ArticleInternational journal of nanomedicine2022
Self-Assembled Micellar Glutaminase Allosteric Inhibitor for Effective Therapeutic Intervention.
Article in International journal of nanomedicine, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
1 citing paper in PubMed, 5 citations in OpenAlex.
- SoluplusInternational journal of molecular sciences · 2025Review
Corrections and comments
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Authors and funding
6 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
introductionKidney-type glutaminase (KGA) has been an important anti-tumor drug target, and KGA allosteric inhibitors attracted much interest for their superior enzymatic specificity with good drug safety profiles. For glutaminase allosteric inhibitors such as BPTES, CB-839 and Selen derivatives, the low solubility remains as the main factor that limits in vivo efficacy. The 1,3,4-Selenadiazole compound CPD 23 showed improved in vivo efficacy but worse solubility; however, the graft polymer polyvinyl caprolactam-polyvinyl acetate-polyethylene glycol (PVCap-PVA-PEG), Soluplus
methodsThe CPD 23@SOL micelles were prepared, optimized and evaluated through on the basis of solubility improvement and loading capacity. Characterizations of particle size and Zeta potential by dynamic light scattering, morphology by transmission electron microscopy and solid state by X-ray powder diffraction were closely conducted. The biological studies included the tumor cell growth inhibition, blood and liver microsomal stability, in vivo pharmacokinetics and tissue biodistribution.
resultsAt 1:20 ratio of CPD 23:SOL, CPD 23@SOL micelles were well-dispersed, spherical and stable, with size less than 200 nm with encapsulation efficiency of more than 90%. This SOL micellar system significantly increased the aqueous solubility of CPD 23 by 15,000 folds. Particularly, CPD 23@SOL micelles demonstrated higher stability in blood and liver microsomes, showing approximately 86% remaining at 2 h incubation and about 66% at 4 h, respectively. In addition, with or without micellar formulation, CPD 23 maintained essentially the same inhibitory activity in tumor cells. Interestingly, CPD 23@SOL micelles significantly improved the pharmacokinetic exposure, prolonged the in vivo circulation and dramatically changed tissue biodistributions of CPD 23.
conclusionThe current work provided an encouraging and practical delivery system for novel Selenadiazoles and glutaminase allosteric inhibitors whose poor water-soluble characteristic has been a bottleneck for the field.
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