{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,18]],"date-time":"2026-08-18T05:15:35Z","timestamp":1787030135825,"version":"build-2736575974"},"reference-count":98,"publisher":"MDPI AG","issue":"11","license":[{"start":{"date-parts":[[2024,11,12]],"date-time":"2024-11-12T00:00:00Z","timestamp":1731369600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Viruses"],"abstract":"<jats:p>Alphaviruses are known for being model viruses for studying cellular functions related to viral infections but also for causing epidemics in different parts of the world. More recently, alphavirus-based expression systems have demonstrated efficacy as vaccines against infectious diseases and as therapeutic applications for different cancers. Point mutations in the non-structural alphaviral replicase genes have generated enhanced transgene expression and created temperature-sensitive expression vectors. The recently engineered trans-amplifying RNA system can provide higher translational efficiency and eliminate interference with cellular translation. The self-replicating feature of alphaviruses has provided the advantage of extremely high transgene expression of vaccine-related antigens and therapeutic anti-tumor and immunostimulatory genes, which has also permitted significantly reduced doses for prophylactic and therapeutic applications, potentially reducing adverse events. Furthermore, alphaviruses have shown favorable flexibility as they can be delivered as recombinant viral particles, RNA replicons, or DNA-replicon-based plasmids. In the context of infectious diseases, robust immune responses against the surface proteins of target agents have been observed along with protection against challenges with lethal doses of infectious agents in rodents and primates. Similarly, the expression of anti-tumor genes and immunostimulatory genes from alphavirus vectors has provided tumor growth inhibition, tumor regression, and cures in animal cancer models. Moreover, protection against tumor challenges has been observed. In clinical settings, patient benefits have been reported. Alphaviruses have also been considered for the treatment of neurological disorders due to their neurotrophic preference.<\/jats:p>","DOI":"10.3390\/v16111762","type":"journal-article","created":{"date-parts":[[2024,11,12]],"date-time":"2024-11-12T05:21:59Z","timestamp":1731388919000},"page":"1762","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":6,"title":["Self-Replicating Alphaviruses: From Pathogens to Therapeutic Agents"],"prefix":"10.3390","volume":"16","author":[{"given":"Kenneth","family":"Lundstrom","sequence":"first","affiliation":[{"name":"PanTherapeutics, CH1095 Lutry, Switzerland"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2024,11,12]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"491","DOI":"10.1128\/mr.58.3.491-562.1994","article-title":"The alphaviruses: Gene expression, replication and evolution","volume":"58","author":"Strauss","year":"1994","journal-title":"Microbiol. 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