Kwangmi Kim

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Atopic dermatitis is a chronic inflammatory skin condition including severe pruritus, xerosis, visible eczematous skin lesions that mainly begin early in life. Atopic dermatitis exerts a profound impact on the quality of life of patients and their families. The estimated lifetime prevalence of atopic dermatitis has increased 2~3 fold during over the past 30(More)
Lymphocyte function-associated antigen 1 (LFA-1), a member of beta2-integrin family, exerts multiple roles in host T cell immunity and has been identified as a useful drug-development target for inflammatory and autoimmune diseases. Applying the findings that primary resting T cells absorb nanometric membrane vesicles derived from antigen presenting cells(More)
A surge in cytosolic calcium ion concentration by entry of extracellular Ca2+ is a hallmark of T cell activation. According to store-operated Ca2+ entry mechanism, the Ca2+ entry is preceded by activation of phospholipase C-gamma1 (PLC-gamma1) and the consequent mobilization of intracellular Ca2+. Using membrane vesicles expressing the mouse class I major(More)
T cells absorb nanometric membrane vesicles, prepared from plasma membrane of antigen presenting cells, via dual receptor/ligand interactions of T cell receptor (TCR) with cognate peptide/major histocompatibility complex (MHC) plus lymphocyte function-associated antigen 1 (LFA-1) with intercellular adhesion molecule 1. TCR-mediated signaling for LFA-1(More)
The stability of peptide-MHC complex (pMHC) is an important factor to shape the fate of peptide-specific T cell immune response, but how it influences on T cell activation process is poorly understood. To better understand that, we investigated various T cell activation events driven by Ld MHCI loaded with graded concentrations of P2Ca and QL9 peptides,(More)
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