Abstract | PURPOSE:
Survivin overexpression has been associated with an unfavorable outcome in human PCa; however, its role in metastasis remains elusive. We aim to (a) evaluate the clinical implications of survivin expression in PCa bone metastasis; (b) determine in vivo efficacy of BKM1740, a small-molecule compound, against PCa skeletal growth and survival; and (c) investigate molecular mechanism by which BKM1740 augments apoptosis in bone metastatic PCa cells. EXPERIMENTAL DESIGN:
Survivin expression was analyzed in PCa specimens and experimental models. Bone metastatic C4-2 and ARCaP(M) cell lines were used to evaluate the in vitro effects of BKM1740 and molecular mechanism for the induction of apoptosis. C4-2 cells were grown intratibially in athymic nude mice to evaluate the in vivo efficacy of BKM1740. Tumor growth in mouse bone was assessed by serum prostate-specific antigen and radiography and confirmed by immunohistochemical analyses. RESULTS: CONCLUSIONS:
Survivin expression is associated with PCa bone metastasis. BKM1740 treatment specifically inhibited survivin and induced apoptosis in vitro and was efficacious in retarding PCa skeletal growth in a mouse model. BKM1740 is a promising small-molecule compound that could be used to treat PCa bone metastasis.
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Authors | Seong Il Seo, Lajos Gera, Haiyen E Zhau, Wei Ping Qian, Shareen Iqbal, Nicole A Johnson, Shumin Zhang, Majd Zayzafoon, John Stewart, Ruoxiang Wang, Leland W K Chung, Daqing Wu |
Journal | Clinical cancer research : an official journal of the American Association for Cancer Research
(Clin Cancer Res)
Vol. 14
Issue 19
Pg. 6198-206
(Oct 01 2008)
ISSN: 1078-0432 [Print] United States |
PMID | 18829499
(Publication Type: Journal Article, Research Support, N.I.H., Extramural, Research Support, U.S. Gov't, Non-P.H.S.)
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Chemical References |
- 1-((N-(2,3,4,5,6-pentafluorocinnamoyl)-O-(2,6-dichlorobenzyl))tyrosyl)-4-(bis(diethoxyphosphono))methylaminiopiperidine
- Amides
- Antineoplastic Agents
- Culture Media, Conditioned
- Diphosphonates
- Tyrosine
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Topics |
- Amides
- Animals
- Antineoplastic Agents
(pharmacology)
- Apoptosis
- Bone Neoplasms
(drug therapy, secondary)
- Cell Line, Tumor
- Cell Proliferation
- Culture Media, Conditioned
(pharmacology)
- Diphosphonates
(pharmacology)
- Flow Cytometry
- Humans
- Male
- Mice
- Neoplasm Metastasis
- Neoplasm Transplantation
- Prostatic Neoplasms
(drug therapy, pathology)
- Tyrosine
(analogs & derivatives, pharmacology)
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