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Brock K, Alpha KM, Brennan G, De Jong EP, Luke E, Turner CE. A comparative analysis of paxillin and Hic-5 proximity interactomes. Cytoskeleton (Hoboken) 2024. [PMID: 38801098 DOI: 10.1002/cm.21878] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2024] [Revised: 04/18/2024] [Accepted: 05/06/2024] [Indexed: 05/29/2024]
Abstract
Focal adhesions serve as structural and signaling hubs, facilitating bidirectional communication at the cell-extracellular matrix interface. Paxillin and the related Hic-5 (TGFβ1i1) are adaptor/scaffold proteins that recruit numerous structural and regulatory proteins to focal adhesions, where they perform both overlapping and discrete functions. In this study, paxillin and Hic-5 were expressed in U2OS osteosarcoma cells as biotin ligase (BioID2) fusion proteins and used as bait proteins for proximity-dependent biotinylation in order to directly compare their respective interactomes. The fusion proteins localized to both focal adhesions and the centrosome, resulting in biotinylation of components of each of these structures. Biotinylated proteins were purified and analyzed by mass spectrometry. The list of proximity interactors for paxillin and Hic-5 comprised numerous shared core focal adhesion proteins that likely contribute to their similar functions in cell adhesion and migration, as well as proteins unique to paxillin and Hic-5 that have been previously localized to focal adhesions, the centrosome, or the nucleus. Western blotting confirmed biotinylation and enrichment of FAK and vinculin, known interactors of Hic-5 and paxillin, as well as several potentially unique proximity interactors of Hic-5 and paxillin, including septin 7 and ponsin, respectively. Further investigation into the functional relationship between the unique interactors and Hic-5 or paxillin may yield novel insights into their distinct roles in cell migration.
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Affiliation(s)
- Katia Brock
- Department of Cell and Developmental Biology, State University of New York Upstate Medical University, Syracuse, New York, USA
| | - Kyle M Alpha
- Department of Cell and Developmental Biology, State University of New York Upstate Medical University, Syracuse, New York, USA
| | - Grant Brennan
- Department of Cell and Developmental Biology, State University of New York Upstate Medical University, Syracuse, New York, USA
| | - Ebbing P De Jong
- Proteomics Core Facility, State University of New York Upstate Medical University, Syracuse, New York, USA
| | - Elizabeth Luke
- Department of Cell and Developmental Biology, State University of New York Upstate Medical University, Syracuse, New York, USA
| | - Christopher E Turner
- Department of Cell and Developmental Biology, State University of New York Upstate Medical University, Syracuse, New York, USA
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2
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Zhang Y, Zheng H, Xu M, Maeda N, Tsunedomi R, Kishi H, Nagano H, Kobayashi S. Fyn-Mediated Paxillin Tyrosine 31 Phosphorylation Regulates Migration and Invasion of Breast Cancer Cells. Int J Mol Sci 2023; 24:15980. [PMID: 37958964 PMCID: PMC10647795 DOI: 10.3390/ijms242115980] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 10/29/2023] [Accepted: 10/30/2023] [Indexed: 11/15/2023] Open
Abstract
Metastasis is the leading cause of death in breast cancer patients due to the lack of effective therapies. Elevated levels of paxillin expression have been observed in various cancer types, with tyrosine phosphorylation shown to play a critical role in driving cancer cell migration. However, the specific impact of the distinct tyrosine phosphorylation events of paxillin in the progression of breast cancer remains to be fully elucidated. Here, we found that paxillin overexpression in breast cancer tissue is associated with a patient's poor prognosis. Paxillin knockdown inhibited the migration and invasion of breast cancer cells. Furthermore, the phosphorylation of paxillin tyrosine residue 31 (Tyr31) was significantly increased upon the TGF-β1-induced migration and invasion of breast cancer cells. Inhibiting Fyn activity or silencing Fyn decreases paxillin Tyr31 phosphorylation. The wild-type and constitutively active Fyn directly phosphorylate paxillin Tyr31 in an in vitro system, indicating that Fyn directly phosphorylates paxillin Tyr31. Additionally, the non-phosphorylatable mutant of paxillin at Tyr31 reduces actin stress fiber formation, migration, and invasion of breast cancer cells. Taken together, our results provide direct evidence that Fyn-mediated paxillin Tyr31 phosphorylation is required for breast cancer migration and invasion, suggesting that targeting paxillin Tyr31 phosphorylation could be a potential therapeutic strategy for mitigating breast cancer metastasis.
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Affiliation(s)
- Ying Zhang
- Department of Molecular and Cellular Physiology, Graduate School of Medicine, Yamaguchi University, 1-1-1 Minami-Kogushi, Ube, Yamaguchi 755-8505, Japan;
| | - Huanyu Zheng
- Department of Gastroenterological, Breast and Endocrine Surgery, Graduate School of Medicine, Yamaguchi University, 1-1-1 Minami-Kogushi, Ube, Yamaguchi 755-8505, Japan (H.N.)
| | - Ming Xu
- Department of Gastroenterological, Breast and Endocrine Surgery, Graduate School of Medicine, Yamaguchi University, 1-1-1 Minami-Kogushi, Ube, Yamaguchi 755-8505, Japan (H.N.)
| | - Noriko Maeda
- Department of Gastroenterological, Breast and Endocrine Surgery, Graduate School of Medicine, Yamaguchi University, 1-1-1 Minami-Kogushi, Ube, Yamaguchi 755-8505, Japan (H.N.)
| | - Ryouichi Tsunedomi
- Department of Gastroenterological, Breast and Endocrine Surgery, Graduate School of Medicine, Yamaguchi University, 1-1-1 Minami-Kogushi, Ube, Yamaguchi 755-8505, Japan (H.N.)
| | - Hiroko Kishi
- Department of Molecular and Cellular Physiology, Graduate School of Medicine, Yamaguchi University, 1-1-1 Minami-Kogushi, Ube, Yamaguchi 755-8505, Japan;
| | - Hiroaki Nagano
- Department of Gastroenterological, Breast and Endocrine Surgery, Graduate School of Medicine, Yamaguchi University, 1-1-1 Minami-Kogushi, Ube, Yamaguchi 755-8505, Japan (H.N.)
| | - Sei Kobayashi
- Department of Molecular and Cellular Physiology, Graduate School of Medicine, Yamaguchi University, 1-1-1 Minami-Kogushi, Ube, Yamaguchi 755-8505, Japan;
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3
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Wang X, Istvanffy R, Ye L, Teller S, Laschinger M, Diakopoulos KN, Görgülü K, Li Q, Ren L, Jäger C, Steiger K, Muckenhuber A, Vilne B, Çifcibaşı K, Reyes CM, Yurteri Ü, Kießler M, Gürçınar IH, Sugden M, Yıldızhan SE, Sezerman OU, Çilingir S, Süyen G, Reichert M, Schmid RM, Bärthel S, Oellinger R, Krüger A, Rad R, Saur D, Algül H, Friess H, Lesina M, Ceyhan GO, Demir IE. Phenotype screens of murine pancreatic cancer identify a Tgf-α-Ccl2-paxillin axis driving human-like neural invasion. J Clin Invest 2023; 133:e166333. [PMID: 37607005 PMCID: PMC10617783 DOI: 10.1172/jci166333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Accepted: 08/17/2023] [Indexed: 08/23/2023] Open
Abstract
Solid cancers like pancreatic ductal adenocarcinoma (PDAC), a type of pancreatic cancer, frequently exploit nerves for rapid dissemination. This neural invasion (NI) is an independent prognostic factor in PDAC, but insufficiently modeled in genetically engineered mouse models (GEMM) of PDAC. Here, we systematically screened for human-like NI in Europe's largest repository of GEMM of PDAC, comprising 295 different genotypes. This phenotype screen uncovered 2 GEMMs of PDAC with human-like NI, which are both characterized by pancreas-specific overexpression of transforming growth factor α (TGF-α) and conditional depletion of p53. Mechanistically, cancer-cell-derived TGF-α upregulated CCL2 secretion from sensory neurons, which induced hyperphosphorylation of the cytoskeletal protein paxillin via CCR4 on cancer cells. This activated the cancer migration machinery and filopodia formation toward neurons. Disrupting CCR4 or paxillin activity limited NI and dampened tumor size and tumor innervation. In human PDAC, phospho-paxillin and TGF-α-expression constituted strong prognostic factors. Therefore, we believe that the TGF-α-CCL2-CCR4-p-paxillin axis is a clinically actionable target for constraining NI and tumor progression in PDAC.
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Affiliation(s)
- Xiaobo Wang
- Department of Surgery, Klinikum rechts der Isar, Technical University of Munich, School of Medicine, Munich, Germany
- CRC 1321 Modelling and Targeting Pancreatic Cancer, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
- Department of General Surgery, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Rouzanna Istvanffy
- Department of Surgery, Klinikum rechts der Isar, Technical University of Munich, School of Medicine, Munich, Germany
- CRC 1321 Modelling and Targeting Pancreatic Cancer, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
- Neural Influences in Cancer (NIC) International Research Consortium
| | - Linhan Ye
- Department of Surgery, Klinikum rechts der Isar, Technical University of Munich, School of Medicine, Munich, Germany
- CRC 1321 Modelling and Targeting Pancreatic Cancer, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
- Pain Clinic, Department of Anesthesiology, First Affiliated Hospital of USTC (Anhui Provincial Hospital), Division of Life Sciences and Medicine, University of Science and Technology of China (USTC), Hefei, China
| | - Steffen Teller
- Department of Surgery, Klinikum rechts der Isar, Technical University of Munich, School of Medicine, Munich, Germany
- CRC 1321 Modelling and Targeting Pancreatic Cancer, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
| | - Melanie Laschinger
- Department of Surgery, Klinikum rechts der Isar, Technical University of Munich, School of Medicine, Munich, Germany
| | - Kalliope N. Diakopoulos
- CRC 1321 Modelling and Targeting Pancreatic Cancer, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
- Department of Internal Medicine II & Comprehensive Cancer Center Munich, Klinikum rechts der Isar, Technical University of Munich, School of Medicine, Munich, Germany
| | - Kıvanç Görgülü
- CRC 1321 Modelling and Targeting Pancreatic Cancer, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
- Department of Internal Medicine II & Comprehensive Cancer Center Munich, Klinikum rechts der Isar, Technical University of Munich, School of Medicine, Munich, Germany
| | - Qiaolin Li
- Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Lei Ren
- Department of Surgery, Klinikum rechts der Isar, Technical University of Munich, School of Medicine, Munich, Germany
- CRC 1321 Modelling and Targeting Pancreatic Cancer, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
| | - Carsten Jäger
- Department of Surgery, Klinikum rechts der Isar, Technical University of Munich, School of Medicine, Munich, Germany
- CRC 1321 Modelling and Targeting Pancreatic Cancer, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
| | - Katja Steiger
- CRC 1321 Modelling and Targeting Pancreatic Cancer, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
- Comparative Experimental Pathology and Institute of Pathology, Technical University of Munich, School of Medicine, Munich, Germany
| | - Alexander Muckenhuber
- CRC 1321 Modelling and Targeting Pancreatic Cancer, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
- Comparative Experimental Pathology and Institute of Pathology, Technical University of Munich, School of Medicine, Munich, Germany
| | - Baiba Vilne
- Bioinformatics laboratory, Riga Stradins University, Riga, Latvia
| | - Kaan Çifcibaşı
- Department of Surgery, Klinikum rechts der Isar, Technical University of Munich, School of Medicine, Munich, Germany
- CRC 1321 Modelling and Targeting Pancreatic Cancer, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
| | - Carmen Mota Reyes
- Department of Surgery, Klinikum rechts der Isar, Technical University of Munich, School of Medicine, Munich, Germany
- CRC 1321 Modelling and Targeting Pancreatic Cancer, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
- Neural Influences in Cancer (NIC) International Research Consortium
| | - Ümmügülsüm Yurteri
- Department of Surgery, Klinikum rechts der Isar, Technical University of Munich, School of Medicine, Munich, Germany
- CRC 1321 Modelling and Targeting Pancreatic Cancer, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
| | - Maximilian Kießler
- Department of Surgery, Klinikum rechts der Isar, Technical University of Munich, School of Medicine, Munich, Germany
- CRC 1321 Modelling and Targeting Pancreatic Cancer, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
| | - Ibrahim Halil Gürçınar
- Department of Surgery, Klinikum rechts der Isar, Technical University of Munich, School of Medicine, Munich, Germany
- CRC 1321 Modelling and Targeting Pancreatic Cancer, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
| | - Maya Sugden
- Department of Surgery, Klinikum rechts der Isar, Technical University of Munich, School of Medicine, Munich, Germany
- CRC 1321 Modelling and Targeting Pancreatic Cancer, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
| | | | | | - Sümeyye Çilingir
- Department of Physiology, Acibadem Mehmet Ali Aydinlar University, School of Medicine, Istanbul, Turkey
| | - Güldal Süyen
- Department of Physiology, Acibadem Mehmet Ali Aydinlar University, School of Medicine, Istanbul, Turkey
| | - Maximilian Reichert
- CRC 1321 Modelling and Targeting Pancreatic Cancer, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
- German Cancer Consortium (DKTK), Partner Site Munich, Munich, Germany
- Department of Internal Medicine II, Klinikum rechts der Isar, Technical University of Munich, School of Medicine, Munich, Germany
| | - Roland M. Schmid
- CRC 1321 Modelling and Targeting Pancreatic Cancer, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
- German Cancer Consortium (DKTK), Partner Site Munich, Munich, Germany
- Department of Internal Medicine II, Klinikum rechts der Isar, Technical University of Munich, School of Medicine, Munich, Germany
| | - Stefanie Bärthel
- CRC 1321 Modelling and Targeting Pancreatic Cancer, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
- Institute of Translational Cancer Research (TranslaTUM) and Experimental Cancer Therapy
| | - Rupert Oellinger
- CRC 1321 Modelling and Targeting Pancreatic Cancer, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
- Institute of Molecular Oncology and Functional Genomics
| | - Achim Krüger
- Institute of Experimental Oncology and Therapy Research, School of Medicine, Technical University Munich, Munich, Germany
| | - Roland Rad
- CRC 1321 Modelling and Targeting Pancreatic Cancer, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
- German Cancer Consortium (DKTK), Partner Site Munich, Munich, Germany
- Institute of Molecular Oncology and Functional Genomics
| | - Dieter Saur
- CRC 1321 Modelling and Targeting Pancreatic Cancer, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
- German Cancer Consortium (DKTK), Partner Site Munich, Munich, Germany
- Institute of Translational Cancer Research (TranslaTUM) and Experimental Cancer Therapy
| | - Hana Algül
- CRC 1321 Modelling and Targeting Pancreatic Cancer, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
- Department of Internal Medicine II & Comprehensive Cancer Center Munich, Klinikum rechts der Isar, Technical University of Munich, School of Medicine, Munich, Germany
- German Cancer Consortium (DKTK), Partner Site Munich, Munich, Germany
| | - Helmut Friess
- Department of Surgery, Klinikum rechts der Isar, Technical University of Munich, School of Medicine, Munich, Germany
- CRC 1321 Modelling and Targeting Pancreatic Cancer, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
- Neural Influences in Cancer (NIC) International Research Consortium
- German Cancer Consortium (DKTK), Partner Site Munich, Munich, Germany
| | - Marina Lesina
- CRC 1321 Modelling and Targeting Pancreatic Cancer, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
- Department of Internal Medicine II & Comprehensive Cancer Center Munich, Klinikum rechts der Isar, Technical University of Munich, School of Medicine, Munich, Germany
- German Cancer Consortium (DKTK), Partner Site Munich, Munich, Germany
| | - Güralp Onur Ceyhan
- Department of Surgery, Klinikum rechts der Isar, Technical University of Munich, School of Medicine, Munich, Germany
- Neural Influences in Cancer (NIC) International Research Consortium
- Department of General Surgery, HPB-Unit, School of Medicine, Acibadem Mehmet Ali Aydinlar University, Istanbul, Turkey
| | - Ihsan Ekin Demir
- Department of Surgery, Klinikum rechts der Isar, Technical University of Munich, School of Medicine, Munich, Germany
- CRC 1321 Modelling and Targeting Pancreatic Cancer, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
- Neural Influences in Cancer (NIC) International Research Consortium
- German Cancer Consortium (DKTK), Partner Site Munich, Munich, Germany
- Department of General Surgery, HPB-Unit, School of Medicine, Acibadem Mehmet Ali Aydinlar University, Istanbul, Turkey
- Else Kröner Clinician Scientist Professor for Translational Pancreatic Surgery, Technical University of Munich, Munich, Germany
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4
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Zhang W, Wu Y, J Gunst S. Membrane adhesion junctions regulate airway smooth muscle phenotype and function. Physiol Rev 2023; 103:2321-2347. [PMID: 36796098 PMCID: PMC10243546 DOI: 10.1152/physrev.00020.2022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 02/09/2023] [Accepted: 02/15/2023] [Indexed: 02/18/2023] Open
Abstract
The local environment surrounding airway smooth muscle (ASM) cells has profound effects on the physiological and phenotypic properties of ASM tissues. ASM is continually subjected to the mechanical forces generated during breathing and to the constituents of its surrounding extracellular milieu. The smooth muscle cells within the airways continually modulate their properties to adapt to these changing environmental influences. Smooth muscle cells connect to the extracellular cell matrix (ECM) at membrane adhesion junctions that provide mechanical coupling between smooth muscle cells within the tissue. Membrane adhesion junctions also sense local environmental signals and transduce them to cytoplasmic and nuclear signaling pathways in the ASM cell. Adhesion junctions are composed of clusters of transmembrane integrin proteins that bind to ECM proteins outside the cell and to large multiprotein complexes in the submembranous cytoplasm. Physiological conditions and stimuli from the surrounding ECM are sensed by integrin proteins and transduced by submembranous adhesion complexes to signaling pathways to the cytoskeleton and nucleus. The transmission of information between the local environment of the cells and intracellular processes enables ASM cells to rapidly adapt their physiological properties to modulating influences in their extracellular environment: mechanical and physical forces that impinge on the cell, ECM constituents, local mediators, and metabolites. The structure and molecular organization of adhesion junction complexes and the actin cytoskeleton are dynamic and constantly changing in response to environmental influences. The ability of ASM to rapidly accommodate to the ever-changing conditions and fluctuating physical forces within its local environment is essential for its normal physiological function.
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Affiliation(s)
- Wenwu Zhang
- Department of Anatomy, Cell Biology and Physiology, Indiana University School of Medicine, Indianapolis, Indiana, United States
| | - Yidi Wu
- Department of Anatomy, Cell Biology and Physiology, Indiana University School of Medicine, Indianapolis, Indiana, United States
| | - Susan J Gunst
- Department of Anatomy, Cell Biology and Physiology, Indiana University School of Medicine, Indianapolis, Indiana, United States
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5
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Liu W, Huang X, Luo W, Liu X, Chen W. The Role of Paxillin Aberrant Expression in Cancer and Its Potential as a Target for Cancer Therapy. Int J Mol Sci 2023; 24:ijms24098245. [PMID: 37175948 PMCID: PMC10179295 DOI: 10.3390/ijms24098245] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 04/21/2023] [Accepted: 05/02/2023] [Indexed: 05/15/2023] Open
Abstract
Paxillin is a multi-domain adaptor protein. As an important member of focal adhesion (FA) and a participant in regulating cell movement, paxillin plays an important role in physiological processes such as nervous system development, embryonic development, and vascular development. However, increasing evidence suggests that paxillin is aberrantly expressed in many cancers. Many scholars have also recognized that the abnormal expression of paxillin is related to the prognosis, metastases, invasion, survival, angiogenesis, and other aspects of malignant tumors, suggesting that paxillin may be a potential cancer therapeutic target. Therefore, the study of how aberrant paxillin expression affects the process of tumorigenesis and metastasis will help to develop more efficacious antitumor drugs. Herein, we review the structure of paxillin and its function and expression in tumors, paying special attention to the multifaceted effects of paxillin on tumors, the mechanism of tumorigenesis and progression, and its potential role in tumor therapy. We also hope to provide a reference for the clinical prognosis and development of new tumor therapeutic targets.
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Affiliation(s)
- Weixian Liu
- Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Institute of Aging Research, Guangdong Medical University, Dongguan 523808, China
- Institute of Biochemistry and Molecular Biology, Guangdong Medical University, Zhanjiang 524023, China
| | - Xinxian Huang
- Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Institute of Aging Research, Guangdong Medical University, Dongguan 523808, China
- Institute of Biochemistry and Molecular Biology, Guangdong Medical University, Zhanjiang 524023, China
| | - Weizhao Luo
- Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Institute of Aging Research, Guangdong Medical University, Dongguan 523808, China
- Institute of Biochemistry and Molecular Biology, Guangdong Medical University, Zhanjiang 524023, China
| | - Xinguang Liu
- Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Institute of Aging Research, Guangdong Medical University, Dongguan 523808, China
- Institute of Biochemistry and Molecular Biology, Guangdong Medical University, Zhanjiang 524023, China
| | - Weichun Chen
- Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Institute of Aging Research, Guangdong Medical University, Dongguan 523808, China
- Institute of Biochemistry and Molecular Biology, Guangdong Medical University, Zhanjiang 524023, China
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6
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Tischenko K, Brill-Karniely Y, Steinberg E, Segev-Yekutiel H, Benny O. Surface physical cues mediate the uptake of foreign particles by cancer cells. APL Bioeng 2023; 7:016113. [PMID: 36960390 PMCID: PMC10030191 DOI: 10.1063/5.0138245] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Accepted: 03/02/2023] [Indexed: 03/22/2023] Open
Abstract
Cancer phenotypes are often associated with changes in the mechanical states of cells and their microenvironments. Numerous studies have established correlations between cancer cell malignancy and cell deformability at the single-cell level. The mechanical deformation of cells is required for the internalization of large colloidal particles. Compared to normal epithelial cells, cancer cells show higher capacities to distort their shapes during the engulfment of external particles, thus performing phagocytic-like processes more efficiently. This link between cell deformability and particle uptake suggests that the cell's adherence state may affect this particle uptake, as cells become stiffer when plated on a more rigid substrate and vice versa. Based on this, we hypothesized that cancer cells of the same origin, which are subjected to external mechanical cues through attachment to surfaces with varying rigidities, may express different capacities to uptake foreign particles. The effects of substrate rigidity on cancer cell uptake of inert particles (0.8 and 2.4 μm) were examined using surfaces with physiologically relevant rigidities (from 0.5 to 64 kPa). Our data demonstrate a wave-like ("meandering") dependence of cell uptake on the rigidity of the culture substrate explained by a superposition of opposing physical and biological effects. The uptake patterns were inversely correlated with the expression of phosphorylated paxillin, indicating that the initial passive particle absorbance is the primary limiting step toward complete uptake. Overall, our findings may provide a foundation for mechanical rationalization of particle uptake design.
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Affiliation(s)
- Katerina Tischenko
- Institute for Drug Research, The School of Pharmacy, Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem 9112001 Israel
| | - Yifat Brill-Karniely
- Institute for Drug Research, The School of Pharmacy, Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem 9112001 Israel
| | - Eliana Steinberg
- Institute for Drug Research, The School of Pharmacy, Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem 9112001 Israel
| | - Hadas Segev-Yekutiel
- The Core Research Facility, Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem 9112001 Israel
| | - Ofra Benny
- Institute for Drug Research, The School of Pharmacy, Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem 9112001 Israel
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7
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Xue Q, Varady SR, Waddell TQA, Roman MR, Carrington J, Roh-Johnson M. Lack of Paxillin phosphorylation promotes single-cell migration in vivo. J Cell Biol 2023; 222:213850. [PMID: 36723624 PMCID: PMC9929932 DOI: 10.1083/jcb.202206078] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Revised: 11/30/2022] [Accepted: 01/11/2023] [Indexed: 02/02/2023] Open
Abstract
Focal adhesions are structures that physically link the cell to the extracellular matrix for cell migration. Although cell culture studies have provided a wealth of information regarding focal adhesion biology, it is critical to understand how focal adhesions are dynamically regulated in their native environment. We developed a zebrafish system to visualize focal adhesion structures during single-cell migration in vivo. We find that a key site of phosphoregulation (Y118) on Paxillin exhibits reduced phosphorylation in migrating cells in vivo compared to in vitro. Furthermore, expression of a non-phosphorylatable version of Y118-Paxillin increases focal adhesion disassembly and promotes cell migration in vivo, despite inhibiting cell migration in vitro. Using a mouse model, we further find that the upstream kinase, focal adhesion kinase, is downregulated in cells in vivo, and cells expressing non-phosphorylatable Y118-Paxillin exhibit increased activation of the CRKII-DOCK180/RacGEF pathway. Our findings provide significant new insight into the intrinsic regulation of focal adhesions in cells migrating in their native environment.
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Affiliation(s)
- Qian Xue
- https://ror.org/03r0ha626Department of Biochemistry, University of Utah, Salt Lake City, UT, USA
| | - Sophia R.S. Varady
- https://ror.org/03r0ha626Department of Biochemistry, University of Utah, Salt Lake City, UT, USA
| | | | - Mackenzie R. Roman
- https://ror.org/03r0ha626Department of Biochemistry, University of Utah, Salt Lake City, UT, USA
| | - James Carrington
- https://ror.org/03r0ha626Department of Biochemistry, University of Utah, Salt Lake City, UT, USA,School of Medicine, University of Utah, Salt Lake City, UT, USA
| | - Minna Roh-Johnson
- https://ror.org/03r0ha626Department of Biochemistry, University of Utah, Salt Lake City, UT, USA
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8
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The explorations of dynamic interactions of paxillin at the focal adhesions. BIOCHIMICA ET BIOPHYSICA ACTA. PROTEINS AND PROTEOMICS 2022; 1870:140825. [PMID: 35926716 DOI: 10.1016/j.bbapap.2022.140825] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Revised: 07/16/2022] [Accepted: 07/27/2022] [Indexed: 11/20/2022]
Abstract
Paxillin is one of the most important adapters in integrin-mediated adhesions that performs numerous crucial functions relying on its dynamic interactions. Its structural behavior serves different purposes, providing a base for several activities. The various domains of paxillin display different functions in the whole process of cell movements and have a significant role in cell adhesion, migration, signal transmission, and protein-protein interactions. On the other hand, some paxillin-associated proteins provide a unique spatiotemporal mechanism for regulating its dynamic characteristics in the tissue homeostasis and make it a more complex and decisive protein at the focal adhesions. This review briefly describes the structural adaptations and molecular mechanisms of recruitment of paxillin into adhesions, explains paxillin's binding dynamics and impact on adhesion stability and turnover, and reveals a variety of paxillin-associated regulatory mechanisms and how paxillin is embedded into the signaling networks.
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9
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Stelling-Férez J, Gabaldón JA, Nicolás FJ. Oleanolic acid stimulation of cell migration involves a biphasic signaling mechanism. Sci Rep 2022; 12:15065. [PMID: 36064555 PMCID: PMC9445025 DOI: 10.1038/s41598-022-17553-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Accepted: 07/27/2022] [Indexed: 11/09/2022] Open
Abstract
Cell migration is a critical process for wound healing, a physiological phenomenon needed for proper skin restoration after injury. Wound healing can be compromised under pathological conditions. Natural bioactive terpenoids have shown promising therapeutic properties in wound healing. Oleanolic acid (OA), a triterpenoid, enhances in vitro and in vivo cell migration. However, the underlying signaling mechanisms and pathways triggered by OA are poorly understood. We have previously shown that OA activates epidermal growth factor receptor (EGFR) and downstream effectors such as mitogen-activated protein (MAP) kinase cascade and c-Jun N-terminal kinase (JNK), leading to c-Jun transcription factor phosphorylation, all of which are involved in migration. We performed protein expression or migration front protein subcellular localization assays, which showed that OA induces c-Jun activation and its nuclear translocation, which precisely overlaps at wound-edge cells. Furthermore, c-Jun phosphorylation was independent of EGFR activation. Additionally, OA promoted actin cytoskeleton and focal adhesion (FA) dynamization. In fact, OA induced the recruitment of regulator proteins to FAs to dynamize these structures during migration. Moreover, OA changed paxillin distribution and activated focal adhesion kinase (FAK) at focal adhesions (FAs). The molecular implications of these observations are discussed.
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Affiliation(s)
- Javier Stelling-Férez
- Department of Nutrition and Food Technology, Health Sciences PhD Program, Universidad Católica de Murcia (UCAM), Campus de los Jerónimos nº135, Guadalupe, 30107, Murcia, Spain.,Regeneration, Molecular Oncology and TGF-ß, Instituto Murciano de Investigación Biosanitaria (IMIB)-Arrixaca, Hospital Clínico Universitario Virgen de la Arrixaca, El Palmar, Murcia, Spain
| | - José Antonio Gabaldón
- Department of Nutrition and Food Technology, Health Sciences PhD Program, Universidad Católica de Murcia (UCAM), Campus de los Jerónimos nº135, Guadalupe, 30107, Murcia, Spain
| | - Francisco José Nicolás
- Regeneration, Molecular Oncology and TGF-ß, Instituto Murciano de Investigación Biosanitaria (IMIB)-Arrixaca, Hospital Clínico Universitario Virgen de la Arrixaca, El Palmar, Murcia, Spain.
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10
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Feng D, Gao P, Henley N, Dubuissez M, Chen N, Laurin LP, Royal V, Pichette V, Gerarduzzi C. SMOC2 promotes an epithelial-mesenchymal transition and a pro-metastatic phenotype in epithelial cells of renal cell carcinoma origin. Cell Death Dis 2022; 13:639. [PMID: 35869056 PMCID: PMC9307531 DOI: 10.1038/s41419-022-05059-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 06/22/2022] [Accepted: 07/01/2022] [Indexed: 01/21/2023]
Abstract
Renal Cell Carcinoma (RCC) is the most common form of all renal cancer cases, and well-known for its highly aggressive metastatic behavior. SMOC2 is a recently described non-structural component of the extracellular matrix (ECM) that is highly expressed during tissue remodeling processes with emerging roles in cancers, yet its role in RCC remains elusive. Using gene expression profiles from patient samples, we identified SMOC2 as being significantly expressed in RCC tissue compared to normal renal tissue, which correlated with shorter RCC patient survival. Specifically, de novo protein synthesis of SMOC2 was shown to be much higher in the tubular epithelial cells of patients with biopsy-proven RCC. More importantly, we provide evidence of SMOC2 triggering kidney epithelial cells into an epithelial-to-mesenchymal transition (EMT), a phenotype known to promote metastasis. We found that SMOC2 induced mesenchymal-like morphology and activities in both RCC and non-RCC kidney epithelial cell lines. Mechanistically, treatment of RCC cell lines ACHN and 786-O with SMOC2 (recombinant and enforced expression) caused a significant increase in EMT-markers, -matrix production, -proliferation, and -migration, which were inhibited by targeting SMOC2 by siRNA. We further characterized SMOC2 activation of EMT to occur through the integrin β3, FAK and paxillin pathway. The proliferation and metastatic potential of SMOC2 overexpressing ACHN and 786-O cell lines were validated in vivo by their significantly higher tumor growth in kidneys and systemic dissemination into other organs when compared to their respective controls. In principle, understanding the impact that SMOC2 has on EMT may lead to more evidence-based treatments and biomarkers for RCC metastasis.
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Affiliation(s)
- Daniel Feng
- grid.14848.310000 0001 2292 3357Département de Pharmacologie et Physiologie, Faculté de Médecine, Université de Montréal, Montréal, Québec Canada ,grid.14848.310000 0001 2292 3357Centre de recherche de l’Hôpital Maisonneuve-Rosemont, Faculté de Médecine, Centre affilié à l’Université de Montréal, Montréal, Québec Canada
| | - Peng Gao
- grid.14848.310000 0001 2292 3357Département de Pharmacologie et Physiologie, Faculté de Médecine, Université de Montréal, Montréal, Québec Canada ,grid.14848.310000 0001 2292 3357Centre de recherche de l’Hôpital Maisonneuve-Rosemont, Faculté de Médecine, Centre affilié à l’Université de Montréal, Montréal, Québec Canada
| | - Nathalie Henley
- grid.14848.310000 0001 2292 3357Centre de recherche de l’Hôpital Maisonneuve-Rosemont, Faculté de Médecine, Centre affilié à l’Université de Montréal, Montréal, Québec Canada
| | - Marion Dubuissez
- grid.14848.310000 0001 2292 3357Centre de recherche de l’Hôpital Maisonneuve-Rosemont, Faculté de Médecine, Centre affilié à l’Université de Montréal, Montréal, Québec Canada
| | - Nan Chen
- grid.17091.3e0000 0001 2288 9830Faculty of Science, University of British Columbia, Vancouver, British Columbia Canada
| | - Louis-Philippe Laurin
- grid.14848.310000 0001 2292 3357Centre de recherche de l’Hôpital Maisonneuve-Rosemont, Faculté de Médecine, Centre affilié à l’Université de Montréal, Montréal, Québec Canada
| | - Virginie Royal
- grid.14848.310000 0001 2292 3357Centre de recherche de l’Hôpital Maisonneuve-Rosemont, Faculté de Médecine, Centre affilié à l’Université de Montréal, Montréal, Québec Canada
| | - Vincent Pichette
- grid.14848.310000 0001 2292 3357Département de Pharmacologie et Physiologie, Faculté de Médecine, Université de Montréal, Montréal, Québec Canada ,grid.14848.310000 0001 2292 3357Centre de recherche de l’Hôpital Maisonneuve-Rosemont, Faculté de Médecine, Centre affilié à l’Université de Montréal, Montréal, Québec Canada ,grid.14848.310000 0001 2292 3357Département de Médecine, Faculté de Médecine, Université de Montréal, Montréal, Québec Canada
| | - Casimiro Gerarduzzi
- grid.14848.310000 0001 2292 3357Département de Pharmacologie et Physiologie, Faculté de Médecine, Université de Montréal, Montréal, Québec Canada ,grid.14848.310000 0001 2292 3357Centre de recherche de l’Hôpital Maisonneuve-Rosemont, Faculté de Médecine, Centre affilié à l’Université de Montréal, Montréal, Québec Canada ,grid.14848.310000 0001 2292 3357Département de Médecine, Faculté de Médecine, Université de Montréal, Montréal, Québec Canada
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11
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Bachmann M, Skripka A, Weißenbruch K, Wehrle-Haller B, Bastmeyer M. Phosphorylated paxillin and phosphorylated FAK constitute subregions within focal adhesions. J Cell Sci 2022; 135:275040. [PMID: 35343568 DOI: 10.1242/jcs.258764] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Accepted: 03/17/2022] [Indexed: 11/20/2022] Open
Abstract
Integrin-mediated adhesions are convergence points of multiple signaling pathways. Their inner structure and their diverse functions can be studied with super-resolution microscopy. Here, we examined the spatial organization within focal adhesion by analyzing several adhesion proteins with structured illumination microscopy (SIM). We found that phosphorylated paxillin (pPax) and phosphorylated focal adhesion kinase (pFAK) form spot-like, spatially defined clusters within adhesions in several cell lines and confirmed these findings with additional super-resolution techniques. These clusters showed a more regular separation from each other compared to more randomly distributed labels of general FAK or paxillin. Mutational analysis indicated that the active (open) FAK conformation is a prerequisite for the pattern formation of pFAK. Live-cell super-resolution imaging revealed that organization in clusters is preserved over time for FAK constructs; however, distance between clusters is dynamic for FAK, while paxillin is more stable. Combined, these data introduce spatial clusters of pPax and pFAK as substructures in adhesions and highlight the relevance of paxillin-FAK binding for establishing a regular substructure in focal adhesions.
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Affiliation(s)
- Michael Bachmann
- Department for Cell Physiology and Metabolism, University of Geneva, Geneva, Switzerland.,Zoological Institute, Cell- and Neurobiology, Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany
| | - Artiom Skripka
- Zoological Institute, Cell- and Neurobiology, Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany
| | - Kai Weißenbruch
- Zoological Institute, Cell- and Neurobiology, Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany.,Institute of Functional Interfaces (IFG), Karlsruhe Institute of Technology (KIT), 76128 Karlsruhe, Germany
| | - Bernhard Wehrle-Haller
- Department for Cell Physiology and Metabolism, University of Geneva, Geneva, Switzerland
| | - Martin Bastmeyer
- Zoological Institute, Cell- and Neurobiology, Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany.,Institute for Biological and Chemical Systems - Biological Information Processing (IBCS-BIP), Karlsruhe Institute of Technology (KIT), 76344 Eggenstein-Leopoldshafen, Germany
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12
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Application of Feature Point Matching Technology to Identify Images of Free-Swimming Tuna Schools in a Purse Seine Fishery. JOURNAL OF MARINE SCIENCE AND ENGINEERING 2021. [DOI: 10.3390/jmse9121357] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Tuna fish school detection provides information on the fishing decisions of purse seine fleets. Here, we present a recognition system that included fish shoal image acquisition, point extraction, point matching, and data storage. Points are a crucial characteristic for images of free-swimming tuna schools, and point algorithm analysis and point matching were studied for their applications in fish shoal recognition. The feature points were obtained by using one of the best point algorithms (scale invariant feature transform, speeded up robust features, oriented fast and rotated brief). The k-nearest neighbors (KNN) algorithm uses ‘feature similarity’ to predict the values of new points, which means that new data points will be assigned a value based on how closely they match the points that exist in the database. Finally, we tested the model, and the experimental results show that the proposed method can accurately and effectively recognize tuna free-swimming schools.
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13
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González Wusener AE, González Á, Perez Collado ME, Maza MR, General IJ, Arregui CO. Protein tyrosine phosphatase 1B targets focal adhesion kinase and paxillin in cell-matrix adhesions. J Cell Sci 2021; 134:272564. [PMID: 34553765 DOI: 10.1242/jcs.258769] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Accepted: 09/14/2021] [Indexed: 11/20/2022] Open
Abstract
Protein tyrosine phosphatase 1B (PTP1B, also known as PTPN1) is an established regulator of cell-matrix adhesion and motility. However, the nature of substrate targets at adhesion sites remains to be validated. Here, we used bimolecular fluorescence complementation assays, in combination with a substrate trapping mutant of PTP1B, to directly examine whether relevant phosphotyrosines on paxillin and focal adhesion kinase (FAK, also known as PTK2) are substrates of the phosphatase in the context of cell-matrix adhesion sites. We found that the formation of catalytic complexes at cell-matrix adhesions requires intact tyrosine residues Y31 and Y118 on paxillin, and the localization of FAK at adhesion sites. Additionally, we found that PTP1B specifically targets Y925 on the focal adhesion targeting (FAT) domain of FAK at adhesion sites. Electrostatic analysis indicated that dephosphorylation of this residue promotes the closed conformation of the FAT 4-helix bundle and its interaction with paxillin at adhesion sites.
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Affiliation(s)
- Ana E González Wusener
- Instituto de Investigaciones Biotecnológicas, Universidad Nacional de San Martín and Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), San Martín, Buenos Aires 1650, Argentina
| | - Ángela González
- Instituto de Investigaciones Biotecnológicas, Universidad Nacional de San Martín and Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), San Martín, Buenos Aires 1650, Argentina
| | - María E Perez Collado
- Instituto de Investigaciones Biotecnológicas, Universidad Nacional de San Martín and Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), San Martín, Buenos Aires 1650, Argentina
| | - Melina R Maza
- Escuela de Ciencia y Tecnología, Universidad Nacional de San Martin, Instituto de Ciencias Físicas and CONICET, San Martin, Buenos Aires 1650, Argentina
| | - Ignacio J General
- Escuela de Ciencia y Tecnología, Universidad Nacional de San Martin, Instituto de Ciencias Físicas and CONICET, San Martin, Buenos Aires 1650, Argentina
| | - Carlos O Arregui
- Instituto de Investigaciones Biotecnológicas, Universidad Nacional de San Martín and Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), San Martín, Buenos Aires 1650, Argentina
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14
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Fu P, Epshtein Y, Ramchandran R, Mascarenhas JB, Cress AE, Jacobson J, Garcia JGN, Natarajan V. Essential role for paxillin tyrosine phosphorylation in LPS-induced mitochondrial fission, ROS generation and lung endothelial barrier loss. Sci Rep 2021; 11:17546. [PMID: 34475475 PMCID: PMC8413352 DOI: 10.1038/s41598-021-97006-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Accepted: 08/12/2021] [Indexed: 11/09/2022] Open
Abstract
We have shown that both reactive oxygen species (ROS) and paxillin tyrosine phosphorylation regulate LPS-induced human lung endothelial permeability. Mitochondrial ROS (mtROS) is known to increase endothelial cell (EC) permeability which requires dynamic change in mitochondrial morphology, events that are likely to be regulated by paxillin. Here, we investigated the role of paxillin and its tyrosine phosphorylation in regulating LPS-induced mitochondrial dynamics, mtROS production and human lung microvascular EC (HLMVEC) dysfunction. LPS, in a time-dependent manner, induced higher levels of ROS generation in the mitochondria compared to cytoplasm or nucleus. Down-regulation of paxillin expression with siRNA or ecto-expression of paxillin Y31F or Y118F mutant plasmids attenuated LPS-induced mtROS in HLMVECs. Pre-treatment with MitoTEMPO, a scavenger of mtROS, attenuated LPS-induced mtROS, endothelial permeability and VE-cadherin phosphorylation. Further, LPS-induced mitochondrial fission in HLMVECs was attenuated by both a paxillin siRNA, and paxillin Y31F/Y118F mutant. LPS stimulated phosphorylation of dynamin-related protein (DRP1) at S616, which was also attenuated by paxillin siRNA, and paxillinY31/Y118 mutants. Inhibition of DRP1 phosphorylation by P110 attenuated LPS-induced mtROS and endothelial permeability. LPS challenge of HLMVECs enhanced interaction between paxillin, ERK, and DRP1, and inhibition of ERK1/2 activation with PD98059 blocked mitochondrial fission. Taken together, these results suggest a key role for paxillin tyrosine phosphorylation in LPS-induced mitochondrial fission, mtROS generation and EC barrier dysfunction.
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Affiliation(s)
- Panfeng Fu
- Department of Pharmacology, University of Illinois at Chicago, COMRB Room # 3137, 909, South Wolcott Avenue, Chicago, IL, 60612, USA. .,The Affiliated Hospital of Medical School, Medical School of Ningbo University, 247 Renmin Road, Ningbo, China.
| | - Yulia Epshtein
- Department of Medicine, University of Illinois at Chicago, Chicago, IL, USA
| | - Ramaswamy Ramchandran
- Department of Pharmacology, University of Illinois at Chicago, COMRB Room # 3137, 909, South Wolcott Avenue, Chicago, IL, 60612, USA
| | - Joseph B Mascarenhas
- Department of Medicine, College of Medicine, University of Arizona Health Sciences, Tucson, AZ, USA
| | - Anne E Cress
- Departments of Cellular and Molecular Medicine, University of Arizona Health Sciences, Tucson, AZ, USA.,Department of Medicine, College of Medicine, University of Arizona Health Sciences, Tucson, AZ, USA
| | - Jeffrey Jacobson
- Department of Medicine, University of Illinois at Chicago, Chicago, IL, USA
| | - Joe G N Garcia
- Department of Medicine, College of Medicine, University of Arizona Health Sciences, Tucson, AZ, USA
| | - Viswanathan Natarajan
- Department of Pharmacology, University of Illinois at Chicago, COMRB Room # 3137, 909, South Wolcott Avenue, Chicago, IL, 60612, USA. .,Department of Medicine, University of Illinois at Chicago, Chicago, IL, USA.
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15
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Park T. Crk and CrkL as Therapeutic Targets for Cancer Treatment. Cells 2021; 10:cells10040739. [PMID: 33801580 PMCID: PMC8065463 DOI: 10.3390/cells10040739] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 03/20/2021] [Accepted: 03/24/2021] [Indexed: 02/03/2023] Open
Abstract
Crk and CrkL are cellular counterparts of the viral oncoprotein v-Crk. Crk and CrkL are overexpressed in many types of human cancer, correlating with poor prognosis. Furthermore, gene knockdown and knockout of Crk and CrkL in tumor cell lines suppress tumor cell functions, including cell proliferation, transformation, migration, invasion, epithelial-mesenchymal transition, resistance to chemotherapy drugs, and in vivo tumor growth and metastasis. Conversely, overexpression of tumor cells with Crk or CrkL enhances tumor cell functions. Therefore, Crk and CrkL have been proposed as therapeutic targets for cancer treatment. However, it is unclear whether Crk and CrkL make distinct or overlapping contributions to tumor cell functions in various cancer types because Crk or CrkL have been examined independently in most studies. Two recent studies using colorectal cancer and glioblastoma cells clearly demonstrated that Crk and CrkL need to be ablated individually and combined to understand distinct and overlapping roles of the two proteins in cancer. A comprehensive understanding of individual and overlapping roles of Crk and CrkL in tumor cell functions is necessary to develop effective therapeutic strategies. This review systematically discusses crucial functions of Crk and CrkL in tumor cell functions and provides new perspectives on targeting Crk and CrkL in cancer therapy.
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Affiliation(s)
- Taeju Park
- Children's Mercy Research Institute, Children's Mercy Kansas City, Department of Pediatrics, University of Missouri Kansas City School of Medicine, Kansas City, MO 64108, USA
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16
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Paxillin Is Required for Proper Spinal Motor Axon Growth into the Limb. J Neurosci 2021; 41:3808-3821. [PMID: 33727334 DOI: 10.1523/jneurosci.2863-20.2021] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Revised: 03/04/2021] [Accepted: 03/07/2021] [Indexed: 11/21/2022] Open
Abstract
To assemble the functional circuits of the nervous system, the neuronal axonal growth cones must be precisely guided to their proper targets, which can be achieved through cell-surface guidance receptor activation by ligand binding in the periphery. We investigated the function of paxillin, a focal adhesion protein, as an essential growth cone guidance intermediary in the context of spinal lateral motor column (LMC) motor axon trajectory selection in the limb mesenchyme. Using in situ mRNA detection, we first show paxillin expression in LMC neurons of chick and mouse embryos at the time of spinal motor axon extension into the limb. Paxillin loss-of-function and gain-of-function using in ovo electroporation in chick LMC neurons, of either sex, perturbed LMC axon trajectory selection, demonstrating an essential role of paxillin in motor axon guidance. In addition, a neuron-specific paxillin deletion in mice led to LMC axon trajectory selection errors. We also show that knocking down paxillin attenuates the growth preference of LMC neurites against ephrins in vitro, and erythropoietin-producing human hepatocellular (Eph)-mediated retargeting of LMC axons in vivo, suggesting paxillin involvement in Eph-mediated LMC motor axon guidance. Finally, both paxillin knockdown and ectopic expression of a nonphosphorylable paxillin mutant attenuated the retargeting of LMC axons caused by Src overexpression, implicating paxillin as a Src target in Eph signal relay in this context. In summary, our findings demonstrate that paxillin is required for motor axon guidance and suggest its essential role in the ephrin-Eph signaling pathway resulting in motor axon trajectory selection.SIGNIFICANCE STATEMENT During the development of neural circuits, precise connections need to be established among neurons or between neurons and their muscle targets. A protein family found in neurons, Eph, is essential at different stages of neural circuit formation, including nerve outgrowth and pathfinding, and is proposed to mediate the onset and progression of several neurodegenerative diseases, such as Alzheimer's disease. To investigate how Ephs relay their signals to mediate nerve growth, we investigated the function of a molecule called paxillin and found it important for the development of spinal nerve growth toward their muscle targets, suggesting its role as an effector of Eph signals. Our work could thus provide new information on how neuromuscular connectivity is properly established during embryonic development.
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17
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Manipulation of Focal Adhesion Signaling by Pathogenic Microbes. Int J Mol Sci 2021; 22:ijms22031358. [PMID: 33572997 PMCID: PMC7866387 DOI: 10.3390/ijms22031358] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Revised: 01/25/2021] [Accepted: 01/27/2021] [Indexed: 12/22/2022] Open
Abstract
Focal adhesions (FAs) serve as dynamic signaling hubs within the cell. They connect intracellular actin to the extracellular matrix (ECM) and respond to environmental cues. In doing so, these structures facilitate important processes such as cell-ECM adhesion and migration. Pathogenic microbes often modify the host cell actin cytoskeleton in their pursuit of an ideal replicative niche or during invasion to facilitate uptake. As actin-interfacing structures, FA dynamics are also intimately tied to actin cytoskeletal organization. Indeed, exploitation of FAs is another avenue by which pathogenic microbes ensure their uptake, survival and dissemination. This is often achieved through the secretion of effector proteins which target specific protein components within the FA. Molecular mimicry of the leucine-aspartic acid (LD) motif or vinculin-binding domains (VBDs) commonly found within FA proteins is a common microbial strategy. Other effectors may induce post-translational modifications to FA proteins through the regulation of phosphorylation sites or proteolytic cleavage. In this review, we present an overview of the regulatory mechanisms governing host cell FAs, and provide examples of how pathogenic microbes have evolved to co-opt them to their own advantage. Recent technological advances pose exciting opportunities for delving deeper into the mechanistic details by which pathogenic microbes modify FAs.
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18
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Schmidt A, Liebelt G, Nießner F, von Woedtke T, Bekeschus S. Gas plasma-spurred wound healing is accompanied by regulation of focal adhesion, matrix remodeling, and tissue oxygenation. Redox Biol 2021; 38:101809. [PMID: 33271456 PMCID: PMC7710641 DOI: 10.1016/j.redox.2020.101809] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Revised: 11/17/2020] [Accepted: 11/19/2020] [Indexed: 12/05/2022] Open
Abstract
In response to injury, efficient migration of skin cells to rapidly close the wound and restore barrier function requires a range of coordinated processes in cell spreading and migration. Gas plasma technology produces therapeutic reactive species that promote skin regeneration by driving proliferation and angiogenesis. However, the underlying molecular mechanisms regulating gas plasma-aided cell adhesion and matrix remodeling essential for wound closure remain elusive. Here, we combined in vitro analyses in primary dermal fibroblasts isolated from murine skin with in vivo studies in a murine wound model to demonstrate that gas plasma treatment changed phosphorylation of signaling molecules such as focal adhesion kinase and paxillin α in adhesion-associated complexes. In addition to cell spreading and migration, gas plasma exposure affected cell surface adhesion receptors (e.g., integrinα5β1, syndecan 4), structural proteins (e.g., vinculin, talin, actin), and transcription of genes associated with differentiation markers of fibroblasts-to-myofibroblasts and epithelial-to-mesenchymal transition, cellular protrusions, fibronectin fibrillogenesis, matrix metabolism, and matrix metalloproteinase activity. Finally, we documented that gas plasma exposure increased tissue oxygenation and skin perfusion during ROS-driven wound healing. Altogether, these results provide critical insights into the molecular machinery of gas plasma-assisted wound healing mechanisms.
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Affiliation(s)
- Anke Schmidt
- ZIK Plasmatis, Leibniz Institute for Plasma Science and Technology (INP), Felix-Hausdorff-Str. 2, 17489, Greifswald, Germany.
| | - Grit Liebelt
- ZIK Plasmatis, Leibniz Institute for Plasma Science and Technology (INP), Felix-Hausdorff-Str. 2, 17489, Greifswald, Germany
| | - Felix Nießner
- ZIK Plasmatis, Leibniz Institute for Plasma Science and Technology (INP), Felix-Hausdorff-Str. 2, 17489, Greifswald, Germany
| | - Thomas von Woedtke
- ZIK Plasmatis, Leibniz Institute for Plasma Science and Technology (INP), Felix-Hausdorff-Str. 2, 17489, Greifswald, Germany; Department of Hygiene and Environmental Medicine, Greifswald University Medical Center, Ferdinand-Sauerbruch-Str., 17475, Greifswald, Germany
| | - Sander Bekeschus
- ZIK Plasmatis, Leibniz Institute for Plasma Science and Technology (INP), Felix-Hausdorff-Str. 2, 17489, Greifswald, Germany.
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19
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Alpha KM, Xu W, Turner CE. Paxillin family of focal adhesion adaptor proteins and regulation of cancer cell invasion. INTERNATIONAL REVIEW OF CELL AND MOLECULAR BIOLOGY 2020; 355:1-52. [PMID: 32859368 PMCID: PMC7737098 DOI: 10.1016/bs.ircmb.2020.05.003] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The paxillin family of proteins, including paxillin, Hic-5, and leupaxin, are focal adhesion adaptor/scaffolding proteins which localize to cell-matrix adhesions and are important in cell adhesion and migration of both normal and cancer cells. Historically, the role of these proteins in regulating the actin cytoskeleton through focal adhesion-mediated signaling has been well documented. However, studies in recent years have revealed additional functions in modulating the microtubule and intermediate filament cytoskeletons to affect diverse processes including cell polarization, vesicle trafficking and mechanosignaling. Expression of paxillin family proteins in stromal cells is also important in regulating tumor cell migration and invasion through non-cell autonomous effects on the extracellular matrix. Both paxillin and Hic-5 can also influence gene expression through a variety of mechanisms, while their own expression is frequently dysregulated in various cancers. Accordingly, these proteins may serve as valuable targets for novel diagnostic and treatment approaches in cancer.
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Affiliation(s)
- Kyle M Alpha
- Department of Cell and Developmental Biology, SUNY Upstate Medical University, Syracuse, NY, United States
| | - Weiyi Xu
- Department of Cell and Developmental Biology, SUNY Upstate Medical University, Syracuse, NY, United States
| | - Christopher E Turner
- Department of Cell and Developmental Biology, SUNY Upstate Medical University, Syracuse, NY, United States.
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20
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Ilijazi D, Pulverer W, Ertl IE, Lemberger U, Kimura S, Abufaraj M, D’Andrea D, Pradere B, Bruchbacher A, Graf A, Soria F, Susani M, Haitel A, Molinaro L, Pycha A, Comploj E, Pabinger S, Weinhäusel A, Egger G, Shariat SF, Hassler MR. Discovery of Molecular DNA Methylation-Based Biomarkers through Genome-Wide Analysis of Response Patterns to BCG for Bladder Cancer. Cells 2020; 9:cells9081839. [PMID: 32764425 PMCID: PMC7464079 DOI: 10.3390/cells9081839] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Revised: 07/31/2020] [Accepted: 08/03/2020] [Indexed: 01/11/2023] Open
Abstract
Background: Bacillus Calmette-Guérin (BCG) immunotherapy, the standard adjuvant intravesical therapy for some intermediate and most high-risk non-muscle invasive bladder cancers (NMIBCs), suffers from a heterogenous response rate. Molecular markers to help guide responses are scarce and currently not used in the clinical setting. Methods: To identify novel biomarkers and pathways involved in response to BCG immunotherapy, we performed a genome-wide DNA methylation analysis of NMIBCs before BCG therapy. Genome-wide DNA methylation profiles of DNA isolated from tumors of 26 BCG responders and 27 failures were obtained using the Infinium MethylationEPIC BeadChip. Results: Distinct DNA methylation patterns were found by genome-wide analysis in the two groups. Differentially methylated CpG sites were predominantly located in gene promoters and gene bodies associated with bacterial invasion of epithelial cells, chemokine signaling, endocytosis, and focal adhesion. In total, 40 genomic regions with a significant difference in methylation between responders and failures were detected. The differential methylation state of six of these regions, localized in the promoters of the genes GPR158, KLF8, C12orf42, WDR44, FLT1, and CHST11, were internally validated by bisulfite-sequencing. GPR158 promoter hypermethylation was the best predictor of BCG failure with an AUC of 0.809 (p-value < 0.001). Conclusions: Tumors from BCG responders and BCG failures harbor distinct DNA methylation profiles. Differentially methylated DNA regions were detected in genes related to pathways involved in bacterial invasion of cells or focal adhesion. We identified candidate DNA methylation biomarkers that may help to predict patient prognosis after external validation in larger, well-designed cohorts.
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Affiliation(s)
- Dafina Ilijazi
- Department of Urology, Medical University of Vienna, 1090 Vienna, Austria; (D.I.); (I.E.E.); (U.L.); (S.K.); (M.A.); (D.D.); (B.P.); (A.B.); (A.G.); (F.S.)
| | - Walter Pulverer
- AIT—Austrian Institute of Technology GmbH, Health & Environment Department, Molecular Diagnostics, 1210 Vienna, Austria; (W.P.); (S.P.); (A.W.)
| | - Iris E. Ertl
- Department of Urology, Medical University of Vienna, 1090 Vienna, Austria; (D.I.); (I.E.E.); (U.L.); (S.K.); (M.A.); (D.D.); (B.P.); (A.B.); (A.G.); (F.S.)
| | - Ursula Lemberger
- Department of Urology, Medical University of Vienna, 1090 Vienna, Austria; (D.I.); (I.E.E.); (U.L.); (S.K.); (M.A.); (D.D.); (B.P.); (A.B.); (A.G.); (F.S.)
| | - Shoji Kimura
- Department of Urology, Medical University of Vienna, 1090 Vienna, Austria; (D.I.); (I.E.E.); (U.L.); (S.K.); (M.A.); (D.D.); (B.P.); (A.B.); (A.G.); (F.S.)
- Department of Urology, Jikei University School of Medicine, Tokyo 105-8461, Japan
| | - Mohammad Abufaraj
- Department of Urology, Medical University of Vienna, 1090 Vienna, Austria; (D.I.); (I.E.E.); (U.L.); (S.K.); (M.A.); (D.D.); (B.P.); (A.B.); (A.G.); (F.S.)
- Division of Urology, Department of Special Surgery, The University of Jordan, Amman 11942, Jordan
| | - David D’Andrea
- Department of Urology, Medical University of Vienna, 1090 Vienna, Austria; (D.I.); (I.E.E.); (U.L.); (S.K.); (M.A.); (D.D.); (B.P.); (A.B.); (A.G.); (F.S.)
| | - Benjamin Pradere
- Department of Urology, Medical University of Vienna, 1090 Vienna, Austria; (D.I.); (I.E.E.); (U.L.); (S.K.); (M.A.); (D.D.); (B.P.); (A.B.); (A.G.); (F.S.)
- Department of Urology, CHRU Tours, Francois Rabelais University, 37000 Tours, France
| | - Andreas Bruchbacher
- Department of Urology, Medical University of Vienna, 1090 Vienna, Austria; (D.I.); (I.E.E.); (U.L.); (S.K.); (M.A.); (D.D.); (B.P.); (A.B.); (A.G.); (F.S.)
| | - Anna Graf
- Department of Urology, Medical University of Vienna, 1090 Vienna, Austria; (D.I.); (I.E.E.); (U.L.); (S.K.); (M.A.); (D.D.); (B.P.); (A.B.); (A.G.); (F.S.)
| | - Francesco Soria
- Department of Urology, Medical University of Vienna, 1090 Vienna, Austria; (D.I.); (I.E.E.); (U.L.); (S.K.); (M.A.); (D.D.); (B.P.); (A.B.); (A.G.); (F.S.)
- Division of Urology, Department of Surgical Sciences, San Giovanni Battista Hospital, University of Studies of Torino, 10124 Turin, Italy
| | - Martin Susani
- Clinical Institute of Pathology, Medical University of Vienna, Vienna 1090, Austria; (M.S.); (A.H.); (G.E.)
| | - Andrea Haitel
- Clinical Institute of Pathology, Medical University of Vienna, Vienna 1090, Austria; (M.S.); (A.H.); (G.E.)
| | - Luca Molinaro
- Division of Pathology, Department of Medical Sciences, University of Studies of Torino, 10124 Turin, Italy;
| | - Armin Pycha
- Department of Urology, Central Hospital of Bolzano/Bozen, 39100 Bozen, Italy; (A.P.); (E.C.)
- Sigmund Freud Private University, Medical University, 1020 Vienna, Austria
| | - Evi Comploj
- Department of Urology, Central Hospital of Bolzano/Bozen, 39100 Bozen, Italy; (A.P.); (E.C.)
- College of Health-Care Professions, Claudiana Research, Claudiana, 39100 Bolzano, Italy
| | - Stephan Pabinger
- AIT—Austrian Institute of Technology GmbH, Health & Environment Department, Molecular Diagnostics, 1210 Vienna, Austria; (W.P.); (S.P.); (A.W.)
| | - Andreas Weinhäusel
- AIT—Austrian Institute of Technology GmbH, Health & Environment Department, Molecular Diagnostics, 1210 Vienna, Austria; (W.P.); (S.P.); (A.W.)
| | - Gerda Egger
- Clinical Institute of Pathology, Medical University of Vienna, Vienna 1090, Austria; (M.S.); (A.H.); (G.E.)
- Ludwig Boltzmann Institute Applied Diagnostics, Währinger Gürtel 18-20, 1090 Vienna, Austria
| | - Shahrokh F. Shariat
- Department of Urology, Medical University of Vienna, 1090 Vienna, Austria; (D.I.); (I.E.E.); (U.L.); (S.K.); (M.A.); (D.D.); (B.P.); (A.B.); (A.G.); (F.S.)
- Division of Urology, Department of Special Surgery, The University of Jordan, Amman 11942, Jordan
- Department of Urology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
- Department of Urology, Weill Cornell Medical College, New York, NY 10065, USA
- Karl Landsteiner Institute of Urology and Andrology, 3100 St. Poelten, Austria
- Department of Urology, Second Faculty of Medicine, Charles University, 150 06 Prague, Czech Republic
- Institute for Urology and Reproductive Health, I.M. Sechenov First Moscow State Medical University, 119992 Moscow, Russia
- European Association of Urology research foundation, 6842 Arnhem, Netherlands
- Correspondence: (S.F.S.); (M.R.H.); Tel.: +43-01-40400-26150 (M.R.H.)
| | - Melanie R. Hassler
- Department of Urology, Medical University of Vienna, 1090 Vienna, Austria; (D.I.); (I.E.E.); (U.L.); (S.K.); (M.A.); (D.D.); (B.P.); (A.B.); (A.G.); (F.S.)
- Correspondence: (S.F.S.); (M.R.H.); Tel.: +43-01-40400-26150 (M.R.H.)
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Huang Y, Gunst SJ. Phenotype transitions induced by mechanical stimuli in airway smooth muscle are regulated by differential interactions of parvin isoforms with paxillin and Akt. Am J Physiol Lung Cell Mol Physiol 2020; 318:L1036-L1055. [PMID: 32130030 DOI: 10.1152/ajplung.00506.2019] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Mechanical tension and humoral stimuli can induce transitions in airway smooth muscle phenotype between a synthetic inflammatory state that promotes cytokine secretion and a differentiated state that promotes the expression of smooth muscle phenotype-specific proteins. When tissues are maintained under high tension, Akt activation and eotaxin secretion are suppressed, but expression of the differentiation marker protein, smooth muscle myosin heavy chain (SmMHC), is promoted. When tissues are maintained under low tension, Akt activation and eotaxin secretion are stimulated, and the differentiated phenotype is suppressed. We hypothesized that mechanical stimuli are differentially transduced to Akt-mediated signaling pathways that regulate phenotype expression by α-parvin and β-parvin integrin-linked kinase/PINCH/parvin (IPP) signaling complexes within integrin adhesomes. High tension or ACh triggered paxillin phosphorylation and the binding of phospho-paxillin to β-parvin IPP complexes. This inhibited Akt activation and promoted SmMHC expression. Low tension or IL-4 did not elicit paxillin phosphorylation and triggered the binding of unphosphorylated paxillin to α-parvin IPP complexes, which promoted Akt activation and eotaxin secretion and suppressed SmMHC expression. Expression of a nonphosphorylatable paxillin mutant or β-parvin depletion by siRNA promoted the inflammatory phenotype, whereas the depletion of α-parvin promoted the differentiated phenotype. Results demonstrate that phenotype expression is regulated by the differential interaction of phosphorylated and unphosphorylated paxillin with α-parvin and β-parvin IPP complexes and that these complexes have opposite effects on the activation of Akt. Our results describe a novel molecular mechanism for transduction of mechanical and humoral stimuli within integrin signaling complexes to regulate phenotype expression in airway smooth muscle.
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Affiliation(s)
- Youliang Huang
- Department of Anatomy, Cell Biology and Physiology, Indiana University School of Medicine, Indianapolis, Indiana
| | - Susan J Gunst
- Department of Anatomy, Cell Biology and Physiology, Indiana University School of Medicine, Indianapolis, Indiana
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22
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Musso F, Pronsato L, Milanesi L, Vasconsuelo A, Faraoni MB. Non-polar extracts of Nicotiana glauca (Solanaceae) induce apoptosis in human rhabdomyosarcoma cells. RODRIGUÉSIA 2020. [DOI: 10.1590/2175-7860202071047] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Abstract Rhabdomyosarcoma (RMS) is the most common soft-tissue tumour in children and adolescents. It originates in normal skeletal muscle from myogenic cells that have failed to fully differentiate, and it usually has a poor prognosis. Current RMS therapy has many adverse effects. Hence, new treatments are needed. Various pharmacological properties, such as analgesic, antineoplastic, antimicrobial, and antiparasitic properties, have been demonstrated in species of the Solanaceae family. We performed ethanolic extraction from leaves of Nicotiana glauca (Solanaceae), and the extract was successively partitioned with n-hexane, chloroform, and ethyl acetate. We evaluated the effects of extracts on RMS cells, and we found that the extracts trigger apoptosis. By bio-guided fractionation assays, we identified the apoptotic agents. Morphological assessment after apoptotic cell induction of cultured cells, mitochondrial and nuclear morphology by Mitotracker, and 4,6-diamidino-2-phenylindole (DAPI) staining, respectively, were analysed in fluorescent microscopy. The capacity of the cells to migrate or proliferate was analysed by the Petit assay, followed by methylene blue staining. NMR and GC-MS spectrometry were used to identify palmitic acid and scopoletin as the phytochemicals responsible for the observed effects. These results indicate that these compounds are apoptotic inducers and they could be useful as chemotherapeutic agents against muscle tumours.
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23
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Liao CH, Lin LP, Yu TY, Hsu CC, Pang JHS, Tsai WC. Ibuprofen inhibited migration of skeletal muscle cells in association with downregulation of p130cas and CrkII expressions. Skelet Muscle 2019; 9:23. [PMID: 31464636 PMCID: PMC6714350 DOI: 10.1186/s13395-019-0208-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2018] [Accepted: 08/13/2019] [Indexed: 11/28/2022] Open
Abstract
Background Nonsteroidal anti-inflammatory drugs (NSAIDs) are commonly used to treat sports-related muscle injuries. However, NSAIDs were recently shown to impede the muscle healing process after acute injury. Migration of skeletal muscle cells is a crucial step during the muscle healing process. The present study was performed to investigate the effect and molecular mechanisms of action of ibuprofen, a commonly used NSAID, on the migration of skeletal muscle cells. Methods Skeletal muscle cells isolated from the gastrocnemius muscle of Sprague-Dawley rats were treated with ibuprofen. MTT assay (3-[4,5-dimethylthiazol-2-yl]-2,5-diphenyltetrazolium bromide) was used to evaluate cell viability, and cell apoptosis was evaluated by TUNEL assay, after ibuprofen treatment. Skeletal muscle cell migration and spreading were evaluated using the transwell filter migration assay and F-actin staining, respectively. The protein expression of p130cas and CrkII, which are cell migration facilitating genes, was determined by western blot analysis. The overexpression of p130cas of muscle cells was achieved by p130cas vector transfection. Results The results demonstrated that ibuprofen did not have a significant negative effect on cell viability and apoptosis. Ibuprofen inhibited the migration and spreading of skeletal muscle cells in a dose-dependent manner. Ibuprofen also dose-dependently decreased the protein expression of p130cas and CrkII. Furthermore, overexpression of p130cas resulted in the promotion of cell migration and spreading and counteracted ibuprofen-mediated inhibition. Conclusion This study suggested that ibuprofen exerts a potentially adverse effect on the migration of skeletal muscle cells by downregulating protein expression of p130cas and CrkII. These results indicate a possible mechanism underlying the possible negative effect of NSAIDs on muscle regeneration.
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Affiliation(s)
- Chih-Hao Liao
- Department of Physical Medicine and Rehabilitation, Chang Gung Memorial Hospital, No.123, Dinghu Rd., Guishan Dist, Taoyuan City, 333, Taiwan
| | - Li-Ping Lin
- Department of Physical Medicine and Rehabilitation, Chang Gung Memorial Hospital, No.123, Dinghu Rd., Guishan Dist, Taoyuan City, 333, Taiwan.,Graduate Institute of Clinical Medical Sciences, Chang Gung University, Taoyuan City, Taiwan
| | - Tung-Yang Yu
- Department of Physical Medicine and Rehabilitation, Chang Gung Memorial Hospital, No.123, Dinghu Rd., Guishan Dist, Taoyuan City, 333, Taiwan
| | - Chih-Chin Hsu
- College of Medicine, Chang Gung University, Taoyuan City, Taiwan.,Department of Physical Medicine and Rehabilitation, Chang Gung Memorial Hospital, Keelung, Taiwan
| | - Jong-Hwei S Pang
- Department of Physical Medicine and Rehabilitation, Chang Gung Memorial Hospital, No.123, Dinghu Rd., Guishan Dist, Taoyuan City, 333, Taiwan.,Graduate Institute of Clinical Medical Sciences, Chang Gung University, Taoyuan City, Taiwan
| | - Wen-Chung Tsai
- Department of Physical Medicine and Rehabilitation, Chang Gung Memorial Hospital, No.123, Dinghu Rd., Guishan Dist, Taoyuan City, 333, Taiwan. .,College of Medicine, Chang Gung University, Taoyuan City, Taiwan.
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24
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Paxillin S273 Phosphorylation Regulates Adhesion Dynamics and Cell Migration through a Common Protein Complex with PAK1 and βPIX. Sci Rep 2019; 9:11430. [PMID: 31391572 PMCID: PMC6686007 DOI: 10.1038/s41598-019-47722-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2017] [Accepted: 07/23/2019] [Indexed: 02/07/2023] Open
Abstract
Cell migration is an important biological phenomenon involved in many homeostatic and aberrant physiological processes. Phosphorylation of the focal adhesion adaptor protein, paxillin, on serine 273 (S273) has been implicated as a key regulator of cell migration. Here, it is shown that phosphorylation on paxillin S273 leads to highly migratory cells with small dynamic adhesions. Adhesions at protrusive edges of the cell were more dynamic than adhesions at retracting edges. Temporal image correlation microscopy revealed that these dynamic adhesions undergo rapid binding of paxillin, PAK1 and βPIX. We identified membrane proximal adhesion subdomains in protrusive regions of the cell that show rapid protein binding that is dependent on paxillin S273 phosphorylation, PAK1 kinase activity and phosphatases. These dynamic adhesion subdomains corresponded to regions of the adhesion that also show co-binding of paxillin/PAK1 and paxillin/βPIX complexes. It is likely that parts of individual adhesions are more dynamic while others are less dynamic due to their association with the actin cytoskeleton. Variable adhesion and binding dynamics are regulated via differential paxillin S273 phosphorylation across the cell and within adhesions and are required for regulated cell migration. Dysregulation through phosphomutants, PAK1-KD or βPIX mutants resulted in large stable adhesions, long protein binding times and slow cell migration. Dysregulation through phosphomimics or PAK1-CA led to small dynamic adhesions and rapid cell migration reminiscent of highly migratory cancer cells. Thus, phosphorylation of paxillin S273 is a key regulator of cell migration through recruitment of βPIX and PAK1 to sites of adhesion.
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25
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PEAK3/C19orf35 pseudokinase, a new NFK3 kinase family member, inhibits CrkII through dimerization. Proc Natl Acad Sci U S A 2019; 116:15495-15504. [PMID: 31311869 DOI: 10.1073/pnas.1906360116] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Members of the New Kinase Family 3 (NKF3), PEAK1/SgK269 and Pragmin/SgK223 pseudokinases, have emerged as important regulators of cell motility and cancer progression. Here, we demonstrate that C19orf35 (PEAK3), a newly identified member of the NKF3 family, is a kinase-like protein evolutionarily conserved across mammals and birds and a regulator of cell motility. In contrast to its family members, which promote cell elongation when overexpressed in cells, PEAK3 overexpression does not have an elongating effect on cell shape but instead is associated with loss of actin filaments. Through an unbiased search for PEAK3 binding partners, we identified several regulators of cell motility, including the adaptor protein CrkII. We show that by binding to CrkII, PEAK3 prevents the formation of CrkII-dependent membrane ruffling. This function of PEAK3 is reliant upon its dimerization, which is mediated through a split helical dimerization domain conserved among all NKF3 family members. Disruption of the conserved DFG motif in the PEAK3 pseudokinase domain also interferes with its ability to dimerize and subsequently bind CrkII, suggesting that the conformation of the pseudokinase domain might play an important role in PEAK3 signaling. Hence, our data identify PEAK3 as an NKF3 family member with a unique role in cell motility driven by dimerization of its pseudokinase domain.
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26
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Toyokawa Y, Takagi T, Uchiyama K, Mizushima K, Inoue K, Ushiroda C, Kashiwagi S, Nakano T, Hotta Y, Tanaka M, Dohi O, Okayama T, Yoshida N, Katada K, Kamada K, Ishikawa T, Handa O, Konishi H, Naito Y, Itoh Y. Ginsenoside Rb1 promotes intestinal epithelial wound healing through extracellular signal-regulated kinase and Rho signaling. J Gastroenterol Hepatol 2019; 34:1193-1200. [PMID: 30394577 DOI: 10.1111/jgh.14532] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/04/2018] [Revised: 10/10/2018] [Accepted: 10/14/2018] [Indexed: 01/11/2023]
Abstract
BACKGROUND AND AIM Daikenchuto, a traditional Japanese herbal medicine, has been reported to exhibit anti-inflammatory effects against intestinal inflammation. However, whether daikenchuto has a therapeutic effect against intestinal mucosal injuries remains unclear. Thus, the aim of this study was to determine the effect of daikenchuto on intestinal mucosal healing. METHODS Colitis was induced in male Wistar rats by using trinitrobenzenesulfonic acid. Daikenchuto (900 mg/kg/day) was administered for 7 days after the induction of colitis. Thereafter, intestinal mucosal injuries were evaluated by determining the colonic epithelial regeneration ratio ([area of epithelial regeneration/area of ulcer] × 100). Restoration of rat intestinal epithelial cells treated with daikenchuto and its constituent herbs (Zanthoxylum fruit, processed ginger, and ginseng) and ginsenoside Rb1, which is a ginseng ingredient, was evaluated using a wound-healing assay. RESULTS The colon epithelial regeneration ratio in the daikenchuto-treated rats was significantly higher than that in the control rats. Daikenchuto, ginseng, and ginsenoside Rb1 enhanced wound healing, and the ginsenoside Rb1-induced enhancement was inhibited by extracellular signal-regulated kinase and Rho inhibitors. CONCLUSIONS Daikenchuto and its constituent, ginsenoside Rb1, promoted wound healing. Because mucosal healing is one of the most important therapeutic targets in patients with inflammatory bowel disease, ginsenoside Rb1 may be a novel therapeutic agent against intestinal mucosal damage such as that occurring in intestinal bowel disease.
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Affiliation(s)
- Yuki Toyokawa
- Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Tomohisa Takagi
- Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan.,Department for Medical Innovation and Translational Medical Science, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Kazuhiko Uchiyama
- Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Katsura Mizushima
- Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Ken Inoue
- Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Chihiro Ushiroda
- Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Saori Kashiwagi
- Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Takahiro Nakano
- Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Yuma Hotta
- Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Makoto Tanaka
- Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Osamu Dohi
- Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Tetsuya Okayama
- Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Naohisa Yoshida
- Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Kazuhiro Katada
- Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Kazuhiro Kamada
- Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Takeshi Ishikawa
- Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Osamu Handa
- Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Hideyuki Konishi
- Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Yuji Naito
- Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Yoshito Itoh
- Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
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Gandini NA, Alonso EN, Fermento ME, Mascaró M, Abba MC, Coló GP, Arévalo J, Ferronato MJ, Guevara JA, Núñez M, Pichel P, Curino AC, Facchinetti MM. Heme Oxygenase-1 Has an Antitumor Role in Breast Cancer. Antioxid Redox Signal 2019; 30:2030-2049. [PMID: 30484334 DOI: 10.1089/ars.2018.7554] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Aims: Heme oxygenase-1 (HO-1) is an enzyme involved in cellular responses to oxidative stress and has also been shown to regulate processes related to cancer progression. In this regard, HO-1 has been shown to display a dual effect with either antitumor or protumor activity, which is also true for breast cancer (BC). In this work, we address this discrepancy regarding the role of HO-1 in BC. Results: HO-1 was detected in human BC tissues, and its protein levels correlated with reduced tumor size and longer overall survival time of patients, thus suggesting the clinical importance of HO-1 in this type of cancer. Contrariwise, nuclear localization of HO-1 correlated with higher tumor grade suggesting that the effect of HO-1 is dependent on its cellular localization. In vivo experiments showed that both pharmacological activation and genetic overexpression of HO-1 reduce the tumor burden in two different animal models of BC. Furthermore, the pharmacological and genetic activation of HO-1 in several BC cell lines reduce the cellular viability by inducing apoptosis and cell cycle arrest and decrease the cellular migration and invasion rates by modulating pathways involved in the epithelial-mesenchymal transition. Furthermore, HO-1 activation impaired in vivo the metastatic dissemination. Innovation and Conclusion: By using various BC cell lines and animal models as well as human tumor samples, we demonstrated that total HO-1 displays antitumor activities in BC. Furthermore, our study suggests that HO-1 subcellular localization may explain the differential effects observed for the protein in different tumor types.
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Affiliation(s)
- Norberto Ariel Gandini
- 1 Laboratorio de Biología del Cáncer, Instituto de Investigaciones Bioquímicas de Bahía Blanca (INIBIBB), Universidad Nacional del Sur (UNS)-CONICET, Dpto. de Biología, Bioquímica y Farmacia (UNS), Bahía Blanca, Argentina
| | - Eliana Noelia Alonso
- 1 Laboratorio de Biología del Cáncer, Instituto de Investigaciones Bioquímicas de Bahía Blanca (INIBIBB), Universidad Nacional del Sur (UNS)-CONICET, Dpto. de Biología, Bioquímica y Farmacia (UNS), Bahía Blanca, Argentina
| | - María Eugenia Fermento
- 1 Laboratorio de Biología del Cáncer, Instituto de Investigaciones Bioquímicas de Bahía Blanca (INIBIBB), Universidad Nacional del Sur (UNS)-CONICET, Dpto. de Biología, Bioquímica y Farmacia (UNS), Bahía Blanca, Argentina
| | - Marilina Mascaró
- 1 Laboratorio de Biología del Cáncer, Instituto de Investigaciones Bioquímicas de Bahía Blanca (INIBIBB), Universidad Nacional del Sur (UNS)-CONICET, Dpto. de Biología, Bioquímica y Farmacia (UNS), Bahía Blanca, Argentina
| | - Martín Carlos Abba
- 2 CINIBA, Facultad de Ciencias Médicas, Universidad Nacional de La Plata, La Plata, Argentina
| | - Georgina Pamela Coló
- 1 Laboratorio de Biología del Cáncer, Instituto de Investigaciones Bioquímicas de Bahía Blanca (INIBIBB), Universidad Nacional del Sur (UNS)-CONICET, Dpto. de Biología, Bioquímica y Farmacia (UNS), Bahía Blanca, Argentina
| | - Julián Arévalo
- 1 Laboratorio de Biología del Cáncer, Instituto de Investigaciones Bioquímicas de Bahía Blanca (INIBIBB), Universidad Nacional del Sur (UNS)-CONICET, Dpto. de Biología, Bioquímica y Farmacia (UNS), Bahía Blanca, Argentina.,3 Servicio de Patología del Hospital Interzonal de Agudos Dr. José Penna, Bahía Blanca, Argentina
| | - María Julia Ferronato
- 1 Laboratorio de Biología del Cáncer, Instituto de Investigaciones Bioquímicas de Bahía Blanca (INIBIBB), Universidad Nacional del Sur (UNS)-CONICET, Dpto. de Biología, Bioquímica y Farmacia (UNS), Bahía Blanca, Argentina
| | - Josefina Alejandra Guevara
- 1 Laboratorio de Biología del Cáncer, Instituto de Investigaciones Bioquímicas de Bahía Blanca (INIBIBB), Universidad Nacional del Sur (UNS)-CONICET, Dpto. de Biología, Bioquímica y Farmacia (UNS), Bahía Blanca, Argentina
| | - Myriam Núñez
- 4 Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Pamela Pichel
- 5 Hospital Municipal de Agudos Dr Leónidas Lucero, Bahía Blanca, Argentina
| | - Alejandro Carlos Curino
- 1 Laboratorio de Biología del Cáncer, Instituto de Investigaciones Bioquímicas de Bahía Blanca (INIBIBB), Universidad Nacional del Sur (UNS)-CONICET, Dpto. de Biología, Bioquímica y Farmacia (UNS), Bahía Blanca, Argentina
| | - María Marta Facchinetti
- 1 Laboratorio de Biología del Cáncer, Instituto de Investigaciones Bioquímicas de Bahía Blanca (INIBIBB), Universidad Nacional del Sur (UNS)-CONICET, Dpto. de Biología, Bioquímica y Farmacia (UNS), Bahía Blanca, Argentina
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Kemmotsu T, Yokoyama U, Saito J, Ito S, Uozumi A, Nishimaki S, Iwasaki S, Seki K, Ito S, Ishikawa Y. Antenatal Administration of Betamethasone Contributes to Intimal Thickening of the Rat Ductus Arteriosus. Circ J 2019; 83:654-661. [PMID: 30726804 DOI: 10.1253/circj.cj-18-1033] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
BACKGROUND Antenatal betamethasone (BMZ) is a standard therapy for reducing respiratory distress syndrome in preterm infants. Recently, some reports have indicated that BMZ promotes ductus arteriosus (DA) closure. DA closure requires morphological remodeling; that is, intimal thickening (IT) formation; however, the role of BMZ in IT formation has not yet been reported. Methods and Results: First, DNA microarray analysis using smooth muscle cells (SMCs) of rat preterm DA on gestational day 20 (pDASMCs) stimulated with BMZ was performed. Among 58,717 probe sets, ADP-ribosyltransferase 3 (Art3) was markedly increased by BMZ stimulation. Quantitative reverse transcription polymerase chain reaction (RT-PCR) confirmed the BMZ-induced increase of Art3 in pDASMCs, but not in aortic SMCs. Immunocytochemistry showed that BMZ stimulation increased lamellipodia formation. BMZ significantly increased total paxillin protein expression and the ratio of phosphorylated to total paxillin. A scratch assay demonstrated that BMZ stimulation promoted pDASMC migration, which was attenuated byArt3-targeted siRNAs transfection. pDASMC proliferation was not promoted by BMZ, which was analyzed by a 5'-bromo-2'-deoxyuridine (BrdU) assay. Whether BMZ increased IT formation in vivo was examined. BMZ or saline was administered intravenously to maternal rats on gestational days 18 and 19, and DA tissues were obtained on gestational day 20. The ratio of IT to tunica media was significantly higher in the BMZ-treated group. CONCLUSIONS These data suggest that antenatal BMZ administration promotes DA IT through Art3-mediated DASMC migration.
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Affiliation(s)
- Takahiro Kemmotsu
- Department of Pediatrics, Graduate School of Medicine, Yokohama City University.,Cardiovascular Research Institute, Yokohama City University
| | - Utako Yokoyama
- Cardiovascular Research Institute, Yokohama City University
| | - Junichi Saito
- Cardiovascular Research Institute, Yokohama City University
| | - Satoko Ito
- Cardiovascular Research Institute, Yokohama City University
| | - Azusa Uozumi
- Department of Pediatrics, Graduate School of Medicine, Yokohama City University
| | - Shigeru Nishimaki
- Department of Pediatrics, Graduate School of Medicine, Yokohama City University
| | - Shiho Iwasaki
- Perinatal Center, Yokohama City University Medical Center
| | - Kazuo Seki
- Perinatal Center, Yokohama City University Medical Center
| | - Shuichi Ito
- Department of Pediatrics, Graduate School of Medicine, Yokohama City University
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Collins RJ, Morgan LD, Owen S, Ruge F, Jiang WG, Sanders AJ. Mechanistic insights of epithelial protein lost in neoplasm in prostate cancer metastasis. Int J Cancer 2018; 143:2537-2550. [PMID: 30098000 DOI: 10.1002/ijc.31786] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2018] [Revised: 07/12/2018] [Accepted: 07/24/2018] [Indexed: 01/21/2023]
Abstract
EPLIN is frequently downregulated or lost in various cancers. The purpose of this study was to evaluate the importance of EPLIN in prostate cancer progression, with particular focus on the mechanistic implications to elucidate EPLIN's tumor suppressive function in cancer. EPLIN expression was evaluated in prostate cancer cell lines and tissues. PC-3 and LNCaP EPLINα overexpression models were generated through transfection with EPLINα sequence and EPLIN knockdown was achieved using shRNA in CA-HPV-10 cells. Functional assays were performed to evaluate cellular characteristics and potential mechanisms were evaluated using a protein microarray, and validated using western blot analysis. EPLIN expression was reduced in clinical prostate cancer sections, including hyperplasia (p ≤ 0.001) and adenocarcinoma (p = 0.005), when compared to normal prostate tissue. EPLINα overexpression reduced cell growth, migration and invasion, and influenced transcript, protein and phosphoprotein expression of paxillin, FAK and Src. EPLIN knockdown increased the invasive and migratory nature of CA-HPV-10 cells and also induced changes to FAK and Src total and/or phospho expression. Functional characterization of cellular migration and invasion in addition to FAK and Src inhibition demonstrated differential effects between control and EPLINα overexpression and EPLIN knockdown cell lines. This study highlights that EPLIN expression in prostate cancer is able to influence several aspects of cancer cell characteristics, including cell growth, migration and invasion. The mechanism of the tumor suppressive action of EPLIN remains to be fully elucidated; and this study proposes a role for EPLIN's ability to regulate the aggressive characteristics of prostate cancer cells partially through regulating FAK/Src signaling.
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Affiliation(s)
- Ross J Collins
- Cardiff China Medical Research Collaborative (CCMRC), Cardiff University School of Medicine, Cardiff, United Kingdom
| | - Liam D Morgan
- Cardiff China Medical Research Collaborative (CCMRC), Cardiff University School of Medicine, Cardiff, United Kingdom
| | - Sioned Owen
- Cardiff China Medical Research Collaborative (CCMRC), Cardiff University School of Medicine, Cardiff, United Kingdom
| | - Fiona Ruge
- Cardiff China Medical Research Collaborative (CCMRC), Cardiff University School of Medicine, Cardiff, United Kingdom
| | - Wen G Jiang
- Cardiff China Medical Research Collaborative (CCMRC), Cardiff University School of Medicine, Cardiff, United Kingdom
| | - Andrew J Sanders
- Cardiff China Medical Research Collaborative (CCMRC), Cardiff University School of Medicine, Cardiff, United Kingdom
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Zhang W, Bhetwal BP, Gunst SJ. Rho kinase collaborates with p21-activated kinase to regulate actin polymerization and contraction in airway smooth muscle. J Physiol 2018; 596:3617-3635. [PMID: 29746010 DOI: 10.1113/jp275751] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Accepted: 05/04/2018] [Indexed: 12/16/2022] Open
Abstract
KEY POINTS The mechanisms by which Rho kinase (ROCK) regulates airway smooth muscle contraction were determined in tracheal smooth muscle tissues. ROCK may mediate smooth muscle contraction by inhibiting myosin regulatory light chain (RLC) phosphatase. ROCK can also regulate F-actin dynamics during cell migration, and actin polymerization is critical for airway smooth muscle contraction. Our results show that ROCK does not regulate airway smooth muscle contraction by inhibiting myosin RLC phosphatase or by stimulating myosin RLC phosphorylation. We find that ROCK regulates airway smooth muscle contraction by activating the serine-threonine kinase Pak, which mediates the activation of Cdc42 and neuronal Wiskott-Aldrich syndrome protein (N-WASp). N-WASP transmits signals from Cdc42 to the Arp2/3 complex for the nucleation of actin filaments. These results demonstrate a novel molecular function for ROCK in the regulation of Pak and Cdc42 activation that is critical for the processes of actin polymerization and contractility in airway smooth muscle. ABSTRACT Rho kinase (ROCK), a RhoA GTPase effector, can regulate the contraction of airway and other smooth muscle tissues. In some tissues, ROCK can inhibit myosin regulatory light chain (RLC) phosphatase, which increases the phosphorylation of myosin RLC and promotes smooth muscle contraction. ROCK can also regulate cell motility and migration by affecting F-actin dynamics. Actin polymerization is stimulated by contractile agonists in airway smooth muscle tissues and is required for contractile tension development in addition to myosin RLC phosphorylation. We investigated the mechanisms by which ROCK regulates the contractility of tracheal smooth muscle tissues by expressing a kinase-inactive mutant of ROCK, ROCK-K121G, in the tissues or by treating them with the ROCK inhibitor H-1152P. Our results show no role for ROCK in the regulation of non-muscle or smooth muscle myosin RLC phosphorylation during contractile stimulation in this tissue. We found that ROCK regulates airway smooth muscle contraction by mediating activation of p21-activated kinase (Pak), a serine-threonine kinase, to promote actin polymerization. Pak catalyses paxillin phosphorylation on Ser273 and coupling of the GIT1-βPIX-Pak signalling module to paxillin, which activates the guanine nucleotide exchange factor (GEF) activity of βPIX towards Cdc42. Cdc42 is required for the activation of neuronal Wiskott-Aldrich syndrome protein (N-WASp), which transmits signals from Cdc42 to the Arp2/3 complex for the nucleation of actin filaments. Our results demonstrate a novel molecular function for ROCK in the regulation of Pak and Cdc42 activation that is critical for the processes of actin polymerization and contractility in airway smooth muscle.
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Affiliation(s)
- Wenwu Zhang
- Department of Cellular and Integrative Physiology, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Bhupal P Bhetwal
- Department of Cellular and Integrative Physiology, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Susan J Gunst
- Department of Cellular and Integrative Physiology, Indiana University School of Medicine, Indianapolis, IN, USA
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Collins TN, Mao Y, Li H, Bouaziz M, Hong A, Feng GS, Wang F, Quilliam LA, Chen L, Park T, Curran T, Zhang X. Crk proteins transduce FGF signaling to promote lens fiber cell elongation. eLife 2018; 7:32586. [PMID: 29360039 PMCID: PMC5818251 DOI: 10.7554/elife.32586] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2017] [Accepted: 01/23/2018] [Indexed: 12/17/2022] Open
Abstract
Specific cell shapes are fundamental to the organization and function of multicellular organisms. Fibroblast Growth Factor (FGF) signaling induces the elongation of lens fiber cells during vertebrate lens development. Nonetheless, exactly how this extracellular FGF signal is transmitted to the cytoskeletal network has previously not been determined. Here, we show that the Crk family of adaptor proteins, Crk and Crkl, are required for mouse lens morphogenesis but not differentiation. Genetic ablation and epistasis experiments demonstrated that Crk and Crkl play overlapping roles downstream of FGF signaling in order to regulate lens fiber cell elongation. Upon FGF stimulation, Crk proteins were found to interact with Frs2, Shp2 and Grb2. The loss of Crk proteins was partially compensated for by the activation of Ras and Rac signaling. These results reveal that Crk proteins are important partners of the Frs2/Shp2/Grb2 complex in mediating FGF signaling, specifically promoting cell shape changes. As an embryo develops, its cells divide multiple times to transform into the specialized cell types that form our tissues and organs. To carry out specific roles, cells need to be of a certain shape. For example, in mammals, the cells that make up the main portion of the eye lens, develop into a fiber-like shape to be perfectly aligned with each other. This enables them to transmit light to the retina at the rear end of the eye. To do so, the lens cells increase over 1000 times in length with the help of a group of proteins called the Fibroblast Growth Factor, or FGF for short. The FGF pathway includes a network of interacting proteins that transmit signals to molecules inside the lens cells to control how they specialize and grow. However, until now it was not clear how it does this. Here, Zhang et al. used mouse lens-cells grown in the laboratory to investigate how FGF signaling causes cells to change their structure. The experiments revealed two related proteins called Crk and Crkl that linked the FGF pathway with another signaling system. When these two proteins were removed from the lens cells, the lens cells were still able to specialize, but could no longer grow in length. This suggests that these two processes are independent of each other. Moreover, Crk and Crkl helped the cells to change shape by increasing the amount of another group of proteins called Ras, which are known to both help cells to specialize and to regulate their shape. Zhang et al. discovered that the amount of Ras proteins determined whether cells specialized or modified their shape by changing the organization of proteins in the cell. Millions of children are born with cataracts, a disease caused when lens cells fail to shape properly. A better knowledge of FGF signaling may help to understand how cataracts develop and inspire future treatments. Moreover, the pathways identified in this study could also apply to other organs and diseases in which FGF signaling is active.
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Affiliation(s)
- Tamica N Collins
- Departments of Ophthalmology, Pathology and Cell Biology, Columbia University, New York, United States
| | - Yingyu Mao
- Departments of Ophthalmology, Pathology and Cell Biology, Columbia University, New York, United States
| | - Hongge Li
- Departments of Ophthalmology, Pathology and Cell Biology, Columbia University, New York, United States
| | - Michael Bouaziz
- Departments of Ophthalmology, Pathology and Cell Biology, Columbia University, New York, United States
| | - Angela Hong
- Departments of Ophthalmology, Pathology and Cell Biology, Columbia University, New York, United States
| | - Gen-Sheng Feng
- Department of Pathology, University of California San Diego, La Jolla, United States
| | - Fen Wang
- Center for Cancer Biology and Nutrition, Houston, United States
| | - Lawrence A Quilliam
- Department of Biochemistry and Molecular Biology, Indiana University School of Medicine, Indianapolis, United States
| | - Lin Chen
- Department of Rehabilitation Medicine, Third Military Medical University, Chongqing, China
| | - Taeju Park
- The Children's Research Institute, Children's Mercy Kansas City, Kansas City, United States
| | - Tom Curran
- The Children's Research Institute, Children's Mercy Kansas City, Kansas City, United States
| | - Xin Zhang
- Departments of Ophthalmology, Pathology and Cell Biology, Columbia University, New York, United States
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32
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Loh JT, Su IH. Post-translational modification-regulated leukocyte adhesion and migration. Oncotarget 2018; 7:37347-37360. [PMID: 26993608 PMCID: PMC5095081 DOI: 10.18632/oncotarget.8135] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2015] [Accepted: 02/28/2016] [Indexed: 12/30/2022] Open
Abstract
Leukocytes undergo frequent phenotypic changes and rapidly infiltrate peripheral and lymphoid tissues in order to carry out immune responses. The recruitment of circulating leukocytes into inflamed tissues depends on integrin-mediated tethering and rolling of these cells on the vascular endothelium, followed by transmigration into the tissues. This dynamic process of migration requires the coordination of large numbers of cytosolic and transmembrane proteins whose functional activities are typically regulated by post-translational modifications (PTMs). Our recent studies have shown that the lysine methyltransferase, Ezh2, critically regulates integrin signalling and governs the adhesion dynamics of leukocytes via direct methylation of talin, a key molecule that controls these processes by linking integrins to the actin cytoskeleton. In this review, we will discuss the various modes of leukocyte migration and examine how PTMs of cytoskeletal/adhesion associated proteins play fundamental roles in the dynamic regulation of leukocyte migration. Furthermore, we will discuss molecular details of the adhesion dynamics controlled by Ezh2-mediated talin methylation and the potential implications of this novel regulatory mechanism for leukocyte migration, immune responses, and pathogenic processes, such as allergic contact dermatitis and tumorigenesis.
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Affiliation(s)
- Jia Tong Loh
- School of Biological Sciences, College of Science, Nanyang Technological University, Republic of Singapore
| | - I-Hsin Su
- School of Biological Sciences, College of Science, Nanyang Technological University, Republic of Singapore
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33
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Wu KH, Ho CT, Chen ZF, Chen LC, Whang-Peng J, Lin TN, Ho YS. The apple polyphenol phloretin inhibits breast cancer cell migration and proliferation via inhibition of signals by type 2 glucose transporter. J Food Drug Anal 2018. [DOI: 10.1016/j.jfda.2017.03.009 pmid: 29389559] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
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Duran CL, Howell DW, Dave JM, Smith RL, Torrie ME, Essner JJ, Bayless KJ. Molecular Regulation of Sprouting Angiogenesis. Compr Physiol 2017; 8:153-235. [PMID: 29357127 DOI: 10.1002/cphy.c160048] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The term angiogenesis arose in the 18th century. Several studies over the next 100 years laid the groundwork for initial studies performed by the Folkman laboratory, which were at first met with some opposition. Once overcome, the angiogenesis field has flourished due to studies on tumor angiogenesis and various developmental models that can be genetically manipulated, including mice and zebrafish. In addition, new discoveries have been aided by the ability to isolate primary endothelial cells, which has allowed dissection of various steps within angiogenesis. This review will summarize the molecular events that control angiogenesis downstream of biochemical factors such as growth factors, cytokines, chemokines, hypoxia-inducible factors (HIFs), and lipids. These and other stimuli have been linked to regulation of junctional molecules and cell surface receptors. In addition, the contribution of cytoskeletal elements and regulatory proteins has revealed an intricate role for mobilization of actin, microtubules, and intermediate filaments in response to cues that activate the endothelium. Activating stimuli also affect various focal adhesion proteins, scaffold proteins, intracellular kinases, and second messengers. Finally, metalloproteinases, which facilitate matrix degradation and the formation of new blood vessels, are discussed, along with our knowledge of crosstalk between the various subclasses of these molecules throughout the text. Compr Physiol 8:153-235, 2018.
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Affiliation(s)
- Camille L Duran
- Department of Molecular and Cellular Medicine, Texas A&M Health Science Center, College Station, Texas, USA
| | - David W Howell
- Department of Molecular and Cellular Medicine, Texas A&M Health Science Center, College Station, Texas, USA
| | - Jui M Dave
- Department of Molecular and Cellular Medicine, Texas A&M Health Science Center, College Station, Texas, USA
| | - Rebecca L Smith
- Department of Molecular and Cellular Medicine, Texas A&M Health Science Center, College Station, Texas, USA
| | - Melanie E Torrie
- Department of Genetics, Development and Cell Biology, Iowa State University, Ames, Iowa, USA
| | - Jeffrey J Essner
- Department of Genetics, Development and Cell Biology, Iowa State University, Ames, Iowa, USA
| | - Kayla J Bayless
- Department of Molecular and Cellular Medicine, Texas A&M Health Science Center, College Station, Texas, USA
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35
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Bernabé-García Á, Liarte S, Moraleda JM, Castellanos G, Nicolás FJ. Amniotic membrane promotes focal adhesion remodeling to stimulate cell migration. Sci Rep 2017; 7:15262. [PMID: 29127427 PMCID: PMC5681678 DOI: 10.1038/s41598-017-15509-z] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2017] [Accepted: 10/26/2017] [Indexed: 02/04/2023] Open
Abstract
During wound healing, the migration of keratinocytes onto newly restored extracellular matrix aims to reestablish continuity of the epidermis. The application of amniotic membrane (AM) to chronic, deep traumatic, non-healing wounds has proven successful at stimulating re-epithelialization. When applied on epithelial cell cultures, AM activates extracellular signal-regulated kinases 1/2 (ERK1/2) and c-Jun N-terminal kinases 1/2 (JNK1/2), with the overexpression and phosphorylation of c-Jun along the wound edge. The effect of AM on the migration of cells was investigated by studying critical proteins involved in the focal adhesions turn-over: Focal Adhesion Kinase (FAK), Paxillin and Vinculin. In Mv1Lu and HaCaT cells, validated models for cell migration and wound healing, AM affected the expression and activation of Paxillin, but did not affect Vinculin expression, both factors which integrate into focal adhesions. Moreover, AM regulation also affected FAK activity through phosphorylation. Finally, we have determined that AM regulation of focal adhesions involves both JNK and MEK MAP kinase signaling pathways. This data provides a molecular background to understand how AM regulates critical cell and molecular aspects of cell migration, organizing and directing the movement of cells by the continuous formation, maturation, and turnover of focal adhesion structures at the migration leading edge.
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Affiliation(s)
- Ángel Bernabé-García
- Laboratorio de Oncología Molecular y TGF-ß, IMIB-Arrixaca, El Palmar, Murcia, Spain
| | - Sergio Liarte
- Laboratorio de Oncología Molecular y TGF-ß, IMIB-Arrixaca, El Palmar, Murcia, Spain
| | - Jose M Moraleda
- Unidad de Trasplante y Terapia Celular, Servicio Hematología, Hospital Clínico Universitario Virgen de la Arrixaca, Universidad de Murcia, Murcia, Spain
| | - Gregorio Castellanos
- Servicio de Cirugía General y del Aparato Digestivo, Hospital Clínico Universitario Virgen de la Arrixaca, El Palmar, Murcia, Spain
| | - Francisco J Nicolás
- Laboratorio de Oncología Molecular y TGF-ß, IMIB-Arrixaca, El Palmar, Murcia, Spain.
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36
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Hörner M, Chatelle C, Mühlhäuser WWD, Stocker DR, Coats M, Weber W, Radziwill G. Optogenetic control of focal adhesion kinase signaling. Cell Signal 2017; 42:176-183. [PMID: 29074139 DOI: 10.1016/j.cellsig.2017.10.012] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2017] [Revised: 10/06/2017] [Accepted: 10/19/2017] [Indexed: 10/18/2022]
Abstract
Focal adhesion kinase (FAK) integrates signaling from integrins, growth factor receptors and mechanical stress to control cell adhesion, motility, survival and proliferation. Here, we developed a single-component, photo-activatable FAK, termed optoFAK, by using blue light-induced oligomerization of cryptochrome 2 (CRY2) to activate FAK-CRY2 fusion proteins. OptoFAK functions uncoupled from physiological stimuli and activates downstream signaling rapidly and reversibly upon blue light exposure. OptoFAK stimulates SRC creating a positive feedback loop on FAK activation, facilitating phosphorylation of paxillin and p130Cas in adherent cells. In detached cells or in mechanically stressed adherent cells, optoFAK is autophosphorylated upon exposure to blue light, however, downstream signaling is hampered indicating that the accessibility to these substrates is disturbed. OptoFAK may prove to be a useful tool to study the biological function of FAK in growth factor and integrin signaling, tension-mediated focal adhesion maturation or anoikis and could additionally serve as test system for kinase inhibitors.
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Affiliation(s)
- Maximilian Hörner
- Faculty of Biology, University of Freiburg, Schaenzlestr. 1, 79104 Freiburg, Germany; Spemann Graduate School of Biology and Medicine (SGBM), University of Freiburg, Albertstr. 19A, 79104 Freiburg, Germany; BIOSS Centre for Biological Signalling Studies, University of Freiburg, Schaenzlestr. 18, 79104 Freiburg, Germany.
| | - Claire Chatelle
- Faculty of Biology, University of Freiburg, Schaenzlestr. 1, 79104 Freiburg, Germany; BIOSS Centre for Biological Signalling Studies, University of Freiburg, Schaenzlestr. 18, 79104 Freiburg, Germany
| | - Wignand W D Mühlhäuser
- Faculty of Biology, University of Freiburg, Schaenzlestr. 1, 79104 Freiburg, Germany; BIOSS Centre for Biological Signalling Studies, University of Freiburg, Schaenzlestr. 18, 79104 Freiburg, Germany.
| | - David R Stocker
- Faculty of Biology, University of Freiburg, Schaenzlestr. 1, 79104 Freiburg, Germany
| | - Michael Coats
- Faculty of Biology, University of Freiburg, Schaenzlestr. 1, 79104 Freiburg, Germany.
| | - Wilfried Weber
- Faculty of Biology, University of Freiburg, Schaenzlestr. 1, 79104 Freiburg, Germany; Spemann Graduate School of Biology and Medicine (SGBM), University of Freiburg, Albertstr. 19A, 79104 Freiburg, Germany; BIOSS Centre for Biological Signalling Studies, University of Freiburg, Schaenzlestr. 18, 79104 Freiburg, Germany.
| | - Gerald Radziwill
- Faculty of Biology, University of Freiburg, Schaenzlestr. 1, 79104 Freiburg, Germany; BIOSS Centre for Biological Signalling Studies, University of Freiburg, Schaenzlestr. 18, 79104 Freiburg, Germany.
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Paxillin Binding to the Cytoplasmic Domain of CD103 Promotes Cell Adhesion and Effector Functions for CD8+ Resident Memory T Cells in Tumors. Cancer Res 2017; 77:7072-7082. [DOI: 10.1158/0008-5472.can-17-1487] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2017] [Revised: 08/05/2017] [Accepted: 10/05/2017] [Indexed: 11/16/2022]
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Regulation of focal adhesion turnover in SDF-1α-stimulated migration of mesenchymal stem cells in neural differentiation. Sci Rep 2017; 7:10013. [PMID: 28855566 PMCID: PMC5577153 DOI: 10.1038/s41598-017-09736-7] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2017] [Accepted: 07/28/2017] [Indexed: 12/13/2022] Open
Abstract
Directed migration of the transplanted mesenchymal stem cells (MSCs) to the lesion sites plays a pivotal role in the efficacy of cell-based therapy. Our previous study demonstrates that MSCs under varying neural differentiation states possess different migratory capacities in response to chemoattractants. However, the underlying mechanism has not been fully addressed. Herein, we show that the assembly and turnover of focal adhesions, the phosphorylation of FAK and paxillin, and the reorganisation of F-actin in MSCs are closely related to their differentiation states in response to SDF-1α. Upon SDF-1α stimulation, FAs turnover more rapidly with the most obvious reduction in the existing time of FAs in MSCs of 24-h preinduction that exhibit the most effective migration towards SDF-1α. Further, we confirm that PI3K/Akt and MAPK pathways participate in the regulation of SDF-1α-induced cell migration and FA assembly, and moreover, that the regulatory effects vary greatly depending on the differentiation states. Collectively, these results demonstrate that FA assembly and turnover, which is accompanied with F-actin reorganisation in response to SDF-1α, correlates closely with the differentiation states of MSCs, which might contribute to the different chemotactic responses of these cells, and thus help develop new strategy to improve the efficacy of MSCs-based therapy.
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Petrov D, Dahan I, Cohen-Kfir E, Ravid S. aPKCζ affects directed cell migration through the regulation of myosin light chain phosphorylation. Cell Adh Migr 2017; 11:347-359. [PMID: 27541056 DOI: 10.1080/19336918.2016.1225631] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
Cell motility is an essential cellular process for a variety of biological events. It requires cross-talk between the signaling and the cytoskeletal systems. Despite the recognized importance of aPKCζ for cell motility, there is little understanding of the mechanism by which aPKCζ mediates extracellular signals to the cytoskeleton. In the present study, we report that aPKCζ is required for the cellular organization of acto-non-muscle myosin II (NMII) cytoskeleton, for proper cell adhesion and directed cell migration. We show that aPKCζ mediates EGF-dependent RhoA activation and recruitment to the cell membrane. We also show that aPKCζ mediates EGF-dependent myosin light chain (MRLC) phosphorylation that is carried out by Rho-associated protein kinase (ROCK), and that aPKCζ is required for EGF-dependent phosphorylation and inhibition of the myosin phosphatase targeting subunit (MYPT). Finally, we show that aPKCζ mediates the spatial organization of the acto-NMII cytoskeleton in response to EGF stimulation. Our data suggest that aPKCζ is an essential component regulator of acto-NMII cytoskeleton organization leading to directed cell migration, and is a mediator of the EGF signal to the cytoskeleton.
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Affiliation(s)
- Daria Petrov
- a Department of Biochemistry and Molecular Biology , The Institute of Medical Research Israel-Canada, The Hebrew University-Hadassah Medical School , Jerusalem , Israel
| | - Inbal Dahan
- a Department of Biochemistry and Molecular Biology , The Institute of Medical Research Israel-Canada, The Hebrew University-Hadassah Medical School , Jerusalem , Israel
| | - Einav Cohen-Kfir
- a Department of Biochemistry and Molecular Biology , The Institute of Medical Research Israel-Canada, The Hebrew University-Hadassah Medical School , Jerusalem , Israel
| | - Shoshana Ravid
- a Department of Biochemistry and Molecular Biology , The Institute of Medical Research Israel-Canada, The Hebrew University-Hadassah Medical School , Jerusalem , Israel
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Wu KH, Ho CT, Chen ZF, Chen LC, Whang-Peng J, Lin TN, Ho YS. The apple polyphenol phloretin inhibits breast cancer cell migration and proliferation via inhibition of signals by type 2 glucose transporter. J Food Drug Anal 2017; 26:221-231. [PMID: 29389559 PMCID: PMC9332637 DOI: 10.1016/j.jfda.2017.03.009] [Citation(s) in RCA: 77] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2017] [Revised: 03/23/2017] [Accepted: 03/29/2017] [Indexed: 01/09/2023] Open
Abstract
Human triple-negative breast cancer (TNBC) is the most aggressive and poorly understood subclass of breast cancer. Glucose transporters (GLUTs) are required for glucose uptake in malignant cancer cells and are ideal targets for cancer therapy. To determine whether the inhibition of GLUTs could be used in TNBC cell therapy, the apple polyphenol phloretin (Ph) was used as a specific antagonist of GLUT2 protein function in human TNBC cells. Interestingly, we found that Ph (10–150 μM, for 24 h) inhibited cell growth and arrested the cell cycle in MDA-MB-231 cells in a p53 mutant-dependent manner, which was confirmed by pre-treatment of the cells with a p53-specific dominant-negative expression vector. We also found that Ph treatment (10–150 μM, for 24 h) significantly decreased the migratory activity of the MDA-MB-231 cells through the inhibition of paxillin/FAK, Src, and alpha smooth muscle actin (α-sMA) and through the activation of E-cadherin. Furthermore, the anti-tumorigenic effect of Ph (10, 50 mg/kg or DMSO twice a week for six weeks) was demonstrated in vivo using BALB/c nude mice bearing MDA-MB-231 tumor xenografts. A decrease in N-cadherin, vimentin and an increase in p53, p21 and E-cadherin were detected in the tumor tissues. In conclusion, inhibition of GLUT2 by the apple polyphenol Ph could potentially suppress TNBC tumor cell growth and metastasis.
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Affiliation(s)
- Kuan-Hsun Wu
- The Ph.D. Program for Translational Medicine, College of Medical Science and Technology, Taipei Medical University and Academia Sinica, Taipei, Taiwan; Department of Pediatrics, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan; Department of Pediatrics, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan
| | - Chi-Tang Ho
- Department of Food Science, Rutgers University, New Brunswick, NJ 08901, USA
| | - Zhao-Feng Chen
- Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Li-Ching Chen
- Comprehensive Cancer Center of Taipei Medical University, Taipei, Taiwan; Breast Medical Center, Taipei Medical University Hospital, Taipei, Taiwan; Graduate Institute of Clinical Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan; Taipei Cancer Center, Taipei Medical University, Taipei, Taiwan
| | - Jacqueline Whang-Peng
- Comprehensive Cancer Center of Taipei Medical University, Taipei, Taiwan; Taipei Cancer Center, Taipei Medical University, Taipei, Taiwan
| | - Teng-Nan Lin
- Institute of Biomedical Sciences, Academia Sinica, Taiwan.
| | - Yuan-Soon Ho
- Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei, Taiwan; Comprehensive Cancer Center of Taipei Medical University, Taipei, Taiwan; School of Medical Laboratory Science and Biotechnology, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan; Department of Laboratory Medicine, Taipei Medical University Hospital, Taipei, Taiwan.
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41
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Stutchbury B, Atherton P, Tsang R, Wang DY, Ballestrem C. Distinct focal adhesion protein modules control different aspects of mechanotransduction. J Cell Sci 2017; 130:1612-1624. [PMID: 28302906 DOI: 10.1242/jcs.195362] [Citation(s) in RCA: 97] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2016] [Accepted: 03/08/2017] [Indexed: 12/28/2022] Open
Abstract
Focal adhesions (FAs) are macromolecular complexes that regulate cell adhesion and mechanotransduction. By performing fluorescence recovery after photobleaching (FRAP) and fluorescence loss after photoactivation (FLAP) experiments, we found that the mobility of core FA proteins correlates with their function. Structural proteins such as tensin, talin and vinculin are significantly less mobile in FAs than signaling proteins such as FAK (also known as PTK2) and paxillin. The mobilities of the structural proteins are directly influenced by substrate stiffness, suggesting that they are involved in sensing the rigidity of the extracellular environment. The turnover rates of FAK and paxillin, as well as kindlin2 (also known as FERMT2), are not influenced by substrate stiffness. By using specific Src and FAK inhibitors, we reveal that force-sensing by vinculin occurs independently of FAK and paxillin phosphorylation. However, their phosphorylation is required for downstream Rac1-driven cellular processes, such as protrusion and cell migration. Overall, we show that the FA is composed of different functional modules that separately control mechanosensing and the cellular mechano-response.
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Affiliation(s)
- Ben Stutchbury
- Wellcome Trust Centre for Cell-Matrix Research, University of Manchester, Manchester M13 9PT, England, UK
| | - Paul Atherton
- Wellcome Trust Centre for Cell-Matrix Research, University of Manchester, Manchester M13 9PT, England, UK
| | - Ricky Tsang
- Wellcome Trust Centre for Cell-Matrix Research, University of Manchester, Manchester M13 9PT, England, UK
| | - De-Yao Wang
- Wellcome Trust Centre for Cell-Matrix Research, University of Manchester, Manchester M13 9PT, England, UK
| | - Christoph Ballestrem
- Wellcome Trust Centre for Cell-Matrix Research, University of Manchester, Manchester M13 9PT, England, UK
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42
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Goicoechea SM, Zinn A, Awadia SS, Snyder K, Garcia-Mata R. A RhoG-mediated signaling pathway that modulates invadopodia dynamics in breast cancer cells. J Cell Sci 2017; 130:1064-1077. [PMID: 28202690 DOI: 10.1242/jcs.195552] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2016] [Accepted: 01/14/2017] [Indexed: 01/11/2023] Open
Abstract
One of the hallmarks of cancer is the ability of tumor cells to invade surrounding tissues and metastasize. During metastasis, cancer cells degrade the extracellular matrix, which acts as a physical barrier, by developing specialized actin-rich membrane protrusion structures called invadopodia. The formation of invadopodia is regulated by Rho GTPases, a family of proteins that regulates the actin cytoskeleton. Here, we describe a novel role for RhoG in the regulation of invadopodia disassembly in human breast cancer cells. Our results show that RhoG and Rac1 have independent and opposite roles in the regulation of invadopodia dynamics. We also show that SGEF (also known as ARHGEF26) is the exchange factor responsible for the activation of RhoG during invadopodia disassembly. When the expression of either RhoG or SGEF is silenced, invadopodia are more stable and have a longer lifetime than in control cells. Our findings also demonstrate that RhoG and SGEF modulate the phosphorylation of paxillin, which plays a key role during invadopodia disassembly. In summary, we have identified a novel signaling pathway involving SGEF, RhoG and paxillin phosphorylation, which functions in the regulation of invadopodia disassembly in breast cancer cells.
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Affiliation(s)
- Silvia M Goicoechea
- Department of Biological Sciences, University of Toledo, Toledo, OH 43606, USA
| | - Ashtyn Zinn
- Department of Biological Sciences, University of Toledo, Toledo, OH 43606, USA
| | - Sahezeel S Awadia
- Department of Biological Sciences, University of Toledo, Toledo, OH 43606, USA
| | - Kyle Snyder
- Department of Biological Sciences, University of Toledo, Toledo, OH 43606, USA
| | - Rafael Garcia-Mata
- Department of Biological Sciences, University of Toledo, Toledo, OH 43606, USA
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43
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Iwasa F, Baba K, Ogawa T. Enhanced intracellular signaling pathway in osteoblasts on ultraviolet lighttreated hydrophilic titanium. Biomed Res 2016; 37:1-11. [PMID: 26912135 DOI: 10.2220/biomedres.37.1] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Ultraviolet (UV) light treatment of titanium immediately prior to use, or photofunctionalization, reactivates the time-dependent degradation of bioactivity of titanium (biological aging of titanium) and increases its osseointegration capacity beyond the inherent maximal level. Although the initial osteoblast attachment is reportedly enhanced on UV-treated titanium surfaces, the detailed mechanism behind the increase in osseointegration is unknown. This study examined the potential modulation of intracellular signaling pathway in osteoblasts on UV-treated titanium surfaces. Rat bone marrow-derived osteoblasts were cultured on 4-week-old, new, and UV-treated titanium surfaces. The new and UV-treated surfaces were superhydrophilic, whereas the 4-week-old surface was hydrophobic. Although the rate of protein adsorption was similarly increased on the new and UV-treated surfaces compared with the 4-week-old surface, the number of attached cells and their spreading behavior were further enhanced on the UV-treated surface. This additional enhancement was associated with the remarkably upregulated expression of paxillin and phospho-paxillin and exclusive upregulation of Rho GTPase family genes. This study provides with the first molecular evidence of the enhanced initial behavior of osteoblasts on UV-treated titanium surfaces. The enhancement was accentuated and distinct from the new titanium surface with similar hydrophilicity, suggesting that surface properties other than the level of hydrophilicity are responsible.
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Affiliation(s)
- Fuminori Iwasa
- Department of Proshodontics, School of Dentistry, Showa University
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44
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Alonso EN, Ferronato MJ, Gandini NA, Fermento ME, Obiol DJ, López Romero A, Arévalo J, Villegas ME, Facchinetti MM, Curino AC. Antitumoral Effects of D-Fraction from Grifola Frondosa (Maitake) Mushroom in Breast Cancer. Nutr Cancer 2016; 69:29-43. [PMID: 27892708 DOI: 10.1080/01635581.2017.1247891] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
D-Fraction is protein-bound β-1,6 and β-1,3 glucans (proteoglucan) extracted from the edible and medicinal mushroom Grifola frondosa (Maitake). The antitumoral effect of D-Fraction has long been exclusively attributed to their immunostimulatory capacity. However, in recent years increasing evidence showed that D-Fraction directly affects the viability of canine and human tumor cells, independent of the immune system. Previously, we have reported that D-Fraction modulates the expression of genes associated with cell proliferation, cell death, migration, invasion, and metastasis in MCF7 human breast cancer cells. Therefore, the purpose of the current study is to investigate if this modulation of gene expression by Maitake D-Fraction really modulates tumor progression. In the present work, we demonstrate for the first time that Maitake D-Fraction is able to act directly on mammary tumor cells, modulating different cellular processes involved in the development and progression of cancer. We demonstrate that D-Fraction decreases cell viability, increases cell adhesion, and reduces the migration and invasion of mammary tumor cells, generating a less aggressive cell behavior. In concordance with these results, we also demonstrate that D-Fraction decreases tumor burden and the number of lung metastases in a murine model of breast cancer.
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Affiliation(s)
- Eliana Noelia Alonso
- a Laboratorio de Biología del Cáncer , Instituto de Investigaciones Bioquímicas Bahía Blanca (INIBIBB), Universidad Nacional del Sur (UNS) -CONICET , Bahía Blanca , Argentina
| | - María Julia Ferronato
- a Laboratorio de Biología del Cáncer , Instituto de Investigaciones Bioquímicas Bahía Blanca (INIBIBB), Universidad Nacional del Sur (UNS) -CONICET , Bahía Blanca , Argentina
| | - Norberto Ariel Gandini
- a Laboratorio de Biología del Cáncer , Instituto de Investigaciones Bioquímicas Bahía Blanca (INIBIBB), Universidad Nacional del Sur (UNS) -CONICET , Bahía Blanca , Argentina
| | - María Eugenia Fermento
- a Laboratorio de Biología del Cáncer , Instituto de Investigaciones Bioquímicas Bahía Blanca (INIBIBB), Universidad Nacional del Sur (UNS) -CONICET , Bahía Blanca , Argentina
| | - Diego Javier Obiol
- a Laboratorio de Biología del Cáncer , Instituto de Investigaciones Bioquímicas Bahía Blanca (INIBIBB), Universidad Nacional del Sur (UNS) -CONICET , Bahía Blanca , Argentina
| | | | - Julián Arévalo
- c Servicio de Patología del Hospital Interzonal General de Agudos Dr. José Penna , Bahía Blanca , Argentina
| | - María Emilia Villegas
- a Laboratorio de Biología del Cáncer , Instituto de Investigaciones Bioquímicas Bahía Blanca (INIBIBB), Universidad Nacional del Sur (UNS) -CONICET , Bahía Blanca , Argentina
| | - María Marta Facchinetti
- a Laboratorio de Biología del Cáncer , Instituto de Investigaciones Bioquímicas Bahía Blanca (INIBIBB), Universidad Nacional del Sur (UNS) -CONICET , Bahía Blanca , Argentina
| | - Alejandro Carlos Curino
- a Laboratorio de Biología del Cáncer , Instituto de Investigaciones Bioquímicas Bahía Blanca (INIBIBB), Universidad Nacional del Sur (UNS) -CONICET , Bahía Blanca , Argentina
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45
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Hammer A, Diakonova M. Prolactin-induced PAK1 tyrosyl phosphorylation promotes FAK dephosphorylation, breast cancer cell motility, invasion and metastasis. BMC Cell Biol 2016; 17:31. [PMID: 27542844 PMCID: PMC4992334 DOI: 10.1186/s12860-016-0109-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2016] [Accepted: 08/04/2016] [Indexed: 01/10/2023] Open
Abstract
BACKGROUND The serine/threonine kinase PAK1 is an important regulator of cell motility. Both PAK1 and the hormone/cytokine prolactin (PRL) have been implicated in breast cancer cell motility, however, the exact mechanisms guiding PRL/PAK1 signaling in breast cancer cells have not been fully elucidated. Our lab has previously demonstrated that PRL-activated tyrosine kinase JAK2 phosphorylates PAK1 on tyrosines 153, 201, and 285, and that tyrosyl phosphorylated PAK1 (pTyr-PAK1) augments migration and invasion of breast cancer cells. RESULTS Here we further investigate the mechanisms by which pTyr-PAK1 enhances breast cancer cell motility in response to PRL. We demonstrate a distinct reduction in PRL-induced FAK auto-phosphorylation in T47D and TMX2-28 breast cancer cells overexpressing wild-type PAK1 (PAK1 WT) when compared to cells overexpressing either GFP or phospho-tyrosine-deficient mutant PAK1 (PAK1 Y3F). Furthermore, pTyr-PAK1 phosphorylates MEK1 on Ser298 resulting in subsequent ERK1/2 activation. PRL-induced FAK auto-phosphorylation is rescued in PAK1 WT cells by inhibiting tyrosine phosphatases and tyrosine phosphatase inhibition abrogates cell motility and invasion in response to PRL. siRNA-mediated knockdown of the tyrosine phosphatase PTP-PEST rescues FAK auto-phosphorylation in PAK1 WT cells and reduces both cell motility and invasion. Finally, we provide evidence that PRL-induced pTyr-PAK1 stimulates tumor cell metastasis in vivo. CONCLUSION These data provide insight into the mechanisms guiding PRL-mediated breast cancer cell motility and invasion and highlight a significant role for pTyr-PAK1 in breast cancer metastasis.
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Affiliation(s)
- Alan Hammer
- Department of Biological Sciences, University of Toledo, 2801 W. Bancroft Street, Toledo, 43606-3390, OH, USA
| | - Maria Diakonova
- Department of Biological Sciences, University of Toledo, 2801 W. Bancroft Street, Toledo, 43606-3390, OH, USA.
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46
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Ordoñez M, Rivera IG, Presa N, Gomez-Muñoz A. Implication of matrix metalloproteinases 2 and 9 in ceramide 1-phosphate-stimulated macrophage migration. Cell Signal 2016; 28:1066-74. [DOI: 10.1016/j.cellsig.2016.05.005] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2016] [Revised: 05/05/2016] [Accepted: 05/05/2016] [Indexed: 01/08/2023]
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47
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Takagi T, Naito Y, Uchiyama K, Mizuhima K, Suzuki T, Horie R, Hirata I, Tsuboi H, Yoshikawa T. Carbon monoxide promotes gastric wound healing in mice via the protein kinase C pathway. Free Radic Res 2016; 50:1098-1105. [DOI: 10.1080/10715762.2016.1189546] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Tomohisa Takagi
- Department of Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Yuji Naito
- Department of Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Kazuhiko Uchiyama
- Department of Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Katsura Mizuhima
- Department of Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Takahiro Suzuki
- Department of Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Ryusuke Horie
- Department of Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Ikuhiro Hirata
- Department of Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Hisato Tsuboi
- Department of Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Toshikazu Yoshikawa
- Department of Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
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48
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Missirlis D, Haraszti T, Scheele CVC, Wiegand T, Diaz C, Neubauer S, Rechenmacher F, Kessler H, Spatz JP. Substrate engagement of integrins α5β1 and αvβ3 is necessary, but not sufficient, for high directional persistence in migration on fibronectin. Sci Rep 2016; 6:23258. [PMID: 26987342 PMCID: PMC4796868 DOI: 10.1038/srep23258] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2015] [Accepted: 03/02/2016] [Indexed: 12/29/2022] Open
Abstract
The interplay between specific integrin-mediated matrix adhesion and directional persistence in cell migration is not well understood. Here, we characterized fibroblast adhesion and migration on the extracellular matrix glycoproteins fibronectin and vitronectin, focusing on the role of α5β1 and αvβ3 integrins. Fibroblasts manifested high directional persistence in migration on fibronectin-, but not vitronectin-coated substrates, in a ligand density-dependent manner. Fibronectin stimulated α5β1-dependent organization of the actin cytoskeleton into oriented, ventral stress fibers, and assembly of dynamic, polarized protrusions, characterized as regions free of stress fibers and rich in nascent adhesions at their edge. Such protrusions correlated with persistent, local leading edge advancement, but were not sufficient, nor necessary for directional migration over longer times. Selective blocking of αvβ3 or α5β1 integrins using small molecule integrin antagonists reduced directional persistence on fibronectin, indicating integrin cooperativity in maintaining directionality. On the other hand, patterned substrates, designed to selectively engage either integrin, or their combination, were not sufficient to establish directional migration. Overall, our study demonstrates adhesive coating-dependent regulation of directional persistence in fibroblast migration and challenges the generality of the previously suggested role of β1 and β3 integrins in directional migration.
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Affiliation(s)
- Dimitris Missirlis
- Department of New Materials and Biosystems, Max Planck Institute for Intelligent Systems &University of Heidelberg, Department of Biophysical Chemistry Heisenbergstr. 3, D-70569 Stuttgart, Germany
| | - Tamás Haraszti
- Department of New Materials and Biosystems, Max Planck Institute for Intelligent Systems &University of Heidelberg, Department of Biophysical Chemistry Heisenbergstr. 3, D-70569 Stuttgart, Germany
| | - Catharina v C Scheele
- Department of New Materials and Biosystems, Max Planck Institute for Intelligent Systems &University of Heidelberg, Department of Biophysical Chemistry Heisenbergstr. 3, D-70569 Stuttgart, Germany
| | - Tina Wiegand
- Department of New Materials and Biosystems, Max Planck Institute for Intelligent Systems &University of Heidelberg, Department of Biophysical Chemistry Heisenbergstr. 3, D-70569 Stuttgart, Germany
| | - Carolina Diaz
- Department of New Materials and Biosystems, Max Planck Institute for Intelligent Systems &University of Heidelberg, Department of Biophysical Chemistry Heisenbergstr. 3, D-70569 Stuttgart, Germany
| | - Stefanie Neubauer
- Institute for Advanced Study (IAS) and Center of Integrated Protein Science (CIPSM), Department Chemie, Technische Universität München, Lichtenbergstr. 4, Garching, D-85747, Germany
| | - Florian Rechenmacher
- Institute for Advanced Study (IAS) and Center of Integrated Protein Science (CIPSM), Department Chemie, Technische Universität München, Lichtenbergstr. 4, Garching, D-85747, Germany
| | - Horst Kessler
- Institute for Advanced Study (IAS) and Center of Integrated Protein Science (CIPSM), Department Chemie, Technische Universität München, Lichtenbergstr. 4, Garching, D-85747, Germany
| | - Joachim P Spatz
- Department of New Materials and Biosystems, Max Planck Institute for Intelligent Systems &University of Heidelberg, Department of Biophysical Chemistry Heisenbergstr. 3, D-70569 Stuttgart, Germany
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49
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Activity-dependent dephosphorylation of paxillin contributed to nociceptive plasticity in spinal cord dorsal horn. Pain 2016; 157:652-665. [DOI: 10.1097/j.pain.0000000000000415] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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50
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Shukla VC, Higuita-Castro N, Nana-Sinkam P, Ghadiali SN. Substrate stiffness modulates lung cancer cell migration but not epithelial to mesenchymal transition. J Biomed Mater Res A 2016; 104:1182-93. [PMID: 26779779 DOI: 10.1002/jbm.a.35655] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2015] [Revised: 12/17/2015] [Accepted: 01/13/2016] [Indexed: 11/07/2022]
Abstract
Biomechanical properties of the tumor microenvironment, including matrix/substrate stiffness, play a significant role in tumor evolution and metastasis. Epithelial to Mesenchymal Transition (EMT) is a fundamental biological process that is associated with increased cancer cell migration and invasion. The goal of this study was to investigate (1) how substrate stiffness modulates the migration behaviors of lung adenocarcinoma cells (A549) and (2) if stiffness-induced changes in cell migration correlate with biochemical markers of EMT. Collagen-coated polydimethylsiloxane (PDMS) substrates and an Ibidi migration assay were used to investigate how substrate stiffness alters the migration patterns of A549 cells. RT-PCR, western blotting and immunofluorescence were used to investigate how substrate stiffness alters biochemical markers of EMT, that is, E-cadherin and N-cadherin, and the phosphorylation of focal adhesion proteins. Increases in substrate stiffness led to slower, more directional migration but did not alter the biochemical markers of EMT. Interestingly, growth factor (i.e., Transforming Growth Factor-β) stimulation resulted in similar levels of EMT regardless of substrate stiffness. We also observed decreased levels of phosphorylated focal adhesion kinase (FAK) and paxillin on stiffer substrates which correlated with slower cell migration. These results indicate that substrate stiffness modulates lung cancer cell migration via focal adhesion signaling as opposed to EMT signaling.
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Affiliation(s)
- V C Shukla
- Department of Biomedical Engineering, the Ohio State University, Columbus, Ohio, 43210
| | - N Higuita-Castro
- Davis Heart and Lung Research Institute, the Ohio State University Wexner Medical Center, Columbus, Ohio, 43210
| | - P Nana-Sinkam
- Department of Internal Medicine, Division of Pulmonary, Allergy, Critical Care and Sleep Medicine, the Ohio State University Wexner Medical Center, Columbus, Ohio, 43210
| | - S N Ghadiali
- Department of Biomedical Engineering, the Ohio State University, Columbus, Ohio, 43210.,Department of Internal Medicine, Division of Pulmonary, Allergy, Critical Care and Sleep Medicine, the Ohio State University Wexner Medical Center, Columbus, Ohio, 43210.,Davis Heart and Lung Research Institute, the Ohio State University Wexner Medical Center, Columbus, Ohio, 43210
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