ArticleNature cell biology2026
Integrated stress response couples mitochondrial fitness with lineage reprogramming to drive cancer evolution.
Article in Nature cell biology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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16 authors.
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Abstract
Tumour progression towards dedifferentiated cell clusters plays a critical role in intratumour heterogeneity and therapy resistance. While tumour microenvironmental stress has been implicated, the underlying mechanisms remain poorly defined. Using mouse models of lung adenocarcinoma, we demonstrate that activation of the integrated stress response (ISR)-marked by phosphorylation of eIF2 (p-eIF2) and ATF4 induction-drives tumour heterogeneity. ISR activation facilitates the emergence of high-plasticity, undifferentiated and pre-epithelial-to-mesenchymal transition clusters characterized by elevated ATF4 and MYC activity. This process is MYC dependent and involves ISR-mediated repression of NKX2-1, a key determinant of alveolar identity, and induction of CHCHD10, a regulator of mitochondrial integrity and metabolic fitness. Disruption of the p-eIF2-ATF4 axis induces mitochondrial dysfunction, limits dedifferentiation and suppresses tumour growth. In human lung adenocarcinoma, ISR-driven dedifferentiation correlates with advanced disease and poor prognosis, identifying the ISR as a central driver of lineage reprogramming and metabolic fitness in tumour progression.
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