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Klein M, Wermker K, Rashad A, Fischer HJ, Jonigk DD, Hölzle F, Cacchi C. A potential new biomarker in HNSCC: metastasis suppressor protein 1 (MTSS1). Oral Surg Oral Med Oral Pathol Oral Radiol 2024; 137:391-401. [PMID: 38443233 DOI: 10.1016/j.oooo.2023.12.795] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Revised: 11/29/2023] [Accepted: 12/31/2023] [Indexed: 03/07/2024]
Abstract
OBJECTIVE Metastasis suppressor protein 1 (MTSS1) is a prognostic tumour marker in different malignant epithelial tumour entities and previously mainly the MTSS1 expression was analysed. This study evaluated the best analysis method as a prognosis and aggressiveness tumour marker in head and neck squamous cell carcinoma (HNSCC). STUDY DESIGN MTSS1 expression, MTSS1 intensity, interpretation MTSS1 score and MTSS1 edging score were analysed in formalin-fixed paraffin-embedded tissue slices of 60 patients with proven HNSCC and correlated with clinical and pathological outcome parameters. RESULTS A lack of MTSS1 expression showed tumour aggressiveness, but surprisingly, mainly MTSS1 intensity was correlated with a worse patient outcome. There was a significant correlation between higher MTSS1 intensity and an increased risk for lymph node metastasis (P = .027) and a significant increased risk for extracapsular growth (P = .016). Furthermore, disease-specific survival was worse in cases with higher MTSS1 intensity (P = .001). CONCLUSION MTSS1 intensity has a high scientific potential for further studies and could potentially be used as a prognostic marker in diagnostic and therapeutic decision-making.
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Affiliation(s)
- Maurice Klein
- Department of Oral & Maxillofacial Surgery, School of Medicine, University Hospital RWTH Aachen, Aachen, Germany.
| | - Kai Wermker
- Department of Oral and Cranio-Maxillofacial Surgery, Klinikum Osnabrück GmbH, Osnabrück, Germany
| | - Ashkan Rashad
- Department of Oral & Maxillofacial Surgery, School of Medicine, University Hospital RWTH Aachen, Aachen, Germany
| | - Henrike J Fischer
- Institute of Immunology, School of Medicine, University Hospital RWTH Aachen, Aachen, Germany
| | - Danny D Jonigk
- Institute of Pathology, School of Medicine, University Hospital RWTH Aachen, Aachen, Germany; German Center for Lung Research (DZL), BREATH Hanover, Hanover, Germany
| | - Frank Hölzle
- Department of Oral & Maxillofacial Surgery, School of Medicine, University Hospital RWTH Aachen, Aachen, Germany
| | - Claudio Cacchi
- Institute of Pathology, School of Medicine, University Hospital RWTH Aachen, Aachen, Germany
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Pathak C, Vaidya FU, Waghela BN, Jaiswara PK, Gupta VK, Kumar A, Rajendran BK, Ranjan K. Insights of Endocytosis Signaling in Health and Disease. Int J Mol Sci 2023; 24. [PMID: 36769293 DOI: 10.3390/ijms24032971] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Revised: 01/20/2023] [Accepted: 01/31/2023] [Indexed: 02/05/2023] Open
Abstract
Endocytosis in mammalian cells is a fundamental cellular machinery that regulates vital physiological processes, such as the absorption of metabolites, release of neurotransmitters, uptake of hormone cellular defense, and delivery of biomolecules across the plasma membrane. A remarkable characteristic of the endocytic machinery is the sequential assembly of the complex proteins at the plasma membrane, followed by internalization and fusion of various biomolecules to different cellular compartments. In all eukaryotic cells, functional characterization of endocytic pathways is based on dynamics of the protein complex and signal transduction modules. To coordinate the assembly and functions of the numerous parts of the endocytic machinery, the endocytic proteins interact significantly within and between the modules. Clathrin-dependent and -independent endocytosis, caveolar pathway, and receptor mediated endocytosis have been attributed to a greater variety of physiological and pathophysiological roles such as, autophagy, metabolism, cell division, apoptosis, cellular defense, and intestinal permeabilization. Notably, any defect or alteration in the endocytic machinery results in the development of pathological consequences associated with human diseases such as cancer, cardiovascular diseases, neurological diseases, and inflammatory diseases. In this review, an in-depth endeavor has been made to illustrate the process of endocytosis, and associated mechanisms describing pathological manifestation associated with dysregulated endocytosis machinery.
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Armstrong G, Olson MF. Bending over backwards: BAR proteins and the actin cytoskeleton in mammalian receptor-mediated endocytosis. Eur J Cell Biol 2022; 101:151257. [PMID: 35863103 DOI: 10.1016/j.ejcb.2022.151257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Revised: 07/13/2022] [Accepted: 07/14/2022] [Indexed: 11/21/2022] Open
Abstract
The role of the actin cytoskeleton during receptor-mediated endocytosis (RME) has been well characterized in yeast for many years. Only more recently has the interplay between the actin cytoskeleton and RME been extensively explored in mammalian cells. These studies have revealed the central roles of BAR proteins in RME, and have demonstrated significant roles of BAR proteins in linking the actin cytoskeleton to this cellular process. The actin cytoskeleton generates and transmits mechanical force to promote the extension of receptor-bound endocytic vesicles into the cell. Many adaptor proteins link and regulate the actin cytoskeleton at the sites of endocytosis. This review will cover key effectors, adaptors and signalling molecules that help to facilitate the invagination of the cell membrane during receptor-mediated endocytosis, including recent insights gained on the roles of BAR proteins. The final part of this review will explore associations of alterations to genes encoding BAR proteins with cancer.
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Nishimura T, Oyama T, Hu HT, Fujioka T, Hanawa-Suetsugu K, Ikeda K, Yamada S, Kawana H, Saigusa D, Ikeda H, Kurata R, Oono-Yakura K, Kitamata M, Kida K, Hikita T, Mizutani K, Yasuhara K, Mimori-Kiyosue Y, Oneyama C, Kurimoto K, Hosokawa Y, Aoki J, Takai Y, Arita M, Suetsugu S. Filopodium-derived vesicles produced by MIM enhance the migration of recipient cells. Dev Cell 2021; 56:842-859.e8. [PMID: 33756122 DOI: 10.1016/j.devcel.2021.02.029] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Revised: 12/31/2020] [Accepted: 02/23/2021] [Indexed: 12/19/2022]
Abstract
Extracellular vesicles (EVs) are classified as large EVs (l-EVs, or microvesicles) and small EVs (s-EVs, or exosomes). S-EVs are thought to be generated from endosomes through a process that mainly depends on the ESCRT protein complex, including ALG-2 interacting protein X (ALIX). However, the mechanisms of l-EV generation from the plasma membrane have not been identified. Membrane curvatures are generated by the bin-amphiphysin-rvs (BAR) family proteins, among which the inverse BAR (I-BAR) proteins are involved in filopodial protrusions. Here, we show that the I-BAR proteins, including missing in metastasis (MIM), generate l-EVs by scission of filopodia. Interestingly, MIM-containing l-EV production was promoted by in vivo equivalent external forces and by the suppression of ALIX, suggesting an alternative mechanism of vesicle formation to s-EVs. The MIM-dependent l-EVs contained lysophospholipids and proteins, including IRS4 and Rac1, which stimulated the migration of recipient cells through lamellipodia formation. Thus, these filopodia-dependent l-EVs, which we named as filopodia-derived vesicles (FDVs), modify cellular behavior.
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Affiliation(s)
- Tamako Nishimura
- Division of Biological Science, Nara Institute of Science and Technology, Ikoma 630-0192, Japan
| | - Takuya Oyama
- Division of Biological Science, Nara Institute of Science and Technology, Ikoma 630-0192, Japan
| | - Hooi Ting Hu
- Division of Biological Science, Nara Institute of Science and Technology, Ikoma 630-0192, Japan
| | - Toshifumi Fujioka
- Division of Biological Science, Nara Institute of Science and Technology, Ikoma 630-0192, Japan
| | - Kyoko Hanawa-Suetsugu
- Division of Biological Science, Nara Institute of Science and Technology, Ikoma 630-0192, Japan
| | - Kazutaka Ikeda
- Laboratory for Metabolomics, RIKEN Center for Integrative Medical Sciences, Yokohama 230-0045, Japan; Cellular and Molecular Epigenetics Laboratory, Graduate School of Medical Life Science, Yokohama City University, Yokohama 230-0045, Japan; Kazusa DNA Research Institute, 2-6-7 Kazusa, kamatari, Kisarazu, Chiba 292-0818, Japan
| | - Sohei Yamada
- Division of Materials Science, Nara Institute of Science and Technology, Ikoma 630-0192, Japan
| | - Hiroki Kawana
- Laboratory of Health Chemistry, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Bunkyo, Tokyo 113-0033, Japan
| | - Daisuke Saigusa
- Tohoku University Tohoku Medical Megabank Organization, 2-1, Seiryo-machi, Aoba-ku, Sendai 980-8573, Japan
| | - Hiroki Ikeda
- Department of Embryology, Nara Medical University, Kashihara 634-0813, Nara, Japan
| | - Rie Kurata
- Division of Biological Science, Nara Institute of Science and Technology, Ikoma 630-0192, Japan
| | - Kayoko Oono-Yakura
- Division of Biological Science, Nara Institute of Science and Technology, Ikoma 630-0192, Japan
| | - Manabu Kitamata
- Division of Biological Science, Nara Institute of Science and Technology, Ikoma 630-0192, Japan
| | - Kazuki Kida
- Division of Biological Science, Nara Institute of Science and Technology, Ikoma 630-0192, Japan
| | - Tomoya Hikita
- Division of Cancer Cell Regulation, Aichi Cancer Center Research Institute, 1-1 Kanokoden, Chikusa-ku, Nagoya 464-8681, Japan
| | - Kiyohito Mizutani
- Department of Biochemistry and Molecular Biology, Kobe University Graduate School of Medicine, Kobe 650-0047, Japan
| | - Kazuma Yasuhara
- Division of Materials Science, Nara Institute of Science and Technology, Ikoma 630-0192, Japan
| | - Yuko Mimori-Kiyosue
- Laboratory for Molecular and Cellular Dynamics, RIKEN Center for Biosystems Dynamics Research, Minatojima-minaminachi, Chuo-ku, Kobe, Hyogo 650-0047, Japan
| | - Chitose Oneyama
- Division of Cancer Cell Regulation, Aichi Cancer Center Research Institute, 1-1 Kanokoden, Chikusa-ku, Nagoya 464-8681, Japan
| | - Kazuki Kurimoto
- Department of Embryology, Nara Medical University, Kashihara 634-0813, Nara, Japan
| | - Yoichiroh Hosokawa
- Division of Materials Science, Nara Institute of Science and Technology, Ikoma 630-0192, Japan
| | - Junken Aoki
- Laboratory of Health Chemistry, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Bunkyo, Tokyo 113-0033, Japan
| | - Yoshimi Takai
- Department of Biochemistry and Molecular Biology, Kobe University Graduate School of Medicine, Kobe 650-0047, Japan
| | - Makoto Arita
- Laboratory for Metabolomics, RIKEN Center for Integrative Medical Sciences, Yokohama 230-0045, Japan; Cellular and Molecular Epigenetics Laboratory, Graduate School of Medical Life Science, Yokohama City University, Yokohama 230-0045, Japan; Division of Physiological Chemistry and Metabolism, Graduate School of Pharmaceutical Sciences, Keio University, Tokyo 105-0011, Japan
| | - Shiro Suetsugu
- Division of Biological Science, Nara Institute of Science and Technology, Ikoma 630-0192, Japan; Data Science Center, Nara Institute of Science and Technology, Ikoma 630-0192, Japan.
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Liang L, Liang X, Jiang P, Zhou L, Zhong L, Wang M, Lin S, Guo Z, Yu J, Yang C, Chen Y, Zhuo C, Chen P, Wang Y. Metastasis suppressor 1 interacts with α-actinin 4 to affect its localization and regulate formation of membrane ruffling. Cytoskeleton (Hoboken) 2021; 78:337-348. [PMID: 34435464 DOI: 10.1002/cm.21686] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Revised: 08/10/2021] [Accepted: 08/19/2021] [Indexed: 01/21/2023]
Abstract
Membrane ruffling plays an important role in the directed cell migration and escape of tumor cells from the monolayer. Metastasis suppressor 1 (MTSS1), also known as missing in metastasis, has been implicated in cell morphology, motility, metastasis, and development. Here, the dynamic interaction proteins associated with MTSS1 and involved in membrane ruffling were determined by cross-linking and mass spectrometry analysis. We identified α-actinin 4 (ACTN4) as an interacting protein and confirmed a direct interaction between MTSS1 and ACTN4. Moreover, co-expression of MTSS1 in fibroblasts recruited cytoplasmic ACTN4 to the cell periphery, at which point ruffling became thick and rigid. In MCF-7 cells, MTSS1 knockdown did not show an obvious effect on the cell shape or the distribution of endogenous ACTN4; however, ACTN4 overexpression transformed cell morphology from an epidermal- to a fibroblast-like shape, and further MTSS1 depletion significantly increased the ratio of fibroblast cells exhibiting prominent ruffling. Furthermore, biochemical data suggested that MTSS1 cross-linking with ACTN4 induced the formation of actin fiber bundles into more organized structures in vitro. These data indicated that MTSS1 might recruit cytoplasmic ACTN4 to the cell periphery and regulate cytoskeleton dynamics to restrict its performance in membrane ruffling.
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Affiliation(s)
- Lijun Liang
- The Key Laboratory of Protein Chemistry and Developmental Biology of Ministry of Education, College of Life Sciences, Hunan Normal University, Changsha, China
| | - Xiaoping Liang
- The Key Laboratory of Protein Chemistry and Developmental Biology of Ministry of Education, College of Life Sciences, Hunan Normal University, Changsha, China
| | - Peng Jiang
- The Key Laboratory of Protein Chemistry and Developmental Biology of Ministry of Education, College of Life Sciences, Hunan Normal University, Changsha, China
| | - Lu Zhou
- The Key Laboratory of Protein Chemistry and Developmental Biology of Ministry of Education, College of Life Sciences, Hunan Normal University, Changsha, China
| | - Luanluan Zhong
- The Key Laboratory of Protein Chemistry and Developmental Biology of Ministry of Education, College of Life Sciences, Hunan Normal University, Changsha, China
| | - Mei Wang
- The Key Laboratory of Protein Chemistry and Developmental Biology of Ministry of Education, College of Life Sciences, Hunan Normal University, Changsha, China
| | - Shuyun Lin
- The Key Laboratory of Protein Chemistry and Developmental Biology of Ministry of Education, College of Life Sciences, Hunan Normal University, Changsha, China
| | - Zhen Guo
- The Key Laboratory of Protein Chemistry and Developmental Biology of Ministry of Education, College of Life Sciences, Hunan Normal University, Changsha, China
| | - Juan Yu
- The Key Laboratory of Protein Chemistry and Developmental Biology of Ministry of Education, College of Life Sciences, Hunan Normal University, Changsha, China
| | - Changcheng Yang
- The Key Laboratory of Protein Chemistry and Developmental Biology of Ministry of Education, College of Life Sciences, Hunan Normal University, Changsha, China
| | - Yu Chen
- The Key Laboratory of Protein Chemistry and Developmental Biology of Ministry of Education, College of Life Sciences, Hunan Normal University, Changsha, China
| | - Chengjie Zhuo
- The Key Laboratory of Protein Chemistry and Developmental Biology of Ministry of Education, College of Life Sciences, Hunan Normal University, Changsha, China
| | - Ping Chen
- The Key Laboratory of Protein Chemistry and Developmental Biology of Ministry of Education, College of Life Sciences, Hunan Normal University, Changsha, China
| | - Ying Wang
- The Key Laboratory of Protein Chemistry and Developmental Biology of Ministry of Education, College of Life Sciences, Hunan Normal University, Changsha, China
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6
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Chen L, Chen Q, Wu Y, Zhu M, Hu J, Zhuang Z. MTSS1 inhibits colorectal cancer metastasis by regulating the CXCR4/CXCL12 signaling axis. Int J Mol Med 2021; 47:65. [PMID: 33649808 PMCID: PMC7952249 DOI: 10.3892/ijmm.2021.4898] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Accepted: 02/04/2021] [Indexed: 01/06/2023] Open
Abstract
The liver is the most common site of metastasis for colorectal cancer (CRC). Metastasis suppressor 1 (MTSS1), a potential tumor suppressor gene associated with tumor metastasis, has been reported to play an important role in cancer development. The present study aimed to investigate the effects and underlying mechanisms of MTSS1 on the biological behavior of CRC cells both in vitro and in vivo. A CRC mouse model with a high liver metastatic potential was established by injecting mice with SW1116 cells, and the association between MTSS1 expression levels and the metastatic potential of forming liver metastasis lesions was subsequently analyzed. MTSS1 gain‑ and loss‑of‑function experiments were performed by transfecting the CRC cell lines, SW1116 and DLD‑1, with Plvx‑IRES‑ZsGreen1‑MTSS1 plasmid and short hairpin RNA, respectively. Cell proliferation, migration, invasion and cell cycle distribution were analyzed by MTT, Transwell and flow cytometric assays, respectively. To further determine the underlying mechanisms of MTSS1 in CRC, the expression levels of cell surface chemokine C‑X‑C receptor 4 (CXCR4) and its downstream signaling factors, Rac and cell division cycle 42 (CDC42), were analyzed with or without C‑X‑C motif chemokine ligand 12 (CXCL12) stimulation. The results revealed that as the CRC metastatic potential increased, the expression levels of MTSS1 decreased. The overexpression of MTSS1 exerted an inhibitory effect on cell proliferation, migration and invasion, while the knockdown of MTSS1 exerted the opposite effects in vitro. Flow cytometric analysis and western blot analysis demonstrated that MTSS1 negatively regulated the expression levels of cell surface CXCR4 and its downstream signaling pathway activation. On the whole, the results of the present study indicate that MTSS1 may play an important negative role in CRC metastasis and the underlying mechanisms may involve the downregulation of the CXCR4/CXCL12 signaling axis.
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Affiliation(s)
- Lei Chen
- Department of Oncology, The Second Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215004, P.R. China
| | - Qiang Chen
- Department of General Surgery, The Second Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215004, P.R. China
| | - Yongyou Wu
- Department of General Surgery, The Second Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215004, P.R. China
| | - Minggao Zhu
- Department of Oncology, The Second Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215004, P.R. China
| | - Jia Hu
- Department of Genetics and Bioinformatics, College of Basic Medicine and Biological Sciences of Soochow University, Suzhou, Jiangsu 215004, P.R. China
| | - Zhixiang Zhuang
- Department of Oncology, The Second Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215004, P.R. China
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Abstract
A potentially important aspect in the regulation of tumour metastasis is endocytosis. This process consists of internalisation of cell-surface receptors via pinocytosis, phagocytosis or receptor-mediated endocytosis, the latter of which includes clathrin-, caveolae- and non-clathrin or caveolae-mediated mechanisms. Endocytosis then progresses through several intracellular compartments for sorting and routing of cargo, ending in lysosomal degradation, recycling back to the cell surface or secretion. Multiple endocytic proteins are dysregulated in cancer and regulate tumour metastasis, particularly migration and invasion. Importantly, four metastasis suppressor genes function in part by regulating endocytosis, namely, the NME, KAI, MTSS1 and KISS1 pathways. Data on metastasis suppressors identify a new point of dysregulation operative in tumour metastasis, alterations in signalling through endocytosis. This review will focus on the multicomponent process of endocytosis affecting different steps of metastasis and how metastatic-suppressor genes use endocytosis to suppress metastasis.
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Affiliation(s)
- Imran Khan
- Women's Malignancies Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD, 20892, USA.
| | - Patricia S Steeg
- Women's Malignancies Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD, 20892, USA
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Chen JX, Wang YP, Zhang X, Li GX, Zheng K, Duan CZ. lncRNA Mtss1 promotes inflammatory responses and secondary brain injury after intracerebral hemorrhage by targeting miR-709 in mice. Brain Res Bull 2020; 162:20-29. [PMID: 32442560 DOI: 10.1016/j.brainresbull.2020.04.017] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2020] [Revised: 04/01/2020] [Accepted: 04/27/2020] [Indexed: 01/17/2023]
Abstract
Secondary brain injuries following intracerebral hemorrhage (ICH) are mediated by inflammatory pathway activation. The present study aimed to characterize long noncoding RNAs (lncRNAs) that are differentially expressed in cerebral tissues during ICH pathogenesis and to investigate their pathogenic functions. An ICH mouse model established by collagenase injection was used to obtain differentially expressed lncRNAs for deep sequencing. A cellular inflammation model was established by treating mouse microglia with lipopolysaccharide. Expression of lncRNA and miRNA was assessed by quantitative RT-PCR, and protein abundance was measured by western blot. Cytokine levels in mouse serum and cell culture supernatants were analyzed using enzyme-linked immunosorbent assay. Cerebral injury was evaluated by hematoxylin-eosin and Nissl staining, the ratio of brain dry weight/brain wet weight, and neurobehavior scoring. Ionized calcium-binding adaptor molecule 1 (IBA1) expression in the brain sections was assessed using immunohistochemistry. A total of 3681 lncRNAs were differentially expressed in the brain tissue of the ICH mice group compared with the Sham group. Of these, lncRNA metastasis suppressor-1 (Mtss1) expression was increased. Mtss1 knockdown by siRNA in the cellular model strongly suppressed TIR-domain-containing adapter-inducing interferon-β (TRIF) expression, P65 phosphorylation, and tumor necrosis factor (TNF)-α and interleukin (IL)-1β secretion. Mtss1 knockdown in ICH mice inhibited secondary brain injury and decreased IBA1, TNF-α, and IL-1β. Mtss1 was predicted to bind miR-709, and Mtss1 knockdown elevated miR-709 expression in the cellular inflammation model and ICH mice. High expression of Mtss1 promoted inflammatory brain injuries after ICH by enhancing inflammatory cytokine secretion and targeting miR-709 expression.
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Affiliation(s)
- Jia-Xiang Chen
- Department of Neurosurgery, Zhujiang Hospital, Southern Medical University, Guangzhou, China; The National Key Clinical Specialty, Engineering Technology Research Center of Education Ministry of China, Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, Guangzhou, China; Department of Neurosurgery, Guangzhou Red Cross Hospital, The Fourth Affiliated Hospital of Jinan University, Guangzhou, China
| | - Yi-Ping Wang
- Department of Neurosurgery, The Fifth Affiliated Hospital of Sun Yat-sen University, Guangdong, China
| | - Xin Zhang
- Department of Neurosurgery, Zhujiang Hospital, Southern Medical University, Guangzhou, China; The National Key Clinical Specialty, Engineering Technology Research Center of Education Ministry of China, Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, Guangzhou, China
| | - Guo-Xiong Li
- Department of Neurosurgery, Zhujiang Hospital, Southern Medical University, Guangzhou, China; The National Key Clinical Specialty, Engineering Technology Research Center of Education Ministry of China, Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, Guangzhou, China
| | - Kuang Zheng
- Department of Neurosurgery, Zhujiang Hospital, Southern Medical University, Guangzhou, China; The National Key Clinical Specialty, Engineering Technology Research Center of Education Ministry of China, Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, Guangzhou, China
| | - Chuan-Zhi Duan
- Department of Neurosurgery, Zhujiang Hospital, Southern Medical University, Guangzhou, China; The National Key Clinical Specialty, Engineering Technology Research Center of Education Ministry of China, Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, Guangzhou, China.
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Petrov P, Sarapulov AV, Eöry L, Scielzo C, Scarfò L, Smith J, Burt DW, Mattila PK. Computational analysis of the evolutionarily conserved Missing In Metastasis/Metastasis Suppressor 1 gene predicts novel interactions, regulatory regions and transcriptional control. Sci Rep 2019; 9:4155. [PMID: 30858428 PMCID: PMC6411742 DOI: 10.1038/s41598-019-40697-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2018] [Accepted: 02/21/2019] [Indexed: 12/25/2022] Open
Abstract
Missing in Metastasis (MIM), or Metastasis Suppressor 1 (MTSS1), is a highly conserved protein, which links the plasma membrane to the actin cytoskeleton. MIM has been implicated in various cancers, however, its modes of action remain largely enigmatic. Here, we performed an extensive in silico characterisation of MIM to gain better understanding of its function. We detected previously unappreciated functional motifs including adaptor protein (AP) complex interaction site and a C-helix, pointing to a role in endocytosis and regulation of actin dynamics, respectively. We also identified new functional regions, characterised with phosphorylation sites or distinct hydrophilic properties. Strong negative selection during evolution, yielding high conservation of MIM, has been combined with positive selection at key sites. Interestingly, our analysis of intra-molecular co-evolution revealed potential regulatory hotspots that coincided with reduced potentially pathogenic polymorphisms. We explored databases for the mutations and expression levels of MIM in cancer. Experimentally, we focused on chronic lymphocytic leukaemia (CLL), where MIM showed high overall expression, however, downregulation on poor prognosis samples. Finally, we propose strong conservation of MTSS1 also on the transcriptional level and predict novel transcriptional regulators. Our data highlight important targets for future studies on the role of MIM in different tissues and cancers.
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Affiliation(s)
- Petar Petrov
- Institute of Biomedicine, and MediCity Research Laboratories, University of Turku, Tykistökatu 6A, 20520, Turku, Finland.
| | - Alexey V Sarapulov
- Institute of Biomedicine, and MediCity Research Laboratories, University of Turku, Tykistökatu 6A, 20520, Turku, Finland
| | - Lel Eöry
- Division of Genetics and Genomics, The Roslin Institute and R(D)SVS, University of Edinburgh, Roslin, Easter Bush campus, Midlothian, EH25 9RG, United Kingdom
| | - Cristina Scielzo
- Unit of B Cell Neoplasia, Division of Molecular Oncology, IRCCS, San Raffaele Scientific Institute, Milano, Italy.,Università Vita-Salute San Raffaele, Milan, Italy
| | - Lydia Scarfò
- Unit of B Cell Neoplasia, Division of Molecular Oncology, IRCCS, San Raffaele Scientific Institute, Milano, Italy.,Università Vita-Salute San Raffaele, Milan, Italy.,Strategic Research Program on CLL, Division of Experimental Oncology, IRCCS, San Raffaele Scientific Institute, Milano, Italy
| | - Jacqueline Smith
- Division of Genetics and Genomics, The Roslin Institute and R(D)SVS, University of Edinburgh, Roslin, Easter Bush campus, Midlothian, EH25 9RG, United Kingdom
| | - David W Burt
- University of Queensland, St. Lucia, QLD, 4072, Australia
| | - Pieta K Mattila
- Institute of Biomedicine, and MediCity Research Laboratories, University of Turku, Tykistökatu 6A, 20520, Turku, Finland.
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Pavón MA, Arroyo-Solera I, León X, Téllez-Gabriel M, Virós D, Gallardo A, Céspedes MV, Casanova I, Lopez-Pousa A, Barnadas A, Quer M, Mangues R. The combined use of EFS, GPX2, and SPRR1A expression could distinguish favorable from poor clinical outcome among epithelial-like head and neck carcinoma subtypes. Head Neck 2019; 41:1830-1845. [PMID: 30652380 DOI: 10.1002/hed.25623] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2017] [Revised: 11/28/2018] [Accepted: 12/12/2018] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND We aimed at identifying molecular markers predictive of clinical outcome in patients with head and neck cancer based on the expression profile of cells showing epithelial-like (EL) or mesenchymal-like (ML) phenotypes. MATERIALS AND METHODS We analyzed the association between EL and ML cells and migration, drug resistance, or tumor growth. The differential gene expression profile between cell types was used to build a model to stratify patients according to survival. RESULTS EL cells were sensitive to cisplatin and cetuximab, showed low migration, and generated squamous differentiated tumors in mouse. A differential 93-gene expression signature between ML and EL cells was used to build a three-gene (EFS, GPX2, and SPRR1A) survival model by analyzing the RNA-seq data of the TCGA-HNSC project. Its prognostic value was confirmed in two independent cohorts. CONCLUSION EFS, GPX2, and SPRR1A are prognostic markers able to distinguish clinical outcome among subtypes sharing an EL phenotype.
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Affiliation(s)
- Miguel Angel Pavón
- Infections and Cancer Laboratory/Cancer Epidemiology Research Program. Catalan Institute of Oncology (ICO) and Bellvitge Institute of Biomedical Research (IDIBELL), Barcelona, Spain.,Centro de Investigación Biomédica en Red en Cáncer (CIBER-ONC), Madrid, Spain
| | - Irene Arroyo-Solera
- Oncogenesis and Antitumor Drug Group, lnstitut d'Investigacions Biomèdiques Sant Pau (IIB-Sant Pau), Barcelona, Spain.,Centro de Investigación Biomédica en Red en Bioingeniería, Biomateriales y Nanomecidicina (CIBER-BBN), Madrid, Spain
| | - Xavier León
- Centro de Investigación Biomédica en Red en Bioingeniería, Biomateriales y Nanomecidicina (CIBER-BBN), Madrid, Spain.,Department of Otorrinolaryngology, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain
| | - Marta Téllez-Gabriel
- Laboratorio Hematología Oncológica y de Transplantes, Institut Investigacions Biomèdiques (IBB) Sant Pau, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain
| | - David Virós
- Department of Otorrinolaryngology, Hospital Germans Tries y Pujol (Can Ruti), Barcelona, Spain
| | - Alberto Gallardo
- Department of Pathology, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain
| | - Maria Virtudes Céspedes
- Oncogenesis and Antitumor Drug Group, lnstitut d'Investigacions Biomèdiques Sant Pau (IIB-Sant Pau), Barcelona, Spain.,Centro de Investigación Biomédica en Red en Bioingeniería, Biomateriales y Nanomecidicina (CIBER-BBN), Madrid, Spain
| | - Isolda Casanova
- Oncogenesis and Antitumor Drug Group, lnstitut d'Investigacions Biomèdiques Sant Pau (IIB-Sant Pau), Barcelona, Spain.,Centro de Investigación Biomédica en Red en Bioingeniería, Biomateriales y Nanomecidicina (CIBER-BBN), Madrid, Spain
| | - Antonio Lopez-Pousa
- Centro de Investigación Biomédica en Red en Bioingeniería, Biomateriales y Nanomecidicina (CIBER-BBN), Madrid, Spain.,Department of Medical Oncology, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain
| | - Agustí Barnadas
- Department of Medical Oncology, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain
| | - Miquel Quer
- Department of Otorrinolaryngology, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain
| | - Ramón Mangues
- Oncogenesis and Antitumor Drug Group, lnstitut d'Investigacions Biomèdiques Sant Pau (IIB-Sant Pau), Barcelona, Spain.,Centro de Investigación Biomédica en Red en Bioingeniería, Biomateriales y Nanomecidicina (CIBER-BBN), Madrid, Spain
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11
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Brown AS, Meera P, Altindag B, Chopra R, Perkins EM, Paul S, Scoles DR, Tarapore E, Magri J, Huang H, Jackson M, Shakkottai VG, Otis TS, Pulst SM, Atwood SX, Oro AE. MTSS1/Src family kinase dysregulation underlies multiple inherited ataxias. Proc Natl Acad Sci U S A 2018; 115:E12407-16. [PMID: 30530649 DOI: 10.1073/pnas.1816177115] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
The genetically heterogeneous spinocerebellar ataxias (SCAs) are caused by Purkinje neuron dysfunction and degeneration, but their underlying pathological mechanisms remain elusive. The Src family of nonreceptor tyrosine kinases (SFK) are essential for nervous system homeostasis and are increasingly implicated in degenerative disease. Here we reveal that the SFK suppressor Missing-in-metastasis (MTSS1) is an ataxia locus that links multiple SCAs. MTSS1 loss results in increased SFK activity, reduced Purkinje neuron arborization, and low basal firing rates, followed by cell death. Surprisingly, mouse models for SCA1, SCA2, and SCA5 show elevated SFK activity, with SCA1 and SCA2 displaying dramatically reduced MTSS1 protein levels through reduced gene expression and protein translation, respectively. Treatment of each SCA model with a clinically approved Src inhibitor corrects Purkinje neuron basal firing and delays ataxia progression in MTSS1 mutants. Our results identify a common SCA therapeutic target and demonstrate a key role for MTSS1/SFK in Purkinje neuron survival and ataxia progression.
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12
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Principe S, Mejia-Guerrero S, Ignatchenko V, Sinha A, Ignatchenko A, Shi W, Pereira K, Su S, Huang SH, O'Sullivan B, Xu W, Goldstein DP, Weinreb I, Ailles L, Liu FF, Kislinger T. Proteomic Analysis of Cancer-Associated Fibroblasts Reveals a Paracrine Role for MFAP5 in Human Oral Tongue Squamous Cell Carcinoma. J Proteome Res 2018; 17:2045-2059. [PMID: 29681158 DOI: 10.1021/acs.jproteome.7b00925] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Bidirectional communication between cells and their microenvironment is crucial for both normal tissue homeostasis and tumor growth. During the development of oral tongue squamous cell carcinoma (OTSCC), cancer-associated fibroblasts (CAFs) create a supporting niche by maintaining a bidirectional crosstalk with cancer cells, mediated by classically secreted factors and various nanometer-sized vesicles, termed as extracellular vesicles (EVs). To better understand the role of CAFs within the tumor stroma and elucidate the mechanism by which secreted proteins contribute to OTSCC progression, we isolated and characterized patient-derived CAFs from resected tumors with matched adjacent tissue fibroblasts (AFs). Our strategy employed shotgun proteomics to comprehensively characterize the proteomes of these matched fibroblast populations. Our goals were to identify CAF-secreted factors (EVs and soluble) that can functionally modulate OTSCC cells in vitro and to identify novel CAF-associated biomarkers. Comprehensive proteomic analysis identified 4247 proteins, the most detailed description of a pro-tumorigenic stroma to date. We demonstrated functional effects of CAF secretomes (EVs and conditioned media) on OTSCC cell growth and migration. Comparative proteomics identified novel proteins associated with a CAF-like state. Specifically, MFAP5, a protein component of extracellular microfibrils, was enriched in CAF secretomes. Using in vitro assays, we demonstrated that MFAP5 activated OTSCC cell growth and migration via activation of MAPK and AKT pathways. Using a tissue microarray of richly annotated primary human OTSCCs, we demonstrated an association of MFAP5 expression with patient survival. In summary, our proteomics data of patient-derived stromal fibroblasts provide a useful resource for future mechanistic and biomarker studies.
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Affiliation(s)
- Simona Principe
- Princess Margaret Cancer Centre , University Health Network , Toronto , Ontario M5G 1L7 , Canada
| | - Salvador Mejia-Guerrero
- Princess Margaret Cancer Centre , University Health Network , Toronto , Ontario M5G 1L7 , Canada
| | - Vladimir Ignatchenko
- Princess Margaret Cancer Centre , University Health Network , Toronto , Ontario M5G 1L7 , Canada
| | - Ankit Sinha
- Department of Medical Biophysics , University of Toronto , Toronto , Ontario M5G 1L7 , Canada
| | - Alexandr Ignatchenko
- Princess Margaret Cancer Centre , University Health Network , Toronto , Ontario M5G 1L7 , Canada
| | - Willa Shi
- Department of Radiation Oncology , University of Toronto , Toronto , Ontario M5T 1P5 , Canada
| | - Keira Pereira
- Department of Medical Biophysics , University of Toronto , Toronto , Ontario M5G 1L7 , Canada
| | - Susie Su
- Princess Margaret Cancer Centre , University Health Network , Toronto , Ontario M5G 1L7 , Canada.,Department of Biostatistics , Princess Margaret Cancer Centre , Toronto , Ontario M5G 1L7 , Canada
| | - Shao Hui Huang
- Department of Radiation Oncology , University of Toronto , Toronto , Ontario M5T 1P5 , Canada
| | - Brian O'Sullivan
- Department of Radiation Oncology , University of Toronto , Toronto , Ontario M5T 1P5 , Canada
| | - Wei Xu
- Princess Margaret Cancer Centre , University Health Network , Toronto , Ontario M5G 1L7 , Canada.,Department of Biostatistics , Princess Margaret Cancer Centre , Toronto , Ontario M5G 1L7 , Canada
| | - David P Goldstein
- Princess Margaret Cancer Centre , University Health Network , Toronto , Ontario M5G 1L7 , Canada.,Department of Otolaryngology-Head and Neck Surgery, Princess Margaret Cancer Centre , University Health Network , Toronto , Ontario M5G 1L7 , Canada.,Department of Otolaryngology , University of Toronto , Toronto , Ontario M5G 1L7 , Canada
| | - Ilan Weinreb
- Princess Margaret Cancer Centre , University Health Network , Toronto , Ontario M5G 1L7 , Canada.,Department of Pathology , University of Toronto , Toronto , Ontario M5S 1A8 , Canada
| | - Laurie Ailles
- Princess Margaret Cancer Centre , University Health Network , Toronto , Ontario M5G 1L7 , Canada.,Department of Medical Biophysics , University of Toronto , Toronto , Ontario M5G 1L7 , Canada
| | - Fei-Fei Liu
- Princess Margaret Cancer Centre , University Health Network , Toronto , Ontario M5G 1L7 , Canada.,Department of Radiation Oncology , University of Toronto , Toronto , Ontario M5T 1P5 , Canada.,Department of Medical Biophysics , University of Toronto , Toronto , Ontario M5G 1L7 , Canada
| | - Thomas Kislinger
- Princess Margaret Cancer Centre , University Health Network , Toronto , Ontario M5G 1L7 , Canada.,Department of Medical Biophysics , University of Toronto , Toronto , Ontario M5G 1L7 , Canada
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13
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Bracalente C, Ibañez IL, Berenstein A, Notcovich C, Cerda MB, Klamt F, Chernomoretz A, Durán H. Reprogramming human A375 amelanotic melanoma cells by catalase overexpression: Upregulation of antioxidant genes correlates with regression of melanoma malignancy and with malignant progression when downregulated. Oncotarget 2018; 7:41154-41171. [PMID: 27206673 PMCID: PMC5173049 DOI: 10.18632/oncotarget.9273] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2015] [Accepted: 04/02/2016] [Indexed: 12/18/2022] Open
Abstract
Reactive oxygen species (ROS) are implicated in tumor transformation. The antioxidant system (AOS) protects cells from ROS damage. However, it is also hijacked by cancers cells to proliferate within the tumor. Thus, identifying proteins altered by redox imbalance in cancer cells is an attractive prognostic and therapeutic tool. Gene expression microarrays in A375 melanoma cells with different ROS levels after overexpressing catalase were performed. Dissimilar phenotypes by differential compensation to hydrogen peroxide scavenging were generated. The melanotic A375-A7 (A7) upregulated TYRP1, CNTN1 and UCHL1 promoting melanogenesis. The metastatic A375-G10 (G10) downregulated MTSS1 and TIAM1, proteins absent in metastasis. Moreover, differential coexpression of AOS genes (EPHX2, GSTM3, MGST1, MSRA, TXNRD3, MGST3 and GSR) was found in A7 and G10. Their increase in A7 improved its AOS ability and therefore, oxidative stress response, resembling less aggressive tumor cells. Meanwhile, their decrease in G10 revealed a disruption in the AOS and therefore, enhanced its metastatic capacity. These gene signatures, not only bring new insights into the physiopathology of melanoma, but also could be relevant in clinical prognostic to classify between non aggressive and metastatic melanomas.
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Affiliation(s)
- Candelaria Bracalente
- Departamento de Micro y Nanotecnología, Comisión Nacional de Energía Atómica, San Martín, Buenos Aires, Argentina.,Consejo Nacional de Investigaciones Científicas y Tecnológicas, Buenos Aires, Argentina
| | - Irene L Ibañez
- Departamento de Micro y Nanotecnología, Comisión Nacional de Energía Atómica, San Martín, Buenos Aires, Argentina.,Consejo Nacional de Investigaciones Científicas y Tecnológicas, Buenos Aires, Argentina
| | - Ariel Berenstein
- Fundación Instituto Leloir and Departamento de Física, Facultad Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Cintia Notcovich
- Departamento de Micro y Nanotecnología, Comisión Nacional de Energía Atómica, San Martín, Buenos Aires, Argentina
| | - María B Cerda
- Departamento de Micro y Nanotecnología, Comisión Nacional de Energía Atómica, San Martín, Buenos Aires, Argentina
| | - Fabio Klamt
- Laboratório de Bioquímica Celular, Departamento de Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brasil
| | - Ariel Chernomoretz
- Fundación Instituto Leloir and Departamento de Física, Facultad Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Hebe Durán
- Departamento de Micro y Nanotecnología, Comisión Nacional de Energía Atómica, San Martín, Buenos Aires, Argentina.,Consejo Nacional de Investigaciones Científicas y Tecnológicas, Buenos Aires, Argentina.,Escuela de Ciencia y Tecnología, Universidad Nacional de San Martín, San Martín, Buenos Aires, Argentina
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14
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Huang XY, Huang ZL, Niu T, Wu ZQ, Xu B, Xu YH, Huang XY, Zheng Q, Zhou J, Chen Z, Tang ZY. Missing-in-metastasis B (MIM-B) combined with caveolin-1 promotes metastasis of hepatocellular carcinoma. Oncotarget 2017; 8:95450-95465. [PMID: 29221140 PMCID: PMC5707034 DOI: 10.18632/oncotarget.20735] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2016] [Accepted: 08/04/2017] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND Increasing amounts of evidence indicate that Missing in metastasis B (MIM-B) promotes cancer metastasis. Here, we sought to better understand the mechanism through which MIM-B promotes tumor metastasis in hepatocellular carcinoma (HCC). METHODS We performed confocal microscopy analysis to determine the distributions of MIM-B and caveolin-1 and conducted co-immunoprecipitation assays to detect the interactions between MIM-B and caveolin-1 in vitro. We performed transwell assays to analyze the invasive ability of HCC cells. Changes in the expression levels of key genes and some molecular makers were detected by immunohistochemistry and western blotting in HCC tissue samples. RESULTS We found that MIM-B co-localizes with caveolin-1 and demonstrated that MIM-B and caveolin-1 interact in vitro. Repressing MIM-B and caveolin-1 expression inhibited the epidermal growth factor receptor signaling pathway. We overexpressed MIM-B and caveolin-1 in Hep3B cells, which enhanced Hep3B cell invasiveness. Furthermore, MHCC97H cell invasiveness was significantly decreased in cells in which MIM-B and caveolin-1 expression was inhibited. Additionally, we found that MIM-B and caveolin-1 were expressed at higher levels in HCC tissues than in paired normal tissues. Moreover, HCC patients with MIM-B and caveolin-1 up-regulation experienced significantly worse outcomes than controls (P < 0.001), and HCC patients with high MIM-B and caveolin-1 expression levels often developed pulmonary metastasis (P < 0.001). CONCLUSIONS MIM-B combined with caveolin-1 promotes metastasis of HCC, and elevated MIM-B and caveolin-1 expression levels are associated with a poor prognosis in HCC patients; therefore, MIM-B and caveolin-1 may represent novel targets for the diagnosis and treatment of HCC.
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Affiliation(s)
- Xiu-Yan Huang
- Department of General Surgery, Shanghai Jiaotong University Affiliated Sixth People's Hospital, Shanghai, P.R. China
| | - Zi-Li Huang
- Department of Radiology, Xuhui Central Hospital, Shanghai, P.R. China
| | - Tao Niu
- Department of General Surgery, People's Hospital of Menghai County, Yunnan Province, P.R. China
| | - Zhen-Qian Wu
- Department of General Surgery, Shanghai Jiaotong University Affiliated Sixth People's Hospital, Shanghai, P.R. China
| | - Bin Xu
- Department of General Surgery, The Tenth People's Hospital of Tongji University, Shanghai, P.R. China
| | - Yong-Hua Xu
- Department of Radiology, Xuhui Central Hospital, Shanghai, P.R. China
| | - Xin-Yu Huang
- Department of General Surgery, Shanghai Jiaotong University Affiliated Sixth People's Hospital, Shanghai, P.R. China
| | - Qi Zheng
- Department of General Surgery, Shanghai Jiaotong University Affiliated Sixth People's Hospital, Shanghai, P.R. China
| | - Jian Zhou
- Liver Cancer Institute and Zhongshan Hospital, Fudan University, Shanghai, P.R. China
| | - Zi Chen
- Thayer School of Engineering, Norris Cotton Cancer Center, Dartmouth College, Hanover, NH, USA
| | - Zhao-You Tang
- Liver Cancer Institute and Zhongshan Hospital, Fudan University, Shanghai, P.R. China
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15
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Zeleniak AE, Huang W, Brinkman MK, Fishel ML, Hill R. Loss of MTSS1 results in increased metastatic potential in pancreatic cancer. Oncotarget 2017; 8:16473-16487. [PMID: 28146435 PMCID: PMC5369978 DOI: 10.18632/oncotarget.14869] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2016] [Accepted: 01/19/2017] [Indexed: 02/06/2023] Open
Abstract
Pancreatic ductal adenocarcinoma (PDAC) has a 5-year survival rate of 7%. This dismal prognosis is largely due to the inability to diagnose the disease before metastasis occurs. Tumor cell dissemination occurs early in PDAC. While it is known that inflammation facilitates this process, the underlying mechanisms responsible for this progression have not been fully characterized. Here, we functionally test the role of metastasis suppressor 1 (MTSS1) in PDAC. Despite evidence showing that MTSS1 could be important for regulating metastasis in many different cancers, its function in PDAC has not been studied. Here, we show that loss of MTSS1 leads to increased invasion and migration in PDAC cell lines. Moreover, PDAC cells treated with cancer-associated fibroblast-conditioned media also have increased metastatic potential, which is augmented by loss of MTSS1. Finally, overexpression of MTSS1 in PDAC cell lines leads to a loss of migratory potential in vitro and an increase in overall survival in vivo. Collectively, our data provide insight into an important role for MTSS1 in suppressing tumor cell invasion and migration driven by the tumor microenvironment and suggest that therapeutic strategies aimed at increasing MTSS1 levels may effectively slow the development of metastatic lesions, increasing survival of patients with PDAC.
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Affiliation(s)
- Ann E Zeleniak
- Integrated Biomedical Sciences Program, University of Notre Dame, South Bend, Indiana, USA.,Harper Cancer Research Institute, University of Notre Dame, South Bend, Indiana, USA
| | - Wei Huang
- Harper Cancer Research Institute, University of Notre Dame, South Bend, Indiana, USA.,Department of Biological Sciences, University of Notre Dame, South Bend, Indiana, USA
| | - Mary K Brinkman
- Harper Cancer Research Institute, University of Notre Dame, South Bend, Indiana, USA.,Department of Biological Sciences, University of Notre Dame, South Bend, Indiana, USA
| | - Melissa L Fishel
- Indiana University School of Medicine, Department of Pharmacology and Toxicology, Indianapolis, Indiana, USA.,Indiana University School of Medicine, Department of Pediatrics, Wells Center for Pediatric Research, Indianapolis, Indiana, USA.,Pancreatic Cancer Signature Center, Indianapolis, Indiana, USA
| | - Reginald Hill
- Harper Cancer Research Institute, University of Notre Dame, South Bend, Indiana, USA.,Department of Biological Sciences, University of Notre Dame, South Bend, Indiana, USA
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16
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Wang H, Yu X, Wang X, Li X, Yang S. Missing in metastasis B, regulated by DNMT1, functions as a putative cancer suppressor in human lung giant-cell carcinoma. Acta Biochim Biophys Sin (Shanghai) 2017; 49:238-245. [PMID: 28159994 DOI: 10.1093/abbs/gmw138] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2016] [Indexed: 12/13/2022] Open
Abstract
Missing in metastasis B (MIM-B) has been widely reported to inhibit cancer cell invasion and proliferation in a variety of human cancers. However, the functions of MIM-B in lung cancers are still controversial. In addition, the mechanisms and regulation of MIM-B are poorly understood. In the present study, we found that the invasion level of 95C human lung giant-cell carcinoma cells was elevated when MIM-B was knocked down, while the invasion of 95D was suppressed when MIM-B was overexpressed, proving that MIM-B suppresses human lung giant-cell carcinoma cell invasion, which is similar to its function in most cancers. Furthermore, we reported that an increase in DNA methylation density in the promoter of MIM-B by DNA methyltransferase 1 (DNMT1) is correlated with the silencing of MIM-B expression and the high metastasis of 95D human lung giant-cell carcinoma cell line. Taken together, MIM-B, which is regulated by DNMT1 through DNA methylation, is a putative cancer suppressor in human lung giant-cell carcinoma.
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Affiliation(s)
- Hong Wang
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
- School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou 325035, China
| | - Xiaomin Yu
- School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou 325035, China
| | - Xiaofang Wang
- School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou 325035, China
| | - Xiaokun Li
- School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou 325035, China
| | - Shulin Yang
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
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17
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Sistig T, Lang F, Wrobel S, Baader SL, Schilling K, Eiberger B. Mtss1 promotes maturation and maintenance of cerebellar neurons via splice variant-specific effects. Brain Struct Funct 2017; 222:2787-805. [DOI: 10.1007/s00429-017-1372-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2016] [Accepted: 01/17/2017] [Indexed: 11/26/2022]
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18
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Luxen D, Gielen GH, Waha A, Isselstein L, Müller T, Koch P, Hammes J, Becker A, Simon M, Wurst P, Endl E, Pietsch T, Gessi M, Waha A. MTSS1 is epigenetically regulated in glioma cells and inhibits glioma cell motility. Transl Oncol 2017; 10:70-79. [PMID: 27988423 PMCID: PMC5167248 DOI: 10.1016/j.tranon.2016.11.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2016] [Revised: 11/18/2016] [Accepted: 11/22/2016] [Indexed: 12/23/2022] Open
Abstract
Epigenetic silencing by DNA methylation in brain tumors has been reported for many genes, however, their function on pathogenesis needs to be evaluated. We investigated the MTSS1 gene, identified as hypermethylated by differential methylation hybridization (DMH). Fifty-nine glioma tissue samples and seven glioma cell lines were examined for hypermethylation of the MTSS1 promotor, MTSS1 expression levels and gene dosage. GBM cell lines were treated with demethylating agents and interrogated for functional consequences of MTSS1 expression after transient transfection. Hypermethylation was significantly associated with IDH1/2 mutation. Comparative SNP analysis indicates higher incidence of loss of heterozygosity of MTSS1 in anaplastic astrocytomas and secondary glioblastomas as well as hypermethylation of the remaining allele. Reversal of promoter hypermethylation results in an increased MTSS1 expression. Cell motility was significantly inhibited by MTSS1 overexpression without influencing cell growth or apoptosis. Immunofluorescence analysis of MTSS1 in human astrocytes indicates co-localization with actin filaments. MTSS1 is down-regulated by DNA methylation in glioblastoma cell lines and is part of the G-CIMP phenotype in primary glioma tissues. Our data on normal astrocytes suggest a function of MTSS1 at focal contact structures with an impact on migratory capacity but no influence on apoptosis or cellular proliferation.
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Affiliation(s)
- Daniel Luxen
- Department of Neuropathology, University of Bonn, Germany
| | | | - Anke Waha
- Department of Neuropathology, University of Bonn, Germany
| | | | - Tim Müller
- Department of Neuropathology, University of Bonn, Germany
| | - Philipp Koch
- Institute of Reconstructive Neurobiology, LIFE & BRAIN, University of Bonn, Germany
| | | | - Albert Becker
- Department of Neuropathology, University of Bonn, Germany
| | | | - Peter Wurst
- Department of Molecular Medicine and Experimental Immunology, (Core Facility Flow Cytometry) University of Bonn, Germany
| | - Elmar Endl
- Department of Molecular Medicine and Experimental Immunology, (Core Facility Flow Cytometry) University of Bonn, Germany
| | | | - Marco Gessi
- Department of Neuropathology, University of Bonn, Germany
| | - Andreas Waha
- Department of Neuropathology, University of Bonn, Germany.
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19
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Wu L, Bai X, Xie Y, Yang Z, Yang X, Lin J, Zhu C, Wang A, Zhang H, Miao R, Wu Y, Robson SC, Zhao Y, Sang X, Zhao H. MetastamiRs: A promising choice for antihepatocellular carcinoma nucleic acid drug development. Hepatol Res 2017; 47:80-94. [PMID: 27138942 DOI: 10.1111/hepr.12737] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2016] [Revised: 04/18/2016] [Accepted: 04/29/2016] [Indexed: 12/23/2022]
Abstract
Hepatocellular carcinoma (HCC) is the third leading cause of cancer mortality worldwide, which can be explained at least in part by its propensity towards metastasis and the limited efficacy of adjuvant therapy. MetastamiRs are miRNAs that promote or suppress migration and metastasis of cancer cells, and their functional status is significantly correlated with HCC prognosis. Unlike targeted therapy, metastamiRs have the potential to target multiple genes and signaling pathways and dramatically suppress cancer metastasis. In this review, we discuss the regulatory role of metastamiRs in the HCC invasion-metastasis cascade. Moreover, Kyoto Encyclopedia of Genes and Genomes pathway enrichment analysis has shown that many extensively studied metastamiRs target several critical signaling pathways and these have remarkable therapeutic potential in HCC. The information reviewed here may assist in further anti-HCC miRNA drug screening and development.
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Affiliation(s)
- Liangcai Wu
- Department of Liver Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.,Key Laboratory of Intelligent Information Processing, Institute of Computing Technology, Chinese Academy of Sciences, Beijing, China
| | - Xue Bai
- Department of Liver Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Yuan Xie
- Department of Liver Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Zhen Yang
- Key Laboratory of Computational Biology, CAS-MPG Partner Institute for Computational Biology, Shanghai, China
| | - Xiaobo Yang
- Department of Liver Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Jianzhen Lin
- Department of Liver Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Chengpei Zhu
- Department of Liver Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Anqiang Wang
- Department of Liver Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Haohai Zhang
- Department of Liver Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Ruoyu Miao
- Department of Liver Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.,Liver Center and The Transplant Institute, Departments of Medicine and Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Brookline, Massachusetts, USA
| | - Yan Wu
- Liver Center and The Transplant Institute, Departments of Medicine and Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Brookline, Massachusetts, USA
| | - Simon C Robson
- Liver Center and The Transplant Institute, Departments of Medicine and Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Brookline, Massachusetts, USA
| | - Yi Zhao
- Department of Liver Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.,Key Laboratory of Intelligent Information Processing, Institute of Computing Technology, Chinese Academy of Sciences, Beijing, China
| | - Xinting Sang
- Department of Liver Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Haitao Zhao
- Department of Liver Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.,Center of Translational Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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20
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Liao YH, Chiang KH, Shieh JM, Huang CR, Shen CJ, Huang WC, Chen BK. Epidermal growth factor-induced ANGPTL4 enhances anoikis resistance and tumour metastasis in head and neck squamous cell carcinoma. Oncogene 2016; 36:2228-2242. [PMID: 27797381 PMCID: PMC5415642 DOI: 10.1038/onc.2016.371] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2016] [Revised: 08/03/2016] [Accepted: 08/19/2016] [Indexed: 01/04/2023]
Abstract
Epidermal growth factor (EGF) is important for cancer cell proliferation, angiogenesis and metastasis in many types of cancer. However, the mechanisms involved in EGF-induced head and neck squamous cell carcinoma (HNSCC) metastasis remain largely unknown. In this study, we reveal that angiopoietin-like 4 (ANGPTL4) plays an important role in the regulation of EGF-induced cancer metastasis. We showed that EGF-induced ANGPTL4 expression promoted anoikis resistance and cancer cell migration and invasion in HNSCC. In addition, depletion of ANGPTL4 inhibited EGF-induced cancer cell invasion. Autocrine production of EGF-induced ANGPTL4 regulated the expression of matrix metalloproteinases (MMPs). The induction of MMP-1 gene expression by ANGPTL4-activated integrin β1 signalling occurred through the AP-1 binding site in the MMP-1 gene promoter. Furthermore, down-regulation of MMP-1 impeded EGF- and recombinant ANGPTL4-enhanced HNSCC cell migration and invasion. Depletion of ANGPTL4 significantly blocked EGF-primed extravasation and metastatic seeding of tumour cells and MMP-1 expression in lungs. However, no effect of ANGPTL4 on tumour growth was observed. These results suggest that EGF-induced expression and autocrine production of ANGPTL4 enhances HNSCC metastasis via the up-regulation of MMP-1 expression. Inhibition of ANGPTL4 expression may be a potential strategy for the treatment of EGFR-mediated HNSCC metastasis.
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Affiliation(s)
- Y-H Liao
- Institute of Bioinformatics and Biosignal Transduction, College of Bioscience and Biotechnology, National Cheng Kung University, Tainan, Taiwan, ROC
| | - K-H Chiang
- Department of Chest Medicine, Chi Mei Medical Center, Tainan, Taiwan, ROC
| | - J-M Shieh
- Department of Chest Medicine, Chi Mei Medical Center, Tainan, Taiwan, ROC
| | - C-R Huang
- Institute of Bioinformatics and Biosignal Transduction, College of Bioscience and Biotechnology, National Cheng Kung University, Tainan, Taiwan, ROC.,Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei, Taiwan, ROC
| | - C-J Shen
- Institute of Bioinformatics and Biosignal Transduction, College of Bioscience and Biotechnology, National Cheng Kung University, Tainan, Taiwan, ROC
| | - W-C Huang
- Institute of Bioinformatics and Biosignal Transduction, College of Bioscience and Biotechnology, National Cheng Kung University, Tainan, Taiwan, ROC.,Institute of Cellular and Organismic Biology, Academia Sinica, Taipei, Taiwan, ROC
| | - B-K Chen
- Institute of Bioinformatics and Biosignal Transduction, College of Bioscience and Biotechnology, National Cheng Kung University, Tainan, Taiwan, ROC.,Department of Pharmacology, College of Medicine, National Cheng Kung University, Tainan, Taiwan, ROC.,Institute for Cancer Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan, ROC
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21
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Duppel U, Woenckhaus M, Schulz C, Merk J, Dietmaier W. Quantitative detection of TUSC3 promoter methylation -a potential biomarker for prognosis in lung cancer. Oncol Lett 2016; 12:3004-3012. [PMID: 27698890 PMCID: PMC5038372 DOI: 10.3892/ol.2016.4927] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2016] [Accepted: 06/17/2016] [Indexed: 11/06/2022] Open
Abstract
Aberrant promoter methylation of tumor relevant genes frequently occurs in early steps of carcinogenesis and during tumor progression. Epigenetic alterations could be used as potential biomarkers for early detection and for prediction of prognosis and therapy response in lung cancer. The present study quantitatively analyzed the methylation status of known and potential gatekeeper and tumor suppressor genes [O-6-methylguanine-DNA methyltransferase (MGMT), Ras association domain family member 1A (RASSF1A), Ras protein activator like 1 (RASAL1), programmed cell death 4 (PDCD4), metastasis suppressor 1 (MTSS1) and tumor suppressor candidate 3 (TUSC3)] in 42 lung cancers and in corresponding non-malignant bronchus and lung tissue using bisulfite-conversion independent methylation-quantification of endonuclease-resistant DNA (MethyQESD). Methylation status was associated with clinical and pathological parameters. No methylation was found in the promoter regions of PDCD4 and MTSS1 of either compartment. MGMT, RASSF1A and RASAL1 showed sporadic (up to 26.2%) promoter methylation. The promoter of TUSC3, however, was frequently methylated in the tumor (59.5%), benign bronchus (67.9%) and alveolar lung (31.0%) tissues from each tumor patient. The methylation status of TUSC3 was significantly associated with smaller tumor size (P=0.008) and a longer overall survival (P=0.013). Pooled blood DNA of healthy individuals did not show any methylation of either gene. Therefore, methylation of TUSC3 shows prognostic and pathobiological relevance in lung cancer. Furthermore, quantitative detection of TUSC3 promoter methylation appears to be a promising tool for early detection and prediction of prognosis in lung cancer. However, additional studies are required to confirm this finding.
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Affiliation(s)
- Uta Duppel
- Institute of Pathology, University of Regensburg, D-93053 Regensburg, Bavaria, Germany
| | | | - Christian Schulz
- Department of Internal Medicine II, University Hospital Regensburg, D-93053 Regensburg, Bavaria, Germany
| | - Johannes Merk
- Department of Thoracic Surgery, University Hospital Regensburg, D-93053 Regensburg, Bavaria, Germany
| | - Wolfgang Dietmaier
- Institute of Pathology, University of Regensburg, D-93053 Regensburg, Bavaria, Germany
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22
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Huang XY, Huang ZL, Xu B, Chen Z, Re TJ, Zheng Q, Tang ZY, Huang XY. Elevated MTSS1 expression associated with metastasis and poor prognosis of residual hepatitis B-related hepatocellular carcinoma. J Exp Clin Cancer Res 2016; 35:85. [PMID: 27230279 PMCID: PMC4881066 DOI: 10.1186/s13046-016-0361-8] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/06/2016] [Accepted: 05/17/2016] [Indexed: 02/08/2023]
Abstract
Background Hepatectomy generally offers the best chance of long-term survival for patients with hepatocellular carcinoma (HCC). Many studies have shown that hepatectomy accelerates tumor metastasis, but the mechanism remains unclear. Methods An orthotopic nude mice model with palliative HCC hepatectomy was performed in this study. Metastasis-related genes in tumor following resection were screened; HCC invasion, metastasis, and some molecular alterations were examined in vivo and in vitro. Clinical significance of key gene mRNA expression was also analyzed. Results Metastasis suppressor 1 (MTSS1) located in the central position of gene function net of residual HCC. MTSS1 was up-regulated in residual tumor after palliative resection. In hepatitis B-related HCC patients undergone palliative hepatectomy, those with higher MTSS1 mRNA expression accompanied by activation of matrix metalloproteinase 2 (MMP2) in residual HCC, had earlier residual HCC detection after hepatectomy and poorer survival when compared to those with lower MTSS1. In different cell lines, the levels of MTSS1 mRNA increased in parallel with metastatic potential. MTSS1 down regulation via siRNA decreased MMP2 activity, reduced invasive potentials of HCC by 28.9 % in vitro, and averted the deteriorated lung metastatic extent in vivo. Conclusions The poor prognosis of hepatitis B-related HCC patients following palliative hepatectomy associates with elevated MTSS1 mRNA expression; therefore, MTSS1 may provide a new research field for HCC diagnosis and treatment. Electronic supplementary material The online version of this article (doi:10.1186/s13046-016-0361-8) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Xiu-Yan Huang
- Department of General Surgery, Shanghai Jiaotong University Affiliated Sixth People's Hospital, 600 Yi Shan Road, Shanghai, 200233, Peoples Republic of China.
| | - Zi-Li Huang
- Department of Radiology, Xuhui Central Hospital, Shanghai, 200031, Peoples Republic of China
| | - Bin Xu
- Department of General Surgery, The Tenth People's Hospital of Tongji University, Shanghai, 200072, Peoples Republic of China
| | - Zi Chen
- Thayer School of Engineering, Dartmouth College, Hanover, NH, 03755, USA
| | - Thomas Joseph Re
- Department of Radiology, Boston Children's Hospital, Harvard Medical School, Boston, MA, 02446, USA
| | - Qi Zheng
- Department of General Surgery, Shanghai Jiaotong University Affiliated Sixth People's Hospital, 600 Yi Shan Road, Shanghai, 200233, Peoples Republic of China
| | - Zhao-You Tang
- Liver Cancer Institute and Zhongshan Hospital, Fudan University, Shanghai, 200032, Peoples Republic of China
| | - Xin-Yu Huang
- Department of General Surgery, Shanghai Jiaotong University Affiliated Sixth People's Hospital, 600 Yi Shan Road, Shanghai, 200233, Peoples Republic of China.
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23
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Xu L, Zhong J, Guo B, Zhu Q, Liang H, Wen N, Yun W, Zhang L. miR-96 promotes the growth of prostate carcinoma cells by suppressing MTSS1. Tumour Biol 2016; 37:12023-32. [DOI: 10.1007/s13277-016-5058-2] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2015] [Accepted: 05/01/2016] [Indexed: 12/14/2022] Open
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24
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Zhao P, Cao M, Song L, Wu H, Hu K, Chen B, Wang Q, Gu N. Downregulation of MIM protein inhibits the cellular endocytosis process of magnetic nanoparticles in macrophages. RSC Adv 2016. [DOI: 10.1039/c6ra21530k] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
MIM plays a positive role in the RAW 264.7 cellular endocytosis process of iron oxide nanoparticles mainly in clathrin-mediated pathway, which is a meaningful molecular basis for biomedical applications of nanomaterials.
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Affiliation(s)
- Peng Zhao
- State Key Laboratory of Bioelectronics
- Jiangsu Key Laboratory for Biomaterials and Devices
- School of Biological Science and Medical Engineering
- Southeast University
- Nanjing 210096
| | - Meng Cao
- State Key Laboratory of Bioelectronics
- Jiangsu Key Laboratory for Biomaterials and Devices
- School of Biological Science and Medical Engineering
- Southeast University
- Nanjing 210096
| | - Lina Song
- State Key Laboratory of Bioelectronics
- Jiangsu Key Laboratory for Biomaterials and Devices
- School of Biological Science and Medical Engineering
- Southeast University
- Nanjing 210096
| | - Hao Wu
- State Key Laboratory of Bioelectronics
- Jiangsu Key Laboratory for Biomaterials and Devices
- School of Biological Science and Medical Engineering
- Southeast University
- Nanjing 210096
| | - Ke Hu
- State Key Laboratory of Bioelectronics
- Jiangsu Key Laboratory for Biomaterials and Devices
- School of Biological Science and Medical Engineering
- Southeast University
- Nanjing 210096
| | - Bo Chen
- State Key Laboratory of Bioelectronics
- Jiangsu Key Laboratory for Biomaterials and Devices
- School of Biological Science and Medical Engineering
- Southeast University
- Nanjing 210096
| | - Qiwei Wang
- State Key Laboratory of Bioelectronics
- Jiangsu Key Laboratory for Biomaterials and Devices
- School of Biological Science and Medical Engineering
- Southeast University
- Nanjing 210096
| | - Ning Gu
- State Key Laboratory of Bioelectronics
- Jiangsu Key Laboratory for Biomaterials and Devices
- School of Biological Science and Medical Engineering
- Southeast University
- Nanjing 210096
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25
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LIU RONG, MARTIN TRACEYA, JORDAN NICOLAJ, RUGE FIONA, YE LIN, JIANG WENG. Metastasis suppressor 1 expression in human ovarian cancer: The impact on cellular migration and metastasis. Int J Oncol 2015; 47:1429-39. [DOI: 10.3892/ijo.2015.3121] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2015] [Accepted: 05/26/2015] [Indexed: 11/05/2022] Open
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26
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Giacobbe A, Compagnone M, Bongiorno-Borbone L, Antonov A, Markert EK, Zhou JH, Annicchiarico-Petruzzelli M, Melino G, Peschiaroli A. p63 controls cell migration and invasion by transcriptional regulation of MTSS1. Oncogene 2015; 35:1602-8. [PMID: 26119942 DOI: 10.1038/onc.2015.230] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2014] [Revised: 04/20/2015] [Accepted: 05/09/2015] [Indexed: 12/22/2022]
Abstract
Metastasis is a multistep cell-biological process, which is orchestrated by many factors, including metastasis activators and suppressors. Metastasis Suppressor 1 (MTSS1) was originally identified as a metastasis suppressor protein whose expression is lost in metastatic bladder and prostate carcinomas. However, recent findings indicate that MTSS1 acts as oncogene and pro-migratory factor in melanoma tumors. Here, we identify and characterized a molecular mechanism controlling MTSS1 expression, which impinges on a pro-tumorigenic role of MTSS1 in breast tumors. We found that in normal and in cancer cell lines ΔNp63 is able to drive the expression of MTSS1 by binding to a p63-binding responsive element localized in the MTSS1 locus. We reported that ΔNp63 is able to drive the migration of breast tumor cells by inducing the expression of MTSS1. Notably, in three human breast tumors data sets the MTSS1/p63 co-expression is a negative prognostic factor on patient survival, suggesting that the MTSS1/p63 axis might be functionally important to regulate breast tumor progression.
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Affiliation(s)
- A Giacobbe
- Department of Experimental Medicine and Surgery, University of Rome 'Tor Vergata', Rome, Italy
| | - M Compagnone
- Department of Experimental Medicine and Surgery, University of Rome 'Tor Vergata', Rome, Italy
| | - L Bongiorno-Borbone
- Department of Experimental Medicine and Surgery, University of Rome 'Tor Vergata', Rome, Italy
| | - A Antonov
- Medical Research Council, Toxicology Unit, Leicester University, Leicester, UK
| | - E K Markert
- The Simons Center for Systems Biology, Institute for Advanced Study, Princeton, NJ, USA
| | - J H Zhou
- Department of Human Genetics, Radboud University Medical Centre Nijmegen, Nijmegen, the Netherlands
| | - M Annicchiarico-Petruzzelli
- Biochemistry Laboratory IDI-IRCCS c/o Department of Experimental Medicine and Surgery, University of Rome 'Tor Vergata', Rome, Italy
| | - G Melino
- Department of Experimental Medicine and Surgery, University of Rome 'Tor Vergata', Rome, Italy.,Medical Research Council, Toxicology Unit, Leicester University, Leicester, UK
| | - A Peschiaroli
- Institute of Cell Biology and Neurobiology (IBCN), CNR, Rome, Italy
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27
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Isaksson HS, Sorbe B, Nilsson TK. Whole genome expression profiling of blood cells in ovarian cancer patients -prognostic impact of the CYP1B1, MTSS1, NCALD, and NOP14. Oncotarget 2015; 5:4040-9. [PMID: 24961659 PMCID: PMC4147304 DOI: 10.18632/oncotarget.1938] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Ovarian cancer patients with different tumor stages and cell differentiation might be distinguished from each other by gene expression profiles in whole blood cell mRNA by the Affymetrix Human Gene 1.0 ST Array. We also examined if there is any association with other clinical variables, response to therapy, and residual tumor burden after surgery. Patients were divided into two groups, one with poor prognosis, advanced stage and poorly differentiated tumors (n = 22), and one group with good prognosis, early stage and well- to medium differentiated tumors (n = 11). Six genes were found to be differentially expressed: the PDIA3, LYAR, NOP14, NCALD and MTSS1 genes were down-regulated and the CYP1B1 gene expression was up-regulated in the poor prognosis group, all with p value <0.05, adjusted for mass comparison. In survival analyses, CYP1B1, MTSS1, NCALD and NOP14 remained significantly different (p<0.05). Patient groups did not differ in any transcript related to acute phase or immune responses. This minimal gene expression signature of prognostic ovarian cancer-related genes opens up an avenue for more practicable monitoring of ovarian cancer patients by simple peripheral blood tests, which may evolve into a tool to guide selection of curative and postoperative supportive therapies.
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Affiliation(s)
| | | | - Torbjörn K Nilsson
- Department of Medical Biosciences/Clinical Chemistry, Umeå University,Umeå, Sweden
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28
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Kedmi M, Ben-Chetrit N, Körner C, Mancini M, Ben-Moshe NB, Lauriola M, Lavi S, Biagioni F, Carvalho S, Cohen-Dvashi H, Schmitt F, Wiemann S, Blandino G, Yarden Y. EGF induces microRNAs that target suppressors of cell migration: miR-15b targets MTSS1 in breast cancer. Sci Signal 2015; 8:ra29. [PMID: 25783158 DOI: 10.1126/scisignal.2005866] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Growth factors promote tumor growth and metastasis. We found that epidermal growth factor (EGF) induced a set of 22 microRNAs (miRNAs) before promoting the migration of mammary cells. These miRNAs were more abundant in human breast tumors relative to the surrounding tissue, and their abundance varied among breast cancer subtypes. One of these miRNAs, miR-15b, targeted the 3' untranslated region of MTSS1 (metastasis suppressor protein 1). Although xenografts in which MTSS1 was knocked down grew more slowly in mice initially, longer-term growth was unaffected. Knocking down MTSS1 increased migration and Matrigel invasion of nontransformed mammary epithelial cells. Overexpressing MTSS1 in an invasive cell line decreased cell migration and invasiveness, decreased the formation of invadopodia and actin stress fibers, and increased the formation of cellular junctions. In tissues from breast cancer patients with the aggressive basal subtype, an inverse correlation occurred with the high expression of miRNA-15b and the low expression of MTSS1. Furthermore, low abundance of MTSS1 correlated with poor patient prognosis. Thus, growth factor-inducible miRNAs mediate mechanisms underlying the progression of cancer.
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Affiliation(s)
- Merav Kedmi
- Department of Biological Regulation, Weizmann Institute of Science, Rehovot 76100, Israel
| | - Nir Ben-Chetrit
- Department of Biological Regulation, Weizmann Institute of Science, Rehovot 76100, Israel
| | - Cindy Körner
- Division of Molecular Genome Analysis, German Cancer Research Center (DKFZ), Heidelberg 69120, Germany
| | - Maicol Mancini
- Department of Biological Regulation, Weizmann Institute of Science, Rehovot 76100, Israel
| | - Noa Bossel Ben-Moshe
- Department of Physics of Complex Systems, Weizmann Institute of Science, Rehovot 76100, Israel
| | - Mattia Lauriola
- Department of Biological Regulation, Weizmann Institute of Science, Rehovot 76100, Israel
| | - Sara Lavi
- Department of Biological Regulation, Weizmann Institute of Science, Rehovot 76100, Israel
| | - Francesca Biagioni
- Translational Oncogenomics Unit, Italian National Cancer Institute "Regina Elena," Rome 00144, Italy
| | - Silvia Carvalho
- Department of Biological Regulation, Weizmann Institute of Science, Rehovot 76100, Israel
| | - Hadas Cohen-Dvashi
- Department of Biological Regulation, Weizmann Institute of Science, Rehovot 76100, Israel
| | - Fernando Schmitt
- Laboratory Medicine and Pathobiology, Faculty of Medicine, University of Toronto and Department of Pathology, University Health Network, Toronto, Ontario M5C 2C4, Canada. IPATIMUP, University of Porto, Porto 4200-465, Portugal
| | - Stefan Wiemann
- Division of Molecular Genome Analysis, German Cancer Research Center (DKFZ), Heidelberg 69120, Germany
| | - Giovanni Blandino
- Translational Oncogenomics Unit, Italian National Cancer Institute "Regina Elena," Rome 00144, Italy
| | - Yosef Yarden
- Department of Biological Regulation, Weizmann Institute of Science, Rehovot 76100, Israel.
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29
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Kayser G, Csanadi A, Kakanou S, Prasse A, Kassem A, Stickeler E, Passlick B, Zur Hausen A. Downregulation of MTSS1 expression is an independent prognosticator in squamous cell carcinoma of the lung. Br J Cancer 2015; 112:866-73. [PMID: 25625275 DOI: 10.1038/bjc.2015.2] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2014] [Accepted: 12/22/2014] [Indexed: 12/29/2022] Open
Abstract
Background: The metastasis suppressor 1 (MTSS1) is a newly discovered protein putatively involved in tumour progression and metastasis. Material and Methods: Immunohistochemical expression of MTSS1 was analysed in 264 non-small-cell lung carcinomas (NSCLCs). Results: The metastasis suppressor 1 was significantly overexpressed in NSCLC compared with normal lung (P=0.01). Within NSCLC, MTSS1 expression was inversely correlated with pT-stage (P=0.019) and histological grading (P<0.001). NSCLC with MTSS1 downregulation (<20%) showed a significantly worse outcome (P=0.007). This proved to be an independent prognostic factor in squamous cell carcinomas (SCCs; P=0.041), especially in early cancer stages (P=0.006). Conclusion: The metastasis suppressor 1 downregulation could thus serve as a stratifying marker for adjuvant therapy in early-stage SCC of the lung.
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30
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Zhong J, Shaik S, Wan L, Tron AE, Wang Z, Sun L, Inuzuka H, Wei W. SCF β-TRCP targets MTSS1 for ubiquitination-mediated destruction to regulate cancer cell proliferation and migration. Oncotarget 2014; 4:2339-53. [PMID: 24318128 PMCID: PMC3926831 DOI: 10.18632/oncotarget.1446] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Metastasis suppressor 1 (MTSS1) is an important tumor suppressor protein, and loss of MTSS1 expression has been observed in several types of human cancers. Importantly, decreased MTSS1 expression is associated with more aggressive forms of breast and prostate cancers, and with poor survival rate. Currently, it remains unclear how MTSS1 is regulated in cancer cells, and whether reduced MTSS1 expression contributes to elevated cancer cell proliferation and migration. Here we report that the SCFβ-TRCP regulates MTSS1 protein stability by targeting it for ubiquitination and subsequent destruction via the 26S proteasome. Notably, depletion of either Cullin 1 or β-TRCP1 led to increased levels of MTSS1. We further demonstrated a crucial role for Ser322 in the DSGXXS degron of MTSS1 in governing SCFβ-TRCP-mediated MTSS1 degradation. Mechanistically, we defined that Casein Kinase Iδ (CKIδ) phosphorylates Ser322 to trigger MTSS1's interaction with β-TRCP for subsequent ubiquitination and degradation. Importantly, introducing wild-type MTSS1 or a non-degradable MTSS1 (S322A) into breast or prostate cancer cells with low MTSS1 expression significantly inhibited cellular proliferation and migration. Moreover, S322A-MTSS1 exhibited stronger effects in inhibiting cell proliferation and migration when compared to ectopic expression of wild-type MTSS1. Therefore, our study provides a novel molecular mechanism for the negative regulation of MTSS1 by β-TRCP in cancer cells. It further suggests that preventing MTSS1 degradation could be a possible novel strategy for clinical treatment of more aggressive breast and prostate cancers.
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Affiliation(s)
- Jiateng Zhong
- Department of Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA
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31
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Zhang J, Tong Y, Ren L, Li CD. Expression of metastasis suppressor 1 in cervical carcinoma and the clinical significance. Oncol Lett 2014; 8:2145-2149. [PMID: 25295101 PMCID: PMC4186592 DOI: 10.3892/ol.2014.2508] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2013] [Accepted: 08/01/2014] [Indexed: 12/05/2022] Open
Abstract
This study aimed to investigate the expression of metastasis suppressor 1 (MTSS1) in cervical intraepithelial neoplasia (CIN) and malignant cervical tissues, and the role of MTSS1 in carcinogenesis. MTSS1 expression was detected by immunohistochemistry in 147 cervical tissue specimens collected from 30 healthy individuals, 30 patients with cervical CIN I, 30 patients with CIN II–III and 57 patients with cervical cancer. The association between MTSS1 expression and clinicopathological factors was also examined. MTSS1 was found to be positively expressed in 43.33% CIN I cervical tissues, 100% CIN II–III cervical tissues and 100% malignant cervical tissues, but was weakly or negatively expressed in benign cervical tissues. The positive expression rates of MTSS1 were significantly higher in CIN II–III and malignant cervical tissues than in CIN I or normal cervical tissues (P<0.05). When examining MTSS1 expression and clinicopathological factors, the strong positive MTSS1 expression rates in early-stage versus middle- and advanced-stage cervical cancer tissues were 39.13% and 82.35%, respectively. Furthermore, the positive expression rates of MTSS1 were significantly higher in cervical tissues at an advanced clinical stage than those at an early clinical stage (P<0.05). The results suggest that the dysregulation of MTSS1 may be involved in cervical carcinogenesis, and thus MTSS1 may be a novel diagnostic biomarker or therapeutic target in cervical cancer patients.
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Affiliation(s)
- Juan Zhang
- Department of Obstetrics and Gynecology, Airforce General Hospital, Beijing 100142, P.R. China
| | - Ying Tong
- Department of Obstetrics and Gynecology, Airforce General Hospital, Beijing 100142, P.R. China
| | - Li Ren
- Department of Pathology, Airforce General Hospital, Beijing 100142, P.R. China
| | - Chun-Dong Li
- Department of Obstetrics and Gynecology, Airforce General Hospital, Beijing 100142, P.R. China
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32
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Mertz KD, Pathria G, Wagner C, Saarikangas J, Sboner A, Romanov J, Gschaider M, Lenz F, Neumann F, Schreiner W, Nemethova M, Glassmann A, Lappalainen P, Stingl G, Small JV, Fink D, Chin L, Wagner SN. MTSS1 is a metastasis driver in a subset of human melanomas. Nat Commun 2014; 5:3465. [PMID: 24632752 DOI: 10.1038/ncomms4465] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2013] [Accepted: 02/18/2014] [Indexed: 12/21/2022] Open
Abstract
In cancers with a highly altered genome, distinct genetic alterations drive subsets rather than the majority of individual tumours. Here we use a sequential search across human tumour samples for transcript outlier data points with associated gene copy number variations that correlate with patient's survival to identify genes with pro-invasive functionality. Employing loss and gain of function approaches in vitro and in vivo, we show that one such gene, MTSS1, promotes the ability of melanocytic cells to metastasize and engages actin dynamics via Rho-GTPases and cofilin in this process. Indeed, high MTSS1 expression defines a subgroup of primary melanomas with unfavourable prognosis. These data underscore the biological, clinical and potential therapeutic implications of molecular subsets within genetically complex cancers.
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33
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Nobis M, McGhee EJ, Morton JP, Schwarz JP, Karim SA, Quinn J, Edward M, Campbell AD, McGarry LC, Evans TRJ, Brunton VG, Frame MC, Carragher NO, Wang Y, Sansom OJ, Timpson P, Anderson KI. Intravital FLIM-FRET imaging reveals dasatinib-induced spatial control of src in pancreatic cancer. Cancer Res 2013; 73:4674-86. [PMID: 23749641 DOI: 10.1158/0008-5472.can-12-4545] [Citation(s) in RCA: 95] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Cancer invasion and metastasis occur in a complex three-dimensional (3D) environment, with reciprocal feedback from the surrounding host tissue and vasculature-governing behavior. In this study, we used a novel intravital method that revealed spatiotemporal regulation of Src activity in response to the anti-invasive Src inhibitor dasatinib. A fluorescence lifetime imaging microscopy-fluorescence resonance energy transfer (FLIM-FRET) Src biosensor was used to monitor drug-targeting efficacy in a transgenic p53-mutant mouse model of pancreatic cancer. In contrast to conventional techniques, FLIM-FRET analysis allowed for accurate, time-dependent, live monitoring of drug efficacy and clearance in live tumors. In 3D organotypic cultures, we showed that a spatially distinct gradient of Src activity exists within invading tumor cells, governed by the depth of penetration into complex matrices. In parallel, this gradient was also found to exist within live tumors, where Src activity is enhanced at the invasive border relative to the tumor cortex. Upon treatment with dasatinib, we observed a switch in activity at the invasive borders, correlating with impaired metastatic capacity in vivo. Src regulation was governed by the proximity of cells to the host vasculature, as cells distal to the vasculature were regulated differentially in response to drug treatment compared with cells proximal to the vasculature. Overall, our results in live tumors revealed that a threshold of drug penetrance exists in vivo and that this can be used to map areas of poor drug-targeting efficiency within specific tumor microenvironments. We propose that using FLIM-FRET in this capacity could provide a useful preclinical tool in animal models before clinical translation.
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Affiliation(s)
- Max Nobis
- The Beatson Institute for Cancer Research, Glasgow; Section of Dermatology, School of Medicine, University of Glasgow, Glasgow, UK
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Lei R, Tang J, Zhuang X, Deng R, Li G, Yu J, Liang Y, Xiao J, Wang H, Yang Q, Hu G. Suppression of MIM by microRNA-182 activates RhoA and promotes breast cancer metastasis. Oncogene 2014; 33:1287-96. [DOI: 10.1038/onc.2013.65] [Citation(s) in RCA: 91] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2012] [Revised: 12/18/2012] [Accepted: 01/05/2013] [Indexed: 02/07/2023]
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Jaszberenyi M, Schally AV, Block NL, Zarandi M, Cai RZ, Vidaurre I, Szalontay L, Jayakumar AR, Rick FG. Suppression of the proliferation of human U-87 MG glioblastoma cells by new antagonists of growth hormone-releasing hormone in vivo and in vitro. Target Oncol 2013; 8:281-90. [PMID: 23371031 DOI: 10.1007/s11523-013-0264-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2012] [Accepted: 01/21/2013] [Indexed: 02/06/2023]
Abstract
Five-year survival of patients afflicted with glioblastoma multiforme (GBM) is rare, making this cancer one of the most feared malignancies. Previously, we reported that growth hormone-releasing hormone (GHRH) is a potent growth factor in cancers. The present work evaluated the effects of two antagonistic analogs of GHRH (MIA-604 and MIA-690) on the proliferation of U-87 MG GBM tumors, in vivo as well as in vitro. Both analogs were administered subcutaneously and dose-dependently inhibited the growth of tumors transplanted into nude mice (127 animals in seven groups). The analogs also inhibited cell proliferation in vitro, decreased cell size, and promoted apoptotic and autophagic processes. Both antagonists stimulated contact inhibition, as indicated by the expression of the E-cadherin-β-catenin complex and integrins, and decreased the release of humoral regulators of glial growth such as FGF, PDGFβ, and TGFβ, as revealed by genomic or proteomic detection methods. The GHRH analogs downregulated other tumor markers (Jun-proto-oncogene, mitogen-activated protein kinase-1, and melanoma cell adhesion molecule), upregulated tumor suppressors (p53, metastasis suppressor-1, nexin, TNF receptor 1A, BCL-2-associated agonist of cell death, and ifκBα), and inhibited the expression of the regulators of angiogenesis and invasion (angiopoetin-1, VEGF, matrix metallopeptidase-1, S100 calcium binding protein A4, and synuclein-γ). Our findings indicate that GHRH antagonists inhibit growth of GBMs by multiple mechanisms and decrease both tumor cell size and number.
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Spence HJ, Timpson P, Tang HR, Insall RH, Machesky LM. Scar/WAVE3 contributes to motility and plasticity of lamellipodial dynamics but not invasion in three dimensions. Biochem J 2012; 448:35-42. [PMID: 22909346 PMCID: PMC3929901 DOI: 10.1042/bj20112206] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
The Scar (suppressor of cAMP receptor)/WAVE [WASP (Wiskott-Aldrich syndrome protein) verprolin homologous] complex plays a major role in the motility of cells by activating the Arp2/3 complex, which initiates actin branching and drives protrusions. Mammals have three Scar/WAVE isoforms, which show some tissue-specific expression, but their functions have not been differentiated. In the present study we show that depletion of Scar/WAVE3 in the mammalian breast cancer cells MDA-MB-231 results in larger and less dynamic lamellipodia. Scar/WAVE3-depleted cells move more slowly but more persistently on a two-dimensional matrix and they typically only show one lamellipod. However, Scar/WAVE3 appears to have no role in driving invasiveness in a three-dimensional Matrigel™ invasion assay or a three-dimensional collagen invasion assay, suggesting that lamellipodial persistence as seen in two-dimensions is not crucial in three-dimensional environments.
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Affiliation(s)
- Heather J Spence
- The Beatson Institute for Cancer Research, Garscube Estate, Switchback Rd., Bearsden, Glasgow G61 1BD, UK
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Dawson JC, Bruche S, Spence HJ, Braga VMM, Machesky LM. Mtss1 promotes cell-cell junction assembly and stability through the small GTPase Rac1. PLoS One 2012; 7:e31141. [PMID: 22479308 PMCID: PMC3313965 DOI: 10.1371/journal.pone.0031141] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2011] [Accepted: 01/03/2012] [Indexed: 11/19/2022] Open
Abstract
Cell-cell junctions are an integral part of epithelia and are often disrupted in cancer cells during epithelial-to-mesenchymal transition (EMT), which is a main driver of metastatic spread. We show here that Metastasis suppressor-1 (Mtss1; Missing in Metastasis, MIM), a member of the IMD-family of proteins, inhibits cell-cell junction disassembly in wound healing or HGF-induced scatter assays by enhancing cell-cell junction strength. Mtss1 not only makes cells more resistant to cell-cell junction disassembly, but also accelerates the kinetics of adherens junction assembly. Mtss1 drives enhanced junction formation specifically by elevating Rac-GTP. Lastly, we show that Mtss1 depletion reduces recruitment of F-actin at cell-cell junctions. We thus propose that Mtss1 promotes Rac1 activation and actin recruitment driving junction maintenance. We suggest that the observed loss of Mtss1 in cancers may compromise junction stability and thus promote EMT and metastasis.
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Affiliation(s)
- John C. Dawson
- Beatson Institute for Cancer Research, Glasgow, United Kingdom
| | - Susann Bruche
- Faculty of Medicine, National Heart and Lung Institute, Imperial College London, London, United Kingdom
| | | | - Vania M. M. Braga
- Faculty of Medicine, National Heart and Lung Institute, Imperial College London, London, United Kingdom
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