Gellan gum-gelatin based cardiac models support formation of cellular networks and functional cardiomyocytes

Cardiovascular diseases remain as the most common cause of death worldwide. To reveal the underlying mechanisms in varying cardiovascular diseases, in vitro models with cells and supportive biomaterial can be designed to recapitulate the essential components of human heart. In this study, we analyze...

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Published in:Cytotechnology (Dordrecht) 2024-08, Vol.76 (4), p.483-502
Main Authors: Vuorenpää, Hanna, Valtonen, Joona, Penttinen, Kirsi, Koskimäki, Sanna, Hovinen, Emma, Ahola, Antti, Gering, Christine, Parraga, Jenny, Kelloniemi, Minna, Hyttinen, Jari, Kellomäki, Minna, Aalto-Setälä, Katriina, Miettinen, Susanna, Pekkanen-Mattila, Mari
Format: Article
Language:English
Subjects:
Actin
Adipose tissue
Biochemistry
Biomaterials
Biomedicine
Biotechnology
Body fat
Cardiomyocytes
Cardiovascular diseases
Cell culture
Chemistry
Chemistry and Materials Science
Endothelial cells
Ethics
Fibroblasts
Gelatin
Gellan gum
Heart
Hospitals
Hydrogels
Insulin
Morphology
Penicillin
Regenerative medicine
Smooth muscle
Stem cells
Stromal cells
Test systems
Tissue engineering
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Summary:Cardiovascular diseases remain as the most common cause of death worldwide. To reveal the underlying mechanisms in varying cardiovascular diseases, in vitro models with cells and supportive biomaterial can be designed to recapitulate the essential components of human heart. In this study, we analyzed whether 3D co-culture of cardiomyocytes (CM) with vascular network and with adipose tissue-derived mesenchymal stem/stromal cells (ASC) can support CM functionality. CM were cultured with either endothelial cells (EC) and ASC or with only ASC in hydrazide-modified gelatin and oxidized gellan gum hybrid hydrogel to form cardiovascular multiculture and myocardial co-culture, respectively. We studied functional characteristics of CM in two different cellular set-ups and analyzed vascular network formation, cellular morphology and orientation. The results showed that gellan gum-gelatin hydrogel supports formation of two different cellular networks and functional CM. We detected formation of a modest vascular network in cardiovascular multiculture and extensive ASC-derived alpha smooth muscle actin -positive cellular network in multi- and co-culture. iPSC-CM showed elongated morphology, partly aligned orientation with the formed networks and presented normal calcium transients, beating rates, and contraction and relaxation behavior in both setups. These 3D cardiac models provide promising platforms to study (patho) physiological mechanisms of cardiovascular diseases.
ISSN:0920-9069
1573-0778
DOI:10.1007/s10616-024-00630-5