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TDO2 overexpression correlates with poor prognosis, cancer stemness, and resistance to cetuximab in bladder cancer. | LitMetric

AI Article Synopsis

Article Abstract

Background: Bladder cancer (BC) is the 10th most common cancer in the world. BC with muscle invasion results in a poor prognosis and is usually fatal. Cancer cell metabolism has an essential role in the development and progression of tumors. Expression of tryptophan 2,3-dioxygenase (TDO2) is associated with tumor progression and worse survival in some other cancers. However, no studies have been performed to uncover the biofunctional roles of TDO2 in BC.

Aim: This study aim to investigate the clinicopathologic significance of TDO2 in BC.

Methods And Results: TDO2 expression was evaluated by qRT-PCR and immunohistochemistry in an integrated analysis with the Cancer Genome Atlas (TCGA) and other published datasets. TDO2 overexpression was significantly associated with T classification, N classification, and M classification, tumor stage, recurrence, and basal type, and with the expression of CD44 and aldehyde dehydrogenase 1 (ALDH1) in BC. High TDO2 expression correlated with poor outcome of BC patients. Using BC cell lines with knockdown and forced expression of TDO2, we found that TDO2 was involved in the growth, migration, and invasiveness of BC cells. Moreover, TDO2 was found to be crucial for spheroid formation in BC cells. Importantly, TDO2 promoted BC cells resistance to cetuximab through integration of the EGFR pathway.

Conclusion: Our results indicate that TDO2 might take an essential part in BC progression and could be a potential marker for targeted therapy in BC.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8714553PMC
http://dx.doi.org/10.1002/cnr2.1417DOI Listing

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