Targeting androgen receptor stability and degradation: approaches for developing a therapy for spinal and bulbar...

Area of Science:

• Molecular biology
• Cellular biology
• Neuroscience

Background:

• Protein misfolding and aggregation are implicated in various diseases.
• The cellular Protein Quality Control (PQC) system manages misfolded proteins.
• Impairment of the PQC system contributes to neurodegenerative disorders such as spinal and bulbar muscular atrophy (SBMA).

Purpose of the Study:

• To summarize the mechanisms governing androgen receptor (AR) protein stability and degradation.
• To review the role of the PQC system in the pathogenesis of SBMA.
• To explore potential therapeutic strategies for SBMA targeting PQC modulation.

Main Methods:

• Literature review of protein folding dynamics.
• Analysis of PQC system involvement in SBMA.
• Overview of therapeutic interventions for SBMA.

Main Results:

• AR protein stability and degradation are tightly regulated under physiological conditions.
• Misfolded expanded AR (ARexp) accumulates in SBMA due to PQC system dysfunction.
• PQC system modulation presents a promising therapeutic avenue for SBMA.

Conclusions:

• Understanding AR protein dynamics and PQC function is crucial for SBMA research.
• Targeting the PQC system offers a potential strategy to mitigate ARexp toxicity in SBMA.
• Further research into PQC modulation could lead to novel SBMA treatments.