Connexin43 and pannexin1 channels in osteoblasts: who is the "hemichannel"?
Connexin43 and pannexin1 channels in osteoblasts: who is the "hemichannel"?
复制标题
DOI:
10.1007/s00232-012-9462-2
复制
发表时间:
2012-07
影响因子:
2.4
通讯作者:
Spray, David C.
中科院分区:
文献类型:
--
作者:
Thi, Mia M.;Islam, Shalena;Suadicani, Sylvia O.;Spray, David C.
Osteoblasts sense and respond to mechanical stimuli in a process involving influx and release of large ions and signaling molecules. Unapposed gap junction hemichannels formed of connexin43 (Cx43) have been proposed as a major route for such exchange, and in particular for release of ATP and prostaglandin E2 (PGE2) in osteocytes. However, we have found that Cx43-null osteoblasts have unaltered mechanically-induced PGE2 release and ATP-induced YoPro dye uptake. In contrast, PGE2 release in response to fluid shear stress is abolished in P2X7 receptor (P2X7R) null osteoblasts and ATP-induced dye uptake is attenuated following treatment of wildtype cells with a P2X7R or Pannexin1 (Panx1) channel blocker. These data indicate that Panx1 channels, in concert with P2X7R, likely form a molecular complex that performs the hemichannel function in osteoblast mechanosignaling.
登录
查看更多内容
影响因子:
3.3
作者:
Cherian, PP;Siller-Jackson, AJ;Jiang, JX
通讯作者:
Jiang, JX
DOI:
10.1016/s0022-5320(73)80040-1
发表时间:
1973-01-01
期刊:
JOURNAL OF ULTRASTRUCTURE RESEARCH
影响因子:
--
作者:
JOHNSON, RG;HERMAN, WS;PREUS, DM
通讯作者:
PREUS, DM
影响因子:
--
作者:
Jiang, JX;Cherian, PP
通讯作者:
Cherian, PP
DOI:
10.1073/pnas.1009382107
发表时间:
2010-08-03
影响因子:
11.1
作者:
Burra, Sirisha;Nicolella, Daniel P.;Jiang, Jean X.
通讯作者:
Jiang, Jean X.
影响因子:
56.9
作者:
JOHNSON, RG;SHERIAN, JD
通讯作者:
SHERIAN, JD