{"id":27,"date":"2024-09-12T10:25:13","date_gmt":"2024-09-12T15:25:13","guid":{"rendered":"https:\/\/sites.edb.utexas.edu\/tol\/?page_id=27"},"modified":"2026-07-10T09:44:37","modified_gmt":"2026-07-10T14:44:37","slug":"current-projects","status":"publish","type":"page","link":"https:\/\/sites.edb.utexas.edu\/tol\/current-projects\/","title":{"rendered":"Current Projects"},"content":{"rendered":"<div style=\"max-width: 1100px;margin: 0 auto;font-family: Helvetica,Arial,sans-serif;color: #20242a;line-height: 1.65\">\n<section style=\"padding: 8px 0 40px\">\n<p style=\"margin: 0 0 12px;font-size: 13px;letter-spacing: .12em;text-transform: uppercase;color: #bf5700;font-weight: 600\">Our research<\/p>\n<p style=\"font-size: 18px;color: #444b54;margin: 0;max-width: 62ch\">We study osteoimmunology, an interdisciplinary field studying interactions between bone and the immune system, pairing mechanistic work in mice with translational research in people.<\/p>\n<\/section>\n<section style=\"margin: 0 0 50px\">\n<p style=\"margin: 0 0 10px;font-size: 13px;letter-spacing: .12em;text-transform: uppercase;color: #bf5700;font-weight: 600\">Mechanistic \u2014 in mice<\/p>\n<h2 style=\"font-family: Georgia,serif;font-size: clamp(20px,3vw,27px);line-height: 1.15;margin: 0 0 16px;color: #20242a;font-weight: 600\">Using \u201cdirty\u201d mice to redefine osteoporosis pathogenesis<\/h2>\n<p style=\"font-size: 16px;color: #444b54;margin: 0 0 14px;max-width: 74ch\">Nearly all biomedical research runs on specific-pathogen-free (SPF) mice, which are immunologically na\u00efve (like a newborn!). So-called &#8216;dirty&#8217; mice \u2014 generated with natural microbial exposures (NME) derived from wild or pet-store mice \u2014 instead carry mature, chronically activated immune systems that mirror the human immune experience.<\/p>\n<p style=\"font-size: 16px;color: #444b54;margin: 0 0 14px;max-width: 74ch\">Bone and the immune system are deeply intertwined in bone marrow, where immune cells are generated. We treat osteoporosis as an immune-mediated disease, and we&#8217;re investigating whether the dirty mouse model can recapitulate naturally occurring human bone loss, as in post-menopausal osteoporosis.<\/p>\n<figure style=\"margin: 26px 0\"><img decoding=\"async\" style=\"width: 100%;height: auto;max-width: 820px;border-radius: 12px;display: block\" src=\"https:\/\/sites.edb.utexas.edu\/wp-content\/uploads\/sites\/185\/2024\/09\/BioRender-bone-phenotype-2-1.png\" alt=\"Summary of elevated inflammatory cytokines and the altered bone phenotype in dirty (NME) mice\" \/><\/figure>\n<p style=\"font-size: 16px;color: #444b54;margin: 0 0 14px;max-width: 74ch\">Over a longer horizon, we ask how the human skeleton evolved its fragility in the first place. The premise and its evolutionary backstory are laid out in <a style=\"color: #bf5700;font-weight: 600;text-decoration: underline\" href=\"https:\/\/doi.org\/10.3389\/fendo.2023.1168552\">Little-Letsinger &amp; Hamilton 2023<\/a>.<\/p>\n<p style=\"font-size: 16px;color: #444b54;margin: 0;max-width: 74ch\">This work is ongoing and deliberately collaborative \u2014 if you work with dirty mice, or want to, email <a style=\"color: #bf5700;font-weight: 600;text-decoration: underline\" href=\"mailto:s.little@austin.utexas.edu\">s.little@austin.utexas.edu<\/a>.<\/p>\n<\/section>\n<section style=\"background: #F5F3EE;border-radius: 16px;padding: 38px 30px;margin: 0 0 50px\">\n<p style=\"margin: 0 0 10px;font-size: 13px;letter-spacing: .12em;text-transform: uppercase;color: #bf5700;font-weight: 600\">Translational \u2014 in people<\/p>\n<h2 style=\"font-family: Georgia,serif;font-size: clamp(20px,3vw,27px);line-height: 1.15;margin: 0 0 16px;color: #20242a;font-weight: 600\">BoneFIT \u2014 bone health for the public<\/h2>\n<p style=\"font-size: 16px;color: #444b54;margin: 0 0 22px;max-width: 70ch\">BoneFIT is a new initiative launching with the Fitness Institute of Texas (FIT) at UT Austin that brings bone health directly to the community. It offers two things to the public:<\/p>\n<div style=\"display: flex;flex-wrap: wrap;gap: 16px;margin: 0 0 22px\">\n<div style=\"flex: 1 1 240px;min-width: 220px;background: #ffffff;border-radius: 12px;padding: 20px 22px\">\n<h3 style=\"font-family: Georgia,serif;font-size: 18px;margin: 0 0 8px;color: #20242a;font-weight: 600\">Bone density scans<\/h3>\n<p style=\"font-size: 14px;color: #444b54;margin: 0\">DXA, the clinical standard for measuring bone mineral density, now available direct to the public.<\/p>\n<\/div>\n<div style=\"flex: 1 1 240px;min-width: 220px;background: #ffffff;border-radius: 12px;padding: 20px 22px\">\n<h3 style=\"font-family: Georgia,serif;font-size: 18px;margin: 0 0 8px;color: #20242a;font-weight: 600\">Bone FIT training<\/h3>\n<p style=\"font-size: 14px;color: #444b54;margin: 0\">A structured exercise program built to strengthen bone, based on the clinically proven LIFTMORE program.<\/p>\n<\/div>\n<\/div>\n<p style=\"font-size: 16px;color: #444b54;margin: 0 0 22px;max-width: 70ch\">Beyond the service itself, BoneFIT creates a real-world population in which to study whether bone loading programs proven to treat osteoporosis and improve bone mineral density and strength can succeed outside of the clinic. In the long-term, we hope to work in tandem with BoneFIT to translate the lab&#8217;s mechanistic findings into evidence-based prevention.<\/p>\n<p><a style=\"display: inline-block;background: #BF5700;color: #ffffff;text-decoration: none;font-weight: 600;font-size: 15px;padding: 13px 24px;border-radius: 8px\" href=\"https:\/\/sites.edb.utexas.edu\/fit\/\">Visit the Fitness Institute of Texas<\/a><\/p>\n<\/section>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Our research We study osteoimmunology, an interdisciplinary field studying interactions between bone and the immune system, pairing mechanistic work in mice with translational research in people. Mechanistic \u2014 in mice Using \u201cdirty\u201d mice to redefine osteoporosis pathogenesis Nearly all biomedical research runs on specific-pathogen-free (SPF) mice, which are immunologically na\u00efve (like a newborn!). So-called &#8216;dirty&#8217; [&hellip;]<\/p>\n","protected":false},"author":260,"featured_media":0,"parent":0,"menu_order":1,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"class_list":["post-27","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/sites.edb.utexas.edu\/tol\/wp-json\/wp\/v2\/pages\/27","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sites.edb.utexas.edu\/tol\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/sites.edb.utexas.edu\/tol\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/sites.edb.utexas.edu\/tol\/wp-json\/wp\/v2\/users\/260"}],"replies":[{"embeddable":true,"href":"https:\/\/sites.edb.utexas.edu\/tol\/wp-json\/wp\/v2\/comments?post=27"}],"version-history":[{"count":29,"href":"https:\/\/sites.edb.utexas.edu\/tol\/wp-json\/wp\/v2\/pages\/27\/revisions"}],"predecessor-version":[{"id":259,"href":"https:\/\/sites.edb.utexas.edu\/tol\/wp-json\/wp\/v2\/pages\/27\/revisions\/259"}],"wp:attachment":[{"href":"https:\/\/sites.edb.utexas.edu\/tol\/wp-json\/wp\/v2\/media?parent=27"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}