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Prasad P, Billah Khair AM, Venkatesan K, Shahwan M, Shamsi A. Molecular and functional insight into focal adhesion kinases: Therapeutic implications for oral malignancies. Drug Discov Today 2024; 29:103852. [PMID: 38070702 DOI: 10.1016/j.drudis.2023.103852] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 11/21/2023] [Accepted: 12/05/2023] [Indexed: 12/18/2023]
Abstract
Oral carcinoma is the sixth most common cancer globally, with one death occurring every hour. Focal adhesion kinase (FAK) is an intercellular protein tyrosine kinase, a key indicator of the development of oral cancer. FAK overexpression leads to the initiation and significant progression of metastasis in head and neck cancers, indicating its vital role in cancer progression and potential as a biomarker for early oral malignant transformation. The present review elaborates on FAK's function in oral malignancies since it could serve as a biomarker of the initial stages of oral malignant transformation and a possible predictive factor for risk assessment.
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Affiliation(s)
- Prathibha Prasad
- Basic Medical and Dental Sciences Department, College of Dentistry, Ajman University, Ajman, United Arab Emirates; Center of Medical and Bio-allied Health Sciences Research, Ajman University, Ajman, United Arab Emirates
| | - Al-Moutassem Billah Khair
- Basic Medical and Dental Sciences Department, College of Dentistry, Ajman University, Ajman, United Arab Emirates; Center of Medical and Bio-allied Health Sciences Research, Ajman University, Ajman, United Arab Emirates
| | - Kumar Venkatesan
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Khalid University, Abha 62529, Saudi Arabia
| | - Moyad Shahwan
- Center of Medical and Bio-allied Health Sciences Research, Ajman University, Ajman, United Arab Emirates; College of Pharmacy and Health Sciences, Ajman University, Ajman, United Arab Emirates
| | - Anas Shamsi
- Center of Medical and Bio-allied Health Sciences Research, Ajman University, Ajman, United Arab Emirates.
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Lo HC, Hua WJ, Yeh H, Lin ZH, Huang LC, Ciou YR, Ruan R, Lin KF, Tseng AJ, Wu ATH, Hsu WH, Chao CH, Lin TY. GMI, a Ganoderma microsporum protein, abolishes focal adhesion network to reduce cell migration and metastasis of lung cancer. Life Sci 2023; 335:122255. [PMID: 37967792 DOI: 10.1016/j.lfs.2023.122255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Revised: 11/02/2023] [Accepted: 11/06/2023] [Indexed: 11/17/2023]
Abstract
BACKGROUND Cancer metastasis is a major cause of cancer-related deaths, emphasizing the urgent need for effective therapies. Although it has been shown that GMI, a fungal protein from Ganoderma microsporum, could suppress primary tumor growth in a wide spectrum of cancer types, it is still unclear whether GMI exhibits anti-metastasis properties, particularly in lung cancers. Further investigation is needed. AIMS AND OBJECTIVES The objective of this study is to investigate the potential inhibitory effects of GMI on lung cancer metastasis in vivo. Utilizing systematic and comprehensive approaches, our research aims to elucidate the underlying molecular mechanisms responsible for the anti-metastatic effects. MATERIALS AND METHODS In vitro migration and cell adhesion assays addressed the epithelial-to-mesenchymal transition (EMT)-related phenotype. Proteomic and bioinformatic analyses identified the GMI-regulated proteins and cellular responses. GMI-treated LLC1-bearing mice were analyzed using IVIS Spectrum to assess the anti-metastatic effect. KEY FINDINGS GMI inhibits EMT as well as cell migration. GMI disrupts cell adhesion and downregulates integrin, resulting in inhibition of phosphorylated FAK. GMI induces macropinocytosis and lysosome-mediated degradation of integrin αv, α5, α6 and β1. GMI downregulates Slug via inhibition of FAK activity, which in turn enhances expressions of epithelial-related markers and decreases cell mobility. Mechanistically, GMI-induced FAK inhibition engenders MDM2 expression and enhances MDM2/p21/Slug complex formation, leading to Slug degradation. GMI treatment reduces the metastatic pulmonary lesion and prolongs the survival of LLC1-bearing mice. SIGNIFICANCE Our findings highlight GMI as a promising therapeutic candidate for metastatic lung cancers, offering potential avenues for further research and drug development.
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Affiliation(s)
- Hung-Chih Lo
- Institute of Traditional Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan; Program in Molecular Medicine, National Yang Ming Chiao Tung University and Academia Sinica, Taipei, Taiwan
| | - Wei-Jyun Hua
- Institute of Traditional Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan; Program in Molecular Medicine, National Yang Ming Chiao Tung University and Academia Sinica, Taipei, Taiwan
| | - Hsin Yeh
- Institute of Traditional Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Zhi-Hu Lin
- Institute of Traditional Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Li-Chen Huang
- Institute of Traditional Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Yi-Ru Ciou
- Institute of Traditional Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Runcheng Ruan
- Institute of Traditional Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Kai-Fan Lin
- Institute of Traditional Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Ai-Jung Tseng
- Institute of Traditional Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Alexander T H Wu
- The Ph.D. Program for Translational Medicine, College of Medical Science & Technology, Taipei Medical University, Taipei Taiwan
| | - Wei-Hung Hsu
- Institute of Traditional Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan; LO-Sheng Hospital Ministry of Health and Welfare, Taipei, Taiwan; School of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei, Taiwan
| | - Chi-Hong Chao
- Department of Biological Science and Technology, National Yang Ming Chiao Tung University, Hsinchu, Taiwan; Center For Intelligent Drug Systems and Smart Bio-devices (IDS(2)B), National Yang Ming Chiao Tung University, Hsinchu, Taiwan
| | - Tung-Yi Lin
- Institute of Traditional Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan; Program in Molecular Medicine, National Yang Ming Chiao Tung University and Academia Sinica, Taipei, Taiwan; Biomedical Industry Ph.D. Program, National Yang Ming Chiao Tung University, Taipei, Taiwan.
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Cai P, Feng N, Zou H, Gu J, Liu X, Liu Z, Yuan Y, Bian J. Zearalenone damages the male reproductive system of rats by destroying testicular focal adhesion. Environ Toxicol 2023; 38:278-288. [PMID: 36288102 DOI: 10.1002/tox.23694] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Revised: 10/04/2022] [Accepted: 10/13/2022] [Indexed: 06/16/2023]
Abstract
Zearalenone (ZEA), a common mycotoxin in animal feed, is harmful to public health and causes huge economic losses. The potential target proteins of ZEA and its derivatives were screened using the PharmMapper database and the related genes (proteins) of the testis were obtained from Genecards. We obtained 144 potential targets of ZEA and its derivatives related to the testis using Venn diagrams. The PPI analysis showed that ZEA had the most targets in testis, followed by ZAN, α-ZAL, β-ZEL, α-ZEL, and β-ZAL. Kyoto Encyclopedia of Genes and Genomes (KEGG) and Gene Ontology (GO) analyses evaluated the metabolic and cancer pathways. We further screened four hub genes: RAC3, CCND1, EP300, and CTNNB1. Eight key biological processes were obtained by GO analysis, and four important pathways were identified by KEGG analysis. Animal and cell experimental results confirmed that ZEA could inhibit the expression of four key KEGG pathway protein components and four hub proteins that interfere with cell adhesion by inhibiting the focal adhesion structure of the testis, Leydig cells, and Sertoli cells. Collectively, our findings reveal that the destruction of the focal adhesion structure in the testis is the mechanism through which ZEA damages the male reproductive system.
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Affiliation(s)
- Peirong Cai
- College of Veterinary Medicine, Yangzhou University, Yangzhou, China
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education of China, Yangzhou University, Yangzhou, China
| | - Nannan Feng
- College of Veterinary Medicine, Yangzhou University, Yangzhou, China
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, China
| | - Hui Zou
- College of Veterinary Medicine, Yangzhou University, Yangzhou, China
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, China
| | - Jianhong Gu
- College of Veterinary Medicine, Yangzhou University, Yangzhou, China
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, China
| | - Xuezhong Liu
- College of Veterinary Medicine, Yangzhou University, Yangzhou, China
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, China
| | - Zongping Liu
- College of Veterinary Medicine, Yangzhou University, Yangzhou, China
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education of China, Yangzhou University, Yangzhou, China
| | - Yan Yuan
- College of Veterinary Medicine, Yangzhou University, Yangzhou, China
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, China
| | - Jianchun Bian
- College of Veterinary Medicine, Yangzhou University, Yangzhou, China
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education of China, Yangzhou University, Yangzhou, China
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Lee HN, Hyeon SJ, Kim H, Sim KM, Kim Y, Ju J, Lee J, Wang Y, Ryu H, Seong J. Decreased FAK activity and focal adhesion dynamics impair proper neurite formation of medium spiny neurons in Huntington's disease. Acta Neuropathol 2022; 144:521-536. [PMID: 35857122 DOI: 10.1007/s00401-022-02462-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Revised: 06/11/2022] [Accepted: 06/25/2022] [Indexed: 11/29/2022]
Abstract
Huntington's disease (HD) is a neurodegenerative disorder caused by a polyglutamine expansion in the protein huntingtin (HTT) [55]. While the final pathological consequence of HD is the neuronal cell death in the striatum region of the brain, it is still unclear how mutant HTT (mHTT) causes synaptic dysfunctions at the early stage and during the progression of HD. Here, we discovered that the basal activity of focal adhesion kinase (FAK) is severely reduced in a striatal HD cell line, a mouse model of HD, and the human post-mortem brains of HD patients. In addition, we observed with a FRET-based FAK biosensor [59] that neurotransmitter-induced FAK activation is decreased in HD striatal neurons. Total internal reflection fluorescence (TIRF) imaging revealed that the reduced FAK activity causes the impairment of focal adhesion (FA) dynamics, which further leads to the defect in filopodial dynamics causing the abnormally increased number of immature neurites in HD striatal neurons. Therefore, our results suggest that the decreased FAK and FA dynamics in HD impair the proper formation of neurites, which is crucial for normal synaptic functions [52]. We further investigated the molecular mechanism of FAK inhibition in HD and surprisingly discovered that mHTT strongly associates with phosphatidylinositol 4,5-biphosphate, altering its normal distribution at the plasma membrane, which is crucial for FAK activation [14, 60]. Therefore, our results provide a novel molecular mechanism of FAK inhibition in HD along with its pathological mechanism for synaptic dysfunctions during the progression of HD.
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Affiliation(s)
- Hae Nim Lee
- Brain Science Institute, Korea Institute of Science and Technology (KIST), Seoul, 02792, Republic of Korea
- Department of Converging Science and Technology, Kyung Hee University, Seoul, 02453, Republic of Korea
| | - Seung Jae Hyeon
- Brain Science Institute, Korea Institute of Science and Technology (KIST), Seoul, 02792, Republic of Korea
| | - Heejung Kim
- Brain Science Institute, Korea Institute of Science and Technology (KIST), Seoul, 02792, Republic of Korea
- Department of Converging Science and Technology, Kyung Hee University, Seoul, 02453, Republic of Korea
| | - Kyoung Mi Sim
- Brain Science Institute, Korea Institute of Science and Technology (KIST), Seoul, 02792, Republic of Korea
| | - Yunha Kim
- Brain Science Institute, Korea Institute of Science and Technology (KIST), Seoul, 02792, Republic of Korea
| | - Jeongmin Ju
- Brain Science Institute, Korea Institute of Science and Technology (KIST), Seoul, 02792, Republic of Korea
- Division of Bio-Medical Science & Technology, KIST School, Korea University of Science and Technology, Seoul, 02792, Republic of Korea
| | - Junghee Lee
- Department of Neurology, Boston University Alzheimer's Disease Center, Boston University School of Medicine, Boston, MA, 02118, USA
| | - Yingxiao Wang
- Department of Bioengineering, University of California, San Diego, CA, 92093, USA
| | - Hoon Ryu
- Brain Science Institute, Korea Institute of Science and Technology (KIST), Seoul, 02792, Republic of Korea.
| | - Jihye Seong
- Brain Science Institute, Korea Institute of Science and Technology (KIST), Seoul, 02792, Republic of Korea.
- Department of Converging Science and Technology, Kyung Hee University, Seoul, 02453, Republic of Korea.
- Division of Bio-Medical Science & Technology, KIST School, Korea University of Science and Technology, Seoul, 02792, Republic of Korea.
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Li H, Prever L, Hsu MY, Lo W, Margaria JP, De Santis MC, Zanini C, Forni M, Novelli F, Pece S, Di Fiore PP, Porporato PE, Martini M, Belabed H, Nazare M, Haucke V, Gulluni F, Hirsch E. Phosphoinositide Conversion Inactivates R-RAS and Drives Metastases in Breast Cancer. Adv Sci (Weinh) 2022; 9:e2103249. [PMID: 35098698 PMCID: PMC8948670 DOI: 10.1002/advs.202103249] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Revised: 11/03/2021] [Indexed: 05/05/2023]
Abstract
Breast cancer is the most prevalent cancer and a major cause of death in women worldwide. Although early diagnosis and therapeutic intervention significantly improve patient survival rate, metastasis still accounts for most deaths. Here it is reported that, in a cohort of more than 2000 patients with breast cancer, overexpression of PI3KC2α occurs in 52% of cases and correlates with high tumor grade as well as increased probability of distant metastatic events, irrespective of the subtype. Mechanistically, it is demonstrated that PI3KC2α synthetizes a pool of PI(3,4)P2 at focal adhesions that lowers their stability and directs breast cancer cell migration, invasion, and metastasis. PI(3,4)P2 locally produced by PI3KC2α at focal adhesions recruits the Ras GTPase activating protein 3 (RASA3), which inactivates R-RAS, leading to increased focal adhesion turnover, migration, and invasion both in vitro and in vivo. Proof-of-concept is eventually provided that inhibiting PI3KC2α or lowering RASA3 activity at focal adhesions significantly reduces the metastatic burden in PI3KC2α-overexpressing breast cancer, thereby suggesting a novel strategy for anti-breast cancer therapy.
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Affiliation(s)
- Huayi Li
- Department of Molecular Biotechnology and Health SciencesUniversity of TurinTurin10126Italy
| | - Lorenzo Prever
- Department of Molecular Biotechnology and Health SciencesUniversity of TurinTurin10126Italy
| | - Myriam Y. Hsu
- Department of Molecular Biotechnology and Health SciencesUniversity of TurinTurin10126Italy
| | - Wen‐Ting Lo
- Leibniz‐Forschungsinstitut für Molekulare Pharmakologie (FMP)Berlin13125Germany
| | - Jean Piero Margaria
- Department of Molecular Biotechnology and Health SciencesUniversity of TurinTurin10126Italy
| | - Maria Chiara De Santis
- Department of Molecular Biotechnology and Health SciencesUniversity of TurinTurin10126Italy
| | - Cristina Zanini
- Department of Molecular Biotechnology and Health SciencesUniversity of TurinTurin10126Italy
| | - Marco Forni
- Department of Molecular Biotechnology and Health SciencesUniversity of TurinTurin10126Italy
| | - Francesco Novelli
- Department of Molecular Biotechnology and Health SciencesUniversity of TurinTurin10126Italy
| | - Salvatore Pece
- IEOEuropean Institute of Oncology IRCCSVia Ripamonti 435Milan20141Italy
- Department of Oncology and Hemato‐OncologyUniversità degli Studi di MilanoMilano20142Italy
| | - Pier Paolo Di Fiore
- IEOEuropean Institute of Oncology IRCCSVia Ripamonti 435Milan20141Italy
- Department of Oncology and Hemato‐OncologyUniversità degli Studi di MilanoMilano20142Italy
| | - Paolo Ettore Porporato
- Department of Molecular Biotechnology and Health SciencesUniversity of TurinTurin10126Italy
| | - Miriam Martini
- Department of Molecular Biotechnology and Health SciencesUniversity of TurinTurin10126Italy
| | - Hassane Belabed
- Leibniz‐Forschungsinstitut für Molekulare Pharmakologie (FMP)Berlin13125Germany
| | - Marc Nazare
- Leibniz‐Forschungsinstitut für Molekulare Pharmakologie (FMP)Berlin13125Germany
| | - Volker Haucke
- Leibniz‐Forschungsinstitut für Molekulare Pharmakologie (FMP)Berlin13125Germany
- Faculty of Biology, Chemistry and PharmacyFreie Universität BerlinBerlin14195Germany
| | - Federico Gulluni
- Department of Molecular Biotechnology and Health SciencesUniversity of TurinTurin10126Italy
| | - Emilio Hirsch
- Department of Molecular Biotechnology and Health SciencesUniversity of TurinTurin10126Italy
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Miyano T, Suzuki A, Sakamoto N. Hyperosmotic stress induces epithelial-mesenchymal transition through rearrangements of focal adhesions in tubular epithelial cells. PLoS One 2021; 16:e0261345. [PMID: 34932568 PMCID: PMC8691603 DOI: 10.1371/journal.pone.0261345] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Accepted: 11/30/2021] [Indexed: 01/06/2023] Open
Abstract
Epithelial-mesenchymal transition (EMT) of tubular epithelial cells is a hallmark of renal tubulointerstitial fibrosis and is associated with chronic renal injury as well as acute renal injury. As one of the incidences and risk factors for acute renal injury, increasing the osmolality in the proximal tubular fluid by administration of intravenous mannitol has been reported, but the detailed mechanisms remain unclear. Hyperosmotic conditions caused by mannitol in the tubular tissue may generate not only osmotic but also mechanical stresses, which are known to be able to induce EMT in epithelial cells, thereby contributing to renal injury. Herein, we investigate the effect of hyperosmolarity on EMT in tubular epithelial cells. Normal rat kidney (NRK)-52E cells were exposed to mannitol-induced hyperosmotic stress. Consequently, the hyperosmotic stress led to a reduced expression of the epithelial marker E-cadherin and an enhanced expression of the mesenchymal marker, α-smooth muscle actin (α-SMA), which indicates an initiation of EMT in NKR-52E cells. The hyperosmotic condition also induced time-dependent disassembly and rearrangements of focal adhesions (FAs) concomitant with changes in actin cytoskeleton. Moreover, prevention of FAs rearrangements by cotreatment with Y-27632, a Rho-associated protein kinase inhibitor, could abolish the effects of hyperosmotic mannitol treatment, thus attenuating the expression of α-SMA to the level in nontreated cells. These results suggest that hyperosmotic stress may induce EMT through FAs rearrangement in proximal tubular epithelial cells.
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Affiliation(s)
- Takashi Miyano
- Department of Mechanical Systems Engineering, Graduate School of Systems Design, Tokyo Metropolitan University, Tokyo, Japan
- * E-mail: (TM); (NS)
| | - Atsushi Suzuki
- Department of Mechanical Systems Engineering, Graduate School of Systems Design, Tokyo Metropolitan University, Tokyo, Japan
| | - Naoya Sakamoto
- Department of Mechanical Systems Engineering, Graduate School of Systems Design, Tokyo Metropolitan University, Tokyo, Japan
- * E-mail: (TM); (NS)
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Zhu Y, Tian J, Peng X, Wang X, Yang N, Ying P, Wang H, Li B, Li Y, Zhang M, Cai Y, Lu Z, Niu S, Li Y, Zhong R, Chang J, Miao X. A genetic variant conferred high expression of CAV2 promotes pancreatic cancer progression and associates with poor prognosis. Eur J Cancer 2021; 151:94-105. [PMID: 33975060 DOI: 10.1016/j.ejca.2021.04.008] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Revised: 03/16/2021] [Accepted: 04/06/2021] [Indexed: 12/12/2022]
Abstract
AIM This study aimed to identify the functional genes and genetic variants associated with the prognosis of pancreatic ductal adenocarcinoma (PDAC) and reveal the mechanism underlying their prognostic roles. METHODS First, we implement a two-stage exome-wide association study in a total of 1070 patients to identify the genetic variant correlated with PDAC prognosis. Then we performed fine mapping through bioinformatics analysis and dual-luciferase reporter assays to reveal the causal functional variant and prognostic gene. Next, we established the gene knockdown, knockout, and overexpression cell lines with small interfering RNA, CRISPR/Cas9, and lentivirus, respectively, and investigated the gene function on cell proliferation and migration in vivo and in vitro. Finally, we performed the RNA-seq to elucidate downstream genes and mechanisms altering PDAC prognosis. RESULTS We identified the CAV1-CAV2 locus tagged by rs8940 was significantly associated with PDAC prognosis, and rs10249656 in the 3'untranslated region of CAV2 was the real functional variant, which upregulated CAV2 expression through abolishing miR-548s binding. We observed upregulated CAV2 in PDAC and the higher expression correlated with worse prognosis. Transient knockdown of CAV2 inhibited PDAC migration without affecting proliferation rate. Knockout of CAV2 suppressed PDAC progression and metastasis, whereas stable overexpression of CAV2 promoted. Overexpressed CAV2 promoted the PDAC progression and metastasis via perturbing genes in the focal adhesion (CCND1, IGTA1, and ZYX) and extracellular matrix organisation (PLOD2, CAST, and ITGA1) pathways mechanically. CONCLUSION These findings shed light on an important role of CAV2 on PDAC progression and the prognostic impact of its genetic variation.
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Affiliation(s)
- Ying Zhu
- Department of Epidemiology and Biostatistics, Key Laboratory for Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Sciences and Technology, Wuhan, China
| | - Jianbo Tian
- Department of Epidemiology and Biostatistics, Key Laboratory for Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Sciences and Technology, Wuhan, China
| | - Xiating Peng
- Department of Epidemiology and Biostatistics, Key Laboratory for Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Sciences and Technology, Wuhan, China
| | - Xiaoyang Wang
- Department of Epidemiology and Biostatistics, Key Laboratory for Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Sciences and Technology, Wuhan, China
| | - Nan Yang
- Department of Epidemiology and Biostatistics, Key Laboratory for Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Sciences and Technology, Wuhan, China
| | - Pingting Ying
- Department of Epidemiology and Biostatistics, Key Laboratory for Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Sciences and Technology, Wuhan, China
| | - Haoxue Wang
- Department of Epidemiology and Biostatistics, Key Laboratory for Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Sciences and Technology, Wuhan, China
| | - Bin Li
- Department of Epidemiology and Biostatistics, Key Laboratory for Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Sciences and Technology, Wuhan, China
| | - Yue Li
- Department of Epidemiology and Biostatistics, Key Laboratory for Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Sciences and Technology, Wuhan, China
| | - Ming Zhang
- Department of Epidemiology and Biostatistics, Key Laboratory for Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Sciences and Technology, Wuhan, China
| | - Yimin Cai
- Department of Epidemiology and Biostatistics, Key Laboratory for Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Sciences and Technology, Wuhan, China
| | - Zequn Lu
- Department of Epidemiology and Biostatistics, Key Laboratory for Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Sciences and Technology, Wuhan, China
| | - Siyuan Niu
- Department of Epidemiology and Biostatistics, Key Laboratory for Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Sciences and Technology, Wuhan, China
| | - Yao Li
- Department of Epidemiology and Biostatistics, Key Laboratory for Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Sciences and Technology, Wuhan, China
| | - Rong Zhong
- Department of Epidemiology and Biostatistics, Key Laboratory for Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Sciences and Technology, Wuhan, China
| | - Jiang Chang
- Department of Epidemiology and Biostatistics, Key Laboratory for Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Sciences and Technology, Wuhan, China.
| | - Xiaoping Miao
- Department of Epidemiology and Biostatistics, Key Laboratory for Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Sciences and Technology, Wuhan, China.
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Malek N, Michrowska A, Mazurkiewicz E, Mrówczyńska E, Mackiewicz P, Mazur AJ. The origin of the expressed retrotransposed gene ACTBL2 and its influence on human melanoma cells' motility and focal adhesion formation. Sci Rep 2021; 11:3329. [PMID: 33558623 PMCID: PMC7870945 DOI: 10.1038/s41598-021-82074-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Accepted: 01/08/2021] [Indexed: 01/30/2023] Open
Abstract
We have recently found that β-actin-like protein 2 (actbl2) forms complexes with gelsolin in human melanoma cells and can polymerize. Phylogenetic and bioinformatic analyses showed that actbl2 has a common origin with two non-muscle actins, which share a separate history from the muscle actins. The actin groups' divergence started at the beginning of vertebrate evolution, and actbl2 actins are characterized by the largest number of non-conserved amino acid substitutions of all actins. We also discovered that ACTBL2 is expressed at a very low level in several melanoma cell lines, but a small subset of cells exhibited a high ACTBL2 expression. We found that clones with knocked-out ACTBL2 (CR-ACTBL2) or overexpressing actbl2 (OE-ACTBL2) differ from control cells in the invasion, focal adhesion formation, and actin polymerization ratio, as well as in the formation of lamellipodia and stress fibers. Thus, we postulate that actbl2 is the seventh actin isoform and is essential for cell motility.
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Affiliation(s)
- Natalia Malek
- Department of Cell Pathology, Faculty of Biotechnology, University of Wroclaw, ul. Joliot-Curie 14a, 50-383, Wroclaw, Poland
| | - Aleksandra Michrowska
- Department of Cell Pathology, Faculty of Biotechnology, University of Wroclaw, ul. Joliot-Curie 14a, 50-383, Wroclaw, Poland
| | - Ewa Mazurkiewicz
- Department of Cell Pathology, Faculty of Biotechnology, University of Wroclaw, ul. Joliot-Curie 14a, 50-383, Wroclaw, Poland
| | - Ewa Mrówczyńska
- Department of Cell Pathology, Faculty of Biotechnology, University of Wroclaw, ul. Joliot-Curie 14a, 50-383, Wroclaw, Poland
| | - Paweł Mackiewicz
- Department of Bioinformatics and Genomics, Faculty of Biotechnology, University of Wroclaw, ul. Joliot-Curie 14a, Wroclaw, 50-383, Poland
| | - Antonina J Mazur
- Department of Cell Pathology, Faculty of Biotechnology, University of Wroclaw, ul. Joliot-Curie 14a, 50-383, Wroclaw, Poland.
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Tadijan A, Samaržija I, Humphries JD, Humphries MJ, Ambriović-Ristov A. KANK family proteins in cancer. Int J Biochem Cell Biol 2021; 131:105903. [PMID: 33309958 DOI: 10.1016/j.biocel.2020.105903] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Revised: 11/29/2020] [Accepted: 12/05/2020] [Indexed: 10/22/2022]
Abstract
The Kank (kidney or KN motif and ankyrin repeat domain-containing) family of proteins has been described as essential for crosstalk between actin and microtubules. Kank1, 2, 3 and 4 arose by gene duplication and diversification and share conserved structural domains. KANK proteins are localised mainly to the plasma membrane in focal adhesions, indirectly affecting RhoA and Rac1 thus regulating actin cytoskeleton. In addition, Kank proteins are part of the cortical microtubule stabilisation complex regulating microtubules. Most of the data have been collected for Kank1 protein whose expression promotes apoptosis and cell-cycle arrest while Kank3 was identified as hypoxia-inducible proapoptotic target of p53. A discrepancy in Kanks role in regulation of cell migration and sensitivity to antitumour drugs has been observed in different cell models. Since expression of Kank1 and 3 correlate positively with tumour progression and patient outcome, at least in some tumour types, they are candidates for tumour suppressors.
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Affiliation(s)
- Ana Tadijan
- Laboratory for Cell Biology and Signalling, Division of Molecular Biology, Ruđer Bošković Institute, Bijenička 54, 10000, Zagreb, Croatia; Laboratory for Protein Dynamics, Division of Molecular Medicine, Ruđer Bošković Institute, Bijenička 54, 10000, Zagreb, Croatia
| | - Ivana Samaržija
- Laboratory for Cell Biology and Signalling, Division of Molecular Biology, Ruđer Bošković Institute, Bijenička 54, 10000, Zagreb, Croatia; Laboratory for Epigenomics, Division of Molecular Medicine, Ruđer Bošković Institute, Bijenička 54, 10000, Zagreb, Croatia
| | - Jonathan D Humphries
- Wellcome Centre for Cell-Matrix Research, Faculty of Biology, Medicine & Health, University of Manchester, Manchester, M13 9PT, England, UK
| | - Martin J Humphries
- Wellcome Centre for Cell-Matrix Research, Faculty of Biology, Medicine & Health, University of Manchester, Manchester, M13 9PT, England, UK
| | - Andreja Ambriović-Ristov
- Laboratory for Cell Biology and Signalling, Division of Molecular Biology, Ruđer Bošković Institute, Bijenička 54, 10000, Zagreb, Croatia.
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10
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Gao W, Liu Y, Fan L, Zheng B, Jefferson JR, Wang S, Zhang H, Fang X, Nguyen BV, Zhu T, Roman RJ, Fan F. Role of γ-adducin in actin cytoskeleton rearrangements in podocyte pathophysiology. Am J Physiol Renal Physiol 2021; 320:F97-F113. [PMID: 33308016 PMCID: PMC7847051 DOI: 10.1152/ajprenal.00423.2020] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Revised: 11/24/2020] [Accepted: 11/24/2020] [Indexed: 12/16/2022] Open
Abstract
We recently reported that the enhanced susceptibility to chronic kidney disease (CKD) in the fawn-hooded hypertensive (FHH) rat is caused, at least in part, by a mutation in γ-adducin (ADD3) that attenuates renal vascular function. The present study explored whether Add3 contributes to the modulation of podocyte structure and function using FHH and FHH.Add3 transgenic rats. The expression of ADD3 on the membrane of primary podocytes isolated from FHH was reduced compared with FHH.Add3 transgenic rats. We found that F-actin nets, which are typically localized in the lamellipodia, replaced unbranched stress fibers in conditionally immortalized mouse podocytes transfected with Add3 Dicer-substrate short interfering RNA (DsiRNA) and primary podocytes isolated from FHH rats. There were increased F/G-actin ratios and expression of the Arp2/3 complexes throughout FHH podocytes in association with reduced synaptopodin and RhoA but enhanced Rac1 and CDC42 expression in the renal cortex, glomeruli, and podocytes of FHH rats. The expression of nephrin at the slit diaphragm and the levels of focal adhesion proteins integrin-α3 and integrin-β1 were decreased in the glomeruli of FHH rats. Cell migration was enhanced and adhesion was reduced in podocytes of FHH rats as well as in immortalized mouse podocytes transfected with Add3 DsiRNA. Mean arterial pressures were similar in FHH and FHH.Add3 transgenic rats at 16 wk of age; however, FHH rats exhibited enhanced proteinuria associated with podocyte foot process effacement. These results demonstrate that reduced ADD3 function in FHH rats alters baseline podocyte pathophysiology by rearrangement of the actin cytoskeleton at the onset of proteinuria in young animals.
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Affiliation(s)
- Wenjun Gao
- Department of Urology, Zhongshan Hospital, Fudan University, Shanghai, China
- Department of Pharmacology and Toxicology, University of Mississippi Medical Center, Jackson, Mississippi
| | - Yedan Liu
- Department of Pharmacology and Toxicology, University of Mississippi Medical Center, Jackson, Mississippi
| | - Letao Fan
- Department of Pharmacology and Toxicology, University of Mississippi Medical Center, Jackson, Mississippi
| | - Baoying Zheng
- Department of Pharmacology and Toxicology, University of Mississippi Medical Center, Jackson, Mississippi
| | - Joshua R Jefferson
- Department of Pharmacology and Toxicology, University of Mississippi Medical Center, Jackson, Mississippi
| | - Shaoxun Wang
- Department of Pharmacology and Toxicology, University of Mississippi Medical Center, Jackson, Mississippi
| | - Huawei Zhang
- Department of Pharmacology and Toxicology, University of Mississippi Medical Center, Jackson, Mississippi
| | - Xing Fang
- Department of Pharmacology and Toxicology, University of Mississippi Medical Center, Jackson, Mississippi
| | - Bond V Nguyen
- Department of Pharmacology and Toxicology, University of Mississippi Medical Center, Jackson, Mississippi
| | - Tongyu Zhu
- Department of Urology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Richard J Roman
- Department of Pharmacology and Toxicology, University of Mississippi Medical Center, Jackson, Mississippi
| | - Fan Fan
- Department of Pharmacology and Toxicology, University of Mississippi Medical Center, Jackson, Mississippi
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11
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Beri P, Popravko A, Yeoman B, Kumar A, Chen K, Hodzic E, Chiang A, Banisadr A, Placone JK, Carter H, Fraley SI, Katira P, Engler AJ. Cell Adhesiveness Serves as a Biophysical Marker for Metastatic Potential. Cancer Res 2019; 80:901-911. [PMID: 31857292 DOI: 10.1158/0008-5472.can-19-1794] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2019] [Revised: 09/30/2019] [Accepted: 12/16/2019] [Indexed: 02/07/2023]
Abstract
Tumors are heterogeneous and composed of cells with different dissemination abilities. Despite significant effort, there is no universal biological marker that serves as a metric for metastatic potential of solid tumors. Common to disseminating cells from such tumors, however, is the need to modulate their adhesion as they detach from the tumor and migrate through stroma to intravasate. Adhesion strength is heterogeneous even among cancer cells within a given population, and using a parallel plate flow chamber, we separated and sorted these populations into weakly and strongly adherent groups; when cultured under stromal conditions, this adhesion phenotype was stable over multiple days, sorting cycles, and common across all epithelial tumor lines investigated. Weakly adherent cells displayed increased migration in both two-dimensional and three-dimensional migration assays; this was maintained for several days in culture. Subpopulations did not show differences in expression of proteins involved in the focal adhesion complex but did exhibit intrinsic focal adhesion assembly as well as contractile differences that resulted from differential expression of genes involved in microtubules, cytoskeleton linkages, and motor activity. In human breast tumors, expression of genes associated with the weakly adherent population resulted in worse progression-free and disease-free intervals. These data suggest that adhesion strength could potentially serve as a stable marker for migration and metastatic potential within a given tumor population and that the fraction of weakly adherent cells present within a tumor could act as a physical marker for metastatic potential. SIGNIFICANCE: Cancer cells exhibit heterogeneity in adhesivity, which can be used to predict metastatic potential.
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Affiliation(s)
- Pranjali Beri
- Department of Bioengineering, University of California, San Diego, La Jolla, California
| | - Anna Popravko
- Department of Bioengineering, University of California, San Diego, La Jolla, California
| | - Benjamin Yeoman
- Department of Bioengineering, University of California, San Diego, La Jolla, California
- Department of Mechanical Engineering, San Diego State University, San Diego, California
| | - Aditya Kumar
- Department of Bioengineering, University of California, San Diego, La Jolla, California
| | - Kevin Chen
- Department of Bioengineering, University of California, San Diego, La Jolla, California
| | - Enio Hodzic
- Department of Bioengineering, University of California, San Diego, La Jolla, California
| | - Alyssa Chiang
- Department of Bioengineering, University of California, San Diego, La Jolla, California
| | - Afsheen Banisadr
- Biomedical Sciences Program, University of California, San Diego, La Jolla, California
| | - Jesse K Placone
- Department of Bioengineering, University of California, San Diego, La Jolla, California
| | - Hannah Carter
- Moores Cancer Center, University of California, San Diego, La Jolla, California
- Department of Medicine/Division of Medical Genetics, University of California, San Diego, La Jolla, California
| | - Stephanie I Fraley
- Department of Bioengineering, University of California, San Diego, La Jolla, California
- Moores Cancer Center, University of California, San Diego, La Jolla, California
| | - Parag Katira
- Department of Mechanical Engineering, San Diego State University, San Diego, California
- Computational Sciences Research Center, San Diego State University, San Diego, California
| | - Adam J Engler
- Department of Bioengineering, University of California, San Diego, La Jolla, California.
- Biomedical Sciences Program, University of California, San Diego, La Jolla, California
- Sanford Consortium for Regenerative Medicine, La Jolla, California
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12
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Hoock SC, Ritter A, Steinhäuser K, Roth S, Behrends C, Oswald F, Solbach C, Louwen F, Kreis N, Yuan J. RITA modulates cell migration and invasion by affecting focal adhesion dynamics. Mol Oncol 2019; 13:2121-2141. [PMID: 31353815 PMCID: PMC6763788 DOI: 10.1002/1878-0261.12551] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Revised: 07/12/2019] [Accepted: 07/21/2019] [Indexed: 12/15/2022] Open
Abstract
RITA, the RBP-J interacting and tubulin-associated protein, has been reported to be related to tumor development, but the underlying mechanisms are not understood. Since RITA interacts with tubulin and coats microtubules of the cytoskeleton, we hypothesized that it is involved in cell motility. We show here that depletion of RITA reduces cell migration and invasion of diverse cancer cell lines and mouse embryonic fibroblasts. Cells depleted of RITA display stable focal adhesions (FA) with elevated active integrin, phosphorylated focal adhesion kinase, and paxillin. This is accompanied by enlarged size and disturbed turnover of FA. These cells also demonstrate increased polymerized tubulin. Interestingly, RITA is precipitated with the lipoma-preferred partner (LPP), which is critical in actin cytoskeleton remodeling and cell migration. Suppression of RITA results in reduced LPP and α-actinin at FA leading to compromised focal adhesion turnover and actin dynamics. This study identifies RITA as a novel crucial player in cell migration and invasion by affecting the turnover of FA through its interference with the dynamics of actin filaments and microtubules. Its deregulation may contribute to malignant progression.
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Affiliation(s)
- Samira Catharina Hoock
- Department of Gynecology and Obstetrics, School of MedicineJ. W. Goethe‐UniversityFrankfurtGermany
| | - Andreas Ritter
- Department of Gynecology and Obstetrics, School of MedicineJ. W. Goethe‐UniversityFrankfurtGermany
| | - Kerstin Steinhäuser
- Department of Gynecology and Obstetrics, School of MedicineJ. W. Goethe‐UniversityFrankfurtGermany
- Present address:
Solvadis Distribution GmbHGernsheimGermany
| | - Susanne Roth
- Department of Gynecology and Obstetrics, School of MedicineJ. W. Goethe‐UniversityFrankfurtGermany
| | - Christian Behrends
- Institute of Biochemistry II, Medical SchoolJ. W.‐Goethe UniversityFrankfurtGermany
- Present address:
Munich Cluster of Systems NeurologyLudwig‐Maximilians‐Universität MünchenMunichGermany
| | - Franz Oswald
- Department of Internal Medicine I, Center for Internal MedicineMedical Center UlmGermany
| | - Christine Solbach
- Department of Gynecology and Obstetrics, School of MedicineJ. W. Goethe‐UniversityFrankfurtGermany
| | - Frank Louwen
- Department of Gynecology and Obstetrics, School of MedicineJ. W. Goethe‐UniversityFrankfurtGermany
| | - Nina‐Naomi Kreis
- Department of Gynecology and Obstetrics, School of MedicineJ. W. Goethe‐UniversityFrankfurtGermany
| | - Juping Yuan
- Department of Gynecology and Obstetrics, School of MedicineJ. W. Goethe‐UniversityFrankfurtGermany
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13
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Septiadi D, Abdussalam W, Rodriguez-Lorenzo L, Spuch-Calvar M, Bourquin J, Petri-Fink A, Rothen-Rutishauser B. Revealing the Role of Epithelial Mechanics and Macrophage Clearance during Pulmonary Epithelial Injury Recovery in the Presence of Carbon Nanotubes. Adv Mater 2018; 30:e1806181. [PMID: 30370701 DOI: 10.1002/adma.201806181] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2018] [Revised: 10/03/2018] [Indexed: 06/08/2023]
Abstract
Wound healing assays are extensively used to study tissue repair mechanisms; they are typically performed by means of physical (i.e., mechanical, electrical, or optical) detachment of the cells in order to create an open space in which live cells can lodge. Herein, an advanced system based on extensive photobleaching-induced apoptosis; providing a powerful tool to understand the repair response of lung epithelial tissue, consisting of a small injury area where apoptotic cells are still intact, is developed. Notably, the importance of epithelial mechanics and the presence of macrophages during the repair can be understood. The findings reveal that individual epithelial cells are able to clear the apoptotic cells by applying a pushing force, whilst macrophages actively phagocytose the dead cells to create an empty space. It is further shown that this repair mechanism is hampered when carbon nanotubes (CNTs) are introduced: formation of aberrant (i.e., thickening) F-actins, maturation of focal adhesion, and increase in traction force leading to retardation in cell migration are observed. The results provide a mechanistic view of how CNTs can interfere with lung repair.
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Affiliation(s)
- Dedy Septiadi
- Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, 1700, Fribourg, Switzerland
| | - Wildan Abdussalam
- Department of High Energy Density, Helmholtz-Zentrum Dresden-Rossendorf, Bautzner Landstraße 400, 01328, Dresden, Germany
| | - Laura Rodriguez-Lorenzo
- Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, 1700, Fribourg, Switzerland
| | - Miguel Spuch-Calvar
- Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, 1700, Fribourg, Switzerland
| | - Joël Bourquin
- Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, 1700, Fribourg, Switzerland
| | - Alke Petri-Fink
- Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, 1700, Fribourg, Switzerland
- Department of Chemistry, University of Fribourg, Chemin du Musée 9, 1700, Fribourg, Switzerland
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14
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Barnes EA, Lee L, Barnes SL, Brenner R, Alvira CM, Cornfield DN. β1-Subunit of the calcium-sensitive potassium channel modulates the pulmonary vascular smooth muscle cell response to hypoxia. Am J Physiol Lung Cell Mol Physiol 2018; 315:L265-L275. [PMID: 29644895 PMCID: PMC6139656 DOI: 10.1152/ajplung.00060.2018] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2018] [Revised: 04/04/2018] [Accepted: 04/05/2018] [Indexed: 11/22/2022] Open
Abstract
Accessory subunits associated with the calcium-sensitive potassium channel (BKCa), a major determinant of vascular tone, confer functional and anatomical diversity. The β1 subunit increases Ca2+ and voltagesensitivity of the BKCa channel and is expressed exclusively in smooth muscle cells. Evidence supporting the physiological significance of the β1 subunit includes the observations that murine models with deletion of the β1 subunit are hypertensive and that humans with a gain-of-function β1 mutation are at a decreased risk of diastolic hypertension. However, whether the β1 subunit of the BKCa channel contributes to the low tone that characterizes the normal pulmonary circulation or modulates the pulmonary vascular response to hypoxia remains unknown. To determine the role of the BKCa channel β1 subunit in the regulation of pulmonary vascular tone and the response to acute and chronic hypoxia, mice with deletion of the Kcnmb1 gene that encodes for the β1 subunit ( Kcnmb1-/-) were placed in chronic hypoxia (10% O2) for 21-24 days. In normoxia, right ventricular systolic pressure (RVSP) did not differ between Kcnmb1+/+ (controls) and Kcnmb1-/- mice. After exposure to either acute or chronic hypoxia, RVSP was higher in Kcnmb1-/- mice compared with Kcnmb1+/+ mice, without increased vascular remodeling. β1 subunit expression was predominantly confined to pulmonary artery smooth muscle cells (PASMCs) from vessels ≤ 150 µm. Peripheral PASMCs contracted collagen gels irrespective of β1 expression. Focal adhesion expression and Rho kinase activity were greater in Kcnmb1-/- compared with Kcnmb1+/+ PASMCs. Compromised PASMC β1 function may contribute to the heightened microvascular vasoconstriction that characterizes pulmonary hypertension.
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MESH Headings
- Acute Disease
- Animals
- Chronic Disease
- Focal Adhesions/genetics
- Focal Adhesions/metabolism
- Focal Adhesions/pathology
- Gene Deletion
- Hypertension, Pulmonary/genetics
- Hypertension, Pulmonary/metabolism
- Hypertension, Pulmonary/pathology
- Hypoxia/genetics
- Hypoxia/metabolism
- Hypoxia/pathology
- Large-Conductance Calcium-Activated Potassium Channel beta Subunits/genetics
- Large-Conductance Calcium-Activated Potassium Channel beta Subunits/metabolism
- Lung/blood supply
- Lung/metabolism
- Lung/pathology
- Mice
- Mice, Knockout
- Muscle, Smooth, Vascular/metabolism
- Muscle, Smooth, Vascular/pathology
- Myocytes, Smooth Muscle/metabolism
- Myocytes, Smooth Muscle/pathology
- Pulmonary Artery/metabolism
- Pulmonary Artery/pathology
- Vasoconstriction
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Affiliation(s)
- Elizabeth A Barnes
- Division of Pulmonary Medicine, Department of Pediatrics, Stanford University School of Medicine , Stanford, California
| | - Lori Lee
- Division of Pulmonary Medicine, Department of Pediatrics, Stanford University School of Medicine , Stanford, California
| | - Shayna L Barnes
- Division of Pulmonary Medicine, Department of Pediatrics, Stanford University School of Medicine , Stanford, California
| | - Robert Brenner
- Department of Cellular and Integrative Physiology, School of Medicine, University of Texas Health Sciences Center , San Antonio, Texas
| | - Cristina M Alvira
- Division of Pulmonary Medicine, Department of Pediatrics, Stanford University School of Medicine , Stanford, California
- Division of Critical Care Medicine, Department of Pediatrics, Stanford University School of Medicine , Stanford, California
| | - David N Cornfield
- Division of Pulmonary Medicine, Department of Pediatrics, Stanford University School of Medicine , Stanford, California
- Division of Critical Care Medicine, Department of Pediatrics, Stanford University School of Medicine , Stanford, California
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15
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Shen J, Cao B, Wang Y, Ma C, Zeng Z, Liu L, Li X, Tao D, Gong J, Xie D. Hippo component YAP promotes focal adhesion and tumour aggressiveness via transcriptionally activating THBS1/FAK signalling in breast cancer. J Exp Clin Cancer Res 2018; 37:175. [PMID: 30055645 PMCID: PMC6064138 DOI: 10.1186/s13046-018-0850-z] [Citation(s) in RCA: 123] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2018] [Accepted: 07/20/2018] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND Focal adhesion plays an essential role in tumour invasiveness and metastasis. Hippo component YAP has been widely reported to be involved in many aspects of tumour biology. However, its role in focal adhesion regulation in breast cancer remains unexplored. METHODS Tissue microarray was used to evaluate YAP expression in clinical breast cancer specimens by immunohistochemical staining. Cell migration and invasion abilities were measured by Transwell assay. A cell adhesion assay was used to measure the ability of cell adhesion to gelatin. The focal adhesion was visualized through immunofluorescence. Phosphorylated FAK and other proteins were detected by Western blot analysis. Gene expression profiling was used to screen differently expressed genes, and gene ontology enrichment was performed using DAVID software. The gene mRNA levels were measured by quantitative real-time PCR. The activity of the THBS1-promoter was evaluated by dual luciferase assay. Chromatin immunoprecipitation (ChIP) was used to verify whether YAP could bind to the THBS1-promoter region. The prediction of potential protein-interaction was performed with the String program. The ChIP sequence data of TEAD was obtained from the ENCODE database and analysed via the ChIP-seek tool. The gene expression dataset (GSE30480) of purified tumour cells from primary breast tumour tissues and metastatic lymph nodes was used in the gene set enrichment analysis. Prognostic analysis of the TCGA dataset was performed by the SurvExpress program. Gene expression correlation of the TCGA dataset was analysed via R2: Genomics Analysis and Visualization Platform. RESULTS Our study provides evidence that YAP acts as a promoter of focal adhesion and tumour invasiveness via regulating FAK phosphorylation in breast cancer. Further experiments reveal that YAP could induce FAK phosphorylation through a TEAD-dependent manner. Using gene expression profiling and bioinformatics analysis, we identify the FAK upstream gene, thrombospondin 1, as a direct transcriptional target of YAP-TEAD. Silencing THBS1 could reverse the YAP-induced FAK activation and focal adhesion. CONCLUSION Our results unveil a new signal axis, YAP/THBS1/FAK, in the modulation of cell adhesion and invasiveness, and provides new insights into the crosstalk between Hippo signalling and focal adhesion.
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Affiliation(s)
- Jie Shen
- Molecular Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Av., Wuhan, Hubei 430030 People’s Republic of China
- Department of Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Av., Wuhan, Hubei 430030 People’s Republic of China
| | - Beibei Cao
- Molecular Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Av., Wuhan, Hubei 430030 People’s Republic of China
- Department of Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Av., Wuhan, Hubei 430030 People’s Republic of China
| | - Yatao Wang
- Molecular Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Av., Wuhan, Hubei 430030 People’s Republic of China
- Department of Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Av., Wuhan, Hubei 430030 People’s Republic of China
| | - Chenshen Ma
- Molecular Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Av., Wuhan, Hubei 430030 People’s Republic of China
- Department of Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Av., Wuhan, Hubei 430030 People’s Republic of China
| | - Zhuo Zeng
- Molecular Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Av., Wuhan, Hubei 430030 People’s Republic of China
- Department of Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Av., Wuhan, Hubei 430030 People’s Republic of China
| | - Liang Liu
- Molecular Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Av., Wuhan, Hubei 430030 People’s Republic of China
- Department of Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Av., Wuhan, Hubei 430030 People’s Republic of China
| | - Xiaolan Li
- Department of Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Av., Wuhan, Hubei 430030 People’s Republic of China
| | - Deding Tao
- Department of Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Av., Wuhan, Hubei 430030 People’s Republic of China
| | - Jianping Gong
- Molecular Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Av., Wuhan, Hubei 430030 People’s Republic of China
- Department of Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Av., Wuhan, Hubei 430030 People’s Republic of China
| | - Daxing Xie
- Molecular Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Av., Wuhan, Hubei 430030 People’s Republic of China
- Department of Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Av., Wuhan, Hubei 430030 People’s Republic of China
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16
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Nakanishi T, Menju T, Nishikawa S, Takahashi K, Miyata R, Shikuma K, Sowa T, Imamura N, Hamaji M, Motoyama H, Hijiya K, Aoyama A, Sato T, Chen‐Yoshikawa TF, Sonobe M, Date H. The synergistic role of ATP-dependent drug efflux pump and focal adhesion signaling pathways in vinorelbine resistance in lung cancer. Cancer Med 2018; 7:408-419. [PMID: 29318780 PMCID: PMC5806107 DOI: 10.1002/cam4.1282] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2017] [Revised: 10/13/2017] [Accepted: 11/13/2017] [Indexed: 12/31/2022] Open
Abstract
The vinorelbine (VRB) plus cisplatin regimen is widely used to treat non-small cell lung cancer (NSCLC), but its cure rate is poor. Drug resistance is the primary driver of chemotherapeutic failure, and the causes of resistance remain unclear. By focusing on the focal adhesion (FA) pathway, we have highlighted a signaling pathway that promotes VRB resistance in lung cancer cells. First, we established VRB-resistant (VR) lung cancer cells (NCI-H1299 and A549) and examined its transcriptional changes, protein expressions, and activations. We treated VR cells by Src Family Kinase (SFK) inhibitors or gene silencing and examined cell viabilities. ATP-binding Cassette Sub-family B Member 1 (ABCB1) was highly expressed in VR cells. A pathway analysis and western blot analysis revealed the high expression of integrins β1 and β3 and the activation of FA pathway components, including Src family kinase (SFK) and AKT, in VR cells. SFK involvement in VRB resistance was confirmed by the recovery of VRB sensitivity in FYN knockdown A549 VR cells. Saracatinib, a dual inhibitor of SFK and ABCB1, had a synergistic effect with VRB in VR cells. In conclusion, ABCB1 is the primary cause of VRB resistance. Additionally, the FA pathway, particularly integrin, and SFK, are promising targets for VRB-resistant lung cancer. Further studies are needed to identify clinically applicable target drugs and biomarkers that will improve disease prognoses and predict therapeutic efficacies.
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MESH Headings
- ATP Binding Cassette Transporter, Subfamily B/metabolism
- Adenocarcinoma/drug therapy
- Adenocarcinoma/metabolism
- Adenocarcinoma/pathology
- Adenosine Triphosphate/pharmacology
- Adult
- Aged
- Antineoplastic Agents, Phytogenic/pharmacology
- Apoptosis
- Biomarkers, Tumor/metabolism
- Carcinoma, Large Cell/drug therapy
- Carcinoma, Large Cell/metabolism
- Carcinoma, Large Cell/pathology
- Carcinoma, Non-Small-Cell Lung/drug therapy
- Carcinoma, Non-Small-Cell Lung/metabolism
- Carcinoma, Non-Small-Cell Lung/pathology
- Carcinoma, Squamous Cell/drug therapy
- Carcinoma, Squamous Cell/metabolism
- Carcinoma, Squamous Cell/pathology
- Cell Proliferation
- Drug Resistance, Neoplasm
- Female
- Focal Adhesions/drug effects
- Focal Adhesions/metabolism
- Focal Adhesions/pathology
- Follow-Up Studies
- Humans
- Lung Neoplasms/drug therapy
- Lung Neoplasms/metabolism
- Lung Neoplasms/pathology
- Male
- Middle Aged
- Prognosis
- Signal Transduction/drug effects
- Survival Rate
- Tumor Cells, Cultured
- Vinorelbine/pharmacology
- src-Family Kinases/metabolism
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Affiliation(s)
- Takao Nakanishi
- Department of Thoracic SurgeryGraduate School of MedicineKyoto UniversityKyotoJapan
- Department of Thoracic SurgeryKobe‐City Nishi‐Kobe Medical CenterKobeJapan
| | - Toshi Menju
- Department of Thoracic SurgeryGraduate School of MedicineKyoto UniversityKyotoJapan
| | - Shigeto Nishikawa
- Department of Thoracic SurgeryGraduate School of MedicineKyoto UniversityKyotoJapan
| | - Koji Takahashi
- Department of Thoracic SurgeryGraduate School of MedicineKyoto UniversityKyotoJapan
| | - Ryo Miyata
- Department of Thoracic SurgeryGraduate School of MedicineKyoto UniversityKyotoJapan
| | - Kei Shikuma
- Department of Thoracic SurgeryGraduate School of MedicineKyoto UniversityKyotoJapan
| | - Terumasa Sowa
- Department of Thoracic SurgeryGraduate School of MedicineKyoto UniversityKyotoJapan
| | - Naoto Imamura
- Department of Thoracic SurgeryJapanese Red Cross Wakayama Medical CenterWakayamaJapan
| | - Masatsugu Hamaji
- Department of Thoracic SurgeryGraduate School of MedicineKyoto UniversityKyotoJapan
| | - Hideki Motoyama
- Department of Thoracic SurgeryGraduate School of MedicineKyoto UniversityKyotoJapan
| | - Kyoko Hijiya
- Department of Thoracic SurgeryGraduate School of MedicineKyoto UniversityKyotoJapan
| | - Akihiro Aoyama
- Department of Thoracic SurgeryGraduate School of MedicineKyoto UniversityKyotoJapan
| | - Toshihiko Sato
- Institute for Advancement of Clinical and Translational ScienceKyoto University HospitalKyotoJapan
| | | | - Makoto Sonobe
- Department of Thoracic SurgeryGraduate School of MedicineKyoto UniversityKyotoJapan
| | - Hiroshi Date
- Department of Thoracic SurgeryGraduate School of MedicineKyoto UniversityKyotoJapan
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17
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Holle AW, Young JL, Van Vliet KJ, Kamm RD, Discher D, Janmey P, Spatz JP, Saif T. Cell-Extracellular Matrix Mechanobiology: Forceful Tools and Emerging Needs for Basic and Translational Research. Nano Lett 2018; 18:1-8. [PMID: 29178811 PMCID: PMC5842374 DOI: 10.1021/acs.nanolett.7b04982] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Extracellular biophysical cues have a profound influence on a wide range of cell behaviors, including growth, motility, differentiation, apoptosis, gene expression, adhesion, and signal transduction. Cells not only respond to definitively mechanical cues from the extracellular matrix (ECM) but can also sometimes alter the mechanical properties of the matrix and hence influence subsequent matrix-based cues in both physiological and pathological processes. Interactions between cells and materials in vitro can modify cell phenotype and ECM structure, whether intentionally or inadvertently. Interactions between cell and matrix mechanics in vivo are of particular importance in a wide variety of disorders, including cancer, central nervous system injury, fibrotic diseases, and myocardial infarction. Both the in vitro and in vivo effects of this coupling between mechanics and biology hold important implications for clinical applications.
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Affiliation(s)
- Andrew W Holle
- Department of Cellular Biophysics, Max Planck Institute for Medical Research , Jahnstraße 29, 69120 Heidelberg, Germany
- Institute of Physical Chemistry, University of Heidelberg , 69117 Heidelberg, Germany
| | - Jennifer L Young
- Department of Cellular Biophysics, Max Planck Institute for Medical Research , Jahnstraße 29, 69120 Heidelberg, Germany
- Institute of Physical Chemistry, University of Heidelberg , 69117 Heidelberg, Germany
| | - Krystyn J Van Vliet
- BioSystems & Micromechanics IRG, Singapore-MIT Alliance in Research and Technology , Singapore
| | - Roger D Kamm
- BioSystems & Micromechanics IRG, Singapore-MIT Alliance in Research and Technology , Singapore
| | | | | | - Joachim P Spatz
- Department of Cellular Biophysics, Max Planck Institute for Medical Research , Jahnstraße 29, 69120 Heidelberg, Germany
- Institute of Physical Chemistry, University of Heidelberg , 69117 Heidelberg, Germany
| | - Taher Saif
- Department of Mechanical Sciences and Engineering, University of Illinois at Urbana-Champaign , 1206 West Green Street, Urbana, Illinois 61801, United States
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18
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Zhu M, Wang H, Cui J, Li W, An G, Pan Y, Zhang Q, Xing R, Lu Y. Calcium-binding protein S100A14 induces differentiation and suppresses metastasis in gastric cancer. Cell Death Dis 2017; 8:e2938. [PMID: 28726786 PMCID: PMC5550849 DOI: 10.1038/cddis.2017.297] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2017] [Revised: 05/24/2017] [Accepted: 05/25/2017] [Indexed: 02/05/2023]
Abstract
S100A14 is a calcium-binding protein involved in cell proliferation and differentiation as well as the metastasis of human tumors. In this study, we characterized the regulation of S100A14 expression between biological signatures and clinical pathological features in gastric cancer (GC). Our data demonstrated that S100A14 induced the differentiation of GC by upregulating the expression of E-cadherin and PGII. Moreover, S100A14 expression negatively correlated with cell migration and invasion in in vitro and in vivo experimental models. Interestingly, S100A14 blocked the store-operated Ca2+ influx by suppressing Orai1 and STIM1 expression, leading to FAK expression activation, focal adhesion assembly and MMP downregulation. Taken together, our results indicate that S100A14 may have a role in the induction of differentiation and inhibition of cell metastasis in GC.
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Affiliation(s)
- Min Zhu
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Laboratory of Molecular Oncology, Peking University Cancer Hospital and Institute, Beijing 100142, China
| | - Hongyi Wang
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Department of Surgery, Peking University Cancer Hospital and Institute, Beijing 100142, China
| | - Jiantao Cui
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Laboratory of Molecular Oncology, Peking University Cancer Hospital and Institute, Beijing 100142, China
| | - Wenmei Li
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Laboratory of Molecular Oncology, Peking University Cancer Hospital and Institute, Beijing 100142, China
| | - Guo An
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Department of Cell Biology, Peking University Cancer Hospital and Institute, Beijing 100142, China
| | - Yuanming Pan
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Laboratory of Molecular Oncology, Peking University Cancer Hospital and Institute, Beijing 100142, China
| | - Qingying Zhang
- Department of Preventive Medicine, Guangdong Provincial Key Laboratory of Infectious Diseases and Molecular Immunopathology, Shantou University Medical College, Shantou 515041, China
- Department of Preventive Medicine, Guangdong Provincial Key Laboratory of Infectious Diseases and Molecular Immunopathology, Shantou University Medical College, 22 Xinling Road, Jinping District, Guangdong 515041, China. Tel: +86 754 88900445; Fax: +86 754 88557562; E-mail:
| | - Rui Xing
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Laboratory of Molecular Oncology, Peking University Cancer Hospital and Institute, Beijing 100142, China
- Laboratory of Molecular Oncology, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital and Institute, 52 Fucheng Road, Haidian District, Beijing 100142, China. Tel: +86 10 88196731; Fax: +86 10 88122437; E-mail: or
| | - Youyong Lu
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Laboratory of Molecular Oncology, Peking University Cancer Hospital and Institute, Beijing 100142, China
- Laboratory of Molecular Oncology, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital and Institute, 52 Fucheng Road, Haidian District, Beijing 100142, China. Tel: +86 10 88196731; Fax: +86 10 88122437; E-mail: or
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19
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Abstract
Cell adhesion to the extracellular matrix is deregulated in metastasis. However, traditional surfaces used to study cell adhesion do not faithfully mimic the in vivo microenvironment. Electron beam lithography (EBL) is able to generate customized protein nanopatterns. Here, we used an EBL-based green lithography approach to fabricate homogeneous and gradient, single (fibronectin, K-casein) and double (fibronectin, laminin) active component protein nanopatterns with micrometer scale spacing to investigate differences in adhesion of breast cancer cells (BCC) and normal mammary epithelial cells (NMEC). Our results showed that as expected, in contrast to NMEC, BCC were plastic: they tolerated nonadhesion promoting regions, adapted to flow and exploited gradients better. In addition, the number of focal adhesions but not their area appeared to be the dominant parameter for regulation of cell adhesion. Our findings also demonstrated that custom designed protein nanopatterns, which can properly mimic the in vivo microenvironment, enable realistic distinction of normal and cancerous cell adhesion.
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Affiliation(s)
- Utku Horzum
- Department of Molecular Biology and Genetics, Izmir Institute of Technology, 35430 Urla/Izmir, Turkey
| | - Berrin Ozdil
- Department of Molecular Biology and Genetics, Izmir Institute of Technology, 35430 Urla/Izmir, Turkey
| | - Devrim Pesen-Okvur
- Department of Molecular Biology and Genetics, Izmir Institute of Technology, 35430 Urla/Izmir, Turkey
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20
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Stock C, Schwab A. Ion channels and transporters in metastasis. Biochim Biophys Acta 2014; 1848:2638-46. [PMID: 25445667 DOI: 10.1016/j.bbamem.2014.11.012] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2014] [Revised: 11/03/2014] [Accepted: 11/07/2014] [Indexed: 12/23/2022]
Abstract
An elaborate interplay between ion channels and transporters, components of the cytoskeleton, adhesion molecules, and signaling cascades provides the basis for each major step of the metastatic cascade. Ion channels and transporters contribute to cell motility by letting through or transporting ions essential for local Ca2+, pH and--in cooperation with water permeable aquaporins--volume homeostasis. Moreover, in addition to the actual ion transport they, or their auxiliary subunits, can display non-conducting activities. They can exert kinase activity in order to phosphorylate cytoskeletal constituents or their associates. They can become part of signaling processes by permeating Ca2+, by generating local pH-nanodomains or by being final downstream effectors. A number of channels and transporters are found at focal adhesions, interacting directly or indirectly with proteins of the extracellular matrix, with integrins or with components of the cytoskeleton. We also include the role of aquaporins in cell motility. They drive the outgrowth of lamellipodia/invadopodia or control the number of β1 integrins in the plasma membrane. The multitude of interacting ion channels and transporters (called transportome) including the associated signaling events holds great potential as therapeutic target(s) for anticancer agents that are aimed at preventing metastasis. This article is part of a Special Issue entitled: Membrane channels and transporters in cancers.
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Affiliation(s)
- Christian Stock
- Department of Gastroenterology, Hannover Medical School, Hannover, Germany.
| | - Albrecht Schwab
- Institute of Physiology II, University of Münster, Robert-Koch-Str. 27b, D-48149 Münster, Germany
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21
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Granato DC, Zanetti MR, Kawahara R, Yokoo S, Domingues RR, Aragão AZ, Agostini M, Carazzolle MF, Vidal RO, Flores IL, Korvala J, Cervigne NK, Silva ARS, Coletta RD, Graner E, Sherman NE, Leme AFP. Integrated proteomics identified up-regulated focal adhesion-mediated proteins in human squamous cell carcinoma in an orthotopic murine model. PLoS One 2014; 9:e98208. [PMID: 24858105 PMCID: PMC4032327 DOI: 10.1371/journal.pone.0098208] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2013] [Accepted: 04/30/2014] [Indexed: 01/20/2023] Open
Abstract
Understanding the molecular mechanisms of oral carcinogenesis will yield important advances in diagnostics, prognostics, effective treatment, and outcome of oral cancer. Hence, in this study we have investigated the proteomic and peptidomic profiles by combining an orthotopic murine model of oral squamous cell carcinoma (OSCC), mass spectrometry-based proteomics and biological network analysis. Our results indicated the up-regulation of proteins involved in actin cytoskeleton organization and cell-cell junction assembly events and their expression was validated in human OSCC tissues. In addition, the functional relevance of talin-1 in OSCC adhesion, migration and invasion was demonstrated. Taken together, this study identified specific processes deregulated in oral cancer and provided novel refined OSCC-targeting molecules.
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Affiliation(s)
- Daniela C. Granato
- Laboratório de Espectrometria de Massas, Laboratório Nacional de Biociências, LNBio, CNPEM, Campinas, Brazil
| | - Mariana R. Zanetti
- Laboratório de Espectrometria de Massas, Laboratório Nacional de Biociências, LNBio, CNPEM, Campinas, Brazil
| | - Rebeca Kawahara
- Laboratório de Espectrometria de Massas, Laboratório Nacional de Biociências, LNBio, CNPEM, Campinas, Brazil
| | - Sami Yokoo
- Laboratório de Espectrometria de Massas, Laboratório Nacional de Biociências, LNBio, CNPEM, Campinas, Brazil
| | - Romênia R. Domingues
- Laboratório de Espectrometria de Massas, Laboratório Nacional de Biociências, LNBio, CNPEM, Campinas, Brazil
| | - Annelize Z. Aragão
- Laboratório de Espectrometria de Massas, Laboratório Nacional de Biociências, LNBio, CNPEM, Campinas, Brazil
| | - Michelle Agostini
- Faculdade de Odontologia de Piracicaba, Universidade Estadual de Campinas, UNICAMP, Piracicaba, Brazil
- Faculdade de Odontologia, Universidade Federal do Rio de Janeiro, UFRJ, Rio de Janeiro, Brazil
| | - Marcelo F. Carazzolle
- Laboratório de Espectrometria de Massas, Laboratório Nacional de Biociências, LNBio, CNPEM, Campinas, Brazil
| | - Ramon O. Vidal
- Laboratório de Espectrometria de Massas, Laboratório Nacional de Biociências, LNBio, CNPEM, Campinas, Brazil
| | - Isadora L. Flores
- Laboratório de Espectrometria de Massas, Laboratório Nacional de Biociências, LNBio, CNPEM, Campinas, Brazil
- Faculdade de Odontologia de Piracicaba, Universidade Estadual de Campinas, UNICAMP, Piracicaba, Brazil
| | | | - Nilva K. Cervigne
- Faculdade de Odontologia de Piracicaba, Universidade Estadual de Campinas, UNICAMP, Piracicaba, Brazil
| | - Alan R. S. Silva
- Faculdade de Odontologia de Piracicaba, Universidade Estadual de Campinas, UNICAMP, Piracicaba, Brazil
| | - Ricardo D. Coletta
- Faculdade de Odontologia de Piracicaba, Universidade Estadual de Campinas, UNICAMP, Piracicaba, Brazil
| | - Edgard Graner
- Faculdade de Odontologia de Piracicaba, Universidade Estadual de Campinas, UNICAMP, Piracicaba, Brazil
| | - Nicholas E. Sherman
- W. M. Keck Biomedical Mass Spectrometry Lab. University of Virginia, Charlottesville, Virginia, United States of America
| | - Adriana F. Paes Leme
- Laboratório de Espectrometria de Massas, Laboratório Nacional de Biociências, LNBio, CNPEM, Campinas, Brazil
- * E-mail:
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22
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Lee C, Lee C, Lee S, Siu A, Ramos DM. The cytoplasmic extension of the integrin β6 subunit regulates epithelial-to-mesenchymal transition. Anticancer Res 2014; 34:659-664. [PMID: 24510996] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Prognosis for oral cancer patients has not improved in over 60 years due to invasion and recurrence. To understand the invasive behavior of this tumor, we evaluated the role of the αvβ6 integrin. Invasive oral SCC cells express the αvβ6 integrin, which contains an 11-amino-acid extension on its β-subunit unique to the integrin family. We determined that this β6 cytoplasmic extension regulates the composition of the intermediate filament network and the organization of signaling structures called focal contacts. The auto-phosphorylation of FAK, which is localized to focal contacts, was also regulated by the β6-cytoplasmic tail, as were the transcription factors Notch and STAT3. Lastly, we also determined that activation of MAPK required the full-length β6 integrin. Together these results indicate that the signaling critical to epithelial-to-mesenchymal transition (EMT) is regulated by the β6 integrin cytoplasmic domain.
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Affiliation(s)
- Carlin Lee
- DDS, Department of Orofacial Sciences, University of California, 513 Parnassus Ave, S612, Box 0422, San Francisco, CA 94143-0422, U.S.A.
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23
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Abstract
The protective antigen component of Bacillus anthracis toxins can interact with at least three distinct proteins on the host cell surface, capillary morphogenesis gene 2 (CMG2), tumor endothelial marker 8, and β1-integrin, and, with the assistance of other host proteins, enters targeted cells by receptor-mediated endocytosis. Using an antisense-based phenotypic screen, we discovered the role of calpains in this process. We show that functions of a ubiquitous Ca(2+)-dependent cysteine protease, calpain-2, and of the calpain substrate talin-1 are exploited for association of anthrax toxin and its principal receptor, CMG2, with higher-order actin filaments and consequently for toxin entry into host cells. Down-regulated expression of calpain-2 or talin-1, or pharmacological interference with calpain action, did not affect toxin binding but reduced endocytosis and increased the survival of cells exposed to anthrax lethal toxin. Adventitious expression of wild-type talin-1 promoted toxin endocytosis and lethality, whereas expression of a talin-1 mutant (L432G) that is insensitive to calpain cleavage did not. Disruption of talin-1, which links integrin-containing focal adhesion complexes to the actin cytoskeleton, facilitated association of toxin bound to its principal cell-surface receptor, CMG2, with higher-order actin filaments undergoing dynamic disassembly and reassembly during endocytosis. Our results reveal a mechanism by which a bacterial toxin uses constitutively occurring calpain-mediated cytoskeletal rearrangement for internalization.
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Affiliation(s)
| | | | - Stanley N. Cohen
- Departments of Genetics and
- Medicine, Stanford University School of Medicine, Stanford, CA 94305
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24
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Peschetola V, Laurent VM, Duperray A, Michel R, Ambrosi D, Preziosi L, Verdier C. Time-dependent traction force microscopy for cancer cells as a measure of invasiveness. Cytoskeleton (Hoboken) 2013; 70:201-14. [PMID: 23444002 DOI: 10.1002/cm.21100] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2012] [Revised: 01/08/2013] [Accepted: 02/05/2013] [Indexed: 12/18/2022]
Abstract
The migration of tumor cells of different degrees of invasivity is studied, on the basis of the traction forces exerted in time on soft substrates (Young modulus∼10 kPa). It is found that the outliers of the traction stresses can be an effective indicator to distinguish cancer cell lines of different invasiveness. Here, we test two different epithelial bladder cancer cell lines, one invasive (T24), and a less invasive one (RT112). Invasive cancer cells move in a nearly periodic motion, with peaks in velocity corresponding to higher traction forces exerted on the substrate, whereas less invasive cells develop traction stresses almost constant in time. The dynamics of focal adhesions (FAs) as well as cytoskeleton features reveals that different mechanisms are activated to migrate: T24 cells show an interconnected cytoskeleton linked to mature adhesion sites, leading to small traction stresses, whereas less invasive cells (RT112) show a less-structured cytoskeleton and unmature adhesions corresponding to higher traction stresses. Migration velocities are smaller in the case of less invasive cells. The mean squared displacement shows super-diffusive motion in both cases with higher exponent for the more invasive cancer cells. Further correlations between traction forces and the actin cytoskeleton reveal an unexpected pattern of a large actin rim at the RT112 cell edge where higher forces are colocalized, whereas a more usual cytoskeleton structure with stress fibers and FAs are found for T24 cancer cells. We conjecture that this kind of analysis can be useful to classify cancer cell invasiveness.
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25
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Garzon-Muvdi T, Schiapparelli P, ap Rhys C, Guerrero-Cazares H, Smith C, Kim DH, Kone L, Farber H, Lee DY, An SS, Levchenko A, Quiñones-Hinojosa A. Regulation of brain tumor dispersal by NKCC1 through a novel role in focal adhesion regulation. PLoS Biol 2012; 10:e1001320. [PMID: 22570591 PMCID: PMC3341330 DOI: 10.1371/journal.pbio.1001320] [Citation(s) in RCA: 117] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2011] [Accepted: 03/21/2012] [Indexed: 12/21/2022] Open
Abstract
Glioblastoma (GB) is a highly invasive and lethal brain tumor due to its universal recurrence. Although it has been suggested that the electroneutral Na(+)-K(+)-Cl(-) cotransporter 1 (NKCC1) can play a role in glioma cell migration, the precise mechanism by which this ion transporter contributes to GB aggressiveness remains poorly understood. Here, we focused on the role of NKCC1 in the invasion of human primary glioma cells in vitro and in vivo. NKCC1 expression levels were significantly higher in GB and anaplastic astrocytoma tissues than in grade II glioma and normal cortex. Pharmacological inhibition and shRNA-mediated knockdown of NKCC1 expression led to decreased cell migration and invasion in vitro and in vivo. Surprisingly, knockdown of NKCC1 in glioma cells resulted in the formation of significantly larger focal adhesions and cell traction forces that were approximately 40% lower than control cells. Epidermal growth factor (EGF), which promotes migration of glioma cells, increased the phosphorylation of NKCC1 through a PI3K-dependant mechanism. This finding is potentially related to WNK kinases. Taken together, our findings suggest that NKCC1 modulates migration of glioma cells by two distinct mechanisms: (1) through the regulation of focal adhesion dynamics and cell contractility and (2) through regulation of cell volume through ion transport. Due to the ubiquitous expression of NKCC1 in mammalian tissues, its regulation by WNK kinases may serve as new therapeutic targets for GB aggressiveness and can be exploited by other highly invasive neoplasms.
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Affiliation(s)
- Tomas Garzon-Muvdi
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
| | - Paula Schiapparelli
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
| | - Colette ap Rhys
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
| | - Hugo Guerrero-Cazares
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
| | - Christopher Smith
- Department of Biomedical Engineering, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
| | - Deok-Ho Kim
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
- Department of Biomedical Engineering, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
- Department of Bioengineering, University of Washington, Seattle, Washington, United States of America
| | - Lyonell Kone
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
| | - Harrison Farber
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
| | - Danielle Y. Lee
- Department of Environmental Health Sciences, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
| | - Steven S. An
- Department of Environmental Health Sciences, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
- Department of Physical Sciences in Oncology Center, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
| | - Andre Levchenko
- Department of Biomedical Engineering, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
| | - Alfredo Quiñones-Hinojosa
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
- Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
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26
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Abstract
In this review, we discuss the role of focal adhesion kinase (FAK), an intracellular tyrosine kinase, in endothelial cells in relation to neovascularization. Genetic and in vitro studies have identified critical factors, receptor systems, and their intracellular signaling components that regulate the neovasculogenic phenotypes of endothelial cells. Among these factors, FAK appears to regulate several aspects of endothelial cellular behavior, including migration, survival, cytoskeletal organization, as well as cell proliferation. Upon adhesion of endothelial cells to extracellular matrix (ECM) ligands, integrins cluster on the plane of plasma-membrane, while cytoplasmic domains of integrins interact with cytoskeletal proteins and signaling molecules including FAK. However, FAK not only serves as a critical component of integrin signaling, but is also a downstream element of the VEGF/VEGF-receptor and other ligand-receptor systems that regulate neovascularization. A complete understanding of FAK-mediated neovascularization, therefore, should address the molecular and cellular mechanisms that regulate the biology of FAK. Continued research on FAK may, therefore, yield novel therapies to improve treatment modalities for the pathological neovascularization associated with diseases.
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Affiliation(s)
- Kishore K Wary
- Department of Pharmacology, University of Illinois, 835 S. Wolcott, Room E403, Mail code 868, Chicago, IL 60612, USA.
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27
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Nagano M, Hoshino D, Koshiba S, Shuo T, Koshikawa N, Tomizawa T, Hayashi F, Tochio N, Harada T, Akizawa T, Watanabe S, Handa N, Shirouzu M, Kigawa T, Yokoyama S, Seiki M. ZF21 protein, a regulator of the disassembly of focal adhesions and cancer metastasis, contains a novel noncanonical pleckstrin homology domain. J Biol Chem 2011; 286:31598-609. [PMID: 21768110 PMCID: PMC3173091 DOI: 10.1074/jbc.m110.199430] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2010] [Revised: 07/09/2011] [Indexed: 12/20/2022] Open
Abstract
Directional migration of adherent cells on an extracellular matrix requires repeated formation and disassembly of focal adhesions (FAs). Directional migration of adherent cells We have identified ZF21 as a regulator of disassembly of FAs and cell migration, and increased expression of the gene has been linked to metastatic colon cancer. ZF21 is a member of a protein family characterized by the presence of the FYVE domain, which is conserved among Fab1p, YOPB, Vps27p, and EEA1 proteins, and has been shown to mediate the binding of such proteins to phosphoinositides in the lipid layers of cell membranes. ZF21 binds multiple factors that promote disassembly of FAs such as FAK, β-tubulin, m-calpain, and SHP-2. ZF21 does not contain any other known protein motifs other than the FYVE domain, but a region of the protein C-terminal to the FYVE domain is sufficient to mediate binding to β-tubulin. In this study, we demonstrate that the C-terminal region is important for the ability of ZF21 to induce disassembly of FAs and cell migration, and to promote an early step of experimental metastasis to the lung in mice. In light of the importance of the C-terminal region, we analyzed its ternary structure using NMR spectroscopy. We demonstrate that this region exhibits a structure similar to that of a canonical pleckstrin homology domain, but that it lacks a positively charged interface to bind phosphatidylinositol phosphate. Thus, ZF21 contains a novel noncanonical PH-like domain that is a possible target to develop a therapeutic strategy to treat metastatic cancer.
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Affiliation(s)
- Makoto Nagano
- From the Division of Cancer Cell Research, Institute of Medical Science, University of Tokyo, Minato-ku, Tokyo, 108-8639
- the Faculty of Pharmaceutical Sciences, Setsunan University, 45-1 Nagaotogecho, Hirakata Osaka, 573-0101
| | - Daisuke Hoshino
- From the Division of Cancer Cell Research, Institute of Medical Science, University of Tokyo, Minato-ku, Tokyo, 108-8639
| | - Seizo Koshiba
- the RIKEN Systems and Structural Biology Center, Yokohama Institute, 1-7-22 Suehiro-cho, Tsurumi, Yokohama 230-0045
- the Department of Supramolecular Biology, International Graduate School of Arts and Sciences, Yokohama City University, 1-7-29 Suehiro-cho, Tsurumi, Yokohama 230-0045
| | - Takuya Shuo
- From the Division of Cancer Cell Research, Institute of Medical Science, University of Tokyo, Minato-ku, Tokyo, 108-8639
| | - Naohiko Koshikawa
- From the Division of Cancer Cell Research, Institute of Medical Science, University of Tokyo, Minato-ku, Tokyo, 108-8639
| | - Tadashi Tomizawa
- the RIKEN Systems and Structural Biology Center, Yokohama Institute, 1-7-22 Suehiro-cho, Tsurumi, Yokohama 230-0045
| | - Fumiaki Hayashi
- the RIKEN Systems and Structural Biology Center, Yokohama Institute, 1-7-22 Suehiro-cho, Tsurumi, Yokohama 230-0045
| | - Naoya Tochio
- the RIKEN Systems and Structural Biology Center, Yokohama Institute, 1-7-22 Suehiro-cho, Tsurumi, Yokohama 230-0045
| | - Takushi Harada
- the RIKEN Systems and Structural Biology Center, Yokohama Institute, 1-7-22 Suehiro-cho, Tsurumi, Yokohama 230-0045
| | - Toshifumi Akizawa
- the Faculty of Pharmaceutical Sciences, Setsunan University, 45-1 Nagaotogecho, Hirakata Osaka, 573-0101
| | - Satoru Watanabe
- the RIKEN Systems and Structural Biology Center, Yokohama Institute, 1-7-22 Suehiro-cho, Tsurumi, Yokohama 230-0045
| | - Noriko Handa
- the RIKEN Systems and Structural Biology Center, Yokohama Institute, 1-7-22 Suehiro-cho, Tsurumi, Yokohama 230-0045
| | - Mikako Shirouzu
- the RIKEN Systems and Structural Biology Center, Yokohama Institute, 1-7-22 Suehiro-cho, Tsurumi, Yokohama 230-0045
| | - Takanori Kigawa
- the RIKEN Systems and Structural Biology Center, Yokohama Institute, 1-7-22 Suehiro-cho, Tsurumi, Yokohama 230-0045
- the Department of Computational Intelligence and Systems Science, Interdisciplinary Graduate School of Science and Engineering, Tokyo Institute of Technology, 4259 Nagatsuda-cho, Midori-ku, Yokohama 226-8502, and
| | - Shigeyuki Yokoyama
- the RIKEN Systems and Structural Biology Center, Yokohama Institute, 1-7-22 Suehiro-cho, Tsurumi, Yokohama 230-0045
- the Department of Biophysics and Biochemistry, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Motoharu Seiki
- From the Division of Cancer Cell Research, Institute of Medical Science, University of Tokyo, Minato-ku, Tokyo, 108-8639
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Wang Z, Kyono H, Bezerra HG, Wang H, Gargesha M, Alraies C, Xu C, Schmitt JM, Wilson DL, Costa MA, Rollins AM. Semiautomatic segmentation and quantification of calcified plaques in intracoronary optical coherence tomography images. J Biomed Opt 2010; 15:061711. [PMID: 21198159 DOI: 10.1117/1.3506212] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Coronary calcified plaque (CP) is both an important marker of atherosclerosis and major determinant of the success of coronary stenting. Intracoronary optical coherence tomography (OCT) with high spatial resolution can provide detailed volumetric characterization of CP. We present a semiautomatic method for segmentation and quantification of CP in OCT images. Following segmentation of the lumen, guide wire, and arterial wall, the CP was localized by edge detection and traced using a combined intensity and gradient-based level-set model. From the segmentation regions, quantification of the depth, area, angle fill fraction, and thickness of the CP was demonstrated. Validation by comparing the automatic results to expert manual segmentation of 106 in vivo images from eight patients showed an accuracy of 78±9%. For a variety of CP measurements, the bias was insignificant (except for depth measurement) and the agreement was adequate when the CP has a clear outer border and no guide-wire overlap. These results suggest that the proposed method can be used for automated CP analysis in OCT, thereby facilitating our understanding of coronary artery calcification in the process of atherosclerosis and helping guide complex interventional strategies in coronary arteries with superficial calcification.
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Affiliation(s)
- Zhao Wang
- Case Western Reserve University, Department of Biomedical Engineering, Cleveland, OH 44106, USA
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29
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Abstract
To understand how adherent cells regulate traction forces on their surrounding extracellular matrix (ECM), quantitative techniques are needed to measure forces at the cell-ECM interface. Microcontact printing is used to create a substrate of 1 μm diameter circles of ECM ligand to experimentally study the reconstruction of traction stresses at constrained, point-like focal adhesions. Traction reconstruction with point forces (TRPF) and Fourier transform traction cytometry (FTTC) are used to calculate the traction forces and stress field, respectively, at isolated adhesions. We find that the stress field calculated with FTTC peaks near the center of individual adhesions but propagates several microns beyond the adhesion location. We find the optimal set of FTTC parameters that yield the highest stress magnitude, minimizing information lost from over-smoothing and sampling of the displacement or stress field. A positive correlation between the TRPF and FTTC measurements exists, but integrating the FTTC stress field over the adhesion area yields only a small fraction of the force calculated by TRPF. An effective area similar to that defined by the width of the stress distribution measured with FTTC is required to reconcile these measurements. These measurements set bounds on the spatial resolution and precision of FTTC measurements on micron-sized adhesions.
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Affiliation(s)
- Jonathan Stricker
- Physics Department, James Franck Institute and Institute for Biophysical Dynamics, University of Chicago, Chicago, IL, USA
| | | | | | - Margaret L Gardel
- Physics Department, James Franck Institute and Institute for Biophysical Dynamics, University of Chicago, Chicago, IL, USA
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30
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Alderliesten M, de Graauw M, Oldenampsen J, Qin Y, Pont C, van Buren L, van de Water B. Extracellular signal-regulated kinase activation during renal ischemia/reperfusion mediates focal adhesion dissolution and renal injury. Am J Pathol 2007; 171:452-62. [PMID: 17620366 PMCID: PMC1934533 DOI: 10.2353/ajpath.2007.060805] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Acute renal failure due to ischemia/reperfusion involves disruption of integrin-mediated cellular adhesion and activation of the extracellular signal-regulated kinase (ERK) pathway. The dynamics of focal adhesion organization and phosphorylation during ischemia/reperfusion in relation to ERK activation are unknown. In control kidneys, protein tyrosine-rich focal adhesions, containing focal adhesion kinase, paxillin, and talin, were present at the basolateral membrane of tubular cells and colocalized with short F-actin stress fibers. Unilateral renal ischemia/reperfusion caused a reversible protein dephosphorylation and loss of focal adhesions. The focal adhesion protein phosphorylation rebounded in a biphasic manner, in association with increased focal adhesion kinase, Src, and paxillin tyrosine phosphorylation. Preceding phosphorylation of these focal adhesion proteins, reperfusion caused increased phosphorylation of ERK. The specific mitogen-activated protein kinase kinase 1/2 inhibitor U0126 prevented ERK activation and attenuated focal adhesion kinase, paxillin, and Src phosphorylation, focal adhesion restructuring, and ischemia/reperfusion-induced renal injury. We propose a model whereby ERK activation enhanced protein tyrosine phosphorylation during ischemia/reperfusion, thereby driving the dynamic dissolution and restructuring of focal adhesions and F-actin cytoskeleton during reperfusion and renal injury.
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Affiliation(s)
- Maaike Alderliesten
- Division of Toxicology, Leiden/Amsterdam Center for Drug Research, Leiden University, The Netherlands
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31
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Guttmann-Raviv N, Shraga-Heled N, Varshavsky A, Guimaraes-Sternberg C, Kessler O, Neufeld G. Semaphorin-3A and semaphorin-3F work together to repel endothelial cells and to inhibit their survival by induction of apoptosis. J Biol Chem 2007; 282:26294-305. [PMID: 17569671 DOI: 10.1074/jbc.m609711200] [Citation(s) in RCA: 177] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Semaphorin-3A (sema3A) is a neuropilin-1 (np1) agonist. It inhibits the binding of the 165-amino acid form of VEGF (VEGF(165)) to np1 and was reported to inhibit angiogenesis as a result. However, we find that sema3A concentrations that inhibit the mitogenic effects of VEGF(165) do not inhibit VEGF(165)-induced phosphorylation of VEGF receptor-2 (VEGFR-2). Furthermore, sema3A inhibits the biological effects of VEGF(121), a VEGF form that does not bind to neuropilins and basic fibroblast growth factor, a growth factor whose activity, unlike that of VEGF, is not inhibited by small interfering RNA directed against np1. Therefore, the mechanism by which sema3A inhibits VEGF(165) activity does not depend on competition with VEGF(165) for binding to np1. Sema3A induced rapid disappearance of focal contacts followed by collapse of the actin cytoskeleton in human umbilical vein-derived endothelial cells. HEK293 cells expressing sema3A repel human endothelial cells and at high concentrations induce their death by apoptosis. Furthermore, sema3A inhibited the formation of tubes from endothelial cells in an in vitro angiogenesis assay. Similar effects are induced by the neuropilin-2 (np2) agonist sema3F. These inhibitory effects are abrogated by small interfering RNAs directed against np1 or np2, respectively. The anti-proliferative effects of sema3A and sema3F are additive when the semaphorins are added as pure proteins. However, when sema3A and sema3F were co-expressed in HEK293 cells their pro-apoptotic and cell repellant activities appeared to be synergistic. These observations suggest that combinations of sema3A and sema3F may be able to inhibit tumor angiogenesis more effectively than single semaphorins.
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Affiliation(s)
- Noga Guttmann-Raviv
- Cancer and Vascular Biology Research Center, Rappaport Research Institute in the Medical Sciences, The Bruce Rappaport Faculty of Medicine, Technion, Israel Institute of Technology, Haifa 31096, Israel
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32
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Shi X, Ma YQ, Tu Y, Chen K, Wu S, Fukuda K, Qin J, Plow EF, Wu C. The MIG-2/integrin interaction strengthens cell-matrix adhesion and modulates cell motility. J Biol Chem 2007; 282:20455-66. [PMID: 17513299 DOI: 10.1074/jbc.m611680200] [Citation(s) in RCA: 143] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Integrin-mediated cell-matrix adhesion plays an important role in control of cell behavior. We report here that MIG-2, a widely expressed focal adhesion protein, interacts with beta1 and beta3 integrin cytoplasmic domains. Integrin binding is mediated by a single site within the MIG-2 FERM domain. Functionally, the MIG-2/integrin interaction recruits MIG-2 to focal adhesions. Furthermore, using alphaIIbbeta3 integrin-expressing Chinese hamster ovary cells, a well described model system for integrin activation, we show that MIG-2 promotes integrin activation and enhances cell-extracellular matrix adhesion. Although MIG-2 is expressed in many cell types, it is deficient in certain colon cancer cells. Expression of MIG-2, but not of an integrin binding-defective MIG-2 mutant, in MIG-2-null colon cancer cells strengthened cell-matrix adhesion, promoted focal adhesion formation, and reduced cell motility. These results suggest that the MIG-2/integrin interaction is an important element in the cellular control of integrin-mediated cell-matrix adhesion and that loss of this interaction likely contributes to high motility of colon cancer cells.
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Affiliation(s)
- Xiaohua Shi
- Department of Pathology, University of Pittsburgh School of Medicine, 3550 Terrace Street, Pittsburgh, PA 15261, USA
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33
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Su JL, Yang CY, Shih JY, Wei LH, Hsieh CY, Jeng YM, Wang MY, Yang PC, Kuo ML. Knockdown of contactin-1 expression suppresses invasion and metastasis of lung adenocarcinoma. Cancer Res 2006; 66:2553-61. [PMID: 16510572 DOI: 10.1158/0008-5472.can-05-2645] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Numerous genetic changes are associated with cancer cell metastasis and invasion. In search for key regulators of invasion and metastasis, a panel of lung cancer cell lines with different invasive ability was screened. The gene for contactin-1 was found to play an essential role in tumor invasion and metastasis. Suppression of contactin-1 expression abolished the ability of lung adenocarcinoma cells to invade Matrigel in vitro as well as the polymerization of filamentous-actin and the formation of focal adhesion structures. Furthermore, knockdown of contactin-1 resulted in extensive inhibition of tumor metastasis and in increased survival in an animal model. RhoA but not Cdc42 or Rac1 was found to serve a critical role in contactin-1-mediated invasion and metastasis. Contactin-1-specific RNA interference resulted in loss of metastatic and invasive capacity in both in vitro and in vivo models. This loss was overturned by constitutive expression of the active form of RhoA. Contactin-1 was differentially expressed in tumor tissues, and its expression correlated with tumor stage, lymph node metastasis, and patient survival. Contactin-1 is proposed to function importantly in the invasion and metastasis of lung adenocarcinoma cells via RhoA-mediated mechanisms.
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Affiliation(s)
- Jen-Liang Su
- Institute of Toxicology, College of Medicine, National Taiwan University, Taipei, Taiwan
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34
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Diener A, Nebe B, Lüthen F, Becker P, Beck U, Neumann HG, Rychly J. Control of focal adhesion dynamics by material surface characteristics. Biomaterials 2005; 26:383-92. [PMID: 15275812 DOI: 10.1016/j.biomaterials.2004.02.038] [Citation(s) in RCA: 151] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2003] [Accepted: 02/11/2004] [Indexed: 11/17/2022]
Abstract
The mechanisms of cell adhesion to the extracellular matrix (ECM) which are of fundamental importance for function, survival, and growth of cells involve the formation of focal adhesions to facilitate integrin signaling. Recently, it became evident that focal adhesions are not stable but move to enable cell migration and ECM formation. We examined the number, size, and dynamic behavior of focal adhesions in living MG-63 osteoblastic cells, which were cultured on titanium surfaces with different roughnesses and on stainless steel (SS). As a marker for focal adhesions we used GFP-tagged vinculin, a cytoskeletal protein. Focal adhesions were smaller on titanium and on SS than on collagen-coated glass coverslips. The corundum-blasted rough surface of titanium induced the smallest adhesions. On all the surfaces that we have tested, we observed a mobility of focal adhesions. On collagen-coated coverslips focal adhesions moved with a speed of 60 nm/min. The speed was reduced on titanium and still more restricted on SS. The topography did not affect the mobility of focal adhesions. We conclude that on the material surfaces that we have studied a reduced mobility of focal adhesions may strengthen the linkages between cell and ECM but impair the ability to dynamically organize and remodel the ECM. The results may have a great impact in the functional evaluation of tailored biomaterial surfaces for the application in tissue engineering.
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Affiliation(s)
- Annette Diener
- Department of Internal Medicine, University of Rostock, Ernst-Heydemann-Str. 6, Rostock 18055, Germany
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35
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Zheng PP, van der Weiden M, Kros JM. Differential expression of Hela-type caldesmon in tumour neovascularization: a new marker of angiogenic endothelial cells. J Pathol 2005; 205:408-14. [PMID: 15682433 DOI: 10.1002/path.1700] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Caldesmon (CaD) is a major actomyosin-binding protein found in various cell types. There are at least two high-molecular-weight isoforms (h-CaD) and four low-molecular-weight isoforms (l-CaD) produced by alternative splicing. The alternatively spliced variants of the l-CaD class are further differentiated by inclusion (Hela l-CaD) or exclusion (WI-38 l-CaD) of exon 1. Currently, nothing is known about differential expression of the Hela l-CaD in tumour neovascularization. In a previous study, expression of the Hela-type transcripts was found in glioma blood vessels but not in the normal cerebral vasculature. To investigate whether the differentially expressed transcripts are translated into protein, a specific antibody against the peptide encoded by exon 1 was raised. Initially, exclusive expression of the protein in glioma vasculature was confirmed. To determine further whether these findings are generalizable to neovascularization in a wide variety of other tumour types, a large cohort of cancers derived from various organs, including breast, lung, kidney, colon, stomach, ovary, uterus, prostate, thyroid, liver, giving a total of 180 cases, were examined. Expression of the Hela l-CaD was restricted to tumour vasculature and was not found in normal blood vessels. Hela l-CaD was preferentially expressed in the early stage of tumour neovascularization and the Hela l-CaD+ endothelial cells (ECs) were frequently enlarged, multinucleated, and developed elongated cell projections or free fragments of cytoplasm, correlating with the features of motile cells. In the Hela l-CaD+ ECs, disassembly of focal adhesion and the formation of podosome-like structures was observed. Therefore, the findings support the notion that quiescent ECs undergo activation of motility, necessary for ubiquitous tumour-associated neovascularization. The data indicate that Hela l-CaD can be considered as a marker for angiogenic ECs during the early stages of tumour neovascularization.
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Affiliation(s)
- Ping-Pin Zheng
- Department of Pathology, Erasmus Medical Centre, Rotterdam, The Netherlands
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36
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Abstract
Knowledge of the biomechanical properties of human atherosclerotic plaques is of essential importance for developing more insights in the pathophysiology of the cardiovascular system and for better predicting the outcome of interventional treatments such as balloon angioplasty. Available data are mainly based on uniaxial tests, and most of the studies investigate the mechanical response of fibrous plaque caps only. However, stress distributions during, for example, balloon angioplasty are strongly influenced by all components of atherosclerotic lesions. A total number of 107 samples from nine human high-grade stenotic iliac arteries were tested; associated anamnesis of donors reported. Magnetic resonance imaging was employed to test the usability of the harvested arteries. Histological analyses has served to characterize the different tissue types. Prepared strips of 7 different tissue types underwent cyclic quasistatic uniaxial tension tests in axial and circumferential directions; ultimate tensile stresses and stretches were documented. Experimental data of individual samples indicated anisotropic and highly nonlinear tissue properties as well as considerable interspecimen differences. The calcification showed, however, a linear property, with about the same stiffness as observed for the adventitia in high stress regions. The stress and stretch values at calcification fracture are smaller (179±56 kPa and 1.02±0.005) than for each of the other tissue components. Of all intimal tissues investigated, the lowest fracture stress occurred in the circumferential direction of the fibrous cap (254.8±79.8 kPa at stretch 1.182±0.1). The adventitia demonstrated the highest and the nondiseased media the lowest mechanical strength on average.
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Affiliation(s)
- Gerhard A Holzapfel
- Graz University of Technology, Institute for Structural Analysis, Computational Biomechanics, Schiesstattgasse 14-B, 8010 Graz, Austria.
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37
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Silver DL, Naora H, Liu J, Cheng W, Montell DJ. Activated signal transducer and activator of transcription (STAT) 3: localization in focal adhesions and function in ovarian cancer cell motility. Cancer Res 2004; 64:3550-8. [PMID: 15150111 DOI: 10.1158/0008-5472.can-03-3959] [Citation(s) in RCA: 207] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Constitutive activation of the Janus-activated kinase/signal transducer and activator of transcription (STAT) pathway promotes the proliferation and survival of cancer cells in culture and is associated with various cancers, including those of the ovary. We found that constitutively activated STAT3 levels correlated with aggressive clinical behavior of ovarian carcinoma specimens. Furthermore, inhibition of STAT3 reduced the motility of ovarian cancer cells in vitro. Surprisingly, we found that activated STAT3 localized not only to nuclei but also to focal adhesions in these cells. Activated STAT3 coimmunoprecipitated with phosphorylated paxillin and focal adhesion kinase and required paxillin and Src for its localization to focal adhesions. These results suggest that Janus-activated kinase/STAT signaling may contribute to ovarian cancer cell invasiveness.
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Affiliation(s)
- Debra L Silver
- Department of Biological Chemistry, Johns Hopkins School of Medicine, Baltimore, Maryland 21205, USA
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38
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Heredia L, Lin R, Vigo FS, Kedikian G, Busciglio J, Lorenzo A. Deposition of amyloid fibrils promotes cell-surface accumulation of amyloid β precursor protein. Neurobiol Dis 2004; 16:617-29. [PMID: 15262274 DOI: 10.1016/j.nbd.2004.04.015] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2003] [Revised: 04/09/2004] [Accepted: 04/19/2004] [Indexed: 12/21/2022] Open
Abstract
Amyloid beta protein (Abeta) deposition and neuronal degeneration are characteristic pathological features of Alzheimer's disease (AD). In vitro, Abeta fibrils (fAbeta) induce neuronal degeneration reminiscent to AD, but the mechanism of neurotoxicity is unknown. Here we show that amyloid fibrils increase the level of cell-surface full-length amyloid beta precursor protein (h-AbetaPP) and secreted AbetaPP (s-AbetaPP). Pulse-chase analysis indicated that fAbeta selectively inhibited the turnover of cell-surface AbetaPP, without altering its intracellular levels. FAbeta-induced AbetaPP accumulation was not abrogated by cycloheximide, suggesting that increased protein synthesis is not critically required. Abeta fibrils sequester s-AbetaPP from the culture medium and promote its accumulation at the cell surface, indicating that binding of Abeta fibrils mediates AbetaPP accumulation. A time course analysis of Abeta treatment showed that AbetaPP level is elevated before significant cell death can be detected, while other toxic insults do not augment AbetaPP level, suggesting that AbetaPP may be specifically involved in early stages of Abeta-induced neurodegeneration. Finally, Abeta fibrils promote clustering of h-AbetaPP in abnormal focal adhesion-like (FA-like) structures that mediate neuronal dystrophy, increasing its association with the cytoskeleton. These results indicate that the interaction of Abeta fibrils with AbetaPP is an early event in the mechanism of Abeta-induced neurodegeneration that may play a significant role in AD pathogenesis.
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Affiliation(s)
- Lorena Heredia
- Laboratory of Experimental Neuropathology, Instituto de Investigación Médica Mercedes y Martín Ferreyra-INIMEC/CONICET, Córdoba, 5000 Argentina
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39
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Abstract
BACKGROUND In medullary thyroid carcinoma (MTC), mutations in the RET protooncogene lead to oncogenic transformation. RET activation in other cell types has been shown to cause phosphorylation of the focal adhesion-associated proteins focal adhesion kinase (FAK), paxillin, and p130(CAS). We hypothesized that adhesion-dependent signaling might be deranged in MTC cells. METHODS Indirect immunofluorescence was used to label beta(1) integrin, FAK, paxillin, and p130CAS. Rhodamine-labeled phalloidin was used to visualize actin microfilaments. Phosphorylated protein was detected by immunoprecipitation followed by Western blotting for phosphotyrosine. MTC cell invasiveness was quantified using a modified Boyden chamber assay. RESULTS Clustering of beta(1) integrin, FAK, paxillin, and p130(CAS) into focal adhesions were not detected in MTC cells under any conditions, although clustering was seen as expected in control HeLa cells. Despite this failure, FAK, paxillin and p130(CAS) were all found to be phosphorylated. Actin microfilaments were generally not seen although in a few cells, small, poorly formed microfilaments could be detected. MTC cells invaded poorly as compared with highly invasive cell lines. However a clear difference was noted between invasiveness on growth factor depleted Matrigel and regular Matrigel. CONCLUSIONS In MTC cells, focal adhesions are not seen in response to interaction with extracellular matrix. Consistent with this failure, actin microfilaments are absent or poorly formed and invasion is weak. Despite the absence of focal adhesions, focal adhesion proteins remain phosphorylated, even though in normal cells their signaling activity is dependent on focal adhesion formation. Deranged adhesion-dependent signaling may contribute to MTC pathogenesis.
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Affiliation(s)
- Lawrence T Kim
- Surgical Service, Central Arkansas Veterans Healthcare System and University of Arkansas for Medical Sciences, Little Rock, Arkansas 72205, USA
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40
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Tokés AM, Paku S, Tóth S, Paál E, Kulka J, Tóth J, Telekes A. Tenascin expression in primary and recurrent breast carcinomas and the effect of tenascin on breast tumor cell cultures. Pathol Oncol Res 2000; 6:202-9. [PMID: 11033461 DOI: 10.1007/bf03032374] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Tenascin is generally classified as an anti-adhesive protein. Many cells do not adhere to tenascin or if they adhere they do not spread. In this study we analysed the stromal expression of tenascin-C in primary, second primary and recurrent breast carcinomas and the ability of tenascin-C to stimulate the focal adhesion plaques in MDA-MB-435 breast carcinoma cell line. To assess the tenascin-C expression formalin-fixed, paraffin-embedded specimens of 20 specially selected breast carcinomas and their recurrences (14) or a second primary breast cancer of the same patient (6) were examined with immunohistochemical methods. We also studied the effect of tenascin-C on focal adhesion plaques added to MDA-MB-435 breast carcinoma cell line. During a median 2,9-year patient follow up 14 local recurrences and 6-second primary breast carcinomas developed in the 20 patients. In 3 cases a second recurrence occurred. The presence of tenascin in tumor cells, in the proliferating and some normal ducts, near to the tumor cell nests, in the stroma and in ductal carcinoma in situ component of the invasive carcinoma may suggest the role of tenascin played in tumor cell migration. Soluble tenascin added to the cell culture had minimal or no effect on focal adhesion plaques. Tenascin only seems not to be of prognostic value in predicting the local recurrence of breast cancer.
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Affiliation(s)
- A M Tokés
- Faculty of Medicine, Semmelweis University, 2nd Department of Pathology Ulloi, Budapest, H-1091, Hungary.
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