Preclinical antitumor efficacy evaluation of dendrimer-based methotrexate conjugates.

Abstract:

:Our previous studies have demonstrated the in-vitro and in-vivo targeting of a generation-5 (G5) dendrimer-based multifunctional conjugate, which used folic acid (FA) as the targeting agent and methotrexate (MTX) as the chemotherapeutic drug. For the synthesized G5-FA-MTX nanodevice conjugate to be clinically applicable as a cancer therapeutic drug, it is important that the compound elicits cytotoxicity specifically and consistently. The aim of this work was to evaluate four independently synthesized batches of G5-FA-MTX conjugates for their cytotoxic potential and specificity. For determination of specificity, we have used a unique 'coculture' assay in which FA receptor-positive and FA receptor-negative cells were cultured together and have examined the preferential killing of the former. The results of our study show the batch-to-batch consistency and specificity of the G5-FA-MTX nanodevice in the preferential killing of FA receptor-positive cells. The coculture assay shows the consistency of the four different G5-FA-MTX conjugate lots in the specific killing of targeted cells. Further in-vivo studies are, however, necessary to prove the clinical potential of this targeted therapeutic nanodevice.

journal_name

Anticancer Drugs

journal_title

Anti-cancer drugs

authors

Myc A,Douce TB,Ahuja N,Kotlyar A,Kukowska-Latallo J,Thomas TP,Baker JR Jr

doi

10.1097/CAD.0b013e3282f28842

subject

Has Abstract

pub_date

2008-02-01 00:00:00

pages

143-9

issue

2

eissn

0959-4973

issn

1473-5741

pii

00001813-200802000-00005

journal_volume

19

pub_type

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