Using IHC experiments, it was found that the IgM mAb 79A11 at 8.95 μg/mL and the IgG2a mAb 69E2 at 50 μg/mL, respectively, reacted with HPV16-positive cervical cancer squamous cell carcinoma paraffin sections and showed typical positive brown particles. Here, CD40LG is linked to squamous cell carcinoma.