Chitosan-based Biomaterials in Regenerative Medicine: Optimizing Mesenchymal Stem Cell Viability and Function.

Area of Science:

• Biomaterials Science
• Regenerative Medicine
• Stem Cell Biology

Background:

• Mesenchymal stem cells (MSCs) are vital for regenerative medicine due to differentiation and paracrine effects.
• Clinical use of MSCs is limited by poor proliferation, survival, and tissue homing.
• Chitosan, a biocompatible biopolymer, offers solutions to enhance MSC performance.

Purpose of the Study:

• To review the role of chitosan-based biomaterials in improving mesenchymal stem cell (MSC) applications.
• To highlight chitosan's ability to overcome challenges in MSC transplantation and function.
• To discuss the potential of engineered chitosan materials in tissue engineering and cell delivery.

Main Methods:

• Review of existing literature on chitosan and MSC interactions.
• Analysis of chitosan's chemical and physical modifications for biomaterial development.
• Investigation of signaling pathways modulated by chitosan in MSCs.
• Exploration of chitosan-based scaffold applications in various tissue engineering contexts.

Main Results:

• Chitosan enhances MSC attachment, proliferation, and survival.
• Chitosan modulates key signaling pathways (Wnt/β-catenin, Notch, HIF-1α) essential for MSC function.
• Engineered chitosan materials (hydrogels, scaffolds, nanofibers) support MSCs for tissue regeneration.
• Chitosan can be tailored to promote specific MSC lineage differentiation and immunomodulatory functions.

Conclusions:

• Chitosan-based biomaterials represent a promising strategy to enhance MSC therapeutic potential in regenerative medicine.
• Applications span wound healing, skin, bone, cartilage, vascular, and neural tissue engineering.
• Further research is needed to address clinical translation challenges, focusing on safety and standardization.