How Easter Island's Soil Unknowingly Revolutionized Modern Medicine
Rapa Nui, also called Easter Island, is one of the most remote places on the planet. Known for its towering moai statues, it sits 1,200 miles east of Pitcairn Island and 2,200 miles west of Chile. Few realise that this tiny island also played a hidden role in modern medicine. In 1964, the Medical Expedition to Easter Island (METEI) collected soil samples from the island. One of these contained a bacterium called Streptomyces, which produces a compound now known as rapamycin. The drug works by blocking a key protein, TOR, that controls cell growth and energy use in the body.
Rapamycin became vital in preventing organ transplant rejection. It later found further use in cancer treatments. Yet, neither Rapa Nui nor the original expedition received any credit for the discovery. The island's history has long fascinated researchers. Its mysterious past, including the creation of the giant moai carvings, remains debated. Now, decades after the soil sample was taken, Rapa Nui's unrecognised contribution to medicine has gained new attention. In June 2024, the World Intellectual Property Organisation finalised a treaty to stop companies from patenting traditional knowledge without permission. The agreement aims to prevent cases like rapamycin's, where discoveries tied to Indigenous lands went unacknowledged for years.
The 1964 expedition's soil sample led to a drug that transformed medical treatments. But Rapa Nui saw no benefit or recognition from rapamycin's success. The new treaty may help ensure that future discoveries tied to Indigenous lands are handled differently.
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