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Semi-quantitative Detection of RNA-dependent RNA Polymerase Activity of Human Telomerase Reverse Transcriptase Protein
Published on: June 12, 2018
Correlation between p38 mitogen-activated protein kinase and human telomerase reverse transcriptase in sarcomas
Toshihiro Matsuo1, Shoji Shimose, Tadahiko Kubo
1Department of Orthopaedic Surgery, National Hospital Organization Kure Medical Center and Chugoku Cancer Center: 3-1, Aoyamacho, Kure, Hiroshima, 7370023 Japan. matsuot@kure-nh.go.jp
Journal of Experimental & Clinical Cancer Research : CR
|January 17, 2012
Summary
p38 mitogen-activated protein kinase (MAPK) correlates positively with human telomerase reverse transcriptase (hTERT) in sarcomas. Higher p38 MAPK expression is linked to worse patient prognosis, suggesting its role in hTERT regulation and as a prognostic marker.
Area of Science:
- Oncology
- Molecular Biology
- Cancer Research
Background:
- Human telomerase reverse transcriptase (hTERT) is a key component of telomerase, and its mRNA expression is linked to sarcoma prognosis and progression.
- The precise mechanisms of hTERT in human sarcomas remain unclear.
- p38 mitogen-activated protein kinase (MAPK) signaling pathways have been implicated in modulating hTERT transcription.
Purpose of the Study:
- To investigate the correlation between p38 MAPK and hTERT expression in sarcoma samples.
- To determine the clinical significance of this correlation in patient prognosis.
Main Methods:
- Quantitative detection of hTERT and p38 MAPK expression using RT-PCR.
- Analysis of 36 soft tissue MFH, 24 LS, and 9 bone MFH samples.
Main Results:
- A significant positive correlation was observed between hTERT and p38 MAPK levels across all sarcoma types analyzed (r = 0.445, p = 0.0001).
- This positive correlation was significant in soft tissue MFH (r = 0.352, p = 0.0352), LS (r = 0.704, p = 0.0001), and bone MFH (r = 0.802, p = 0.0093).
- Patients with higher than average p38 MAPK expression exhibited a significantly worse prognosis (p = 0.0036).
Conclusions:
- p38 MAPK signaling may contribute to the up-regulation of hTERT in sarcomas.
- p38 MAPK could serve as a valuable biomarker for assessing hTERT levels and predicting patient prognosis in sarcoma.
- Further research into the p38 MAPK-hTERT pathway may reveal therapeutic targets for sarcoma treatment.
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