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2017 ; 21
(9
): 1660-1667
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Epigenetics in Myeloproliferative Neoplasms
#MMPMID28677265
McPherson S
; McMullin MF
; Mills K
J Cell Mol Med
2017[Sep]; 21
(9
): 1660-1667
PMID28677265
show ga
A decade on from the description of JAK2 V617F, the MPNs are circumscribed by an
increasingly intricate landscape. There is now evidence that they are likely the
result of combined genetic dysregulation, with several mutated genes involved in
the regulation of epigenetic mechanisms. Epigenetic changes are not due to a
change in the DNA sequence but are reversible modifications that dictate the way
in which genes may be expressed (or silenced). Among the epigenetic mechanisms,
DNA methylation is probably the best described. Currently known MPN-associated
mutations now include JAK2, MPL, LNK, CBL, CALR, TET2, ASXL1, IDH1, IDH2, IKZF1
and EZH2. Enhancing our knowledge about the mutation profile of patients may
allow them to be stratified into risk groups which would aid clinical decision
making. Ongoing work will answer whether the use of epigenetic therapies as
alterative pathway targets in combination with JAK inhibitors may be more
effective than single agent treatment.