Scalable Human Biomaterials for Regenerative and Cell-Based Applications

New applications of sustainable, scalable, standardized, and cost-effective human biomaterials for cell-based assays, tissue engineering, and regenerative medicine.

Abstract

Human-derived biomaterials offer several advantages over animal-derived or synthetic alternatives, including improved biocompatibility, ethical acceptability, sustainability, and clinical translatability. Here we present new applications of human placenta-derived materials – specifically HUMAN PLACENTA substrate, collagen type-I, and Laminin-111 – as 2D coating materials and 3D matrices for the cultivation of spheroids and adherent cells. Collagen type-I coatings supported colorectal cancer spheroid formation without the need for growth factor supplementation. Lm-111 significantly enhanced NIH3T3 fibroblast adhesion compared with poly-L-lysine and rat-tail collagen type-I, performing comparably to bovine fibronectin. In a transwell blood–brain barrier model, HUMAN PLACENTA substrate coatings enabled confluent endothelial monolayers with transendothelial electrical resistance values not significantly different from the conventional human collagen type-IV/bovine fibronectin mixture. Across these in vitro models, placenta-derived materials performed comparably or better than conventional animal-derived and synthetic coatings, supporting robust cell viability, adhesion, and barrier formation. Due to their human origin, these biomaterials exhibit reduced biological complexity while enhancing biocompatibility and translational relevance. Therefore, they provide a sustainable, ethically acceptable alternative for advanced cell culture systems.

Simplified Version

Materials made from human tissue can be better for growing human cells than materials made from animals or chemicals. They are more compatible with human cells, more ethical, and the results are more likely to be useful in medical research. In this study, we tested materials taken from donated human placentas to see how well they support cells grown in the lab. We used these materials to help cells grow either as flat layers or as small 3D clusters. We found that placenta-derived materials helped cells to grow, stick, and organize themselves just as well as, and sometimes better than, commonly used animal-based materials. For example, cancer cells formed healthy 3D clusters without needing extra chemicals, fibroblast cells attached better or comparable than on standard materials, and blood vessel cells formed layers like those found in the human body. Because these materials come from humans, they work naturally with human cells and avoid the use of animal products. This makes them a promising, ethical, and sustainable choice for future cell research and medical applications.

Publication link: https://doi.org/10.3389/fbioe.2025.1676369

Categories: Papers & Awards

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