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Volumn 19, Issue 1, 2007, Pages 93-98

Antigen presentation by B lymphocytes: how receptor signaling directs membrane trafficking

Author keywords

[No Author keywords available]

Indexed keywords

ACTIN; B LYMPHOCYTE RECEPTOR; CYTOSKELETON PROTEIN; LYMPHOCYTE ANTIGEN RECEPTOR; MAJOR HISTOCOMPATIBILITY ANTIGEN CLASS 2; MEMBRANE ANTIGEN; VESICULAR TRANSPORT PROTEIN;

EID: 33846108819     PISSN: 09527915     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.coi.2006.11.011     Document Type: Review
Times cited : (48)

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    • This group has previously shown that B cells can capture membrane-bound Ag through formation of an immunological synapse [51]. In this study, they show that this event is associated with a membrane spreading and contraction two-phase response. Spreading and contraction rely on BCR signaling and on the actin cytoskeleton, and allow concentration of the Ag at the membrane for efficient extraction. A mathematical model is presented to demonstrate that this process is important for extraction of membrane-bound Ag that have low affinity for the BCR.
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    • The pathway of antigen uptake and processing dictates MHC class II-mediated B cell survival and activation
    • The authors compare the effect of engaging MHC class II-peptide complexes generated by BCR-mediated Ag uptake (type I complex) with those generated by fluid phase endocytosis (type II complex) on B-cell responses, as measured by their survival rate and expression of activation markers. They show that type I complexes lead to increased B-cell activation and survival, suggesting that appropriate Ag targeting is key to induce the relevant immune response.
    • Nashar T.O., and Drake J.R. The pathway of antigen uptake and processing dictates MHC class II-mediated B cell survival and activation. J Immunol 174 (2005) 1306-1316. The authors compare the effect of engaging MHC class II-peptide complexes generated by BCR-mediated Ag uptake (type I complex) with those generated by fluid phase endocytosis (type II complex) on B-cell responses, as measured by their survival rate and expression of activation markers. They show that type I complexes lead to increased B-cell activation and survival, suggesting that appropriate Ag targeting is key to induce the relevant immune response.
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    • Nashar, T.O.1    Drake, J.R.2
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    • B cells acquire antigen from target cells after synapse formation
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* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.