Colorectal cancer (CRC) is the third deadliest cancer in the world, with a high incidence, aggressiveness, poor prognosis, and resistant to drugs. 5-fluorouracil (5-FU) is the most commonly used drug for the chemotherapeutic of CRC, however, CRC is resistant to 5-FU after a period of treatment. Therefore, there is an urgent need to explore the underlying molecular mechanisms of CRC resistance to 5-FU. In the present study, we found that the expression of PANX2 was increased in CRC tissues and metastatic tissues from the TCGA database. The K-M survival curve showed that the high expression of PANX2 was associated with poor cancer prognosis. GDSC database showed that the IC50 of 5-Fu in the PANX2 high expression group was significantly higher, and the results were verified in CRC cells. In vitro cell function and in vivo tumorigenesis experiments showed that PANX2 promoted CRC cell proliferation, clone formation, migration and tumorigenesis in vivo. WB result revealed that PANX2 may lead to resistance to 5-Fu in CRC by affecting the PI3K-AKT signaling pathway. Overall, PANX2 regulates CRC proliferation, clone formation, migration, and 5-Fu resistance by PI3K-AKT signaling pathway.
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| http://dx.doi.org/10.1016/j.yexcr.2024.114269 | DOI Listing |
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