8skl

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Current revision (06:28, 4 December 2024) (edit) (undo)
 
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<table><tr><td colspan='2'>[[8skl]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=8SKL OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=8SKL FirstGlance]. <br>
<table><tr><td colspan='2'>[[8skl]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=8SKL OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=8SKL FirstGlance]. <br>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.55&#8491;</td></tr>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.55&#8491;</td></tr>
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<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CL:CHLORIDE+ION'>CL</scene>, <scene name='pdbligand=EDO:1,2-ETHANEDIOL'>EDO</scene>, <scene name='pdbligand=NA:SODIUM+ION'>NA</scene>, <scene name='pdbligand=V2O:5-[1-fluoro-3-hydroxy-7-(3-hydroxy-3-methylbutoxy)naphthalen-2-yl]-1lambda~6~,2,5-thiadiazolidine-1,1,3-trione'>V2O</scene></td></tr>
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<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CL:CHLORIDE+ION'>CL</scene>, <scene name='pdbligand=EDO:1,2-ETHANEDIOL'>EDO</scene>, <scene name='pdbligand=NA:SODIUM+ION'>NA</scene>, <scene name='pdbligand=V2O:5-[1-fluoranyl-7-(3-methyl-3-oxidanyl-butoxy)-3-oxidanyl-naphthalen-2-yl]-1,1-bis(oxidanylidene)-1,2,5-thiadiazolidin-3-one'>V2O</scene></td></tr>
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=8skl FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=8skl OCA], [https://pdbe.org/8skl PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=8skl RCSB], [https://www.ebi.ac.uk/pdbsum/8skl PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=8skl ProSAT]</span></td></tr>
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=8skl FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=8skl OCA], [https://pdbe.org/8skl PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=8skl RCSB], [https://www.ebi.ac.uk/pdbsum/8skl PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=8skl ProSAT]</span></td></tr>
</table>
</table>
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<div style="background-color:#fffaf0;">
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
== Publication Abstract from PubMed ==
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The inhibition of protein tyrosine phosphatases (PTPs), such as PTP1B and PTPN2 that function as intracellular checkpoints, has emerged as an exciting new approach for bolstering T cell anti-tumor immunity to combat cancer. ABBV-CLS-484 is a dual PTP1B and PTPN2 inhibitor currently in clinical trials for solid tumors. Here we have explored the therapeutic potential of targeting PTP1B and PTPN2 with a related small molecule inhibitor, Compound 182. We demonstrate that Compound 182 is a highly potent and selective active site competitive inhibitor of PTP1B and PTPN2 that enhances antigen-induced T cell activation and expansion ex vivo and represses the growth of syngeneic tumors in C57BL/6 mice without promoting overt immune-related toxicities. Compound 182 repressed the growth of immunogenic MC38 colorectal and AT3-OVA mammary tumors as well as immunologically cold AT3 mammary tumors that are largely devoid of T cells. Treatment with Compound 182 increased both the infiltration and activation of T cells, as well as the recruitment of NK cells and B cells that promote anti-tumor immunity. The enhanced anti-tumor immunity in immunogenic AT3-OVA tumors could be ascribed largely to the inhibition of PTP1B/PTPN2 in T cells, whereas in cold AT3 tumors, Compound 182 elicited both direct effects on tumor cells and T cells to facilitate T cell recruitment and thereon activation. Importantly, treatment with Compound 182 rendered otherwise resistant AT3 tumors sensitive to anti-PD1 therapy. Our findings establish the potential for small molecule active site inhibitors of PTP1B and PTPN2 to enhance anti-tumor immunity and combat cancer.
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The inhibition of protein tyrosine phosphatases 1B (PTP1B) and N2 (PTPN2) has emerged as an exciting approach for bolstering T cell anti-tumor immunity. ABBV-CLS-484 is a PTP1B/PTPN2 inhibitor in clinical trials for solid tumors. Here we have explored the therapeutic potential of a related small-molecule-inhibitor, Compound-182. We demonstrate that Compound-182 is a highly potent and selective active site competitive inhibitor of PTP1B and PTPN2 that enhances T cell recruitment and activation and represses the growth of tumors in mice, without promoting overt immune-related toxicities. The enhanced anti-tumor immunity in immunogenic tumors can be ascribed to the inhibition of PTP1B/PTPN2 in T cells, whereas in cold tumors, Compound-182 elicited direct effects on both tumor cells and T cells. Importantly, treatment with Compound-182 rendered otherwise resistant tumors sensitive to alpha-PD-1 therapy. Our findings establish the potential for small molecule inhibitors of PTP1B and PTPN2 to enhance anti-tumor immunity and combat cancer.
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A small molecule inhibitor of PTP1B and PTPN2 enhances T cell anti-tumor immunity.,Liang S, Tran E, Du X, Dong J, Sudholz H, Chen H, Qu Z, Huntington N, Babon J, Kershaw N, Zhang ZY, Baell J, Wiede F, Tiganis T bioRxiv. 2023 Jun 28:2023.06.16.545220. doi: 10.1101/2023.06.16.545220. Preprint. PMID:37397992<ref>PMID:37397992</ref>
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A small molecule inhibitor of PTP1B and PTPN2 enhances T cell anti-tumor immunity.,Liang S, Tran E, Du X, Dong J, Sudholz H, Chen H, Qu Z, Huntington ND, Babon JJ, Kershaw NJ, Zhang ZY, Baell JB, Wiede F, Tiganis T Nat Commun. 2023 Jul 27;14(1):4524. doi: 10.1038/s41467-023-40170-8. PMID:37500611<ref>PMID:37500611</ref>
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
</div>
<div class="pdbe-citations 8skl" style="background-color:#fffaf0;"></div>
<div class="pdbe-citations 8skl" style="background-color:#fffaf0;"></div>
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==See Also==
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*[[Tyrosine phosphatase 3D structures|Tyrosine phosphatase 3D structures]]
== References ==
== References ==
<references/>
<references/>
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[[Category: Babon JJ]]
[[Category: Babon JJ]]
[[Category: Chen H]]
[[Category: Chen H]]
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[[Category: Kershaw NJ]]
[[Category: Tiganis T]]
[[Category: Tiganis T]]

Current revision

PTP1B in complex with 182

PDB ID 8skl

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