The immunohistochemical observation in Human Protein Atlas (HPA) database demonstrated moderate expression of MAP1A in normal bladder tissues (HPA039064, Patients id: 751, Male, age: 55, Intensity: Moderate, Quantity < 25%), with a weak expression intensity in low-grade bladder cancer (HPA039064, Patients id: 4936, Male, age: 76, Intensity: Weak, Quantity < 25%) and undetectable in high-grade bladder cancer (HPA039064, Patients id:1984, Male, age61, Intensity: Negative, Quantity: None) (Figure 4E). This evidence concerns the gene MAP1A and urinary bladder carcinoma.