Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
2010-8-18
pubmed:abstractText
Control of phosphate (P(i)) homeostasis is essential for many biologic functions and inappropriate low levels of P(i) in plasma have been suggested to associate with several pathological states, including renal stone formation and stone recurrence. P(i) homeostasis is achieved mainly by adjusting the renal reabsorption of P(i) to the body's requirements. This task is performed to a major extent by the Na/Pi cotransporter NaPi-IIa that is specifically expressed in the brush border membrane of renal proximal tubules. While the presence of tight junctions in epithelial cells prevents the diffusion and mixing of the apical and basolateral components, the location of a protein within a particular membrane subdomain (i.e., the presence of NaPi-IIa at the tip of the apical microvilli) often requires its association with scaffolding elements which directly or indirectly connect the protein with the underlying cellular cytoskeleton. NaPi-IIa interacts with the four members of the Na(+)/H(+) exchanger regulatory factor family as well as with the GABA(A)-receptor associated protein . Here we will discuss the most relevant findings regarding the role of these proteins on the expression and regulation of the cotransporter, as well as the impact that their absence has in P(i) homeostasis.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
1434-0879
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
38
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
271-6
pubmed:meshHeading
pubmed:year
2010
pubmed:articleTitle
NaPi-IIa interacting proteins and regulation of renal reabsorption of phosphate.
pubmed:affiliation
Institute of Physiology and Zurich Center for Integrative Human Physiology (ZIHP), University of Zurich, Winterthurerstr. 190, 8057 Zurich, Switzerland. nati.hernando@access.uzh.ch
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't