PATZ1 is required for efficient HIV-1 infection
2019
Aziati, Ishmael Dzigbordi | Yoshida, Takeshi | Hamano, Akiko | Maeda, Kenjirō | Takeuchi, Hiroaki | Yamaoka, Shoji
Successful HIV-1 infection and subsequent replication deeply depend on how the virus usurps the host cell machinery. Identification and functional characterization of these host factors may represent a critical strategy for developing novel anti-HIV-1 therapy. Here, expression cloning with a cDNA expression library identified as an inhibitor of HIV-1 infection, a carboxy-terminally truncated form of human POZ/BTB and AT-hook- containing Zinc finger protein 1 (PATZ1), a transcriptional regulatory factor implicated in development and cancer. Knockdown or knockout of endogenous PATZ1 revealed a supportive role of PATZ1 in HIV-1 infection, but not in transduction with murine leukemia virus-based retroviral vector. More specifically, knockdown or knockout of PATZ1 impaired the viral cDNA synthesis but not the entry process and expression of two PATZ1 isoforms in PATZ1-KO cells restored susceptibility to HIV-1 infection. These results indicate that PATZ1 plays an important role in HIV-1 infection.
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