Abstract |
With the use of antisera against bovine retinal S-antigen and bovine opsin the authors demonstrate that in cerebellar medulloblastomas certain tumor cells display immunocytochemical properties characteristic of retinal photoreceptors and pinealocytes. S- antigen-like and opsin-like immunoreactions occur in nine of 28 medulloblastomas investigated. All tumors displaying S- antigen-like immunoreactive neoplastic cells also contain opsin-like immunoreactive cells; however, the opsin-like immunoreactive cells were less frequent than the S- antigen-like immunoreactive cells throughout all positive cases. The immunoreactive cells displayed several long processes. Generally, both S- antigen and opsin-like immunoreactive cells considerably vary in number among individual tumors. The results indicate that certain neoplastic cells of medulloblastoma are capable of expression of photoreceptor-specific proteins and, thus, may be closely related to tumor cells of retinoblastoma and pineocytomas previously shown to bind antisera against retinal S-antigen and opsin. No S- antigen and opsin-like immunoreaction was found in malignant teratomas and germinomas of the pineal gland, oat cell tumors, astrocytomas, ependymomas, oligodendrogliomas, glioblastomas, gangliogliomas, gangliocytoma, ganglioneuroblastomas, neuroblastomas, and esthesioneuroblastoma.
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Authors | H W Korf, M Czerwionka, J Reiner, W Schachenmayr, J J Schalken, W de Grip, I Gery |
Journal | Cancer
(Cancer)
Vol. 60
Issue 8
Pg. 1763-6
(Oct 15 1987)
ISSN: 0008-543X [Print] United States |
PMID | 2958128
(Publication Type: Journal Article, Research Support, Non-U.S. Gov't)
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Chemical References |
- Eye Proteins
- Retinal Pigments
- Rod Opsins
- S100 Proteins
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Topics |
- Cerebellar Neoplasms
(analysis, ultrastructure)
- Eye Proteins
(analysis)
- Female
- Humans
- Immunohistochemistry
- Male
- Medulloblastoma
(analysis, ultrastructure)
- Photoreceptor Cells
(analysis)
- Retinal Pigments
(analysis)
- Rod Opsins
- S100 Proteins
(analysis)
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