COFILINA-1 E A REPROGRAMAÇÃO METABÓLICA EM ADENOCARCINOMAS PULMONARES: UM BIOMARCADOR PARA NOVAS PERSPECTIVAS TERAPÊUTICAS?
COFILINA-1 E A REPROGRAMAÇÃO METABÓLICA EM ADENOCARCINOMAS PULMONARES: UM BIOMARCADOR PARA NOVAS PERSPECTIVAS TERAPÊUTICAS?
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DOI: https://doi.org/10.22533/at.ed.8631825010812
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Palavras-chave: Adenocarcinoma pulmonar, cofilina-1, biomarcador, reprogramação metabólica.
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Keywords: lung adenocarcinoma, cofilin-1, biomarker, metabolic reprogramming
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Abstract: Lung cancer, the world's leading cause of cancer mortality, is characterized by significant molecular heterogeneity and a high rate of resistance to established therapies. Non-small cell lung cancer (NSCLC), which accounts for approximately 85% of cases, encompasses adenocarcinomas, squamous cell carcinomas, and large cell carcinomas, which exhibit significant differences in etiology, progression, and therapeutic response. In recent years, advances in genetic sequencing platforms have identified mutations in genes such as EGFR, KRAS, ALK, and ROS1, guiding the use of targeted therapies such as tyrosine kinase inhibitors (TKIs). Despite these benefits, acquired resistance remains a clinical obstacle, requiring more comprehensive therapeutic approaches. In this context, metabolic reprogramming in NSCLC stands out as one of the hallmarks of tumor proliferation, evasion of cell death, and invasiveness. Alterations in glycolysis, glutamine metabolism, β-oxidation, and oxidative phosphorylation are modulated by classical oncogenes, but also depend on regulators of mitochondrial dynamics, among which the protein cofilin-1 (CFL1) stands out. Originally described as a regulator of the actin cytoskeleton, cofilin-1 plays critical roles in mitochondrial remodeling, the response to oxidative stress, and the control of apoptosis. Its translocation to mitochondria can trigger fission, cytochrome c release, and cell death. However, paradoxically, elevated CFL1 levels in tumors are associated with proliferation, metastasis, and resistance to chemo-, radio-, and immunotherapy. Accumulating evidence positions cofilin-1 as a link between metabolic dysregulation and tumor adaptation, influencing bioenergetic vulnerabilities and resistance mechanisms. Thus, its exploration as a biomarker and therapeutic target can expand the frontiers of precision oncology, favoring combinatorial strategies that integrate metabolic inhibitors, TKIs, and immunotherapy. Understanding cofilin-1 at the interface between metabolism and cell survival offers new perspectives for overcoming current limitations in lung cancer treatment.
- Pedro Augusto Chikoski Albrecht
- Bruna Klein Brun
- Fábio Klamt