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Updated: Oct 30, 2025

Isolation and Characterization of Tumor-initiating Cells from Sarcoma Patient-derived Xenografts
Published on: June 13, 2019
Self-defense of human sarcoma cells against cytolytic lymphoid cells of their host
Joseph G Sinkovics1, Joseph C Horvath2
11Retired Medical Director, Cancer Institute, St Joseph's Hospital Tampa, FL, USA.
Abstract:
Metastatic human sarcomas temporarily respond to radio-chemotherapy relapse and remain highly resistant to further combination chemotherapy as to a curative effect, including checkpoint control.
Insights
Metastatic human sarcomas show temporary responses to radio-chemotherapy but resist further treatment, including checkpoint control, hindering curative effects.
Area of Science:
- Oncology
- Medical Science
Background:
- Metastatic human sarcomas are challenging to treat.
- Current therapies often lead to relapse.
Purpose of the Study:
- To investigate the resistance mechanisms in metastatic human sarcomas.
- To evaluate the efficacy of further combination chemotherapy and checkpoint control.
Main Methods:
- Analysis of treatment response in metastatic human sarcomas.
- Assessment of resistance to radio-chemotherapy and combination chemotherapy.
Main Results:
- Sarcomas exhibit temporary sensitivity to radio-chemotherapy.
- Significant resistance to subsequent combination chemotherapy, including checkpoint control, was observed.
Conclusions:
- Radio-chemotherapy offers only transient benefits for metastatic sarcomas.
- Checkpoint control and further chemotherapy lack curative potential in resistant cases.
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