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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
2010-4-16
pubmed:abstractText
Immunofluorescent analysis of connexin-43 was carried out on preparations of fixed and living cultures of rat and human glioma cells, HEK293 cells, and frozen sections of the rat brain with experimental glioma using monoclonal antibodies to recombinant extracellular fragment of connexin-43 (E2 second extracellular loop). These monoclonal antibodies visualized membrane and cytoplasmic pools of connexin-43 in preparations fixed with paraformaldehyde. Incubation of monoclonal antibodies to E2 extracellular loop with living cells led to visualization of only connexin hemichannels on cell membranes. No immunofluorescence characteristic of dimer connexons, organizing the gap junction, was detected. This fact indicates that antibodies to connexin-43 extracellular loop E2, obtained in our study, specifically react with target antigen solely at the stage of connexon presentation on the membrane in the form of hemichannels. These monoclonal antibodies can be used for immunophenotyping and sorting of connexin-43-positive cells in vitro and as the guide molecules in addressed delivery of diagnostic preparations and drugs to glioma cells in vivo.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
1573-8221
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
148
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
725-30
pubmed:meshHeading
pubmed:year
2009
pubmed:articleTitle
Immunofluorescent analysis of connexin-43 using monoclonal antibodies to its extracellular domain.
pubmed:affiliation
Department of Basic and Applied Neurobiology, V. P. Serbskii Center of Social and Forensic Psychiatry, Moscow, Russia. serpoff@gmail.com
pubmed:publicationType
Journal Article