Microfluidic technologies to engineer mesenchymal stem cell aggregates-applications and benefits.

Area of Science:

• Biotechnology
• Regenerative Medicine
• Microfluidics

Background:

• Three-dimensional (3D) cell cultures, specifically multicellular aggregates, offer superior in vivo mimicry compared to traditional monolayer methods.
• Efficient and rapid formation of uniform-sized multicellular aggregates is a key challenge in stem cell research and applications.

Purpose of the Study:

• To review recent advancements in using microfluidic technology, with a focus on droplet-based systems, for the formation, culture, and harvesting of mesenchymal stem cell aggregates.
• To highlight the applications of these microfluidic-derived stem cell aggregates in stem cell biology, tissue engineering, and drug screening.

Main Methods:

• Utilizing microfluidic devices, especially droplet-based microfluidics, for precise control over cell aggregate formation and culture.
• Developing microgels as cell carriers for minimally invasive delivery and incorporation of biological cues.
• Investigating the use of stem cell-laden microgels as shape-forming building blocks for tissue regeneration.

Main Results:

• Droplet-based microfluidics facilitates the rapid generation of uniform mesenchymal stem cell aggregates.
• Microgels derived from microfluidic systems serve as effective carriers for cell delivery and can provide essential biological cues.
• Stem cell-laden microgels demonstrate potential as 'smart building blocks' for tissue regeneration strategies.

Conclusions:

• Microfluidic technology, particularly droplet-based approaches, provides powerful tools for creating and utilizing mesenchymal stem cell aggregates.
• These engineered cell constructs hold significant promise for advancing stem cell biology, tissue engineering, and drug discovery platforms.