Chinese scientists use E coli to fight breast tumours from within in mice study

South China Morning Post TechnologyNews ReportEN 2 min read 100% complete by Holly ChikMarch 18, 2026 at 07:00 AM

AI Summary

short article 2 min

Chinese scientists at Shandong University have engineered *E. coli* bacteria into a targeted cancer therapy. The modified bacteria, a strain called *E. coli* Nissle 1917 (EcN), can colonize breast tumor cells in mice and deliver an existing cancer drug directly from within the tumor. This approach aims to reduce the toxic side effects associated with traditional chemotherapy. Published in PLOS Biology in March 2026, the study suggests that EcN's ability to accumulate and proliferate within solid tumors makes it a promising candidate for bacterial cancer therapy. Researchers believe this engineered EcN enables precise drug delivery and offers powerful anticancer activity, paving the way for future targeted cancer treatments.

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Technology

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Public Health

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Key Claims (5)

AI-Extracted

E coli Nissle 1917 (EcN) was isolated from the faeces of a healthy soldier during an outbreak of diarrhoea in World War I.

factual — null100% confidence

The research was performed on mice with breast cancer.

factual — null100% confidence

The probiotic strain showed “the capacity to both accumulate and proliferate within solid tumours.

quote — Chinese team90% confidence

Chinese scientists have turned E coli into a cancer therapy that can colonise tumour cells.

factual — Chinese scientists90% confidence

Engineered EcN enables drug biosynthesis and precise delivery, offering powerful anticancer activity.

factual — Researchers80% confidence

Claims are automatically extracted and should be independently verified. Attribution indicates the stated source of the claim.

Key Entities & Roles

Key Player Opposition Context

Germany 40% PLOS Biology 40% Qingdao 50% Alfred Nissle 60% China ×270% Shandong University 70% E coli ×590%

Keywords

cancer therapy 100% e coli 90% breast cancer 80% targeted therapy 70% tumours 70% mice study 60% drug delivery 60% chemotherapy 50% bacteria 50% probiotic 40%