rdf:type |
|
lifeskim:mentions |
|
pubmed:issue |
17
|
pubmed:dateCreated |
2011-4-28
|
pubmed:abstractText |
Na(V)1.5 sodium channels enhance the invasiveness of breast cancer cells through the acidic-dependent activation of cysteine cathepsins. Here, we showed that the Na(+)/H(+) exchanger type 1 (NHE1) was an important regulator of H(+) efflux in breast cancer cells MDA-MB-231 and that its activity was increased by Na(V)1.5. Na(V)1.5 and NHE1 were colocalized in membrane rafts containing caveolin-1. The inhibition of Na(V)1.5 or NHE1 induced a similar reduction in cell invasiveness and extracellular matrix degradation; no additive effect was observed when they were simultaneously inhibited. Our study suggests that Na(V)1.5 and NHE1 are functionally coupled and enhance the invasiveness of cancer cells by increasing H(+) efflux.
|
pubmed:language |
eng
|
pubmed:journal |
|
pubmed:citationSubset |
IM
|
pubmed:chemical |
|
pubmed:status |
MEDLINE
|
pubmed:month |
Apr
|
pubmed:issn |
1476-5594
|
pubmed:author |
|
pubmed:issnType |
Electronic
|
pubmed:day |
28
|
pubmed:volume |
30
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
|
pubmed:pagination |
2070-6
|
pubmed:dateRevised |
2011-7-22
|
pubmed:meshHeading |
pubmed-meshheading:21170089-Biological Transport,
pubmed-meshheading:21170089-Breast Neoplasms,
pubmed-meshheading:21170089-Cation Transport Proteins,
pubmed-meshheading:21170089-Caveolae,
pubmed-meshheading:21170089-Cell Line, Tumor,
pubmed-meshheading:21170089-Humans,
pubmed-meshheading:21170089-Hydrogen-Ion Concentration,
pubmed-meshheading:21170089-Intracellular Space,
pubmed-meshheading:21170089-Muscle Proteins,
pubmed-meshheading:21170089-Neoplasm Invasiveness,
pubmed-meshheading:21170089-Protein Transport,
pubmed-meshheading:21170089-Protons,
pubmed-meshheading:21170089-Sodium Channels,
pubmed-meshheading:21170089-Sodium-Hydrogen Antiporter
|
pubmed:year |
2011
|
pubmed:articleTitle |
Na(V)1.5 enhances breast cancer cell invasiveness by increasing NHE1-dependent H(+) efflux in caveolae.
|
pubmed:affiliation |
Inserm U921, Nutrition, Croissance et Cancer, Université François Rabelais, Faculté de Médecine, Tours, France.
|
pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
|