Journal: Molecular Oncology
Article Title: TRPM8 levels determine tumor vulnerability to channel agonists
doi: 10.1002/1878-0261.70049
Figure Lengend Snippet: TRPM8 RNA and protein expression in solid cancers. (A) Landscape of TRPM8 transcript levels in primary tumor samples across different tissues (horizontal axis) was retrieved from The Cancer Genome Atlas (TCGA) datasets of cBioPortal. Panel display boxplots illustrating data distributions; boxes represent the median and interquartile range, while whiskers indicate variability beyond the quartiles, with individual data points shown above the plots. (B) Representative images of TRPM8 immunolocalization in healthy and malignant prostate, colorectal, breast, and lung tissue samples spotted on a commercial tissue microarray (TMA). TRPM8 immunostaining was scored as absent (0), weak (1), moderate (2) or high (3) (scale bar 20 μm). (C) TRPM8 score related to tumor stage ( n = 48 cores per cancer type; n = 4 cores per normal tissue type). (D) Direct comparison of TRPM8 RNA expression across prostate, colorectal, breast, and lung cancers. Panel display boxplots illustrating data distributions; boxes represent the median and interquartile range, while whiskers indicate variability beyond the quartiles, with individual data points shown above the plots. (E, F) Quantification of TRPM8 RNA expression and protein amount in matched normal prostate tissue (N) and prostate cancer (T) samples isolated from n = 3 radical prostatectomies of prostate cancer (PCa) patients (E), and n = 5 independent colorectal cancer (CRC) samples (F). (G) Western blot of TRPM8 protein in the samples described in (E, F).
Article Snippet: To analyze the status of the TRPM8 channel in a group of solid tumors other than prostate cancer, a Tissue Microarray was purchased from US Biomax, Inc. (MC2081a) and stained with a validated antibody against TRPM8 (Alomone #ACC‐049; [ , , ]) at the Anatomic Pathology Operative Unit of the Santa Chiara Hospital of Trento.
Techniques: Expressing, Microarray, Immunostaining, Comparison, RNA Expression, Isolation, Western Blot