Schedule-dependent cytotoxicity of SN-38 in p53 wild-type and mutant colon adenocarcinoma cell lines
1999
Effects of SN-38 on Colon Cancer Cells
publication
Evidence: moderate
Author Information
Author(s): Poele R H te, Joel S P
Primary Institution: Department of Medical Oncology, Barry Reed Oncology Laboratory, Saint Bartholomew’s Hospital
Hypothesis
How does SN-38 affect colon adenocarcinoma cell lines with different p53 statuses?
Conclusion
SN-38 is more effective in inducing apoptosis in colon cancer cells with mutant p53 compared to those with wild-type p53.
Supporting Evidence
- HT29 cells showed rapid progression through the cell cycle and increased apoptosis with SN-38 exposure.
- LS174T cells had a smaller increase in apoptosis and primarily experienced cell cycle arrest.
- Cell cycle arrest in LS174T cells was independent of drug concentration.
- SN-38 cytotoxicity was generally greater in cells with mutant p53.
Takeaway
This study found that a drug called SN-38 works better at killing certain cancer cells that have a broken p53 gene than those with a working one.
Methodology
The study investigated the effects of SN-38 on colon adenocarcinoma cell lines with wild-type and mutant p53 by measuring apoptosis and cell cycle arrest.
Statistical Information
P-Value
P < 0.001
Statistical Significance
p<0.001
Digital Object Identifier (DOI)
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