Clinical and molecular characterisation of a prospectively collected cohort of children and adolescents with polycythemia vera.
The clinical, haematological, molecular and treatment data of eight paediatric patients with polycythemia vera (PV) were collected prospectively. One patient developed PV after treatment for large-cell anaplastic lymphoma. Budd-Chiari syndrome was diagnosed in two patients, necessitating orthotopic liver transplantation in one and transjugular portosystemic shunting in the other. The remaining patients presented with non-specific symptoms. Endogenous erythroid colonies were detected in all cases examined. The JAK2(V617F) mutation was found in six patients; two patients displayed JAK2 exon 12 mutations, including one novel mutation (JAK2(H538-K539delinsI)). CD177 (PRV-1) mRNA expression was increased in three of five patients tested.
Cario
Holger
H
Department of Paediatrics, University Hospital Ulm, Ulm, Germany. holger.cario@uniklinik-ulm.de
Schwarz
Klaus
K
Herter
Jan M
JM
Komrska
Vladimir
V
McMullin
Mary F
MF
Minkov
Milen
M
Niemeyer
Charlotte
C
Pospisilova
Dagmar
D
Reinhard
Harald
H
Debatin
Klaus-Michael
KM
Pahl
Heike L
HL
D000293:Adolescent; D002648:Child; D015331:Cohort Studies; D005091:Exons; D005260:Female; D058851:GPI-Linked Proteins; D006801:Humans; D007519:Isoantigens / Q000235:genetics; D053614:Janus Kinase 2 / Q000235:genetics* / Q000378:metabolism; D008297:Male; D008562:Membrane Glycoproteins / Q000235:genetics; D009154:Mutation; D011087:Polycythemia Vera / Q000175:diagnosis / Q000235:genetics*; D016133:Polymerase Chain Reaction; D011446:Prospective Studies; D012333:RNA, Messenger / Q000378:metabolism; D011956:Receptors, Cell Surface / Q000235:genetics
C407242:CD177 protein, human; D058851:GPI-Linked Proteins; D007519:Isoantigens; D008562:Membrane Glycoproteins; D012333:RNA, Messenger; D011956:Receptors, Cell Surface; D053614:Janus Kinase 2