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Shafaq-Zadah M, Dransart E, Mani SK, Sampaio JL, Bouidghaghen L, Nilsson UJ, Leffler H, Johannes L. Exploration into Galectin-3 Driven Endocytosis and Lattices. Biomolecules 2024; 14:1169. [PMID: 39334935 PMCID: PMC11430376 DOI: 10.3390/biom14091169] [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: 03/19/2024] [Revised: 09/05/2024] [Accepted: 09/14/2024] [Indexed: 09/30/2024] Open
Abstract
Essentially all plasma membrane proteins are glycosylated, and their activity is regulated by tuning their cell surface dynamics. This is achieved by glycan-binding proteins of the galectin family that either retain glycoproteins within lattices or drive their endocytic uptake via the clathrin-independent glycolipid-lectin (GL-Lect) mechanism. Here, we have used immunofluorescence-based assays to analyze how lattice and GL-Lect mechanisms affect the internalization of the cell adhesion and migration glycoprotein α5β1 integrin. In retinal pigment epithelial (RPE-1) cells, internalized α5β1 integrin is found in small peripheral endosomes under unperturbed conditions. Pharmacological compounds were used to competitively inhibit one of the galectin family members, galectin-3 (Gal3), or to inhibit the expression of glycosphingolipids, both of which are the fabric of the GL-Lect mechanism. We found that under acute inhibition conditions, endocytic uptake of α5β1 integrin was strongly reduced, in agreement with previous studies on the GL-Lect driven internalization of the protein. In contrast, upon prolonged inhibitor treatment, the uptake of α5β1 integrin was increased, and the protein was now internalized by alternative pathways into large perinuclear endosomes. Our findings suggest that under these prolonged inhibitor treatment conditions, α5β1 integrin containing galectin lattices are dissociated, leading to an altered endocytic compartmentalization.
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Affiliation(s)
- Massiullah Shafaq-Zadah
- Cellular and Chemical Biology Unit, Institut Curie, Paris Sciences & Lettres Research University, U1143 INSERM, UMR3666 CNRS, 75248 Paris, France; (E.D.); (S.K.M.)
| | - Estelle Dransart
- Cellular and Chemical Biology Unit, Institut Curie, Paris Sciences & Lettres Research University, U1143 INSERM, UMR3666 CNRS, 75248 Paris, France; (E.D.); (S.K.M.)
| | - Satish Kailasam Mani
- Cellular and Chemical Biology Unit, Institut Curie, Paris Sciences & Lettres Research University, U1143 INSERM, UMR3666 CNRS, 75248 Paris, France; (E.D.); (S.K.M.)
| | - Julio Lopes Sampaio
- CurieCoreTech–Metabolomics and Lipidomics Platform, Institute Curie, 75248 Paris, France; (J.L.S.); (L.B.)
| | - Lydia Bouidghaghen
- CurieCoreTech–Metabolomics and Lipidomics Platform, Institute Curie, 75248 Paris, France; (J.L.S.); (L.B.)
| | - Ulf J. Nilsson
- Department of Chemistry, Lund University, 221 00 Lund, Sweden;
| | - Hakon Leffler
- Section MIG (Microbiology, Immunology, Glycobiology), Department of Laboratory Medicine, Lund University, 221 00 Lund, Sweden;
| | - Ludger Johannes
- Cellular and Chemical Biology Unit, Institut Curie, Paris Sciences & Lettres Research University, U1143 INSERM, UMR3666 CNRS, 75248 Paris, France; (E.D.); (S.K.M.)
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2
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Jang J, Park HJ, Seong W, Kim J, Kim C. Vimentin-mediated buffering of internal integrin β1 pool increases survival of cells from anoikis. BMC Biol 2024; 22:139. [PMID: 38915055 PMCID: PMC11197373 DOI: 10.1186/s12915-024-01942-w] [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: 02/10/2024] [Accepted: 06/18/2024] [Indexed: 06/26/2024] Open
Abstract
BACKGROUND The intermediate filament protein vimentin is widely recognized as a molecular marker of epithelial-to-mesenchymal transition. Although vimentin expression is strongly associated with cancer metastatic potential, the exact role of vimentin in cancer metastasis and the underlying mechanism of its pro-metastatic functions remain unclear. RESULTS This study revealed that vimentin can enhance integrin β1 surface expression and induce integrin-dependent clustering of cells, shielding them against anoikis cell death. The increased integrin β1 surface expression in suspended cells was caused by vimentin-mediated protection of the internal integrin β1 pool against lysosomal degradation. Additionally, cell detachment was found to induce vimentin Ser38 phosphorylation, allowing the translocation of internal integrin β1 to the plasma membrane. Furthermore, the use of an inhibitor of p21-activated kinase PAK1, one of the kinases responsible for vimentin Ser38 phosphorylation, significantly reduced cancer metastasis in animal models. CONCLUSIONS These findings suggest that vimentin can act as an integrin buffer, storing internalized integrin β1 and releasing it when needed. Overall, this study provides insights regarding the strong correlation between vimentin expression and cancer metastasis and a basis for blocking metastasis using this novel therapeutic mechanism.
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Affiliation(s)
- Jiyoung Jang
- Department of Life Sciences, Korea University, Seoul, 02841, Republic of Korea
| | - Hyun Jung Park
- Samsung Genome Institute, Samsung Medical Center, Seoul, 06351, Republic of Korea
| | - Wonyoung Seong
- Department of Life Sciences, Korea University, Seoul, 02841, Republic of Korea
| | - Jiyoon Kim
- Donnelly Centre, University of Toronto, ON, Toronto, M5S 3E1, Canada
| | - Chungho Kim
- Department of Life Sciences, Korea University, Seoul, 02841, Republic of Korea.
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3
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Bhattacharya S, Sarker S, Das S, Ahir M, Chattopadhyay S, Ghosh S, Adhikary A. microRNA-205 represses breast cancer metastasis by perturbing the rab coupling protein [RCP]-mediated integrin β1 recycling on the membrane. Apoptosis 2024; 29:191-209. [PMID: 37945815 DOI: 10.1007/s10495-023-01912-7] [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] [Accepted: 10/27/2023] [Indexed: 11/12/2023]
Abstract
During cancer cell invasion, integrin undergoes constant endo/exocytic trafficking. It has been found that the recycling ability of integrin β1 through Rab11-controlled long loop pathways is directly associated with cancer invasion. Previous studies showed that gain-of-function mutant p53 regulates the Rab-coupling protein [RCP]-mediated integrin β1 recycling by inactivating tumor suppressor TAp63. So, we were interested to investigate the involvement of miR-205 in this process. In the current study first, we evaluated that the lower expression of miR-205 in MDA-MB-231 cell line is associated with high motility and invasiveness. Further investigation corroborated that miR-205 directly targets RCP resulting in attenuated RCP-mediated integrin β1 recycling. Overexpression of TAp63 validates our in vitro findings. To appraise the anti-metastatic role of miR-205, we developed two in vivo experimental models- xenograft-chick embryo and xenograft-immunosuppressed BALB/c mice. Our in vivo results support the negative effect of miR-205 on metastasis. Therefore, these findings advocate the tumor suppressor activity of miR-205 in breast cancer cells and suggest that in the future development of miR-205-targeting RNAi therapeutics could be a smart alternative approach to prevent the metastatic fate of the disease.
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Affiliation(s)
- Saurav Bhattacharya
- Centre for Research in Nanoscience and Nanotechnology, Technology Campus, University of Calcutta, JD-2, Sector-III, Salt Lake, Kolkata, 700106, West Bengal, India
- Department of Internal Medicine, University of Texas Southwestern Medical Center, 5323 Harry Hines Blvd, Dallas, TX, 75390, USA
| | - Sushmita Sarker
- Centre for Research in Nanoscience and Nanotechnology, Technology Campus, University of Calcutta, JD-2, Sector-III, Salt Lake, Kolkata, 700106, West Bengal, India
| | - Shaswati Das
- Centre for Research in Nanoscience and Nanotechnology, Technology Campus, University of Calcutta, JD-2, Sector-III, Salt Lake, Kolkata, 700106, West Bengal, India
| | - Manisha Ahir
- Centre for Research in Nanoscience and Nanotechnology, Technology Campus, University of Calcutta, JD-2, Sector-III, Salt Lake, Kolkata, 700106, West Bengal, India
- Baylor College of Medicine, Houston, TX, USA
| | - Sreya Chattopadhyay
- Department of Physiology, University of Calcutta, 92 Acharya Prafulla Chandra Road, Kolkata, 700009, West Bengal, India
| | - Swatilekha Ghosh
- Amity Institute of Biotechnology, Amity University, Kolkata. Major Arterial Road [South-East], Action Area II, Newtown, Kolkata, 700135, West Bengal, India
| | - Arghya Adhikary
- Department of Life science & Bio-technology, Jadavpur University, Kolkata, West Bengal, India.
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4
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Liu H, Ye J, Hu H, Song Y, Qiang H, Wang J, Zhou L, Wang X, Fei X, Zhu M. 3D stem cell spheroids with urchin-like hydroxyapatite microparticles enhance osteogenesis of stem cells. J Mater Chem B 2024; 12:1232-1243. [PMID: 38165170 DOI: 10.1039/d3tb02453a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2024]
Abstract
Cell therapy (also known as cell transplantation) has been considered promising as a next-generation living-cell therapy strategy to surpass the effects of traditional drugs. However, their practical clinical uses and product conversion are hampered by the unsatisfied viability and efficacy of the transplanted cells. Herein, we propose a synergistic enhancement strategy to address these issues by constructing 3D stem cell spheroids integrated with urchin-like hydroxyapatite microparticles (uHA). Specifically, cell-sized uHA microparticles were synthesized via a simple hydrothermal method using glutamic acid (Glu, E) as the co-template with good biocompatibility and structural antimicrobial performance (denoted as E-uHA). Combining with a hanging drop method, stem cell spheroids integrated with E-uHA were successfully obtained by culturing bone marrow mesenchymal stem cells (BMSCs) with a low concentration of the E-uHA suspensions (10 μg mL-1). The resulting composite spheroids of BMSCs/E-uHA deliver a high cellular viability, migration activity, and a superior osteogenic property compared to the 2D cultured counterpart or other BMSC spheroids. This work provides an effective strategy for integrating a secondary bio-functional component into stem cell spheroids for designing more cell therapy options with boosted cellular viability and therapeutic effect.
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Affiliation(s)
- Hongmei Liu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China.
| | - Jianxin Ye
- Department of Orthopedics, Shanghai General Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200080, China
| | - Hui Hu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China.
| | - Yuheng Song
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China.
| | - Huijun Qiang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China.
| | - Junjun Wang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China.
| | - Lei Zhou
- Department of Orthopedics, Shanghai General Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200080, China
| | - Xuefen Wang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China.
| | - Xiang Fei
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China.
- Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, Donghua University, Shanghai 201620, China
| | - Meifang Zhu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China.
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Velusamy A, Sharma R, Rashid SA, Ogasawara H, Salaita K. DNA mechanocapsules for programmable piconewton responsive drug delivery. Nat Commun 2024; 15:704. [PMID: 38267454 PMCID: PMC10808132 DOI: 10.1038/s41467-023-44061-w] [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: 01/04/2023] [Accepted: 11/29/2023] [Indexed: 01/26/2024] Open
Abstract
The mechanical dysregulation of cells is associated with a number of disease states, that spans from fibrosis to tumorigenesis. Hence, it is highly desirable to develop strategies to deliver drugs based on the "mechanical phenotype" of a cell. To achieve this goal, we report the development of DNA mechanocapsules (DMC) comprised of DNA tetrahedrons that are force responsive. Modeling shows the trajectory of force-induced DMC rupture and predicts how applied force spatial position and orientation tunes the force-response threshold. DMCs functionalized with adhesion ligands mechanically denature in vitro as a result of cell receptor forces. DMCs are designed to encapsulate macromolecular cargos such as dextran and oligonucleotide drugs with minimal cargo leakage and high nuclease resistance. Force-induced release and uptake of DMC cargo is validated using flow cytometry. Finally, we demonstrate force-induced mRNA knockdown of HIF-1α in a manner that is dependent on the magnitude of cellular traction forces. These results show that DMCs can be effectively used to target biophysical phenotypes which may find useful applications in immunology and cancer biology.
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Affiliation(s)
| | - Radhika Sharma
- Department of Chemistry, Emory University, Atlanta, GA, USA
| | | | | | - Khalid Salaita
- Department of Chemistry, Emory University, Atlanta, GA, USA.
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, GA, USA.
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6
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Frey N, Ouologuem L, Blenninger J, Siow WX, Thorn-Seshold J, Stöckl J, Abrahamian C, Fröhlich T, Vollmar AM, Grimm C, Bartel K. Endolysosomal TRPML1 channel regulates cancer cell migration by altering intracellular trafficking of E-cadherin and β 1-integrin. J Biol Chem 2024; 300:105581. [PMID: 38141765 PMCID: PMC10825694 DOI: 10.1016/j.jbc.2023.105581] [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: 05/26/2023] [Revised: 11/23/2023] [Accepted: 12/04/2023] [Indexed: 12/25/2023] Open
Abstract
Metastasis still accounts for 90% of all cancer-related death cases. An increase of cellular mobility and invasive traits of cancer cells mark two crucial prerequisites of metastasis. Recent studies highlight the involvement of the endolysosomal cation channel TRPML1 in cell migration. Our results identified a widely antimigratory effect upon loss of TRPML1 function in a panel of cell lines in vitro and reduced dissemination in vivo. As mode-of-action, we established TRPML1 as a crucial regulator of cytosolic calcium levels, actin polymerization, and intracellular trafficking of two promigratory proteins: E-cadherin and β1-integrin. Interestingly, KO of TRPML1 differentially interferes with the recycling process of E-cadherin and β1-integrin in a cell line-dependant manner, while resulting in the same phenotype of decreased migratory and adhesive capacities in vitro. Additionally, we observed a coherence between reduction of E-cadherin levels at membrane site and phosphorylation of NF-κB in a β-catenin/p38-mediated manner. As a result, an E-cadherin/NF-κB feedback loop is generated, regulating E-cadherin expression on a transcriptional level. Consequently, our findings highlight the role of TRPML1 as a regulator in migratory processes and suggest the ion channel as a suitable target for the inhibition of migration and invasion.
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Affiliation(s)
- Nadine Frey
- Department of Pharmacy, Pharmaceutical Biology, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Lina Ouologuem
- Department of Pharmacy, Pharmaceutical Biology, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Julia Blenninger
- Department of Pharmacy, Pharmaceutical Biology, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Wei-Xiong Siow
- Department of Pharmacy, Pharmaceutical Biology, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Julia Thorn-Seshold
- Department of Pharmacy, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Jan Stöckl
- Gene Center, Laboratory for Functional Genome Analysis, Ludwig Maximilians-University Munich, Munich, Germany
| | - Carla Abrahamian
- Walther-Straub-Institute of Pharmacology and Toxicology, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Thomas Fröhlich
- Gene Center, Laboratory for Functional Genome Analysis, Ludwig Maximilians-University Munich, Munich, Germany
| | - Angelika M Vollmar
- Department of Pharmacy, Pharmaceutical Biology, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Christian Grimm
- Walther-Straub-Institute of Pharmacology and Toxicology, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Karin Bartel
- Department of Pharmacy, Pharmaceutical Biology, Ludwig-Maximilians-University Munich, Munich, Germany.
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7
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Phillips AT, Boumil EF, Venkatesan A, Tilstra-Smith C, Castro N, Knox BE, Henty-Ridilla JL, Bernstein AM. The formin DAAM1 regulates the deubiquitinase activity of USP10 and integrin homeostasis. Eur J Cell Biol 2023; 102:151347. [PMID: 37562219 PMCID: PMC10839120 DOI: 10.1016/j.ejcb.2023.151347] [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: 07/12/2022] [Revised: 08/02/2023] [Accepted: 08/04/2023] [Indexed: 08/12/2023] Open
Abstract
The differentiation of fibroblasts into pathological myofibroblasts during wound healing is characterized by increased cell surface expression of αv-integrins. Our previous studies found that the deubiquitinase (DUB) USP10 removes ubiquitin from αv-integrins, leading to cell surface integrin accumulation, subsequent TGFβ1 activation, and pathological myofibroblast differentiation. In this study, a yeast two-hybrid screen revealed a novel binding partner for USP10, the formin, DAAM1. We found that DAAM1 binds to and inhibits USP10's DUB activity through the FH2 domain of DAAM1 independent of its actin functions. The USP10/DAAM1 interaction was also supported by proximity ligation assay (PLA) in primary human corneal fibroblasts. Treatment with TGFβ1 significantly increased USP10 and DAAM1 protein expression, PLA signal, and co-localization to actin stress fibers. DAAM1 siRNA knockdown significantly reduced co-precipitation of USP10 and DAAM1 on purified actin stress fibers, and β1- and β5-integrin ubiquitination. This resulted in increased αv-, β1-, and β5-integrin total protein levels, αv-integrin recycling, and extracellular fibronectin (FN) deposition. Together, our data demonstrate that DAAM1 inhibits USP10's DUB activity on integrins subsequently regulating cell surface αv-integrin localization and FN accumulation.
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Affiliation(s)
- Andrew T Phillips
- SUNY Upstate Medical University, Department of Ophthalmology and Visual Sciences, 750 East Adams Street, Syracuse, NY 13210, USA
| | - Edward F Boumil
- SUNY Upstate Medical University, Department of Ophthalmology and Visual Sciences, 750 East Adams Street, Syracuse, NY 13210, USA
| | - Arunkumar Venkatesan
- SUNY Upstate Medical University, Department of Ophthalmology and Visual Sciences, 750 East Adams Street, Syracuse, NY 13210, USA
| | - Christine Tilstra-Smith
- SUNY Upstate Medical University, Department of Ophthalmology and Visual Sciences, 750 East Adams Street, Syracuse, NY 13210, USA
| | - Nileyma Castro
- SUNY Upstate Medical University, Department of Ophthalmology and Visual Sciences, 750 East Adams Street, Syracuse, NY 13210, USA; New York VA Health Care, Syracuse VA Medical Center, 800 Irving Ave, Syracuse 13210, USA
| | - Barry E Knox
- SUNY Upstate Medical University, Department of Ophthalmology and Visual Sciences, 750 East Adams Street, Syracuse, NY 13210, USA; SUNY Upstate Medical University, Biochemistry and Molecular Biology, 750 East Adams Street, Syracuse, NY 13210, USA
| | - Jessica L Henty-Ridilla
- SUNY Upstate Medical University, Biochemistry and Molecular Biology, 750 East Adams Street, Syracuse, NY 13210, USA
| | - Audrey M Bernstein
- SUNY Upstate Medical University, Department of Ophthalmology and Visual Sciences, 750 East Adams Street, Syracuse, NY 13210, USA; SUNY Upstate Medical University, Biochemistry and Molecular Biology, 750 East Adams Street, Syracuse, NY 13210, USA; New York VA Health Care, Syracuse VA Medical Center, 800 Irving Ave, Syracuse 13210, USA.
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8
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Georgiev SV, Rizzoli SO. The long-loop recycling (LLR) of synaptic components as a question of economics. Mol Cell Neurosci 2023; 126:103862. [PMID: 37236414 DOI: 10.1016/j.mcn.2023.103862] [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: 02/28/2023] [Revised: 05/15/2023] [Accepted: 05/19/2023] [Indexed: 05/28/2023] Open
Abstract
The pre- and post-synaptic compartments contain a variety of molecules that are known to recycle between the plasma membrane and intracellular organelles. The recycling steps have been amply described in functional terms, with, for example, synaptic vesicle recycling being essential for neurotransmitter release, and postsynaptic receptor recycling being a fundamental feature of synaptic plasticity. However, synaptic protein recycling may also serve a more prosaic role, simply ensuring the repeated use of specific components, thereby minimizing the energy expenditure on the synthesis of synaptic proteins. This type of process has been recently described for components of the extracellular matrix, which undergo long-loop recycling (LLR), to and from the cell body. Here we suggest that the energy-saving recycling of synaptic components may be more widespread than is generally acknowledged, potentially playing a role in both synaptic vesicle protein usage and postsynaptic receptor metabolism.
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Affiliation(s)
- Svilen Veselinov Georgiev
- University Medical Center Göttingen, Institute for Neuro- and Sensory Physiology, Germany; International Max Planck Research School for Neuroscience, Göttingen, Germany.
| | - Silvio O Rizzoli
- University Medical Center Göttingen, Institute for Neuro- and Sensory Physiology, Germany; Biostructural Imaging of Neurodegeneration (BIN) Center, Göttingen, Germany; Excellence Cluster Multiscale Bioimaging, Göttingen, Germany.
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9
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Macke AJ, Pachikov AN, Divita TE, Morris ME, LaGrange CA, Holzapfel MS, Kubyshkin AV, Zyablitskaya EY, Makalish TP, Eremenko SN, Qiu H, Riethoven JJM, Hemstreet GP, Petrosyan AA. Targeting the ATF6-Mediated ER Stress Response and Autophagy Blocks Integrin-Driven Prostate Cancer Progression. Mol Cancer Res 2023; 21:958-974. [PMID: 37314749 PMCID: PMC10527559 DOI: 10.1158/1541-7786.mcr-23-0108] [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: 02/17/2023] [Revised: 04/27/2023] [Accepted: 06/09/2023] [Indexed: 06/15/2023]
Abstract
Prostate cancer progression to the lethal metastatic castration-resistant phenotype (mCRPC) is driven by αv integrins and is associated with Golgi disorganization and activation of the ATF6 branch of unfolded protein response (UPR). Overexpression of integrins requires N-acetylglucosaminyltransferase-V (MGAT5)-mediated glycosylation and subsequent cluster formation with Galectin-3 (Gal-3). However, the mechanism underlying this altered glycosylation is missing. For the first time, using HALO analysis of IHC, we found a strong association of integrin αv and Gal-3 at the plasma membrane (PM) in primary prostate cancer and mCRPC samples. We discovered that MGAT5 activation is caused by Golgi fragmentation and mislocalization of its competitor, N-acetylglucosaminyltransferase-III, MGAT3, from Golgi to the endoplasmic reticulum (ER). This was validated in an ethanol-induced model of ER stress, where alcohol treatment in androgen-refractory PC-3 and DU145 cells or alcohol consumption in patient with prostate cancer samples aggravates Golgi scattering, activates MGAT5, and enhances integrin expression at PM. This explains known link between alcohol consumption and prostate cancer mortality. ATF6 depletion significantly blocks UPR and reduces the number of Golgi fragments in both PC-3 and DU145 cells. Inhibition of autophagy by hydroxychloroquine (HCQ) restores compact Golgi, rescues MGAT3 intra-Golgi localization, blocks glycan modification via MGAT5, and abrogates delivery of Gal-3 to the cell surface. Importantly, the loss of Gal-3 leads to reduced integrins at PM and their accelerated internalization. ATF6 depletion and HCQ treatment synergistically decrease integrin αv and Gal-3 expression and temper orthotopic tumor growth and metastasis. IMPLICATIONS Combined ablation of ATF6 and autophagy can serve as new mCRPC therapeutic.
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Affiliation(s)
- Amanda J. Macke
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, USA, 68198
- The Fred and Pamela Buffett Cancer Center, Omaha, NE, USA, 68198
| | - Artem N. Pachikov
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, USA, 68198
- The Fred and Pamela Buffett Cancer Center, Omaha, NE, USA, 68198
| | - Taylor E. Divita
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, USA, 68198
- The Fred and Pamela Buffett Cancer Center, Omaha, NE, USA, 68198
| | - Mary E. Morris
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, USA, 68198
| | - Chad A. LaGrange
- Division of Urologic Surgery, Department of Surgery, University of Nebraska Medical Center, Omaha, NE, USA, 68198
| | - Melissa S. Holzapfel
- Department of Pathology and Microbiology, University of Nebraska Medical Center, Omaha, NE, USA, 68198
| | - Anatoly V. Kubyshkin
- Department of Pathological Physiology, Medical Academy named after S. I. Georgievsky, V. I. Vernadsky Crimean Federal University, Simferopol, Russia, 295051
| | - Evgeniya Y. Zyablitskaya
- Laboratory of Molecular Biology, Medical Academy named after S. I. Georgievsky, V. I. Vernadsky Crimean Federal University, Simferopol, Russia, 295051
| | - Tatiana P. Makalish
- Laboratory of Molecular Biology, Medical Academy named after S. I. Georgievsky, V. I. Vernadsky Crimean Federal University, Simferopol, Russia, 295051
| | - Sergey N. Eremenko
- Saint Luc’s Clinique, V. I. Vernadsky Crimean Federal University, Simferopol, Russia, 295051
| | - Haowen Qiu
- Center for Biotechnology, University of Nebraska-Lincoln, Lincoln, NE, USA, 68588
| | - Jean-Jack M. Riethoven
- Center for Biotechnology, University of Nebraska-Lincoln, Lincoln, NE, USA, 68588
- Department of Statistics, University of Nebraska-Lincoln, Lincoln, NE, USA, 68588
| | - George P. Hemstreet
- Division of Urologic Surgery, Department of Surgery, University of Nebraska Medical Center, Omaha, NE, USA, 68198
- Omaha Western Iowa Health Care System Urology, VA Service, Department of Research Service, Omaha, NE, USA, 68105
| | - and Armen Petrosyan
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, USA, 68198
- The Fred and Pamela Buffett Cancer Center, Omaha, NE, USA, 68198
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10
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Maldonado H, Leyton L. CSK-mediated signalling by integrins in cancer. Front Cell Dev Biol 2023; 11:1214787. [PMID: 37519303 PMCID: PMC10382208 DOI: 10.3389/fcell.2023.1214787] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2023] [Accepted: 06/19/2023] [Indexed: 08/01/2023] Open
Abstract
Cancer progression and metastasis are processes heavily controlled by the integrin receptor family. Integrins are cell adhesion molecules that constitute the central components of mechanosensing complexes called focal adhesions, which connect the extracellular environment with the cell interior. Focal adhesions act as key players in cancer progression by regulating biological processes, such as cell migration, invasion, proliferation, and survival. Src family kinases (SFKs) can interplay with integrins and their downstream effectors. SFKs also integrate extracellular cues sensed by integrins and growth factor receptors (GFR), transducing them to coordinate metastasis and cell survival in cancer. The non-receptor tyrosine kinase CSK is a well-known SFK member that suppresses SFK activity by phosphorylating its specific negative regulatory loop (C-terminal Y527 residue). Consequently, CSK may play a pivotal role in tumour progression and suppression by inhibiting SFK oncogenic effects in several cancer types. Remarkably, CSK can localise near focal adhesions when SFKs are activated and even interact with focal adhesion components, such as phosphorylated FAK and Paxillin, among others, suggesting that CSK may regulate focal adhesion dynamics and structure. Even though SFK oncogenic signalling has been extensively described before, the specific role of CSK and its crosstalk with integrins in cancer progression, for example, in mechanosensing, remain veiled. Here, we review how CSK, by regulating SFKs, can regulate integrin signalling, and focus on recent discoveries of mechanotransduction. We additionally examine the cross talk of integrins and GFR as well as the membrane availability of these receptors in cancer. We also explore new pharmaceutical approaches to these signalling pathways and analyse them as future therapeutic targets.
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Affiliation(s)
- Horacio Maldonado
- Receptor Dynamics in Cancer Laboratory, Institute of Systems, Molecular and Integrative Biology, University of Liverpool, Liverpool, United Kingdom
| | - Lisette Leyton
- Cellular Communication Laboratory, Programa de Biología Celular y Molecular, Center for Studies on Exercise, Metabolism and Cancer (CEMC), Instituto de Ciencias Biomédicas (ICBM), Facultad de Medicina, Universidad de Chile, Santiago, Chile
- Advanced Center for Chronic Diseases (ACCDiS), Faculty of Chemical and Pharmaceutical Sciences and Faculty of Medicine, Universidad de Chile, Santiago, Chile
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11
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Zehrbach NM, Dubois F, Turner CE. Paxillin regulates Rab5-mediated vesicle motility through modulating microtubule acetylation. Mol Biol Cell 2023; 34:ar65. [PMID: 37043310 PMCID: PMC10295489 DOI: 10.1091/mbc.e22-10-0455] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Revised: 04/04/2023] [Accepted: 04/06/2023] [Indexed: 04/13/2023] Open
Abstract
Rab GTPase-mediated vesicle trafficking of cell surface proteins, including integrins, through endocytic and recycling pathways is important in controlling cell-extracellular matrix interactions during cell migration. The focal adhesion adaptor protein, paxillin, plays a central role in regulating adhesion dynamics and was previously shown to promote anterograde vesicle trafficking through modulation of microtubule acetylation via its inhibition of the deacetylase HDAC6. The role of paxillin in retrograde trafficking is unknown. Herein, we identified a role for paxillin in the modulation of the Rab5 GTPase, which is necessary for regulating early endosome dynamics and focal adhesion turnover. Using MDA-MB-231 breast cancer cells and paxillin (-/-) fibroblasts, paxillin was shown to impact Rab5-associated vesicle size and distribution, as well as Rab5 GTPase activity, through its modulation of HDAC6. Using a combination of real-time imaging and particle tracking analysis, paxillin was shown to promote Rab5-associated vesicle motility through inhibition of HDAC6-mediated micro-tubule deacetylation, along with the localization of active integrin to focal adhesions.
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Affiliation(s)
- Nicholas M. Zehrbach
- Department of Cell and Developmental Biology, State University of New York Upstate Medical University, Syracuse, NY 13210
| | - Fatemeh Dubois
- Department of Cell and Developmental Biology, State University of New York Upstate Medical University, Syracuse, NY 13210
| | - Christopher E. Turner
- Department of Cell and Developmental Biology, State University of New York Upstate Medical University, Syracuse, NY 13210
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12
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Mieczkowski K, Popeda M, Lesniak D, Sadej R, Kitowska K. FGFR2 Controls Growth, Adhesion and Migration of Nontumorigenic Human Mammary Epithelial Cells by Regulation of Integrin β1 Degradation. J Mammary Gland Biol Neoplasia 2023; 28:9. [PMID: 37191822 DOI: 10.1007/s10911-023-09537-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Accepted: 04/26/2023] [Indexed: 05/17/2023] Open
Abstract
The role of fibroblast growth factor receptor 2 (FGFR2), an important mediator of stromal paracrine and autocrine signals, in mammary gland morphogenesis and breast cancer has been extensively studied over the last years. However, the function of FGFR2 signalling in the initiation of mammary epithelial oncogenic transformation remains elusive. Here, FGFR2-dependent behaviour of nontumorigenic model of mammary epithelial cells was studied. In vitro analyses demonstrated that FGFR2 regulates epithelial cell communication with extracellular matrix (ECM) proteins. Silencing of FGFR2 significantly changed the phenotype of cell colonies in three-dimensional cultures, decreased integrins α2, α5 and β1 protein levels and affected integrin-driven processes, such as cell adhesion and migration. More detailed analysis revealed the FGFR2 knock-down-induced proteasomal degradation of integrin β1. Analysis of RNA-seq databases showed significantly decreased FGFR2 and ITGB1 mRNA levels in breast tumour samples, when compared to non-transformed tissues. Additionally, high risk healthy individuals were found to have disrupted correlation profiles of genes associated with FGFR2 and integrin signalling, cell adhesion/migration and ECM remodelling. Taken together, our results strongly suggest that FGFR2 loss with concomitant integrin β1 degradation is responsible for deregulation of epithelial cell-ECM interactions and this process may play an important role in the initiation of mammary gland epithelial tumorigenesis.
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Affiliation(s)
- Kamil Mieczkowski
- Department of Molecular Enzymology and Oncology, Intercollegiate Faculty of Biotechnology, University of Gdansk and Medical University of Gdansk, Gdansk, Poland.
- Laboratory Genes and Disease, Department of Dermatology, Medical University of Vienna, Vienna, Austria.
| | - Marta Popeda
- Laboratory of Translational Oncology, Intercollegiate Faculty of Biotechnology, Medical University of Gdansk, Gdansk, Poland
- Department of Pathomorphology, Medical University of Gdansk, Gdansk, Poland
| | - Dagmara Lesniak
- Department of Molecular Enzymology and Oncology, Intercollegiate Faculty of Biotechnology, University of Gdansk and Medical University of Gdansk, Gdansk, Poland
| | - Rafal Sadej
- Department of Molecular Enzymology and Oncology, Intercollegiate Faculty of Biotechnology, University of Gdansk and Medical University of Gdansk, Gdansk, Poland
| | - Kamila Kitowska
- Department of Molecular Enzymology and Oncology, Intercollegiate Faculty of Biotechnology, University of Gdansk and Medical University of Gdansk, Gdansk, Poland.
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13
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Huet-Calderwood C, Rivera-Molina F, Toomre D, Calderwood DA. Use of Ecto-Tagged Integrins to Monitor Integrin Exocytosis and Endocytosis. Methods Mol Biol 2023; 2608:17-38. [PMID: 36653699 PMCID: PMC9999384 DOI: 10.1007/978-1-0716-2887-4_2] [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] [Indexed: 01/19/2023]
Abstract
Controlled exocytosis and endocytosis of integrin adhesion receptors is required for normal cell adhesion, migration, and signaling. In this chapter, we describe the design of functional β1 integrins carrying extracellular fluorescent or chemically traceable tags (ecto-tag) and methods for their use to image β1 integrin trafficking in cells. We provide approaches to generate cells in which endogenous β1 integrins are replaced by ecto-tagged integrins containing a pH-sensitive fluorophore pHluorin or a HaloTag and describe strategies using photobleaching, selective extracellular/intracellular labeling, and chase, quenching, and blocking to reveal β1 integrin exocytosis, endocytosis, and recycling by live total internal reflection fluorescence (TIRF) microscopy.
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Affiliation(s)
- Clotilde Huet-Calderwood
- Departments of Pharmacology, Yale University School of Medicine, Yale University, New Haven, CT, USA
| | - Felix Rivera-Molina
- Departments of Cell Biology, Yale University School of Medicine, Yale University, New Haven, CT, USA
| | - Derek Toomre
- Departments of Cell Biology, Yale University School of Medicine, Yale University, New Haven, CT, USA
| | - David A Calderwood
- Departments of Pharmacology, Yale University School of Medicine, Yale University, New Haven, CT, USA.
- Departments of Cell Biology, Yale University School of Medicine, Yale University, New Haven, CT, USA.
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14
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Drebrin promotes lung adenocarcinoma cell migration through inducing integrin β1 endocytosis. Biochem Biophys Res Commun 2022; 630:175-182. [PMID: 36155064 DOI: 10.1016/j.bbrc.2022.09.050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 09/01/2022] [Accepted: 09/12/2022] [Indexed: 11/22/2022]
Abstract
Lung adenocarcinoma (LUAD) is the most common type of lung cancers, which remains the leading cause of cancer-related death worldwide. Drebrin can promote cell migration and invasion with poor prognosis, but its roes in LUAD tumor progression remains unknown. We showed that the expression of Drebrin was upregulated in clinical LUAD samples. A Kaplan-Meier survival analysis showed that a high expression of Drebrin predicated poor prognosis in LUAD. In vitro, Drebrin promoted anchorage-independent growth and migration of LUAD cells. Drebrin interacted with dynamin through CT domain, and served as an adaptor to promote LUAD cell migration through inducing integrin β1 endocytosis. Thus, this study demonstrated the critical role of Drebrin in LUAD and associated mechanism.
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15
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Meecham A, Cutmore LC, Protopapa P, Rigby LG, Marshall JF. Ligand-bound integrin αvβ6 internalisation and trafficking. Front Cell Dev Biol 2022; 10:920303. [PMID: 36092709 PMCID: PMC9448872 DOI: 10.3389/fcell.2022.920303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Accepted: 07/14/2022] [Indexed: 11/13/2022] Open
Abstract
The integrin αvβ6 is expressed at low levels in most normal healthy tissue but is very often upregulated in a disease context including cancer and fibrosis. Integrins use endocytosis and trafficking as a means of regulating their surface expression and thus their functions, however little is known of how this process is regulated in the context of αvβ6. As αvβ6 is a major target for the development of therapeutics in cancer and fibrosis, understanding these dynamics is critical in the development of αvβ6-targeted therapies. Following development of a flow cytometry-based assay to measure ligand (A20FMDV2 or LAP)-bound αvβ6 endocytosis, an siRNA screen was performed to identify which genes were responsible for internalising αvβ6. These data identified 15 genes (DNM2, CBLB, DNM3, CBL, EEA1, CLTC, ARFGAP3, CAV1, CYTH2, CAV3, CAV2, IQSEC1, AP2M1, TSG101) which significantly decreased endocytosis, predominantly within dynamin-dependent pathways. Inhibition of these dynamin-dependent pathways significantly reduced αvβ6-dependent migration (αvβ6-specific migration was 547 ± 128 under control conditions, reduced to 225 ± 73 with clathrin inhibition, and 280 ± 51 with caveolin inhibition). Colocalization studies of αvβ6 with endosome markers revealed that up to 6 h post-internalisation of ligand, αvβ6 remains in Rab11-positive endosomes in a perinuclear location, with no evidence of αvβ6 degradation up to 48 h post exposure to A20FMDV2. Additionally, 60% of ligand-bound αvβ6 was recycled back to the surface by 6 h. With studies ongoing using conjugated A20FMDV2 to therapeutically target αvβ6 in cancer and fibrosis, these data have important implications. Binding of A20FMDV2 seemingly removes much of the αvβ6 from the cell membrane, and upon its recycling, a large fraction appears to still be in the ligand-bound state. While these results are observed with A20FMDV2, these data will be of value in the design of αvβ6-specific therapeutics and potentially the types of therapeutic load.
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Affiliation(s)
- Amelia Meecham
- Centre for Tumour Biology, Barts Cancer Institute, Queen Mary University of London, London, United Kingdom
- University of California, San Diego, San Diego, CA, United States
| | - Lauren C. Cutmore
- Centre for Tumour Biology, Barts Cancer Institute, Queen Mary University of London, London, United Kingdom
| | - Pantelitsa Protopapa
- Centre for Tumour Biology, Barts Cancer Institute, Queen Mary University of London, London, United Kingdom
| | - Lauren G. Rigby
- Centre for Tumour Biology, Barts Cancer Institute, Queen Mary University of London, London, United Kingdom
| | - John F. Marshall
- Centre for Tumour Biology, Barts Cancer Institute, Queen Mary University of London, London, United Kingdom
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16
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Yoon HY, Maron BY, Girald-Berlingeri S, Gasilina A, Gollin JC, Jian X, Akpan I, Yohe ME, Randazzo PA, Chen PW. ERK phosphorylation is dependent on cell adhesion in a subset of pediatric sarcoma cell lines. BIOCHIMICA ET BIOPHYSICA ACTA. MOLECULAR CELL RESEARCH 2022; 1869:119264. [PMID: 35381293 DOI: 10.1016/j.bbamcr.2022.119264] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2021] [Revised: 03/15/2022] [Accepted: 03/28/2022] [Indexed: 06/14/2023]
Abstract
Osteosarcoma (OS) and Pax-Foxo1 fusion negative rhabdomyosarcoma (FN-RMS) are pediatric sarcomas with poor prognoses in patients with advanced disease. In both malignancies, an actin binding protein has been linked to poor prognosis. Integrin adhesion complexes (IACs) are closely coupled to actin networks and IAC-mediated signaling has been implicated in the progression of carcinomas. However, the relationship of IACs and actin cytoskeleton remodeling with cell signaling is understudied in pediatric sarcomas. Here, we tested the hypothesis that IAC dynamics affect ERK activation in OS and FN-RMS cell lines. Adhesion dependence of ERK activation differed among the OS and FN-RMS cells examined. In the OS cell lines, adhesion did not have a consistent effect on phospho-ERK (pERK). ERK phosphorylation in response to fetal calf serum or 1 ng/ml EGF was nearly as efficient in OS cell lines and one FN-RMS cell line in suspension as cells adherent to poly-l-lysine (PL) or fibronectin (FN). By contrast, adhesion to plastic, PL or FN increased ERK phosphorylation and was greater than additive with a 15 min exposure to 1 ng/ml EGF in three FN-RMS cell lines. Increases in pERK were partly dependent on FAK and PAK1/2 but independent of IAC maturation. As far as we are aware, this examination of adhesion-dependent signaling is the first in pediatric sarcomas and has led to the discovery of differences from the prevailing paradigms and differences in the degree of coupling between components in the signaling pathways among the cell lines.
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Affiliation(s)
- Hye-Young Yoon
- Laboratory of Cellular and Molecular Biology, Center for Cancer Research, National Cancer Institute, Bethesda, MD, United States of America
| | - Ben Y Maron
- Department of Biology, Williams College, Williamstown, MA, United States of America
| | - Sofia Girald-Berlingeri
- Laboratory of Cellular and Molecular Biology, Center for Cancer Research, National Cancer Institute, Bethesda, MD, United States of America
| | - Anjelika Gasilina
- Laboratory of Cellular and Molecular Biology, Center for Cancer Research, National Cancer Institute, Bethesda, MD, United States of America
| | - Josephine C Gollin
- Department of Biology, Williams College, Williamstown, MA, United States of America
| | - Xiaoying Jian
- Laboratory of Cellular and Molecular Biology, Center for Cancer Research, National Cancer Institute, Bethesda, MD, United States of America
| | - Itoro Akpan
- Laboratory of Cellular and Molecular Biology, Center for Cancer Research, National Cancer Institute, Bethesda, MD, United States of America
| | - Marielle E Yohe
- Laboratory of Cell and Developmental Signaling, Center for Cancer Research, National Cancer Institute, Frederick, MD, United States of America
| | - Paul A Randazzo
- Laboratory of Cellular and Molecular Biology, Center for Cancer Research, National Cancer Institute, Bethesda, MD, United States of America.
| | - Pei-Wen Chen
- Department of Biology, Williams College, Williamstown, MA, United States of America
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17
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Filhol O, Hesse AM, Bouin AP, Albigès-Rizo C, Jeanneret F, Battail C, Pflieger D, Cochet C. CK2β Is a Gatekeeper of Focal Adhesions Regulating Cell Spreading. Front Mol Biosci 2022; 9:900947. [PMID: 35847979 PMCID: PMC9280835 DOI: 10.3389/fmolb.2022.900947] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Accepted: 05/02/2022] [Indexed: 11/13/2022] Open
Abstract
CK2 is a hetero-tetrameric serine/threonine protein kinase made up of two CK2α/αʹ catalytic subunits and two CK2β regulatory subunits. The free CK2α subunit and the tetrameric holoenzyme have distinct substrate specificity profiles, suggesting that the spatiotemporal organization of the individual CK2 subunits observed in living cells is crucial in the control of the many cellular processes that are governed by this pleiotropic kinase. Indeed, previous studies reported that the unbalanced expression of CK2 subunits is sufficient to drive epithelial to mesenchymal transition (EMT), a process involved in cancer invasion and metastasis. Moreover, sub-stoichiometric expression of CK2β compared to CK2α in a subset of breast cancer tumors was correlated with the induction of EMT markers and increased epithelial cell plasticity in breast carcinoma progression. Phenotypic changes of epithelial cells are often associated with the activation of phosphotyrosine signaling. Herein, using phosphotyrosine enrichment coupled with affinity capture and proteomic analysis, we show that decreased expression of CK2β in MCF10A mammary epithelial cells triggers the phosphorylation of a number of proteins on tyrosine residues and promotes the striking activation of the FAK1-Src-PAX1 signaling pathway. Moreover, morphometric analyses also reveal that CK2β loss increases the number and the spatial distribution of focal adhesion signaling complexes that coordinate the adhesive and migratory processes. Together, our findings allow positioning CK2β as a gatekeeper for cell spreading by restraining focal adhesion formation and invasion of mammary epithelial cells.
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Affiliation(s)
- Odile Filhol
- Univ. Grenoble Alpes, INSERM, CEA, UMR Biosanté, U1292, Grenoble, France
| | - Anne-Marie Hesse
- Univ. Grenoble Alpes, INSERM, CEA, UMR Biosanté U1292, CNRS FR 2048, Grenoble, France
| | - Anne-Pascale Bouin
- Univ. Grenoble Alpes, INSERM U1209, CNRS 5309, Institute for Advanced Biosciences (IAB), Grenoble, France
| | - Corinne Albigès-Rizo
- Univ. Grenoble Alpes, INSERM U1209, CNRS 5309, Institute for Advanced Biosciences (IAB), Grenoble, France
| | - Florian Jeanneret
- Univ. Grenoble Alpes, INSERM, CEA, UMR Biosanté, U1292, Grenoble, France
| | - Christophe Battail
- Univ. Grenoble Alpes, INSERM, CEA, UMR Biosanté, U1292, Grenoble, France
| | - Delphine Pflieger
- Univ. Grenoble Alpes, INSERM, CEA, UMR Biosanté U1292, CNRS FR 2048, Grenoble, France
- *Correspondence: Claude Cochet, ; Delphine Pflieger,
| | - Claude Cochet
- Univ. Grenoble Alpes, INSERM, CEA, UMR Biosanté, U1292, Grenoble, France
- *Correspondence: Claude Cochet, ; Delphine Pflieger,
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18
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Synthesis and evaluation of a novel adapter lipid derivative for preparation of cyclic peptide-modified PEGylated liposomes: Application of cyclic RGD peptide. Eur J Pharm Sci 2022; 176:106239. [PMID: 35714942 DOI: 10.1016/j.ejps.2022.106239] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Revised: 05/15/2022] [Accepted: 06/14/2022] [Indexed: 11/20/2022]
Abstract
Peptide ligand modified nanoparticles can simply prepared by post-insertion method to mix pre-formed nanoparticles with peptide-lipid conjugates in an aqueous solution at an optimal temperature. Therefore, water dispersibility of peptide-lipid conjugates is a very important factor for implementing the post-insertion method. We proposed that highly water dispersible peptide-lipid conjugates can be easily synthesized by separately designing novel adapter lipids with different water dispersibility and reacting them with ligands in a highly efficient manner. Adapter lipids have three critical roles; as spacers of ligand-conjugated lipids for efficient ligand presentation, as structures that form discrete molecular weight distributions, and as providing water dispersibility. In this study, we developed a novel adapter-lipid derivative that enables a variety of cyclic peptide modifications using the click reaction. The integrin αvβ3-targeted cyclic RGDfK (cRGD) peptide was selected as the cyclic peptide ligand. We designed a novel alkyne-tagged lipid with a discrete peptide spacer and bound the cRGD peptide using a click reaction to synthesize a cRGD-conjugated lipid with good water dispersibility for the preparation of cRGD-modified PEGylated liposomes using the post-insertion method. We also revealed that cRGD-modified PEGylated liposomes are efficiently associated with integrin αvβ3-expressing murine colon carcinoma (Colon-26) cells in a modification amount- and peptide sequence-dependent manner, showing high cytotoxicity upon loading with doxorubicin. This novel adapter lipid derivative can be used to synthesize various cyclic peptides by click reactions and will provide useful insights for the future development of cyclic peptide-modified PEGylated liposomes.
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19
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Sheikholeslami B, Lam NW, Dua K, Haghi M. Exploring the impact of physicochemical properties of liposomal formulations on their in vivo fate. Life Sci 2022; 300:120574. [DOI: 10.1016/j.lfs.2022.120574] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Revised: 04/12/2022] [Accepted: 04/18/2022] [Indexed: 12/16/2022]
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20
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Dankovich TM, Rizzoli SO. Extracellular Matrix Recycling as a Novel Plasticity Mechanism With a Potential Role in Disease. Front Cell Neurosci 2022; 16:854897. [PMID: 35431813 PMCID: PMC9008140 DOI: 10.3389/fncel.2022.854897] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Accepted: 02/09/2022] [Indexed: 11/13/2022] Open
Abstract
The extracellular matrix (ECM) stabilizes neural circuits and synapses in the healthy brain, while also retaining the ability to be remodeled, to allow synapses to be plastic. A well-described mechanism for ECM remodeling is through the regulated secretion of proteolytic enzymes at the synapse, together with the synthesis of new ECM molecules. The importance of this process is evidenced by the large number of brain disorders that are associated with a dysregulation of ECM-cleaving protease activity. While most of the brain ECM molecules are indeed stable for remarkable time periods, evidence in other cell types, as cancer cells, suggests that at least a proportion of the ECM molecules may be endocytosed regularly, and could even be recycled back to the ECM. In this review, we discuss the involvement of such a mechanism in the brain, under physiological activity conditions and in relation to synapse and brain disease.
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Affiliation(s)
- Tal M. Dankovich
- Institute of Neuro- and Sensory Physiology, University Medical Center Göttingen, Göttingen, Germany
- International Max Planck Research School for Neurosciences, Göttingen, Germany
- *Correspondence: Tal M. Dankovich,
| | - Silvio O. Rizzoli
- Institute of Neuro- and Sensory Physiology, University Medical Center Göttingen, Göttingen, Germany
- Biostructural Imaging of Neurodegeneration (BIN) Center & Multiscale Bioimaging Excellence Center, Göttingen, Germany
- Silvio O. Rizzoli,
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21
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Dankovich TM, Rizzoli SO. The Synaptic Extracellular Matrix: Long-Lived, Stable, and Still Remarkably Dynamic. Front Synaptic Neurosci 2022; 14:854956. [PMID: 35350469 PMCID: PMC8957932 DOI: 10.3389/fnsyn.2022.854956] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Accepted: 02/16/2022] [Indexed: 01/09/2023] Open
Abstract
In the adult brain, synapses are tightly enwrapped by lattices of the extracellular matrix that consist of extremely long-lived molecules. These lattices are deemed to stabilize synapses, restrict the reorganization of their transmission machinery, and prevent them from undergoing structural or morphological changes. At the same time, they are expected to retain some degree of flexibility to permit occasional events of synaptic plasticity. The recent understanding that structural changes to synapses are significantly more frequent than previously assumed (occurring even on a timescale of minutes) has called for a mechanism that allows continual and energy-efficient remodeling of the extracellular matrix (ECM) at synapses. Here, we review recent evidence for such a process based on the constitutive recycling of synaptic ECM molecules. We discuss the key characteristics of this mechanism, focusing on its roles in mediating synaptic transmission and plasticity, and speculate on additional potential functions in neuronal signaling.
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Affiliation(s)
- Tal M. Dankovich
- University Medical Center Göttingen, Institute for Neuro- and Sensory Physiology, Göttingen, Germany
- International Max Planck Research School for Neuroscience, Göttingen, Germany
- *Correspondence: Tal M. Dankovich Silvio O. Rizzoli
| | - Silvio O. Rizzoli
- University Medical Center Göttingen, Institute for Neuro- and Sensory Physiology, Göttingen, Germany
- Biostructural Imaging of Neurodegeneration (BIN) Center & Multiscale Bioimaging Excellence Center, Göttingen, Germany
- *Correspondence: Tal M. Dankovich Silvio O. Rizzoli
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22
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Patel A, Perl A. Redox Control of Integrin-Mediated Hepatic Inflammation in Systemic Autoimmunity. Antioxid Redox Signal 2022; 36:367-388. [PMID: 34036799 PMCID: PMC8982133 DOI: 10.1089/ars.2021.0068] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Revised: 05/12/2021] [Accepted: 05/13/2021] [Indexed: 12/20/2022]
Abstract
Significance: Systemic autoimmunity affects 3%-5% of the population worldwide. Systemic lupus erythematosus (SLE) is a prototypical form of such condition, which affects 20-150 of 100,000 people globally. Liver dysfunction, defined by increased immune cell infiltration into the hepatic parenchyma, is an understudied manifestation that affects up to 20% of SLE patients. Autoimmunity in SLE involves proinflammatory lineage specification in the immune system that occurs with oxidative stress and profound changes in cellular metabolism. As the primary metabolic organ of the body, the liver is uniquely capable to encounter oxidative stress through first-pass derivatization and filtering of waste products. Recent Advances: The traffic of immune cells from their development through recirculation in the liver is guided by cell adhesion molecules (CAMs) and integrins, cell surface proteins that tightly anchor cells together. The surface expression of CAMs and integrins is regulated via endocytic traffic that is sensitive to oxidative stress. Reactive oxygen species (ROS) that elicit oxidative stress in the liver may originate from the mitochondria, the cytosol, or the cell membrane. Critical Issues: While hepatic ROS production is a source of vulnerability, it also modulates the development and function of the immune system. In turn, the liver employs antioxidant defense mechanisms to protect itself from damage that can be harnessed to serve as therapeutic mechanisms against autoimmunity, inflammation, and development of hepatocellular carcinoma. Future Directions: This review is aimed at delineating redox control of integrin signaling in the liver and checkpoints of regulatory impact that can be targeted for treatment of inflammation in systemic autoimmunity. Antioxid. Redox Signal. 36, 367-388.
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Affiliation(s)
- Akshay Patel
- Division of Rheumatology, Department of Medicine, College of Medicine, State University of New York Upstate Medical University, Syracuse, New York, USA
- Department of Microbiology and Immunology, College of Medicine, State University of New York Upstate Medical University, Syracuse, New York, USA
- Department of Biochemistry and Molecular Biology, College of Medicine, State University of New York Upstate Medical University, Syracuse, New York, USA
| | - Andras Perl
- Division of Rheumatology, Department of Medicine, College of Medicine, State University of New York Upstate Medical University, Syracuse, New York, USA
- Department of Microbiology and Immunology, College of Medicine, State University of New York Upstate Medical University, Syracuse, New York, USA
- Department of Biochemistry and Molecular Biology, College of Medicine, State University of New York Upstate Medical University, Syracuse, New York, USA
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23
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Stanislovas J, Kermorgant S. c-Met-integrin cooperation: Mechanisms, tumorigenic effects, and therapeutic relevance. Front Cell Dev Biol 2022; 10:994528. [PMID: 36330337 PMCID: PMC9624249 DOI: 10.3389/fcell.2022.994528] [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] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Accepted: 08/23/2022] [Indexed: 11/13/2022] Open
Abstract
c-Met is a receptor tyrosine kinase which upon activation by its ligand, the hepatocyte growth factor, mediates many important signalling pathways that regulate cellular functions such as survival, proliferation, and migration. Its oncogenic and tumorigenic signalling mechanisms, greatly contributing to cancer development and progression, are well documented. Integrins, heterogeneous adhesion receptors which facilitate cell-extracellular matrix interactions, are important in biomechanically sensitive cell adhesion and motility but also modulate diverse cell behaviour. Here we review the studies which reported cooperation between c-Met and several integrins, particularly β1 and β4, in various cell models including many tumour cell types. From the various experimental models and results analysed, we propose that c-Met-integrin cooperation occurs via inside-out or outside-in signalling. Thus, either c-Met activation triggers integrin activation and cell adhesion or integrin adhesion to its extracellular ligand triggers c-Met activation. These two modes of cooperation require the adhesive function of integrins and mostly lead to cell migration and invasion. In a third, less conventional, mode of cooperation, the integrin plays the role of a signalling adaptor for c-Met, independently from its adhesive property, leading to anchorage independent survival. Recent studies have revealed the influence of endocytic trafficking in c-Met-integrin cooperation including the adaptor function of integrin occurring on endomembranes, triggering an inside-in signalling, believed to promote survival of metastatic cells. We present the evidence of the cooperation in vivo and in human tissues and highlight its therapeutic relevance. A better understanding of the mechanisms regulating c-Met-integrin cooperation in cancer progression could lead to the design of new therapies targeting this cooperation, providing more effective therapeutic approaches than c-Met or integrin inhibitors as monotherapies used in the clinic.
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Affiliation(s)
- Justas Stanislovas
- Spatial Signalling Group, John Vane Science Centre, Barts Cancer Institute, Queen Mary University of London, London, United Kingdom
| | - Stéphanie Kermorgant
- Spatial Signalling Group, John Vane Science Centre, Barts Cancer Institute, Queen Mary University of London, London, United Kingdom
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24
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Li X, Klausen LH, Zhang W, Jahed Z, Tsai CT, Li TL, Cui B. Nanoscale Surface Topography Reduces Focal Adhesions and Cell Stiffness by Enhancing Integrin Endocytosis. NANO LETTERS 2021; 21:8518-8526. [PMID: 34346220 PMCID: PMC8516714 DOI: 10.1021/acs.nanolett.1c01934] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
Both substrate stiffness and surface topography regulate cell behavior through mechanotransduction signaling pathways. Such intertwined effects suggest that engineered surface topographies might substitute or cancel the effects of substrate stiffness in biomedical applications. However, the mechanisms by which cells recognize topographical features are not fully understood. Here we demonstrate that the presence of nanotopography drastically alters cell behavior such that neurons and stem cells cultured on rigid glass substrates behave as if they were on soft hydrogels. With atomic force microscopy, we show that rigid nanotopography resembles the effects of soft hydrogels in reducing cell stiffness and membrane tension. Further, we reveal that nanotopography reduces focal adhesions and cell stiffness by enhancing the endocytosis and the subsequent removal of integrin receptors. This mechanistic understanding will support the rational design of nanotopography that directs cells on rigid materials to behave as if they were on soft ones.
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Affiliation(s)
- Xiao Li
- Department of Chemistry, Stanford University, Stanford, California 94305, United States
| | - Lasse H Klausen
- Department of Chemistry, Stanford University, Stanford, California 94305, United States
| | - Wei Zhang
- Department of Chemistry, Stanford University, Stanford, California 94305, United States
| | - Zeinab Jahed
- Department of Chemistry, Stanford University, Stanford, California 94305, United States
| | - Ching-Ting Tsai
- Department of Chemistry, Stanford University, Stanford, California 94305, United States
| | - Thomas L Li
- Department of Chemistry, Stanford University, Stanford, California 94305, United States
| | - Bianxiao Cui
- Department of Chemistry, Stanford University, Stanford, California 94305, United States
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25
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Caliva MJ, Yang WS, Young-Robbins S, Zhou M, Yoon H, Matter ML, Grimes ML, Conrads T, Ramos JW. Proteomics analysis identifies PEA-15 as an endosomal phosphoprotein that regulates α5β1 integrin endocytosis. Sci Rep 2021; 11:19830. [PMID: 34615962 PMCID: PMC8494857 DOI: 10.1038/s41598-021-99348-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Accepted: 09/20/2021] [Indexed: 12/15/2022] Open
Abstract
Endosomal trafficking of cell surface receptors is essential to their function. Integrins are transmembrane receptors that integrate adhesion to the extracellular matrix with engagement of the cytoskeleton. Ligated integrins mediate diverse signals that regulate matrix assembly, cell survival, cell morphology, and cell motility. Endosomal trafficking of integrins modulates these signals and contributes to cell motility and is required for cancer cell invasion. The phosphoprotein PEA-15 modulates integrin activation and ERK MAP Kinase signaling. To elucidate novel PEA-15 functions we utilized an unbiased proteomics approach. We identified several binding partners for PEA-15 in the endosome including clathrin and AP-2 as well as integrin β1 and other focal adhesion complex proteins. We confirmed these interactions using proximity ligation analysis, immunofluorescence imaging, pull-down and co-immunoprecipitation. We further found that PEA-15 is enriched in endosomes and was required for efficient endosomal internalization of α5β1 integrin and cellular migration. Importantly, PEA-15 promotion of migration was dependent on PEA-15 phosphorylation at serines 104 and 116. These data support a novel endosomal role for PEA-15 in control of endosomal trafficking of integrins through an association with the β1 integrin and clathrin complexes, and thereby regulation of cell motility.
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Affiliation(s)
- Maisel J Caliva
- Cancer Biology Program, University of Hawaii Cancer Center, University of Hawaii at Mānoa, 701 Ilalo Street, Honolulu, HI, 96813, USA
| | - Won Seok Yang
- Cancer Biology Program, University of Hawaii Cancer Center, University of Hawaii at Mānoa, 701 Ilalo Street, Honolulu, HI, 96813, USA
| | - Shirley Young-Robbins
- Cancer Biology Program, University of Hawaii Cancer Center, University of Hawaii at Mānoa, 701 Ilalo Street, Honolulu, HI, 96813, USA
| | - Ming Zhou
- Women's Health Integrated Research Center at Inova, Inova Women's Service Line, Inova Health System, 3289 Woodburn Rd, Suite 375, Falls Church, VA, 22003, USA
| | - Hana Yoon
- Cancer Biology Program, University of Hawaii Cancer Center, University of Hawaii at Mānoa, 701 Ilalo Street, Honolulu, HI, 96813, USA
| | - Michelle L Matter
- Cancer Biology Program, University of Hawaii Cancer Center, University of Hawaii at Mānoa, 701 Ilalo Street, Honolulu, HI, 96813, USA
| | - Mark L Grimes
- Division of Biological Sciences, Center for Structural and Functional Neuroscience, University of Montana, 32 Campus Drive, Missoula, MT, 59812, USA
| | - Thomas Conrads
- Women's Health Integrated Research Center at Inova, Inova Women's Service Line, Inova Health System, 3289 Woodburn Rd, Suite 375, Falls Church, VA, 22003, USA
| | - Joe William Ramos
- Cancer Biology Program, University of Hawaii Cancer Center, University of Hawaii at Mānoa, 701 Ilalo Street, Honolulu, HI, 96813, USA.
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26
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Migration cues interpretation by clathrin-coated structures. Curr Opin Cell Biol 2021; 72:100-105. [PMID: 34391036 DOI: 10.1016/j.ceb.2021.07.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Revised: 07/08/2021] [Accepted: 07/13/2021] [Indexed: 11/24/2022]
Abstract
Cell migration is oriented by cues from the environment. Such cues are read and interpreted by the cell and translated into a reorganization of the migration machinery to steer migration. Receptors at the cell surface are central to detect these cues. These receptors can be internalized and this plays an important role in the decision-making process leading to choosing a migration direction. Independently of endocytosis, recent findings suggest that regulation of these receptors and translation of the information they carry into a phenotype is facilitated by their clustering at discrete locations of the plasma membrane. Clathrin-coated structures are archetypal clustering assemblies and thus provide the cell with a finely tunable mechanism for controlling receptor availability. In addition, clathrin-coated structures can be regulated by many factors playing a role in cell migration and thus take part in feedback loop mechanisms that are instrumental in defining a migration direction.
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27
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Le Roy N, Stapane L, Gautron J, Hincke MT. Evolution of the Avian Eggshell Biomineralization Protein Toolkit - New Insights From Multi-Omics. Front Genet 2021; 12:672433. [PMID: 34046059 PMCID: PMC8144736 DOI: 10.3389/fgene.2021.672433] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Accepted: 04/08/2021] [Indexed: 11/13/2022] Open
Abstract
The avian eggshell is a remarkable biomineral, which is essential for avian reproduction; its properties permit embryonic development in the desiccating terrestrial environment, and moreover, are critically important to preserve unfertilized egg quality for human consumption. This calcium carbonate (CaCO3) bioceramic is made of 95% calcite and 3.5% organic matrix; it protects the egg contents against microbial penetration and mechanical damage, allows gaseous exchange, and provides calcium for development of the embryonic skeleton. In vertebrates, eggshell occurs in the Sauropsida and in a lesser extent in Mammalia taxa; avian eggshell calcification is one of the fastest known CaCO3 biomineralization processes, and results in a material with excellent mechanical properties. Thus, its study has triggered a strong interest from the researcher community. The investigation of eggshell biomineralization in birds over the past decades has led to detailed characterization of its protein and mineral constituents. Recently, our understanding of this process has been significantly improved using high-throughput technologies (i.e., proteomics, transcriptomics, genomics, and bioinformatics). Presently, more or less complete eggshell proteomes are available for nine birds, and therefore, key proteins that comprise the eggshell biomineralization toolkit are beginning to be identified. In this article, we review current knowledge on organic matrix components from calcified eggshell. We use these data to analyze the evolution of selected matrix proteins and underline their role in the biological toolkit required for eggshell calcification in avian species. Amongst the panel of eggshell-associated proteins, key functional domains are present such as calcium-binding, vesicle-binding and protein-binding. These technical advances, combined with progress in mineral ultrastructure analyses, have opened the way for new hypotheses of mineral nucleation and crystal growth in formation of the avian eggshell, including transfer of amorphous CaCO3 in vesicles from uterine cells to the eggshell mineralization site. The enrichment of multi-omics datasets for bird species is critical to understand the evolutionary context for development of CaCO3 biomineralization in metazoans, leading to the acquisition of the robust eggshell in birds (and formerly dinosaurs).
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Affiliation(s)
| | | | | | - Maxwell T Hincke
- Department of Innovation in Medical Education, University of Ottawa, Ottawa, ON, Canada.,Department of Cellular and Molecular Medicine, University of Ottawa, Ottawa, ON, Canada
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28
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Marhuenda E, Fabre C, Zhang C, Martin-Fernandez M, Iskratsch T, Saleh A, Bauchet L, Cambedouzou J, Hugnot JP, Duffau H, Dennis JW, Cornu D, Bakalara N. Glioma stem cells invasive phenotype at optimal stiffness is driven by MGAT5 dependent mechanosensing. J Exp Clin Cancer Res 2021; 40:139. [PMID: 33894774 PMCID: PMC8067292 DOI: 10.1186/s13046-021-01925-7] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Accepted: 03/23/2021] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND Glioblastomas stem-like cells (GSCs) by invading the brain parenchyma, remains after resection and radiotherapy and the tumoral microenvironment become stiffer. GSC invasion is reported as stiffness sensitive and associated with altered N-glycosylation pattern. Glycocalyx thickness modulates integrins mechanosensing, but details remain elusive and glycosylation enzymes involved are unknown. Here, we studied the association between matrix stiffness modulation, GSC migration and MGAT5 induced N-glycosylation in fibrillar 3D context. METHOD To mimic the extracellular matrix fibrillar microenvironments, we designed 3D-ex-polyacrylonitrile nanofibers scaffolds (NFS) with adjustable stiffnesses by loading multiwall carbon nanotubes (MWCNT). GSCs neurosphere were plated on NFSs, allowing GSCs migration and MGAT5 was deleted using CRISPR-Cas9. RESULTS We found that migration of GSCs was maximum at 166 kPa. Migration rate was correlated with cell shape, expression and maturation of focal adhesion (FA), Epithelial to Mesenchymal Transition (EMT) proteins and (β1,6) branched N-glycan binding, galectin-3. Mutation of MGAT5 in GSC inhibited N-glycans (β1-6) branching, suppressed the stiffness dependence of migration on 166 kPa NFS as well as the associated FA and EMT protein expression. CONCLUSION MGAT5 catalysing multibranched N-glycans is a critical regulators of stiffness induced invasion and GSCs mechanotransduction, underpinning MGAT5 as a serious target to treat cancer.
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Affiliation(s)
- Emilie Marhuenda
- Institut des Neurosciences de Montpellier (INM) U-1051, University of Montpellier, 80 rue Augustin Fliche, Hôpital Saint-Eloi, 34091, Montpellier, Cedex 5, France.
- School of Engineering and Materials Science, Queen Mary University of London, London, E1 4NS, UK.
- Institut Européen des Membranes, IEM, UMR 5635, University of Montpellier, ENSCM, CNRS, Montpellier, France.
| | - Christine Fabre
- Institut des Neurosciences de Montpellier (INM) U-1051, University of Montpellier, 80 rue Augustin Fliche, Hôpital Saint-Eloi, 34091, Montpellier, Cedex 5, France
- École nationale supérieure de chimie de Montpellier, ENSCM, 240 Avenue du Professeur Emile Jeanbrau, 34090, Montpellier, France
| | - Cunjie Zhang
- Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, 600 University Ave., Toronto, ON, M5G 1X5, Canada
- Department of Molecular Genetics, and Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, M5S 1A8, Canada
| | - Martà Martin-Fernandez
- Institut Charles Coulomb, UMR 5221, University of Montpellier, CNRS, Montpellier, France
| | - Thomas Iskratsch
- School of Engineering and Materials Science, Queen Mary University of London, London, E1 4NS, UK
| | - Ali Saleh
- Institut des Neurosciences de Montpellier (INM) U-1051, University of Montpellier, 80 rue Augustin Fliche, Hôpital Saint-Eloi, 34091, Montpellier, Cedex 5, France
| | - Luc Bauchet
- Institut des Neurosciences de Montpellier (INM) U-1051, University of Montpellier, 80 rue Augustin Fliche, Hôpital Saint-Eloi, 34091, Montpellier, Cedex 5, France
| | - Julien Cambedouzou
- Institut Européen des Membranes, IEM, UMR 5635, University of Montpellier, ENSCM, CNRS, Montpellier, France
- École nationale supérieure de chimie de Montpellier, ENSCM, 240 Avenue du Professeur Emile Jeanbrau, 34090, Montpellier, France
| | - Jean-Philippe Hugnot
- Institut des Neurosciences de Montpellier (INM) U-1051, University of Montpellier, 80 rue Augustin Fliche, Hôpital Saint-Eloi, 34091, Montpellier, Cedex 5, France
| | - Hugues Duffau
- Institut des Neurosciences de Montpellier (INM) U-1051, University of Montpellier, 80 rue Augustin Fliche, Hôpital Saint-Eloi, 34091, Montpellier, Cedex 5, France
| | - James W Dennis
- Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, 600 University Ave., Toronto, ON, M5G 1X5, Canada
- Department of Molecular Genetics, and Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, M5S 1A8, Canada
| | - David Cornu
- Institut Européen des Membranes, IEM, UMR 5635, University of Montpellier, ENSCM, CNRS, Montpellier, France.
- École nationale supérieure de chimie de Montpellier, ENSCM, 240 Avenue du Professeur Emile Jeanbrau, 34090, Montpellier, France.
| | - Norbert Bakalara
- Institut des Neurosciences de Montpellier (INM) U-1051, University of Montpellier, 80 rue Augustin Fliche, Hôpital Saint-Eloi, 34091, Montpellier, Cedex 5, France.
- École nationale supérieure de chimie de Montpellier, ENSCM, 240 Avenue du Professeur Emile Jeanbrau, 34090, Montpellier, France.
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29
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Ludwig BS, Kessler H, Kossatz S, Reuning U. RGD-Binding Integrins Revisited: How Recently Discovered Functions and Novel Synthetic Ligands (Re-)Shape an Ever-Evolving Field. Cancers (Basel) 2021; 13:1711. [PMID: 33916607 PMCID: PMC8038522 DOI: 10.3390/cancers13071711] [Citation(s) in RCA: 92] [Impact Index Per Article: 30.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Revised: 03/22/2021] [Accepted: 03/29/2021] [Indexed: 12/19/2022] Open
Abstract
Integrins have been extensively investigated as therapeutic targets over the last decades, which has been inspired by their multiple functions in cancer progression, metastasis, and angiogenesis as well as a continuously expanding number of other diseases, e.g., sepsis, fibrosis, and viral infections, possibly also Severe Acute Respiratory Syndrome Coronavirus (SARS-CoV-2). Although integrin-targeted (cancer) therapy trials did not meet the high expectations yet, integrins are still valid and promising targets due to their elevated expression and surface accessibility on diseased cells. Thus, for the future successful clinical translation of integrin-targeted compounds, revisited and innovative treatment strategies have to be explored based on accumulated knowledge of integrin biology. For this, refined approaches are demanded aiming at alternative and improved preclinical models, optimized selectivity and pharmacological properties of integrin ligands, as well as more sophisticated treatment protocols considering dose fine-tuning of compounds. Moreover, integrin ligands exert high accuracy in disease monitoring as diagnostic molecular imaging tools, enabling patient selection for individualized integrin-targeted therapy. The present review comprehensively analyzes the state-of-the-art knowledge on the roles of RGD-binding integrin subtypes in cancer and non-cancerous diseases and outlines the latest achievements in the design and development of synthetic ligands and their application in biomedical, translational, and molecular imaging approaches. Indeed, substantial progress has already been made, including advanced ligand designs, numerous elaborated pre-clinical and first-in-human studies, while the discovery of novel applications for integrin ligands remains to be explored.
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Affiliation(s)
- Beatrice S. Ludwig
- Department of Nuclear Medicine, University Hospital Klinikum Rechts der Isar and Central Institute for Translational Cancer Research (TranslaTUM), Technical University Munich, 81675 Munich, Germany;
| | - Horst Kessler
- Department of Chemistry, Institute for Advanced Study, Technical University Munich, 85748 Garching, Germany;
| | - Susanne Kossatz
- Department of Nuclear Medicine, University Hospital Klinikum Rechts der Isar and Central Institute for Translational Cancer Research (TranslaTUM), Technical University Munich, 81675 Munich, Germany;
- Department of Chemistry, Institute for Advanced Study, Technical University Munich, 85748 Garching, Germany;
| | - Ute Reuning
- Clinical Research Unit, Department of Obstetrics and Gynecology, University Hospital Klinikum Rechts der Isar, Technical University Munich, 81675 Munich, Germany
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30
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Sun G, Chen J, Ding Y, Wren JD, Xu F, Lu L, Wang Y, Wang DW, Zhang XA. A Bioinformatics Perspective on the Links Between Tetraspanin-Enriched Microdomains and Cardiovascular Pathophysiology. Front Cardiovasc Med 2021; 8:630471. [PMID: 33860000 PMCID: PMC8042132 DOI: 10.3389/fcvm.2021.630471] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Accepted: 02/15/2021] [Indexed: 11/13/2022] Open
Abstract
Background: Tetraspanins and integrins are integral membrane proteins. Tetraspanins interact with integrins to modulate the dynamics of adhesion, migration, proliferation, and signaling in the form of membrane domains called tetraspanin-enriched microdomains (TEMs). TEMs also contain other cell adhesion proteins like immunoglobulin superfamily (IgSF) proteins and claudins. Cardiovascular functions of these TEM proteins have emerged and remain to be further revealed. Objectives: The aims of this study are to explore the roles of these TEM proteins in the cardiovascular system using bioinformatics tools and databases and to highlight the TEM proteins that may functionally associate with cardiovascular physiology and pathology. Methods: For human samples, three databases-GTEx, NCBI-dbGaP, and NCBI-GEO-were used for the analyses. The dbGaP database was used for GWAS analysis to determine the association between target genes and human phenotypes. GEO is an NCBI public repository that archives genomics data. GTEx was used for the analyses of tissue-specific mRNA expression levels and eQTL. For murine samples, GeneNetwork was used to find gene-phenotype correlations and gene-gene correlations of expression levels in mice. The analysis of cardiovascular data was the focus of this study. Results: Some integrins and tetraspanins, such as ITGA8 and Cd151, are highly expressed in the human cardiovascular system. TEM components are associated with multiple cardiovascular pathophysiological events in humans. GWAS and GEO analyses showed that human Cd82 and ITGA9 are associated with blood pressure. Data from mice also suggest that various cardiovascular phenotypes are correlated with integrins and tetraspanins. For instance, Cd82 and ITGA9, again, have correlations with blood pressure in mice. Conclusion: ITGA9 is related to blood pressure in both species. KEGG analysis also linked ITGA9 to metabolism and MAPK signaling pathway. This work provides an example of using integrated bioinformatics approaches across different species to identify the connections of structurally and/or functionally related molecules to certain categories of diseases.
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Affiliation(s)
- Ge Sun
- University of Oklahoma Health Sciences Center, Oklahoma City, OK, United States
| | - Junxiong Chen
- University of Oklahoma Health Sciences Center, Oklahoma City, OK, United States
| | - Yingjun Ding
- University of Oklahoma Health Sciences Center, Oklahoma City, OK, United States
| | - Jonathan D. Wren
- Oklahoma Medical Research Foundation, Oklahoma City, OK, United States
| | - Fuyi Xu
- University of Tennessee Health Science Center, Memphis, TN, United States
| | - Lu Lu
- University of Tennessee Health Science Center, Memphis, TN, United States
| | - Yan Wang
- Tongji Medical College of Huazhong University of Science and Technology, Wuhan, China
| | - Dao-wen Wang
- Tongji Medical College of Huazhong University of Science and Technology, Wuhan, China
| | - Xin A. Zhang
- University of Oklahoma Health Sciences Center, Oklahoma City, OK, United States
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31
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Abstract
The last two decades of research into integrin trafficking has revealed fascinating insight into the function of integrin receptors, particularly in the context of cell invasion and migration in cancer. Deregulation in the trafficking pathways of integrin receptors contributes to a variety of pathological conditions including cancer, and in fact, altered endocytic trafficking of these receptors has been shown to drive transformation and tumor progression. Being able to experimentally measure integrin internalization, recycling and cell surface levels are vital for determining the role integrins play in health and disease. Surface-labeling based endocytic trafficking assays provide a way to experimentally measure changes in the rate of internalization of cell surface proteins, and the recycling of internalized proteins back to the cell surface, with high accuracy. This chapter will focus on quantitative approaches based on cell surface biotinylation and capture ELISA to measure endocytosis, recycling, and cell surface levels of integrin receptors.
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32
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Kim HN, Ruan Y, Ogana H, Kim YM. Cadherins, Selectins, and Integrins in CAM-DR in Leukemia. Front Oncol 2020; 10:592733. [PMID: 33425742 PMCID: PMC7793796 DOI: 10.3389/fonc.2020.592733] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Accepted: 10/22/2020] [Indexed: 12/12/2022] Open
Abstract
The interaction between leukemia cells and the bone microenvironment is known to provide drug resistance in leukemia cells. This phenomenon, called cell adhesion-mediated drug resistance (CAM-DR), has been demonstrated in many subsets of leukemia including B- and T-acute lymphoblastic leukemia (B- and T-ALL) and acute myeloid leukemia (AML). Cell adhesion molecules (CAMs) are surface molecules that allow cell-cell or cell-extracellular matrix (ECM) adhesion. CAMs not only recognize ligands for binding but also initiate the intracellular signaling pathways that are associated with cell proliferation, survival, and drug resistance upon binding to their ligands. Cadherins, selectins, and integrins are well-known cell adhesion molecules that allow binding to neighboring cells, ECM proteins, and soluble factors. The expression of cadherin, selectin, and integrin correlates with the increased drug resistance of leukemia cells. This paper will review the role of cadherins, selectins, and integrins in CAM-DR and the results of clinical trials targeting these molecules.
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Affiliation(s)
- Hye Na Kim
- Children's Hospital Los Angeles, Keck School of Medicine of University of Southern California, Cancer and Blood Disease Institute, Los Angeles, CA, United States
| | - Yongsheng Ruan
- Children's Hospital Los Angeles, Keck School of Medicine of University of Southern California, Cancer and Blood Disease Institute, Los Angeles, CA, United States.,Department of Pediatrics, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Heather Ogana
- Children's Hospital Los Angeles, Keck School of Medicine of University of Southern California, Cancer and Blood Disease Institute, Los Angeles, CA, United States
| | - Yong-Mi Kim
- Children's Hospital Los Angeles, Keck School of Medicine of University of Southern California, Cancer and Blood Disease Institute, Los Angeles, CA, United States
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33
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Park JS, Lee IB, Moon HM, Ryu JS, Kong SY, Hong SC, Cho M. Fluorescence-Combined Interferometric Scattering Imaging Reveals Nanoscale Dynamic Events of Single Nascent Adhesions in Living Cells. J Phys Chem Lett 2020; 11:10233-10241. [PMID: 33206530 DOI: 10.1021/acs.jpclett.0c02103] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Focal adhesions (FAs) are dynamic protein nanostructures that form mechanical links between cytoskeletal actin fibers and the extracellular matrix. Here, we demonstrate that interferometric scattering (iSCAT) microscopy, a high-speed and time-unlimited imaging technique, can uncover the real-time dynamics of nanoscopic nascent adhesions (NAs). The high sensitivity and stability of the iSCAT signal enabled us to trace the whole life span of each NA spontaneously nucleated under a lamellipodium. Such high-throughput and long-term image data provide a unique opportunity for statistical analysis of adhesion dynamics. Moreover, we directly revealed that FAs play critical roles in both the extrusion of filopodia as nucleation sites on the leading edge and the one-dimensional transport of cargos along cytoskeletal fibers as fiber docking sites. These experimental results show that iSCAT is a sensitive tool for tracking real-time dynamics of nanoscopic objects involved in endogenous and exogenous biological processes in living cells.
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Affiliation(s)
- Jin-Sung Park
- Center for Molecular Spectroscopy and Dynamics, Institute for Basic Science, Seoul 02841, Korea
| | - Il-Buem Lee
- Center for Molecular Spectroscopy and Dynamics, Institute for Basic Science, Seoul 02841, Korea
| | - Hyeon-Min Moon
- Center for Molecular Spectroscopy and Dynamics, Institute for Basic Science, Seoul 02841, Korea
| | - Jin-Sun Ryu
- Center for Breast Cancer, National Cancer Center, Goyang 10408, Korea
| | - Sun-Young Kong
- Division of Translational Science, National Cancer Center, Goyang 10408, Korea
| | - Seok-Cheol Hong
- Center for Molecular Spectroscopy and Dynamics, Institute for Basic Science, Seoul 02841, Korea
- Department of Physics, Korea University, Seoul 02841, Korea
| | - Minhaeng Cho
- Center for Molecular Spectroscopy and Dynamics, Institute for Basic Science, Seoul 02841, Korea
- Department of Chemistry, Korea University, Seoul 02841, Korea
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Integrins Control Vesicular Trafficking; New Tricks for Old Dogs. Trends Biochem Sci 2020; 46:124-137. [PMID: 33020011 PMCID: PMC7531435 DOI: 10.1016/j.tibs.2020.09.001] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 08/24/2020] [Accepted: 09/04/2020] [Indexed: 02/07/2023]
Abstract
Integrins are transmembrane receptors that transduce biochemical and mechanical signals across the plasma membrane and promote cell adhesion and migration. In addition, integrin adhesion complexes are functionally and structurally linked to components of the intracellular trafficking machinery and accumulating data now reveal that they are key regulators of endocytosis and exocytosis in a variety of cell types. Here, we highlight recent insights into integrin control of intracellular trafficking in processes such as degranulation, mechanotransduction, cell–cell communication, antibody production, virus entry, Toll-like receptor signaling, autophagy, and phagocytosis, as well as the release and uptake of extracellular vesicles. We discuss the underlying molecular mechanisms and the implications for a range of pathophysiological contexts, including hemostasis, immunity, tissue repair, cancer, and viral infection. Integrin adhesion complexes control polarized targeting of the intracellular trafficking machinery via microtubules. Integrin adhesions are exocytic hubs for a variety of vesicles, including lytic and dense granules, lysosome-related organelles, and biosynthetic vesicles. Integrin-dependent adhesion and signaling is required for degranulation of platelets and leukocytes and controls hemostasis and immunity. Specialized adhesion complexes containing integrin αvβ5 and clathrin are sites of frustrated endocytosis and hubs for mechanotransduction. Integrin control of endocytosis regulates Toll-like receptor signaling and autophagy in immune cells. Integrins control intercellular communication and viral transfer through extracellular vesicles.
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Altei WF, Pachane BC, dos Santos PK, Ribeiro LNM, Sung BH, Weaver AM, Selistre-de-Araújo HS. Inhibition of αvβ3 integrin impairs adhesion and uptake of tumor-derived small extracellular vesicles. Cell Commun Signal 2020; 18:158. [PMID: 32988382 PMCID: PMC7520983 DOI: 10.1186/s12964-020-00630-w] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Accepted: 07/17/2020] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Extracellular vesicles (EVs) are lipid-bound particles that are naturally released from cells and mediate cell-cell communication. Integrin adhesion receptors are enriched in small EVs (SEVs) and SEV-carried integrins have been shown to promote cancer cell migration and to mediate organ-specific metastasis; however, how integrins mediate these effects is not entirely clear and could represent a combination of EV binding to extracellular matrix and cells. METHODS To probe integrin role in EVs binding and uptake, we employed a disintegrin inhibitor (DisBa-01) of integrin binding with specificity for αvβ3 integrin. EVs were purified from MDA-MB-231 cells conditioned media by serial centrifugation method. Isolated EVs were characterized by different techniques and further employed in adhesion, uptake and co-culture experiments. RESULTS We find that SEVs secreted from MDA-MB-231 breast cancer cells carry αvβ3 integrin and bind directly to fibronectin-coated plates, which is inhibited by DisBa-01. SEV coating on tissue culture plates also induces adhesion of MDA-MB-231 cells, which is inhibited by DisBa-01 treatment. Analysis of EV uptake and interchange between cells reveals that the amount of CD63-positive EVs delivered from malignant MDA-MB-231 breast cells to non-malignant MCF10A breast epithelial cells is reduced by DisBa-01 treatment. Inhibition of αvβ3 integrin decreases CD63 expression in cancer cells suggesting an effect on SEV content. CONCLUSION In summary, our findings demonstrate for the first time a key role of αvβ3 integrin in cell-cell communication through SEVs. Video Abstract.
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Affiliation(s)
- Wanessa F. Altei
- Biochemistry and Molecular Biology Laboratory, Department of Physiological Sciences, Federal University of São Carlos, São Carlos, Brazil
| | - Bianca C. Pachane
- Biochemistry and Molecular Biology Laboratory, Department of Physiological Sciences, Federal University of São Carlos, São Carlos, Brazil
| | - Patty K. dos Santos
- Biochemistry and Molecular Biology Laboratory, Department of Physiological Sciences, Federal University of São Carlos, São Carlos, Brazil
| | - Lígia N. M. Ribeiro
- Department of Biochemistry and Tissue Biology, Institute of Biology, State University of Campinas-UNICAMP, Campinas, São Paulo Brazil
| | - Bong Hwan Sung
- Department of Cell and Developmental Biology, Vanderbilt University School of Medicine, Nashville, USA
| | - Alissa M. Weaver
- Department of Cell and Developmental Biology, Vanderbilt University School of Medicine, Nashville, USA
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, USA
| | - Heloisa S. Selistre-de-Araújo
- Biochemistry and Molecular Biology Laboratory, Department of Physiological Sciences, Federal University of São Carlos, São Carlos, Brazil
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Zhao J, Santino F, Giacomini D, Gentilucci L. Integrin-Targeting Peptides for the Design of Functional Cell-Responsive Biomaterials. Biomedicines 2020; 8:E307. [PMID: 32854363 PMCID: PMC7555639 DOI: 10.3390/biomedicines8090307] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Revised: 08/21/2020] [Accepted: 08/23/2020] [Indexed: 01/17/2023] Open
Abstract
Integrins are a family of cell surface receptors crucial to fundamental cellular functions such as adhesion, signaling, and viability, deeply involved in a variety of diseases, including the initiation and progression of cancer, of coronary, inflammatory, or autoimmune diseases. The natural ligands of integrins are glycoproteins expressed on the cell surface or proteins of the extracellular matrix. For this reason, short peptides or peptidomimetic sequences that reproduce the integrin-binding motives have attracted much attention as potential drugs. When challenged in clinical trials, these peptides/peptidomimetics let to contrasting and disappointing results. In the search for alternative utilizations, the integrin peptide ligands have been conjugated onto nanoparticles, materials, or drugs and drug carrier systems, for specific recognition or delivery of drugs to cells overexpressing the targeted integrins. Recent research in peptidic integrin ligands is exploring new opportunities, in particular for the design of nanostructured, micro-fabricated, cell-responsive, stimuli-responsive, smart materials.
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Affiliation(s)
| | | | | | - Luca Gentilucci
- Department of Chemistry “G. Ciamician”, University of Bologna, via Selmi 2, 40126 Bologna, Italy; (J.Z.); (F.S.); (D.G.)
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Kaźmierczak Z, Szostak-Paluch K, Przybyło M, Langner M, Witkiewicz W, Jędruchniewicz N, Dąbrowska K. Endocytosis in cellular uptake of drug delivery vectors: Molecular aspects in drug development. Bioorg Med Chem 2020; 28:115556. [PMID: 32828419 DOI: 10.1016/j.bmc.2020.115556] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Revised: 05/05/2020] [Accepted: 05/06/2020] [Indexed: 12/16/2022]
Abstract
Drug delivery vectors are widely applied to increase drug efficacy while reducing the side effects and potential toxicity of a drug. They allow for patient-tailored therapy, dose titration, and therapeutic drug monitoring. A major part of drug delivery systems makes use of large nanocarriers: liposomes or virus-like particles (VLPs). These systems allow for a relatively large amount of cargo with good stability of vectors, and they offer multiple options for targeting vectors in vivo. Here we discuss endocytic pathways that are available for drug delivery by large nanocarriers. We focus on molecular aspects of the process, including an overview of potential molecular targets for studies of drug delivery vectors and for future solutions allowing targeted drug delivery.
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Affiliation(s)
- Zuzanna Kaźmierczak
- Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Wrocław, Poland
| | - Kamila Szostak-Paluch
- Research and Development Center, Regional Specialized Hospital, Wrocław, Poland; Wrocław University of Science and Technology, Faculty of Fundamental Technical Problems, Department of Biomedical Engineering, Wrocław, Poland
| | - Magdalena Przybyło
- Wrocław University of Science and Technology, Faculty of Fundamental Technical Problems, Department of Biomedical Engineering, Wrocław, Poland; Lipid Systems sp z o.o., Wrocław, Poland
| | - Marek Langner
- Wrocław University of Science and Technology, Faculty of Fundamental Technical Problems, Department of Biomedical Engineering, Wrocław, Poland; Lipid Systems sp z o.o., Wrocław, Poland
| | - Wojciech Witkiewicz
- Research and Development Center, Regional Specialized Hospital, Wrocław, Poland
| | | | - Krystyna Dąbrowska
- Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Wrocław, Poland; Research and Development Center, Regional Specialized Hospital, Wrocław, Poland.
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Groener M, Wang Y, Cross E, Tian X, Ebenezer K, Baik E, Pedigo C, Schiffer M, Inoue K, Ishibe S. Identification of Podocyte Cargo Proteins by Proteomic Analysis of Clathrin-Coated Vesicles. KIDNEY360 2020; 1:480-490. [PMID: 35368594 PMCID: PMC8809311 DOI: 10.34067/kid.0000212020] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Accepted: 04/13/2020] [Indexed: 04/20/2023]
Abstract
Background Clathrin-mediated endocytosis (CME) plays a fundamental role in podocyte health. Genetic ablation of genes implicated in CME has been shown to cause severe proteinuria and foot process effacement in mice. However, little is known about the cargo of clathrin-coated vesicles (CCVs) in podocytes. The goal of this study was to isolate CCVs from podocytes and identify their cargo by proteomic analysis. Methods Glomeruli isolated from Podocin-Cre Rosa-DTRflox mouse kidneys were seeded and treated with diphtheria toxin to obtain pure primary podocyte cultures. CCVs were isolated by differential gradient ultracentrifugation, and enrichment of CCVs was assessed by immunoblotting and electron microscopy (EM). Liquid chromatography-mass spectrometry (LC-MS) was performed for proteomic analysis. Proteins with higher abundance than transferrin receptor protein 1 were evaluated for CCV cargo potential against previously published literature. Immunofluorescence staining of identified cargo proteins and CCVs was performed in podocytes for further verification. Results Immunoblotting for multiple protein markers of CME revealed enrichment in the CCV fraction. Enrichment of CCVs among other small vesicles was observed via EM. Proteomics yielded a total of >1200 significant proteins. Multiple-step data analysis revealed 36 CCV-associated proteins, of which 10 represent novel, highly abundant cargo proteins in podocytes. Colocalization of cargo proteins and CCVs on immunostaining was observed. Conclusions Our identification of podocyte CCV cargo proteins helps to elucidate the importance of endocytic trafficking for podocyte health and maintenance of the glomerular environment.
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Affiliation(s)
- Marwin Groener
- Department of Internal Medicine, Yale University School of Medicine, New Haven, Connecticut
- Department of Nephrology and Hypertension, University Hospital Erlangen, Erlangen, Germany
- Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Ying Wang
- Department of Internal Medicine, Yale University School of Medicine, New Haven, Connecticut
| | - Elizabeth Cross
- Department of Internal Medicine, Yale University School of Medicine, New Haven, Connecticut
| | - Xuefei Tian
- Department of Internal Medicine, Yale University School of Medicine, New Haven, Connecticut
| | - Karen Ebenezer
- Department of Internal Medicine, Yale University School of Medicine, New Haven, Connecticut
| | - Eunice Baik
- Department of Internal Medicine, Yale University School of Medicine, New Haven, Connecticut
| | - Christopher Pedigo
- Department of Internal Medicine, Yale University School of Medicine, New Haven, Connecticut
| | - Mario Schiffer
- Department of Nephrology and Hypertension, University Hospital Erlangen, Erlangen, Germany
- Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
- Mount Desert Island Biological Laboratories, Salisbury Cove, Maine
| | - Kazunori Inoue
- Department of Internal Medicine, Yale University School of Medicine, New Haven, Connecticut
| | - Shuta Ishibe
- Department of Internal Medicine, Yale University School of Medicine, New Haven, Connecticut
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Sundararaman A, Fukushima Y, Norman JC, Uemura A, Mellor H. RhoJ Regulates α5β1 Integrin Trafficking to Control Fibronectin Remodeling during Angiogenesis. Curr Biol 2020; 30:2146-2155.e5. [PMID: 32302585 DOI: 10.1016/j.cub.2020.03.042] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Revised: 02/03/2020] [Accepted: 03/17/2020] [Indexed: 01/24/2023]
Abstract
Rho guanosine triphosphatases (GTPases) are master regulators of cell shape and cell movement [1]. The archetypal family members RhoA, Rac1, and Cdc42 arose early in eukaryotic evolution and coordinate a diverse range of cell morphologies and migrations. Evolution of the vertebrates was paralleled by expansion of this family through gene duplication. Emergence of an adaptive immune system and more complex neural systems presented new roles for Rho GTPases, filled by new family members. Cdc42 underwent gene duplication to produce two related proteins-RhoQ and RhoJ [2]. RhoQ is active in neural dynamics; however, RhoJ is highly expressed in endothelial cells under control of the endothelial-specific promoter ERG [3, 4]. RhoJ is required for angiogenesis [5, 6] and has multiple roles in this process [7, 8]. We recently demonstrated that RhoJ regulates the endosomal trafficking of podocalyxin during angiogenesis to control lumen formation [9]. Here, we use vesicle purification and proteomic analysis to identify the endothelial targets of RhoJ-mediated trafficking. We identify α5β1 integrin as a major RhoJ cargo and show that RhoJ regulates the intracellular trafficking of active α5β1 integrin in endothelial cells to repress fibronectin fibrillogenesis. Accordingly, mice lacking RhoJ show deregulated deposition of fibronectin around vessels during developmental angiogenesis. Intriguingly, we show that RhoJ acts in opposition to Cdc42 in this process through competition for a shared partner, PAK3. These studies identify a critical role for RhoJ in matrix remodeling during blood vessel formation and demonstrate a functional interrelationship between RhoJ and its evolutionary parent.
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Affiliation(s)
| | - Yoko Fukushima
- Department of Ophthalmology, Osaka University Graduate School of Medicine, Suita, Japan
| | - Jim C Norman
- CRUK Beatson Institute for Cancer Research, Garscube Estate, Glasgow G61 1BD, UK
| | - Akiyoshi Uemura
- Department of Retinal Vascular Biology, Nagoya City University Graduate School of Medical Sciences, 1 Kawasumi Mizuho-cho, Mizuho-ku, Nagoya 467-8601, Japan
| | - Harry Mellor
- School of Biochemistry, Biomedical Sciences Building, University of Bristol, Bristol BS8 1TD, UK.
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Mancuso RV, Casper J, Schmidt AG, Krähenbühl S, Weitz‐Schmidt G. Anti-αLβ2 antibodies reveal novel endocytotic cross-modulatory functionality. Br J Pharmacol 2020; 177:2696-2711. [PMID: 31985813 PMCID: PMC7236072 DOI: 10.1111/bph.14996] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Revised: 11/17/2019] [Accepted: 12/14/2019] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND AND PURPOSE Antibodies targeting cell surface receptors are considered to enable highly selective therapeutic interventions for immune disorders and cancer. Their biological profiles are found, generally, to represent the net effects of antibody-target interactions. The former therapeutic anti-integrin αLβ2 antibody efalizumab seems to defeat this paradigm by eliciting, via mechanisms currently unknown, much broader effects than would be predicted based on its target specificity. EXPERIMENTAL APPROACH To elucidate the mechanisms behind these broad effects, we investigated in primary human lymphocytes in vitro the effects of anti-αLβ2 antibodies on the expression of αLβ2 as well as unrelated α4 integrins, in comparison to Fab fragments and small-molecule inhibitors. KEY RESULTS We demonstrate that anti-αLβ2 mAbs directly induce the internalization of α4 integrins. The endocytotic phenomenon is a direct consequence of their antibody nature. It is inhibited when monovalent Fab fragments or small-molecule inhibitors are used. It is independent of crosslinking via anti-Fc mAbs and of αLβ2 activation. The cross-modulatory effect is unidirectional and not observed in a similar fashion with the α4 integrin antibody natalizumab. CONCLUSION AND IMPLICATIONS The present study identifies endocytotic cross-modulation as a hitherto unknown non-canonical functionality of anti-αLβ2 antibodies. This cross-modulation has the potential to fundamentally alter an antibody's benefit risk profile, as evident with efalizumab. The newly described phenomenon may be of relevance to other therapeutic antibodies targeting cluster-forming receptors. Thus, pharmacologists should be cognizant of this action when investigating such antibodies.
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Affiliation(s)
- Riccardo V. Mancuso
- Division of Clinical Pharmacology & ToxicologyUniversity Hospital BaselBaselSwitzerland
- Department of BiomedicineUniversity of BaselBaselSwitzerland
| | - Jens Casper
- Division of Clinical Pharmacology & ToxicologyUniversity Hospital BaselBaselSwitzerland
- Department of BiomedicineUniversity of BaselBaselSwitzerland
| | | | - Stephan Krähenbühl
- Division of Clinical Pharmacology & ToxicologyUniversity Hospital BaselBaselSwitzerland
- Department of BiomedicineUniversity of BaselBaselSwitzerland
- Swiss Centre for Applied Human Toxicology (SCAHT)BaselSwitzerland
| | - Gabriele Weitz‐Schmidt
- Division of Clinical Pharmacology & ToxicologyUniversity Hospital BaselBaselSwitzerland
- Department of BiomedicineUniversity of BaselBaselSwitzerland
- AlloCyte Pharmaceuticals AGBaselSwitzerland
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Adhesion and growth factor receptor crosstalk mechanisms controlling cell migration. Essays Biochem 2020; 63:553-567. [PMID: 31551325 DOI: 10.1042/ebc20190025] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2019] [Revised: 09/04/2019] [Accepted: 09/06/2019] [Indexed: 12/30/2022]
Abstract
Cell migration requires cells to sense and interpret an array of extracellular signals to precisely co-ordinate adhesion dynamics, local application of mechanical force, polarity signalling and cytoskeletal dynamics. Adhesion receptors and growth factor receptors (GFRs) exhibit functional and signalling characteristics that individually contribute to cell migration. Integrins transmit bidirectional mechanical forces and transduce long-range intracellular signals. GFRs are fast acting and highly sensitive signalling machines that initiate signalling cascades to co-ordinate global cellular processes. Syndecans are microenvironment sensors that regulate GTPases to control receptor trafficking, cytoskeletal remodelling and adhesion dynamics. However, an array of crosstalk mechanisms exists, which co-ordinate and integrate the functions of the different receptor families. Here we discuss the nature of adhesion receptor and GFR crosstalk mechanisms. The unifying theme is that efficient cell migration requires precise spatial and temporal co-ordination of receptor crosstalk. However, a higher order of complexity emerges; whereby multiple crosstalk mechanisms are integrated and subject to both positive and negative feedbacks. Exquisite and sensitive control of these mechanisms ensures that mechanical forces and pro-migratory signals are triggered in the right place and at the right time during cell migration. Finally, we discuss the challenges, and potential therapeutic benefits, associated with deciphering this complexity.
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Kadry YA, Calderwood DA. Chapter 22: Structural and signaling functions of integrins. BIOCHIMICA ET BIOPHYSICA ACTA. BIOMEMBRANES 2020; 1862:183206. [PMID: 31991120 PMCID: PMC7063833 DOI: 10.1016/j.bbamem.2020.183206] [Citation(s) in RCA: 101] [Impact Index Per Article: 25.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Revised: 01/21/2020] [Accepted: 01/22/2020] [Indexed: 02/06/2023]
Abstract
The integrin family of transmembrane adhesion receptors is essential for sensing and adhering to the extracellular environment. Integrins are heterodimers composed of non-covalently associated α and β subunits that engage extracellular matrix proteins and couple to intracellular signaling and cytoskeletal complexes. Humans have 24 different integrin heterodimers with differing ligand binding specificities and non-redundant functions. Complex structural rearrangements control the ability of integrins to engage ligands and to activate diverse downstream signaling networks, modulating cell adhesion and dynamics, processes which are crucial for metazoan life and development. Here we review the structural and signaling functions of integrins focusing on recent advances which have enhanced our understanding of how integrins are activated and regulated, and the cytoplasmic signaling networks downstream of integrins.
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Affiliation(s)
- Yasmin A Kadry
- Department of Pharmacology, Yale University School of Medicine, New Haven, CT 06520, United States of America
| | - David A Calderwood
- Department of Pharmacology, Yale University School of Medicine, New Haven, CT 06520, United States of America; Department of Cell Biology, Yale University School of Medicine, New Haven, CT 06520, United States of America..
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Conformationally active integrin endocytosis and traffic: why, where, when and how? Biochem Soc Trans 2020; 48:83-93. [PMID: 32065228 PMCID: PMC7054750 DOI: 10.1042/bst20190309] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2019] [Revised: 01/16/2020] [Accepted: 01/28/2020] [Indexed: 12/30/2022]
Abstract
Spatiotemporal control of integrin-mediated cell adhesion to the extracellular matrix (ECM) is critical for physiological and pathological events in multicellular organisms, such as embryonic development, angiogenesis, platelet aggregation, leukocytes extravasation, and cancer cell metastatic dissemination. Regulation of integrin adhesive function and signaling relies on the modulation of both conformation and traffic. Indeed, integrins exist in a dynamic equilibrium between a bent/closed (inactive) and an extended/open (active) conformation, respectively endowed with low and high affinity for ECM ligands. Increasing evidence proves that, differently to what hypothesized in the past, detachment from the ECM and conformational inactivation are not mandatory for integrin to get endocytosed and trafficked. Specific transmembrane and cytosolic proteins involved in the control of ECM proteolytic fragment-bound active integrin internalization and recycling exist. In the complex masterplan that governs cell behavior, active integrin traffic is key to the turnover of ECM polymers and adhesion sites, the polarized secretion of endogenous ECM proteins and modifying enzymes, the propagation of motility and survival endosomal signals, and the control of cell metabolism.
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Hamann A, Thomas AK, Kozisek T, Farris E, Lück S, Zhang Y, Pannier AK. Screening a chemically defined extracellular matrix mimetic substrate library to identify substrates that enhance substrate-mediated transfection. Exp Biol Med (Maywood) 2020; 245:606-619. [PMID: 32183552 DOI: 10.1177/1535370220913501] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
Nonviral gene delivery, though limited by inefficiency, has extensive utility in cell therapy, tissue engineering, and diagnostics. Substrate-mediated gene delivery (SMD) increases efficiency and allows transfection at a cell-biomaterial interface, by immobilizing and concentrating nucleic acid complexes on a surface. Efficient SMD generally requires substrates to be coated with serum or other protein coatings to mediate nucleic acid complex immobilization, as well as cell adhesion and growth; however, this strategy limits reproducibility and may be difficult to translate for clinical applications. As an alternative, we screened a chemically defined combinatorial library of 20 different extracellular matrix mimetic substrates containing combinations of (1) different sulfated polysaccharides that are essential extracellular matrix glycosaminoglycans (GAGs), with (2) mimetic peptides derived from adhesion proteins, growth factors, and cell-penetrating domains, for use as SMD coatings. We identified optimal substrates for DNA lipoplex and polyplex SMD transfection of fibroblasts and human mesenchymal stem cells. Optimal extracellular matrix mimetic substrates varied between cell type, donor source, and transfection reagent, but typically contained Heparin GAG and an adhesion peptide. Multiple substrates significantly increased transgene expression (i.e. 2- to 20-fold) over standard protein coatings. Considering previous research of similar ligands, we hypothesize extracellular matrix mimetic substrates modulate cell adhesion, proliferation, and survival, as well as plasmid internalization and trafficking. Our results demonstrate the utility of screening combinatorial extracellular matrix mimetic substrates for optimal SMD transfection towards application- and patient-specific technologies. Impact statement Substrate-mediated gene delivery (SMD) approaches have potential for modification of cells in applications where a cell-material interface exists. Conventional SMD uses ill-defined serum or protein coatings to facilitate immobilization of nucleic acid complexes, cell attachment, and subsequent transfection, which limits reproducibility and clinical utility. As an alternative, we screened a defined library of extracellular matrix mimetic substrates containing combinations of different glycosaminoglycans and bioactive peptides to identify optimal substrates for SMD transfection of fibroblasts and human mesenchymal stem cells. This strategy could be utilized to develop substrates for specific SMD applications in which variability exists between different cell types and patient samples.
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Affiliation(s)
- Andrew Hamann
- Department of Biological Systems Engineering, University of Nebraska-Lincoln, Lincoln, NE, 68583, USA
| | - Alvin K Thomas
- B CUBE - Center for Molecular Bioengineering, Center for Molecular and Cellular Bioengineering, Technische Universität Dresden, Tatzberg 41, Dresden 01307, Germany
| | - Tyler Kozisek
- Department of Biological Systems Engineering, University of Nebraska-Lincoln, Lincoln, NE, 68583, USA
| | - Eric Farris
- Department of Biological Systems Engineering, University of Nebraska-Lincoln, Lincoln, NE, 68583, USA
| | - Steffen Lück
- B CUBE - Center for Molecular Bioengineering, Center for Molecular and Cellular Bioengineering, Technische Universität Dresden, Tatzberg 41, Dresden 01307, Germany
| | - Yixin Zhang
- B CUBE - Center for Molecular Bioengineering, Center for Molecular and Cellular Bioengineering, Technische Universität Dresden, Tatzberg 41, Dresden 01307, Germany
| | - Angela K Pannier
- Department of Biological Systems Engineering, University of Nebraska-Lincoln, Lincoln, NE, 68583, USA
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Bannister AH, Bromma K, Sung W, Monica M, Cicon L, Howard P, Chow RL, Schuemann J, Chithrani DB. Modulation of nanoparticle uptake, intracellular distribution, and retention with docetaxel to enhance radiotherapy. Br J Radiol 2019; 93:20190742. [PMID: 31778316 DOI: 10.1259/bjr.20190742] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
OBJECTIVE One of the major issues in current radiotherapy (RT) is the normal tissue toxicity. A smart combination of agents within the tumor would allow lowering the RT dose required while minimizing the damage to healthy tissue surrounding the tumor. We chose gold nanoparticles (GNPs) and docetaxel (DTX) as our choice of two radiosensitizing agents. They have a different mechanism of action which could lead to a synergistic effect. Our first goal was to assess the variation in GNP uptake, distribution, and retention in the presence of DTX. Our second goal was to assess the therapeutic results of the triple combination, RT/GNPs/DTX. METHODS We used HeLa and MDA-MB-231 cells for our study. Cells were incubated with GNPs (0.2 nM) in the absence and presence of DTX (50 nM) for 24 h to determine uptake, distribution, and retention of NPs. For RT experiments, treated cells were given a 2 Gy dose of 6 MV photons using a linear accelerator. RESULTS Concurrent treatment of DTX and GNPs resulted in over 85% retention of GNPs in tumor cells. DTX treatment also forced GNPs to be closer to the most important target, the nucleus, resulting in a decrease in cell survival and increase in DNA damage with the triple combination of RT/ GNPs/DTX vs RT/DTX. Our experimental therapeutic results were supported by Monte Carlo simulations. CONCLUSION The ability to not only trap GNPs at clinically feasible doses but also to retain them within the cells could lead to meaningful fractionated treatments in future combined cancer therapy. Furthermore, the suggested triple combination of RT/GNPs/DTX may allow lowering the RT dose to spare surrounding healthy tissue. ADVANCES IN KNOWLEDGE This is the first study to show intracellular GNP transport disruption by DTX, and its advantage in radiosensitization.
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Affiliation(s)
| | - Kyle Bromma
- Department of Physics and Astronomy, University of Victoria, Victoria, BC, Canada
| | - Wonmo Sung
- Department of Radiation Oncology, Massachusetts General Hospital & Harvard Medical School, Boston, MA, USA
| | - Mesa Monica
- Department of Biochemistry and Microbiology, University of Victoria, Victoria, BC, Canada
| | - Leah Cicon
- Department of Physics and Astronomy, University of Victoria, Victoria, BC, Canada
| | - Perry Howard
- Department of Biochemistry and Microbiology, University of Victoria, Victoria, BC, Canada
| | - Robert L Chow
- Department of Biology, University of Victoria, Victoria, BC, Canada
| | - Jan Schuemann
- Department of Radiation Oncology, Massachusetts General Hospital & Harvard Medical School, Boston, MA, USA
| | - Devika Basnagge Chithrani
- Department of Physics and Astronomy, University of Victoria, Victoria, BC, Canada.,British Columbia Cancer Agency, Victoria, BC, Canada.,Centre for Advanced Materials and Related Technologies (CAMTEC), University of Victoria, Victoria, BC, Canada.,Centre for Biomedical Research, University of Victoria, Victoria, BC, Canada.,Division of medical sciences, University of Victoria, Victoria, BC, Canada
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Integrin β 1-enriched extracellular vesicles mediate monocyte adhesion and promote liver inflammation in murine NASH. J Hepatol 2019; 71:1193-1205. [PMID: 31433301 PMCID: PMC6864271 DOI: 10.1016/j.jhep.2019.07.019] [Citation(s) in RCA: 114] [Impact Index Per Article: 22.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Revised: 07/08/2019] [Accepted: 07/15/2019] [Indexed: 02/06/2023]
Abstract
BACKGROUND & AIMS Hepatic recruitment of monocyte-derived macrophages (MoMFs) contributes to the inflammatory response in non-alcoholic steatohepatitis (NASH). However, how hepatocyte lipotoxicity promotes MoMF inflammation is unclear. Here we demonstrate that lipotoxic hepatocyte-derived extracellular vesicles (LPC-EVs) are enriched with active integrin β1 (ITGβ1), which promotes monocyte adhesion and liver inflammation in murine NASH. METHODS Hepatocytes were treated with either vehicle or the toxic lipid mediator lysophosphatidylcholine (LPC); EVs were isolated from the conditioned media and subjected to proteomic analysis. C57BL/6J mice were fed a diet rich in fat, fructose, and cholesterol (FFC) to induce NASH. Mice were treated with anti-ITGβ1 neutralizing antibody (ITGβ1Ab) or control IgG isotype. RESULTS Ingenuity® Pathway Analysis of the LPC-EV proteome indicated that ITG signaling is an overrepresented canonical pathway. Immunogold electron microscopy and nanoscale flow cytometry confirmed that LPC-EVs were enriched with activated ITGβ1. Furthermore, we showed that LPC treatment in hepatocytes activates ITGβ1 and mediates its endocytic trafficking and sorting into EVs. LPC-EVs enhanced monocyte adhesion to liver sinusoidal cells, as observed by shear stress adhesion assay. This adhesion was attenuated in the presence of ITGβ1Ab. FFC-fed, ITGβ1Ab-treated mice displayed reduced inflammation, defined by decreased hepatic infiltration and activation of proinflammatory MoMFs, as assessed by immunohistochemistry, mRNA expression, and flow cytometry. Likewise, mass cytometry by time-of-flight on intrahepatic leukocytes showed that ITGβ1Ab reduced levels of infiltrating proinflammatory monocytes. Furthermore, ITGβ1Ab treatment significantly ameliorated liver injury and fibrosis. CONCLUSIONS Lipotoxic EVs mediate monocyte adhesion to LSECs mainly through an ITGβ1-dependent mechanism. ITGβ1Ab ameliorates diet-induced NASH in mice by reducing MoMF-driven inflammation, suggesting that blocking ITGβ1 is a potential anti-inflammatory therapeutic strategy in human NASH. LAY SUMMARY Herein, we report that a cell adhesion molecule termed integrin β1 (ITGβ1) plays a key role in the progression of non-alcoholic steatohepatitis (NASH). ITGβ1 is released from hepatocytes under lipotoxic stress as a cargo of extracellular vesicles, and mediates monocyte adhesion to liver sinusoidal endothelial cells, which is an essential step in hepatic inflammation. In a mouse model of NASH, blocking ITGβ1 reduces liver inflammation, injury and fibrosis. Hence, ITGβ1 inhibition may serve as a new therapeutic strategy for NASH.
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Long X, Wong CC, Tong L, Chu ESH, Ho Szeto C, Go MYY, Coker OO, Chan AWH, Chan FKL, Sung JJY, Yu J. Peptostreptococcus anaerobius promotes colorectal carcinogenesis and modulates tumour immunity. Nat Microbiol 2019; 4:2319-2330. [PMID: 31501538 DOI: 10.1038/s41564-019-0541-3] [Citation(s) in RCA: 259] [Impact Index Per Article: 51.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2018] [Accepted: 07/17/2019] [Indexed: 01/18/2023]
Abstract
Emerging evidence implicates a role of the gut microbiota in colorectal cancer (CRC). Peptostreptococcus anaerobius (P. anaerobius) is an anaerobic bacterium selectively enriched in the faecal and mucosal microbiota from patients with CRC, but its causative role and molecular mechanism in promoting tumorigenesis remain unestablished. We demonstrate that P. anaerobius adheres to the CRC mucosa and accelerates CRC development in ApcMin/+ mice. In vitro assays and transmission electron microscopy revealed that P. anaerobius selectively adheres to CRC cell lines (HT-29 and Caco-2) compared to normal colonic epithelial cells (NCM460). We identified a P. anaerobius surface protein, putative cell wall binding repeat 2 (PCWBR2), which directly interacts with colonic cell lines via α2/β1 integrin, a receptor frequently overexpressed in human CRC tumours and cell lines. Interaction between PCWBR2 and integrin α2/β1 induces the activation of the PI3K-Akt pathway in CRC cells via phospho-focal adhesion kinase, leading to increased cell proliferation and nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB) activation. NF-κB in turn triggers a pro-inflammatory response as indicated by increased levels of cytokines, such as interleukin-10 and interferon-γ in the tumours of P. anaerobius-treated ApcMin/+ mice. Analyses of tumour-infiltrating immune cell populations in P. anaerobius-treated ApcMin/+ mice revealed significant expansion of myeloid-derived suppressor cells, tumour-associated macrophages and granulocytic tumour-associated neutrophils, which are associated with chronic inflammation and tumour progression. Blockade of integrin α2/β1 by RGDS peptide, small interfering RNA or antibodies all impair P. anaerobius attachment and abolish P. anaerobius-mediated oncogenic response in vitro and in vivo. Collectively, we show that P. anaerobius drives CRC via a PCWBR2-integrin α2/β1-PI3K-Akt-NF-κB signalling axis and identify the PCWBR2-integrin α2/β1 axis as a potential therapeutic target for CRC.
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Affiliation(s)
- Xiaohang Long
- Institute of Digestive Disease and Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong SAR, China.,State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China.,Chinese University of Hong Kong-Shenzhen Research Institute, Shenzhen, China
| | - Chi Chun Wong
- Institute of Digestive Disease and Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong SAR, China.,State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China.,Chinese University of Hong Kong-Shenzhen Research Institute, Shenzhen, China
| | - Li Tong
- Institute of Digestive Disease and Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong SAR, China.,State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China.,Chinese University of Hong Kong-Shenzhen Research Institute, Shenzhen, China
| | - Eagle S H Chu
- Institute of Digestive Disease and Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong SAR, China.,State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China.,Chinese University of Hong Kong-Shenzhen Research Institute, Shenzhen, China
| | - Chun Ho Szeto
- Institute of Digestive Disease and Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong SAR, China.,State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China.,Chinese University of Hong Kong-Shenzhen Research Institute, Shenzhen, China
| | - Minne Y Y Go
- Institute of Digestive Disease and Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong SAR, China.,State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China.,Chinese University of Hong Kong-Shenzhen Research Institute, Shenzhen, China
| | - Olabisi Oluwabukola Coker
- Institute of Digestive Disease and Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong SAR, China.,State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China.,Chinese University of Hong Kong-Shenzhen Research Institute, Shenzhen, China
| | - Anthony W H Chan
- Department of Anatomical and Cellular Pathology, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Francis K L Chan
- Institute of Digestive Disease and Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong SAR, China.,State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China.,Chinese University of Hong Kong-Shenzhen Research Institute, Shenzhen, China
| | - Joseph J Y Sung
- Institute of Digestive Disease and Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong SAR, China.,State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China.,Chinese University of Hong Kong-Shenzhen Research Institute, Shenzhen, China
| | - Jun Yu
- Institute of Digestive Disease and Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong SAR, China. .,State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China. .,Chinese University of Hong Kong-Shenzhen Research Institute, Shenzhen, China.
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Sengupta S, Rothenberg KE, Li H, Hoffman BD, Bursac N. Altering integrin engagement regulates membrane localization of K ir2.1 channels. J Cell Sci 2019; 132:jcs225383. [PMID: 31391240 PMCID: PMC6771140 DOI: 10.1242/jcs.225383] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Accepted: 07/31/2019] [Indexed: 12/26/2022] Open
Abstract
How ion channels localize and distribute on the cell membrane remains incompletely understood. We show that interventions that vary cell adhesion proteins and cell size also affect the membrane current density of inward-rectifier K+ channels (Kir2.1; encoded by KCNJ2) and profoundly alter the action potential shape of excitable cells. By using micropatterning to manipulate the localization and size of focal adhesions (FAs) in single HEK293 cells engineered to stably express Kir2.1 channels or in neonatal rat cardiomyocytes, we establish a robust linear correlation between FA coverage and the amplitude of Kir2.1 current at both the local and whole-cell levels. Confocal microscopy showed that Kir2.1 channels accumulate in membrane proximal to FAs. Selective pharmacological inhibition of key mediators of protein trafficking and the spatially dependent alterations in the dynamics of Kir2.1 fluorescent recovery after photobleaching revealed that the Kir2.1 channels are transported to the cell membrane uniformly, but are preferentially internalized by endocytosis at sites that are distal from FAs. Based on these results, we propose adhesion-regulated membrane localization of ion channels as a fundamental mechanism of controlling cellular electrophysiology via mechanochemical signals, independent of the direct ion channel mechanogating.
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Affiliation(s)
- Swarnali Sengupta
- Department of Biomedical Engineering, Duke University, Durham, NC 27708, USA
| | | | - Hanjun Li
- Department of Biomedical Engineering, Duke University, Durham, NC 27708, USA
| | - Brenton D Hoffman
- Department of Biomedical Engineering, Duke University, Durham, NC 27708, USA
| | - Nenad Bursac
- Department of Biomedical Engineering, Duke University, Durham, NC 27708, USA
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Elaimy AL, Wang M, Sheel A, Brown CW, Walker MR, Amante JJ, Xue W, Chan A, Baer CE, Goel HL, Mercurio AM. Real-time imaging of integrin β4 dynamics using a reporter cell line generated by Crispr/Cas9 genome editing. J Cell Sci 2019; 132:jcs.231241. [PMID: 31262785 DOI: 10.1242/jcs.231241] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Accepted: 06/22/2019] [Indexed: 12/27/2022] Open
Abstract
The ability to monitor changes in the expression and localization of integrins is essential for understanding their contribution to development, tissue homeostasis and disease. Here, we pioneered the use of Crispr/Cas9 genome editing to tag an allele of the β4 subunit of the α6β4 integrin. A tdTomato tag was inserted with a linker at the C-terminus of integrin β4 in mouse mammary epithelial cells. Cells harboring this tagged allele were similar to wild-type cells with respect to integrin β4 surface expression, association with the α6 subunit, adhesion to laminin and consequent signaling. These integrin β4 reporter cells were transformed with YAP (also known as YAP1), which enabled us to obtain novel insight into integrin β4 dynamics in response to a migratory stimulus (scratch wound) by live-cell video microscopy. An increase in integrin β4 expression in cells proximal to the wound edge was evident, and a population of integrin β4-expressing cells that exhibited unusually rapid migration was identified. These findings could shed insight into integrin β4 dynamics during invasion and metastasis. Moreover, these integrin β4 reporter cells should facilitate studies on the contribution of this integrin to mammary gland biology and cancer.This article has an associated First Person interview with the first author of the paper.
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Affiliation(s)
- Ameer L Elaimy
- Department of Molecular, Cell and Cancer Biology, University of Massachusetts Medical School, 55 Lake Avenue North, Worcester, MA 01605, USA.,Medical Scientist Training Program, University of Massachusetts Medical School, 55 Lake Avenue North, Worcester, MA 01605, USA
| | - Mengdie Wang
- Medical Scientist Training Program, University of Massachusetts Medical School, 55 Lake Avenue North, Worcester, MA 01605, USA
| | - Ankur Sheel
- Medical Scientist Training Program, University of Massachusetts Medical School, 55 Lake Avenue North, Worcester, MA 01605, USA.,RNA Therapeutics Institute, University of Massachusetts Medical School, 55 Lake Avenue North, Worcester, MA 01605, USA
| | - Caitlin W Brown
- Department of Molecular, Cell and Cancer Biology, University of Massachusetts Medical School, 55 Lake Avenue North, Worcester, MA 01605, USA
| | - Melanie R Walker
- Department of Molecular, Cell and Cancer Biology, University of Massachusetts Medical School, 55 Lake Avenue North, Worcester, MA 01605, USA
| | - John J Amante
- Department of Molecular, Cell and Cancer Biology, University of Massachusetts Medical School, 55 Lake Avenue North, Worcester, MA 01605, USA
| | - Wen Xue
- RNA Therapeutics Institute, University of Massachusetts Medical School, 55 Lake Avenue North, Worcester, MA 01605, USA
| | - Amanda Chan
- Department of Molecular, Cell and Cancer Biology, University of Massachusetts Medical School, 55 Lake Avenue North, Worcester, MA 01605, USA
| | - Christina E Baer
- Department of Microbiology and Physiological Systems, University of Massachusetts Medical School, 55 Lake Avenue North, Worcester, MA 01605, USA.,Sanderson Center for Optical Examination, University of Massachusetts Medical School, 55 Lake Avenue North, Worcester, MA 01605, USA
| | - Hira Lal Goel
- Department of Molecular, Cell and Cancer Biology, University of Massachusetts Medical School, 55 Lake Avenue North, Worcester, MA 01605, USA
| | - Arthur M Mercurio
- Department of Molecular, Cell and Cancer Biology, University of Massachusetts Medical School, 55 Lake Avenue North, Worcester, MA 01605, USA
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CKAP4 Regulates Cell Migration via the Interaction with and Recycling of Integrin. Mol Cell Biol 2019; 39:MCB.00073-19. [PMID: 31160493 DOI: 10.1128/mcb.00073-19] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2019] [Accepted: 05/28/2019] [Indexed: 02/06/2023] Open
Abstract
Cytoskeleton-associated protein 4 (CKAP4) is an endoplasmic reticulum protein that is also present in the cell surface membrane, where it acts as a receptor for Dickkopf1 (DKK1). In this study, we found that CKAP4 interacts with β1 integrin and controls the recycling of α5β1 integrin independently of DKK1. In S2-CP8 cells, knockdown of CKAP4 but not DKK1 enlarged the size of cell adhesion sites and enhanced cell adhesion to fibronectin, resulting in decreased cell migration. When CKAP4 was depleted, the levels of α5 but not β1 integrin were increased in the cell surface membrane. A similar phenotype was observed in other cells expressing low levels of DKK1. In S2-CP8 cells, α5 integrin was trafficked with β1 integrin and CKAP4 to the lysosome or recycled with β1 integrin. In CKAP4-depleted cells, the internalization of α5β1 integrin was unchanged, but its recycling was upregulated. Knockdown of sorting nexin 17 (SNX17), a mediator of integrin recycling, abrogated the increased α5 integrin levels caused by CKAP4 knockdown. CKAP4 bound to SNX17, and its knockdown enhanced the recruitment of α5β1 integrin to SNX17. These results suggest that CKAP4 suppresses the recycling of α5β1 integrin and coordinates cell adhesion sites and migration independently of DKK1.
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