2011
The novel JAK inhibitor AZD1480 blocks STAT3 and FGFR3 signaling, resulting insuppression of human myeloma cell growth and survival.
SCUTO, A.; Pavel KREJČÍ; L. POPPLEWELL; J. WU; Y. WANG et al.Základní údaje
Originální název
The novel JAK inhibitor AZD1480 blocks STAT3 and FGFR3 signaling, resulting insuppression of human myeloma cell growth and survival.
Název česky
he novel JAK inhibitor AZD1480 blocks STAT3 and FGFR3 signaling, resulting insuppression of human myeloma cell growth and survival.
Autoři
SCUTO, A.; Pavel KREJČÍ; L. POPPLEWELL; J. WU; Y. WANG; M. KUJAWSKI; C. KOWOLIK; H. XIN; L. CHEN; Y. WANG; L. KRETZNER; H. YU; W.R. WILCOX; Y. YEN; S. FORMAN a R. JOVE
Vydání
Leukemia, London : England, Nature Publishing Group, Specialist Jour, 2011, 0887-6924
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
30105 Physiology
Stát vydavatele
Velká Británie a Severní Irsko
Utajení
není předmětem státního či obchodního tajemství
Impakt faktor
Impact factor: 9.561
Označené pro přenos do RIV
Ano
Kód RIV
RIV/00216224:14310/11:00050507
Organizační jednotka
Přírodovědecká fakulta
UT WoS
Klíčová slova anglicky
myeloma; JAK2; STAT3; FGFR3
Změněno: 15. 2. 2012 09:32, Mgr. Jiřina Medalová, Ph.D.
Anotace
V originále
IL-6 and downstream JAK-dependent signaling pathways have critical roles in the pathophysiology of multiple myeloma (MM). We investigated the effects of a novel small-molecule JAK inhibitor (AZD1480) on IL-6/JAK signal transduction and its biological consequences on the human myeloma-derived cell lines U266 and Kms. 11. At low micromolar concentrations, AZD1480 blocks cell proliferation and induces apoptosis of myeloma cell lines. These biological responses to AZD1480 are associated with concomitant inhibition of phosphorylation of JAK2, STAT3 and MAPK signaling proteins. In addition, there is inhibition of expression of STAT3 target genes, particularly Cyclin D2. Examination of a wider variety of myeloma cells (RPMI 8226, OPM-2, NCI-H929, Kms. 18, MM1. S and IM-9), as well as primary myeloma cells, showed that AZD1480 has broad efficacy. In contrast, viability of normal peripheral blood (PB) mononuclear cells and CD138(+) cells derived from healthy controls was not significantly inhibited. Importantly, AZD1480 induces cell death of Kms. 11 cells grown in the presence of HS-5 bone marrow (BM)-derived stromal cells and inhibits tumor growth in a Kms. 11 xenograft mouse model, accompanied with inhibition of phospho-FGFR3, phospho-JAK2, phospho- STAT3 and Cyclin D2 levels. In sum, AZD1480 blocks proliferation, survival, FGFR3 and JAK/STAT3 signaling in myeloma cells cultured alone or cocultured with BM stromal cells, and in vivo. Thus, AZD1480 represents a potential new therapeutic agent for patients with MM.
Návaznosti
| GA301/09/0587, projekt VaV |
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| MSM0021622430, záměr |
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