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Differentiation of 3T3-L1 Fibroblasts to Adipocytes Induced by Transfection of ras Oncogenes

Benito, Manuel, Porras, Almudena, Nebreda, Angel R., Santos, Eugenio·1991·Science

Abstract

Mammalian 3T3-L1 cells differentiate into adipocytes after continuous exposure to pharmacological doses of insulin or physiological doses of insulin-like growth factor I (IGF-1). Expression of transfected ras oncogenes led to differentiation of these cells into adipocytes in the absence of externally added insulin or IGF-I. Cells transfected with normal ras genes or the tyrosine kinase trk oncogene did not differentiate. Transfection with a dominant inhibitory ras mutant resulted in inhibition of differentiation. Exposure of untransfected 3T3-L1 cells to insulin stimulated formation of the active Ras⋅GTP complex. These observations indicate that Ras proteins participate in signal transduction pathways initiated by insulin and IGF-I in these cells.

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Metadata

Authors
Benito, M., Porras, A., Nebreda, A. R., & Santos, E.
Venue
Science
Published
1991-08-02
Volume
253
Issue
5019
Pages
565-568
ISSN
  • 0036-8075 (ISSN-L)
  • 1095-9203
OpenAlex
W1974997269
Cited by
161
References
0
FWCI
3.68
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Differentiation of 3T3-L1 Fibroblasts to Adipocytes Induced by Transfection of ras Oncogenes. https://app.cochat.ai/papers/10.1126/science.1857988
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Benito, M., Porras, A., Nebreda, A. R., & Santos, E. (1991). Differentiation of 3T3-L1 Fibroblasts to Adipocytes Induced by Transfection of ras Oncogenes. Science. https://doi.org/10.1126/science.1857988

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.