4.5 Review

The chemistry of snake venom and its medicinal potential

Journal

NATURE REVIEWS CHEMISTRY
Volume 6, Issue 7, Pages 451-469

Publisher

NATURE PORTFOLIO
DOI: 10.1038/s41570-022-00393-7

Keywords

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Funding

  1. FCT/MCTES -the Portuguese Foundation for Science and Technology [PTDC/QUI-OUT/1401/2020]
  2. Associate Laboratory for Green Chemistry (LAQV) - FCT/MCTES [UIDB/50006/2020]
  3. FCT/MCTES [SFRH/BD/119206/2016]
  4. technological platforms network of the Oswaldo Cruz Foundation (FIOCRUZ)
  5. Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq)
  6. Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior (CAPES)
  7. Fundacao de Amparo a Pesquisa do Estado de Rondonia (FAPERO)
  8. Instituto Nacional de Ciencia e Tecnologia em Epidemiologia da Amazonia Ocidental (INCT-EpiAmO) from Brazil
  9. Fundação para a Ciência e a Tecnologia [PTDC/QUI-OUT/1401/2020, SFRH/BD/119206/2016] Funding Source: FCT

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This review discusses the chemistry of snake venom and its potential for medicinal purposes. It focuses on the molecular structure, chemical reactivity, and target recognition of bioactive toxins found in snake venom, and how they can be developed into bioactive drugs. The design and working mechanisms of snake-venom-derived drugs are illustrated, along with the strategies for transforming toxins into therapeutics. The challenges in realizing the curative potential of snake venom are also discussed, and chemical strategies for deriving new drugs from snake venom are proposed.
The fascination and fear of snakes dates back to time immemorial, with the first scientific treatise on snakebite envenoming, the Brooklyn Medical Papyrus, dating from ancient Egypt. Owing to their lethality, snakes have often been associated with images of perfidy, treachery and death. However, snakes did not always have such negative connotations. The curative capacity of venom has been known since antiquity, also making the snake a symbol of pharmacy and medicine. Today, there is renewed interest in pursuing snake-venom-based therapies. This Review focuses on the chemistry of snake venom and the potential for venom to be exploited for medicinal purposes in the development of drugs. The mixture of toxins that constitute snake venom is examined, focusing on the molecular structure, chemical reactivity and target recognition of the most bioactive toxins, from which bioactive drugs might be developed. The design and working mechanisms of snake-venom-derived drugs are illustrated, and the strategies by which toxins are transformed into therapeutics are analysed. Finally, the challenges in realizing the immense curative potential of snake venom are discussed, and chemical strategies by which a plethora of new drugs could be derived from snake venom are proposed.

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