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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 
 
 

Antisense oligonucleotides to NF-kappaB improve survival in bleomycin-induced pneumopathy of the mouse.

We examined the effect of antisense oligonucleotides to the p65 subunit of NF-kappaB on the survival of bleomycin (BLM)-induced pneumonitis in C57BL/6 mice (female, 8 wk of age, 17 to 20 g body weight). Fifty-three percent and all control mice died within 6 to 9 d after intravenous administration of 150 and 300 mg/kg BLM alone, respectively. The intravenous administration of the antisense oligonucleotides (900 microgram/animal dissolved in 200 microliter saline, 6 h before and 5 d after BLM administration) significantly improved the survival rate to 100 and 40% in 150- and 300-mg/kg-treated animals, respectively. The antisense oligonucleotides also significantly improved the loss of body weight, the increase in lung hydroxyproline, and histologic changes by BLM, whereas the antisense oligonucleotides themselves did not produce any significant changes in the behavior or lung histology. Both peripheral blood monocytes and alveolar macrophages were confirmed to contain large amounts of intracellular antisense oligonucleotides after BLM injection by FITC-labeled fluorescent microscopy. Further, Western blotting confirmed the inhibition of NF-kappaB in macrophages by the antisense oligonucleotides. These findings suggest that the antisense oligonucleotides are incorporated into activated alveolar macrophages and ameleriorate the lung injury and pneumonitis/fibrosis, thereby improving the survival of BLM-induced pneumopathy in mice.[1]

References

  1. Antisense oligonucleotides to NF-kappaB improve survival in bleomycin-induced pneumopathy of the mouse. Zhang, X.Y., Shimura, S., Masuda, T., Saitoh, H., Shirato, K. Am. J. Respir. Crit. Care Med. (2000) [Pubmed]
 
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