Linked Life Data

11137548

Source:http://linkedlifedata.com/resource/pubmed/id/11137548

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
2001-1-26
pubmed:abstractText
Minute amount of Brevetoxin PbTx-3 (400 microg; 0.446 micromol) was converted into an hemisuccinate derivative (PbTx-3 HS) then covalently linked to bovine serum albumin (BSA) and ovalbumin (OVA) in a reversed micellar medium. According to the efficient cyclic synthetic procedure described, the epitope density of the conjugates was around 10 and 20 for OVA and BSA carriers, respectively. The kinetics of antibody production in sequential sera harvested from a single BALB/c mouse immunised by multiple intraperitoneal (i.p.) injections of PbTx-3-BSA conjugate was performed by enzyme-linked immunosorbent assay (ELISA). Two monoclonal antibodies (MAbs) against PbTx-3 were selected from fusion of the mouse immune splenocytes with the P3-X63-Ag 8.653 myeloma cells. In competitive inhibition ELISA experiments, both polyclonal antibodies and MAbs exhibited strong cross-reactivity (> or = 100%) to other PbTx-2-type toxins (PbTx-2 and -9) but low or moderate cross-reactivity (6-15%) to a PbTx-1-type toxin (PbTx-1). Moreover, using these two MAbs, a low cross-reactivity with okadaic acid (3%) was noticed but no significant cross-reactivity was observed with two ciguatoxins (CTX-1B and CTX-3C) over the concentration range studied. The apparent dissociation constant (K(D)) for the interaction of these MAbs with free PbTx-2-type toxins was in the 10(-6)-10(-7)M range. The performance of this MAb-based assay (limit of detection approximately 5ng/well; working range=8-150ng/well) coupled with adequate extraction methods would provide an alternative assay to the mouse i.p. bioassay for routine shellfish monitoring. This production and characterisation of MAbs using small amount of polyether toxins in a reversed micellar medium appear most valuable for the development of immunoassays to other highly potent but poorly available marine polyether toxins like ciguatoxins (CTXs).
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
0041-0101
pubmed:author
pubmed:issnType
Print
pubmed:volume
39
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
869-78
pubmed:dateRevised
2011-11-17
pubmed:meshHeading
pubmed:year
2001
pubmed:articleTitle
Polyclonal and monoclonal antibodies to PbTx-2-type brevetoxins using minute amount of hapten-protein conjugates obtained in a reversed micellar medium.
pubmed:affiliation
Unité d'Océanographie Médicale, Institut de Recherches Médicales Louis Malardé, Papeete, Tahiti, French Polynesia.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't