The interplay between innate and adaptive immunity regulates cancer development

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Abstract
There is increasing clinical and experimental evidence that inflammation and cancer are causally linked. Much progress has been made in understanding how inflammatory cells contribute to cancer development; however, it is still largely unknown which molecular mechanisms are responsible for initiation and maintenance of chronic inflammation associated with developing neoplasms. This review will discuss how the adaptive and innate immune systems interact during physiological and chronic inflammation, with a focus on studies revealing new insights into the role of adaptive immune cells as important regulators of chronic inflammation-associated carcinogenesis. We will speculate on whether current knowledge about the dysregulated interplay between adaptive and innate immunity during chronic inflammatory disorders might be useful in understanding and targeting the underlying mechanisms of chronic inflammation-associated neoplastic progression.