Ecotoxicology and environmental safety
Cure8 research brief
Why This Matters
The study links a common environmental chemical (BPA) to worse epithelial injury and inflammation in colitis models, highlighting a potential environmental contributor to IBD-relevant epithelial dysfunction and inflammasome activation.
Who Should Pay Attention
Researchers studying environmental triggers of IBD, basic scientists focused on epithelial biology, and clinicians interested in mechanisms of mucosal injury and inflammasome pathways.
Study Snapshot
Story typeResearch paper
Evidence typeResearch paper
Source depthJournal abstract
What To Know
This lab and mouse study examined how exposure to the environmental chemical bisphenol A (BPA) affects intestinal epithelial cells and worsens colitis-like injury. In DSS-treated mice BPA increased mucosal damage, reduced tight-junction proteins (ZO-1, Claudin-1), and raised markers of CASP1/NLRP3 inflammasome activity.
In cultured human intestinal epithelial cells BPA impaired mitochondrial function (lower membrane potential, Complex I activity, ATP; higher mitochondrial superoxide) and increased cleaved CASP1, GSDMD-N, IL‑1β and NF-κB signaling.
The authors used a CASP1 inhibitor (VX-765) and computational analyses: pharmacologic CASP1 blockade partially preserved proliferation and barrier proteins but did not fully reverse inflammatory or metabolic stress effects.
Computational docking and human single-cell transcriptomic reanalysis supported CASP1 as a plausible BPA-associated target and showed CASP1-high epithelial cells in IBD enriched for inflammatory/pyroptosis programs.
These results suggest BPA can aggravate epithelial injury in colitis models through mitochondrial dysfunction and inflammasome/CASP1-associated pathways, but CASP1 is not the sole mediator.
Keep In Mind
This is preclinical research combining mouse models, cultured human cells, computational modelling, and reanalysis of existing human single-cell data. Findings show plausible mechanisms but do not establish clinical effects in people. VX-765 effects were partial, indicating multiple pathways are involved. SummaryConfidence: medium
Source Details
Review the original publication for the complete reporting, methods, and context.
Research paper
Evidence type derived from source or registry metadata.
PublicationEcotoxicology and environmental safety
AuthorsYang Han, Jianbao Zheng, Jian Dong +3 more
InstitutionDepartment of Vascular Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi Province 710061, China.
Study typeJournal article
Indexed viaPubMed
Source typeResearch paper
PublishedSep 2, 2026, 12:00 AM
Content availableJournal abstract
Conflict statement: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
This Cure8 brief is based on source text from the linked article. Cure8 is informational only and is not a substitute for professional medical advice, diagnosis, or treatment.
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