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Yale researchers find potential treatment for Rett Syndrome |
Yale researchers have found an experimental cancer drug that can extend life in Rett Syndrome in animal studies.Rett Syndrome is a devastating genetic disorder that afflicts about one of every 10,000 to 15,000 girls within 6 to 18 months after birth.The findings of the research have been published in the journal Molecular Cell.
Rett Syndrome is a rare brain condition related to autism, caused by mutations in the MECP2 gene. Because the gene is located on the X chromosome, the syndrome occurs almost exclusively in girls. No drugs are available to treat Rett.
The road to a cure for Rett syndrome is paved with encouraging findings but also with many challenges. Whilst optimism drives discovery, it is important for those directly affected to be well informed.
In addition, the drug JQ1 also restores the cellular function of neurons in human models of the disease. Rett Syndrome causes severe deficits in language, learning and other brain functions and eventually leads to death, often during teenage years.
The Yale team -- led by senior author In-Hyun Park, associate professor of genetics, and a researcher at Yale's Child Study Center and Stem Cell Center -- wanted to know how a mutation in gene MECP-2 causes the severe disruption to neuronal functions in the cortex of Rett Syndrome patients.
They created a human brain organoid containing this mutation from embryonic stem cells and found severe abnormalities in multiple brain cells. A type of brain cell called interneurons, which regulate the brain's excitatory neurons, was particularly impacted by the mutation.
The lab then screened a variety of compounds and found that one drug, JQ1, corrected abnormalities found in interneurons of the Rett Syndrome model. The drug has been investigated in several experimental trials as a potential cancer treatment. They then tested the drug in mice models of Rett Syndrome and found that the treated mice lived about twice as long as those not receiving the drug.
Park said the research paves the way for additional research on potential new therapies for Rett Syndrome, for which there are currently no effective treatments.
Dr Kamal Kant Kohli-MBBS, DTCD- a chest specialist with more than 30 years of practice and a flair for writing clinical articles, Dr Kamal Kant Kohli joined Medical Dialogues as a Chief Editor of Medical News. Besides writing articles, as an editor, he proofreads and verifies all the medical content published on Medical Dialogues including those coming from journals, studies,medical conferences,guidelines etc. Email: drkohli@medicaldialogues.in. Contact no. 011-43720751