摘要
Thehedgehog-patched(hh-ptc)intercellularsignalingpathwayhasrecentlybeenshowntocontroltheproliferationofepithelialstemcellsinbothDrosophilaandVertebrated.MutantandectopicexpressionanalysesinDrosophilasuggestthattheHHproteindiffusesfromthesignalingcellstopromotetheproliferationofnearbyovariansomaticstemcellsbyantagonizingthesuppressionofitsreceptorPTCtowardstheCItranscriptionfactorinthestemcells.Consequently,thetranscriptionofCIdependentgenesleadstostemcellproliferation.Thisregulatorypathwayappearstofunctionalsoinvertebrates,wheredefectsinptccausebasalcellcarcinoma,tumorsofepidermalstemcellorigin.BasalcellcarcinomacanalsobeinducedbyectopicexpressionofSonichedgehog(shh)orGlil,thevertebratehomologofci.Thesestudiessuggesttheconservationofthehhsignalingpathwayincontrollingepithelialstemcelldivisionsamongdifferentorganisma.
出版日期
1998年01月11日(中国Betway体育网页登陆平台首次上网日期,不代表论文的发表时间)