LLT1 is expressed on GC-B cells in NSCLC tumors. (A) Representative dot plots of LLT1 expression by flow cytometry on all B cells and B cell subsets in two different NSCLC tumors (upper and lower panels), using anti-human LLT1 mAb clone 4F68 and isotype control. Percentages of cells expressing LLT1 among each B cell subset in NSCLC tumors are indicated, n = 10. (B) Representative dot plots of LLT1 expression on GC/pre-GC B cells in a NSCLC tumor and matched non-tumoral distant lung, with percentages of cells expressing LLT1 among GC/pre-GC B cells in each compartment, n = 10. (C) Representative dot plots of LLT1 expression on different cell subsets in a NSCLC tumor, with percentages of cells expressing LLT1 among each cell subset in NSCLC tumors, n = 10. Mean percentages are indicated by red horizontal lines. P values were calculated using (A, C), One-way Anova, Kruskal-Wallis test, Dunn's Multiple Comparison Test and (B), unpaired t test. *p<0.05, **p<0.005.