ArticleScientific reports2024
Cytosolic N-terminal formyl-methionine deformylation derives cancer stem cell features and tumor progression.
Article in Scientific reports, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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Who cites it
2 citing papers in PubMed.
- Stage-Specific carcinogenic mechanisms and intervention strategies for pksArchives of microbiology · 2026Review
- N-terminal formylmethionine as a degron and a specific signal in proteostasis and stress adaptation.Experimental & molecular medicine · 2026Review
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Authors and funding
5 authors.
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Abstract
Eukaryotic cells can synthesize formyl-methionine (fMet)-containing proteins not only in mitochondria but also in the cytosol to some extent. Our previous study revealed substantial upregulation of N-terminal (Nt)-fMet-containing proteins in the cytosol of SW480 colorectal cancer cells. However, the functional and pathophysiological implications remain unclear. Here, we demonstrated that removal of the Nt-formyl moiety of Nt-fMet-containing proteins (via expressing Escherichia coli PDF peptide deformylase) resulted in a dramatic increase in the proliferation of SW480 colorectal cancer cells. This proliferation coincided with the acquisition of cancer stem cell features, including reduced cell size, enhanced self-renewal capacity, and elevated levels of the cancer stem cell surface marker CD24 and pluripotent transcription factor SOX2. Furthermore, deformylation of Nt-fMet-containing proteins promoted the tumorigenicity of SW480 colorectal cancer cells in an in vivo xenograft mouse model. Taken together, these findings suggest that cytosolic deformylation has a tumor-enhancing effect, highlighting its therapeutic potential for cancer treatment.
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