PMID- 22933333 OWN - NLM STAT- MEDLINE DCOM- 20130729 LR - 20121005 IS - 1098-2264 (Electronic) IS - 1045-2257 (Linking) VI - 51 IP - 12 DP - 2012 Dec TI - Incidence of 17p deletions and TP53 mutation in myelodysplastic syndrome and acute myeloid leukemia with 5q deletion. PG - 1086-92 LID - 10.1002/gcc.21993 [doi] AB - TP53 mutations are frequent in myelodysplastic syndrome (MDS) and acute myeloid leukemia (AML) with complex karyotype that include del(5q) and are often associated with deletion of 17p. They have also recently been observed in MDS with isolated del(5q). We assessed the incidence of 17p deletion detected by fluorescence in situ hybridization (FISH) and of TP53 mutations detected by direct sequencing and their correlation and prognostic value in 26 MDS and 17 AML with del(5q). In the 20 cases with isolated del(5q) or one additional abnormality, no 17p deletion was found and 3 of the 18 cases analyzed (17%) had TP53 mutation. In the 23 patients with complex karyotype, 17p deletion was suspected by conventional cytogenetics in 15 cases and confirmed by FISH in 10 of them, while TP53 mutation was found in 8 of the 15 patients tested (53%), only five of whom had 17p deletion. In the whole patient series, TP53 mutations were associated with shorter survival (P = 0.07). We confirm the existence of TP53 mutations in 17% of MDS with isolated del(5q). In patients with del(5q) and complex karyotype, FISH and direct sequencing are complementary techniques to analyze TP53 abnormalities. Our findings also suggest that sequencing of the TP53 gene should be included in the study of patients with del(5q) as a single abnormality or in complex karyotype before lenalidomide treatment. CI - Copyright (c) 2012 Wiley Periodicals, Inc. FAU - Sebaa, Amel AU - Sebaa A AD - Laboratoire d'Hematologie, Hopital Avicenne, Assistance Publique-Hopitaux de Paris (AP-HP)/Universite Paris 13, Bobigny. France. FAU - Ades, Lionel AU - Ades L FAU - Baran-Marzack, Fanny AU - Baran-Marzack F FAU - Mozziconacci, Marie-Joelle AU - Mozziconacci MJ FAU - Penther, Dominique AU - Penther D FAU - Dobbelstein, Sophie AU - Dobbelstein S FAU - Stamatoullas, Aspasia AU - Stamatoullas A FAU - Recher, Christian AU - Recher C FAU - Prebet, Thomas AU - Prebet T FAU - Moulessehoul, Soraya AU - Moulessehoul S FAU - Fenaux, Pierre AU - Fenaux P FAU - Eclache, Virginie AU - Eclache V LA - eng PT - Journal Article DEP - 20120830 PL - United States TA - Genes Chromosomes Cancer JT - Genes, chromosomes & cancer JID - 9007329 RN - 0 (TP53 protein, human) RN - 0 (Tumor Suppressor Protein p53) SB - IM MH - Adult MH - Aged MH - Aged, 80 and over MH - *Chromosome Deletion MH - Chromosomes, Human, Pair 5/*genetics MH - Female MH - Humans MH - In Situ Hybridization, Fluorescence MH - Karyotyping MH - Leukemia, Myeloid, Acute/*genetics MH - Male MH - Middle Aged MH - *Mutation MH - Myelodysplastic Syndromes/*genetics MH - Tumor Suppressor Protein p53/*genetics EDAT- 2012/08/31 06:00 MHDA- 2013/07/31 06:00 CRDT- 2012/08/31 06:00 PHST- 2012/03/19 00:00 [received] PHST- 2012/07/06 00:00 [revised] PHST- 2012/07/09 00:00 [accepted] PHST- 2012/08/31 06:00 [entrez] PHST- 2012/08/31 06:00 [pubmed] PHST- 2013/07/31 06:00 [medline] AID - 10.1002/gcc.21993 [doi] PST - ppublish SO - Genes Chromosomes Cancer. 2012 Dec;51(12):1086-92. doi: 10.1002/gcc.21993. Epub 2012 Aug 30.