Mode_of_action

Mode of action

Mode of action

Functional/anatomical change at cellular level due to a substance


In pharmacology and biochemistry, mode of action (MoA) describes a functional or anatomical change, resulting from the exposure of a living organism to a substance.[1] In comparison, a mechanism of action (MOA) describes such changes at the molecular level.[2][1]

A mode of action is important in classifying chemicals, as it represents an intermediate level of complexity in between molecular mechanisms and physiological outcomes, especially when the exact molecular target has not yet been elucidated or is subject to debate. A mechanism of action of a chemical could be "binding to DNA" while its broader mode of action would be "transcriptional regulation".[3] However, there is no clear consensus and the term mode of action is also often used, especially in the study of pesticides, to describe molecular mechanisms such as action on specific nuclear receptors or enzymes.[4][5][6][7][8][9][10]

See also


References

  1. Grant RL, Combs AB, Acosta D (2010). "Experimental Models for the Investigation of Toxicological Mechanisms". In McQueen CA (ed.). Comprehensive Toxicology (2nd ed.). Oxford: Elsevier. p. 204. ISBN 978-0-08-046884-6.
  2. "Mechanisms and mode of dioxin action" (PDF). US EPA. Archived from the original (PDF) on 26 February 2015. Retrieved 11 June 2012.
  3. Ng, Wai-Leung; Krystyna M. Kazmierczak; Gregory T. Robertson; Raymond Gilmour; Malcolm E. Winkler (Jan 2003). "Transcriptional Regulation and Signature Patterns Revealed by Microarray Analyses of Streptococcus Pneumoniae R6 Challenged with Sublethal Concentrations of Translation Inhibitors". Journal of Bacteriology. 185 (1): 359–70. doi:10.1128/JB.185.1.359-370.2003. PMC 141824. PMID 12486074.
  4. "Herbicide Group Classification by Mode of Action". Alberta Agriculture and Rural Development. Archived from the original on 2019-01-23. Retrieved 11 June 2012.
  5. Heap, Ian. "HERBICIDE MODE OF ACTION TABLE". Archived from the original on 2022-07-05. Retrieved 2021-04-02.
  6. "Interactive MoA Classification". Insecticide Resistance Action Committee. 2020-09-16. Archived from the original on 2022-08-08. Retrieved 2021-04-01.

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