Review Article

Potential Clinical Applications for Human Pluripotent Stem Cell-Derived Blood Components

Table 1

Utility and current status of hESC/iPSC-derived blood components.

Cell typeTherapeutic useDifferentiation methodAdvantagesDisadvantages

Erythrocytes (RBCs)Transfusions for severe anemia or blood lossEBs, HBs, and/or stroma coculturePotential for alleviating shortages; production of pathogen-free (O)Rh- “universal donor” RBCsInefficient enucleation; difficulties in switching to adult-type (beta) globin forms
PlateletsTransfusions for critical thrombocytopeniaHandpicking ES sacs with 2-step stroma coculture or HB method with 1-step stroma coculturePotential for alleviating supply shortages due to high demand and limited shelf-lifeReliance on stroma and inefficiency/poor yield in MK to platelet differentiation step
Dendritic cellsAntigen-specific vaccines for cancer or HIVEBs, serum- and stroma-free culture conditionsCost-effective off-the-shelf potential; stimulates antigen- specific T-cell responseAnimal models needed to test in vivo efficacy; may cause undesired side effects
Natural killer cellsNatural or antibody-assisted anticancer cytotoxicityEBs with 2-step stroma-coculture and sorting of rare CD34+/CD45+ cellsAnimal models suggest hES-derived NKs are highly effectiveReliance on 2 steps of stroma coculture; need for sorting may hinder clinical scaleup
T cellsantigen-specific anticancer or anti-HIV adoptive cell transferhandpicking hematopoietic zones and 2-step stroma coculture including delta ligand expressionCost-effective off-the-shelf therapeutic potentialNot efficient, needs further study; complex biology and high in vivo risks