Endocycle-related tubular cell hypertrophy and progenitor proliferation recover renal function after acute kidney injury.

Abstract:

:Acute kidney injury (AKI) is considered largely reversible based on the capacity of surviving tubular cells to dedifferentiate and replace lost cells via cell division. Here we show by tracking individual tubular cells in conditional Pax8/Confetti mice that kidney function is  recovered after AKI despite substantial tubular cell loss. Cell cycle and ploidy analysis upon AKI in conditional Pax8/FUCCI2aR mice and human biopsies identify endocycle-mediated hypertrophy of tubular cells. By contrast, a small subset of Pax2+ tubular progenitors enriches via higher stress resistance and clonal expansion and regenerates necrotic tubule segments, a process that can be enhanced by suitable drugs. Thus,  renal functional recovery upon AKI involves remnant tubular cell hypertrophy via endocycle and limited progenitor-driven regeneration that can be pharmacologically enhanced.

journal_name

Nat Commun

journal_title

Nature communications

authors

Lazzeri E,Angelotti ML,Peired A,Conte C,Marschner JA,Maggi L,Mazzinghi B,Lombardi D,Melica ME,Nardi S,Ronconi E,Sisti A,Antonelli G,Becherucci F,De Chiara L,Guevara RR,Burger A,Schaefer B,Annunziato F,Anders HJ,La

doi

10.1038/s41467-018-03753-4

subject

Has Abstract

pub_date

2018-04-09 00:00:00

pages

1344

issue

1

issn

2041-1723

pii

10.1038/s41467-018-03753-4

journal_volume

9

pub_type

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