Project description
Cell model of lung disease
Idiopathic pulmonary fibrosis (IPF) is a chronic, progressive lung disease that causes the tissue of the lungs to become thickened and scarred. Over time, fibrosis may lead to lung malfunction, shortness of breath, fatigue and a decrease in the ability to perform everyday activities. Accumulating evidence indicates that the length of the telomeres, which protect the ends of chromosomes, is shortened in people with IPF. The ERC-funded STAR-TEL project aims to develop an in vitro model to study IPF pathogenesis and help find new treatments. The model uses patient-derived induced pluripotent stem cells and will help study senescence, DNA damage and inflammation. Researchers will also screen drugs capable of modulating telomere length.
Objective
Idiopathic pulmonary fibrosis (IPF) is a lethal scarring lung disease often leading to death within 3 years of diagnosis. New antifibrotic medications slow disease progression but they are poorly tolerated by patients. Telomeres, protective structures or caps at the ends of chromosomes, governed by the enzyme telomerase are shortened in type 2 alveolar epithelial cells (AT2)s in sporadic IPF but particularly so in inherited mutations of telomere related genes causing severe disease with early onset. Early clinical studies indicate that danazol modulates telomere length and prevents the progression of pulmonary fibrosis but it is poorly tolerated by patients, causing liver toxicity. Gene therapies including mRNAs which target telomerase have potential but human preclinical models do not exist to test their efficacy. Thus, a new human preclinical model is required to better understand pathogenesis and find new treatments. In preliminary work, I demonstrate that AT2 cells generated from patient-iPSC (iAT2) can replicate elements of pulmonary fibrosis pathogenesis and that telomere length in these cells undergoes heterogenous shortening over time, analogous to the shortening which occurs in vivo. Based on this data and previously published mouse studies, I hypothesise that telomere shortening in AT2 cells causes senescence, DNA damage and inflammation in both sporadic and inherited forms of IPF. Furthermore, I hypothesise that specific gene stratified mRNA-nanomedicines delivered to the lung can modulate telomere length in a precise manner avoiding toxicity. I will compare iAT2 and hepatic cells generated from patients recruited to a clinical trial of danazol to their own clinical outcomes from the study, thereby performing the first clinical trial in a dish in pulmonary fibrosis - to a) better understand the role of telomere shortening in IPF and to b) identify and test gene stratified mRNA-nanomedicines and delivery chemistries leading to improved patient survival.
Fields of science (EuroSciVoc)
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
- medical and health sciences basic medicine pharmacology and pharmacy pharmaceutical drugs
- natural sciences biological sciences genetics mutation
- natural sciences biological sciences genetics chromosomes
- natural sciences biological sciences biochemistry biomolecules proteins enzymes
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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)
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Multi-annual funding programmes that define the EU’s priorities for research and innovation.
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HORIZON.1.1 - European Research Council (ERC)
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(opens in new window) ERC-2022-STG
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2 DUBLIN
Ireland
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