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Expression of Pannexin3 in human odontoblast-like cells and its hemichannel function in mediating ATP release.

Abstract：

OBJECTIVE:The aim of this study is to investigate the expression of pannexin3 (Panx3) in human odontoblast-like cells (hOBs) and its hemichannel function in mediating ATP release. METHODS:RT-PCR and immunofluorescence analysis were used to detect the expression of pannexins (Panxs) in human dental pulp tissue and cultured cells. To determine the role of Panx3 in ATP release, hOBs were infected with Panx3-overexpression lentivirus, Panx3-shRNA lentivirus or control lentivirus and then stimulated with cold buffer. Intracellular ATP was monitored using quinacrine, and then semi-quantitatively analyzed. In the meantime, the ATP release was quantitatively analyzed using the bioluminescence method when the cells were exposed to cold stimulus. RESULTS:Panx3 mRNA and protein were found in dental pulp tissue and cultured cells. Upon cold stimulus, intracellular ATP was released into the extracellular space. Overexpression of Panx3 accelerated ATP release, whereas inhibition of Panx3 suppressed this process. CONCLUSION:Panx3 hemichannel is expressed in human odontoblast-like cells and mediates ATP release into the extracellular space.

journal_name

Arch Oral Biol

journal_title

Archives of oral biology

authors

Fu D,Song F,Sun H,Pei D,Wang Y,Lei J,Huang C

doi

10.1016/j.archoralbio.2015.07.005

subject

Has Abstract

pub_date

2015-10-01 00:00:00

pages

1510-6

issue

10

eissn

0003-9969

issn

1879-1506

pii

S0003-9969(15)30004-2

journal_volume

60

pub_type

杂志文章

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