TY - JOUR
T1 - Mutations in CBL occur frequently in juvenile myelomonocytic leukemia
AU - Loh, Mignon L.
AU - Sakai, Debbie S.
AU - Flotho, Christian
AU - Kang, Michelle
AU - Fliegauf, Manfred
AU - Archambeault, Sophie
AU - Mullighan, Charles G.
AU - Chen, Leslie
AU - Bergstraesser, Eva
AU - Bueso-Ramos, Carlos E.
AU - Emanuel, Peter D.
AU - Hasle, Henrik
AU - Issa, Jean-Pierre
AU - Van Den Heuvel-Eibrink, Marry M.
AU - Locatelli, Franco
AU - Starý, Jan
AU - Trebo, Monica
AU - Wlodarski, Marcin
AU - Zecca, Marco
AU - Shannon, Kevin M.
AU - Niemeyer, Charlotte M.
PY - 2009
Y1 - 2009
N2 - Juvenile myelomonocytic leukemia is an aggressive myeloproliferative disorder characterized by malignant transformation in the hematopoietic stem cell compartment with proliferation of differentiated progeny. Seventy-five percent of patients harbor mutations in the NF1, NRAS, KRAS, or PTPN11 genes, which encode components of Ras signaling networks. Using single nucleotide polymorphism arrays, we identified a region of 11q isodisomy that contains the CBL gene in several JMML samples, and subsequently identified CBL mutations in 27 of 159 JMML samples. Thirteen of these mutations alter codon Y371. In this report, we also demonstrate that CBL and RAS/PTPN11 mutations were mutually exclusive in these patients. Moreover, the exclusivity of CBL mutations with respect to other Ras pathway-associated mutations indicates that CBL may have a role in deregulating this key pathway in JMML. (Blood. 2009; 114: 1859-1863)
AB - Juvenile myelomonocytic leukemia is an aggressive myeloproliferative disorder characterized by malignant transformation in the hematopoietic stem cell compartment with proliferation of differentiated progeny. Seventy-five percent of patients harbor mutations in the NF1, NRAS, KRAS, or PTPN11 genes, which encode components of Ras signaling networks. Using single nucleotide polymorphism arrays, we identified a region of 11q isodisomy that contains the CBL gene in several JMML samples, and subsequently identified CBL mutations in 27 of 159 JMML samples. Thirteen of these mutations alter codon Y371. In this report, we also demonstrate that CBL and RAS/PTPN11 mutations were mutually exclusive in these patients. Moreover, the exclusivity of CBL mutations with respect to other Ras pathway-associated mutations indicates that CBL may have a role in deregulating this key pathway in JMML. (Blood. 2009; 114: 1859-1863)
KW - N/A
KW - N/A
UR - http://hdl.handle.net/10807/257661
U2 - 10.1182/blood-2009-01-198416
DO - 10.1182/blood-2009-01-198416
M3 - Article
SN - 1528-0020
VL - 114
SP - 1859
EP - 1863
JO - Blood
JF - Blood
ER -