PMID- 36985458 OWN - NLM STAT- MEDLINE DCOM- 20230330 LR - 20230331 IS - 1420-3049 (Electronic) IS - 1420-3049 (Linking) VI - 28 IP - 6 DP - 2023 Mar 8 TI - Synthesis and Biological Evaluation of 3-Amino-4,4-Dimethyl Lithocholic Acid Derivatives as Novel, Selective, and Cellularly Active Allosteric SHP1 Activators. LID - 10.3390/molecules28062488 [doi] LID - 2488 AB - Src homology 2 domain-containing protein tyrosine phosphatase 1 (SHP1), a non-receptor member of the protein tyrosine phosphatase (PTP) family, negatively regulates several signaling pathways that are responsible for pathological cell processes in cancers. In this study, we report a series of 3-amino-4,4-dimethyl lithocholic acid derivatives as SHP1 activators. The most potent compounds, 5az-ba, showed low micromolar activating effects (EC(50): 1.54-2.10 muM) for SHP1, with 7.63-8.79-fold maximum activation and significant selectivity over the closest homologue Src homology 2 domain-containing protein tyrosine phosphatase 2 (SHP2) (>32-fold). 5az-ba showed potent anti-tumor effects with IC(50) values of 1.65-5.51 muM against leukemia and lung cancer cells. A new allosteric mechanism of SHP1 activation, whereby small molecules bind to a central allosteric pocket and stabilize the active conformation of SHP1, was proposed. The activation mechanism was consistent with the structure-activity relationship (SAR) data. This study demonstrates that 3-amino-4,4-dimethyl lithocholic acid derivatives can be selective SHP1 activators with potent cellular efficacy. FAU - Chen, Huiqing AU - Chen H AD - Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, China. FAU - Liu, Zekun AU - Liu Z AD - Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, China. FAU - Gao, Lixin AU - Gao L AD - National Center for Drug Screening, Shanghai Institute of Material Medica, Chinese Academy of Sciences, Shanghai 201203, China. AD - School of Pharmaceutical Science, Jiangnan University, Wuxi 214122, China. FAU - Yu, Li-Fang AU - Yu LF AUID- ORCID: 0000-0002-3250-6773 AD - Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, China. FAU - Zhou, Yubo AU - Zhou Y AD - National Center for Drug Screening, Shanghai Institute of Material Medica, Chinese Academy of Sciences, Shanghai 201203, China. AD - Zhongshan Institute for Drug Discovery, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China. FAU - Tang, Jie AU - Tang J AD - Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, China. AD - Shanghai Greenchem & Biotech Co., Ltd., Shanghai 200062, China. FAU - Li, Jia AU - Li J AD - National Center for Drug Screening, Shanghai Institute of Material Medica, Chinese Academy of Sciences, Shanghai 201203, China. AD - Zhongshan Institute for Drug Discovery, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China. FAU - Yang, Fan AU - Yang F AUID- ORCID: 0000-0002-0411-7391 AD - Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, China. LA - eng GR - 115/National Development and Reform Commission/ PT - Journal Article DEP - 20230308 PL - Switzerland TA - Molecules JT - Molecules (Basel, Switzerland) JID - 100964009 RN - EC 3.1.3.48 (PTPN6 protein, human) RN - EC 3.1.3.48 (Protein Tyrosine Phosphatase, Non-Receptor Type 6) RN - EC 3.1.3.48 (Protein Tyrosine Phosphatases) SB - IM MH - Protein Tyrosine Phosphatase, Non-Receptor Type 6/metabolism MH - *Signal Transduction MH - *Protein Tyrosine Phosphatases/metabolism MH - Phosphorylation PMC - PMC10056611 OTO - NOTNLM OT - 3-amino-4,4-dimethyl lithocholic acid derivatives OT - SHP1 OT - anti-tumor OT - selective activators OT - structure-activity relationships COIS- The authors declare no conflict of interest. EDAT- 2023/03/30 06:00 MHDA- 2023/03/30 06:11 PMCR- 2023/03/08 CRDT- 2023/03/29 01:55 PHST- 2023/02/14 00:00 [received] PHST- 2023/03/02 00:00 [revised] PHST- 2023/03/06 00:00 [accepted] PHST- 2023/03/30 06:11 [medline] PHST- 2023/03/29 01:55 [entrez] PHST- 2023/03/30 06:00 [pubmed] PHST- 2023/03/08 00:00 [pmc-release] AID - molecules28062488 [pii] AID - molecules-28-02488 [pii] AID - 10.3390/molecules28062488 [doi] PST - epublish SO - Molecules. 2023 Mar 8;28(6):2488. doi: 10.3390/molecules28062488.