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Type 1 Nuclear Receptor Activity in Breast Cancer: Translating Preclinical Insights to the Clinic

Abstract

The nuclear receptor (NR) family of transcription factors is intimately associated with the development, progression and treatment of breast cancer. They are used diagnostically and prognostically, and crosstalk between nuclear receptor pathways and growth factor signalling has been demonstrated in all major subtypes of breast cancer. The majority of breast cancers are driven by estrogen receptor alpha (ER), and anti-estrogenic therapies remain the backbone of treatment, leading to clinically impactful improvements in patient outcomes. This serves as a blueprint for the development of therapies targeting other nuclear receptors. More recently, pivotal findings into modulating the progesterone (PR) and androgen receptors (AR), with accompanying mechanistic insights into NR crosstalk and interactions with other proliferative pathways, have led to clinical trials in all of the major breast cancer subtypes. A growing body of evidence now supports targeting other Type 1 nuclear receptors such as the glucocorticoid receptor (GR), as well as Type 2 NRs such as the vitamin D receptor (VDR). Here, we reviewed the existing preclinical insights into nuclear receptor activity in breast cancer, with a focus on Type 1 NRs. We also discussed the potential to translate these findings into improving patient outcomes.

Type Journal
ISBN 2072-6694 (Print) 2072-6694 (Linking)
Authors Kumar, S.; Freelander, A.; Lim, E.
Responsible Garvan Author Prof Elgene Lim
Publisher Name Cancers
Published Date 2021-10-31
Published Volume 13
Published Issue 19
Published Pages 4972
Status Published in-print
DOI 10.3390/cancers13194972
URL link to publisher's version https://www.ncbi.nlm.nih.gov/pubmed/34638457