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- W337466218 abstract "Abstract : Accruing evidence suggests that integrin-dependent cell attachment signaling, and estrogen hormonal response are closely interconnected. For example, studies by us and others of the BCAR proteins (BCAR1 and BCAR3: (1, 2)) have indicated that these proteins physically associate with each other, and function both in signal transduction relevant to integrin stimulation, and in mediation of Tamoxifen (Tam) resistance. The goal of this proposal was to explore the interrelationship between integrin signaling, cell attachment status, and Tam resistance. A specific hypothesis was that activation of integrin signaling reduces the Tam-dependent inhibition of essential estrogen-dependent transcription. In particular, the proposal sought to explore how the formation of organized three-dimensional structures (spheroids) by metastasizing tumor cells, which greatly enhances their resistance to treatment with a number of drugs (reviewed in (4), might modulate Tam resistance and the estrogen-dependent transcriptional program. As described below, we found that spheroids unexpectedly did not result in increased Tam resistance. However, we did find that manipulation of expression of BCAR1 resulted in changes in the transcription of estrogen-regulated genes, suggesting the initial hypothesis of an integrin-estrogen connection at the level of transcription is worth further investigation." @default.
- W337466218 created "2016-06-24" @default.
- W337466218 creator A5004302234 @default.
- W337466218 date "2004-08-01" @default.
- W337466218 modified "2023-09-23" @default.
- W337466218 title "Integrin-dependent Antagonism of Tamoxifen Therapy through Transcriptional Replacement: Establishing a Basis for a New Combined Therapy" @default.
- W337466218 doi "https://doi.org/10.21236/ada435428" @default.
- W337466218 hasPublicationYear "2004" @default.
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