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The Colon-26 Carcinoma Tumor-bearing Mouse as a Model for the Study of Cancer Cachexia
Published on: November 30, 2016
Significance of localized expression of full-length growth differentiation factor-15 in cachexia of advanced
Satomi Morita-Tanaka1,2, Aya Miyagawa-Hayashino2, Tadaaki Yamada3
1Department of Respiratory Medicine, Kyoto Prefectural University of Medicine, Kyoto, Japan.
Purpose:
Growth differentiation factor-15 (GDF-15) is one of the key cachexia-inducing factors. Clinical trials on therapies targeting GDF-15 for cancer and cancer cachexia are underway. While the role of circulating GDF-15 in cachexia has been clarified, the effects of GDF-15 expression within cancer cells remain to be fully elucidated. Hence, the objective of this study was to investigate the expression of GDF-15 in advanced lung cancer tissues and to understand its role in cachexia.
Methods:
We retrospectively examined the expression level of full-length GDF-15 in advanced non-small cell lung cancer tissues and analyzed the relationship between the staining intensity and clinical data in 53 samples.
Results:
We found that 52.8% of the total samples were GDF-15 positive, and GDF-15 expression significantly correlated with improved C-reactive protein/albumin ratio (p = 0.008). It did not correlate with the existence of cancer cachexia and overall survival (p = 0.43).
Conclusion:
Our findings show that GDF-15 expression significantly correlated with improved C-reactive protein/albumin ratio, but not the existence of cancer cachexia in advanced NSCLC patients.
Insights
Growth Differentiation Factor-15 (GDF-15) expression in advanced lung cancer tissues correlated with an improved C-reactive protein/albumin ratio. However, GDF-15 did not correlate with cancer cachexia or survival in these patients.
Area of Science:
- Oncology
- Molecular Biology
- Biochemistry
Background:
- Growth Differentiation Factor-15 (GDF-15) is implicated in cancer cachexia.
- Circulating GDF-15's role in cachexia is known, but its expression within tumor cells requires further investigation.
- Targeting GDF-15 for cancer and cachexia therapies is under clinical investigation.
Purpose of the Study:
- To investigate GDF-15 expression in advanced lung cancer tissues.
- To determine the relationship between GDF-15 expression and cancer cachexia.
- To understand the role of GDF-15 within cancer cells in the context of cachexia.
Main Methods:
- Retrospective analysis of GDF-15 expression in 53 advanced non-small cell lung cancer (NSCLC) tissue samples.
- Assessment of full-length GDF-15 staining intensity.
- Correlation analysis between GDF-15 expression and clinical data, including cancer cachexia and survival.
Main Results:
- GDF-15 was expressed in 52.8% of the examined NSCLC samples.
- GDF-15 expression showed a significant correlation with an improved C-reactive protein/albumin ratio (p=0.008).
- No significant correlation was found between GDF-15 expression and the presence of cancer cachexia (p=0.43) or overall survival.
Conclusions:
- GDF-15 expression in advanced NSCLC is significantly associated with an improved C-reactive protein/albumin ratio.
- GDF-15 expression within tumor cells does not appear to be directly correlated with the existence of cancer cachexia in this patient cohort.
- Further research is needed to fully elucidate GDF-15's complex role in lung cancer progression and cachexia.
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