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1.
Steroids ; 124: 29-34, 2017 08.
Artigo em Inglês | MEDLINE | ID: mdl-28549802

RESUMO

5α-Reductase is a key enzyme responsible for dihydrotestosterone biosynthesis and has been recognized as an important target for discovering new drugs against benign prostatic hyperplasia (BPH). In this study, a series of novel steroidal androst-3,5-diene-3-carboxylic acids have been designed and synthesized. Biological evaluations were performed on their 5α-reductase inhibitory activities by both in vitro enzyme inhibition assay and in vivo by prostate weighing method. Results showed that most of them displayed excellent 5α-reductase inhibitory potency. Detailed evaluation indicated that most of the compounds displayed slightly higher inhibition potency towards type 2 isozyme. Among all the compounds, 16a was found to be the most potential inhibitor with the IC50 of 0.25µM and 0.13µM against type 1 and 2 isozymes respectively. In vivo 5a-reductase inhibitory evaluation of 16a also showed a more significant reduction effect (p<0.001) in rat prostate weight than epristeride. Furthermore, the results of in silico ADME study indicated that compound 16a exhibited good pharmacokinetic properties. Thus, 16a could serve as promising lead candidates for further study.


Assuntos
Inibidores de 5-alfa Redutase/síntese química , Inibidores de 5-alfa Redutase/farmacologia , Ácidos Carboxílicos/síntese química , Ácidos Carboxílicos/farmacologia , Colestenona 5 alfa-Redutase/metabolismo , Desenho de Fármacos , Inibidores de 5-alfa Redutase/química , Inibidores de 5-alfa Redutase/farmacocinética , Animais , Ácidos Carboxílicos/química , Ácidos Carboxílicos/farmacocinética , Técnicas de Química Sintética , Simulação por Computador , Masculino , Ratos
2.
Bioorg Med Chem Lett ; 27(12): 2668-2673, 2017 06 15.
Artigo em Inglês | MEDLINE | ID: mdl-28460819

RESUMO

The estrogen receptor (ER) has played an important role in breast cancer development and progression and is a central target for anticancer drug discovery. In order to develop novel selective ERα modulators (SERMs), we designed and synthesized 18 novel 3-aryl-4-anilino-2H-chromen-2-one derivatives based on previously reported lead compounds. The biological results indicated that most of the compounds presented potent ERα binding affinity and possessed better anti-proliferative activities against MCF-7 and Ishikawa cell lines than the positive control tamoxifen. The piperidyl substituted compounds such as 16d and 18d demonstrated strong ERα binding affinities and excellent anti-proliferative activities respectively. Compound 18d displayed the most potent ERα binding affinity with RBA value of 2.83%, while 16d exhibited the best anti-proliferative activity against MCF-7 cells with IC50 value of 4.52±2.47µM. Further molecular docking studies were also carried out to investigate binding pattern of the newly synthesized compounds with ERα. All these results together with the structure-activity relationships (SARs) indicated that these 3-aryl-4-anilino-2H-chromen-2-one derivatives with basic side chain could serve as promising leads for further optimization as novel SERMs.


Assuntos
Antineoplásicos/farmacologia , Cromonas/farmacologia , Desenho de Fármacos , Receptor alfa de Estrogênio/antagonistas & inibidores , Simulação de Acoplamento Molecular , Antineoplásicos/síntese química , Antineoplásicos/química , Linhagem Celular Tumoral , Proliferação de Células/efeitos dos fármacos , Cromonas/síntese química , Cromonas/química , Relação Dose-Resposta a Droga , Ensaios de Seleção de Medicamentos Antitumorais , Receptor alfa de Estrogênio/metabolismo , Humanos , Células MCF-7 , Estrutura Molecular , Relação Estrutura-Atividade
3.
Bioorg Med Chem Lett ; 27(4): 867-874, 2017 02 15.
Artigo em Inglês | MEDLINE | ID: mdl-28110871

RESUMO

Various 3-substituted 4-anilino-coumarin derivatives have been designed, synthesized and their anti-proliferative properties have been studied. The in vitro cytotoxicity screening was performed against MCF-7, HepG2, HCT116 and Panc-1 cancer cell lines by MTT assay. Most of the synthesized compounds exhibited comparable anti-proliferative activity to the positive control 5-Fluorouracil against these four tested cancer cell lines. Among the different substituents at C-3 position of coumarin scaffold, 3-trifluoroacetyl group showed the most promising results. Especially, compounds 33d (IC50=16.57, 5.45, 4.42 and 5.16µM) and 33e (IC50=20.14, 6.71, 4.62 and 5.62µM) showed excellent anti-proliferative activities on MCF-7, HepG2, HCT116 and Panc-1 cell lines respectively. In addition, cell cycle analysis and apoptosis activation revealed that 33d induced G2/M phase arrest and apoptosis in MCF-7 cells in a dose-dependent manner. Low toxicity of compounds 33d and 33e was observed against human umbilical vein endothelial cells (HUVECs), suggesting their acceptable safety profiles in normal cells. Furthermore, the results of in silico ADME studies indicated that both 33d and 33e exhibited good pharmacokinetic properties.


Assuntos
Antineoplásicos/síntese química , Cumarínicos/química , Desenho de Fármacos , Antineoplásicos/farmacologia , Apoptose/efeitos dos fármacos , Linhagem Celular Tumoral , Proliferação de Células/efeitos dos fármacos , Cumarínicos/farmacologia , Dano ao DNA/efeitos dos fármacos , Ensaios de Seleção de Medicamentos Antitumorais , Pontos de Checagem da Fase G2 do Ciclo Celular/efeitos dos fármacos , Células HCT116 , Células Hep G2 , Células Endoteliais da Veia Umbilical Humana , Humanos , Pontos de Checagem da Fase M do Ciclo Celular/efeitos dos fármacos , Células MCF-7 , Relação Estrutura-Atividade
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