BARRES, BA and HART, IK and COLES, HSR and BURNE, JF and VOYYODIC, JT and RICHARDSON, WD and RAFF, MC (1992) CELL-DEATH AND CONTROL OF CELL-SURVIVAL IN THE OLIGODENDROCYTE LINEAGE. CELL , 70 (1) 31 - 46.
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Abstract
Dead cells are observed in many developing animal tissues, but the causes of these normal cell deaths are mostly unknown. We show that about 50% of oligodendrocytes normally die in the developing rat optic nerve, apparently as a result of a competition for limiting amounts of survival signals. Both platelet-derived growth factor and insulin-like growth factors are survival factors for newly formed oligodendrocytes and their precursors in culture. Increasing platelet-derived growth factor in the developing optic nerve decreases normal oligodendrocyte death by up to 90% and doubles the number of oligodendrocytes in 4 days. These results suggest that a requirement for survival signals is more general than previously thought and that some normal cell deaths in nonneural tissues may also reflect competition for survival factors.
| Type: | Article |
|---|---|
| Title: | CELL-DEATH AND CONTROL OF CELL-SURVIVAL IN THE OLIGODENDROCYTE LINEAGE |
| Keywords: | GROWTH FACTOR-I, RAT OPTIC-NERVE, GLIAL PROGENITOR-CELL, TYPE-2 ASTROCYTE DEVELOPMENT, FREE SUPPLEMENTED MEDIUM, MONOCLONAL-ANTIBODY, NEURONAL DEATH, CHICK-EMBRYO, NEUROTROPHIC FACTOR, PROTEIN-SYNTHESIS |
| UCL classification: | UCL > School of Life and Medical Sciences > Faculty of Life Sciences > Biosciences (Division of) |
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