The Baxα:Bcl‐2 ratio modulates the response to dexamethasone in leukaemic cells and is highly variable in childhood acute leukaemia
The Baxα:Bcl‐2 ratio modulates the response to dexamethasone in leukaemic cells and is highly variable in childhood acute leukaemia
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Baxα:Bcl-2 比率调节白血病细胞对地塞米松的反应,并且在儿童急性白血病中变化很大
DOI:
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发表时间:
1997
影响因子:
6.4
通讯作者:
L. Smets
中科院分区:
文献类型:
--
作者:
G. Salomons;H. Brady;M. Verwijs;J. D. van den Berg;A. Hart;H. van den Berg;H. Behrendt;K. Hahlen;L. Smets
Bcl‐2 over‐expression has been shown to inhibit apoptosis induced by a variety of stimuli, whereas a predominance of Baxα to Bcl‐2 accelerates apoptosis upon apoptotic stimuli. We sought to study the relevance of these apoptotic regulating gene products in leukaemia. In a panel of leukaemia and lymphoma cell lines (HL60, DoHH2, CEM C7, L1210 and S49), the Baxα‐to‐Bcl‐2 ratio as assessed by Western‐blot analysis correlated with sensitivity to dexamethasone treatment. In addition, in HAbaxα‐transfected CEM C7 clones, a similar correlation was found for dexamethasone and thapsigargin sensitivity. In bone‐marrow aspirates from patients with childhood acute lymphoblastic or myelocytic leukaemia (ALL, n = 48; AML, n = 8), the Bcl‐2 and Baxα levels were highly variable, but well within the range found in the Baxα transfectants and in the established cell lines. Bcl‐2 levels were lower in T‐ than in B‐lineage ALL, which could be ascribed to simultaneous inverse relation between Bcl‐2 and WBC. By contrast, Baxα:Bcl‐2 was independent of any presenting feature and was largely dependent on Baxα levels. Results suggest that Baxα:Bcl‐2, rather than Bcl‐2 alone is important for the survival of drug‐induced apoptosis in leukemic cell lines and ALL. Int. J. Cancer 71: 959‐965, 1997. © 1997 Wiley‐Liss Inc.
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影响因子:
20.3
作者:
Marks, DI;Kurz, BW;Haines, DS
通讯作者:
Haines, DS
DOI:
10.1073/pnas.91.14.6569
发表时间:
1994-07-05
影响因子:
11.1
作者:
LAM, M;DUBYAK, G;DISTELHORST, CW
通讯作者:
DISTELHORST, CW
影响因子:
20.3
作者:
Campana,D;Coustan-Smith,E;Manabe,A;Buschle,M;Raimondi,SC;Behm,FG;Ashmun,R;Aricò,M;Biondi,A;Pui,CH
通讯作者:
Pui,CH
影响因子:
20.3
作者:
Park,JR;Bernstein,ID;Hockenbery,DM
通讯作者:
Hockenbery,DM
影响因子:
1.7
作者:
Schulkens, Iris A.;Castricum, Kitty C. M.;Thijssen, Victor L.
通讯作者:
Thijssen, Victor L.