{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,11,10]],"date-time":"2026-11-10T02:18:01Z","timestamp":1794277081802,"version":"4.9.0"},"reference-count":106,"publisher":"Frontiers Media SA","license":[{"start":{"date-parts":[[2026,6,26]],"date-time":"2026-06-26T00:00:00Z","timestamp":1782432000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["frontiersin.org"],"crossmark-restriction":true},"short-container-title":["Front. Immunol."],"abstract":"<jats:p>\n                    CD8\n                    <jats:sup>+<\/jats:sup>\n                    T cell exhaustion is a conserved differentiation program induced by persistent antigen stimulation and originally characterized in chronic infection. In cancer, this program is actively reinforced and stabilized by the tumor microenvironment. Here, we examine how tumors convert a physiological adaptation to chronic stimulation into a deeply entrenched dysfunctional state. Sustained TCR signaling initiates exhaustion through NFAT- and TOX-dependent transcriptional remodeling, but tumor-specific extrinsic pressures, including hypoxia, metabolic competition, ionic imbalance, mechanical stress, and heterogeneous antigen exposure, amplify and stabilize this program. These environmental cues converge on transcription factor networks such as IRF, BATF, NR4A, and NFAT5, which integrate chronic signaling with stress-adaptive responses and progressively restrict effector potential. Exhaustion in tumors becomes epigenetically imprinted. Exhaustion-specific enhancer landscapes persist despite PD-1 blockade, reflecting a lineage-like state enforced by chromatin remodeling factors such as TOX. Thus, checkpoint inhibition transiently restores function without fully reprogramming cellular identity. We propose that tumor-induced exhaustion arises from the layered convergence of chronic antigen signaling and microenvironmental reinforcement, culminating in chromatin fixation. Understanding this stabilization process reframes therapeutic strategies: effective cancer immunotherapy will likely require combinatorial approaches that target not only inhibitory receptors but also metabolic resilience, stress-sensing pathways, and epigenetic architecture. By dissecting how tumors convert adaptive restraint into durable dysfunction, new avenues may emerge to destabilize exhaustion and restore durable antitumor immunity.\n                  <\/jats:p>","DOI":"10.3389\/fimmu.2026.1862431","type":"journal-article","created":{"date-parts":[[2026,6,26]],"date-time":"2026-06-26T04:35:24Z","timestamp":1782448524000},"update-policy":"https:\/\/doi.org\/10.3389\/crossmark-policy","source":"Crossref","is-referenced-by-count":1,"title":["Tumor-driven stabilization  of CD8+ T cell exhaustion and implications for cancer immunotherapy"],"prefix":"10.3389","volume":"17","author":[{"given":"Romane","family":"Thouenon","sequence":"first","affiliation":[{"name":"Department of Fundamental Oncology, University of Lausanne","place":["Lausanne, Switzerland"]},{"name":"Ludwig Institute for Cancer Research, University of Lausanne","place":["Lausanne, Switzerland"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Marco","family":"Ongaro","sequence":"additional","affiliation":[{"name":"Department of Fundamental Oncology, University of Lausanne","place":["Lausanne, Switzerland"]},{"name":"Ludwig Institute for Cancer Research, University of Lausanne","place":["Lausanne, Switzerland"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Gr\u00e9gory","family":"Verdeil","sequence":"additional","affiliation":[{"name":"Department of Fundamental Oncology, University of Lausanne","place":["Lausanne, Switzerland"]},{"name":"Ludwig Institute for Cancer Research, University of Lausanne","place":["Lausanne, Switzerland"]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1965","published-online":{"date-parts":[[2026,6,26]]},"reference":[{"key":"B1","doi-asserted-by":"publisher","DOI":"10.1038\/ni.2035","article-title":"T cell exhaustion","volume":"12","author":"Wherry","year":"2011","journal-title":"Nat 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