Astrocyte Growth, Reactivity, and the Target of the Antiproliferative Antibody, TAPA
Astrocyte Growth, Reactivity, and the Target of the Antiproliferative Antibody, TAPA
复制标题
星形胶质细胞的生长、反应性和抗增殖抗体 TAPA 的靶标
作者：
Eldon E. Geisert Jr.;Lijuan Yang;M. H. Irwin
Reactive astrocytes form a scar after injury to the CNS that many investigators believe contributes to the lack of functional regeneration. In the present study, we identify an astrocytic membrane protein that appears to play an important role in reactive gliosis and scar formation. Cultures of rat astrocytes were used as a model system to produce and to screen monoclonal antibodies that would alter cell growth. One antibody, AMP1, was identified that depresses the mitotic activity of cultured glial cells and alters their morphology. Expression cloning reveals that the antigen on the external surface of the cultured glial cells has a high degree of homology with the human lymphocyte protein called Target of the Anti-Proliferative Antibody (TAPA-1; this rat protein will be referred to as rTAPA). rTAPA is a member of the tetramembrane-spanning superfamily of proteins and, as with other members of this family of proteins, rTAPA is associated with the regulation of cellular interactions and mitotic activity. After an injury to the cerebral cortex, there is a dramatic increase in AMP1 immunoreactivity that is spatially restricted to the reactive astrocytes at the glial scar. This change represents an upregulation of a membrane protein, rTAPA, that is approximately equal to the increase observed for glial fibrillary acidic protein. The high levels of rTAPA at the site of CNS injury and the AMP1 antibody perturbation studies indicate that rTAPA may play a prominent role in the response of astrocytes to injury and in glial scar formation.
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抗人血小板 p24/CD9 单克隆抗体介导的人血小板活化。
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
人类细胞骨架α-肌动蛋白基因的克隆和染色体定位揭示了与β-血影蛋白基因的联系。
影响因子：
9.8
作者：
Youssoufian,H;McAfee,M;Kwiatkowski,DJ
通讯作者：
Kwiatkowski,DJ
DOI：
10.1073/pnas.89.7.2634
发表时间：
1992-04-01
影响因子：
11.1
作者：
LAYWELL, ED;DORRIES, U;STEINDLER, DA
通讯作者：
STEINDLER, DA
TAPA-1 分子在 B 细胞表面与 HLA-DR 分子结合。
DOI：
--
发表时间：
1993
期刊：
Journal of immunology (Baltimore, Md. : 1950)
影响因子：
--
作者：
Schick,MR;Levy,S
通讯作者：
Levy,S
抗 TAPA-1 抗体可诱导蛋白质酪氨酸磷酸化，而这种磷酸化可通过增加细胞内硫醇水平来阻止。
DOI：
--
发表时间：
1993
期刊：
Journal of immunology (Baltimore, Md. : 1950)
影响因子：
--
作者：
Schick,MR;Nguyen,VQ;Levy,S
通讯作者：
Levy,S