Catalog No.S1190 Synonyms: ICI-176334
Molecular Weight(MW): 430.37
Bicalutamide is an androgen receptor (AR) antagonist with IC50 of 0.16 μM in LNCaP/AR(cs)cell line.
Cited by 16 Publications
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Immunohistochemical staining of Ki67 was performed to determine cell proliferation in the tumors. Each tissue section was counted manually in three different areas to assess the Ki67-positive cell index. Data were then presented as number of Ki67-positive cells per x 400 microscope field. Results are presented as the means s.d. **P < 0.001 by Student 's t-test, compared with control.
Oncogene 2014 10.1038/onc.2014.302. Bicalutamide purchased from Selleck.
CX4945 resensitizes CRPC cells to anti-androgen therapy. a, b 22Rv1 and VCaP cells were treated with indicated concentration of bicalutamide (Bic) without CX4945. c, d 22Rv1 and VCaP cells were treated with indicated concentration of bicalutamide (Bic) with a subdose of CX4945 (3 or 5 μM). CCK8 assay was performed at 72 h to measure the cell viability. **P < 0.01, ***P < 0.001
World J Urol, 2017, 35(8):1213-1221. Bicalutamide purchased from Selleck.
(D) Cell apoptosis measured by flow cytometry analysis after cells were exposed to 10μM bicalutamide and 10μM ABT-888 alone or in combination for 48h in MDA-MB-231 and HCC1937. Data are the mean of three independent experiments. *P<0.05, **P<0.01, #P>0.05.
Int J Biol Sci, 2016, 12(12):1500-1510. Bicalutamide purchased from Selleck.
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Choose Selective Androgen Receptor Inhibitors
|Description||Bicalutamide is an androgen receptor (AR) antagonist with IC50 of 0.16 μM in LNCaP/AR(cs)cell line.|
Bicalutamide undergoes an antagonist-to-agonist switch, stimulating AR activity. Bicalutamide treatment of LNCaP/AR(cs) cells in absence of the synthetic androgen R1881 results in altered gene expression consistent with its well-documented agonist activity in context of AR overexpression. Bicalutamide induces cell proliferation in a dose-dependent manner, and only partially antagonized the effects of R1881. Bicalutamide treatment also results in a significant amount of nuclear AR, although less than that observed with R1881. Bicalutamide exhibits partial agonist activity as evidenced by induction of DNA binding at AR target genes and incomplete antagonism of the effects of R1881. In absence of R1881, Bicalutamide partially activates VP16-AR–mediated transcription, indicative of AR binding to DNA. In LNCaP/AR-luc cells with a stably integrates AR-driven luciferase reporter construct. In the presence of R1881, Bicalutamide shows only weak partial antagonism of VP16-AR–mediated transcription with an IC50 of 0.35 μM.  Micromolar bicalutamide causes a significant dose-dependent reduction in clonogenicity.  Dual inhibition of the AR and mTOR signaling pathways provides further benefit with the ridaforolimus-bicalutamide combination producing syner -gistic antiproliferative effects in prostate cancer cells in vitro when compared with each agent alone. 
|In vivo||Single bicalutamide reduces tumor growth by 79%, at defined submaximal doses. The ridaforolimus-bicalutamide combination exhibits improved and potent antitumor activity, almost completely abrogating tumor growth. The combination is also well tolerated, as evidenced by no significant changes in body weight over the course of treatment. Plasma PSA levels are again tightly linked to tumor growth in the combination-treated mice. |
Whole-cell competitive binding assays:Whole-cell competitive binding assays are performed in LNCaP/AR(codon-switch) (LNCaP/AR(cs)) (harbors a mixture of exogenous wild-type AR and endogenous mutant AR (T877A)) and cells propagated in Iscove's or RPMI media supplemented with 10% fetal bovine serum, or during the assay with 10% charcoal-stripped, dextran-treated fetal bovine serum (CSS). Cells are pre-incubated with 18F-FDHT, increasing concentrations (1pM to 1μM) of cold Bicalutamide are added, and the assay is performed to measure specific uptake of 18F-FDHT (4). IC50 values are determined using a one site binding model with least squares curve fitting and R2 > 0.99.
|In vitro||DMSO||86 mg/mL (199.82 mM)|
|Ethanol||5 mg/mL (11.61 mM)|
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Clinical Trial Information
|NCT Number||Recruitment||interventions||Conditions||Sponsor/Collaborators||Start Date||Phases|
|NCT02910050||Recruiting||Drug: Bicalutamide|Drug: Aromatase Inhibitor||Breast Cancer||Xu fei|Sun Yat-sen University||January 2016||Phase 2|
|NCT02614859||Recruiting||Drug: Bicalutamide|Drug: Metformin and Bicalutamide||Cancer of Prostate||Fox Chase Cancer Center|National Cancer Institute (NCI)||December 1 2015||Phase 2|
|NCT02146937||Withdrawn||Drug: Bicalutamide plus Finasteride- Combination therapy||Detectable Prostate Nodules||Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins||March 2014||Phase 2|
|NCT01415778||Completed||Drug: ICI176334-1|Drug: Casodex 80 mg tablet||Healthy||AstraZeneca||August 2011||Phase 1|
|NCT01415791||Completed||Drug: ICI176334-1||Healthy||AstraZeneca||August 2011||Phase 1|
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