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CCL5 and GLUT1 define leader cells in collective invasion of colorectal cancer
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DOI：10.1002/path.70100.png)
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Abstract
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Invasion and metastasis in multiple solid tumors are promoted by collective invasion which is organized by leader and follower cells. Yet in colorectal cancer (CRC), biomarkers and mechanisms that specify leader cells remain undefined. Here we identify biomarkers of leader cells and elucidate how they drive CRC collective invasion and metastasis. Using a 3D photoconvertible CRC spheroid model, we isolated leader and follower cells. Transcriptomic, functional and in vivo assays show that GLUT1, PLOD2, and CCL5 in leader cells are indispensable for collective invasion. CCL5 activates PI3K/AKT signaling to up-regulate GLUT1 and PLOD2 in leader cells. Moreover, GLUT1 and CCL5 could serve as specific biomarkers for leader cells in CRC collective invasion, and their co-expression correlates with poor prognosis. Pharmacologic inhibition of GLUT1 and CCL5-CCR5 impairs collective invasion. CCL5 and GLUT1 may define the leader cells and are required for CRC collective invasion as potential key regulators of metabolic shifts and collagen deposition. © 2026 The Author(s). The Journal of Pathology published by John Wiley & Sons Ltd on behalf of The Pathological Society of Great Britain and Ireland.
Keywords:
collective invasion
leader cells
CCL5
GLUT1
colorectal cancer
3D photoconvertible spheroid model
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