Had impaired capability to suppress effector T cell proliferation. The fgl : Différence entre versions

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Mice deficient in FGL2 (fgl2-/-) have enhanced T cell, B cell, and DC function as shown within the figure.Had impaired ability to suppress effector T cell proliferation. title= insects2030297 The fgl2-/- mice also develop autoimmune glomerulonephritis as they age, probably related to the state of immune activation.Figure two. Immunoregulatory Function of FGL2. Mice deficient in FGL2 (fgl2-/-) have enhanced T cell, B cell, and DC function as shown within the figure. The fgl2-/- mice develop autoimmune glomerulonephritis as they age reflective of chronic immune activation. DC, dendritic cell; LPS, lipopolysaccharide.Rambam Maimonides Health-related JournalJuly 2015 Volume six Problem three eTreg and FGL2 in Alloimmunity and AutoimmunityTable two. FGL2-expressing Regulatory T Cells. Molecule TCR Co-receptor CD8 , MHC-I/II restricted CD8+CD45RClow , MHC-I restricted DNT cells CD4+Foxp3+, MHC-II restricted , MHC-II-restricted Absent CDCD8 CD8 Little subset express CD4 or CD8 Lin-cells in intestinal epithelium, cryptopatches Thymus (induced IEL from E64d solubility standard T cells) Thymus-independent Self-antigen, foreign antigen, oligoclonal CD69, FasL, granzymes, CD122, B220, NK-Like receptors Adverse for CD2, CD5, CD28, LFA-1, mostly Thy1-negative Low CD5 in intestine, TGF-3, LAG-3, FGL2 Homeostasis in intestine (meals and microbes in lamina propria) Far more common within the modest intestine Inhibitory NK receptors CD8 recruitment of LAT and LCK from the TCR CD45RClow, Foxp3, GITR, IL-10, and IL13 UnknownOriginThymus, peripheryThymusDevelopmentCD40-Ig treatmentThymus-dependent Thymus (tTreg) (DC+, IL-12+, IL-15), Induced inside the thymus-independent periphery (pTreg) Polyclonal CD25, CD28, FasL, perforin, CTLA-4 Negative for NK1.1, Foxp3 CD25high, GITR, CTLA4, OX-40, TIGIT, CD39/CD73, IL-35, PD-1, GzmbSpecificity MarkersCytokine expression Target cell/ specializationIFN-, IDO, FGL2 Interaction with plasmacytoid DC title= journal.pone.0023913 to suppress CD4+ T cell activity Accumulated inside the graft and spleen Contact-dependentFGL2-mediated suppression of T cell proliferation Contact-independent IDO-mediated suppressionFGL2, IFN- (not IL2) LPS-activated DC CD8 and CD4 T cells Mature and immature DC B cells Trogocytosis and CD8+ T cell (FasL) mediated killing CTLA-4 dependent downregulation of DC activation DC apoptosis by way of Fas:FasLIL-10, TGF-, FGL2 DC T cellsMechanismsDC inhibition by sequestration of CD80/CD86 T cell deprivation of IL-2 Inhibition of DC maturation Adenosine inhibition, impeding T cell effector and DC activity Anti-inflammatory Induction of apoptosis in target cellsCTLA-4, cytotoxic T lymphocyte-associated protein 4; DC, dendritic cell; DNT, double adverse T cell; FasL, fas ligand; FGL2, fibrinogen-like protein 2; Foxp3, forkhead box p3; GITR, glucocorticoid-induced TNFR family-related gene; Gzmb, granzyme B; IDO, indoleamine two,3-deoxygenase; IEL, intraepithelial lymphocytes; IFN-, interferon gamma; Ig, immunoglobulin; IL, interleukin; LAG-3, lymphocyte activation gene 3; LAT, linker for activation of T cells; LCK, lymphocyte-specific protein tyrosine kinase; LFA-1, lymphocyte function-associated antigen 1; Lin, lineage; LPS, lipopolysaccharide; MHC, significant histocompatibility complicated; NK, natural killer; PD-1, programmed cell death-1; TCR, T cell receptor; TGF-3, transforming development aspect beta 3; Thy1, thymocyte title= j.cgh.2011.08.015 antigen; TIGIT, T cell immunoreceptor with Ig and ITIM domains.July 2015 Volume six Challenge 3 eRambam Maimonides Healthcare JournalTreg and FGL2 in Alloimmunity and Autoimmunity The mechanisms via which FGL2 exerts its immunomodulatory function happen to be an area of active investigation. We and other people have shown.