5-FU promotes stemness of colorectal cancer via p53-mediated WNT/β-catenin pathway activation

Yong Hee Cho, Eun Ji Ro, Jeong Su Yoon, Tomohiro Mizutani, Dong Woo Kang, Jong Chan Park, Tae Il Kim, Hans Clevers, Kang Yell Choi

Onderzoeksoutput: Bijdrage aan tijdschriftArtikelpeer review

163 Citaten (Scopus)


5-Fluorouracil (5-FU) remains the first-line treatment for colorectal cancer (CRC). Although 5-FU initially de-bulks the tumor mass, recurrence after chemotherapy is the barrier to effective clinical outcomes for CRC patients. Here, we demonstrate that p53 promotes WNT3 transcription, leading to activation of the WNT/β-catenin pathway in ApcMin/+/Lgr5EGFP mice, CRC patient-derived tumor organoids (PDTOs) and patient-derived tumor cells (PDCs). Through this regulation, 5-FU induces activation and enrichment of cancer stem cells (CSCs) in the residual tumors, contributing to recurrence after treatment. Combinatorial treatment of a WNT inhibitor and 5-FU effectively suppresses the CSCs and reduces tumor regrowth after discontinuation of treatment. These findings indicate p53 as a critical mediator of 5-FU-induced CSC activation via the WNT/β-catenin signaling pathway and highlight the significance of combinatorial treatment of WNT inhibitor and 5-FU as a compelling therapeutic strategy to improve the poor outcomes of current 5-FU-based therapies for CRC patients.

Originele taal-2Engels
TijdschriftNature Communications
Nummer van het tijdschrift1
StatusGepubliceerd - 1 dec. 2020
Extern gepubliceerdJa


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