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Ubiquitination Regulates MHC Class II-peptide Complex Retention and Degradation in Dendritic Cells

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Specialty Science
Date 2010 Nov 10
PMID 21059907
Citations 55
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Abstract

The expression and turnover of MHC class II-peptide complexes (pMHC-II) on the surface of dendritic cells (DCs) is essential for their ability to activate CD4 T cells efficiently. The half-life of surface pMHC-II is significantly greater in activated (mature) DCs than in resting (immature) DCs, but the molecular mechanism leading to this difference remains unknown. We now show that ubiquitination of pMHC-II by the E3 ubiquitin ligase membrane-associated RING-CH 1 (March-I) regulates surface expression, intracellular distribution, and survival of pMHC-II in DCs. DCs isolated from March-I-KO mice express very high levels of pMHC-II on the plasma membrane even before DC activation. Although ubiquitination does not affect the kinetics of pMHC-II endocytosis from the surface of DCs, the survival of pMHC-II is enhanced in DCs obtained from March-I-deficient and MHC-II ubiquitination-mutant mice. Using pMHC-II-specific mAb, we show that immature DCs generate large amounts of pMHC-II that are remarkably stable under conditions in which pMHC-II ubiquitination is blocked. Thus, the cellular distribution and stability of surface pMHC-II in DCs is regulated by ubiquitin-dependent degradation of internalized pMHC-II.

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References
1.
van Niel G, Wubbolts R, Ten Broeke T, Buschow S, Ossendorp F, Melief C . Dendritic cells regulate exposure of MHC class II at their plasma membrane by oligoubiquitination. Immunity. 2006; 25(6):885-94. DOI: 10.1016/j.immuni.2006.11.001. View

2.
McCormick P, Martina J, Bonifacino J . Involvement of clathrin and AP-2 in the trafficking of MHC class II molecules to antigen-processing compartments. Proc Natl Acad Sci U S A. 2005; 102(22):7910-5. PMC: 1138261. DOI: 10.1073/pnas.0502206102. View

3.
Rudensky AYu , Rath S, Preston-Hurlburt P, Murphy D, Janeway Jr C . On the complexity of self. Nature. 1991; 353(6345):660-2. DOI: 10.1038/353660a0. View

4.
Zhong G, Reis e Sousa C, Germain R . Production, specificity, and functionality of monoclonal antibodies to specific peptide-major histocompatibility complex class II complexes formed by processing of exogenous protein. Proc Natl Acad Sci U S A. 1998; 94(25):13856-61. PMC: 28397. DOI: 10.1073/pnas.94.25.13856. View

5.
Muntasell A, Berger A, Roche P . T cell-induced secretion of MHC class II-peptide complexes on B cell exosomes. EMBO J. 2007; 26(19):4263-72. PMC: 2230838. DOI: 10.1038/sj.emboj.7601842. View