Mutant calreticulin requires both its mutant C-terminus and the thrombopoietin receptor for oncogenic transformation

S Elf, NS Abdelfattah, E Chen, J Perales-Patón… - Cancer discovery, 2016 - AACR
Somatic mutations in calreticulin (CALR) are present in approximately 40% of patients with
myeloproliferative neoplasms (MPN), but the mechanism by which mutant CALR is …

Activation of the thrombopoietin receptor by mutant calreticulin in CALR-mutant myeloproliferative neoplasms

M Araki, Y Yang, N Masubuchi… - Blood, The Journal …, 2016 - ashpublications.org
Recurrent somatic mutations of calreticulin (CALR) have been identified in patients
harboring myeloproliferative neoplasms; however, their role in tumorigenesis remains …

Defining the requirements for the pathogenic interaction between mutant calreticulin and MPL in MPN

S Elf, NS Abdelfattah, AJ Baral… - Blood, The Journal …, 2018 - ashpublications.org
Mutations in calreticulin (CALR) are phenotypic drivers in the pathogenesis of
myeloproliferative neoplasms. Mechanistic studies have demonstrated that mutant CALR …

Mutant calreticulin in myeloproliferative neoplasms

J How, GS Hobbs, A Mullally - Blood, The Journal of the …, 2019 - ashpublications.org
Recurrent mutations in calreticulin are present in∼ 20% of patients with myeloproliferative
neoplasms (MPNs). Since its discovery in 2013, we now have a more precise understanding …

[HTML][HTML] Calreticulin-mutant proteins induce megakaryocytic signaling to transform hematopoietic cells and undergo accelerated degradation and Golgi-mediated …

L Han, C Schubert, J Köhler, M Schemionek… - Journal of hematology & …, 2016 - Springer
Abstract Background Somatic calreticulin (CALR), Janus kinase 2 (JAK2), and
thrombopoietin receptor (MPL) mutations essentially show mutual exclusion in …

[HTML][HTML] Oncogenic CALR mutant C-terminus mediates dual binding to the thrombopoietin receptor triggering complex dimerization and activation

N Papadopoulos, A Nédélec, A Derenne… - Nature …, 2023 - nature.com
Calreticulin (CALR) frameshift mutations represent the second cause of myeloproliferative
neoplasms (MPN). In healthy cells, CALR transiently and non-specifically interacts with …

Thrombopoietin receptor activation by myeloproliferative neoplasm associated calreticulin mutants

I Chachoua, C Pecquet, M El-Khoury… - Blood, The Journal …, 2016 - ashpublications.org
Mutations in the calreticulin gene (CALR) represented by deletions and insertions in exon 9
inducing a− 1/+ 2 frameshift are associated with a significant fraction of myeloproliferative …

Homomultimerization of mutant calreticulin is a prerequisite for MPL binding and activation

M Araki, Y Yang, M Imai, Y Mizukami, Y Kihara… - Leukemia, 2019 - nature.com
Studies have previously shown that mutant calreticulin (CALR), found in a subset of patients
with myeloproliferative neoplasms (MPNs), interacts with and subsequently promotes the …

Mutant calreticulin interacts with MPL in the secretion pathway for activation on the cell surface

N Masubuchi, M Araki, Y Yang, E Hayashi, M Imai… - Leukemia, 2020 - nature.com
Studies have shown that mutant calreticulin (CALR) constitutively activates the
thrombopoietin (TPO) receptor MPL and thus plays a causal role in the development of …

[PDF][PDF] Immunosuppression by mutated calreticulin released from malignant cells

P Liu, L Zhao, F Loos, C Marty, W Xie, I Martins… - Molecular cell, 2020 - cell.com
Mutations affecting exon 9 of the CALR gene lead to the generation of a C-terminally
modified calreticulin (CALR) protein that lacks the KDEL endoplasmic reticulum (ER) …