Cryopreserved human alternatively activated macrophages promote resolution of acetaminophen-induced liver injury in mouse

Abstract Acute liver failure is a rapidly progressing, life-threatening condition most commonly caused by an overdose of acetaminophen (paracetamol). The antidote, N-acetylcysteine (NAC), has limited efficacy when liver injury is established. If acute liver damage is severe, liver failure can rapidl...

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Main Authors: Maria Elena Candela, Melisande Addison, Rhona Aird, Tak-Yung Man, Jennifer A. Cartwright, Candice Ashmore-Harris, Alastair M. Kilpatrick, Philip J. Starkey Lewis, Anna Drape, Mark Barnett, Donna Mitchell, Colin McLean, Neil McGowan, Marc Turner, James W. Dear, Stuart J. Forbes
Format: Article
Language:English
Published: Nature Portfolio 2025-01-01
Series:npj Regenerative Medicine
Online Access:https://doi.org/10.1038/s41536-025-00393-3
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author Maria Elena Candela
Melisande Addison
Rhona Aird
Tak-Yung Man
Jennifer A. Cartwright
Candice Ashmore-Harris
Alastair M. Kilpatrick
Philip J. Starkey Lewis
Anna Drape
Mark Barnett
Donna Mitchell
Colin McLean
Neil McGowan
Marc Turner
James W. Dear
Stuart J. Forbes
author_facet Maria Elena Candela
Melisande Addison
Rhona Aird
Tak-Yung Man
Jennifer A. Cartwright
Candice Ashmore-Harris
Alastair M. Kilpatrick
Philip J. Starkey Lewis
Anna Drape
Mark Barnett
Donna Mitchell
Colin McLean
Neil McGowan
Marc Turner
James W. Dear
Stuart J. Forbes
author_sort Maria Elena Candela
collection DOAJ
description Abstract Acute liver failure is a rapidly progressing, life-threatening condition most commonly caused by an overdose of acetaminophen (paracetamol). The antidote, N-acetylcysteine (NAC), has limited efficacy when liver injury is established. If acute liver damage is severe, liver failure can rapidly develop with associated high mortality rates. We have previously demonstrated that alternatively, activated macrophages are a potential therapeutic option to reverse acute liver injury in pre-clinical models. In this paper, we present data using cryopreserved human alternatively activated macrophages (hAAMs)—which represent a potential, rapidly available treatment suitable for use in the acute setting. In a mouse model of APAP-induced injury, peripherally injected cryopreserved hAAMs reduced liver necrosis, modulated inflammatory responses, and enhanced liver regeneration. hAAMs were effective even when administered after the therapeutic window for NAC. This cell therapy approach represents a potential treatment for APAP overdose when NAC is ineffective because liver injury is established.
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issn 2057-3995
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publishDate 2025-01-01
publisher Nature Portfolio
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series npj Regenerative Medicine
spelling doaj-art-558266651d8d4e43b0d143a19e0bd3c02025-01-26T12:19:04ZengNature Portfolionpj Regenerative Medicine2057-39952025-01-0110111510.1038/s41536-025-00393-3Cryopreserved human alternatively activated macrophages promote resolution of acetaminophen-induced liver injury in mouseMaria Elena Candela0Melisande Addison1Rhona Aird2Tak-Yung Man3Jennifer A. Cartwright4Candice Ashmore-Harris5Alastair M. Kilpatrick6Philip J. Starkey Lewis7Anna Drape8Mark Barnett9Donna Mitchell10Colin McLean11Neil McGowan12Marc Turner13James W. Dear14Stuart J. Forbes15Centre for Regenerative Medicine, The Institute for Regeneration and Repair, University of EdinburghCentre for Regenerative Medicine, The Institute for Regeneration and Repair, University of EdinburghCentre for Regenerative Medicine, The Institute for Regeneration and Repair, University of EdinburghCentre for Regenerative Medicine, The Institute for Regeneration and Repair, University of EdinburghCentre for Regenerative Medicine, The Institute for Regeneration and Repair, University of EdinburghCentre for Regenerative Medicine, The Institute for Regeneration and Repair, University of EdinburghCentre for Regenerative Medicine, The Institute for Regeneration and Repair, University of EdinburghCentre for Regenerative Medicine, The Institute for Regeneration and Repair, University of EdinburghScottish National Blood Transfusion Service (SNBTS), The Jack Copland Centre, Heriot-Watt Research ParkScottish National Blood Transfusion Service (SNBTS), The Jack Copland Centre, Heriot-Watt Research ParkScottish National Blood Transfusion Service (SNBTS), The Jack Copland Centre, Heriot-Watt Research ParkScottish National Blood Transfusion Service (SNBTS), The Jack Copland Centre, Heriot-Watt Research ParkScottish National Blood Transfusion Service (SNBTS), The Jack Copland Centre, Heriot-Watt Research ParkScottish National Blood Transfusion Service (SNBTS), The Jack Copland Centre, Heriot-Watt Research ParkCentre for Precision Cell Therapy for the Liver, Lothian Health Board, Queens Medical Research InstituteCentre for Regenerative Medicine, The Institute for Regeneration and Repair, University of EdinburghAbstract Acute liver failure is a rapidly progressing, life-threatening condition most commonly caused by an overdose of acetaminophen (paracetamol). The antidote, N-acetylcysteine (NAC), has limited efficacy when liver injury is established. If acute liver damage is severe, liver failure can rapidly develop with associated high mortality rates. We have previously demonstrated that alternatively, activated macrophages are a potential therapeutic option to reverse acute liver injury in pre-clinical models. In this paper, we present data using cryopreserved human alternatively activated macrophages (hAAMs)—which represent a potential, rapidly available treatment suitable for use in the acute setting. In a mouse model of APAP-induced injury, peripherally injected cryopreserved hAAMs reduced liver necrosis, modulated inflammatory responses, and enhanced liver regeneration. hAAMs were effective even when administered after the therapeutic window for NAC. This cell therapy approach represents a potential treatment for APAP overdose when NAC is ineffective because liver injury is established.https://doi.org/10.1038/s41536-025-00393-3
spellingShingle Maria Elena Candela
Melisande Addison
Rhona Aird
Tak-Yung Man
Jennifer A. Cartwright
Candice Ashmore-Harris
Alastair M. Kilpatrick
Philip J. Starkey Lewis
Anna Drape
Mark Barnett
Donna Mitchell
Colin McLean
Neil McGowan
Marc Turner
James W. Dear
Stuart J. Forbes
Cryopreserved human alternatively activated macrophages promote resolution of acetaminophen-induced liver injury in mouse
npj Regenerative Medicine
title Cryopreserved human alternatively activated macrophages promote resolution of acetaminophen-induced liver injury in mouse
title_full Cryopreserved human alternatively activated macrophages promote resolution of acetaminophen-induced liver injury in mouse
title_fullStr Cryopreserved human alternatively activated macrophages promote resolution of acetaminophen-induced liver injury in mouse
title_full_unstemmed Cryopreserved human alternatively activated macrophages promote resolution of acetaminophen-induced liver injury in mouse
title_short Cryopreserved human alternatively activated macrophages promote resolution of acetaminophen-induced liver injury in mouse
title_sort cryopreserved human alternatively activated macrophages promote resolution of acetaminophen induced liver injury in mouse
url https://doi.org/10.1038/s41536-025-00393-3
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