Synthetic virology

Synthetic virology is a branch of virology engaged in the study and engineering of synthetic man-made viruses. It is a multidisciplinary research field at the intersection of virology, synthetic biology, computational biology, and DNA nanotechnology, from which it borrows and integrates its concepts and methodologies. There is a wide range of applications for synthetic viral technology such as medical treatments, investigative tools, and reviving organisms.[1]

Constructing de novo synthetic viruses

Advances in genome sequencing technology [2] and oligonucleotide synthesis paved the way for construction of synthetic genomes based on previously sequenced genomes. Both RNA and DNA viruses can be made using existing methods. RNA viruses have historically been utilized due to the typically small genome size and existing reverse transcription machinery present.[3] The first man-made infectious viruses generated without any natural template were of the polio virus and the φX174 bacteriophage. With synthetic live viruses, it is not whole viruses that are synthesized but rather their genome at first, both in the case of DNA and RNA viruses. For many viruses, viral RNA is infectious when introduced into a cell (during infection or after reverse transcription). These organisms are able to sustain an infectious life cycle upon introduction in vivo.

Applications

This technology is now being used to investigate novel vaccine strategies.[4] The ability to synthesize viruses has far-reaching consequences, since viruses can no longer be regarded as extinct, as long as the information of their genome sequence is known and permissive cells are available. As of March 2020, the full-length genome sequences of 9,240 different viruses, including the smallpox virus, are publicly available in an online database maintained by the National Institutes of Health. Synthetic viruses have also been researched as potential gene therapy tools.[5]

See also

References

  1. ↑ Cello, Jeronimo; Paul, Aniko V.; Wimmer, Eckard (2002-08-09). "Chemical Synthesis of Poliovirus cDNA: Generation of Infectious Virus in the Absence of Natural Template". Science. 297 (5583): 1016–1018. Bibcode:2002Sci...297.1016C. doi:10.1126/science.1072266. ISSN 0036-8075. PMID 12114528. S2CID 5810309.
  2. ↑ Heather, James M.; Chain, Benjamin (January 2016). "The sequence of sequencers: The history of sequencing DNA". Genomics. 107 (1): 1–8. doi:10.1016/j.ygeno.2015.11.003. ISSN 0888-7543. PMC 4727787. PMID 26554401.
  3. ↑ Stauft, Charles B; Wimmer, Eckard (2018-02-16), "Synthetic Viruses", eLS, John Wiley & Sons, Ltd, pp. 1–7, doi:10.1002/9780470015902.a0027771, ISBN 9780470015902
  4. ↑ Wimmer, Eckard; Mueller, Steffen; Tumpey, Terrence M; Taubenberger, Jeffery K (December 2009). "Synthetic viruses: a new opportunity to understand and prevent viral disease". Nature Biotechnology. 27 (12): 1163–72. doi:10.1038/nbt.1593. ISSN 1087-0156. PMC 2819212. PMID 20010599.
  5. ↑ Guenther, Caitlin M.; Kuypers, Brianna E.; Lam, Michael T.; Robinson, Tawana M.; Zhao, Julia; Suh, Junghae (November 2014). "Synthetic Virology: Engineering Viruses for Gene Delivery". Wiley Interdisciplinary Reviews: Nanomedicine and Nanobiotechnology. 6 (6): 548–558. doi:10.1002/wnan.1287. ISSN 1939-5116. PMC 4227300. PMID 25195922.


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