Phosphoinositide-Phospholipase C {beta}1 Mono-Allelic Deletion Is Associated With Myelodysplastic Syndromes Evolution Into Acute Myeloid Leukemia (Articolo in rivista)

Type
Label
  • Phosphoinositide-Phospholipase C {beta}1 Mono-Allelic Deletion Is Associated With Myelodysplastic Syndromes Evolution Into Acute Myeloid Leukemia (Articolo in rivista) (literal)
Anno
  • 2009-01-01T00:00:00+01:00 (literal)
Alternative label
  • Follo MY, Finelli C, Clissa C, Mongiorgi S, Bosi C, Martinelli G, Baccarani M, Manzoli L, Martelli AM, Cocco L. (2009)
    Phosphoinositide-Phospholipase C {beta}1 Mono-Allelic Deletion Is Associated With Myelodysplastic Syndromes Evolution Into Acute Myeloid Leukemia
    in Journal of clinical oncology
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Follo MY, Finelli C, Clissa C, Mongiorgi S, Bosi C, Martinelli G, Baccarani M, Manzoli L, Martelli AM, Cocco L. (literal)
Pagina inizio
  • 782 (literal)
Pagina fine
  • 790 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 27 (literal)
Rivista
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Cellular Signalling Laboratory, Department of Human Anatomical Sciences; Institute of Hematology and Medical Oncology \"L. e A. Seràgnoli\", University of Bologna; Hematology Unit, Ospedale Civile di Piacenza; Istituto per i Trapianti d'Organo e l'Immunocitologia del CNR, Sezione di Bologna, Bologna, Italy (literal)
Titolo
  • Phosphoinositide-Phospholipase C {beta}1 Mono-Allelic Deletion Is Associated With Myelodysplastic Syndromes Evolution Into Acute Myeloid Leukemia (literal)
Abstract
  • PURPOSE To evaluate the association between the presence of phosphoinositide-phospholipase C beta1 (PI-PLCbeta1) mono-allelic deletion with the clinical outcome of myelodysplastic syndromes (MDS) patients. METHODS PI-PLCbeta1, PI-PLCbeta4, and PI-PLCgamma1 cytogenetic investigations were performed on 80 newly diagnosed MDS patients (18 low risk, 26 intermediate 1, 18 intermediate 2, 18 high risk) comparing the results with the clinical outcome of the patients. Moreover, fluorescent in situ hybridization results were validated by real-time polymerase chain reaction (PCR). Finally, PI-PLCbeta1 gene and protein expression were assessed by both real-time PCR and immunocytochemical experiments. Results Collectively, 35 (43.75%) of 80 of the MDS patients showed a specific mono-allelic deletion of PI-PLCbeta1. Kaplan-Meier analysis revealed a significant association (P < .0001) between the PI-PLCbeta1 mono-allelic deletion and a higher risk of evolution into acute myeloid leukemia (AML), since 23 of 35 MDS patients (65.7%) bearing the PI-PLCbeta1 mono-allelic deletion evolved into AML. Even in multivariate analysis, the PI-PLCbeta1 mono-allelic deletion retained a higher significance, with a P < .001, as a prognostic factor of evolution into AML (odds ratio [OR] 1.83; 95% CI, 2.26 to 17.24; P = .00045). Finally, PI-PLCbeta1 deletion was related to an altered gene and protein expression. CONCLUSION PI-PLCbeta1 mono-allelic deletion is associated with a worse clinical outcome in MDS patients, hinting at the identification of a new group at higher risk of AML evolution and representing a reliable prognostic tool. Moreover, targeting PI-PLCbeta1 pathways might emerge as a new therapeutic strategy for MDS (literal)
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