A study of astrocytes in retinoblastomas using the immunoperoxidase technique and antibodies to glial fibrillary acidic protein.

A study of astrocytes in retinoblastomas using the immunoperoxidase technique and antibodies to glial fibrillary acidic protein.
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使用免疫过氧化物酶技术和神经胶质纤维酸性蛋白抗体对视网膜母细胞瘤中的星形胶质细胞进行研究。

DOI:
10.1016/0002-9394(83)90014-4
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发表时间:
1983
影响因子:
4.2
通讯作者:
Klintworth,GK
Klintworth,GK
中科院分区:
医学1区
文献类型:
--
作者:
Lane,JC;Klintworth,GK

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我们确定了星形胶质细胞在14个随机选择的福尔马林固定的Paraplast-embedded视网膜母细胞瘤中的12个,使用抗生物素蛋白-生物素-过氧化物酶复合物的免疫过氧化物酶技术和纯化的胶质细胞酸性蛋白抗体。在这两个眼睛,这两个都有广泛的脉络膜浸润视网膜母细胞瘤,我们没有发现含有胶质细胞酸性蛋白的肿瘤细胞。星形胶质细胞在两例中枢神经系统的神经系统内的转移灶中观察到,但很少注意到在蛛网膜下腔内的转移灶,并没有发现在远处转移到其他sites.These研究结果表明,虽然一些星形胶质细胞可能成为纳入视网膜母细胞瘤的肿瘤细胞增殖和肿瘤生长,其他增殖的肿瘤。虽然我们在一些视网膜母细胞瘤中发现了含有胶质细胞酸性蛋白的细胞灶,但在我们研究的任何视网膜母细胞瘤中都没有观察到肿瘤细胞向胶质细胞分化的令人信服的证据。
We identified astrocytes in 12 of 14 randomly selected formalin-fixed Paraplast-embedded retinoblastomas, using the avidin-biotin-peroxidase complex of the immunoperoxidase techniques and antibodies to purified glial fibrillary acidic protein. In two of these eyes, both of which had extensive choroidal invasion by retinoblastoma, we found no tumor cells containing glial fibrillary acidic protein. Astrocytes were observed in metastases within the neurologic tissue of the central nervous system in two cases, but were rarely noted in metastatic foci within the subarachnoid space, and were not found in distant metastases to other sites.These findings suggested that although some astrocytes may become incorporated into retinoblastomas from the retina as the neoplastic cells proliferate and the tumor grows, others proliferate in response to the tumor. Although we found foci of cells containing glial fibrillary acidic protein in some retinoblastomas, convincing evidence of glial differentiation from tumor cells was not observed in any of the retinoblastomas we studied.
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