Ekspresi CD44 (Penanda Sel Punca Kanker) sebagai Faktor Prognostik Kekambuhan pada Kanker Ovarium Tipe Epitel Stadium III

Abstract

Epithelial ovarian cancer is a deadly cancer, cancer recurrence and resistance post surgical staging and chemotherapy are major problems which will eventually occur in most advanced stage ovarian cancer. Recent investigations have unravelled the role of CSC/ Cancer Stem Cell in the cancer recurrence and therapy resistance, CD44 has been reported as a CSC marker in ovarian cancer, investigator wanted to analyse CD44 expression as recurrence prognostic factor in stage III epithelial ovarian cancer. Purpose: to analyse the role of CD44 expression as recurrence prognostic factor in stage III epithelial ovarian cancer. Metode: Hystorical Cohort, ICH CD44 examination was performed on the pathological ovarian cancer sample which diagnosed with platinum resistant recurrence (study sample) and platinum sensitive recurrence (control sample). CD44 expression was measured, the role as recurrence prognostic factor evaluated, influence of CD44 expression increasetowards earlier recurrence analysed, and the CD44 expression differences between 2 groups based on grade; pathological type; and stadium were measured and analysed. Results: 40 research subjects were involved in the research, with 20 among them were platinum resistant and the other 20 were platinum sensitive. Mean CD44 expression in the platinum resistant group was 36,80+29,54; while in the resistant platinum was 7,05+9,58. There was a significant difference of CD44 expression between 2 groups (p=0,000). There was a strong correlation between CD44 expression with the timing of recurrence (p=0,894). With the cut off of12,5; 85% platinum resistant subject had CD44>12,5; 85% platinum sensitive subject had CD44<12,5; with 85% sensitivity and 85% specificity as a good recurrence prognostic factor. Relative Risk (RR) of CD44 Expression is 5,667, RRof tumor residue post surgical staging is 2,513. Through logistic regression analysis, it was concluded that high expression of CD44 and tumor residue are risk factors for recurrences, patient with CD44 expression of ≥ 12,50 has possibility of earlier recurrence (< 6 months) 48,487 times compared with patient with CD44 expression of < 12,50 and patient with tumor residue of < 1cm has possibility of earlier recurrence 13,013 times compared with patient without macroscopic residue.Conclusion: This research found that CD44 expression can be used as recurrence prognostic factor in stage III epithelial ovarian cancer, CD44 expression was significantly higher in the platinum resistant group, there was negative correlationbetween CD44 expression with the timing of recurrence. CD44 expression as recurrence prognostic factor was not influenced with grade and pathologic type, but influenced by stage. Expression of CD44 and tumor residue post surgical staging are good predictors for recurrence timing