TY - JOUR
T1 - T cell dynamics during induction of tolerance and suppression of experimental allergic encephalomyelitis
AU - Divekar, Rohit D.
AU - Haymaker, Cara L.
AU - Cascio, Jason A.
AU - Guloglu, Betul F.
AU - Ellis, Jason S.
AU - Tartar, Danielle M.
AU - Hoeman, Christine M.
AU - Franklin, Craig L.
AU - Zinselmeyer, Bernd H.
AU - Lynch, Jennifer N.
AU - Miller, Mark J.
AU - Zaghouani, Habib
PY - 2011/10/15
Y1 - 2011/10/15
N2 - The cell dynamics associated with induction of peripheral T cell tolerance remain largely undefined. In this study, an in vivo model was adapted to two-photon microscopy imaging, and T cell behavior was analyzed on tolerogen-induced modulation. FcγR-deficient (FcγR-/-) mice were unable to resist or alleviate experimental allergic encephalomyelitis when treated with Ig-myelin oligodendrocyte glycoprotein (MOG) tolerogen, an Ig carrying the MOG35-55 peptide. However, when FcγR+/+ dendritic cells (DCs) are adoptively transferred into FcγR-/- mice, uptake and presentation of Ig-MOG occurs and the animals were able to overcome experimental allergic encephalomyelitis. We then fluorescently labeled FcγR+/+ DCs and 2D2 MOG-specific TCR-transgenic T cells, transferred them into FcγR-/- mice, administered Ig-MOG, and analyzed both T cell-DC contact events and T cell motility. The results indicate that tolerance takes place in lymphoid organs, and surprisingly, the T cells do not become anergic but instead have a Th2 phenotype. The tolerant Th2 cells displayed reduced motility after tolerogen exposure similar to Th1 cells after immunization. However, the Th2 cells had higher migration speeds and took longer to exhibit changes in motility. Therefore, both Th1 immunity and Th2 tolerance alter T cell migration on Ag recognition, but the kinetics of this effect differ among the subsets. Copyright
AB - The cell dynamics associated with induction of peripheral T cell tolerance remain largely undefined. In this study, an in vivo model was adapted to two-photon microscopy imaging, and T cell behavior was analyzed on tolerogen-induced modulation. FcγR-deficient (FcγR-/-) mice were unable to resist or alleviate experimental allergic encephalomyelitis when treated with Ig-myelin oligodendrocyte glycoprotein (MOG) tolerogen, an Ig carrying the MOG35-55 peptide. However, when FcγR+/+ dendritic cells (DCs) are adoptively transferred into FcγR-/- mice, uptake and presentation of Ig-MOG occurs and the animals were able to overcome experimental allergic encephalomyelitis. We then fluorescently labeled FcγR+/+ DCs and 2D2 MOG-specific TCR-transgenic T cells, transferred them into FcγR-/- mice, administered Ig-MOG, and analyzed both T cell-DC contact events and T cell motility. The results indicate that tolerance takes place in lymphoid organs, and surprisingly, the T cells do not become anergic but instead have a Th2 phenotype. The tolerant Th2 cells displayed reduced motility after tolerogen exposure similar to Th1 cells after immunization. However, the Th2 cells had higher migration speeds and took longer to exhibit changes in motility. Therefore, both Th1 immunity and Th2 tolerance alter T cell migration on Ag recognition, but the kinetics of this effect differ among the subsets. Copyright
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U2 - 10.4049/jimmunol.1100531
DO - 10.4049/jimmunol.1100531
M3 - Article
C2 - 21911603
AN - SCOPUS:80054724198
SN - 0022-1767
VL - 187
SP - 3979
EP - 3986
JO - Journal of Immunology
JF - Journal of Immunology
IS - 8
ER -