Ovarian cancer is the most common cause of death from gynecologic malignancy. Deregulation of p53 and/or p73-associated apoptotic pathways contribute to the platinum-based resistance in ovarian cancer. NOXA, a pro-apoptotic BH3-only protein, is identified as a transcription target of p53 and/or p73. In this study, we found that genetic variants of Bcl-2 proteins exist among cisplatin-sensitive ...

Tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) has been shown to induce apoptosis in prostate cancer cells through DR4 and DR5 death receptors, but not in normal prostate cells, which do not express these receptors. Therefore, TRAIL has excellent potential to be a selective prostate cancer therapeutic agent with minimal toxic side effects. However, prostate cancer cells, as man...

The precise role of the microenvironment on tumor growth is poorly understood. Whereas the tumor is in constant competition with the surrounding tissue, little is known about the mechanics of this interaction. Using a novel experimental procedure, we study quantitatively the effect of an applied mechanical stress on the long-term growth of a spheroid cell aggregate. We observe that a stress of ...

Ovarian cancer has the highest mortality rate of all gynecological cancers with a high recurrence rate. It is important to understand the nature of recurring cancer cells to terminally eliminate ovarian cancer. The winged helix transcription factor Forkhead box P1 (FOXP1) has been reported to function as either oncogene or tumor-suppressor in various cancers. In the current study, we show that ...

Colon cancer (CRC) is one of the most common types in world. In this study, effects Tarantula cubensis alcoholic extract (TCAE) and Capecitabine CRC were investigated. Wistar albino rats divided into eight groups with 12 animals each group: untreated healthy groups, treated TCAE or Capecitabine, both Capecitabine. Azoxymethane was used all groups. administered to relevant starting 15th week. Al...

Previously we reported that proteasome inhibitors were able to overcome Bcl-2-mediated protection from apoptosis. Here we show that inhibition of the proteasome activity in Bcl-2-overexpressing cells accumulates the proapoptotic Bax protein to mitochondria/cytoplasm, where it interacts to Bcl-2 protein. This event was followed by release of mitochondrial cytochrome c into the cytosol and activa...

Introduction: Cancer can be defined as an illness of reformed gene expression. There are numerous agents affecting expression and altering cellular activities. Nanotechnology has offered the possibility modulating tumor suppressor genes’ expression, improving kinetics gene-targeted therapeutics, simplifying drug delivery to tumors across bio-complexes.Methods: Gene expressions caspase3, 8 9, Ba...

Purpose: To investigate the influence of elemene on growth and apoptotic changes in bladder cancer cells, involvement phosphatase tensin homologous protein (PTEN)-serine/threonine kinase (Akt) signal pathway process.
 Methods: Human cell line SV-HUC-1 human T24 were randomly assigned to blank control group groups. Protein expression levels apoptosis-related factors (Bcl-2, Bax, caspase-3] ...

Bax is a homologue of Bcl-2 that promotes apoptosis. Bax protein levels were assessed by immunohistochemical methods in primary tumors de rived from 119 women with metastatic breast cancer. These patients had received combination chemotherapy either with a once a month dosage schedule or in 4 weekly divided doses. The BAX immunostaining results were retrospectively compared with overall surviva...