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Tryptophan and tumor immunity
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Chi ZHANG, Shi-jia YAN, Guo-hui WAN*
Acta Pharmaceutica Sinica | 2022, 57(9) : 2580 - 2589
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Acta Pharmaceutica Sinica | 2022, 57(9): 2580-2589
Special Reports: Therapeutic interventions and strategies for cancer immunotherapy
Tryptophan and tumor immunity
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Chi ZHANG, Shi-jia YAN, Guo-hui WAN*
Affiliations
  • School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou 510006, China
Published: 2022-09-12 doi: 10.16438/j.0513-4870.2022-0528
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As an essential amino acid, tryptophan (Trp) has various physiological functions and is of great significance in the metabolic process of tumors. In the human body, tryptophan is mainly transformed through kynurenine metabolic pathway, which not only promotes the inherent malignant properties of tumor cells, but also leads to immune-suppressive tumor microenvironment. Changes in tryptophan metabolism often occur in tumors, accompanied by abnormal gene expression of tryptophan-related enzymes, among which indoleamine 2, 3-bioxygenase (IDO)-related gene expression and tryptophan 2, 3-dioxygenase (TDO)-related gene changes are the most significant. A large number of clinical trials on IDO inhibitors, TDO inhibitors and combination therapy have been carried out. This paper reviewed the tryptophan metabolic pathway, regulation of IDO (TDO), kynurenine (KYN) and other related genes in tumor cells, and outlined the development of therapeutic schedule targeting tryptophan-related genes. The new progress provides new ideas for the further exploration of tumor treatment options.

tumor  /  tryptophan metabolism  /  regulation of gene expression  /  intestinal flora  /  IDO1/TDO2-KYN-AhR  /  inhibitor
Chi ZHANG, Shi-jia YAN, Guo-hui WAN. Tryptophan and tumor immunity[J]. Acta Pharmaceutica Sinica, 2022 , 57 (9) : 2580 -2589 . DOI: 10.16438/j.0513-4870.2022-0528
Year 2022 volume 57 Issue 9
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Article Info
doi: 10.16438/j.0513-4870.2022-0528
  • Receive Date:2022-04-30
  • Online Date:2025-12-24
  • Published:2022-09-12
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  • Received:2022-04-30
  • Revised:2022-05-30
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    School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou 510006, China
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表12种不同金属材料的力学参数

Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)

Genus
种数
Number of
species
占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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