Photochemical inactivation of viruses and bacteriophage in plasma and plasma fractions.
Transfusion-associated transmission of viral diseases remains a problem. A number of methods have been developed to inactivate viral pathogens in plasma and plasma fractions, including: dry heating, wet heating, solvent-detergent treatment, and immunoaffinity purification. While some of these methods successfully inactivate pathogenic viruses, inactivation may be incomplete or result in damage to labile plasma proteins. We have developed a method of photochemical decontamination (PCD) using psoralens and long wavelength ultraviolet light to inactivate pathogenic viruses. In the present study, a spectrum of model viruses have been added to plasma and plasma fractions to examine the efficiency of photochemical decontamination and the effects on labile plasma coagulation factors. Both RNA and DNA viruses have been inactivated under conditions which permit preservation of coagulation protein function. PCD technology appears to offer a promising solution to decontamination of blood products.
Morel
P
P
Delta Memorial Blood Bank, Stockton, California.
Lin
L
L
Wiesehahn
G
G
Corash
L
L
D001435:Bacteriophages / Q000187:drug effects* / Q000502:physiology / Q000528:radiation effects; D001769:Blood / Q000187:drug effects / Q000382:microbiology* / Q000528:radiation effects; D001779:Blood Coagulation Factors / Q000187:drug effects / Q000528:radiation effects; D001798:Blood Proteins / Q000187:drug effects / Q000528:radiation effects; D011564:Furocoumarins / Q000494:pharmacology* / Q000528:radiation effects; D006801:Humans; D015394:Molecular Structure; D010777:Photochemistry; D014466:Ultraviolet Rays; D014777:Virus Diseases / Q000517:prevention & control* / Q000635:transmission; D018406:Virus Physiological Phenomena; D014779:Virus Replication / Q000187:drug effects / Q000528:radiation effects; D014780:Viruses / Q000187:drug effects* / Q000528:radiation effects
D001779:Blood Coagulation Factors; D001798:Blood Proteins; D011564:Furocoumarins