PI3Kβ
PI3Kβ is a class I PI3K catalytic isoform that produces PIP3, linking receptor inputs to signaling networks that regulate cell growth, survival, and movement[1]. Mechanistically, PI3Kβ uniquely supports synergistic PIP3 formation when GPCR and RTK pathways are coactivated in myeloid cells, whereas p110α, p110β, and p110δ show partial redundancy downstream of M-CSF alone and p110γ acts nonredundantly downstream of C5a alone[1]. In PTEN-deficient breast tumour models, PI3Kβ inactivation reduced STAT3 signaling, increased immune-stimulatory molecules, and promoted anti-tumour immune responses[2]. Compared with related PI3K isoforms, this evidence positions PI3Kβ as a context-specific integrator of coincident receptor signaling and a disease-relevant driver in PTEN-null tumours[1][2]. For experimental applications, the PI3Kβ-selective inhibitor KIN-193 blocked AKT signaling and tumour growth dependent on p110β activation or PTEN loss, while pharmacological PI3Kβ inhibition also synergized with immunotherapy in PTEN-null breast tumour models[3][2].
References:
- [1]. Houslay DM, et al. Coincident signals from GPCRs and receptor tyrosine kinases are uniquely transduced by PI3Kβ in myeloid cells. Sci Signal. 2016 Aug 16;9(441):ra82. [Content Brief]
- [2]. Bergholz JS, et al. PI3Kβ controls immune evasion in PTEN-deficient breast tumours. Nature. 2023 May;617(7959):139-146. [Content Brief]
- [3]. Ni J, et al. Functional characterization of an isoform-selective inhibitor of PI3K-p110β as a potential anticancer agent. Cancer Discov. 2012 May;2(5):425-33. [Content Brief]
All Product Categories
-
PI3Kβ Related Products (162)
Related Products (162)
-
FD274
0 ImagesFD274 is a highly potent PI3K/mTOR dual inhibitor with IC50s of 0.65 nM, 1.57 nM, 0.65 nM, 0.42 nM, and 2.03 nM against PI3Kα/β/γ/δ and mTOR, respectively. FD274 exhibits significant anti-proliferation of AML cell lines (HL-60 and MOLM-16). FD274 arrests HL-60 cell cycle at G1 phase and increases apoptosis. FD274 demonstrates dose-dependent inhibition of tumor growth in the HL-60 xenograft model. FD274 has the potential for acute myeloid leukemia research.
-
CHMFL-PI4K-127
0 ImagesCHMFL-PI4K-127 (compound 15g) is an orally active, potent and high selective PfPI4K (Plasmodium falciparum PI4K kinase) inhibitor, with an IC50 of 0.9 nM. CHMFL-PI4K-127 exhibits potent activity against 3D7 Plasmodium falciparum, with an EC50 of 25.1 nM. CHMFL-PI4K-127 shows antimalaria efficacy.
-
PI3Kδ-IN-16
0 ImagesPI3Kδ-IN-16 is a potent and selective PI3Kδ inhibitor with an IC50 value of 0.9 nM. PI3Kδ-IN-16 has a strong anti-proliferative effect on SU-DHL-6 cells, causing cell cycle arrest and inducing apoptosis. PI3Kδ-IN-16 tightly bins to PI3Kδ protein with a planar-shaped conformation. The kinase activity of PI3Kδ-IN-16 which is ~378-fold over PI3Kα, 412-fold over PI3Kβ, and 10-fold over PI3Kγ. PI3Kδ-IN-16 can be used for the study of hematologic malignancies.
-
Umbralisib tosylate
0 ImagesCat. No.: HY-12279ACAS No.: 1532533-72-4Synonyms: TGR-1202 tosylate; RP5264 tosylateUmbralisib (TGR-1202) tosylate is an orally active, potent and selective dual PI3Kδ and casein kinase-1-ε (CK1ε) inhibitor, with EC50 of 22.2 nM and 6.0 μM, respectively. Umbralisib tosylate exhibits unique immunomodulatory effects on chronic lymphocytic leukemia (CLL) T cells. Umbralisib tosylate can be used for haematological malignancies reseach.
-
Umbralisib sulfate
0 ImagesCat. No.: HY-12279BCAS No.: 1532533-75-7Synonyms: TGR-1202 sulfate; RP-5264 sulfateUmbralisib (TGR-1202) sulfate is an orally active, potent and selective dual PI3Kδ and casein kinase-1-ε (CK1ε) inhibitor, with EC50 of 22.2 nM and 6.0 μM, respectively. Umbralisib sulfate exhibits unique immunomodulatory effects on chronic lymphocytic leukemia (CLL) T cells. Umbralisib sulfate can be used for haematological malignancies reseach.
-
PI3K/HDAC-IN-1
0 ImagesCat. No.: HY-128582CAS No.: 2361418-52-0
-
PI3K-IN-6
0 ImagesCat. No.: HY-101115CAS No.: 1842380-77-1PI3K-IN-6 (compound 20a) is an oral active and highly selective phosphoinositide 3-kinase (PI3K) β/δ inhibitor, with IC50 values of 7.8 nM/5.3 nM for PI3K β/δ, respectively. PI3K-IN-6 (compound 20a) has potential top treat phosphatase and tensin homolog (PTEN) feficient tumors.
-
JMC14
0 ImagesCat. No.: HY-174366CAS No.: 2256080-83-6JMC14 is a selective and orally active PI3Kδ and CSF1R inhibitor with IC50 values of 12 nM and 143 nM, respectively. JMC14 preferentially inhibits PI3Kδ-mediated signaling at the cellular level. JMC14 demonstrates potent antitumor activity against B-cell lymphomas and triple-negative breast cancer (TNBC) in both in vitro and vivo studies. JMC14 can be used for the study of antitumor immunity.
