Axonal-transport-mediated gene transduction in the interior of rat bone.

Autor: Toshitaka Okabayashi, Kuniaki Nakanishi, Toyokazu Tsuchihara, Hiroshi Arino, Yasuo Yoshihara, Susumu Tominaga, Maki Uenoyama, Shinya Suzuki, Masataka Asagiri, Koichi Nemoto
Jazyk: angličtina
Rok vydání: 2010
Předmět:
Zdroj: PLoS ONE, Vol 5, Iss 9, p e744 (2010)
Druh dokumentu: article
ISSN: 1932-6203
DOI: 10.1371/journal.pone.0013034
Popis: BACKGROUND: Gene transduction has been considered advantageous for the sustained delivery of proteins to specific target tissues. However, in the case of hard tissues, such as bone, local gene delivery remains problematic owing to anatomical accessibility limitations of the target sites. METHODOLOGY/PRINCIPAL FINDINGS: Here, we evaluated the feasibility of exogenous gene transduction in the interior of bone via axonal transport following intramuscular administration of a nonviral vector. A high expression level of the transduced gene was achieved in the tibia ipsilateral to the injected tibialis anterior muscle, as well as in the ipsilateral sciatic nerve and dorsal root ganglia. In sciatic transection rats, the gene expression level was significantly lowered in bone. CONCLUSIONS/SIGNIFICANCE: These results suggest that axonal transport is critical for gene transduction. Our study may provide a basis for developing therapeutic methods for efficient gene delivery into hard tissues.
Databáze: Directory of Open Access Journals