%0 Journal Article %T Prognostic Value of TLE1 Gene Expression in Patients with T-cell Acute Lymphoblastic Leukemia %J Asian Pacific Journal of Cancer Prevention %I West Asia Organization for Cancer Prevention (WAOCP), APOCP's West Asia Chapter. %Z 1513-7368 %A Aref, Salah %A El-Ghonemy, Mohamed Sabry %A Atia, Doaa Mohamed %A Elbaiomy, Mohamed M %A Abdelsalam, Sherehan Adel %A Tawfik, Aya %A EL-Sebaie, Ahmed %D 2021 %\ 05/01/2021 %V 22 %N 5 %P 1653-1658 %! Prognostic Value of TLE1 Gene Expression in Patients with T-cell Acute Lymphoblastic Leukemia %K TLE1 expression %K T-ALL %K outcome %R 10.31557/APJCP.2021.22.5.1653 %X Background: Transducin-like enhancer of split 1 (TLE1( is a member of the TLE family of transcriptional co-repressors that control the transcription of a wide range of genes. The aim of this study was to evaluate the prognostic role of TLE1 gene expression in patients with T-cell acute lymphoblastic leukemia (T-ALL). Method: This study was conducted on 97 newly diagnosed T-ALL patients admitted to the Mansoura University oncology center (59 males and 38 females) with median age (33 years) in addition to 102 apparently healthy individuals served as a control group. TLE1 gene expression was measured in both patients and control groups by real time – PCR. The calculation of relative gene expression was done using the ΔΔCt method. Results: TEL1 gene expression was significantly down regulated in T-ALL cases (median 2.83) as compared to controls (median 84.65) (p < 0.001). The low TEL1 gene expression was significantly associated with CNS infiltration, non-remission and higher relapse rate (p < 0.001, 0.001 and 0.023 respectively). Likewise, Low TEL1 gene expression was significantly associated with shorter OS and DFS (P= 0.012 and 0.011 respectively). Furthermore, Low TEL1 gene expression was considered as risk predictor of relapse with OR 3.636(CI.1.422-9.295) (P =0.007); and OR 0.803(CI. 0.609-0.96) (P=0.021) and independent predictor of T-ALL patient’s outcome with OR 0.619 (CI. 0.44-0.872) (P=0.006). Conclusion: TLE1 gene expression was significantly down regulated in T-ALL cases as compared with controls. Low TLE1 expression is independent predictor of the T-ALL patient’s outcome.   %U https://journal.waocp.org/article_89619_c904b848a1b0e745bb8dc7918b931558.pdf