Title:TRIP13 Activates Glycolysis to Promote Cell Stemness and
Strengthen Doxorubicin Resistance of Colorectal Cancer Cells
Volume: 31
Issue: 22
Author(s): Guangyi Liu, Huan Wang, Rui Ran, Yicheng Wang and Yang Li*
Affiliation:
- Department of Gastrointestinal Surgery, The Second Affiliated Hospital of Chongqing Medical University,
Chongqing, 400010, China
Keywords:
TRIP13, glycolysis, stemness, colorectal cancer, doxorubicin resistance, bioinformatics analyses.
Abstract:
Background: Chemotherapy resistance is one of the main causes of clinical
chemotherapy failure. Current cancer research explores the drug resistance mechanism
and new therapeutic targets. This work aims to elucidate the mechanism of thyroid hormone
receptor interactor 13 (TRIP13) affecting doxorubicin (DOX) resistance in colorectal
cancer (CRC).
Methods: Bioinformatics analyses were employed to clarify TRIP13 expression in CRC
tissues and predict the correlation of the TRIP13 enrichment pathway with glycolysis-related
genes and stemness index mRNAsi. Quantitative real-time polymerase chain reaction
and western blot were adopted to analyze the expression of TRIP13 and glycolysis-
related genes. Cell Counting Kit-8 was utilized to determine the cell viability and
IC50 value. Western blot was employed to measure the expression of stemness-related
factors. Cell function assays were performed to detect cells' sphere-forming ability and
glycolysis level. Animal models were constructed to determine the effects of TRIP13 expression
on CRC tumor growth.
Results: TRIP13 was significantly overexpressed in CRC, concentrated in the glycolysis
signaling pathway, and positively correlated with stemness index mRNAsi. High expression
of TRIP13 facilitated DOX resistance in CRC. Further mechanistic studies revealed
that overexpression of TRIP13 could promote cell stemness through glycolysis, which
was also confirmed in animal experiments.
Conclusion: TRIP13 was highly expressed in CRC, which enhanced the DOX resistance
of CRC cells by activating glycolysis to promote cell stemness. These findings offer
new insights into the pathogenesis of DOX resistance in CRC and suggest that
TRIP13 may be a new target for reversing DOX resistance in CRC.