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Updated: Apr 17, 2026

Three-Dimensional Bone Extracellular Matrix Model for Osteosarcoma
Published on: April 12, 2019
PI3K/Akt signaling in osteosarcoma
Jian Zhang1, Xiao-Hua Yu2, Yi-Guo Yan1
1Department of Spine Surgery, The First Affiliated Hospital, University of South China, Hengyang, Hunan 421001, China.
Abstract:
Osteosarcoma (OS) is the most common nonhematologic bone malignancy in children and adolescents. Despite the advances of adjuvant chemotherapy and significant improvement of survival, the prognosis remains generally poor. As such, the search for more effective anti-OS agents is urgent. The phosphatidylinositol 3-kinase (PI3K)/Akt pathway is thought to be one of the most important oncogenic pathways in human cancer. An increasing body of evidence has shown that this pathway is frequently hyperactivated in OS and contributes to disease initiation and development, including tumorigenesis, proliferation, invasion, cell cycle progression, inhibition of apoptosis, angiogenesis, metastasis and chemoresistance. Inhibition of this pathway through small molecule compounds represents an attractive potential therapeutic approach for OS. The aim of this review is to summarize the roles of the PI3K/Akt pathway in the development and progression of OS, and to highlight the therapeutic potential of targeting this signaling pathway. Knowledge obtained from the application of these compounds will help in further understanding the pathogenesis of OS and designing subsequent treatment strategies.
Insights
Targeting the PI3K/Akt pathway offers a promising strategy for treating osteosarcoma (OS), a common childhood bone cancer. Inhibiting this pathway could lead to more effective anti-OS agents and improved patient outcomes.
Area of Science:
- Oncology
- Molecular Biology
- Biochemistry
Background:
- Osteosarcoma (OS) is the most prevalent nonhematologic bone malignancy in pediatric and adolescent populations.
- Despite advancements in chemotherapy, patient prognosis for OS remains poor, necessitating novel therapeutic strategies.
- The phosphatidylinositol 3-kinase (PI3K)/Akt signaling pathway is frequently hyperactivated in OS and drives tumor progression.
Purpose of the Study:
- To review the critical roles of the PI3K/Akt pathway in osteosarcoma initiation and development.
- To highlight the therapeutic potential of targeting the PI3K/Akt pathway in osteosarcoma treatment.
- To elucidate how targeting this pathway can advance understanding of OS pathogenesis and treatment design.
Main Methods:
- Literature review of studies investigating the PI3K/Akt pathway in osteosarcoma.
- Analysis of evidence linking PI3K/Akt hyperactivation to OS characteristics like proliferation, invasion, and chemoresistance.
- Examination of small molecule inhibitors targeting the PI3K/Akt pathway for anti-OS potential.
Main Results:
- The PI3K/Akt pathway is implicated in multiple facets of OS progression, including tumorigenesis, metastasis, and resistance to chemotherapy.
- Inhibition of the PI3K/Akt pathway has demonstrated potential as a therapeutic approach for osteosarcoma.
- Small molecule inhibitors targeting this pathway are under investigation for their efficacy against OS.
Conclusions:
- The PI3K/Akt pathway is a key driver in osteosarcoma development and progression.
- Targeting the PI3K/Akt pathway represents a promising therapeutic avenue for osteosarcoma.
- Further research into PI3K/Akt inhibitors will refine OS treatment strategies and deepen pathogenetic understanding.
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