Insufficient Inactivation of HIV-1 in Human Cryo Poor Plasma by Beta-propiolactone: Results from a Highly Accurate Virus Detection Method

doi:10.1006/biol.1993.1082

Biologicals

Volume 21, Issue 3, September 1993, Pages 251-258

https://doi.org/10.1006/biol.1993.1082 Get rights and content

Abstract

Abstract. Human cryo poor plasma was spiked with high titre HIV-1 and subjected to a β-propiolactone (β-PL) inactivation procedure. The residual titre of HIV-1 was measured using a sensitive and accurate titration technique based upon the killing of MT-4 cells by HIV and the subsequent inability to incorporate ³H-thymidine. It was found that under these conditions a reduction of only 1 log virus titre was achieved after one hour exposure to β-PL and of 1·8 logs after 5 h. The presence of viable HIV was confirmed using immunohistochemical techniques, by transfer of live virus to fresh cells, and by production of reverse transcriptase. These results have obvious implications for products where human plasma is treated with β-PL as the only virus inactivation step.

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Original PapersInsufficient Inactivation of HIV-1 in Human Cryo Poor Plasma by Beta-propiolactone: Results from a Highly Accurate Virus Detection Method

Abstract

Original Papers
Insufficient Inactivation of HIV-1 in Human Cryo Poor Plasma by Beta-propiolactone: Results from a Highly Accurate Virus Detection Method