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- W4309989315 endingPage "14610" @default.
- W4309989315 startingPage "14610" @default.
- W4309989315 abstract "In the last fifty years, large efforts have been deployed in basic research, clinical oncology, and clinical trials, yielding an enormous amount of information regarding the molecular mechanisms of cancer and the design of effective therapies. The knowledge that has accumulated underpins the complexity, multifactoriality, and heterogeneity of cancer, disclosing novel landscapes in cancer biology with a key role of genome plasticity. Here, we propose that cancer onset and progression are determined by a stress-responsive epigenetic mechanism, resulting from the convergence of upregulation of LINE-1 (long interspersed nuclear element 1), the largest family of human retrotransposons, genome damage, nuclear lamina fragmentation, chromatin remodeling, genome reprogramming, and autophagy activation. The upregulated expression of LINE-1 retrotransposons and their protein products plays a key role in these processes, yielding an increased plasticity of the nuclear architecture with the ensuing reprogramming of global gene expression, including the reactivation of embryonic transcription profiles. Cancer phenotypes would thus emerge as a consequence of the unscheduled reactivation of embryonic gene expression patterns in an inappropriate context, triggering de-differentiation and aberrant proliferation in differentiated cells. Depending on the intensity of the stressing stimuli and the level of LINE-1 response, diverse degrees of malignity would be generated." @default.
- W4309989315 created "2022-11-30" @default.
- W4309989315 creator A5006579292 @default.
- W4309989315 creator A5015074028 @default.
- W4309989315 creator A5027416476 @default.
- W4309989315 date "2022-11-23" @default.
- W4309989315 modified "2023-10-05" @default.
- W4309989315 title "An Epigenetic LINE-1-Based Mechanism in Cancer" @default.
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