RESUMO
A series of 3-(hetero)aryl substituted 3-[(prop-2-ynyloxy)(thiophen-2-yl)methyl]pyridine derivatives were designed as potential anticancer agents. These compounds were conveniently prepared by using Pd/C-Cu mediated Sonogashira type coupling as a key step. Many of these compounds were found to be promising when tested for their in vitro anti-proliferative properties against six cancer cell lines. All these compounds were found to be selective towards the growth inhibition of cancer cells with IC50 values in the range of 0.9-1.7 µM (against MDA-MB 231 and MCF7 cells), comparable to the known anticancer drug doxorubicin.
Assuntos
Antineoplásicos/síntese química , Piridinas/química , Tiofenos/química , Antineoplásicos/química , Antineoplásicos/toxicidade , Sítios de Ligação , Carbono/química , Catálise , Domínio Catalítico , Linhagem Celular Tumoral , Proliferação de Células/efeitos dos fármacos , Cobre/química , Quinase 2 Dependente de Ciclina/química , Quinase 2 Dependente de Ciclina/metabolismo , Ensaios de Seleção de Medicamentos Antitumorais , Células HEK293 , Humanos , Células MCF-7 , Simulação de Acoplamento Molecular , Paládio/química , Piridinas/síntese química , Piridinas/toxicidade , Relação Estrutura-AtividadeRESUMO
Protein energy malnutrition and inflammation are common and usually concurrent in maintenance hemodialysis (MHD) patients. Carnitine, a small molecule involved in fatty acid metabolism, is significantly decreased in long-term HD patients. L-Carnitine supplementation may have potential benefits in improving dialysis-related disorders. However, there are conflicting reports with regard to the beneficial effects of L-Carnitine supplementation. Hence, the present study was carried out to evaluate the effect of L-Carnitine supplementation on lipid parameters, apoproteins and inflammatory and nutritional markers in HD patients. A total of 35 patients with end-stage renal disease, on MHD for a period of 2 to 5 years were recruited into the study. The study group consisted of 20 patients who received Carnitine supplementation intravenously three times a week after each HD session, at 1 g/dose, while the control group consisted of 15 patients without supplementation with L-Carnitine. Highly sensitive C-reactive protein (hsCRP), total protein, albumin, lipid profile and apoprotein AI and B were determined at baseline and at the end of the study. A significant decrease in the hsCRP levels was observed in the Carnitine-supplemented group (P < 0.05). However, no significant change was observed in the lipid parameters and nutritional markers in the Carnitine-supplemented group. In conclusion, the present study demonstrates the significant benefit of L-Carnitine supplementation on inflammatory status in MHD patients as noted by marked decrease in hsCRP levels in comparison with the control group.