Chronic myeloproliferative disorder
|
0.500 |
CausalMutation
|
disease |
CGI |
|
|
|
Chronic myeloproliferative disorder
|
0.500 |
Biomarker
|
disease |
BEFREE |
<b>Expert Opinion</b>: Altogether, we believe that MPL is an important, but challenging, therapeutic target in MPNs that requires novel strategies to interrupt the specific conformational changes induced by each mutation or pathologic interaction without compromising the key functions of wild type MPL.
|
31092065 |
2019 |
Chronic myeloproliferative disorder
|
0.500 |
GeneticVariation
|
disease |
BEFREE |
MPL mutational frequency in MPNs is substantially less (<10%).
|
18297515 |
2008 |
Chronic myeloproliferative disorder
|
0.500 |
GeneticVariation
|
disease |
BEFREE |
MPL gene mutations seem to be associated with thrombocytosis, regardless of the type of myeloproliferative neoplasm.
|
19643476 |
2010 |
Chronic myeloproliferative disorder
|
0.500 |
GeneticVariation
|
disease |
BEFREE |
MPL exon 10 mutations were the second class of mutations shown to be associated with the pathogenesis of some Philadelphia chromosome - negative myeloproliferative neoplasms (MPNs).
|
21570117 |
2011 |
Chronic myeloproliferative disorder
|
0.500 |
GeneticVariation
|
disease |
BEFREE |
MPL mutations are neither frequent nor specific enough to warrant their routine use for MPN diagnosis, but they may be useful in resolving specific diagnostic problems.
|
21723416 |
2011 |
Chronic myeloproliferative disorder
|
0.500 |
GeneticVariation
|
disease |
BEFREE |
A multiplex snapback primer system was developed for the simultaneous detection of JAK2 V617F and MPL W515L/K mutations in Philadelphia chromosome- (Ph-) negative myeloproliferative neoplasms (MPNs).
|
24729973 |
2014 |
Chronic myeloproliferative disorder
|
0.500 |
GeneticVariation
|
disease |
BEFREE |
Acquired mutations in the juxtamembrane region of MPL (W515K or W515L), the receptor for thrombopoietin, have been described in patients with primary myelofibrosis or essential thrombocythemia, which are chronic myeloproliferative disorders.
|
18669880 |
2008 |
Chronic myeloproliferative disorder
|
0.500 |
Biomarker
|
disease |
BEFREE |
Acquiring mutations in JAK2/CALR/MPL or the BCR-ABL translocation probably drive the oncogenic phenotype towards a specific MPN.
|
28335073 |
2017 |
Chronic myeloproliferative disorder
|
0.500 |
GeneticVariation
|
disease |
BEFREE |
As JAK2 V617F, MPL W515L is a novel acquired mutation that induces constitutive cytokine-independent activation of the JAK-STAT pathway in myeloproliferative disorders (MPD).
|
18464114 |
2008 |
Chronic myeloproliferative disorder
|
0.500 |
Biomarker
|
disease |
BEFREE |
Based on these findings, we propose a model in which mutant CALR induces MPL activation on the cell surface to promote MPN development.
|
31462733 |
2020 |
Chronic myeloproliferative disorder
|
0.500 |
Biomarker
|
disease |
BEFREE |
CALR mutations are identified in about 30% of JAK2/MPL-unmutated myeloproliferative neoplasms (MPNs) including essential thrombocythemia (ET) and primary myelofibrosis.
|
27716741 |
2016 |
Chronic myeloproliferative disorder
|
0.500 |
Biomarker
|
disease |
BEFREE |
Calreticulin (CALR) mutations are present in 50% to 85% of JAK2/MPL wild-type (wt) myeloproliferative neoplasms (MPNs).
|
27124925 |
2016 |
Chronic myeloproliferative disorder
|
0.500 |
AlteredExpression
|
disease |
BEFREE |
Collectively, cell-autonomous and constitutive activation of MPL is a cause of MPNs that are mediated by mutant CALR.
|
31848992 |
2020 |
Chronic myeloproliferative disorder
|
0.500 |
GeneticVariation
|
disease |
BEFREE |
Comparative genomic hybridization (CGH) array and targeted sequencing detected no mutation in nine genes reported to influence the JAK2V617F-driven MPNs (MPL, LNK, CBL, TET2, EZH2, IKZF1, IDH1, IDH2, ASXL1).
|
22749035 |
2012 |
Chronic myeloproliferative disorder
|
0.500 |
GeneticVariation
|
disease |
BEFREE |
Concurrence of B-lymphoblastic leukemia and myeloproliferative neoplasm with copy neutral loss of heterozygosity at chromosome 1p harboring a MPL W515S mutation.
|
25453399 |
2015 |
Chronic myeloproliferative disorder
|
0.500 |
Biomarker
|
disease |
BEFREE |
Considering these results, we propose that mutant CALR promotes myeloproliferative neoplasm development by activating c-MPL and its downstream pathway.
|
26817954 |
2016 |
Chronic myeloproliferative disorder
|
0.500 |
GeneticVariation
|
disease |
BEFREE |
Decreases in the levels of MPL mutation were seen in sequential marrow samples from some patients under treatment with biologic therapies, but not in those treated with kinase inhibitors, consistent with selective response of the MPL-mutated clone similar to the responses seen in JAK2-mutated MPN.
|
20113830 |
2010 |
Chronic myeloproliferative disorder
|
0.500 |
GeneticVariation
|
disease |
CLINVAR |
Deep sequencing reveals double mutations in cis of MPL exon 10 in myeloproliferative neoplasms.
|
21228032 |
2011 |
Chronic myeloproliferative disorder
|
0.500 |
GeneticVariation
|
disease |
BEFREE |
Detection of CALR mutations in a cohort of JAK2/MPL-non-mutated patients with suspected MPN confirmed the diagnosis of MPN in around 53% of cases.
|
26555437 |
2016 |
Chronic myeloproliferative disorder
|
0.500 |
Biomarker
|
disease |
BEFREE |
Discovery in 2006 of mutants of thrombopoietin receptor (TPO-R/MPL) and later on of mutants in negative regulators of JAK-STAT pathway led to the notion that persistent JAK2 activation is a hallmark of MPNs.
|
26370832 |
2015 |
Chronic myeloproliferative disorder
|
0.500 |
AlteredExpression
|
disease |
BEFREE |
Expression of mutant CALR in murine or human haematopoietic cell lines was accompanied by myeloproliferative leukemia protein (MPL)-dependent activation of MAPK signalling, and MPN patients with CALR mutations showed increased MAPK activity in CD34 cells, platelets and megakaryocytes.
|
27740635 |
2017 |
Chronic myeloproliferative disorder
|
0.500 |
GeneticVariation
|
disease |
BEFREE |
Four main molecular types of clonal MPN can be distinguished: JAK2(V617F)-positive ET and PV; JAK2 wild-type ET carrying the MPL(515); mutations in the calreticulin (CALR) gene in JAK2/MPL wild-type ET and MF, and a small proportion of JAK2/MPL/CALR wild-type ET and MF patients.
|
25116092 |
2015 |
Chronic myeloproliferative disorder
|
0.500 |
GeneticVariation
|
disease |
BEFREE |
Genomic DNA from peripheral blood, bone marrow, and FFPE bone marrow clot preparations from 52 MPN specimens with known JAK2 and MPL mutation status and 29 non-MPN specimens was analyzed.
|
27018326 |
2016 |
Chronic myeloproliferative disorder
|
0.500 |
GeneticVariation
|
disease |
BEFREE |
Genotyping for CALR mutations represents a novel useful tool for establishing a clonal myeloproliferative disorder in JAK2 and MPL wt patients with thrombocytosis and may have prognostic and therapeutic relevance.
|
24371211 |
2014 |