Nucleo-cytoplasmic shuttling of progesterone receptor and cell cycle progression of breast cancer cells

G Galasso, E Di Zazzo, M Di Donato, P Giovannelli, B Perillo, A Migliaccio, G Castoria

Article ID: 6450
Vol 32, Issue 4S1, 2018
DOI: https://doi.org/10.54517/jbrha6450
Received: 8 September 2018; Accepted: 8 September 2018; Available online: 8 September 2018; Issue release: 8 September 2018

Abstract

Progesterone receptors (PRs) belong to the steroid receptor superfamily and regulate development, growth and transformation of breast tissues. Different mechanisms, such as ligand binding, posttranscriptional modifications, interaction with signalling effectors or scaffold proteins control the steroid receptor subcellular localization, thereby influencing their activity. Derangement of steroid receptor import/export process often causes receptor delocalization and proliferative diseases of target tissues, such as breast and prostate. However, while the mechanism of steroid receptor nuclear import is well documented, the mechanism of their nuclear export is still unclear.



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