Multidirectional Filamented Light Biofabrication Creates Aligned and Contractile Cardiac Tissues.

ABSTRACT: Biofabricating 3D cardiac tissues that mimic the native myocardial tissue is a pivotal challenge in tissue engineering. In this study, we fabricate 3D cardiac tissues with controlled, multidirectional cellular alignment and directed or twisting contractility. We show that multidirectional filamented light can be used to biofabricate high-density (up to 60 × 10⁶ cells mL^-1) tissues, with directed uniaxial contractility (3.8x) and improved cell-to-cell connectivity (1.6x gap junction expression). Furthermore, by using multidirectional light projection, we can partially overcome cell-induced light attenuation, and fabricate larger tissues with multidirectional cellular alignment. For example, we fabricate a tri-layered myocardium-like tissue and a bi-layered tissue with

SUBMITTER: Jones LS 

PROVIDER: S-EPMC11653608 | biostudies-literature | 2024 Dec

REPOSITORIES: biostudies-literature