Polyamines in mammalian pathophysiology

Area of Science:

• Biochemistry
• Cell Biology
• Physiology

Background:

• Polyamines (PAs) are essential organic polycations critical for cell viability across all life forms.
• In mammals, PAs regulate key physiological processes including cell proliferation, viability, nutrition, fertility, and nervous and immune system functions.
• Dysregulation of PA metabolism is implicated in numerous pathologies, highlighting its significant pathophysiological importance.

Purpose of the Study:

• To review the molecular characteristics and physiological roles of polyamines in living organisms.
• To elucidate the metabolic specificities and interconnectedness of mammalian PA metabolism with other metabolic modules.
• To synthesize current knowledge on PA-modulated physiological processes, their molecular bases, and identify knowledge gaps in human physiology.

Main Methods:

• Review of molecular characteristics of polyamines.
• Analysis of mammalian polyamine metabolism, including gene expression and crosstalk with other metabolic modules.
• Synthesis of physiological processes modulated by PAs in humans and animal models, and examination of regulatory mechanisms.

Main Results:

• Polyamines are fundamental to cell viability and mammalian physiological processes.
• Mammalian PA metabolism is robust and interconnected with essential metabolic pathways.
• Significant knowledge gaps persist regarding the specific roles of PAs in human physiology and their link to pathologies.

Conclusions:

• Polyamines play indispensable roles in fundamental biological processes.
• Altered PA metabolism can disrupt homeostasis, leading to disease.
• Further research is needed to fully understand the complex roles of polyamines in human health and disease.