CAV1 and esophageal squamous cell carcinoma: The tumor promoting activity of Cav-1 has been widely confirmed by carefully detecting its expression levels and clinical values in varieties of cancers, such as tongue squamous cell carcinoma, esophageal squamous cell carcinoma, bladder transitional cell carcinomas, nasopharyngeal carcinoma and neck squamous cell carcinoma [16], [31], [32], [33], [34].