Cell-Dense Bioprinting as a Living Device for Engineering Tissues at Native Cellular Resolution
摘要
Cell-dense bioprinting is emerging as a new class of living manufacturing platforms, in which cellular collectives simultaneously provide structure, biological activity, and functional output. In their recent Cell study, Wang et al. introduce CLINK (cell-dense bioINK), a biomaterial-minimalistic, photoactivated strategy that directly uses living cells as printable, photoresponsive building blocks. Beyond summarizing this advance, this Commentary critically positions CLINK relative to existing scaffold-free and aggregate-based bioprinting approaches, highlights the quantitative benchmarks supporting its claim of native cellular resolution, and discusses key translational challenges—including scalability, reproducibility, and regulatory considerations—that will determine whether cell-dense bioprinting can mature into clinically deployable living devices.