Previous studies have shown that activation of NF-kappaB can inhibit apoptosis induced by a number of stimuli. It is also known that TNF-related apoptosis-inducing ligand (TRAIL) can activate NF-kappaB through the death receptors TRAIL-R1 and TRAIL-R2, and decoy receptor TRAIL-R4. In view of these findings, we have investigated the extent to which activation of NF-kappaB may account for the var...

Since melanocytes are the origin of melanoma and some skin disorders such as melasma, they are important cells from the perspective of medicinal chemistry. Therefore, a medication that can simultaneously overcome these diseases will be a successful potential therapeutic agent. Arbutin with phenolic structure is a powerful natural anti-tyrosinase agent. Hence, the phenolic structure of this drug...

In recent years, immunotherapy for advanced melanoma has been gaining increased attention. The efficacy of anti-cytotoxic T-lymphocyte antigen 4 antibodies, anti-programmed cell death 1 antibodies, and the BRAF(V600E) kinase inhibitor has been proven in metastatic melanoma. At the same time, adoptive cell transfer has significant effects against metastatic melanoma; however, it is difficult to ...

Because thrombin-treated tumor cell-induced metastasis increases tumor nodule volume(12) greater than nodule number, we studied the effect of thrombin on tumor cell growth in vitro and in vivo (murine B16F10 melanoma, human HCT8 colon carcinoma, DU145 prostate carcinoma). Tumor cell growth was measured after 3 to 7 days in 1% fetal calf serum (FCS) + RPMI 1640. We found that, whereas relatively...

Melanoma remains a significant and rising health burden. Currently most melanoma patients are treated with immunotherapies, but almost half do not respond to, or relapse from the treatments. One of main contributors to immunotherapy resistance is an immunosuppressive cell population, called myeloid-derived suppressive cells (MDSCs). Therefore, enhancing efficacy immunotherapies by targeting MDS...

conclusions the increasing cell toxicity, apoptosis-inducing effects and decreasing telomerase activity may play an important role in the valproic acid and radiation mechanism. the current survey suggested that it is likely beneficial to combine valproic acid and gamma radiation to treat breast cancer. results combination of valproic acid and gamma radiation increased significantly cell toxicit...

Chloroquine (CQ) can induce cell death in a subset of cancer cell lines, and some melanoma cell lines are quite susceptible. Although it is well known that CQ impairs lysosomal function and can serve as an autophagy inhibitor, the molecular target of CQ and the subsequent cascade of events that lead to cell death are not fully understood. Recent evidence indicates that in melanoma cell lines, C...

current therapies for breast cancer are often limited by short-term efficacy due to the emergence of drug resistance. there has been increased interest in the use of naturally occurring compounds with chemopreventive and chemotherapeutic effects in the treatment of cancers. saffron, dry stigmas crocus sativus l., used in iran as a spice, is known for its anticancer properties. in this study, th...

This study was an attempt to determine the effect of a selected anthracycline derivative, WP903, on apoptotic processes in human melanoma cells depending on intracellular concentrations of the compound, and to evaluate the significance of apoptosis induction for the cytotoxic effect of anthracycline antibiotics. It was found that the WP903, contrary to ADR (adriamycin) is a strong inducer of ap...

Subtraction hybridization identified melanoma differentiation-associated gene-7 (mda-7) as a gene induced during terminal differentiation in human melanoma cells. On the basis of structure, chromosomal localization and cytokine-like properties, mda-7 is classified as IL-24. Administration of mda-7/IL-24 by means of a replication-incompetent adenovirus (Ad.mda-7) induces apoptosis selectively in...