Microparticles in health and disease

Area of Science:

• Biochemistry
• Cell Biology
• Hematology

Background:

• Microparticles (MPs) are small vesicles released from various cell types into circulation.
• They carry cellular components and transfer biologic information, influencing physiological and pathological processes.
• MPs are implicated in inflammation, thrombosis, and various diseases, with growing interest in human medicine.

Purpose of the Study:

• To provide a comprehensive review of microparticle biology, focusing on their role in health, disease, and transfusion medicine.
• To highlight the current state of microparticle research, acknowledging its nascent stage and limitations.
• To emphasize the need for standardized methods in microparticle collection, storage, and quantitation.

Main Methods:

• Review of existing literature on microparticle formation, composition, and function.
• Analysis of the role of microparticles in various physiological and pathological conditions.
• Discussion of current challenges and future directions in microparticle research, including preanalytic variables and quantitation methods.

Main Results:

• Microparticle release can be triggered by physiological or pathological stimuli.
• MPs contribute to proinflammatory and procoagulant effects, linking them to thrombotic and cardiovascular diseases.
• Research in veterinary medicine concerning MPs is limited, primarily focusing on inherited disorders, blood storage, and leukoreduction.

Conclusions:

• Microparticle research is rapidly advancing but still in its early stages, necessitating standardized methodologies.
• Understanding microparticle quantitation and activity correlation is crucial for elucidating their true role in health and disease.
• This review serves as a snapshot of current knowledge, emphasizing the importance of cellular exocytic vesiculation in health, disease, and transfusion medicine.