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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
2000-4-11
pubmed:abstractText
Ceramide is a well-known regulator of apoptosis and cell growth. In this study, we synthesized lipophilic ceramide derivatives to incorporate into lipid microspheres (LM) and their activity was evaluated in vivo. Cera 03, a lipophilic ceramide derivative synthesized from membrane-permeable C2-ceramide, caused potent growth inhibition and DNA fragmentation of Meth A-T tumor cells in vitro. Its potency was similar to that of C2-ceramide. Both compounds increased the proportion of apoptotic cells. Cera 02, the diacetylated form of natural ceramide (Cer), also suppressed in vitro cell growth with a similar or higher potency to that of Cer, but both were far less potent than C2-ceramide and Cera 03. LM containing Cera 03 (Lipo-Cera 03) could not totally prevent metastatic incidence of Meth A-T cells, but reduced pulmonary metastatic nodules in number. Intravenous injection of Lipo-Cera 03 (1 mg/kg of Cera 03) produced about 35% inhibition, while Lipo-Cera 02 had no significant effect. In conclusion, Lipo-Cera 03 may have potential as an antimetastatic drug and may also be a useful tool for researching the role of ceramides in vivo.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
1061-186X
pubmed:author
pubmed:issnType
Print
pubmed:volume
7
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
187-95
pubmed:dateRevised
2003-11-14
pubmed:meshHeading
pubmed:year
1999
pubmed:articleTitle
Lipid microsphere preparation of a lipophilic ceramide derivative suppresses colony formation in a murine experimental pulmonary metastasis model.
pubmed:affiliation
Institute of Medical Science, St. Marianna University School of Medicine, Kawasaki, Japan. m2take@marianna-u.ac.jp
pubmed:publicationType
Journal Article