Journal
CANCERS
Volume 15, Issue 23, Pages -Publisher
MDPI
DOI: 10.3390/cancers15235517
Keywords
colorectal adenocarcinoma; tumor marker; treatment response; chemotherapy; oxidative stress
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This study investigated the relationship between oxidative stress and treatment response in patients with metastatic colorectal cancer. The rate of change in reactive oxygen metabolite derivatives (d-ROM) was found to be a predictor of treatment response. This research is important for understanding the mechanisms of colorectal cancer treatment and guiding clinical practice.
Oxidative stress has been implicated in the development, proliferation, and metastasis of colorectal cancer, but few studies have considered how oxidative stress changes in relation to treatment response. In this study, we investigated whether the rate of change in reactive oxygen metabolite derivatives (d-ROM)-serum markers of oxidative stress-could predict treatment response in metastatic colorectal cancer. We enrolled 53 patients with metastatic colorectal cancer who were treated with 3 months of chemotherapy. We measured d-ROM levels and performed computed tomography before and after chemotherapy, and we examined the change in d-ROM levels for each anticancer treatment. Factors influencing the d-ROM ratio (post-treatment: pre-treatment levels) were examined using linear regression analysis. d-ROM levels decreased in patients showing a partial response (p < 0.001) and increased in those showing disease progression (p = 0.042). An increasing d-ROM ratio was associated with disease progression (regression coefficient: 0.416, 95% confidence interval: 0.279-0.555, p < 0.001). Our study indicates that d-ROM levels are useful markers of tumor progression and that the d-ROM ratio is useful for predicting treatment response in patients with metastatic colorectal cancer.
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