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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 
 
 

A P-glycoprotein protects Caenorhabditis elegans against natural toxins.

P-glycoproteins can cause resistance of mammalian tumor cells to chemotherapeutic drugs. They belong to an evolutionarily well-conserved family of ATP binding membrane transporters. Four P-glycoprotein gene homologs have been found in the nematode Caenorhabditis elegans; this report describes the functional analysis of two. We found that PGP-3 is expressed in both the apical membrane of the excretory cell and in the apical membrane of intestinal cells, whereas PGP-1 is expressed only in the apical membrane of the intestinal cells and the intestinal valve. By transposon-mediated deletion mutagenesis we generated nematode strains with deleted P-glycoprotein genes and found that the pgp-3 deletion mutant, but not the pgp-1 mutant, is sensitive to both colchicine and chloroquine. Our results suggest that soil nematodes have P-glycoproteins to protect themselves against toxic compounds made by plants and microbes in the rhizosphere.[1]

References

  1. A P-glycoprotein protects Caenorhabditis elegans against natural toxins. Broeks, A., Janssen, H.W., Calafat, J., Plasterk, R.H. EMBO J. (1995) [Pubmed]
 
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