Noradrenaline Sensitivity Is Severely Impaired in Immortalized Adipose-Derived Mesenchymal Stem Cell Line

Tyurin-Kuzmin, P.; Chechekhin, V.; Ivanova, A.; Dyikanov, D.; Sysoeva, V.; Kalinina, N.; Tkachuk, V.

Авторы: Tyurin-Kuzmin Pyotr, Chechekhin Vadim, Ivanova Anastasiya, Dyikanov Daniyar, Sysoeva Veronika, Kalinina Natalia, Tkachuk Vsevolod
Журнал: International Journal of Molecular Sciences
Том: 19
Номер: 12
Год издания: 2018
Издательство: MDPI
Местоположение издательства: Basel, Switzerland
Первая страница: 3712
DOI: 10.3390/ijms19123712
Аннотация: Primary adipose tissue-derived multipotent stem/stromal cells (adMSCs) demonstrate unusual signaling regulatory mechanisms, i.e., increased of sensitivity to catecholamines in response to noradrenaline. This phenomenon is called “heterologous sensitization”, and was previously found only in embryonic cells. Since further elucidation of the molecular mechanisms that are responsible for such sensitization in primary adMSCs was difficult due to the high heterogeneity in adrenergic receptor expression, we employed immortalized adipose-derived mesenchymal stem cell lines (hTERT-MSCs). Using flow cytometry and immunofluorescence microscopy, we demonstrated that the proportion of cells expressing adrenergic receptor isoforms does not differ significantly in hTERT-MSCs cells compared to the primary adMSCs culture. However, using analysis of Ca2+-mobilization in single cells, we found that these cells did not demonstrate the sensitization seen in primary adMSCs. Consistently, these cells did not activate cAMP synthesis in response to noradrenaline. These data indicate that immortalized adipose-derived mesenchymal stem cell lines demonstrated impaired ability to respond to noradrenaline compared to primary adMSCs. These data draw attention to the usage of immortalized cells for MSCs-based regenerative medicine, especially in the field of pharmacology.
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Noradrenaline Sensitivity Is Severely Impaired in Immortalized Adipose-Derived Mesenchymal Stem Cell Lineстатья

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