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Mazalo JK, Tay SS, Kempe D, Biro M. Chemokine receptor distribution on the surface of repolarizing T cells. Biophys J 2024; 123:2328-2342. [PMID: 38327056 DOI: 10.1016/j.bpj.2024.02.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Revised: 12/17/2023] [Accepted: 02/02/2024] [Indexed: 02/09/2024] Open
Abstract
T cells migrate constitutively with a polarized morphology, underpinned by signaling compartmentalization and discrete cytoskeletal organizations, giving rise to a dynamic and expansive leading edge, distinct from the stable and constricted uropod at the rear. In vivo, the motion and function of T cells at various stages of differentiation is highly directed by chemokine gradients. When cognate ligands bind chemokine receptors on their surface, T cells respond by reorientating their polarity axis and migrating toward the source of the chemokine signal. Despite the significance of such chemotactic repolarization to the accurate navigation and function of T cells, the precise signaling mechanisms that underlie it remain elusive. Notably, it remained unclear whether the distribution of chemokine receptors on the T cell surface is altered during repolarization. Here, we developed parallel cell-secreted and microfluidics-based chemokine gradient delivery methods and employed both fixed imaging and live lattice light-sheet microscopy to investigate the dynamics of chemokine receptor CCR5 on the surface of primary murine CD8+ T cells. Our findings show that, during constitutive migration, chemokine receptor distribution is largely isotropic on the T cell surface. However, upon exposure to a CCL3 gradient, surface chemokine receptor distributions exhibit a transient bias toward the uropod. The chemokine receptors then progressively redistribute from the uropod to cover the T cell surface uniformly. This study sheds new light on the dynamics of surface chemokine receptor distribution during T cell repolarization, advancing our understanding of the signaling of immune cells in the complex chemokine landscapes they navigate.
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Affiliation(s)
- Jessica K Mazalo
- EMBL Australia, Single Molecule Science Node, School of Biomedical Sciences, University of New South Wales, Sydney, NSW, Australia
| | - Szun S Tay
- EMBL Australia, Single Molecule Science Node, School of Biomedical Sciences, University of New South Wales, Sydney, NSW, Australia
| | - Daryan Kempe
- EMBL Australia, Single Molecule Science Node, School of Biomedical Sciences, University of New South Wales, Sydney, NSW, Australia.
| | - Maté Biro
- EMBL Australia, Single Molecule Science Node, School of Biomedical Sciences, University of New South Wales, Sydney, NSW, Australia.
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Anitha AK, Narayanan P, Ajayakumar N, Sivakumar KC, Kumar KS. Novel small synthetic HIV-1 V3 crown variants: CCR5 targeting ligands. J Biochem 2022; 172:149-164. [PMID: 35708645 PMCID: PMC9445593 DOI: 10.1093/jb/mvac052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Accepted: 06/02/2022] [Indexed: 11/23/2022] Open
Abstract
The CC chemokine receptor 5 (CCR5) antagonism represents a promising pharmacological strategy for therapeutic intervention as it plays a significant role in reducing the severity and progression of a wide range of pathological conditions. Here we designed and generated peptide ligands targeting the chemokine receptor, CCR5, that were derived from the critical interaction sites of the V3 crown domain of envelope protein glycoprotein gp120 (TRKSIHIGPGRAFYTTGEI) of HIV-1 using computational biology approach and the peptide sequence corresponding to this region was taken as the template peptide, designated as TMP-1. The peptide variants were synthesized by employing Fmoc chemistry using polymer support and were labelled with rhodamine B to study their interaction with the CCR5 receptor expressed on various cells. TMP-1 and TMP-2 were selected as the high-affinity ligands from in vitro receptor-binding assays. Specific receptor-binding experiments in activated peripheral blood mononuclear cells and HOS.CCR5 cells indicated that TMP-1 and TMP-2 had significant CCR5 specificity. Further, the functional analysis of TMP peptides using chemotactic migration assay showed that both peptides did not mediate the migration of responsive cells. Thus, template
TMP-1 and TMP-2 represent promising CCR5 targeting peptide candidates.
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Affiliation(s)
- Anju Krishnan Anitha
- Chemical Biology Laboratory, Pathogen biology research program, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram 695014, India.,University of Kerala, Thiruvananthapuram, Kerala, 695014, India
| | - Pratibha Narayanan
- Chemical Biology Laboratory, Pathogen biology research program, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram 695014, India.,University of Kerala, Thiruvananthapuram, Kerala, 695014, India
| | - Neethu Ajayakumar
- Chemical Biology Laboratory, Pathogen biology research program, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram 695014, India.,University of Kerala, Thiruvananthapuram, Kerala, 695014, India
| | - Krishnankutty Chandrika Sivakumar
- Chemical Biology Laboratory, Pathogen biology research program, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram 695014, India
| | - Kesavakurup Santhosh Kumar
- Chemical Biology Laboratory, Pathogen biology research program, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram 695014, India
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Gardner KP, Tsai S, Aldakkak M, Gironda S, Adams DL. CXCR4 expression in tumor associated cells in blood is prognostic for progression and survival in pancreatic cancer. PLoS One 2022; 17:e0264763. [PMID: 35259193 PMCID: PMC8903256 DOI: 10.1371/journal.pone.0264763] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Accepted: 02/16/2022] [Indexed: 11/23/2022] Open
Abstract
The aggressive nature and metastatic potential of pancreatic cancer (PC) results in poor prognosis and high mortality. A better understanding of the underlying biology of PC and the ability of tumor cells to spread to distant sites is needed to advance the treatment of PC. The chemokine receptor CXCR4 has been heavily implicated in the spread and mobility of many solid cancers based on its role in cancer cell chemotaxis as well as increased metastatic potential. To better elucidate CXCR4's role in the metastatic spread of PC, we examined its expression on various tumor associated cells (TACs) in the peripheral blood of PC patients, including circulating tumor cells (CTCs), epithelial to mesenchymal transition cells (EMTs), and cancer associated macrophage-like cells (CAMLs). In this pilot study, blood samples were procured from 30 PC patients prior to the start of therapeutic intent. CXCR4 expression was analyzed on TACs captured from the blood samples and evaluated in relation to cell migration as well as patient clinical outcomes. In total, CTCs, EMTs, and CAMLs were found in 27%, 60%, and 97% of PC patients, respectively. High CXCR4 expression in CTCs, CAMLs, and EMTs was found to significantly relate to their increased numbers in circulation. Further, higher expression of CXCR4 in CAMLs and EMTs was significantly related to faster progression and worse survival. These data suggest that CXCR4 expression in PC is strongly related to the intravasation and presence of TACs into circulation, as well as being a possible biomarker for aggressive metastatic disease.
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Affiliation(s)
- Kirby P. Gardner
- Creatv MicroTech, Inc., Monmouth Junction, NJ, United States of America
- Rutgers University, Graduate School of Biomedical Sciences, Piscataway, NJ, United States of America
| | - Susan Tsai
- The Medical College of Wisconsin Milwaukee, Milwaukee, WI, United States of America
| | - Mohammed Aldakkak
- The Medical College of Wisconsin Milwaukee, Milwaukee, WI, United States of America
| | - Stephen Gironda
- Creatv MicroTech, Inc., Monmouth Junction, NJ, United States of America
- Department of Physiology and Pharmacology, Wake Forest School of Medicine, Winston-Salem, NC, United States of America
| | - Daniel L. Adams
- Creatv MicroTech, Inc., Monmouth Junction, NJ, United States of America
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4
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Britton C, Poznansky MC, Reeves P. Polyfunctionality of the CXCR4/CXCL12 axis in health and disease: Implications for therapeutic interventions in cancer and immune-mediated diseases. FASEB J 2021; 35:e21260. [PMID: 33715207 DOI: 10.1096/fj.202001273r] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Revised: 11/12/2020] [Accepted: 11/25/2020] [Indexed: 12/19/2022]
Abstract
Historically the chemokine receptor CXCR4 and its canonical ligand CXCL12 are associated with the bone marrow niche and hematopoiesis. However, CXCL12 exhibits broad tissue expression including brain, thymus, heart, lung, liver, kidney, spleen, and bone marrow. CXCR4 can be considered as a node which is integrating and transducing inputs from a range of ligand-receptor interactions into a responsive and divergent network of intracellular signaling pathways that impact multiple cellular processes such as proliferation, migration, and stress resistance. Dysregulation of the CXCR4/CXCL12 axis and consequent fundamental cellular processes, are associated with a panoply of disease. This review frames the polyfunctionality of the receptor at a molecular, physiological, and pathophysiological levels. Transitioning our perspective of this axis from a single gene/protein:single function model to a polyfunctional signaling cascade highlights the potential for finer therapeutic intervention and cautions against a reductionist approach.
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Affiliation(s)
- C Britton
- Vaccine and Immunotherapy Center, Boston, MA, USA
| | | | - P Reeves
- Vaccine and Immunotherapy Center, Boston, MA, USA.,Department of Medicine, Imperial College School of Medicine, London, England
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Agnihotry S, Dhusia K, Srivastav AK, Upadhyay J, Verma V, Shukla PK, Ramteke PW, Gautam B. Biochemical regulation and structural analysis of copper‐transporting ATPase in a human hepatoma cell line for Wilson disease. J Cell Biochem 2019; 120:18826-18844. [DOI: 10.1002/jcb.29199] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2019] [Accepted: 05/28/2019] [Indexed: 12/12/2022]
Affiliation(s)
- Shikha Agnihotry
- Department of Computational Biology and Bioinformatics, Jacob Institute of Biotechnology and Bio‐Engineering, Sam Higginbottom University of AgricultureTechnology and Sciences Allahabad Uttar Pradesh India
| | - Kalyani Dhusia
- Department of Computational Biology and Bioinformatics, Jacob Institute of Biotechnology and Bio‐Engineering, Sam Higginbottom University of AgricultureTechnology and Sciences Allahabad Uttar Pradesh India
| | - Ajeet K. Srivastav
- Photobiology Laboratory, System Toxicology and Health Risk Assessment GroupCSIR‐Indian Institute of Toxicology Research (CSIR‐IITR) Lucknow Uttar Pradesh India
| | - Jaya Upadhyay
- Department of GastroenterologySanjay Gandhi Postgraduate Institute of Medical Sciences Lucknow Uttar Pradesh India
| | - Vinod Verma
- Department of Hematology, Stem Cell Research CentreSanjay Gandhi Postgraduate Institute of Medical Sciences Lucknow Uttar Pradesh India
| | - Pradeep K. Shukla
- Department of Biological Sciences, Sam Higginbottom University of AgricultureTechnology and Sciences Allahabad Uttar Pradesh India
| | - Pramod W. Ramteke
- Department of Biological Sciences, Sam Higginbottom University of AgricultureTechnology and Sciences Allahabad Uttar Pradesh India
| | - Budhayash Gautam
- Department of Computational Biology and Bioinformatics, Jacob Institute of Biotechnology and Bio‐Engineering, Sam Higginbottom University of AgricultureTechnology and Sciences Allahabad Uttar Pradesh India
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Taddese B, Deniaud M, Garnier A, Tiss A, Guissouma H, Abdi H, Henrion D, Chabbert M. Evolution of chemokine receptors is driven by mutations in the sodium binding site. PLoS Comput Biol 2018; 14:e1006209. [PMID: 29912865 PMCID: PMC6037435 DOI: 10.1371/journal.pcbi.1006209] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2018] [Revised: 07/09/2018] [Accepted: 05/16/2018] [Indexed: 12/22/2022] Open
Abstract
Chemokines and their receptors (members of the GPCR super-family) are involved in a wide variety of physiological processes and diseases; thus, understanding the specificity of the chemokine receptor family could help develop new receptor specific drugs. Here, we explore the evolutionary mechanisms that led to the emergence of the chemokine receptors. Based on GPCR hierarchical classification, we analyzed nested GPCR sets with an eigen decomposition approach of the sequence covariation matrix and determined three key residues whose mutation was crucial for the emergence of the chemokine receptors and their subsequent divergence into homeostatic and inflammatory receptors. These residues are part of the allosteric sodium binding site. Their structural and functional roles were investigated by molecular dynamics simulations of CXCR4 and CCR5 as prototypes of homeostatic and inflammatory chemokine receptors, respectively. This study indicates that the three mutations crucial for the evolution of the chemokine receptors dramatically altered the sodium binding mode. In CXCR4, the sodium ion is tightly bound by four protein atoms and one water molecule. In CCR5, the sodium ion is mobile within the binding pocket and moves between different sites involving from one to three protein atoms and two to five water molecules. Analysis of chemokine receptor evolution reveals that a highly constrained sodium binding site characterized most ancient receptors, and that the constraints were subsequently loosened during the divergence of this receptor family. We discuss the implications of these findings for the evolution of the chemokine receptor functions and mechanisms of action.
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Affiliation(s)
- Bruck Taddese
- Laboratoire MITOVASC, UMR CNRS 6015 – INSERM 1083, Université d’Angers, Angers, France
| | - Madeline Deniaud
- Laboratoire MITOVASC, UMR CNRS 6015 – INSERM 1083, Université d’Angers, Angers, France
| | - Antoine Garnier
- Laboratoire MITOVASC, UMR CNRS 6015 – INSERM 1083, Université d’Angers, Angers, France
| | - Asma Tiss
- Laboratoire MITOVASC, UMR CNRS 6015 – INSERM 1083, Université d’Angers, Angers, France
- Laboratoire de Génétique, Immunologie et Pathologies Humaines, Faculté des Sciences de Tunis, Université de Tunis El Manar, Tunis, Tunisie
| | - Hajer Guissouma
- Laboratoire de Génétique, Immunologie et Pathologies Humaines, Faculté des Sciences de Tunis, Université de Tunis El Manar, Tunis, Tunisie
| | - Hervé Abdi
- The University of Texas at Dallas, School of Behavioral and Brain Sciences, Dallas, Texas, United States of America
| | - Daniel Henrion
- Laboratoire MITOVASC, UMR CNRS 6015 – INSERM 1083, Université d’Angers, Angers, France
| | - Marie Chabbert
- Laboratoire MITOVASC, UMR CNRS 6015 – INSERM 1083, Université d’Angers, Angers, France
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