期刊
REDOX BIOLOGY
卷 42, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.redox.2021.101900
关键词
Cancer; Selenium; Iron; Copper; Zinc
资金
- German Research Foundation (DFG) [FOR 2558]
Cancer remains a major cause of death worldwide, and early diagnosis is critical for improved survival rates and treatment success. Studies have shown that cancer patients generally have elevated serum copper levels and diminished zinc levels, with inconsistent changes in selenium and iron levels depending on the type of cancer. Further research is needed to investigate whether these element concentrations can predict the survival probability of cancer patients.
Despite advances in cancer research, cancer is still one of the leading causes of death worldwide. An early diagnosis substantially increases the survival rate and treatment success. Thus, it is important to establish biomarkers which could reliably identify cancer patients. As cancer is associated with changes in the systemic trace element status and distribution, serum concentrations of selenium, iron, copper, and zinc could contribute to an early diagnosis. To test this hypothesis, case control studies measuring trace elements in cancer patients vs. matched controls were selected and discussed focusing on lung, prostate, breast, and colorectal cancer. Overall, cancer patients had elevated serum copper and diminished zinc levels, while selenium and iron did not show consistent changes for all four cancer types. Within the tumor tissue, mainly copper and selenium are accumulating. Whether these concentrations also predict the survival probability of cancer patients needs to be further investigated.
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