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Tomas Bort E, Joseph MD, Wang Q, Carter EP, Roth NJ, Gibson J, Samadi A, Kocher HM, Simoncelli S, McCormick PJ, Grose RP. Purinergic GPCR-integrin interactions drive pancreatic cancer cell invasion. eLife 2023; 12:e86971. [PMID: 36942939 PMCID: PMC10069867 DOI: 10.7554/elife.86971] [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: 02/14/2023] [Accepted: 03/17/2023] [Indexed: 03/23/2023] Open
Abstract
Pancreatic ductal adenocarcinoma (PDAC) continues to show no improvement in survival rates. One aspect of PDAC is elevated ATP levels, pointing to the purinergic axis as a potential attractive therapeutic target. Mediated in part by highly druggable extracellular proteins, this axis plays essential roles in fibrosis, inflammation response, and immune function. Analyzing the main members of the PDAC extracellular purinome using publicly available databases discerned which members may impact patient survival. P2RY2 presents as the purinergic gene with the strongest association with hypoxia, the highest cancer cell-specific expression, and the strongest impact on overall survival. Invasion assays using a 3D spheroid model revealed P2Y2 to be critical in facilitating invasion driven by extracellular ATP. Using genetic modification and pharmacological strategies, we demonstrate mechanistically that this ATP-driven invasion requires direct protein-protein interactions between P2Y2 and αV integrins. DNA-PAINT super-resolution fluorescence microscopy reveals that P2Y2 regulates the amount and distribution of integrin αV in the plasma membrane. Moreover, receptor-integrin interactions were required for effective downstream signaling, leading to cancer cell invasion. This work elucidates a novel GPCR-integrin interaction in cancer invasion, highlighting its potential for therapeutic targeting.
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Affiliation(s)
- Elena Tomas Bort
- Centre for Tumour Biology, Barts Cancer Institute, Queen Mary University of LondonLondonUnited Kingdom
- Centre for Endocrinology, William Harvey Research Institute, Queen Mary University of LondonLondonUnited Kingdom
| | - Megan D Joseph
- London Centre for Nanotechnology, University College LondonLondonUnited Kingdom
- Department of Chemistry, University College LondonLondonUnited Kingdom
| | - Qiaoying Wang
- Centre for Tumour Biology, Barts Cancer Institute, Queen Mary University of LondonLondonUnited Kingdom
| | - Edward P Carter
- Centre for Tumour Biology, Barts Cancer Institute, Queen Mary University of LondonLondonUnited Kingdom
| | - Nicolas J Roth
- Centre for Tumour Biology, Barts Cancer Institute, Queen Mary University of LondonLondonUnited Kingdom
- Centre for Endocrinology, William Harvey Research Institute, Queen Mary University of LondonLondonUnited Kingdom
| | - Jessica Gibson
- Centre for Tumour Biology, Barts Cancer Institute, Queen Mary University of LondonLondonUnited Kingdom
| | - Ariana Samadi
- Centre for Tumour Biology, Barts Cancer Institute, Queen Mary University of LondonLondonUnited Kingdom
| | - Hemant M Kocher
- Centre for Tumour Biology, Barts Cancer Institute, Queen Mary University of LondonLondonUnited Kingdom
| | - Sabrina Simoncelli
- London Centre for Nanotechnology, University College LondonLondonUnited Kingdom
- Department of Chemistry, University College LondonLondonUnited Kingdom
| | - Peter J McCormick
- Centre for Endocrinology, William Harvey Research Institute, Queen Mary University of LondonLondonUnited Kingdom
| | - Richard P Grose
- Centre for Tumour Biology, Barts Cancer Institute, Queen Mary University of LondonLondonUnited Kingdom
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2
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Ren B, Zhu Y. A New Perspective on Thyroid Hormones: Crosstalk with Reproductive Hormones in Females. Int J Mol Sci 2022; 23:ijms23052708. [PMID: 35269847 PMCID: PMC8911152 DOI: 10.3390/ijms23052708] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Revised: 01/25/2022] [Accepted: 02/21/2022] [Indexed: 12/19/2022] Open
Abstract
Accumulating evidence has shown that thyroid hormones (THs) are vital for female reproductive system homeostasis. THs regulate the reproductive functions through thyroid hormone receptors (THRs)-mediated genomic- and integrin-receptor-associated nongenomic mechanisms, depending on TH ligand status and DNA level, as well as transcription and extra-nuclear signaling transduction activities. These processes involve the binding of THs to intracellular THRs and steroid hormone receptors or membrane receptors and the recruitment of hormone-response elements. In addition, THs and other reproductive hormones can activate common signaling pathways due to their structural similarity and shared DNA consensus sequences among thyroid, peptide, and protein hormones and their receptors, thus constituting a complex and reciprocal interaction network. Moreover, THs not only indirectly affect the synthesis, secretion, and action of reproductive hormones, but are also regulated by these hormones at the same time. This crosstalk may be one of the pivotal factors regulating female reproductive behavior and hormone-related diseases, including tumors. Elucidating the interaction mechanism among the aforementioned hormones will contribute to apprehending the etiology of female reproductive diseases, shedding new light on the treatment of gynecological disorders.
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Affiliation(s)
- Bingtao Ren
- School of Pharmacy, Fudan University, Shanghai 200032, China;
| | - Yan Zhu
- Laboratory of Reproductive Pharmacology, NHC Key Laboratory of Reproduction Regulation, Shanghai Institute for Biomedical and Pharmaceutical Technologies, Fudan University, Shanghai 200032, China
- Correspondence: ; Tel.: +86-21-64438416
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3
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An Insight into GPCR and G-Proteins as Cancer Drivers. Cells 2021; 10:cells10123288. [PMID: 34943797 PMCID: PMC8699078 DOI: 10.3390/cells10123288] [Citation(s) in RCA: 57] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 11/17/2021] [Accepted: 11/22/2021] [Indexed: 12/14/2022] Open
Abstract
G-protein-coupled receptors (GPCRs) are the largest family of cell surface signaling receptors known to play a crucial role in various physiological functions, including tumor growth and metastasis. Various molecules such as hormones, lipids, peptides, and neurotransmitters activate GPCRs that enable the coupling of these receptors to highly specialized transducer proteins, called G-proteins, and initiate multiple signaling pathways. Integration of these intricate networks of signaling cascades leads to numerous biochemical responses involved in diverse pathophysiological activities, including cancer development. While several studies indicate the role of GPCRs in controlling various aspects of cancer progression such as tumor growth, invasion, migration, survival, and metastasis through its aberrant overexpression, mutations, or increased release of agonists, the explicit mechanisms of the involvement of GPCRs in cancer progression is still puzzling. This review provides an insight into the various responses mediated by GPCRs in the development of cancers, the molecular mechanisms involved and the novel pharmacological approaches currently preferred for the treatment of cancer. Thus, these findings extend the knowledge of GPCRs in cancer cells and help in the identification of therapeutics for cancer patients.
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Electrospun Microfibers Modulate Intracellular Amino Acids in Liver Cells via Integrin β1. Bioengineering (Basel) 2021; 8:bioengineering8070088. [PMID: 34206385 PMCID: PMC8301164 DOI: 10.3390/bioengineering8070088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Revised: 06/14/2021] [Accepted: 06/18/2021] [Indexed: 11/16/2022] Open
Abstract
Although numerous recent studies have shown the importance of polymeric microfibrous extracellular matrices (ECMs) in maintaining cell behaviors and functions, the mechanistic nexus between ECMs and intracellular activities is largely unknown. Nevertheless, this knowledge will be critical in understanding and treating diseases with ECM remodeling. Therefore, we present our findings that ECM microstructures could regulate intracellular amino acid levels in liver cells mechanistically through integrin β1. Amino acids were studied because they are the fundamental blocks for protein synthesis and metabolism, two vital functions of liver cells. Two ECM conditions, flat and microfibrous, were prepared and studied. In addition to characterizing cell growth, albumin production, urea synthesis, and cytochrome p450 activity, we found that the microfibrous ECM generally upregulated the intracellular amino acid levels. Further explorations showed that cells on the flat substrate expressed more integrin β1 than cells on the microfibers. Moreover, after partially blocking integrin β1 in cells on the flat substrate, the intracellular amino acid levels were restored, strongly supporting integrin β1 as the linking mechanism. This is the first study to report that a non-biological polymer matrix could regulate intracellular amino acid patterns through integrin. The results will help with future therapy development for liver diseases with ECM changes (e.g., fibrosis).
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Mousa SA, Hercbergs A, Lin HY, Keating KA, Davis PJ. Actions of Thyroid Hormones on Thyroid Cancers. Front Endocrinol (Lausanne) 2021; 12:691736. [PMID: 34234745 PMCID: PMC8255668 DOI: 10.3389/fendo.2021.691736] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Accepted: 05/31/2021] [Indexed: 12/04/2022] Open
Abstract
L-Thyroxine (T4) is the principal ligand of the thyroid hormone analogue receptor on the extracellular domain of integrin αvβ3. The integrin is overexpressed and activated in cancer cells, rapidly dividing endothelial cells, and platelets. The biologic result is that T4 at physiological concentration and without conversion to 3,3',5-triiodo-L-thyronine (T3) may stimulate cancer cell proliferation and cancer-relevant angiogenesis and platelet coagulation. Pro-thrombotic activity of T4 on platelets is postulated to support cancer-linked blood clotting and to contribute to tumor cell metastasis. We examine some of these findings as they may relate to cancers of the thyroid. Differentiated thyroid cancer cells respond to physiological levels of T4 with increased proliferation. Thus, the possibility exists that in patients with differentiated thyroid carcinomas in whom T4 administration and consequent endogenous thyrotropin suppression have failed to arrest the disease, T4 treatment may be stimulating tumor cell proliferation. In vitro studies have shown that tetraiodothyroacetic acid (tetrac), a derivative of T4, acts via the integrin to block T4 support of thyroid cancer and other solid tumor cells. Actions of T4 and tetrac or chemically modified tetrac modulate gene expression in thyroid cancer cells. T4 induces radioresistance via induction of a conformational change in the integrin in various cancer cells, although not yet established in thyroid cancer cells. The thyroid hormone receptor on integrin αvβ3 mediates a number of actions of T4 on differentiated thyroid cancer cells that support the biology of the cancer. Additional studies are required to determine whether T4 acts on thyroid cancer cells.
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Affiliation(s)
- Shaker A. Mousa
- Pharmaceutical Research Institute, Albany College of Pharmacy and Health Sciences, Rensselear, NY, United States
| | - Aleck Hercbergs
- Department of Radiation Oncology, The Cleveland Clinic, Cleveland, OH, United States
| | - Hung-Yun Lin
- Pharmaceutical Research Institute, Albany College of Pharmacy and Health Sciences, Rensselear, NY, United States
- PhD Program for Cancer Molecular Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan
- Taipei Cancer Center, Taipei Medical University, Taipei, Taiwan
- Traditional Herbal Medicine Research Center of Taipei Medical University Hospital, Taipei Medical University, Taipei, Taiwan
| | - Kelly A. Keating
- Pharmaceutical Research Institute, Albany College of Pharmacy and Health Sciences, Rensselear, NY, United States
| | - Paul J. Davis
- Pharmaceutical Research Institute, Albany College of Pharmacy and Health Sciences, Rensselear, NY, United States
- Department of Medicine, Albany Medical College, Albany, NY, United States
- *Correspondence: Paul J. Davis, ; orcid.org/0000-0002-6794-4917
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Huang T, Jones CG, Chung JH, Chen C. Microfibrous Extracellular Matrix Changes the Liver Hepatocyte Energy Metabolism via Integrins. ACS Biomater Sci Eng 2020; 6:5849-5856. [PMID: 33320566 DOI: 10.1021/acsbiomaterials.0c01311] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Cell line-based liver models are critical tools for liver-related studies. However, the conventional monolayer culture of hepatocytes, the most widely used in vitro model, does not have the extracellular matrix (ECM), which contributes to the three-dimensional (3D) arrangement of the hepatocytes in the liver. As a result, the metabolic properties of the hepatocytes in the monolayer tissue culture may not accurately reflect those of the hepatocytes in the liver. Here, we developed a modular platform for 3D hepatocyte cultures on fibrous ECMs produced by electrospinning, a technique that can turn a polymer solution to the micro/nanofibers and has been widely used to produce scaffolds for 3D cell cultures. Metabolomics quantitation by liquid chromatography-mass spectrometry (LC-MS) indicated that Huh7 hepatocytes grown in microfibers electrospun from silk fibroin exhibited reduced glycolysis and tricarboxylic acid (TCA) cycle, as compared to the cells cultured as a monolayer. Further mechanistic studies suggested that integrins were correlated to the ECM's effects. This is the first time to report how an ECM scaffold could affect the fundamental metabolism of the hepatocytes via integrins.
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Affiliation(s)
- Tianjiao Huang
- Laboratory of Obesity and Aging Research, Cardiovascular Branch, National Heart Lung and Blood Institute, National Institutes of Health, Bethesda, Maryland 20892, United States
| | - Curtis G Jones
- The Department of Chemistry and Biochemistry, University of Maryland, Baltimore County, Baltimore, Maryland 21250, United States
| | - Jay H Chung
- Laboratory of Obesity and Aging Research, Cardiovascular Branch, National Heart Lung and Blood Institute, National Institutes of Health, Bethesda, Maryland 20892, United States
| | - Chengpeng Chen
- The Department of Chemistry and Biochemistry, University of Maryland, Baltimore County, Baltimore, Maryland 21250, United States
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7
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Dalton GD, Carney ST, Marshburn JD, Norford DC, Howlett AC. CB 1 Cannabinoid Receptors Stimulate Gβγ-GRK2-Mediated FAK Phosphorylation at Tyrosine 925 to Regulate ERK Activation Involving Neuronal Focal Adhesions. Front Cell Neurosci 2020; 14:176. [PMID: 32655375 PMCID: PMC7324865 DOI: 10.3389/fncel.2020.00176] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Accepted: 05/22/2020] [Indexed: 12/12/2022] Open
Abstract
CB1 cannabinoid receptors (CB1) are abundantly expressed in the nervous system where they regulate focal adhesion kinase (FAK) and the mitogen-activated protein kinases (MAPK) extracellular signal-regulated kinase 1 and 2 (ERK1/2). However, the role of CB1-stimulated FAK 925 tyrosine phosphorylation (Tyr-P) in regulating ERK1/2 activation remains undefined. Here, immunoblotting analyses using antibodies against FAK phospho-Tyr 925 and ERK2 phospho-Tyr 204 demonstrated CB1-stimulated FAK 925 Tyr-P and ERK2 204 Tyr-P (0–5 min) which was followed by a decline in Tyr-P (5–20 min). CB1 stimulated FAK-Grb2 association and Ras-mediated ERK2 activation. The FAK inhibitors Y11 and PF 573228 abolished FAK 925 Tyr-P and partially inhibited ERK2 204 Tyr-P. FAK 925 Tyr-P and ERK2 204 Tyr-P were adhesion-dependent, required an intact actin cytoskeleton, and were mediated by integrins, Flk-1 vascular endothelial growth factor receptors, and epidermal growth factor receptors. FAK 925 Tyr-P and ERK2 204 Tyr-P were blocked by the Gβγ inhibitor gallein, a GRK2 inhibitor, and GRK2 siRNA silencing, suggesting Gβγ and GRK2 participate in FAK-mediated ERK2 activation. Together, these studies indicate FAK 925 Tyr-P occurs concurrently with CB1-stimulated ERK2 activation and requires the actin cytoskeleton and Gi/oβγ-GRK2-mediated cross-talk between CB1, integrins, and receptor tyrosine kinases (RTKs).
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Affiliation(s)
- George D Dalton
- Department of Physiology and Pharmacology, Wake Forest University School of Medicine, Winston-Salem, NC, United States
| | - Skyla T Carney
- Department of Biological and Biomedical Sciences, Julius L. Chambers Biomedical and Biotechnology Research Institute, North Carolina Central University, Durham, NC, United States
| | - Jamie D Marshburn
- Department of Biological and Biomedical Sciences, Julius L. Chambers Biomedical and Biotechnology Research Institute, North Carolina Central University, Durham, NC, United States
| | - Derek C Norford
- Department of Biological and Biomedical Sciences, Julius L. Chambers Biomedical and Biotechnology Research Institute, North Carolina Central University, Durham, NC, United States
| | - Allyn C Howlett
- Department of Physiology and Pharmacology, Wake Forest University School of Medicine, Winston-Salem, NC, United States
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8
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Young BM, Shankar K, Tho CK, Pellegrino AR, Heise RL. Laminin-driven Epac/Rap1 regulation of epithelial barriers on decellularized matrix. Acta Biomater 2019; 100:223-234. [PMID: 31593773 DOI: 10.1016/j.actbio.2019.10.009] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2019] [Revised: 10/03/2019] [Accepted: 10/03/2019] [Indexed: 12/28/2022]
Abstract
Decellularized tissues offer a unique tool for developing regenerative biomaterials or in vitro platforms for the study of cell-extracellular matrix (ECM) interactions. One main challenge associated with decellularized lung tissue is that ECM components can be stripped away or altered by the detergents used to remove cellular debris. Without characterizing the composition of lung decellularized ECM (dECM) and the cellular response caused by the altered composition, it is difficult to utilize dECM for regeneration and specifically, engineering the complexities of the alveolar-capillary barrier. This study takes steps towards uncovering if dECM must be enhanced with lost ECM proteins to achieve proper epithelial barrier formation. To achieve this, the epithelial barrier function was assessed on dECM coatings with and without the systematic addition of several key basement membrane proteins. After comparing barrier function on collagen I, fibronectin, laminin, and dECM in varying combinations as an in vitro coating, the alveolar epithelium exhibited superior barrier function when dECM was supplemented with laminin as evidenced by trans-epithelial electrical resistance (TEER) and permeability assays. Increased barrier resistance with laminin addition was associated with upregulation of Claudin-18, E-cadherin, and junction adhesion molecule (JAM)-A, and stabilization of zonula occludens (ZO)-1 at junction complexes. The Epac/Rap1 pathway was observed to play a role in the ECM-mediated barrier function determined by protein expression and Epac inhibition. These findings revealed potential ECM coatings and molecular therapeutic targets for improved regeneration with decellularized scaffolds. STATEMENT OF SIGNIFICANCE: Efforts to produce a transplantable organ-scale biomaterial for lung regeneration has not been entirely successful to date, due to incomplete cell-cell junction formation, ultimately leading to severe edema in vivo. To fully understand the process of alveolar junction formation on ECM-derived biomaterials, this research has characterized and tailored decellularized ECM (dECM) to mitigate reductions in barrier strength or cell attachment caused by abnormal ECM compositions or detergent damage to dECM. These results indicate that laminin-driven Epac signaling plays a vital role in the stabilization of the alveolar barrier. Addition of laminin or Epac agonists during alveolar regeneration can reduce epithelial permeability within bioengineered lungs.
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Affiliation(s)
- Bethany M Young
- Department of Biomedical Engineering, Virginia Commonwealth University, 800 E. Leigh St, Room 1071, Richmond, VA 23219, United States
| | - Keerthana Shankar
- Department of Biomedical Engineering, Virginia Commonwealth University, 800 E. Leigh St, Room 1071, Richmond, VA 23219, United States
| | - Cindy K Tho
- Department of Biomedical Engineering, Virginia Commonwealth University, 800 E. Leigh St, Room 1071, Richmond, VA 23219, United States
| | - Amanda R Pellegrino
- Department of Biomedical Engineering and Nursing, Duquesne University, 600 Forbes Ave, Pittsburg, Pennsylvania 15282, United States
| | - Rebecca L Heise
- Department of Biomedical Engineering, Virginia Commonwealth University, 800 E. Leigh St, Room 1071, Richmond, VA 23219, United States; Department of Physiology and Biophysics, Virginia Commonwealth University School of Medicine, 1101 East Marshall St, Richmond, Virginia 23298, United States.
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Saucerman JJ, Tan PM, Buchholz KS, McCulloch AD, Omens JH. Mechanical regulation of gene expression in cardiac myocytes and fibroblasts. Nat Rev Cardiol 2019; 16:361-378. [PMID: 30683889 PMCID: PMC6525041 DOI: 10.1038/s41569-019-0155-8] [Citation(s) in RCA: 110] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The intact heart undergoes complex and multiscale remodelling processes in response to altered mechanical cues. Remodelling of the myocardium is regulated by a combination of myocyte and non-myocyte responses to mechanosensitive pathways, which can alter gene expression and therefore function in these cells. Cellular mechanotransduction and its downstream effects on gene expression are initially compensatory mechanisms during adaptations to the altered mechanical environment, but under prolonged and abnormal loading conditions, they can become maladaptive, leading to impaired function and cardiac pathologies. In this Review, we summarize mechanoregulated pathways in cardiac myocytes and fibroblasts that lead to altered gene expression and cell remodelling under physiological and pathophysiological conditions. Developments in systems modelling of the networks that regulate gene expression in response to mechanical stimuli should improve integrative understanding of their roles in vivo and help to discover new combinations of drugs and device therapies targeting mechanosignalling in heart disease.
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Affiliation(s)
- Jeffrey J Saucerman
- Department of Biomedical Engineering, University of Virginia, Charlottesville, VA, USA
| | - Philip M Tan
- Department of Biomedical Engineering, University of Virginia, Charlottesville, VA, USA
| | - Kyle S Buchholz
- Departments of Bioengineering and Medicine, University of California San Diego, La Jolla, CA, USA
| | - Andrew D McCulloch
- Departments of Bioengineering and Medicine, University of California San Diego, La Jolla, CA, USA.
| | - Jeffrey H Omens
- Departments of Bioengineering and Medicine, University of California San Diego, La Jolla, CA, USA
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10
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Morshed A, Abbas AB, Hu J, Xu H. Shedding New Light on The Role of ανβ3 and α5β1 Integrins in Rheumatoid Arthritis. Molecules 2019; 24:E1537. [PMID: 31003546 PMCID: PMC6515208 DOI: 10.3390/molecules24081537] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Revised: 04/14/2019] [Accepted: 04/18/2019] [Indexed: 12/14/2022] Open
Abstract
ανβ3 and α5β1 are essential glycoproteins involved in the pathogenesis of rheumatoid arthritis (RA). Understanding of the role these integrins play in disease have been analyzed via description of cells-expressing ανβ3 and α5β1 and their mediators to trigger inflammation. ανβ3 and α5β1 facilitate cells-ECM and cell-cell communication, producing pro-inflammatory factors. Pro-inflammatory factors are essential for the building of undesirable new blood vessels termed angiogenesis which can further lead to destruction of bones and joints. Despite many attempts to target these glycoproteins, there are still some problems, therefore, there is still interest in understanding the synergistic role these integrins play in the pathogenesis of RA. The purpose of this review is to gain insights into the biological effects of ανβ3 and α5β1 in synovial tissues that are relevant to pathogenesis and therapy of RA.
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Affiliation(s)
- Arwa Morshed
- The Engineering Research Center of Synthetic Polypeptide Drug Discovery and Evaluation of Jiangsu Province, China Pharmaceutical University, Nanjing 210009, China.
| | - Abdul Baset Abbas
- The Engineering Research Center of Synthetic Polypeptide Drug Discovery and Evaluation of Jiangsu Province, China Pharmaceutical University, Nanjing 210009, China.
| | - Jialiang Hu
- The Engineering Research Center of Synthetic Polypeptide Drug Discovery and Evaluation of Jiangsu Province, China Pharmaceutical University, Nanjing 210009, China.
| | - Hanmei Xu
- The Engineering Research Center of Synthetic Polypeptide Drug Discovery and Evaluation of Jiangsu Province, China Pharmaceutical University, Nanjing 210009, China.
- Nanjing Anji Biotechnology Co. Ltd., Nanjing 210046, China.
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11
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Nikolajević Starčević J, Janić M, Šabovič M. Molecular Mechanisms Responsible for Diastolic Dysfunction in Diabetes Mellitus Patients. Int J Mol Sci 2019; 20:ijms20051197. [PMID: 30857271 PMCID: PMC6429211 DOI: 10.3390/ijms20051197] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2019] [Revised: 03/03/2019] [Accepted: 03/04/2019] [Indexed: 02/06/2023] Open
Abstract
In diabetic patients, cardiomyopathy is an important cause of heart failure, but its pathophysiology has not been completely understood thus far. Myocardial hypertrophy and diastolic dysfunction have been considered the hallmarks of diabetic cardiomyopathy (DCM), while systolic function is affected in the latter stages of the disease. In this article we propose the potential pathophysiological mechanisms responsible for myocardial hypertrophy and increased myocardial stiffness leading to diastolic dysfunction in this specific entity. According to our model, increased myocardial stiffness results from both cellular and extracellular matrix stiffness as well as cell–matrix interactions. Increased intrinsic cardiomyocyte stiffness is probably the most important contributor to myocardial stiffness. It results from the impairment in cardiomyocyte cytoskeleton. Several other mechanisms, specifically affected by diabetes, seem to also be significantly involved in myocardial stiffening, i.e., impairment in the myocardial nitric oxide (NO) pathway, coronary microvascular dysfunction, increased inflammation and oxidative stress, and myocardial sodium glucose cotransporter-2 (SGLT-2)-mediated effects. Better understanding of the complex pathophysiology of DCM suggests the possible value of drugs targeting the listed mechanisms. Antidiabetic drugs, NO-stimulating agents, anti-inflammatory agents, and SGLT-2 inhibitors are emerging as potential treatment options for DCM.
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Affiliation(s)
- Jovana Nikolajević Starčević
- Department of Vascular Diseases, University Medical Centre Ljubljana, Zaloška cesta 7; SI-1000 Ljubljana, Slovenia.
| | - Miodrag Janić
- Department of Vascular Diseases, University Medical Centre Ljubljana, Zaloška cesta 7; SI-1000 Ljubljana, Slovenia.
| | - Mišo Šabovič
- Department of Vascular Diseases, University Medical Centre Ljubljana, Zaloška cesta 7; SI-1000 Ljubljana, Slovenia.
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Choi C, Thi Thao Tran N, Van Ngu T, Park SW, Song MS, Kim SH, Bae YU, Ayudthaya PDN, Munir J, Kim E, Baek MJ, Song S, Ryu S, Nam KH. Promotion of tumor progression and cancer stemness by MUC15 in thyroid cancer via the GPCR/ERK and integrin-FAK signaling pathways. Oncogenesis 2018; 7:85. [PMID: 30420637 PMCID: PMC6232104 DOI: 10.1038/s41389-018-0094-y] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2018] [Revised: 09/10/2018] [Accepted: 10/03/2018] [Indexed: 12/21/2022] Open
Abstract
Thyroid cancer is the fifth most common cancer diagnosed in women worldwide. Notwithstanding advancements in the prognosis and treatment of thyroid cancer, 10–20% of thyroid cancer patients develops chemotherapeutic resistance and experience relapse. According to previous reports and TCGA database, MUC15 (MUCIN 15) upregulation is highly correlated with thyroid cancer progression. However, the role of MUC15 in tumor progression and metastasis is unclear. This study aimed to investigate factors mediating cancer stemness in thyroid cancer. MUC15 plays an important role in sphere formation, as an evident from the expression of stemness markers including SOX2, KLF4, ALDH1A3, and IL6. Furthermore, ectopic expression of MUC15 activated extracellular signal-regulated kinase (ERK) signaling via G-protein–coupled receptor (GPCR)/cyclic AMP (cAMP) and integrin/focal adhesion kinase pathways. Interestingly, ectopic expression of MUC15 did not affect RAF/mitogen-activated protein kinase kinase (MEK)-mediated ERK activation. The present findings may provide novel insights into the development of diagnostic, prognostic, and therapeutic applications of MUC15 in thyroid cancer.
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Affiliation(s)
- Cheolwon Choi
- Soonchunhyang Institute of Med-bioscience (SIMS), Soonchunhyang University, Cheonan, Korea
| | - Nguyen Thi Thao Tran
- Soonchunhyang Institute of Med-bioscience (SIMS), Soonchunhyang University, Cheonan, Korea
| | - Trinh Van Ngu
- Soonchunhyang Institute of Med-bioscience (SIMS), Soonchunhyang University, Cheonan, Korea
| | - Sae Woong Park
- Department of Microbiology & Immunology, Weill Cornell Medical College, New York, USA
| | - Min Suk Song
- Department of Life Sciences, Yeungnam University, Gyeongsan, Korea
| | - Sung Hyun Kim
- Department of Physiology, Kyung Hee University, School of Medicine, Seoul, Korea
| | - Yun-Ui Bae
- Soonchunhyang Institute of Med-bioscience (SIMS), Soonchunhyang University, Cheonan, Korea
| | | | - Javaria Munir
- Soonchunhyang Institute of Med-bioscience (SIMS), Soonchunhyang University, Cheonan, Korea
| | - Eunbit Kim
- Soonchunhyang Institute of Med-bioscience (SIMS), Soonchunhyang University, Cheonan, Korea
| | - Moo-Jun Baek
- Department of Surgery, College of Medicine, Soonchunhyang University, Chonan, Korea
| | - Sujung Song
- Soonchunhyang Institute of Med-bioscience (SIMS), Soonchunhyang University, Cheonan, Korea
| | - Seongho Ryu
- Soonchunhyang Institute of Med-bioscience (SIMS), Soonchunhyang University, Cheonan, Korea.
| | - Kee-Hyun Nam
- Department of Surgery, College of Medicine, Yonsei University, Seoul, Korea.
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Shen ZJ, Hu J, Kashi VP, Kelly EA, Denlinger LC, Lutchman K, McDonald JG, Jarjour NN, Malter JS. Epstein-Barr Virus-induced Gene 2 Mediates Allergen-induced Leukocyte Migration into Airways. Am J Respir Crit Care Med 2017; 195:1576-1585. [PMID: 28125291 DOI: 10.1164/rccm.201608-1580oc] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
RATIONALE Leukocyte recruitment to sites of allergic inflammation depends on the local production of priming cytokines, chemokines, and potentially other mediators. Previously, we showed that eosinophils (Eos) express numerous orphan G-protein-coupled receptors, including Epstein-Barr virus-induced gene 2 (EBI2). Despite its contribution to inflammatory diseases, the role of EBI2 in pulmonary eosinophilia is unknown. OBJECTIVES To determine whether oxysterol ligands for EBI2 are increased in asthma exacerbation, and if or how they promote Eos pulmonary migration. METHODS EBI2 ligands and pulmonary eosinophilia were measured in the bronchoalveolar lavage fluid from patients with mild asthma 48 hours after acute allergen challenge. In vitro, the ability of EBI2 ligands alone or in combination with IL-5 priming to induce the migration of human blood Eos was assessed. MEASUREMENTS AND MAIN RESULTS EBI2 was constitutively and stably expressed in peripheral blood Eos. Eos treated with the EBI2 ligands showed significantly increased transwell migration that was enhanced by priming with physiologic doses of IL-5. Migration was suppressed by inhibitors of the prolyl isomerase Pin1 or extracellular signal-regulated kinases (ERK) 1/2 or by pertussis toxin. EBI2 signaling activated Pin1 isomerase activity through a cascade that was sensitive to ERK inhibitors and pertussis toxin. The concentration of EBI2 ligands was significantly increased in the bronchoalveolar lavage fluid 48 hours after segmental allergen challenge and strongly correlated with the increased numbers of Eos, lymphocytes, and neutrophils in the airways. CONCLUSIONS Oxysterols are increased in inflamed airways after allergen challenge and, through G-protein subunit α, ERK, and Pin1 signaling, likely participate in the regulation of Eos migration into the lung in people with asthma.
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Affiliation(s)
| | - Jie Hu
- 1 Department of Pathology and
| | | | - Elizabeth A Kelly
- 2 Department of Medicine, Allergy, Pulmonary, and Critical Care Medicine Division, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin
| | - Loren C Denlinger
- 2 Department of Medicine, Allergy, Pulmonary, and Critical Care Medicine Division, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin
| | | | - Jeffrey G McDonald
- 3 Department of Molecular Genetics, University of Texas Southwestern Medical Center, Dallas, Texas; and
| | - Nizar N Jarjour
- 2 Department of Medicine, Allergy, Pulmonary, and Critical Care Medicine Division, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin
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14
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Qiu C, Liu W, Shi F, Fen M, Ren L, Qi H. Silencing of β1 integrin regulates airway remodeling by regulating the transcription of SOCE‑associated genes in asthmatic mice. Mol Med Rep 2017; 16:2645-2651. [PMID: 28656279 PMCID: PMC5547928 DOI: 10.3892/mmr.2017.6863] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2016] [Accepted: 04/27/2017] [Indexed: 01/22/2023] Open
Abstract
The incidence of asthma is increasing globally; however, current treatments are only able to cure a certain proportion of patients. There is an urgent need to develop novel therapies. β1 integrin serves a role in the pathophysiology of asthma through the development of airway remodeling. The aim of the present study was to investigate silencing of the β1 integrin gene in pre-clinical models of allergic asthma. BALB/c mice were sensitized with ovalbumin through intraperitoneal injection and repeated aerosolized ovalbumin. A short hairpin RNA of the β1 integrin gene was designed and transfected into mouse models of asthma in vivo, in order to evaluate whether silencing of the β1 integrin gene affects airway smooth muscle cell proliferation and inflammation by regulating the mRNA expression of store-operated Ca2+ entry (SOCE)-associated genes. Silencing the β1 integrin gene may downregulate β1 integrin mRNA while not statistically decreasing α-smooth muscle actin gene expression and airway smooth muscle thickness. β1 integrin silencing was able to downregulate the transcription of SOCE-associated genes to normal levels, including calcium release-activated calcium modulator 1 and short transient receptor potential channel member 1, but not stromal interaction molecule 1, in asthma. Silencing of the β1 integrin gene additionally maintained nuclear factor of activated T-cells cytoplasmic 1 gene expression, and inflammatory cytokines interleukin-4 and interferon-γ at normal levels. The results of the present study provide evidence to suggest that silencing of the β1 integrin gene may be of therapeutic benefit for patients with asthma.
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Affiliation(s)
- Chen Qiu
- Department of Respiratory Medicine, The Second Clinical College, Jinan University, Shenzhen, Guangdong 518001, P.R. China
| | - Wenwen Liu
- Department of Respiratory Medicine, The Second Clinical College, Jinan University, Shenzhen, Guangdong 518001, P.R. China
| | - Fei Shi
- Department of Respiratory Medicine, The Second Clinical College, Jinan University, Shenzhen, Guangdong 518001, P.R. China
| | - Mengjie Fen
- Department of Respiratory Medicine, The Second Clinical College, Jinan University, Shenzhen, Guangdong 518001, P.R. China
| | - Lili Ren
- Clinical Medical Research Center, The Second Clinical College, Jinan University, Shenzhen, Guangdong 518001, P.R. China
| | - Hui Qi
- Clinical Medical Research Center, The Second Clinical College, Jinan University, Shenzhen, Guangdong 518001, P.R. China
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15
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Herum KM, Lunde IG, McCulloch AD, Christensen G. The Soft- and Hard-Heartedness of Cardiac Fibroblasts: Mechanotransduction Signaling Pathways in Fibrosis of the Heart. J Clin Med 2017; 6:jcm6050053. [PMID: 28534817 PMCID: PMC5447944 DOI: 10.3390/jcm6050053] [Citation(s) in RCA: 113] [Impact Index Per Article: 16.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2017] [Revised: 05/04/2017] [Accepted: 05/08/2017] [Indexed: 12/27/2022] Open
Abstract
Cardiac fibrosis, the excessive accumulation of extracellular matrix (ECM), remains an unresolved problem in most forms of heart disease. In order to be successful in preventing, attenuating or reversing cardiac fibrosis, it is essential to understand the processes leading to ECM production and accumulation. Cardiac fibroblasts are the main producers of cardiac ECM, and harbor great phenotypic plasticity. They are activated by the disease-associated changes in mechanical properties of the heart, including stretch and increased tissue stiffness. Despite much remaining unknown, an interesting body of evidence exists on how mechanical forces are translated into transcriptional responses important for determination of fibroblast phenotype and production of ECM constituents. Such mechanotransduction can occur at multiple cellular locations including the plasma membrane, cytoskeleton and nucleus. Moreover, the ECM functions as a reservoir of pro-fibrotic signaling molecules that can be released upon mechanical stress. We here review the current status of knowledge of mechanotransduction signaling pathways in cardiac fibroblasts that culminate in pro-fibrotic gene expression.
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Affiliation(s)
- Kate M Herum
- Institute for Experimental Medical Research, Oslo University Hospital and University of Oslo, 0450 Oslo, Norway.
- Center for Heart Failure Research, Oslo University Hospital, 0450 Oslo, Norway.
- Department of Bioengineering, University of California San Diego, La Jolla, CA 92093, USA.
| | - Ida G Lunde
- Institute for Experimental Medical Research, Oslo University Hospital and University of Oslo, 0450 Oslo, Norway.
- Center for Heart Failure Research, Oslo University Hospital, 0450 Oslo, Norway.
| | - Andrew D McCulloch
- Department of Bioengineering, University of California San Diego, La Jolla, CA 92093, USA.
- Department of Medicine, University of California San Diego, La Jolla, CA 92093, USA.
| | - Geir Christensen
- Institute for Experimental Medical Research, Oslo University Hospital and University of Oslo, 0450 Oslo, Norway.
- Center for Heart Failure Research, Oslo University Hospital, 0450 Oslo, Norway.
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16
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Kolar GR, Grote SM, Yosten GLC. Targeting orphan G protein-coupled receptors for the treatment of diabetes and its complications: C-peptide and GPR146. J Intern Med 2017; 281:25-40. [PMID: 27306986 PMCID: PMC6092955 DOI: 10.1111/joim.12528] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
G protein-coupled receptors (GPCRs) are the most abundant receptor family encoded by the human genome and are the targets of a high percentage of drugs currently in use or in clinical trials for the treatment of diseases such as diabetes and its associated complications. Thus, orphan GPCRs, for which the ligand is unknown, represent an important untapped source of therapeutic potential for the treatment of many diseases. We have identified the previously orphan GPCR, GPR146, as the putative receptor of proinsulin C-peptide, which may prove to be an effective treatment for diabetes-associated complications. For example, we have found a potential role of C-peptide and GPR146 in regulating the function of the retinal pigment epithelium, a monolayer of cells in the retina that serves as part of the blood-retinal barrier and is disrupted in diabetic macular oedema. However, C-peptide signalling in this cell type appears to depend at least in part on extracellular glucose concentration and its interaction with insulin. In this review, we discuss the therapeutic potential of orphan GPCRs with a special focus on C-peptide and GPR146, including past and current strategies used to 'deorphanize' this diverse family of receptors, past successes and the inherent difficulties of this process.
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Affiliation(s)
- G R Kolar
- Department of Pathology, St Louis University School of Medicine, St Louis, MO, USA
| | - S M Grote
- Department of Pharmacology and Physiology, St Louis University School of Medicine, St Louis, MO, USA
| | - G L C Yosten
- Department of Pharmacology and Physiology, St Louis University School of Medicine, St Louis, MO, USA
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17
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PONNUSAMY SURIYAN, LATTMANN ERIC, LATTMANN PORNTHIP, THIYAGARAJAN THIRUMAGAL, PADINJARETHALAKAL BALARAMN, NARAYANAN RAMESH. Novel, isoform-selective, cholecystokinin A receptor antagonist inhibits colon and pancreatic cancers in preclinical models through novel mechanism of action. Oncol Rep 2016; 35:2097-106. [DOI: 10.3892/or.2016.4588] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2015] [Accepted: 12/12/2015] [Indexed: 11/06/2022] Open
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18
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Dalton GD, Peterson LJ, Howlett AC. CB₁ cannabinoid receptors promote maximal FAK catalytic activity by stimulating cooperative signaling between receptor tyrosine kinases and integrins in neuronal cells. Cell Signal 2013; 25:1665-77. [PMID: 23571270 PMCID: PMC4165595 DOI: 10.1016/j.cellsig.2013.03.020] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2012] [Revised: 03/16/2013] [Accepted: 03/26/2013] [Indexed: 01/28/2023]
Abstract
Tyrosine phosphorylation (Tyr-P) of focal adhesion kinase (FAK) regulates FAK activation. Phosphorylated FAK Tyr 397 binds Src family kinases (Src), which in turn directly phosphorylate FAK Tyr 576/577 to produce maximal FAK enzymatic activity. CB₁ cannabinoid receptors (CB₁) are abundantly expressed in the nervous system and influence FAK activation by presently unknown mechanisms. The current investigation determined that CB₁-stimulated maximal FAK catalytic activity is mediated by Gi/o proteins in N18TG2 neuronal cells, and that G12/13 regulation of Rac1 and RhoA occurs concomitantly. Immunoblotting analyses using antibodies against FAK phospho-Tyr 397 and phospho-Tyr 576/577 demonstrated that the time-course of CB₁-stimulated FAK 576/577 Tyr-P occurred in three phases: Phase I (0-2 min) maximal Tyr-P, Phase II (5-20 min) rapid decline in Tyr-P, and Phase III (>20 min) plateau in Tyr-P at submaximal levels. In contrast, FAK 397 Tyr-P was monophasic and significantly lower in magnitude. FAK 397 Tyr-P and Phase I FAK 576/577 Tyr-P involved protein tyrosine phosphatase (PTP1B and Shp1/Shp2)-mediated Src activation, Protein Kinase A (PKA) inhibition, and integrin activation. Phase I maximal FAK 576/577 Tyr-P also required cooperative signaling between receptor tyrosine kinases (RTKs) and integrins. The integrin antagonist RGDS peptide, Flk-1 vascular endothelial growth factor receptor (VEGFR) antagonist SU5416, and epidermal growth factor receptor (EGFR) antagonist AG 1478 blocked Phase I FAK 576/577 Tyr-P. CB₁ agonists failed to stimulate FAK Tyr-P in the absence of integrin activation upon suspension in serum-free culture media. In contrast, cells grown on the integrin ligands fibronectin and laminin displayed increased FAK 576/577 Tyr-P that was augmented by CB₁ agonists and blocked by the Src inhibitor PP2 and Flk-1 VEGFR antagonist SU5416. Taken together, these studies have identified a complex integrative pathway utilized by CB₁ to stimulate maximal FAK 576/577 Tyr-P in neuronal cells.
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MESH Headings
- Animals
- Benzoxazines/pharmacology
- Cell Line, Tumor
- ErbB Receptors/antagonists & inhibitors
- ErbB Receptors/metabolism
- Fibronectins/pharmacology
- Focal Adhesion Protein-Tyrosine Kinases/antagonists & inhibitors
- Focal Adhesion Protein-Tyrosine Kinases/metabolism
- Integrins/antagonists & inhibitors
- Integrins/genetics
- Integrins/metabolism
- Kinetics
- Laminin/pharmacology
- Mice
- Morpholines/pharmacology
- Naphthalenes/pharmacology
- Neurons/cytology
- Neurons/metabolism
- Oligopeptides/pharmacology
- Pertussis Toxin/pharmacology
- Phosphorylation/drug effects
- Protein Tyrosine Phosphatase, Non-Receptor Type 1/antagonists & inhibitors
- Protein Tyrosine Phosphatase, Non-Receptor Type 1/metabolism
- Protein Tyrosine Phosphatase, Non-Receptor Type 11/antagonists & inhibitors
- Protein Tyrosine Phosphatase, Non-Receptor Type 11/metabolism
- Protein Tyrosine Phosphatase, Non-Receptor Type 6/antagonists & inhibitors
- Protein Tyrosine Phosphatase, Non-Receptor Type 6/metabolism
- RNA Interference
- RNA, Small Interfering/metabolism
- Receptor, Cannabinoid, CB1/agonists
- Receptor, Cannabinoid, CB1/metabolism
- Signal Transduction/drug effects
- Time Factors
- Vascular Endothelial Growth Factor Receptor-2/antagonists & inhibitors
- Vascular Endothelial Growth Factor Receptor-2/metabolism
- src-Family Kinases/antagonists & inhibitors
- src-Family Kinases/metabolism
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Affiliation(s)
- George D Dalton
- Department of Physiology and Pharmacology, Wake Forest University School of Medicine, Winston-Salem, NC 27157, USA.
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