Title:Crosstalk between Platelet and Bacteria: A Therapeutic Prospect
Volume: 25
Issue: 38
Author(s): Vivek K. Yadav, Pradeep K. Singh, Vishnu Agarwal*Sunil K. Singh*
Affiliation:
- Department of Biotechnology Motilal Nehru National Institute of Technology Allahabad, Prayagraj,India
- Department of Animal Sciences, Central University of Punjab, Bathinda, Punjab,India
Keywords:
Platelet, infection, neutrophil extracellular traps, sepsis, thrombosis, cardiovascular complications.
Abstract: Platelets are typically recognized for their roles in the maintenance of hemostasis and vascular wall
repair to reduce blood loss. Beyond hemostasis, platelets also play a critical role in pathophysiological conditions
like atherosclerosis, stroke, thrombosis, and infections. During infection, platelets interact directly and indirectly
with bacteria through a wide range of cellular and molecular mechanisms. Platelet surface receptors such as
GPIbα, FcγRIIA, GPIIbIIIa, and TLRs, etc. facilitate direct interaction with bacterial cells. Besides, the indirect
interaction between platelet and bacteria involves host plasma proteins such as von Willebrand Factor (vWF),
fibronectin, IgG, and fibrinogen. Bacterial cells induce platelet activation, aggregation, and thrombus formation in
the microvasculature. The activated platelets induce the Neutrophil Extracellular Traps (NETs) formation, which
further contribute to thrombosis. Thus, platelets are extensively anticipated as vital immune modulator cells during
infection, which may further lead to cardiovascular complications. In this review, we cover the interaction
mechanisms between platelets and bacteria that may lead to the development of thrombotic disorders. Platelet
receptors and other host molecules involved in such interactions can be used to develop new therapeutic strategies
to combat against infection-induced cardiovascular complications. In addition, we highlight other receptor and
enzyme targets that may further reduce infection-induced platelet activation and various pathological conditions.