Neural expression profile of Elav-like genes in human brain.
Clin Neuropathol
; 18(1): 17-22, 1999.
Article
en En
| MEDLINE
| ID: mdl-9988134
BACKGROUND: Hel-N1 and HuD belong to the elav gene family and have a considerable role in neuronal development. However, there is only limited information available on the expression profile in human brain and neural tumor cell lines. METHOD: Therefore, RT-PCR analysis has been performed on human fetal, normal adult, and psychiatric brains (from patients with schizophrenia, Alzheimer's disease, and alcoholism) as well as 20 glioblastoma and 9 medulloblastoma cell lines. RESULTS: Both, Hel-N1 and HuD were abundantly expressed in all brain samples with no obvious difference. However, the neural tumor cell lines showed a differential expression pattern. The medulloblastoma cell lines expressed at least one of the genes in a frequency of 67% for HuD and 78% for Hel-N1 transcripts, respectively. In contrast to the glioblastoma cell lines, which revealed no evidence for HuD RT-PCR products. Surprisingly, 55% of the glioblastoma cell lines showed Hel-N1 expression. CONCLUSION: These observations indicate that Hel-N1 and HuD participate in molecular processes in human brain, both during development and in the mature adult brain. Hel-N1 and HuD transcriptional activity are stable markers for medulloblastoma cell lines, a tumor, which is thought to be derived from a neuronal precursor cell. The role of Hel-N1 in glioblastomas, the most prominent representative of the glial tumors is presently unclear. This finding is the first indication for a possible involvement of an Elav-like gene product in the glial cell lineage.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Ribonucleoproteínas
/
Encéfalo
/
Regulación del Desarrollo de la Expresión Génica
/
Proteínas del Tejido Nervioso
Tipo de estudio:
Observational_studies
Límite:
Humans
Idioma:
En
Revista:
Clin Neuropathol
Año:
1999
Tipo del documento:
Article
País de afiliación:
Alemania
Pais de publicación:
Alemania