Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
2009-6-8
pubmed:abstractText
Canonical Wnt signals are transduced through a Frizzled receptor and either the LRP5 or LRP6 co-receptor; such signals play central roles during development and in disease. We have previously shown that Lrp5 is required for ductal stem cell activity and that loss of Lrp5 delays normal mammary development and Wnt1-induced tumorigenesis. Here we show that canonical Wnt signals through the Lrp6 co-receptor are also required for normal mouse mammary gland development. Loss of Lrp6 compromises Wnt/beta-catenin signaling and interferes with mammary placode, fat pad, and branching development during embryogenesis. Heterozygosity for an inactivating mutation in Lrp6 is associated with a reduced number of terminal end buds and branches during postnatal development. While Lrp6 is expressed in both the basal and luminal mammary epithelium during embryogenesis, Lrp6 expression later becomes restricted to cells residing in the basal epithelial layer. Interestingly, these cells also express mammary stem cell markers. In humans, increased Lrp6 expression is associated with basal-like breast cancer. Taken together, our results suggest both overlapping and specific functions for Lrp5 and Lrp6 in the mammary gland.
pubmed:commentsCorrections
http://linkedlifedata.com/resource/pubmed/commentcorrection/19503830-10759547, http://linkedlifedata.com/resource/pubmed/commentcorrection/19503830-10963602, http://linkedlifedata.com/resource/pubmed/commentcorrection/19503830-11029006, http://linkedlifedata.com/resource/pubmed/commentcorrection/19503830-11029007, http://linkedlifedata.com/resource/pubmed/commentcorrection/19503830-11029008, http://linkedlifedata.com/resource/pubmed/commentcorrection/19503830-11371349, http://linkedlifedata.com/resource/pubmed/commentcorrection/19503830-11553815, http://linkedlifedata.com/resource/pubmed/commentcorrection/19503830-12015398, http://linkedlifedata.com/resource/pubmed/commentcorrection/19503830-12015971, http://linkedlifedata.com/resource/pubmed/commentcorrection/19503830-12121999, http://linkedlifedata.com/resource/pubmed/commentcorrection/19503830-12509515, http://linkedlifedata.com/resource/pubmed/commentcorrection/19503830-12558599, http://linkedlifedata.com/resource/pubmed/commentcorrection/19503830-12626757, http://linkedlifedata.com/resource/pubmed/commentcorrection/19503830-12829800, http://linkedlifedata.com/resource/pubmed/commentcorrection/19503830-14521512, http://linkedlifedata.com/resource/pubmed/commentcorrection/19503830-14668814, http://linkedlifedata.com/resource/pubmed/commentcorrection/19503830-14996712, http://linkedlifedata.com/resource/pubmed/commentcorrection/19503830-15020770, http://linkedlifedata.com/resource/pubmed/commentcorrection/19503830-15142971, http://linkedlifedata.com/resource/pubmed/commentcorrection/19503830-15342465, http://linkedlifedata.com/resource/pubmed/commentcorrection/19503830-15372092, http://linkedlifedata.com/resource/pubmed/commentcorrection/19503830-15537447, http://linkedlifedata.com/resource/pubmed/commentcorrection/19503830-15829953, http://linkedlifedata.com/resource/pubmed/commentcorrection/19503830-16395311, http://linkedlifedata.com/resource/pubmed/commentcorrection/19503830-16397499, http://linkedlifedata.com/resource/pubmed/commentcorrection/19503830-16473279, http://linkedlifedata.com/resource/pubmed/commentcorrection/19503830-16474376, http://linkedlifedata.com/resource/pubmed/commentcorrection/19503830-16678815, http://linkedlifedata.com/resource/pubmed/commentcorrection/19503830-16793760, http://linkedlifedata.com/resource/pubmed/commentcorrection/19503830-16849684, http://linkedlifedata.com/resource/pubmed/commentcorrection/19503830-16933995, http://linkedlifedata.com/resource/pubmed/commentcorrection/19503830-16973609, http://linkedlifedata.com/resource/pubmed/commentcorrection/19503830-17062128, http://linkedlifedata.com/resource/pubmed/commentcorrection/19503830-17081971, http://linkedlifedata.com/resource/pubmed/commentcorrection/19503830-17143291, http://linkedlifedata.com/resource/pubmed/commentcorrection/19503830-17230199, http://linkedlifedata.com/resource/pubmed/commentcorrection/19503830-17493263, http://linkedlifedata.com/resource/pubmed/commentcorrection/19503830-17531967, http://linkedlifedata.com/resource/pubmed/commentcorrection/19503830-17851544, http://linkedlifedata.com/resource/pubmed/commentcorrection/19503830-17873348, http://linkedlifedata.com/resource/pubmed/commentcorrection/19503830-18007652, http://linkedlifedata.com/resource/pubmed/commentcorrection/19503830-18263894, http://linkedlifedata.com/resource/pubmed/commentcorrection/19503830-18385740, http://linkedlifedata.com/resource/pubmed/commentcorrection/19503830-18392048, http://linkedlifedata.com/resource/pubmed/commentcorrection/19503830-18432252, http://linkedlifedata.com/resource/pubmed/commentcorrection/19503830-18765787, http://linkedlifedata.com/resource/pubmed/commentcorrection/19503830-18957245, http://linkedlifedata.com/resource/pubmed/commentcorrection/19503830-19158955, http://linkedlifedata.com/resource/pubmed/commentcorrection/19503830-19225568, http://linkedlifedata.com/resource/pubmed/commentcorrection/19503830-3180222, http://linkedlifedata.com/resource/pubmed/commentcorrection/19503830-7958926, http://linkedlifedata.com/resource/pubmed/commentcorrection/19503830-9550724, http://linkedlifedata.com/resource/pubmed/commentcorrection/19503830-9697701
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
1932-6203
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
4
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
e5813
pubmed:dateRevised
2011-11-17
pubmed:meshHeading
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