Journal article
HOXB4 But Not BMP4 Confers Self-Renewal Properties to ES-Derived Hematopoietic Progenitor Cells
Transplantation, Vol.86(12), pp.1803-1809
2008
DOI: 10.1097/TP.0b013e31818fe741
PMCID: PMC2656378
PMID: 19104426
Abstract
Background: Achieving transplantation tolerance remains an unresolved clinical challenge. Although bone marrow transplantation (BMT) induces mixed chimerism that establishes transplantation tolerance, the preconditioning regimens required for BMT to succeed are too prohibitive for routine use. Recently, embryonic stem (ES) cells have emerged as a potential alternative cell source to bone marrow cells. However, it remains difficult to efficiently differentiate these cells into hematopoietic cells. Here, we tested whether bone morphogenetic protein-4 (BMP-4)-treated or HOXB4-transduced ES-derived hematopoietic cells engraft permanently inducing long-term mixed chimerism.
Methods: Initially, 129 SvJ R1 ES cells (H-2) were treated with BMP-4 for 36 hr. The cells were phenotyped and polymerase chain reaction studies were performed. The robustness of mixed chimerism was tested using mixed lymphocyte cultures and skin grafts. Chimeric MRL (H-2) animals received grafts from 129SvJ (H-2), Balb/c (H-2) or class II (H-2) donor mice, and graft survival was monitored. Additionally, HOXB4-transduced ES cells were shown to more efficiently differentiate into hematopoietic progenitor cells that engrafted in allogenic and syngeneic recipient mice.
Results: BMP-4 treatment induced Sca-1 expression and up-regulated HOXB4, BMP-4, and BMP receptor gene expressions. The cells induced transient mixed chimerism, whereas cells derived from HOXB4-transduced ES cells engrafted long term (>100 days).
Conclusions: Although BMP-4 promotes hematopoiesis of ES cells, its impact is only transient, whereas permanent ectopic expression of HOXB4 significantly confers self-renewal and long-term engraftment of ES-derived hematopoietic cells. This strategy could facilitate the establishment of an alternative source of hematopoietic cells that could induce transplantation tolerance.
Details
- Title: Subtitle
- HOXB4 But Not BMP4 Confers Self-Renewal Properties to ES-Derived Hematopoietic Progenitor Cells
- Creators
- Sabrina BONDE - Department of Internal Medicine, University of Iowa Hospitals and Clinics and VA Medical Center, Iowa City, IA, United StatesAmy M DOWDEN - Department of Internal Medicine, University of Iowa Hospitals and Clinics and VA Medical Center, Iowa City, IA, United StatesKun-Ming CHAN - Department of General Surgery, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Taoyuan, Taiwan, Province of ChinaWilliam B TABAYOYONG - Department of Internal Medicine, University of Iowa Hospitals and Clinics and VA Medical Center, Iowa City, IA, United StatesNicholas ZAVAZAVA - Department of Internal Medicine, University of Iowa Hospitals and Clinics and VA Medical Center, Iowa City, IA, United States
- Resource Type
- Journal article
- Publication Details
- Transplantation, Vol.86(12), pp.1803-1809
- DOI
- 10.1097/TP.0b013e31818fe741
- PMID
- 19104426
- PMCID
- PMC2656378
- NLM abbreviation
- Transplantation
- ISSN
- 0041-1337
- eISSN
- 1534-6080
- Publisher
- Lippincott Williams & Wilkins
- Language
- English
- Date published
- 2008
- Academic Unit
- Roy J. Carver Department of Biomedical Engineering; Stead Family Department of Pediatrics; Immunology; Internal Medicine
- Record Identifier
- 9984093219502771
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