Susumu Tonegawa, PhD, seated at his desk

Remembering Dr. Susumu Tonegawa: A Legacy of Discovery in Fragile X Syndrome Research

July 20, 2026

FRAXA remembers Dr. Susumu Tonegawa, Nobel laureate and scientific advisor whose discoveries advanced research toward treatments for Fragile X syndrome.

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Susumu Tonegawa, PhD, at MIT

Experimental Compound FRAX486 Reverses Signs of Fragile X in Mice

February 13, 2006

With $81K from FRAXA, Dr. Susumu Tonegawa at MIT studied the PAK enzyme as a potential Fragile X treatment target. Results published.

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