As an example, the PTENP1 pseudogene functions as a ceRNA for its oncosuppressive parental gene PTEN (see below), and in clear cell renal cell carcinoma it has been shown that patients who do not express PTENP1 display a shorter overall survival compared to those that do express PTENP1 (30). The gene discussed is PTENP1; the disease is clear cell renal carcinoma.