{"id":3689,"date":"2025-07-07T12:28:18","date_gmt":"2025-07-07T15:28:18","guid":{"rendered":"https:\/\/desertkingdev.wpenginepowered.com\/?p=3689"},"modified":"2025-09-10T19:32:54","modified_gmt":"2025-09-10T22:32:54","slug":"slow-release-follicle-targeting-vaccines-increase-b-cell-diversity","status":"publish","type":"post","link":"https:\/\/desertking.com\/es\/slow-release-follicle-targeting-vaccines-increase-b-cell-diversity\/","title":{"rendered":"Rodrigues, K.A., et al. Vaccines combining slow release and follicle targeting of antigens increase germinal center B cell diversity and clonal expansion."},"content":{"rendered":"<p><strong>Rodrigues, K.A., et al. Vaccines combining slow release and follicle targeting of antigens increase germinal center B cell diversity and clonal expansion. <i>Sci Transl Med<\/i>, 2025 Jun 18, 17(803):eadw7499. PMID: 40531969<\/strong><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">This study explores an innovative vaccine strategy that leverages the combination of two key mechanisms: slow antigen release achieved through the use of alum-pSer anchoring, which helps retain the antigen within lymph nodes over an extended period, and the inclusion of a powerful saponin\/TLR agonist adjuvant known as SMNP, which stimulates robust immune activation. By integrating these approaches, at a smart way,\u00a0the researchers aim to improve the delivery, persistence, and presentation of the vaccine antigen to the immune system, thereby promoting stronger and more durable humoral immune responses.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Using an HIV Env trimer in mice, the researchers demonstrated that this synergistic formulation promotes sustained antigen presence in B cell follicles and on follicular dendritic cells (FDCs), leading to improved germinal center responses characterized by increased diversity, clonal expansion of B cells, higher numbers of memory B cells and antibody-secreting cells, and stronger antibody production (serum IgG titers).\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">The saponin component plays several critical roles in enhancing the vaccine response as described in the study: A) promoting lymph flow and antigen trafficking, B) triggering inflammatory cytokines, C) enhancing antigen retention and presentation, D) amplifying the humoral immune response.<\/span> <span style=\"font-weight: 400;\">The combination of slow antigen release and saponin adjuvant properties leads to increased germinal center B cell proliferation, diversified BCR repertoire, and higher serum antibody titers. It also promotes better recruitment of B cell clones and helps in developing more broadly neutralizing responses.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Combining slow-release antigen delivery with follicle-targeting adjuvants, such as alum-pSer and SMNP, enhances antigen retention in B cell follicles, diversifies the germinal center response, and improves humoral immunity. This strategy offers a promising approach to creating more effective vaccines by promoting sustained antigen availability and diverse B cell activation, especially against complex pathogens like HIV.<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">Click <\/span><a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/40531969\/\" target=\"_blank\" rel=\"noopener nofollow\"><span style=\"font-weight: 400;\">here <\/span><\/a><span style=\"font-weight: 400;\">to access the full scientific paper.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">[arrow_forms id=&#8217;3298&#8242;]<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Rodrigues, K.A., et al. Vaccines combining slow release and follicle targeting of antigens increase germinal center B cell diversity and clonal expansion. Sci Transl Med, 2025 Jun 18, 17(803):eadw7499. PMID: 40531969 This study explores an innovative vaccine strategy that leverages the combination of two key mechanisms: slow antigen release achieved through the use of alum-pSer [&hellip;]<\/p>\n","protected":false},"author":16,"featured_media":3688,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"rs_blank_template":"","rs_page_bg_color":"","slide_template_v7":"","footnotes":""},"categories":[46],"tags":[],"class_list":["post-3689","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-texto-cientifico"],"_links":{"self":[{"href":"https:\/\/desertking.com\/es\/wp-json\/wp\/v2\/posts\/3689","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/desertking.com\/es\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/desertking.com\/es\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/desertking.com\/es\/wp-json\/wp\/v2\/users\/16"}],"replies":[{"embeddable":true,"href":"https:\/\/desertking.com\/es\/wp-json\/wp\/v2\/comments?post=3689"}],"version-history":[{"count":0,"href":"https:\/\/desertking.com\/es\/wp-json\/wp\/v2\/posts\/3689\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/desertking.com\/es\/wp-json\/wp\/v2\/media\/3688"}],"wp:attachment":[{"href":"https:\/\/desertking.com\/es\/wp-json\/wp\/v2\/media?parent=3689"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/desertking.com\/es\/wp-json\/wp\/v2\/categories?post=3689"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/desertking.com\/es\/wp-json\/wp\/v2\/tags?post=3689"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}