ArticleCell proliferation2003
Hypoxia-induced irreversible S-phase arrest involves down-regulation of cyclin A.
Article in Cell proliferation, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
7 citing papers in PubMed, 26 citations in OpenAlex.
- Spatial tumor evolution panorama of ovarian cancer.Cell reports. Medicine · 2026Article
- Cellular neighborhoods in cancer.Nature cancer · 2026Article
- AQB improves carboplatin sensitivity in endometrial cancer through dual DNA repair modulation: suppression of the p21-E2F1-RAD51 and ATF3-HDAC1-BRCA1 signaling.Cell death & disease · 2025Article
- Hypoxia Changes Energy Metabolism and Growth Rate in Non-Small Cell Lung Cancer Cells.Cancers · 2023Article
- Rhein Suppresses Colorectal Cancer Cell Growth by Inhibiting the mTOR Pathway In Vitro and In Vivo.Cancers · 2021Article
- DNA damage during reoxygenation elicits a Chk2-dependent checkpoint response.Molecular and cellular biology · 2006Article
- Role of interleukin-18 in modulation of oral carcinoma cell proliferation.Mediators of inflammation · 2006Article
Corrections and comments
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Authors and funding
6 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
We have studied hypoxia-induced cell cycle arrest in human cells where the retinoblastoma tumour suppressor protein (pRB) is either functional (T-47D cells) or abrogated by expression of the HPV18 E7 oncoprotein (NHIK 3025 cells). All cells in S phase are immediately arrested upon exposure to extreme hypoxia. During an 18-h extreme hypoxia regime, the cyclin A protein level is down-regulated in cells of both types when in S-phase, and, as we have previously shown, pRB re-binds in the nuclei of all T-47D cells (Amellem et al. 1996). Hence, pRB is not necessary for the down-regulation of cyclin A during hypoxia. However, our findings indicate that re-oxygenation cannot release pRB from its nuclear binding following this prolonged exposure. The result is permanent S-phase arrest even after re-oxygenation, and this is correlated with a complete and permanent down-regulation of cyclin A in the pRB functional T-47D cells. In contrast, both cell cycle arrest and cyclin A down-regulation in S phase are reversed upon re-oxygenation in non-pRB-functional NHIK 3025 cells after prolonged exposure to extreme hypoxia. Our results indicate that pRB is involved in permanent S-phase arrest and down-regulation of cyclin A after extreme hypoxia.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.