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“Stuck in the Middle with You”: intermediate cell states are not always in transition
Jennifer M.S. Sucre, … , A. Scott McCall, Jonathan A. Kropski
Jennifer M.S. Sucre, … , A. Scott McCall, Jonathan A. Kropski
Published November 15, 2023
Citation Information: J Clin Invest. 2023;133(22):e174633. https://doi.org/10.1172/JCI174633.
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Commentary

“Stuck in the Middle with You”: intermediate cell states are not always in transition

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Abstract

The era of single-cell multiomics has led to the identification of lung epithelial cells with features of both alveolar type 1 (AT1) and alveolar type 2 (AT2) pneumocytes, leading many to infer that these cells are a distinct cell type in the process of transitioning between AT2 and AT1 cells. In this issue of the JCI, Wang and colleagues demonstrated that many so-called “transitional cells” do not actually contribute to functional repair. The findings warrant a reimagining of these cells as existing in a nondirectional, intermediate cell state, rather than moving through a transitory process from one cell type to another. We look forward to further exploration of diverse cell state expression profiles and a more refined examination of hallmark gene function beyond population labeling.

Authors

Jennifer M.S. Sucre, A. Scott McCall, Jonathan A. Kropski

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