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ras p21 protein promotes survival and fiber outgrowth of cultured embryonic neurons

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dc.creator Borasio, Gian D.
dc.creator John, Jasson
dc.creator Wittinghofer, Alfred
dc.creator Barde, Y. A.
dc.creator Sendtner, Michael
dc.creator Heumann, Rolf
dc.date 2016-07-14T20:55:21Z
dc.date 2016-07-14T20:55:21Z
dc.date 2009-01
dc.date.accessioned 2021-05-03T13:29:43Z
dc.date.available 2021-05-03T13:29:43Z
dc.identifier Borasio, G.D., John, J., Wittinghofer, A., Barde, Y.A., Sendtner, M. and Heumann, R., 1989. ras p21 protein promotes survival and fiber outgrowth of cultured embryonic neurons. Neuron, 2(1), pp.1087-1096.
dc.identifier http://hdl.handle.net/20.500.11810/3218
dc.identifier 10.1016/0896-6273(89)90233-X
dc.identifier.uri http://hdl.handle.net/20.500.11810/3218
dc.description Full text can be accessed at http://www.sciencedirect.com/science/article/pii/089662738990233X
dc.description Although evidence obtained with the PC12 cell line has suggested a role for the ras oncogene proteins in the signal transduction of nerve growth factor-mediated fiber outgrowth, little is known about the signal transduction mechanisms involved in the neuronal response to neurotrophic factors in nontransformed cells. We report here that the oncogene protein T24-ras, when introduced into the cytoplasm of freshly dissociated chick embryonic neurons, promotes the in vitro survival and neurite outgrowth of nerve growth factor-responsive dorsal rootganglion neurons, brain-derived neurotrophic factor-responsive nodose ganglion neurons, and ciliary neuronotrophic factor-responsive ciliary ganglion neurons. The proto-oncogene product c-Ha-ras also promotes neuronal survival, albeit less strongly. No effect could be observed with truncated counterparts of T24-ras and c-Ha-ras lacking the 23 C-terminal amino acids including the membrane-an-choring, palmityl-accepting cysteine. These results sug-gest a generalized involvement of ras or ras-like proteins in the intracellular signal transduction pathway for neurotrophic factors.
dc.language en
dc.publisher Elsevier
dc.title ras p21 protein promotes survival and fiber outgrowth of cultured embryonic neurons
dc.type Journal Article


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