Related Experiment Video
Updated: Aug 6, 2026
09:24
Tissue Engineering: Construction of a Multicellular 3D Scaffold for the Delivery of Layered Cell Sheets
Published on: October 3, 2014
Cell delivery in regenerative medicine: the cell sheet engineering approach
Joseph Yang1, Masayuki Yamato, Kohji Nishida
1Institute of Advanced Biomedical Engineering and Science, Tokyo Women's Medical University, Tokyo, Japan.
Summary
Cell sheet engineering offers a novel regenerative medicine approach, enabling non-invasive cell harvest and scaffold-free transplantation for tissue repair. This method overcomes limitations of traditional cell delivery techniques.
Area of Science:
- Regenerative Medicine
- Biotechnology
- Tissue Engineering
Background:
- Cell-based therapies are foundational to regenerative medicine.
- Conventional methods include direct cell injection and scaffold-based tissue engineering.
- These approaches have shown clinical success but face delivery limitations.
Purpose of the Study:
- To introduce cell sheet engineering as a novel alternative for cell delivery and tissue reconstruction.
- To demonstrate the non-invasive harvest of intact cell sheets with extracellular matrix.
- To explore the applications of cell sheet constructs in regenerative therapies.
Main Methods:
- Utilized temperature-responsive culture dishes for cell culture.
- Harvested intact cell sheets non-invasively, preserving deposited extracellular matrix.
- Developed methods for direct transplantation of cell sheets and in vitro layering for tissue constructs.
Main Results:
- Successfully developed a method for non-invasive, scaffold-free cell sheet harvesting.
- Demonstrated the feasibility of direct cell sheet transplantation to host tissues.
- Showcased the creation of in vitro tissue constructs through cell sheet layering.
Conclusions:
- Cell sheet engineering provides a promising scaffold-free approach for regenerative medicine.
- This technique overcomes limitations associated with conventional cell delivery methods.
- Cell sheet constructs offer versatile applications in tissue repair and reconstruction.
Related Concept Videos
01:21Stem Cell Therapy for Tissue Regeneration
Stem cell therapy is a method used in regenerative medicine to repair and restore function to damaged tissues and organs. Stem cells have the potential to proliferate and differentiate into various tissue types, making them ideal candidates for tissue regeneration. For example, hematopoietic stem cell transplants are commonly used in blood cancer treatment to replenish damaged bone marrow and restore healthy blood cells.
Types of Stem Cells used in Stem Cell Therapy
The two main cell types that...
Types of Stem Cells used in Stem Cell Therapy
The two main cell types that...
01:17Stem Cell Culture
Stem cell research aims to find ways to use stem cells to regenerate and repair cellular damage. Over time, most adult cells undergo the wear and tear of aging and lose their ability to divide and repair themselves. Stem cells do not display a particular morphology or function. Adult stem cells, which exist as a small subset of cells in most tissues, keep dividing and can differentiate into a number of specialized cells generally formed by that tissue. These cells enable the body to renew and...
01:22iPS Cell Differentiation
The ability of induced pluripotent stem cells or iPSCs to differentiate into most body cell types has stimulated repair and regenerative medicine research over the past few decades. iPSC-derived blood cells, hepatocytes, beta islet cells, cardiomyocytes, neurons, and other cell types can repair injuries or regenerate damaged tissue in diseases such as diabetes and neurodegenerative disorders.