A Wnt-producing niche drives proliferative potential and progression in lung adenocarcinoma
RNA Therapeutics Institute; Program in Molecular Medicine; Department of Molecular, Cell and Cancer Biology
Biochemistry, Biophysics, and Structural Biology | Cell and Developmental Biology | Genetics and Genomics | Therapeutics
The heterogeneity of cellular states in cancer has been linked to drug resistance, cancer progression and the presence of cancer cells with properties of normal tissue stem cells. Secreted Wnt signals maintain stem cells in various epithelial tissues, including in lung development and regeneration. Here we show that mouse and human lung adenocarcinomas display hierarchical features with two distinct subpopulations, one with high Wnt signalling activity and another forming a niche that provides the Wnt ligand. The Wnt responder cells showed increased tumour propagation ability, suggesting that these cells have features of normal tissue stem cells. Genetic perturbation of Wnt production or signalling suppressed tumour progression. Small-molecule inhibitors targeting essential posttranslational modification of Wnt reduced tumour growth and markedly decreased the proliferative potential of lung cancer cells, leading to improved survival of tumour-bearing mice. These results indicate that strategies for disrupting pathways that maintain stem-like and niche cell phenotypes can translate into effective anti-cancer therapies.
DOI of Published Version
Nature. 2017 May 18;545(7654):355-359. doi: 10.1038/nature22334. Epub 2017 May 10. Link to article on publisher's site
Tammela, Tuomas; Xue, Wen; and Jacks, Tyler, "A Wnt-producing niche drives proliferative potential and progression in lung adenocarcinoma" (2017). RNA Therapeutics Institute Publications. 10.