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McAllister, K.A. et al.

McAllister, Wiseman,

Are Trp53 rescue of Brca1 embryonic lethality and Trp53/Brca1 breast cancer association related?

Brca1 is involved in multiple biological pathways including DNA damage repair, transcriptional regulation, and cell-cycle progression. A complex pattern of interactions of Brca1 with Trp53 has also emerged. Xu and coworkers found that haploid loss of Trp53 significantly reduces the embryonic lethality observed in mice with a homozygous in-frame deletion of Brca1 exon 11. They report that widespread apoptosis correlates with the embryonic lethality resulting from this homozygous delta11 Brca1 mutation. A mechanism responsible for Brca1-associated carcinogenesis is proposed. These experiments extend our knowledge of a complex Brca1/Trp53 relationship. However, the precise mechanisms through which Brca1 interacts with Trp53 to suppress mammary tumor formation have yet to be elucidated.[1]

References

Are Trp53 rescue of Brca1 embryonic lethality and Trp53/Brca1 breast cancer association related? McAllister, K.A., Wiseman, R.W. Breast Cancer Res. (2002) [Pubmed]

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