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Yang F, Duan Y, Li Y, Zhu D, Wang Z, Luo Z, Zhang Y, Zhang G, He X, Kang X. S100A6 Regulates nucleus pulposus cell apoptosis via Wnt/β-catenin signaling pathway: an in vitro and in vivo study. Mol Med 2024; 30:87. [PMID: 38877413 PMCID: PMC11179208 DOI: 10.1186/s10020-024-00853-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2024] [Accepted: 06/03/2024] [Indexed: 06/16/2024] Open
Abstract
BACKGROUND Intervertebral disc degeneration (IDD) is a common musculoskeletal degenerative disease, which often leads to low back pain and even disability, resulting in loss of labor ability and decreased quality of life. Although many progresses have been made in the current research, the underlying mechanism of IDD remains unclear. The apoptosis of nucleus pulposus (NP) cells (NPCs) is an important pathological mechanism in intervertebral disc degeneration (IDD). This study evaluated the relationship between S100A6 and NPCs and its underlying mechanism. METHODS Mass spectrometry, bioinformatics, and quantitative real-time polymerase chain reaction (qRT-PCR) analyses were used to screen and verify hub genes for IDD in human IVD specimens with different degeneration degrees. Western blotting, immunohistochemistry (IHC), and/or immunofluorescence (IF) were used to detect the expression level of S100A6 in human NP tissues and NPCs. The apoptotic phenotype of NPCs and Wnt/β-catenin signaling pathway were evaluated using flow cytometry, western blotting, and IF. S100A6 was overexpressed or knocked down in NPCs to determine its impact on apoptosis and Wnt/β-catenin signaling pathway activity. Moreover, we used the XAV-939 to inhibit and SKL2001 to activate the Wnt/β-catenin signaling pathway. The therapeutic effect of S100A6 inhibition on IDD was also evaluated. RESULTS S100A6 expression increased in IDD. In vitro, increased S100A6 expression promoted apoptosis in interleukin (IL)-1β-induced NPCs. In contrast, the inhibition of S100A6 expression partially alleviated the progression of annulus fibrosus (AF) puncture-induced IDD in rats. Mechanistic studies revealed that S100A6 regulates NPC apoptosis via Wnt/β-catenin signaling pathway. CONCLUSIONS This study showed that S100A6 expression increased during IDD and promoted NPCs apoptosis by regulating the Wnt/β-catenin signaling pathway, suggesting that S100A6 is a promising new therapeutic target for IDD.
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Affiliation(s)
- Fengguang Yang
- Department of Orthopedics, The Second Hospital of Lanzhou University, 82 Cuiying Men, Lanzhou, Gansu Province, 730030, China
- The Second Clinical Medical College, Lanzhou University, Lanzhou, China
- Orthopaedics Key Laboratory of Gansu Province, The Second Hospital of Lanzhou University, Lanzhou, 730030, China
| | - Yanni Duan
- Department of Orthopedics, The Second Hospital of Lanzhou University, 82 Cuiying Men, Lanzhou, Gansu Province, 730030, China
- The Second Clinical Medical College, Lanzhou University, Lanzhou, China
- Orthopaedics Key Laboratory of Gansu Province, The Second Hospital of Lanzhou University, Lanzhou, 730030, China
| | - Yanhu Li
- Department of Orthopedics, The Second Hospital of Lanzhou University, 82 Cuiying Men, Lanzhou, Gansu Province, 730030, China
- The Second Clinical Medical College, Lanzhou University, Lanzhou, China
- Orthopaedics Key Laboratory of Gansu Province, The Second Hospital of Lanzhou University, Lanzhou, 730030, China
| | - Daxue Zhu
- Department of Orthopedics, The Second Hospital of Lanzhou University, 82 Cuiying Men, Lanzhou, Gansu Province, 730030, China
- The Second Clinical Medical College, Lanzhou University, Lanzhou, China
- Orthopaedics Key Laboratory of Gansu Province, The Second Hospital of Lanzhou University, Lanzhou, 730030, China
| | - Zhaoheng Wang
- Department of Orthopedics, The Second Hospital of Lanzhou University, 82 Cuiying Men, Lanzhou, Gansu Province, 730030, China
- The Second Clinical Medical College, Lanzhou University, Lanzhou, China
- Orthopaedics Key Laboratory of Gansu Province, The Second Hospital of Lanzhou University, Lanzhou, 730030, China
| | - Zhangbin Luo
- Department of Orthopedics, The Second Hospital of Lanzhou University, 82 Cuiying Men, Lanzhou, Gansu Province, 730030, China
- The Second Clinical Medical College, Lanzhou University, Lanzhou, China
- Orthopaedics Key Laboratory of Gansu Province, The Second Hospital of Lanzhou University, Lanzhou, 730030, China
| | - Yizhi Zhang
- Department of Orthopedics, The Second Hospital of Lanzhou University, 82 Cuiying Men, Lanzhou, Gansu Province, 730030, China
- The Second Clinical Medical College, Lanzhou University, Lanzhou, China
- Orthopaedics Key Laboratory of Gansu Province, The Second Hospital of Lanzhou University, Lanzhou, 730030, China
| | - Guangzhi Zhang
- Department of Orthopedics, The Second Hospital of Lanzhou University, 82 Cuiying Men, Lanzhou, Gansu Province, 730030, China
- The Second Clinical Medical College, Lanzhou University, Lanzhou, China
- Orthopaedics Key Laboratory of Gansu Province, The Second Hospital of Lanzhou University, Lanzhou, 730030, China
| | - Xuegang He
- Department of Orthopedics, The Second Hospital of Lanzhou University, 82 Cuiying Men, Lanzhou, Gansu Province, 730030, China
- The Second Clinical Medical College, Lanzhou University, Lanzhou, China
- Orthopaedics Key Laboratory of Gansu Province, The Second Hospital of Lanzhou University, Lanzhou, 730030, China
| | - Xuewen Kang
- Department of Orthopedics, The Second Hospital of Lanzhou University, 82 Cuiying Men, Lanzhou, Gansu Province, 730030, China.
- The Second Clinical Medical College, Lanzhou University, Lanzhou, China.
- Orthopaedics Key Laboratory of Gansu Province, The Second Hospital of Lanzhou University, Lanzhou, 730030, China.
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Yang F, Ma J, Zhu D, Wang Z, Li Y, He X, Zhang G, Kang X. The Role of S100A6 in Human Diseases: Molecular Mechanisms and Therapeutic Potential. Biomolecules 2023; 13:1139. [PMID: 37509175 PMCID: PMC10377078 DOI: 10.3390/biom13071139] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2023] [Revised: 07/11/2023] [Accepted: 07/14/2023] [Indexed: 07/30/2023] Open
Abstract
S100A6, also known as calcyclin, is a low-molecular-weight Ca2+-binding protein from the S100 family that contains two EF-hands. S100A6 is expressed in a variety of mammalian cells and tissues. It is also expressed in lung, colorectal, pancreatic, and liver cancers, as well as other cancers such as melanoma. S100A6 has many molecular functions related to cell proliferation, the cell cycle, cell differentiation, and the cytoskeleton. It is not only involved in tumor invasion, proliferation, and migration, but also the pathogenesis of other non-neoplastic diseases. In this review, we focus on the molecular mechanisms and potential therapeutic targets of S100A6 in tumors, nervous system diseases, leukemia, endometriosis, cardiovascular disease, osteoarthritis, and other related diseases.
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Affiliation(s)
- Fengguang Yang
- Department of Orthopedics, Lanzhou University Second Hospital, Lanzhou 730030, China; (F.Y.); (X.H.); (G.Z.)
- The Second Clinical Medical College, Lanzhou University, Lanzhou 730030, China
- Orthopaedics Key Laboratory of Gansu Province, Lanzhou University Second Hospital, Lanzhou 730030, China
| | - Jinglin Ma
- Department of Orthopedics, Lanzhou University Second Hospital, Lanzhou 730030, China; (F.Y.); (X.H.); (G.Z.)
- The Second Clinical Medical College, Lanzhou University, Lanzhou 730030, China
- Orthopaedics Key Laboratory of Gansu Province, Lanzhou University Second Hospital, Lanzhou 730030, China
- School of Petrochemical Engineering, Lanzhou University of Technology, Lanzhou 730050, China
| | - Daxue Zhu
- Department of Orthopedics, Lanzhou University Second Hospital, Lanzhou 730030, China; (F.Y.); (X.H.); (G.Z.)
- The Second Clinical Medical College, Lanzhou University, Lanzhou 730030, China
- Orthopaedics Key Laboratory of Gansu Province, Lanzhou University Second Hospital, Lanzhou 730030, China
| | - Zhaoheng Wang
- Department of Orthopedics, Lanzhou University Second Hospital, Lanzhou 730030, China; (F.Y.); (X.H.); (G.Z.)
- The Second Clinical Medical College, Lanzhou University, Lanzhou 730030, China
- Orthopaedics Key Laboratory of Gansu Province, Lanzhou University Second Hospital, Lanzhou 730030, China
| | - Yanhu Li
- Department of Orthopedics, Lanzhou University Second Hospital, Lanzhou 730030, China; (F.Y.); (X.H.); (G.Z.)
- The Second Clinical Medical College, Lanzhou University, Lanzhou 730030, China
- Orthopaedics Key Laboratory of Gansu Province, Lanzhou University Second Hospital, Lanzhou 730030, China
| | - Xuegang He
- Department of Orthopedics, Lanzhou University Second Hospital, Lanzhou 730030, China; (F.Y.); (X.H.); (G.Z.)
- The Second Clinical Medical College, Lanzhou University, Lanzhou 730030, China
- Orthopaedics Key Laboratory of Gansu Province, Lanzhou University Second Hospital, Lanzhou 730030, China
| | - Guangzhi Zhang
- Department of Orthopedics, Lanzhou University Second Hospital, Lanzhou 730030, China; (F.Y.); (X.H.); (G.Z.)
- The Second Clinical Medical College, Lanzhou University, Lanzhou 730030, China
- Orthopaedics Key Laboratory of Gansu Province, Lanzhou University Second Hospital, Lanzhou 730030, China
| | - Xuewen Kang
- Department of Orthopedics, Lanzhou University Second Hospital, Lanzhou 730030, China; (F.Y.); (X.H.); (G.Z.)
- The Second Clinical Medical College, Lanzhou University, Lanzhou 730030, China
- Orthopaedics Key Laboratory of Gansu Province, Lanzhou University Second Hospital, Lanzhou 730030, China
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Zhou Y, Zha Y, Yang Y, Ma T, Li H, Liang J. S100 proteins in cardiovascular diseases. Mol Med 2023; 29:68. [PMID: 37217870 DOI: 10.1186/s10020-023-00662-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Accepted: 05/02/2023] [Indexed: 05/24/2023] Open
Abstract
Cardiovascular diseases have become a serious threat to human health and life worldwide and have the highest fatality rate. Therefore, the prevention and treatment of cardiovascular diseases have become a focus for public health experts. The expression of S100 proteins is cell- and tissue-specific; they are implicated in cardiovascular, neurodegenerative, and inflammatory diseases and cancer. This review article discusses the progress in the research on the role of S100 protein family members in cardiovascular diseases. Understanding the mechanisms by which these proteins exert their biological function may provide novel concepts for preventing, treating, and predicting cardiovascular diseases.
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Affiliation(s)
- Yue Zhou
- Medical College, Yangzhou University, Yangzhou, China
| | - Yiwen Zha
- Medical College, Yangzhou University, Yangzhou, China
| | - Yongqi Yang
- Medical College, Yangzhou University, Yangzhou, China
| | - Tan Ma
- Medical College, Yangzhou University, Yangzhou, China
- Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, 225001, Jiangsu, China
| | - Hongliang Li
- Medical College, Yangzhou University, Yangzhou, China.
- Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, 225001, Jiangsu, China.
| | - Jingyan Liang
- Medical College, Yangzhou University, Yangzhou, China.
- Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, 225001, Jiangsu, China.
- Jiangsu Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Treatment of Senile Diseases, Yangzhou University, Yangzhou, China.
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Barnard SJ, Haunschild J, Heiser L, Dieterlen MT, Klaeske K, Borger MA, Etz CD. Apoptotic Cell Death in Bicuspid-Aortic-Valve-Associated Aortopathy. Int J Mol Sci 2023; 24:ijms24087429. [PMID: 37108591 PMCID: PMC10138609 DOI: 10.3390/ijms24087429] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Revised: 04/12/2023] [Accepted: 04/12/2023] [Indexed: 04/29/2023] Open
Abstract
The bicuspid aortic valve (BAV) is the most common cardiovascular congenital abnormality and is frequently associated with proximal aortopathy. We analyzed the tissues of patients with bicuspid and tricuspid aortic valve (TAV) regarding the protein expression of the receptor for advanced glycation products (RAGE) and its ligands, the advanced glycation end products (AGE), as well as the S100 calcium-binding protein A6 (S100A6). Since S100A6 overexpression attenuates cardiomyocyte apoptosis, we investigated the diverse pathways of apoptosis and autophagic cell death in the human ascending aortic specimen of 57 and 49 patients with BAV and TAV morphology, respectively, to identify differences and explanations for the higher risk of patients with BAV for severe cardiovascular diseases. We found significantly increased levels of RAGE, AGE and S100A6 in the aortic tissue of bicuspid patients which may promote apoptosis via the upregulation of caspase-3 activity. Although increased caspase-3 activity was not detected in BAV patients, increased protein expression of the 48 kDa fragment of vimentin was detected. mTOR as a downstream protein of Akt was significantly higher in patients with BAV, whereas Bcl-2 was increased in patients with TAV, assuming a better protection against apoptosis. The autophagy-related proteins p62 and ERK1/2 were increased in patients with BAV, assuming that cells in bicuspid tissue are more likely to undergo apoptotic cell death leading to changes in the wall and finally to aortopathies. We provide first-hand evidence of increased apoptotic cell death in the aortic tissue of BAV patients which may thus provide an explanation for the increased risk of structural aortic wall deficiency possibly underlying aortic aneurysm formation or acute dissection.
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Affiliation(s)
- Sarah J Barnard
- Heisenberg Working Group, Saxonian Incubator for Clinical Translation, Philipp-Rosenthal-Str. 55, 04103 Leipzig, Germany
| | - Josephina Haunschild
- Heisenberg Working Group, Saxonian Incubator for Clinical Translation, Philipp-Rosenthal-Str. 55, 04103 Leipzig, Germany
- University Department for Cardiac Surgery, Heart Center Leipzig, 04289 Leipzig, Germany
| | - Linda Heiser
- University Department for Cardiac Surgery, Heart Center Leipzig, 04289 Leipzig, Germany
| | - Maja T Dieterlen
- University Department for Cardiac Surgery, Heart Center Leipzig, 04289 Leipzig, Germany
| | - Kristin Klaeske
- University Department for Cardiac Surgery, Heart Center Leipzig, 04289 Leipzig, Germany
| | - Michael A Borger
- University Department for Cardiac Surgery, Heart Center Leipzig, 04289 Leipzig, Germany
| | - Christian D Etz
- Heisenberg Working Group, Saxonian Incubator for Clinical Translation, Philipp-Rosenthal-Str. 55, 04103 Leipzig, Germany
- University Department for Cardiac Surgery, Heart Center Leipzig, 04289 Leipzig, Germany
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5
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Chen B, Zheng D, Liu C, Bhandari A, Hirachan S, Shen C, Mainali S, Li H, Jiang W, Xu J, Zhang X, Tang K, Zhang W. S100A6 promotes the development of thyroid cancer and inhibits apoptosis of thyroid cancer cells through the PI3K/AKT/mTOR pathway. Pathol Res Pract 2023; 242:154325. [PMID: 36680929 DOI: 10.1016/j.prp.2023.154325] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Revised: 11/29/2022] [Accepted: 01/17/2023] [Indexed: 01/20/2023]
Abstract
High levels of S100A6 have been associated with progression in some types of human cancers. Cancers related to S100A6 have been reported to include lung cancer, cervical cancer, pancreatic cancer, gastric cancer, colon cancer, etc., but its role in the molecular pathogenesis of these cancers is largely unknown. This study investigated the expression and functional roles of S100A6 in human thyroid cancer. The expression level of S100A6 in thyroid cancer cells was determined by bioinformatics and transcriptomic analysis. Furthermore, the potential functions of S100A6 in tumorigenesis were analyzed by cell proliferation, migration, invasion, and Western blot assays in human thyroid cancer cells. Public database queries revealed high S100A6 expression in thyroid cancer. In addition, we also found that high expression of S100A6 was positively correlated with malignant clinicopathological characteristics of thyroid cancer in The Cancer Genome Atlas database. qPCR results confirmed the high expression of S100A6 in thyroid cancer cells. S100A6 silencing inhibited cell proliferation, migration, and invasion. Western blot assays and response experiments showed that S100A6 promotes cell proliferation and tumorigenicity partly through the PI3K/AKT/mTOR signaling pathway. These results suggest that S100A6 affects the progression of thyroid cancer and can be used as a target in the future treatment of thyroid cancer.
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Affiliation(s)
- Buran Chen
- Department of Breast Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, PR China
| | - Danni Zheng
- Department of Breast Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, PR China
| | - Conghui Liu
- Department of Breast Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, PR China
| | - Adheesh Bhandari
- Department of Breast Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, PR China
| | - Suzita Hirachan
- Department of General Surgery, Breast and Thyroid Unit, Tribhuvan University Teaching Hospital, Kathmandu, Nepal
| | - Cuihua Shen
- Department of Orthopaedics, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, PR China
| | - Sumnima Mainali
- Department of Obstetrics and Gynecology, Kulhudhuffushi Regional Hospital, Kulhudhuffushi, Maldives
| | - Huihui Li
- Department of Breast Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, PR China
| | - Wenjie Jiang
- Department of Breast Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, PR China
| | - Jie Xu
- Department of ICU, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, PR China
| | - Xiaohua Zhang
- Department of Breast Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, PR China
| | - Kaifu Tang
- Key Laboratory of Diagnosis and Treatment of Severe Hepatopancreatic Diseases Province, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, PR China.
| | - Wei Zhang
- Department of Breast Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, PR China.
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6
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S100A6 Protein-Expression and Function in Norm and Pathology. Int J Mol Sci 2023; 24:ijms24021341. [PMID: 36674873 PMCID: PMC9866648 DOI: 10.3390/ijms24021341] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 01/03/2023] [Accepted: 01/06/2023] [Indexed: 01/13/2023] Open
Abstract
S100A6, also known as calcyclin, is a calcium-binding protein belonging to the S100 protein family. It was first identified and purified more than 30 years ago. Initial structural studies, focused mostly on the mode and affinity of Ca2+ binding and resolution of the resultant conformational changes, were soon complemented by research on its expression, localization and identification of binding partners. With time, the use of biophysical methods helped to resolve the structure and versatility of S100A6 complexes with some of its ligands. Meanwhile, it became clear that S100A6 expression was altered in various pathological states and correlated with the stage/progression of many diseases, including cancers, indicative of its important, and possibly causative, role in some of these diseases. This, in turn, prompted researchers to look for the mechanism of S100A6 action and to identify the intermediary signaling pathways and effectors. After all these years, our knowledge on various aspects of S100A6 biology is robust but still incomplete. The list of S100A6 ligands is growing all the time, as is our understanding of the physiological importance of these interactions. The present review summarizes available data concerning S100A6 expression/localization, interaction with intracellular and extracellular targets, involvement in Ca2+-dependent cellular processes and association with various pathologies.
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Delangre E, Oppliger E, Berkcan S, Gjorgjieva M, Correia de Sousa M, Foti M. S100 Proteins in Fatty Liver Disease and Hepatocellular Carcinoma. Int J Mol Sci 2022; 23:ijms231911030. [PMID: 36232334 PMCID: PMC9570375 DOI: 10.3390/ijms231911030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Revised: 09/14/2022] [Accepted: 09/15/2022] [Indexed: 01/27/2023] Open
Abstract
Non-alcoholic fatty liver disease (NAFLD) is a highly prevalent and slow progressing hepatic pathology characterized by different stages of increasing severity which can ultimately give rise to the development of hepatocellular carcinoma (HCC). Besides drastic lifestyle changes, few drugs are effective to some extent alleviate NAFLD and HCC remains a poorly curable cancer. Among the deregulated molecular mechanisms promoting NAFLD and HCC, several members of the S100 proteins family appear to play an important role in the development of hepatic steatosis, non-alcoholic steatohepatitis (NASH) and HCC. Specific members of this Ca2+-binding protein family are indeed significantly overexpressed in either parenchymal or non-parenchymal liver cells, where they exert pleiotropic pathological functions driving NAFLD/NASH to severe stages and/or cancer development. The aberrant activity of S100 specific isoforms has also been reported to drive malignancy in liver cancers. Herein, we discuss the implication of several key members of this family, e.g., S100A4, S100A6, S100A8, S100A9 and S100A11, in NAFLD and HCC, with a particular focus on their intracellular versus extracellular functions in different hepatic cell types. Their clinical relevance as non-invasive diagnostic/prognostic biomarkers for the different stages of NAFLD and HCC, or their pharmacological targeting for therapeutic purpose, is further debated.
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Li P, Lv X, Zhang Z, Xie S. S100A6/miR193a regulates the proliferation, invasion, migration and angiogenesis of lung cancer cells through the P53 acetylation. Am J Transl Res 2019; 11:4634-4649. [PMID: 31497188 PMCID: PMC6731400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2019] [Accepted: 07/14/2019] [Indexed: 06/10/2023]
Abstract
Non-small cell lung cancer (NSCLC) is accounted for 80% to 85% of the total lung cancer cases and still a difficult problem to solve at present. The present study was aimed to explore the effect of S100A6 on the proliferation, invasion, migration and angiogenesis in lung cancer cell lines with the change of miR-193a expression and P53 acetylation. The expression of S100A6, CDK2, cyclinD1, VEGF, ANGII, anti-acetylp53 (K373), K-AC, P21 and Noxa were analyzed by western blot analysis. RT-qPCR analysis was used to confirm the transfection effects. CCK-8 assay and flow cytometry were reflecting the cell proliferation. Wound healing assay and transwell assay were evaluating the cell invasion and migration. The dual-luciferase reporter assay was to confirm the S100A6 as a target of miR-193a. Immunofluorescence and immunohistochemical analysis were analyzing the S100A6 expression in cells and tumor tissues, respectively. As a result, S100A6 expression was increased in lung cancer cell lines and S100A6 expressed the highest in A549 cells which was chosen for the subsequent experiment. S100A6 overexpression promoted the proliferation, invasion, migration and angiogenesis of lung cancer cells with the promotion of degradation of P53 acetylation. In addition, S100A6 was demonstrated to be a target of miR193a. Moreover, miR193a expression was decreased in lung cancer cell lines and miR193a expressed the lowest in A549 cells which was chosen for the subsequent experiment. And, miR193a overexpression inhibited the proliferation, invasion, migration and angiogenesis of lung cancer cells with the enhancement of P53 acetylation. The effects of S100A6 overexpression and miR193a overexpression on tumor growth in vivo experiments were the same with that in the cell experiments. In conclusion, this study indicated that S100A6 overexpression could promote the proliferation, invasion, migration and angiogenesis of lung cancer cells by inhibiting the P53 acetylation and miR193a overexpression could reversed the above effects by decreasing the S100A6 expression in both vitro and vivo experiments.
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Affiliation(s)
- Peng Li
- Department of Respiratory Medicine, Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer HospitalZhengzhou, Henan, China
| | - Xiaodong Lv
- Department of Central Laboratory, Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer HospitalZhengzhou, Henan, China
| | - Zhiqiang Zhang
- Department of Oncology, The Peoples’ Hospital of Liaoning ProvinceShenyang, Liaoning, China
| | - Shanshan Xie
- Department of Neuroelectrophysiology, People’s Hospital of ZhengzhouZhengzhou, Henan, China
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Tian ZY, Wang CY, Wang T, Li YC, Wang ZY. Glial S100A6 Degrades β-amyloid Aggregation through Targeting Competition with Zinc Ions. Aging Dis 2019; 10:756-769. [PMID: 31440382 PMCID: PMC6675528 DOI: 10.14336/ad.2018.0912] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2018] [Accepted: 09/12/2018] [Indexed: 01/02/2023] Open
Abstract
Evidence has been accumulating that zinc ions can trigger β-amyloid (Aβ) deposition and senile plaque formation in the brain, a pathological hallmark of Alzheimer's disease (AD). Chelating zinc inhibits Aβ aggregation and may hold promise as a therapeutic strategy for AD. S100A6 is an acidic Ca2+/Zn2+-binding protein found only in a small number of astrocytes in the normal brain. However, in the AD brain, S100A6 is highly expressed in astrocytes around Aβ plaques. The role of the astrocytic S100A6 upregulation in AD is unknown. In the present study, we examined the effects of S100A6 on Aβ plaques and intracellular zinc levels in a mouse model of AD. Chronic exposure to zinc increased Aβ deposition and S100A6 expression, both reversible by the zinc chelator clioquinol, in the brains of amyloid precursor protein/presenilin 1 (APP/PS1) transgenic mice. To examine whether exogenous S100A6 could induce Aβ plaque disaggregation through competition for zinc in vitro, we incubated APP/PS1 mouse brain sections with recombinant human S100A6 protein or co-incubated them with human S100A6-expressing cells. Both treatments efficiently reduced the Aβ plaque burden in situ. In addition, treatment with exogenous S100A6 protected cultured COS-7 cells against zinc toxicity. Our results show for the first time that increased S100A6 levels correlate with both Aβ disaggregation and decrease of Aβ plaque-associated zinc contents in brain sections with AD-like pathology. Astrocytic S100A6 in AD may protect from Aβ deposition through zinc sequestration.
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Affiliation(s)
- Zhi-Ying Tian
- 1Institute of Health Sciences, Key Laboratory of Medical Cell Biology of Ministry of Education, China Medical University, Shenyang 110122, China
| | - Chun-Yan Wang
- 1Institute of Health Sciences, Key Laboratory of Medical Cell Biology of Ministry of Education, China Medical University, Shenyang 110122, China
| | - Tao Wang
- 1Institute of Health Sciences, Key Laboratory of Medical Cell Biology of Ministry of Education, China Medical University, Shenyang 110122, China
| | - Yan-Chun Li
- 2Department of Medicine, The University of Chicago, Chicago, IL 60637, USA
| | - Zhan-You Wang
- 1Institute of Health Sciences, Key Laboratory of Medical Cell Biology of Ministry of Education, China Medical University, Shenyang 110122, China
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Piotrowska Ż, Niezgoda M, Łebkowski W, Filipek A, Domian N, Kasacka I. Sex differences in distribution of cannabinoid receptors (CB1 and CB2), S100A6 and CacyBP/SIP in human ageing hearts. Biol Sex Differ 2018; 9:50. [PMID: 30482253 PMCID: PMC6258148 DOI: 10.1186/s13293-018-0209-3] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Accepted: 11/09/2018] [Indexed: 02/04/2023] Open
Abstract
Background Women live about 4 years longer due to lower prevalence of cardiovascular complication with ageing. However, the mechanisms involved in the preservation of heart functionality in women have not been fully elucidated. The endocannabinoid system fulfils a significant role in the regulation of cardiovascular system functioning. Cannabinoids, acting through specific receptors (CB1 and CB2), influence on blood pressure, heart rate and myocardial contractility. The function of cardiac muscle cells is strictly dependent on calcium ions. Calcium homeostasis in cardiomyocytes is subjected to complex regulation via calcium-binding proteins. Among them, increasing attention has been paid to the recently discovered S100A6 and CacyBP/SIP. In order to better understand sex differences in the regulation of cardiomyocyte function during ageing, we undertook the present research aimed at immunohistochemical identification and comparative evaluation of cannabinoid receptors, S100A6 and CacyBP/SIP, in the myocardium of ageing men and women. Methods The study was conducted on the hearts of 12 men and 10 women (organ donors) without a history of cardiovascular disease. The subjects were divided into two age groups: subjects older than 50 years and subjects under 50 years old. Paraffin heart sections were processed by immunohistochemistry for detection of cannabinoids receptors, S100A6 and CacyBP/SIP. In the heart samples from each study, participant’s expression of genes coding for CB1, CB2, S100A6 and CacyBP/SIP using real-time PCR method was measured. Results CB1 and CB2 immunoreactivity in the cytoplasm of cardiomyocytes in the heart of subjects over 50 was weaker than in younger individuals. In the heart of younger men, CB1-immunoreactivity was weaker and CB2-immunoreaction was stronger compared to women. In the hearts of older men, the CB1-immunostaining was more intense and CB2-immunoreactivity was weaker than in women. Immunodetection of CB1 shoved the presence of receptor in the intercalated discs, but only in the hearts of individuals over the 50 years old. In the hearts of older individuals, stronger immunolabelling was observed for S100A6 and CacyBP/SIP. Male hearts had greater S100A6-immunoreactivity (both age groups) but less CacyBP/SIP immunostaining (individuals over 50 years) compared to the age-matched women. The expression of genes coding CB1, CB2, S100A6 and CacyBP/SIP in the human heart was sex and age-dependent. Observed changes between men and women as well as between subject under and over 50 years were consistent with immunohistochemically stated changes in peptide content. Conclusion Together, the data presented here indicate a close interaction between ageing and sex on the distribution and levels of cannabinoid receptors (CB1, CB2), S100A6 and CacyBP/SIP in the human heart.
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Affiliation(s)
- Żaneta Piotrowska
- Department of Histology and Cytophysiology, Medical University of Białystok, Białystok, Poland
| | - Michał Niezgoda
- Department of Histology and Cytophysiology, Medical University of Białystok, Białystok, Poland
| | - Wojciech Łebkowski
- Department of Neurosurgery, Medical University of Białystok, Białystok, Poland
| | - Anna Filipek
- Nencki Institute of Experimental Biology, Polish Academy of Sciences, Warsaw, Poland
| | - Natalia Domian
- Department of Histology and Cytophysiology, Medical University of Białystok, Białystok, Poland
| | - Irena Kasacka
- Department of Histology and Cytophysiology, Medical University of Białystok, Białystok, Poland.
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Kasacka I, Piotrowska Ż, Filipek A, Lebkowski W. Comparative evaluation of cannabinoid receptors, apelin and S100A6 protein in the heart of women of different age groups. BMC Cardiovasc Disord 2018; 18:190. [PMID: 30286717 PMCID: PMC6172787 DOI: 10.1186/s12872-018-0923-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2017] [Accepted: 09/18/2018] [Indexed: 12/19/2022] Open
Abstract
Background Recent studies have shown a significant role of the endocannabinoid system, apelin and S100A6 protein in the regulation of cardiovascular system functioning. The aim of the study was to compare and evaluate the distribution of cannabinoid receptors (CB1 and CB2), apelin and S100A6 protein in the heart of healthy women in different age groups. Methods The study was conducted on the hearts of 10 women (organ donors) without a history of cardiovascular disease, who were divided into two age groups: women older than 50 years and women under 50 years of age. Paraffin heart sections were processed by immunohistochemistry for detection of cannabinoids receptors (CB1 and CB2), apelin and S100A6 protein. Results CB1 and CB2 immunoreactivity in the cytoplasm of cardiomyocytes in the heart of women over 50 was weaker than in younger individuals. There was also strong immunoreactivity of CB1 in intercalated discs (ICDs) of the heart, only in women over 50. The presence of this receptor in this location was not found in women under 50. Apelin- and S100A6-immunoreactivity in the cardiomyocytes was stronger in older women compared to women under 50.The CB1, apelin and S100A6 immunostaining in the endothelium of myocardial vessels was weaker in women over 50 than in younger women, while intensity of CB2- immunoreaction in coronary endothelium was similar in both groups of women. The results of the study indicate the important role of endocannabinoids, apelin, and S100A6 protein in cardiac muscle function. Conclusion This report might contribute to a better understanding of the role of endocannabinoid system, apelin and S100 proteins in heart function as well as shed new light on processes involved in age-related cardiomyopathy.
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Affiliation(s)
- Irena Kasacka
- Department of Histology and Cytophysiology, Medical University of Bialystok, Mickiewicza 2C street, 15-222, Białystok, Poland.
| | - Żaneta Piotrowska
- Department of Histology and Cytophysiology, Medical University of Bialystok, Mickiewicza 2C street, 15-222, Białystok, Poland
| | - Anna Filipek
- Nencki Institute of Experimental Biology, Laboratory of Calcium Binding Proteins, Ludwika Pasteura 3 street, 02-093, Warszawa, Poland
| | - Wojciech Lebkowski
- Department of Neurosurgery, Medical University of Bialystok, Marii Skłodowskiej-Curie 24A street, 15-276, Białystok, Poland
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Vyas FS, Nelson CP, Dickenson JM. Role of transglutaminase 2 in A 1 adenosine receptor- and β 2-adrenoceptor-mediated pharmacological pre- and post-conditioning against hypoxia-reoxygenation-induced cell death in H9c2 cells. Eur J Pharmacol 2017; 819:144-160. [PMID: 29208472 DOI: 10.1016/j.ejphar.2017.11.049] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2017] [Revised: 11/20/2017] [Accepted: 11/30/2017] [Indexed: 02/07/2023]
Abstract
Pharmacologically-induced pre- and post-conditioning represent attractive therapeutic strategies to reduce ischaemia/reperfusion injury during cardiac surgery and following myocardial infarction. We have previously reported that transglutaminase 2 (TG2) activity is modulated by the A1 adenosine receptor and β2-adrenoceptor in H9c2 cardiomyoblasts. The primary aim of this study was to determine the role of TG2 in A1 adenosine receptor and β2-adrenoceptor-induced pharmacological pre- and post-conditioning in the H9c2 cells. H9c2 cells were exposed to 8h hypoxia (1% O2) followed by 18h reoxygenation, after which cell viability was assessed by monitoring mitochondrial reduction of MTT, lactate dehydrogenase release and caspase-3 activation. N6-cyclopentyladenosine (CPA; A1 adenosine receptor agonist), formoterol (β2-adrenoceptor agonist) or isoprenaline (non-selective β-adrenoceptor agonist) were added before hypoxia/reoxygenation (pre-conditioning) or at the start of reoxygenation following hypoxia (post-conditioning). Pharmacological pre- and post-conditioning with CPA and isoprenaline significantly reduced hypoxia/reoxygenation-induced cell death. In contrast, formoterol did not elicit protection. Pre-treatment with pertussis toxin (Gi/o-protein inhibitor), DPCPX (A1 adenosine receptor antagonist) or TG2 inhibitors (Z-DON and R283) attenuated the A1 adenosine receptor-induced pharmacological pre- and post-conditioning. Similarly, pertussis toxin, ICI 118,551 (β2-adrenoceptor antagonist) or TG2 inhibition attenuated the isoprenaline-induced cell survival. Knockdown of TG2 using small interfering RNA (siRNA) attenuated CPA and isoprenaline-induced pharmacological pre- and post-conditioning. Finally, proteomic analysis following isoprenaline treatment identified known (e.g. protein S100-A6) and novel (e.g. adenine phosphoribosyltransferase) protein substrates for TG2. These results have shown that A1 adenosine receptor and β2-adrenoceptor-induced protection against simulated hypoxia/reoxygenation occurs in a TG2 and Gi/o-protein dependent manner in H9c2 cardiomyoblasts.
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Affiliation(s)
- Falguni S Vyas
- School of Science and Technology, Nottingham Trent University, Clifton Lane, Nottingham NG11 8NS, UK
| | - Carl P Nelson
- School of Science and Technology, Nottingham Trent University, Clifton Lane, Nottingham NG11 8NS, UK
| | - John M Dickenson
- School of Science and Technology, Nottingham Trent University, Clifton Lane, Nottingham NG11 8NS, UK.
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He X, Xu X, Khan AQ, Ling W. High Expression of S100A6 Predicts Unfavorable Prognosis of Lung Squamous Cell Cancer. Med Sci Monit 2017; 23:5011-5017. [PMID: 29053662 PMCID: PMC5661742 DOI: 10.12659/msm.904279] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Background S100 family of proteins is mainly involved in regulation of intracellular calcium homeostasis. Aberrant expression of S100 family members has been reported in many types of cancers. However, as a member of S100 family, the prognostic value of S100A6 for lung squamous cell carcinoma (SCC) has not been well-studied. Material/Methods Using immunohistochemistry, we investigated the expression of S100A6 in 177 patients with SCC and further divided the cohort into a high S100A6 expression group and a low S100A6 expression group. The chi-square test was applied to analyze the correlation between S100A6 expression and clinicopathological factors. Univariate analysis using the Kaplan-Meier method was performed to compare the difference in survival rates between the high S100A6 expression group and the low S100A6 expression group; multivariate analysis with Cox regression model was used to identify independent prognostic risk factors. Results In our experiment, we demonstrated that the expression of S100A6 was significantly associated with patient age and tumor differentiation. High-expression of S100A6 was shown to be substantially related to the unfavorable prognosis of SCC. Moreover, our results confirmed that S100A6 was an independent risk factor for SCC prognosis, and could predict unfavorable prognosis. Conclusions High-expression of S100A6 was identified as an independent unfavorable prognostic factor for SCC, suggesting that targeting S100A6 may result in the development of potential targeted drug for SCC.
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Affiliation(s)
- Xigang He
- Department of Respiratory Medicine, Rizhao Lanshan People's Hospital, Rizhao, Shandong, China (mainland)
| | - Xueliang Xu
- Department of Respiratory Medicine, Linyi People's Hospital, Linyi, Shandong, China (mainland)
| | - Abdul Qadir Khan
- Department of General Surgery, Qilu Hospital affiliated with Shandong University, Jinan, Shandong, China (mainland)
| | - Wei Ling
- Department of Respiratory Medicine, Linyi People's Hospital, Linyi, Shandong, China (mainland)
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Calcium-regulatory proteins as modulators of chemotherapy in human neuroblastoma. Oncotarget 2017; 8:22876-22893. [PMID: 28206967 PMCID: PMC5410270 DOI: 10.18632/oncotarget.15283] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2016] [Accepted: 01/27/2017] [Indexed: 12/11/2022] Open
Abstract
Neuroblastoma (NB) is a pediatric cancer treated with poly-chemotherapy including platinum complexes (e.g. cisplatin (CDDP), carboplatin), DNA alkylating agents, and topoisomerase I inhibitors (e.g. topotecan (TOPO)). Despite aggressive treatment, NB may become resistant to chemotherapy. We investigated whether CDDP and TOPO treatment of NB cells interacts with the expression and function of proteins involved in regulating calcium signaling. Human neuroblastoma cell lines SH-SY5Y, IMR-32 and NLF were used to investigate the effects of CDDP and TOPO on cell viability, apoptosis, calcium homeostasis, and expression of selected proteins regulating intracellular calcium concentration ([Ca2+]i). In addition, the impact of pharmacological inhibition of [Ca2+]i-regulating proteins on neuroblastoma cell survival was studied. Treatment of neuroblastoma cells with increasing concentrations of CDDP (0.1−10 μM) or TOPO (0.1 nM−1 μM) induced cytotoxicity and increased apoptosis in a concentration- and time-dependent manner. Both drugs increased [Ca2+]i over time. Treatment with CDDP or TOPO also modified mRNA expression of selected genes encoding [Ca2+]i-regulating proteins. Differentially regulated genes included S100A6, ITPR1, ITPR3, RYR1 and RYR3. With FACS and confocal laser scanning microscopy experiments we validated their differential expression at the protein level. Importantly, treatment of neuroblastoma cells with pharmacological modulators of [Ca2+]i-regulating proteins in combination with CDDP or TOPO increased cytotoxicity. Thus, our results confirm an important role of calcium signaling in the response of neuroblastoma cells to chemotherapy and suggest [Ca2+]i modulation as a promising strategy for adjunctive treatment.
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Donato R, Sorci G, Giambanco I. S100A6 protein: functional roles. Cell Mol Life Sci 2017; 74:2749-2760. [PMID: 28417162 PMCID: PMC11107720 DOI: 10.1007/s00018-017-2526-9] [Citation(s) in RCA: 88] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2016] [Revised: 02/24/2017] [Accepted: 02/27/2017] [Indexed: 12/20/2022]
Abstract
S100A6 protein belongs to the A group of the S100 protein family of Ca2+-binding proteins. It is expressed in a limited number of cell types in adult normal tissues and in several tumor cell types. As an intracellular protein, S100A6 has been implicated in the regulation of several cellular functions, such as proliferation, apoptosis, the cytoskeleton dynamics, and the cellular response to different stress factors. S100A6 can be secreted/released by certain cell types which points to extracellular effects of the protein. RAGE (receptor for advanced glycation endproducts) and integrin β1 transduce some extracellular S100A6's effects. Dosage of serum S100A6 might aid in diagnosis in oncology.
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Affiliation(s)
- Rosario Donato
- Department of Experimental Medicine, Centro Universitario per la Ricerca sulla Genomica Funzionale, Perugia Medical School, University of Perugia, Piazza Lucio Severi 1, 06132, Perugia, Italy.
- Department of Experimental Medicine, Istituto Interuniversitario di Miologia (Interuniversity Institute for Myology), Perugia Medical School, University of Perugia, Piazza Lucio Severi 1, 06132, Perugia, Italy.
| | - Guglielmo Sorci
- Department of Experimental Medicine, Centro Universitario per la Ricerca sulla Genomica Funzionale, Perugia Medical School, University of Perugia, Piazza Lucio Severi 1, 06132, Perugia, Italy
- Department of Experimental Medicine, Istituto Interuniversitario di Miologia (Interuniversity Institute for Myology), Perugia Medical School, University of Perugia, Piazza Lucio Severi 1, 06132, Perugia, Italy
| | - Ileana Giambanco
- Department of Experimental Medicine, Centro Universitario per la Ricerca sulla Genomica Funzionale, Perugia Medical School, University of Perugia, Piazza Lucio Severi 1, 06132, Perugia, Italy
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Tamai H, Yamaguchi H, Miyake K, Takatori M, Kitano T, Yamanaka S, Yui S, Fukunaga K, Nakayama K, Inokuchi K. Amlexanox Downregulates S100A6 to Sensitize KMT2A/AFF1-Positive Acute Lymphoblastic Leukemia to TNFα Treatment. Cancer Res 2017. [DOI: 10.1158/0008-5472.can-16-2974] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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17
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Mofid A, Newman NS, Lee PJH, Abbasi C, Matkar PN, Rudenko D, Kuliszewski MA, Chen HH, Afrasiabi K, Tsoporis JN, Gramolini AO, Connelly KA, Parker TG, Leong-Poi H. Cardiac Overexpression of S100A6 Attenuates Cardiomyocyte Apoptosis and Reduces Infarct Size After Myocardial Ischemia-Reperfusion. J Am Heart Assoc 2017; 6:JAHA.116.004738. [PMID: 28174168 PMCID: PMC5523770 DOI: 10.1161/jaha.116.004738] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Background Cardiomyocyte‐specific transgenic mice overexpressing S100A6, a member of the family of EF‐hand calcium‐binding proteins, develop less cardiac hypertrophy, interstitial fibrosis, and myocyte apoptosis after permanent coronary ligation, findings that support S100A6 as a potential therapeutic target after acute myocardial infarction. Our purpose was to investigate S100A6 gene therapy for acute myocardial ischemia‐reperfusion. Methods and Results We first performed in vitro studies to examine the effects of S100A6 overexpression and knockdown in rat neonatal cardiomyocytes. S100A6 overexpression improved calcium transients and protected against apoptosis induced by hypoxia‐reoxygenation via enhanced calcineurin activity, whereas knockdown of S100A6 had detrimental effects. For in vivo studies, human S100A6 plasmid or empty plasmid was delivered to the left ventricular myocardium by ultrasound‐targeted microbubble destruction in Fischer‐344 rats 2 days prior to a 30‐minute ligation of the left anterior descending coronary artery followed by reperfusion. Control animals received no therapy. Pretreatment with S100A6 gene therapy yielded a survival advantage compared to empty‐plasmid and nontreated controls. S100A6‐pretreated animals had reduced infarct size and improved left ventricular systolic function, with less myocyte apoptosis, attenuated cardiac hypertrophy, and less cardiac fibrosis. Conclusions S100A6 overexpression by ultrasound‐targeted microbubble destruction helps ameliorate myocardial ischemia‐reperfusion, resulting in lower mortality and improved left ventricular systolic function post–ischemia‐reperfusion via attenuation of apoptosis, reduction in cardiac hypertrophy, and reduced infarct size. Our results indicate that S100A6 is a potential therapeutic target for acute myocardial infarction.
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Affiliation(s)
- Azadeh Mofid
- Division of Cardiology, Keenan Research Centre for Biomedical Science, Li Ka Shing Knowledge Institute, St. Michael's Hospital, University of Toronto, Ontario, Canada
| | - Nadav S Newman
- Division of Cardiology, Keenan Research Centre for Biomedical Science, Li Ka Shing Knowledge Institute, St. Michael's Hospital, University of Toronto, Ontario, Canada
| | - Paul J H Lee
- Division of Cardiology, Keenan Research Centre for Biomedical Science, Li Ka Shing Knowledge Institute, St. Michael's Hospital, University of Toronto, Ontario, Canada
| | - Cynthia Abbasi
- Department of Physiology, University of Toronto, Ontario, Canada
| | - Pratiek N Matkar
- Division of Cardiology, Keenan Research Centre for Biomedical Science, Li Ka Shing Knowledge Institute, St. Michael's Hospital, University of Toronto, Ontario, Canada
| | - Dmitriy Rudenko
- Division of Cardiology, Keenan Research Centre for Biomedical Science, Li Ka Shing Knowledge Institute, St. Michael's Hospital, University of Toronto, Ontario, Canada
| | - Michael A Kuliszewski
- Division of Cardiology, Keenan Research Centre for Biomedical Science, Li Ka Shing Knowledge Institute, St. Michael's Hospital, University of Toronto, Ontario, Canada
| | - Hao H Chen
- Division of Cardiology, Keenan Research Centre for Biomedical Science, Li Ka Shing Knowledge Institute, St. Michael's Hospital, University of Toronto, Ontario, Canada
| | - Kolsoom Afrasiabi
- Division of Cardiology, Keenan Research Centre for Biomedical Science, Li Ka Shing Knowledge Institute, St. Michael's Hospital, University of Toronto, Ontario, Canada
| | - James N Tsoporis
- Division of Cardiology, Keenan Research Centre for Biomedical Science, Li Ka Shing Knowledge Institute, St. Michael's Hospital, University of Toronto, Ontario, Canada
| | | | - Kim A Connelly
- Division of Cardiology, Keenan Research Centre for Biomedical Science, Li Ka Shing Knowledge Institute, St. Michael's Hospital, University of Toronto, Ontario, Canada
| | - Thomas G Parker
- Division of Cardiology, Keenan Research Centre for Biomedical Science, Li Ka Shing Knowledge Institute, St. Michael's Hospital, University of Toronto, Ontario, Canada
| | - Howard Leong-Poi
- Division of Cardiology, Keenan Research Centre for Biomedical Science, Li Ka Shing Knowledge Institute, St. Michael's Hospital, University of Toronto, Ontario, Canada
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18
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Soh YQ, Peh GSL, Mehta JS. Translational issues for human corneal endothelial tissue engineering. J Tissue Eng Regen Med 2016; 11:2425-2442. [DOI: 10.1002/term.2131] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2015] [Revised: 11/19/2015] [Accepted: 12/10/2015] [Indexed: 12/13/2022]
Affiliation(s)
- Yu Qiang Soh
- Tissue Engineering and Stem Cell Group; Singapore Eye Research Institute; Singapore
- Singapore National Eye Centre; Singapore
| | - Gary S. L. Peh
- Tissue Engineering and Stem Cell Group; Singapore Eye Research Institute; Singapore
- Ophthalmology Academic Clinical Programme; Duke-NUS Graduate Medical School; Singapore
| | - Jodhbir S. Mehta
- Tissue Engineering and Stem Cell Group; Singapore Eye Research Institute; Singapore
- Singapore National Eye Centre; Singapore
- Ophthalmology Academic Clinical Programme; Duke-NUS Graduate Medical School; Singapore
- Department of Clinical Sciences; Duke-NUS Graduate Medical School; Singapore
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Kasacka I, Piotrowska Ż, Filipek A, Majewski M. Influence of doxazosin on biosynthesis of S100A6 and atrial natriuretic factor peptides in the heart of spontaneously hypertensive rats. Exp Biol Med (Maywood) 2015; 241:375-81. [PMID: 26515144 DOI: 10.1177/1535370215611972] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2015] [Accepted: 09/17/2015] [Indexed: 01/19/2023] Open
Abstract
Hypertension frequently results in severe complications in cardiovascular system and histopathological changes in the heart. To better understand the cellular processes and signaling pathways responsible for the proper functioning of the heart, we decided to check whether doxazosin affects the density of structures containing S100A6 and atrial natriuretic factor in the heart of spontaneously hypertensive rats. The aim of this study is to find differences in the density of the structures containing S100A6 and atrial natriuretic factor in the heart of spontaneously hypertensive rats treated with doxazosin compared to untreated animals. Fragments of heart were collected from five spontaneously hypertensive rats and five spontaneously hypertensive rats receiving doxazosin for six weeks (dose 0.1 mg per 1 kg of body weight). On the paraffin sections S100A6 and atrial natriuretic factor peptides were localized in the heart using immunohistochemistry. Positive immunohistochemical reaction for S100A6 was observed in atrial and ventricular cardiomyocytes and in the coronary vasculature. In the heart of hypertensive rats treated with doxazosin the S100A6 immunoreactivity was significantly lower compared to untreated animals. Immunodetection of atrial natriuretic factor in the heart of rats confirmed presence of peptide in atrial myocardium. Delicate atrial natriuretic factor-immunoreactivity was observed also in few ventricular cardiomyocytes. The atrial natriuretic factor-immunosignal was significantly weaker in hearts of hypertensive rats receiving doxazosin compared to spontaneously hypertensive rats untreated. Since we found that doxazosin reduces the levels of S100A6 and atrial natriuretic factor peptides in the heart of spontaneously hypertensive rats, it can be assumed that cardiovascular disorders that occur in hypertension may be associated with disturbances of cellular processes and signaling pathways.
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Affiliation(s)
- Irena Kasacka
- Department of Histology and Cytophysiology, Medical University of Bialystok, Mickiewicza 2C, 15-222 Białystok, Poland
| | - Żaneta Piotrowska
- Department of Histology and Cytophysiology, Medical University of Bialystok, Mickiewicza 2C, 15-222 Białystok, Poland
| | - Anna Filipek
- Nencki Institute of Experimental Biology, Laboratory of Calcium Binding Proteins, 02-093 Warsaw, Poland
| | - Mariusz Majewski
- Department of Human Physiology, Faculty of Medical Sciences, University of Warmia and Mazury in Olsztyn, 10-082 Olsztyn, Poland
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Zhao M, Wang KJ, Tan Z, Zheng CM, Liang Z, Zhao JQ. Identification of potential therapeutic targets for papillary thyroid carcinoma by bioinformatics analysis. Oncol Lett 2015; 11:51-58. [PMID: 26870166 PMCID: PMC4726925 DOI: 10.3892/ol.2015.3829] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2014] [Accepted: 08/06/2015] [Indexed: 12/27/2022] Open
Abstract
The aim of the present study was to identify potential therapeutic targets for papillary thyroid carcinoma (PTC) and to investigate the possible mechanism underlying this disease. The gene expression profile, GSE53157, was downloaded from the Gene Expression Omnibus database. Only 10 chips, including 3 specimens of normal thyroid tissues and 7 specimens of well-differentiated thyroid carcinomas, were analyzed in the present study. Differentially-expressed genes (DEGs) between PTC patients and normal individuals were identified. Next, Gene Ontology and Kyoto Encyclopedia of Genes and Genomes pathway analyses of DEGs were performed. Modules in the protein-protein interaction (PPI) network were identified. Significant target genes were selected from the microRNA (miRNA) regulatory network. Furthermore, the integrated network was constructed with the miRNA regulatory and PPI network modules, and key target genes were screened. A total of 668 DEGs were identified. Modules M1, M2 and M3 were identified from the PPI network. From the modules, DEGs of cyclin-dependent kinase inhibitor 1A, S100 calcium binding protein A6 (S100A6), dual specificity phosphatase 5, keratin 19, met proto-oncogene (MET) and lectin galactoside-binding soluble 3 were included in the Malacards database. In the miRNA regulatory and integrated networks, genes of cyclin-dependent kinase inhibitor 1C (CDKN1C), peroxisome proliferator-activated receptor γ, aryl hydrocarbon receptor, basic helix-loop-helix family, member e40 and reticulon 1 were the key target genes. S100A6, MET and CDKN1C may exhibit key roles in the progression and development of PTC, and may be used as specific therapeutic targets in the treatment of PTC. However, further experiments are required to confirm these results.
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Affiliation(s)
- Ming Zhao
- Department of Head and Neck Surgery, Zhejiang Cancer Hospital, Hangzhou, Zhejiang 310022, P.R. China
| | - Ke-Jing Wang
- Department of Head and Neck Surgery, Zhejiang Cancer Hospital, Hangzhou, Zhejiang 310022, P.R. China
| | - Zhuo Tan
- Department of Head and Neck Surgery, Zhejiang Cancer Hospital, Hangzhou, Zhejiang 310022, P.R. China
| | - Chuan-Ming Zheng
- Department of Head and Neck Surgery, Zhejiang Cancer Hospital, Hangzhou, Zhejiang 310022, P.R. China
| | - Zhong Liang
- Department of Head and Neck Surgery, Zhejiang Cancer Hospital, Hangzhou, Zhejiang 310022, P.R. China
| | - Jian-Qiang Zhao
- Department of Head and Neck Surgery, Zhejiang Cancer Hospital, Hangzhou, Zhejiang 310022, P.R. China
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Zhou X, Wang P, Michal JJ, Wang Y, Zhao J, Jiang Z, Liu B. Molecular characterization of the porcine S100A6 gene and analysis of its expression in pigs infected with highly pathogenic porcine reproductive and respiratory syndrome virus (HP-PRRSV). J Appl Genet 2014; 56:355-63. [PMID: 25480733 DOI: 10.1007/s13353-014-0260-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2014] [Revised: 10/05/2014] [Accepted: 11/17/2014] [Indexed: 01/10/2023]
Abstract
Our previous microarray study revealed that S100A6 was significantly upregulated in porcine alveolar macrophages (PAMs) infected with highly pathogenic porcine reproductive and respiratory syndrome virus (HP-PRRSV). In the present study, we cloned both cDNA and genomic DNA sequences of the gene. Transient transfection indicated that the porcine S100A6 protein was located in the nucleus and cytoplasm. Reverse transcription polymerase chain reaction (RT-PCR) revealed that the porcine S100A6 gene was highly expressed in the kidney and subcutaneous fat. Polyinosinic-polycytidylic acid [poly (I:C)] induced porcine S100A6 gene expression in PK-15 cells. Quantitative real-time PCR (Q-PCR) analysis further showed that the porcine S100A6 gene was upregulated in different cells and tissues of Tongcheng pigs infected with HP-PRRSV. Chromosome walking obtained the porcine S100A6 promoter region and then luciferase reporter assays confirmed its regulatory activities. We observed a putative NF-κB binding site in the core promoter region, which may explain the upregulation of porcine S100A6 in response to PRRSV. Transfection of NF-κB (p65 subunit) intensely induced the promoter activity of the porcine S100A6 gene, while an NF-κB inhibitor, pyrrolidine dithiocarbamate (PDTC), inhibited this activity. Furthermore, compared to its wild type, the promoter activity was significantly reduced when it contained a mutant NF-κB binding site. All these results provide a solid foundation to further investigate how S100A6 is involved in PRRSV infection.
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Affiliation(s)
- Xiang Zhou
- Key Lab of Agricultural Animal Genetics, Breeding, and Reproduction of Ministry of Education & Key Lab of Swine Genetics and Breeding of Ministry of Agriculture, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, 430070, Hubei, People's Republic of China
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Teichert-Kuliszewska K, Tsoporis JN, Desjardins JF, Yin J, Wang L, Kuebler WM, Parker TG. Absence of the calcium-binding protein, S100A1, confers pulmonary hypertension in mice associated with endothelial dysfunction and apoptosis. Cardiovasc Res 2014; 105:8-19. [PMID: 25395393 DOI: 10.1093/cvr/cvu241] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
AIMS S100A1, a 10-kDa, Ca(2+)-binding protein, is expressed in endothelial cells (ECs) and binds eNOS. Its absence is associated with impaired production of nitric oxide (NO) and mild systemic hypertension. As endothelial dysfunction contributes to clinical and experimental pulmonary hypertension (PH), we investigated the impact of deleting S100A1 in mice, on pulmonary haemodynamics, endothelial function, NO production, associated signalling pathways, and apoptosis. METHODS AND RESULTS Compared with wild-type (WT), S100A1-knock-out mice (KO) exhibited increased right ventricular (RV) weight/body weight ratio and elevated RV pressure in the absence of altered left ventricular filling pressures, accompanied by increase in wall thickness of muscularized pulmonary arteries and a reduction in microvascular perfusion. In isolated lung preparations, KO revealed reduced basal NO, blunted dose-responsiveness to acetylcholine, and augmented basal and angiotensin (AII)-induced pulmonary vascular resistance (R₀) compared with WT. Pre-treatment of KO lungs with S100A1 attenuated the AII-induced increase in pulmonary arterial pressure and R₀. S100A1-induced phosphorylation of eNOS, Akt, and ERK1/2 is attenuated in pulmonary EC of KO compared with WT. Basal and TNF-α-induced EC apoptosis is greater in KO vs. WT, and cell survival is enhanced by S100A1 treatment. CONCLUSION Our data demonstrate that the absence of S100A1 results in PH by disruption of its normal capacity to (i) enhance pulmonary EC function by induction of eNOS activity and NO levels via Akt/ERK1/2 pathways and (ii) promote EC survival. The ability of exogenously administered S100A1 to rescue this phenotype makes it an attractive therapeutic target in the treatment of PH.
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Affiliation(s)
| | | | | | - Jun Yin
- Department of Surgery, Keenan Research Centre for Biomedical Science and Li Ka Shing Knowledge Institute, St Michael's Hospital, University of Toronto, Toronto, Canada
| | - Liming Wang
- Department of Surgery, Keenan Research Centre for Biomedical Science and Li Ka Shing Knowledge Institute, St Michael's Hospital, University of Toronto, Toronto, Canada
| | - Wolfgang M Kuebler
- Department of Surgery, Keenan Research Centre for Biomedical Science and Li Ka Shing Knowledge Institute, St Michael's Hospital, University of Toronto, Toronto, Canada
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S100A6 as a potential serum prognostic biomarker and therapeutic target in gastric cancer. Dig Dis Sci 2014; 59:2136-44. [PMID: 24705642 DOI: 10.1007/s10620-014-3137-z] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/31/2013] [Accepted: 03/23/2014] [Indexed: 01/28/2023]
Abstract
BACKGROUND Increased expression of S100A6 in many cancer tissues and its association with tumor behavior and patient prognosis were demonstrated, and there are no studies analyzing the serum levels of S100A6 in patients with gastric cancer (GC). AIM Serum S100A6 levels were investigated as a marker of tumor aggressiveness in patients with GC, and the S100A6 gene was examined as a potential therapeutic target in GC. METHODS Serum S100A6 levels were detected in 103 GC patients and 72 healthy subjects by ELISA. Clinicopathological features of GC patients were analyzed in correlation to serum S100A6 levels. Two small interfering RNAs against S100A6 (siRNA1-S100A6 and siRNA2-S100A6) were generated and transfected into SGC7901 cells using pSUPER gfp-neo vector, and the effects of S100A6 knockdown on cell proliferation, invasion and apoptosis were evaluated in vitro. The effects of S100A6 silencing on tumor growth and metastasis were evaluated in vivo in a pseudo-metastatic GC nude mouse model. RESULTS Serum S100A6 levels were significantly higher in GC patients than in healthy controls (P < 0.001). Serum S100A6 levels were significantly correlated with lymph node metastasis, TNM stage, perineural invasion and vascular invasion. Serum S100A6 level was an independent predictor of overall survival. SiRNA-mediated silencing of S100A6 significantly induced apoptosis and decreased proliferation, clone formation and the invasiveness of GC SGC7901 cells in vitro and significantly reduced tumor volume and number in vivo (P < 0.01). CONCLUSION Serum S100A6 level may serve as a potential prognostic biomarker in GC. Inhibition of S100A6 decreased the metastatic potential of GC cells.
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Tamai H, Miyake K, Yamaguchi H, Shimada T, Dan K, Inokuchi K. Inhibition of S100A6 induces GVL effects in MLL/AF4-positive ALL in human PBMC-SCID mice. Bone Marrow Transplant 2014; 49:699-703. [PMID: 24583627 DOI: 10.1038/bmt.2014.18] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2013] [Revised: 12/17/2013] [Accepted: 12/23/2013] [Indexed: 11/09/2022]
Abstract
Mixed-lineage leukemia (MLL)/AF4-positive ALL is associated with a poor prognosis even after allogeneic hematopoietic SCT (allo-HSCT). We reported previously that MLL/AF4-positive ALL shows resistance to TNF-α, which is the main factor in the GVL effect, by upregulation of S100A6 expression followed by interference with the p53-caspase 8-caspase 3 pathway in vitro. We examined whether inhibition of S100A6 can induce an effective GVL effect on MLL/AF4-positive ALL in a mouse model. MLL/AF4-positive ALL cell lines (SEM) transduced with lentiviral vectors expressing both S100A6 siRNA and luciferase (SEM-Luc-S100A6 siRNA) were produced. SEM-Luc-S100A6 siRNA cells and SEM-Luc-control siRNA cells were injected into groups of five SCID mice (1 × 10(7)/body). After confirmation of engraftment of SEM cells by in vivo imaging, the mice in each group were injected with 4.8 × 10(7) human PBMCs. SEM-Luc-S100A6 siRNA-injected mice showed significantly longer survival periods than SEM-Luc-control siRNA-injected mice (P=0.002). SEM-Luc-S100A6 siRNA-injected mice showed significantly slower tumor growth than those injected with SEM-Luc-control siRNA (P<0.0001). These results suggested that inhibition of S100A6 may be a promising therapeutic target for MLL/AF4-positive ALL in combination with allo-HSCT.
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Affiliation(s)
- H Tamai
- Department of Hematology, Nippon Medical School, Tokyo, Japan
| | - K Miyake
- Department of Biochemistry and Molecular Biology, Division of Gene Therapy Research Center for Advanced Medical Technology, Nippon Medical School, Tokyo, Japan
| | - H Yamaguchi
- Department of Hematology, Nippon Medical School, Tokyo, Japan
| | - T Shimada
- Department of Biochemistry and Molecular Biology, Division of Gene Therapy Research Center for Advanced Medical Technology, Nippon Medical School, Tokyo, Japan
| | - K Dan
- Department of Hematology, Nippon Medical School, Tokyo, Japan
| | - K Inokuchi
- Department of Hematology, Nippon Medical School, Tokyo, Japan
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Li Z, Tang M, Ling B, Liu S, Zheng Y, Nie C, Yuan Z, Zhou L, Guo G, Tong A, Wei Y. Increased expression of S100A6 promotes cell proliferation and migration in human hepatocellular carcinoma. J Mol Med (Berl) 2013; 92:291-303. [PMID: 24281831 DOI: 10.1007/s00109-013-1104-3] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2013] [Revised: 10/20/2013] [Accepted: 11/13/2013] [Indexed: 02/05/2023]
Abstract
UNLABELLED High levels of S100A6 have been associated with poor outcome in some types of human cancers, but the role of S100A6 in the molecular pathogenesis of these cancers is largely unknown. This study was performed to explore the expression and functional roles of S100A6 in hepatocellular carcinoma (HCC). The expression level of S100A6 in HCC tumor and corresponding peritumoral tissues were determined by immunohistochemistry analysis. The potential functions of S100A6 in tumorigenesis and metastasis were analyzed by cell proliferation, migration, and invasion assays in human liver cancer cells. Moreover, through expression and purification of S100A6 recombinant protein tagged with cell-penetrating peptide, we analyzed its complex extracellular/intracellular effects in a S100A6-silenced cellular model. As a result, the expression of S100A6 was up-regulated in human HCC compared with adjacent peritumoral tissues. S100A6 silencing inhibited the growth and motility of HCC cells, while intracellular re-expression of S100A6 could rescue the proliferation and migration defects. Intracellular over-expression of S100A6 resulted in down-regulation of E-cadherin expression and promoted nuclear accumulation of β-catenin. Moreover, we found that the enhanced cell proliferation and motility after S100A6 stimulation were dependent on the activation of PI3K/AKT pathway. These results suggest that S100A6 may be involved in promotion and progression of human liver cancer. KEY MESSAGES S100A6 is overexpressed in human hepatocellular carcinoma clinical specimens. S100A6 promotes proliferation and migration of human hepatoma cells. Overexpression of S100A6 results in alteration of E-cadherin and β-catenin. The multi-effects of S100A6 may be mediated in part by PI3K/AKT pathway activation.
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Affiliation(s)
- Ziqiang Li
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, Chengdu, People's Republic of China,
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Abstract
The S100 protein family consists of 24 members functionally distributed into three main subgroups: those that only exert intracellular regulatory effects, those with intracellular and extracellular functions and those which mainly exert extracellular regulatory effects. S100 proteins are only expressed in vertebrates and show cell-specific expression patterns. In some instances, a particular S100 protein can be induced in pathological circumstances in a cell type that does not express it in normal physiological conditions. Within cells, S100 proteins are involved in aspects of regulation of proliferation, differentiation, apoptosis, Ca2+ homeostasis, energy metabolism, inflammation and migration/invasion through interactions with a variety of target proteins including enzymes, cytoskeletal subunits, receptors, transcription factors and nucleic acids. Some S100 proteins are secreted or released and regulate cell functions in an autocrine and paracrine manner via activation of surface receptors (e.g. the receptor for advanced glycation end-products and toll-like receptor 4), G-protein-coupled receptors, scavenger receptors, or heparan sulfate proteoglycans and N-glycans. Extracellular S100A4 and S100B also interact with epidermal growth factor and basic fibroblast growth factor, respectively, thereby enhancing the activity of the corresponding receptors. Thus, extracellular S100 proteins exert regulatory activities on monocytes/macrophages/microglia, neutrophils, lymphocytes, mast cells, articular chondrocytes, endothelial and vascular smooth muscle cells, neurons, astrocytes, Schwann cells, epithelial cells, myoblasts and cardiomyocytes, thereby participating in innate and adaptive immune responses, cell migration and chemotaxis, tissue development and repair, and leukocyte and tumor cell invasion.
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Affiliation(s)
- R Donato
- Department of Experimental Medicine and Biochemical Sciences, University of Perugia, Via del Giochetto, 06122 Perugia, Italy.
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Yin Y, Jiang L, Fang D, Jiang L, Zhou J. Differentially expressed genes of human microvascular endothelial cells in response to anti-dengue virus NS1 antibodies by suppression subtractive hybridization. Viral Immunol 2013; 26:185-91. [PMID: 23697814 DOI: 10.1089/vim.2012.0063] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
It has been previously shown that anti-dengue virus (DENV) nonstructural protein NS1 antibodies could act as autoantibodies that direct against one or more of the host's own proteins, which has potential implications for dengue hemorrhagic fever pathogenesis. In the present study, we have employed suppression subtractive hybridization (SSH) to identify the differentially expressed genes from human microvascular endothelial cells (HMEC-1) in response to anti-dengue virus type 2 NS1 antibodies (anti-DENV2 NS1 Abs). A total of 35 clones from the SSH cDNA library were randomly selected for further analysis using bioinformatics tools after vector screening. After searching for sequence homology in NCBI GenBank database with BLASTN and BLASTX programs, 23 obtained sequences with significant matches (E-values <1×10(-4)) in the SSH library. The predicted genes in the subtracted library include immune response molecules (CD59 antigen preproprotein preproprotein, MURR1), signal transduction molecules (Nuclear casein kinase and cyclin-dependent kinase substrate 1), calcium-binding proteins (S100A6, Annexin A2 isoform 1/2), and cell-membrane component (Yip1 domain family). From these clones, 5 upregulated genes were selected for differential expression profiling by real-time RT-PCR to confirm their upregulated status. The results confirmed their differential upregulation, and thus verified the success of SSHs and the likely involvement of these genes in dengue pathogenesis.
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Affiliation(s)
- Yue Yin
- Department of Microbiology, Sun Yat-sen University, Guangzhou 510080, People's Republic of China
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Ormiston ML, Deng Y, Rundle N, Bendjelloul F, Tsoporis JN, Parker TG, Stewart DJ, Courtman DW. A Lymphocyte-Dependent Mode of Action for Imatinib Mesylate in Experimental Pulmonary Hypertension. THE AMERICAN JOURNAL OF PATHOLOGY 2013; 182:1541-51. [DOI: 10.1016/j.ajpath.2013.01.031] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2012] [Revised: 12/24/2012] [Accepted: 01/17/2013] [Indexed: 12/22/2022]
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Maletzki C, Bodammer P, Breitrück A, Kerkhoff C. S100 proteins as diagnostic and prognostic markers in colorectal and hepatocellular carcinoma. HEPATITIS MONTHLY 2012; 12:e7240. [PMID: 23166536 PMCID: PMC3500829 DOI: 10.5812/hepatmon.7240] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/02/2012] [Revised: 07/04/2012] [Accepted: 07/16/2012] [Indexed: 12/11/2022]
Abstract
CONTEXT Clinical and experimental studies have suggested a link between S100 gene ex-pression and neoplastic disorders, however, the molecular mechanisms of this associa-tion are not well understood. The aim of this review was to conduct a comprehensive literature search in order to understand the possible underlying molecular mechanisms of this association. We also discuss their application as diagnostic and prognostic mark-ers in colorectal and hepatocellular carcinoma. EVIDENCE ACQUISITIONS We searched Pubmed (NLM) and Web of Science (ISI Web of Knowledge). RESULTS S100 genes display a complex expression pattern in colorectal and hepatocel- lular carcinoma. They are expressed in tumor and/or tumor stroma cells, and they exert both pro- and antitumorigenic actions. In view of this complexity, it becomes clear that S100 proteins might act as both friend and foe. The biological role of the S100 genes is predicted to depend on the relative contributions of the different cell types at specific stages of tumor progression. CONCLUSIONS Further research is required in order to uncover the functional role of S100 genes in tumorigenesis. Answers to this issue are needed before we can more fully un-derstand the clinical relevance of S100 protein expression within epithelial tumors, with regard to their potential applicability as biomarkers for diagnosis and therapy decisions.
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Affiliation(s)
- Claudia Maletzki
- Department of General Surgery, Division of Molecular Oncology and Immunotherapy, University of Rostock, Rostock, Germany
| | - Peggy Bodammer
- Department of General Surgery, Division of Gastroenterology, University of Rostock, Rostock, Germany
- Fraunhofer Institute for Cell Therapy and Immunology, Department of Immunology, AG “Extracorporeal Immune Modulation (EXIM)”, Rostock, Germany
| | - Anne Breitrück
- Fraunhofer Institute for Cell Therapy and Immunology, Department of Immunology, AG “Extracorporeal Immune Modulation (EXIM)”, Rostock, Germany
- Department of Internal Medicine, Division of Nephrology, University of Rostock, Rostock, Germany
| | - Claus Kerkhoff
- Fraunhofer Institute for Cell Therapy and Immunology, Department of Immunology, AG “Extracorporeal Immune Modulation (EXIM)”, Rostock, Germany
- Department of Internal Medicine, Division of Nephrology, University of Rostock, Rostock, Germany
- Corresponding author: Claus Kerkhoff, Fraunhofer Institute for Cell Therapy and Immunology, Department of Immunology, AG EXIM, Schillingallee 68/69, 18057 Rostock, Germany. Tel.: +49-3814947368, Fax: +49-32122701962, E-mail:
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Capra E, Beretta R, Parazzi V, Viganò M, Lazzari L, Baldi A, Giordano R. Changes in the proteomic profile of adipose tissue-derived mesenchymal stem cells during passages. Proteome Sci 2012; 10:46. [PMID: 22828447 PMCID: PMC3499380 DOI: 10.1186/1477-5956-10-46] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2012] [Accepted: 06/29/2012] [Indexed: 12/13/2022] Open
Abstract
UNLABELLED BACKGROUND Human mesenchymal stem cells (hMSC) have recently raised the attention because of their therapeutic potential in the novel context of regenerative medicine. However, the safety of these new and promising cellular products should be carefully defined before they can be used in the clinical setting, as. The protein expression profile of these cells might reveal potential hazards associated with senescence and tumoral transformation which may occur during culture. Proteomic is a valuable tool for hMSC characterization and identification of possible changes during expansion. RESULTS We used Surface Enhanced Laser Desorption/Ionization-Time Of Flight-Mass Spectrometry (SELDI-ToF-MS) to evaluate the presence of stable molecular markers in adipose tissue-derived mesenchymal stem cells (AD-MSC) produced under conditions of good manufacturing practices (GMP). Proteomic patterns of cells prepared were consistent, with 4 up-regulated peaks (mass-to-charge ratio (m/z) 8950, 10087, 10345, and 13058) through subculture steps (P0-P7) with similar trend in three donors. Among the differentially expressed proteins found in the cytoplasmic and nuclear fractions, a cytoplasmic 10.1 kDa protein was upregulated during culture passages and was identified as S100A6 (Calcyclin). CONCLUSIONS This study suggests for the first time that common variation could occur in AD-MSC from different donors, with the identification of S100A6, a protein prevalently related to cell proliferation and cell culture condition. These results support the hypothesis of common proteomic changes during MSCs expansion and could give important insight in the knowledge of molecular mechanisms intervening during MSC expansion.
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Resistance of MLL-AFF1-positive acute lymphoblastic leukemia to tumor necrosis factor-alpha is mediated by S100A6 upregulation. Blood Cancer J 2011; 1:e38. [PMID: 22829076 PMCID: PMC3256756 DOI: 10.1038/bcj.2011.37] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2011] [Revised: 08/01/2011] [Accepted: 08/10/2011] [Indexed: 01/17/2023] Open
Abstract
Mixed-lineage leukemia (MLL)-AFF1 (MLL-AF4)-positive acute lymphoblastic leukemia (ALL) is associated with poor prognosis, even after allogeneic hematopoietic stem cell transplantation (allo-HSCT). The resistance to graft-versus-leukemia (GVL) effects may be responsible for the poor effect of allo-HSCT on MLL-AFF1-positive ALL. Cytotoxic effector mechanisms mediated by tumor necrosis factor-alpha (TNF-α) was reported to contribute to the GVL effect. We showed that MLL-AFF1-positive ALL cell lines are resistant to TNF-α. To examine the mechanism of resistance to TNF-α of MLL-AFF1-positive leukemia, we focused on S100A6 as a possible factor. Upregulation of S100A6 expression and inhibition of the p53-caspase 8-caspase 3 pathway were observed only in MLL-AFF1-positive ALL cell lines in the presence of TNF-α. The effect of S100A6 on resistance to TNF-α by inhibition of the p53-caspase 8-caspase 3 pathway of MLL-AFF1-positive ALL cell lines were also confirmed by analysis using small interfering RNA against S100A6. This pathway was also confirmed in previously established MLL-AFF1 transgenic mice. These results suggest that MLL-AFF1-positive ALL escapes from TNF-α-mediated apoptosis by upregulation of S100A6 expression, followed by interfering with p53-caspase 8-caspase 3 pathway. These results suggest that S100A6 may be a promising therapeutic target for MLL-AFF1-positive ALL in combination with allo-HSCT.
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Tsoporis JN, Izhar S, Proteau G, Slaughter G, Parker TG. S100B-RAGE dependent VEGF secretion by cardiac myocytes induces myofibroblast proliferation. J Mol Cell Cardiol 2011; 52:464-73. [PMID: 21889514 DOI: 10.1016/j.yjmcc.2011.08.015] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/05/2011] [Revised: 08/09/2011] [Accepted: 08/16/2011] [Indexed: 12/30/2022]
Abstract
Post-infarct remodeling is associated with the upregulation of the receptor for advanced glycation end products (RAGE), the induction of its ligand the calcium binding protein S100B and the release of the potent endothelial-cell specific mitogen vascular endothelial growth factor (VEGF). To determine a possible functional interaction between S100B, RAGE and VEGF we stimulated rat neonatal cardiac myocyte cultures transfected with either RAGE or a dominant-negative cytoplasmic deletion mutant of RAGE with S100B for 48 h. Under baseline conditions, cardiac myocytes express low levels of RAGE and VEGF and secrete VEGF in the medium as measured by ELISA. In RAGE overexpressing myocytes, S100B (100 nM) resulted in increases in VEGF mRNA, VEGF protein, VEGF secretion, and activation of the transcription factor NF-κB. Pre-treatment of RAGE overexpressing myocytes with the NF-κB inhibitor caffeic acid phenethyl ester inhibited increases in VEGF mRNA, VEGF protein and VEGF in the medium by S100B. In myocytes expressing dominant-negative RAGE, S100B did not induce VEGF mRNA, VEGF protein, VEGF secretion or NF-κB activation. In culture, rat neonatal and adult cardiac fibroblasts undergo phenotypic transition to myofibroblasts. Treatment of neonatal and adult myofibroblasts with VEGF (10 ng/mL) induces VEGFR-2 (flk-1/KDR) tyrosine kinase phosphorylation, ERK1/2 phosphorylation and myofibroblast proliferation. Together these data demonstrate that secreted VEGF by cardiac myocytes in response to S100B via RAGE ligation induces myofibroblast proliferation potentially contributing to scar formation observed in infarcted myocardium. This article is part of a Special Issue entitled "Local Signaling in Myocytes".
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Affiliation(s)
- James N Tsoporis
- Division of Cardiology, Department of Medicine, Keenan Research Centre, Li Ka Shing Knowledge Institute, St. Michael's Hospital, University of Toronto, Toronto, Ontario, Canada.
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Jin KS, Park CM, Lee YW. Identification of differentially expressed genes by 2,3,7,8-tetrachlorodibenzo-p-dioxin in human bronchial epithelial cells. Hum Exp Toxicol 2011; 31:107-12. [DOI: 10.1177/0960327111417266] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- K-S Jin
- Department of Biomedical Laboratory Science, Inje University, Gimhae, Gyeongnam, Korea
- Blue-Bio Industry Regional Innovation Center, Dongeui University, Busan, Korea
| | - CM Park
- Department of Biomedical Laboratory Science, Inje University, Gimhae, Gyeongnam, Korea
- Department of Pathology, College of Medicine, Inje University, Busan, Korea
| | - Y-W Lee
- Department of Biomedical Laboratory Science, Inje University, Gimhae, Gyeongnam, Korea
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Thaisuchat H, Baumann M, Pontiller J, Hesse F, Ernst W. Identification of a novel temperature sensitive promoter in CHO cells. BMC Biotechnol 2011; 11:51. [PMID: 21569433 PMCID: PMC3118111 DOI: 10.1186/1472-6750-11-51] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2010] [Accepted: 05/12/2011] [Indexed: 11/17/2022] Open
Abstract
Background The Chinese hamster ovary (CHO) expression system is the leading production platform for manufacturing biopharmaceuticals for the treatment of numerous human diseases. Efforts to optimize the production process also include the genetic construct encoding the therapeutic gene. Here we report about the successful identification of an endogenous highly active gene promoter obtained from CHO cells which shows conditionally inducible gene expression at reduced temperature. Results Based on CHO microarray expression data abundantly transcribed genes were selected as potential promoter candidates. The S100a6 (calcyclin) and its flanking regions were identified from a genomic CHO-K1 lambda-phage library. Computational analyses showed a predicted TSS, a TATA-box and several TFBSs within the 1.5 kb region upstream the ATG start signal. Various constructs were investigated for promoter activity at 37°C and 33°C in transient luciferase reporter gene assays. Most constructs showed expression levels even higher than the SV40 control and on average a more than two-fold increase at lower temperature. We identified the core promoter sequence (222 bp) comprising two SP1 sites and could show a further increase in activity by duplication of this minimal sequence. Conclusions This novel CHO promoter permits conditionally high-level gene expression. Upon a shift to 33°C, a two to three-fold increase of basal productivity (already higher than SV40 promoter) is achieved. This property is of particular advantage for a process with reduced expression during initial cell growth followed by the production phase at low temperature with a boost in expression. Additionally, production of toxic proteins becomes feasible, since cell metabolism and gene expression do not directly interfere. The CHO S100a6 promoter can be characterized as cold-shock responsive with the potential for improving process performance of mammalian expression systems.
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Affiliation(s)
- Haruthai Thaisuchat
- Department of Biotechnology, University of Natural Resources and Life Sciences Vienna, Muthgasse 11, 1190 Vienna, Austria
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Tyagi S, George J, Singh R, Bhui K, Shukla Y. Neoplastic Alterations Induced in Mammalian Skin Following Mancozeb Exposure Using In Vivo and In Vitro Models. OMICS-A JOURNAL OF INTEGRATIVE BIOLOGY 2011; 15:155-67. [DOI: 10.1089/omi.2010.0076] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Shilpa Tyagi
- Proteomics Laboratory, Indian Institute of Toxicology Research, Council of Scientific & Industrial Research (CSIR), Lucknow 226001 (U.P), India
| | - Jasmine George
- Proteomics Laboratory, Indian Institute of Toxicology Research, Council of Scientific & Industrial Research (CSIR), Lucknow 226001 (U.P), India
| | - Richa Singh
- Proteomics Laboratory, Indian Institute of Toxicology Research, Council of Scientific & Industrial Research (CSIR), Lucknow 226001 (U.P), India
| | - Kulpreet Bhui
- Proteomics Laboratory, Indian Institute of Toxicology Research, Council of Scientific & Industrial Research (CSIR), Lucknow 226001 (U.P), India
| | - Yogeshwer Shukla
- Proteomics Laboratory, Indian Institute of Toxicology Research, Council of Scientific & Industrial Research (CSIR), Lucknow 226001 (U.P), India
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Intracellular and Extracellular Effects of S100B in the Cardiovascular Response to Disease. Cardiovasc Psychiatry Neurol 2010; 2010:206073. [PMID: 20672023 PMCID: PMC2909713 DOI: 10.1155/2010/206073] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/01/2010] [Accepted: 05/06/2010] [Indexed: 01/11/2023] Open
Abstract
S100B, a calcium-binding protein of the EF-hand type, exerts both intracellular and extracellular functions. S100B is induced in the myocardium of human subjects and an experimental rat model following myocardial infarction. Forced expression of S100B in neonatal rat myocyte cultures and high level expression of S100B in transgenic mice hearts inhibit cardiac hypertrophy and the associated phenotype but augments myocyte apoptosis following myocardial infarction. By contrast, knocking out S100B, augments hypertrophy, decreases apoptosis and preserves cardiac function following myocardial infarction. Expression of S100B in aortic smooth muscle cells inhibits cell proliferation and the vascular response to adrenergic stimulation. S100B induces apoptosis by an extracellular mechanism via interaction with the receptor for advanced glycation end products and activating ERK1/2 and p53 signaling. The intracellular and extracellular roles of S100B are attractive therapeutic targets for the treatment of both cardiac and vascular diseases.
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Wang XH, Zhang LH, Zhong XY, Xing XF, Liu YQ, Niu ZJ, Peng Y, Du H, Zhang GG, Hu Y, Liu N, Zhu YB, Ge SH, Zhao W, Lu AP, Li JY, Ji JF. S100A6 overexpression is associated with poor prognosis and is epigenetically up-regulated in gastric cancer. THE AMERICAN JOURNAL OF PATHOLOGY 2010; 177:586-97. [PMID: 20581057 DOI: 10.2353/ajpath.2010.091217] [Citation(s) in RCA: 68] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
S100A6 has been implicated in a variety of biological functions as well as tumorigenesis. In this study, we investigated the expression status of S100A6 in relation to the clinicopathological features and prognosis of patients with gastric cancer and further explored a possible association of its expression with epigenetic regulation. S100A6 expression was remarkably increased in 67.5% of gastric cancer tissues as compared with matched noncancerous tissues. Statistical analysis demonstrated a clear correlation between high S100A6 expression and various clinicopathological features, such as depth of wall invasion, positive lymph node involvement, liver metastasis, vascular invasion, and tumor-node metastasis stage (P < 0.05 in all cases), as well as revealed that S100A6 is an independent prognostic predictor (P = 0.026) significantly related to poor prognosis (P = 0.0004). Further exploration found an inverse relationship between S100A6 expression and the methylation status of the seventh and eighth CpG sites in the promoter/first exon and the second to fifth sites in the second exon/second intron. In addition, the level of histone H3 acetylation was found to be significantly higher in S100A6-expressing cancer cells. After 5-azacytidine or trichostatin A treatment, S100A6 expression was clearly increased in S100A6 low-expressing cells. In conclusion, our results suggested that S100A6 plays an important role in the progression of gastric cancer, affecting patient prognosis, and is up-regulated by epigenetic regulation.
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Affiliation(s)
- Xiao-Hong Wang
- Department of Surgery, Beijing Cancer Hospital & Institute, Peking University School of Oncology, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Beijing, China
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Leśniak W, Słomnicki ŁP, Filipek A. S100A6 – New facts and features. Biochem Biophys Res Commun 2009; 390:1087-92. [DOI: 10.1016/j.bbrc.2009.10.150] [Citation(s) in RCA: 109] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2009] [Accepted: 10/29/2009] [Indexed: 01/15/2023]
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Kraus C, Rohde D, Weidenhammer C, Qiu G, Pleger ST, Voelkers M, Boerries M, Remppis A, Katus HA, Most P. S100A1 in cardiovascular health and disease: closing the gap between basic science and clinical therapy. J Mol Cell Cardiol 2009; 47:445-55. [PMID: 19538970 DOI: 10.1016/j.yjmcc.2009.06.003] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/07/2009] [Revised: 06/02/2009] [Accepted: 06/04/2009] [Indexed: 11/26/2022]
Abstract
Calcium (Ca(2+)) signaling plays a major role in a wide range of physiological functions including control and regulation of cardiac and skeletal muscle performance and vascular tone. As all Ca(2+) signals require proteins to relay intracellular Ca(2+) oscillations downstream to different signaling networks, a specific toolkit of Ca(2+)-sensor proteins involving members of the EF-hand S100 Ca(2+) binding protein superfamily maintains the integrity of the Ca(2+) signaling in a variety of cardiac and vascular cells, transmitting the message with great precision and in a temporally and spatially coordinated manner. Indeed, the possibility that S100 proteins might contribute to heart and vascular diseases was first suggested by the discovery of distinctive patterns of S100 expression in healthy and diseased hearts and vasculature from humans and animal heart failure (HF) models. Based on more elaborate genetic studies in mice and strategies to manipulate S100 protein expression in human cardiac, skeletal muscle and vascular cells, it is now apparent that the integrity of distinct S100 protein isoforms in striated muscle and vascular cells such as S100A1, S100A4, S100A6, S100A8/A9 or S100B is a basic requirement for normal cardiovascular and muscular development and function; loss of integrity would naturally lead to profound deregulation of the implicated Ca(2+) signaling systems with detrimental consequences to cardiac, skeletal muscle, and vascular function. The brief debate and discussion here are confined by design to the biological actions and pathophysiological relevance of the EF-hand Ca(2+)-sensor protein S100A1 in the heart, vasculature and skeletal muscle with a particular focus on current translational therapeutic strategies. By virtue of its ability to modulate the activity of numerous key effector proteins that are essentially involved in the control of Ca(2+) and NO homeostasis in cardiac, skeletal muscle and vascular cells, S100A1 has been proven to play a critical role both in cardiac performance, blood pressure regulation and skeletal muscle function. Given that deregulated S100A1 expression in cardiomyocytes and endothelial cells has recently been linked to heart failure and hypertension, it is arguably a molecular target of considerable clinical interest as S100A1 targeted therapies have already been successfully investigated in preclinical translational studies.
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Affiliation(s)
- Carolin Kraus
- Center for Translational Medicine, Laboratory for Cardiac Stem Cell and Gene Therapy Department of Medicine, Thomas Jefferson University, Philadelphia, PA 19107, USA
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