Biomedical Engineering Reference
In-Depth Information
controlled sequential delivery. Novel biomaterials such as affinity-binding alginate
may serve as a platform for such devices. The utilization of such controllable
biomaterials may also enable the creation of innovative complex hierarchical
matrices for the potential regeneration of organized tissues such as the osteo-
chondral tissue. New synthetic small molecules with regulatory functions, as well
as new synthetic polymers for control over stem cell fate decisions, are yet to be
found, possibly via high-throughput screening technologies. Moreover, the design
and application of ''smart'' bioreactors will facilitate better understanding of the
dynamic nature of stem cell microenvironment, and subsequently precise control
over biochemical and physical signals for stem cell fate decisions. Finally, scale-
up technologies will be needed for realizing stem cell potential in clinical research.
To conclude, given the complexity of stem cell fate control, much has still to be
learned, yet our growing knowledge has already made major breakthroughs in
manipulating stem cell fate, raising more high expectations from future research.
References
1. Scadden DT (2006) The stem-cell niche as an entity of action. Nature 441:1075-1079
2. Metallo CM, Mohr JC, Detzel CJ et al (2007) Engineering the stem cell microenvironment.
Biotechnol Prog 23:18-23
3. Barrilleaux B, Phinney DG, Prockop DJ, O'Connor KC (2006) Review: ex vivo engineering
of living tissues with adult stem cells. Tissue Eng 12:3007-3019
4. Calvi
LM,
Adams
GB,
Weibrecht
KW
et
al
(2003)
Osteoblastic
cells
regulate
the
haematopoietic stem cell niche. Nature 425:841-846
5. Jones DL, Wagers AJ (2008) No place like home: anatomy and function of the stem cell
niche. Nat Rev Mol Cell Biol 9:11-21
6. Nilsson SK, Johnston HM, Whitty GA et al (2005) Osteopontin, a key component of the
hematopoietic stem cell niche and regulator of primitive hematopoietic progenitor cells.
Blood 106:1232-1239
7. Yoshihara H, Arai F, Hosokawa K et al (2007) Thrombopoietin/MPL signaling regulates
hematopoietic stem cell quiescence and interaction with the osteoblastic niche. Cell Stem
Cell 1:685-697
8. Arai
F,
Hirao
A,
Ohmura
M
et
al
(2004)
Tie2/angiopoietin-1
signaling
regulates
hematopoietic stem cell quiescence in the bone marrow niche. Cell 118:149-161
9. Adams GB, Chabner KT, Alley IR et al (2006) Stem cell engraftment at the endosteal niche
is specified by the calcium-sensing receptor. Nature 439:599-603
10. Parmar K, Mauch P, Vergilio JA, Sackstein R, Down JD (2007) Distribution of
hematopoietic stem cells in the bone marrow according to regional hypoxia. Proc Natl
Acad Sci USA 104:5431-5436
11. Jang YY, Sharkis SJ (2007) A low level of reactive oxygen species selects for primitive
hematopoietic stem cells that may reside in the low-oxygenic niche. Blood 110:3056-3063
12. Duncan AW, Rattis FM, DiMascio LN et al (2005) Integration of Notch and Wnt signaling
in hematopoietic stem cell maintenance. Nat Immunol 6:314-322
13. Di Maggio N, Piccinini E, Jaworski M et al (2011) Toward modeling the bone marrow niche
using scaffold-based 3D culture systems. Biomaterials 32:321-329
14. Pittenger MF, Mackay AM, Beck SC et al (1999) Multilineage potential of adult human
mesenchymal stem cells. Science 284:143-147
Search WWH ::




Custom Search