Dissecting Platelet's Role in Viral Infection: A Double-Edged Effector of the Immune System
Hajar El Filaly1, Meryem Mabrouk2, Farah Atifi3
1Health & Environment Laboratory, Ain Chock Faculty of Sciences, Hassan II University of Casablanca, Casablanca 20000, Morocco.
International Journal of Molecular Sciences
|February 11, 2023
Summary
Platelets are immune cells involved in hemostasis and immunity. This review explores how platelets modulate immune responses during viral infections, impacting platelet count and adaptive immunity.
Area of Science:
- Immunology
- Hematology
- Infectious Diseases
Background:
- Platelets are crucial for hemostasis and thrombosis.
- Recent research positions platelets within the immune continuum, influencing innate and adaptive immunity.
- Platelets express Toll-Like Receptors (TLRs), mediating inflammatory responses and immune cell interactions.
Purpose of the Study:
- To review the multifaceted role of platelets in immune responses.
- To highlight platelet activation variability in response to hemostatic versus pathogen stimuli.
- To examine platelet modulation of count and adaptive immunity during viral infections.
Main Methods:
- Literature review of studies on platelet function in immunity.
- Analysis of research on Toll-Like Receptor (TLR) expression and function on platelets.
- Synthesis of findings on platelet activation and immune modulation in viral contexts.
Main Results:
- Platelet activation differs significantly between hemostatic and pathogen-induced stimuli.
- Platelets contribute to immune cell-cell reactions via receptors like TLRs.
- Platelets influence adaptive immune responses and can modulate platelet counts during viral infections.
Conclusions:
- Platelets are key players in both hemostasis and immune responses.
- Understanding differential platelet activation is vital for comprehending their immune roles.
- Platelets significantly impact the adaptive immune system and platelet counts during viral infections.
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