Journal: Neoplasia (New York, N.Y.)
Article Title: Microbe-associated molecular patterns differentially mediate carcinogenic alterations of the breast tissue in the context of obesity
doi: 10.1016/j.neo.2026.101284
Figure Lengend Snippet: LPS and flagellin induce DNA double-strand breaks in breast acini in a TLR-dependent manner. A. Representative comet images from neutral comet assays performed on 3D cultures of breast acini treated with vehicle (control), 1 μg/ml LPS, 1 μg/ml LTA, and 10 ng/ml flagellin for 72 h. Bleomycin (BLM; 20 mU/ml; 2h) was used as positive control. B. Comet assay quantification. n=300 acini from 3 biological replicates. C. Representative images for immunofluorescence staining of 53BP1 (red) in acini treated with MAMPs ± TLR inhibitors. Nuclei are counterstained with DAPI (blue). D-F. Quantification of 53BP1 foci numbers in acini treated with LPS ± TLR4 inhibitor (D), with LTA ± TLR2 inhibitor (E) or with flagellin ± TLR5 inhibitor (F). ns is not significant. *P<0.05, **P<0.01, ***P<0.001.
Article Snippet: For TLR blockade, cells were pre-treated for 1 h with 5 μg/ml of TLR4 neutralizing antibody (InvivoGen; mabg-htlr4), TLR2 neutralizing antibody (InvivoGen; maba2-htlr2-2), or TLR5 neutralizing antibody (InvivoGen; maba2-htlr5).
Techniques: Control, Positive Control, Single Cell Gel Electrophoresis, Immunofluorescence, Staining