Inhibition of Nf-ҝb prevents trauma-induced heterotopic ossification in rat model
- Published
- Accepted
- Subject Areas
- Orthopedics
- Keywords
- Nf-ҝb/P65, Pharmacologic inhibition, inflammation, heterotopic ossification, PDTC
- Copyright
- © 2017 Ju et al.
- Licence
- This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, reproduction and adaptation in any medium and for any purpose provided that it is properly attributed. For attribution, the original author(s), title, publication source (PeerJ Preprints) and either DOI or URL of the article must be cited.
- Cite this article
- 2017. Inhibition of Nf-ҝb prevents trauma-induced heterotopic ossification in rat model. PeerJ Preprints 5:e2709v1 https://doi.org/10.7287/peerj.preprints.2709v1
Abstract
Background. To find a better prophylactic regimen, the pathogenesis of acquired heterotopic ossification (AHO) must be more understood. To date, AHO formation is largely thought to be related to inflammation, which is activated by trauma, resulting in AHO by up-regulation of pro-osteogenic genes. Methods. Brain-traumatic/burn/tenotomy model is firstly used in experiment. At first, 44 rats were randomly divided into two groups: E group and C group. Two rats in every group were euthanized during second, third, fourth, sixth, eighth, tenth weeks for collecting tendon. The remaining rats survived until tenth week for X-Ray radiation examination to confirm the size of AHO.Then, 124 rats were randomly divided into four group: P group, L group, M group, H group. The three rats of every group were euthanized during every week of the first seven weeks for collecting tendon to detect P65 protein. The remaining rats survived until tenth week for X-Ray examination to confirm the size of AHO. Results. The success rate of Brain-traumatic/Burn/Tenotomy model is 100%. Difference of P65 expression in E group and in C group are statistically significant,and that in E group is higher.Pharmacologic inhibition of Nf-ҝb signaling pathway limits AHO formation, and that The bone formation content of M group is decreased. Conclusion. Brain-traumatic/Burn/Tenotomy model is highly reliable.Results indicate that the Nf-ҝb /p65 signaling response occurs in the forming process of AHO. PDTC limits formation of AHO. The most effective concentration is 6mg/ml for local injection.
Author Comment
To find a better prophylactic regimen, the pathogenesis of acquired heterotopic ossification (AHO) must be more understood. To date, AHO formation is largely thought to be related to inflammation, which is activated by trauma, resulting in AHO by up-regulation of pro-osteogenic genes. Brain-traumatic/Burn/Tenotomy model is highly reliable. Results indicate that the Nf-ҝb /p65 signaling response occurs in the forming process of AHO. PDTC limits formation of AHO. The most effective concentration is 6mg/ml for local injection.