In the realm of cancer therapeutics, targeting the hypoxia-inducible factor (HIF) pathway has emerged as a promising strategy. This study delves into the intricate web of HIF-associated mechanisms, exploring avenues for future anticancer therapies. Framing the investigation within the broader context of cancer progression and hypoxia response, this article aims to decipher the pivotal role played by HIF in regulating genes influencing angiogenesis, cell proliferation, and glucose metabolism. Employing diverse approaches such as HIF inhibitors, anti-angiogenic therapies, and hypoxia-activated prodrugs, the research methodologically intervenes at different nodes of the HIF pathway. Findings showcase the efficacy of agents like EZN-2968, Minnelide, and Acriflavine in modulating HIF-1α protein synthesis and destabilizing HIF-1, providing preliminary proof of HIF-1α mRNA modulation and antitumor activity. However, challenges, including toxicity, necessitate continued exploration and development, as exemplified by ongoing clinical trials. This article concludes by emphasizing the potential of targeted HIF therapies in disrupting cancer-related signaling pathways.

The proto-oncogene Rearranged During Transfection (RET) encodes a receptor tyrosine kinase that is essential for neural, renal, and thyroid development. Pathogenic RET alterations, including mutations and fusions, drive oncogenesis, most notably medullary and papillary thyroid carcinomas and non-small cell lung cancer, by constitutively activating downstream RAS–MAPK, PI3K–AKT, and JAK–STAT signaling. Early multi-kinase inhibitors such as vandetanib and cabozantinib demonstrated modest efficacy with significant toxicity, whereas the selective RET inhibitors selpercatinib and pralsetinib have achieved improved response rates and tolerability. However, resistance remains a key clinical challenge, arising from secondary RET mutations and bypass signaling via MET or EGFR pathways. Continued investigation into next-generation inhibitors and rational combination therapies aims to overcome resistance and optimize treatment sequencing, advancing precision oncology for RET-altered malignancies. Nonetheless, resistance, driven by secondary mutations and bypass signaling, presents a major therapeutic challenge. Ongoing development of next-generation inhibitors and combination strategies aims to overcome resistance and improve patient outcomes.