GDF15 promotes osteosarcoma cell migration and invasion by regulating the TGFß signaling pathway.
Mol Med Rep
; 20(5): 4262-4270, 2019 Nov.
Article
en En
| MEDLINE
| ID: mdl-31545486
ABSTRACT
Growth and differentiation factor 15 (GDF15), a novel divergent member of the transforming growth factorß (TGFß) superfamily, was previously reported to be overexpressed in various types of cancers and was shown to be involved in tumor metastasis; however, the role of GDF15 in the development and malignant progression of osteosarcoma remains unclear. In the present study, reverse transcriptionquantitative polymerase chain reaction, western blot and ELISA analyses were performed to detect mRNA and protein expression, including that of GDF15, SMAD2 and SMAD3. Woundhealing and cell invasion assays were conducted to determine the migratory and invasive abilities of osteosarcoma cells. A luciferase assay was performed to evaluate the transcriptional activity of a TGFß/SMADresponsive luciferase reporter. The KaplanMeier method was used to generate survival curves, with a logrank test use to evaluate differences in survival. The results revealed that GDF15 expression was upregulated in metastatic osteosarcoma tissues compared with nonmetastatic osteosarcoma tissues. Patients with osteosarcoma that possessed high serum GDF15 levels exhibited significantly decreased overall survival (OS) and pulmonary metastasisfree survival (PMFS) time compared with patients with low GDF15 expression. Furthermore, high serum GDF15 was an independent prognostic parameter for poor OS and short PMFS. Additionally, it was observed that the knockdown of GDF15 attenuated the migration and invasion of osteosarcoma cells. Silencing GDF15 markedly suppressed the TGFß signaling pathway. In conclusion, GDF15 may promote osteosarcoma cell metastasis by regulating the TGFß signaling pathway, and serum GDF15 levels may be a potential prognostic and pulmonary metastasispredictive biomarker in osteosarcoma.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Neoplasias Óseas
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Transducción de Señal
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Osteosarcoma
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Factor de Crecimiento Transformador beta
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Factor 15 de Diferenciación de Crecimiento
Tipo de estudio:
Prognostic_studies
Límite:
Adolescent
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Adult
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Humans
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Middle aged
Idioma:
En
Revista:
Mol Med Rep
Año:
2019
Tipo del documento:
Article