Beyond mutation burden: biological termination as a systems perspective on cancer

Cancer is traditionally viewed as a genetic disease driven by the accumulation of mutations that disrupt normal cellular regulation. While this framework has generated profound biological insights, several observations remain incompletely explained, including the presence of driver mutations in normal tissues, the occurrence of highly aggressive tumors with low mutational burdens, and the convergence of genetically diverse cancers toward similar phenotypic states. This article proposes that malignant transformation may be understood as a progressive failure of biological termination mechanisms responsible for constraining developmental, proliferative, and adaptive cellular programs. Drawing upon concepts from information theory, systems biology, developmental biology, and regulatory network dynamics, cancer is interpreted as a persistent pathological state in which biological processes that would normally terminate remain active beyond their physiological context. This framework generates several testable predictions, including the emergence of aggressive tumors despite limited mutational complexity, convergence of distinct genetic alterations upon common regulatory attractors, and the potential prognostic value of measures of informational and regulatory disorganization. Together, these observations suggest that malignant behavior may depend not only on genetic alterations themselves but also on the organizational states through which biological information is interpreted and executed.