Underlying causes and therapeutic targeting of the inflammatory tumor microenvironment Journal Article


Authors: Comen, E. A.; Bowman, R. L.; Kleppe, M.
Article Title: Underlying causes and therapeutic targeting of the inflammatory tumor microenvironment
Abstract: Historically, the link between chronic inflammation and cancer has long been speculated. Only more recently, pre-clinical and epidemiologic data as well as clinical evidence all point to the role of the tumor microenvironment as inextricably connected to the neoplastic process. The tumor microenvironment (TME), a complex mix of vasculature, inflammatory cells, and stromal cells is the essential "soil" helping to modulate tumor potential. Increasingly, evidence suggests that chronic inflammation modifies the tumor microenvironment, via a host of mechanisms, including the production of cytokines, pro-inflammatory mediators, angiogenesis, and tissue remodeling. Inflammation can be triggered by a variety of different pressures, such as carcinogen exposure, immune dysfunction, dietary habits, and obesity, as well as genetic alterations leading to oncogene activation or loss of tumor suppressors. In this review, we examine the concept of the tumor microenvironment as related to both extrinsic and intrinsic stimuli that promote chronic inflammation and in turn tumorigenesis. Understanding the common pathways inherent in an inflammatory response and the tumor microenvironment may shed light on new therapies for both primary and metastatic disease. The concept of personalized medicine has pushed the field of oncology to drill down on the genetic changes of a cancer, in the hopes of identifying individually targeted agents. Given the complexities of the tumor microenvironment, it is clear that effective oncologic therapies will necessitate targeting not only the cancer cells, but their dynamic relationship to the tumor microenvironment as well. © 2018 Comen, Bowman and Kleppe.
Keywords: oncogenes; stroma; microenvironment; chronic inflammation; tumor suppressors; clonal hematopoiesis; anti-inflammatory drugs
Journal Title: Frontiers in Cell and Developmental Biology
Volume: 6
ISSN: 2296-634X
Publisher: Frontiers Media S.A.  
Date Published: 2018-06-12
Start Page: 56
Language: English
DOI: 10.3389/fcell.2018.00056
PROVIDER: scopus
PMCID: PMC6005853
PUBMED: 29946544
DOI/URL:
Notes: Review -- Export Date: 1 August 2018 -- Source: Scopus
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  1. Elizabeth Comen
    72 Comen
  2. Maria Kleppe
    41 Kleppe
  3. Robert L Bowman
    52 Bowman