Three-Dimensional Bioprinting of Lymphoid Organs: Bioinks, Vascularization Strategies and Immunological Applications
Smriti Supariwala
Department of Biotechnology, Dr D. Y. Patil Arts, Commerce and Science College, Pimpri, Pune, Maharashtra, India.
Kartik Joshi
Department of Biotechnology, Dr D. Y. Patil Arts, Commerce and Science College, Pimpri, Pune, Maharashtra, India.
Pooja Malave *
Department of Biotechnology, Dr D. Y. Patil Arts, Commerce and Science College, Pimpri, Pune, Maharashtra, India and Department of Allied Sciences, Krishna Vishwa Vidyapeeth Karad, Maharashtra, India.
*Author to whom correspondence should be addressed.
Abstract
Three-dimensional (3D) bioprinting has emerged as a transformative technology for engineering lymphoid organs, offering a promising alternative to traditional two-dimensional (2D) cultures and animal models. This technique employs biocompatible natural hydrogels and advanced printing modalities to generate architecturally complex constructs that closely replicate the human immunological microenvironment.
A major advancement in this field is the integration of vascularization strategies, which enables the fabrication of thicker and more viable tissues. Bioprinted lymphoid organ models have shown substantial potential in applications such as personalized immunotherapy screening, tumour–immune interaction studies, and vaccine development.
Although challenges remain in achieving full functional complexity and long-term structural stability, recent developments—including AI-assisted design and organoid-integrated bioprinting—continue to expand the capabilities of immune tissue engineering. Overall, advancements in 3D bioprinting of lymphoid organs are expected to accelerate progress in immunology research, personalized immunotherapies, and human-relevant disease modelling.
Keywords: 3D bioprinting, lymphoid organ engineering, bioinks, vascularization strategies, immunotherapy applications, tissue engineering