Journal
SIGNAL TRANSDUCTION AND TARGETED THERAPY
Volume 6, Issue 1, Pages -Publisher
SPRINGERNATURE
DOI: 10.1038/s41392-021-00828-5
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Funding
- National Natural Science Foundation of China [31961160727, 81773085, 82073196, 81973339, 81873455, 81803551]
- Guangdong Natural Science Research Grant [2021A1515011158]
- Fundamental Research Funds for the Central Universities [21620429]
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The PI3K/Akt signaling pathway plays a crucial role in cancer, and targeting inhibitors against it may aid in drug discovery. Additionally, combining pathway inhibitors with other cancer treatment strategies could be an effective approach to solving therapeutic dilemmas.
The phosphatidylinositol 3-kinase (PI3K)/Akt pathway plays a crucial role in various cellular processes and is aberrantly activated in cancers, contributing to the occurrence and progression of tumors. Examining the upstream and downstream nodes of this pathway could allow full elucidation of its function. Based on accumulating evidence, strategies targeting major components of the pathway might provide new insights for cancer drug discovery. Researchers have explored the use of some inhibitors targeting this pathway to block survival pathways. However, because oncogenic PI3K pathway activation occurs through various mechanisms, the clinical efficacies of these inhibitors are limited. Moreover, pathway activation is accompanied by the development of therapeutic resistance. Therefore, strategies involving pathway inhibitors and other cancer treatments in combination might solve the therapeutic dilemma. In this review, we discuss the roles of the PI3K/Akt pathway in various cancer phenotypes, review the current statuses of different PI3K/Akt inhibitors, and introduce combination therapies consisting of signaling inhibitors and conventional cancer therapies. The information presented herein suggests that cascading inhibitors of the PI3K/Akt signaling pathway, either alone or in combination with other therapies, are the most effective treatment strategy for cancer.
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