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My research utilises induced pluripotent stem cells (iPSCs) to model inherited cardiomyopathies. Cardiomyopathies are diseases of the heart muscle which affect its structure or function. They often present in adolescence or early adulthood with symptoms that may include chest pain, palpitations, shortness of breath, exercise intolerance and, in some cases, sudden death. Inherited cardiomyopathies can be associated with a mutation in any of number of genes, including genes encoding proteins with a structural role in the sarcomere (the contractile unit of heart muscle cells) and energy metabolism, as well as in genes with, as yet, not fully defined functions. iPSCs have the ability to divide indefinitely to make more stem cells or can be differentiated to generate any specific cell type. Genome-editing can be used to precisely introduce the mutations found in inherited cardiomyopathies into the DNA (the molecule containing the cell’s genetic code) of iPSCs. In my research, I use small molecules to direct differentiation of iPSCs with or without cardiomyopathy-associated mutations into heart muscle cells (cardiomyocytes) which beat spontaneously in culture. I then use these cardiomyocytes to gain insight into the physiological (e.g. beating strength and frequency) and biochemical (e.g. RNA and protein expression) differences associated with cardiomyopathy mutations.
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FASEB JOURNALno. 6 (2024): e23505-e23505
JOURNAL OF MOLECULAR AND CELLULAR CARDIOLOGY (2023): 44-57
Houman Ashrafian, Linda O'Flaherty,Julie Adam,Violetta Steeples,Yuen-Li Chung,Phil East,Sakari Vanharanta,Heli Lehtonen,Emma Nye,Emine Hatipoglu, Melroy Miranda,Kimberley Howarth,
crossref(2023)
bioRxivpp.715680-36, (2019)
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