6TH INTERNATIONAL ISTANBUL CURRENT SCIENTIFIC RESEARCH CONGRESS
OVARIAN CANCER AND KALLIKREIN PROTEINS
Yayıncı:
Liberty Publications
Ovarian cancer is a type of cancer that develops due to uncontrolled growth and division of abnormal cells in the ovaries. Ovarian cancer is among the top three gynecological cancers in terms of prevalence gynecological cancer worldwide and has the highest mortality rate among gynecological cancers. Ovarian cancer can affect women of all ages, but it is usually diagnosed after menopause. Approximately 70% of ovarian cancers are diagnosed at an advanced stage, and only 30% of patients diagnosed at this stage survive for 5 years. The reason for this is that ovarian cancer is asymptomatic in the early stages, and the symptoms that appear in the advanced stage are nonspecific.Currently, ovarian cancer is diagnosed by pelvic examination, transvaginal ultrasound, and the use of serum biomarkers obtained through liquid biopsy. The biomarkers that are believed to be associated with ovarian cancer include CA125, HE4, CA19-9, Osteopontin, VEGF, and Kallikrein (KLK) proteins. Human tissue KLKs, encoded by the largest protease gene cluster in the human genome, are serine proteases with various expression patterns and physiological roles. It has been observed that KLKs are expressed in many tissues, including steroid hormone-producing or hormone-dependent tissues such as ovaries, breast, prostate, and testis. There are some researches stating that KLK-dependent peptidases have a significant impact on cancer biogenesis, including tumor growth, cell migration, invasion, and chemoresistance. Studies have revealed that elevated serum levels of KLK5, KLK6, and KLK10 are characterized by negative prognosis in epithelial ovarian cancer patients, suggesting that these KLKs could potentially be used as biomarkers for malignancy.