Celastrol attenuates the invasion and migration and augments the anticancer effects of bortezomib in a xenograft mouse model of multiple myeloma
MetadataShow full item record
© 2018 Shanmugam, Ahn, Lee, Kannaiyan, Mustafa, Manu, Siveen, Sethi, Chng and Kumar. Several lines of evidence have demonstrated that deregulated activation of NF-?B plays a pivotal role in the initiation and progression of a variety of cancers including multiple myeloma (MM). Therefore, novel molecules that can effectively suppress deregulated NF-?B upregulation can potentially reduce MM growth. In this study, the effect of celastrol (CSL) on patient derived CD138+ MM cell proliferation, apoptosis, cell invasion, and migration was investigated. In addition, we studied whether CSL can potentiate the apoptotic effect of bortezomib, a proteasome inhibitor in MM cells and in a xenograft mouse model. We found that CSL significantly reduced cell proliferation and enhanced apoptosis when used in combination with bortezomib and upregulated caspase-3 in these cells. CSL also inhibited invasion and migration of MM cells through the suppression of constitutive NF-?B activation and expression of downstream gene products such as CXCR4 and MMP-9. Moreover, CSL when administered either alone or in combination with bortezomib inhibited MM tumor growth and decreased serum IL-6 and TNF-a levels. Overall, our results suggest that CSL can abrogate MM growth both in vitro and in vivo and may serve as a useful pharmacological agent for the treatment of myeloma and other hematological malignancies.
Showing items related by title, author, creator and subject.
Schaefer, Rainer (2008)At present, most cancers are treated with surgery, radiotherapy and chemotherapy, used alone or in combination. Surgery and radiotherapy are the primary treatment modalities after early detection of cancers and they ...
Analysis of candidate genes within the 3p14-p22 region of the human genome for association with bone mineral density phenotypesMullin, Benjamin H (2011)Previous studies have identified the 3p14-p22 chromosomal region as a quantitative trait locus for bone mineral density (BMD). The overall aim of this thesis is to identify the gene or genes from this region that are ...
Elevated levels of branched-chain amino acids have little effect on pancreatic islet cells, but L-arginine impairs function through activation of the endoplasmic reticulum stress responseMullooly, N.; Vernon, W.; Smith, D.; Newsholme, Philip (2014)New Findings - What is the central question of this study?: Recent studies have demonstrated strong correlations between circulating branched-chain amino acid (AA) levels and insulin resistance, a predictor of susceptibility ...