PI3Kα Inhibitor

PI3Kα-IN-31 is an orally active and selective PI3Kα inhibitor. PI3Kα-IN-31 shows potent preference for mutant PI3Kα over wild-type PI3Kα. PI3Kα-IN-31 exerts antiproliferative effects in PI3Kα-mutant cancer cells. PI3Kα-IN-31 suppresses tumor growth in xenograft models. PI3Kα-IN-31 can be used for the research of breast cancer.

Pabgraminone C (IM502) is a Fungal metabolite and PI3Kγ inhibitor with an IC₅₀ of 61.7 nM against PI3Kγ. Pabgraminone C shifts the STAT signaling pathway in cells from an immunosuppressive STAT3/STAT6-dominant profile to an immunostimulatory STAT1/STAT2-dominant profile, driving cells toward a pro-inflammatory phenotype. Pabgraminone C reprograms cells from an immunosuppressive state to an immunostimulatory state, reversing their suppressive effect on anti-tumor immunity. Pabgraminone C inhibits established tumor growth and metastasis across multiple cancer types. Pabgraminone C overcomes resistance to PD-1 checkpoint blockade strategies. Pabgraminone C can be used in research related to liver cancer, melanoma, and colorectal cancer.

PI3Kα-IN-5 (compound 6 ab) is a potent PI3Kα/mTOR inhibitor, with an IC₅₀ of 0.7 nM and 3.3 nM, respectively. PI3Kα-IN-5 can be used for the research of colorectal cancer.

PI3Kα-IN-29 is a potent, orally active and selective PI3Kα with an IC₅₀ of 2.5 nM. PI3Kα-IN-29 exhibits >400-fold selectivity over PI3Kβ/δ/γ/mTOR. PI3Kα-IN-29 selectively degrades the H1047R mutant p110α protein and inhibits PI3Kα kinase activity. PI3Kα-IN-29 suppresses PI3K/AKT/mTOR signaling, induces G1 arrest, and inhibits migration. PI3Kα-IN-29 inhibits tumor growth in a T47 mouse model. PI3Kα-IN-29 can be used for the research of breast cancer.

PI3Kα-IN-28 (Compound 23) is an efficient dual targeted PI3K/BRD4 inhibitor. PI3Kα-IN-28 can inhibit the proliferation of various cells, such as KYSE180 and KYSE450 cells. PI3Kα-IN-28 can concentration dependently inhibit migration and colony formation, induce G0/G1 phase arrest, significantly inhibit DNA synthesis, and significantly increase the proportion of senescent cells. PI3Kα-IN-28 can inhibit the expression of p-AKT and c-Myc and activate the AMPK-p27 pathway. PI3Kα-IN-28 can be used for research on cancers such as esophageal cancer.

PI3K/HDAC-IN-5 is a dual PI3K/HDAC inhibitor. PI3K/HDAC-IN-5 inhibits PI3Kα, PI3Kβ, PI3Kγ, and PI3Kδ (IC₅₀ values of 25.41, 134.52, 166.75, and 41.58 nM, respectively) and inhibits downstream PI3K/AKT signaling. PI3K/HDAC-IN-5 inhibits HDAC6, HDAC8, and HDAC11 (IC₅₀ values of 29.35, 157.27, and 382.26 nM, respectively), increases α-tubulin and SMC3 acetylation, while not affecting histone H3/H4 acetylation. PI3K/HDAC-IN-5 induces S phase cell cycle arrest and apoptosis, and inhibits the proliferation of cervical cancer cell lines. PI3K/HDAC-IN-5 can be used for research on cervical cancer.

eALM1192 is a selective mTOR kinase inhibitor (IC₅₀ = 2.3 nM) that also inhibits DNA-PK (IC₅₀ = 84 nM), PI3Kα, and PKN3, with 37-fold selectivity for mTOR over DNA-PK. eALM1192 exhibits antiproliferative activity against cancer cell lines and colorectal cancer cell lines. eALM1192 can be used for colorectal cancer research.

PI3K/mTOR-IN-20 is a selective dual PI3K/mTOR inhibitor. PI3K/mTOR-IN-20 demonstrates nanomolar antiproliferative effects with IC₅₀s of 0.380 and 0.090 μM for MRC-5 and Mlg2908 cells. PI3K/mTOR-IN-20 reduces Ashcroft scores, hydroxyproline content, collagen deposition, and downregulates fibrosis-related proteins, while restoring lung architecture in a Bleomycin-induced pulmonary fibrosis model. PI3K/mTOR-IN-20 shows a favorable safety profile with steady weight recovery and no distinct liver or kidney toxicity. PI3K/mTOR-IN-20 can be used for fetal lung fibroblasts research.

PI3Kδ-IN-22 (Compound 26) is a selective inhibitor for PI3Kδ with pK_i of 9.3. PI3Kδ-IN-22 inhibits PI3Kδ-AKT signaling pathway in THP-1 cells, with pIC₅₀ of 9.4. PI3Kδ-IN-22 exhibits good pharmacokinetic characters in rats.

PI3Kα-IN-13 (Compound 18a) is a PI3Kα inhibitor (IC₅₀: 2.5 nM). PI3Kα-IN-13 induces tumor cell apoptosis. PI3Kα-IN-13 inhibits cancer cell proliferation with IC₅₀s of 0.75 μM (MCF-7), 3.79 μM (HCT-116), 13.71 μM (MDA-MB-231), 9.85 μM (SW620), respectively. PI3Kα-IN-13 inhibits tumor cell colony formation, migration and invasion.

PI3K-IN-58 (Compound 17f) is a PI3Kα inhibitor (IC₅₀: 0.039 μM). PI3K-IN-58 exhibits significant antiproliferative effects on PC-3, 22RV1, MDA-MB-231 and MDA-MB-453 cell lines with IC_50s of 3.48 μM, 1.06 μM, 2.21 μM and 0.93 μM, respectively. PI3K-IN-58 induces apoptosis by downregulating the expression levels of anti-apoptotic proteins Bcl-XL and Bcl-2 and upregulating the expression of anti-apoptosis protein BAX. PI3K-IN-58 can be used in PI3K-targeted cancer research.

Rac)-AZD8186 is the racemate of AZD8186 (HY-12330), a PI3K inhibitor that inhibits PI3Kβ (IC₅₀=4 nM), PI3Kδ (IC₅₀=12 nM), PI3Kα (IC₅₀=35 nM) and PI3Kγ (IC₅₀=675 nM).

PI3K/mTOR Inhibitor-12 is a potent, orally active and selective PI3K/mTOR inhibitor with IC₅₀ values of 0.06 nM and 3.12 nM for PI3Kα and mTOR, respectively. PI3K/mTOR Inhibitor-12 has antitumor activity. PI3K/mTOR Inhibitor-12 has lower liver toxicity.

MEK/PI3K-IN-2 (compound 6s) is a potent MEK/PI3K inhibitor, with IC₅₀ values of 352 nM (MEK1), 107 nM (PI3Kα), and 137 nM (PI3Kδ), respectively. MEK/PI3K-IN-2 suppresses pAKT and pERK1/2 levels. MEK/PI3K-IN-2 shows anti-proliferative activity against tumor cell lines.

PP487 is a selective dual inhibitor of Tyrosine kinase/PI3-K, with IC₅₀ values of 0.017 μM, 0.072 μM, 0.004 μM, 0.01 μM, 0.55 μM, 0.22 μM, and < 0.01 μM against DNA-PK, mTOR, Hck, Src, EGFR, EphB4, and PDGFR, respectively. PP487 can be used in cancer research.

PI3Kα-IN-30 is an orally active, selective PI3Kα inhibitor with an IC₅₀ of 2.8 nM. PI3Kα-IN-30 inhibits cancer cell proliferation, as well as the phosphorylation of Akt (S473) and pS6 (S240/244). PI3Kα-IN-30 shows low growth inhibitory activity against normal somatic cell lines at a concentration of 30 μM. PI3Kα-IN-30 induces cancer cell apoptosis and exerts anti-tumor efficacy in xenograft models. PI3Kα-IN-30 can be used for the research of breast cancer.

LCI40 is an orally active dual PI3K/BRD4 inhibitor (PI3Kα IC₅₀ = 0.071 μM, PI3Kβ IC_{50 =} 0.17 μM, PI3Kγ IC₅₀ = 0.66 μM, PI3Kδ IC₅₀ = 0.072 μM, BRD4 BD1 IC₅₀ = 0.19 μM, and BRD4 BD2 IC₅₀ = 1.88 μM. LCI40 inhibits phosphorylation of pAKT (S473) and suppresses c-MYC levels in mantle cell lymphoma cells. LCI40 displays immunomodulatory capacity with minimal toxicity to normal mouse immune cells. LCI40 can be used for the research of mantle cell lymphoma.

PI3Kα-IN-7 (Compound A12) is a potent PI3Kα inhibitor. PI3Kα-IN-7 also inhibits PI3Kβ. PI3Kα-IN-7 decreases cancer cells mitochondrial membrane potential and induces apoptosis.

PI3K-IN-35 (Compound 6l) is a highly selective PI3K inhibitor with IC₅₀ values of 13.98, 7.22 and 10.94 μM for PI3K-α、PI3K-β and PI3K-δ, respectively. PI3K-IN-35 arrests cell cycle at G2/M phase and induces apoptosis. PI3K-IN-35 can be used in leukemia research.

IMM-H012 is a specific PI3K inhibitor with an IC₅₀ of 0.80 nM against PI3Kα. IMM-H012 combined with [¹⁷⁷Lu]Lu-P4 shows synergistic antitumor effects against stomach cancer and lung cancer.