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Potential of Targeting TDO2 as the Lung Adenocarcinoma Treatment
Er Jin1, Zhidong Yin2, Xiuxiu Zheng1
1Department of Respiratory Medicine, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou 310002 Zhejiang Province, China.
Abstract:
Tryptophan catabolism plays an important role in the metabolic reconnection in cancer cells to support special demands of tumor initiation and progression. The catabolic product of the tryptophan pathway, kynurenine, has the capability of suppressing the immune reactions of tumor cells. In this study, we conducted internal and external cohort studies to reveal the importance of tryptophan 2,3-dioxygenase (TDO) for lung adenocarcinoma (LUAD). Our study further demonstrated that the TDO2 expression was associated with the proliferation, survival, and invasion of LUAD cells, and targeting TDO2 for LUAD tumors could be a potential therapeutic strategy.
Insights
Tryptophan metabolism is key in lung adenocarcinoma (LUAD). Targeting TDO2, an enzyme in this pathway, may offer a new therapeutic strategy for LUAD tumors by impacting cancer cell proliferation and immune suppression.
Area of Science:
- Biochemistry
- Oncology
- Immunology
Background:
- Tryptophan catabolism is crucial for cancer cell metabolism, supporting tumor growth and progression.
- Kynurenine, a tryptophan metabolite, can suppress anti-tumor immune responses.
- The role of tryptophan 2,3-dioxygenase (TDO) in lung adenocarcinoma (LUAD) requires further investigation.
Purpose of the Study:
- To investigate the significance of TDO in LUAD.
- To explore the association between TDO2 expression and LUAD cell behavior.
- To evaluate TDO2 as a potential therapeutic target for LUAD.
Main Methods:
- Internal and external cohort studies were performed.
- TDO2 expression levels were analyzed in relation to LUAD characteristics.
- The impact of targeting TDO2 on LUAD cells was assessed.
Main Results:
- TDO2 expression is important in LUAD.
- TDO2 expression correlates with LUAD cell proliferation, survival, and invasion.
- Targeting TDO2 demonstrates potential as a therapeutic strategy for LUAD.
Conclusions:
- Tryptophan 2,3-dioxygenase (TDO2) plays a significant role in lung adenocarcinoma.
- TDO2 expression influences key aspects of LUAD progression, including proliferation, survival, and invasion.
- Inhibiting TDO2 presents a promising therapeutic avenue for treating LUAD.
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