CD24 controls expansion and persistence of autoreactive T cells in the central nervous system during experimental autoimmune encephalomyelitis.
In the development of experimental autoimmune encephalomyelitis (EAE), a model for multiple sclerosis (MS), autoreactive T cells must be activated and clonally expand in the lymphoid organs, and then migrate into the central nervous system (CNS) where they undergo further activation. It is unclear whether the autoreactive T cells further expand in the CNS and if so, what interactions are required for this process. We have demonstrated previously that expression by the host cells of the heat-stable antigen (CD24), which was recently identified as a genetic modifier for MS, is essential for their susceptibility to EAE. Here we show that CD24 is essential for local clonal expansion and persistence of T cells after their migration into the CNS, and that expression of CD24 on either hematopoietic cells or nonhematopoietic antigen-presenting cells in the recipient is sufficient to confer susceptibility to EAE.
Bai
Xue-Feng
XF
Division of Cancer Immunology, Department of Pathology, Ohio State University Medical Center, 129 Hamilton Hall, 1645 Neil Ave., Columbus 43210, USA.
Li
Ou
O
Zhou
Qunmin
Q
Zhang
Huiming
H
Joshi
Pramod S
PS
Zheng
Xincheng
X
Liu
Yan
Y
Wang
Yin
Y
Zheng
Pan
P
Liu
Yang
Y
D019264:Adoptive Transfer; D000818:Animals; D015703:Antigens, CD / Q000276:immunology*; D017209:Apoptosis / Q000276:immunology; D001853:Bone Marrow / Q000276:immunology; D001973:Bromodeoxyuridine; D051927:CD24 Antigen; D002490:Central Nervous System / Q000276:immunology*; D004195:Disease Models, Animal; D018450:Disease Progression; D004681:Encephalomyelitis, Autoimmune, Experimental / Q000276:immunology*; D007150:Immunohistochemistry; D008213:Lymphocyte Activation / Q000276:immunology*; D008562:Membrane Glycoproteins / Q000276:immunology*; D051379:Mice; D008810:Mice, Inbred C57BL; D009103:Multiple Sclerosis / Q000276:immunology*; D009457:Neuroglia / Q000276:immunology; D013601:T-Lymphocytes / Q000276:immunology*; D013997:Time Factors
D015703:Antigens, CD; D051927:CD24 Antigen; C497890:Cd24a protein, mouse; D008562:Membrane Glycoproteins; D001973:Bromodeoxyuridine