Kadar Interleukin-6 Serum pada Karsinoma Payudara Lanjut Lokal dan yang Bermetastasis

Breast carcinoma is a cancer in women with the highest frequency in the world and is the leading cause of death. Patients with breast carcinoma experience periods of stress both physical and emotional which encourages them to produce proteins such as interleukin-6 (IL-6). Interleukin-6 plays an important role in tumorigenesis via activation of janus activated kinase (JAK). This study measured the levels of serum IL-6 which plays an important role in the molecular pathogenesis of metastasis in locally advanced breast cancer (LABC) compared to metastatic breast cancer (MBC). The study design was cross-sectional, comparative analytics by comparing the mean levels of IL-6 in both groups: LABC and MBC. The study was conducted at the Dr. Hasan Sadikin Hospital Bandung (RSHS) from June–November 2012. Subjects were 35 women consisting of 18 LABC and 17 MBC. Levels of serum IL-6 were measured by enzyme-linked immunosorbent assay (ELISA) technique. The results of this study show that the mean levels of serum IL-6 on LABC 4.99 pg/mL and the mean levels of serum IL-6 on MBC 32.73 pg/mL. There was a significant difference between the levels of serum IL-6 on LABC and MBC, p9.85 pg/mL had 37,5 times higher risk for incidence of metastasis. In conclusion, the levels of serum IL-6 on MBCare higher than LABC.