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Updated: May 18, 2026
06:21
In Vitro Generation of Somite Derivatives from Human Induced Pluripotent Stem Cells
Published on: April 25, 2019
Human very small embryonic-like cells generate skeletal structures, in vivo
Aaron M Havens1, Yusuke Shiozawa, Younghun Jung
1Department of Periodontics and Oral Medicine, University of Michigan School of Dentistry, Ann Arbor, Michigan 48109-1078, USA.
Stem Cells and Development
|October 2, 2012
Summary
Human very small embryonic-like (hVSEL) cells, multipotent stem cells, successfully generated new bone tissue in a mouse model. This research supports future cell-based therapies for skeletal repair and connective tissue disorders.
Area of Science:
- Stem Cell Biology
- Regenerative Medicine
- Biomaterials Science
Background:
- Human very small embryonic-like (hVSEL) cells are multipotent stem cells residing in bone marrow, crucial for tissue turnover and regeneration.
- Elevated blood levels of VSEL cells indicate injury response, and they possess demonstrated tissue repair capabilities.
- Characterized adult hVSEL cells express pluripotency markers (Oct-4, Nanog) and have potential to differentiate into all three germ lineages.
Purpose of the Study:
- To investigate the potential of human very small embryonic-like (hVSEL) cells to regenerate bone tissue in vivo.
- To evaluate the efficacy of hVSEL cells in a murine model of skeletal repair.
Main Methods:
- hVSEL cells were isolated from mobilized blood via apheresis, then enriched using elutriation and fluorescence-activated cell sorting.
- Collagen sponge scaffolds loaded with 2,000-30,000 hVSEL cells were implanted into cranial defects in SCID mice.
- Microcomputed tomography, histology, human leukocyte antigen antibody staining, and human-specific Alu sequence detection were employed for analysis.
Main Results:
- Microcomputed tomography revealed mineralized tissue formation within cranial defects containing hVSEL cells after 3 months.
- Histological examination showed significant bone formation and organized cellular structures in hVSEL cell-treated defects compared to controls.
- Human leukocyte antigen staining confirmed the newly generated bone tissue was of human origin, and human osteocalcin was detected in peripheral blood.
Conclusions:
- This study demonstrates that hVSEL cells can generate human bone tissue in a mouse model, highlighting their osteogenic potential.
- The findings suggest hVSEL cells are a promising candidate for cell-based regenerative therapies for bone and connective tissue disorders.
- Further research into hVSEL cell-based therapies could address conditions like osteoporosis, fracture repair, and neoplastic bone defects.
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