As cancer immunotherapy has advanced over the past few years, an increasing number of research teams have turned their attention to developing cancer vaccines, which are a form of active immunotherapy that works by triggering the body's defenses against cancer by exposing patients to the appropriate antigens found in tumor cells. Currently, some of the cancer vaccines that we are aware of are preventive vaccines, like the human papillomavirus (HPV) vaccine to prevent cervical cancer. However, therapeutic cancer vaccines remain the scientific community's unattainable goal in a world where cancer is still a hot topic.