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Updated: Jun 4, 2026

Purification of Endogenous Drosophila Transient Receptor Potential Channels
Published on: December 28, 2021
TRP channels in parasites
Adrian J Wolstenholme1, Sally M Williamson, Barbara J Reaves
1Department of Infectious Diseases, University of Georgia, Athens, GA 30602, USA. adrianw@uga.edu
Abstract:
A wide range of single- and multi-cellular parasites infect humans and other animals, causing some of the most prevalent and debilitating diseases on the planet. There have been virtually no published studies on the TRP channels of this diverse group of organisms. However, since many parasite genomes have been sequenced, it is simple to demonstrate that they are present in all parasitic metazoans and that sequences related to the yeast trp are present in many protozoans, including all the kinetoplastids. We compared the TRP genes of three species of animal and plant parasitic nematode to those of C. elegans and found that the parasitic species all had fewer such genes. These differences may reflect the phylogenetic distance between the species studied, or may be due to loss of specific gene functions following the evolution of the parasitic lifestyle. Other helminth groups, the trematodes and cestodes, seem to possess many TRPC and TRPM genes, but lack TRPV and TRPN. Most ectoparasites are insects or arachnids. We compared the TRP genes of a plant parasitic aphid and an animal parasite louse and tick with those of Drosophila. Again, all the parasitic species seemed to have fewer types of TRP channel, though the difference was less marked than for the nematodes. The aphid lacks TRPP and TRPML channel genes, whereas the tick lacked those encoding TRPVs. Again, these differences may reflect adaptation to parasitism, and could enable TRP channels to be targeted in the development of novel antiparasitic drugs.
Insights
Transient Receptor Potential (TRP) channels are present in parasites, but parasitic species often have fewer TRP gene types. This reduction may be an adaptation to parasitism and offers potential drug targets.
Area of Science:
- Molecular Biology
- Parasitology
- Genomics
Background:
- Parasitic infections pose significant global health challenges.
- Transient Receptor Potential (TRP) channels are crucial in various biological processes.
- Limited research exists on TRP channels in parasitic organisms.
Purpose of the Study:
- To investigate the presence and diversity of TRP channel genes in various parasitic organisms.
- To explore potential evolutionary adaptations of TRP channels related to parasitic lifestyles.
- To identify potential targets for novel antiparasitic drug development.
Main Methods:
- Comparative genomic analysis of TRP channel genes across different parasitic species (nematodes, helminths, insects, arachnids) and their non-parasitic relatives.
- Identification and comparison of TRP gene families, including TRPC, TRPM, TRPV, TRPN, TRPP, and TRPML.
Main Results:
- TRP channel genes are present in parasitic metazoans and protozoans.
- Parasitic nematodes, helminths, aphids, lice, and ticks generally possess fewer types of TRP channel genes compared to their non-parasitic counterparts.
- Specific TRP channel families (e.g., TRPV, TRPN, TRPP, TRPML) show differential presence/absence across parasitic groups, suggesting adaptive loss.
Conclusions:
- The observed reduction in TRP channel gene repertoire in parasites may represent an adaptation to their specific lifestyle.
- TRP channels in parasites are potential targets for the development of new antiparasitic therapies.
- Further research into parasite TRP channel functions could yield novel therapeutic strategies.
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