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Updated: Oct 17, 2025
A Three-dimensional Tissue Culture Model to Study Primary Human Bone Marrow and its Malignancies
Published on: March 8, 2014
Ultrastructural changes in giant cell tumor of bone cultured cells exposed to quercetin
Eréndira Estrada-Villaseñor1, Andres Delgado-Cedillo2, Alma Hernández-Pérez3
1Pathology Service, National Institute of Rehabilitation Luis Guillermo Ibarra Ibarra, México City, México.
Abstract:
Giant cell tumor of bone (GCTB) is a primary bone tumor that affects skeletally mature people and whose main treatment is surgical. Because there are few pharmacological alternatives for the treatment of this tumor to find other molecules or compounds that could be potential therapeutic agents is desirable. Quercetin is a flavonoid with described antitumoral effect in different types of cancer cell lines that could be a possible option in GCTB treatment. However, there is no literature about the effect of quercetin on GCTB. In the present paper, we reported the ultrastructural changes in GCTB cells exposed to quercetin and also determined the expression of RIP1K, Caspase 3 and Caspase 8 on the exposed cells. For this purpose, GCTB sample was obtained from one patient and cultured. Quercetin affected all the histological components of the GCTB. The ultrastructural changes consisted mainly in necroptosis, autophagocytosis and secondary necrosis. This is the first report about quercetin effects on giant cell tumor of bone cultured cells. Further studies in other models could be done to support the use of quercetin as a complementary treatment in giant cell tumor of bone.Abbreviations: Giant cell tumor of bone (GCTB); transmission electron microscopy (TEM); reverse transcription - polymerase chain reaction (RT-PCR); receptor interacting protein kinase 1 (RIP1K); Dulbecco's Modified Eagle's Medium (DMEM).
Insights
Quercetin, a flavonoid, induces cell death pathways like necroptosis and autophagy in giant cell tumor of bone (GCTB) cells. This study explores quercetin as a potential therapeutic agent for GCTB, a bone tumor typically treated with surgery.
Area of Science:
- Oncology
- Biochemistry
- Cell Biology
Background:
- Giant cell tumor of bone (GCTB) is a primary bone tumor predominantly affecting skeletally mature individuals.
- Current primary treatment for GCTB is surgical, with limited pharmacological alternatives.
- Quercetin, a flavonoid, exhibits known antitumoral effects in various cancer cell lines.
Purpose of the Study:
- To investigate the effects of quercetin on giant cell tumor of bone (GCTB) cells.
- To determine the ultrastructural changes and expression of key proteins (RIP1K, Caspase 3, Caspase 8) in GCTB cells treated with quercetin.
Main Methods:
- Culturing of a giant cell tumor of bone (GCTB) sample obtained from a patient.
- Exposure of GCTB cells to quercetin.
- Analysis of ultrastructural changes using transmission electron microscopy (TEM).
- Determination of receptor interacting protein kinase 1 (RIP1K), Caspase 3, and Caspase 8 expression.
Main Results:
- Quercetin treatment induced significant ultrastructural changes in GCTB cells.
- Observed changes included necroptosis, autophagocytosis, and secondary necrosis.
- The study provides the first report on quercetin's effects on cultured GCTB cells.
Conclusions:
- Quercetin demonstrates potential as a therapeutic agent for giant cell tumor of bone (GCTB).
- The observed cell death pathways suggest a mechanism for quercetin's antitumoral activity in GCTB.
- Further research in diverse models is warranted to validate quercetin as an adjunct therapy for GCTB.
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