PI3Kδ
PI3Kδ is a class I PI3K isoform that generates PIP3, a second messenger used by cell-surface receptors to control immune-cell movement, growth, survival, and differentiation[1]. Mechanistically, PI3Kδ acts in adaptive immunity, and both loss-of-function and gain-of-function defects in this pathway cause primary immunodeficiency, showing that PI3Kδ activity requires precise dynamic regulation[2]. In B-lineage models, p110δ and p110α are essential for pre-B-cell receptor signaling and B-cell development, while p110α, but not p110β, can compensate for p110δ loss during early bone-marrow B-cell development[3]. Compared with related isoforms, PI3Kα and PI3Kβ are relatively ubiquitous, whereas PI3Kδ is mostly confined to myeloid and lymphoid lineages, making high PI3Kδ expression a characteristic of immune cells[1]. In disease and experimental applications, idelalisib is an orally active selective PI3Kδ inhibitor with antitumor activity in previously treated indolent non-Hodgkin lymphoma and relapsed chronic lymphocytic leukemia[4][5]. Therefore, PI3Kδ supports research designs focused on immune signaling, B-cell receptor biology, primary immunodeficiency, inflammatory models, and selective PI3Kδ inhibitor pharmacology[1][2][3][4][5].
References:
- [1]. Vervloessem T, et al. The type 2 inositol 1,4,5-trisphosphate receptor, emerging functions for an intriguing Ca²⁺-release channel. Biochim Biophys Acta. 2015 Sep;1853(9):1992-2005. [Content Brief]
- [2]. Lucas CL, et al. PI3Kδ and primary immunodeficiencies. Nat Rev Immunol. 2016 Nov;16(11):702-714. [Content Brief]
- [3]. Ramadani F, et al. The PI3K isoforms p110alpha and p110delta are essential for pre-B cell receptor signaling and B cell development. Sci Signal. 2010 Aug 10;3(134):ra60. [Content Brief]
- [4]. Gopal AK, et al. PI3Kδ inhibition by idelalisib in patients with relapsed indolent lymphoma. N Engl J Med. 2014 Mar 13;370(11):1008-18. [Content Brief]
- [5]. Furman RR, et al. Idelalisib and rituximab in relapsed chronic lymphocytic leukemia. N Engl J Med. 2014 Mar 13;370(11):997-1007. [Content Brief]
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PI3Kδ Related Products (205)
Related Products (205)
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ST-168
0 ImagesCat. No.: HY-120281CAS No.: 2126038-25-1ST-168 is an orally active MEK/PI3K inhibitor with an IC50 of 182 nM against MEK1 and IC50 values of 69.2, 41.7, 1482 and 2293 nM against PI3Kα, PI3Kδ, PI3Kβ and PI3Kγ respectively. ST-168 completely inhibits the phosphorylation of ERK1/2 and AKT and induces cancer cell death in a 3D tumor sphere model. ST-168 demonstrates significant antitumor effects in the A375 melanoma mouse model. ST-168 improves the ocular toxicity profile of MEK inhibitors, showing lower caspase activation levels, indicating reduced apoptosis induction. ST-168 can be used in melanoma research.
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PI3Kδ-IN-24
0 ImagesCat. No.: HY-175002CAS No.: 3051829-20-7PI3Kδ-IN-24 is a selective PI3Kδ inhibitor (IC50 = 0.1 nM). PI3Kδ-IN-24 exhibits significant antiproliferative effects against PI3Kδ-overexpressing cancer cell lines. PI3Kδ-IN-24 reduces p-AKT levels and induces cell cycle arrest and apoptosis in tumor cells. PI3Kδ-IN-24 is useful in cancer research, such as diffuse large B-cell lymphoma (DLBCL).
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PI3Kα-IN-14
0 ImagesCat. No.: HY-157125CAS No.: 3026856-46-9PI3Kα-IN-14 (compound F8) is a selective PI3Kα inhibitor with an IC50 of 0.14 nM. PI3Kα-IN-14 induces a great decrease in mitochondrial membrane which caused cell cycle arrest at G1 phase and apoptosis in U87-MG cells. PI3Kα-IN-14 shows significant anti-proliferative activities against three tumor-derived cell lines (PC-3: IC50 of 0.28 μM; HCT-116: IC50 of 0.57 μM; and U87-MG: IC50 of 1.37 μM).
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PI3Kδ/γ-IN-2
0 ImagesCat. No.: HY-146789CAS No.: 2412195-89-0
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DHW-208
0 ImagesCat. No.: HY-128633CAS No.: 2269470-35-9PI3K-IN-4 is a potent Pan-PI3K inhibitor. PI3K-IN-4 has high activity for three PI3K isoforms with the IC50 values of picomole. PI3K-IN-4 shows superior inhibitory activity against PI3Kα (IC50 = 0.20 nM), PI3Kβ (IC50 = 2.99 nM), PI3Kδ (IC50 = 0.48 nM) and PI3Kγ (IC50 = 0.58 nM) and has no significant activity against EGFR. PI3K-IN-4 inhibits cancer cell growth though PI3K/Akt signaling pathway, leading to the inhibition of colony formation and the induction of apoptosis. PI3K-IN-4 can be used for lung, colon and breast cancer research.
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PI3K/HDAC-IN-4
0 ImagesCat. No.: HY-172889CAS No.: 3085191-45-0PI3K/HDAC-IN-4 (Compound 31f) is a PI3K/HDAC dual inhibitor (IC50: 0.2μM). PI3K/HDAC-IN-4 shows high selectivity for HDAC1-3 (IC50 values of 75.5 nM, 70.9 nM, and 1.9 nM, respectively). PI3K/HDAC-IN-4 is a potent PIK3 inhibitor with IC50 values of 2.5 nM, 80.5 nM, 10.0 nM, and 57.2 nM for PI3Kα, β, δ, and γ, respectively. PI3K/HDAC-IN-4 significantly induces tumor cell apoptosis by simultaneously inhibiting the PI3K/AKT/mTOR signaling pathway and HDAC1-3. PI3K/HDAC-IN-4 exhibits potent antiproliferative activity in a variety of tumor cell lines (e.g., MV4-11, Jeko-1, HL60, and MCF-7, with IC50 values of 0.2, 0.9, 0.8, and 1.5 μM, respectively). PI3K/HDAC-IN-4 can be used in the study of lymphoma and leukemia.
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SJY26
0 ImagesCat. No.: HY-178485SJY26 is a PI3K/HDAC dual-target inhibitor with IC50s of 0.59 nM (PI3Kα and PI3Kδ), 2.02 nM (PI3Kγ), 12.69 nM (PI3Kβ) and 114 nM (HDAC1). SJY26 exhibits potent broad-spectrum anti-proliferative activity, and is particularly sensitive to Jurkat and PC9R cells. SJY26 inhibited the migration of PC9R cells, arrested the cell cycle and induced cell apoptosis. SJY26 reduces AKT phosphorylation, and decreases histone H3 deacetylation (Ac-H3). SJY26 can be used for the studies of non-small cell lung cancer and leukemia.
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TYM-3-98
0 ImagesTYM-3-98 is a selective inhibitor for PI3Kδ, with an IC50 of 7.1 nM. TYM-3-98 inhibits proliferationso of B-lymphoma cells. TYM-3-98 inhibits PI3K/AKT/mTOR signaling pathway through induction of apoptosis. TYM-3-98 exhibits good pahrmacokinetic characters and antitumor efficacy in mouse/rat model, without significant toxicity.
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PI3Kα-IN-8
0 ImagesCat. No.: HY-147983CAS No.: 2315320-24-0PI3Kα-IN-8 (Compound 9g) is a selective PI3Kα inhibitor with an IC50 of 0.012 μM. PI3Kα-IN-8 increases intracellular reactive oxygen species level, decreases mitochondrial membrane potential and induces apoptosis.
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PI3Kδ-IN-26
0 ImagesCat. No.: HY-175734CAS No.: 2019131-11-2PI3Kδ-IN-26 (Compound 58) is a selective and orally active PI3Kδ inhibitor with an IC50 of 14 nM. PI3Kδ-IN-26 significantly attenuates the inflammatory responses in house dust mite (HDM) induced chronic asthma mouse models. PI3Kδ-IN-26 can be used for inflammatory, autoimmune and hyperproliferative diseases research.
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LTURM 36
0 ImagesCat. No.: HY-120135CAS No.: 1879887-94-1LTURM 36 (20i) is a PI3K inhibitor, with IC50 values of 0.64 μM and 5.0 μM for PI3Kδ and PI3Kβ, respectively. LTURM 36 can be used in anticancer research.
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CC-M-1
0 ImagesCat. No.: HY-179464CAS No.: 3079943-00-0CC-M-1 is a potent and selective PI3K/mTOR inhibitor. CC-M-1 inhibits PI3Kα/β/γ/δ and mTOR with IC50 values of 0.68, 1.02, 1.03, 8.03, and 15 nM, respectively. CC-M-1 inhibits the proliferation of colorectal cancer cell lines, including HCT-116 (IC50 = 0.38 μM) and HT-29 (IC50 = 1.70 μM). CC-M-1 can be used for colorectal cancer (CRC) research.
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RV-6153
0 ImagesCat. No.: HY-124459CAS No.: 1628139-03-6RV-6153 is a potent and selective dual inhibitor of PI3Kδ and PI3Kγ, with IC50 values of 2.5 nM and 28 nM, respectively. RV-6153 dually inhibits PI3Kδ and PI3Kγ, blocking Akt phosphorylation, thereby inhibiting ROS production and cytokine release at the cellular level, and reducing neutrophil and macrophage accumulation in the airways in vivo. RV-6153 can be used in research on chronic obstructive pulmonary disease, asthma, and other inflammatory diseases.
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PI3Kγ inhibitor 1
0 ImagesCat. No.: HY-10549CAS No.: 1172118-03-4PI3Kγ inhibitor 1 is a PI3Kδ and PI3Kγ inhibitor extracted from patent WO2014004470A1, Compound 168 in Table 4, has IC50s of <100 nM.
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AS2541019
0 ImagesCat. No.: HY-123790CAS No.: 2098906-98-8AS2541019 is a PI3Kδ (p110δ) inhibitor. AS2541019 inhibits B cell activation and proliferation, and suppresses xenograft antibody production.
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Izorlisib methanesulfonate
0 ImagesCat. No.: HY-15466ACAS No.: 2242053-82-1Synonyms: CH5132799 methanesulfonateIzorlisib (CH5132799) methanesulfonate is an orally active, selective Class I PI3K inhibitor with an IC50 value of 14 nM against PI3Kα. Izorlisib methanesulfonate specifically inhibits Class I PI3K (particularly PI3Kα and its mutants) and blocks the PI3K/Akt/mTOR pathway; this leads to cell cycle arrest at the G1 phase and apoptosis without triggering feedback activation of Akt by competitively binding to the ATP-binding site of PI3K. Izorlisib methanesulfonate can be used in research on cancers harboring PIK3CA mutations or PTEN loss (such as breast, ovarian, prostate, and endometrial cancers).
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AM-0687
0 ImagesCat. No.: HY-120471CAS No.: 1259522-94-5
