RESUMO
There is a need for additional biomarkers for the diagnosis and prognosis of prostate cancer. MicroRNAs are a class of non-protein coding RNA molecules that are frequently dysregulated in different cancers including prostate cancer and show promise as diagnostic biomarkers and targets for therapy. Here we describe the role of micro RNA 146 a (miR-146a) which may serve as a diagnostic marker for prostate cancer, as indicated from the data presented in this report. Also, a pilot study indicated differential expression of miR-146a in prostate cancer cell lines and tissues from different racial groups. This report provides a novel insight into understanding the prostate carcinogenesis.
RESUMO
Prostate cancer is a serious disease in terms of its high incidence and mortality rate in the USA and around the world. The prostate specific antigen (PSA) has been used for prostate cancer diagnosis and follow-up of treatment but a number of challenges remain. Epigenetic biomarkers, especially methylation and microRNA (miR) biomarkers provide an opportunity for diagnosis, prognosis, and recurrence of prostate cancer. Differential global methylation has shown some promising results. In this chapter, the emphasis is given on those biomarkers which can be assayed noninvasively in a prospective study and in a clinic. Challenges in the field, especially the validation of potential biomarkers, and their potential solutions are provided in this chapter.
