Chinese Journal of Dental Research

Chin J Dent Res
CN 10-1194/R . ISSN 1462-6446 . eISSN 1867-5646 . Quarterly

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Chin J Dent Res 2024;27(1):17–28; doi:10.3290/j.cjdr.b5136791

The Role of DSPP in Dentine Formation and Hereditary Dentine Defects

Writer:Jie JIA, Zhuan BIAN, Yaling SONG Clicked:

In December 2019, some new cases of coronavirus disease-19 (COVID-19) were found in Wuhan City, Hubei Province, China. The number of infected cases increased rapidly and spread continuously at home and abroad. Tens of thousands of medical staff throughout the country have rushed to Wuhan to invest in intensive medical treatment. Because of high mental tension and work intensity, unable to drink water for hours after entering the isolation ward and insufficient sleep, they might suffer from oral mucosal ulcers and other oral mucosal diseases. It is known that not only medical staff, but also police officers, community workers, long-term family members, and even patients with mild COVID-19, as well as those with oral mucosal disease in the past, all claim they feel uncomfortable with oral mucosal disorders, such as oral ulcer caused by great mental pressure, which mainly include recurrent aphthous ulcer (RAU), chronic cheilitis and oral lichen planus. This article will give some suggestions on the prevention and

The dentine sialophosphoprotein (DSPP) gene is the only identified causative gene for dentinogenesis imperfecta type 2 (DGI-II), dentinogenesis imperfecta type 3 (DGI-III) and dentine dysplasia type 2 (DD-II). These three disorders may have similar molecular mechanisms involved in bridging the DSPP mutations and the resulting abnormal dentine mineralisation. The DSPP encoding proteins DSP (dentine sialoprotein) and DPP (dentine phosphoprotein) are positive regulators of dentine formation and perform a function during dentinogenesis. The present review focused on the recent findings and viewpoints regarding the relationship between DSPP and dentinogenesis as well as mineralisation from multiple perspectives, involving studies relating to spatial structure and tissue localisation of DSPP, DSP and DPP, the biochemical characteristics and biological function of these molecules, and the causative role of the proteins in phenotypes of the knockout mouse model and in hereditary dentine defects.

Key words: dentine mineralisation, dentine sialophosphoprotein, hereditary dentine defects, mutation
(editor:CJDR)