MAPK/ERK Signaling in Tumorigenesis: mechanisms of growth, invasion, and angiogenesis

The significance of ERK1/2 in the process of tumorigenesis has attracted considerable interest owing to its essential role in a variety of cellular mechanisms, especially in relation to cancer initiation and progression. The Ras-Raf-MAPK signaling cascade, responsible for the activation of ERK1/2, plays a vital role in the regulation of tumor cell growth, invasion, and the formation of new blood vessels. Recent research has underscored the intricate nature of the mechanisms by which ERK1/2 is activated and the subsequent implications for tumor biology, illustrating both the oncogenic capabilities and the therapeutic hurdles linked to the modulation of this pathway. Despite progress in the comprehension of ERK1/2 signaling, numerous challenges persist, including the emergence of resistance to therapies that target this pathway, alongside the necessity for more selective inhibitors. This review intends to consolidate the most recent scientific discoveries pertaining to ERK1/2 and its regulatory influence within the Ras-Raf-MAPK pathway, offering insights into how these interactions facilitate tumor proliferation and metastasis. By clarifying the connection between ERK1/2 signaling and tumor biology, this article aspires to contribute to the formulation of novel therapeutic approaches aimed at interrupting this pathway in the context of cancer treatment.