Spheroids from adipose-derived stem cells exhibit an miRNA profile of highly undifferentiated cells

Marta Castiglia, Francesca Toia, Federica Grisafi, Anna Barbara Di Stefano, Luigi Montesano, Adriana Cordova, Antonio Russo, Daniele Fanale, Alessandro Perez, Francesco Moschella, Alessandro Gulino, Francesco Moschella, Angelo A. Leto Barone, Francesca Toia, Antonio Russo, Marta Castiglia, Luigi Montesano, Alessandro Perez, A. Barbara Di Stefano, Daniele FanaleFederica Grisafi, Adriana Cordova, Angelo Alberto Leto Barone

Risultato della ricerca: Articlepeer review

11 Citazioni (Scopus)


Two-dimensional (2D) cell cultures have been extensively used to investigate stem cell biology, but new insights show that the 2D model may not properly represent the potential of the tissue of origin. Conversely, three-dimensional cultures exhibit protein expression patterns and intercellular junctions that are more representative of their in vivo condition. Multiclonal cells that grow in suspension are defined as "spheroids," and we have previously demonstrated that spheroids from adipose-derived stem cells (S-ASCs) displayed enhanced regenerative capability. With the current study, we further characterized S-ASCs to further understand the molecular mechanisms underlying their stemness properties. Recent studies have shown that microRNAs (miRNAs) are involved in many cellular mechanisms, including stemness maintenance and proliferation, and adipose stem cell differentiation. Most studies have been conducted to identify a specific miRNA profile on adherent adipose stem cells, although little is still known about S-ASCs. In this study, we investigate for the first time the miRNA expression pattern in S-ASCs compared to that of ASCs, demonstrating that cell lines cultured in suspension show a typical miRNA expression profile that is closer to the one reported in induced pluripotent stem cells. Moreover, we have analyzed miRNAs that are specifically involved in two distinct moments of each differentiation, namely early and late stages of osteogenic, adipogenic, and chondrogenic lineages during long-term in vitro culture. The data reported in the current study suggest that S-ASCs have superior stemness features than the ASCs and they represent the true upstream stem cell fraction present in adipose tissue, relegating their adherent counterparts.
Lingua originaleEnglish
pagine (da-a)8778-8789
Numero di pagine12
RivistaJournal of Cellular Physiology
Stato di pubblicazionePublished - 2018

All Science Journal Classification (ASJC) codes

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