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A Frog-Gut Bacterium Clears Tumors in Mice

One intravenous dose of Ewingella americana eliminated colorectal tumors in the reported mouse model while concentrating inside tumor tissue.

Published Updated Story ID: mp-2026-07-12-019
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Summary

One intravenous dose of Ewingella americana eliminated colorectal tumors in the reported mouse model while concentrating inside tumor tissue.

JAIST researchers found the bacterium both damaged tumors and recruited immune cells. The 100 percent complete response applies only to this mouse experiment; human safety and efficacy are unknown, and the organism is not an approved therapy.

Why it matters

One intravenous dose of Ewingella americana eliminated colorectal tumors in the reported mouse model while concentrating inside tumor tissue.

Limits and context

  • The 100 percent complete response applies only to this mouse experiment; human safety and efficacy are unknown, and the organism is not an approved therapy.

Key claims

  1. One intravenous dose of Ewingella americana eliminated colorectal tumors in the reported mouse model while concentrating inside tumor tissue.

    Qualification: The 100 percent complete response applies only to this mouse experiment; human safety and efficacy are unknown, and the organism is not an approved therapy.

    Evidence: source-2026-07-12-019

Sources

  1. ScienceDaily from JAISTwww.sciencedaily.com · secondary reporting

Corrections

No corrections have been recorded for this story.