Early treatment of HER2-amplified brain tumors with targeted NK-92 cells and focused ultrasound improves survival
Why this work is in the frame
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Bibliographic record
Abstract
BACKGROUND: Malignant brain tumors have a dismal prognosis, with residual tumor remaining after surgery necessitating adjuvant chemoradiotherapy. The blood-brain barrier hinders many chemotherapeutic agents, resulting in modest treatment efficacy. We previously demonstrated that targeted natural killer (NK)-92 cells could be delivered to desired regions of the brain using MRI-guided focused ultrasound and Definity microbubbles. Targeted NK-92 cells have advantages over many systemic therapies including their specific cytotoxicity to malignant cells (particularly those expressing the target antigen), ability to spare healthy cells, and being unaffected by efflux channels. METHODS: We investigated whether longitudinal treatments with targeted NK-92 cells, focused ultrasound, and microbubbles could slow tumor growth and improve survival in an orthotopic HER2-amplified rodent brain tumor model using a human breast cancer line as a prototype. The HER2 receptor, involved in cell growth and differentiation, is expressed by both primary and metastatic brain tumors. Breast cancers with HER2 amplification have a higher risk of CNS metastasis and poorer prognosis. RESULTS: Early intensive treatment with targeted NK-92 cells and ultrasound improved survival compared with biweekly treatments or either treatment alone. The intensive treatment paradigm resulted in long-term survival in 50% of subjects. CONCLUSIONS: Many tumor proteins could be exploited for targeted therapy with the NK-92 cell line; combined with the mounting safety evidence for transcranial ultrasound, these results may soon be translatable to a highly targeted treatment option for patients with brain tumors.
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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 it