NOD1 and uterine cervix carcinoma in situ: In term of immunostaining intensity, the strong NOD1 expression (2+ and 3+) was detected in 77.8% normal cervical, 30.0% CIN I, 9.6% CIN II, and 6.8% CIN III samples, respectively, while no strong staining was observed in ISCCs (Fig. 1, Table 1).