Rat Got1 (Aspartate aminotransferase, cytoplasmic) ELISA Kit (DEIA-FN569)

Regulatory status: For research use only, not for use in diagnostic procedures.

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serum, plasma, cell culture supernatants, tissue homogenate
Species Reactivity
Intended Use
For quantitative detection of Rat Got1 (Aspartate aminotransferase, cytoplasmic) in serum, plasma, tissue homogenates and other biological fluids.
Contents of Kit
1. 96-well strip plate (Dismountable), 1 plate
2. Lyophilized Standard, 2 vials
3. Sample/Standard dilution buffer, 20 mL
4. Biotin-detection antibody (Concentrated), 120 uL
5. Antibody dilution buffer, 10 mL
6. HRP-Streptavidin Conjugate(SABC), 120 uL
7. SABC dilution buffer, 10 mL
8. TMB substrate, 10 mL
9. Stop solution, 10 mL
10. Wash buffer (25X), 30 mL
11. Plate Sealer, 5 pieces
12. Product Manual, 1 copy
Store the unopened product at 2 - 8 °C. Do not use past expiration date.
Intra-Assay: CV<8%
Inter-Assay: CV<10%
Detection Range
3.12-200 mIU/mL
1.875 mIU/mL
Standard Curve


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Glutamine-utilizing transaminases are a metabolic vulnerability of TAZ/YAP-activated cancer cells


Authors: Yang, Chih-Sheng; Stampouloglou, Eleni; Kingston, Nathan M.; Zhang, Liye; Monti, Stefano; Varelas, Xaralabos

The transcriptional regulators TAZ and YAP (TAZ/YAP) have emerged as pro-tumorigenic factors that drive many oncogenic traits, including induction of cell growth, resistance to cell death, and activation of processes that promote migration and invasion. Here, we report that TAZ/YAP reprogram cellular energetics to promote the dependence of breast cancer cell growth on exogenous glutamine. Rescue experiments with glutamine-derived metabolites suggest an essential role for glutamate and -ketoglutarate (AKG) in TAZ/YAP-driven cell growth in the absence of glutamine. Analysis of enzymes that mediate the conversion of glutamate to AKG shows that TAZ/YAP induce glutamic-oxaloacetic transaminase (GOT1) and phosphoserine aminotransferase (PSAT1) expression and that TAZ/YAP activity positively correlates with transaminase expression in breast cancer patients. Notably, we find that the transaminase inhibitor aminooxyacetate (AOA) represses cell growth in a TAZ/YAP-dependent manner, identifying transamination as a potential vulnerable metabolic requirement for TAZ/YAP-driven breast cancer.

Targeted Inhibition of Glutamine-Dependent Glutathione Metabolism Overcomes Death Resistance Induced by Chronic Cycling Hypoxia


Authors: Matschke, Johann; Riffkin, Helena; Klein, Diana; Handrick, Rene; Luedemann, Lutz; Metzen, Eric; Shlomi, Tomer; Stuschke, Martin; Jendrossek, Verena

Aims: Tumor hypoxia is a major biological factor causing poor patient outcome. Evidence is increasing that improved protection against reactive oxygen species (ROS) participates in therapy resistance of chronically hypoxic cancer cells. We aimed at characterizing the relevance of improved ROS defense for radiation resistance of cancer cells with tolerance to cycling anoxia/re-oxygenation stress ("anoxia-tolerant") and at designing rational treatment strategies for overcoming the resulting therapy resistance by targeting the underlying mechanisms identified in an in vitro model. Results: We demonstrate that chronic exposure of NCH-H460 lung adenocarcinoma, DU145 prostate cancer, and T98G glioblastoma cells to cycling anoxia/re-oxygenation stress induced upregulation of the aspartate-aminotransferase glutamic-oxaloacetic transaminase (GOT1), particularly in RAS-driven anoxia-tolerant NCI-H460 cells. Altered glutamine utilization of the anoxia-tolerant cancer cells contributed to the observed decrease in cellular ROS levels, the increase in cellular glutathione levels, and improved cell survival on ROS-inducing treatments, including exposure to ionizing radiation. Importantly, targeting glutamine-dependent antioxidant capacity or glutathione metabolism allowed us to hit anoxia-tolerant cancer cells and to overcome their increased resistance to radiation-induced cell death. Targeting glutathione metabolism by Piperlongumine also improved the radiation response of anoxia-tolerant NCI-H460 cells in vivo. Innovation: Improved antioxidant capacity downstream of up-regulated GOT1-expression is a characteristic of anoxia-tolerant cancer cells and is predictive for a specific vulnerability to inhibition of glutamine utilization or glutathione metabolism, respectively. Conclusion: Unraveling the molecular alterations underlying improved ROS defense of anoxia-tolerant cancer cells allows the design of rational strategies for overcoming radiation resistance caused by tumor cell heterogeneity in hypoxic tumors.

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