{"id":65358,"date":"2026-05-25T07:15:39","date_gmt":"2026-05-25T05:15:39","guid":{"rendered":"https:\/\/inmuno.es\/index.php\/2026\/05\/25\/tuning-pi3k-striking-the-right-balance-for-optimal-cd8-t-cell-responses\/"},"modified":"2026-05-25T07:15:39","modified_gmt":"2026-05-25T05:15:39","slug":"tuning-pi3k-striking-the-right-balance-for-optimal-cd8-t-cell-responses","status":"publish","type":"post","link":"https:\/\/inmuno.es\/index.php\/2026\/05\/25\/tuning-pi3k-striking-the-right-balance-for-optimal-cd8-t-cell-responses\/","title":{"rendered":"Tuning PI3K: striking the right balance for optimal CD8 T-cell responses"},"content":{"rendered":"<div>\n<p><b>J Immunol<\/b>. 2026 May 14;215(5):vkaf296. doi: 10.1093\/jimmun\/vkaf296.<\/p>\n<p><b>ABSTRACT<\/b><\/p>\n<p>CD8 cytolytic T cells are key players in fighting viral infections and other intracellular pathogens. In response to signals from the TCR, costimulatory molecules, and cytokines, CD8 T cells differentiate into populations of cytolytic effectors that can efficiently kill infected and tumor cells, as well as memory precursors that can develop into memory cells that respond to subsequent infection. The class I phosphatidylinositol 3-kinases (PI3Ks) are key components of signaling pathways that dictate and shape CD8 T-cell responses during acute viral infection, as well as during CD8 T-cell exhaustion, a state of hyporesponsiveness driven by prolonged antigen exposure in chronic infection and cancer. In this review, we highlight the role of PI3K\u03b4 in CD8 T-cell activation, differentiation, and function, with a focus on downstream effectors and lessons learned from activating and inhibitory mutants affecting these pathways in mouse models and primary immunodeficiencies.<\/p>\n<p>PMID:<a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/42178190\/?utm_source=SimplePie&amp;utm_medium=rss&amp;utm_content=2985117R&amp;ff=20260525011538&amp;v=2.20.0\">42178190<\/a> | DOI:<a href=\"https:\/\/doi.org\/10.1093\/jimmun\/vkaf296\">10.1093\/jimmun\/vkaf296<\/a><\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>J Immunol. 2026 May 14;215(5):vkaf296. doi: 10.1093\/jimmun\/vkaf296. ABSTRACT CD8 cytolytic T cells are key players in fighting viral infections and other intracellular pathogens. In response to signals from the TCR, costimulatory molecules, and cytokines, CD8 T cells differentiate into populations of cytolytic effectors that can efficiently kill infected and tumor cells, as well as memory &#8230; <a title=\"Tuning PI3K: striking the right balance for optimal CD8 T-cell responses\" class=\"read-more\" href=\"https:\/\/inmuno.es\/index.php\/2026\/05\/25\/tuning-pi3k-striking-the-right-balance-for-optimal-cd8-t-cell-responses\/\" aria-label=\"Read more about Tuning PI3K: striking the right balance for optimal CD8 T-cell responses\">Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[42,71],"tags":[],"class_list":["post-65358","post","type-post","status-publish","format-standard","hentry","category-publicaciones","category-the-journal-of-immunology"],"_links":{"self":[{"href":"https:\/\/inmuno.es\/index.php\/wp-json\/wp\/v2\/posts\/65358","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/inmuno.es\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/inmuno.es\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/inmuno.es\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/inmuno.es\/index.php\/wp-json\/wp\/v2\/comments?post=65358"}],"version-history":[{"count":0,"href":"https:\/\/inmuno.es\/index.php\/wp-json\/wp\/v2\/posts\/65358\/revisions"}],"wp:attachment":[{"href":"https:\/\/inmuno.es\/index.php\/wp-json\/wp\/v2\/media?parent=65358"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/inmuno.es\/index.php\/wp-json\/wp\/v2\/categories?post=65358"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/inmuno.es\/index.php\/wp-json\/wp\/v2\/tags?post=65358"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}