Suppressing Kaposi’s Sarcoma-Associated Herpesvirus Lytic Gene Expression and Replication by RNase P Ribozyme

Kaposi’s sarcoma, an AIDS-defining illness, is caused by Kaposi’s sarcoma-associated herpesvirus (KSHV), an oncogenic virus. In this study, we engineered ribozymes derived from ribonuclease P (RNase P) catalytic RNA with targeting against the mRNA encoding KSHV immediate early replication and transc...

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Main Authors: Yujun Liu, Yuan-Chuan Chen, Bin Yan, Fenyong Liu
Format: Article
Language:English
Published: MDPI AG 2023-04-01
Series:Molecules
Subjects:
Online Access:https://www.mdpi.com/1420-3049/28/8/3619
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author Yujun Liu
Yuan-Chuan Chen
Bin Yan
Fenyong Liu
author_facet Yujun Liu
Yuan-Chuan Chen
Bin Yan
Fenyong Liu
author_sort Yujun Liu
collection DOAJ
description Kaposi’s sarcoma, an AIDS-defining illness, is caused by Kaposi’s sarcoma-associated herpesvirus (KSHV), an oncogenic virus. In this study, we engineered ribozymes derived from ribonuclease P (RNase P) catalytic RNA with targeting against the mRNA encoding KSHV immediate early replication and transcription activator (RTA), which is vital for KSHV gene expression. The functional ribozyme F-RTA efficiently sliced the RTA mRNA sequence in vitro. In cells, KSHV production was suppressed with ribozyme F-RTA expression by 250-fold, and RTA expression was suppressed by 92–94%. In contrast, expression of control ribozymes hardly affected RTA expression or viral production. Further studies revealed both overall KSHV early and late gene expression and viral growth decreased because of F-RTA-facilitated suppression of RTA expression. Our results indicate the first instance of RNase P ribozymes having potential for use in anti-KSHV therapy.
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spelling doaj.art-6ae5b7db7dc84c65b66c51d4a75cf1a22023-11-17T20:41:35ZengMDPI AGMolecules1420-30492023-04-01288361910.3390/molecules28083619Suppressing Kaposi’s Sarcoma-Associated Herpesvirus Lytic Gene Expression and Replication by RNase P RibozymeYujun Liu0Yuan-Chuan Chen1Bin Yan2Fenyong Liu3School of Public Health, University of California, Berkeley, CA 94720, USAProgram in Comparative Biochemistry, University of California, Berkeley, CA 94720, USASchool of Public Health, University of California, Berkeley, CA 94720, USASchool of Public Health, University of California, Berkeley, CA 94720, USAKaposi’s sarcoma, an AIDS-defining illness, is caused by Kaposi’s sarcoma-associated herpesvirus (KSHV), an oncogenic virus. In this study, we engineered ribozymes derived from ribonuclease P (RNase P) catalytic RNA with targeting against the mRNA encoding KSHV immediate early replication and transcription activator (RTA), which is vital for KSHV gene expression. The functional ribozyme F-RTA efficiently sliced the RTA mRNA sequence in vitro. In cells, KSHV production was suppressed with ribozyme F-RTA expression by 250-fold, and RTA expression was suppressed by 92–94%. In contrast, expression of control ribozymes hardly affected RTA expression or viral production. Further studies revealed both overall KSHV early and late gene expression and viral growth decreased because of F-RTA-facilitated suppression of RTA expression. Our results indicate the first instance of RNase P ribozymes having potential for use in anti-KSHV therapy.https://www.mdpi.com/1420-3049/28/8/3619Kaposi sarcoma-associated herpesvirusherpesvirusantiviralgene therapyRNase Pribozyme
spellingShingle Yujun Liu
Yuan-Chuan Chen
Bin Yan
Fenyong Liu
Suppressing Kaposi’s Sarcoma-Associated Herpesvirus Lytic Gene Expression and Replication by RNase P Ribozyme
Molecules
Kaposi sarcoma-associated herpesvirus
herpesvirus
antiviral
gene therapy
RNase P
ribozyme
title Suppressing Kaposi’s Sarcoma-Associated Herpesvirus Lytic Gene Expression and Replication by RNase P Ribozyme
title_full Suppressing Kaposi’s Sarcoma-Associated Herpesvirus Lytic Gene Expression and Replication by RNase P Ribozyme
title_fullStr Suppressing Kaposi’s Sarcoma-Associated Herpesvirus Lytic Gene Expression and Replication by RNase P Ribozyme
title_full_unstemmed Suppressing Kaposi’s Sarcoma-Associated Herpesvirus Lytic Gene Expression and Replication by RNase P Ribozyme
title_short Suppressing Kaposi’s Sarcoma-Associated Herpesvirus Lytic Gene Expression and Replication by RNase P Ribozyme
title_sort suppressing kaposi s sarcoma associated herpesvirus lytic gene expression and replication by rnase p ribozyme
topic Kaposi sarcoma-associated herpesvirus
herpesvirus
antiviral
gene therapy
RNase P
ribozyme
url https://www.mdpi.com/1420-3049/28/8/3619
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AT binyan suppressingkaposissarcomaassociatedherpesviruslyticgeneexpressionandreplicationbyrnasepribozyme
AT fenyongliu suppressingkaposissarcomaassociatedherpesviruslyticgeneexpressionandreplicationbyrnasepribozyme