Furthermore, the miR-205 utterance in serum exosomes of people with prostate carcinoma was significantly negatively connected with tumor stage, uncontrolled cell division in lymph node, distant metastasis, and PSA level at initial diagnosis in prostate cancer patients and could be used as a sovereign risk aspect for prognosis in people with prostate carcinoma. This evidence concerns the gene KLK3 and prostate carcinoma.