* The GPR171 pathway suppresses T cell activation and limits antitumor immunity.
- The recently identified G-protein-coupled receptor GPR171 and its ligand BigLEN are thought to regulate food uptake and anxiety. Though GPR171 is commonly used as a T cell signature gene in transcriptomic studies, its potential role in T cell immunity has not been explored. Here we show that GPR171 is transcribed in T cells and its protein expression is induced upon antigen stimulation. The neuropeptide ligand BigLEN interacts with GPR171 to suppress T cell receptor-mediated signalling pathways and to inhibit T cell proliferation. Loss of GPR171 in T cells leads to hyperactivity to antigen stimulation and GPR171 knockout mice exhibit enhanced antitumor immunity. Blockade of GPR171 signalling by an antagonist promotes antitumor T cell immunity and improves immune checkpoint blockade therapies. Together, our study identifies the GPR171/BigLEN axis as a T cell checkpoint pathway that can be modulated for cancer immunotherapy.
=>【病名】がん, 悪性腫瘍(しゅよう), がん腫, 社会悪, 癌
Overview of noun cancer
The noun cancer has 5 senses (first 1 from tagged texts)
1. (15) cancer, malignant neoplastic disease -- (any malignant growth or tumor caused by abnormal
and uncontrolled cell division; it may spread to other parts of the body through the lymphatic
system or the blood stream)
2. Cancer, Crab -- ((astrology) a person who is born while the sun is in Cancer)
3. Cancer -- (a small zodiacal constellation in the northern hemisphere; between Leo and Gemini)
4. Cancer, Cancer the Crab, Crab -- (the fourth sign of the zodiac; the sun is in this sign from
about June 21 to July 22)
5. Cancer, genus Cancer -- (type genus of the family Cancridae)
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