p110β Selective Inhibitors

Catalog No. Product Name Information Selective / Pan IC50 / Ki
S1169 TGX-221

TGX-221 is a p110β-specific inhibitor with IC50 of 5 nM in a cell-free assay, 1000-fold more selective for p110β than p110α.

Selective p110β, IC50: 5 nM
S8002 GSK2636771

GSK2636771 is a potent, orally bioavailable and selective inhibitor of PI3Kβ with >900-fold selectivity over PI3Kα/PI3Kγ and >10-fold over PI3Kδ. Sensitive to PTEN null cell lines.

Selective
S2658 Omipalisib (GSK2126458)

Omipalisib (GSK2126458, GSK458) is a highly selective and potent inhibitor of p110α/β/δ/γ, mTORC1/2 with Ki of 0.019 nM/0.13 nM/0.024 nM/0.06 nM and 0.18 nM/0.3 nM in cell-free assays, respectively. Omipalisib induces autophagy. Phase 1.

Pan p110β, Ki: 0.13 nM
S8045 KU-0060648

KU-0060648 is a dual inhibitor of DNA-PK and PI3Kα, PI3Kβ, PI3Kδ with IC50 of 8.6 nM and 4 nM, 0.5 nM, 0.1 nM respectively, less inhibition of PI3Kγ with IC50 of 0.59 μM.

Pan PI3Kβ, IC50: 0.5 nM
S1360 GSK1059615

GSK1059615 is a dual inhibitor of PI3Kα/β/δ/γ (reversible) and mTOR with IC50 of 0.4 nM/0.6 nM/2 nM/5 nM and 12 nM, respectively. Phase 1.

Pan PI3Kβ, IC50: 0.6 nM
S7028 Duvelisib (IPI-145)

Duvelisib (IPI-145, INK1197) is a novel and selective PI3K δ/γ inhibitor with Ki and IC50 of 23 pM/243 pM and 1 nM/50 nM in cell-free assays, highly selective for PI3K δ/γ than other protein kinases. Phase 3.

Pan PI3Kβ, Ki: 1564 pM
S2743 PF-04691502

PF-04691502 (PF4691502) is an ATP-competitive PI3K(α/β/δ/γ)/mTOR dual inhibitor with Ki of 1.8 nM/2.1 nM/1.6 nM/1.9 nM and 16 nM in cell-free assays, little activity against either Vps34, AKT, PDK1, p70S6K, MEK, ERK, p38, or JNK. PF-04691502 induces apoptosis. Phase 2.

Pan PI3Kβ, Ki: 2.1 nM
S1038 PI-103

PI-103 is a multi-targeted PI3K inhibitor for p110α/β/δ/γ with IC50 of 2 nM/3 nM/3 nM/15 nM in cell-free assays, less potent to mTOR/DNA-PK with IC50 of 30 nM/23 nM. PI-103 induces apoptosis in murine T-cell Lymphoma.

Pan p110β, IC50: 3 nM
S2802 Copanlisib (BAY 80-6946)

Copanlisib (BAY 80-6946) is a potent pan-class I PI3K with IC50 of 0.5, 3.7, 6.4, and 0.7 nM in cell-free assays for PI3Kα/β/γ/δ , respectively. Phase 3.

Pan PI3Kβ, IC50: 3.7 nM
S7694 AZD8186

AZD8186 is a potent and selective inhibitor of PI3Kβ and PI3Kδ with IC50 of 4 nM and 12 nM, respectively. Phase 1.

Pan PI3Kβ, IC50: 4 nM
S2739 PKI-402

PKI-402 is a potent dual pan-PI3K/mTOR inhibitor targeting PI3Kα/β/γ/δ and mTOR with IC50 of 2 nM/7 nM/16 nM/14 nM and 3 nM, respectively; also potent to PI3Kα mutants E545K and H1047R.

Pan PI3Kβ, IC50: 7 nM
S7103 Taselisib (GDC 0032)

Taselisib (GDC 0032, RG7604) is a potent, next-generation β isoform-sparing PI3K inhibitor targeting PI3Kα/δ/γ with Ki of 0.29 nM/0.12 nM/0.97nM, >10 fold selective over PI3Kβ.

Pan PI3Kβ, Ki: 9.1 nM
S1462 AZD6482

AZD6482 (KIN-193) is a PI3Kβ inhibitor with IC50 of 10 nM, 8-, 87- and 109-fold more selective to PI3Kβ than PI3Kδ, PI3Kα and PI3Kγ in cell-free assays. Phase 1.

Pan PI3Kβ, IC50: 10 nM
S8738 Bimiralisib (PQR309)

Bimiralisib (PQR309) is a novel brain-penetrant dual PI3K/mTOR inhibitor with in vitro and in vivo antilymphoma activity. It displays excellent selectivity versus PI3K-related lipid kinases, protein kinases and unrelated targets.

Pan PI3Kβ, Kd: 11 nM
S7016 VS-5584 (SB2343)

VS-5584 (SB2343) is a potent and selective dual PI3K/mTOR inhibitor for mTOR, PI3Kα/β/δ/γ with IC50 of 3.4 nM and 2.6-21 nM, respectively. Phase 1.

Pan PI3Kβ, IC50: 21 nM
S8157 GDC-0326

GDC-0326 is a potent and selective inhibitor of PI3Kα with Ki value of 0.2 nM; remarkably selective over the other class I isoforms in enzymatic assays.

Pan PI3Kβ, Ki: 26.6 nM
S2696 Apitolisib (GDC-0980)

Apitolisib (GDC-0980, RG7422, GNE 390) is a potent, class I PI3K inhibitor for PI3Kα/β/δ/γ with IC50 of 5 nM/27 nM/7 nM/14 nM in cell-free assays, respectively. Also a mTOR inhibitor with Ki of 17 nM in a cell-free assay, and highly selective versus other PIKK family kinases. Apitolisib activates autophagy and apoptosis simultaneously in pancreatic cancer cells. Phase 2.

Pan p110β, IC50: 27 nM
S1065 Pictilisib (GDC-0941)

Pictilisib (GDC-0941, RG7321) is a potent inhibitor of PI3Kα/δ with IC50 of 3 nM in cell-free assays, with modest selectivity against p110β (11-fold) and p110γ (25-fold). Pictilisib (GDC-0941) induces autophagy and apoptosis. Phase 2.

Pan p110β, IC50: 33 nM
S7645 Pilaralisib (XL147)

Pilaralisib (XL147) is a selective and reversible class I PI3K inhibitor for PI3Kα/δ/γ with IC50 of 39 nM/36 nM/23 nM in cell-free assays, less potent to PI3Kβ. Phase 1/2.

Pan PI3Kβ, IC50: 36 nM
S1072 ZSTK474

ZSTK474 inhibits class I PI3K isoforms with IC50 of 37 nM in a cell-free assay, mostly PI3Kδ. Phase1/2.

Pan PI3Kβ, IC50: 44 nM
S8163 Paxalisib (GDC-0084)

Paxalisib (GDC-0084, RG7666) is a brain penetrant inhibitor of PI3K and mTOR with Kiapp values of 2 nM, 46 nM, 3 nM, 10 nM and 70 nM for PI3Kα, PI3Kβ, PI3Kδ, PI3Kγ and mTOR.

Pan PI3Kβ, Ki app: 46 nM
S2759 Fimepinostat (CUDC-907)

CUDC-907 is a dual PI3K and HDAC inhibitor for PI3Kα and HDAC1/2/3/10 with IC50 of 19 nM and 1.7 nM/5 nM/1.8 nM/2.8 nM, respectively. CUDC-907 induces cell cycle arrest and apoptosis in breast cancer cells. Phase 1.

Pan PI3Kβ, IC50: 54 nM
S2749 BGT226 (NVP-BGT226) maleate

BGT226 (NVP-BGT226) maleate is a novel class I PI3K/mTOR inhibitor for PI3Kα/β/γ with IC50 of 4 nM/63 nM/38 nM. Phase 1/2.

Pan PI3Kβ, IC50: 63 nM
S1009 Dactolisib (BEZ235)

Dactolisib (BEZ235, NVP-BEZ235) is a dual ATP-competitive PI3K and mTOR inhibitor for p110α/γ/δ/β and mTOR(p70S6K) with IC50 of 4 nM /5 nM /7 nM /75 nM /6 nM in cell-free assays, respectively. Inhibits ATR with IC50 of 21 nM in 3T3TopBP1-ER cell. Dactolisib induces autophagy and suppresses HIV-1 replication. Phase 2.

Pan p110β, IC50: 75 nM
S1523 Voxtalisib (XL765) Analogue

Voxtalisib (SAR245409, XL765) Analogue is a dual inhibitor of mTOR/PI3K, mostly for p110γ with IC50 of 9 nM; also inhibits DNA-PK and mTOR. Phase 1/2.

Pan PI3Kβ, IC50: 113 nM
S7646 Voxtalisib (XL765)

Voxtalisib (SAR245409, XL765) is a dual inhibitor of mTOR/PI3K, mostly for p110γ with IC50 of 9 nM; also inhibits DNA-PK and mTOR. Phase 1/2.

Pan PI3Kβ, IC50: 113 nM
S2699 CH5132799

CH5132799 inhibits class I PI3Ks, particularly PI3Kα with IC50 of 14 nM; less potent to PI3Kβδγ, while sensitive in PIK3CA mutations cell lines. Phase 1.

Pan PI3Kβ, IC50: 0.12 μM
S2247 Buparlisib (BKM120)

Buparlisib (BKM120, NVP-BKM120) is a selective PI3K inhibitor of p110α/β/δ/γ with IC50 of 52 nM/166 nM/116 nM/262 nM in cell-free assays, respectively. Reduced potency against VPS34, mTOR, DNAPK, with little activity to PI4Kβ. Buparlisib induces apoptosis. Phase 2.

Pan p110β, IC50: 166 nM
S2870 TG100713

TG100713 is a pan-PI3K inhibitor against PI3Kγ, PI3Kδ, PI3Kα and PI3Kβ with IC50 of 50 nM, 24 nM, 165 nM and 215 nM, respectively.

Pan PI3Kβ, IC50: 215 nM
S1410 AS-605240

AS-605240 selectively inhibits PI3Kγ with IC50 of 8 nM, over 30-fold and 7.5-fold more selective for PI3Kγ than PI3Kδ/β and PI3Kα in cell-free assays, respectively.

Pan PI3Kβ, IC50: 270 nM
S1187 PIK-90

PIK-90 is a PI3Kα/γ/δ inhibitor with IC50 of 11 nM/18 nM/58 nM, respectively, less potent to PI3Kβ.

Pan PI3Kβ, IC50: 350 nM
S1118 XL147 analogue

XL147 analogue (SAR245408) is a selective and reversible class I PI3K inhibitor for PI3Kα/δ/γ with IC50 of 39 nM/36 nM/23 nM in cell-free assays, less potent to PI3Kβ. XL147 analogue induces apoptosis. Phase 1/2.

Pan PI3Kβ, IC50: 383 nM
S8752 leniolisib (CDZ 173)

Leniolisib (CDZ 173) is a potent PI3Kδ selective inhibitor with biochemical IC50 values of 0.244, 0.424, 2.23 and 0.011 μM for PI3Kα, PI3Kβ, PI3Kγ and PI3Kδ, respectively.

Pan PI3Kβ, IC50: 0.424 μM
S7966 AZD8835

AZD8835 ia a novel mixed inhibitor of PI3Kα and PI3Kδ with IC50 of 6.2 nM and 5.7 nM, respectively, also with selectivity against PI3Kβ (IC50=431 nM) and PI3Kγ (IC50=90 nM).

Pan PI3Kβ, IC50: 431 nM
S2227 PIK-294

PIK-294 is a highly selective p110δ inhibitor with IC50 of 10 nM, 1000-, 49- and 16-fold less potent to PI3Kα/β/γ, respectively.

Pan p110β, IC50: 490 nM
S1105 LY294002

LY294002 (SF 1101, NSC 697286) is the first synthetic molecule known to inhibit PI3Kα/δ/β with IC50 of 0.5 μM/0.57 μM/0.97 μM, respectively; more stable in solution than Wortmannin, and also blocks autophagosome formation. It not only binds to class I PI3Ks and other PI3K-related kinases, but also to novel targets seemingly unrelated to the PI3K family. LY294002 also inhibits CK2 with IC50 of 98 nM. LY294002 is a non-specific DNA-PKcs inhibitor and activates autoph

Pan p110β, IC50: 0.97 μM
S7623 PI-3065

PI-3065 is a selective p110δ inhibitor with IC50 of 15 nM, >70-fold selectivity over other PI3K family members.

Pan p110β, IC50: 1078 nM
S7018 CZC24832

CZC24832 is the first selective PI3Kγ inhibitor with IC50 of 27 nM, with 10-fold selectivity over PI3Kβ and >100-fold selectivity over PI3Kα and PI3Kδ.

Pan PI3Kβ, IC50: 1.1 μM
S1352 TG100-115

TG100-115 is a PI3Kγ/δ inhibitor with IC50 of 83 nM/235 nM, with little effect on PI3Kα/β. Phase 1/2.

Pan PI3Kβ, IC50: 1.2 μM
S2347 Quercetin Dihydrate

Quercetin (Sophoretin), a polyphenolic flavonoid found in a wide variety of plant-based foods, such as apples, onions, berries, and red wine, is utilized in many different cultures for their nervous system and anticancer effects. Quercetin (dihydrate), a natural flavonoid, is a stimulator of recombinant SIRT1 and a PI3K inhibitor with IC50s of 2.4 μM, 3.0 μM and 5.4 μM for PI3K γ, PI3K δ and PI3K β, respectively.

Pan PI3Kβ, IC50: 5.4 μM
S2391 Quercetin (NSC 9221)

Quercetin (NSC 9221, Sophoretin, C.I. 75720), a natural flavonoid present in vegetables, fruit and wine, is a stimulator of recombinant SIRT1 and also a PI3K inhibitor with IC50 of 2.4-5.4 μM. Quercetin induces mitophagy, apoptosis and protective autophagy. Phase 4.

Pan PI3Kβ, IC50: 5.4 μM