@article{1b73cbfb252d4ef899d2b5ef917a943b,
title = "Picomolar fluorescent probes for compound affinity determination to carbonic anhydrase IX expressed in live cancer cells",
abstract = "Numerous human cancers, especially hypoxic solid tumors, express carbonic anhydrase IX (CAIX), a transmembrane protein with its catalytic domain located in the extracellular space. CAIX acidifies the tumor microenvironment, promotes metastases and invasiveness, and is therefore considered a promising anticancer target. We have designed a series of high affinity and high selectivity fluorescein-labeled compounds targeting CAIX to visualize and quantify CAIX expression in cancer cells. The competitive binding model enabled the determination of common CA inhibitors' dissociation constants for CAIX expressed in exponentially growing cancer cells. All tested sulfonamide compounds bound the proliferating cells with similar affinity as to recombinantly purified CAIX. The probes are applicable for the design of selective drug-like compounds for CAIX and the competition strategy could be applied to other drug targets.",
keywords = "FLUORINATED BENZENESULFONAMIDES, INTRINSIC THERMODYNAMICS, SELECTIVE INHIBITORS, LIGAND-BINDING, X-RAY, SULFONAMIDE, PROTEIN, MARKER, ASSAY, XII",
author = "J. Matuliene and G. Zvinys and V. Petrauskas and A. Kvietkauskaite and A. Zaksauskas and K. Shubin and A. Zubriene and L. Baranauskiene and L. Kacenauskaite and S. Kopanchuk and S. Veiksina and V. Paketuryte-Latve and J. Smirnoviene and V. Juozapaitiene and A. Mickeviciute and V. Michailoviene and J. Jachno and D. Stravinskiene and A. Sliziene and A. Petrosiute and H.M. Becker and J. Kazokaite-Adomaitiene and A. Yaromina and E. Capkauskaite and A. Rinken and V. Dudutiene and L.J. Dubois and D. Matulis",
note = "Funding Information: This work was supported by the grant S-SEN-20-10 to JM from the Research Council of Lithuania and Estonian Research Council grant PSG230. HMB thanks Antje Beyer for technical assistance. AP thanks Asta Lu{\v c}iūnaitė and Virginija Bukelskienė for assistance. Funding Information: This work was supported by the grant S-SEN-20-10 to JM from the Research Council of Lithuania and Estonian Research Council grant PSG230. HMB thanks Antje Beyer for technical assistance. AP thanks Asta Lu{\v c}iūnaitė and Virginija Bukelskienė for assistance. Publisher Copyright: {\textcopyright} 2022, The Author(s).",
year = "2022",
month = oct,
day = "21",
doi = "10.1038/s41598-022-22436-1",
language = "English",
volume = "12",
journal = "Scientific Reports",
issn = "2045-2322",
publisher = "Nature Publishing Group",
number = "1",
}