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Zhai Z, Zhang Y, Liang X, Li J, Chen Z, Zhang J, Li W, Wang T, He Q, Li F, Meng Q, Cao J, Su Z, Chang Y, Chen X, Hong A. Acesulfame potassium triggers inflammatory bowel disease via the inhibition of focal adhesion pathway. JOURNAL OF HAZARDOUS MATERIALS 2024; 476:134901. [PMID: 38909462 DOI: 10.1016/j.jhazmat.2024.134901] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/26/2023] [Revised: 06/04/2024] [Accepted: 06/12/2024] [Indexed: 06/25/2024]
Abstract
Acesulfame potassium (ACK) was generally regarded as innocuous and extensively ingested. Nevertheless, ACK has recently gained attention as a burgeoning pollutant that has the potential to induce a range of health hazards, particularly to the digestive system. Herein, we uncover that ACK initiates inflammatory bowel disease (IBD) in mice and zebrafish, as indicated by the aggregation of macrophages in the intestine and the inhibition of intestinal mucus secretion. Transcriptome analysis of mice and zebrafish guts revealed that exposure to ACK typically impacts the cell cycle, focal adhesion, and PI3K-Akt signaling pathways. Using pharmacological approaches, we demonstrate that the PI3K-Akt signaling pathway and the generation of reactive oxygen species (ROS) triggered by cell division are not significant factors in the initiation of IBD caused by ACK. Remarkably, inhibition of the focal adhesion pathway is responsible for the IBD onset induced by ACK. Our results indicate the detrimental impacts and possible underlying mechanisms of ACK on the gastrointestinal system and provide insights for making informed choices about everyday dietary habits.
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Affiliation(s)
- Zhaodong Zhai
- Department of Cell Biology, College of Life Science and Technology, Jinan University, Jinan University, Guangzhou 510632, China; National Engineering Research Center of Genetic Medicine, Guangzhou 510632, China; State Key Laboratory of Bioactive Molecules and Druggability Assessment, Jinan University, Guangzhou 510632, China; Guangdong Provincial Key Laboratory of Bioengineering Medicine, Guangzhou 510632, China; Guangdong Provincial Biotechnology Drug & Engineering Technology Research Center, Jinan University, Guangzhou 510632, China
| | - Yibo Zhang
- Department of Cell Biology, College of Life Science and Technology, Jinan University, Jinan University, Guangzhou 510632, China; National Engineering Research Center of Genetic Medicine, Guangzhou 510632, China; State Key Laboratory of Bioactive Molecules and Druggability Assessment, Jinan University, Guangzhou 510632, China; Guangdong Provincial Key Laboratory of Bioengineering Medicine, Guangzhou 510632, China; Guangdong Provincial Biotechnology Drug & Engineering Technology Research Center, Jinan University, Guangzhou 510632, China.
| | - Xujing Liang
- Department of Infectious Disease, The First Affiliated Hospital of Jinan University, Guangzhou 510630, China
| | - Jingsheng Li
- Department of Cell Biology, College of Life Science and Technology, Jinan University, Jinan University, Guangzhou 510632, China; National Engineering Research Center of Genetic Medicine, Guangzhou 510632, China; State Key Laboratory of Bioactive Molecules and Druggability Assessment, Jinan University, Guangzhou 510632, China; Guangdong Provincial Key Laboratory of Bioengineering Medicine, Guangzhou 510632, China; Guangdong Provincial Biotechnology Drug & Engineering Technology Research Center, Jinan University, Guangzhou 510632, China
| | - Zhiqi Chen
- Department of Cell Biology, College of Life Science and Technology, Jinan University, Jinan University, Guangzhou 510632, China; National Engineering Research Center of Genetic Medicine, Guangzhou 510632, China; State Key Laboratory of Bioactive Molecules and Druggability Assessment, Jinan University, Guangzhou 510632, China; Guangdong Provincial Key Laboratory of Bioengineering Medicine, Guangzhou 510632, China; Guangdong Provincial Biotechnology Drug & Engineering Technology Research Center, Jinan University, Guangzhou 510632, China
| | - Jianbin Zhang
- Department of Cell Biology, College of Life Science and Technology, Jinan University, Jinan University, Guangzhou 510632, China; National Engineering Research Center of Genetic Medicine, Guangzhou 510632, China; State Key Laboratory of Bioactive Molecules and Druggability Assessment, Jinan University, Guangzhou 510632, China; Guangdong Provincial Key Laboratory of Bioengineering Medicine, Guangzhou 510632, China; Guangdong Provincial Biotechnology Drug & Engineering Technology Research Center, Jinan University, Guangzhou 510632, China
| | - WeiCai Li
- Department of Cell Biology, College of Life Science and Technology, Jinan University, Jinan University, Guangzhou 510632, China; National Engineering Research Center of Genetic Medicine, Guangzhou 510632, China; State Key Laboratory of Bioactive Molecules and Druggability Assessment, Jinan University, Guangzhou 510632, China; Guangdong Provincial Key Laboratory of Bioengineering Medicine, Guangzhou 510632, China; Guangdong Provincial Biotechnology Drug & Engineering Technology Research Center, Jinan University, Guangzhou 510632, China
| | - Teng Wang
- Department of Cell Biology, College of Life Science and Technology, Jinan University, Jinan University, Guangzhou 510632, China; National Engineering Research Center of Genetic Medicine, Guangzhou 510632, China; State Key Laboratory of Bioactive Molecules and Druggability Assessment, Jinan University, Guangzhou 510632, China; Guangdong Provincial Key Laboratory of Bioengineering Medicine, Guangzhou 510632, China; Guangdong Provincial Biotechnology Drug & Engineering Technology Research Center, Jinan University, Guangzhou 510632, China
| | - Qianyi He
- Department of Cell Biology, College of Life Science and Technology, Jinan University, Jinan University, Guangzhou 510632, China; National Engineering Research Center of Genetic Medicine, Guangzhou 510632, China; State Key Laboratory of Bioactive Molecules and Druggability Assessment, Jinan University, Guangzhou 510632, China; Guangdong Provincial Key Laboratory of Bioengineering Medicine, Guangzhou 510632, China; Guangdong Provincial Biotechnology Drug & Engineering Technology Research Center, Jinan University, Guangzhou 510632, China
| | - Fu Li
- Department of Cell Biology, College of Life Science and Technology, Jinan University, Jinan University, Guangzhou 510632, China; National Engineering Research Center of Genetic Medicine, Guangzhou 510632, China; State Key Laboratory of Bioactive Molecules and Druggability Assessment, Jinan University, Guangzhou 510632, China; Guangdong Provincial Key Laboratory of Bioengineering Medicine, Guangzhou 510632, China; Guangdong Provincial Biotechnology Drug & Engineering Technology Research Center, Jinan University, Guangzhou 510632, China
| | - Qilin Meng
- Department of Cell Biology, College of Life Science and Technology, Jinan University, Jinan University, Guangzhou 510632, China; National Engineering Research Center of Genetic Medicine, Guangzhou 510632, China; State Key Laboratory of Bioactive Molecules and Druggability Assessment, Jinan University, Guangzhou 510632, China; Guangdong Provincial Key Laboratory of Bioengineering Medicine, Guangzhou 510632, China; Guangdong Provincial Biotechnology Drug & Engineering Technology Research Center, Jinan University, Guangzhou 510632, China
| | - Jieqiong Cao
- Department of Cell Biology, College of Life Science and Technology, Jinan University, Jinan University, Guangzhou 510632, China; National Engineering Research Center of Genetic Medicine, Guangzhou 510632, China; State Key Laboratory of Bioactive Molecules and Druggability Assessment, Jinan University, Guangzhou 510632, China; Guangdong Provincial Key Laboratory of Bioengineering Medicine, Guangzhou 510632, China; Guangdong Provincial Biotechnology Drug & Engineering Technology Research Center, Jinan University, Guangzhou 510632, China; Department of Radiology, The First Affiliated Hospital of Jinan University, Guangzhou 510630, China
| | - Zijian Su
- Department of Cell Biology, College of Life Science and Technology, Jinan University, Jinan University, Guangzhou 510632, China; National Engineering Research Center of Genetic Medicine, Guangzhou 510632, China; State Key Laboratory of Bioactive Molecules and Druggability Assessment, Jinan University, Guangzhou 510632, China; Guangdong Provincial Key Laboratory of Bioengineering Medicine, Guangzhou 510632, China; Guangdong Provincial Biotechnology Drug & Engineering Technology Research Center, Jinan University, Guangzhou 510632, China
| | - Yiming Chang
- Department of Cell Biology, College of Life Science and Technology, Jinan University, Jinan University, Guangzhou 510632, China; National Engineering Research Center of Genetic Medicine, Guangzhou 510632, China; State Key Laboratory of Bioactive Molecules and Druggability Assessment, Jinan University, Guangzhou 510632, China; Guangdong Provincial Key Laboratory of Bioengineering Medicine, Guangzhou 510632, China; Guangdong Provincial Biotechnology Drug & Engineering Technology Research Center, Jinan University, Guangzhou 510632, China; Department of Radiology, The First Affiliated Hospital of Jinan University, Guangzhou 510630, China
| | - Xiaojia Chen
- Department of Cell Biology, College of Life Science and Technology, Jinan University, Jinan University, Guangzhou 510632, China; National Engineering Research Center of Genetic Medicine, Guangzhou 510632, China; State Key Laboratory of Bioactive Molecules and Druggability Assessment, Jinan University, Guangzhou 510632, China; Guangdong Provincial Key Laboratory of Bioengineering Medicine, Guangzhou 510632, China; Guangdong Provincial Biotechnology Drug & Engineering Technology Research Center, Jinan University, Guangzhou 510632, China; MOE Key Laboratory of Tumor Molecular Biology, Jinan University, Guangzhou, China.
| | - An Hong
- Department of Cell Biology, College of Life Science and Technology, Jinan University, Jinan University, Guangzhou 510632, China; National Engineering Research Center of Genetic Medicine, Guangzhou 510632, China; State Key Laboratory of Bioactive Molecules and Druggability Assessment, Jinan University, Guangzhou 510632, China; Guangdong Provincial Key Laboratory of Bioengineering Medicine, Guangzhou 510632, China; Guangdong Provincial Biotechnology Drug & Engineering Technology Research Center, Jinan University, Guangzhou 510632, China.
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Lee CJ, Jang TY, Kim JH, Lim S, Lee S, Nam JS. The dysadherin/FAK axis promotes individual cell migration in colon cancer. Int J Biol Sci 2024; 20:2356-2369. [PMID: 38725858 PMCID: PMC11077383 DOI: 10.7150/ijbs.86699] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Accepted: 03/29/2024] [Indexed: 05/12/2024] Open
Abstract
Dysregulation of cancer cell motility is a key driver of invasion and metastasis. High dysadherin expression in cancer cells is correlated with invasion and metastasis. Here, we found the molecular mechanism by which dysadherin regulates the migration and invasion of colon cancer (CC). Comprehensive analysis using single-cell RNA sequencing data from CC patients revealed that high dysadherin expression in cells is linked to cell migration-related gene signatures. We confirmed that the deletion of dysadherin in tumor cells hindered local invasion and distant migration using in vivo tumor models. In this context, by performing cell morphological analysis, we found that aberrant cell migration resulted from impaired actin dynamics, focal adhesion turnover and protrusive structure formation upon dysadherin expression. Mechanistically, the activation of focal adhesion kinase (FAK) was observed in dysadherin-enriched cells. The dysadherin/FAK axis enhanced cell migration and invasion by activating the FAK downstream cascade, which includes the Rho family of small GTPases. Overall, this study illuminates the role of dysadherin in modulating cancer cell migration by forcing actin dynamics and protrusive structure formation via FAK signaling, indicating that targeting dysadherin may be a potential therapeutic strategy for CC patients.
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Affiliation(s)
| | | | | | | | | | - Jeong-Seok Nam
- School of Life Sciences, Gwangju Institute of Science and Technology, Gwangju 61005, Republic of Korea
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Li S, Wu H, Wang F, Kong L, Yu Y, Zuo R, Zhao H, Xu J, Kang Q. Enhanced Bone Regeneration through Regulation of Mechanoresponsive FAK-ERK1/2 Signaling by ZINC40099027 during Distraction Osteogenesis. Int J Med Sci 2024; 21:137-150. [PMID: 38164350 PMCID: PMC10750334 DOI: 10.7150/ijms.88298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Accepted: 10/21/2023] [Indexed: 01/03/2024] Open
Abstract
Background: Focal adhesion kinase (FAK) is activated by mechanical stimulation and plays a vital role in distraction osteogenesis (DO), a well-established but lengthy procedure for repairing large bone defects. Both angiogenesis and osteogenesis contribute to bone regeneration during DO. However, the effects of ZINC40099027 (ZN27), a potent FAK activator, on angiogenesis, osteogenesis, and bone regeneration in DO remain unknown. Methods: The angiogenic potential of human umbilical vein endothelial cells (HUVECs) was evaluated using transwell migration and tube formation assays. The osteogenic activity of bone marrow mesenchymal stem cells (BMSCs) was assessed using alkaline phosphatase (ALP) and alizarin red s (ARS) staining. Additionally, quantitative real-time polymerase chain reaction (qRT-PCR), western blot, and immunofluorescence staining were used to assay angiogenic markers, osteogenic markers, and FAK-extracellular signal-regulated kinase 1/2 (ERK1/2) signaling. In vivo, a rat tibia DO model was established to verify the effects of ZN27 on neovascularization and bone regeneration using radiological and histological analyses. Results: ZN27 promoted the migration and angiogenesis of HUVECs. Additionally, ZN27 facilitated the osteogenic differentiation of BMSCs, as revealed by increased ALP activity, calcium deposition, and expression of osteogenesis-specific markers. The ERK1/2-specific inhibitor PD98059 significantly hindered the effects of ZN27, suggesting the participation of FAK-ERK1/2 signaling in ZN27-enhanced angiogenesis and osteogenesis. As indicated by improved radiological and histological features, ZN27 induced active angiogenesis within the distraction area and accelerated bone regeneration in a rat DO model. Conclusion: Our results show that ZN27 targets FAK-ERK1/2 signaling to stimulate both angiogenesis and osteogenesis, and ZN27 accelerates bone regeneration in DO, suggesting the therapeutic potential of ZN27 for repairing large bone defects in the mechanobiological environment during DO.
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Affiliation(s)
- Shanyu Li
- Department of Orthopedics, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, PR China
| | - Hongxiao Wu
- Department of Orthopedics, Dongying People's Hospital, Dongying, Shandong, PR China
| | - Feng Wang
- Department of Orthopedics, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, PR China
| | - Lingchi Kong
- Department of Orthopedics, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, PR China
| | - Yifan Yu
- Department of Orthopedics, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, PR China
| | - Rongtai Zuo
- Department of Orthopedics, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, PR China
| | - Haoyu Zhao
- Department of Orthopedics, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, PR China
| | - Jia Xu
- Department of Orthopedics, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, PR China
| | - Qinglin Kang
- Department of Orthopedics, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, PR China
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Steinberg T, Dieterle MP, Ramminger I, Klein C, Brossette J, Husari A, Tomakidi P. On the Value of In Vitro Cell Systems for Mechanobiology from the Perspective of Yes-Associated Protein/Transcriptional Co-Activator with a PDZ-Binding Motif and Focal Adhesion Kinase and Their Involvement in Wound Healing, Cancer, Aging, and Senescence. Int J Mol Sci 2023; 24:12677. [PMID: 37628858 PMCID: PMC10454169 DOI: 10.3390/ijms241612677] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 07/21/2023] [Accepted: 07/26/2023] [Indexed: 08/27/2023] Open
Abstract
Mechanobiology comprises how cells perceive different mechanical stimuli and integrate them into a process called mechanotransduction; therefore, the related mechanosignaling cascades are generally important for biomedical research. The ongoing discovery of key molecules and the subsequent elucidation of their roles in mechanobiology are fundamental to understanding cell responses and tissue conditions, such as homeostasis, aging, senescence, wound healing, and cancer. Regarding the available literature on these topics, it becomes abundantly clear that in vitro cell systems from different species and tissues have been and are extremely valuable tools for enabling the discovery and functional elucidation of key mechanobiological players. Therefore, this review aims to discuss the significant contributions of in vitro cell systems to the identification and characterization of three such key players using the selected examples of yes-associated protein (YAP), its paralog transcriptional co-activator with a PDZ-binding motif (TAZ), and focal adhesion kinase (FAK) and their involvement in wound healing, cancer, aging, and senescence. In addition, the reader is given suggestions as to which future prospects emerge from the in vitro studies discussed herein and which research questions still remain open.
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Affiliation(s)
- Thorsten Steinberg
- Center for Dental Medicine, Division of Oral Biotechnology, Medical Center—University of Freiburg, Faculty of Medicine, University of Freiburg, Hugstetterstr. 55, 79106 Freiburg, Germany
| | - Martin Philipp Dieterle
- Center for Dental Medicine, Division of Oral Biotechnology, Medical Center—University of Freiburg, Faculty of Medicine, University of Freiburg, Hugstetterstr. 55, 79106 Freiburg, Germany
| | - Imke Ramminger
- Center for Dental Medicine, Division of Oral Biotechnology, Medical Center—University of Freiburg, Faculty of Medicine, University of Freiburg, Hugstetterstr. 55, 79106 Freiburg, Germany
- Faculty of Biology, University of Freiburg, Schaenzlestr. 1, 79104 Freiburg, Germany
| | - Charlotte Klein
- Center for Dental Medicine, Division of Oral Biotechnology, Medical Center—University of Freiburg, Faculty of Medicine, University of Freiburg, Hugstetterstr. 55, 79106 Freiburg, Germany
| | - Julie Brossette
- Center for Dental Medicine, Division of Oral Biotechnology, Medical Center—University of Freiburg, Faculty of Medicine, University of Freiburg, Hugstetterstr. 55, 79106 Freiburg, Germany
- Faculty of Biology, University of Freiburg, Schaenzlestr. 1, 79104 Freiburg, Germany
| | - Ayman Husari
- Center for Dental Medicine, Department of Orthodontics, Medical Center—University of Freiburg, Faculty of Medicine, University of Freiburg, Hugstetterstr. 55, 79106 Freiburg, Germany
| | - Pascal Tomakidi
- Center for Dental Medicine, Division of Oral Biotechnology, Medical Center—University of Freiburg, Faculty of Medicine, University of Freiburg, Hugstetterstr. 55, 79106 Freiburg, Germany
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Shaughness MC, Pierron N, Smith AN, Byrnes KR. The Integrin Pathway Partially Mediates Stretch-Induced Deficits in Primary Rat Microglia. Mol Neurobiol 2023; 60:3396-3412. [PMID: 36856961 DOI: 10.1007/s12035-023-03291-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Accepted: 02/21/2023] [Indexed: 03/02/2023]
Abstract
Stretch-injured microglia display significantly altered morphology, function and inflammatory-associated gene expression when cultured on a synthetic fibronectin substrate. However, the mechanism by which stretch induces these changes is unknown. Integrins, such as α5β1, mediate microglial attachment to fibronectin via the RGD binding peptide; following integrin ligation the integrin-associated signaling enzyme, focal adhesion kinase (FAK), autophosphorylates tyrosine residue 397 and mediates multiple downstream cellular processes. We therefore hypothesize that blocking the RGD binding/integrin pathway with a commercially available RGD peptide will mimic the stretch-induced morphological alterations and functional deficits in microglia. Further, we hypothesize that upregulation of stretch-inhibited downstream integrin signaling will reverse these effects. Using primary rat microglia, we tested the effects of RGD binding peptide and a FAK activator on cellular function and structure and response to stretch-injury. Similar to injured cells, RGD peptide administration significantly decreases media nitric oxide (NO) levels and iNOS expression and induced morphological alterations and migratory deficits. While stretch-injury and RGD peptide administration decreased phosphorylation of the tyrosine 397 residue on FAK, 20 nM of ZINC 40099027, an activator specific to the tyrosine 397 residue, rescued the stretch-induced decrease in FAK phosphorylation and ameliorated the injury-induced decrease in media NO levels, iNOS expression and inflammatory associated gene expression. Additionally, treatment alleviated morphological changes observed after stretch-injury and restored normal migratory behavior to control levels. Taken together, these data suggest that the integrin/FAK pathway partially mediates the stretch-injured phenotype in microglia, and may serve as a pathway to modulate microglial responses.
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Affiliation(s)
- Michael C Shaughness
- Neuroscience Program, Uniformed Services University of the Health Sciences, 4301 Jones Bridge Rd., Bethesda, MD, 20814, USA.,Operational and Undersea Medicine Directorate (OUMD), En Route & Critical Care Department (ECD), Naval Medical Research Center (NMRC), Silver Spring, MD, USA
| | - Nathan Pierron
- F.E. Hébert School of Medicine, Uniformed Services University of the Health Sciences, Bethesda, MD, USA
| | - Austin N Smith
- Neuroscience Program, Uniformed Services University of the Health Sciences, 4301 Jones Bridge Rd., Bethesda, MD, 20814, USA
| | - Kimberly R Byrnes
- Neuroscience Program, Uniformed Services University of the Health Sciences, 4301 Jones Bridge Rd., Bethesda, MD, 20814, USA. .,Department of Anatomy, Physiology and Genetics, Uniformed Services University of the Health Sciences, Bethesda, MD, USA.
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Szeto ACH, Ferreira ACF, Mannion J, Clark PA, Sivasubramaniam M, Heycock MWD, Crisp A, Jolin HE, Kozik P, Knolle MD, McKenzie ANJ. An αvβ3 integrin checkpoint is critical for efficient T H2 cell cytokine polarization and potentiation of antigen-specific immunity. Nat Immunol 2023; 24:123-135. [PMID: 36550322 DOI: 10.1038/s41590-022-01378-w] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Accepted: 11/03/2022] [Indexed: 12/24/2022]
Abstract
Naive CD4+ T lymphocytes initially undergo antigen-specific activation to promote a broad-spectrum response before adopting bespoke cytokine expression profiles shaped by intercellular microenvironmental cues, resulting in pathogen-focused modular cytokine responses. Interleukin (IL)-4-induced Gata3 upregulation is important for the helper type 2 T cell (TH2 cell) polarization associated with anti-helminth immunity and misdirected allergic inflammation. Whether additional microenvironmental factors participate is unclear. Using whole mouse-genome CRISPR-Cas9 screens, we discovered a previously unappreciated role for αvβ3 integrin in TH2 cell differentiation. Low-level αvβ3 expression by naive CD4+ T cells contributed to pan-T cell activation by promoting T-T cell clustering and IL-2/CD25/STAT5 signaling. Subsequently, IL-4/Gata3-induced selective upregulation of αvβ3 licensed intercellular αvβ3-Thy1 interactions among TH2 cells, enhanced mammalian target of rapamycin (mTOR) signaling, supported differentiation and promoted IL-5/IL-13 production. In mice, αvβ3 was required for efficient, allergen-driven, antigen-specific lung TH2 cell responses. Thus, αvβ3-expressing TH2 cells form multicellular factories to propagate and amplify TH2 cell responses.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | - Martin D Knolle
- MRC Laboratory of Molecular Biology, Cambridge, UK.,Cambridge University Hospitals, Cambridge, UK
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Lee CS, Zhai Y, Shang R, Wong T, Mattison AJ, Cen HH, Johnson JD, Vlodavsky I, Hussein B, Rodrigues B. Flow-Induced Secretion of Endothelial Heparanase Regulates Cardiac Lipoprotein Lipase and Changes Following Diabetes. J Am Heart Assoc 2022; 11:e027958. [PMID: 36416172 PMCID: PMC9851453 DOI: 10.1161/jaha.122.027958] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Background Lipoprotein lipase (LPL)-derived fatty acid is a major source of energy for cardiac contraction. Synthesized in cardiomyocytes, LPL requires translocation to the vascular lumen for hydrolysis of lipoprotein triglyceride, an action mediated by endothelial cell (EC) release of heparanase. We determined whether flow-mediated biophysical forces can cause ECs to secrete heparanase and thus regulate cardiac metabolism. Methods and Results Isolated hearts were retrogradely perfused. Confluent rat aortic ECs were exposed to laminar flow using an orbital shaker. Cathepsin L activity was determined using gelatin-zymography. Diabetes was induced in rats with streptozotocin. Despite the abundance of enzymatically active heparanase in the heart, it was the enzymatically inactive, latent heparanase that was exceptionally responsive to flow-induced release. EC exposed to orbital rotation exhibited a similar pattern of heparanase secretion, an effect that was reproduced by activation of the mechanosensor, Piezo1. The laminar flow-mediated release of heparanase from EC required activation of both the purinergic receptor and protein kinase D, a kinase that assists in vesicular transport of proteins. Heparanase influenced cardiac metabolism by increasing cardiomyocyte LPL displacement along with subsequent replenishment. The flow-induced heparanase secretion was augmented following diabetes and could explain the increased heparin-releasable pool of LPL at the coronary lumen in these diabetic hearts. Conclusions ECs sense fluid shear-stress and communicate this information to subjacent cardiomyocytes with the help of heparanase. This flow-induced mechanosensing and its dynamic control of cardiac metabolism to generate ATP, using LPL-derived fatty acid, is exquisitely adapted to respond to disease conditions, like diabetes.
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Affiliation(s)
- Chae Syng Lee
- Faculty of Pharmaceutical SciencesUBCVancouverBritish ColumbiaCanada
| | - Yajie Zhai
- Faculty of Pharmaceutical SciencesUBCVancouverBritish ColumbiaCanada
| | - Rui Shang
- Faculty of Pharmaceutical SciencesUBCVancouverBritish ColumbiaCanada
| | - Trevor Wong
- Faculty of Pharmaceutical SciencesUBCVancouverBritish ColumbiaCanada
| | - Aurora J. Mattison
- Department of Cellular and Physiological Sciences & Department of SurgeryDiabetes Focus Team, Life Sciences Institute, UBCVancouverBritish ColumbiaCanada
| | - Haoning Howard Cen
- Department of Cellular and Physiological Sciences & Department of SurgeryDiabetes Focus Team, Life Sciences Institute, UBCVancouverBritish ColumbiaCanada
| | - James D. Johnson
- Department of Cellular and Physiological Sciences & Department of SurgeryDiabetes Focus Team, Life Sciences Institute, UBCVancouverBritish ColumbiaCanada
| | - Israel Vlodavsky
- Cancer and Vascular Biology Research CenterRappaport Faculty of Medicine, TechnionHaifaIsrael
| | - Bahira Hussein
- Faculty of Pharmaceutical SciencesUBCVancouverBritish ColumbiaCanada
| | - Brian Rodrigues
- Faculty of Pharmaceutical SciencesUBCVancouverBritish ColumbiaCanada
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8
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Oncel S, Basson MD. ZINC40099027 promotes monolayer circular defect closure by a novel pathway involving cytosolic activation of focal adhesion kinase and downstream paxillin and ERK1/2. Cell Tissue Res 2022; 390:261-279. [PMID: 36001146 DOI: 10.1007/s00441-022-03674-1] [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: 03/10/2022] [Accepted: 08/17/2022] [Indexed: 11/02/2022]
Abstract
ZINC40099027 (ZN27) is a specific focal adhesion kinase (FAK) activator that promotes murine mucosal wound closure after ischemic or NSAID-induced injury. Diverse motogenic pathways involve FAK, but the direct consequences of pure FAK activation have not been studied, and how ZN27-induced FAK activation stimulates wound closure remained unclear. We investigated signaling and focal adhesion (FA) turnover after FAK activation by ZN27 in Caco-2 cells, confirming key results in CCD841 cells. ZN27 increased Caco-2 FAK-Y-397, FAK-Y-576/7, paxillin-Y-118, and ERK 1/2 phosphorylation and decreased FAK-Y-925 phosphorylation, without altering FAK-Y-861, p38, Jnk, or Akt phosphorylation. ZN27 increased FAK-paxillin interaction while decreasing FAK-Grb2 association. ZN27 increased membrane-associated FAK-Y-397 and FAK-Y-576/7 phosphorylation and paxillin-Y-118 and ERK 1/2 phosphorylation but decreased FAK-Y-925 phosphorylation without altering Src or Grb2. Moreover, ZN27 increased the fluorescence intensity of GFP-FAK and pFAK-Y397 in FAs and increased the total number of FAs but reduced their size in GFP-FAK-transfected Caco-2 cells, consistent with increased FA turnover. In contrast, FAK-Y397F transfection prevented ZN27 effects on FAK size and number and FAK and pFAK fluorescent intensity in FAs. We confirmed the proposed FAK/paxillin/ERK pathway using PP2 and U0126 to block Src and MEK1/2 in Caco-2 and CCD841 cells. These results suggest that ZN27 promotes intestinal epithelial monolayer defect closure by stimulating autophosphorylation of FAK in the cytosol, distinct from classical models of FAK activation in the FA. Phosphorylated FAK translocates to the membrane, where its downstream substrates paxillin and ERK are phosphorylated, leading to FA turnover and human intestinal epithelial cell migration.
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Affiliation(s)
- Sema Oncel
- Department of Biomedical Sciences, University of North Dakota School of Medicine & Health Sciences, Grand Forks, USA
| | - Marc D Basson
- Department of Biomedical Sciences, Department of Surgery, Department of Pathology, University of North Dakota School of Medicine & Health Sciences, Grand Forks, USA.
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Le Coq J, Acebrón I, Rodrigo Martin B, López Navajas P, Lietha D. New insights into FAK structure and function in focal adhesions. J Cell Sci 2022; 135:277381. [PMID: 36239192 DOI: 10.1242/jcs.259089] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Focal adhesion kinase (FAK; also known as PTK2) was discovered three decades ago and is now recognised as a key player in the regulation of cell-matrix adhesion and mesenchymal cell migration. Although it is essential during development, FAK also drives invasive cancer progression and metastasis. On a structural level, the basic building blocks of FAK have been described for some time. However, a picture of how FAK integrates into larger assemblies in various cellular environments, including one of its main cellular locations, the focal adhesion (FA) complex, is only beginning to emerge. Nano-resolution data from cellular studies, as well as atomic structures from reconstituted systems, have provided first insights, but also point to challenges that remain for obtaining a full structural understanding of how FAK is integrated in the FA complex and the structural changes occurring at different stages of FA maturation. In this Review, we discuss the known structural features of FAK, the interactions with its partners within the FA environment on the cell membrane and propose how its initial assembly in nascent FAs might change during FA maturation under force.
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Affiliation(s)
- Johanne Le Coq
- Structural Biology Programme, Spanish National Cancer Research Centre (CNIO), 28029 Madrid, Spain
| | - Iván Acebrón
- Structural Biology Programme, Spanish National Cancer Research Centre (CNIO), 28029 Madrid, Spain
| | - Bárbara Rodrigo Martin
- Structural and Chemical Biology, Margarita Salas Center for Biological Research (CIB), Spanish National Research Council (CSIC), 28040 Madrid, Spain
| | - Pilar López Navajas
- Structural and Chemical Biology, Margarita Salas Center for Biological Research (CIB), Spanish National Research Council (CSIC), 28040 Madrid, Spain
| | - Daniel Lietha
- Structural and Chemical Biology, Margarita Salas Center for Biological Research (CIB), Spanish National Research Council (CSIC), 28040 Madrid, Spain
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10
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Wang C, Tan L, Liu J, Fu D, Wang C, Li P, Li Z, Liu J. Integrated Metabolomics and Network Pharmacology to Decipher the Latent Mechanisms of Protopanaxatriol against Acetic Acid-Induced Gastric Ulcer. Int J Mol Sci 2022; 23:ijms232012097. [PMID: 36292949 PMCID: PMC9602736 DOI: 10.3390/ijms232012097] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Revised: 09/05/2022] [Accepted: 09/30/2022] [Indexed: 11/25/2022] Open
Abstract
Gastric ulcer (GU) is a peptic disease with high morbidity and mortality rates affecting approximately 4% of the population throughout the world. Current therapies for GU are limited by the high relapse incidence and side effects. Therefore, novel effective antiulcer drugs are urgently needed. Ginsenosides have shown good anti-GU effects, and the major intestinal bacterial metabolite of ginsenosides, protopanaxatriol (PPT), is believed to be the active component. In this study, we evaluated the anti-GU effect of PPT in rats in an acetic acid-induced GU model. High (H-PPT) and medium (M-PPT) doses of PPT (20.0 and 10.0 mg/mg/day) significantly reduced the ulcer area and the ET-1, IL-6, EGF, SOD, MDA and TNF-α levels in serum were regulated by PPT in a dose-dependent manner. We also investigated the mechanisms of anti-GU activity of PPT based on metabolomics coupled with network pharmacology strategy. The result was that 16 biomarkers, 3 targets and 3 metabolomic pathways were identified as playing a vital role in the treatment of GU with PPT and were further validated by molecular docking. In this study, we have demonstrated that the integrated analysis of metabolomics and network pharmacology is an effective strategy for deciphering the complicated mechanisms of natural compounds.
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Affiliation(s)
- Cuizhu Wang
- School of Pharmaceutical Sciences, Jilin University, Changchun 130021, China
- Research Center of Natural Drug, Jilin University, Changchun 130021, China
| | - Luying Tan
- School of Pharmaceutical Sciences, Jilin University, Changchun 130021, China
| | - Juntong Liu
- School of Pharmaceutical Sciences, Jilin University, Changchun 130021, China
| | - Dongxing Fu
- School of Pharmaceutical Sciences, Jilin University, Changchun 130021, China
| | - Caixia Wang
- School of Pharmaceutical Sciences, Jilin University, Changchun 130021, China
| | - Pingya Li
- School of Pharmaceutical Sciences, Jilin University, Changchun 130021, China
- Research Center of Natural Drug, Jilin University, Changchun 130021, China
| | - Zhuo Li
- School of Pharmaceutical Sciences, Jilin University, Changchun 130021, China
- Correspondence: (Z.L.); (J.L.); Tel.: +86-0431-8561-9803 (J.L.)
| | - Jinping Liu
- School of Pharmaceutical Sciences, Jilin University, Changchun 130021, China
- Research Center of Natural Drug, Jilin University, Changchun 130021, China
- Correspondence: (Z.L.); (J.L.); Tel.: +86-0431-8561-9803 (J.L.)
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11
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Oncel S, Basson MD. Gut homeostasis, injury, and healing: New therapeutic targets. World J Gastroenterol 2022; 28:1725-1750. [PMID: 35633906 PMCID: PMC9099196 DOI: 10.3748/wjg.v28.i17.1725] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Revised: 12/12/2021] [Accepted: 03/27/2022] [Indexed: 02/06/2023] Open
Abstract
The integrity of the gastrointestinal mucosa plays a crucial role in gut homeostasis, which depends upon the balance between mucosal injury by destructive factors and healing via protective factors. The persistence of noxious agents such as acid, pepsin, nonsteroidal anti-inflammatory drugs, or Helicobacter pylori breaks down the mucosal barrier and injury occurs. Depending upon the size and site of the wound, it is healed by complex and overlapping processes involving membrane resealing, cell spreading, purse-string contraction, restitution, differentiation, angiogenesis, and vasculogenesis, each modulated by extracellular regulators. Unfortunately, the gut does not always heal, leading to such pathology as peptic ulcers or inflammatory bowel disease. Currently available therapeutics such as proton pump inhibitors, histamine-2 receptor antagonists, sucralfate, 5-aminosalicylate, antibiotics, corticosteroids, and immunosuppressants all attempt to minimize or reduce injury to the gastrointestinal tract. More recent studies have focused on improving mucosal defense or directly promoting mucosal repair. Many investigations have sought to enhance mucosal defense by stimulating mucus secretion, mucosal blood flow, or tight junction function. Conversely, new attempts to directly promote mucosal repair target proteins that modulate cytoskeleton dynamics such as tubulin, talin, Ehm2, filamin-a, gelsolin, and flightless I or that proteins regulate focal adhesions dynamics such as focal adhesion kinase. This article summarizes the pathobiology of gastrointestinal mucosal healing and reviews potential new therapeutic targets.
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Affiliation(s)
- Sema Oncel
- Department of Biomedical Sciences, University of North Dakota School of Medicine and Health Sciences, Grand Forks, ND 58202, United States
| | - Marc D Basson
- Department of Biomedical Sciences, University of North Dakota School of Medicine and Health Sciences, Grand Forks, ND 58202, United States
- Department of Surgery, University of North Dakota School of Medicine and Health Sciences, Grand Forks, ND 58202, United States
- Department of Pathology, University of North Dakota School of Medicine and Health Sciences, Grand Forks, ND 58202, United States
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12
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Tissue extracellular matrix hydrogels as alternatives to Matrigel for culturing gastrointestinal organoids. Nat Commun 2022; 13:1692. [PMID: 35354790 PMCID: PMC8967832 DOI: 10.1038/s41467-022-29279-4] [Citation(s) in RCA: 104] [Impact Index Per Article: 52.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Accepted: 03/04/2022] [Indexed: 12/16/2022] Open
Abstract
Matrigel, a mouse tumor extracellular matrix protein mixture, is an indispensable component of most organoid tissue culture. However, it has limited the utility of organoids for drug development and regenerative medicine due to its tumor-derived origin, batch-to-batch variation, high cost, and safety issues. Here, we demonstrate that gastrointestinal tissue-derived extracellular matrix hydrogels are suitable substitutes for Matrigel in gastrointestinal organoid culture. We found that the development and function of gastric or intestinal organoids grown in tissue extracellular matrix hydrogels are comparable or often superior to those in Matrigel. In addition, gastrointestinal extracellular matrix hydrogels enabled long-term subculture and transplantation of organoids by providing gastrointestinal tissue-mimetic microenvironments. Tissue-specific and age-related extracellular matrix profiles that affect organoid development were also elucidated through proteomic analysis. Together, our results suggest that extracellular matrix hydrogels derived from decellularized gastrointestinal tissues are effective alternatives to the current gold standard, Matrigel, and produce organoids suitable for gastrointestinal disease modeling, drug development, and tissue regeneration.
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13
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Liu CY, Cham CM, Chang EB. Epithelial wound healing in inflammatory bowel diseases: the next therapeutic frontier. Transl Res 2021; 236:35-51. [PMID: 34126257 PMCID: PMC8380699 DOI: 10.1016/j.trsl.2021.06.001] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Revised: 05/25/2021] [Accepted: 06/08/2021] [Indexed: 02/07/2023]
Abstract
Patients with one of the many chronic inflammatory disorders broadly classified as inflammatory bowel disease (IBD) now have a diverse set of immunomodulatory therapies at their disposal. Despite these recent medical advances, complete sustained remission of disease remains elusive for most patients. The full healing of the damaged intestinal mucosa is the primary goal of all therapies. Achieving this requires not just a reduction of the aberrant immunological response, but also wound healing of the epithelium. No currently approved therapy directly targets the epithelium. Epithelial repair is compromised in IBD and normally facilitates re-establishment of the homeostatic barrier between the host and the microbiome. In this review, we summarize the evidence that epithelial wound healing represents an important yet underdeveloped therapeutic modality for IBD. We highlight 3 general approaches that are promising for developing a new class of epithelium-targeted therapies: epithelial stem cells, cytokines, and microbiome engineering. We also provide a frank discussion of some of the challenges that must be overcome for epithelial repair to be therapeutically leveraged. A concerted approach by the field to develop new therapies targeting epithelial wound healing will offer patients a game-changing, complementary class of medications and could dramatically improve outcomes.
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Affiliation(s)
- Cambrian Y Liu
- Department of Medicine, The University of Chicago, Chicago, Illinois.
| | - Candace M Cham
- Department of Medicine, The University of Chicago, Chicago, Illinois
| | - Eugene B Chang
- Department of Medicine, The University of Chicago, Chicago, Illinois.
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14
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Tarnawski AS, Ahluwalia A. The Critical Role of Growth Factors in Gastric Ulcer Healing: The Cellular and Molecular Mechanisms and Potential Clinical Implications. Cells 2021; 10:cells10081964. [PMID: 34440733 PMCID: PMC8392882 DOI: 10.3390/cells10081964] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Revised: 07/25/2021] [Accepted: 07/29/2021] [Indexed: 02/06/2023] Open
Abstract
In this article we review the cellular and molecular mechanisms of gastric ulcer healing. A gastric ulcer (GU) is a deep defect in the gastric wall penetrating through the entire mucosa and the muscularis mucosae. GU healing is a regeneration process that encompasses cell dedifferentiation, proliferation, migration, re-epithelialization, formation of granulation tissue, angiogenesis, vasculogenesis, interactions between various cells and the matrix, and tissue remodeling, all resulting in scar formation. All these events are controlled by cytokines and growth factors (e.g., EGF, TGFα, IGF-1, HGF, bFGF, TGFβ, NGF, VEGF, angiopoietins) and transcription factors activated by tissue injury. These growth factors bind to their receptors and trigger cell proliferation, migration, and survival pathways through Ras, MAPK, PI3K/Akt, PLC-γ, and Rho/Rac/actin signaling. The triggers for the activation of these growth factors are tissue injury and hypoxia. EGF, its receptor, IGF-1, HGF, and COX-2 are important for epithelial cell proliferation, migration, re-epithelialization, and gastric gland reconstruction. VEGF, angiopoietins, bFGF, and NGF are crucial for blood vessel regeneration in GU scars. The serum response factor (SRF) is essential for VEGF-induced angiogenesis, re-epithelialization, and blood vessel and muscle restoration. Local therapy with cDNA of human recombinant VEGF165 in combination with angiopoietin1, or with the NGF protein, dramatically accelerates GU healing and improves the quality of mucosal restoration within ulcer scars. The future directions for accelerating and improving healing include local gene and protein therapies with growth factors, their combinations, and the use of stem cells and tissue engineering.
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Affiliation(s)
- Andrzej S. Tarnawski
- Medical Research Service, VA Long Beach Healthcare System Long Beach, 5901 East Seventh Street, Long Beach, CA 90822, USA
- Division of Gastroenterology, Department of Medicine and Digestive Health Institute, The University of California-Irvine, Irvine, CA 92697, USA
- Correspondence: (A.S.T.); (A.A.); Tel.: +1-(562)-826-5813 (A.A.); Fax: +1-(562)-826-5675 (A.A.)
| | - Amrita Ahluwalia
- Medical Research Service, VA Long Beach Healthcare System Long Beach, 5901 East Seventh Street, Long Beach, CA 90822, USA
- Correspondence: (A.S.T.); (A.A.); Tel.: +1-(562)-826-5813 (A.A.); Fax: +1-(562)-826-5675 (A.A.)
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15
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Stahnke S, Döring H, Kusch C, de Gorter DJJ, Dütting S, Guledani A, Pleines I, Schnoor M, Sixt M, Geffers R, Rohde M, Müsken M, Kage F, Steffen A, Faix J, Nieswandt B, Rottner K, Stradal TEB. Loss of Hem1 disrupts macrophage function and impacts migration, phagocytosis, and integrin-mediated adhesion. Curr Biol 2021; 31:2051-2064.e8. [PMID: 33711252 DOI: 10.1016/j.cub.2021.02.043] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Revised: 10/12/2020] [Accepted: 02/17/2021] [Indexed: 12/22/2022]
Abstract
Hematopoietic-specific protein 1 (Hem1) is an essential subunit of the WAVE regulatory complex (WRC) in immune cells. WRC is crucial for Arp2/3 complex activation and the protrusion of branched actin filament networks. Moreover, Hem1 loss of function in immune cells causes autoimmune diseases in humans. Here, we show that genetic removal of Hem1 in macrophages diminishes frequency and efficacy of phagocytosis as well as phagocytic cup formation in addition to defects in lamellipodial protrusion and migration. Moreover, Hem1-null macrophages displayed strong defects in cell adhesion despite unaltered podosome formation and concomitant extracellular matrix degradation. Specifically, dynamics of both adhesion and de-adhesion as well as concomitant phosphorylation of paxillin and focal adhesion kinase (FAK) were significantly compromised. Accordingly, disruption of WRC function in non-hematopoietic cells coincided with both defects in adhesion turnover and altered FAK and paxillin phosphorylation. Consistently, platelets exhibited reduced adhesion and diminished integrin αIIbβ3 activation upon WRC removal. Interestingly, adhesion phenotypes, but not lamellipodia formation, were partially rescued by small molecule activation of FAK. A full rescue of the phenotype, including lamellipodia formation, required not only the presence of WRCs but also their binding to and activation by Rac. Collectively, our results uncover that WRC impacts on integrin-dependent processes in a FAK-dependent manner, controlling formation and dismantling of adhesions, relevant for properly grabbing onto extracellular surfaces and particles during cell edge expansion, like in migration or phagocytosis.
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Affiliation(s)
- Stephanie Stahnke
- Department of Cell Biology, Helmholtz Centre for Infection Research (HZI), Braunschweig, Germany
| | - Hermann Döring
- Zoological Institute, Technische Universität Braunschweig, Braunschweig, Germany
| | - Charly Kusch
- Institute of Experimental Biomedicine, University Hospital and Rudolf Virchow Center, University of Würzburg, Würzburg, Germany
| | - David J J de Gorter
- Institute of Molecular Cell Biology, Westphalian Wilhelms University Münster WWU, Münster, Germany
| | - Sebastian Dütting
- Institute of Experimental Biomedicine, University Hospital and Rudolf Virchow Center, University of Würzburg, Würzburg, Germany
| | - Aleks Guledani
- Institute of Molecular Cell Biology, Westphalian Wilhelms University Münster WWU, Münster, Germany
| | - Irina Pleines
- Institute of Experimental Biomedicine, University Hospital and Rudolf Virchow Center, University of Würzburg, Würzburg, Germany
| | - Michael Schnoor
- Department for Molecular Biomedicine, Centre for Investigation and Advanced Studies of the National Polytechnic Institute (Cinvestav-IPN), 07360 Mexico City, Mexico
| | - Michael Sixt
- Institute of Science and Technology IST Austria, Klosterneuburg, Austria
| | - Robert Geffers
- Genome Analytics Group, Helmholtz Center for Infection Research HZI, Braunschweig, Germany
| | - Manfred Rohde
- Central Facility for Microscopy, Helmholtz Center for Infection Research HZI, Braunschweig, Germany
| | - Mathias Müsken
- Central Facility for Microscopy, Helmholtz Center for Infection Research HZI, Braunschweig, Germany
| | - Frieda Kage
- Zoological Institute, Technische Universität Braunschweig, Braunschweig, Germany
| | - Anika Steffen
- Department of Cell Biology, Helmholtz Centre for Infection Research (HZI), Braunschweig, Germany
| | - Jan Faix
- Institute for Biophysical Chemistry, Hannover Medical School MHH, 30625 Hannover, Germany
| | - Bernhard Nieswandt
- Institute of Experimental Biomedicine, University Hospital and Rudolf Virchow Center, University of Würzburg, Würzburg, Germany
| | - Klemens Rottner
- Department of Cell Biology, Helmholtz Centre for Infection Research (HZI), Braunschweig, Germany; Zoological Institute, Technische Universität Braunschweig, Braunschweig, Germany
| | - Theresia E B Stradal
- Department of Cell Biology, Helmholtz Centre for Infection Research (HZI), Braunschweig, Germany.
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16
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ZINC40099027 Promotes Gastric Mucosal Repair in Ongoing Aspirin-Associated Gastric Injury by Activating Focal Adhesion Kinase. Cells 2021; 10:cells10040908. [PMID: 33920786 PMCID: PMC8071155 DOI: 10.3390/cells10040908] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 04/06/2021] [Accepted: 04/13/2021] [Indexed: 12/23/2022] Open
Abstract
Nonsteroidal anti-inflammatory drugs cause gastric ulcers and gastritis. No drug that treats GI injury directly stimulates mucosal healing. ZINC40099027 (ZN27) activates focal adhesion kinase (FAK) and heals acute indomethacin-induced small bowel injury. We investigated the efficacy of ZN27 in rat and human gastric epithelial cells and ongoing aspirin-associated gastric injury. ZN27 (10 nM) stimulated FAK activation and wound closure in rat and human gastric cell lines. C57BL/6J mice were treated with 300 mg/kg/day aspirin for five days to induce ongoing gastric injury. One day after the initial injury, mice received 900 µg/kg/6 h ZN27, 10 mg/kg/day omeprazole, or 900 µg/kg/6 h ZN27 plus 10 mg/kg/day omeprazole. Like omeprazole, ZN27 reduced gastric injury vs. vehicle controls. ZN27-treated mice displayed better gastric architecture, with thicker mucosa and less hyperemia, inflammation, and submucosal edema, and lost less weight than vehicle controls. Gastric pH, serum creatinine, serum alanine aminotransferase (ALT), and renal and hepatic histology were unaffected by ZN27. Blinded scoring of pFAK-Y-397 immunoreactivity at the edge of ZN27-treated lesions demonstrated increased FAK activation, compared to vehicle-treated lesions, confirming target activation in vivo. These results suggest that ZN27 ameliorates ongoing aspirin-associated gastric mucosal injury by a pathway involving FAK activation. ZN27-derivatives may be useful to promote gastric mucosal repair.
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17
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Rashmi, More SK, Wang Q, Vomhof‐DeKrey EE, Porter JE, Basson MD. ZINC40099027 activates human focal adhesion kinase by accelerating the enzymatic activity of the FAK kinase domain. Pharmacol Res Perspect 2021; 9:e00737. [PMID: 33715263 PMCID: PMC7955952 DOI: 10.1002/prp2.737] [Citation(s) in RCA: 10] [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: 01/25/2021] [Revised: 01/28/2021] [Accepted: 01/29/2021] [Indexed: 12/16/2022] Open
Abstract
Focal adhesion kinase (FAK) regulates gastrointestinal epithelial restitution and healing. ZINC40099027 (Zn27) activates cellular FAK and promotes intestinal epithelial wound closure in vitro and in mice. However, whether Zn27 activates FAK directly or indirectly remains unknown. We evaluated Zn27 potential modulation of the key phosphatases, PTP-PEST, PTP1B, and SHP2, that inactivate FAK, and performed in vitro kinase assays with purified FAK to assess direct Zn27-FAK interaction. In human Caco-2 cells, Zn27-stimulated FAK-Tyr-397 phosphorylation despite PTP-PEST inhibition and did not affect PTP1B-FAK interaction or SHP2 activity. Conversely, in vitro kinase assays demonstrated that Zn27 directly activates both full-length 125 kDa FAK and its 35 kDa kinase domain. The ATP-competitive FAK inhibitor PF573228 reduced basal and ZN27-stimulated FAK phosphorylation in Caco-2 cells, but Zn27 increased FAK phosphorylation even in cells treated with PF573228. Increasing PF573228 concentrations completely prevented activation of 35 kDa FAK in vitro by a normally effective Zn27 concentration. Conversely, increasing Zn27 concentrations dose-dependently activated kinase activity and overcame PF573228 inhibition of FAK, suggesting the direct interactions of Zn27 with FAK may be competitive. Zn27 increased the maximal activity (Vmax ) of FAK. The apparent Km of the substrate also increased under laboratory conditions less relevant to intracellular ATP concentrations. These results suggest that Zn27 is highly potent and enhances FAK activity via allosteric interaction with the FAK kinase domain to increase the Vmax of FAK for ATP. Understanding Zn27 enhancement of FAK activity will be important to redesign and develop a clinical drug that can promote mucosal wound healing.
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Affiliation(s)
- Rashmi
- Department of SurgeryUniversity of North Dakota School of Medicine & Health SciencesGrand ForksNDUSA
| | - Shyam K. More
- Department of SurgeryUniversity of North Dakota School of Medicine & Health SciencesGrand ForksNDUSA
| | - Qinggang Wang
- Department of SurgeryUniversity of North Dakota School of Medicine & Health SciencesGrand ForksNDUSA
| | - Emilie E. Vomhof‐DeKrey
- Department of SurgeryUniversity of North Dakota School of Medicine & Health SciencesGrand ForksNDUSA
- Department of Biomedical SciencesUniversity of North Dakota School of Medicine & Health SciencesGrand ForksNDUSA
| | - James E. Porter
- Department of Biomedical SciencesUniversity of North Dakota School of Medicine & Health SciencesGrand ForksNDUSA
| | - Marc D. Basson
- Department of SurgeryUniversity of North Dakota School of Medicine & Health SciencesGrand ForksNDUSA
- Department of Biomedical SciencesUniversity of North Dakota School of Medicine & Health SciencesGrand ForksNDUSA
- Department of PathologyUniversity of North Dakota School of Medicine & Health SciencesGrand ForksNDUSA
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18
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Wang Q, Gallardo-Macias R, Rashmi, Golovko MY, Elsayed AAR, More SK, Oncel S, Gurvich VJ, Basson MD. Discovery of Novel Small-Molecule FAK Activators Promoting Mucosal Healing. ACS Med Chem Lett 2021; 12:356-364. [PMID: 33738062 DOI: 10.1021/acsmedchemlett.0c00311] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Accepted: 02/12/2021] [Indexed: 12/16/2022] Open
Abstract
Gastrointestinal mucosal wounds are common to patients injured by factors as diverse as drugs, inflammatory bowel disease, peptic ulcers, and necrotizing enterocolitis. However, although many drugs are used to ameliorate injurious factors, there is no drug available to actually stimulate mucosal wound healing. Focal adhesion kinase (FAK), a nonreceptor tyrosine kinase, induces epithelial sheet migration and wound healing, making FAK a potential pharmacological target in this regard. In our previous research, we found a lead compound with drug-like properties, ZINC40099027, which promotes FAK phosphorylation, inducing mucosal healing in murine models. Herein we describe the design and optimization of a small library of novel FAK activators based on ZINC40099027 and their applications toward human intestinal epithelial wound closure and mouse ulcer healing.
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Affiliation(s)
- Qinggang Wang
- Department of Surgery, University of North Dakota School of Medicine and Health Sciences, 1301 North Columbia Road, Grand Forks, North Dakota 58201, United States
| | - Ricardo Gallardo-Macias
- Institute for Therapeutics Discovery and Development and Department of Medicinal Chemistry, College of Pharmacy, University of Minnesota, 717 Delaware Street SE, Minneapolis, Minnesota 55414, United States
| | - Rashmi
- Department of Surgery, University of North Dakota School of Medicine and Health Sciences, 1301 North Columbia Road, Grand Forks, North Dakota 58201, United States
| | - Mikhail Y. Golovko
- Department of Biomedical Sciences, University of North Dakota School of Medicine and Health Sciences, 1301 North Columbia Road, Grand Forks, North Dakota 58201, United States
| | - Ahmed Adham Raafat Elsayed
- Department of Surgery, University of North Dakota School of Medicine and Health Sciences, 1301 North Columbia Road, Grand Forks, North Dakota 58201, United States
| | - Shyam K. More
- Department of Surgery, University of North Dakota School of Medicine and Health Sciences, 1301 North Columbia Road, Grand Forks, North Dakota 58201, United States
| | - Sema Oncel
- Department of Biomedical Sciences, University of North Dakota School of Medicine and Health Sciences, 1301 North Columbia Road, Grand Forks, North Dakota 58201, United States
| | - Vadim J. Gurvich
- Institute for Therapeutics Discovery and Development and Department of Medicinal Chemistry, College of Pharmacy, University of Minnesota, 717 Delaware Street SE, Minneapolis, Minnesota 55414, United States
| | - Marc D. Basson
- Department of Surgery, University of North Dakota School of Medicine and Health Sciences, 1301 North Columbia Road, Grand Forks, North Dakota 58201, United States
- Department of Biomedical Sciences, University of North Dakota School of Medicine and Health Sciences, 1301 North Columbia Road, Grand Forks, North Dakota 58201, United States
- Department of Pathology, University of North Dakota School of Medicine and Health Sciences, 1301 North Columbia Road, Grand Forks, North Dakota 58201, United States
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19
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Wang Z, Wang L, Zhou J, Zou J, Fan L. New insights into the immune regulation and tissue repair of Litopenaeus vannamei during temperature fluctuation using TMT-based proteomics. FISH & SHELLFISH IMMUNOLOGY 2020; 106:975-981. [PMID: 32927054 DOI: 10.1016/j.fsi.2020.09.014] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Revised: 09/01/2020] [Accepted: 09/08/2020] [Indexed: 06/11/2023]
Abstract
To investigate shrimp immunoregulation and tissue self-repair mechanism during temperature fluctuation stage, Litopenaeus vannamei (L. vannamei) was treated under conditions of gradual cooling from an acclimation temperature (28 °C, C group) to 13 °C (T group) in 2 days with a cooling rate of 7.5 °C/d and then rewarmed to 28 °C (R group) with the same rate. Tandem mass tags (TMT) -based proteomics technology was used to investigate the protein abundance changes of intestine in L. vannamei during temperature fluctuation. The results showed that a total of 5796 proteins with function annotation were identified. Of which, the abundances of 1978 proteins (34%) decreased after cooling and then increased after rewarming, 1498 proteins (26%) increased during the whole stage, 1263 proteins (22%) increased after cooling and then decreased after rewarming and 1057 proteins (18%) decreased during the whole stage. Differentially expressed proteins such as C-lectin, NFκBIA and Caspase may contributed to the regulation of immunity and tissue repair of shrimp intestine during the temperature fluctuation stage. These findings contribute to the better understanding of shrimp' regulatory mechanism against adverse environment.
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Affiliation(s)
- Zhenlu Wang
- College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, PR China; Guangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Guangzhou, 510642, PR China
| | - Lei Wang
- Institute of Modern Aquaculture Science and Engineering (IMASE), Guangdong Provincial Key Laboratory for Healthy and Safe Aquaculture, Guangzhou Key Laboratory of Subtropical Biodiversity and Biomonitoring, Key Laboratory of Ecology and Environmental Science in Guangdong Higher Education, School of Life Sciences, South China Normal University, Guangzhou, 510631, PR China
| | - Jiang Zhou
- College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, PR China; Guangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Guangzhou, 510642, PR China
| | - Jixing Zou
- College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, PR China; Guangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Guangzhou, 510642, PR China.
| | - Lanfen Fan
- College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, PR China; Guangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Guangzhou, 510642, PR China.
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20
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Protective Effect of Ocotillol, the Derivate of Ocotillol-Type Saponins in Panax Genus, against Acetic Acid-Induced Gastric Ulcer in Rats Based on Untargeted Metabolomics. Int J Mol Sci 2020; 21:ijms21072577. [PMID: 32276345 PMCID: PMC7177626 DOI: 10.3390/ijms21072577] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2020] [Revised: 03/30/2020] [Accepted: 04/02/2020] [Indexed: 02/07/2023] Open
Abstract
Gastric ulcer (GU), a prevalent digestive disease, has a high incidence and is seriously harmful to human health. Finding a natural drug with a gastroprotective effect is needed. Ocotillol, the derivate of ocotillol-type saponins in the Panax genus, possesses good anti-inflammatory activity. The study aimed to investigate the gastroprotective effect of ocotillol on acetic acid-induced GU rats. The serum levels of endothelin-1 (ET-1) and nitric oxide (NO), the gastric mucosa levels of epidermal growth factor, superoxide dismutase and NO were assessed. Hematoxylin and eosin staining of gastric mucosa for pathological changes and immunohistochemical staining of ET-1, epidermal growth factor receptors and inducible nitric oxide synthase were evaluated. A UPLC-QTOF-MS-based serum metabolomics approach was applied to explore the latent mechanism. A total of 21 potential metabolites involved in 7 metabolic pathways were identified. The study helps us to understand the pathogenesis of GU and to provide a potential natural anti-ulcer agent.
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FAK Structure and Regulation by Membrane Interactions and Force in Focal Adhesions. Biomolecules 2020; 10:biom10020179. [PMID: 31991559 PMCID: PMC7072507 DOI: 10.3390/biom10020179] [Citation(s) in RCA: 99] [Impact Index Per Article: 24.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Revised: 01/17/2020] [Accepted: 01/20/2020] [Indexed: 12/21/2022] Open
Abstract
Focal adhesion kinase (FAK) is a non-receptor tyrosine kinase with key roles in the regulation of cell adhesion migration, proliferation and survival. In cancer FAK is a major driver of invasion and metastasis and its upregulation is associated with poor patient prognosis. FAK is autoinhibited in the cytosol, but activated upon localisation into a protein complex, known as focal adhesion complex. This complex forms upon cell adhesion to the extracellular matrix (ECM) at the cytoplasmic side of the plasma membrane at sites of ECM attachment. FAK is anchored to the complex via multiple sites, including direct interactions with specific membrane lipids and connector proteins that attach focal adhesions to the actin cytoskeleton. In migrating cells, the contraction of actomyosin stress fibres attached to the focal adhesion complex apply a force to the complex, which is likely transmitted to the FAK protein, causing stretching of the FAK molecule. In this review we discuss the current knowledge of the FAK structure and how specific structural features are involved in the regulation of FAK signalling. We focus on two major regulatory mechanisms known to contribute to FAK activation, namely interactions with membrane lipids and stretching forces applied to FAK, and discuss how they might induce structural changes that facilitate FAK activation.
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