PMID- 15192841 OWN - NLM STAT- MEDLINE DCOM- 20041007 LR - 20190816 IS - 1003-9406 (Print) IS - 1003-9406 (Linking) VI - 21 IP - 3 DP - 2004 Jun TI - [Study on mixed lineage leukemia gene rearrangement in AML-M4/M5 by interphase fluorescence in situ hybridization]. PG - 288-90 AB - OBJECTIVE: To explore the value of fluorescence in situ hybridization (FISH) in the detection of mixed lineage leukemia (MLL) rearrangement and to assess the incidence and prognostic significance of MLL gene rearrangement in AML-M4/M5. METHODS: Bone marrow chromosome preparation of 23 cases of acute myeloid leukemia(AML) consisting of 19 cases with M5 and 4 cases with M4 was made using direct method or short-term culture. Karyotypic analysis was carried out by R-banding technique. Dig labeled 11q23 probe which spans the breakpoint cluster region in MLL was used to detect the MLL rearrangement in the above 23 cases. RESULTS: R-banding karyotyping analysis revealed 11q23 translocation in 7 cases, while FISH analysis detected MLL rearrangement in 12 cases including the above 7 cases. CONCLUSION: Interphase FISH was more sensitive in detecting the MLL rearrangement in AML-M4/M5, compared with the conventional cytogenetic method. MLL rearrangement is highly related to AML-M4/M5; it is an indication of poor prognosis. FAU - Pan, Jin-lan AU - Pan JL AD - The First Affiliated Hospital, Jiangsu Hematology Research Institute, Soochow University, Nanjing, Jiangsu, 215006 PR China. FAU - Xue, Yong-quan AU - Xue YQ FAU - Jiang, Hai-yan AU - Jiang HY FAU - Li, Jian-yong AU - Li JY FAU - Chen, Su-ning AU - Chen SN FAU - Wu, Ya-fang AU - Wu YF LA - chi PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - China TA - Zhonghua Yi Xue Yi Chuan Xue Za Zhi JT - Zhonghua yi xue yi chuan xue za zhi = Zhonghua yixue yichuanxue zazhi = Chinese journal of medical genetics JID - 9425197 RN - 0 (DNA-Binding Proteins) RN - 0 (KMT2A protein, human) RN - 0 (Transcription Factors) RN - 149025-06-9 (Myeloid-Lymphoid Leukemia Protein) RN - EC 2.1.1.43 (Histone-Lysine N-Methyltransferase) SB - IM MH - Adolescent MH - Adult MH - Aged MH - DNA-Binding Proteins/*genetics MH - Female MH - *Gene Rearrangement MH - Histone-Lysine N-Methyltransferase MH - Humans MH - *In Situ Hybridization, Fluorescence MH - *Interphase MH - Karyotyping MH - Leukemia, Myeloid, Acute/*genetics MH - Male MH - Middle Aged MH - Myeloid-Lymphoid Leukemia Protein MH - *Proto-Oncogenes MH - *Transcription Factors EDAT- 2004/06/12 05:00 MHDA- 2004/10/08 09:00 CRDT- 2004/06/12 05:00 PHST- 2004/06/12 05:00 [pubmed] PHST- 2004/10/08 09:00 [medline] PHST- 2004/06/12 05:00 [entrez] AID - 940621072 [pii] PST - ppublish SO - Zhonghua Yi Xue Yi Chuan Xue Za Zhi. 2004 Jun;21(3):288-90.