Mining a Cathepsin Inhibitor Library for New Antiparasitic Drug Leads
2011

Searching for New Antiparasitic Drugs

Sample size: 2100 publication 10 minutes Evidence: moderate

Author Information

Author(s): Ang Kenny K. H., Ratnam Joseline, Gut Jiri, Legac Jennifer, Hansell Elizabeth, Mackey Zachary B., Skrzypczynska Katarzyna M., Debnath Anjan, Engel Juan C., Rosenthal Philip J., McKerrow James H., Arkin Michelle R., Renslo Adam R.

Primary Institution: University of California San Francisco

Hypothesis

Can existing cathepsin inhibitors be repurposed to target tropical parasites?

Conclusion

The study identified several promising compounds that inhibit the growth of tropical parasites and could serve as starting points for new drug development.

Supporting Evidence

  • Compounds were screened against five parasite cysteine proteases.
  • Active compounds were further tested against cultured Plasmodium falciparum and Trypanosoma species.
  • Sub-micromolar cell-active leads were identified.
  • Structure-activity trends were elucidated to guide optimization efforts.

Takeaway

Researchers looked through a big library of drugs to find ones that could help fight diseases caused by tropical parasites, and they found some good candidates.

Methodology

The study involved screening a library of cathepsin inhibitors against various parasite cysteine proteases and evaluating their effects on cultured parasites.

Limitations

The study primarily focused on in vitro assays, and the effectiveness of the compounds in vivo remains to be established.

Digital Object Identifier (DOI)

10.1371/journal.pntd.0001023

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