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Lv HB, Wu QY, Zhang YJ, Quan SW, Ma N, Dai YQ, Sun Y. Study on the expression and prognostic relationship of MYL6B in liver cancer based on bioinformatics. World J Clin Oncol 2024; 15:1188-1197. [PMID: 39351463 PMCID: PMC11438851 DOI: 10.5306/wjco.v15.i9.1188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/07/2024] [Revised: 07/21/2024] [Accepted: 08/02/2024] [Indexed: 08/29/2024] Open
Abstract
BACKGROUND Primary liver cancer is a prevalent and deadly cancer type. Despite treatment advances, prognosis remains poor, with high recurrence rates. Early detection is crucial but challenging due to the disease's insidious nature. Myosin proteins play significant roles in cancer development, influencing cell migration, invasion, and tumor suppression. MYL6B, a myosin light chain, is involved in various cellular processes and has been associated with poor prognosis in colorectal adenocarcinoma and potential as a biomarker in breast cancer. AIM To investigate the expression of MYL6B in liver hepatocellular carcinoma (LIHC) and its impact on prognosis and potential mechanisms of action using bioinformatics methods. METHODS The expression of MYL6B in pan-cancer and normal tissues was analyzed using the gene expression profiling interactive analysis 2 and tumor immune estimation resource databases. The expression level of MYL6B in LIHC tissues and its relationship with prognosis were analyzed, immunohistochemical analysis of MYL6B and its effect on immune cell infiltration, and the protein network were further studied. RESULTS MYL6B was highly expressed in diffuse large b-cell lymphoma, LIHC, pancreatic adenocarcinoma, skin cutaneous melanoma, thymoma, uterine corpus endometrial carcinoma, uterine carcinosarcoma, and lowly expressed in kidney chromophobe, acute myeloid leukemia, testicular germ cell tumors. The expression level of MYL6B was significantly different between cancer and normal tissues. It had a significant impact on both overall survival and disease-free survival. MYL6B is highly expressed in hepatocellular carcinoma and its expression level increases with cancer progression. High MYL6B expression is associated with poor prognosis in terms of overall survival and recurrence-free survival. The immunohistochemical level of MYL6B is high in hepatocellular carcinoma tissues, and MYL6B has a high level of immune infiltration inflammation. In protein network analysis, MYL6B is correlated with MYL2, MYL6, MYL9, MYLK4, MYLK2, MYL12A, MYL12B, MYH11, MYH9 and MYH10. CONCLUSION The expression level of MYL6B in LIHC was significantly higher than in normal liver tissues, and it was correlated with the degree of differentiation survival rate, and immune infiltration. MYL6B is a potential target for LIHC treatment.
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Affiliation(s)
- Hai-Bing Lv
- Department of General Surgery, Beidahuang Group General Hospital, Harbin 150000, Heilongjiang Province, China
| | - Qing-Yun Wu
- Department of General Surgery, Xianning Central Hospital, Xianning 437000, Hubei Province, China
| | - Yu-Jiao Zhang
- Department of Medical oncology, Beidahuang Group General Hospital, Harbin 150000, Heilongjiang Province, China
| | - Sheng-Wei Quan
- Department of General Surgery, Beidahuang Group General Hospital, Harbin 150000, Heilongjiang Province, China
| | - Ning Ma
- Department of General Surgery, Daqing Oilfield General Hospital, Daqing 163000, Heilongjiang Province, China
| | - Yu-Qing Dai
- College of Clinical Medicine, Bengbu Medical University, Bengbu 233000, Anhui Province, China
| | - Yan Sun
- Department of General Surgery, Second Affiliated Hospital of Harbin Medical University, Harbin 150000, Heilongjiang Province, China
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2
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Eddington C, Schwartz JK, Titus MA. filoVision - using deep learning and tip markers to automate filopodia analysis. J Cell Sci 2024; 137:jcs261274. [PMID: 38264939 PMCID: PMC10941656 DOI: 10.1242/jcs.261274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Accepted: 01/09/2024] [Indexed: 01/25/2024] Open
Abstract
Filopodia are slender, actin-filled membrane projections used by various cell types for environment exploration. Analyzing filopodia often involves visualizing them using actin, filopodia tip or membrane markers. Due to the diversity of cell types that extend filopodia, from amoeboid to mammalian, it can be challenging for some to find a reliable filopodia analysis workflow suited for their cell type and preferred visualization method. The lack of an automated workflow capable of analyzing amoeboid filopodia with only a filopodia tip label prompted the development of filoVision. filoVision is an adaptable deep learning platform featuring the tools filoTips and filoSkeleton. filoTips labels filopodia tips and the cytosol using a single tip marker, allowing information extraction without actin or membrane markers. In contrast, filoSkeleton combines tip marker signals with actin labeling for a more comprehensive analysis of filopodia shafts in addition to tip protein analysis. The ZeroCostDL4Mic deep learning framework facilitates accessibility and customization for different datasets and cell types, making filoVision a flexible tool for automated analysis of tip-marked filopodia across various cell types and user data.
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Affiliation(s)
- Casey Eddington
- Department of Genetics, Cell Biology, and Development, University of Minnesota, Minneapolis, MN 55455, USA
- Graduate Program in Biochemistry, Molecular Biology, and Biophysics, University of Minnesota, Minneapolis, MN 55455, USA
| | - Jessica K. Schwartz
- Department of Genetics, Cell Biology, and Development, University of Minnesota, Minneapolis, MN 55455, USA
| | - Margaret A. Titus
- Department of Genetics, Cell Biology, and Development, University of Minnesota, Minneapolis, MN 55455, USA
- Graduate Program in Biochemistry, Molecular Biology, and Biophysics, University of Minnesota, Minneapolis, MN 55455, USA
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3
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Wollscheid HP, Ulrich HD. Chromatin meets the cytoskeleton: the importance of nuclear actin dynamics and associated motors for genome stability. DNA Repair (Amst) 2023; 131:103571. [PMID: 37738698 DOI: 10.1016/j.dnarep.2023.103571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Revised: 09/11/2023] [Accepted: 09/13/2023] [Indexed: 09/24/2023]
Abstract
The actin cytoskeleton is of fundamental importance for numerous cellular processes, including intracellular transport, cell plasticity, and cell migration. However, functions of filamentous actin (F-actin) in the nucleus remain understudied due to the comparatively low abundance of nuclear actin and the resulting experimental limitations to its visualization. Owing to recent technological advances such as super-resolution microscopy and the development of nuclear-specific actin probes, essential roles of the actin cytoskeleton in the context of genome maintenance are now emerging. In addition to the contributions of monomeric actin as a component of multiple important nuclear protein complexes, nuclear actin has been found to undergo polymerization in response to DNA damage and DNA replication stress. Consequently, nuclear F-actin plays important roles in the regulation of intra-nuclear mobility of repair and replication foci as well as the maintenance of nuclear shape, two important aspects of efficient stress tolerance. Beyond actin itself, there is accumulating evidence for the participation of multiple actin-binding proteins (ABPs) in the surveillance of genome integrity, including nucleation factors and motor proteins of the myosin family. Here we summarize recent findings highlighting the importance of actin cytoskeletal factors within the nucleus in key genome maintenance pathways.
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Affiliation(s)
- Hans-Peter Wollscheid
- Institute of Molecular Biology gGmbH (IMB), Ackermannweg 4, Mainz D - 55128, Germany.
| | - Helle D Ulrich
- Institute of Molecular Biology gGmbH (IMB), Ackermannweg 4, Mainz D - 55128, Germany.
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4
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Li Y, Guo Y, Cheng Z, Tian C, Chen Y, Chen R, Yu F, Shi Y, Su F, Zhao S, Wang Z, Luo J, Tan H. Whole-exome sequencing of rectal neuroendocrine tumors. Endocr Relat Cancer 2023; 30:e220257. [PMID: 36645718 PMCID: PMC10450454 DOI: 10.1530/erc-22-0257] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/25/2022] [Accepted: 01/13/2023] [Indexed: 01/17/2023]
Abstract
The genetic characteristics of rectal neuroendocrine tumors (R-NETs) were poorly understood. Depicting the genetic characteristics may provide a biological basis for prognosis prediction and novel treatment development. Tissues of 18 R-NET patients were analyzed using whole-exome sequencing. The median tumor mutation burden (TMB) and microsatellite instability (MSI) were 1.15 Muts/MB (range, 0.03-23.28) and 0.36 (range, 0.00-10.97), respectively. Genes involved in P53 signaling, PI3K-AKT signaling, DNA damage repair, WNT signaling, etc. were frequently altered. Higher TMB (P = 0.078), higher CNV (P = 0.110), somatic mutation of CCDC168 (P = 0.049), HMCN1 (P = 0.040), MYO10 (P = 0.007), and amplification of ZC3H13 (P < 0.001) were associated with shorter OS. Potentially targetable gene alterations (PTGAs) were seen in 72% of the patients. FGFR1 amplification (22%) was the most common PTGA followed by BARD1 and BRCA2 mutation (each 17%). As for gene variations associated with the efficacy of immune checkpoint blockade (ICB), FAT1 alteration (39%) and PTEN depletion (28%) were commonly observed. In conclusion, frequently altered oncogenic pathways might contribute to the development and progression of R-NETs. Gene alterations significantly associated with prognosis might be potential novel targets. Targeted therapy might be a promising strategy as targetable alterations were prevalent in R-NETs. FAT1 alteration and PTEN depletion might be the main genetic alterations influencing the response to ICB besides overall low TMB and MSI in R-NETs.
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Affiliation(s)
- Yuanliang Li
- Department of Integrative Oncology, China-Japan Friendship Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Yiying Guo
- Department of Integrative Oncology, China-Japan Friendship Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Zixuan Cheng
- Department of Integrative Oncology, China-Japan Friendship Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Chao Tian
- Department of Integrative Oncology, China-Japan Friendship Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Yingying Chen
- Department of Integrative Oncology, China-Japan Friendship Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Ruao Chen
- Department of Integrative Oncology, China-Japan Friendship Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Fuhuan Yu
- Department of Integrative Oncology, China-Japan Friendship Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Yanfen Shi
- Department of Pathology, China-Japan Friendship Hospital, Beijing, China
| | - Fei Su
- Department of Integrative Oncology, China-Japan Friendship Hospital, Beijing, China
| | - Shuhua Zhao
- Department of Biological Information Research, HaploX Biotechnology Co., Ltd, Shenzhen, Guangdong, China
| | - Zhizheng Wang
- Academic Department, HaploX Biotechnology, Co., Ltd, Shenzhen, Guangdong, China
| | - Jie Luo
- Department of Pathology, China-Japan Friendship Hospital, Beijing, China
| | - Huangying Tan
- Department of Integrative Oncology, China-Japan Friendship Hospital, Beijing University of Chinese Medicine, Beijing, China
- Department of Integrative Oncology, China-Japan Friendship Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
- Department of Integrative Oncology, China-Japan Friendship Hospital, Beijing, China
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5
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Ostrowska-Podhorodecka Z, Ali A, Norouzi M, Ding I, Abbasi S, Arora PD, Wong THF, Magalhaes M, McCulloch CA. Vimentin-mediated myosin 10 aggregation at tips of cell extensions drives MT1-MMP-dependent collagen degradation in colorectal cancer. FASEB J 2023; 37:e23097. [PMID: 37440280 DOI: 10.1096/fj.202300672r] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 06/09/2023] [Accepted: 07/03/2023] [Indexed: 07/14/2023]
Abstract
Colorectal cancer (CRC) is a high prevalence adenocarcinoma with progressive increases in metastasis-related mortality, but the mechanisms governing the extracellular matrix (ECM) degradation important for metastasis in CRC are not well-defined. We investigated a functional relationship between vimentin (Vim) and myosin 10 (Myo10), and whether this relationship is associated with cancer progression. We tested the hypothesis that Vim regulates the aggregation of Myo10 at the tips of cell extensions, which increases membrane-type 1 matrix metalloproteinase (MT1-MMP)-associated local collagen proteolysis and ECM degradation. Analysis of CRC samples revealed colocalization of Vim with Myo10 and MT1-MMP in cell extensions adjacent to sites of collagen degradation, suggesting an association with local cell invasion. We analyzed cultured CRC cells and fibroblasts and found that Vim accelerates aggregation of Myo10 at cell tips, which increases the cell extension rate. Vim stabilizes the interaction of Myo10 with MT1-MMP, which in turn increases collagenolysis. Vim depletion reduced the aggregation of Myo10 at the cell extension tips and MT1-MMP-dependent collagenolysis. We propose that Vim interacts with Myo10, which in turn associates with MT1-MMP to facilitate the transport of these molecules to the termini of cell extensions and there enhance cancer invasion of soft connective tissues.
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Affiliation(s)
| | - Aiman Ali
- Oral Pathology and Oral Medicine, Faculty of Dentistry, University of Toronto, Toronto, Ontario, Canada
| | - Masoud Norouzi
- Faculty of Dentistry, University of Toronto, Toronto, Ontario, Canada
| | - Isabel Ding
- Faculty of Dentistry, University of Toronto, Toronto, Ontario, Canada
| | - Sevil Abbasi
- Faculty of Dentistry, University of Toronto, Toronto, Ontario, Canada
| | - Pamma D Arora
- Faculty of Dentistry, University of Toronto, Toronto, Ontario, Canada
| | - Timothy H F Wong
- Faculty of Dentistry, University of Toronto, Toronto, Ontario, Canada
| | - Marco Magalhaes
- Oral Pathology and Oral Medicine, Faculty of Dentistry, University of Toronto, Toronto, Ontario, Canada
- Cancer Invasion and Metastasis Laboratory, Faculty of Dentistry, University of Toronto, Toronto, Ontario, Canada
- Dental and Maxillofacial Sciences Department, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
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Tolue Ghasaban F, Maharati A, Akhlaghipour I, Moghbeli M. MicroRNAs as the critical regulators of autophagy-mediated cisplatin response in tumor cells. Cancer Cell Int 2023; 23:80. [PMID: 37098542 PMCID: PMC10127417 DOI: 10.1186/s12935-023-02925-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Accepted: 04/12/2023] [Indexed: 04/27/2023] Open
Abstract
Chemotherapy is one of the most common therapeutic methods in advanced and metastatic tumors. Cisplatin (CDDP) is considered as one of the main first-line chemotherapy drugs in solid tumors. However, there is a high rate of CDDP resistance in cancer patients. Multi-drug resistance (MDR) as one of the main therapeutic challenges in cancer patients is associated with various cellular processes such as drug efflux, DNA repair, and autophagy. Autophagy is a cellular mechanism that protects the tumor cells toward the chemotherapeutic drugs. Therefore, autophagy regulatory factors can increase or decrease the chemotherapy response in tumor cells. MicroRNAs (miRNAs) have a pivotal role in regulation of autophagy in normal and tumor cells. Therefore, in the present review, we discussed the role of miRNAs in CDDP response through the regulation of autophagy. It has been reported that miRNAs mainly increased the CDDP sensitivity in tumor cells by inhibition of autophagy. PI3K/AKT signaling pathway and autophagy-related genes (ATGs) were the main targets of miRNAs in the regulation of autophagy-mediated CDDP response in tumor cells. This review can be an effective step to introduce the miRNAs as efficient therapeutic options to increase autophagy-mediated CDDP sensitivity in tumor cells.
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Affiliation(s)
- Faezeh Tolue Ghasaban
- Department of Medical Genetics and Molecular Medicine, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Amirhosein Maharati
- Student Research Committee, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Iman Akhlaghipour
- Student Research Committee, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Meysam Moghbeli
- Department of Medical Genetics and Molecular Medicine, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
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7
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Zhan XJ, Wang R, Kuang XR, Zhou JY, Hu XL. Elevated expression of myosin VI contributes to breast cancer progression via MAPK/ERK signaling pathway. Cell Signal 2023; 106:110633. [PMID: 36803774 DOI: 10.1016/j.cellsig.2023.110633] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Revised: 02/11/2023] [Accepted: 02/14/2023] [Indexed: 02/19/2023]
Abstract
Breast cancer (BC) is one of the most common malignancies occurring in women worldwide, and its incidence is increasing each year. Accumulating evidence indicated that Myosin VI (MYO6) functions as a gene associated with tumor progression in several cancers. However, the potential role of MYO6 and its underlying mechanisms in the development and progression of BC remains unknown. Herein, we examined the expression levels of MYO6 in BC cells and tissues by western blot and immunohistochemistry. Loss- and gain-of-function investigations in vitro were performed to determine the biological functions of MYO6. And in vivo effects of MYO6 on tumorigenesis were investigated in nude mice. Our findings showed that the expression of MYO6 was up-regulated in breast cancer, and its high expression was correlated with poor prognosis. Further investigation exhibited that silencing the expression of MYO6 significantly inhibited cell proliferation, migration and invasion, whereas overexpression of MYO6 enhanced these abilities in vitro. Also, reduced expression of MYO6 significantly retarded the tumor growth in vivo. Mechanistically, Gene Set Enrichment Analysis (GSEA) revealed that MYO6 was involved in mitogen-activated protein kinase (MAPK) pathway. Moreover, we proved that MYO6 enhanced BC proliferation, migration and invasion via increasing the expression of phosphorylated ERK1/2. Taken together, our findings highlight the role of MYO6 in promoting BC cell progression through MAPK/ERK pathway, suggesting it may be a new potential therapeutic and prognostic target for BC patients.
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Affiliation(s)
- Xiao-Juan Zhan
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, PR China
| | - Rui Wang
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, PR China
| | - Xiong-Ri Kuang
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, PR China
| | - Jue-Yu Zhou
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, PR China.
| | - Xiao-Lei Hu
- Breast Center, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, PR China
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8
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Hassan Ibrahim I, Balah A, Gomaa Abd Elfattah Hassan A, Gamal Abd El-Aziz H. Role of motor proteins in human cancers. Saudi J Biol Sci 2022; 29:103436. [PMID: 36131778 PMCID: PMC9483653 DOI: 10.1016/j.sjbs.2022.103436] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Revised: 08/04/2022] [Accepted: 09/01/2022] [Indexed: 11/30/2022] Open
Abstract
Motor proteins include several protein families (Kinesin, Dynein and Myosin) responsible for intracellular transport, intercellular communication, among other functions. In cancer cells, motor proteins along with microtubules (MT) and other tubulin and actin structures, are crucial for cell proliferation and invasion. The cBioPortal platform for Cancer Genomics database was queried for solid cancers in a combined cohort of 9204 patients with complete cancer genomics data. To assess the importance of motor proteins in cancer, copy number alterations (CNAs) and survival rates were analyzed in the combined dataset. Kinesin, Dynein, and Myosin families showed CNAs in 47%, 49%, and 57 % of patients, respectively, in at least one of their members. Survival analysis showed that CNAs in Kinesin and Dynein, families' genes in the same patients were significantly correlated to decreased overall survival. These results added more evidence to previous literature highlighting the importance of motor proteins as a target in cancer therapy. Kinesin inhibitors could act by several mechanisms such as inhibiting spindle assembly or centrosome separation during mitosis, leading to cell cycle arrest and eventually apoptosis. Dynein inhibitors modulate Dynein's activity and MT binding, inhibiting cell proliferation and invasion. Myosin inhibitors act by stabilizing MT, inducing cell cycle arrest and inhibiting invasiveness. Increasing the specificity of motor proteins targeting drugs could improve cancer therapy and patient survival.
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Affiliation(s)
- Iman Hassan Ibrahim
- Department of Biochemistry and Molecular Biology, Faculty of Pharmacy (Girls), Al-Azhar University, Postal code 11765, Egypt
| | - Amany Balah
- Department of Pharmacology and Toxicology, Faculty of Pharmacy (Girls), Al- Azhar University, Postal code 11765, Egypt
| | - Abrar Gomaa Abd Elfattah Hassan
- Department of Biochemistry and Molecular Biology, Faculty of Pharmacy (Girls), Al-Azhar University, Postal code 11765, Egypt
| | - Heba Gamal Abd El-Aziz
- Department of Biochemistry and Molecular Biology, Faculty of Pharmacy (Girls), Al-Azhar University, Postal code 11765, Egypt
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Peuhu E, Jacquemet G, Scheele CL, Isomursu A, Laisne MC, Koskinen LM, Paatero I, Thol K, Georgiadou M, Guzmán C, Koskinen S, Laiho A, Elo LL, Boström P, Hartiala P, van Rheenen J, Ivaska J. MYO10-filopodia support basement membranes at pre-invasive tumor boundaries. Dev Cell 2022; 57:2350-2364.e7. [DOI: 10.1016/j.devcel.2022.09.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Revised: 08/26/2022] [Accepted: 09/28/2022] [Indexed: 11/03/2022]
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Matsushita K, Kobayashi S, Akita H, Konno M, Asai A, Noda T, Iwagami Y, Asaoka T, Gotoh K, Mori M, Doki Y, Eguchi H, Ishii H. Clinicopathological significance of MYL9 expression in pancreatic ductal adenocarcinoma. Cancer Rep (Hoboken) 2022; 5:e1582. [PMID: 34821071 PMCID: PMC9575502 DOI: 10.1002/cnr2.1582] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 08/31/2021] [Accepted: 10/12/2021] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Pancreatic ductal adenocarcinoma is one of the most aggressive malignancies, and often involves invasion and distant metastasis from the early tumor stages. Myosin II reportedly plays a key role in regulating tumor progression and metastasis. AIMS We examined whether myosin regulatory light polypeptide 9 (MYL9) regulates cancer cell proliferation. METHODS AND RESULTS To investigate the expression pattern and clinical significance of MYL9 in pancreatic ductal adenocarcinoma, we performed immunohistochemical analysis of samples collected from 101 patients with pancreatic ductal adenocarcinoma. The expression of MYL9 was investigated to evaluate its functional role and contribution to proliferation and apoptosis in pancreatic ductal adenocarcinoma cells in vitro. The results showed that MYL9 was predominantly expressed in the cytoplasm and membrane of pancreatic ductal adenocarcinoma cells. Multivariate analysis indicated that MYL9 acted as an independent prognostic factor for overall survival and distant metastasis-free survival. MYL9 expression was strongly associated with malignancy in in vitro analyses, including proliferation and anti-apoptotic activities. CONCLUSIONS Our findings suggest that MYL9 is an independent prognostic factor of pancreatic ductal adenocarcinoma. MYL9 is a crucial biomarker and potential therapeutic target for pancreatic ductal adenocarcinoma.
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Affiliation(s)
- Katsunori Matsushita
- Department of Gastroenterological SurgeryGraduate School of Medicine, Osaka UniversitySuitaOsakaJapan
- Center of Medical Innovation and Translational ResearchGraduate School of Medicine, Osaka UniversitySuitaOsakaJapan
| | - Shogo Kobayashi
- Department of Gastroenterological SurgeryGraduate School of Medicine, Osaka UniversitySuitaOsakaJapan
| | - Hirofumi Akita
- Department of Gastroenterological SurgeryGraduate School of Medicine, Osaka UniversitySuitaOsakaJapan
| | - Masamitsu Konno
- Department of Gastroenterological SurgeryGraduate School of Medicine, Osaka UniversitySuitaOsakaJapan
- Center of Medical Innovation and Translational ResearchGraduate School of Medicine, Osaka UniversitySuitaOsakaJapan
| | - Ayumu Asai
- Center of Medical Innovation and Translational ResearchGraduate School of Medicine, Osaka UniversitySuitaOsakaJapan
- Artificial Intelligence Research CenterThe Institute of Scientific and Industrial Research, Osaka UniversityIbarakiOsakaJapan
- Institute of Scientific and Industrial ResearchOsaka UniversityIbarakiOsakaJapan
| | - Takehiro Noda
- Department of Gastroenterological SurgeryGraduate School of Medicine, Osaka UniversitySuitaOsakaJapan
| | - Yoshifumi Iwagami
- Department of Gastroenterological SurgeryGraduate School of Medicine, Osaka UniversitySuitaOsakaJapan
| | - Tadafumi Asaoka
- Department of Gastroenterological SurgeryGraduate School of Medicine, Osaka UniversitySuitaOsakaJapan
| | - Kunihito Gotoh
- Department of Gastroenterological SurgeryGraduate School of Medicine, Osaka UniversitySuitaOsakaJapan
| | - Masaki Mori
- Department of Gastroenterological SurgeryGraduate School of Medicine, Osaka UniversitySuitaOsakaJapan
- Department of Surgery and ScienceGraduate School of Medical Sciences, Kyushu UniversityFukuokaJapan
| | - Yuichiro Doki
- Department of Gastroenterological SurgeryGraduate School of Medicine, Osaka UniversitySuitaOsakaJapan
- Center of Medical Innovation and Translational ResearchGraduate School of Medicine, Osaka UniversitySuitaOsakaJapan
| | - Hidetoshi Eguchi
- Department of Gastroenterological SurgeryGraduate School of Medicine, Osaka UniversitySuitaOsakaJapan
- Center of Medical Innovation and Translational ResearchGraduate School of Medicine, Osaka UniversitySuitaOsakaJapan
| | - Hideshi Ishii
- Center of Medical Innovation and Translational ResearchGraduate School of Medicine, Osaka UniversitySuitaOsakaJapan
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11
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Ou H, Wang L, Xi Z, Shen H, Jiang Y, Zhou F, Liu Y, Zhou Y. MYO10 contributes to the malignant phenotypes of colorectal cancer via RACK1 by activating integrin/Src/FAK signaling. Cancer Sci 2022; 113:3838-3851. [PMID: 35912545 DOI: 10.1111/cas.15519] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Revised: 07/13/2022] [Accepted: 07/20/2022] [Indexed: 11/28/2022] Open
Abstract
Liver metastases still remain a major cause of colorectal cancer (CRC) patient death. MYO10 is upregulated in several tumor types, however, its significance and the underlying mechanism in CRC is not entirely clear. Here we found that MYO10 was highly expressed in CRC tumor tissues, especially in liver metastasis tissues. MYO10 knockout reduced CRC cell proliferation, invasion, and migration in vitro, and CRC metastasis in vivo. We identified RACK1 by LC-MS/MS and demonstrated that MYO10 interacts with and stabilizes RACK1. Mechanistically, MYO10 promotes CRC cell progression and metastasis via ubiquitination-mediated RACK1 degradation and integrin/Src/FAK signaling activation. Therefore, the MYO10/RACK1/integrin/Src/FAK axis may play an important role in CRC progression and metastasis.
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Affiliation(s)
- Haibin Ou
- Department of Radiation and Medical Oncology, Zhongnan Hospital, Wuhan University, Wuhan, China.,Hubei Key Laboratory of Tumor Biological Behaviors, Zhongnan Hospital, Wuhan University, Wuhan, China
| | - Lili Wang
- Department of Radiation and Medical Oncology, Zhongnan Hospital, Wuhan University, Wuhan, China.,Hubei Key Laboratory of Tumor Biological Behaviors, Zhongnan Hospital, Wuhan University, Wuhan, China
| | - Ziyao Xi
- Department of Radiation and Medical Oncology, Zhongnan Hospital, Wuhan University, Wuhan, China.,Hubei Key Laboratory of Tumor Biological Behaviors, Zhongnan Hospital, Wuhan University, Wuhan, China
| | - Hui Shen
- Department of Radiation and Medical Oncology, Zhongnan Hospital, Wuhan University, Wuhan, China.,Hubei Key Laboratory of Tumor Biological Behaviors, Zhongnan Hospital, Wuhan University, Wuhan, China
| | - Yaofei Jiang
- Department of Radiation and Medical Oncology, Zhongnan Hospital, Wuhan University, Wuhan, China.,Hubei Key Laboratory of Tumor Biological Behaviors, Zhongnan Hospital, Wuhan University, Wuhan, China
| | - Fuxiang Zhou
- Department of Radiation and Medical Oncology, Zhongnan Hospital, Wuhan University, Wuhan, China.,Hubei Key Laboratory of Tumor Biological Behaviors, Zhongnan Hospital, Wuhan University, Wuhan, China
| | - Yu Liu
- Department of Radiation and Medical Oncology, Zhongnan Hospital, Wuhan University, Wuhan, China.,Hubei Key Laboratory of Tumor Biological Behaviors, Zhongnan Hospital, Wuhan University, Wuhan, China
| | - Yunfeng Zhou
- Department of Radiation and Medical Oncology, Zhongnan Hospital, Wuhan University, Wuhan, China.,Hubei Key Laboratory of Tumor Biological Behaviors, Zhongnan Hospital, Wuhan University, Wuhan, China
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12
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Kim SJ, Sun EG, Bae JA, Park S, Hong C, Park Z, Kim H, Kim KK. A peptide interfering with the dimerization of oncogenic KITENIN protein and its stability suppresses colorectal tumour progression. Clin Transl Med 2022; 12:e871. [PMID: 35853101 PMCID: PMC9296036 DOI: 10.1002/ctm2.871] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Revised: 04/20/2022] [Accepted: 04/26/2022] [Indexed: 12/22/2022] Open
Abstract
The stability of a protein, as well as its function and versatility, can be enhanced through oligomerization. KITENIN (KAI1 C-terminal interacting tetraspanin) is known to promote the malignant progression of colorectal cancer (CRC). How KITENIN maintains its structural integrity and stability are largely unknown, however. Here we investigated the mechanisms regulating the stability of KITENIN with the aim of developing therapeutics blocking its oncogenic functions. We found that KITENIN formed a homo-oligomeric complex and that the intracellular C-terminal domain (KITENIN-CTD) was needed for this oligomerization. Expression of the KITENIN-CTD alone interfered with the formation of the KITENIN homodimer, and the amino acid sequence from 463 to 471 within the KITENIN-CTD was the most effective. This sequence coupled with a cell-penetrating peptide was named a KITENIN dimerization-interfering peptide (KDIP). We next studied the mechanisms by which KDIP affected the stability of KITENIN. The KITENIN-interacting protein myosin-X (Myo10), which has oncogenic activity in several cancers, functioned as an effector to stabilize the KITENIN homodimer in the cis formation. Treatment with KDIP resulted in the disintegration of the homodimer via downregulation of Myo10, which led to increased binding of RACK1 to the exposed RACK1-interacting motif (463-471 aa), and subsequent autophagy-dependent degradation of KITENIN and reduced CRC cell invasion. Intravenous injection of KDIP significantly reduced the tumour burden in a syngeneic mouse tumour model and colorectal liver metastasis in an intrasplenic hepatic metastasis model. Collectively, our present results provide a new cancer therapeutic peptide for blocking colorectal liver metastasis, which acts by inducing the downregulation of Myo10 and specifically targeting the stability of the oncogenic KITENIN protein.
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Affiliation(s)
- Sung Jin Kim
- Department of PharmacologyChonnam National University Medical SchoolGwangjuRepublic of Korea
- College of PharmacySunchon National UniversitySuncheonRepublic of Korea
| | - Eun Gene Sun
- Department of PharmacologyChonnam National University Medical SchoolGwangjuRepublic of Korea
| | - Jeong A Bae
- Department of PharmacologyChonnam National University Medical SchoolGwangjuRepublic of Korea
| | - Sehoon Park
- School of Life SciencesGwangju Institute of Science and TechnologyGwangjuRepublic of Korea
| | - Chang‐Soo Hong
- Department of PharmacologyChonnam National University Medical SchoolGwangjuRepublic of Korea
| | - Zee‐Yong Park
- School of Life SciencesGwangju Institute of Science and TechnologyGwangjuRepublic of Korea
| | - Hangun Kim
- College of PharmacySunchon National UniversitySuncheonRepublic of Korea
| | - Kyung Keun Kim
- Department of PharmacologyChonnam National University Medical SchoolGwangjuRepublic of Korea
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13
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Comprehensive Landscape of Prognostic Significance and Immune Characteristics of Myosins in Squamous Cell Carcinoma of the Head and Neck. J Immunol Res 2022; 2022:5501476. [PMID: 35478939 PMCID: PMC9038433 DOI: 10.1155/2022/5501476] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2022] [Revised: 03/26/2022] [Accepted: 03/30/2022] [Indexed: 11/17/2022] Open
Abstract
Myosin superfamily, a large and diverse family of molecular motors important for cell motility and migration, has been illustrated to play contradictory roles during the development of several kinds of tumors. However, the function and prognostic values of MYOs in head and neck squamous cell carcinoma (HNSCC) still remain largely unknown. In the current manuscript, the expression levels and clinical data of MYOs in HNSCC were investigated by online databases, including Oncomine, GEPIA, GEO, TCGA, HPA, UALCAN, Kaplan-Meier plotter, and CancerSEA; we found that the expression levels of MYO1B, MYO5A, and MYO10 were significantly elevated in HNSCC tissues, which were also correlated with the unfavorable overall survival (OS) of the patients. Furthermore, MYO1B/MYO5A/MYO10 interacting genes were identified, and the protein-protein interaction (PPI) networks were constructed by STRING and GeneMANIA. The enrichment analysis revealed that MYO1B/MYO5A/MYO10 associated genes mainly participated in cell metastasis and EMT processes, which were also confirmed by cell functional experiments. At last, the ssGSEA method was conducted to investigate the extent of immune cell infiltration, and we found that both the expression of MYO1B/MYO5A/MYO10 were closely correlated with the infiltration of immune cells in HNSCC. These findings implied that MYO1B, MYO5A, and MYO10 as novel prognostic factors for HNSCC and provided new strategy for HNSCC treatment.
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14
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Mayca Pozo F, Geng X, Tamagno I, Jackson MW, Heimsath EG, Hammer JA, Cheney RE, Zhang Y. MYO10 drives genomic instability and inflammation in cancer. SCIENCE ADVANCES 2021; 7:eabg6908. [PMID: 34524844 PMCID: PMC8443186 DOI: 10.1126/sciadv.abg6908] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Accepted: 07/26/2021] [Indexed: 05/29/2023]
Abstract
Genomic instability is a hallmark of human cancer; yet the underlying mechanisms remain poorly understood. Here, we report that the cytoplasmic unconventional Myosin X (MYO10) regulates genome stability, through which it mediates inflammation in cancer. MYO10 is an unstable protein that undergoes ubiquitin-conjugating enzyme H7 (UbcH7)/β-transducin repeat containing protein 1 (β-TrCP1)–dependent degradation. MYO10 is upregulated in both human and mouse tumors and its expression level predisposes tumor progression and response to immune therapy. Overexpressing MYO10 increased genomic instability, elevated the cyclic GMP-AMP synthase (cGAS)/stimulator of interferon genes (STING)–dependent inflammatory response, and accelerated tumor growth in mice. Conversely, depletion of MYO10 ameliorated genomic instability and reduced the inflammation signaling. Further, inhibiting inflammation or disrupting Myo10 significantly suppressed the growth of both human and mouse breast tumors in mice. Our data suggest that MYO10 promotes tumor progression through inducing genomic instability, which, in turn, creates an immunogenic environment for immune checkpoint blockades.
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Affiliation(s)
- Franklin Mayca Pozo
- Department of Pharmacology, Case Comprehensive Cancer Center, Case Western Reserve University School of Medicine, Cleveland, OH 44106, USA
| | - Xinran Geng
- Department of Pharmacology, Case Comprehensive Cancer Center, Case Western Reserve University School of Medicine, Cleveland, OH 44106, USA
| | - Ilaria Tamagno
- Department of Pathology, Case Comprehensive Cancer Center, Case Western Reserve University School of Medicine, Cleveland, OH 44106, USA
| | - Mark W. Jackson
- Department of Pathology, Case Comprehensive Cancer Center, Case Western Reserve University School of Medicine, Cleveland, OH 44106, USA
| | - Ernest G. Heimsath
- Department of Cell Biology and Physiology, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - John A. Hammer
- Cell and Developmental Biology Center, National Heart, Lung and Blood Institute, Bethesda, MD 20892, USA
| | - Richard E. Cheney
- Department of Cell Biology and Physiology, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Youwei Zhang
- Department of Pharmacology, Case Comprehensive Cancer Center, Case Western Reserve University School of Medicine, Cleveland, OH 44106, USA
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15
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Jia H, Liu M, Wang X, Jiang Q, Wang S, Santhanam RK, Lv C, Zhao Q, Lu J. Cimigenoside functions as a novel γ-secretase inhibitor and inhibits the proliferation or metastasis of human breast cancer cells by γ-secretase/Notch axis. Pharmacol Res 2021; 169:105686. [PMID: 34022397 DOI: 10.1016/j.phrs.2021.105686] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Revised: 05/11/2021] [Accepted: 05/17/2021] [Indexed: 12/14/2022]
Abstract
Breast cancer (BC) occurrence and development tremendously affect female health. Currently breast cancer targeted drugs are still scarce. Natural products have become the main source of targeted drug for breast cancer due to low toxicity and high efficiency. Cimigenoside, natural compound isolated and purified from Cimicifuga dahurica (Turcz.) Maxim has been suggested to utilize for breast cancer treatment, however the mechanism of action has not been elucidated yet. In this article, the antitumor potential of Cimigenoside against breast cancer in vitro and in vivo study. Moreover, we further predicted the possible binding mode of Cimigenoside with γ-secretase through molecular docking studies. The results show that Cimigenoside has a significant inhibitory effect towards the proliferation or metastasis of breast cancer cells via suppressing the Notch signaling pathway-mediated mitochondrial apoptosis and EMT (epithelial mesenchymal transition). In terms of mechanism, Cimigenoside could inhibit the activation of PSEN-1, the catalytic subunit of γ-secretase, and also by cleaving the Notch protein mediated by PSEN-1. Overall, our findings provide scientific support to utilize Cimigenoside as an effective targeted drug for clinical treatment of BC.
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Affiliation(s)
- Hui Jia
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang 110006, PR China.
| | - Mingyue Liu
- Department of Life Science and Biochemistry, Shenyang Pharmaceutical University, Shenyang 110016, PR China.
| | - Xinying Wang
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang 110006, PR China.
| | - Qiyu Jiang
- Center for Clinical Laboratory, The Fifth Medical Center, General Hospital of Chinese PLA, Beijing 100039, PR China.
| | - Shu Wang
- Department of Life Science and Biochemistry, Shenyang Pharmaceutical University, Shenyang 110016, PR China.
| | - Ramesh Kumar Santhanam
- Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, Kuala Nerus 21030, Terengganu, Malaysia.
| | - Chongning Lv
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang 110006, PR China.
| | - Qingchun Zhao
- Department of Life Science and Biochemistry, Shenyang Pharmaceutical University, Shenyang 110016, PR China; Department of Pharmacy, General Hospital of Northern Theater Command, No. 83 Wenhua Road, Shenhe District, Shenyang 110840, Liaoning, PR China.
| | - Jincai Lu
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang 110006, PR China; Liaoning Provincial Key Laboratory of TCM Resources Conservation and Development, Shenyang Pharmaceutical University, Shenyang 110006, PR China.
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16
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Saldías MP, Maureira D, Orellana-Serradell O, Silva I, Lavanderos B, Cruz P, Torres C, Cáceres M, Cerda O. TRP Channels Interactome as a Novel Therapeutic Target in Breast Cancer. Front Oncol 2021; 11:621614. [PMID: 34178620 PMCID: PMC8222984 DOI: 10.3389/fonc.2021.621614] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Accepted: 03/31/2021] [Indexed: 12/14/2022] Open
Abstract
Breast cancer is one of the most frequent cancer types worldwide and the first cause of cancer-related deaths in women. Although significant therapeutic advances have been achieved with drugs such as tamoxifen and trastuzumab, breast cancer still caused 627,000 deaths in 2018. Since cancer is a multifactorial disease, it has become necessary to develop new molecular therapies that can target several relevant cellular processes at once. Ion channels are versatile regulators of several physiological- and pathophysiological-related mechanisms, including cancer-relevant processes such as tumor progression, apoptosis inhibition, proliferation, migration, invasion, and chemoresistance. Ion channels are the main regulators of cellular functions, conducting ions selectively through a pore-forming structure located in the plasma membrane, protein–protein interactions one of their main regulatory mechanisms. Among the different ion channel families, the Transient Receptor Potential (TRP) family stands out in the context of breast cancer since several members have been proposed as prognostic markers in this pathology. However, only a few approaches exist to block their specific activity during tumoral progress. In this article, we describe several TRP channels that have been involved in breast cancer progress with a particular focus on their binding partners that have also been described as drivers of breast cancer progression. Here, we propose disrupting these interactions as attractive and potential new therapeutic targets for treating this neoplastic disease.
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Affiliation(s)
- María Paz Saldías
- Program of Cellular and Molecular Biology, Institute of Biomedical Sciences (ICBM), Faculty of Medicine, Universidad de Chile, Santiago, Chile.,Millennium Nucleus of Ion Channels-Associated Diseases (MiNICAD), Santiago, Chile
| | - Diego Maureira
- Program of Cellular and Molecular Biology, Institute of Biomedical Sciences (ICBM), Faculty of Medicine, Universidad de Chile, Santiago, Chile.,Millennium Nucleus of Ion Channels-Associated Diseases (MiNICAD), Santiago, Chile
| | - Octavio Orellana-Serradell
- Program of Cellular and Molecular Biology, Institute of Biomedical Sciences (ICBM), Faculty of Medicine, Universidad de Chile, Santiago, Chile.,Millennium Nucleus of Ion Channels-Associated Diseases (MiNICAD), Santiago, Chile
| | - Ian Silva
- Program of Cellular and Molecular Biology, Institute of Biomedical Sciences (ICBM), Faculty of Medicine, Universidad de Chile, Santiago, Chile.,Millennium Nucleus of Ion Channels-Associated Diseases (MiNICAD), Santiago, Chile
| | - Boris Lavanderos
- Program of Cellular and Molecular Biology, Institute of Biomedical Sciences (ICBM), Faculty of Medicine, Universidad de Chile, Santiago, Chile.,Millennium Nucleus of Ion Channels-Associated Diseases (MiNICAD), Santiago, Chile
| | - Pablo Cruz
- Program of Cellular and Molecular Biology, Institute of Biomedical Sciences (ICBM), Faculty of Medicine, Universidad de Chile, Santiago, Chile.,Millennium Nucleus of Ion Channels-Associated Diseases (MiNICAD), Santiago, Chile
| | - Camila Torres
- Program of Cellular and Molecular Biology, Institute of Biomedical Sciences (ICBM), Faculty of Medicine, Universidad de Chile, Santiago, Chile.,Millennium Nucleus of Ion Channels-Associated Diseases (MiNICAD), Santiago, Chile
| | - Mónica Cáceres
- Program of Cellular and Molecular Biology, Institute of Biomedical Sciences (ICBM), Faculty of Medicine, Universidad de Chile, Santiago, Chile.,Millennium Nucleus of Ion Channels-Associated Diseases (MiNICAD), Santiago, Chile.,The Wound Repair, Treatment, and Health (WoRTH) Initiative, Santiago, Chile
| | - Oscar Cerda
- Program of Cellular and Molecular Biology, Institute of Biomedical Sciences (ICBM), Faculty of Medicine, Universidad de Chile, Santiago, Chile.,Millennium Nucleus of Ion Channels-Associated Diseases (MiNICAD), Santiago, Chile.,The Wound Repair, Treatment, and Health (WoRTH) Initiative, Santiago, Chile
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17
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Arthur AL, Crawford A, Houdusse A, Titus MA. VASP-mediated actin dynamics activate and recruit a filopodia myosin. eLife 2021; 10:68082. [PMID: 34042588 PMCID: PMC8352590 DOI: 10.7554/elife.68082] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Accepted: 05/20/2021] [Indexed: 11/17/2022] Open
Abstract
Filopodia are thin, actin-based structures that cells use to interact with their environments. Filopodia initiation requires a suite of conserved proteins but the mechanism remains poorly understood. The actin polymerase VASP and a MyTH-FERM (MF) myosin, DdMyo7 in amoeba, are essential for filopodia initiation. DdMyo7 is localized to dynamic regions of the actin-rich cortex. Analysis of VASP mutants and treatment of cells with anti-actin drugs shows that myosin recruitment and activation in Dictyostelium requires localized VASP-dependent actin polymerization. Targeting of DdMyo7 to the cortex alone is not sufficient for filopodia initiation; VASP activity is also required. The actin regulator locally produces a cortical actin network that activates myosin and together they shape the actin network to promote extension of parallel bundles of actin during filopodia formation. This work reveals how filopodia initiation requires close collaboration between an actin-binding protein, the state of the actin cytoskeleton and MF myosin activity.
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Affiliation(s)
- Ashley L Arthur
- Department of Genetics, Cell Biology, and Development, University of Minnesota, Minneapolis, United States
| | - Amy Crawford
- Department of Genetics, Cell Biology, and Development, University of Minnesota, Minneapolis, United States
| | - Anne Houdusse
- Structural Motility, Institut Curie, Paris Université Sciences et Lettres, Sorbonne Université, Paris, France
| | - Margaret A Titus
- Department of Genetics, Cell Biology, and Development, University of Minnesota, Minneapolis, United States
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18
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Abstract
Filopodia, microvilli and stereocilia represent an important group of plasma membrane protrusions. These specialized projections are supported by parallel bundles of actin filaments and have critical roles in sensing the external environment, increasing cell surface area, and acting as mechanosensors. While actin-associated proteins are essential for actin-filament elongation and bundling in these protrusions, myosin motors have a surprising role in the formation and extension of filopodia and stereocilia and in the organization of microvilli. Actin regulators and specific myosins collaborate in controlling the length of these structures. Myosins can transport cargoes along the length of these protrusions, and, in the case of stereocilia and microvilli, interactions with adaptors and cargoes can also serve to anchor adhesion receptors to the actin-rich core via functionally conserved motor-adaptor complexes. This review highlights recent progress in understanding the diverse roles myosins play in filopodia, microvilli and stereocilia.
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Affiliation(s)
- Anne Houdusse
- Structural Motility, Institut Curie, Paris Université Sciences et Lettres, Sorbonne Université, CNRS UMR144, 75005 Paris, France.
| | - Margaret A Titus
- Department of Genetics, Cell Biology, and Development, University of Minnesota, Minneapolis, MN 55455, USA.
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19
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The multiple roles of actin-binding proteins at invadopodia. INTERNATIONAL REVIEW OF CELL AND MOLECULAR BIOLOGY 2021. [PMID: 33962752 DOI: 10.1016/bs.ircmb.2021.03.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2024]
Abstract
Invadopodia are actin-rich membrane protrusions that facilitate cancer cell dissemination by focusing on proteolytic activity and clearing paths for migration through physical barriers, such as basement membranes, dense extracellular matrices, and endothelial cell junctions. Invadopodium formation and activity require spatially and temporally regulated changes in actin filament organization and dynamics. About three decades of research have led to a remarkable understanding of how these changes are orchestrated by sequential recruitment and coordinated activity of different sets of actin-binding proteins. In this chapter, we provide an update on the roles of the actin cytoskeleton during the main stages of invadopodium development with a particular focus on actin polymerization machineries and production of pushing forces driving extracellular matrix remodeling.
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20
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Zhu Y, Ferri-Borgogno S, Sheng J, Yeung TL, Burks JK, Cappello P, Jazaeri AA, Kim JH, Han GH, Birrer MJ, Mok SC, Wong STC. SIO: A Spatioimageomics Pipeline to Identify Prognostic Biomarkers Associated with the Ovarian Tumor Microenvironment. Cancers (Basel) 2021; 13:1777. [PMID: 33917869 PMCID: PMC8068305 DOI: 10.3390/cancers13081777] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Revised: 04/01/2021] [Accepted: 04/02/2021] [Indexed: 01/02/2023] Open
Abstract
Stromal and immune cells in the tumor microenvironment (TME) have been shown to directly affect high-grade serous ovarian cancer (HGSC) malignant phenotypes, however, how these cells interact to influence HGSC patients' survival remains largely unknown. To investigate the cell-cell communication in such a complex TME, we developed a SpatioImageOmics (SIO) pipeline that combines imaging mass cytometry (IMC), location-specific transcriptomics, and deep learning to identify the distribution of various stromal, tumor and immune cells as well as their spatial relationship in TME. The SIO pipeline automatically and accurately segments cells and extracts salient cellular features to identify biomarkers, and multiple nearest-neighbor interactions among tumor, immune, and stromal cells that coordinate to influence overall survival rates in HGSC patients. In addition, SIO integrates IMC data with microdissected tumor and stromal transcriptomes from the same patients to identify novel signaling networks, which would lead to the discovery of novel survival rate-modulating mechanisms in HGSC patients.
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Affiliation(s)
- Ying Zhu
- Center for Modeling Cancer Development, Houston Methodist Cancer Center, Houston Methodist Hospital, Houston, TX 77030, USA; (Y.Z.); (J.S.)
- Departments of Pathology and Laboratory Medicine and Radiology, Houston Methodist Hospital, Weill Cornell Medicine, Houston, TX 77030, USA
| | - Sammy Ferri-Borgogno
- Department of Gynecologic Oncology and Reproductive Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA; (S.F.-B.); (T.-L.Y.); (A.A.J.)
| | - Jianting Sheng
- Center for Modeling Cancer Development, Houston Methodist Cancer Center, Houston Methodist Hospital, Houston, TX 77030, USA; (Y.Z.); (J.S.)
- Departments of Pathology and Laboratory Medicine and Radiology, Houston Methodist Hospital, Weill Cornell Medicine, Houston, TX 77030, USA
| | - Tsz-Lun Yeung
- Department of Gynecologic Oncology and Reproductive Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA; (S.F.-B.); (T.-L.Y.); (A.A.J.)
| | - Jared K. Burks
- Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA;
| | - Paola Cappello
- Department of Molecular Biotechnology and Health Sciences, University of Turin, 10126 Turin, Italy;
| | - Amir A. Jazaeri
- Department of Gynecologic Oncology and Reproductive Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA; (S.F.-B.); (T.-L.Y.); (A.A.J.)
| | - Jae-Hoon Kim
- Department of Obstetrics and Gynecology, Yonsei University College of Medicine, Seoul 03722, Korea; (J.-H.K.); (G.H.H.)
| | - Gwan Hee Han
- Department of Obstetrics and Gynecology, Yonsei University College of Medicine, Seoul 03722, Korea; (J.-H.K.); (G.H.H.)
| | - Michael J. Birrer
- Winthrop P. Rockefeller Cancer Institute, The University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA;
| | - Samuel C. Mok
- Department of Gynecologic Oncology and Reproductive Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA; (S.F.-B.); (T.-L.Y.); (A.A.J.)
| | - Stephen T. C. Wong
- Center for Modeling Cancer Development, Houston Methodist Cancer Center, Houston Methodist Hospital, Houston, TX 77030, USA; (Y.Z.); (J.S.)
- Departments of Pathology and Laboratory Medicine and Radiology, Houston Methodist Hospital, Weill Cornell Medicine, Houston, TX 77030, USA
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21
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Overexpression of Human Syndecan-1 Protects against the Diethylnitrosamine-Induced Hepatocarcinogenesis in Mice. Cancers (Basel) 2021; 13:cancers13071548. [PMID: 33801718 PMCID: PMC8037268 DOI: 10.3390/cancers13071548] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Revised: 03/18/2021] [Accepted: 03/24/2021] [Indexed: 12/20/2022] Open
Abstract
Simple Summary Syndecan-1 is a Janus-faced proteoglycan: depending on the type of cancer, it can promote or inhibit the development of tumors. Our previous in vitro experiments revealed that transfection of human syndecan-1 (hSDC1) into hepatoma cells, initiating hepatocyte-like differentiation. To further confirm the antitumor action of hSDC1 in the context of liver carcinogenesis, mice transgenic for albumin promoter-driven hSDC1 were created with exclusive expression of hSDC1 in the liver. Indeed, hSDC1 interfered with the development of liver cancer in diethylnitrosamine (DEN)-induced hepatocarcinogenesis experiments. The mechanism was found to be related to lipid metabolism that plays an important role in the induction of nonalcoholic liver cirrhosis. Nonalcoholic fatty liver disease is known to promote the development of cancer; therefore, the oncoprotective effect of hSDC1 may be mediated by a beneficial modulation of lipid metabolism. Abstract Although syndecan-1 (SDC1) is known to be dysregulated in various cancer types, its implication in tumorigenesis is poorly understood. Its effect may be detrimental or protective depending on the type of cancer. Our previous data suggest that SDC1 is protective against hepatocarcinogenesis. To further verify this notion, human SDC1 transgenic (hSDC1+/+) mice were generated that expressed hSDC1 specifically in the liver under the control of the albumin promoter. Hepatocarcinogenesis was induced by a single dose of diethylnitrosamine (DEN) at an age of 15 days after birth, which resulted in tumors without cirrhosis in wild-type and hSDC1+/+ mice. At the experimental endpoint, livers were examined macroscopically and histologically, as well as by immunohistochemistry, Western blot, receptor tyrosine kinase array, phosphoprotein array, and proteomic analysis. Liver-specific overexpression of hSDC1 resulted in an approximately six month delay in tumor formation via the promotion of SDC1 shedding, downregulation of lipid metabolism, inhibition of the mTOR and the β-catenin pathways, and activation of the Foxo1 and p53 transcription factors that lead to the upregulation of the cell cycle inhibitors p21 and p27. Furthermore, both of them are implicated in the regulation of intermediary metabolism. Proteomic analysis showed enhanced lipid metabolism, activation of motor proteins, and loss of mitochondrial electron transport proteins as promoters of cancer in wild-type tumors, inhibited in the hSDC1+/+ livers. These complex mechanisms mimic the characteristics of nonalcoholic steatohepatitis (NASH) induced human liver cancer successfully delayed by syndecan-1.
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22
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Ramirez I, Gholkar AA, Velasquez EF, Guo X, Tofig B, Damoiseaux R, Torres JZ. The myosin regulatory light chain Myl5 localizes to mitotic spindle poles and is required for proper cell division. Cytoskeleton (Hoboken) 2021; 78:23-35. [PMID: 33641240 DOI: 10.1002/cm.21654] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 02/23/2021] [Accepted: 02/24/2021] [Indexed: 12/18/2022]
Abstract
Myosins are ATP-dependent actin-based molecular motors critical for diverse cellular processes like intracellular trafficking, cell motility, and cell invasion. During cell division, myosin MYO10 is important for proper mitotic spindle assembly, the anchoring of the spindle to the cortex, and positioning of the spindle to the cell mid-plane. However, myosins are regulated by myosin regulatory light chains (RLCs), and whether RLCs are important for cell division has remained unexplored. Here, we have determined that the previously uncharacterized myosin RLC Myl5 associates with the mitotic spindle and is required for cell division. We show that Myl5 localizes to the leading edge and filopodia during interphase and to mitotic spindle poles and spindle microtubules during early mitosis. Importantly, depletion of Myl5 led to defects in mitotic spindle assembly, chromosome congression, and chromosome segregation and to a slower transition through mitosis. Furthermore, Myl5 bound to MYO10 in vitro and co-localized with MYO10 at the spindle poles. These results suggest that Myl5 is important for cell division and that it may be performing its function through MYO10.
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Affiliation(s)
- Ivan Ramirez
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California, USA
| | - Ankur A Gholkar
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California, USA
| | - Erick F Velasquez
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California, USA
| | - Xiao Guo
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California, USA
| | - Bobby Tofig
- California NanoSystems Institute, Los Angeles, California, USA
| | - Robert Damoiseaux
- California NanoSystems Institute, Los Angeles, California, USA.,Department of Molecular and Medical Pharmacology, Los Angeles, California, USA
| | - Jorge Z Torres
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California, USA.,Molecular Biology Institute, University of California, Los Angeles, California, USA.,Jonsson Comprehensive Cancer Center, University of California, Los Angeles, California, USA
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Myosin Motors: Novel Regulators and Therapeutic Targets in Colorectal Cancer. Cancers (Basel) 2021; 13:cancers13040741. [PMID: 33670106 PMCID: PMC7916823 DOI: 10.3390/cancers13040741] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2021] [Revised: 02/06/2021] [Accepted: 02/08/2021] [Indexed: 12/11/2022] Open
Abstract
Simple Summary Colorectal cancer (CRC) is a deadly disease that may go undiagnosed until it presents at an advanced metastatic stage for which few interventions are available. The development and metastatic spread of CRC is driven by remodeling of the actin cytoskeleton in cancer cells. Myosins represent a large family of actin motor proteins that play key roles in regulating actin cytoskeleton architecture and dynamics. Different myosins can move and cross-link actin filaments, attach them to the membrane organelles and translocate vesicles along the actin filaments. These diverse activities determine the key roles of myosins in regulating cell proliferation, differentiation and motility. Either mutations or the altered expression of different myosins have been well-documented in CRC; however, the roles of these actin motors in colon cancer development remain poorly understood. The present review aims at summarizing the evidence that implicate myosin motors in regulating CRC growth and metastasis and discusses the mechanisms underlying the oncogenic and tumor-suppressing activities of myosins. Abstract Colorectal cancer (CRC) remains the third most common cause of cancer and the second most common cause of cancer deaths worldwide. Clinicians are largely faced with advanced and metastatic disease for which few interventions are available. One poorly understood aspect of CRC involves altered organization of the actin cytoskeleton, especially at the metastatic stage of the disease. Myosin motors are crucial regulators of actin cytoskeletal architecture and remodeling. They act as mechanosensors of the tumor environments and control key cellular processes linked to oncogenesis, including cell division, extracellular matrix adhesion and tissue invasion. Different myosins play either oncogenic or tumor suppressor roles in breast, lung and prostate cancer; however, little is known about their functions in CRC. This review focuses on the functional roles of myosins in colon cancer development. We discuss the most studied class of myosins, class II (conventional) myosins, as well as several classes (I, V, VI, X and XVIII) of unconventional myosins that have been linked to CRC development. Altered expression and mutations of these motors in clinical tumor samples and their roles in CRC growth and metastasis are described. We also evaluate the potential of using small molecular modulators of myosin activity to develop novel anticancer therapies.
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Targeting the cytoskeleton against metastatic dissemination. Cancer Metastasis Rev 2021; 40:89-140. [PMID: 33471283 DOI: 10.1007/s10555-020-09936-0] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/19/2020] [Accepted: 10/08/2020] [Indexed: 02/08/2023]
Abstract
Cancer is a pathology characterized by a loss or a perturbation of a number of typical features of normal cell behaviour. Indeed, the acquisition of an inappropriate migratory and invasive phenotype has been reported to be one of the hallmarks of cancer. The cytoskeleton is a complex dynamic network of highly ordered interlinking filaments playing a key role in the control of fundamental cellular processes, like cell shape maintenance, motility, division and intracellular transport. Moreover, deregulation of this complex machinery contributes to cancer progression and malignancy, enabling cells to acquire an invasive and metastatic phenotype. Metastasis accounts for 90% of death from patients affected by solid tumours, while an efficient prevention and suppression of metastatic disease still remains elusive. This results in the lack of effective therapeutic options currently available for patients with advanced disease. In this context, the cytoskeleton with its regulatory and structural proteins emerges as a novel and highly effective target to be exploited for a substantial therapeutic effort toward the development of specific anti-metastatic drugs. Here we provide an overview of the role of cytoskeleton components and interacting proteins in cancer metastasis with a special focus on small molecule compounds interfering with the actin cytoskeleton organization and function. The emerging involvement of microtubules and intermediate filaments in cancer metastasis is also reviewed.
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Kenchappa RS, Mistriotis P, Wisniewski E, Bhattacharya S, Kulkarni T, West R, Luu A, Conlon M, Heimsath E, Crish JF, Picariello HS, Dovas A, Zarco N, Lara-Velazquez M, Quiñones-Hinojosa A, Hammer JA, Mukhopadhyay D, Cheney RE, Konstantopoulos K, Canoll P, Rosenfeld SS. Myosin 10 Regulates Invasion, Mitosis, and Metabolic Signaling in Glioblastoma. iScience 2020; 23:101802. [PMID: 33299973 PMCID: PMC7702012 DOI: 10.1016/j.isci.2020.101802] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Revised: 10/18/2020] [Accepted: 11/10/2020] [Indexed: 12/30/2022] Open
Abstract
Invasion and proliferation are defining phenotypes of cancer, and in glioblastoma blocking one stimulates the other, implying that effective therapy must inhibit both, ideally through a single target that is also dispensable for normal tissue function. The molecular motor myosin 10 meets these criteria. Myosin 10 knockout mice can survive to adulthood, implying that normal cells can compensate for its loss; its deletion impairs invasion, slows proliferation, and prolongs survival in murine models of glioblastoma. Myosin 10 deletion also enhances tumor dependency on the DNA damage and the metabolic stress responses and induces synthetic lethality when combined with inhibitors of these processes. Our results thus demonstrate that targeting myosin 10 is active against glioblastoma by itself, synergizes with other clinically available therapeutics, may have acceptable side effects in normal tissues, and has potential as a heretofore unexplored therapeutic approach for this disease.
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Affiliation(s)
- Rajappa S. Kenchappa
- Department of Cancer Biology, Mayo Clinic, 4500 San Pablo Road, Jacksonville, FL 32224, USA
| | - Panagiotis Mistriotis
- Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, MD 21218, USA
| | - Emily Wisniewski
- Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, MD 21218, USA
| | - Santanu Bhattacharya
- Departments of Biochemistry and Molecular Biology and Physiology and Biomedical Engineering, Mayo Clinic, Jacksonville, FL 32224, USA
| | - Tanmay Kulkarni
- Departments of Biochemistry and Molecular Biology and Physiology and Biomedical Engineering, Mayo Clinic, Jacksonville, FL 32224, USA
| | - Rita West
- Department of Cancer Biology, Mayo Clinic, 4500 San Pablo Road, Jacksonville, FL 32224, USA
| | - Amanda Luu
- Department of Cancer Biology, Mayo Clinic, 4500 San Pablo Road, Jacksonville, FL 32224, USA
| | - Meghan Conlon
- Department of Cancer Biology, Mayo Clinic, 4500 San Pablo Road, Jacksonville, FL 32224, USA
| | - Ernest Heimsath
- Department of Cell Biology and Physiology, and the Lineberger Comprehensive Cancer Center, University of North Carolina, Chapel Hill, NC 27599, USA
| | - James F. Crish
- Department of Cancer Biology, Lerner Research Institute, Cleveland, OH 44106, USA
| | - Hannah S. Picariello
- Department of Cancer Biology, Lerner Research Institute, Cleveland, OH 44106, USA
| | - Athanassios Dovas
- Department of Pathology and Cell Biology, Columbia University, New York, NY 10032, USA
| | - Natanael Zarco
- Department of Neurosurgery, Mayo Clinic, Jacksonville, FL 32224, USA
| | | | - Alfredo Quiñones-Hinojosa
- Department of Cancer Biology, Mayo Clinic, 4500 San Pablo Road, Jacksonville, FL 32224, USA
- Department of Neurosurgery, Mayo Clinic, Jacksonville, FL 32224, USA
| | - John A. Hammer
- Cell and Developmental Biology Center, National Heart Lung and Blood Institute, NIH, Bethesda, MD 20892, USA
| | - Debrabrata Mukhopadhyay
- Departments of Biochemistry and Molecular Biology and Physiology and Biomedical Engineering, Mayo Clinic, Jacksonville, FL 32224, USA
| | - Richard E. Cheney
- Department of Cell Biology and Physiology, and the Lineberger Comprehensive Cancer Center, University of North Carolina, Chapel Hill, NC 27599, USA
| | | | - Peter Canoll
- Department of Pathology and Cell Biology, Columbia University, New York, NY 10032, USA
| | - Steven S. Rosenfeld
- Department of Cancer Biology, Mayo Clinic, 4500 San Pablo Road, Jacksonville, FL 32224, USA
- Department of Neurosurgery, Mayo Clinic, Jacksonville, FL 32224, USA
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Park H, Kim D, Kim D, Park J, Koh Y, Yoon SS. Truncation of MYH8 tail in AML: a novel prognostic marker with increase cell migration and epithelial-mesenchymal transition utilizing RAF/MAPK pathway. Carcinogenesis 2020; 41:817-827. [PMID: 31430364 DOI: 10.1093/carcin/bgz146] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2019] [Revised: 07/29/2019] [Accepted: 08/18/2019] [Indexed: 12/20/2022] Open
Abstract
MYH8 is an actin-based motor protin involved in integrin-mediated cell adhesion and migration. Heretofore, the association of MYH8 mutation and cancer is unclear. In this study, we investigated the biologic significance of novel MYH8 tail truncation mutation, R1292X, in acute myeloid leukemia (AML) which was discovered by whole-exome sequencing and targeted re-sequencing of 209 AML patients. The patients harboring the mutation all relapsed within 3.8-20.9 months. To explore the functional consequence of the mutation in AML progress, we established knock-in cell lines using CRISPR-Cas9 genome editing. Using the established mutant model, we assessed traits of cancer progress. The mutant cells had improved motility, which was confirmed by immunofluorescence staining, wound healing, transwell migration and adhesion assay. The cell morphology and cell cycle were altered to be accessible to migration and epithelial-to-mesenchymal transition (EMT) transcription factors were also increased. The Raf and p44/42 MAPK pathway was a major regulator of these characteristics proved by a screening of signal transduction and inhibitor assay. Further, a public cancer genome database (cBioPortal) shows that MYH8 tail truncation mutations occurring near the R1292 position of the genome may have a significant function in cancer. In conclusion, truncation of MYH8 could be a novel prognostic marker related to poor prognosis by inducing cell migration and EMT features, and inhibition of the Raf/MAPK pathway would be a therapeutic strategy for AML patients with MYH8 tail truncation.
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Affiliation(s)
- Hyejoo Park
- Cancer Research Institute, Seoul National University College of Medicine, Seoul 03080, Republic of Korea
| | - Daeyoon Kim
- Cancer Research Institute, Seoul National University College of Medicine, Seoul 03080, Republic of Korea
| | - Dongchan Kim
- Cancer Research Institute, Seoul National University College of Medicine, Seoul 03080, Republic of Korea
| | - Jihyun Park
- Cancer Research Institute, Seoul National University College of Medicine, Seoul 03080, Republic of Korea
| | - Youngil Koh
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul National University Hospital, 101, Daehak-ro, Jongno-gu, Seoul 03080, Republic of Korea
| | - Sung-Soo Yoon
- Cancer Research Institute, Seoul National University College of Medicine, Seoul 03080, Republic of Korea.,Department of Internal Medicine, Seoul National University College of Medicine, Seoul National University Hospital, 101, Daehak-ro, Jongno-gu, Seoul 03080, Republic of Korea
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Abstract
Myosins constitute a superfamily of actin-based molecular motor proteins that mediates a variety of cellular activities including muscle contraction, cell migration, intracellular transport, the formation of membrane projections, cell adhesion, and cell signaling. The 12 myosin classes that are expressed in humans share sequence similarities especially in the N-terminal motor domain; however, their enzymatic activities, regulation, ability to dimerize, binding partners, and cellular functions differ. It is becoming increasingly apparent that defects in myosins are associated with diseases including cardiomyopathies, colitis, glomerulosclerosis, neurological defects, cancer, blindness, and deafness. Here, we review the current state of knowledge regarding myosins and disease.
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Lew ZX, Zhou HM, Fang YY, Ye Z, Zhong W, Yang XY, Yu Z, Chen DY, Luo SM, Chen LF, Lin Y. Transgelin interacts with PARP1 in human colon cancer cells. Cancer Cell Int 2020; 20:366. [PMID: 32774160 PMCID: PMC7398379 DOI: 10.1186/s12935-020-01461-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2020] [Accepted: 07/27/2020] [Indexed: 01/13/2023] Open
Abstract
Background Transgelin, an actin-binding protein, is associated with cytoskeleton remodeling. Findings from our previous studies demonstrated that transgelin was up-regulated in node-positive colorectal cancer (CRC) versus node-negative disease. Over-expression of TAGLN affected the expression of 256 downstream transcripts and increased the metastatic potential of colon cancer cells in vitro and in vivo. This study aims to explore the mechanisms through which transgelin participates in the metastasis of colon cancer cells. Methods Immunofluorescence and immunoblotting analysis were used to determine the cellular localization of endogenous and exogenous transgelin in colon cancer cells. Co-immunoprecipitation and subsequently high-performance liquid chromatography/tandem mass spectrometry were performed to identify the proteins that were potentially interacting with transgelin. The 256 downstream transcripts regulated by transgelin were analyzed with bioinformatics methods to discriminate the specific key genes and signaling pathways. The Gene-Cloud of Biotechnology Information (GCBI) tools were used to predict the potential transcription factors (TFs) for the key genes. The predicted TFs corresponded to the proteins identified to interact with transgelin. The interaction between transgelin and the TFs was verified by co-immunoprecipitation and immunofluorescence. Results Transgelin was found to localize in both the cytoplasm and nucleus of the colon cancer cells. Approximately 297 proteins were identified to interact with transgelin. The overexpression of TAGLN led to the differential expression of 184 downstream genes. Network topology analysis discriminated seven key genes, including CALM1, MYO1F, NCKIPSD, PLK4, RAC1, WAS and WIPF1, which are mostly involved in the Rho signaling pathway. Poly (ADP-ribose) polymerase-1 (PARP1) was predicted as the unique TF for the key genes and concurrently corresponded to the DNA-binding proteins potentially interacting with transgelin. The interaction between PARP1 and transgelin in human RKO colon cancer cells was further validated by immunoprecipitation and immunofluorescence assays. Conclusions Our results suggest that transgelin binds to PARP1 and regulates the expression of downstream key genes, which are mainly involved in the Rho signaling pathway, and thus participates in the metastasis of colon cancer.
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Affiliation(s)
- Zhen-Xian Lew
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, No. 107 West Yanjiang Road, Guangzhou, 510120 Guangdong China.,Department of Gastroenterology and Hepatology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, No. 107 West Yanjiang Road, Guangzhou, 510120 Guangdong China.,Department of Surgery, Guangzhou Concord Cancer Center, Guangzhou, 510045 China
| | - Hui-Min Zhou
- Department of Gastroenterology and Hepatology, The First Affiliated Hospital, School of Clinical Medicine of Guangdong Pharmaceutical University, Guangzhou, 510080 China
| | - Yuan-Yuan Fang
- Intensive Care Unit, Tongling People's Hospital, Tongling City, 244000 Anhui province China
| | - Zhen Ye
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, No. 107 West Yanjiang Road, Guangzhou, 510120 Guangdong China.,Department of Gastroenterology and Hepatology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, No. 107 West Yanjiang Road, Guangzhou, 510120 Guangdong China
| | - Wa Zhong
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, No. 107 West Yanjiang Road, Guangzhou, 510120 Guangdong China.,Department of Gastroenterology and Hepatology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, No. 107 West Yanjiang Road, Guangzhou, 510120 Guangdong China
| | - Xin-Yi Yang
- Digestive Medicine Center, The Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen, 518107 China
| | - Zhong Yu
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, No. 107 West Yanjiang Road, Guangzhou, 510120 Guangdong China.,Department of Gastroenterology and Hepatology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, No. 107 West Yanjiang Road, Guangzhou, 510120 Guangdong China
| | - Dan-Yu Chen
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, No. 107 West Yanjiang Road, Guangzhou, 510120 Guangdong China.,Department of Gastroenterology and Hepatology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, No. 107 West Yanjiang Road, Guangzhou, 510120 Guangdong China
| | - Si-Min Luo
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, No. 107 West Yanjiang Road, Guangzhou, 510120 Guangdong China.,Department of Gastroenterology and Hepatology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, No. 107 West Yanjiang Road, Guangzhou, 510120 Guangdong China
| | - Li-Fei Chen
- Department of Nephrology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, 510120 China
| | - Ying Lin
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, No. 107 West Yanjiang Road, Guangzhou, 510120 Guangdong China.,Department of Gastroenterology and Hepatology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, No. 107 West Yanjiang Road, Guangzhou, 510120 Guangdong China
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The Expressions and Mechanisms of Sarcomeric Proteins in Cancers. DISEASE MARKERS 2020; 2020:8885286. [PMID: 32670437 PMCID: PMC7346232 DOI: 10.1155/2020/8885286] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Revised: 06/07/2020] [Accepted: 06/13/2020] [Indexed: 02/07/2023]
Abstract
The sarcomeric proteins control the movement of cells in diverse species, whereas the deregulation can induce tumours in model organisms and occurs in human carcinomas. Sarcomeric proteins are recognized as oncogene and related to tumor cell metastasis. Recent insights into their expressions and functions have led to new cancer therapeutic opportunities. In this review, we appraise the evidence for the sarcomeric proteins as cancer genes and discuss cancer-relevant biological functions, potential mechanisms by which sarcomeric proteins activity is altered in cancer.
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30
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He JH, Chen JG, Zhang B, Chen J, You KL, Hu JM, Xu JW, Chen L. Elevated MYO10 Predicts Poor Prognosis and its Deletion Hampers Proliferation and Migration Potentials of Cells Through Rewiring PI3K/Akt Signaling in Cervical Cancer. Technol Cancer Res Treat 2020; 19:1533033820936773. [PMID: 32618228 PMCID: PMC7336823 DOI: 10.1177/1533033820936773] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
MYO10, recognized as an important regulator of cytoskeleton remodeling, has been
reported to be associated with tumorigenesis. However, its functional
implication in cervical cancer and potential mechanism still remain to be
undetermined currently. MYO10 level in cervical cancer tissues was analyzed by
using data retrieved from The Cancer Genome Atlas and ONCOMINE databases.
Messenger RNA and protein expression levels were determined by quantitative
real-time polymerase chain reaction and Western blotting. Small-interfering RNA
and overexpressing plasmid were used for MYO10 silencing and overexpression, and
cell proliferation was analyzed by CCK-8. Transwell assays were performed to
investigate the ability of cell migration and invasion. MYO10 was upregulated in
cervical cancer tissues and cells when compared to normal controls, and survival
analysis showed patients with high MYO10 expression had worse overall survival.
Moreover, knockdown/overexpression of MYO10 significantly inhibited/enhanced the
proliferation, invasion, and migration capabilities of cervical cells
transfected with siRNAs/overexpressing plasmid. Additionally, MYO10 silencing
inhibited PI3K/Akt signaling pathway by decreasing the phosphorylation status of
PI3K and AKT. Data from the present study indicated that MYO10 were
overexpressed in patients with cervical cancer and positively linked with poor
prognosis. Experimental results suggested that MYO10 induced a significant
encouraging effect in cervical cancer cell proliferation, invasion, and
migration, linked with involvement of PI3K/Akt signaling. Collectively, these
results emphasize a novel role for MYO10 overexpression in cervical cancer and
provide a potent therapeutic strategy against cervical cancer.
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Affiliation(s)
- Jian-Hui He
- Department of gynecology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, China
| | - Jian-Guo Chen
- Department of gynecology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, China
| | - Bin Zhang
- Department of gynecology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, China
| | - Jing Chen
- Department of gynecology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, China
| | - Ke-Li You
- Department of gynecology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, China
| | - Jie-Mei Hu
- Department of gynecology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, China
| | - Jia-Wen Xu
- Department of gynecology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, China
| | - Le Chen
- Department of gynecology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, China
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Summerbell ER, Mouw JK, Bell JSK, Knippler CM, Pedro B, Arnst JL, Khatib TO, Commander R, Barwick BG, Konen J, Dwivedi B, Seby S, Kowalski J, Vertino PM, Marcus AI. Epigenetically heterogeneous tumor cells direct collective invasion through filopodia-driven fibronectin micropatterning. SCIENCE ADVANCES 2020; 6:eaaz6197. [PMID: 32832657 PMCID: PMC7439406 DOI: 10.1126/sciadv.aaz6197] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Accepted: 06/11/2020] [Indexed: 06/11/2023]
Abstract
Tumor heterogeneity drives disease progression, treatment resistance, and patient relapse, yet remains largely underexplored in invasion and metastasis. Here, we investigated heterogeneity within collective cancer invasion by integrating DNA methylation and gene expression analysis in rare purified lung cancer leader and follower cells. Our results showed global DNA methylation rewiring in leader cells and revealed the filopodial motor MYO10 as a critical gene at the intersection of epigenetic heterogeneity and three-dimensional (3D) collective invasion. We further identified JAG1 signaling as a previously unknown upstream activator of MYO10 expression in leader cells. Using live-cell imaging, we found that MYO10 drives filopodial persistence necessary for micropatterning extracellular fibronectin into linear tracks at the edge of 3D collective invasion exclusively in leaders. Our data fit a model where epigenetic heterogeneity and JAG1 signaling jointly drive collective cancer invasion through MYO10 up-regulation in epigenetically permissive leader cells, which induces filopodia dynamics necessary for linearized fibronectin micropatterning.
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Affiliation(s)
| | - Janna K. Mouw
- Department of Hematology and Medical Oncology, Emory University, Atlanta, GA, USA
- Winship Cancer Institute, Emory University, Atlanta, GA, USA
| | - Joshua S. K. Bell
- Graduate Program in Genetics and Molecular Biology, Emory University, Atlanta, GA, USA
| | - Christina M. Knippler
- Department of Hematology and Medical Oncology, Emory University, Atlanta, GA, USA
- Winship Cancer Institute, Emory University, Atlanta, GA, USA
| | - Brian Pedro
- Graduate Program in Cancer Biology, Emory University, Atlanta, GA, USA
| | - Jamie L. Arnst
- Department of Hematology and Medical Oncology, Emory University, Atlanta, GA, USA
- Winship Cancer Institute, Emory University, Atlanta, GA, USA
| | - Tala O. Khatib
- Graduate Program in Biochemistry, Cell and Developmental Biology, Emory University, Atlanta, GA, USA
| | - Rachel Commander
- Graduate Program in Cancer Biology, Emory University, Atlanta, GA, USA
| | - Benjamin G. Barwick
- Department of Hematology and Medical Oncology, Emory University, Atlanta, GA, USA
- Winship Cancer Institute, Emory University, Atlanta, GA, USA
| | - Jessica Konen
- Graduate Program in Cancer Biology, Emory University, Atlanta, GA, USA
| | - Bhakti Dwivedi
- Winship Cancer Institute, Emory University, Atlanta, GA, USA
| | - Sandra Seby
- Winship Cancer Institute, Emory University, Atlanta, GA, USA
| | - Jeanne Kowalski
- Winship Cancer Institute, Emory University, Atlanta, GA, USA
- Department of Biostatistics and Bioinformatics, Emory University, Atlanta, GA, USA
| | - Paula M. Vertino
- Winship Cancer Institute, Emory University, Atlanta, GA, USA
- Department of Radiation Oncology, Emory University, Atlanta, GA, USA
| | - Adam I. Marcus
- Department of Hematology and Medical Oncology, Emory University, Atlanta, GA, USA
- Winship Cancer Institute, Emory University, Atlanta, GA, USA
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Differential functions of ERK1 and ERK2 in lung metastasis processes in triple-negative breast cancer. Sci Rep 2020; 10:8537. [PMID: 32444778 PMCID: PMC7244517 DOI: 10.1038/s41598-020-65250-3] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Accepted: 04/27/2020] [Indexed: 12/18/2022] Open
Abstract
Triple-negative breast cancer (TNBC) is an aggressive form of breast cancer characterized by metastasis, drug resistance and high rates of recurrence. With a lack or targeted therapies, TNBC is challenging to treat and carries a poor prognosis. Patients with TNBC tumors expressing high levels of ERK2 have a poorer prognosis than those with low ERK2-expressing tumors. The MAPK pathway is often found to be highly activated in TNBC, however the precise functions of the ERK isoforms (ERK1 and ERK2) in cancer progression have not been well defined. We hypothesized that ERK2, but not ERK1, promotes the cancer stem cell (CSC) phenotype and metastasis in TNBC. Stable knockdown clones of the ERK1 and ERK2 isoforms were generated in SUM149 and BT549 TNBC cells using shRNA lentiviral vectors. ERK2 knockdown significantly inhibited anchorage-independent colony formation and mammosphere formation, indicating compromised self-renewal capacity. This effect correlated with a reduction in migration and invasion. SCID-beige mice injected via the tail vein with ERK clones were employed to determine metastatic potential. SUM149 shERK2 cells had a significantly lower lung metastatic burden than control mice or mice injected with SUM149 shERK1 cells. The Affymetrix HGU133plus2 microarray platform was employed to identify gene expression changes in ERK isoform knockdown clones. Comparison of gene expression levels between SUM149 cells with ERK2 or ERK1 knockdown revealed differential and in some cases opposite effects on mRNA expression levels. Those changes associated with ERK2 knockdown predominantly altered regulation of CSCs and metastasis. Our findings indicate that ERK2 promotes metastasis and the CSC phenotype in TNBC.
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Sun YY, Bradley JM, Keller KE. Phenotypic and Functional Alterations in Tunneling Nanotubes Formed by Glaucomatous Trabecular Meshwork Cells. Invest Ophthalmol Vis Sci 2020; 60:4583-4595. [PMID: 31675075 PMCID: PMC6827425 DOI: 10.1167/iovs.19-28084] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
Purpose Trabecular meshwork (TM) cells detect and coordinate responses to intraocular pressure (IOP) in the eye. TM cells become dysfunctional in glaucoma where IOP is often elevated. Recently, we showed that normal TM (NTM) cells communicate by forming tubular connections called tunneling nanotubes (TNTs). Here, we investigated TNTs in glaucomatous TM (GTM) cells. Methods Primary GTM and NTM cells were established from cadaver eyes. Transfer of Vybrant DiO and DiD-labeled vesicles via TNT connections was measured. Imaris software measured the number and length of cell protrusions from immunofluorescent confocal images. Live-cell imaging of the actin cytoskeleton was performed. The distribution of myosin-X, a regulator of TNTs/filopodia, was investigated in TM cells and tissue. Results GTM cells contained significantly more transferred fluorescent vesicles than NTM cells (49.6% vs. 35%). Although NTM cells had more protrusions at the cell surface than GTM cells (7.61 vs. 4.65 protrusions/cell), GTM protrusions were significantly longer (12.1 μm vs. 9.76 μm). Live-cell imaging demonstrated that the GTM actin cytoskeleton was less dynamic, and vesicle transfer between cells was significantly slower than NTM cells. Furthermore, rearrangement of the actin cortex adjacent to the TNT may influence TNT formation. Myosin-X immunostaining was punctate and disorganized in GTM cells and tissue compared to age-matched NTM controls. Conclusions Together, our data demonstrate that GTM cells have phenotypic and functional differences in their TNTs. Significantly slower vesicle transfer via TNTs in GTM cells may delay the timely propagation of cellular signals when pressures become elevated in glaucoma.
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Affiliation(s)
- Ying Ying Sun
- Casey Eye Institute, Oregon Health & Science University, Portland, Oregon, United States
| | - John M Bradley
- Casey Eye Institute, Oregon Health & Science University, Portland, Oregon, United States
| | - Kate E Keller
- Casey Eye Institute, Oregon Health & Science University, Portland, Oregon, United States
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Klingler-Hoffmann M, Mittal P, Hoffmann P. The Emerging Role of Cytoskeletal Proteins as Reliable Biomarkers. Proteomics 2019; 19:e1800483. [PMID: 31525818 DOI: 10.1002/pmic.201800483] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Revised: 07/12/2019] [Indexed: 12/26/2022]
Abstract
Cytoskeletal proteins are essential building blocks of cells. More than 100 cytoskeletal and cytoskeleton-associated proteins are known and for some, their function and regulation are understood in great detail. Apart from cell shape and support, they facilitate many processes such as intracellular signaling and transport, and cancer related processes such as proliferation, migration, and invasion. During the last decade, comparative proteomic studies have identified cytoskeletal proteins as in vitro markers for tumor progression and metastasis. Here, these results are summarized and a number of unrelated studies are highlighted, identifying the same cytoskeletal proteins as potential biomarkers. These findings might indicate that the abundance of these potential markers of tumor progression is associated with the biological outcome and are independent of the cancer origin. This correlates well with recently published results from the Cancer Genome Atlas, indicating that cancers show remarkable similarities in their analyzed molecular information, independent of their organ of origin. It is postulated that the quantification of cytoskeletal proteins in healthy tissues, tumors, in adjacent tissues, and in stroma, is a great source of molecular information, which might not only be used to classify tumors, but more importantly to predict patients' outcome or even best treatment choices.
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Affiliation(s)
- Manuela Klingler-Hoffmann
- Future Industries Institute, University of South Australia, Mawson Lakes Campus, Mawson Lakes, 5095, Australia
| | - Parul Mittal
- Adelaide Proteomics Centre, School of Biological Sciences, University of Adelaide, Adelaide, 5005, Australia
| | - Peter Hoffmann
- Future Industries Institute, University of South Australia, Mawson Lakes Campus, Mawson Lakes, 5095, Australia
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Zhang X, Fang Q, Ma Y, Zou S, Liu Q, Wang H. Protease activated receptor 2 mediates tryptase-induced cell migration through MYO10 in colorectal cancer. Am J Cancer Res 2019; 9:1995-2006. [PMID: 31598400 PMCID: PMC6780659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Accepted: 04/18/2019] [Indexed: 06/10/2023] Open
Abstract
MYO10 is an actin-based motor protein and correlates with cancer metastasis. However, the regulation of MYO10 by tumor microenvironment is unknown. In the current study, we found that the expression of protease activated receptor 2 (PAR2) was highly correlated with that of MYO10 in colorectal carcinoma (CRC) specimens. Both MYO10 and PAR2 were up-regulated in lymph node metastasis group compared with non-metastasis group. Activation of PAR2 significantly induced cell migration through the up-regulation of MYO10, which was mediated by repression of miR-204 in multiple cell lines. Interestingly, it was observed that tryptase was highly expressed in adjacent tissue around primary tumor of CRC. Furthermore, tryptase stimulated cell migration and up-regulated MYO10 expression through a PAR2-dependent manner. Taken together, our findings showed that PAR2 enhanced the expression of MYO10 through the repression of miR-204. PAR2 mediated tryptase-induced cell migration and might contribute to the invasion of cancer cells at the edge of tumor.
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Affiliation(s)
- Xiaoli Zhang
- State Key Laboratory of Molecular Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing 100021, China
| | - Qing Fang
- Department of Pathology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing 100021, China
| | - Yiming Ma
- State Key Laboratory of Molecular Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing 100021, China
| | - Shuangmei Zou
- Department of Pathology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing 100021, China
| | - Qian Liu
- Department of Colorectal Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing 100021, China
| | - Hongying Wang
- State Key Laboratory of Molecular Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing 100021, China
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Zhang D, Baldwin P, Leal AS, Carapellucci S, Sridhar S, Liby KT. A nano-liposome formulation of the PARP inhibitor Talazoparib enhances treatment efficacy and modulates immune cell populations in mammary tumors of BRCA-deficient mice. Am J Cancer Res 2019; 9:6224-6238. [PMID: 31534547 PMCID: PMC6735511 DOI: 10.7150/thno.36281] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2019] [Accepted: 07/22/2019] [Indexed: 12/28/2022] Open
Abstract
Two recently approved PARP inhibitors provide an important new therapeutic option for patients with BRCA-mutated metastatic breast cancer. PARP inhibitors significantly prolong progression-free survival in patients, but conventional oral delivery of PARP inhibitors is hindered by limited bioavailability and off-target toxicities, thus compromising the therapeutic benefits and quality of life for patients. Here, we developed a new delivery system, in which the PARP inhibitor Talazoparib is encapsulated in the bilayer of a nano-liposome, to overcome these limitations. Methods: Nano-Talazoparib (NanoTLZ) was characterized both in vitro and in vivo. The therapeutic efficacy and toxicity of Nano-Talazoparib (NanoTLZ) were evaluated in BRCA-deficient mice. The regulation of NanoTLZ on gene transcription and immunomodulation were further investigated in spontaneous BRCA-deficient tumors. Results: NanoTLZ significantly (p<0.05) prolonged the overall survival of BRCA-deficient mice compared to all of the other experimental groups, including saline control, empty nanoparticles, and free Talazoparib groups (oral and i.v.). Moreover, NanoTLZ was better tolerated than treatment with free Talazoparib, with no significant weight lost or alopecia as was observed with the free drug. After 5 doses, NanoTLZ altered the expression of over 140 genes and induced DNA damage, cell cycle arrest and inhibition of cell proliferation in the tumor. In addition, NanoTLZ favorably modulated immune cell populations in vivo and significantly (p<0.05) decreased the percentage of myeloid derived suppressor cells in both the tumor and spleen compared to control groups. Conclusions: Our results demonstrate that delivering nanoformulated Talazoparib not only enhances treatment efficacy but also reduces off-target toxicities in BRCA-deficient mice; the same potential is predicted for patients with BRCA-deficient breast cancer.
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38
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Alieva NO, Efremov AK, Hu S, Oh D, Chen Z, Natarajan M, Ong HT, Jégou A, Romet-Lemonne G, Groves JT, Sheetz MP, Yan J, Bershadsky AD. Myosin IIA and formin dependent mechanosensitivity of filopodia adhesion. Nat Commun 2019; 10:3593. [PMID: 31399564 PMCID: PMC6689027 DOI: 10.1038/s41467-019-10964-w] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2017] [Accepted: 06/07/2019] [Indexed: 12/21/2022] Open
Abstract
Filopodia, dynamic membrane protrusions driven by polymerization of an actin filament core, can adhere to the extracellular matrix and experience both external and cell-generated pulling forces. The role of such forces in filopodia adhesion is however insufficiently understood. Here, we study filopodia induced by overexpression of myosin X, typical for cancer cells. The lifetime of such filopodia positively correlates with the presence of myosin IIA filaments at the filopodia bases. Application of pulling forces to the filopodia tips through attached fibronectin-coated laser-trapped beads results in sustained growth of the filopodia. Pharmacological inhibition or knockdown of myosin IIA abolishes the filopodia adhesion to the beads. Formin inhibitor SMIFH2, which causes detachment of actin filaments from formin molecules, produces similar effect. Thus, centripetal force generated by myosin IIA filaments at the base of filopodium and transmitted to the tip through actin core in a formin-dependent fashion is required for filopodia adhesion.
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Affiliation(s)
- N O Alieva
- Mechanobiology Institute, National University of Singapore, T-lab, 5A Engineering Drive 1, Singapore, 117411, Singapore
| | - A K Efremov
- Mechanobiology Institute, National University of Singapore, T-lab, 5A Engineering Drive 1, Singapore, 117411, Singapore.,Center for BioImaging Sciences, National University of Singapore, 14 Science Drive 4, Singapore, 117557, Singapore
| | - S Hu
- Mechanobiology Institute, National University of Singapore, T-lab, 5A Engineering Drive 1, Singapore, 117411, Singapore
| | - D Oh
- Mechanobiology Institute, National University of Singapore, T-lab, 5A Engineering Drive 1, Singapore, 117411, Singapore
| | - Z Chen
- Mechanobiology Institute, National University of Singapore, T-lab, 5A Engineering Drive 1, Singapore, 117411, Singapore.,Department of Chemistry, University of California, Berkeley, CA, 94720, USA
| | - M Natarajan
- Mechanobiology Institute, National University of Singapore, T-lab, 5A Engineering Drive 1, Singapore, 117411, Singapore
| | - H T Ong
- Mechanobiology Institute, National University of Singapore, T-lab, 5A Engineering Drive 1, Singapore, 117411, Singapore
| | - A Jégou
- Institut Jacques Monod, CNRS, Université de Paris, 15 rue Helene Brion, F-75013, Paris, France
| | - G Romet-Lemonne
- Institut Jacques Monod, CNRS, Université de Paris, 15 rue Helene Brion, F-75013, Paris, France
| | - J T Groves
- Mechanobiology Institute, National University of Singapore, T-lab, 5A Engineering Drive 1, Singapore, 117411, Singapore.,Department of Chemistry, University of California, Berkeley, CA, 94720, USA
| | - M P Sheetz
- Mechanobiology Institute, National University of Singapore, T-lab, 5A Engineering Drive 1, Singapore, 117411, Singapore.,Department of Biological Sciences, Columbia University, New York, NY, 10027, USA
| | - J Yan
- Mechanobiology Institute, National University of Singapore, T-lab, 5A Engineering Drive 1, Singapore, 117411, Singapore.,Center for BioImaging Sciences, National University of Singapore, 14 Science Drive 4, Singapore, 117557, Singapore.,Department of Physics, National University of Singapore, Singapore, 117542, Singapore
| | - A D Bershadsky
- Mechanobiology Institute, National University of Singapore, T-lab, 5A Engineering Drive 1, Singapore, 117411, Singapore. .,Weizmann Institute of Science, Herzl St 234, Rehovot, 7610001, Israel.
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Sun YY, Yang YF, Keller KE. Myosin-X Silencing in the Trabecular Meshwork Suggests a Role for Tunneling Nanotubes in Outflow Regulation. Invest Ophthalmol Vis Sci 2019; 60:843-851. [PMID: 30807639 PMCID: PMC6390986 DOI: 10.1167/iovs.18-26055] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Purpose The actin cytoskeleton plays a key role in outflow regulation through the trabecular meshwork (TM). Although actin stress fibers are a target of glaucoma therapies, the role of other actin cellular structures is unclear. Myosin-X (Myo10) is an actin-binding protein that is involved in tunneling nanotube (TNT) and filopodia formation. Here, we inhibited Myo10 pharmacologically or by gene silencing to investigate the role of filopodia/TNTs in the TM. Methods Short hairpin RNA interference (RNAi) silencing lentivirus targeting myosin-X (shMyo10) was generated. Human anterior segments were perfused with shMyo10 or CK-666, an Arp2/3 inhibitor. Confocal microscopy investigated the colocalization of Myo10 with matrix metalloproteinase (MMPs). Western immunoblotting investigated the protein levels of MMPs and extracellular matrix (ECM) proteins. MMP activity and phagocytosis assays were performed. Results CK-666 and shMyo10-silencing lentivirus caused a significant reduction in outflow rates in anterior segment perfusion culture, an ex vivo method to study intraocular pressure regulation. In human TM cells, Myo10 colocalized with MMP2, MMP14, and cortactin in podosome-like structures, which function as regions of focal ECM degradation. Furthermore, MMP activity, thrombospondin-1 and SPARC protein levels were significantly reduced in the media of CK-666-treated and shMyo10-silenced TM cells. However, neither Myo10 silencing or CK-666 treatment significantly affected phagocytic uptake. Conclusions Inhibiting filopodia/TNTs caused opposite effects on outflow compared with inhibiting stress fibers. Moreover, Myo10 may also play a role in focal ECM degradation in TM cells. Our results provide additional insight into the function of actin supramolecular assemblies and actin-binding proteins in outflow regulation.
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Affiliation(s)
- Ying Ying Sun
- Casey Eye Institute, Oregon Health & Science University, Portland, Oregon, United States
| | - Yong-Feng Yang
- Casey Eye Institute, Oregon Health & Science University, Portland, Oregon, United States
| | - Kate E Keller
- Casey Eye Institute, Oregon Health & Science University, Portland, Oregon, United States
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40
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Wang B, Pan JX, Yu H, Xiong L, Zhao K, Xiong S, Guo JP, Lin S, Sun D, Zhao L, Guo H, Mei L, Xiong WC. Lack of Myosin X Enhances Osteoclastogenesis and Increases Cell Surface Unc5b in Osteoclast-Lineage Cells. J Bone Miner Res 2019; 34:939-954. [PMID: 30645777 PMCID: PMC7105956 DOI: 10.1002/jbmr.3667] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Revised: 12/23/2018] [Accepted: 01/05/2019] [Indexed: 01/08/2023]
Abstract
Normal bone mass is maintained by balanced bone formation and resorption. Myosin X (Myo10), an unconventional "myosin tail homology 4-band 4.1, ezrin, radixin, moesin" (MyTH4-FERM) domain containing myosin, is implicated in regulating osteoclast (OC) adhesion, podosome positioning, and differentiation in vitro. However, evidence is lacking for Myo10 in vivo function. Here we show that mice with Myo10 loss of function, Myo10m/m , exhibit osteoporotic deficits, which are likely due to the increased OC genesis and bone resorption because bone formation is unchanged. Similar deficits are detected in OC-selective Myo10 conditional knockout (cko) mice, indicating a cell autonomous function of Myo10. Further mechanistic studies suggest that Unc-5 Netrin receptor B (Unc5b) protein levels, in particular its cell surface level, are higher in the mutant OCs, but lower in RAW264.7 cells or HEK293 cells expressing Myo10. Suppressing Unc5b expression in bone marrow macrophages (BMMs) from Myo10m/m mice by infection with lentivirus of Unc5b shRNA markedly impaired RANKL-induced OC genesis. Netrin-1, a ligand of Unc5b, increased RANKL-induced OC formation in BMMs from both wild-type and Myo10m/m mice. Taken together, these results suggest that Myo10 plays a negative role in OC formation, likely by inhibiting Unc5b cell-surface targeting, and suppressing Netrin-1 promoted OC genesis. © 2019 American Society for Bone and Mineral Research.
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Affiliation(s)
- Bo Wang
- Department of Neurosciences, School of Medicine, Case Western Reserve University, Cleveland, OH, USA.,Louis Stokes Cleveland Veterans Affairs Medical Center, Cleveland, OH, USA.,Department of Neuroscience and Regenerative Medicine, Medical College of Georgia, Augusta University, Augusta, GA, USA.,Department of Orthopaedic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Jin-Xiu Pan
- Department of Neurosciences, School of Medicine, Case Western Reserve University, Cleveland, OH, USA.,Louis Stokes Cleveland Veterans Affairs Medical Center, Cleveland, OH, USA.,Department of Neuroscience and Regenerative Medicine, Medical College of Georgia, Augusta University, Augusta, GA, USA
| | - Huali Yu
- Department of Neurosciences, School of Medicine, Case Western Reserve University, Cleveland, OH, USA.,Department of Neuroscience and Regenerative Medicine, Medical College of Georgia, Augusta University, Augusta, GA, USA.,Key laboratory of Molecular Epigenetics of Ministry of Education, Institute of Cytology and Genetics, Northeast Normal University, Changchun, Jilin, China
| | - Lei Xiong
- Department of Neurosciences, School of Medicine, Case Western Reserve University, Cleveland, OH, USA.,Louis Stokes Cleveland Veterans Affairs Medical Center, Cleveland, OH, USA.,Department of Neuroscience and Regenerative Medicine, Medical College of Georgia, Augusta University, Augusta, GA, USA
| | - Kai Zhao
- Department of Neurosciences, School of Medicine, Case Western Reserve University, Cleveland, OH, USA.,Department of Neuroscience and Regenerative Medicine, Medical College of Georgia, Augusta University, Augusta, GA, USA
| | - Shan Xiong
- Department of Neuroscience and Regenerative Medicine, Medical College of Georgia, Augusta University, Augusta, GA, USA
| | - Jun-Peng Guo
- Department of Neuroscience and Regenerative Medicine, Medical College of Georgia, Augusta University, Augusta, GA, USA
| | - Sen Lin
- Department of Neuroscience and Regenerative Medicine, Medical College of Georgia, Augusta University, Augusta, GA, USA
| | - Dong Sun
- Department of Neurosciences, School of Medicine, Case Western Reserve University, Cleveland, OH, USA.,Louis Stokes Cleveland Veterans Affairs Medical Center, Cleveland, OH, USA
| | - Lu Zhao
- Department of Neurosciences, School of Medicine, Case Western Reserve University, Cleveland, OH, USA.,Department of Neuroscience and Regenerative Medicine, Medical College of Georgia, Augusta University, Augusta, GA, USA.,Key laboratory of Molecular Epigenetics of Ministry of Education, Institute of Cytology and Genetics, Northeast Normal University, Changchun, Jilin, China
| | - Haohan Guo
- Department of Neurosciences, School of Medicine, Case Western Reserve University, Cleveland, OH, USA.,Louis Stokes Cleveland Veterans Affairs Medical Center, Cleveland, OH, USA.,Department of Neuroscience and Regenerative Medicine, Medical College of Georgia, Augusta University, Augusta, GA, USA
| | - Lin Mei
- Department of Neurosciences, School of Medicine, Case Western Reserve University, Cleveland, OH, USA.,Louis Stokes Cleveland Veterans Affairs Medical Center, Cleveland, OH, USA.,Department of Neuroscience and Regenerative Medicine, Medical College of Georgia, Augusta University, Augusta, GA, USA
| | - Wen-Cheng Xiong
- Department of Neurosciences, School of Medicine, Case Western Reserve University, Cleveland, OH, USA.,Louis Stokes Cleveland Veterans Affairs Medical Center, Cleveland, OH, USA.,Department of Neuroscience and Regenerative Medicine, Medical College of Georgia, Augusta University, Augusta, GA, USA
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Caporizzo MA, Fishman CE, Sato O, Jamiolkowski RM, Ikebe M, Goldman YE. The Antiparallel Dimerization of Myosin X Imparts Bundle Selectivity for Processive Motility. Biophys J 2019; 114:1400-1410. [PMID: 29590597 DOI: 10.1016/j.bpj.2018.01.038] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2017] [Revised: 01/26/2018] [Accepted: 01/30/2018] [Indexed: 02/06/2023] Open
Abstract
Myosin X is an unconventional actin-based molecular motor involved in filopodial formation, microtubule-actin filament interaction, and cell migration. Myosin X is an important component of filopodia regulation, localizing to tips of growing filopodia by an unclear targeting mechanism. The native α-helical dimerization domain of myosin X is thought to associate with antiparallel polarity of the two amino acid chains, making myosin X the only myosin that is currently considered to form antiparallel dimers. This study aims to determine if antiparallel dimerization of myosin X imparts selectivity toward actin bundles by comparing the motility of parallel and antiparallel dimers of myosin X on single and fascin-bundled actin filaments. Antiparallel myosin X dimers exhibit selective processivity on fascin-bundled actin and are only weakly processive on single actin filaments below saturating [ATP]. Artificial forced parallel dimers of myosin X are robustly processive on both single and bundled actin, exhibiting no selectivity. To determine the relationship between gating of the reaction steps and observed differences in motility, a mathematical model was developed to correlate the parameters of motility with the biochemical and mechanical kinetics of the dimer. Results from the model, constrained by experimental data, suggest that the probability of binding forward, toward the barbed end of the actin filament, is lower in antiparallel myosin X on single actin filaments compared to fascin-actin bundles and compared to constructs of myosin X with parallel dimerization.
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Affiliation(s)
- Matthew A Caporizzo
- Department of Physiology, Pennsylvania Muscle Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Claire E Fishman
- Department of Physiology, Pennsylvania Muscle Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Osamu Sato
- Department of Cellular and Molecular Biology, University of Texas Science Center, Tyler, Texas
| | - Ryan M Jamiolkowski
- Department of Physiology, Pennsylvania Muscle Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Mitsuo Ikebe
- Department of Cellular and Molecular Biology, University of Texas Science Center, Tyler, Texas
| | - Yale E Goldman
- Department of Physiology, Pennsylvania Muscle Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania.
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Abstract
PI3K is activated in over 60% of human cancers, mediating C-terminal p27 phosphorylation. This work reveals cooperation between PI3K and cJun pathways: p27 phosphorylation by PI3K-activated kinases stimulates p27/cJun corecruitment to chromatin and activation of transcription programs of cell adhesion, motility, TGFB2, and epithelial–mesenchymal transformation to drive tumor progression. Prior analysis showed that high p27pT157 strongly associates with activated AKTpS273 and p90RSKpT359 in human breast cancers. These cancers also differentially express p27/cJun target genes and identify a poor prognostic group. In cancers, the cell cycle-restraining effects of p27 are lost through increased proteolysis and decreased translation. We reveal a previously unknown oncogenic action of p27, in which p27 acts as a cJun coactivator to drive oncogenic gene expression programs. p27 shifts from CDK inhibitor to oncogene when phosphorylated by PI3K effector kinases. Here, we show that p27 is a cJun coregulator, whose assembly and chromatin association is governed by p27 phosphorylation. In breast and bladder cancer cells with high p27pT157pT198 or expressing a CDK-binding defective p27pT157pT198 phosphomimetic (p27CK−DD), cJun is activated and interacts with p27, and p27/cJun complexes localize to the nucleus. p27/cJun up-regulates TGFB2 to drive metastasis in vivo. Global analysis of p27 and cJun chromatin binding and gene expression shows that cJun recruitment to many target genes is p27 dependent, increased by p27 phosphorylation, and activates programs of epithelial–mesenchymal transformation and metastasis. Finally, human breast cancers with high p27pT157 differentially express p27/cJun-regulated genes of prognostic relevance, supporting the biological significance of the work.
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EMT is associated with an epigenetic signature of ECM remodeling genes. Cell Death Dis 2019; 10:205. [PMID: 30814494 PMCID: PMC6393505 DOI: 10.1038/s41419-019-1397-4] [Citation(s) in RCA: 77] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2018] [Revised: 12/13/2018] [Accepted: 12/17/2018] [Indexed: 12/20/2022]
Abstract
Type III epithelial–mesenchymal transition (EMT) has been previously associated with increased cell migration, invasion, metastasis, and therefore cancer aggressiveness. This reversible process is associated with an important gene expression reprogramming mainly due to epigenetic plasticity. Nevertheless, most of the studies describing the central role of epigenetic modifications during EMT were performed in a single-cell model and using only one mode of EMT induction. In our study, we studied the overall modulations of gene expression and epigenetic modifications in four different EMT-induced cell models issued from different tissues and using different inducers of EMT. Pangenomic analysis (transcriptome and ChIP–sequencing) validated our hypothesis that gene expression reprogramming during EMT is largely regulated by epigenetic modifications of a wide range of genes. Indeed, our results confirmed that each EMT model is unique and can be associated with a specific transcriptome profile and epigenetic program. However, we could select some genes or pathways that are similarly regulated in the different models and that could therefore be used as a common signature of all EMT models and become new biomarkers of the EMT phenotype. As an example, we can cite the regulation of gene-coding proteins involved in the degradation of the extracellular matrix (ECM), which are highly induced in all EMT models. Based on our investigations and results, we identified ADAM19 as a new biomarker of in vitro and in vivo EMT and we validated this biological new marker in a cohort of non-small lung carcinomas.
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Discovering proteins for chemoprevention and chemotherapy by curcumin in liver fluke infection-induced bile duct cancer. PLoS One 2018; 13:e0207405. [PMID: 30440021 PMCID: PMC6237386 DOI: 10.1371/journal.pone.0207405] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Accepted: 10/30/2018] [Indexed: 12/17/2022] Open
Abstract
Modulation or prevention of protein changes during the cholangiocarcinoma (CCA) process induced by Opisthorchis viverrini (Ov) infection may become a key strategy for prevention and treatment of CCA. Monitoring of such changes could lead to discovery of protein targets for CCA treatment. Curcumin exerts anti-inflammatory and anti-CCA activities partly through its protein-modulatory ability. To support the potential use of curcumin and to discover novel target molecules for CCA treatment, we used a quantitative proteomic approach to investigate the effects of curcumin on protein changes in an Ov-induced CCA-harboring hamster model. Isobaric labelling and tandem mass spectrometry were used to compare the protein expression profiles of liver tissues from CCA hamsters with or without curcumin dietary supplementation. Among the dysregulated proteins, five were upregulated in liver tissues of CCA hamsters but markedly downregulated in the CCA hamsters supplemented with curcumin: S100A6, lumican, plastin-2, 14-3-3 zeta/delta and vimentin. Western blot and immunohistochemical analyses also showed similar expression patterns of these proteins in liver tissues of hamsters in the CCA and CCA + curcumin groups. Proteins such as clusterin and S100A10, involved in the NF-κB signaling pathway, an important signaling cascade involved in CCA genesis, were also upregulated in CCA hamsters and were then suppressed by curcumin treatment. Taken together, our results demonstrate the important changes in the proteome during the genesis of O. viverrini-induced CCA and provide an insight into the possible protein targets for prevention and treatment of this cancer.
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45
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Powers N, Srivastava A. The Air Sac Primordium of Drosophila: A Model for Invasive Development. Int J Mol Sci 2018; 19:ijms19072074. [PMID: 30018198 PMCID: PMC6073991 DOI: 10.3390/ijms19072074] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2018] [Revised: 07/11/2018] [Accepted: 07/12/2018] [Indexed: 12/29/2022] Open
Abstract
The acquisition of invasive properties preceding tumor metastasis is critical for cancer progression. This phenomenon may result from mutagenic disruption of typical cell function, but recent evidence suggests that cancer cells frequently co-opt normal developmental programs to facilitate invasion as well. The signaling cascades that have been implicated present an obstacle to identifying effective therapeutic targets because of their complex nature and modulatory capacity through crosstalk with other pathways. Substantial efforts have been made to study invasive behavior during organogenesis in several organisms, but another model found in Drosophilamelanogaster has not been thoroughly explored. The air sac primordium (ASP) appears to be a suitable candidate for investigating the genes and morphogens required for invasion due to the distinct overlap in the events that occur during its normal growth and the development of metastatic tumor cells. Among these events are the conversion of larval cells in the trachea into a population of mitotically active cells, reduced cell–cell contact along the leading edge of the ASP, and remodeling of the extracellular matrix (ECM) that surrounds the structure. Here, we summarize the development of ASPs and invasive behavior observed therein.
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Affiliation(s)
- Nathan Powers
- Department of Biology and Biotechnology Center, Western Kentucky University, 1906 College Heights Boulevard, TCCW 351, Bowling Green, KY 42101, USA.
| | - Ajay Srivastava
- Department of Biology and Biotechnology Center, Western Kentucky University, 1906 College Heights Boulevard, TCCW 351, Bowling Green, KY 42101, USA.
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46
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Tokuo H, Bhawan J, Coluccio LM. Myosin X is required for efficient melanoblast migration and melanoma initiation and metastasis. Sci Rep 2018; 8:10449. [PMID: 29993000 PMCID: PMC6041326 DOI: 10.1038/s41598-018-28717-y] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2017] [Accepted: 06/15/2018] [Indexed: 12/20/2022] Open
Abstract
Myosin X (Myo10), an actin-associated molecular motor, has a clear role in filopodia induction and cell migration in vitro, but its role in vivo in mammals is not well understood. Here, we investigate the role of Myo10 in melanocyte lineage and melanoma induction. We found that Myo10 knockout (Myo10KO) mice exhibit a white spot on their belly caused by reduced melanoblast migration. Myo10KO mice crossed with available mice that conditionally express in melanocytes the BRAFV600E mutation combined with Pten silencing exhibited reduced melanoma development and metastasis, which extended medial survival time. Knockdown of Myo10 (Myo10kd) in B16F1 mouse melanoma cell lines decreased lung colonization after tail-vein injection. Myo10kd also inhibited long protrusion (LP) formation by reducing the transportation of its cargo molecule vasodilator-stimulated phosphoprotein (VASP) to the leading edge of migrating cells. These findings provide the first genetic evidence for the involvement of Myo10 not only in melanoblast migration, but also in melanoma development and metastasis.
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Affiliation(s)
- Hiroshi Tokuo
- Department of Physiology & Biophysics, Boston University School of Medicine, Boston, MA, 02118, USA.
| | - Jag Bhawan
- Department of Dermatology, Boston University School of Medicine, Boston, MA, 02118, USA
| | - Lynne M Coluccio
- Department of Physiology & Biophysics, Boston University School of Medicine, Boston, MA, 02118, USA
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Wang X, Li J, Xu X, Zheng J, Li Q. miR-129 inhibits tumor growth and potentiates chemosensitivity of neuroblastoma by targeting MYO10. Biomed Pharmacother 2018; 103:1312-1318. [PMID: 29864913 DOI: 10.1016/j.biopha.2018.04.153] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2017] [Revised: 04/11/2018] [Accepted: 04/23/2018] [Indexed: 12/12/2022] Open
Abstract
Although the treatment strategies for neuroblastoma (NB) develop rapidly, a considerable number of patients could not benefit from chemotherapy. Here, we revealed a miR-129-MYO10 axis that regulated neuroblastoma growth and chemosensitivity. Mechanistically, MYO10 was up-regulated in neuroblastoma tissues and associated with poor overall survival. While overexpression of MYO10 enhanced tumor growth, genetic inhibition of MYO10 led to growth-inhibitory and chemopotentiating effects in neuroblastoma. MYO10 was further identified as a target of miR-129. Our data showed that miR-129 down-regulated MYO10 expression and subsequently suppressed cell growth. Re-expression of MYO10 significantly rescued miR129-mediated proliferation repression and chemosensitivity. In conclusion, our results demonstrated that miR-129 inhibited neuroblastoma growth and potentiated chemosensitivity by targeting MYO10, which may represent promising targets and rational therapeutic options for neuroblastoma.
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Affiliation(s)
- Xiqian Wang
- Department of Orthopedic Surgery, The Second Hospital of Shandong University, Jinan, China
| | - Jing Li
- Department of Urology, First People's Hospital of Jinan City, Jinan, China
| | - Xiao Xu
- Community Clinic of First people's Hospital of Jinan, Jinan, China
| | - Jiachun Zheng
- Department of Orthopedic Surgery, The Second Hospital of Shandong University, Jinan, China
| | - Qingbo Li
- Department of Orthopedic Surgery, The Second Hospital of Shandong University, Jinan, China.
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Chen J, Wu X, Xing Z, Ma C, Xiong W, Zhu X, He X. FOXG1 Expression Is Elevated in Glioma and Inhibits Glioma Cell Apoptosis. J Cancer 2018; 9:778-783. [PMID: 29581755 PMCID: PMC5868141 DOI: 10.7150/jca.22282] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2017] [Accepted: 12/24/2017] [Indexed: 01/04/2023] Open
Abstract
FOXG1, a member of forkhead family transcriptional factor, is involved in telencephalon development. Recent studies showed FOXG1 was important for a variety of cellular events in cancer cells. In respect to glioma, FOXG1 has been shown to regulate cell proliferation and cell cycles. However, its impacts on other cellular events were not well studied. Here, we found FOXG1 had high expression in clinical glioma tissues, and its expression positively correlated with glioma malignancy. Moreover, we found FOXG1 played roles in glioma cell apoptosis. The expressions of caspase family members were significantly altered in response to change of FOXG1 expression, indicating a direct regulation of FOXG1 on caspase family members. These data strongly suggest FOXG1 is negative regulator of glioma cell apoptosis.
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Affiliation(s)
- Jingying Chen
- Key Laboratory of Molecular Epigenetics of Ministry of Education, Institute of Cytology and Genetics, Northeast Normal University, Changchun, China
| | - Xinmin Wu
- Department of Neurosurgery, First Hospital of Jilin University, Changchun, China
| | - Zhenkai Xing
- Key Laboratory of Molecular Epigenetics of Ministry of Education, Institute of Cytology and Genetics, Northeast Normal University, Changchun, China
| | - Chi Ma
- Key Laboratory of Molecular Epigenetics of Ministry of Education, Institute of Cytology and Genetics, Northeast Normal University, Changchun, China
| | - Wencheng Xiong
- Department of Neuroscience and Regenerative Medicine and Department of Neurology, Medical College of Georgia, Augusta University, USA
| | - Xiaojuan Zhu
- Key Laboratory of Molecular Epigenetics of Ministry of Education, Institute of Cytology and Genetics, Northeast Normal University, Changchun, China
| | - Xiaoxiao He
- Key Laboratory of Molecular Epigenetics of Ministry of Education, Institute of Cytology and Genetics, Northeast Normal University, Changchun, China
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Li YR, Yang WX. Myosins as fundamental components during tumorigenesis: diverse and indispensable. Oncotarget 2018; 7:46785-46812. [PMID: 27121062 PMCID: PMC5216836 DOI: 10.18632/oncotarget.8800] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2016] [Accepted: 04/10/2016] [Indexed: 12/11/2022] Open
Abstract
Myosin is a kind of actin-based motor protein. As the crucial functions of myosin during tumorigenesis have become increasingly apparent, the profile of myosin in the field of cancer research has also been growing. Eighteen distinct classes of myosins have been discovered in the past twenty years and constitute a diverse superfamily. Various myosins share similar structures. They all convert energy from ATP hydrolysis to exert mechanical stress upon interactions with microfilaments. Ongoing research is increasingly suggesting that at least seven kinds of myosins participate in the formation and development of cancer. Myosins play essential roles in cytokinesis failure, chromosomal and centrosomal amplification, multipolar spindle formation and DNA microsatellite instability. These are all prerequisites of tumor formation. Subsequently, myosins activate various processes of tumor invasion and metastasis development including cell migration, adhesion, protrusion formation, loss of cell polarity and suppression of apoptosis. In this review, we summarize the current understanding of the roles of myosins during tumorigenesis and discuss the factors and mechanisms which may regulate myosins in tumor progression. Furthermore, we put forward a completely new concept of “chromomyosin” to demonstrate the pivotal functions of myosins during karyokinesis and how this acts to optimize the functions of the members of the myosin superfamily.
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Affiliation(s)
- Yan-Ruide Li
- The Sperm Laboratory, College of Life Sciences, Zhejiang University, Hangzhou, China
| | - Wan-Xi Yang
- The Sperm Laboratory, College of Life Sciences, Zhejiang University, Hangzhou, China
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