Abstract:
:Diverse immunoglobulin (Ig) domain-containing protein (DICP) family is a novel bony fish-specific multi-gene family encoding diversified immune receptors. However, their function and the implication of binding partners remain unknown. In this study, we first identified 28 DICPs from three gibel carp gynogenetic clones and revealed their high variability and clone-specific feature. After crucian carp herpesvirus (CaHV) infection, these DICPs were significantly upregulated in head kidney, kidney and spleen. The up-regulation folds in clone A+, F and H were related to the susceptibility to CaHV, progressively increasing from resistant clone to susceptible clone. Overexpression of gibel carp DICPs inhibited interferon (IFN) and viperin promoter-driven luciferase activity. The additions of E. coli extracts and lipid A significantly enhanced the inhibition effect. In addition, gibel carp DICPs can interact with SHP-1 and SHP-2. These findings suggest that gible carp DICPs, as inhibitory receptors, might specifically recognize lipid A, and then interact with SHP-1 and SHP-2 to inhibit the induction of IFN and ISGs.
journal_name
Dev Comp Immunoljournal_title
Developmental and comparative immunologyauthors
Gao FX,Lu WJ,Wang Y,Zhang QY,Zhang YB,Mou CY,Li Z,Zhang XJ,Liu CW,Zhou L,Gui JFdoi
10.1016/j.dci.2018.03.013subject
Has Abstractpub_date
2018-07-01 00:00:00pages
396-407eissn
0145-305Xissn
1879-0089pii
S0145-305X(18)30071-5journal_volume
84pub_type
杂志文章abstract::Five large multigene families encoding innate-type immune receptors that are comprised of immunoglobulin domains have been identified in bony fish, of which four do not possess definable mammalian orthologs. The members of some of the multigene families exhibit unusually extensive patterns of divergence and the indivi...
journal_title:Developmental and comparative immunology
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