Immunology Research Papers/Topics

TL1A/TNFR2 AXIS ENHANCES IMMUNOREGULATORY EFFECTS OF BONE MARROW DERIVED MESENCHYMAL STEM CELL BY INDIAN HEDGEHOG SIGNALING PATHWAY

Background and Objectives: The immunomodulatory potential of mesenchymal stem cells (MSCs) can be regulated by a variety of molecules, especially cytokines. The inflammatory cytokine, TNF-like ligand 1A (TL1A), has been reported as an inflammation stimulator in-multiple autoimmune diseases. Here, we studied the effects of TL1A/TNF-receptor 2 (TNFR2) pathway on the therapeutic potency of bone marrow-derived MSCs (BMSCs). Methods and Results: BMSCs, fibroblast-like synoviocytes (FLSs), and H9 a...

Increased complement deposition on red blood cells in children with sickle cell trait

Abstract/Overview Aims: Immune-mediated mechanism, such as deposition of complement (C3b) on erythrocytes leading to enhanced receptor-mediated uptake by macrophages has been proposed to contribute partly to the destruction of non-infected cells leading to anaemia. The extent of complement deposition on RBC (red blood cells) may therefore influence an individual's resistance or susceptibility to severe malarial anaemia. Our objective was to see if RBC of sickle cell trait individuals have...

CD23-Bound IgE augments and dominates recall responses through human Naive B cells

Abstract/Overview Human peripheral blood BCRμ+ B cells express high levels of CD23 and circulate preloaded with IgE. The Ag specificity of CD23-bound IgE presumably differs from the BCR and likely reflects the Ag-specific mix of free serum IgE. CD23-bound IgE is thought to enhance B Cell Ag presentation to T cells raising the question of how a B cell might respond when presented with a broad mix of Ags and CD23-bound IgE specificities. We recently reported that an increase in CD23+ B cel...