Control of immune responses by trafficking cell surface proteins, vesicles and lipid rafts to and from the immunological synapse
2004 (English)In: Traffic: the International Journal of Intracellular Transport, ISSN 1398-9219, E-ISSN 1600-0854, Vol. 5, no 9, 651-661 p.Article, review/survey (Refereed) Published
Supramolecular clusters at the immunological synapse provide a mechanism for structuring complex communication networks between cells of the immune system. Regulating intra- and intercellular trafficking of proteins and lipids to and from the immunological synapse provides an additional level of complexity in determining the functional outcome of immune cell interactions. An emergent principle is that molecules requiring tightly regulated cell surface expression, e.g. negative regulators of cell activation or molecules promoting cytotoxicity, are trafficked to the immunological synapse from intracellular secretory as required lysosomes. Many molecules required for the early stages of the intercellular communication are already present at the cell surface, sometimes in lipid rafts, and are rapidly translocated laterally to the intercellular contact. Our understanding of these events critically depends on utilizing appropriate technologies for probing supramolecular recognition in live cells. Thus, we also present here a critical discussion of the technologies used to study lipid rafts and, more broadly, a map of the spatial and temporal dimensions covered by current live cell physical techniques, highlighting where advances are needed to exceed current spatial and temporal boundaries.
Place, publisher, year, edition, pages
2004. Vol. 5, no 9, 651-661 p.
fluorescence imaging, immunological synapse, lipid rafts, natural killer cell, T-cell, gpi-anchored proteins, antigen-presenting cells, t-lymphocyte antigen-4, natural-killer-cells, class-ii molecules, membrane rafts, plasma-membrane, nk cells, fluorescence microscopy, intercellular transfer
IdentifiersURN: urn:nbn:se:kth:diva-23628DOI: 10.1111/j.1600-0854.2004.00214.xISI: 000223110300002OAI: oai:DiVA.org:kth-23628DiVA: diva2:342327
QC 201005252010-08-102010-08-10Bibliographically approved