of Pharmacy, Free University of Brussels (ULB), Boulevard du Triomphe, 1050 Brussels, Belgium
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Tsai ST, Jin YT, Tsai WC, Wang ST, Lin YC, Chang MT, Wu LW. S100A2, a potential marker for early recurrence in early-stage oral cancer. Oral Oncol 2005; 41:349-57. [PMID: 15792606 DOI: 10.1016/j.oraloncology.2004.09.006] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2004] [Accepted: 09/21/2004] [Indexed: 11/29/2022]
Abstract
Early-stage oral cancer patients may have distinct clinical outcomes and respond differently to the same treatment. Up to now, there is still no individual marker to identify such patients with poor outcome. Down-regulation of a tumor suppressor gene, S100A2, in oral cancer cells was identified by mRNA profiling analysis then confirmed by RT-PCR and Southern blotting. The expression of nuclear S100A2 protein examined by immunohistochemistry was not significantly associated with any patient characteristic among the 70 early-stage oral squamous cell carcinoma (SCC) patients. Intriguingly, the loss of nuclear S100A2 positivity was significantly associated with shorter disease-free survival (p=0.019) while having no effect on the overall survival of these patients. Cox regression analysis with backward elimination identified S100A2 (p=0.006), tobacco smoking (p=0.013), and betel quid chewing (p=0.019) as independent predictors of disease-free survival. This is a first study to demonstrate that loss of nuclear S100A2 may serve as an independent prognostic marker for early-stage oral cancer patients at high risk of recurrence. A more aggressive treatment modality and intensive follow-up may be recommended for the patients with reduced expression of S100A2 in tumor cell nuclei.
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Affiliation(s)
- Sen-Tien Tsai
- Department of Otolaryngology, National Cheng Kung University Hospital, 138 Sheng Li Road, Tainan 70428, Taiwan, ROC
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DeMarco RA, Fink MP, Lotze MT. Monocytes promote natural killer cell interferon gamma production in response to the endogenous danger signal HMGB1. Mol Immunol 2005; 42:433-44. [PMID: 15607795 DOI: 10.1016/j.molimm.2004.07.023] [Citation(s) in RCA: 69] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Substantial attention has been paid to the role of the toll-like receptor (TLR) ligands of late and their role in regulating the innate immune response. They serve as exogenous danger signals important in informing and driving the distal adaptive immune response to pathogens. Less clear has been the role of the nominal endogenous danger signals released and recognized in stressed cells following genotoxic or metabolic stress as occurs in progressively growing tumors. HMGB1 (high-mobility group B1) is a nuclear protein well characterized for its ability to modify DNA access to transcriptional proteins that is released from necrotic cells as well as secreted through the endosomal route from hematopoietic cells, serving as a late mediator of sepsis. It interacts with high-affinity RAGE (receptor for advanced glycation end products) and TLR2 receptors. Here we show that HMGB1 enhances interferon gamma release from macrophage (but not dendritic cell)-stimulated NK cells. This is effective only when coupled with other pro-inflammatory cytokines particularly with IL-2 in combination with IL-1 or IL-12. We have used this information to suggest that HMGB1, which also promotes epithelial migration and proliferation, drives repair in the absence or inhibition of other factors but enhances inflammation in their presence. The implications for tumorigenesis and tumor progression are quite important as they may be for other states of chronic inflammation.
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Affiliation(s)
- Richard A DeMarco
- Department of Surgery, Molecular Medicine Institute, University of Pittsburgh School of Medicine, Pittsburgh, PA 15219, USA
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Emberley ED, Murphy LC, Watson PH. S100 proteins and their influence on pro-survival pathways in cancer. Biochem Cell Biol 2005; 82:508-15. [PMID: 15284904 DOI: 10.1139/o04-052] [Citation(s) in RCA: 106] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
The S100 gene family is composed of at least 20 members that share a common structure defined in part by the Ca2+ binding EF-hand motif. These genes which are expressed in a discriminate fashion in specific cells and tissues, have been described to have either an intracellular or extracellular function, or both. S100 proteins are implicated in the immune response, differentiation, cytoskeleton dynamics, enzyme activity, Ca2+ homeostasis and growth. A potential role for S100 proteins in neoplasia stems from these activities and from the observation that several S100 proteins have altered levels of expression in different stages and types of cancer. While the precise role and importance of S100 proteins in the development and promotion of cancer is poorly understood, it appears that the binding of Ca2+ is essential for exposing amino acid residues that are important in forming protein-protein interactions with effector molecules. The identity of some of these effector molecules has also now begun to emerge, and with this the elucidation of the signaling pathways that are modulated by these proteins. Some of these interactions are consistent with the diverse functions noted above. Others suggest that, many S100s may also promote cancer progression through specific roles in cell survival and apoptosis pathways. This review summarizes these findings and their implications.
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Vos JB, van Sterkenburg MA, Rabe KF, Schalkwijk J, Hiemstra PS, Datson NA. Transcriptional response of bronchial epithelial cells to Pseudomonas aeruginosa: identification of early mediators of host defense. Physiol Genomics 2005; 21:324-36. [PMID: 15701729 DOI: 10.1152/physiolgenomics.00289.2004] [Citation(s) in RCA: 75] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
The airway epithelium responds to microbial exposure by altering expression of a variety of genes to increase innate host defense. We aimed to delineate the early transcriptional response in human primary bronchial epithelial cells exposed for 6 h to a mixture of IL-1beta and TNF-alpha or heat-inactivated Pseudomonas aeruginosa. Because molecular mechanisms of epithelial innate host defense are not fully understood, the open-ended expression-profiling technique SAGE was applied to construct gene expression profiles covering 30,000 genes: 292 genes were found to be differentially expressed. Expression of seven genes was confirmed by real-time qPCR. Among differentially expressed genes, four classes or families were identified: keratins, proteinase inhibitors, S100 calcium-binding proteins, and IL-1 family members. Marked transcriptional changes were observed for keratins that form a key component of the cytoskeleton in epithelial cells. Expression of antimicrobial proteinase inhibitors SLPI and elafin was elevated after microbial or cytokine exposure. Interestingly, expression of numerous S100 family members was observed, and eight members, including S100A8 and S100A9, were among the most differentially expressed genes. Differential expression was also observed for the IL-1 family members IL-1beta, IL-1 receptor antagonist, and IL-1F9, a newly discovered IL-1 family member. Clustering of differentially expressed genes into biological processes revealed that the early inflammatory response in airway epithelial cells to IL-1beta-TNF-alpha and P. aeruginosa is characterized by expression of genes involved in epithelial barrier formation and host defense.
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Affiliation(s)
- Joost B Vos
- Department of Pulmonology, Leiden University Medical Center, Leiden, The Netherlands.
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Debray C, Vereecken P, Belot N, Teillard P, Brion JP, Pandolfo M, Pochet R. Multifaceted role of galectin-3 on human glioblastoma cell motility. Biochem Biophys Res Commun 2005; 325:1393-8. [PMID: 15555581 DOI: 10.1016/j.bbrc.2004.10.181] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2004] [Indexed: 11/26/2022]
Abstract
Astrocytic tumors' aggressiveness results from an imbalance between cell proliferation and cell death favoring growth, but also from the propensity of tumor cells to detach from the primary tumor site, migrate, and invade the surrounding parenchyma. Astrocytic tumor progression is known to be associated with an increased expression of galectin-3. We investigated in cell culture how galectin-3 expression affects astrocytoma cell motility. Galectin-3 deficient cells were obtained by stable transfection of the U373 glioblastoma cell line with a specific expression antisense plasmid. Cultured galectin-3 deficient glioblastoma cells showed increased motility potential on laminin and modifications in the cytoskeleton reorganization. In addition, c-DNA microarrays and quantitative immunofluorescence analysis showed that galectin-3 deficient U373 cells have an increased expression of integrins-alpha6 and -beta1, proteins known to be implicated in the regulation of cell adhesion.
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Affiliation(s)
- Charles Debray
- Laboratory of Histology, Faculty of Medicine, Université Libre de Bruxelles, Belgium
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Abstract
Abstract
Purpose: The goal of this study was to identify proteins down-regulated during bladder cancer progression.
Experimental design: By using comparative proteome analysis and measurement of mRNA, we found a significant down-regulation of S100C, a member of the S100 family of proteins, in T24 (grade 3) as compared with RT4 (grade 1) bladder cancer cell lines. Moreover, quantification of the mRNA level revealed that decreased expression of the protein reflects a low level of transcription of the S100C gene. Based on this observation, we quantified the S100C mRNA expression level with real-time PCR in bladder cancer biopsy samples obtained from 88 patients followed for a median of 23 months (range, 1-97 months).
Results: We found a significantly lower mRNA expression of S100C in connective tissue invasive tumors (T1, P = 0.0030) and muscle invasive tumors [(T2-T4), P < 0.0001] compared with superficial tumors (Ta). A negative correlation between S100C and histopathologic grade (P = 0.0003) was also observed. Furthermore, the papillary type showed higher expression of S100C than did the solid type of the tumor (P < 0.0001). Importantly, we found that loss of S100C was associated with survival in bladder cancer patients (P = 0.0006).
Conclusions: Our results show that low expression of S100C is associated with poor survival in patients with bladder cancer. Furthermore, loss of S100C in T1 as compared with Ta stage tumors emphasize that S100C expression is suppressed early during bladder cancer development.
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Debeir O, Camby I, Kiss R, Van Ham P, Decaestecker C. A model-based approach for automated in vitro cell tracking and chemotaxis analyses. Cytometry A 2005; 60:29-40. [PMID: 15229855 DOI: 10.1002/cyto.a.20040] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
BACKGROUND Chemotaxis may be studied in two main ways: 1) counting cells passing through an insert (e.g., using Boyden chambers), and 2) directly observing cell cultures (e.g., using Dunn chambers), both in response to stationary concentration gradients. This article promotes the use of Dunn chambers and in vitro cell-tracking, achieved by video microscopy coupled with automatic image analysis software, in order to extract quantitative and qualitative measurements characterizing the response of cells to a diffusible chemical agent. METHODS Previously, we set up a videomicroscopy system coupled with image analysis software that was able to compute cell trajectories from in vitro cell cultures. In the present study, we are introducing a new software increasing the application field of this system to chemotaxis studies. This software is based on an adapted version of the active contour methodology, enabling each cell to be efficiently tracked for hours and resulting in detailed descriptions of individual cell trajectories. The major advantages of this method come from an improved robustness with respect to variability in cell morphologies between different cell lines and dynamical changes in cell shape during cell migration. Moreover, the software includes a very small number of parameters which do not require overly sensitive tuning. Finally, the running time of the software is very short, allowing improved possibilities in acquisition frequency and, consequently, improved descriptions of complex cell trajectories, i.e. trajectories including cell division and cell crossing. RESULTS We validated this software on several artificial and real cell culture experiments in Dunn chambers also including comparisons with manual (human-controlled) analyses. CONCLUSIONS We developed new software and data analysis tools for automated cell tracking which enable cell chemotaxis to be efficiently analyzed.
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Affiliation(s)
- Olivier Debeir
- Department of Logical and Numerical Systems, Faculty of Applied Sciences, Université Libre de Bruxelles, Brussels, Belgium
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Smith SL, Gugger M, Hoban P, Ratschiller D, Watson SG, Field JK, Betticher DC, Heighway J. S100A2 is strongly expressed in airway basal cells, preneoplastic bronchial lesions and primary non-small cell lung carcinomas. Br J Cancer 2004; 91:1515-24. [PMID: 15467767 PMCID: PMC2409919 DOI: 10.1038/sj.bjc.6602188] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
S100A2 gene products were shown to be frequently and dramatically over-represented in non-small cell lung cancer (NSCLC) lesions over normal tissue by microarray analysis. We have now analysed an independent series of NSCLC tumours and multiple matched normal bronchial epithelial sites by RT–PCR and immunohistochemistry to investigate: whether this expression pattern can be confirmed and whether elevated expression is associated with tumour histology, clinical outcome or preneoplasia. In this second series, S100A2 was strongly expressed in 76% (35 out of 46) of tumours, more frequently in squamous cell than adenocarcinomas (P<0.002). This strong expression was not related to high-level gene amplification, but was associated in one of five informative cases with an allele-specific imbalance in transcript levels. Most tumours strongly expressed the ΔNp63 transcript, the product of which is a putative regulator of S100A2 transcription and while all but one of the tumours positive for ΔNp63 expressed S100A2, others negative for this regulator also expressed the gene. Contrary to the hypothesis that S100A2 is a tumour suppressor, no somatic mutations were identified in the coding sequence in 44 tumours. Furthermore, an examination of multiple tumour-free epithelial sites from 20 patients showed that strong expression was often associated with increasing levels of disorder in preinvasive bronchial lesions (P<0.0001).
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MESH Headings
- Adenocarcinoma/genetics
- Adenocarcinoma/metabolism
- Adenocarcinoma/pathology
- Adult
- Aged
- Aged, 80 and over
- Allelic Imbalance
- Biomarkers, Tumor/metabolism
- Bronchi/metabolism
- Bronchi/pathology
- Carcinoma, Large Cell/genetics
- Carcinoma, Large Cell/metabolism
- Carcinoma, Large Cell/pathology
- Carcinoma, Non-Small-Cell Lung/genetics
- Carcinoma, Non-Small-Cell Lung/metabolism
- Carcinoma, Non-Small-Cell Lung/pathology
- Carcinoma, Squamous Cell/genetics
- Carcinoma, Squamous Cell/metabolism
- Carcinoma, Squamous Cell/pathology
- Chemotactic Factors/genetics
- Chemotactic Factors/metabolism
- DNA-Binding Proteins
- Epithelial Cells/metabolism
- Epithelial Cells/pathology
- Female
- Gene Amplification
- Gene Expression Regulation, Neoplastic
- Genes, Tumor Suppressor
- Humans
- Lung Neoplasms/genetics
- Lung Neoplasms/metabolism
- Lung Neoplasms/pathology
- Male
- Middle Aged
- Neoplasms, Basal Cell/genetics
- Neoplasms, Basal Cell/metabolism
- Neoplasms, Basal Cell/pathology
- Phosphoproteins/metabolism
- Precancerous Conditions/metabolism
- Precancerous Conditions/pathology
- S100 Proteins/genetics
- S100 Proteins/metabolism
- Trans-Activators/metabolism
- Transcription Factors
- Tumor Suppressor Proteins
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Affiliation(s)
- S L Smith
- Gene Function Group, Roy Castle Lung Cancer Programme (Clinical Dental Sciences), University of Liverpool Cancer Research Centre, 200 London Road, Liverpool L3 9TA, UK
| | - M Gugger
- Institute of Pathology, University of Bern, 3010 Bern, Switzerland
| | - P Hoban
- Institute of Science and Technology in Medicine, Keele University School of Medicine, University Hospital of North Staffordshire, Stoke-on-Trent ST4 7QB, UK
| | - D Ratschiller
- Institute of Medical Oncology, University of Bern, 3010 Bern, Switzerland
| | - S G Watson
- Gene Function Group, Roy Castle Lung Cancer Programme (Clinical Dental Sciences), University of Liverpool Cancer Research Centre, 200 London Road, Liverpool L3 9TA, UK
| | - J K Field
- Gene Function Group, Roy Castle Lung Cancer Programme (Clinical Dental Sciences), University of Liverpool Cancer Research Centre, 200 London Road, Liverpool L3 9TA, UK
| | - D C Betticher
- Institute of Medical Oncology, University of Bern, 3010 Bern, Switzerland
| | - J Heighway
- Gene Function Group, Roy Castle Lung Cancer Programme (Clinical Dental Sciences), University of Liverpool Cancer Research Centre, 200 London Road, Liverpool L3 9TA, UK
- Roy Castle International Centre for Lung Cancer Research, University of Liverpool Cancer Research Centre, 200 London Road, Liverpool L3 9TA, UK. E-mail:
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Abstract
The S100 gene family comprises more than 20 members whose protein sequences encompass at least one EF-hand Ca2+ binding motif. The expression of individual family members is not ubiquitous for all tissues and there appears to be an element of tissue-specific expression. Molecular analysis of breast tumors has revealed that several S100s, including S100A2, S100A4 and S100A7, exhibit altered expression levels during breast tumorigenesis and/or progression. Subsequent studies have started to describe a functional role for these S100 proteins as well as their mechanism of action and the biochemical pathways they modify. The present review outlines what is known about S100A7 in breast cancer and summarizes the need to better understand the importance of this protein in breast cancer.
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Affiliation(s)
- Ethan D Emberley
- Manitoba Institute of Cell Biology, University of Manitoba, Winnipeg, Canada
- Department of Biochemistry and Medical Genetics, University of Manitoba, Winnipeg, Canada
| | - Leigh C Murphy
- Manitoba Institute of Cell Biology, University of Manitoba, Winnipeg, Canada
- Department of Biochemistry and Medical Genetics, University of Manitoba, Winnipeg, Canada
| | - Peter H Watson
- Manitoba Institute of Cell Biology, University of Manitoba, Winnipeg, Canada
- Department of Pathology, University of Manitoba, Winnipeg, Canada
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