Ribosome-associated proteins in fungal ribosome homeostasis: Conceptual opportunities for peptide-based modulation.

Abstract

Ribosomes are essential macromolecular machines that facilitate protein synthesis and have long been recognized as effective targets for antimicrobial agents. While structural differences between prokaryotic and eukaryotic ribosomes form the basis for selective antibiotics against bacteria, similar approaches for developing antifungal agents targeting ribosomes have remained limited due to the high sequence and structural conservation with human ribosomes. However, emerging insights into ribosome homeostasis, including ribosome biogenesis, turnover, and hibernation, have uncovered a set of ribosome-associated proteins whose function is critical yet display greater sequence divergence from their human counterparts. These observations suggest that these regulatory components may represent viable antifungal targets by disrupting fungal proteostasis. The present review aims to explore this developing concept by examining ribosome-associated factors and considering whether short ribosomal protein-derived peptides may eventually serve as druggable molecules for selectively modulating these pathways in fungal pathogens.