Abstract
Oral cancer is a public health issue and it is a consequence of a few habits i.e., alcoholism and smoking, in addition to pathogens such as HPV. Brazil has one of the highest mortality rates in the world and it is mainly due to late diagnosis of this disease. Proteolytic enzymes, including kallikrein 14 (KLK14), are related to tumor growth and development, as these proteins have a role in…