Article: Irradiation induces bone injury by damaging bone marrow microenvironment for stem cells

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TitleIrradiation induces bone injury by damaging bone marrow microenvironment for stem cells
AuthorsCao, X3
Wu, X2 3
Frassica, D3
Yu, B3
Pang, L2 3
Xian, L3
Wan, M3
Lei, W3
Armour, M3
Tryggestad, E3
Wong, J3
Wen, CY1
Lu, WW1
Frassica, FJ3
KeywordsAngiography
CFU-fibroblast
Differentiation
Repopulation
Self-renewal
Issue Date2011
PublisherNational Academy of Sciences. The Journal's web site is located at http://www.pnas.org
CitationProceedings Of The National Academy Of Sciences Of The United States Of America, 2011, v. 108 n. 4, p. 1609-1614 [How to Cite?]
DOI: http://dx.doi.org/10.1073/pnas.1015350108
AbstractRadiation therapy can result in bone injury with the development of fractures and often can lead to delayed and nonunion of bone. There is no prevention or treatment for irradiation-induced bone injury. We irradiated the distal half of the mouse left femur to study the mechanism of irradiation-induced bone injury and found that no mesenchymal stem cells (MSCs) were detected in irradiated distal femora or nonirradiated proximal femora. The MSCs in the circulation doubled at 1 week and increased fourfold after 4 wk of irradiation. The number of MSCs in the proximal femur quickly recovered, but no recovery was observed in the distal femur. The levels of free radicals were increased threefold at 1 wk and remained at this high level for 4 wk in distal femora, whereas the levels were increased at 1 wk and returned to the basal level at 4 wk in nonirradiated proximal femur. Free radicals diffuse ipsilaterally to the proximal femur through bone medullary canal. The blood vessels in the distal femora were destroyed in angiographic images, but not in the proximal femora. The osteoclasts and osteoblasts were decreased in the distal femora after irradiation, but no changes were observed in the proximal femora. The total bone volumes were not affected in proximal and distal femora. Our data indicate that irradiation produces free radicals that adversely affect the survival of MSCs in both distal and proximal femora. Irradiation injury to the vasculatures and the microenvironment affect the niches for stem cells during the recovery period.
Descriptioneid_2-s2.0-79955043850 = Erratum: Irradiation induces bone injury by damaging bone marrow microenvironment for stem cells (Proceedings of the National Academy of Sciences of the United States of America (2011) 108 (1609-1614) DOI:10.1073/pnas. 1015350108)
ISSN0027-8424
2011 Impact Factor: 9.681
2011 SCImago Journal Rankings: 1.754
DOIhttp://dx.doi.org/10.1073/pnas.1015350108
ISI Accession Number IDWOS:000286594800074
PubMed Central IDPMC3029740
ReferencesReferences in Scopus
DC Field
Value
dc.contributor.authorCao, X
dc.contributor.authorWu, X
dc.contributor.authorFrassica, D
dc.contributor.authorYu, B
dc.contributor.authorPang, L
dc.contributor.authorXian, L
dc.contributor.authorWan, M
dc.contributor.authorLei, W
dc.contributor.authorArmour, M
dc.contributor.authorTryggestad, E
dc.contributor.authorWong, J
dc.contributor.authorWen, CY
dc.contributor.authorLu, WW
dc.contributor.authorFrassica, FJ
dc.date.accessioned2011-07-27T01:31:41Z
dc.date.available2011-07-27T01:31:41Z
dc.date.issued2011
dc.description.abstractRadiation therapy can result in bone injury with the development of fractures and often can lead to delayed and nonunion of bone. There is no prevention or treatment for irradiation-induced bone injury. We irradiated the distal half of the mouse left femur to study the mechanism of irradiation-induced bone injury and found that no mesenchymal stem cells (MSCs) were detected in irradiated distal femora or nonirradiated proximal femora. The MSCs in the circulation doubled at 1 week and increased fourfold after 4 wk of irradiation. The number of MSCs in the proximal femur quickly recovered, but no recovery was observed in the distal femur. The levels of free radicals were increased threefold at 1 wk and remained at this high level for 4 wk in distal femora, whereas the levels were increased at 1 wk and returned to the basal level at 4 wk in nonirradiated proximal femur. Free radicals diffuse ipsilaterally to the proximal femur through bone medullary canal. The blood vessels in the distal femora were destroyed in angiographic images, but not in the proximal femora. The osteoclasts and osteoblasts were decreased in the distal femora after irradiation, but no changes were observed in the proximal femora. The total bone volumes were not affected in proximal and distal femora. Our data indicate that irradiation produces free radicals that adversely affect the survival of MSCs in both distal and proximal femora. Irradiation injury to the vasculatures and the microenvironment affect the niches for stem cells during the recovery period.
dc.description.naturelink_to_OA_fulltext
dc.descriptioneid_2-s2.0-79955043850 = Erratum: Irradiation induces bone injury by damaging bone marrow microenvironment for stem cells (Proceedings of the National Academy of Sciences of the United States of America (2011) 108 (1609-1614) DOI:10.1073/pnas. 1015350108)
dc.identifier.citationProceedings Of The National Academy Of Sciences Of The United States Of America, 2011, v. 108 n. 4, p. 1609-1614 [How to Cite?]
DOI: http://dx.doi.org/10.1073/pnas.1015350108
dc.identifier.doihttp://dx.doi.org/10.1073/pnas.1015350108
dc.identifier.epage1614
dc.identifier.hkuros188827
dc.identifier.isiWOS:000286594800074
dc.identifier.issn0027-8424
2011 Impact Factor: 9.681
2011 SCImago Journal Rankings: 1.754
dc.identifier.issue4
dc.identifier.pmcidPMC3029740
dc.identifier.pmid21220327
dc.identifier.scopuseid_2-s2.0-79952166223
dc.identifier.spage1609
dc.identifier.urihttp://hdl.handle.net/10722/135298
dc.identifier.volume108
dc.languageeng
dc.publisherNational Academy of Sciences. The Journal's web site is located at http://www.pnas.org
dc.publisher.placeUnited States
dc.relation.ispartofProceedings of the National Academy of Sciences of the United States of America
dc.relation.referencesReferences in Scopus
dc.subject.meshBone Marrow - pathology - radiation effects
dc.subject.meshBone Marrow Cells - metabolism - pathology - radiation effects
dc.subject.meshFemur - metabolism - pathology - radiation effects
dc.subject.meshMembrane Proteins - metabolism
dc.subject.meshMesenchymal Stem Cells - metabolism - pathology - radiation effects
dc.subjectAngiography
dc.subjectCFU-fibroblast
dc.subjectDifferentiation
dc.subjectRepopulation
dc.subjectSelf-renewal
dc.titleIrradiation induces bone injury by damaging bone marrow microenvironment for stem cells
dc.typeArticle
Author Affiliations
  1. The University of Hong Kong
  2. Shihezi University
  3. The Johns Hopkins School of Medicine