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Updated: Apr 2, 2026

Three-Dimensional Bone Extracellular Matrix Model for Osteosarcoma
Published on: April 12, 2019
Identification and validation of the potential therapeutic value of CASK in osteosarcoma: a computational analysis
Hongjuan Yang1, Weiying Zhong1, Danping Shen1
1Department of Orthopaedics, Jiaxing University Affiliated Hospital, The First Hospital of Jiaxing, Jiaxing, China.
Introduction:
Currently, identifying new therapeutic targets in clinical practice is crucial for improving the treatment of osteosarcoma. The abnormal expression of calcium/calmodulin-dependent serine protein kinase (CASK) plays an important role in the tumorigenesis of many cancers; however, the role of CASK in the potential therapeutic value of osteosarcoma has not been reported.
Methods:
The Gene Expression Omnibus (GEO) database was used to analyze the expression levels of CASK in osteosarcoma patients. Cell experiments validated the role of CASK in osteosarcoma cells and revealed the potential mechanism of action of CASK from three aspects: immunity, pathogenic gene expression, and protein interaction.
Results:
The results showed that CASK was significantly upregulated in osteosarcoma samples. Inhibiting the expression of CASK can significantly promote cell apoptosis and inhibit the cycle progression of osteosarcoma cells. The high expression of CASK is mainly enriched in the immune system process, the JAK/STAT signaling pathway. There is a significant positive correlation between CASK and Macrophages_M2. Changes in CASK expression levels may activate the JAK/STAT signaling pathway by affecting the immunity of Macrophages_M2, thereby regulating apoptosis and cell cycle progression in osteosarcoma cells.
Discussion:
In conclusion, CASK may be a potential therapeutic target for osteosarcoma patients.
Insights
Calcium/calmodulin-dependent serine protein kinase (CASK) is upregulated in osteosarcoma. Inhibiting CASK shows therapeutic potential by promoting apoptosis and affecting immune cells like Macrophages_M2.
Area of Science:
- Oncology
- Molecular Biology
- Immunology
Background:
- Identifying novel therapeutic targets is critical for effective osteosarcoma treatment.
- Calcium/calmodulin-dependent serine protein kinase (CASK) is implicated in various cancers but its role in osteosarcoma is unexplored.
Purpose of the Study:
- To investigate the expression and functional role of CASK in osteosarcoma.
- To explore CASK as a potential therapeutic target for osteosarcoma.
Main Methods:
- Analysis of CASK expression in osteosarcoma patient samples using the Gene Expression Omnibus (GEO) database.
- In vitro cell experiments to elucidate CASK's mechanism of action, focusing on immunity, gene expression, and protein interactions.
Main Results:
- CASK expression is significantly elevated in osteosarcoma tissues.
- CASK inhibition induces osteosarcoma cell apoptosis and cell cycle arrest.
- High CASK expression correlates with immune processes, specifically Macrophages_M2 and the JAK/STAT signaling pathway.
Conclusions:
- CASK upregulation in osteosarcoma suggests its involvement in tumorigenesis.
- CASK may regulate osteosarcoma progression through immune modulation via Macrophages_M2 and the JAK/STAT pathway.
- CASK represents a promising therapeutic target for osteosarcoma.

