CD9, a major platelet cell surface glycoprotein, is a ROCA antigen and is expressed in the nervous system
CD9, a major platelet cell surface glycoprotein, is a ROCA antigen and is expressed in the nervous system
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CD9 是一种主要的血小板细胞表面糖蛋白,是一种 ROCA 抗原,在神经系统中表达
DOI:
--
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发表时间:
1995
影响因子:
5.3
通讯作者:
Paul H. Patterson
中科院分区:
文献类型:
--
作者:
Z. Kaprielian;Kyung;Michael Hadjiargyrou;Paul H. Patterson
We previously generated a monoclonal antibody (mAb), ROCA1, which binds preferentially to rostral versus caudal sympathetic ganglia and intercostal nerves. Two other mAbs, ROCA2 and B2C11, bind to the same structures but not in rostrocaudal gradients. All three mAbs recognize a 26 kDa cell surface protein. Amino acid sequence data obtained from the affinity purified 26 kDa protein showed some homology with human CD9, a tetraspan protein implicated in intercellular signaling in hematopoietic cells. Using the PCR, we obtained cDNA clones representing the entire rat CD9 coding sequence from sciatic nerve and sympathetic ganglia. ROCA1, ROCA2, and B2C11 each immunoprecipitate a 26 kDa protein from CHO cells stably transfected with one of the clones, demonstrating that the ROCA cell surface antigen is indeed rat CD9. We find that CD9 mRNA is widely expressed, with particularly high levels present in a number of neural tissues. In situ hybridization demonstrates that peripheral neurons and Schwann cells, as well as adrenal chromaffin cells express CD9 mRNA. Consistent with immunoblot analyses showing that, unlike the ROCA1 epitope, the 26 kDa protein is not expressed in a rostrocaudal gradient, we find similar levels of rat CD9 mRNA in rostral and caudal intercostal nerves. In developing postnatal rat sciatic nerve, CD9 mRNA levels are coordinately regulated with the expression of myelin genes. These results provide another example of a cell surface protein expressed by both hematopoietic and neural cells, and suggest a role for CD9 in intercellular signaling in the nervous system.
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影响因子:
11.2
作者:
Hotta,H;Ross,AH;Huebner,K;Isobe,M;Wendeborn,S;Chao,MV;Ricciardi,RP;Tsujimoto,Y;Croce,CM;Koprowski,H
通讯作者:
Koprowski,H
DOI:
10.1242/dev.119.3.597
发表时间:
1993
期刊:
Development (Cambridge, England)
影响因子:
--
作者:
Birren,SJ;Lo,L;Anderson,DJ
通讯作者:
Anderson,DJ
DOI:
--
发表时间:
1985
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Choi,YC
通讯作者:
Choi,YC
DOI:
--
发表时间:
1990
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Jennings,LK;Fox,CF;Kouns,WC;McKay,CP;Ballou,LR;Schultz,HE
通讯作者:
Schultz,HE
DOI:
10.1073/pnas.88.16.7195
发表时间:
1991
影响因子:
11.1
作者:
Welcher,AA;Suter,U;DeLeon,M;Snipes,GJ;Shooter,EM
通讯作者:
Shooter,EM