[Morphology and function of platelets stored in modified platelet additive solution at low temperature]

Area of Science:

• Hematology
• Biotechnology
• Biomedical Engineering

Context:

• Platelet concentrates require optimal storage solutions to maintain viability and function.
• Current plasma-based storage methods have limitations, especially at low temperatures.
• Exploring alternative storage media is crucial for extending platelet shelf-life and therapeutic efficacy.

Purpose:

• To evaluate a modified platelet additive solution (PAS-IIIM) with trehalose as a plasma substitute for low-temperature platelet storage (10°C).
• To compare the efficacy of PAS-IIIM and plasma in preserving platelet function and morphology under various storage conditions.
• To assess the impact of different storage media and temperatures on platelet activation markers, hypotonic shock response, aggregation, and cell integrity.

Summary:

• Platelets stored in 70% PAS-IIIM/30% plasma at 10°C showed comparable morphology preservation to plasma stored at 22°C.
• This PAS-IIIM combination demonstrated better protection than plasma stored at 4°C and plasma with trehalose at -85°C.
• Key indicators like CD62p expression, hypotonic shock response, platelet aggregation, and LDH release were analyzed to assess platelet quality.

Impact:

• PAS-IIIM shows promise as a superior alternative to plasma for chilled platelet storage, potentially enhancing the availability and quality of platelet transfusions.
• This research contributes to developing advanced blood component preservation techniques.
• Findings suggest PAS-IIIM can protect chilled platelets, improving their functional integrity during storage.