Tidy up - The unfolded protein response in sepsis

Area of Science:

• Cellular Stress Response
• Immunology
• Molecular Biology

Background:

• Infectious diseases cause tissue damage via pathogens, toxins, and immune responses.
• Failure to control this damage can lead to severe conditions like sepsis, characterized by organ dysfunction and high mortality.
• The unfolded protein response (UPR) is a key adaptive mechanism to mitigate endoplasmic reticulum stress during infection.

Purpose of the Study:

• To review the current understanding of the unfolded protein response (UPR).
• To elucidate the role of UPR in infectious diseases and sepsis.
• To discuss UPR regulation mechanisms and clinical implications in sepsis management.

Main Methods:

• Literature review of current knowledge on UPR.
• Analysis of UPR's role in pathogenesis of infectious diseases.
• Examination of UPR regulatory pathways and their impact on sepsis.

Main Results:

• UPR mitigates infection-associated stress by reducing protein translation, enhancing protein folding, and promoting degradation of misfolded proteins.
• While beneficial, excessive or prolonged UPR activation can lead to cell death and detrimental effects.
• Temporal and fine-tuned regulation of UPR is essential for managing infectious disease severity and sepsis outcomes.

Conclusions:

• UPR plays a dual role in infectious diseases, offering protective mechanisms but also posing risks with dysregulation.
• Optimizing UPR modulation holds potential for improving patient outcomes in sepsis.
• Further research into UPR regulation is critical for clinical applications in infectious disease and sepsis treatment.