Journal: The Journal of Clinical Investigation
Article Title: METTL14-mediated m6A epitranscriptomic modification contributes to chemotherapy-induced neuropathic pain by stabilizing GluN2A expression via IGF2BP2
doi: 10.1172/JCI174847
Figure Lengend Snippet: ( A ) Experimental paradigm for METTL14 expression profile analysis. ( B ) Left: Representative immunofluorescence images show colabeling of METTL14 and NeuN in the rat DRG 10 days after treatment with saline or PCX. Right: The percentage of DRG neurons colabeled by METTL14 and NeuN in the L4 and L5 DRGs 10 days after treatment with saline or PCX ( n = 9 DRGs from 3 rats per group, Student’s t test). Scale bars: 100 μm. ( C ) Representative double immunofluorescence staining and quantification showing the colocalization of METTL14 with IB4, CGRP, and NF200 in rat DRG (at least 9 DRG slices from 4 rats per group). Scale bars: 100 μm. ( D ) Representative double immunofluorescence staining and quantification showing the colocalization of METTL14 with NeuN and glutamine synthetase (GS) in human DRG ( n = 10 DRG slices per group). Scale bars: 50 μm. ( E ) Representative immunofluorescence staining and quantification showing colabeling and alteration of METTL14 and DAPI in patients ( n = 3 patients per group, Student’s t test). Scale bars: 100 μm. Data are shown as the mean ± SEM. * P < 0.05, **** P < 0.0001.
Article Snippet: All sections were blocked with PBS containing 5% goat serum at 26°C for 1 hour and then incubated overnight at 4°C with the following primary antibodies: rabbit anti-METTL14 (1:200; A8530, ABclonal), mouse anti-METTL14 (1:200; CL4252, Abcam), mouse anti-NeuN (1:100; MAB377, Millipore), goat anti-GFAP (1:300; ab53554, Abcam), mouse anti-Iba1 (1:300; ab5076, Abcam), mouse anti–glutamine synthetase (1:200; MA5-27749, Invitrogen), mouse anti-CGRP (1:200; ab81887, Abcam), mouse anti-NF200 (1:200; N0142, MilliporeSigma), mouse anti-IB4 (1:50; L2895, MilliporeSigma), rabbit anti-DBP (1:200; 12662-1-AP, Proteintech), and mouse anti-FLAG (1:1,000; 66008-4-Ig, Proteintech).
Techniques: Expressing, Immunofluorescence, Saline, Double Immunofluorescence Staining, Staining