Involvement of apoptosis-inducing factor during dolichyl monophosphate-induced apoptosis in U937 cells

Tunicamycin enhances tumor necrosis factor-related apoptosis-inducing ligand-induced apoptosis in human prostate cancer cells.

Death receptor 5 (DR5/TRAIL-R2) is an apoptosis-inducing membrane receptor for tumor necrosis factor-related apoptosis-inducing ligand (TRAIL/Apo2L). In this study, we showed that tunicamycin, a naturally occurring antibiotic, is a potent enhancer of TRAIL-induced apoptosis through up-regulation of DR5 expression. Tunicamycin significantly sensitized PC-3, androgen-independent human prostate ca...

Atromentin-induced apoptosis in human leukemia U937 cells.

In the course of screening for apoptotic substances that induce apoptosis in human leukemia U937 cells, a fungal strain, F000487, which exhibits potent inducible activity, was selected. The active compound was purified from an ethyl acetate extract of the microorganism by Sep-pak C18 column chromatography and HPLC, and was identified as atromentin by spectroscopic methods. This compound induced...

Melatonin prevents H2O2-induced apoptosis in U937 cells

Apoptosis-inducing factor

Although the seminal paper by Kerr, Wyllie and Currie (Kerr et al., 1972), who coined the word ‘apoptosis’, stated that only nuclei but not cytoplasmic organelles would undergo major modifications in the dying cell, recent evidence suggests that no cellular compartment is spared (Ferri and Kroemer, 2001). Mitochondria are particularly affected early during the apoptotic process, and they are no...

Roscovitine sensitizes leukemia and lymphoma cells to tumor necrosis factor-related apoptosis-inducing ligand-induced apoptosis.

Tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) is a death ligand with selective antitumor activity. However, many primary tumors are TRAIL resistant. Previous studies reported that roscovitine, a cyclin-dependent kinase inhibitor, sensitized various solid cancer cells to TRAIL. We show that roscovitine and TRAIL demonstrate synergistic cytotoxicity in hematologic malignant cell...