Dr. Zhexing Wen and Dr. Peng Jin of the newly funded Fragile X Center of Excellence at Emory University School of Medicine join us in this seminar to present about Understanding the Role of FMRP in Human Brain Development Using Brain Organoids.
Studying human Fragile X neurons from stem cells revealed key gene changes not seen in mice—showing why some treatments failed and guiding better future therapies.
Fragile X brain cells have fewer, smaller mitochondria. This team tested mitochondria-boosting drugs that improved symptoms in mice to see if they can help humans.
Could “caffeine-like” drugs help Fragile X? FRAXA funded research to test adenosine blockers, which may boost thinking and improve symptoms in Fragile X mice.
FRAXA funded a study using blood-based transcriptomics to find reliable Fragile X biomarkers. This unique approach links molecular data to behavior for future trials.
FRAXA-funded work identified PDE enzymes as key targets in Fragile X, showing that PDE inhibitors can fix signaling and boost synaptic function. PDE4D trials are underway.
Peter Todd, MD, PhD, Assistant Professor in the Department of Neurology in the University of Michigan Medical School, was awarded a FRAXA Research Grant for gene reactivation with the use of CRISPR. In this interview he tells us about CRISPR in Fragile X research, how realistic is it that it could turn the Fragile X gene back on, and if it can really cure Fragile X.
FRAXA funded Dr. Peter Todd to use CRISPR to reactivate FMR1. Published results confirmed restored gene expression, a big step toward disease-modifying therapy.
"The occurrence and development of events by chance in a happy or beneficial way." That’s how Lynne E. Maquat, PhD, describes the process of how her research extended to Fragile X syndrome to better understand it and ultimately find advanced treatments.
FRAXA-supported work has identified DgkK as a critical enzyme lost in Fragile X. Drugs that raise DgkK levels may correct brain signaling and improve symptoms.
With $375,000 in grants from FRAXA, Dr. David Nelson developed an array of advanced mouse models of Fragile X. These models are available at Jackson Labs (JAX).
The team at Johns Hopkins University studied groups of small RNAs, known as microRNAs, which are greatly decreased in brain tissue of Fragile X mice vs. normal controls.
FRAXA-funded research showed nonsense-mediated mRNA decay is overactive in Fragile X, pointing to existing NMD-suppressing drugs like caffeine as potential treatments.
Drs. Emily Osterweil and Stephanie Barnes investigated NMDA receptor signaling and how rebalancing protein synthesis could correct Fragile X brain abnormalities.
STEP inhibition reversed behavioral and synaptic Fragile X deficits in mice (Neuropharmacology, 2018), highlighting STEP as a promising treatment target.
With FRAXA funding, Dr. Jaffrey linked FMR1 loss to abnormal dendritic spines via RhoA signaling, suggesting RhoA-targeted therapies could help treat Fragile X.
FRAXA-funded work showed CDK5 signaling is disrupted in Fragile X. CDK5 drugs are in development for Alzheimer’s so this pathway offers a promising new FX treatment angle.
FRAXA-funded scientists created small molecules that target the CGG repeat “off-switch” in Fragile X, aiming to restore the missing FMRP protein at its source.