A Leukopak is an enriched leukapheresis product collected from normal peripheral blood. It is composed of a variety of blood cells including monocytes, lymphocytes, platelets, plasma, and red cells. A leukopak contains a higher concentration of cells as compared to standard venipuncture collection methods or buffy coat products.

• Normal Leukopak tests negative for Hepatitis B and C, HIV, HTLV, HCV/HBV, WNV, Trypanasoma cruzi, and Syphilis

Leukopaks are collected in FDA-registered collection centres from institutional review board (IRB) consented healthy human donors by leukapheresis using the COBE® Spectra or Spectra Optia® Apheresis System MNC collection protocol in ACD-A anticoagulant.

Storage: Either prepare cells for long term storage in liquid nitrogen vapour phase or thaw for use. Storage in liquid phase nitrogen is NOT recommended. Short term storage of cells (less than 2 weeks) at –80°C is acceptable, but should be minimised to ensure maximum stability. Once thawed, samples must be used immediately.