Abstract B82: Application of modulated electro-hyperthermia for the cellular target therapy in ovarian cancer cells.
Bibliographic record
Abstract
Abstract Background: Oncothermia as modulated electro-hyperthermia is an anti-cancer therapy that was approved by TUV-SUD in Germany, Health Canada in Canada, and Therapeutic Goods Administration in Australian. Oncothermia induces apoptosis via destroying the plasma membrane of cancer cells and leads to accumulation of heat-induced damages mostly in cells located in the tumor tissue while providing minimal damages to the surrounding normal tissue. Thus, oncothermia has recently become a potentially effective therapeutic tool for cancer. Methods: LabEHY-100, an oncothermia device from Oncotherm (Germany & Hungary), was used for all in vitro studies. Ovarian cells were exposed to thermal damage induced by LabEHY-100, and subsequently, the cancer cells were analyzed in terms of viability, levels of apoptosis, autophagic markers and cell cycle status. In addition, xenograft tumors which generated by OVCAR-3 and patients derived tumor, were exposed to thermal damage induced by LabEHY-100 after which the tumor progression was monitored. The efficacy of combination therapy using both oncothermia and 3-methyladenine (3-MA), an autophagy inhibitor, was assessed using crystal violet assay. Results: Our studies showed that oncothermia resulted in growth inhibition in ovarian cancer cell tested. Apoptotic markers such as cleaved caspase-3 and PARP were upregulated in cells exposed to oncothermia compared to the control cells exposed to hyperthermia. Oncothermia also led to reduction in the mass and the volume of the tumors in the mouse transplanted with xenografts derived from cancer cells and ovarian cancer patient tumors. FACS analysis showed that cell cycles of these cells were not disrupted by oncothermia. Still there was a significant increase in the number of sub-G1 population, which consisted of dying cells including apoptotic cells. However, the xenograft cells recovered from cellular damage even after inducing autophagy via oncothermia. Combined treatment with oncothermia and 3-MA, a autophagy inhibitor, was more effective in inhibiting cancer cell growth than treatment with each alone. Conclusion: Oncothermia can potentially be an effective therapy for ovarian cancer cells. Conflict of interest : We obtained funding and in vitro device for electro-hyperthermia from HOSPICARE. Co., Ltd. (Seoul, Republic of Korea). Citation Format: Wookyeom Yang, Doo Byung Chay, Hanbyoul Cho, Sunghoon Kim, Jinkyoung Kong, Geumseon Son, Jihui Choi, Kim Jae-hoon. Application of modulated electro-hyperthermia for the cellular target therapy in ovarian cancer cells. [abstract]. In: Proceedings of the AACR Special Conference on Advances in Ovarian Cancer Research: Exploiting Vulnerabilities; Oct 17-20, 2015; Orlando, FL. Philadelphia (PA): AACR; Clin Cancer Res 2016;22(2 Suppl):Abstract nr B82.
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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 | 0.003 | 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".