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Updated: May 14, 2026

Sequencing Small Non-coding RNA from Formalin-fixed Tissues and Serum-derived Exosomes from Castration-resistant Prostate Cancer Patients
Published on: November 19, 2019
Mini-review: Foldosome regulation of androgen receptor action in prostate cancer
Laia Querol Cano1, Derek N Lavery, Charlotte L Bevan
1Department of Surgery and Cancer, Imperial Centre for Translational and Experimental Medicine, Hammersmith Hospital Campus, Imperial College London, London, United Kingdom.
Abstract:
Steroid hormone receptors play diverse roles in many aspects of human physiology including cell division, apoptosis and homeostasis, tissue differentiation, sexual development and response to stress. These ligand-activated transcription factors require the functional activity of numerous chaperone and chaperone-associated proteins, collectively termed the foldosome, at the crucial step of ligand recognition and binding. Since the initial isolation of foldosome components and pioneering research by Pratt, Toft and colleagues we understand much regarding cytosolic receptor function. The classical view, that the role of foldosome components is restricted to the cytosol, has been modified over recent years by research highlighting additional roles of chaperone proteins in nuclear translocation and target gene expression. Further, dysregulation of chaperone activity and expression has been implicated in various cancers, including breast and prostate cancer. Consequently, the foldosome provides an attractive therapeutic target in steroid hormone receptor-driven malignancies. This review summarises current knowledge of how the foldosome impacts upon androgen receptor signalling, which is the key therapeutic target on prostate cancer, and how foldosome components may be used as biomarkers or therapeutic targets in this disease.
Insights
The foldosome, crucial for steroid hormone receptor function, is increasingly recognized for roles beyond the cytosol. Its components are promising therapeutic targets and biomarkers for prostate cancer.
Area of Science:
- Molecular Biology
- Cell Biology
- Biochemistry
Background:
- Steroid hormone receptors are vital transcription factors regulating numerous physiological processes.
- The foldosome, comprising chaperone proteins, is essential for ligand binding to these receptors.
- Recent findings reveal foldosome involvement in nuclear translocation and gene expression, expanding its known functions.
Purpose of the Study:
- To review the impact of the foldosome on androgen receptor signaling.
- To explore the potential of foldosome components as biomarkers and therapeutic targets in prostate cancer.
Main Methods:
- Literature review of current research on foldosome components and steroid hormone receptors.
- Focus on studies investigating androgen receptor signaling pathways.
- Analysis of data linking foldosome dysregulation to cancer development.
Main Results:
- The foldosome's role extends to nuclear translocation and target gene expression, not just ligand binding.
- Dysregulation of foldosome components is implicated in various cancers, notably prostate cancer.
- Androgen receptor signaling, a key target in prostate cancer, is significantly influenced by the foldosome.
Conclusions:
- The foldosome is a critical regulator of androgen receptor signaling.
- Foldosome components represent attractive therapeutic targets and potential biomarkers for prostate cancer management.
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