Immune determinants of leuprolide-associated cardiovascular risk in prostate cancer
Gupta, T.; Zeng, F.; Li, M.; Moore, I.; Parihar, V. C.; Yadalam, A. K.; Ahluwalia, A.; Reyes, R. J. C.; Chen, Y.; Hammons, J.; Chung, E.; Xu, H.; Mecorapaj, S.; Lu, M.; Han, R.; Quyyumi, A. A.; Lesinski, G. B.; Waller, E. K.; Olsen, B.; Patel, S. A.; Mandawat, A.; Chaudagar, K.
Show abstract
Leuprolide, a widely used androgen-deprivation therapy (ADT) for prostate cancer (PC), has been associated with increased cardiovascular events (CVE), although the underlying mechanisms remain unclear. Through integrated spatial transcriptomic analyses of murine heart and immune-stromal profiling in patient blood, we identified immune programs linked to leuprolide-associated CVE risk. Spatial analyses revealed the distinct organization of lymphoid (T+B cells) aggregates and inflammatory macrophages in the plaque following leuprolide exposure that accompanied by ventricular hypertrophy, relative to normal vasculature. Parallel profiling of circulatory soluble and cellular components in patients demonstrated CD8+T cell enriched pattern in ~44% of patients, including memory and type 1 cytotoxic subsets that linked to treatment-induced CVE, such as ventricular dysfunctions, but no contribution of adipocytokines. These translational findings highlight the stratification of leuprolide-associated CVE risk in PC patients based on circulating T cell profiling and could guide the risk mitigation with alternative ADT agents.
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