BPDA2 is a selective and potent SHP2 inhibitor with IC50 values of 92.0 nM, 33.39 μM, and 40.71 μM for SHP2, SHP1, and SHP1B, respectively.DBDA2 possesses anticancer and antitumor activity and inhibits anchorage-independent growth of breast cancer cells and cancer stem cell properties in a concentration-dependent manner.BPDA2 can be used to study of breast cancer.

SPI--112Me, a prodrug of SPI-112, preferentially inhibits the PTPase activity of Shp2 over Shp1 and PTP1B by more than 20-fold in cell-free assays.

2-Bromo-4'-hydroxyacetophenone(PTP Inhibitor I) is a cell-permeable, protein tyrosine phosphatase (PTP) inhibitor that covalently blocks the catalytic domain of the Src homology region 2 domain-containing phosphatase (SHP-1(ΔSH2)) with a Ki value of 43 μM and PTP1B with a Ki value of 42 μM [1]. SHP-1 and PTP1B both have known roles in regulating insulin signaling as well as myeloid and lymphoid cell differentiation, making inhibitors of these phosphatases of interest in diabetes, cancer, allergy, and inflammation research [2].

PTP inhibitor 1 is an inhibitor of cell-permeable protein tyrosine phosphatase (PTP) that covalently binds the catalytic domain of the Src homology region 2 domain-containing phosphatase (SHP-1(ΔSH2)),with Ki of128 μM.

PHPS1 is an inhibitor of Shp2. PHPS1 efficiently inhibits activation of Erk1/2 by the leukemia-associated Shp2 mutant, Shp2-E76K, and blocks the anchorage-independent growth of a variety of human tumor cell lines.

PHPS1 sodium is a potent and selective inhibitor of Shp2, with Kis of 0.73, 5.8, 10.7, 5.8, and 0.47 μM for Shp2, Shp2-R362K, Shp1, PTP1B, and PTP1B-Q, respectively [1].

LYP-IN-1 is a powerful LYP inhibitor that demonstrates high potency, selectivity, and specificity, with a Ki of 110 nM and an IC 50 of 0.259 μM. Beyond its primary target, LYP-IN-1 also exhibits selectivity towards a wide range of PTPs, including SHP1 (IC 50 = 5 μM) and SHP2 (IC 50 = 2.5 μM). Additionally, LYP-IN-1 demonstrates remarkable efficacy in T- and mast cells, making it a valuable tool for investigating autoimmune disorders.

Darinaparsin is a dimethylated arsenic linked to glutathione. It is cytotoxic to DU145, LNCaP, and PC3 prostate cancer cells (IC50s = 5-10 µM) and patient-derived primary prostate cancer cells (IC50s = 2.5-20 µM), as well as Jurkat T cell lymphoma and L540 Hodgkin lymphoma cells (IC50s = 2.7 and 1.3 µM, respectively). [1][2] It decreases the tumor-initiating subpopulation in DU145 and PC3 cells and halts the cell cycle in the G2/M phase. Darinaparsin decreases transcription of Gli-2, a transcription factor that mediates Sonic hedgehog signaling, when used at a concentration of 1.5 but not 3 µM. It decreases SHP1 phosphatase activity and increases ERK phosphorylation. [2] Darinaparsin reduces tumor growth in DU145 and PC3 prostate cancer mouse xenograft models when administered at a dose of 100 mg/kg every other day.[1]

SHP2-IN-9 is a potent inhibitor (IC50 = 1.174 μM) specifically targeting the SHP2 protein, displaying improved penetration across the blood-brain barrier. It exhibits a remarkable 85-fold selectivity for SHP2 over SHP1. By inhibiting SHP2-mediated cell signal transduction and impairing cancer cell proliferation, SHP2-IN-9 effectively suppresses the growth of both cervix cancer tumors and glioblastoma in vivo [1].

NSC-87877 disodium (NSC87877) is a cell-permeable inhibitor of both SHP-1 and SHP-2 with IC50 values of 355 and 318 nM respectively. It also inhibits EGF-induced Erk1/2 activation in HEK293 cells and significantly reduces MDA-MB-468 cell viability/proliferation.

Cryptosporioptide A (Compound 3), a protein tyrosine phosphatase inhibitor, originates from the insect-parasitic fungus Cordyceps gracilioides. This compound effectively inhibits several enzymes including PTP1B, SHP2, CDC25B, LAR, and SHP1 with respective IC50 values of 7.3, 5.7, 7.6, >50, and 4.9 μg/mL [1].

TPI-1 is a SHP-1 inhibitor.

GS-493, a highly specific protein tyrosine phosphatase SHP2 (PTPN11) inhibitor, exhibits remarkable potency with an IC50 of 71 nM. It displays 29- and 45-fold greater affinity towards SHP2 compared to its related counterparts, SHP1 and PTP1B, respectively. In addition, GS-493 impedes both cellular motility and growth of cancer cells, portraying promising antitumor effects.

NSC-87877 is an effective inhibitor of Shp2 and Shp1 protein tyrosine phosphatases (IC50=0.318 μM, 0.355 μM of shp2 and shp1, respectively).It also inhibits dual-specificity phosphatase 26 (DUSP26).