Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
355 Suppl
pubmed:dateCreated
1999-2-10
pubmed:abstractText
Various proteins have the potential to initiate and accelerate fracture healing. Although osteogenic growth factors are the most prominent of these, there also may be important roles for other agents including growth factor receptors, angiogenic factors, and cytokine antagonists. Gene based delivery systems offer the potential to achieve therapeutic levels of these proteins locally within the fracture site for sustained times. Moreover, these delivery systems may deliver their products in a more biologically active form than that achieved by the exogenous application of recombinant proteins. Genes may be transferred to fractures by direct in vivo delivery or by indirect ex vivo delivery, using viral or nonviral vectors. Two examples are described in this article. With an ex vivo procedure, it was possible to transfer lac Z and neo(r) marker genes to the bones of mice, using retroviral transduction of bone marrow stromal cells. Gene expression in vivo persisted for several weeks. This procedure has the advantage of providing not only gene products but also osteoprogenitor cells to sites of bone healing. In vivo, local transfer of the lucerifase and lac Z marker genes was accomplished in a segmental defect model in the rabbit using adenoviral vectors. Under these conditions, gene expression in most tissues in and around the defect lasted between 2 and 6 weeks. These data encourage additional development of gene therapy for fracture healing. Such developments should go hand in hand with studies in the basic biology of fracture healing.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
0009-921X
pubmed:author
pubmed:issnType
Print
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
S148-53
pubmed:dateRevised
2006-4-21
pubmed:meshHeading
pubmed-meshheading:9917635-Adenoviridae, pubmed-meshheading:9917635-Angiogenesis Inducing Agents, pubmed-meshheading:9917635-Animals, pubmed-meshheading:9917635-Bone Morphogenetic Proteins, pubmed-meshheading:9917635-Bone and Bones, pubmed-meshheading:9917635-Cytokines, pubmed-meshheading:9917635-Fracture Healing, pubmed-meshheading:9917635-Fractures, Bone, pubmed-meshheading:9917635-Gene Expression, pubmed-meshheading:9917635-Gene Therapy, pubmed-meshheading:9917635-Gene Transfer Techniques, pubmed-meshheading:9917635-Genetic Vectors, pubmed-meshheading:9917635-Lac Operon, pubmed-meshheading:9917635-Luciferases, pubmed-meshheading:9917635-Mice, pubmed-meshheading:9917635-Rabbits, pubmed-meshheading:9917635-Receptors, Growth Factor, pubmed-meshheading:9917635-Recombinant Proteins, pubmed-meshheading:9917635-Retroviridae, pubmed-meshheading:9917635-Stem Cells, pubmed-meshheading:9917635-Transduction, Genetic
pubmed:year
1998
pubmed:articleTitle
Potential role for gene therapy in the enhancement of fracture healing.
pubmed:affiliation
Department of Orthopaedic Surgery, University of Pittsburgh School of Medicine, PA, USA.
pubmed:publicationType
Journal Article