In conclusion, we found a neighbor of NOTCH1, Lnc-RP11-611D20.2 (named NOTCH1 Associated Long non-coding RNA in pediatric T ALL, NALT), a long non-coding RNA of 546nt length located in the upstream of NOTCH1 within a spacing of 10 kb. This evidence concerns the gene NOTCH1 and acute lymphoblastic leukemia.