Mycoplasma infections and different human carcinomas

Figure 1 Immunoperoxidase stainings of different carcinoma tissues reacted with monoclonal antibody PD4 ( × 400). Both A and B were gastric carcinomas. A (singnet-ring cell carcinoma) was negative, B (adenocarcinoma) was positive. C (glioma) indicated the negative reaction, D (glioma), E (lung cancer), F (esophagus cancer), G (breast cancer) and H (colon cancer) presented the positive reactions with antibody PD4.

Figure 2 Amplification of mycoplasma 16srDNA from paraffin-N-embedded specimens. M: 100 bp DNA Marker; Lane 1: Positive control; Lanes 2-4: positive specimen; Lanes 5-7: negative specimen. The arrow indicates the amplified mycoplasma DNA.