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Título: | Inositol phospho-oligosaccharide stimulates cell proliferation in the early developing inner ear |
Autor: | Varela-Nieto, Isabel CSIC ORCID ; Represa, Juan; Ávila, Matías A. CSIC ORCID; Miner, Cristina CSIC; Mato, José M.; Giráldez, Fernando | Fecha de publicación: | 1991 | Editor: | Elsevier | Citación: | Developmental Biology 143(2): 432-435 (1991) | Resumen: | The ability of an inositol phospho-oligosaccharide (POS) to mimic the mitogenic effects of nerve growth factor (NGF) and insulin on the early development of the inner ear was investigated. POS (10 μM) stimulated the incorporation of [3H]thymidine into the cochleovestibular ganglion by 3.9-fold. NGF (50 ng/ml) stimulation was 4.7-fold. POS and NGF showed no additivity. Cells induced to proliferate by POS overlapped with those expressing NGF receptors. POS, like insulin, potentiated the mitogenic effect of bombesin on the otic vesicle epithelium. DNA synthesis in the presence of bombesin (100 nM) plus POS (10 μM) was increased by 6.4-fold. POS stimulation was not additive with insulin. The results suggest that POS may play a role in growth factor regulation of cell proliferation during embryonic development. | URI: | http://hdl.handle.net/10261/78412 | DOI: | 10.1016/0012-1606(91)90095-K | Identificadores: | doi: 10.1016/0012-1606(91)90095-K issn: 0012-1606 |
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