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Targeted erythrophagocyte reprogramming of Kupffer cells halts cancer immunotherapy associated liver toxicity [Multiplexed_CD40]

ABSTRACT: Targeted erythrophagocyte reprogramming of Kupffer cells halts cancer immunotherapy associated liver toxicity [Multiplexed_CD40]

PROVIDER: PRJNA837628 | ENA |

REPOSITORIES: ENA

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Targeted erythrophagocyte reprogramming of Kupffer cells halts cancer immunotherapy associated liver toxicity

Project description:Targeted erythrophagocyte reprogramming of Kupffer cells halts cancer immunotherapy associated liver toxicity

| PRJNA837625 | ENA

Targeted erythrophagocyte reprogramming of Kupffer cells halts cancer immunotherapy associated liver toxicity [Ter119 experiment]

Project description:Targeted erythrophagocyte reprogramming of Kupffer cells halts cancer immunotherapy associated liver toxicity [Ter119 experiment]

| PRJNA837627 | ENA

Targeted erythrophagocyte reprogramming of Kupffer cells halts cancer immunotherapy associated liver toxicity [Multiplexed_CD40]

Project description:Agonistic CD40 monoclonal antibodies have emerged as promising immunotherapeutic compounds with impressive anti-tumoral effects. However, one of the main limitations of their use in patients is the severe liver necro-hepatitis they can induce. Up to this point, no effective treatment for anti-CD40 liver toxicity that does not hinder anti-tumor efficacy has been found. In the present study , we show that anti-CD40 liver toxicity is dependent on liver macrophages and recruitment of monocytes and neutrophils. We specifically reprogrammed the phenotype of liver macrophages to anti-inflammatory erythrophagocytes by using repeated injection of anti-erythrocyte murine Ter119 (mTer119) antibody. mTer119 administration induced phagocytosis of erythrocytes by liver macrophages and their transformation to Hmoxhigh/Marcohigh/MHC-IIlow erythrophagocytes. mTer119 treatment prevented anti-CD40 induced liver toxic side-effect, with significantly reduced elevation of plasma transaminases level and area of liver necrosis on histology, while preserving the anti-tumoral efficiency of anti-CD40. Our study offers a novel targeted therapeutic approach to treat immune-related liver adverse side effects of immunotherapies.

2022-11-09 | GSE202916 | GEO

Targeted erythrophagocyte reprogramming of Kupffer cells halts cancer immunotherapy associated liver toxicity [Ter119 experiment]

2022-11-09 | GSE202917 | GEO

Resident Kupffer cells and neutrophils drive liver toxicity in cancer immunotherapy

Project description:Immunotherapy is revolutionizing cancer treatment, but is often restricted by toxicities. What distinguishes adverse events from concomitant antitumor reactions remains poorly understood. Here, using anti-CD40-treatment in mice as a model of Th1-promoting immunotherapy, we show liver macrophages’ vulnerability to promote local adverse events. Mechanistically, tissue-resident Kupffer cells mediate liver toxicity by sensing lymphocyte-derived IFN-g and producing IL-12. Conversely, dendritic cells are dispensable for toxicity but drive tumor control. Though macrophages, IL-12, and IFN-g are not necessarily toxic themselves, we find that they prompt a neutrophil response that determines the severity of tissue damage. We further show that similar inflammatory pathways characterize adverse events across tissues, following anti-PD-1 and anti-CTLA4 immunotherapies, and in humans. These findings implicate macrophages and neutrophils as mediators and effectors of aberrant inflammation in Th1-promoting immunotherapy, and suggest distinct mechanisms of toxicity and antitumor immunity.

2021-06-04 | GSE176109 | GEO

Resident Kupffer cells and neutrophils drive liver toxicity in cancer immunotherapy

Project description:Immunotherapy is revolutionizing cancer treatment but can trigger toxicities that remain poorly understood. Here, by comprehensively analyzing mouse models following anti-CD40 therapy, we found an interdependent induction of the cytokines IFN-g and IL-12, which caused inflammatory pathology in various tumor-free tissues. In the liver, Kupffer cells mediated toxicity by sensing lymphocyte-derived IFN-g and producing IL-12, highlighting the vulnerability of tissue-resident macrophages to promote toxicity when reacting to proinflammatory cues. Conversely, dendritic cells drove tumor control but were dispensable for toxicity. We further show that liver macrophages, IL-12, and IFN-g were not toxic themselves, but prompted a neutrophil response that determined the severity of tissue damage. Similar inflammatory pathways characterized immunotherapy-related adverse events in cancer patients. These findings implicate resident macrophages and neutrophils as mediators and effectors of aberrant inflammation, and suggest distinct cellular mechanisms of toxicity and antitumor immunity.

2021-06-03 | GSE175737 | GEO

Targeted erythrophagocyte reprogramming of Kupffer cells halts cancer immunotherapy associated liver toxicity

Project description:This SuperSeries is composed of the SubSeries listed below.

2022-11-09 | GSE202918 | GEO

Resident Kupffer cells and neutrophils drive liver toxicity in cancer immunotherapy

Project description:Resident Kupffer cells and neutrophils drive liver toxicity in cancer immunotherapy

| PRJNA733462 | ENA

Resident Kupffer cells and neutrophils drive liver toxicity in cancer immunotherapy

Project description:Resident Kupffer cells and neutrophils drive liver toxicity in cancer immunotherapy

| PRJNA734933 | ENA

Faecalibacterium prausnitzii abrogates immunotherapy toxicity

Project description:Faecalibacterium prausnitzii abrogates immunotherapy toxicity