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. 2021 Aug 28;385(2):345–354. doi: 10.1007/s00441-021-03513-9

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© The Author(s) 2021, corrected publication 2022

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Fig. 1 — Immune responses trigger parietal epithelial cell (PEC) activation. Both interstitial and circulating immune cells are able to produce mediators of PEC activation, which could lead to crescent formation