PMID- 36160049 OWN - NLM STAT- MEDLINE DCOM- 20231012 LR - 20240517 IS - 2667-2375 (Electronic) IS - 2667-2375 (Linking) VI - 2 IP - 9 DP - 2022 Sep 19 TI - A chemical method for generating live-attenuated, replication-defective DNA viruses for vaccine development. PG - 100287 LID - 10.1016/j.crmeth.2022.100287 [doi] LID - 100287 AB - The development of a chemically attenuated, replication-incompetent virus vaccine can provide protection against diseases caused by DNA viruses. In this study, we have developed a method to produce live-attenuated, replication-defective viruses using centanamycin (CM), a chemical compound that alkylates the A-T-rich minor groove of the DNA and thereby blocks DNA replication. We tested the efficacy of CM to produce live-attenuated, replication-defective human cytomegalovirus, mouse cytomegalovirus, and herpes simplex virus-2 (HSV-2), suggesting a broad application for generating live-attenuated, replication-defective DNA viruses. Mass spectrometry analysis showed that CM alkylate viral DNA at the adenine-N3 position. Moreover, mice immunization with CM-attenuated mouse cytomegalovirus (MCMV) produced a robust immune response and reduced the viral load in immunized animals against challenges with live, wild-type MCMV. Our study offers a unifying and attractive therapeutic opportunity that chemically attenuated live DNA viruses can be readily developed as new frontline vaccines. FAU - Jaijyan, Dabbu Kumar AU - Jaijyan DK AD - Department of Microbiology, Biochemistry and Molecular Genetics, Rutgers - New Jersey Medical School, 225 Warren Street, Newark, NJ 07103, USA. FAU - Govindasamy, Kavitha AU - Govindasamy K AD - New Jersey Center for Science, Technology and Mathematics, Kean University, Union, NJ, USA. FAU - Lee, Moses AU - Lee M AD - Department of Chemistry, Georgia State University, Atlanta, GA, USA. FAU - Zhu, Hua AU - Zhu H AD - Department of Microbiology, Biochemistry and Molecular Genetics, Rutgers - New Jersey Medical School, 225 Warren Street, Newark, NJ 07103, USA. LA - eng GR - U01 HL150852/HL/NHLBI NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't DEP - 20220908 PL - United States TA - Cell Rep Methods JT - Cell reports methods JID - 9918227360606676 RN - 9007-49-2 (DNA) MH - Animals MH - Mice MH - Humans MH - *Herpesvirus 2, Human/genetics MH - *Immunization MH - Vaccination MH - DNA MH - Vaccine Development PMC - PMC9499982 OTO - NOTNLM OT - CM OT - DNA viruses OT - centanamycin OT - cytomegalovirus OT - herpes simplex virus OT - inactivated viruses OT - live-attenuated viruses OT - vaccines COIS- United States and worldwide patents have been filed based on the research findings in this paper. EDAT- 2022/09/27 06:00 MHDA- 2022/09/27 06:01 PMCR- 2022/09/08 CRDT- 2022/09/26 17:44 PHST- 2022/01/26 00:00 [received] PHST- 2022/06/22 00:00 [revised] PHST- 2022/08/17 00:00 [accepted] PHST- 2022/09/26 17:44 [entrez] PHST- 2022/09/27 06:00 [pubmed] PHST- 2022/09/27 06:01 [medline] PHST- 2022/09/08 00:00 [pmc-release] AID - S2667-2375(22)00169-2 [pii] AID - 100287 [pii] AID - 10.1016/j.crmeth.2022.100287 [doi] PST - epublish SO - Cell Rep Methods. 2022 Sep 8;2(9):100287. doi: 10.1016/j.crmeth.2022.100287. eCollection 2022 Sep 19.