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Updated: Aug 24, 2026

Tumorsphere Derivation and Treatment from Primary Tumor Cells Isolated from Mouse Rhabdomyosarcomas
Published on: September 13, 2019
[Fragile histidine triad expression in rhabdomyosarcoma]
Shou-li Wang1, Guang-hua Yang, Hong Bu
1Department of Pathology, West China Hospital, Sichuan University, Chengdu 610041, China.
Objective:
To study the expression of fragile histidine triad (FHIT) protein in rhabdomyosarcoma(RMS) and the possible mechanisms of its effect on tumor.
Methods:
Immunohistochemical technique(SP) was used to detect the expression of FHIT in 44 cases of RMS and 20 cases of normal skeletal muscles.
Results:
Reduced expression of FHIT was 68.2% (30/44) in the cases of RMS, and was 35% (7/20) in the cases of normal skeletal muscles; a significant difference was seen between the two groups(P < 0.05). There was no significant relationship of the expression of FHIT with the sex of the patient and the histological type and grade of the tumor(P > 0.05). However, a significant relationship was observed between the expression of FHIT and the prognosis of the tumor in respect to relapse and metastasis of tumor(P < 0.05).
Conclusion:
The reduced expression of FHIT may play an important role in the development and progression of rhabdomyosarcoma, and thus may become a new prognostic marker in RMS.
Insights
Reduced expression of the fragile histidine triad (FHIT) protein is common in rhabdomyosarcoma (RMS). This finding suggests FHIT may be a new prognostic marker for RMS progression, including metastasis.
Area of Science:
- Oncology
- Molecular Biology
- Cancer Research
Context:
- Rhabdomyosarcoma (RMS) is a pediatric soft tissue sarcoma.
- The role of the fragile histidine triad (FHIT) tumor suppressor in RMS pathogenesis is not fully understood.
Purpose:
- To investigate the expression levels of FHIT protein in RMS tissues.
- To explore the potential mechanisms and prognostic significance of FHIT in RMS.
Summary:
- Immunohistochemistry revealed significantly reduced FHIT expression in 68.2% of RMS cases compared to 35% in normal skeletal muscle.
- FHIT expression did not correlate with patient sex, tumor histology, or grade.
- However, reduced FHIT expression was significantly associated with tumor relapse and metastasis.
Impact:
- Reduced FHIT expression is implicated in the development and progression of RMS.
- FHIT may serve as a novel biomarker for predicting RMS prognosis and outcomes.
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