Evaluation of the effects of cisplatin and the cisplatin-alum mixture as adjuvants for increasing the efficacy of vaccination against Salmonella typhimurium in Balb/c mice

Background & Aims: Salmonella typhimurium (S. typhimurium) is one of the causative agents of intestinal and extraintestinal infections in humans. Symptoms of the mouse infection by this bacterium mimic typhoid fever in humans. Adjuvants are compounds that enhance the effectiveness of vaccines in combination with them. Alum as an adjuvant causes a shift towards Th2 immune and strengthens the humoral immunity responses. Cisplatin is a highly effective anti-tumor drug that stimulates immune responses by activating macrophages and other immune cells and is used in tumor immunotherapy. This study aimed to investigate the role of cisplatin and the cisplatin-alum mixture as adjuvants to increase the efficacy of vaccination against S. typhimurium in Balb/c mice.