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Alliance"],"accepted":{"date-parts":[[2026,9,2]]},"published-print":{"date-parts":[[2026,12]]},"abstract":"<jats:p>\n                    Scaffold integrity is essential for the activity of proteins that function through protein\u2013protein interactions rather than catalytic output. RAF1 exemplifies this duality: although it is a bona fide kinase and a core component of the MAPK cascade, its tumor-promoting role is largely kinase-independent, relying instead on scaffold-mediated suppression of apoptosis. Genetic\n                    <jats:italic>Raf1<\/jats:italic>\n                    ablation in KRAS-driven lung adenocarcinoma mouse models induces tumor regression without systemic toxicity, making it an attractive candidate for targeted protein degradation. Chemogenetic systems like the dTAG platform are widely used for preclinical target validation. Here, we generated a dTAG-RAF1 mouse model and showed that pharmacological degradation is efficient and systemically well tolerated but fails to reproduce the tumor regression observed upon genetic\n                    <jats:italic>Raf1<\/jats:italic>\n                    ablation. Mechanistically, the N-terminal FKBP12\n                    <jats:sup>F36V<\/jats:sup>\n                    tag (dTAG) perturbs the RAF1 interactome, including scaffold associations with apoptotic regulators, thereby blunting the phenotypic consequences of its degradation. These results establish scaffold integrity as a determinant of chemogenetic system fidelity and argue that degradation tools must be validated at the functional level, not only for target elimination, before assessing their therapeutic relevance.\n                  <\/jats:p>","DOI":"10.26508\/lsa.202603839","type":"journal-article","created":{"date-parts":[[2026,9,3]],"date-time":"2026-09-03T06:21:30Z","timestamp":1788416490000},"page":"e202603839","update-policy":"https:\/\/doi.org\/10.26508\/lsa.crossmarkpolicy","source":"Crossref","is-referenced-by-count":0,"title":["RAF1 scaffold integrity shapes chemogenetic degradation outcomes in KRAS-driven lung cancer models"],"prefix":"10.26508","volume":"9","author":[{"given":"Laura","family":"de-la-Puente-Ovejero","sequence":"first","affiliation":[{"id":[{"id":"https:\/\/ror.org\/00bvhmc43","id-type":"ROR","asserted-by":"publisher"}],"name":"Experimental Oncology Group, Tumor Biology Programme, Centro Nacional de Investigaciones 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