肺泡干细胞超越气体交换功能:追踪AT2细胞显示其可转分化驱动细支气管再生
Alveolar stem cells go beyond making gas-exchange cells to repair damaged airways
一项追踪肺泡2型(AT2)细胞的研究显示,气道损伤后AT2细胞可在肺不同区域间迁移并转变为细支气管细胞,帮助修复受损气道。该研究由Liu, K.等人完成,论文题为《Alveolar stem cells transdifferentiate to drive bronchiolar regeneration》,发表于Nature(2026)。
- RESEARCH BRIEFINGS
- 14 October 2026
Alveolar type 2 (AT2) cells are the stem cells of the lung’s air sacs and are responsible for maintaining alveolar structure and gas exchange. A study that tracked AT2 cells shows that, after injury to the airway, they can also migrate between lung compartments and become bronchiolar cells to help repair damaged airways.
This is a summary of: Liu, K. et al. Alveolar stem cells transdifferentiate to drive bronchiolar regeneration. Nature https://doi.org/10.1038/s41586-026-11127-w (2026).
doi: https://doi.org/10.1038/d41586-026-03085-0
‘Expert opinion’ is published under a CC BY 4.0 licence; Figure 1 is published under a CC BY-NC-ND 4.0 licence.
References
Kim, C. F. B. et al. Cell 121, 823–835 (2005).
Liu, Q. et al. Nature Genet. 51, 728–738 (2019).
Kathiriya, J. J., Brumwell, A. N., Jackson, J. R., Tang, X. & Chapman, H. A. Cell Stem Cell 26, 346–358 (2020).
Liu, K. et al. Cell 187, 2428–2445 (2024).
Barkauskas, C. E. et al. J. Clin. Invest. 123, 3025–3036 (2013).
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来源:Nature 干细胞主题 · nature.com
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