Cell-to-cell communication is necessary to orchestrate effective immune responses against disease-causing agents and in homeostasis. During immune synapsis, transfer of small extracellular vesicles that contain bioactive molecules, including microRNAs, occurs from the T lymphocyte to the antigen-presenting cell. In this chapter, we describe the methodology to identify and validate specific microRNAs shuttled from T lymphocytes to B cells upon immune synapse formation, and to analyze their functional impact on post-synaptic antigen-presenting cells.
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http://dx.doi.org/10.1016/bs.mcb.2022.12.004 | DOI Listing |
Methods Cell Biol
July 2023
Immunology Unit from Hospital Universitario de la Princesa, Universidad Autónoma de Madrid and Instituto de investigación Sanitaria La Princesa (IIS-IP), Madrid, Spain; Intercellular Communication in the Inflammatory Response. Vascular Pathophysiology Area, National Center for Cardiovascular Research (CNIC), Madrid, Spain; Universidad Autónoma de Madrid, Madrid, Spain; Centro de Investigación Biomédica en Red, Enfermedades Cardiovasculares (CIBERCV), Madrid, Spain. Electronic address:
Cell-to-cell communication is necessary to orchestrate effective immune responses against disease-causing agents and in homeostasis. During immune synapsis, transfer of small extracellular vesicles that contain bioactive molecules, including microRNAs, occurs from the T lymphocyte to the antigen-presenting cell. In this chapter, we describe the methodology to identify and validate specific microRNAs shuttled from T lymphocytes to B cells upon immune synapse formation, and to analyze their functional impact on post-synaptic antigen-presenting cells.
View Article and Find Full Text PDFEur J Immunol
October 2016
Centro Nacional de Biotecnología, Consejo Superior de Investigaciones Científicas (CNB-CSIC), Department of Molecular & Cellular Biology, Madrid, Spain.
Lymphocyte migration, which is essential for effective immune responses, belongs to the so-called amoeboid migration. The lymphocyte migration is up to 100 times faster than between mesenchymal and epithelial cell types. Migrating lymphocytes are highly polarized in three well-defined structural and functional zones: uropod, medial zone, and leading edge (LE).
View Article and Find Full Text PDFFront Immunol
February 2013
Laboratory of Immunobiology, Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School Boston, MA, USA ; Department of Pediatrics, Harvard Medical School Boston, MA, USA ; Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School Boston, MA, USA.
Despite major advances in T cell receptor (TCR) biology and structure, how peptide-MHC complex (pMHC) ligands trigger αβ TCR activation remains unresolved. Two views exist. One model postulates that monomeric TCR-pMHC ligation events are sufficient while a second proposes that TCR-TCR dimerization in cis via Cα domain interaction plus pMHC binding is critical.
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