{"id":50081,"date":"2025-12-05T13:21:35","date_gmt":"2025-12-05T12:21:35","guid":{"rendered":"https:\/\/inmuno.es\/index.php\/2025\/12\/05\/single-cell-analysis-identifies-inflammatory-and-tissue-remodeling-tumor-associated-macrophages-distinct-from-m1-m2-paradigmeric-lopez-huerta-on-5-de-december-de-2025-at-1100\/"},"modified":"2025-12-05T13:21:35","modified_gmt":"2025-12-05T12:21:35","slug":"single-cell-analysis-identifies-inflammatory-and-tissue-remodeling-tumor-associated-macrophages-distinct-from-m1-m2-paradigmeric-lopez-huerta-on-5-de-december-de-2025-at-1100","status":"publish","type":"post","link":"https:\/\/inmuno.es\/index.php\/2025\/12\/05\/single-cell-analysis-identifies-inflammatory-and-tissue-remodeling-tumor-associated-macrophages-distinct-from-m1-m2-paradigmeric-lopez-huerta-on-5-de-december-de-2025-at-1100\/","title":{"rendered":"Single cell analysis identifies inflammatory and tissue remodeling tumor associated macrophages distinct from M1\/M2 paradigm\u200bEric L\u00f3pez-Huerta   on 5 de December de 2025 at 11:00"},"content":{"rendered":"<div>\n<p><b>J Leukoc Biol<\/b>. 2025 Dec 5:qiaf176. doi: 10.1093\/jleuko\/qiaf176. Online ahead of print.<\/p>\n<p><b>ABSTRACT<\/b><\/p>\n<p>Tumor-associated macrophages (TAM) exert both pro- and anti-tumoral functions that influence cancer progression and patient prognosis. However, single-cell RNA sequencing (scRNA-seq) studies have revealed that TAM heterogeneity remains incompletely characterized. By performing an unbiased, integrated in silico analyses of publicly available scRNA-seq datasets, comprising samples from blood, tumor, and non-tumoral mammary tissue (NTMT) from both breast cancer (BRCA) patients and healthy individuals, we identified seven transcriptional signatures corresponding to distinct TAM subsets, exhibiting unique functional profiles, including heightened interferon responses, scavenging, and matrix remodeling, the latter two being characteristic of tissue repair. Notably, none of these subsets aligned with the M1\/M2 classification of macrophage (M\u03c6) polarization. Interferon-associated genes were predominantly enriched in blood monocytes, whereas tissue-repair-associated-signatures were more abundant in tissue resident M\u03c6, suggesting that TAMs bearing these signatures resemble monocyte-derived or tissue-resident M\u03c6s, respectively. Importantly, TAM subsets expressing interferon-associated genes were associated with improved survival compared to tissue-repairing TAMs in a BRCA cohort from The Cancer Genome Atlas (TCGA). Additionally, one signature was heightened in peripheral monocytes from BRCA patients compared with healthy individuals, which was experimentally validated in a pilot study of Mexican BRCA patients. We concluded that these signatures are a closer description of TAM heterogeneity in BRCA.<\/p>\n<p>PMID:<a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/41347255\/?utm_source=SimplePie&amp;utm_medium=rss&amp;utm_content=8405628&amp;ff=20251205072133&amp;v=2.18.0.post22+67771e2\">41347255<\/a> | DOI:<a href=\"https:\/\/doi.org\/10.1093\/jleuko\/qiaf176\">10.1093\/jleuko\/qiaf176<\/a><\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>J Leukoc Biol. 2025 Dec 5:qiaf176. doi: 10.1093\/jleuko\/qiaf176. Online ahead of print. ABSTRACT Tumor-associated macrophages (TAM) exert both pro- and anti-tumoral functions that influence cancer progression and patient prognosis. However, single-cell RNA sequencing (scRNA-seq) studies have revealed that TAM heterogeneity remains incompletely characterized. By performing an unbiased, integrated in silico analyses of publicly available scRNA-seq &#8230; <a title=\"Single cell analysis identifies inflammatory and tissue remodeling tumor associated macrophages distinct from M1\/M2 paradigm\u200bEric L\u00f3pez-Huerta   on 5 de December de 2025 at 11:00\" class=\"read-more\" href=\"https:\/\/inmuno.es\/index.php\/2025\/12\/05\/single-cell-analysis-identifies-inflammatory-and-tissue-remodeling-tumor-associated-macrophages-distinct-from-m1-m2-paradigmeric-lopez-huerta-on-5-de-december-de-2025-at-1100\/\" aria-label=\"Read more about Single cell analysis identifies inflammatory and tissue remodeling tumor associated macrophages distinct from M1\/M2 paradigm\u200bEric L\u00f3pez-Huerta   on 5 de December de 2025 at 11:00\">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":[86,42],"tags":[],"class_list":["post-50081","post","type-post","status-publish","format-standard","hentry","category-journal-of-leukocyte-biology","category-publicaciones"],"_links":{"self":[{"href":"https:\/\/inmuno.es\/index.php\/wp-json\/wp\/v2\/posts\/50081","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=50081"}],"version-history":[{"count":0,"href":"https:\/\/inmuno.es\/index.php\/wp-json\/wp\/v2\/posts\/50081\/revisions"}],"wp:attachment":[{"href":"https:\/\/inmuno.es\/index.php\/wp-json\/wp\/v2\/media?parent=50081"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/inmuno.es\/index.php\/wp-json\/wp\/v2\/categories?post=50081"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/inmuno.es\/index.php\/wp-json\/wp\/v2\/tags?post=50081"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}