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.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 Haematologica
2018 ; 103
(5
): 799-809
Nephropedia Template TP
gab.com Text
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English Wikipedia
The KIT and PDGFRA switch-control inhibitor DCC-2618 blocks growth and survival
of multiple neoplastic cell types in advanced mastocytosis
#MMPMID29439183
Schneeweiss M
; Peter B
; Bibi S
; Eisenwort G
; Smiljkovic D
; Blatt K
; Jawhar M
; Berger D
; Stefanzl G
; Herndlhofer S
; Greiner G
; Hoermann G
; Hadzijusufovic E
; Gleixner KV
; Bettelheim P
; Geissler K
; Sperr WR
; Reiter A
; Arock M
; Valent P
Haematologica
2018[May]; 103
(5
): 799-809
PMID29439183
show ga
Systemic mastocytosis is a complex disease defined by abnormal growth and
accumulation of neoplastic mast cells in various organs. Most patients exhibit a
D816V-mutated variant of KIT, which confers resistance against imatinib. Clinical
problems in systemic mastocytosis arise from mediator-related symptoms and/or
organ destruction caused by malignant expansion of neoplastic mast cells and/or
other myeloid cells in various organ systems. DCC-2618 is a spectrum-selective
pan KIT and PDGFRA inhibitor which blocks KIT D816V and multiple other kinase
targets relevant to systemic mastocytosis. We found that DCC-2618 inhibits the
proliferation and survival of various human mast cell lines (HMC-1, ROSA, MCPV-1)
as well as primary neoplastic mast cells obtained from patients with advanced
systemic mastocytosis (IC(50) <1 ?M). Moreover, DCC-2618 decreased growth and
survival of primary neoplastic eosinophils obtained from patients with systemic
mastocytosis or eosinophilic leukemia, leukemic monocytes obtained from patients
with chronic myelomonocytic leukemia with or without concomitant systemic
mastocytosis, and blast cells obtained from patients with acute myeloid leukemia.
Furthermore, DCC-2618 was found to suppress the proliferation of endothelial
cells, suggesting additional drug effects on systemic mastocytosis-related
angiogenesis. Finally, DCC-2618 was found to downregulate IgE-mediated histamine
release from basophils and tryptase release from mast cells. Together, DCC-2618
inhibits growth, survival and activation of multiple cell types relevant to
advanced systemic mastocytosis. Whether DCC-2618 is effective in vivo in patients
with advanced systemic mastocytosis is currently under investigation in clinical
trials.