Journal: Gastro Hep Advances
Article Title: Helicobacter pylori Exploit Short-Chain Fatty Acids-Induced CAPZA1 Overexpression to Emerge CD44v9-Positive Stemness
doi: 10.1016/j.gastha.2025.100860
Figure Lengend Snippet: Stem cell characteristics of CD44v9-positive cells induced by H pylori G27 strains (CagA-positive H pylori ) infection in the presence of butyrate (But). Immunofluorescence analysis of colocalization between CD44v9 and stem cell markers (LGR5, KLF5, and SALL4) in mucosoids derived from the gastric corpus and antrum of mice infected with H pylori G27 strains (CagA-positive H pylori ) or H pylori G27 cag PAI-deletion mutant strains (Δ cag PAI) in the presence of But. Colocalization of CD44v9 and the SPEM marker TFF2 was also assessed. Scale bar = 50 μm.
Article Snippet: The following antibodies were used for fluorescence immunocytochemistry: anti-CAPZA1 (OTI2G4) (Thermo Fisher Scientific, cat# MA5-25093; 1:500 or Abcam, Cambridge, UK, cat# ab166892; 1:500), anti-CD44v9 (Cosmo Bio, Tokyo, Japan, cat# CAC-LKG-M001; 1:500), anti-CagA (Austral Biologicals, cat# HPM-5001–5; 1:500), anti-LGR5 (Atlas antibodies, Stockholm, Sweden, cat# HPA012530; 1:200), anti-KLF5 (GeneTex, Irvine, CA, cat#GTX103289; 1:200), anti-SALL4 (Abcam, cat# ab29112; 1:200), and anti-trefoil factor 2 (TFF2) (Proteintech, Wuhan, China, cat# 13681-1-AP; 1:200).
Techniques: Infection, Immunofluorescence, Derivative Assay, Mutagenesis, Marker