Abstract C155: External Qi of Yan Xin Qigong induces apoptosis and inhibits migration and invasion of estrogen-independent breast cancer cells by down-regulating Akt/NF-κB signaling
Bibliographic record
Abstract
Abstract Background: The concept External Qi of Qigong refers to the technology and ability of “Qi deployment” therapy and health preservation of traditional Chinese medicine (TCM). External Qi therapy of TCM has long been one of the medical practices in China. Long-term clinical observations and ongoing studies have shown positive effects of external Qi of Yan Xin Qigong (YXQ-EQ) on cancer patients. Recently, the molecular and cellular mechanisms underlying YXQ-EQ's antitumor effects have begun to be addressed. In the present study we investigated YXQ-EQ's effects on growth, migration, invasion and apoptosis of estrogen-independent breast cancer MDA-MB-231 cells and the underlying molecular mechanisms. Methods: Cytotoxic effects were evaluated by trypan blue exclusion assay, MTS assay and/or clonogenic assay. Apoptosis was assessed by DNA fragmentation and cleavage of caspases and poly(ADP-ribose) polymerase. Quantitative analysis of apoptosis and cell cycle distribution was carried out by flow cytometry. Migration and invasion assay was performed in Transwell Boyden chambers and Matrigel-coated Boyden chambers, respectively. NF-κB activity was determined by electrophoresis mobility shift assay. Akt phosphorylation and NF-κB target gene expression was evaluated by Western blot analysis. Results: YXQ-EQ treatment of MDA-MB-231 cells induced a time-dependent reduction in viability, clonogenic growth inhibition, and apoptosis. Furthermore, YXQ-EQ blocked migration and invasion of MDA-MB-231 cells. Biochemically, YXQ-EQ markedly inhibited constitutive and EGF-induced Akt phosphorylation. YXQ-EQ also substantially repressed NF-κB activity, resulting in decreased expression of antiapoptotic Bcl-2, Bcl-XL, XIAP and survivin proteins. Conclusion: Our findings suggest that YXQ-EQ may induce apoptosis and inhibit migration and invasion of MDA-MB-231 cells through the repression of Akt/NF-κB signaling. Citation Information: Mol Cancer Ther 2009;8(12 Suppl):C155.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".