Project description
The role of macrophages in liver inflammation and fibrosis
Non-alcoholic fatty liver disease (NAFLD) is caused by the accumulation of fat in the liver which can cause inflammation and damage. Some individuals may develop an aggressive form of NAFLD known as develop nonalcoholic steatohepatitis (NASH) associated with cirrhosis and liver failure. Emerging evidence underscores the role of adipose tissue macrophages (ATMs) in disease pathology. Funded by the Marie Skłodowska-Curie Actions (MSCA) programme, the MacTalk project aims to delineate the phenotype and localisation of macrophage subsets in NASH. The working hypothesis is that ATMs change hepatic macrophage composition, triggering fibrosis. Results will contribute to the identification of mediators of liver inflammation and fibrosis, opening avenues for new treatments.
Objective
Non-alcoholic fatty liver disease (NAFLD) is characterized by hepatic steatosis and damage. This drives liver inflammation, promoting the progression to non-alcoholic steatohepatitis (NASH) and liver fibrosis. There are currently no approved therapies for NASH and fibrosis, which is in part due to a lack of knowledge of the immunological events underpinning NASH and fibrosis. The pathogenesis of NASH is strongly influenced by crosstalk with other tissues. There is increasing evidence that specifically obese adipose tissue macrophages (ATMs) are directly linked to liver pathology. In this respect, the host lab has shown that obese ATMs increase hepatic macrophage number. However, the exact changes in macrophage subsets and phenotypes were not investigated. I recently demonstrated that in NASH liver macrophages display large heterogeneity in phenotype and tissue localization and this plays a key role in NASH-associated liver fibrosis. Based on this combined preliminary data generated by the host lab and me, I hypothesize that ATMs alter hepatic macrophage composition and consequently affect the progression of NASH to liver fibrosis. By combining the mouse models and expertise available in the host lab and advanced technology present at the host institute, with my expertise in detailed immunophenotyping of the liver in NASH and fibrosis, I will address this innovative hypothesis in great detail. To bridge the translational gap from animal studies, I will investigate the potential contribution of ATMs to hepatic inflammation and fibrosis in humans by using unique fresh paired adipose tissue and liver biopsies available through the clinical network of the host lab. MacTalk integrates the scientific and technical expertise of both me and the host lab, creating a unique framework to identify novel mediators of hepatic inflammation and fibrosis. Furthermore, MacTalk will lay a strong foundation for my future career as independent researcher in the field of liver fibrosis.
Keywords
Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
Programme(s)
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
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HORIZON.1.2 - Marie Skłodowska-Curie Actions (MSCA)
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Topic(s)
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Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Funding Scheme
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
HORIZON-TMA-MSCA-PF-EF - HORIZON TMA MSCA Postdoctoral Fellowships - European Fellowships
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Call for proposal
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Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
(opens in new window) HORIZON-MSCA-2021-PF-01
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6200 MD Maastricht
Netherlands
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