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Sökning: WFRF:(Schmits R)

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  • Schramm, R, et al. (författare)
  • The cervical lymph node preparation: A novel approach to study lymphocyte homing by intravital microscopy
  • 2006
  • Ingår i: Inflammation Research. - : Springer Science and Business Media LLC. - 1420-908X .- 1023-3830. ; 55:4, s. 160-167
  • Tidskriftsartikel (refereegranskat)abstract
    • Objective: Lymphocyte recirculation constitutes an integral part of the adaptive immune system. Blood-borne lymphocytes migrate into secondary lymphoid organs, crossing the vascular wall of site-specific high endothelial venules (HEVs). We created a preparation of the cervical lymph node in mice to study lymphocyte homing in vivo. Methods and Results: Our novel approach allowed the detailed analysis of hemodynamics and lymphocyte-HEV endothelium interactions by means of intravital fluorescence microscopy. We confirm the key roles of L-selectin and LFA-1 for lymphocyte homing. Blockade of L-selectin function inhibited lymphocyte rolling and firm adhesion by 92 % and 66%. In LFA-1-deficient mice, lymphocyte firm adhesion was reduced by 70%. In addition to the microcirculation studies, the cervical lymph node preparation allowed for visualization of afferent lymphatic transport, which is mainly derived from the oral mucosa. Conclusion: This study reports a novel technical tool for the detailed in vivo analysis of adaptive immune responses.
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