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c-Kit+ cells that intercalate with crypt Lgr5+ cells are distinctively multipotent in colonic epithelium renewal and repair

Abstract

The colonic crypts are principally composed by Lgr5+ stem cells and deep crypt secretory (DCS) cells. c-Kit-expressing cells mark DCS cells and supply Wnt3, EGF, and Notch signals to support their neighboring crypt bottom-intermingled Lgr5+ cells. However, the role of c-Kit+ cells beyond supporting Lgr5+ cells in colonic epithelium remains unexplored. Here, we identify that c-Kit+ cells are a heterogeneous entity and possess stemness potency to differentiate into the entire spectrum of epithelial cells and renew the homeostatic colon. Intriguingly, c-Kit+ cells play a pivotal role in epithelium repair in mouse models of colitis when contemporary Lgr5+ cells are insufficient or absent. Depletion of c-Kit+ cells or inhibition of SCF/c-Kit signaling worsens, while supplementation of SCF alleviates colonic epithelium injury during colitis. Our findings unravel the fate and function of c-Kit+ cells in homeostatic colon and recovery during colonic epithelium injury which has translational implications for human inflammatory bowel diseases.

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Fig. 1: Single-cell expression survey of colonic epithelial cells.
Fig. 2: The lineage tracing of c-Kit+ cells in colonic epithelium.
Fig. 3: The proliferation and stemness of c-Kit+ cells are enhanced during colonic epithelium injury.
Fig. 4: The distinction between c-Kit+ cells and Lgr5+ cells during colonic epithelium renewal and repair.
Fig. 5: c-Kit+ cells ablation disrupts colonic epithelium renewal and delays repair during injury.
Fig. 6: Inhibition of c-Kit signaling delays colonic epithelium repair.
Fig. 7: SCF promotes colonic epithelium repair in irradiation-induced colitis.

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Funding

Science Foundation of Sichuan (No. 2023NSFSC1613, to Y.S.) Science Foundation of Sichuan (No. 2023NSFSC2627, to Q.X.) Postdoctoral Foundation of West China Hospital, Sichuan University (No. 2023HXBH020, to Q.X.) Sichuan Province Science and Technology Scheme - Key R & D Project (the second batch of provincial projects [Gaoxin District] in 2021-72).

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Contributions

Conceptualization: Y.S., W.H., and J.Y.; Data curation: Y.S., and Q.X.; Formal analysis: Y.S. and Q.X.; Funding acquisition: Y.S., and W.H.; Investigation: Q.X., Y.Z., L.J., Y. Zhou, S. Liu., and S.Li.; Methodology: Y.Zhou, Y.C., and Z.W.; Project administration: Q.X., Y.S., W.H., and J.Y.; Resources: R.M., Y.S., W.H., and J.Y.; Supervision: Y.S., W.H., and J.Y.; Validation: Q.X. and Y.Z.; Visualization: Q.X., and Y.S.; Writing – original draft: Q.X., L.J., Y.S., and W.H.; Writing – review & editing: Y.Z. and J.Y.

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Correspondence to Jiayin Yang, Wei Huang or Yujun Shi.

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Xu, Q., Zeng, Y., Jiang, L. et al. c-Kit+ cells that intercalate with crypt Lgr5+ cells are distinctively multipotent in colonic epithelium renewal and repair. Cell Death Differ 32, 1244–1258 (2025). https://doi.org/10.1038/s41418-025-01471-1

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