Multiple tissue-specific isoforms of sulfatide activate CD1d-restricted type II NKT cells.
Multiple tissue-specific isoforms of sulfatide activate CD1d-restricted type II NKT cells.
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DOI:
10.1002/eji.200839001
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发表时间:
2009-07
影响因子:
5.4
通讯作者:
Cardell, Susanna L.
中科院分区:
文献类型:
--
作者:
Blomqvist, Maria;Rhost, Sara;Teneberg, Susann;Lofbom, Linda;Osterbye, Thomas;Brigl, Manfred;Mansson, Jan-Eric;Cardell, Susanna L.
The glycosphingolipid sulfatide (SO3-3Galβ1Cer) is a demonstrated ligand for a subset of CD1d-restricted NKT cells, which could regulate experimental autoimmune encephalomyelitis, a murine model for multiple sclerosis, as well as tumor immunity and experimental hepatitis. Native sulfatide is a mixture of sulfatide isoforms, i.e. sulfatide molecules with different long-chain bases and fatty acid chain lengths and saturation. Here, we demonstrate that sulfatide-specific CD1d-restricted murine NKT hybridomas recognized several different sulfatide isoforms. These included the physiologically relevant isoforms C24:1 and C24:0, major constituents of the myelin sheet of the nervous system, and C16:0, prominent in the pancreatic islet β-cells. The most potent sulfatide isoform was lysosulfatide (lacking a fatty acid). Shortened fatty acid chain length (C24:1 versus C18:1), or saturation of the long fatty acid (C24:0), resulted in reduced stimulatory capacity, and fatty acid hydroxylation abolished the response. Moreover, sulfatide was not responsible for the natural autoreactivity toward splenocytes by XV19 T hybridoma cells. Our results reveal a promiscuity in the recognition of sulfatide isoforms by a CD1d-restricted NKT-cell clone, and suggest that sulfatide, a major component of the myelin sheet and pancreatic β-cells, is one of several natural ligands for type II CD1d-restricted NKT cells.
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影响因子:
5.4
作者:
KARASUYAMA, H;MELCHERS, F
通讯作者:
MELCHERS, F
影响因子:
15
作者:
Goff, RD;Gao, Y;Savage, PB
通讯作者:
Savage, PB
影响因子:
15.9
作者:
Halder, Ramesh C.;Aguilera, Carlos;Kumar, Vipin
通讯作者:
Kumar, Vipin
影响因子:
4.6
作者:
Cardell, SL
通讯作者:
Cardell, SL
影响因子:
15.3
作者:
Jahng, A;Maricic, I;Aguilera, C;Cardell, S;Halder, RC;Kumar, V
通讯作者:
Kumar, V