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Updated: Jul 16, 2026
09:23
Monitoring Neutrophil Elastase and Cathepsin G Activity in Human Sputum Samples
Published on: May 21, 2021
Neutrophil elastase and cancer.
Takashi Sato1, Satoshi Takahashi, Takao Mizumoto
1Department of Otolaryngology, Aichi-Gakuin University, Suemori-dori 2-11, Chikusa-ku 464-8651, Aichi, Japan.
Surgical Oncology
|February 27, 2007
Summary
Neutrophil elastase (NE) aids cancer metastasis by degrading extracellular matrix proteins. Inhibiting NE shows promise in preventing cancer invasion and spread.
Area of Science:
- Biochemistry
- Oncology
- Molecular Biology
Background:
- Cancer metastasis involves complex proteolytic events.
- Neutrophil elastase (NE) is a protease with broad substrate specificity.
- Elevated NE levels are linked to cancer progression.
Purpose of the Study:
- To review experimental and clinical evidence on neutrophil elastase (NE) in cancer.
- To investigate the role of NE in tumor growth and metastasis.
- To evaluate the therapeutic potential of NE inhibitors in cancer treatment.
Main Methods:
- Analysis of experimental and clinical studies on NE and cancer.
- Assessment of NE expression in human breast and lung cancer cell lines and tissues.
- Evaluation of NE inhibitor efficacy in preclinical mouse models of cancer.
Main Results:
- Human breast and lung cancer cell lines produce immunoreactive NE.
- Tumor tissue NE levels are independent prognostic indicators for breast and lung cancer patients.
- A specific NE inhibitor significantly suppressed the growth of transplanted cancer cells in mice.
Conclusions:
- Neutrophil elastase plays a significant role in cancer invasion and metastasis.
- NE levels in tumors can serve as a prognostic biomarker.
- NE inhibitors represent a promising therapeutic strategy for preventing cancer metastasis.
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