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The aim of this study is to clarify the effect of oxidative stress on monosodium urate (MSU)-mediated apoptosis of renal cells. Quantitative real-time polymerase chain reaction and immunoblotting for Bcl-2, caspase-9, caspase-3, iNOS, cyclooxygenase-2 (COX-2), interleukin-1β (IL-1β), IL-18, TNF receptor-associated factor-6 (TRAF-6), and mitogen-activated protein kinases were performed on human embryonic...
Traditional Chinese medicine is recently emerged as anti-cancer therapy or adjuvant with reduced side-effects and improved quality of life. In the present study, an active ingredient, 1,6,7-trihydroxyxanthone (THA), derived from Goodyera oblongifolia was found to strongly suppress cell growth and induce apoptosis in liver cancer cells. MicroRNAs are a group of small non-coding RNAs that regulate gene...
Diabetes is a pandemic disease with a higher occurrence in minority populations. The molecular mechanism to initiate diabetes-associated retinal angiogenesis remains largely unknown. We propose an inflammatory pathway of diabetic retinopathy in which macrophages in the diabetic eye provide TGFβ to retinal endothelial cells (REC) in the retinal microvasculature. In response to TGFβ, REC synthesize...
Ht-2 is a novel oxaliplatin derivative previously identified in a compound screen performed by our laboratory. In the present study, we evaluated the antitumor effects of Ht-2 and investigated its underlying mechanism of action. Ht-2 exhibited anti-tumor activity and demonstrated low cytotoxicity in normal cells in vitro. The IC50 of Ht-2 was 2–10-fold lower than oxaliplatin in all of the cancer cell...
Alzheimer’s disease (AD) and cancer proceed via one or more common molecular mechanisms: a metabolic shift from oxidative phosphorylation to glycolysis—corresponding to the activation of the Warburg effect—occurs in both diseases. The findings reported in this paper demonstrate that, in the early phase of apoptosis, glucose metabolism is enhanced, i.e. key proteins which internalize and metabolize...
Apoptosis has a role in many medical disorders and treatments; hence, its non-invasive evaluation is one of the most riveting research topics. Currently annexin V is used as gold standard for imaging apoptosis. However, several drawbacks, including high background, slow body clearance, make it a suboptimum marker for apoptosis imaging. In this study, we radiolabeled the recently identified histone...
L929 fibroblastoma cells (L929-A) and L929 fibrosarcoma cells (L929-N) are different cell lines that are commonly used to study the cytotoxicity of tumor necrosis factor alpha (TNFα). TNFα has been reported to induce necrosis in both of these cell lines. However, comparing the TNFα-induced cell death in these two cell lines, we found that, unlike the L929-N cells that show typical RIP3-dependent necrosis,...
High-risk neuroblastoma often develops resistance to high-dose chemotherapy. The mTOR signaling cascade is frequently deregulated in human cancers and targeting mTOR signaling sensitizes many cancer types to chemotherapy. Here, using a panel of neuroblastoma cell lines, we found that the mTOR inhibitor INK128 showed inhibitory effects on both anchorage-dependent and independent growth of neuroblastoma...
Transcriptional activation of pro-apoptotic genes in response to cytotoxic stimuli is a conserved feature of the cell death pathway in metazoans. However, understanding the extent of this conservation in insects has been limited by the lack of known pro-apoptotic genes in non-drosophilids. Recently, we described the pro-apoptotic genes, Asrpr and Ashid, from the tephritid, Anastrepha suspensa, that...
Dichloroacetate (DCA) is a metabolic reprogramming agent that reverses the Warburg effect, causing cancer cells to couple glycolysis to oxidative phosphorylation. This has been shown to induce apoptosis and reduce the growth of various types of cancer but not normal cells. Colorectal cancer cells HCT116, HCT116 p53−/−, and HCT116 Bax−/−, were treated with DCA in vitro. Response to treatment was determined...
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