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

Ameloblastoma induces osteoclastogenesis: a possible role of ameloblastoma in expanding in the bone.

Ameloblastoma, a tumor located in bone, when neglected, can perforate the bone and, ultimately, spread into the soft tissues. To expand in the bone, ameloblastoma must have a mechanism of resorbing the surrounding bone. However, the mechanism for bone resorption is poorly understood. In the present study, we found that RANKL and TNFalpha were expressed and secreted by ameloblastoma cells, and was proven to induce osteoclastogenesis. Our present results also showed that phosphorylation of p38, SAPK, p44/42 and Akt were upregulated under treatment of 10xCM (concentrated conditioned media of AM-1 cells). We also noticed formation of resorption lacunae on dentin slice by 10xCM-induced osteoclast-like MNCs. These results suggested that ameloblastoma by secreting RANKL and TNFalpha could induce osteoclastogenesis.[1]

References

  1. Ameloblastoma induces osteoclastogenesis: a possible role of ameloblastoma in expanding in the bone. Sandra, F., Hendarmin, L., Kukita, T., Nakao, Y., Nakamura, N., Nakamura, S. Oral Oncol. (2005) [Pubmed]
 
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