Leptin affects filopodia and cofilin in NK-92 cells in a dose- and time-dependent manner
| Autor: | Jana Oswald, Maximilian Büttner, Simon Jasinsky-Bergner, Roland Jacobs, Philip Rosenstock, Heike Kielstein |
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| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: | |
| Zdroj: | European Journal of Histochemistry, Vol 62, Iss 1 (2018) |
| Druh dokumentu: | article |
| ISSN: | 1121-760X 2038-8306 |
| DOI: | 10.4081/ejh.2018.2848 |
| Popis: | Hyperleptinemia, associated with obesity, is related with immune dysfunction and carcinogenesis. Natural Killer (NK) cells, a major component of the innate immune system are mediators of anti-tumor immunity and the most actively migrating cells among leukocytes. Actin rearrangement, promoted by cofilin plays a central role in cellular migration. Leptin affects the phosphorylation-dependent activity of cofilin and thus actin remodeling. We used human NK-92 cells to explore the in vitro effects of leptin on co-localization of cofilin and F-actin and on morphological changes in NK cells. NK-92 cells were incubated with different leptin concentrations (10 and 100 ng/mL) for 30 min and 24 h and immunocytochemically stained. Results demonstrate a dose- and time-dependent influence of leptin on cellular morphology. Utilizing confocal microscopy, we observed that the co-localization of cofilin-1 and F-actin was slightly influenced by leptin. In summary, the present study demonstrates an impact of a physiological leptin stimulation on the filopodia length, and a time-dependent effect on the co-localization of cofilin and F-actin in NK-92 cells. |
| Databáze: | Directory of Open Access Journals |
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