Abstract
Cancer is a leading cause of death worldwide and a major burden on developing and less developed countries of the world with limited resources for prevention and effective treatment of cancer. Although cancer is multifactorial in origin, various epidemiological and experimental studies suggest that chronic inflammation has an important role in all stages of cancer, from initiation to progression and even survival of the patient. Inflammatory products like cytokines, chemokines, leucocytes, prostaglandins, cyclooxygenase, reactive oxygen and nitrogen species, metalloproteinase induce genetic and epigenetic changes in normal cells damaging its DNA, inhibiting its repair, altering transcription factors, preventing apoptosis, and stimulating angiogenesis, and thus resulting in carcinogenesis. Thus, these inflammatory mediators have a potential role to become cancer biomarkers for all stages of cancer as many of them can be measured in a cost-effective manner. However, large scale prospective trials are required to validate these potential cancer biomarkers. Nonetheless, a transition from potential to practical utilization of these markers will be an effective tool for the amelioration of cancer burden and mortality in a resource limited setting.
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