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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
1994-3-15
pubmed:abstractText
This study presents a carrier system for boron, potentially useful in boron neutron capture therapy (BNCT). Na2B12H11SH (BSH) was covalently coupled to dextran derivatives. This was accomplished in two ways. The first method comprises activation of dextran with 1-cyano-4-(dimethylamino)pyridine (CDAP) with subsequent coupling of 2-aminoethyl pyridyl disulfide (method A). The thiolated dextran could then couple BSH in a disulfide exchange reaction. In the second procedure, dextran was derivatized to a multially derivative (method B) which reacted with BSH in a free-radical-initiated addition reaction. The assessment of boron content of the conjugates was done by elemental analysis of sulfur and atomic spectroscopy of boron (ICP-AES). With method A, only limited numbers of boron cages could be coupled (10-20 cages per dextran chain). With method B, 100-125 boron cages per dextran chain was obtained, corresponding to 1200-1500 boron atoms per dextran chain. This result makes this derivative a promising template for use in the development of BNCT agents.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
1043-1802
pubmed:author
pubmed:issnType
Print
pubmed:volume
4
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
570-3
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:articleTitle
Preparation of sulfhydrylborane-dextran conjugates for boron neutron capture therapy.
pubmed:affiliation
Kabi Pharmacia Diagnostics AB, Uppsala, Sweden.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't