Journal
ONCOIMMUNOLOGY
Volume 11, Issue 1, Pages -Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/2162402X.2021.2009666
Keywords
Gastrointestinal; cancers; natural killer T cells
Categories
Funding
- Intramural Research of the NIH, National Cancer Institute [ZIAC-004020]
- iCURE Program of the NIH, National Cancer Institute
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Gastrointestinal cancers are a group of complex cancers that affect the digestive system. NKT cells, with their immunoregulatory properties, play a crucial role in tumor immunity and can have either anti-tumor or pro-tumor effects depending on the cytokine profile expressed and the type of GI cancer.
Gastrointestinal (GI) cancers represent a complex array of cancers that affect the digestive system. This includes liver, pancreatic, colon, rectal, anal, gastric, esophageal, intestinal and gallbladder cancer. Patients diagnosed with certain GI cancers typically have low survival rates, so new therapeutic approaches are needed. A potential approach is to harness the potent immunoregulatory properties of natural killer T (NKT) cells which are true T cells, not natural killer (NK) cells, that recognize lipid instead of peptide antigens presented by the non-classical major histocompatibility (MHC) molecule CD1d. The NKT cell subpopulation is known to play a vital role in tumor immunity by bridging innate and adaptive immune responses. In GI cancers, NKT cells can contribute to either antitumor or protumor immunity depending on the cytokine profile expressed and type of cancer. This review discusses the complexities of the role of NKT cells in liver, colon, pancreatic and gastric cancers with an emphasis on type I NKT cells.
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