Linked Life Data

20674353

Source:http://linkedlifedata.com/resource/pubmed/id/20674353

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
17
pubmed:dateCreated
2010-8-16
pubmed:abstractText
The resistance to methotrexate by a number of cancer cells such as breast cancer cell-line MDA-MB-231 due to poor permeability renders it less effective as an anticancer agent for these cells. Proline prodrug of methotrexate (Pro-MTX) was designed as a substrate of prolidase which is specific for imido bond of dipeptide containing proline and expected to penetrate MDA-MB-231 cells more efficiently. The prodrug was synthesized by solid-phase peptide synthesis method and examined as a substrate of pure prolidase as well as cell homogenate. The cytotoxicity against MDA-MB-231 and non-methotrexate resistant breast cancer cell line, MCF-7 was also examined by XTT assay. The results showed that Pro-MTX was a substrate of prolidase. It was also shown that the prodrug could be converted to parent drug methotrexate in Caco-2 and HeLa cell homogenate. When tested with Caco-2 and MCF-7 cells, Pro-MTX showed weaker cytotoxicity compared with methotrexate. But for methotrexate resistant MDA-MB-231 cells, Pro-MTX showed stronger activity than methotrexate. The results indicated that the proline prodrug of methotrexate may overcome the resistance of human breast cancer cells in culture.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
1464-3405
pubmed:author
pubmed:copyrightInfo
Copyright 2010 Elsevier Ltd. All rights reserved.
pubmed:issnType
Electronic
pubmed:day
1
pubmed:volume
20
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
5108-12
pubmed:meshHeading
pubmed:year
2010
pubmed:articleTitle
Development of methotrexate proline prodrug to overcome resistance by MDA-MB-231 cells.
pubmed:affiliation
Division of Pharmaceutical Sciences, Arnold & Marie Schwartz College of Pharmacy and Health Sciences, Long Island University, Brooklyn, NY 11201, USA. james.wu@liu.edu
pubmed:publicationType
Journal Article