AI Insight
Aging affects the immune system in both shared and sex-specific ways, with biological sex shaping distinct immunological trajectories in men and women over time. These sex-differentiated patterns of immune aging have measurable consequences for disease susceptibility, vaccine efficacy, cancer survival, and responses to pharmacological treatments. Despite their significance, sex and age interactions are rarely accounted for in research designs, clinical trials, or treatment guidelines, representing a substantial gap in current medical practice.
Why it matters
Integrating sex- and age-specific immunological knowledge into clinical and research frameworks could improve vaccine design, cancer immunotherapy outcomes, and drug safety monitoring. This has direct implications for advancing personalized medicine and reducing avoidable harm from one-size-fits-all treatment approaches.
by Clayton Baker, Victor A. Ansere, Cossette I. Sanqui, Bérénice A. Benayoun
Aging has effects on the immune system that are similar in men and women, but also reshapes their immune systems in unique, sex-specific ways. These sex-specific patterns of immune aging influence disease susceptibility, vaccine effectiveness, cancer survival, and responses to pharmacological therapies, and have direct implications for preventive medicine and clinical care. However, these differences in susceptibilities and responses are rarely considered in research, clinical trials, or treatment guidelines. By integrating knowledge of sex-specific immune aging with real-world outcomes from vaccines, cancer immunotherapy, and pharmacovigilance studies, this Essay argues that accounting for both sex and age is essential to advance personalized medicine.
Source: The problem with one-size-fits-all medicine: Biological sex and the aging immune system