From The Mount Sinai Hospital / Mount Sinai School of Medicine:

IMAGE: Dr. Bruce Gelb uses advanced stem cell technology to create a model of a heart condition called hypertrophic cardiomyopathy (HCM). view more

Credit: Mount Sinai Health System

Using advanced stem cell technology, scientists from the Icahn School of Medicine at Mount Sinai have created a model of a heart condition called hypertrophic cardiomyopathy (HCM) — an excessive thickening of the heart that is associated with a number of rare and common illnesses, some of which have a strong genetic component. The stem cell lines scientists created in the lab, which are believed to closely resemble human heart tissue, have already yielded insights into unexpected disease mechanisms, including the involvement of cells that have never before been linked to pathogenesis in a human stem-cell model of HCM. The research was published in the journal Stem Cell Reports.

The genetic disorder discussed in the new study is called cardiofaciocutaneous syndrome (CFC), which is caused by a mutation in a gene called BRAF. The condition is rare and affects fewer than 300 people worldwide, according to the National Institutes of Health. It causes abnormalities of the head, face, skin, and major muscles, including the heart.

To learn more about HCM associated with various genetic diseases, Mount Sinai scientists took skin cells from three CFC patients and turned them into highly versatile stem cells, which were then converted into cells responsible for the beating of the heart. This model has relevance for research on several related and more common genetic disorders, including Noonan syndrome, which is characterized by unusual facial features, short stature, heart defects, and skeletal malformations.

“At present, there is no curative option for HCM in patients with these related genetic conditions,” said Bruce D. Gelb, MD, Director …

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