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Solubilizer Tag Effect on PD-L1/Inhibitor Binding Properties for m-Terphenyl Derivatives
Surmiak, Ewa ; Zaber, Julia ; Plewka, Jacek , et al. ACS Med. Chem. Lett.,2024,15(1):36-44. DOI: 10.1021/acsmedchemlett.3c00306 PubMed ID: 38229762
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Abstract: Although heavily studied, the subject of anti-PD-L1 small-mol. inhibitors is still elusive. Here, we present a systematic overview of the principles behind the successful anti-PD-L1 small mol. inhibitor design on the example of the m-terphenyl scaffold with a particular focus on the neglected influence of the solubilizer tag on the overall affinity toward PD-L1. The inhibitor developed according to the proposed guidelines was characterized through its potency in blocking the PD-1/PD-L1 complex formation in HTRF and cell-based assays. The affinity is also explained based on the crystal structure of the inhibitor itself, its costructure with PD-L1 as well as mol. modeling study. Our results structuralize the knowledge related to the strong pharmacophore feature of the m-terphenyl scaffold preferential geometry and the more complex role of the solubilizer tag in PD-L1 homodimer stabilization.
Keywords: PD-L1 ; Immune checkpoint ; Small-molecule inhibitor ; Cancer ; m-Terphenyl
Purchased from AmBeed: 147636-76-8 ; 534-03-2
CAS No. : | 147636-76-8 | MDL No. : | MFCD06655993 |
Formula : | C8H16ClNO2 | Boiling Point : | No data available |
Linear Structure Formula : | - | InChI Key : | SNZAKTXWTXRXNI-UHFFFAOYSA-N |
M.W : | 193.67 | Pubchem ID : | 18521570 |
Synonyms : |
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Signal Word: | Warning | Class: | |
Precautionary Statements: | P261-P280-P305+P351+P338 | UN#: | |
Hazard Statements: | H302-H315-H319-H332-H335 | Packing Group: | |
GHS Pictogram: |
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