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Cited by 205

The DOI matches its Crossref record; 4 of the 4 references it cites were found in a registry or an index.

Autophagy promotes resistance to photodynamic therapy-induced apoptosis selectively in colorectal cancer stem-like cells

Open access
Wei, Ming-Feng, Chen, Min-Wei, Chen, Ke-Cheng, Lou, Pei-Jen, Lin, Susan Yun-Fan, Hung, Shih-Chieh, Hsiao, Michael, Yao, Cheng-Jung, Shieh, Ming-Jium·2014·Autophagy

Abstract

Recent studies have indicated that cancer stem-like cells (CSCs) exhibit a high resistance to current therapeutic strategies, including photodynamic therapy (PDT), leading to the recurrence and progression of colorectal cancer (CRC). In cancer, autophagy acts as both a tumor suppressor and a tumor promoter. However, the role of autophagy in the resistance of CSCs to PDT has not been reported. In this study, CSCs were isolated from colorectal cancer cells using PROM1/CD133 (prominin 1) expression, which is a surface marker commonly found on stem cells of various tissues. We demonstrated that PpIX-mediated PDT induced the formation of autophagosomes in PROM1/CD133(+) cells, accompanied by the upregulation of autophagy-related proteins ATG3, ATG5, ATG7, and ATG12. The inhibition of PDT-induced autophagy by pharmacological inhibitors and silencing of the ATG5 gene substantially triggered apoptosis of PROM1/CD133(+) cells and decreased the ability of colonosphere formation in vitro and tumorigenicity in vivo. In conclusion, our results revealed a protective role played by autophagy against PDT in CSCs and indicated that targeting autophagy could be used to elevate the PDT sensitivity of CSCs. These findings would aid in the development of novel therapeutic approaches for CSC treatment.

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Crossref · 10.4161/auto.28679

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Metadata

Authors
Wei, M.-F., Chen, M.-W., Chen, K.-C., Lou, P.-J., Lin, S. Y.-F., Hung, S.-C., Hsiao, M., Yao, C.-J., & Shieh, M.-J.
Venue
Autophagy
Published
2014-04-29
Volume
10
Issue
7
Pages
1179-1192
ISSN
  • 1554-8627 (ISSN-L)
  • 1554-8635
OpenAlex
W2034050926
Cited by
205
References
4
FWCI
13.26
Type
journal article
Language
en
Open access
hybrid

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