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Most existing treatments for pathological bone loss inhibit osteoclasts (bone-destroying cells) to limit bone degradation. However, by doing this, they also prevent bone formation since it is stimulated by the presence of these very same osteoclast cells. Researchers from the CNRS, Inserm and the Université de Montpellier and Université Jean Monnet – Saint-Étienne have developed a new approach for preventing the destructive activity of osteoclasts without affecting their viability. This involves disrupting their anchorage to the bone, which has been found to be possible using a small chemical compound called C21. This innovative treatment can protect mice from bone loss associated with osteolytic diseases such as post-menopausal osteoporosis, rheumatoid arthritis and bone metastasis, without affecting bone formation. This research was published on 3 February 2015 in the journal Nature Communications.
© Inserm/Boivin, Georges
In 1973, the rare syndrome of uncombable hair or 'pili trianguli et canaliculi' was described by a Toulouse dermatologist. More than 40 years later, Michel Simon, Inserm research director his colleagues at the 'Epidermal Differentiation and Rheumatoid Autoimmunity' Unit [UDEAR] (Inserm/CNRS/Toulouse III ...
Chemical substances that are safe for humans when taken in isolation can become harmful when they are combined. Three research teams bringing together researchers from Inserm and CNRS in Montpellier have elucidated in vitro a molecular mechanism that could contribute to ...
Pharmacological inhibition of Dock5 prevents osteolysis by affecting osteoclast podosome organization while preserving bone formation. Virginie Vives, Gaëlle Cres, Christian Richard, Muriel Busson, Yann Ferrandez, Anne-Gaelle Planson, Mahel Zeghouf, Jacqueline Cherfils, Luc Malaval and Anne Blangy. Nature communications, 3 février 2015. DOI : 10.1038/ncomms7218.