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A novel granulin homologue isolated from the jellyfish Cyanea capillata promotes proliferation and migration of human umbilical vein endothelial cells through the ERK1/2-signaling pathway.
- Source :
-
International Journal of Biological Macromolecules . Aug2019, Vol. 135, p212-225. 14p. - Publication Year :
- 2019
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Abstract
- Jellyfish grow rapidly and have a strong regenerative ability, indicating that they may express high levels of growth factors. Therefore, the aim of this research was to isolate the growth-promoting components from the jellyfish Cyanea capillata (C. capillata) and to further explore the underlying mechanisms. In this study, we first isolated and identified a novel polypeptide from C. capillata tentacles using size-exclusion chromatography followed by reverse-phase HPLC. This peptide, consisting of 58 amino acids (MW 5782.9 Da), belonged to the granulin (GRN) family of growth factors; thus, we named it Cyanea capillata granulin-1 (Cc GRN-1). Second, using CCK-8 assay and flow cytometry, we verified that Cc GRN-1 at the 0.5 μg/ml concentration could promote cell proliferation and increase the expression of cell-cycle proteins (CyclinB1 and CyclinD1). Third, signaling pathways studies showed that Cc GRN-1 could activate the PI3K/Akt- and ERK1/2 MAPK–signaling pathways but not the JNK MAPK- or NF-κB-signaling pathways. Subsequently, we further confirmed that the Cc GRN-1-induced cell proliferation and migration were associated only with the ERK1/2 MAPK–signaling pathway. Considering all of these factors, Cc GRN-1, as the first jellyfish-derived GRN homologue, possesses growth-promoting properties and may be a candidate for novel therapeutics to promote human wound healing in unfavorable conditions. Unlabelled Image [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 01418130
- Volume :
- 135
- Database :
- Academic Search Index
- Journal :
- International Journal of Biological Macromolecules
- Publication Type :
- Academic Journal
- Accession number :
- 137374304
- Full Text :
- https://doi.org/10.1016/j.ijbiomac.2019.05.101