Dual apoptotic effect of Xrel3 c‐Rel/NF‐κB homolog in human cervical cancer cells
Why this work is in the frame
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Bibliographic record
Abstract
Cervical cancer is one of the most common cancers affecting a woman's reproductive organs. Despite its frequency and recurrence, the death rate has been declining over the past 40 years, due to early detection and treatment. In a previous report [Shehata Marlene, Shehata Marian, Shehata Fady, Pater Alan. Apoptosis effects of Xrel3 c-Rel/Nuclear factor-kappa B homolog in human cervical cancer cells. Cell Biology International, in press], we studied the role of the NF-kappaB gene family in HeLa human cervical cancer cells, using the Xrel3 c-Rel homologue of Xenopus laevis. These results showed that the expression of Xrel3/c-Rel slowed cell growth, consistent with an upregulated expression of the cell cycle inhibitor p21 and the activated poly(ADP-ribose) polymerase (PARP) apoptosis effector. However, in this report, we examined more apoptotic and anti-apoptotic factors acting upstream and downstream in apoptosis pathways after cisplatin treatment of HeLa cervical cancer cells. After 1 microM cisplatin treatment, Xrel3 had an anti-apoptotic effect, based on significantly lower levels of apoptotic proteins, including caspase-8, caspase-3 and p21. Anti-apoptotic BAG-1 isoforms were upregulated. After 5 microM cisplatin treatment, expression of HeLa Xrel3 had an apoptotic effect, based on significantly increased expression of the cell cycle inhibitor p21 and apoptotic proteins, including cleaved PARP, caspase-8, and caspase-3. However, anti-apoptotic Bcl-2 and Bcl-X(L) were elevated and the cell cycle regulator cyclin D1 was slightly upregulated with both 1 and 5 microM cisplatin treatment. The HPV E6 oncoprotein showed no significant changes. These results support previous conclusions on the potential anti-apoptotic effects of c-Rel/NF-kappaB in mild stress environments, as opposed to the apoptotic effects associated with high stress conditions [Lake BB, Ford R, Kao KR. Xrel3 is required for head development in Xenopus laevis. Development 2001; 128(2), 263-73.]. Thus, c-Rel/NF-kappaB may potentially be of clinical significance in chemotherapy.
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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