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2015 ; 5
(ä): 16017
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Identification of the active components in Bone Marrow Soup: a mitigator against
irradiation-injury to salivary glands
#MMPMID26526154
Fang D
; Hu S
; Liu Y
; Quan VH
; Seuntjens J
; Tran SD
Sci Rep
2015[Nov]; 5
(ä): 16017
PMID26526154
show ga
In separate studies, an extract of soluble intracellular contents from whole bone
marrow cells, named "Bone Marrow (BM) Soup", was reported to either improve
cardiac or salivary functions post-myocardial infarction or irradiation (IR),
respectively. However, the active components in BM Soup are unknown. To
demonstrate that proteins were the active ingredients, we devised a method using
proteinase K followed by heating to deactivate proteins and for safe injections
into mice. BM Soup and "deactivated BM Soup" were injected into mice that had
their salivary glands injured with 15Gy IR. Control mice received either
injections of saline or were not IR. Results at week 8 post-IR showed the
'deactivated BM Soup' was no better than injections of saline, while injections
of native BM Soup restored saliva flow, protected salivary cells and blood
vessels from IR-damage. Protein arrays detected several angiogenesis-related
factors (CD26, FGF, HGF, MMP-8, MMP-9, OPN, PF4, SDF-1) and cytokines (IL-1ra,
IL-16) in BM Soup. In conclusion, the native proteins (but not the nucleic acids,
lipids or carbohydrates) were the therapeutic ingredients in BM Soup for
functional salivary restoration following IR. This molecular therapy approach has
clinical potential because it is theoretically less tumorigenic and immunogenic
than cell therapies.
|Acinar Cells/cytology/metabolism
[MESH]
|Animals
[MESH]
|Blood Vessels/drug effects/physiology
[MESH]
|Bone Marrow Cells/cytology/*metabolism
[MESH]
|Cell Proliferation/drug effects
[MESH]
|Culture Media, Conditioned/pharmacology
[MESH]
|Cytokines/metabolism
[MESH]
|Endopeptidase K/metabolism
[MESH]
|Female
[MESH]
|Gamma Rays
[MESH]
|Intercellular Signaling Peptides and Proteins/metabolism
[MESH]