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Related Experiment Video

Updated: Jun 1, 2026

Effect of Anti-c-fms Antibody on Osteoclast Formation and Proliferation of Osteoclast Precursor In Vitro

Effect of Anti-c-fms Antibody on Osteoclast Formation and Proliferation of Osteoclast Precursor In Vitro

Published on: March 18, 2019

Synovial colony-stimulating factor-1 mRNA expression in diffuse pigmented villonodular synovitis.

B Molena¹, P Sfriso, F Oliviero

¹Department of Clincal and Experimental Medicine, Italy.

Clinical and Experimental Rheumatology

|June 7, 2011

Summary

This summary is machine-generated.

Colony-stimulating factor-1 (CSF-1) is significantly elevated in pigmented villonodular synovitis (PVNS) of the knee. This suggests CSF-1 may be a therapeutic target for this aggressive condition.

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Last Updated: Jun 1, 2026

Effect of Anti-c-fms Antibody on Osteoclast Formation and Proliferation of Osteoclast Precursor In Vitro

Effect of Anti-c-fms Antibody on Osteoclast Formation and Proliferation of Osteoclast Precursor In Vitro

Published on: March 18, 2019

Area of Science:

Molecular Biology
Rheumatology
Oncology

Background:

Pigmented villonodular synovitis (PVNS) is a rare, aggressive neoplastic proliferation of the synovium.
The molecular mechanisms driving PVNS pathogenesis remain incompletely understood.

Purpose of the Study:

To investigate the role of colony-stimulating factor-1 (CSF-1) in the pathogenesis of diffuse-type giant cell tumors (PVNS) of the knee.
To compare CSF-1 gene expression in PVNS with other knee joint pathologies.

Main Methods:

Synovial biopsies were obtained from patients with PVNS, meniscal tears, and persistent gonarthritis.
Colony-stimulating factor-1 (CSF-1) gene expression was quantified using reverse transcription quantitative polymerase chain reaction (RT-qPCR).

Main Results:

CSF-1 mRNA expression varied across the studied knee conditions.
Significantly higher CSF-1 mRNA levels were detected in the synovial tissue of PVNS patients compared to those with meniscal tears or gonarthritis.

Conclusions:

The findings highlight a crucial role for CSF-1 in the disease process of PVNS.
Targeting the CSF-1/CSF-1 receptor pathway presents a potential therapeutic strategy for PVNS.