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The role of MDM2 and MDM4 in breast cancer development and prevention


The major cause of death from breast cancer is not the primary tumour, but relapsing, drug-resistant, metastatic disease. Identifying factors that contribute to aggressive cancer offers important leads for therapy. Inherent defense against carcinogens depends on the individual molecular make-up of each person. Important molecular determinants of these responses are under the control of the mouse double minute (MDM) family: comprised of the proteins MDM2 and MDM4. In normal, healthy adult cells, the MDM family functions to critically regulate measured, cellular responses to stress and subsequent recovery. Proper function of the MDM family is vital for normal breast development, but also for preserving genomic fidelity. The MDM family members are best characterized for their negative regulation of the major tumour suppressor p53 to modulate stress responses. Their impact on other cellular regulators is emerging. Inappropriately elevated protein levels of the MDM family are highly associated with an increased risk of cancer incidence. Exploration of the MDM family members as cancer therapeutic targets is relevant for designing tailored anti-cancer treatments, but successful approaches must strategically consider the impact on both the target cancer and adjacent healthy cells and tissues. This review focuses on recent findings pertaining to the role of the MDM family in normal and malignant breast cells.

Type Journal
ISBN 1759-4685 (Electronic) 1759-4685 (Linking)
Authors Haupt, S.; Vijayakumaran, R.; Panimaya, J.; Burgess, A.; Lim, E.; Haupt, Y.
Responsible Garvan Author Prof Elgene Lim
Publisher Name Journal of Molecular Cell Biology
Published Date 2017-02-01
Published Volume 9
Published Issue 1
Published Pages 53-61
Status Published in-print
DOI 10.1093/jmcb/mjx007
URL link to publisher's version