[cAMP-PKA signal pathway in the lower eukaryotes].

Area of Science:

• Molecular Biology
• Cellular Biology
• Evolutionary Biology

Context:

• Unicellular eukaryotes represent early forms of eukaryotic life, offering insights into fundamental cellular processes.
• Signal transduction pathways are crucial for cellular communication and adaptation.
• The cyclic adenosine monophosphate-protein kinase A (cAMP-PKA) pathway is a conserved signaling mechanism.

Purpose:

• To review current data on cAMP-PKA pathway transduction mechanisms in unicellular eukaryotes.
• To explore the evolutionary origins of eukaryotic signal transduction systems.
• To synthesize current understanding and identify future research directions.

Summary:

• This review consolidates information on how unicellular eukaryotes utilize the cAMP-PKA signaling pathway for cellular functions.
• It examines the molecular mechanisms underlying signal transduction in these organisms.
• The review also delves into the evolutionary development of complex signaling systems from simpler eukaryotic origins.

Impact:

• Provides a comprehensive overview of cAMP-PKA signaling in a key model system.
• Contributes to understanding the evolution of cell signaling.
• Informs research on fundamental cellular processes and potential therapeutic targets.