Figure 2.

Kaplan–Meier survival analyses for GDF-15 expression on overall survival (OS) in several cancers. The RNA-seq data were collected from several databases, including GEO, EGA, and TCGA. The Kaplan–Meier survival analysis (overall survival) was analyzed by the KM plotter website and software (https://kmplot.com/analysis/).²⁷¹Kaplan–Meier survival analyses showed that high expression of GDF-15 is a poor prognostic factor in head-neck squamous cell carcinoma, kidney renal papillary cell carcinoma, and liver hepatocellular carcinoma. (A color version of this figure is available in the online journal.)