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M94A0018.TXT
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1994-10-01
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Document 0018
DOCN M94A0018
TI Inactivation of free and cell-associated human immunodeficiency virus in
platelet suspensions by aminomethyltrimethylpsoralen and ultraviolet
light.
DT 9412
AU Benade LE; Shumaker J; Xu Y; Chen X; Dodd RY; Jerome H. Holland
Laboratory for the Biomedical Sciences,; American Red Cross, Rockville,
Maryland.
SO Transfusion. 1994 Aug;34(8):680-4. Unique Identifier : AIDSLINE
MED/94353463
AB BACKGROUND: It has previously been reported that 40 micrograms per mL of
aminomethyltrimethylpsoralen (AMT) plus 2.4 to 7.2 J per cm2 of
ultraviolet A (UVA) light inactivated 4 to 6 log10 of several model
viruses in platelet suspensions. This inactivation was achieved while
satisfactory levels of platelet count, pH, morphology, aggregation, and
hemostatic effectiveness were maintained. STUDY DESIGN AND METHODS: The
efficacy of this procedure for inactivating free and intracellular human
immunodeficiency virus (HIV), including integrated proviral sequences,
was studied. RESULTS: The kinetics of inactivation for free HIV (4-5
log10 kill with 1.2-4.8 J/cm2) were similar to those obtained for the
previously studied viruses. For studies on cell-associated virus, H9
cells productively infected with HIV were added to platelet suspensions
and treated with the above regimen of AMT and UVA. The phototreated
cells were then cocultivated with uninfected H9 cells for 4 weeks and
supernatants were assayed by enzyme-linked immunosorbent assay for HIV
p24. No evidence of HIV replication was detectable for cells receiving
as little as 2.4 J per cm2 of UVA irradiation in the presence of AMT.
Further, it has been demonstrated that stably integrated sequences from
the HIV proviral env gene can no longer be amplified by polymerase chain
reaction after 1.2 J per cm2 of UVA (with 40 micrograms/mL AMT)
exposure. CONCLUSION: These data suggest that AMT and UVA is an
effective antiviral treatment for free and cell-associated HIV in
platelet suspensions.
DE Base Sequence Blood Platelets/*MICROBIOLOGY DNA, Viral/DRUG
EFFECTS/RADIATION EFFECTS Human HIV/*DRUG EFFECTS/*RADIATION EFFECTS
Molecular Sequence Data Photochemistry Polymerase Chain Reaction
Proviruses/DRUG EFFECTS/RADIATION EFFECTS Sindbis Virus/DRUG
EFFECTS/RADIATION EFFECTS Trioxsalen/*ANALOGS &
DERIVATIVES/PHARMACOLOGY *Ultraviolet Rays Vesicular
Stomatitis-Indiana Virus/DRUG EFFECTS/RADIATION EFFECTS JOURNAL ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).