Quantitative comparison of the TLR4 or TLR9 mRNA expression detected by real-time RT-PCR in normal cervical epithelia (Normal), cervical intraepithelial neoplasias (CINs) and invasive squamous cell carcinomas (ISCCs). Statistical differences of TLR4 mRNA expression were significant between normal cervical epithelia and CINs (P = 0.014), or between normal cervical epithelia and ISCCs (P < 0.001), but significant differences were not found between CINs and ISCCs (P = 0.066). The differences of TLR9 mRNA expression between normal cervical epithelia and CINs (P = 0.008), or between normal cervical epithelia and ISCCs (P = 0.006) were also statistically significant. However, there was no significant difference between CINs and ISCCs (P = 0.681)