RAB33A and cervical carcinoma: Using a lymph node metastasis model in 4-week-old female nude mice (Supplementary Fig. S1f), we found that cervical cancer cells overexpressing RAB33A resulted in larger popliteal and inguinal metastatic lymph nodes, whereas RAB33A-knockout cervical cancer cells resulted in smaller popliteal and inguinal metastatic lymph nodes (Fig. 1e, f, Supplementary Fig. S1g, h).