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











Base de dados
Intervalo de ano de publicação
1.
ACS Appl Bio Mater ; 7(5): 3414-3430, 2024 05 20.
Artigo em Inglês | MEDLINE | ID: mdl-38687465

RESUMO

We have semi-synthesized a natural product 7-acetylhorminone from crude extract of Premna obtusifolia (Indian headache tree), which is active against colorectal cancer after probation through computational screening methods as it passed through the set parameters of pharmacokinetics (most important nonblood-brain barrier permeant) and drug likeliness (e.g., Lipinski's, Ghose's, Veber's rule) which most other phytoconstituents failed to pass combined with docking with EGFR protein which is highly upregulated in the colorectal carcinoma cell. The structure of 7-acetylhorminone was confirmed by single crystal X-ray diffraction studies and 1H NMR, 13C NMR, and COSY studies. To validate the theoretical studies, first, in vitro experiments were carried out against human colorectal carcinoma cell lines (HCT116) which revealed the potent cytotoxic efficacy of 7-acetylhorminone and verified preliminary investigation. Second, the drugability of 7-acetylhorminone interaction with serum albumin proteins (HSA and BSA) is evaluated both theoretically and experimentally via steady-state fluorescence spectroscopic studies, circular dichroism, isothermal titration calorimetry, and molecular docking. In summary, this study reveals the applicability of 7-acetylhorminone as a potent drug candidate or as a combinatorial drug against colorectal cancer.


Assuntos
Neoplasias Colorretais , Soroalbumina Bovina , Humanos , Neoplasias Colorretais/tratamento farmacológico , Neoplasias Colorretais/metabolismo , Neoplasias Colorretais/patologia , Soroalbumina Bovina/metabolismo , Soroalbumina Bovina/química , Ensaios de Seleção de Medicamentos Antitumorais , Produtos Biológicos/química , Produtos Biológicos/farmacologia , Estrutura Molecular , Teste de Materiais , Materiais Biocompatíveis/química , Materiais Biocompatíveis/farmacologia , Antineoplásicos/farmacologia , Antineoplásicos/química , Células HCT116 , Proliferação de Células/efeitos dos fármacos , Simulação de Acoplamento Molecular , Sobrevivência Celular/efeitos dos fármacos , Albumina Sérica Humana/química , Albumina Sérica Humana/metabolismo
2.
J Phys Chem B ; 125(37): 10481-10493, 2021 09 23.
Artigo em Inglês | MEDLINE | ID: mdl-34498871

RESUMO

Amyloid aggregation is a pathological trait observed in many incurable and fatal neurodegenerative and metabolic diseases associated with misfolding and self-assembly of various proteins. Noncovalent interactions between these structural motifs and small molecules can, however, prevent this aggregation. Herein, five structurally different synthetic (Cz1-Cz4) and naturally occurring (Cz5, mahanimbine) fluorescent carbazole analogs are explored for their comparative amyloid aggregation inhibitory activities. Cz3 inhibited the amyloid deposition on the pancreatic ß-cells of diabetic mice. Moreover, Cz3 and Cz5 also showed efficacy as the fluorescent cell (MIN6) imaging agents. Further structural modifications of these carbazoles may lead to development of low-cost and non-toxic therapeutic agents for Type 2 diabetes and other amyloidosis-related diseases.


Assuntos
Amiloidose , Diabetes Mellitus Experimental , Diabetes Mellitus Tipo 2 , Amiloide , Amiloidose/tratamento farmacológico , Animais , Carbazóis/farmacologia , Diabetes Mellitus Tipo 2/tratamento farmacológico , Camundongos
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA