Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2007-12-24
pubmed:abstractText
This report details the establishment of a transgenic goat model in order to produce human lactoferrin (hLf) in the mammary gland for large-scale application and research. Two transgenic male goats were generated by microinjecting sequence encoding hLf cDNA to the pronuclear. In the two lines, derived from the two founders, eight lactating female goats could secrete recombinant human lactoferrin (rhLf) at concentrations of up to 0.765 mg/ml. The method of purifying the rhLf from the milk was achieved using ion-exchange chromatography and resulted in 97% purity. Biochemical and physicochemical characteristics of rhLf were similar to native lactoferrin (nhLf); this included N-terminal sequence, isoelectric point, molecular mass, glycosylation, iron-binding/releasing ability, thermal stability, and proteolysis. The rhLf showed broad spectrum antibacterial activity inhibiting the growth of several pathogenic bacterial strains. Also investigated, although to a lesser degree, was a practicable pasteurization method for the downstream processing of rhLf and, further, a method for the oral administration of rhLf. On the basis of these results, our studies show an optimistic and promising approach for the large-scale production and therapeutic application of rhLf expressed in transgenic goats.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
1046-5928
pubmed:author
pubmed:issnType
Print
pubmed:volume
57
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
127-35
pubmed:dateRevised
2011-11-17
pubmed:meshHeading
pubmed:year
2008
pubmed:articleTitle
Expression of active recombinant human lactoferrin in the milk of transgenic goats.
pubmed:affiliation
Rui Jin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't