Scientists from Boston University School of Medicine, US have discovered a protein called PorB that could help make vaccinations more effective and provide protection from diseases such as cancer. In this study, researchers had purified this protein, found on the exterior of bacteria (neisseria meningidis). It helps to increase amount of antibody production and can stimulate cells to kill offending agent and used it as an accessory to provide a better vaccination response.Proteins are unusually any of a class of nitrogenous organic compounds which have large molecules composed of one or more long chains of amino acids. They are an essential part of all living organisms, especially as structural components of body tissues such as muscle, hair, etc., and as enzymes and antibodies. Significance of discovery Typically, vaccines can either increase the amount of antibody production or they can stimulate cells (called cytotoxic T cells) to directly kill the offending agent.n this study, the researchers used two experimental models. The first model was given a vaccination with antigen and mixed PorB, while the second model was given the antigen alone. The model that received the PorB had an increase in the response to the vaccine antigen, evidenced by an increased number of activated cells in the lymph nodes and a gain in the production of cytotoxic T cells, as compared to the vaccination with the antigen alone.”Our study deepens the general understanding of how vaccine adjuvants modulate immune responses. The antigen formulation with PorB triggers a sequence of cellular events at the periphery and in lymphoid tissue that are critical for the establishment of protection to a broad array of infectious diseases, and maybe for other diseases like cancer,” added Wetzler, a physician in Boston Medical Center’s Department of Infectious Diseases.