PMID- 9680348 OWN - NLM STAT- MEDLINE DCOM- 19980827 LR - 20220331 IS - 0006-4971 (Print) IS - 0006-4971 (Linking) VI - 92 IP - 3 DP - 1998 Aug 1 TI - Presence of a p53 gene deletion in patients with multiple myeloma predicts for short survival after conventional-dose chemotherapy. PG - 802-9 AB - In multiple myeloma (MM), previous studies showed that mutations of the p53 gene are rare events in patients with newly diagnosed disease, but it is not known whether deletions of p53 are of any significance in MM. To address this question, we used interphase fluorescence in situ hybridization (FISH) with a DNA probe specific for the p53 locus at 17p13 and investigated bone marrow plasma cells from 72 patients with MM (59 patients = 81.9% before therapy). By FISH, deletions of p53, which were found to be predominantly monoallelic, were detected in 32.8% and 54.5% of patients with newly diagnosed and relapsed MM, respectively. Karyotypes from six of the patients with a p53 deletion by FISH showed a structural abnormality of 17p in only one of them. Additional FISH studies including a distal-17p probe (specific for the D17S34 locus) provided evidence for an interstitial deletion on 17p resulting in loss of p53 hybridization signals in myeloma cells. Among all 59 patients with newly diagnosed MM, presence of a p53 deletion was associated with stage III (P = .054), but not with other laboratory and clinical parameters. Patients with a p53 deletion had significantly shorter survival time compared with those without a deletion, both from the time of diagnosis (median 13.9 v 38.7 months; P < .0001) and from the time of initiation of induction treatment consisting of conventional dose chemotherapy (median 15.9 months v median not reached at 38 months; P < .0002). On stepwise multivariate regression analysis, presence of a p53 deletion was the most significant independent parameter predicting for shortened survival (P = .002). We conclude that a p53 gene deletion, which can be identified by interphase FISH in almost a third of patients with newly diagnosed MM, is a novel prognostic factor predicting for short survival of MM patients treated with conventional-dose chemotherapy. CI - Copyright 1998 by The American Society of Hematology. FAU - Drach, J AU - Drach J AD - First Department of Internal Medicine, the Division of Clinical Oncology, University of Vienna, Vienna, Austria. johannes.drach@akh-wien.ac.at FAU - Ackermann, J AU - Ackermann J FAU - Fritz, E AU - Fritz E FAU - Kromer, E AU - Kromer E FAU - Schuster, R AU - Schuster R FAU - Gisslinger, H AU - Gisslinger H FAU - DeSantis, M AU - DeSantis M FAU - Zojer, N AU - Zojer N FAU - Fiegl, M AU - Fiegl M FAU - Roka, S AU - Roka S FAU - Schuster, J AU - Schuster J FAU - Heinz, R AU - Heinz R FAU - Ludwig, H AU - Ludwig H FAU - Huber, H AU - Huber H LA - eng PT - Comparative Study PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - Blood JT - Blood JID - 7603509 RN - 5J49Q6B70F (Vincristine) RN - 7S5I7G3JQL (Dexamethasone) RN - 8N3DW7272P (Cyclophosphamide) RN - Q41OR9510P (Melphalan) RN - U68WG3173Y (Carmustine) RN - VB0R961HZT (Prednisone) SB - IM MH - Adult MH - Antineoplastic Combined Chemotherapy Protocols/*therapeutic use MH - Bone Marrow/chemistry/pathology MH - Carmustine/administration & dosage MH - Chromosomes, Human, Pair 17/*genetics/ultrastructure MH - Cyclophosphamide/administration & dosage MH - Dexamethasone/administration & dosage MH - Female MH - *Gene Deletion MH - *Genes, p53 MH - Humans MH - In Situ Hybridization, Fluorescence MH - Interphase MH - Karyotyping MH - Life Tables MH - Male MH - Melphalan/administration & dosage MH - Middle Aged MH - Multiple Myeloma/drug therapy/*genetics/mortality MH - Prednisone/administration & dosage MH - Prognosis MH - Survival Analysis MH - Treatment Outcome MH - Vincristine/administration & dosage EDAT- 1998/07/29 00:00 MHDA- 1998/07/29 00:01 CRDT- 1998/07/29 00:00 PHST- 1998/07/29 00:00 [pubmed] PHST- 1998/07/29 00:01 [medline] PHST- 1998/07/29 00:00 [entrez] AID - S0006-4971(20)53697-5 [pii] PST - ppublish SO - Blood. 1998 Aug 1;92(3):802-9.