Figure 1. Transcription factors LIR-1 and PDTF-1 regulate permeability of C. elegans cuticle.: Hoechst 33258 permeability assay in (A) empty vector control (EV),
pdtf-1(T26A8.1), and
lir-1 RNAi in WT animals. Dashed line outlines the pharynx. Scale bar, 50 μm. n=3; N≥15. Kaplan Meier survival curves of (B) EV control,
pdtf-1, and
lir-1 RNAi animals against 20 mM PQ. n=3; N≥50. Percent paralyzed of EV,
lir-1, and
pdtf-1 RNAi in WT animals upon (C) 30 minutes exposure to 125 μM levamisole and, (D) 8 minutes exposure to 50 μM Ivermectin (IVM). n=3; N≥30. Real time PCR analysis of transcripts for collagens and collagen processing enzymes upon (E)
lir-1 RNAi and (F)
pdtf-1 RNAi in WT animals compared to EV control. Pcol-19::GFP expression in (G) EV,
pdtf-1, and
lir-1 RNAi animals. Areas with disruption of annuli and furrows are marked. Error bars indicates SEM. *, p≤ 0.05; **, p≤ 0.005; ***, p≤ 0.0005; ns-not significant, significance based on Student's t test and Mantel Cox test for histograms and survival curves respectively. p value for survival curves are indicated next to genotypes.