TY - JOUR
T1 - Classification and Personalized Prognostic Assessment on the Basis of Clinical and Genomic Features in Myelodysplastic Syndromes
AU - Bersanelli, Matteo
AU - Travaglino, Erica
AU - Meggendorfer, Manja
AU - Matteuzzi, Tommaso
AU - Sala, Claudia
AU - Mosca, Ettore
AU - Chiereghin, Chiara
AU - Di Nanni, Noemi
AU - Gnocchi, Matteo
AU - Zampini, Matteo
AU - Rossi, Marianna
AU - Maggioni, Giulia
AU - Termanini, Alberto
AU - Angelucci, Emanuele
AU - Bernardi, Massimo
AU - Borin, Lorenza
AU - Bruno, Benedetto
AU - Bonifazi, Francesca
AU - Santini, Valeria
AU - Bacigalupo, Andrea
AU - Voso, Maria Teresa
AU - Oliva, Esther
AU - Riva, Marta
AU - Ubezio, Marta
AU - Morabito, Lucio
AU - Campagna, Alessia
AU - Saitta, Claudia
AU - Savevski, Victor
AU - Giampieri, Enrico
AU - Remondini, Daniel
AU - Passamonti, Francesco
AU - Ciceri, Fabio
AU - Bolli, Niccolò
AU - Rambaldi, Alessandro
AU - Kern, Wolfgang
AU - Kordasti, Shahram
AU - Sole, Francesc
AU - Palomo, Laura
AU - Sanz, Guillermo
AU - Santoro, Armando
AU - Platzbecker, Uwe
AU - Fenaux, Pierre
AU - Milanesi, Luciano
AU - Haferlach, Torsten
AU - Castellani, Gastone
AU - Della Porta, Matteo G.
PY - 2021/4/10
Y1 - 2021/4/10
N2 - PURPOSE: Recurrently mutated genes and chromosomal abnormalities have been identified in myelodysplastic syndromes (MDS). We aim to integrate these genomic features into disease classification and prognostication. METHODS: We retrospectively enrolled 2,043 patients. Using Bayesian networks and Dirichlet processes, we combined mutations in 47 genes with cytogenetic abnormalities to identify genetic associations and subgroups. Random-effects Cox proportional hazards multistate modeling was used for developing prognostic models. An independent validation on 318 cases was performed. RESULTS: We identify eight MDS groups (clusters) according to specific genomic features. In five groups, dominant genomic features include splicing gene mutations (SF3B1, SRSF2, and U2AF1) that occur early in disease history, determine specific phenotypes, and drive disease evolution. These groups display different prognosis (groups with SF3B1 mutations being associated with better survival). Specific co-mutation patterns account for clinical heterogeneity within SF3B1- and SRSF2-related MDS. MDS with complex karyotype and/or TP53 gene abnormalities and MDS with acute leukemia-like mutations show poorest prognosis. MDS with 5q deletion are clustered into two distinct groups according to the number of mutated genes and/or presence of TP53 mutations. By integrating 63 clinical and genomic variables, we define a novel prognostic model that generates personally tailored predictions of survival. The predicted and observed outcomes correlate well in internal cross-validation and in an independent external cohort. This model substantially improves predictive accuracy of currently available prognostic tools. We have created a Web portal that allows outcome predictions to be generated for user-defined constellations of genomic and clinical features. CONCLUSION: Genomic landscape in MDS reveals distinct subgroups associated with specific clinical features and discrete patterns of evolution, providing a proof of concept for next-generation disease classification and prognosis.
AB - PURPOSE: Recurrently mutated genes and chromosomal abnormalities have been identified in myelodysplastic syndromes (MDS). We aim to integrate these genomic features into disease classification and prognostication. METHODS: We retrospectively enrolled 2,043 patients. Using Bayesian networks and Dirichlet processes, we combined mutations in 47 genes with cytogenetic abnormalities to identify genetic associations and subgroups. Random-effects Cox proportional hazards multistate modeling was used for developing prognostic models. An independent validation on 318 cases was performed. RESULTS: We identify eight MDS groups (clusters) according to specific genomic features. In five groups, dominant genomic features include splicing gene mutations (SF3B1, SRSF2, and U2AF1) that occur early in disease history, determine specific phenotypes, and drive disease evolution. These groups display different prognosis (groups with SF3B1 mutations being associated with better survival). Specific co-mutation patterns account for clinical heterogeneity within SF3B1- and SRSF2-related MDS. MDS with complex karyotype and/or TP53 gene abnormalities and MDS with acute leukemia-like mutations show poorest prognosis. MDS with 5q deletion are clustered into two distinct groups according to the number of mutated genes and/or presence of TP53 mutations. By integrating 63 clinical and genomic variables, we define a novel prognostic model that generates personally tailored predictions of survival. The predicted and observed outcomes correlate well in internal cross-validation and in an independent external cohort. This model substantially improves predictive accuracy of currently available prognostic tools. We have created a Web portal that allows outcome predictions to be generated for user-defined constellations of genomic and clinical features. CONCLUSION: Genomic landscape in MDS reveals distinct subgroups associated with specific clinical features and discrete patterns of evolution, providing a proof of concept for next-generation disease classification and prognosis.
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U2 - 10.1200/JCO.20.01659
DO - 10.1200/JCO.20.01659
M3 - Article
C2 - 33539200
AN - SCOPUS:85104047954
VL - 39
SP - 1223
EP - 1233
JO - Journal of Clinical Oncology
JF - Journal of Clinical Oncology
SN - 0732-183X
IS - 11
ER -