Current Advances in Red Blood Cell Generation Using Stem Cells from Diverse Sources

Area of Science:

• Hematology and Regenerative Medicine

Background:

• Blood transfusions are critical in healthcare, but current supply relies on donations, facing challenges from aging populations and rare blood types.
• Existing blood donation systems struggle to meet increasing transfusion demands and cater to patients with specific hematological needs.

Purpose of the Study:

• To review current strategies for the *in vitro* and *ex vivo* production of red blood cells (RBCs).
• To explore the use of various stem cell sources for generating clinical-grade RBCs.
• To identify remaining challenges for the practical application of manufactured RBCs.

Main Methods:

• Review of scientific literature on stem cell-derived RBC production.
• Analysis of different stem cell sources, including pluripotent stem cells (PSCs) and circulating blood stem cells.
• Evaluation of current methodologies for generating mature erythrocytes.

Main Results:

• Various stem cell sources, including PSCs, can be utilized for RBC generation.
• Significant progress has been made in developing methods for producing mature erythrocytes *in vitro*/*ex vivo*.

Conclusions:

• Stem cell-based RBC production presents a promising alternative to traditional blood donation.
• Overcoming current technical and scalability challenges is essential for the clinical implementation of manufactured RBCs.