Abstract:
:Human choriocarcinoma cells of the JAR line, with no demonstrable surface CD4 receptor were infected with human immunodeficiency virus type 1 (HIV-1), strain RF. Primer-directed enzymatic DNA amplification (polymerase chain reaction, PCR) detected the presence of viral DNA when the cultures were investigated at day 5 post-infection (p.i.). The absence of cytopathic changes attributable to virus replication suggested silent infection of these malignant trophoblastic cells. Neither reverse transcriptase (RT) activity nor HIV-specific antigens were found in the culture nutrient medium during JAR cell propagation. However, when the HIV-carrier JAR cells were continuously cultured and the cocultivation was initiated with CEM-SS lymphoblastoid cells after two subsequent passages, rescue of infectious virus was observed.
journal_name
Acta Viroljournal_title
Acta virologicaauthors
Zachar V,Ebbesen Psubject
Has Abstractpub_date
1991-09-01 00:00:00pages
464-8issue
5eissn
0001-723Xissn
1336-2305journal_volume
35pub_type
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