Fragile X Team UMass

Fragile X Programs at UMASS – University of MA, Worcester

Fragile X Syndrome Behavioral Health Clinic The Center for Autism and Neurodevelopmental Disorders (CANDO) is opening a specialty clinic for individuals with Fragile X Syndrome (under the direction of Dr. Jean Frazier) to evaluate and provide treatment for behavioral challenges.

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Bradley Alger, PhD

The Endocannabinoid System in a Mouse Model of Fragile X Syndrome

Fragile X disrupts endocannabinoid signaling. This study in mice demonstrated that correcting it may calm brain hyperexcitability and improve symptoms.

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Paul Lombroso, PhD, Yale University, FRAXA Investigator

Inhibitors of STEP as a Novel Treatment of Fragile X Syndrome

STEP inhibition reversed behavioral and synaptic Fragile X deficits in mice (Neuropharmacology, 2018), highlighting STEP as a promising treatment target.

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Molecular Mechanisms of Cytoskeletal Regulation by FMRP

With FRAXA funding, Dr. Jaffrey linked FMR1 loss to abnormal dendritic spines via RhoA signaling, suggesting RhoA-targeted therapies could help treat Fragile X.

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Fragile X Student teams at WPI help FRAXA Research Foundation

Students at WPI helping FRAXA Research Foundation

Two WPI student teams are working with FRAXA to improve our website and create a mobile app as part of their Interactive Qualifying Project.

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NPR, “A Family’s Long Search For Fragile X Drug Finds Frustration, Hope”

There is no effective treatment for the rare genetic disorder Fragile X syndrome, so two parents created a foundation to fund research. But they found there’s no easy road to a cure. For a few weeks last year, Michael Tranfaglia and Katie Clapp saw a remarkable change in their son, Andy…

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Elizabeth Berry-Kravis, MD, PhD, Fragile X researcher

Clinical Trials Outcome Measures

There is a critical need for reliable biomarkers and clinical outcome measures for Fragile X syndrome. Treatment trials depend on this.

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Kimberly Huber, Ph.D., FRAXA Investigator

NIH Awards $35 Million to Three Fragile X Research Teams

NIH is investing $35M in three Fragile X Research Centers. All teams have been funded by FRAXA and will now receive over $2M annually for five years.

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Andres Ozaita, PhD

Targeting the Endocannabinoid System in Adult Fragile X Mice

CB1 blockade with rimonabant reversed cognitive, sensory, and seizure symptoms in FXS mice, highlighting the endocannabinoid system as a therapeutic target.

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Channelopathies: Altered Ion Channels in Fragile X Syndrome

Ion channel defects (“channelopathies”) in Fragile X disrupt neuron firing and network balance. This study maps these channel changes to guide targeted treatments.

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Mara Dierssen, MD, PhD

Phase 1 Clinical Trial of Mega Green Tea Extract in Fragile X Syndrome

An early trial of green tea extract EGCG improved cognition in Fragile X. It targets ERβ and reduces overactive PI3K/mTOR/ERK signaling linked to FXS symptoms.

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Yue Feng, PhD

Functional Interplay Between FMRP and CDK5 Signaling

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.

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Computational Analysis of Neural Circuit Disruption in Fragile X Model Mice

FRAXA-funded researchers used advanced computer models to uncover how FXS brain circuits change and predict which treatments may correct them. Results published.

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Synaptic Characterization of Human Fragile X Neurons

Stanford scientists used human stem-cell–derived neurons to show that retinoic acid signaling is blocked by Fragile X, revealing a new pathway to target for treatment.

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Bcl-xL Inhibition as a Therapeutic Strategy for Fragile X Syndrome

Fragile X neurons show leaky mitochondria and excess Bcl-xL–driven synapses. Targeting this pathway may restore energy balance and healthier brain development.

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Robert Wong, PhD

Seizures in Fragile X Syndrome and Therapeutic Potential of NMDA Receptor Antagonists

Dr. Wong studies how NMDA and mGluR receptors interact to trigger seizures in Fragile X, revealing NR2B-specific blockers as a promising targeted treatment.

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Novartis Discontinues Development of mavoglurant (AFQ056) for Fragile X Syndrome

Mavoglurant trials in Fragile X did not show improvement vs. placebo, leading Novartis to end the program and wind down the open-label extension.

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New Clue to Fragile X and Autism Found Inside Brain Cells

FRAXA-funded research revealed that mGluR5 isn’t only on the cell surface. Drugs may need to reach internal receptors to be effective in Fragile X.

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Samie Jaffrey, PhD, at Weill Medical College of Cornell University, FRAXA research grant

Scientists Uncover Trigger for Fragile X Syndrome

A Weill Cornell team discovered that Fragile X stems from a gene being shut off—and a compound that blocks this process may prevent the condition.

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Small Molecules To Target r(CGG) Expansions to Treat Fragile X Syndrome

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.

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Molecular mechanisms: Enzyme blockers help Fragile X mice

Dr. Jope won the 2013 FRAXA Pioneer Award for showing that lithium and other GSK-3–blocking drugs can reverse cognitive deficits in Fragile X mice.

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Elizabeth Higgins Clark

This Is My Brother, speech by Elizabeth Clark at FRAXA’s Fall X Ball

At FRAXA’s 11th Annual Fall X Ball, Elizabeth Higgins Clark spoke with humor and heart about her brother David, who has Fragile X.

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Fragile X Syndrome Protein Linked to Breast Cancer Progression

Dr. Claudia Bagni’s team discovered that FMRP can act as a master switch in aggressive breast cancer, controlling proteins that drive invasion and metastasis.

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Social Behavior as an Outcome Measure for Fragile X Clinical Trials

FRAXA funding helped identify reliable social behavior tests in Fragile X mice and showed an mGluR5 treatment could improve sociability, guiding future trials.

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FRAXA Funded Research

Current Research Grants (40)