Journal: Cell reports
Article Title: CGRP signaling links tumor-associated pain to immune evasion in oral squamous cell carcinoma
doi: 10.1016/j.celrep.2026.116994
Figure Lengend Snippet: (A and B) Representative images of OSCC tumor serial sections stained with either anti-Tubb3 (top, green outline), anti-TRPV1 (middle, red outline), or anti-CGRP (bottom, blue outline) from a patient with (A) and without (B) CGRPα + nerve innervation. Positive stains are indicated by red (TRPV1) or blue (CGRP) arrows. Tumor margins are indicated by a gray dashed line. Image magnification: 6× (left) and 40× (right). Scale bar: 200 μm. (C) Quantification of the percentage of total TRPV1 and CGRP-IR nerve area relative to total Tubb3-IR nerve area across tumor tissue sections from 23 patients with HNSCC. Density is reported as a stacked bar graph. (D) Quantification of the percentage of total CD8 T cell density per square millimeter. (E) Representative images of OSCC tumor serial sections with either a large nerve bundle and low anti-CD8 or small nerve presence and high anti-CD8 immunoreactivity. Scale bar: 150 μm. (F and G) Simple linear regressions were run between patient-reported pain, percentage of total CGRP-IR nerve area relative to total Tubb3-IR, and CD8 + T cell density relative to tumor area. Pain was measured by the FACT-HN additional question 12, “I have pain in my mouth, throat or neck” (FACT-HN10). The response to this question is rated on a scale of 0 (not at all) to 4 (very much). Spearman correlation r coefficients are listed on each graph; p < 0.05. Patient demographics are located in .
Article Snippet: Slides were incubated overnight in PBS +/+ containing 1% bovine serum albumin and 0.1% Tween 20 and one of the following primary antibodies: Rabbit anti-CGRP (1:500, Cell Signaling Technologies), Rabbit anti-TRPV1 (1:500, Alomone Labs), Guinea pig anti-TRPV1 (1:500, Millipore).
Techniques: Staining
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