RESUMO
Retinoids have a dominant role in topical acne therapy and to date, only RARß and RARγ dual agonists have reached the market. Given the tissue distribution of RAR isoforms, it was hypothesized that developing RARγ -selective agonists could yield a new generation of topical acne treatments that would increase safety margins while maintaining the robust efficacy of previous drugs. Structural knowledge derived from the X-ray structure of known γ-selective CD437, suggested the design of a novel triaryl series of agonists which was optimized and ultimately led to the discovery of Trifarotene/CD5789.
Assuntos
Acne Vulgar/tratamento farmacológico , Desenho de Fármacos , Receptores do Ácido Retinoico/agonistas , Retinoides/farmacologia , Relação Dose-Resposta a Droga , Humanos , Simulação de Acoplamento Molecular , Estrutura Molecular , Retinoides/síntese química , Retinoides/química , Relação Estrutura-Atividade , Receptor gama de Ácido RetinoicoRESUMO
A series of squaramide-based hydroxamic acids were designed, synthesized and evaluated against human HDAC enzyme. Squaramides were found to be potent in the Hut78 cell line, but initially suffered from low solubility. Leads with improved solubility and metabolic profiles were shown to be class I, IIB and IV selective.
Assuntos
Antineoplásicos/farmacologia , Histona Desacetilase 1/antagonistas & inibidores , Histona Desacetilase 2/antagonistas & inibidores , Inibidores de Histona Desacetilases/farmacologia , Linfoma Cutâneo de Células T/tratamento farmacológico , Quinina/análogos & derivados , Neoplasias Cutâneas/tratamento farmacológico , Antineoplásicos/síntese química , Antineoplásicos/química , Apoptose/efeitos dos fármacos , Linhagem Celular Tumoral , Proliferação de Células/efeitos dos fármacos , Cristalografia por Raios X , Relação Dose-Resposta a Droga , Ensaios de Seleção de Medicamentos Antitumorais , Histona Desacetilase 1/metabolismo , Histona Desacetilase 2/metabolismo , Inibidores de Histona Desacetilases/síntese química , Inibidores de Histona Desacetilases/química , Humanos , Linfoma Cutâneo de Células T/metabolismo , Linfoma Cutâneo de Células T/patologia , Modelos Moleculares , Estrutura Molecular , Quinina/síntese química , Quinina/química , Quinina/farmacologia , Neoplasias Cutâneas/metabolismo , Neoplasias Cutâneas/patologia , Solubilidade , Relação Estrutura-AtividadeRESUMO
Targeting the Tumor Necrosis Factor α signalling with antibodies has led to a revolution in the treatment of psoriasis. Locally inhibiting Tumor Necrosis Factor α Converting Enzyme (TACE or ADAM17) could potentially mimic those effects and help treat mild to moderate psoriasis, without the reported side effect of systemic TACE inhibitors. Efforts to identify new TACE inhibitors are presented here. Enzymatic SAR as well as ADME and physico-chemistry data are presented. This study culminated in the identification of potent enzymatic inhibitors. Suboptimal cellular activity of this series is discussed in the context of previously published results.