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Updated: May 6, 2026

Skeletal Phenotype Analysis of a Conditional Stat3 Deletion Mouse Model
Published on: July 3, 2020
Integrative genomic and functional characterization of ADAMTS3 reveals its inflammatory regulation via NF-κB and
Ehed Muhammed Aymaz1, Meltem Alper2, Feyza Nur Sav3
1İstinye University Graduate Education Institute Molecular Oncology Istanbul Turkey.
Abstract:
Osteosarcoma (OS) is an aggressive bone malignancy characterized by genomic instability and extensive extracellular matrix (ECM) remodeling. Members of the ADAMTS family are matrix-associated proteases implicated in tumorigenesis; however, their roles in OS remain poorly defined. This study provides a comprehensive genomic, transcriptomic, and functional analysis of the ADAMTSs in OS, with particular focus on ADAMTS-3. Copy number alterations and mRNA expressions of ADAMTS genes were analyzed using the TCGA datasets. Gene set enrichment analysis and co-expression analyses identified biological processes associated with ADAMTS-3. Mechanistic studies investigated tumor necrosis factor-alpha (TNF-α) regulation of ADAMTS-3 in OS cells. Genomic profiling revealed frequent amplification and high mRNA expression of ADAMTS4, ADAMTS12, ADAMTS16, and ADAMTS17, indicating potential oncogenic activity. ADAMTS-3 was markedly overexpressed in OS tissues and cell lines, showing strong positive correlations with inflammatory (IL6, STAT3, NF-κB) and matrix-remodeling (MMP2, MMP9) genes. Functional enrichment indicated that ADAMTS-3 is associated with ECM organization, immune response regulation, and epithelial-mesenchymal transition. Mechanistically, TNF-α induced ADAMTS-3 transcription via activation of MEK, PI3K, JNK, and NF-κB pathways, with STAT3 and NF-κB by enhancing promoter activity. These findings identify ADAMTS-3 as an inflammation-responsive gene that links inflammatory signaling to ECM remodeling and tumor invasiveness in OS, representing a potential molecular bridge.
Insights
ADAMTS-3, an inflammation-responsive gene, is overexpressed in osteosarcoma (OS). It links inflammatory signals to extracellular matrix remodeling and tumor invasiveness, offering a potential therapeutic target for this aggressive bone cancer.
Area of Science:
- Oncology
- Molecular Biology
- Biochemistry
Background:
- Osteosarcoma (OS) is an aggressive bone cancer with genomic instability and extensive extracellular matrix (ECM) remodeling.
- The ADAMTS family of proteases is involved in tumorigenesis, but their specific roles in OS are not well understood.
Purpose of the Study:
- To comprehensively analyze the genomic, transcriptomic, and functional roles of ADAMTS family members in osteosarcoma.
- To investigate the specific role and regulation of ADAMTS-3 in OS.
Main Methods:
- Analysis of TCGA datasets for copy number alterations and mRNA expression of ADAMTS genes.
- Gene set enrichment and co-expression analyses to identify biological processes linked to ADAMTS-3.
- Mechanistic studies on TNF-α regulation of ADAMTS-3 in OS cells.
Main Results:
- Frequent amplification and high mRNA expression of ADAMTS4, ADAMTS12, ADAMTS16, and ADAMTS17 were observed, suggesting oncogenic roles.
- ADAMTS-3 was significantly overexpressed in OS tissues and cell lines, correlating with inflammatory and matrix-remodeling genes (IL6, STAT3, NF-κB, MMP2, MMP9).
- ADAMTS-3 is associated with ECM organization, immune response regulation, and epithelial-mesenchymal transition; TNF-α induces its transcription via MEK, PI3K, JNK, and NF-κB pathways.
Conclusions:
- ADAMTS-3 is an inflammation-responsive gene in osteosarcoma.
- ADAMTS-3 acts as a molecular bridge, connecting inflammatory signaling to ECM remodeling and tumor invasiveness.
- ADAMTS-3 represents a potential therapeutic target for osteosarcoma.
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