My NCBISign In

Display Settings:

Format

Send to:

Choose Destination
    J Med Chem. 2008 Jun 12;51(11):3230-7. Epub 2008 May 16.

    Carbonic anhydrase inhibitors: bioreductive nitro-containing sulfonamides with selectivity for targeting the tumor associated isoforms IX and XII.

    D'Ambrosio K, Vitale RM, Dogné JM, Masereel B, Innocenti A, Scozzafava A, De Simone G, Supuran CT.

    Source

    Istituto di Biostrutture e Bioimmagini-CNR, Napoli, Italy.

    Abstract

    2-Substituted-5-nitro-benzenesulfonamides incorporating a large variety of secondary/tertiary amines were explored as inhibitors of the zinc enzyme carbonic anhydrase (CA, EC 4.2.1.1), with the aim of designing bioreductive inhibitors targeting the hypoxia overexpressed, tumor-associated isozymes. The compounds were ineffective inhibitors of the cytosolic isoform I, showed a better inhibition of the physiologically relevant CA II (KIs of 8.8-4975 nM), and strongly inhibited the tumor-associated CA IX and XII (KIs of 5.4-653 nM). Some of these compounds showed excellent selectivity ratios for the inhibition of the tumor-associated isozymes over the cytosolic ones (in the range of 10-1395). The X-ray crystal structure of the adduct of hCA II with the lead molecule 2-chloro-5-nitro-benzenesulfonamide as well as molecular modeling studies for interaction with hCA IX afforded a better understanding of factors governing the discrimination of the two isoforms for this type of bioreductive compound targeting specifically hypoxic tumors.

    PMID:
    18481843
    [PubMed - indexed for MEDLINE]

    Publication Types, MeSH Terms, Substances

    Publication Types

    MeSH Terms

    Substances

    LinkOut - more resources

    Full Text Sources

    Other Literature Sources

    Medical

      Supplemental Content

      Icon for American Chemical Society

      Save items

      loading

      Related citations in PubMed

      See reviews... See all...

      Structures reported by this article

      Related information

      • Related Citations
        Calculated set of PubMed citations closely related to the selected article(s) retrieved using a word weight algorithm. Related articles are displayed in ranked order from most to least relevant, with the “linked from” citation displayed first.
      • BioAssay
        PubChem BioAssay experiments on the biological activities of small molecules that cite the current articles. The depositors of BioAssay data provide these references.
      • Substance (MeSH Keyword)
        PubChem chemical substance (submitted) records that are classified under the same Medical Subject Headings (MeSH) controlled vocabulary as the current articles.
      • Taxonomy via GenBank
        Taxonomy records associated with the current articles through taxonomic information on related molecular database records (Nucleotide, Protein, Gene, SNP, Structure).
      • Protein
        Protein translation features of primary database (GenBank) nucleotide records reported in the current articles as well as Reference Sequences (RefSeqs) that include the articles as references.
      • Structure
        Three-dimensional structure records in the NCBI Structure database for data reported in the current articles.

      Recent activity

      Clear Turn Off Turn On

      Your browsing activity is empty.

      Activity recording is turned off.

      Turn recording back on

      See more...
      You are here: NCBI > Literature > PubMed
      Write to the Help Desk