Abstract:
:PILRα is an immune inhibitory receptor possessing an immunoreceptor tyrosine-based inhibitory motif (ITIM) in its cytoplasmic domain enabling it to deliver inhibitory signals. Binding of PILRα to its ligand CD99 is involved in immune regulation; however, whether there are other PILRα ligands in addition to CD99 is not known. Here, we report that a novel molecule, PILR-associating neural protein (PANP), acts as an additional ligand for PILRα. Transcription of PANP was mainly observed in neural tissues. PILRα-Ig fusion protein bound cells transfected with PANP and the transfectants stimulated PILRα reporter cells. Specific O-glycan structures on PANP were found to be required for PILR recognition of this ligand. These results suggest that PANP is involved in immune regulation as a ligand of the PILRα.
journal_name
Biochem Biophys Res Communjournal_title
Biochemical and biophysical research communicationsauthors
Kogure A,Shiratori I,Wang J,Lanier LL,Arase Hdoi
10.1016/j.bbrc.2011.01.047subject
Has Abstractpub_date
2011-02-18 00:00:00pages
428-33issue
3eissn
0006-291Xissn
1090-2104pii
S0006-291X(11)00077-5journal_volume
405pub_type
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