“PO88 | Bacterial lysate ‘lantigen B’ induces proliferation of B and NK cells and the release of related cytokines: M. Alfonsetti1, R. Liani1, P. Di Mattia3, M. Tredicine4, F. Papa3, Q. Niu5, M. Di Gioacchino2, F. Santilli1,3 | 1Department of Medicine and Aging, Center for Advanced Studies and Technology, University of Chieti, Italy; 2Institute for Clinical Immunotherapy and Advanced Biological Treatments, Pescara, Italy; 3Specialization School of Allergy and Clinical Immunology, G. d’Annunzio University, Chieti, Italy; 4Department of Medical, Oral, and Biotechnology Science, University G. d’Annunzio, Chieti-Pescara, Chieti, Italy; 5Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan, Shanxi, China” (2025) Bleeding, Thrombosis and Vascular Biology, 4(s1). doi:10.4081/btvb.2025.358.