PTP1B inhibitor

PTP1B-IN-1 (PTP1B inhibitor) is a potent inhibitor of protein tyrosine phosphatase 1B (PTP1B) (IC50 : 1.6 mM)

Osunprotafib (ABBV-CLS-484) is a potent, orally bioavailable PTP1B PTPN2 inhibitor in clinical trials for solid tumors. [1] Osunprotafib (ABBV-CLS-484) stimulates the tumor microenvironment and promotes natural killer cell and CD8 T cell function and enhances T cell anti-tumor immunity by enhancing JAK-STAT signaling and reducing T cell dysfunction. [2]

Infliximab is a monoclonal antibody, a human-mouse chimeric monoclonal antibody that inhibits TNF-α and prevents TNF-α from interacting with TNFR1 and TNFR2. Infliximab can be used to treat Crohn's disease and rheumatoid arthritis.

Ertiprotafib (PTP 112), a selective and potent inhibitor of protein tyrosine phosphate 1B (PTP1B) and IkappaB kinase β (IKK-β), is a novel insulin sensitizer with potential anticancer activity for the study of type 2 diabetes and breast cancer.

Pentamidine dihydrochloride (MP-601205 dihydrochloride) is an aromatic diamidine agent effective against various microorganisms, including protozoa (Trypanosoma brucei, Leishmania spp., and Babesia spp.) and fungi (Pneumocystis jirovecii). It is a potent and selective inhibitor of protein tyrosine phosphatases and phosphatase of regenerating liver. Pentamidine dihydrochloride inhibits the parasite Leishmania infantum with an IC50 of 2.5 μM.

PTP1B-IN-3 is a selective and potent PTP1B inhibitor with anticancer activity that inhibits PTP1B and TCPTP.PTP1B-IN-3 is used in the study of diabetes.

PTP1B-IN-22 is a protein tyrosine phosphatase 1B (PTP1B) inhibitor that inhibits glucose uptake in skeletal muscle L6 myotubes.

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].

Bis(maltolato)oxovanadium(IV) (BMOV) is a potent, reversible, competitive, and orally active pan-PTP (protein tyrosine phosphatases) inhibitor with insulin-mimicking effects and anti-diabetic properties. BMOV is a potent insulin sensitizer and has been shown to improve cardiac dysfunctions in diabetic models. BMOV inhibits HCPTPA, PTP1B, HPTPβ, and SHP2 with IC50s of 126 nM, 109 nM, 26 nM, and 201 nM, respectively [1][2].

Sodium stibogluconate (Stibogluconate trisodium nonahydrate) is a potent inhibitor of protein tyrosine phosphatase.

SPI-112, the SPI-112 methyl ester analog, can inhibit cellular Shp2 PTP activity. SPI-112 bound to Shp2 by surface plasmon resonance (SPR) and displayed competitive inhibitor kinetics to Shp2.

PTP1B-IN-2 is an effective protein tyrosine phosphatase 1B (PTP1B) inhibitor(IC50=50 nM).

1. Kuwanon G (Moracenin B) as dual inhibitors of PTP1B and α-glucosidase enzymes, as well as insulin sensitizers, it may potentially be utilized as an effective treatment for Type II diabetes mellitus. 2. Kuwanon G has anti-inflammatory activity, it can attenuate atherosclerosis through inhibiting foam cell formation and inflammatory response. 3. Kuwanon G is a potent inhibitor of Mycobacterium tuberculosis protein tyrosine phosphatase B. 4. Kuwanon G shows acetylcholinesterase (AChE) and butyrylcholinesterase(BChE) inhibitory activities, it may be a promising candidate for preventive and therapeutic agents for Alzheimer's disease. 5. Kuwanon G prevents the pathological progression of allergic asthma through the inhibition of lung destruction by inflammation and immune stimulation. 6. Kuwanon G has antibacterial activity against oral pathogens. 7. Kuwanon G is a specific antagonist for the GRP-preferring receptor and can be useful for studying the physiological and pathological role of GRP.

Vicenin 2 is an angiotensin-converting enzyme (ACE) inhibitor (IC50=43.83 μM) from the aerial parts of Desmodium styracifolium. Vicenin 2 is an inhibitor of α-glucosidase, PTP1B, and RLAR. Vicenin 2 has hepatoprotective, anti-cancer, antioxidant and anti-inflammatory activities, and DTL co-administration is more effective than either of the single agents in androgen-independent prostate cancer. Vicenin 2 might be a useful lead for the development of multiple target-oriented therapeutic modalities for the treatment of diabetes and diabetes-associated complications. Vicenin 2 could act as a UV light barrier to protect the plants.

PTP1B-IN-8 is a potent and selective inhibitor of protein tyrosine phosphatase-1B (PTP1B).

PTP Inhibitor IV is an effective protein tyrosine phosphatase (PTP) inhibitor, which can selectively inhibit DUSP14 phosphatase activity (IC50.5.21μm). PTP Inhibitor IV inhibited SHP-2, PTP1B, PTp-ε, PTP Meg-2, PTP-σ, PTP-β and PTP-μ, IC50 were 1.8 μM, 2.5 μM, 8.4 μM, 13 μM, 20 μM, 6.4 μM, and 6.7 μM, respectively. PTP Inhibitor IV affects cellular signaling by inhibiting PTP activity and may regulate specific pathways associated with PTP-mediated signaling events.

RA371 (EX-A4742) is a derivative of PTP1B-IN-8, an inhibitor of PTP1B.

MSI-1436 lactate is a selective, non-competitive inhibitor of the enzyme protein-tyrosine phosphatase 1B (PTP1B) with an IC50 of approximately 1 μM.

Licoflavone A is a natural product isolated from the roots of Glycyrrhiza uralensis.

DPM-1001 is an orally bioavailable and non-competitive protein-tyrosine phosphatase (PTP1B) inhibitor (IC50: 100 nM) with the anti-diabetic property.

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].

Lupenone is a natural product isolated from Rhizoma Musae and has good anti-diabetic activity,and has anti-inflammatory activity.lupenone were potent PTP1B inhibitors with IC50 values of 15.11±1.23μM.

Rubrofusarin 6-O-β-D-glucopyranoside, a glycosidic derivative of Rubrofusarin, functions as an inhibitor of protein tyrosine phosphatase 1B (PTP1B) with an IC50 value of 87.36 μM, and is utilized in research investigating comorbid diabetes and depression [1].

PTP1B-IN-3 diammonium is a highly effective and orally bioavailable inhibitor of the protein tyrosine phosphatase 1B (PTP1B) enzyme, with an IC50 value of 120 nM for both PTP1B and TCPTP, exhibiting potent antidiabetic and anticancer properties, as supported by extensive research [1] [2].