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Sharafutdinov I, Friedrich B, Rottner K, Backert S, Tegtmeyer N. Cortactin: A major cellular target of viral, protozoal, and fungal pathogens. Mol Microbiol 2024; 122:165-183. [PMID: 38868928 DOI: 10.1111/mmi.15284] [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: 11/05/2023] [Revised: 05/22/2024] [Accepted: 05/27/2024] [Indexed: 06/14/2024]
Abstract
Many viral, protozoal, and fungal pathogens represent major human and animal health problems due to their great potential of causing infectious diseases. Research on these pathogens has contributed substantially to our current understanding of both microbial virulence determinants and host key factors during infection. Countless studies have also shed light on the molecular mechanisms of host-pathogen interactions that are employed by these microbes. For example, actin cytoskeletal dynamics play critical roles in effective adhesion, host cell entry, and intracellular movements of intruding pathogens. Cortactin is an eminent host cell protein that stimulates actin polymerization and signal transduction, and recently emerged as fundamental player during host-pathogen crosstalk. Here we review the important role of cortactin as major target for various prominent viral, protozoal and fungal pathogens in humans, and its role in human disease development and cancer progression. Most if not all of these important classes of pathogens have been reported to hijack cortactin during infection through mediating up- or downregulation of cortactin mRNA and protein expression as well as signaling. In particular, pathogen-induced changes in tyrosine and serine phosphorylation status of cortactin at its major phospho-sites (Y-421, Y-470, Y-486, S-113, S-298, S-405, and S-418) are addressed. As has been reported for various Gram-negative and Gram-positive bacteria, many pathogenic viruses, protozoa, and fungi also control these regulatory phospho-sites, for example, by activating kinases such as Src, PAK, ERK1/2, and PKD, which are known to phosphorylate cortactin. In addition, the recruitment of cortactin and its interaction partners, like the Arp2/3 complex and F-actin, to the contact sites between pathogens and host cells is highlighted, as this plays an important role in the infection process and internalization of several pathogens. However, there are also other ways in which the pathogens can exploit the function of cortactin for their needs, as the cortactin-mediated regulation of cellular processes is complex and involves numerous different interaction partners. Here, the current state of knowledge is summarized.
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Affiliation(s)
- Irshad Sharafutdinov
- Department of Biology, Division of Microbiology, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Barbara Friedrich
- Department of Biology, Division of Microbiology, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Klemens Rottner
- Department of Cell Biology, Helmholtz Centre for Infection Research, Braunschweig, Germany
- Division of Molecular Cell Biology, Zoological Institute, Technische Universität Braunschweig, Braunschweig, Germany
| | - Steffen Backert
- Department of Biology, Division of Microbiology, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Nicole Tegtmeyer
- Department of Biology, Division of Microbiology, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
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Kim HI, Park J, Gallo D, Shankar S, Konecna B, Han Y, Banner-Goodspeed V, Capers KR, Ko SG, Otterbein LE, Itagaki K, Hauser CJ. DANGER Signals Activate G -Protein Receptor Kinases Suppressing Neutrophil Function and Predisposing to Infection After Tissue Trauma. Ann Surg 2023; 278:e1277-e1288. [PMID: 37154066 DOI: 10.1097/sla.0000000000005898] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
OBJECTIVE Injured tissue predisposes the subject to local and systemic infection. We studied injury-induced immune dysfunction seeking novel means to reverse such predisposition. BACKGROUND Injury mobilizes primitive "DANGER signals" [danger-associated molecular patterns (DAMPs)] activating innate immunocyte (neutrophils, PMN) signaling and function. Mitochondrial formyl peptides activate G -protein coupled receptors (GPCR) like formyl peptide receptor-1. Mitochondrial DNA and heme activate toll-like receptors (TLR9 and TLR2/4). GPCR kinases (GRKs) can regulate GPCR activation. METHODS We studied human and mouse PMN signaling elicited by mitochondrial DAMPs (GPCR surface expression; protein phosphorylation, or acetylation; Ca 2+ flux) and antimicrobial functions [cytoskeletal reorganization, chemotaxis (CTX), phagocytosis, bacterial killing] in cellular systems and clinical injury samples. Predicted rescue therapies were assessed in cell systems and mouse injury-dependent pneumonia models. RESULTS Mitochondrial formyl peptides activate GRK2, internalizing GPCRs and suppressing CTX. Mitochondrial DNA suppresses CTX, phagocytosis, and killing through TLR9 through a novel noncanonical mechanism that lacks GPCR endocytosis. Heme also activates GRK2. GRK2 inhibitors like paroxetine restore functions. GRK2 activation through TLR9 prevented actin reorganization, implicating histone deacetylases (HDACs). Actin polymerization, CTX, bacterial phagocytosis, and killing were also rescued, therefore, by the HDAC inhibitor valproate. Trauma repository PMN showed GRK2 activation and cortactin deacetylation, which varied with severity and was most marked in patients developing infections. Either GRK2 or HDAC inhibition prevented loss of mouse lung bacterial clearance, but only the combination rescued clearance when given postinjury. CONCLUSIONS Tissue injury-derived DAMPs suppress antimicrobial immunity through canonical GRK2 activation and a novel TLR-activated GRK2-pathway impairing cytoskeletal organization. Simultaneous GRK2/HDAC inhibition rescues susceptibility to infection after tissue injury.
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Affiliation(s)
- Hyo In Kim
- Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA
| | - Jinbong Park
- College of Korean Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - David Gallo
- Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA
| | - Sidharth Shankar
- Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA
| | - Barbora Konecna
- Institute of Molecular Biomedicine, Faculty of Medicine, Comenius University, Bratislava, Slovakia
| | - Yohan Han
- College of Korean Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - Valerie Banner-Goodspeed
- Department of Anesthesia, Critical Care and Pain Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA
| | - Krystal R Capers
- Department of Anesthesia, Critical Care and Pain Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA
| | - Seong-Gyu Ko
- College of Korean Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - Leo E Otterbein
- Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA
| | - Kiyoshi Itagaki
- Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA
| | - Carl J Hauser
- Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA
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Gomila Pelegri N, Stanczak AM, Bottomley AL, Milthorpe BK, Gorrie CA, Padula MP, Santos J. Adipose-Derived Stem Cells Spontaneously Express Neural Markers When Grown in a PEG-Based 3D Matrix. Int J Mol Sci 2023; 24:12139. [PMID: 37569515 PMCID: PMC10418654 DOI: 10.3390/ijms241512139] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 07/21/2023] [Accepted: 07/24/2023] [Indexed: 08/13/2023] Open
Abstract
Neurological diseases are among the leading causes of disability and death worldwide and remain difficult to treat. Tissue engineering offers avenues to test potential treatments; however, the development of biologically accurate models of brain tissues remains challenging. Given their neurogenic potential and availability, adipose-derived stem cells (ADSCs) are of interest for creating neural models. While progress has been made in differentiating ADSCs into neural cells, their differentiation in 3D environments, which are more representative of the in vivo physiological conditions of the nervous system, is crucial. This can be achieved by modulating the 3D matrix composition and stiffness. Human ADSCs were cultured for 14 days in a 1.1 kPa polyethylene glycol-based 3D hydrogel matrix to assess effects on cell morphology, cell viability, proteome changes and spontaneous neural differentiation. Results showed that cells continued to proliferate over the 14-day period and presented a different morphology to 2D cultures, with the cells elongating and aligning with one another. The proteome analysis revealed 439 proteins changed in abundance by >1.5 fold. Cyclic nucleotide 3'-phosphodiesterase (CNPase) markers were identified using immunocytochemistry and confirmed with proteomics. Findings indicate that ADSCs spontaneously increase neural marker expression when grown in an environment with similar mechanical properties to the central nervous system.
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Affiliation(s)
- Neus Gomila Pelegri
- Advanced Tissue Engineering and Stem Cell Biology Group, School of Life Sciences, University of Technology Sydney, Ultimo, NSW 2007, Australia; (N.G.P.); (B.K.M.)
- Neural Injury Research Unit, School of Life Sciences, University of Technology Sydney, Ultimo, NSW 2007, Australia;
| | - Aleksandra M. Stanczak
- School of Life Sciences, University of Technology Sydney, Ultimo, NSW 2007, Australia; (A.M.S.); (M.P.P.)
| | - Amy L. Bottomley
- Microbial Imaging Facility, University of Technology Sydney, Ultimo, NSW 2007, Australia;
| | - Bruce K. Milthorpe
- Advanced Tissue Engineering and Stem Cell Biology Group, School of Life Sciences, University of Technology Sydney, Ultimo, NSW 2007, Australia; (N.G.P.); (B.K.M.)
| | - Catherine A. Gorrie
- Neural Injury Research Unit, School of Life Sciences, University of Technology Sydney, Ultimo, NSW 2007, Australia;
| | - Matthew P. Padula
- School of Life Sciences, University of Technology Sydney, Ultimo, NSW 2007, Australia; (A.M.S.); (M.P.P.)
| | - Jerran Santos
- Advanced Tissue Engineering and Stem Cell Biology Group, School of Life Sciences, University of Technology Sydney, Ultimo, NSW 2007, Australia; (N.G.P.); (B.K.M.)
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Fu Y, Sui Y, Zhao Y, Jiang J, Wang X, Cui J, Fu X, Xing S, Zhao ZJ. PZR promotes tumorigenicity of lung cancer cells by regulating cell migration and invasion via modulating oxidative stress and cell adhesion. Aging (Albany NY) 2023; 15:204771. [PMID: 37279992 PMCID: PMC10292906 DOI: 10.18632/aging.204771] [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: 03/14/2023] [Accepted: 05/17/2023] [Indexed: 06/08/2023]
Abstract
PZR is a transmembrane glycoprotein encoded by the MPZL1 gene. It serves as a specific binding protein and substrate of tyrosine phosphatase SHP-2 whose mutations cause developmental diseases and cancers. Bioinformatic analyses of cancer gene databases revealed that PZR is overexpressed in lung cancer and correlated with unfavorable prognosis. To investigate the role of PZR in lung cancer, we employed the CRISPR technique to knockout its expression and recombinant lentiviruses to overexpress it in lung adenocarcinoma SPC-A1 cells. While knockout of PZR reduced colony formation, migration, and invasion, overexpression of PZR had the opposite effects. Furthermore, when implanted in immunodeficient mice, PZR-knockout SPC-A1 cells showed suppressed tumor-forming ability. Finally, the underlying molecular mechanism for these functions of PZR is its positive role in activating tyrosine kinases FAK and c-Src and in maintaining the intracellular level of reactive oxygen species (ROS). In conclusion, our data indicated that PZR plays an important role in lung cancer development, and it may serve as a therapeutic target for anti-cancer development and as a biomarker for cancer prognosis.
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Affiliation(s)
- Ying Fu
- Edmond H. Fischer Signal Transduction Laboratory, School of Life Sciences, Jilin University, Changchun, China
| | - Yuan Sui
- Edmond H. Fischer Signal Transduction Laboratory, School of Life Sciences, Jilin University, Changchun, China
| | - Yuming Zhao
- Edmond H. Fischer Signal Transduction Laboratory, School of Life Sciences, Jilin University, Changchun, China
| | - Jianzhuo Jiang
- Edmond H. Fischer Signal Transduction Laboratory, School of Life Sciences, Jilin University, Changchun, China
| | - Xueyuan Wang
- Edmond H. Fischer Signal Transduction Laboratory, School of Life Sciences, Jilin University, Changchun, China
| | - Jiarui Cui
- Department of Laboratory Medicine, Jilin Medical University, Jilin, China
| | - Xueqi Fu
- Edmond H. Fischer Signal Transduction Laboratory, School of Life Sciences, Jilin University, Changchun, China
| | - Shu Xing
- Edmond H. Fischer Signal Transduction Laboratory, School of Life Sciences, Jilin University, Changchun, China
| | - Zhizhuang Joe Zhao
- Department of Pathology, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA
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5
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Wong DCP, Pan CQ, Er SY, Thivakar T, Rachel TZY, Seah SH, Chua PJ, Jiang T, Chew TW, Chaudhuri PK, Mukherjee S, Salim A, Aye TA, Koh CG, Lim CT, Tan PH, Bay BH, Ridley AJ, Low BC. The scaffold RhoGAP protein ARHGAP8/BPGAP1 synchronizes Rac and Rho signaling to facilitate cell migration. Mol Biol Cell 2023; 34:ar13. [PMID: 36598812 PMCID: PMC10011724 DOI: 10.1091/mbc.e21-03-0099] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Revised: 12/14/2022] [Accepted: 12/21/2022] [Indexed: 01/05/2023] Open
Abstract
Rho GTPases regulate cell morphogenesis and motility under the tight control of guanine nucleotide exchange factors (GEFs) and GTPase-activating proteins (GAPs). However, the underlying mechanism(s) that coordinate their spatiotemporal activities, whether separately or together, remain unclear. We show that a prometastatic RhoGAP, ARHGAP8/BPGAP1, binds to inactive Rac1 and localizes to lamellipodia. BPGAP1 recruits the RacGEF Vav1 under epidermal growth factor (EGF) stimulation and activates Rac1, leading to polarized cell motility, spreading, invadopodium formation, and cell extravasation and promotes cancer cell migration. Importantly, BPGAP1 down-regulates local RhoA activity, which influences Rac1 binding to BPGAP1 and its subsequent activation by Vav1. Our results highlight the importance of BPGAP1 in recruiting Vav1 and Rac1 to promote Rac1 activation for cell motility. BPGAP1 also serves to control the timing of Rac1 activation with RhoA inactivation via its RhoGAP activity. BPGAP1, therefore, acts as a dual-function scaffold that recruits Vav1 to activate Rac1 while inactivating RhoA to synchronize both Rho and Rac signaling in cell motility. As epidermal growth factor receptor (EGFR), Vav1, RhoA, Rac1, and BPGAP1 are all associated with cancer metastasis, BPGAP1 could provide a crucial checkpoint for the EGFR-BPGAP1-Vav1-Rac1-RhoA signaling axis for cancer intervention.
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Affiliation(s)
| | | | - Shi Yin Er
- Cell Signaling and Developmental Biology Laboratory, Department of Biological Sciences, National University of Singapore, Singapore 117558
| | - T. Thivakar
- Mechanobiology Institute, National University of Singapore, Singapore 117411
| | - Tan Zi Yi Rachel
- Mechanobiology Institute, National University of Singapore, Singapore 117411
| | - Sock Hong Seah
- Mechanobiology Institute, National University of Singapore, Singapore 117411
| | - Pei Jou Chua
- Department of Anatomy, Yong Loo Lin School of Medicine, National University Health System, Singapore 117594
| | - Tingting Jiang
- Cell Signaling and Developmental Biology Laboratory, Department of Biological Sciences, National University of Singapore, Singapore 117558
| | - Ti Weng Chew
- Mechanobiology Institute, National University of Singapore, Singapore 117411
| | | | - Somsubhro Mukherjee
- Mechanobiology Institute, National University of Singapore, Singapore 117411
| | - Agus Salim
- Melbourne School of Population and Global Health and School of Mathematics and Statistics, The University of Melbourne, Melbourne, Victoria 3052, Australia
| | - Thike Aye Aye
- Department of Pathology, Singapore General Hospital, Singapore 169856
| | - Cheng Gee Koh
- Division of Molecular Genetics & Cell Biology, School of Biological Sciences, Nanyang Technological University, Singapore 637551
| | - Chwee Teck Lim
- Mechanobiology Institute, National University of Singapore, Singapore 117411
- Department of Biomedical Engineering, National University of Singapore, Singapore 117583
| | - Puay Hoon Tan
- Department of Pathology, Singapore General Hospital, Singapore 169856
| | - Boon Huat Bay
- Department of Anatomy, Yong Loo Lin School of Medicine, National University Health System, Singapore 117594
| | - Anne J. Ridley
- School of Cellular and Molecular Medicine, University of Bristol, Bristol BS8 1TD, United Kingdom
| | - Boon Chuan Low
- Mechanobiology Institute, National University of Singapore, Singapore 117411
- Cell Signaling and Developmental Biology Laboratory, Department of Biological Sciences, National University of Singapore, Singapore 117558
- NUS College, National University of Singapore, Singapore 138593
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Xue Y, Li M, Hu J, Song Y, Guo W, Miao C, Ge D, Hou Y, Wang X, Huang X, Liu T, Zhang X, Huang Q. Ca v2.2-NFAT2-USP43 axis promotes invadopodia formation and breast cancer metastasis through cortactin stabilization. Cell Death Dis 2022; 13:812. [PMID: 36137995 PMCID: PMC9500045 DOI: 10.1038/s41419-022-05174-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Revised: 08/03/2022] [Accepted: 08/09/2022] [Indexed: 01/23/2023]
Abstract
Distant metastasis is the main cause of mortality in breast cancer patients. Using the breast cancer genomic data from The Cancer Genome Atlas (TCGA), we identified brain specific Cav2.2 as a critical regulator of metastasis. Cav2.2 expression is significantly upregulated in breast cancer and its higher expression is inversely correlated with survival suggesting a previously unappreciated role of Cav2.2 in breast cancer. Cav2.2 is required for breast cancer migration, invasion, and metastasis. Interestingly, Cav2.2 promotes invadopodia formation and extracellular matrix (ECM) degradation through the stabilization of invadopodia component cortactin in a proteosome-dependent manner. Moreover, deubiquitinating enzyme USP43 mediated the functions of Cav2.2 in cortactin stabilization, invadopodia formation, ECM degradation, and metastasis. Interestingly, Cav2.2 upregulates USP43 expression through NFAT2 dephosphorylation and nuclear localization. Our study uncovered a novel pathway that regulates cortactin expression and invadopodia formation in breast cancer metastasis.
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Affiliation(s)
- Ying Xue
- grid.8547.e0000 0001 0125 2443Cancer Center, Zhongshan Hospital, Fudan University, Shanghai, PR China ,grid.8547.e0000 0001 0125 2443Institute of Clinical Sciences, Zhongshan Hospital, Fudan University, Shanghai, PR China
| | - Min Li
- grid.8547.e0000 0001 0125 2443Cancer Center, Zhongshan Hospital, Fudan University, Shanghai, PR China ,grid.8547.e0000 0001 0125 2443Institute of Clinical Sciences, Zhongshan Hospital, Fudan University, Shanghai, PR China
| | - Jie Hu
- grid.8547.e0000 0001 0125 2443Department of Pulmonary and Critical Care Medicine, Zhongshan Hospital, Fudan University, Shanghai, PR China
| | - Yuanlin Song
- grid.8547.e0000 0001 0125 2443Department of Pulmonary and Critical Care Medicine, Zhongshan Hospital, Fudan University, Shanghai, PR China
| | - Wei Guo
- grid.8547.e0000 0001 0125 2443Department of Laboratory Medicine, Zhongshan Hospital, Fudan University, Shanghai, PR China
| | - Changhong Miao
- grid.8547.e0000 0001 0125 2443Cancer Center, Zhongshan Hospital, Fudan University, Shanghai, PR China ,grid.8547.e0000 0001 0125 2443Department of Anesthesiology, Zhongshan Hospital, Fudan University, Shanghai, PR China
| | - Di Ge
- grid.8547.e0000 0001 0125 2443Department of Thoracic Surgery, Zhongshan Hospital, Fudan University, Shanghai, PR China
| | - Yingyong Hou
- grid.8547.e0000 0001 0125 2443Department of Pathology, Zhongshan Hospital, Fudan University, Shanghai, PR China
| | - Xuefei Wang
- grid.8547.e0000 0001 0125 2443Department of General Surgery/Gastric Cancer Center, Zhongshan Hospital, Fudan University, Shanghai, PR China
| | - Xingxu Huang
- grid.440637.20000 0004 4657 8879School of Life Science and Technology, ShanghaiTech University, Shanghai, PR China
| | - Tianshu Liu
- grid.8547.e0000 0001 0125 2443Cancer Center, Zhongshan Hospital, Fudan University, Shanghai, PR China ,grid.8547.e0000 0001 0125 2443Department of Medicial Oncology, Zhongshan Hospital, Fudan University, Shanghai, PR China
| | - Xiaoping Zhang
- grid.24516.340000000123704535The Institute of Intervention Vessel, Tongji University School of Medicine, Shanghai, PR China
| | - Qihong Huang
- grid.8547.e0000 0001 0125 2443Cancer Center, Zhongshan Hospital, Fudan University, Shanghai, PR China ,grid.8547.e0000 0001 0125 2443Institute of Clinical Sciences, Zhongshan Hospital, Fudan University, Shanghai, PR China ,grid.413087.90000 0004 1755 3939Shanghai Respiratory Research Institute, Shanghai, PR China
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7
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Wu B, Wang YX, Wang JJ, Xiang DF, Zhang MS, Yan ZX, Wang WY, Miao JY, Lan X, Liu JJ, Li ZY, Li C, Fan JY, Liu JY, Jiang L, Xu SL, Cui YH, Qian F. PLXDC2 enhances invadopodium formation to promote invasion and metastasis of gastric cancer cells via interacting with PTP1B. Clin Exp Metastasis 2022; 39:691-710. [PMID: 35661947 PMCID: PMC9338914 DOI: 10.1007/s10585-022-10168-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Accepted: 04/14/2022] [Indexed: 11/27/2022]
Abstract
Plexin-domain containing 2 (PLXDC2) has been reported as an oncoprotein in several human malignancies. However, its expression and roles in gastric cancer remain largely unclear. In this study, we found that PLXDC2 was highly expressed in gastric cancer tissues, and the expression levels were positively correlated with clinicopathological features, but negatively with the patients’ outcome. Cox regression analysis identified PLXDC2 as an independent prognostic indicator for the patients. Knockdown of PLXDC2 markedly suppressed the in vitro invasion and in vivo metastasis of gastric cancer cells, while overexpression of PLXDC2 resulted in opposite effects. Mechanistically, PLXDC2 enhanced the level of phosphorylated Cortactin (p-Cortactin) by physically interacting with protein tyrosine phosphatase 1B (PTP1B), an important dephosphorylase, to prevent its dephosphorylating of p-Cortactin, thereby promoting the formation of invadopodia. Collectively, our results indicate that PLXDC2 contributes to the invasion and metastasis of gastric cancer by inhibiting PTP1B to facilitate the invadopodium formation, and may serve as a potential prognostic biomarker and a therapeutic target for this disease.
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Affiliation(s)
- Bin Wu
- Department of General Surgery and Center of Minimal Invasive Gastrointestinal Surgery, Southwest Hospital, Army Medical University (Third Military Medical University), No. 30 Gaotanyan Street, Chongqing, 400038, China
| | - Yan-Xia Wang
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Army Medical University (Third Military Medical University), No. 30 Gaotanyan Street, Chongqing, 400038, China
| | - Jun-Jie Wang
- Department of General Surgery and Center of Minimal Invasive Gastrointestinal Surgery, Southwest Hospital, Army Medical University (Third Military Medical University), No. 30 Gaotanyan Street, Chongqing, 400038, China
| | - Dong-Fang Xiang
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Army Medical University (Third Military Medical University), No. 30 Gaotanyan Street, Chongqing, 400038, China
| | - Meng-Si Zhang
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Army Medical University (Third Military Medical University), No. 30 Gaotanyan Street, Chongqing, 400038, China
| | - Ze-Xuan Yan
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Army Medical University (Third Military Medical University), No. 30 Gaotanyan Street, Chongqing, 400038, China
| | - Wen-Ying Wang
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Army Medical University (Third Military Medical University), No. 30 Gaotanyan Street, Chongqing, 400038, China
| | - Jing-Ya Miao
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Army Medical University (Third Military Medical University), No. 30 Gaotanyan Street, Chongqing, 400038, China
| | - Xi Lan
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Army Medical University (Third Military Medical University), No. 30 Gaotanyan Street, Chongqing, 400038, China
| | - Jia-Jia Liu
- Department of General Surgery and Center of Minimal Invasive Gastrointestinal Surgery, Southwest Hospital, Army Medical University (Third Military Medical University), No. 30 Gaotanyan Street, Chongqing, 400038, China
| | - Zheng-Yan Li
- Department of General Surgery and Center of Minimal Invasive Gastrointestinal Surgery, Southwest Hospital, Army Medical University (Third Military Medical University), No. 30 Gaotanyan Street, Chongqing, 400038, China
| | - Chuan Li
- Department of General Surgery and Center of Minimal Invasive Gastrointestinal Surgery, Southwest Hospital, Army Medical University (Third Military Medical University), No. 30 Gaotanyan Street, Chongqing, 400038, China
| | - Jun-Yan Fan
- Department of General Surgery and Center of Minimal Invasive Gastrointestinal Surgery, Southwest Hospital, Army Medical University (Third Military Medical University), No. 30 Gaotanyan Street, Chongqing, 400038, China
| | - Jun-Yan Liu
- Department of General Surgery and Center of Minimal Invasive Gastrointestinal Surgery, Southwest Hospital, Army Medical University (Third Military Medical University), No. 30 Gaotanyan Street, Chongqing, 400038, China
| | - Lei Jiang
- Department of General Surgery and Center of Minimal Invasive Gastrointestinal Surgery, Southwest Hospital, Army Medical University (Third Military Medical University), No. 30 Gaotanyan Street, Chongqing, 400038, China
| | - Sen-Lin Xu
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Army Medical University (Third Military Medical University), No. 30 Gaotanyan Street, Chongqing, 400038, China
| | - You-Hong Cui
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Army Medical University (Third Military Medical University), No. 30 Gaotanyan Street, Chongqing, 400038, China.
| | - Feng Qian
- Department of General Surgery and Center of Minimal Invasive Gastrointestinal Surgery, Southwest Hospital, Army Medical University (Third Military Medical University), No. 30 Gaotanyan Street, Chongqing, 400038, China.
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8
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Belvitch P, Casanova N, Sun X, Camp SM, Sammani S, Brown ME, Mascarhenas J, Lynn H, Adyshev D, Siegler J, Desai A, Seyed-Saadat L, Rizzo A, Bime C, Shekhawat GS, Dravid VP, Reilly JP, Jones TK, Feng R, Letsiou E, Meyer NJ, Ellis N, Garcia JGN, Dudek SM. A cortactin CTTN coding SNP contributes to lung vascular permeability and inflammatory disease severity in African descent subjects. Transl Res 2022; 244:56-74. [PMID: 35181549 PMCID: PMC9119916 DOI: 10.1016/j.trsl.2022.02.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Revised: 01/20/2022] [Accepted: 02/10/2022] [Indexed: 12/19/2022]
Abstract
The cortactin gene (CTTN), encoding an actin-binding protein critically involved in cytoskeletal dynamics and endothelial cell (EC) barrier integrity, contains single nucleotide polymorphisms (SNPs) associated with severe asthma in Black patients. As loss of lung EC integrity is a major driver of mortality in the Acute Respiratory Distress Syndrome (ARDS), sepsis, and the acute chest syndrome (ACS), we speculated CTTN SNPs that alter EC barrier function will associate with clinical outcomes from these types of conditions in Black patients. In case-control studies, evaluation of a nonsynonymous CTTN coding SNP Ser484Asn (rs56162978, G/A) in a severe sepsis cohort (725 Black subjects) revealed significant association with increased risk of sepsis mortality. In a separate cohort of sickle cell disease (SCD) subjects with and without ACS (177 SCD Black subjects), significantly increased risk of ACS and increased ACS severity (need for mechanical ventilation) was observed in carriers of the A allele. Human lung EC expressing the cortactin S484N transgene exhibited: (i) delayed EC barrier recovery following thrombin-induced permeability; (ii) reduced levels of critical Tyr486 cortactin phosphorylation; (iii) inhibited binding to the cytoskeletal regulator, nmMLCK; and (iv) attenuated EC barrier-promoting lamellipodia dynamics and biophysical responses. ARDS-challenged Cttn+/- heterozygous mice exhibited increased lung vascular permeability (compared to wild-type mice) which was significantly attenuated by IV delivery of liposomes encargoed with CTTN WT transgene but not by CTTN S484N transgene. In summary, these studies suggest that the CTTN S484N coding SNP contributes to severity of inflammatory injury in Black patients, potentially via delayed vascular barrier restoration.
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Affiliation(s)
- Patrick Belvitch
- Division of Pulmonary, Critical Care, Sleep and Allergy, Department of Medicine, University of Illinois at Chicago, Chicago, Illinois
| | - Nancy Casanova
- Department of Medicine, University of Arizona Health Sciences, Tucson, Arizona
| | - Xiaoguang Sun
- Department of Medicine, University of Arizona Health Sciences, Tucson, Arizona
| | - Sara M Camp
- Department of Medicine, University of Arizona Health Sciences, Tucson, Arizona
| | - Saad Sammani
- Department of Medicine, University of Arizona Health Sciences, Tucson, Arizona
| | | | - Joseph Mascarhenas
- Department of Medicine, University of Arizona Health Sciences, Tucson, Arizona
| | - Heather Lynn
- Department of Medicine, University of Arizona Health Sciences, Tucson, Arizona
| | - Djanybek Adyshev
- Division of Pulmonary, Critical Care, Sleep and Allergy, Department of Medicine, University of Illinois at Chicago, Chicago, Illinois
| | - Jessica Siegler
- Division of Pulmonary, Critical Care, Sleep and Allergy, Department of Medicine, University of Illinois at Chicago, Chicago, Illinois
| | - Ankit Desai
- Department of Medicine, Indiana University, Indianapolis, Indiana
| | - Laleh Seyed-Saadat
- Division of Pulmonary, Critical Care, Sleep and Allergy, Department of Medicine, University of Illinois at Chicago, Chicago, Illinois
| | - Alicia Rizzo
- Division of Pulmonary, Critical Care, Sleep and Allergy, Department of Medicine, University of Illinois at Chicago, Chicago, Illinois
| | - Christian Bime
- Department of Medicine, University of Arizona Health Sciences, Tucson, Arizona
| | - Gajendra S Shekhawat
- Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois
| | - Vinayak P Dravid
- Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois
| | - John P Reilly
- Division of Pulmonary, Allergy, and Critical Care Medicine and Lung Biology Institute, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania
| | - Tiffanie K Jones
- Division of Pulmonary, Allergy, and Critical Care Medicine and Lung Biology Institute, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania
| | - Rui Feng
- Department of Biostatistics, Epidemiology, and Informatics, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania
| | - Eleftheria Letsiou
- Division of Pulmonary, Critical Care, Sleep and Allergy, Department of Medicine, University of Illinois at Chicago, Chicago, Illinois
| | - Nuala J Meyer
- Division of Pulmonary, Allergy, and Critical Care Medicine and Lung Biology Institute, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania
| | - Nathan Ellis
- Department of Medicine, University of Arizona Health Sciences, Tucson, Arizona
| | - Joe G N Garcia
- Department of Medicine, University of Arizona Health Sciences, Tucson, Arizona
| | - Steven M Dudek
- Division of Pulmonary, Critical Care, Sleep and Allergy, Department of Medicine, University of Illinois at Chicago, Chicago, Illinois.
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9
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Bandela M, Belvitch P, Garcia JGN, Dudek SM. Cortactin in Lung Cell Function and Disease. Int J Mol Sci 2022; 23:4606. [PMID: 35562995 PMCID: PMC9101201 DOI: 10.3390/ijms23094606] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Revised: 04/18/2022] [Accepted: 04/19/2022] [Indexed: 11/30/2022] Open
Abstract
Cortactin (CTTN) is an actin-binding and cytoskeletal protein that is found in abundance in the cell cortex and other peripheral structures of most cell types. It was initially described as a target for Src-mediated phosphorylation at several tyrosine sites within CTTN, and post-translational modifications at these tyrosine sites are a primary regulator of its function. CTTN participates in multiple cellular functions that require cytoskeletal rearrangement, including lamellipodia formation, cell migration, invasion, and various other processes dependent upon the cell type involved. The role of CTTN in vascular endothelial cells is particularly important for promoting barrier integrity and inhibiting vascular permeability and tissue edema. To mediate its functional effects, CTTN undergoes multiple post-translational modifications and interacts with numerous other proteins to alter cytoskeletal structures and signaling mechanisms. In the present review, we briefly describe CTTN structure, post-translational modifications, and protein binding partners and then focus on its role in regulating cellular processes and well-established functional mechanisms, primarily in vascular endothelial cells and disease models. We then provide insights into how CTTN function affects the pathophysiology of multiple lung disorders, including acute lung injury syndromes, COPD, and asthma.
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Affiliation(s)
- Mounica Bandela
- Department of Biomedical Engineering, College of Engineering, University of Illinois at Chicago, Chicago, IL 60607, USA;
- Division of Pulmonary, Critical Care, Sleep and Allergy, Department of Medicine, University of Illinois at Chicago, Chicago, IL 60612, USA;
| | - Patrick Belvitch
- Division of Pulmonary, Critical Care, Sleep and Allergy, Department of Medicine, University of Illinois at Chicago, Chicago, IL 60612, USA;
| | - Joe G. N. Garcia
- Department of Medicine, University of Arizona, Tucson, AZ 85721, USA;
| | - Steven M. Dudek
- Division of Pulmonary, Critical Care, Sleep and Allergy, Department of Medicine, University of Illinois at Chicago, Chicago, IL 60612, USA;
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10
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Augustin V, Kins S. Fe65: A Scaffolding Protein of Actin Regulators. Cells 2021; 10:cells10071599. [PMID: 34202290 PMCID: PMC8304848 DOI: 10.3390/cells10071599] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Revised: 06/19/2021] [Accepted: 06/21/2021] [Indexed: 01/19/2023] Open
Abstract
The scaffolding protein family Fe65, composed of Fe65, Fe65L1, and Fe65L2, was identified as an interaction partner of the amyloid precursor protein (APP), which plays a key function in Alzheimer’s disease. All three Fe65 family members possess three highly conserved interaction domains, forming complexes with diverse binding partners that can be assigned to different cellular functions, such as transactivation of genes in the nucleus, modulation of calcium homeostasis and lipid metabolism, and regulation of the actin cytoskeleton. In this article, we rule out putative new intracellular signaling mechanisms of the APP-interacting protein Fe65 in the regulation of actin cytoskeleton dynamics in the context of various neuronal functions, such as cell migration, neurite outgrowth, and synaptic plasticity.
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11
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Kaji K, Kaji N, Hori M, Sakai K, Yonezawa T, Maeda S. Protease-Activated Receptor-2 Is Associated With Adverse Outcomes in Canine Mammary Carcinoma. Vet Pathol 2020; 58:53-62. [PMID: 33054598 DOI: 10.1177/0300985820963087] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Protease-activated receptor-2 (PAR2) is a G protein-coupled receptor that is activated by serine proteases. In humans, PAR2 is highly expressed in various cancers, including breast cancer, and is associated with cancer progression and metastasis. However, the expression and roles of PAR2 in canine mammary carcinoma remain unclear. The purpose of this study was to examine the expression of PAR2 in canine mammary carcinoma, the association between PAR2 expression and clinical characteristics, and the role of PAR2 in the metastatic phenotypes of tumor cells. Mammary carcinoma from 31 dogs and 10 normal mammary glands were included in this study, and used for immunohistochemical analysis of PAR2 expression. Normal mammary glands did not express PAR2. In contrast, mammary carcinomas showed PAR2 immunoreactivity in the cytoplasm, and its expression level varied between specimens from negative to strongly positive. The overall survival of dogs with high PAR2 expression was shorter than that of dogs with low PAR2 expression. Moreover, PAR2 expression level was associated with the presence of lymph node involvement, advanced clinical stage, and high histopathological grade. In vitro analyses revealed that a PAR2 agonist accelerated cell migration and invasion in a canine mammary carcinoma cell line. In addition, the PAR2 agonist induced epithelial-mesenchymal transition and actin polymerization. These results suggest that PAR2 expression plays a role in tumor progression and clinical outcomes in canine mammary carcinoma.
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Affiliation(s)
- Kenjiro Kaji
- Department of Veterinary Clinical Pathobiology, Graduate School of Agricultural and Life Sciences, 13143The University of Tokyo, Japan
| | - Noriyuki Kaji
- Department of Veterinary Clinical Pathobiology, Graduate School of Agricultural and Life Sciences, 13143The University of Tokyo, Japan
| | - Masatoshi Hori
- Department of Veterinary Clinical Pathobiology, Graduate School of Agricultural and Life Sciences, 13143The University of Tokyo, Japan
| | - Kosei Sakai
- Department of Veterinary Clinical Pathobiology, Graduate School of Agricultural and Life Sciences, 13143The University of Tokyo, Japan
| | - Tomohiro Yonezawa
- Department of Veterinary Clinical Pathobiology, Graduate School of Agricultural and Life Sciences, 13143The University of Tokyo, Japan
| | - Shingo Maeda
- Department of Veterinary Clinical Pathobiology, Graduate School of Agricultural and Life Sciences, 13143The University of Tokyo, Japan
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12
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Mutated lamin A modulates stiffness in muscle cells. Biochem Biophys Res Commun 2020; 529:861-867. [PMID: 32540097 DOI: 10.1016/j.bbrc.2020.05.102] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Accepted: 05/13/2020] [Indexed: 02/07/2023]
Abstract
The cytoskeleton is a complex network interlinking filaments that extend throughout the cytoplasm from the nucleus to the plasma membrane. Three major types of filaments are found in the cytoskeleton: actin filaments, microtubules, and intermediate filaments. They play a key role in the ability of cells to both resist mechanical stress and generate force. However, the precise involvement of intermediate filament proteins in these processes remains unclear. Here, we focused on nuclear A-type lamins, which are connected to the cytoskeleton via the Linker of Nucleoskeleton and Cytoskeleton (LINC) complex. Using micro-constriction rheology, we investigated the impact of A-type lamins (p.H222P) mutation on the mechanical properties of muscle cells. We demonstrate that the expression of point mutation of lamin A in muscle cells increases cellular stiffness compared with cells expressing wild type lamin A and that the chemical agent selumetinib, an inhibitor of the ERK1/2 signaling, reversed the mechanical alterations in mutated cells. These results highlight the interplay between A-type lamins and mechano-signaling, which are supported by cell biology measurements.
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13
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Sharafutdinov I, Backert S, Tegtmeyer N. Cortactin: A Major Cellular Target of the Gastric Carcinogen Helicobacter pylori. Cancers (Basel) 2020; 12:E159. [PMID: 31936446 PMCID: PMC7017262 DOI: 10.3390/cancers12010159] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Revised: 01/04/2020] [Accepted: 01/06/2020] [Indexed: 12/19/2022] Open
Abstract
Cortactin is an actin binding protein and actin nucleation promoting factor regulating cytoskeletal rearrangements in nearly all eukaryotic cell types. From this perspective, cortactin poses an attractive target for pathogens to manipulate a given host cell to their own benefit. One of the pathogens following this strategy is Helicobacter pylori, which can cause a variety of gastric diseases and has been shown to be the major risk factor for the onset of gastric cancer. During infection of gastric epithelial cells, H. pylori hijacks the cellular kinase signaling pathways, leading to the disruption of key cell functions. Specifically, by overruling the phosphorylation status of cortactin, H. pylori alternates the activity of molecular interaction partners of this important protein, thereby manipulating the performance of actin-cytoskeletal rearrangements and cell movement. In addition, H. pylori utilizes a unique mechanism to activate focal adhesion kinase, which subsequently prevents host epithelial cells from extensive lifting from the extracellular matrix in order to achieve chronic infection in the human stomach.
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Affiliation(s)
| | | | - Nicole Tegtmeyer
- Division of Microbiology, Department of Biology, Friedrich Alexander University Erlangen-Nuremberg, Staudtstr. 5, D-91058 Erlangen, Germany; (I.S.); (S.B.)
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14
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Ali AAH, Schwarz-Herzke B, Rollenhagen A, Anstötz M, Holub M, Lübke J, Rose CR, Schnittler HJ, von Gall C. Bmal1-deficiency affects glial synaptic coverage of the hippocampal mossy fiber synapse and the actin cytoskeleton in astrocytes. Glia 2019; 68:947-962. [PMID: 31743496 DOI: 10.1002/glia.23754] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Revised: 10/30/2019] [Accepted: 10/31/2019] [Indexed: 01/13/2023]
Abstract
Bmal1 is an essential component of the molecular clockwork, which drives circadian rhythms in cell function. In Bmal1-deficient (Bmal1-/-) mice, chronodisruption is associated with cognitive deficits and progressive brain pathology including astrocytosis indicated by increased expression of glial fibrillary acidic protein (GFAP). However, relatively little is known about the impact of Bmal1-deficiency on astrocyte morphology prior to astrocytosis. Therefore, in this study we analysed astrocyte morphology in young (6-8 weeks old) adult Bmal1-/- mice. At this age, overall GFAP immunoreactivity was not increased in Bmal1-deficient mice. At the ultrastructural level, we found a decrease in the volume fraction of the fine astrocytic processes that cover the hippocampal mossy fiber synapse, suggesting an impairment of perisynaptic processes and their contribution to neurotransmission. For further analyses of actin cytoskeleton, which is essential for distal process formation, we used cultured Bmal1-/- astrocytes. Bmal1-/- astrocytes showed an impaired formation of actin stress fibers. Moreover, Bmal1-/- astrocytes showed reduced levels of the actin-binding protein cortactin (CTTN). Cttn promoter region contains an E-Box like element and chromatin immunoprecipitation revealed that Cttn is a potential Bmal1 target gene. In addition, the level of GTP-bound (active) Rho-GTPase (Rho-GTP) was reduced in Bmal1-/- astrocytes. In summary, our data demonstrate that Bmal1-deficiency affects morphology of the fine astrocyte processes prior to strong upregulation of GFAP, presumably because of impaired Cttn expression and reduced Rho-GTP activation. These morphological changes might result in altered synaptic function and, thereby, relate to cognitive deficits in chronodisruption.
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Affiliation(s)
- Amira A H Ali
- Institute of Anatomy II, Medical Faculty, Heinrich Heine University, Düsseldorf, Germany
| | - Beryl Schwarz-Herzke
- Institute of Anatomy II, Medical Faculty, Heinrich Heine University, Düsseldorf, Germany
| | - Astrid Rollenhagen
- Institute of Neuroscience and Medicine INM-10, Research Centre Jülich GmbH, Jülich, Germany
| | - Max Anstötz
- Institute of Neuroscience and Medicine INM-10, Research Centre Jülich GmbH, Jülich, Germany
| | - Martin Holub
- Institute of Anatomy II, Medical Faculty, Heinrich Heine University, Düsseldorf, Germany
| | - Joachim Lübke
- Institute of Neuroscience and Medicine INM-10, Research Centre Jülich GmbH, Jülich, Germany.,Department of Psychiatry, Psychotherapy and Psychosomatics, Medical Faculty/RWTH University Hospital Aachen, Aachen, Germany.,Institute of Neuroscience and Medicine INM-10, JARA Translational Brain Medicine, Aachen, Germany
| | - Christine R Rose
- Institute of Neurobiology, Faculty of Mathematics and Natural Sciences, Heinrich Heine University, Düsseldorf, Germany
| | - Hans-Joachim Schnittler
- Institute of Anatomy and Vascular Biology, Medical Faculty, Westfälische Wilhelms University, Münster, Germany
| | - Charlotte von Gall
- Institute of Anatomy II, Medical Faculty, Heinrich Heine University, Düsseldorf, Germany
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15
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Hasan MK, Widhopf GF, Zhang S, Lam SM, Shen Z, Briggs SP, Parker BA, Kipps TJ. Wnt5a induces ROR1 to recruit cortactin to promote breast-cancer migration and metastasis. NPJ Breast Cancer 2019; 5:35. [PMID: 31667337 PMCID: PMC6814774 DOI: 10.1038/s41523-019-0131-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Accepted: 09/20/2019] [Indexed: 01/27/2023] Open
Abstract
ROR1 is a conserved oncoembryonic surface protein expressed in breast cancer. Here we report that ROR1 associates with cortactin in primary breast-cancer cells or in MCF7 transfected to express ROR1. Wnt5a also induced ROR1-dependent tyrosine phosphorylation of cortactin (Y421), which recruited ARHGEF1 to activate RhoA and promote breast-cancer-cell migration; such effects could be inhibited by cirmtuzumab, a humanized mAb specific for ROR1. Furthermore, treatment of mice bearing breast-cancer xenograft with cirmtuzumab inhibited cortactin phosphorylation in vivo and impaired metastatic development. We established that the proline at 841 of ROR1 was required for it to recruit cortactin and ARHGEF1, activate RhoA, and enhance breast-cancer-cell migration in vitro or development of metastases in vivo. Collectively, these studies demonstrate that the interaction of ROR1 with cortactin plays an important role in breast-cancer-cell migration and metastasis.
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Affiliation(s)
- Md Kamrul Hasan
- Moores Cancer Center, University of California San Diego, La Jolla, CA USA
| | - George F. Widhopf
- Moores Cancer Center, University of California San Diego, La Jolla, CA USA
| | - Suping Zhang
- Moores Cancer Center, University of California San Diego, La Jolla, CA USA
- Guangdong Key Laboratory for Genome Stability & Disease Prevention, Department of Pharmacology, International Cancer Center, Shenzhen University Health Science Center, Shenzhen, 518060 Guangdong China
| | - Sharon M. Lam
- Moores Cancer Center, University of California San Diego, La Jolla, CA USA
| | - Zhouxin Shen
- Section of Cell and Developmental Biology, University of California San Diego, La Jolla, CA USA
| | - Steven P. Briggs
- Section of Cell and Developmental Biology, University of California San Diego, La Jolla, CA USA
| | - Barbara A. Parker
- Moores Cancer Center, University of California San Diego, La Jolla, CA USA
| | - Thomas J. Kipps
- Moores Cancer Center, University of California San Diego, La Jolla, CA USA
- Guangdong Key Laboratory for Genome Stability & Disease Prevention, Department of Pharmacology, International Cancer Center, Shenzhen University Health Science Center, Shenzhen, 518060 Guangdong China
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16
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Ren Y, He Y, Brown S, Zbornik E, Mlodzianoski MJ, Ma D, Huang F, Mattoo S, Suter DM. A single tyrosine phosphorylation site in cortactin is important for filopodia formation in neuronal growth cones. Mol Biol Cell 2019; 30:1817-1833. [PMID: 31116646 PMCID: PMC6727743 DOI: 10.1091/mbc.e18-04-0202] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Cortactin is a Src tyrosine phosphorylation substrate that regulates multiple actin-related cellular processes. While frequently studied in nonneuronal cells, the functions of cortactin in neuronal growth cones are not well understood. We recently reported that cortactin mediates the effects of Src tyrosine kinase in regulating actin organization and dynamics in both lamellipodia and filopodia of Aplysia growth cones. Here, we identified a single cortactin tyrosine phosphorylation site (Y499) to be important for the formation of filopodia. Overexpression of a 499F phospho-deficient cortactin mutant decreased filopodia length and density, whereas overexpression of a 499E phospho-mimetic mutant increased filopodia length. Using an antibody against cortactin pY499, we showed that tyrosine-phosphorylated cortactin is enriched along the leading edge. The leading edge localization of phosphorylated cortactin is Src2-dependent, F-actin-independent, and important for filopodia formation. In vitro kinase assays revealed that Src2 phosphorylates cortactin at Y499, although Y505 is the preferred site in vitro. Finally, we provide evidence that Arp2/3 complex acts downstream of phosphorylated cortactin to regulate density but not length of filopodia. In conclusion, we have characterized a tyrosine phosphorylation site in Aplysia cortactin that plays a major role in the Src/cortactin/Arp2/3 signaling pathway controlling filopodia formation.
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Affiliation(s)
- Yuan Ren
- Department of Biological Sciences, Purdue University, West Lafayette, IN 47907
| | - Yingpei He
- Department of Biological Sciences, Purdue University, West Lafayette, IN 47907
| | - Sherlene Brown
- Department of Biochemistry, Purdue University, West Lafayette, IN 47907
| | - Erica Zbornik
- Department of Biological Sciences, Purdue University, West Lafayette, IN 47907
| | - Michael J Mlodzianoski
- Department of Weldon School of Biomedical Engineering, Purdue Institutes of Inflammation, Immunology and Infectious Disease, Purdue University, West Lafayette, IN 47907
| | - Donghan Ma
- Department of Weldon School of Biomedical Engineering, Purdue Institutes of Inflammation, Immunology and Infectious Disease, Purdue University, West Lafayette, IN 47907
| | - Fang Huang
- Department of Weldon School of Biomedical Engineering, Purdue Institutes of Inflammation, Immunology and Infectious Disease, Purdue University, West Lafayette, IN 47907.,Department of Inflammation, Immunology and Infectious Disease, Purdue University, West Lafayette, IN 47907.,Department of Integrative Neuroscience, Purdue University, West Lafayette, IN 47907
| | - Seema Mattoo
- Department of Biological Sciences, Purdue University, West Lafayette, IN 47907.,Department of Inflammation, Immunology and Infectious Disease, Purdue University, West Lafayette, IN 47907
| | - Daniel M Suter
- Department of Biological Sciences, Purdue University, West Lafayette, IN 47907.,Department of Integrative Neuroscience, Purdue University, West Lafayette, IN 47907.,Department of Bindley Bioscience Center, Purdue University, West Lafayette, IN 47907.,Department of Birck Nanotechnology Center, Purdue University, West Lafayette, IN 47907
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17
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Roma MG, Barosso IR, Miszczuk GS, Crocenzi FA, Pozzi EJS. Dynamic Localization of Hepatocellular Transporters: Role in Biliary Excretion and Impairment in Cholestasis. Curr Med Chem 2019; 26:1113-1154. [DOI: 10.2174/0929867325666171205153204] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2017] [Revised: 09/06/2017] [Accepted: 09/07/2017] [Indexed: 12/25/2022]
Abstract
Bile flow generation is driven by the vectorial transfer of osmotically active compounds from sinusoidal blood into a confined space, the bile canaliculus. Hence, localization of hepatocellular transporters relevant to bile formation is crucial for bile secretion. Hepatocellular transporters are localized either in the plasma membrane or in recycling endosomes, from where they can be relocated to the plasma membrane on demand, or endocytosed when the demand decreases. The balance between endocytic internalization/ exocytic targeting to/from this recycling compartment is therefore the main determinant of the hepatic capability to generate bile, and to dispose endo- and xenobiotics. Furthermore, the exacerbated endocytic internalization is a common pathomechanisms in both experimental and human cholestasis; this results in bile secretory failure and, eventually, posttranslational transporter downregulation by increased degradation. This review summarizes the proposed structural mechanisms accounting for this pathological condition (e.g., alteration of function, localization or expression of F-actin or F-actin/transporter cross-linking proteins, and switch to membrane microdomains where they can be readily endocytosed), and the mediators implicated (e.g., triggering of “cholestatic” signaling transduction pathways). Lastly, we discussed the efficacy to counteract the cholestatic failure induced by transporter internalization of a number of therapeutic experimental approaches based upon the use of compounds that trigger exocytic targetting of canalicular transporters (e.g., cAMP, tauroursodeoxycholate). This therapeutics may complement treatments aimed to transcriptionally improve transporter expression, by affording proper localization and membrane stability to the de novo synthesized transporters.
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Affiliation(s)
- Marcelo G. Roma
- Instituto de Fisiologia Experimental (IFISE) - Facultad de Ciencias Bioquimicas y Farmaceuticas (CONICET - U.N.R.), S2002LRL, Rosario, Argentina
| | - Ismael R. Barosso
- Instituto de Fisiologia Experimental (IFISE) - Facultad de Ciencias Bioquimicas y Farmaceuticas (CONICET - U.N.R.), S2002LRL, Rosario, Argentina
| | - Gisel S. Miszczuk
- Instituto de Fisiologia Experimental (IFISE) - Facultad de Ciencias Bioquimicas y Farmaceuticas (CONICET - U.N.R.), S2002LRL, Rosario, Argentina
| | - Fernando A. Crocenzi
- Instituto de Fisiologia Experimental (IFISE) - Facultad de Ciencias Bioquimicas y Farmaceuticas (CONICET - U.N.R.), S2002LRL, Rosario, Argentina
| | - Enrique J. Sánchez Pozzi
- Instituto de Fisiologia Experimental (IFISE) - Facultad de Ciencias Bioquimicas y Farmaceuticas (CONICET - U.N.R.), S2002LRL, Rosario, Argentina
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18
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Ramos-García P, González-Moles MÁ, González-Ruiz L, Ayén Á, Ruiz-Ávila I, Navarro-Triviño FJ, Gil-Montoya JA. An update of knowledge on cortactin as a metastatic driver and potential therapeutic target in oral squamous cell carcinoma. Oral Dis 2018; 25:949-971. [PMID: 29878474 DOI: 10.1111/odi.12913] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2018] [Revised: 05/15/2018] [Accepted: 06/05/2018] [Indexed: 12/12/2022]
Abstract
Cortactin is a protein encoded by the CTTN gene, localized on chromosome band 11q13. As a result of the amplification of this band, an important event in oral carcinogenesis, CTTN is also usually amplified, promoting the frequent overexpression of cortactin. Cortactin enhances cell migration in oral cancer, playing a key role in the regulation of filamentous actin and of protrusive structures (invadopodia and lamellipodia) on the cell membrane that are necessary for the acquisition of a migratory phenotype. We also analyze a series of emerging functions that cortactin may exert in oral cancer (cell proliferation, angiogenesis, regulation of exosomes, and interactions with the tumor microenvironment). We review its molecular structure, its most important interactions (with Src, Arp2/3 complex, and SH3-binding partners), the regulation of its functions, and its specific oncogenic role in oral cancer. We explore the mechanisms of its overexpression in cancer, mainly related to genetic amplification. We analyze the prognostic implications of the oncogenic activation of cortactin in potentially malignant disorders and in head and neck cancer, where it appears to be relevant in the development of lymph node metastasis. Finally, we discuss its usefulness as a therapeutic target and suggest future research lines.
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Affiliation(s)
| | - Miguel Ángel González-Moles
- School of Dentistry, University of Granada, Granada, Spain.,Instituto de Investigación Biosanitaria, Granada, Spain
| | - Lucía González-Ruiz
- Servicio de Dermatología, Hospital General Universitario de Ciudad Real, Ciudad Real, Spain
| | - Ángela Ayén
- School of Medicine, University of Granada, Granada, Spain
| | - Isabel Ruiz-Ávila
- Instituto de Investigación Biosanitaria, Granada, Spain.,Servicio de Anatomía Patológica, Complejo Hospitalario Universitario de Granada, Granada, Spain
| | | | - José Antonio Gil-Montoya
- School of Dentistry, University of Granada, Granada, Spain.,Instituto de Investigación Biosanitaria, Granada, Spain
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19
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Yu Y, Suryo Rahmanto Y, Lee MH, Wu PH, Phillip JM, Huang CH, Vitolo MI, Gaillard S, Martin SS, Wirtz D, Shih IM, Wang TL. Inhibition of ovarian tumor cell invasiveness by targeting SYK in the tyrosine kinase signaling pathway. Oncogene 2018; 37:3778-3789. [PMID: 29643476 PMCID: PMC6043408 DOI: 10.1038/s41388-018-0241-0] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2017] [Revised: 01/27/2018] [Accepted: 03/03/2018] [Indexed: 02/02/2023]
Abstract
Cell motility and invasiveness are prerequisites for dissemination, and largely account for cancer mortality. We have identified an actionable kinase, spleen tyrosine kinase (SYK), which is keenly tightly associated with tumor progression in ovarian cancer. Here, we report that active recombinant SYK directly phosphorylates cortactin and cofilin, which are critically involved in assembly and dynamics of actin filament through phosphorylation signaling. Enhancing SYK activity by inducing expression of a constitutively active SYK mutant, SYK130E, increased growth factor-stimulated migration and invasion of ovarian cancer cells, which was abrogated by cortactin knockdown. Similarly, SYK inhibitors significantly decreased invasion of ovarian cancer cells across basement membrane in real-time transwell assays and in 3D tumor spheroid models. SYK inactivation by targeted gene knockout or by small molecule inhibition reduced actin polymerization. Collectively, this study reported a new mechanism by which SYK signaling regulates ovarian cancer cell motility and invasiveness, and suggest a target-based strategy to prevent or suppress the advancement of ovarian malignancies.
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Affiliation(s)
- Yu Yu
- Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins Medical Institutions, Baltimore, MD, 21205, USA
- Department of Pathology, Johns Hopkins Medical Institutions, Baltimore, MD, 21287, USA
| | - Yohan Suryo Rahmanto
- Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins Medical Institutions, Baltimore, MD, 21205, USA
- Department of Pathology, Johns Hopkins Medical Institutions, Baltimore, MD, 21287, USA
| | - Meng-Horng Lee
- Department of Chemical and Biomolecular Engineering, Physical Sciences-Oncology Center, and Institute for NanoBioTechology, Johns Hopkins University, Baltimore, MD, 21218, USA
| | - Pei-Hsun Wu
- Department of Chemical and Biomolecular Engineering, Physical Sciences-Oncology Center, and Institute for NanoBioTechology, Johns Hopkins University, Baltimore, MD, 21218, USA
| | - Jude M Phillip
- Department of Chemical and Biomolecular Engineering, Physical Sciences-Oncology Center, and Institute for NanoBioTechology, Johns Hopkins University, Baltimore, MD, 21218, USA
| | - Chuan-Hsiang Huang
- Department of Pathology, Johns Hopkins Medical Institutions, Baltimore, MD, 21287, USA
| | - Michele I Vitolo
- Department of Physiology, University of Maryland School of Medicine, Baltimore, MD, USA
- Marlene and Stewart Greenebaum National Cancer Institute Cancer Center, University of Maryland School of Medicine, Baltimore, MD, 21201, USA
| | - Stephanie Gaillard
- Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins Medical Institutions, Baltimore, MD, 21205, USA
- Department of Gynecology and Obstetrics, Johns Hopkins Medical Institutions, Baltimore, MD, 21287, USA
| | - Stuart S Martin
- Department of Physiology, University of Maryland School of Medicine, Baltimore, MD, USA
- Marlene and Stewart Greenebaum National Cancer Institute Cancer Center, University of Maryland School of Medicine, Baltimore, MD, 21201, USA
| | - Denis Wirtz
- Department of Chemical and Biomolecular Engineering, Physical Sciences-Oncology Center, and Institute for NanoBioTechology, Johns Hopkins University, Baltimore, MD, 21218, USA
| | - Ie-Ming Shih
- Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins Medical Institutions, Baltimore, MD, 21205, USA.
- Department of Pathology, Johns Hopkins Medical Institutions, Baltimore, MD, 21287, USA.
- Department of Gynecology and Obstetrics, Johns Hopkins Medical Institutions, Baltimore, MD, 21287, USA.
| | - Tian-Li Wang
- Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins Medical Institutions, Baltimore, MD, 21205, USA.
- Department of Pathology, Johns Hopkins Medical Institutions, Baltimore, MD, 21287, USA.
- Department of Gynecology and Obstetrics, Johns Hopkins Medical Institutions, Baltimore, MD, 21287, USA.
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20
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Lima AM, Wegner SV, Martins Cavaco AC, Estevão-Costa MI, Sanz-Soler R, Niland S, Nosov G, Klingauf J, Spatz JP, Eble JA. The spatial molecular pattern of integrin recognition sites and their immobilization to colloidal nanobeads determine α2β1 integrin-dependent platelet activation. Biomaterials 2018; 167:107-120. [PMID: 29567387 DOI: 10.1016/j.biomaterials.2018.03.028] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2017] [Revised: 03/02/2018] [Accepted: 03/14/2018] [Indexed: 11/15/2022]
Abstract
Collagen, a strong platelet activator, is recognized by integrin α2β1 and GPVI. It induces aggregation, if added to suspended platelets, or platelet adhesion if immobilized to a surface. The recombinant non-prolylhydroxylated mini-collagen FC3 triple helix containing one α2β1 integrin binding site is a tool to specifically study how α2β1 integrin activates platelet. Whereas soluble FC3 monomers antagonistically block collagen-induced platelet activation, immobilization of several FC3 molecules to an interface or to colloidal nanobeads determines the agonistic action of FC3. Nanopatterning of FC3 reveals that intermolecular distances below 64 nm between α2β1 integrin binding sites trigger signaling through dot-like clusters of α2β1 integrin, which are visible in high resolution microscopy with dSTORM. Upon signaling, these integrin clusters increase in numbers per platelet, but retain their individual size. Immobilization of several FC3 to 100 nm-sized nanobeads identifies α2β1 integrin-triggered signaling in platelets to occur at a twentyfold slower rate than collagen, which activates platelet in a fast integrative signaling via different platelet receptors. As compared to collagen stimulation, FC3-nanobead-triggered signaling cause a significant stronger activation of the protein kinase BTK, a weak and dispensable activation of PDK1, as well as a distinct phosphorylation pattern of PDB/Akt.
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Affiliation(s)
- Augusto Martins Lima
- Institute of Physiological Chemistry and Pathobiochemistry, University of Muenster, Waldeyerstr. 15, 48149 Muenster, Germany
| | - Seraphine V Wegner
- Department of Biophysical Chemistry, University of Heidelberg, Heidelberg, Germany, and Max Plank-Institute for Polymer Research, Mainz, Germany
| | - Ana C Martins Cavaco
- Institute of Physiological Chemistry and Pathobiochemistry, University of Muenster, Waldeyerstr. 15, 48149 Muenster, Germany
| | - Maria Inacia Estevão-Costa
- Institute of Physiological Chemistry and Pathobiochemistry, University of Muenster, Waldeyerstr. 15, 48149 Muenster, Germany
| | - Raquel Sanz-Soler
- Institute of Physiological Chemistry and Pathobiochemistry, University of Muenster, Waldeyerstr. 15, 48149 Muenster, Germany
| | - Stephan Niland
- Institute of Physiological Chemistry and Pathobiochemistry, University of Muenster, Waldeyerstr. 15, 48149 Muenster, Germany
| | - Georgii Nosov
- Institute for Physical Medicine and Biophysics, University of Muenster, Muenster, Germany
| | - Jürgen Klingauf
- Institute for Physical Medicine and Biophysics, University of Muenster, Muenster, Germany
| | - Joachim P Spatz
- Department of Biophysical Chemistry, University of Heidelberg, Heidelberg, Germany, and Max Planck-Institute for Medical Research, Department of Cellular Biophysics, Heidelberg, Germany
| | - Johannes A Eble
- Institute of Physiological Chemistry and Pathobiochemistry, University of Muenster, Waldeyerstr. 15, 48149 Muenster, Germany.
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21
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Parkinson GT, Chamberlain SEL, Jaafari N, Turvey M, Mellor JR, Hanley JG. Cortactin regulates endo-lysosomal sorting of AMPARs via direct interaction with GluA2 subunit. Sci Rep 2018. [PMID: 29515177 PMCID: PMC5841360 DOI: 10.1038/s41598-018-22542-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
AMPA receptor (AMPAR) trafficking is a key determinant of synaptic strength and synaptic plasticity. Under basal conditions, constitutive trafficking maintains surface AMPARs by internalization into the endosomal system, where the majority are sorted and targeted for recycling back to the plasma membrane. NMDA receptor (NMDAR)-dependent Long-Term Depression (LTD) is characterised by a reduction in synaptic strength, and involves endosomal sorting of AMPARs away from recycling pathways to lysosomes. The mechanisms that determine whether AMPARs are trafficked to lysosomes or to recycling endosomes, especially in response to NMDAR stimulation, are unclear. Here, we define a role for the actin-regulatory protein cortactin as a mediator of AMPAR endosomal sorting by direct interaction with the GluA2 subunit. Disrupting GluA2-cortactin binding in neurons causes the targeting of GluA2/A3-containing receptors to lysosomes and their consequent degradation, resulting in a loss of surface and synaptic GluA2 under basal conditions and an occlusion of subsequent LTD expression. Furthermore, we show that NMDAR stimulation causes a dissociation of endogenous cortactin from GluA2 via tyrosine phosphorylation of cortactin. These results demonstrate that cortactin maintains GluA2/A3 levels by directing receptors away from lysosomes, and that disrupting GluA2-cortactin interactions to target GluA2/A3 to lysosomes is an essential component of LTD expression.
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Affiliation(s)
- Gabrielle T Parkinson
- Centre for Synaptic Plasticity and School of Biochemistry, Biomedical Sciences Building, University of Bristol, University Walk, Bristol, BS8, 1TD, UK
| | - Sophie E L Chamberlain
- Centre for Synaptic Plasticity and School of Physiology, Pharmacology & Neuroscience, Biomedical Sciences Building, University of Bristol, University Walk, Bristol, BS8, 1TD, UK
| | - Nadia Jaafari
- Centre for Synaptic Plasticity and School of Biochemistry, Biomedical Sciences Building, University of Bristol, University Walk, Bristol, BS8, 1TD, UK
| | - Matthew Turvey
- Centre for Synaptic Plasticity and School of Biochemistry, Biomedical Sciences Building, University of Bristol, University Walk, Bristol, BS8, 1TD, UK
| | - Jack R Mellor
- Centre for Synaptic Plasticity and School of Physiology, Pharmacology & Neuroscience, Biomedical Sciences Building, University of Bristol, University Walk, Bristol, BS8, 1TD, UK
| | - Jonathan G Hanley
- Centre for Synaptic Plasticity and School of Biochemistry, Biomedical Sciences Building, University of Bristol, University Walk, Bristol, BS8, 1TD, UK.
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22
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Mi R, Sun Y, Li J, Ma S, Wen Z, Li X, Meng N, Li Y, Du X, Li S. Immune-related proteins detected through iTRAQ-based proteomics analysis of intestines from Apostichopus japonicus in response to tussah immunoreactive substances. FISH & SHELLFISH IMMUNOLOGY 2018; 74:436-443. [PMID: 29317309 DOI: 10.1016/j.fsi.2018.01.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2017] [Revised: 11/10/2017] [Accepted: 01/05/2018] [Indexed: 06/07/2023]
Abstract
Apostichopus japonicus is a species of sea cucumber that is extensively bred as a marine delicacy because of its high nutritive and medicinal value. Immunostimulants are usually used to enhance the immunity of sea cucumber against diseases, but the physiological function of immunostimulants is poorly understood. In this study, we fed A. japonicus individuals with a diet supplemented with different concentrations of tussah immunoreactive substances (TIS), and then subjected their intestines to iTRAQ-based proteomic analysis. A total of 51 differentially expressed proteins were detected in response to TIS, 13 proteins were upregulated, while 38 proteins were reduced. These proteins are involved in phagocytosis, tissue protection, cell apoptosis and energy metabolism. Among these 51 proteins, 7 proteins (GLO2, ACOX, CTTN, MARK, FADD, CSTA and CASP6) related to immunity with functional annotation in sea cucumber were further analyzed. In addition, the upregulated expression of 4 immune-related proteins (GLO2, ACOX, CTTN and MARK) was validated by qRT-PCR. The findings of this study gave further insight into the mechanism by which TIS might enhance the immunity of A. japonicus.
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Affiliation(s)
- Rui Mi
- Dalian Biotechnology Research Institute, Liaoning Academy of Agricultural Sciences, Dalian 116024, PR China
| | - Yongxin Sun
- Dalian Biotechnology Research Institute, Liaoning Academy of Agricultural Sciences, Dalian 116024, PR China.
| | - Jianguang Li
- Shandong Sci-Health Biotechnology Co., Ltd, Yantai 265500, PR China
| | - Shuhui Ma
- Dalian Biotechnology Research Institute, Liaoning Academy of Agricultural Sciences, Dalian 116024, PR China
| | - Zhixin Wen
- Dalian Biotechnology Research Institute, Liaoning Academy of Agricultural Sciences, Dalian 116024, PR China
| | - Xuejun Li
- Dalian Biotechnology Research Institute, Liaoning Academy of Agricultural Sciences, Dalian 116024, PR China
| | - Nan Meng
- Dalian Biotechnology Research Institute, Liaoning Academy of Agricultural Sciences, Dalian 116024, PR China
| | - Yajie Li
- Dalian Biotechnology Research Institute, Liaoning Academy of Agricultural Sciences, Dalian 116024, PR China
| | - Xingfan Du
- Dalian Biotechnology Research Institute, Liaoning Academy of Agricultural Sciences, Dalian 116024, PR China
| | - Shuying Li
- Dalian Biotechnology Research Institute, Liaoning Academy of Agricultural Sciences, Dalian 116024, PR China
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23
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Cortactin: Cell Functions of A Multifaceted Actin-Binding Protein. Trends Cell Biol 2018; 28:79-98. [DOI: 10.1016/j.tcb.2017.10.009] [Citation(s) in RCA: 123] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2017] [Revised: 10/26/2017] [Accepted: 10/27/2017] [Indexed: 12/30/2022]
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24
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Radeva MY, Waschke J. Mind the gap: mechanisms regulating the endothelial barrier. Acta Physiol (Oxf) 2018; 222. [PMID: 28231640 DOI: 10.1111/apha.12860] [Citation(s) in RCA: 167] [Impact Index Per Article: 27.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2016] [Revised: 11/21/2016] [Accepted: 02/16/2017] [Indexed: 12/11/2022]
Abstract
The endothelial barrier consists of intercellular contacts localized in the cleft between endothelial cells, which is covered by the glycocalyx in a sievelike manner. Both types of barrier-forming junctions, i.e. the adherens junction (AJ) serving mechanical anchorage and mechanotransduction and the tight junction (TJ) sealing the intercellular space to limit paracellular permeability, are tethered to the actin cytoskeleton. Under resting conditions, the endothelium thereby builds a selective layer controlling the exchange of fluid and solutes with the surrounding tissue. However, in the situation of an inflammatory response such as in anaphylaxis or sepsis intercellular contacts disintegrate in post-capillary venules leading to intercellular gap formation. The resulting oedema can cause shock and multi-organ failure. Therefore, maintenance as well as coordinated opening and closure of interendothelial junctions is tightly regulated. The two principle underlying mechanisms comprise spatiotemporal activity control of the small GTPases Rac1 and RhoA and the balance of the phosphorylation state of AJ proteins. In the resting state, junctional Rac1 and RhoA activity is enhanced by junctional components, actin-binding proteins, cAMP signalling and extracellular cues such as sphingosine-1-phosphate (S1P) and angiopoietin-1 (Ang-1). In addition, phosphorylation of AJ components is prevented by junction-associated phosphatases including vascular endothelial protein tyrosine phosphatase (VE-PTP). In contrast, inflammatory mediators inhibiting cAMP/Rac1 signalling cause strong activation of RhoA and induce AJ phosphorylation finally leading to endocytosis and cleavage of VE-cadherin. This results in dissolution of TJs the outcome of which is endothelial barrier breakdown.
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Affiliation(s)
- M. Y. Radeva
- Institute of Anatomy and Cell Biology; Ludwig-Maximilians-Universität München; Munich Germany
| | - J. Waschke
- Institute of Anatomy and Cell Biology; Ludwig-Maximilians-Universität München; Munich Germany
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25
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Farhan MA, Azad AK, Touret N, Murray AG. FGD5 Regulates VEGF Receptor-2 Coupling to PI3 Kinase and Receptor Recycling. Arterioscler Thromb Vasc Biol 2017; 37:2301-2310. [PMID: 29051140 DOI: 10.1161/atvbaha.117.309978] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2016] [Accepted: 10/10/2017] [Indexed: 11/16/2022]
Abstract
OBJECTIVE VEGF (vascular endothelial growth factor-A) signaling to the endothelial cell (EC) through VEGFR2 (VEGF receptor-2) is the principal cue driving new blood vessel formation. FGD5 (faciogenital dysplasia-5)-a Rho-family guanine nucleotide exchange factor-is selectively expressed in EC. Deficiency of FGD5 is embryonically lethal in mice and perturbs angiogenesis and VEGF signal transduction. However, the mechanism of FGD5 regulation of VEGF signaling is poorly understood. APPROACH AND RESULTS Angiogenic sprouting and EC cytoskeletal remodeling were evaluated in a 3-dimensional in vitro model. We examined the subcellular localization of FGD5 and VEGFR2 in EC by immunofluorescent staining and studied the association by immunoprecipitation. FGD5 deficiency reduced the number of angiogenic sprouts and tip cell filopodia by ≈80% and ≈70%, respectively. These defects were accompanied by downregulation of the expression of tip cell-specific markers. FGD5 inactivation led to a decrease in EC migration and early protrusion (lamellipodia) formation. In resting and VEGF-stimulated EC, FGD5 forms a complex with VEGFR2 and was enriched at the leading edge of the cell and among endosomes. FGD5 loss reduced mTORC2 (mammalian target of rapamycin complex-2)/Akt-dependent cortactin activation downstream of VEGFR2 but did not alter VEGFR2 plasma membrane expression, Y1175 phosphorylation, or endocytosis. However, FGD5 loss decreased endosomal VEGFR2 coupling to phosphoinositide-3 kinase and diverted VEGFR2 to lysosomal degradation. CONCLUSIONS FGD5 regulates VEGFR2 retention in recycling endosomes and coupling to PI3 (phosphoinositide-3) kinase/mTORC2-dependent cytoskeletal remodeling.
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Affiliation(s)
- Maikel A Farhan
- From the Department of Pediatrics (M.A.F.), Department of Medicine (A.K.A., A.G.M.), and Department of Biochemistry (N.T.), University of Alberta, Edmonton, Canada
| | - Abul K Azad
- From the Department of Pediatrics (M.A.F.), Department of Medicine (A.K.A., A.G.M.), and Department of Biochemistry (N.T.), University of Alberta, Edmonton, Canada
| | - Nicolas Touret
- From the Department of Pediatrics (M.A.F.), Department of Medicine (A.K.A., A.G.M.), and Department of Biochemistry (N.T.), University of Alberta, Edmonton, Canada
| | - Allan G Murray
- From the Department of Pediatrics (M.A.F.), Department of Medicine (A.K.A., A.G.M.), and Department of Biochemistry (N.T.), University of Alberta, Edmonton, Canada.
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26
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Tiwari R, Sahu I, Soni BL, Sathe GJ, Datta KK, Thapa P, Sinha S, Vadivel CK, Dhaka B, Gowda H, Vaidya MM. Quantitative phosphoproteomic analysis reveals system-wide signaling pathways regulated by site-specific phosphorylation of Keratin-8 in skin squamous cell carcinoma derived cell line. Proteomics 2017; 17. [PMID: 28176443 DOI: 10.1002/pmic.201600254] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2016] [Revised: 01/14/2017] [Accepted: 02/01/2017] [Indexed: 12/20/2022]
Abstract
Keratin 8/18, a simple epithelia specific keratin pair, is often aberrantly expressed in squamous cell carcinomas (SCC) where its expression is correlated with increased invasion and poor prognosis. Majority of Keratin 8 (K8) functions are governed by its phosphorylation at Serine73 (head-domain) and Serine431 (tail-domain) residues. Although, deregulation of K8 phosphorylation is associated with progression of different carcinomas, its role in skin-SCC and the underlying mechanism is obscure. In this direction, we performed tandem mass tag-based quantitative phosphoproteomics by expressing K8 wild type, phosphodead, and phosphomimetic mutants in K8-deficient A431 cells. Further analysis of our phosphoproteomics data showed a significant proportion of total phosphoproteome associated with migratory, proliferative, and invasive potential of these cells to be differentially phosphorylated. Differential phosphorylation of CDK1T14,Y15 , EIF4EBP1T46,T50 , EIF4BS422 , AKT1S1T246,S247 , CTTN1T401,S405,Y421 , and CAP1S307/309 in K8-S73A/D mutant and CTTN1T401,S405,Y421 , BUB1BS1043 , and CARHSP1S30,S32 in K8-S431A/D mutants as well as some anonymous phosphosites including MYCS176 , ZYXS344 , and PNNS692 could be potential candidates associated with K8 phosphorylation mediated tumorigenicity. Biochemical validation followed by phenotypic analysis further confirmed our quantitative phosphoproteomics data. In conclusion, our study provides the first global picture of K8 site-specific phosphorylation function in neoplastic progression of A431 cells and suggests various potential starting points for further mechanistic studies.
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Affiliation(s)
- Richa Tiwari
- Advanced Centre for Treatment, Research and Education in Cancer, Navi Mumbai, India.,Homi Bhabha National Institute, Training School Complex, Anushakti Nagar, Mumbai, India
| | - Indrajit Sahu
- Advanced Centre for Treatment, Research and Education in Cancer, Navi Mumbai, India.,Homi Bhabha National Institute, Training School Complex, Anushakti Nagar, Mumbai, India.,Department of Biology, Technion-Israel Institute of Technology, Haifa, Israel
| | - Bihari Lal Soni
- Advanced Centre for Treatment, Research and Education in Cancer, Navi Mumbai, India.,Homi Bhabha National Institute, Training School Complex, Anushakti Nagar, Mumbai, India.,Medical College of Wisconsin, Milwaukee, WI, USA
| | | | | | - Pankaj Thapa
- Advanced Centre for Treatment, Research and Education in Cancer, Navi Mumbai, India.,Homi Bhabha National Institute, Training School Complex, Anushakti Nagar, Mumbai, India
| | - Shruti Sinha
- Advanced Centre for Treatment, Research and Education in Cancer, Navi Mumbai, India
| | | | | | | | - Milind M Vaidya
- Advanced Centre for Treatment, Research and Education in Cancer, Navi Mumbai, India.,Homi Bhabha National Institute, Training School Complex, Anushakti Nagar, Mumbai, India
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27
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Yin M, Ma W, An L. Cortactin in cancer cell migration and invasion. Oncotarget 2017; 8:88232-88243. [PMID: 29152154 PMCID: PMC5675706 DOI: 10.18632/oncotarget.21088] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2016] [Accepted: 08/29/2017] [Indexed: 12/20/2022] Open
Abstract
Cortactin, a substrate of sarcoma (Src) kinases, is an actin-binding protein that is involved in cytoskeletal regulation, and is frequently overexpressed in cancer cells. Binding to the actin related protein 2/3 (Arp2/3) complex stimulates cortactin activity, which promotes F-actin nucleation and assembly. Cortactin promotes cancer cell migration and invasion, and plays a pivotal role in invadopodia formation and extra cellular matrix degradation. Overexpression of cortactin, by amplification of the chromosomal band 11q13, increases tumor aggressiveness. In this review, we report on the current knowledge and potential mechanisms of action of cortactin as a critical mediator of cancer cell migration and invasion.
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Affiliation(s)
- Miao Yin
- Shandong Provincial Key Laboratory of Animal Resistance Biology, College of Life Sciences, Shandong Normal University, Jinan 250014, China
| | - Wenqing Ma
- Shandong Provincial Key Laboratory of Animal Resistance Biology, College of Life Sciences, Shandong Normal University, Jinan 250014, China
| | - Liguo An
- Shandong Provincial Key Laboratory of Animal Resistance Biology, College of Life Sciences, Shandong Normal University, Jinan 250014, China
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28
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González-Jamett AM, Guerra MJ, Olivares MJ, Haro-Acuña V, Baéz-Matus X, Vásquez-Navarrete J, Momboisse F, Martinez-Quiles N, Cárdenas AM. The F-Actin Binding Protein Cortactin Regulates the Dynamics of the Exocytotic Fusion Pore through its SH3 Domain. Front Cell Neurosci 2017; 11:130. [PMID: 28522963 PMCID: PMC5415606 DOI: 10.3389/fncel.2017.00130] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2017] [Accepted: 04/18/2017] [Indexed: 11/20/2022] Open
Abstract
Upon cell stimulation, the network of cortical actin filaments is rearranged to facilitate the neurosecretory process. This actin rearrangement includes both disruption of the preexisting actin network and de novo actin polymerization. However, the mechanism by which a Ca2+ signal elicits the formation of new actin filaments remains uncertain. Cortactin, an actin-binding protein that promotes actin polymerization in synergy with the nucleation promoting factor N-WASP, could play a key role in this mechanism. We addressed this hypothesis by analyzing de novo actin polymerization and exocytosis in bovine adrenal chromaffin cells expressing different cortactin or N-WASP domains, or cortactin mutants that fail to interact with proline-rich domain (PRD)-containing proteins, including N-WASP, or to be phosphorylated by Ca2+-dependent kinases, such as ERK1/2 and Src. Our results show that the activation of nicotinic receptors in chromaffin cells promotes cortactin translocation to the cell cortex, where it colocalizes with actin filaments. We further found that, in association with PRD-containing proteins, cortactin contributes to the Ca2+-dependent formation of F-actin, and regulates fusion pore dynamics and the number of exocytotic events induced by activation of nicotinic receptors. However, whereas the actions of cortactin on the fusion pore dynamics seems to depend on the availability of monomeric actin and its phosphorylation by ERK1/2 and Src kinases, cortactin regulates the extent of exocytosis by a mechanism independent of actin polymerization. Together our findings point out a role for cortactin as a critical modulator of actin filament formation and exocytosis in neuroendocrine cells.
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Affiliation(s)
- Arlek M González-Jamett
- Centro Interdisciplinario de Neurociencia de Valparaíso, Facultad de Ciencias, Universidad de ValparaísoValparaíso, Chile
| | - María J Guerra
- Centro Interdisciplinario de Neurociencia de Valparaíso, Facultad de Ciencias, Universidad de ValparaísoValparaíso, Chile
| | - María J Olivares
- Centro Interdisciplinario de Neurociencia de Valparaíso, Facultad de Ciencias, Universidad de ValparaísoValparaíso, Chile
| | - Valentina Haro-Acuña
- Centro Interdisciplinario de Neurociencia de Valparaíso, Facultad de Ciencias, Universidad de ValparaísoValparaíso, Chile
| | - Ximena Baéz-Matus
- Centro Interdisciplinario de Neurociencia de Valparaíso, Facultad de Ciencias, Universidad de ValparaísoValparaíso, Chile
| | - Jacqueline Vásquez-Navarrete
- Centro Interdisciplinario de Neurociencia de Valparaíso, Facultad de Ciencias, Universidad de ValparaísoValparaíso, Chile
| | - Fanny Momboisse
- Centro Interdisciplinario de Neurociencia de Valparaíso, Facultad de Ciencias, Universidad de ValparaísoValparaíso, Chile
| | - Narcisa Martinez-Quiles
- Departamento de Microbiología (Inmunología), Facultad de Medicina, Universidad Complutense de MadridMadrid, Spain
| | - Ana M Cárdenas
- Centro Interdisciplinario de Neurociencia de Valparaíso, Facultad de Ciencias, Universidad de ValparaísoValparaíso, Chile
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29
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Martini V, Gattazzo C, Frezzato F, Trimarco V, Pizzi M, Chiodin G, Severin F, Scomazzon E, Guzzardo V, Saraggi D, Raggi F, Martinello L, Facco M, Visentin A, Piazza F, Brunati AM, Semenzato G, Trentin L. Cortactin, a Lyn substrate, is a checkpoint molecule at the intersection of BCR and CXCR4 signalling pathway in chronic lymphocytic leukaemia cells. Br J Haematol 2017; 178:81-93. [PMID: 28419476 DOI: 10.1111/bjh.14642] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2016] [Accepted: 12/31/2016] [Indexed: 12/17/2022]
Abstract
Cortactin (CTTN) is a substrate of the Src kinase Lyn that is known to play an actin cytoskeletal regulatory role involved in cell migration and cancer progression following its phosphorylation at Y421. We recently demonstrated that Cortactin is overexpressed in patients with chronic lymphocytic leukaemia (CLL). This work was aimed at defining the functional role of Cortactin in these patients. We found that Cortactin is variably expressed in CLL patients both in the peripheral blood and lymph nodes and that its expression correlates with the release of matrix metalloproteinase 9 (MMP-9) and the motility of neoplastic cells. Cortactin knockdown, by siRNA, induced a reduction in MMP-9 release as well as a decrease of migration capability of leukaemic B cells in vitro, also after chemotactic stimulus. Furthermore, Cortactin phosphorylation was lowered by the Src kinase-inhibitor PP2 with a consequent decrease of MMP-9 release in culture medium. An impaired migration, as compared to control experiments without Cortactin knockdown, was observed following CXCL12 triggering. Reduced Cortactin expression and phosphorylation were also detected both in vivo and in vitro after treatment with Ibrutinib, a Btk inhibitor. Our results highlight the role of Cortactin in CLL as a check-point molecule between the BCR and CXCR4 signalling pathways.
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Affiliation(s)
- Veronica Martini
- Department of Medicine, Haematology and Clinical Immunology Branch, Padua University School of Medicine, University of Padova, Padova, Italy.,Venetian Institute of Molecular Medicine (VIMM), University of Padova, Padova, Italy
| | - Cristina Gattazzo
- Department of Medicine, Haematology and Clinical Immunology Branch, Padua University School of Medicine, University of Padova, Padova, Italy.,Venetian Institute of Molecular Medicine (VIMM), University of Padova, Padova, Italy
| | - Federica Frezzato
- Department of Medicine, Haematology and Clinical Immunology Branch, Padua University School of Medicine, University of Padova, Padova, Italy.,Venetian Institute of Molecular Medicine (VIMM), University of Padova, Padova, Italy
| | - Valentina Trimarco
- Department of Medicine, Haematology and Clinical Immunology Branch, Padua University School of Medicine, University of Padova, Padova, Italy.,Venetian Institute of Molecular Medicine (VIMM), University of Padova, Padova, Italy
| | - Marco Pizzi
- Department of Medicine, General Pathology and Cytopathology Unit, University of Padova, Padova, Italy
| | - Giorgia Chiodin
- Department of Medicine, Haematology and Clinical Immunology Branch, Padua University School of Medicine, University of Padova, Padova, Italy.,Venetian Institute of Molecular Medicine (VIMM), University of Padova, Padova, Italy
| | - Filippo Severin
- Department of Medicine, Haematology and Clinical Immunology Branch, Padua University School of Medicine, University of Padova, Padova, Italy.,Venetian Institute of Molecular Medicine (VIMM), University of Padova, Padova, Italy
| | - Edoardo Scomazzon
- Department of Medicine, Haematology and Clinical Immunology Branch, Padua University School of Medicine, University of Padova, Padova, Italy.,Venetian Institute of Molecular Medicine (VIMM), University of Padova, Padova, Italy
| | - Vincenza Guzzardo
- Department of Medicine, General Pathology and Cytopathology Unit, University of Padova, Padova, Italy
| | - Deborah Saraggi
- Department of Medicine, General Pathology and Cytopathology Unit, University of Padova, Padova, Italy
| | - Flavia Raggi
- Department of Medicine, Haematology and Clinical Immunology Branch, Padua University School of Medicine, University of Padova, Padova, Italy.,Venetian Institute of Molecular Medicine (VIMM), University of Padova, Padova, Italy
| | - Leonardo Martinello
- Department of Medicine, Haematology and Clinical Immunology Branch, Padua University School of Medicine, University of Padova, Padova, Italy.,Venetian Institute of Molecular Medicine (VIMM), University of Padova, Padova, Italy
| | - Monica Facco
- Department of Medicine, Haematology and Clinical Immunology Branch, Padua University School of Medicine, University of Padova, Padova, Italy.,Venetian Institute of Molecular Medicine (VIMM), University of Padova, Padova, Italy
| | - Andrea Visentin
- Department of Medicine, Haematology and Clinical Immunology Branch, Padua University School of Medicine, University of Padova, Padova, Italy.,Venetian Institute of Molecular Medicine (VIMM), University of Padova, Padova, Italy
| | - Francesco Piazza
- Department of Medicine, Haematology and Clinical Immunology Branch, Padua University School of Medicine, University of Padova, Padova, Italy.,Venetian Institute of Molecular Medicine (VIMM), University of Padova, Padova, Italy
| | | | - Gianpietro Semenzato
- Department of Medicine, Haematology and Clinical Immunology Branch, Padua University School of Medicine, University of Padova, Padova, Italy.,Venetian Institute of Molecular Medicine (VIMM), University of Padova, Padova, Italy
| | - Livio Trentin
- Department of Medicine, Haematology and Clinical Immunology Branch, Padua University School of Medicine, University of Padova, Padova, Italy.,Venetian Institute of Molecular Medicine (VIMM), University of Padova, Padova, Italy
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Cortactin and phosphorylated cortactin tyr 466 expression in temporal bone carcinoma. Am J Otolaryngol 2017; 38:208-212. [PMID: 28131549 DOI: 10.1016/j.amjoto.2017.01.012] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2016] [Accepted: 01/17/2017] [Indexed: 12/17/2022]
Abstract
PURPOSE Cortactin is a multidomain protein engaged in several cellular mechanisms involving actin assembly and cytoskeletal arrangement. Cortactin overexpression in several malignancies has been associated with increased cell migration, invasion, and metastatic potential. Cortactin needs to be activated by tyrosine or serine/threonine phosphorylation. The role of cortactin and phosphorylated cortactin (residue tyr466) was investigated in temporal bone squamous cell carcinoma (TBSCC). MATERIALS AND METHODS Immunohistochemical expression of cortactin and phosphorylated cortactin (residue tyr466) was assessed in 27 consecutively-operated TBSCCs. RESULTS Several clinicopathological variables correlated with recurrence (pT stage, dura mater involvement), and disease-free survival (DFS) (cT stage, pT stage, pN status, dura mater involvement). Twenty-three of 24 immunohistochemically evaluable TBSCCs were cortactin-positive. Median cortactin expression was 75.0%. Cortactin reaction in the cytoplasm was more intense in carcinoma cells than in normal adjacent tissue. Recurrence and DFS rates did not correlate with cortactin and phosphorylated cortactin (residue tyr466) expression in TBSCC specimens. CONCLUSIONS Cortactin upregulation in TBSCC supports the conviction that inhibiting cortactin functions could have selective effects on this malignancy. Multi-institutional studies should further investigate the role of cortactin and phosphorylated cortactin in TBSCC, and their potential clinical application in integrated treatment modalities.
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Role of Akt2 in regulation of metastasis suppressor 1 expression and colorectal cancer metastasis. Oncogene 2017; 36:3104-3118. [PMID: 28068324 DOI: 10.1038/onc.2016.460] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2016] [Revised: 10/27/2016] [Accepted: 10/31/2016] [Indexed: 12/15/2022]
Abstract
Survival signaling is critical for the metastatic program of cancer cells. The current study investigated the role of Akt survival proteins in colorectal cancer (CRC) metastasis and explored potential mechanisms of Akt-mediated metastasis regulation. Using an orthotopic implantation model in mice, which uniquely recapitulates the entire multistep process of CRC metastasis, combined with an inducible system of short hairpin RNA-mediated Akt isoform knockdown in human CRC cells, our studies confirm a role of Akt2 in CRC cell dissemination to distant organs in vivo. Akt2 deficiency profoundly inhibited the development of liver lesions in mice, whereas Akt1 had no effect under the experimental conditions used in the study. Array analysis of human metastatic genes identified the scaffolding protein metastasis suppressor 1 (MTSS1) as a novel Akt2-regulated gene. Inducible loss of Akt2 in CRC cells robustly upregulated MTSS1 at the messenger RNA and protein level, and the accumulated protein was functionally active as shown by its ability to engage an MTSS1-Src-cortactin inhibitory axis. MTSS1 expression led to a marked reduction in levels of functional cortacin (pcortactin Y421), an actin nucleation-promoting factor that has a crucial role in cancer cell invasion and metastasis. MTSS1 was also shown to mediate suppressive effects of Akt2 deficiency on CRC cell viability, survival, migration and actin polymerization in vitro. The relevance of these findings to human CRC is supported by analysis of The Cancer Genome Atlas (TCGA) and NCBI GEO data sets, which demonstrated inverse changes in expression of Akt2 and MTSS1 during CRC progression. Taken together, the data identify MTSS1 as a new Akt2-regulated gene, and point to suppression of MTSS1 as a key step in the metastasis-promoting effects of Akt2 in CRC cells.
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Adams G, Zhou J, Wang W, Wu H, Quan J, Liu Y, Xia P, Wang Z, Zhou S, Jiang J, Mo F, Zhuang X, Thomas K, Hill DL, Aikhionbare FO, He P, Liu X, Ding X, Yao X. The Microtubule Plus End Tracking Protein TIP150 Interacts with Cortactin to Steer Directional Cell Migration. J Biol Chem 2016; 291:20692-706. [PMID: 27451391 DOI: 10.1074/jbc.m116.732719] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2016] [Indexed: 02/05/2023] Open
Abstract
Cell migration is orchestrated by dynamic interactions of microtubules with the plasma membrane cortex. How these interactions facilitate these dynamic processes is still being actively investigated. TIP150 is a newly characterized microtubule plus end tracking protein essential for mitosis and entosis (Ward, T., Wang, M., Liu, X., Wang, Z., Xia, P., Chu, Y., Wang, X., Liu, L., Jiang, K., Yu, H., Yan, M., Wang, J., Hill, D. L., Huang, Y., Zhu, T., and Yao, X. (2013) Regulation of a dynamic interaction between two microtubule-binding proteins, EB1 and TIP150, by the mitotic p300/CBP-associated factor (PCAF) orchestrates kinetochore microtubule plasticity and chromosome stability during mitosis. J. Biol. Chem. 288, 15771-15785; Xia, P., Zhou, J., Song, X., Wu, B., Liu, X., Li, D., Zhang, S., Wang, Z., Yu, H., Ward, T., Zhang, J., Li, Y., Wang, X., Chen, Y., Guo, Z., and Yao, X. (2014) Aurora A orchestrates entosis by regulating a dynamic MCAK-TIP150 interaction. J. Mol. Cell Biol. 6, 240-254). Here we show that TIP150 links dynamic microtubules to steer cell migration by interacting with cortactin. Mechanistically, TIP150 binds to cortactin via its C-terminal tail. Interestingly, the C-terminal TIP150 proline-rich region (CT150) binds to the Src homology 3 domain of cortactin specifically, and such an interaction is negatively regulated by EGF-elicited tyrosine phosphorylation of cortactin. Importantly, suppression of TIP150 or overexpression of phospho-mimicking cortactin inhibits polarized cell migration. In addition, CT150 disrupts the biochemical interaction between TIP150 and cortactin in vitro, and perturbation of the TIP150-cortactin interaction in vivo using a membrane-permeable TAT-CT150 peptide results in an inhibition of directional cell migration. We reason that a dynamic TIP150-cortactin interaction orchestrates directional cell migration via coupling dynamic microtubule plus ends to the cortical cytoskeleton.
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Affiliation(s)
- Gregory Adams
- From the BUCM-MSM Joint Research Group for Cellular Dynamics, BUCM School of Basic Medical Sciences, and Anhui Key Laboratory for Cellular Dynamics and Chemical Biology, University of Science and Technology of China, Hefei, Anhui 230026, China, the Departments of Physiology and
| | - Jiajia Zhou
- From the BUCM-MSM Joint Research Group for Cellular Dynamics, BUCM School of Basic Medical Sciences, and Anhui Key Laboratory for Cellular Dynamics and Chemical Biology, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Wenwen Wang
- From the BUCM-MSM Joint Research Group for Cellular Dynamics, BUCM School of Basic Medical Sciences, and Anhui Key Laboratory for Cellular Dynamics and Chemical Biology, University of Science and Technology of China, Hefei, Anhui 230026, China, the Departments of Physiology and
| | - Huihui Wu
- From the BUCM-MSM Joint Research Group for Cellular Dynamics, BUCM School of Basic Medical Sciences, and Anhui Key Laboratory for Cellular Dynamics and Chemical Biology, University of Science and Technology of China, Hefei, Anhui 230026, China, the Departments of Physiology and
| | - Jie Quan
- From the BUCM-MSM Joint Research Group for Cellular Dynamics, BUCM School of Basic Medical Sciences, and Anhui Key Laboratory for Cellular Dynamics and Chemical Biology, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Yingying Liu
- From the BUCM-MSM Joint Research Group for Cellular Dynamics, BUCM School of Basic Medical Sciences, and Anhui Key Laboratory for Cellular Dynamics and Chemical Biology, University of Science and Technology of China, Hefei, Anhui 230026, China, the Departments of Physiology and
| | - Peng Xia
- From the BUCM-MSM Joint Research Group for Cellular Dynamics, BUCM School of Basic Medical Sciences, and Anhui Key Laboratory for Cellular Dynamics and Chemical Biology, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Zhikai Wang
- From the BUCM-MSM Joint Research Group for Cellular Dynamics, BUCM School of Basic Medical Sciences, and Anhui Key Laboratory for Cellular Dynamics and Chemical Biology, University of Science and Technology of China, Hefei, Anhui 230026, China, the Departments of Physiology and
| | - Shu Zhou
- From the BUCM-MSM Joint Research Group for Cellular Dynamics, BUCM School of Basic Medical Sciences, and Anhui Key Laboratory for Cellular Dynamics and Chemical Biology, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Jiying Jiang
- From the BUCM-MSM Joint Research Group for Cellular Dynamics, BUCM School of Basic Medical Sciences, and Anhui Key Laboratory for Cellular Dynamics and Chemical Biology, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Fei Mo
- From the BUCM-MSM Joint Research Group for Cellular Dynamics, BUCM School of Basic Medical Sciences, and Anhui Key Laboratory for Cellular Dynamics and Chemical Biology, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Xiaoxuan Zhuang
- From the BUCM-MSM Joint Research Group for Cellular Dynamics, BUCM School of Basic Medical Sciences, and Anhui Key Laboratory for Cellular Dynamics and Chemical Biology, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Kelwyn Thomas
- Medicine and Neurobiology, Morehouse School of Medicine, Atlanta, Georgia 30310
| | - Donald L Hill
- the Comprehensive Cancer Center, University of Alabama, Birmingham, Alabama 35294, and
| | - Felix O Aikhionbare
- Medicine and Neurobiology, Morehouse School of Medicine, Atlanta, Georgia 30310
| | - Ping He
- the Departments of Physiology and the Guangzhou Women and Children's Medical Center, Guangzhou 510623, China
| | - Xing Liu
- From the BUCM-MSM Joint Research Group for Cellular Dynamics, BUCM School of Basic Medical Sciences, and Anhui Key Laboratory for Cellular Dynamics and Chemical Biology, University of Science and Technology of China, Hefei, Anhui 230026, China, the Departments of Physiology and
| | - Xia Ding
- From the BUCM-MSM Joint Research Group for Cellular Dynamics, BUCM School of Basic Medical Sciences, and Anhui Key Laboratory for Cellular Dynamics and Chemical Biology, University of Science and Technology of China, Hefei, Anhui 230026, China,
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Lin SC, Gou GH, Hsia CW, Ho CW, Huang KL, Wu YF, Lee SY, Chen YH. Simulated Microgravity Disrupts Cytoskeleton Organization and Increases Apoptosis of Rat Neural Crest Stem Cells Via Upregulating CXCR4 Expression and RhoA-ROCK1-p38 MAPK-p53 Signaling. Stem Cells Dev 2016; 25:1172-93. [PMID: 27269634 DOI: 10.1089/scd.2016.0040] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
Neural crest stem cells (NCSCs) are a population of multipotent stem cells that are distributed broadly in many tissues and organs and are capable of differentiating into a variety of cell types that are dispersed throughout three germ layers. We are interested in studying the effects of simulated microgravity on the survival and self-renewal of NCSCs. NCSCs extracted from the hair follicle bulge region of the rat whisker pad were cultured in vitro, respectively, in a 2D adherent environment and a 3D suspension environment using the rotatory cell culture system (RCCS) to simulate microgravity. We found that rat NCSCs (rNCSCs) cultured in the RCCS for 24 h showed disrupted organization of filamentous actin, increased globular actin level, formation of plasma membrane blebbing and neurite-like artifact, as well as decreased levels of cortactin and vimentin. Interestingly, ∼70% of RCCS-cultured rNCSCs co-expressed cleaved (active) caspase-3 and neuronal markers microtubule-associated protein 2 (MAP2) and Tuj1 instead of NCSC markers, suggesting stress-induced formation of neurite-like artifact in rNCSCs. In addition, rNCSCs showed increased C-X-C chemokine receptor 4 (CXCR4) expression, RhoA GTPase activation, Rho-associated kinase 1 (ROCK1) and p38 mitogen-activated protein kinase (MAPK) phosphorylation, and p53 expression in the nucleus. Incubation of rNCSCs with the Gα protein inhibitor pertussis toxin or CXCR4 siRNA during RCCS-culturing prevented cytoskeleton disorganization and plasma membrane blebbing, and it suppressed apoptosis of rNCSCs. Taken together, we demonstrate for the first time that simulated microgravity disrupts cytoskeleton organization and increases apoptosis of rNCSCs via upregulating CXCR4 expression and the RhoA-ROCK1-p38 MAPK-p53 signaling pathway.
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Affiliation(s)
- Shing-Chen Lin
- 1 Graduate Institute of Aerospace and Undersea Medicine, National Defense Medical Center , Neihu District, Taipei City, Taiwan
| | - Guo-Hau Gou
- 2 Graduate Institute of Medical Sciences, National Defense Medical Center , Neihu District, Taipei City, Taiwan
| | - Ching-Wu Hsia
- 2 Graduate Institute of Medical Sciences, National Defense Medical Center , Neihu District, Taipei City, Taiwan
| | - Cheng-Wen Ho
- 1 Graduate Institute of Aerospace and Undersea Medicine, National Defense Medical Center , Neihu District, Taipei City, Taiwan .,3 Division of Rehabilitation Medicine, Taoyuan Armed Forces General Hospital , Longtan Township, Taoyuan County, Taiwan
| | - Kun-Lun Huang
- 1 Graduate Institute of Aerospace and Undersea Medicine, National Defense Medical Center , Neihu District, Taipei City, Taiwan .,4 Department of Undersea and Hyperbaric Medicine, Tri-Service General Hospital , Neihu District, Taipei City, Taiwan
| | - Yung-Fu Wu
- 5 Department of Medical Research, Tri-Service General Hospital , Neihu District, Taipei City, Taiwan
| | - Shih-Yu Lee
- 1 Graduate Institute of Aerospace and Undersea Medicine, National Defense Medical Center , Neihu District, Taipei City, Taiwan
| | - Yi-Hui Chen
- 1 Graduate Institute of Aerospace and Undersea Medicine, National Defense Medical Center , Neihu District, Taipei City, Taiwan
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Liang Y, Meng D, Zhu B, Pan J. Mechanism of ciliary disassembly. Cell Mol Life Sci 2016; 73:1787-802. [PMID: 26869233 PMCID: PMC11108551 DOI: 10.1007/s00018-016-2148-7] [Citation(s) in RCA: 73] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2015] [Revised: 01/22/2016] [Accepted: 01/25/2016] [Indexed: 12/19/2022]
Abstract
As motile organelles and sensors, cilia play pivotal roles in cell physiology, development and organ homeostasis. Ciliary defects are associated with a class of cilia-related diseases or developmental disorders, termed ciliopathies. Even though the presence of cilia is required for diverse functions, cilia can be removed through ciliary shortening or resorption that necessitates disassembly of the cilium, which occurs normally during cell cycle progression, cell differentiation and in response to cellular stress. The functional significance of ciliary resorption is highlighted in controlling the G1-S transition during cell cycle progression. Internal or external cues that trigger ciliary resorption initiate signaling cascades that regulate several downstream events including depolymerization of axonemal microtubules, dynamic changes in actin and the ciliary membrane, regulation of intraflagellar transport and posttranslational modifications of ciliary proteins. To ensure ciliary resorption, both the active disassembly of the cilium and the simultaneous inhibition of ciliary assembly must be coordinately regulated.
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Affiliation(s)
- Yinwen Liang
- MOE Key Laboratory of Protein Sciences, School of Life Sciences, Tsinghua University, Beijing, 100084, China
| | - Dan Meng
- MOE Key Laboratory of Protein Sciences, School of Life Sciences, Tsinghua University, Beijing, 100084, China
| | - Bing Zhu
- MOE Key Laboratory of Protein Sciences, School of Life Sciences, Tsinghua University, Beijing, 100084, China
| | - Junmin Pan
- MOE Key Laboratory of Protein Sciences, School of Life Sciences, Tsinghua University, Beijing, 100084, China.
- Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, Shandong, China.
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Siar CH, Rahman ZABA, Tsujigiwa H, Mohamed Om Alblazi K, Nagatsuka H, Ng KH. Invadopodia proteins, cortactin, N-WASP and WIP differentially promote local invasiveness in ameloblastoma. J Oral Pathol Med 2016; 45:591-8. [PMID: 26752341 DOI: 10.1111/jop.12417] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/10/2015] [Indexed: 01/17/2023]
Abstract
BACKGROUND Cell migration and invasion through interstitial tissues are dependent upon several specialized characteristics of the migratory cell notably generation of proteolytic membranous protrusions or invadopodia. Ameloblastoma is a benign odontogenic epithelial neoplasm with a locally infiltrative behaviour. Cortactin and MMT1-MMP are two invadopodia proteins implicated in its local invasiveness. Other invadopodia regulators, namely N-WASP, WIP and Src kinase remain unclarified. This study addresses their roles in ameloblastoma. MATERIALS AND METHOD Eighty-seven paraffin-embedded ameloblastoma cases (20 unicystic, 47 solid/multicystic, 3 desmoplastic and 17 recurrent) were subjected to immunohistochemistry for expression of cortactin, N-WASP, WIP, Src kinase and F-actin, and findings correlated with clinicopathological parameters. RESULTS Invadopodia proteins (except Src kinase) and F-actin were widely detected in ameloblastoma (cortactin: n = 73/87, 83.9%; N-WASP: n = 59/87; 67.8%; WIP: n = 77/87; 88.5%; and F-actin: n = 87/87, 100%). Protein localization was mainly cytoplasmic and/or membranous, and occasionally nuclear for F-actin. Cortactin, which functions as an actin-scaffolding protein, demonstrated significantly higher expression levels within ameloblastoma tumoral epithelium than in stroma (P < 0.05). N-WASP, which coordinates actin polymerization and invadopodia-mediated extracellular matrix degradation, was overexpressed in the solid/multicystic subtype (P < 0.05). WIP, an upstream regulator of N-WASP, and F-actin were significantly upregulated along the tumour invasive front compared to tumour centres (P < 0.05). Except for males with cortactin overexpression, other clinical parameters (age, ethnicity and anatomical site) showed no significant correlations. CONCLUSIONS Present results suggest that local invasiveness of ameloblastoma is dependent upon the migratory potential of its tumour cells as defined by their distribution of cortactin, N-WASP and WIP in correlation with F-actin cytoskeletal dynamics.
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Affiliation(s)
- Chong Huat Siar
- Department of Oro-Maxillofacial Surgical and Medical Sciences, Faculty of Dentistry, University of Malaya, Kuala Lumpur, Malaysia
| | - Zainal Ariff Bin Abdul Rahman
- Department of Oro-Maxillofacial Surgical and Medical Sciences, Faculty of Dentistry, University of Malaya, Kuala Lumpur, Malaysia
| | - Hidetsugu Tsujigiwa
- Laboratory of Histopathology, Department of Life Science, Faculty of Science, Okayama University of Science, Okayama, Japan
| | - Kamila Mohamed Om Alblazi
- Department of Oro-Maxillofacial Surgical and Medical Sciences, Faculty of Dentistry, University of Malaya, Kuala Lumpur, Malaysia
| | - Hitoshi Nagatsuka
- Department of Oral Pathology and Medicine, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
| | - Kok Han Ng
- Unit of Stomatology, Cancer Research Centre, Institute for Medical Research, Kuala Lumpur, Malaysia
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Ito A, Shimazu T, Maeda S, Shah AA, Tsunoda T, Iemura SI, Natsume T, Suzuki T, Motohashi H, Yamamoto M, Yoshida M. The subcellular localization and activity of cortactin is regulated by acetylation and interaction with Keap1. Sci Signal 2015; 8:ra120. [DOI: 10.1126/scisignal.aad0667] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Evans JV, Kelley LC, Hayes KE, Ammer AG, Martin KH, Weed SA. Further insights into cortactin conformational regulation. BIOARCHITECTURE 2014; 1:21-23. [PMID: 21866257 DOI: 10.4161/bioa.1.1.14631] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2010] [Accepted: 12/21/2010] [Indexed: 12/29/2022]
Abstract
The actin regulatory protein cortactin is involved in multiple signaling pathways impinging on the cortical actin cytoskeleton. Cortactin is phosphorylated by ERK1/2 and Src family tyrosine kinases, resulting in neuronal Wiskott Aldrich Syndrome protein (N-WASp) activation and enhanced actin related protein (Arp)2/3-mediated actin nucleation. Cortactin migrates as an 80/85 kDa doublet when analyzed by SDS-PAGE. Phosphorylation by ERK1/2 is associated with conversion of the 80 kDa to the 85 kDa form, postulated to occur by inducing a conformational alteration that releases the carboxyl-terminal SH3 domain from autoinhibition. Our recent analysis of the 80-85 kDa cortactin "shift" in tumor cells indicates that while ERK1/2 phosphorylation is associated with the 85 kDa shift, this phosphorylation event is not required for the shift to occur, nor does ERK1/2 phosphorylation appreciably alter global cortactin confirmation. These data indicate that additional factors besides ERK1/2 phosphorylation contribute to generating and/or maintaining the activated 85 kDa cortactin form in stimulated cells.
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Affiliation(s)
- Jason V Evans
- Department of Neurobiology and Anatomy; Program in Cancer Cell Biology; Mary Babb Randolph Cancer Center; West Virginia University; Morgantown, WV USA
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Navratil AM, Dozier MG, Whitesell JD, Clay CM, Roberson MS. Role of cortactin in dynamic actin remodeling events in gonadotrope cells. Endocrinology 2014; 155:548-57. [PMID: 24274984 PMCID: PMC3891938 DOI: 10.1210/en.2012-1924] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
GnRH induces marked activation of the actin cytoskeleton in gonadotropes; however, the physiological consequences and cellular mechanisms responsible have yet to be fully elucidated. The current studies focus on the actin scaffolding protein cortactin. Using the gonadotrope-derived αT3-1 cell line, we found that cortactin is phosphorylated at Y(421), S(405), and S(418) in a time-dependent manner in response to the GnRH agonist buserelin (GnRHa). GnRHa induced translocation of cortactin to the leading edge of the plasma membrane where it colocalizes with actin and actin-related protein 3 (Arp3). Incubation of αT3-1 cells with the c-src inhibitor phosphoprotein phosphatase 1, blocked tyrosine phosphorylation of cortactin, reduced cortactin association with Arp3, and blunted actin reorganization in response to GnRHa. Additionally, we used RNA silencing strategies to knock down cortactin in αT3-1 cells. Knockdown of cortactin blocked the ability of αT3-1 cells to generate filopodia, lamellipodia, and membrane ruffles in response to GnRHa. We show that lamellipodia and filopodia are capable of LHβ mobilization in primary pituitary culture after GnRHa treatment, and disruption of these structures using jasplakinolide reduces LH secretion. Collectively, our findings suggest that after GnRHa activation, src activity leads to tyrosine phosphorylation of cortactin, which facilitates its association with Arp3 to engage the actin cytoskeleton. The reorganization of actin by cortactin potentially underlies GnRHa-induced secretory events within αT3-1 cells.
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Affiliation(s)
- Amy M Navratil
- College of Arts and Sciences, Department of Zoology and Physiology (A.M.N., M.G.D.), University of Wyoming, Laramie, Wyoming 82071; College of Veterinary Medicine and Biomedical Science, Departments of Microbiology, Immunology, and Pathology (J.D.W.) and Biomedical Sciences (C.M.C.), Colorado State University, Ft Collins, Colorado, 80523; and College of Veterinary Medicine, Department of Biomedical Sciences (M.S.R.), Cornell University, Ithaca, New York 14853
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Van Audenhove I, Boucherie C, Pieters L, Zwaenepoel O, Vanloo B, Martens E, Verbrugge C, Hassanzadeh-Ghassabeh G, Vandekerckhove J, Cornelissen M, De Ganck A, Gettemans J. Stratifying fascin and cortactin function in invadopodium formation using inhibitory nanobodies and targeted subcellular delocalization. FASEB J 2014; 28:1805-18. [PMID: 24414419 DOI: 10.1096/fj.13-242537] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Invadopodia are actin-rich protrusions arising through the orchestrated regulation of precursor assembly, stabilization, and maturation, endowing cancer cells with invasive properties. Using nanobodies (antigen-binding domains of Camelid heavy-chain antibodies) as perturbators of intracellular functions and/or protein domains at the level of the endogenous protein, we examined the specific contribution of fascin and cortactin during invadopodium formation in MDA-MB-231 breast and PC-3 prostate cancer cells. A nanobody (K(d)~35 nM, 1:1 stoichiometry) that disrupts fascin F-actin bundling emphasizes the importance of stable actin bundles in invadopodium array organization and turnover, matrix degradation, and cancer cell invasion. Cortactin-SH3 dependent WIP recruitment toward the plasma membrane was specifically inhibited by a cortactin nanobody (K(d)~75 nM, 1:1 stoichiometry). This functional domain is shown to be important for formation of properly organized invadopodia, MMP-9 secretion, matrix degradation, and cancer cell invasion. Notably, using a subcellular delocalization strategy to trigger protein loss of function, we uncovered a fascin-bundling-independent role in MMP-9 secretion. Hence, we demonstrate that nanobodies enable high resolution protein function mapping in cells.
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Affiliation(s)
- Isabel Van Audenhove
- 1Department of Biochemistry, Faculty of Medicine and Health Sciences, Ghent University, Albert Baertsoenkaai 3, B-9000 Ghent, Belgium.
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Liu C, Li Q, Zhou X, Kolosov VP, Perelman JM. Cortactin mediates elevated shear stress-induced mucin hypersecretion via actin polymerization in human airway epithelial cells. Int J Biochem Cell Biol 2013; 45:2756-63. [DOI: 10.1016/j.biocel.2013.09.013] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2013] [Revised: 09/12/2013] [Accepted: 09/28/2013] [Indexed: 11/25/2022]
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Lin YC, Tsai PH, Lin CY, Cheng CH, Lin TH, Lee KPH, Huang KY, Chen SH, Hwang JJ, Kandaswami CC, Lee MT. Impact of flavonoids on matrix metalloproteinase secretion and invadopodia formation in highly invasive A431-III cancer cells. PLoS One 2013; 8:e71903. [PMID: 23991004 PMCID: PMC3749203 DOI: 10.1371/journal.pone.0071903] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2013] [Accepted: 07/04/2013] [Indexed: 01/11/2023] Open
Abstract
Metastasis is a major cause of mortality in cancer patients. Invadopodia are considered to be crucial structures that allow cancer cells to penetrate across the extracellular matrix (ECM) by using matrix metalloproteinases (MMPs). Previously, we isolated a highly invasive A431-III subline from parental A431 cells by Boyden chamber assay. The A431-III cells possess higher invasive and migratory abilities, elevated levels of MMP-9 and an enhanced epithelial-mesenchymal transition (EMT) phenotype. In this study, we discovered that A431-III cells had an increased potential to form invadopodia and an improved capacity to degrade ECM compared with the original A431 cells. We also observed enhanced phosphorylation levels of cortactin and Src in A431-III cells; these phosphorylated proteins have been reported to be the main regulators of invadopodia formation. Flavonoids, almost ubiquitously distributed in food plants and plant food products, have been documented to exhibit anti-tumor properties. Therefore, it was of much interest to explore the effects of flavonoid antioxidants on the metastatic activity of A431-III cells. Exposure of A431-III cells to two potent dietary flavonoids, namely luteolin (Lu) and quercetin (Qu), caused inhibition of invadopodia formation and decrement in ECM degradation. We conclude that Lu and Qu attenuate the phosphorylation of cortactin and Src in A431-III cells. As a consequence, there ensues a disruption of invadopodia generation and the suppression of MMP secretion. These changes, in concert, bring about a reduction in metastasis.
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Affiliation(s)
- Yo-Chuen Lin
- Institute of Biochemical Sciences, National Taiwan University, Taipei, Taiwan
| | - Pei-Hsun Tsai
- Institute of Biochemical Sciences, National Taiwan University, Taipei, Taiwan
| | - Chun-Yu Lin
- Institute of Biochemical Sciences, National Taiwan University, Taipei, Taiwan
| | - Chia-Hsiung Cheng
- Department of Biochemistry, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Tsung-Han Lin
- Institute of Biochemical Sciences, National Taiwan University, Taipei, Taiwan
| | - Kevin P. H. Lee
- School of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Kai-Yun Huang
- Institute of Biological Chemistry, Academia Sinica, Taipei, Taiwan
| | - Shih-Hsun Chen
- Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, Maryland, United States of America
| | - Jiuan-Jiuan Hwang
- Institute of Physiology, National Yang-Ming University, Taipei, Taiwan
| | | | - Ming-Ting Lee
- Institute of Biochemical Sciences, National Taiwan University, Taipei, Taiwan
- Institute of Biological Chemistry, Academia Sinica, Taipei, Taiwan
- * E-mail:
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Affiliation(s)
- Augusto C. Montezano
- From the British Heart Foundation Glasgow Cardiovascular Research Centre, Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, UK
| | - Rhian M. Touyz
- From the British Heart Foundation Glasgow Cardiovascular Research Centre, Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, UK
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Zhang S, Guo T, Chan H, Sze SK, Koh CG. Integrative transcriptome and proteome study to identify the signaling network regulated by POPX2 phosphatase. J Proteome Res 2013; 12:2525-36. [PMID: 23621870 DOI: 10.1021/pr301113c] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
POPX2 is a serine/threonine phosphatase belonging to the protein phosphatase 2C (PP2C) family that has been found to be elevated in invasive breast cancer cells. Silencing of POPX2 results in lower cell motility and invasiveness. The molecular mechanism of POPX2-regulated cell motility is not well understood. To identify the relevant signaling pathways, we investigated the transcriptome and proteome of POPX2-knockdown MDA-MB-231 breast cancer cells. Our data suggest that POPX2 might be involved in the regulation of focal adhesions and cytoskeleton dynamics through the regulation of MAP kinase (MAPK1/3) and glycogen synthase kinase 3 (GSK3α/β) activities. Silencing POPX2 alters phosphorylation levels of MAPK1/3 and GSK3α/β and results in reduced activity of these kinases. Both MAPK and GSK3 are known to regulate the activities of transcription factors. MAPK1/3 are also implicated in the phosphorylation of stathmin. The level of phospho-stathmin was found to be lower in POPX2 knockdown cells. As phosphorylation of stathmin inhibits its microtubule severing activity, we observed less stable microtubules in POPX2 knockdown cells. Taken together, our data suggest that POPX2 might regulate cell motility through its regulation of the MAPK1/3, leading to changes in the cytoskeleton and cell motility.
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Affiliation(s)
- Songjing Zhang
- School of Biological Sciences, Nanyang Technological University, Singapore 6387551
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Patel VB, Wang Z, Fan D, Zhabyeyev P, Basu R, Das SK, Wang W, Desaulniers J, Holland SM, Kassiri Z, Oudit GY. Loss of p47phox subunit enhances susceptibility to biomechanical stress and heart failure because of dysregulation of cortactin and actin filaments. Circ Res 2013; 112:1542-56. [PMID: 23553616 DOI: 10.1161/circresaha.111.300299] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
RATIONALE The classic phagocyte nicotinamide adenine dinucleotide phosphate oxidase (gp91(phox) or Nox2) is expressed in the heart. Nox2 activation requires membrane translocation of the p47(phox) subunit and is linked to heart failure. We hypothesized that loss of p47(phox) subunit will result in decreased reactive oxygen species production and resistance to heart failure. OBJECTIVE To define the role of p47(phox) in pressure overload-induced biomechanical stress. METHODS AND RESULTS Eight-week-old male p47(phox) null (p47(phox) knockout [KO]), Nox2 null (Nox2KO), and wild-type mice were subjected to transverse aortic constriction-induced pressure overload. Contrary to our hypothesis, p47(phox)KO mice showed markedly worsened systolic dysfunction in response to pressure overload at 5 and 9 weeks after transverse aortic constriction compared with wild-type-transverse aortic constriction mice. We found that biomechanical stress upregulated N-cadherin and β-catenin in p47(phox)KO hearts but disrupted the actin filament cytoskeleton and reduced phosphorylation of focal adhesion kinase. p47(phox) interacts with cytosolic cortactin by coimmunoprecipitation and double immunofluorescence staining in murine and human hearts and translocated to the membrane on biomechanical stress where cortactin interacted with N-cadherin, resulting in adaptive cytoskeletal remodeling. However, p47(phox)KO hearts showed impaired interaction of cortactin with N-cadherin, resulting in loss of biomechanical stress-induced actin polymerization and cytoskeletal remodeling. In contrast, Nox2 does not interact with cortactin, and Nox2-deficient hearts were protected from pressure overload-induced adverse myocardial and intracellular cytoskeletal remodeling. CONCLUSIONS We showed a novel role of p47(phox) subunit beyond and independent of nicotinamide adenine dinucleotide phosphate oxidase activity as a regulator of cortactin and adaptive cytoskeletal remodeling, leading to a paradoxically enhanced susceptibility to biomechanical stress and heart failure.
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Affiliation(s)
- Vaibhav B Patel
- Department of Medicine, Division of Cardiology, University of Alberta, Edmonton T6G 2S2, AB, Canada
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Miyaso H, Nakamura N, Matsuno Y, Kawashiro Y, Komiyama M, Mori C. Postnatal exposure to low-dose decabromodiphenyl ether adversely affects mouse testes by increasing thyrosine phosphorylation level of cortactin. J Toxicol Sci 2013; 37:987-99. [PMID: 23038006 DOI: 10.2131/jts.37.987] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
Decabromodiphenyl ether (decaBDE) is a brominated flame retardant used in many commercial products such as televisions, computers, and textiles. Recent reports indicate that decaBDE adversely affects male reproductive organs in mice, but the underlying molecular mechanisms remain unknown. We hypothesized that decaBDE affects mouse testes by altering the expression and phosphorylation level of cortactin (CTTN), an F-actin-binding protein that is similar to flutamide, and we performed western blot analyses on testicular samples from mice subcutaneously injected with decaBDE (0.025, 0.25, and 2.5 mg/kg body weight/day) on postnatal days 1 to 5. Mice treated with low-dose decaBDE (0.025 mg/kg) showed reduced testicular weight, sperm count, elongated spermatid and Sertoli cell numbers, as well as induced Tyr phosphorylation of CTTN and reduced the expression level of p60 Src tyrosine kinase (SRC). Further, 0.25 and 2.5 mg/kg decaBDE-exposed groups produced an decrease the expression level of CTTN. High-dose decaBDE (2.5 mg/kg) showed increased abnormal germ cells, as well as induced Ser phosphorylation of CTTN and activated extracellular signal-regulated kinase (ERK1/2); however, high-dose decaBDE did not affect testicular weight and sperm count. These findings suggest that postnatal exposure to low-dose decaBDE inhibits mouse testicular development by increasing Tyr phosphorylation of CTTN, although different mechanisms may be involved depending on the dose of decaBDE.
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Affiliation(s)
- Hidenobu Miyaso
- Department of Bioenvironmental Medicine, Graduate School of Medicine, Chiba University, 1-8-1, Inohana, Chuo-ku, Chiba-Shi, Chiba, Japan
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Herrmann S, Ninkovic M, Kohl T, Lörinczi É, Pardo LA. Cortactin controls surface expression of the voltage-gated potassium channel K(V)10.1. J Biol Chem 2012; 287:44151-63. [PMID: 23144454 PMCID: PMC3531731 DOI: 10.1074/jbc.m112.372540] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
KV10.1 is a voltage-gated potassium channel aberrantly expressed in many cases of cancer, and participates in cancer initiation and tumor progression. Its action as an oncoprotein can be inhibited by a functional monoclonal antibody, indicating a role for channels located at the plasma membrane, accessible to the antibody. Cortactin is an actin-interacting protein implicated in cytoskeletal architecture and often amplified in several types of cancer. In this study, we describe a physical and functional interaction between cortactin and KV10.1. Binding of these two proteins occurs between the C terminus of KV10.1 and the proline-rich domain of cortactin, regions targeted by many post-translational modifications. This interaction is specific for KV10.1 and does not occur with KV10.2. Cortactin controls the abundance of KV10.1 at the plasma membrane and is required for functional expression of KV10.1 channels.
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Affiliation(s)
- Solveig Herrmann
- Oncophysiology Group, Max-Planck Institute of Experimental Medicine, Hermann-Rein-Str. 3, 37075 Göttingen, Germany
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Esparza MA, Bollati F, Garcia-Keller C, Virgolini MB, Lopez LM, Brusco A, Shen HW, Kalivas PW, Cancela LM. Stress-induced sensitization to cocaine: actin cytoskeleton remodeling within mesocorticolimbic nuclei. Eur J Neurosci 2012; 36:3103-17. [PMID: 22882295 PMCID: PMC4346257 DOI: 10.1111/j.1460-9568.2012.08239.x] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
This study investigated the consequence of repeated stress on actin cytoskeleton remodeling in the nucleus accumbens (NAc) and prefrontal cortex (Pfc), and the involvement of this remodeling in the expression of stress-induced motor cross-sensitization with cocaine. Wistar rats were restrained daily (2 h) for 7 days and, 3 weeks later, their NAc and Pfc were dissected 45 min after acute saline or cocaine (30 mg/kg i.p.). F-actin, actin-binding proteins (ABP) and GluR1 were quantified by Western blotting, and dendritic spines and postsynaptic density (PSD) size measured by electron microscopy. In the NAc from the stress plus cocaine group we observed a decrease in the phosphorylation of two ABPs, cofilin and cortactin, and an increase in the PSD size and the surface expression of GluR1, consistent with a more highly branched actin cytoskeleton. The Pfc also showed evidence of increased actin polymerization after stress as an increase was observed in Arp2, and in the number of spines. Inhibiting actin cycling and polymerization with latrunculin A into the NAc, but not the Pfc, inhibited the expression of cross-sensitization to cocaine (15 mg/kg i.p.) and restored the expression of GluR1 to control levels. This study shows that a history of repeated stress alters the ability of a subsequent cocaine injection to modulate dendritic spine morphology, actin dynamics and GluR1 expression in the NAc. Furthermore, by regulating GluR1 expression in the NAc, elevated actin cycling contributes to the expression of cross-sensitization between stress and cocaine, while stress-induced changes in the Pfc were not associated with cross-sensitization.
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Affiliation(s)
- Maria A Esparza
- IFEC-CONICET, Departamento de Farmacología, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Córdoba, Argentina
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Branched F-actin as a negative regulator of cilia formation. Exp Cell Res 2012; 319:147-51. [PMID: 22975729 DOI: 10.1016/j.yexcr.2012.08.009] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2012] [Revised: 08/30/2012] [Accepted: 08/31/2012] [Indexed: 01/18/2023]
Abstract
Cilia dysfunction leads to developmental defects and also a spectrum of human diseases termed ciliopathies. The actin cytoskeleton is a highly dynamic network and involved in many important biological processes, such as cell migration and membrane trafficking. Recently, actin dynamics has been shown to play a critical role in ciliogenesis. This review summarizes these results and provides insight into possible mechanisms.
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Tomar A, Lawson C, Ghassemian M, Schlaepfer DD. Cortactin as a target for FAK in the regulation of focal adhesion dynamics. PLoS One 2012; 7:e44041. [PMID: 22952866 PMCID: PMC3430618 DOI: 10.1371/journal.pone.0044041] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2012] [Accepted: 08/01/2012] [Indexed: 01/01/2023] Open
Abstract
Background Efficient cell movement requires the dynamic regulation of focal adhesion (FA) formation and turnover. FAs are integrin-associated sites of cell attachment and establish linkages to the cellular actin cytoskeleton. Cells without focal adhesion kinase (FAK), an integrin-activated tyrosine kinase, exhibit defects in FA turnover and cell motility. Cortactin is an actin binding adaptor protein that can influence FA dynamics. FAK and cortactin interact, but the cellular role of this complex remains unclear. Principal Findings Using FAK-null fibroblasts stably reconstituted with green fluorescent protein (GFP) tagged FAK constructs, we find that FAK activity and FAK C-terminal proline-rich region 2 (PRR2) and PRR3 are required for FA turnover and cell motility. Cortactin binds directly to FAK PRR2 and PRR3 sites via its SH3 domain and cortactin expression is important in promoting FA turnover and GFP-FAK release from FAs. FAK-cortactin binding is negatively-regulated by FAK activity and associated with cortactin tyrosine phosphorylation. FAK directly phosphorylates cortactin at Y421 and Y466 and over-expression of cortactin Y421, Y466, and Y482 mutated to phenylalanine (3YF) prevented FAK-enhanced FA turnover and cell motility. However, phospho-mimetic cortactin mutated to glutamic acid (3YE) did not affect FA dynamics and did not rescue FA turnover defects in cells with inhibited FAK activity or with PRR2-mutated FAK that does not bind cortactin. Conclusions Our results support a model whereby FAK-mediated FA remodeling may occur through the formation of a FAK-cortactin signaling complex. This involves a cycle of cortactin binding to FAK, cortactin tyrosine phosphorylation, and subsequent cortactin-FAK dissociation accompanied by FA turnover and cell movement.
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Affiliation(s)
- Alok Tomar
- Moores University of California San Diego Cancer Center, University of California San Diego, La Jolla, California, United States of America
| | - Christine Lawson
- Moores University of California San Diego Cancer Center, University of California San Diego, La Jolla, California, United States of America
| | - Majid Ghassemian
- Department of Chemistry and Biochemistry, University of California San Diego, La Jolla, California, United States of America
| | - David D. Schlaepfer
- Moores University of California San Diego Cancer Center, University of California San Diego, La Jolla, California, United States of America
- * E-mail:
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LTP induction translocates cortactin at distant synapses in wild-type but not Fmr1 knock-out mice. J Neurosci 2012; 32:7403-13. [PMID: 22623686 DOI: 10.1523/jneurosci.0968-12.2012] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Stabilization of long-term potentiation (LTP) depends on reorganization of the dendritic spine actin cytoskeleton. The present study tested whether this involves activity-driven effects on the actin-regulatory protein cortactin, and whether such effects are disturbed in the Fmr1 knock-out (KO) model of fragile X syndrome, in which stabilization of both actin filaments and LTP is impaired. LTP induced by theta burst stimulation (TBS) in hippocampal slices from wild-type mice was associated with rapid, broadly distributed, and NMDA receptor-dependent decreases in synapse-associated cortactin. The reduction in cortactin content was blocked by blebbistatin, while basal levels were reduced by nocodazole, indicating that cortactin's movements into and away from synapses are regulated by microtubule and actomyosin motors, respectively. These results further suggest that synapse-specific LTP influences cytoskeletal elements at distant connections. The rapid effects of TBS on synaptic cortactin content were absent in Fmr1 KOs as was evidence for activity-driven phosphorylation of the protein or its upstream kinase, ERK1/2. Phosphorylation regulates cortactin's interactions with actin, and coprecipitation of the two proteins was reduced in the KOs. We propose that, in the KOs, excessive basal phosphorylation of ERK1/2 disrupts its interactions with cortactin, thereby blocking the latter protein's use of actomyosin transport systems. These impairments are predicted to compromise the response of the subsynaptic cytoskeleton to learning-related afferent activity, both locally and at distant sites.
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