Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 2 de 2
Filtrar
Mais filtros

Base de dados
Ano de publicação
Tipo de documento
Intervalo de ano de publicação
1.
Drug Metab Rev ; 53(2): 188-206, 2021 05.
Artigo em Inglês | MEDLINE | ID: mdl-33941024

RESUMO

As lead optimization efforts have successfully reduced metabolic liabilities due to cytochrome P450 (CYP)-mediated metabolism, there has been an increase in the frequency of involvement of non-CYP enzymes in the metabolism of investigational compounds. Although there have been numerous notable advancements in the characterization of non-CYP enzymes with respect to their localization, reaction mechanisms, species differences and identification of typical substrates, accurate prediction of non-CYP-mediated clearance, with a particular emphasis with the difficulties in accounting for any extrahepatic contributions, remains a challenge. The current manuscript comprehensively summarizes the recent advancements in the prediction of drug metabolism and the in vitro to in vitro extrapolation of clearance for substrates of non-CYP drug metabolizing enzymes.


Assuntos
Sistema Enzimático do Citocromo P-450 , Microssomos Hepáticos , Sistema Enzimático do Citocromo P-450/metabolismo , Humanos , Inativação Metabólica , Taxa de Depuração Metabólica , Microssomos Hepáticos/metabolismo
2.
Cancer Discov ; 8(4): 458-477, 2018 04.
Artigo em Inglês | MEDLINE | ID: mdl-29386193

RESUMO

Bromodomain and extra-terminal (BET) family proteins are key regulators of gene expression in cancer. Herein, we utilize BRD4 profiling to identify critical pathways involved in pathogenesis of chronic lymphocytic leukemia (CLL). BRD4 is overexpressed in CLL and is enriched proximal to genes upregulated or de novo expressed in CLL with known functions in disease pathogenesis and progression. These genes, including key members of the B-cell receptor (BCR) signaling pathway, provide a rationale for this therapeutic approach to identify new targets in alternative types of cancer. Additionally, we describe PLX51107, a structurally distinct BET inhibitor with novel in vitro and in vivo pharmacologic properties that emulates or exceeds the efficacy of BCR signaling agents in preclinical models of CLL. Herein, the discovery of the involvement of BRD4 in the core CLL transcriptional program provides a compelling rationale for clinical investigation of PLX51107 as epigenetic therapy in CLL and application of BRD4 profiling in other cancers.Significance: To date, functional studies of BRD4 in CLL are lacking. Through integrated genomic, functional, and pharmacologic analyses, we uncover the existence of BRD4-regulated core CLL transcriptional programs and present preclinical proof-of-concept studies validating BET inhibition as an epigenetic approach to target BCR signaling in CLL. Cancer Discov; 8(4); 458-77. ©2018 AACR.This article is highlighted in the In This Issue feature, p. 371.


Assuntos
Regulação Leucêmica da Expressão Gênica , Isoxazóis/uso terapêutico , Leucemia Linfocítica Crônica de Células B/tratamento farmacológico , Proteínas Nucleares/genética , Piridinas/uso terapêutico , Pirróis/uso terapêutico , Transdução de Sinais , Fatores de Transcrição/genética , Animais , Antineoplásicos/farmacologia , Antineoplásicos/uso terapêutico , Proteínas de Ciclo Celular , Linhagem Celular Tumoral , Proliferação de Células , Perfilação da Expressão Gênica , Humanos , Isoxazóis/farmacologia , Leucemia Linfocítica Crônica de Células B/genética , Leucemia Linfocítica Crônica de Células B/metabolismo , Leucemia Linfocítica Crônica de Células B/fisiopatologia , Camundongos , Camundongos SCID , Proteínas Nucleares/metabolismo , Piridinas/farmacologia , Pirróis/farmacologia , Fatores de Transcrição/metabolismo , Ensaios Antitumorais Modelo de Xenoenxerto
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA