When parasite remnants meet the gut epithelium

Inflammatory responses of human colonic cells to Anisakis extracts in vitro

What happens when intestinal epithelial cells are exposed not to live parasites, but to their molecular remnants? This in vitro study addresses that question using extracts from Anisakis larvae and human Caco‑2 cells.

Original article: Exposure to Anisakis extracts can induce inflammation on in vitro cultured human colonic cells, DOI: 10.1007/s00436–017–5551–6, https://link.springer.com/article/10.1007/s00436-017-5551-6

Q&A What was tested? Crude extracts from frozen Anisakis larvae, with or without allyl isothiocyanate treatment, alone or combined with LPS.

What was measured? Markers of inflammation (COX‑2) and apoptosis‑related pathways (caspase‑3) in differentiated Caco‑2 cells.

Key results • Anisakis extracts alone induced COX‑2 expression. • Extracts enhanced LPS‑induced inflammatory responses. • Caspase‑3 activation was modulated in a treatment‑dependent manner. • Pro‑inflammatory activity persisted after freezing or biocidal treatment.