PMID- 16213368 OWN - NLM STAT- MEDLINE DCOM- 20051125 LR - 20231213 IS - 0165-4608 (Print) IS - 0165-4608 (Linking) VI - 162 IP - 2 DP - 2005 Oct 15 TI - The presence of TEL/AML1 rearrangement and cryptic deletion of the TEL gene in adult acute lymphoblastic leukemia (ALL). PG - 176-8 AB - TEL/AML1 (also known as ETV6/RUNX1) rearrangement is the most frequent genetic change in childhood B-acute lymphoblastic leukemia (ALL) and is associated with a favorable prognosis. Its presence in adult ALL, however, has been questionable, and any association between TEL/AML1 rearrangement and clinical prognosis is unknown. To reveal the presence and incidence of the TEL/AML1 rearrangement in adult ALL, we applied fluorescence in situ hybridization (FISH). We conducted extra-signal, dual-color fluorescence in situ hybridization (ES-FISH) for TEL/AML1 rearrangement on bone marrow cells from 74 adult ALL patients and analyzed the survival time. We demonstrated the TEL/AML1 rearrangement in 2 patients (2.7%) among 74 patients with ALL. Of 74 adult ALL patients, 3 (4.0%) showed deletion of the TEL gene without TEL/AML1 rearrangement. The mean survival time of patients with TEL/AML1+ALL and patients with cryptic TEL deletion was 33 and 5 months, respectively, whereas the mean survival time of 53 TEL/AML1-ALL patients was 16.7 months. TEL/AML1 rearrangement is not unique in childhood ALL, and cryptic TEL deletion without TEL/AML1 rearrangement was more frequent than the TEL/AML1 rearrangement in adult ALL. We recommend TEL/AML1 FISH in adult ALL patients because conventional cytogenetic studies so far have yielded uninformative results. FAU - Lee, Dong Soon AU - Lee DS AD - Department of Laboratory Medicine and Cancer Research Institute, Seoul National University College of Medicine, 28 Yongun-dong, Chongro-gu, Seoul 110-744, Korea. soonlee@plaza.snu.ac.kr FAU - Kim, Young Ree AU - Kim YR FAU - Cho, Hyung Kyun AU - Cho HK FAU - Lee, Chung Kee AU - Lee CK FAU - Lee, Jee Hyung AU - Lee JH FAU - Cho, Han Ik AU - Cho HI LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - Cancer Genet Cytogenet JT - Cancer genetics and cytogenetics JID - 7909240 RN - 0 (Core Binding Factor Alpha 2 Subunit) RN - 0 (Oncogene Proteins, Fusion) RN - 0 (Proto-Oncogene Proteins c-ets) RN - 0 (Repressor Proteins) RN - 0 (TEL-AML1 fusion protein) SB - IM MH - Adult MH - Aged MH - Core Binding Factor Alpha 2 Subunit/*genetics MH - Female MH - *Gene Deletion MH - *Gene Rearrangement MH - Humans MH - In Situ Hybridization, Fluorescence MH - Male MH - Middle Aged MH - Oncogene Proteins, Fusion/*genetics MH - Precursor Cell Lymphoblastic Leukemia-Lymphoma/*genetics MH - Proto-Oncogene Proteins c-ets/*genetics MH - Repressor Proteins/*genetics MH - ETS Translocation Variant 6 Protein EDAT- 2005/10/11 09:00 MHDA- 2005/12/13 09:00 CRDT- 2005/10/11 09:00 PHST- 2004/08/04 00:00 [received] PHST- 2005/02/15 00:00 [revised] PHST- 2005/02/18 00:00 [accepted] PHST- 2005/10/11 09:00 [pubmed] PHST- 2005/12/13 09:00 [medline] PHST- 2005/10/11 09:00 [entrez] AID - S0165-4608(05)00121-4 [pii] AID - 10.1016/j.cancergencyto.2005.02.020 [doi] PST - ppublish SO - Cancer Genet Cytogenet. 2005 Oct 15;162(2):176-8. doi: 10.1016/j.cancergencyto.2005.02.020.