Sub-Micropillar Spacing Modulates the Spatial Arrangement of Mouse MC3T3-E1 Osteoblastic Cells.

Ghezzi, Benedetta; Lagonegro, Paola; Fukata, Naoki; Parisi, Ludovica; Calestani, Davide; Galli, Carlo; Salviati, Giancarlo; Macaluso, Guido M; Rossi, Francesca (2019). Sub-Micropillar Spacing Modulates the Spatial Arrangement of Mouse MC3T3-E1 Osteoblastic Cells. Nanomaterials, 9(12) MDPI 10.3390/nano9121701

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Surface topography is one of the main factors controlling cell responses on implanted devices and a proper definition of the characteristics that optimize cell behavior may be crucial to improve the clinical performances of these implants. Substrate geometry is known to affect cell shape, as cells try to optimize their adhesion by adapting to the irregularities beneath, and this in turn profoundly affects their activity. In the present study, we cultured murine calvaria MC3T3-E1 cells on surfaces with pillars arranged as hexagons with two different spacings and observed their morphology during adhesion and growth. Cells on these highly ordered substrates attached and proliferated effectively, showing a marked preference for minimizing the inter-pillar distance, by following specific pathways across adjacent pillars and displaying consistent morphological modules. Moreover, cell behavior appeared to follow tightly controlled patterns of extracellular protein secretion, which preceded and matched cells and, on a sub-cellular level, cytoplasmic orientation. Taken together, these results outline the close integration of surface features, extracellular proteins alignment and cell arrangement, and provide clues on how to control and direct cell spatial order and cell morphology by simply acting on inter-pillar spacing.

Item Type:

Journal Article (Original Article)

Division/Institute:

04 Faculty of Medicine > School of Dental Medicine

UniBE Contributor:

Parisi, Ludovica

Subjects:

600 Technology > 610 Medicine & health

ISSN:

2079-4991

Publisher:

MDPI

Language:

English

Submitter:

Renate Imhof-Etter

Date Deposited:

06 Jan 2020 15:56

Last Modified:

06 Jan 2020 15:56

Publisher DOI:

10.3390/nano9121701

PubMed ID:

31795174

Uncontrolled Keywords:

osteoblasts pillar regenerative medicine scaffold

BORIS DOI:

10.7892/boris.137125

URI:

https://boris.unibe.ch/id/eprint/137125

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