Key result
Ribozymes targeting PSMA7 and MG132 inhibit HCV IRES translation, suggesting a principal regulatory role.
Why the study?
The role of proteasome alpha-subunit PSMA7 in regulating HCV internal ribosome entry site-mediated translation was unclear.
Population
HeLa reporter cells and Huh7 cells
Comparison
Hairpin ribozyme Rz3'X, additional ribozymes against PSMA7 RNA, and proteasome inhibitor MG132 vs control vector-transduced cells
Design
Preclinical experimental study
Authors
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Ribozyme targeting HCV minus-strand replication may offer antiviral potential; leaves open clinical translation pending in vivo and delivery studies.
PSMA7 plays a principal role in regulating HCV IRES activity, which is essential for HCV replication.
Krüger et al. (2001) studied Hepatitis C virus (HCV) infection. Ribozymes directed against PSMA7 RNA and proteasome inhibitor MG132 vs. Control vector-transduced cells was evaluated on HCV IRES-mediated translation. Ribozymes targeting PSMA7 RNA and the proteasome inhibitor MG132 inhibited HCV IRES-mediated translation, suggesting a principal role for PSMA7 in regulating HCV IRES activity.
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