The Five Phases of cancer cells

Beyond identifying individual malignant hallmarks, the central challenge in cancer biology is to uncover the fundamental organizing principles that underlie the interactive nature of cancer cell behavior. Here, we transform the ancient Wuxing theory into a mechanistically grounded, hypothesis-generating biological framework that conceptualizes cancer cell biology around five mutually interacting processes: Pliability, Hybridity, Aggressivity, Sociability, and Evolutivity (PHASE). By engaging in the circuit of mutual promotion and restriction, these phases form an integrated regulatory system that provides a rationale for organizing diverse malignant properties. Within this framework, cancer traits emerge as context-dependent manifestations of the proposed core interactions. Collectively, PHASE offers a complementary perspective for understanding disease progression that could advance interaction-guided therapeutic strategies to target human cancers.