Pharmacological Exploitation of the Peroxisome Proliferator-Activated Receptor γ Agonist Ciglitazone To Develop a Novel Class of Androgen Receptor-Ablative Agents
摘要:
On the basis of our finding that the peroxisome proliferator-activated receptor gamma (PPAR gamma) agonist ciglitazone at high doses was able to mediate PPAR gamma-independent transcriptional repression of androgen receptor (AR) in a tumor cell-specific manner, we used Delta 2CG, a PPAR gamma-inactive analogue of ciglitazone, to conduct lead optimization to develop a novel class of AR-ablative agents. Structure-activity analysis indicates a high degree of flexibility in realigning Delta 2CG's structural moieties without compromising potency in AR repression, as evidenced by the higher AR-ablative activity of the permuted isomer 9 [(Z)-5-(4-hydroxybenzylidene)3-(1-methylcyclohexylmethyl)thiazolidine-2,4-dione]. Further modificiations of 9 gave rise to 12 [(Z)-5-(4-hydroxy-3-trifluoromethylbenzylidene)-3-(1-methylcyclohexylmethyl)thiazolidine-2,4-dione], which completely inhibited AR expression in LNCaP cells at low micromolar concentrations. This AR down-regulation led to growth inhibition in LNCaP cells through apoptosis induction. Moreover, the role of AR repression in the antiproliferative effect of compound 12 was validated by the differential inhibition of cell viability between androgen-responsive and androgen-nonresponsive cells.
Pharmacological Exploitation of the Peroxisome Proliferator-Activated Receptor γ Agonist Ciglitazone To Develop a Novel Class of Androgen Receptor-Ablative Agents
摘要:
On the basis of our finding that the peroxisome proliferator-activated receptor gamma (PPAR gamma) agonist ciglitazone at high doses was able to mediate PPAR gamma-independent transcriptional repression of androgen receptor (AR) in a tumor cell-specific manner, we used Delta 2CG, a PPAR gamma-inactive analogue of ciglitazone, to conduct lead optimization to develop a novel class of AR-ablative agents. Structure-activity analysis indicates a high degree of flexibility in realigning Delta 2CG's structural moieties without compromising potency in AR repression, as evidenced by the higher AR-ablative activity of the permuted isomer 9 [(Z)-5-(4-hydroxybenzylidene)3-(1-methylcyclohexylmethyl)thiazolidine-2,4-dione]. Further modificiations of 9 gave rise to 12 [(Z)-5-(4-hydroxy-3-trifluoromethylbenzylidene)-3-(1-methylcyclohexylmethyl)thiazolidine-2,4-dione], which completely inhibited AR expression in LNCaP cells at low micromolar concentrations. This AR down-regulation led to growth inhibition in LNCaP cells through apoptosis induction. Moreover, the role of AR repression in the antiproliferative effect of compound 12 was validated by the differential inhibition of cell viability between androgen-responsive and androgen-nonresponsive cells.
[EN] ANDROGEN RECEPTOT-ABLATIVE AGENTS<br/>[FR] AGENTS ABLATIFS DU RÉCEPTEUR ANDROGÈNE
申请人:UNIV OHIO STATE RES FOUND
公开号:WO2009105621A1
公开(公告)日:2009-08-27
Compounds of the thiazolidinedione family are provided and shown to be effective androgen receptor ablative agents that can be used in methods of treating or preventing cancer or precancer, including prostate cancer. Also provided are methods of treating or preventing cancer by administering a therapeutically effective amount of one of the androgen receptor ablative agents to a subject in need of such treatment.
THIAZOLIDINEDIONE ENERGY RESTRICTION-MIMETIC AGENTS
申请人:Chen Ching-Shih
公开号:US20110086895A1
公开(公告)日:2011-04-14
A method of inhibiting glycolysis in a subject by administering a pharmaceutical composition including a thiazolidinedione derivative to the subject is described. The thiazolidinedione derivatives are effective energy restriction mimetic agents, and can therefore be used to treat or prevent cancer in a subject, treat metabolic disorder, or increase the longevity of a subject. Various thiazolidinedione derivatives are also suitable for activating adenosine phosphate-activated protein kinase or inhibiting IL-6 expression.
Compounds of the thiazolidinedione family are provided and shown to be effective androgen receptor ablative agents that can be used in methods of treating or preventing cancer or precancer, including prostate cancer. Also provided are methods of treating or preventing cancer by administering a therapeutically effective amount of one of the androgen receptor ablative agents to a subject in need of such treatment.
Thiazolidinedione energy restriction-mimetic agents
申请人:Chen Ching-Shih
公开号:US08383656B2
公开(公告)日:2013-02-26
A method of inhibiting glycolysis in a subject by administering a pharmaceutical composition including a thiazolidinedione derivative to the subject is described. The thiazolidinedione derivatives are effective energy restriction mimetic agents, and can therefore be used to treat or prevent cancer in a subject, treat metabolic disorder, or increase the longevity of a subject. Various thiazolidinedione derivatives are also suitable for activating adenosine phosphate-activated protein kinase or inhibiting IL-6 expression.
Thiazolidinedione compounds and pharmaceutically acceptable salts thereof are described. The compounds can be used in methods of treating cancer in a subject by administering to the subject a therapeutically effective amount of the compound. The compounds can also be used in methods of inhibiting glucose uptake in a cell by contacting the cell with the compound.