Journal
PHARMACOLOGY & THERAPEUTICS
Volume 219, Issue -, Pages -Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.pharmthera.2020.107700
Keywords
Nutraceutical; Tumor; Tumor microenvironment; Immune system
Categories
Funding
- University of Rome Tor Vergata, Mission Sustainability (Codice Unico di Progetto (CUP)) [E81I18000330005]
- Sapienza program in MolecularMedicine
- Tor Vergata program in Tissue Engineering and Remodeling Biotechnologies for Body Functions
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Immune effector cells play a critical role in determining tumor growth outcomes in the tissue microenvironment during neoplastic progression. Nutraceuticals, identified as natural compounds that may impact health and disease statuses, show potential benefits as immunomodulators in cancer treatment with subtle cell-specific effects.
The occurrence of immune effector cells in the tissue microenvironment during neoplastic progression is critical in determining tumor growth outcomes. On the other hand, tumors may also avoid immune system-mediated elimination by recruiting immunosuppressive leukocytes and soluble factors, which coordinate a tumor microenvironment that counteracts the efficiency of the antitumor immune response. Checkpoint inhibitor therapy results have indicated a way forward via activation of the immune system against cancer. Widespread evidence has shown that different compounds in foods, when administered as purified substances, can act as immunomodulators in humans and animals. Although there is no universally accepted definition of nutraceuticals, the term identifies a wide category of natural compounds that may impact health and disease statuses and includes purified substances from natural sources, plant extracts, dietary supplements, vitamins, phytonutrients, and various products with combinations of functional ingredients. In this review, we summarize the current knowledge on the immunomodulatory effects of nutraceuticals with a special focus on the cancer microenvironment, highlighting the conceptual benefits or drawbacks and subtle cell-specific effects of nutraceuticals for envisioning future therapies employing nutraceuticals as chemoadjuvants. (C) 2020 Elsevier Inc. All rights reserved.
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