Characterization of CD 200-receptor expression in the murine epidermis.
Characterization of CD 200-receptor expression in the murine epidermis.
复制标题
小鼠表皮中 CD 200 受体表达的表征。
DOI:
10.1111/j.0022-202x.2005.23948.x
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发表时间:
2005
期刊:
影响因子:
--
通讯作者:
Truitt,RobertL
中科院分区:
文献类型:
--
作者:
Rosenblum,MichaelD;Woodliff,JeffreyE;Madsen,NathanielA;McOlash,LauraJ;Keller,MelissaR;Truitt,RobertL
CD200 is a widely expressed transmembrane glycoprotein that transmits an inhibitory signal after ligation of the structurally homologous CD200-receptor-1 (CD200R1). Recently, we showed that CD200 is expressed on keratinocytes and plays a role in protecting hair follicles from autoimmune attack. Here, we report the characterization of cell surface and mRNA expression of CD200R1 by cells of the murine epidermis. In addition, we report mRNA expression for other members of the CD200R-family (R2–R4) by quantitative real-time RT-PCR. Variable levels of CD200R1, R2, R3, and R4 mRNA were detected in bulk epidermal cell suspensions. Freshly isolated Langerhans cells (LC) preferentially expressed CD200R1. Consistent with an inhibitory role for CD200: CD200R1 interaction, LC obtained from mice deficient in CD200 (CD200À/À) were in a heightened state of activation as compared with wildtype (CD200þ/þ) cells. Freshly isolated dendritic epidermal T cells (DETC) expressed low levels of CD200R1, R2, and R3 mRNA, but they preferentially increased cell surface and mRNA expression of CD200R1 upon activation in vitro. In functional assays using sub-optimal CD3 signaling, immobilized CD200 inhibited DETC proliferation and cytokine secretion. Collectively, these results suggest that CD200: CD200R interactions may play a role in regulating both LC and DETC in cutaneous immune reactions.
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影响因子:
2.9
作者:
DLUHY, RA;CAMERON, DG;MENDELSOHN, R
通讯作者:
MENDELSOHN, R
DOI:
--
发表时间:
1985
期刊:
Biochemical and Biophysical Research Communications - BBRC
影响因子:
--
作者:
L. Vicentini;F. Di Virgilio;A. Ambrosini;T. Pozzan;J. Meldolesi
通讯作者:
J. Meldolesi
DOI:
--
发表时间:
1984
期刊:
Biochemical and Biophysical Research Communications - BBRC
影响因子:
--
作者:
S. Ohsako;T. Deguchi
通讯作者:
T. Deguchi
DOI:
--
发表时间:
1984
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Brown,RD;Berger,KD;Taylor,P
通讯作者:
Taylor,P
影响因子:
4.1
作者:
L. Limbird
通讯作者:
L. Limbird