Discovery of a Novel Series of Inhibitors of Lymphoid Tyrosine Phosphatase with Activity in Human T Cells
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The lymphoid tyrosine phosphatase LYP, encoded by the PTPN22 gene, is a critical regulator of signaling in T cells and recently emerged as a candidate target for therapy of autoimmune diseases. Here, by library screening, we identified a series of noncompetitive inhibitors of LYP that showed activity in primary T cells. Kinetic analysis confirmed that binding of the compounds to the phosphatase is nonmutually exclusive with respect to a known bidentate competitive inhibitor. The mechanism of action of the lead inhibitor compound 4e was studied by a combination of hydrogen/deuterium-exchange mass spectrometry and molecular modeling. The results suggest that the inhibitor interacts critically with a hydrophobic patch located outside the active site of the phosphatase. Targeting of secondary allosteric sites is viewed as a promising yet unexplored approach to develop pharmacological inhibitors of protein tyrosine phosphatases. Our novel scaffold could be a starting point to attempt development of "nonactive site" anti-LYP pharmacological agents.
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RMC-4550 (IC50 = 0.583 nM) is a potent and selective SHP2 inhibitor that has shown efficacy against human cancer models with RAS-GTP-dependent oncogenic BRAF, NF1 deletion, or nucleotide cycle oncogenic RAS (e.g., KRASG12C).
“RMC-4550 (91) (IC50 = 0.583 nM) is a potent and selective SHP2 inhibitor that has shown efficacy against human cancer models with RAS-GTP-dependent oncogenic BRAF, NF1 deletion, or nucleotide cycle oncogenic RAS (e.g., KRASG12C).289”
From Recent advances in targeting the “undruggable” proteins: from drug discovery to clinical trials (2023) · cites this paper as [289]
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Additional file 1 of LYP regulates SLP76 and other adaptor proteins in T cells
Ruiz‐Martín, V., Marcos, T. K., de Pereda, J. M., Crespo, M. S., de la Fuente, M. A., Bayón, Y., & Alonso, A. (2024) · DIGITAL.CSIC (Spanish National Research Council (CSIC)) · doi:10.6084/m9.figshare.27129555
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Self-citation
- Authors
- Stanford, S. M., Krishnamurthy, D., Falk, M. D., Messina, R., Debnath, B., Li, S., Liu, T., Kazemi, R., Dahl, R., He, Y., Yu, X., Chan, A. C., Zhang, Z.-Y., Barrios, A. M., Woods, V. L., Neamati, N., & Bottini, N.
- Affiliations
- La Jolla Institute for Immunology (US)
- University of Utah (US)
- University of Southern California (US)
- University of California San Diego (US)
- Sanford Burnham Prebys Medical Discovery Institute (US)
- Indiana University Indianapolis (US)
- Genentech (US)
- Corresponding author
- Neamati, Nouri
- Bottini, Nunzio
- ORCID
- Venue
- Journal of Medicinal Chemistry
- Publisher
- American Chemical Society (ACS)
- Published
- 2011-02-22
- Volume
- 54
- Issue
- 6
- Pages
- 1640-1654
- ISSN
- 0022-2623 (ISSN-L)
- 1520-4804
- PMC
- PMC3086468
- OpenAlex
- W1979069875
- Cited by
- 59
- References
- 60
- Citations by year
- 2026: 3 · 2025: 2 · 2024: 5 · 2023: 3 · 2022: 1 · 2021: 2 · 2020: 1 · 2019: 1 · 2018: 3 · 2017: 6 · 2016: 5 · 2015: 6 · 2014: 5 · 2013: 9 · 2012: 5
- FWCI
- 2.86
- Type
- journal article
- Language
- en
- Open access
- green
- www.ncbi.nlm.nih.gov
- Locations
- Journal of Medicinal Chemistry (publishedVersion)
- PubMed (publishedVersion)
- Europe PMC (PubMed Central) (acceptedVersion)
- PubMed Central (acceptedVersion)
- IUScholarWorks (Indiana University) (submittedVersion)
- Funders
- U.S. Public Health Service (R21N-S056945)
- National Cancer Institute (CA099835, CA-69202, CA118595, R33CA099835, R21CA099835, R21CA118595, R01CA069202)
- National Institute of General Medical Sciences (R01GM020501, GM020501, F32GM020501, R01GM066170, GM066170)
- National Institute of Allergy and Infectious Diseases (AI 076961, R01AI081982, AI081982, R21AI076961, AI2008031)
- National Institute of Neurological Disorders and Stroke (R21NS056945)
- National Center for Research Resources (S10RR029388, RR029388)
- Topics
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Tyrosine Phosphatases
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Kinase Regulation and GTPase Signaling
- Physical Sciences › Chemistry › Organic Chemistry › Organophosphorus compounds synthesis
- Keywords
- lymphomatoid papulosis, PTPN22, non-competitive inhibitors, T cells, allosteric inhibition, hydrophobic patch, protein tyrosine phosphatase inhibitors, autoimmune disease, hydrogen-deuterium exchange mass spectrometry, molecular modeling, library screening
- MeSH terms
- Allosteric Site, Animals, Cell Membrane Permeability, Cells, Cultured, Humans, Kinetics, Lymphocyte Activation, Mice, Inbred C57BL, Models, Molecular, Mutation, Protein Conformation, Mass Spectrometry, Stereoisomerism, Structure-Activity Relationship, T-Lymphocytes, Tetrazoles, Quinolones, Mice, Knockout, Catalytic Domain, Deuterium Exchange Measurement, Mice, Protein Tyrosine Phosphatase, Non-Receptor Type 22, Small Molecule Libraries, Hydrophobic and Hydrophilic Interactions
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