共 33 条
Direct Reversal of Glucocorticoid Resistance by AKT Inhibition in Acute Lymphoblastic Leukemia
被引:212
作者:
Piovan, Erich
[1
,2
,3
]
Yu, Jiyang
[4
,5
,17
]
Tosello, Valeria
[1
,6
]
Herranz, Daniel
[1
]
Ambesi-Impiombato, Alberto
[1
]
Da Silva, Ana Carolina
[1
]
Sanchez-Martin, Marta
[1
]
Perez-Garcia, Arianne
[1
]
Rigo, Isaura
[1
]
Castillo, Mireia
[7
]
Indraccolo, Stefano
[2
]
Cross, Justin R.
[8
]
de Stanchina, Elisa
[9
]
Paietta, Elisabeth
[10
,11
]
Racevskis, Janis
[10
,11
]
Rowe, Jacob M.
[12
]
Tallman, Martin S.
[13
]
Basso, Giuseppe
[14
]
Meijerink, Jules P.
[15
]
Cordon-Cardo, Carlos
[7
]
Califano, Andrea
[1
,4
,5
,16
,17
]
Ferrando, Adolfo A.
[1
,7
,18
,19
,20
]
机构:
[1] Columbia Univ, Inst Canc Genet, New York, NY 10032 USA
[2] Ist Oncol Veneto IRCCS, UOC Immunol & Diagnost Mol Oncol, I-35128 Padua, Italy
[3] Univ Padua, Dipartimento Sci Chirurg Oncol & Gastroenterol, I-35128 Padua, Veneto, Italy
[4] Columbia Univ, Dept Biomed Informat, New York, NY 10032 USA
[5] Columbia Univ, Dept Syst Biol, New York, NY 10032 USA
[6] IRCCS, Ist Oncol Veneto, I-35128 Padua, Veneto, Italy
[7] Mt Sinai Sch Med, Dept Pathol, New York, NY 10029 USA
[8] Mem Sloan Kettering Canc Ctr, Donald B & Catherine C Marron Canc Metab Ctr, New York, NY 10065 USA
[9] Mem Sloan Kettering Canc Ctr, Antitumor Assessment Core Facil, New York, NY 10065 USA
[10] Albert Einstein Coll Med, Dept Med, Bronx, NY 10461 USA
[11] Montefiore Med Ctr North Div, Dept Oncol, Bronx, NY 10466 USA
[12] Shaare Zedek Mem Hosp, Dept Hematol, IL-91031 Jerusalem, Israel
[13] Mem Sloan Kettering Canc Ctr, Dept Med, Leukemia Serv, New York, NY 10065 USA
[14] Univ Padua, Dipartimento Salute della Donna & Bambino, I-35128 Padua, Italy
[15] Sophia Childrens Univ Hosp, Erasmus MC, Dept Pediat Oncol Hematol, Rotterdam, Netherlands
[16] Columbia Univ, Dept Biochem & Mol Biophys, New York, NY 10032 USA
[17] Columbia Univ, Herbert Irving Comprehens Canc Ctr, Canc Regulatory Network Program, New York, NY 10032 USA
[18] Columbia Univ, Herbert Irving Comprehens Canc Ctr, Lymphoid Malignancy & Dev Program, New York, NY 10032 USA
[19] Columbia Univ, Med Ctr, Dept Pediat, New York, NY 10032 USA
[20] Columbia Univ, Med Ctr, Dept Pathol, New York, NY 10032 USA
来源:
基金:
美国国家卫生研究院;
关键词:
IN-VITRO;
GENE-EXPRESSION;
KEY REGULATOR;
PHOSPHORYLATION;
DEXAMETHASONE;
ACTIVATION;
APOPTOSIS;
CHILDREN;
BAD;
INDUCTION;
D O I:
10.1016/j.ccr.2013.10.022
中图分类号:
R73 [肿瘤学];
学科分类号:
100214 ;
摘要:
Glucocorticoid resistance is a major driver of therapeutic failure in T cell acute lymphoblastic leukemia (T-ALL). Here, we identify the AKT1 kinase as a major negative regulator of the NR3C1 glubocorticoid receptor protein activity driving glucocorticoid resistance in T-ALL. Mechanistically, AKT1 impairs glucocorticoid-induced gene expression by direct phosphorylation of NR3C1 at position S134 and blocking glucocorticoid-induced NR3C1 translocation to the nucleus. Moreover, we demonstrate that loss of PTEN and consequent AKT1 activation can effectively block glucocorticoid-induced apoptosis and induce resistance to glucocorticoid therapy. Conversely, pharmacologic inhibition of AKT with MK2206 effectively restores glucocorticoid-induced NR3C1 translocation to the nucleus, increases the response of T-ALL cells to glucocorticoid therapy, and effectively reverses glucocorticoid resistance in vitro and in vivo.
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页码:766 / 776
页数:11
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