Volume 109, Issue 6 pp. 951-965
ORIGINAL ARTICLE

Heparin/collagen surface coatings modulate the growth, secretome, and morphology of human mesenchymal stromal cell response to interferon-gamma

Said J. Cifuentes

Said J. Cifuentes

Bioengineering Graduate Program, University of Puerto Rico Mayaguez, Mayaguez, Puerto Rico, USA

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Priyanka Priyadarshani

Priyanka Priyadarshani

Regenerative Bioscience Center, Rhodes Center for ADS, University of Georgia, Athens, Georgia, USA

School of Chemical, Materials and Biomedical Engineering, University of Georgia, Athens, Georgia, USA

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David A. Castilla-Casadiego

David A. Castilla-Casadiego

Ralph E. Martin Department of Chemical Engineering, University of Arkansas, Fayetteville, Arkansas, USA

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Luke J. Mortensen

Luke J. Mortensen

Regenerative Bioscience Center, Rhodes Center for ADS, University of Georgia, Athens, Georgia, USA

School of Chemical, Materials and Biomedical Engineering, University of Georgia, Athens, Georgia, USA

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Jorge Almodóvar

Corresponding Author

Jorge Almodóvar

Ralph E. Martin Department of Chemical Engineering, University of Arkansas, Fayetteville, Arkansas, USA

Correspondence

Jorge Almodóvar, Ralph E. Martin Department of Chemical Engineering, University of Arkansas, 3202 Bell Engineering Center, Fayetteville, AR 72701, USA.

Email: [email protected]

Maribella Domenech, Bioengineering Graduate Program, University of Puerto Rico Mayaguez Call Box 9000, Mayaguez, PR 00681-9000, USA.

Email: [email protected]

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Maribella Domenech

Corresponding Author

Maribella Domenech

Bioengineering Graduate Program, University of Puerto Rico Mayaguez, Mayaguez, Puerto Rico, USA

Department of Chemical Engineering, University of Puerto Rico Mayagüez, Mayagüez, Puerto Rico, USA

Correspondence

Jorge Almodóvar, Ralph E. Martin Department of Chemical Engineering, University of Arkansas, 3202 Bell Engineering Center, Fayetteville, AR 72701, USA.

Email: [email protected]

Maribella Domenech, Bioengineering Graduate Program, University of Puerto Rico Mayaguez Call Box 9000, Mayaguez, PR 00681-9000, USA.

Email: [email protected]

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First published: 12 August 2020
Citations: 18

Funding information: Center for the Advancement of Wearable Technologies, National Science Foundation, Grant/Award Number: OIA-1849243; Engineering Center for Cell Manufacturing Technologies, National Science Foundation, Grant/Award Number: EEC-1648035; PUERTO RICO IDEA NETWORK OF BIOMEDICAL RESEARCH EXCELLENCE, National Institute of Health, Grant/Award Number: P20 GM103475-15

Abstract

The therapeutic potential of human mesenchymal stromal cells (h-MSC) is dependent on the viability and secretory capacity of cells both modulated by the culture environment. Our previous studies introduced heparin and collagen I (HEP/COL) alternating stacked layers as a potential substrate to enhance the secretion of immunosuppressive factors of h-MSCs. Herein, we examined the impact of HEP/COL multilayers on the growth, morphology, and secretome of bone marrow and adipose-derived h-MSCs. The physicochemical properties and stability of the HEP/COL coatings were confirmed at 0 and 30 days. Cell growth was examined using cell culture media supplemented with 2 and 10% serum for 5 days. Results showed that HEP/COL multilayers supported h-MSC growth in 2% serum at levels equivalent to 10% serum. COL and HEP as single component coatings had limited impact on cell growth. Senescent studies performed over three sequential passages showed that HEP/COL multilayers did not impair the replicative capacity of h-MSCs. Examination of 27 cytokines showed significant enhancements in eight factors, including intracellular indoleamine 2, 3-dioxygenase, on HEP/COL multilayers when stimulated with interferon-gamma (IFN-γ). Image-based analysis of cell micrographs showed that serum influences h-MSC morphology; however, HEP-ended multilayers generated distinct morphological changes in response to IFN-γ, suggesting an optical detectable assessment of h-MSCs immunosuppressive potency. This study supports HEP/COL multilayers as a culture substrate for undifferentiated h-MSCs cultured in reduced serum conditions.

CONFLICT OF INTEREST

The authors declare no potential conflict of interest.

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