Ibrutinib (PCI-32765)

Catalog No.S2680

Ibrutinib (PCI-32765) Chemical Structure

Molecular Weight(MW): 440.5

Ibrutinib (PCI-32765) is a potent and highly selective Brutons tyrosine kinase (Btk) inhibitor with IC50 of 0.5 nM in cell-free assays, modestly potent to Bmx, CSK, FGR, BRK, HCK, less potent to EGFR, Yes, ErbB2, JAK3, etc.

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In DMSO USD 272 In stock
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Cited by 336 Publications

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Biological Activity

Description Ibrutinib (PCI-32765) is a potent and highly selective Brutons tyrosine kinase (Btk) inhibitor with IC50 of 0.5 nM in cell-free assays, modestly potent to Bmx, CSK, FGR, BRK, HCK, less potent to EGFR, Yes, ErbB2, JAK3, etc.
Targets
BTK [1]
(Cell-free assay)		 BLK [1]
(Cell-free assay)		 Bmx [1]
(Cell-free assay)		 CSK [1]
(Cell-free assay)		 FGR [1]
(Cell-free assay)
0.5 nM 0.5 nM 0.8 nM 2.3 nM 2.3 nM
In vitro

Ibrutinib shows the potent and irreversible inhibitory effect and selectivity for Btk enzymatic activity. In BCR pathway-activated DOHH2 cell line, Ibrutinib inhibits autophosphorylation of Btk, phosphorylation of Btk's physiological substrate PLCγ, and phosphorylation of further downstream kinase, ERK with IC50 of 11 nM, 29 nM and 13 nM, respectively. [1] Ibrutinib exhibits a significant dose-dependent and time-dependent induction of cytotoxicity in chronic lymphocytic leukemia (CLL) cells. In addition, Ibrutinib induces cell death depending on caspase pathway activation and antagonizes the ability of CLL cells to proliferate after TLR signaling. [2] A recent study shows that Ibrutinib inhibits BCR-activated primary B cell proliferation with IC50 of 8 nM and results in inhibition of TNFα, IL-1β and IL-6 production in primary monocytes with IC50 of 2.6 nM, 0.5 nM and 3.9 nM, respectively. [3]
Cell Data
Cell Lines Assay Type Concentration Incubation Time Formulation Activity Description PMID
Sf9 cells NUL3PXpqTnWwY4Tpc44h[XO|YYm= M2LqWlEhcA>? M1TSbmlvcGmkaYTpc44hd2ZiaIXtZY4h\nWubD3s[Y5ofGhiQmTLJIV5eHKnc4Pl[EBqdiCVZkmgZ4VtdHNidYPpcochTkGPLWPyZ5Rq\GVicHXweIll\SCjczDzeYJ{fHKjdHWgZYZ1\XJiNkCgcYlveyCkeTDUVk1HWkWWIFHzd4F697zOIFnDOVA:OC53IH7NMi=> M1K5VlIyQTV6NUS3
human Pfeiffer cells NU[zUpVmTnWwY4Tpc44h[XO|YYm= NFfkN5o4OiCq MmTNR5l1d3SxeHnjbZR6KGGpYXnud5QhcHWvYX6gVIZmcW[oZYKgZ4VtdHNiYYPz[ZN{\WRiYYOg[5Jwf3SqIHnubIljcXSrb36gZYZ1\XJiN{KgbJJ{KGK7IFPlcIxVcXSncj3HcI8hdHWvaX7ld4NmdnRiY3XscEB3cWGkaXzpeJkh[XO|YYmsJGlEPTB;MjDuUU4> NYLxUGVvOjR7MUWyPVE>
human Ramos cells MVfGeY5kfGmxbjDhd5NigQ>? MmfxNUBp MXPJcohq[mm2aX;uJI9nKEK2azDpckBpfW2jbjDSZY1weyClZXzsd{Bie3Onc4Pl[EBieyCrbnjpZol1cW:wIH;mJHBNSy2pYX3tZVIheGixc4Doc5J6dGG2aX;uJIF1KFS7ckGyNVch[W[2ZYKgNUBpeiCkeTDX[ZN1\XKwIHLsc5Qh[W6jbInzbZMtKEmFNUC9NVQhdk1w M3y2WVI1QTF3Mkmx
Sf9 cells NHv4SmVHfW6ldHnvckBie3OjeR?= NVTq[pk6OSCq MVvJcohq[mm2aX;uJI9nKEy\Tj3BJIV5eHKnc4Pl[EBqdiCVZkmgZ4VtdHNiYX\0[ZIhPjBibXnud{BjgSCWUj3GVmVVKEG|c3H5MEBKSzVyPUCuNkDPxE1w NE\uTJozOTl3OEW0Oy=>
human DOHH2 cells M1T4fmN6fG:2b4jpZ:Kh[XO|YYm= NVfYSHVVPzJiaB?= NVPROZNMS3m2b4TvfIlkcXS7IHHnZYlve3RiaIXtZY4hTE:KSEKgZ4VtdHNiYYPz[ZN{\WRiYYOg[5Jwf3SqIHnubIljcXSrb36gZYZ1\XJiN{KgbJJ{KGK7IFPlcIxVcXSncj3HcI8hdHWvaX7ld4NmdnRiY3XscEB3cWGkaXzpeJkh[XO|YYmsJGlEPTB;MD60NUDPxE1w NIT1d4EzPDlzNUK5NS=>
human SU-DHL6 cells MYnDfZRwfG:6aXRCpIF{e2G7 NEXhUYk4OiCq MVzDfZRwfG:6aXPpeJkh[WejaX7zeEBpfW2jbjDTWU1FUEx4IHPlcIx{KGG|c3Xzd4VlKGG|IHfyc5d1cCCrbnjpZol1cW:wIHHmeIVzKDd{IHjyd{BjgSCFZXzsWIl1\XJvR3zvJIx2dWmwZYPj[Y51KGOnbHygeoli[mmuaYT5JIF{e2G7LDDJR|UxRTBwNUig{txONg>? NW\RR2RUOjR7MUWyPVE>
human WSU-NHL cells MVzDfZRwfG:6aXRCpIF{e2G7 NEfIWlk4OiCq M1PHS2N6fG:2b4jpZ4l1gSCjZ3HpcpN1KGi3bXHuJHdUXS2QSFygZ4VtdHNiYYPz[ZN{\WRiYYOg[5Jwf3SqIHnubIljcXSrb36gZYZ1\XJiN{KgbJJ{KGK7IFPlcIxVcXSncj3HcI8hdHWvaX7ld4NmdnRiY3XscEB3cWGkaXzpeJkh[XO|YYmsJGlEPTB;MT6wPUDPxE1? MlP6NlQ6OTV{OUG=
human Rec1 cells NYnZOZJwTnWwY4Tpc44h[XO|YYm= M2\1TVIvPSEQvF2= MnTkOkBp M{DscmlvcGmkaYTpc44hd2ZiTInuJJBpd3OyaH;yfYxifGmxbjDpckBpfW2jbjDS[YMyKGOnbHzzJIF1KDJwNTD1UUBqdmO3YnH0[YQh\m:{IE[gbJJ{KGK7IGfld5Rmem5iYnzveJRqdmdibXX0bI9l M2fjSlI2OjJ{OEe3

... Click to View More Cell Line Experimental Data
Assay
Methods Test Index PMID
Western blot
pEGFR(Tyr1068) / EGFR; 

PubMed: 28061447     


Ibrutinib inhibitory effects on EGFRY1068 auto-phosphorylation in the HCC827 cell line at different time points by removal of drug after 4 h pretreatment.

pBTK / pPLCγ2 / pAKT / pERK / pJNK; 

PubMed: 23940282     


Mino (left panel) or Jeko1 (right panel) cells pretreated with vehicle or ibrutinib 10, 100, or 1000 nM were either stimulated with anti-IgM, CXCL12, or CXCL13 or treated with medium (Med) for 15 minutes and then immunoblotted for pBTK, pPLCγ2, pAKT, pERK, and pJNK.

28061447 23940282
Immunofluorescence
CD11b; 

PubMed: 30231870     


BV2 microglial cells were pretreated with ibrutinib (1 μM) or vehicle (1% DMSO) for 30 min, followed by treatment with LPS (1 μg/ml) or PBS for 5.5 h and immunostaining with an anti-CD11b antibody. Scale bar = 20 μm.

COX-2; 

PubMed: 30231870     


BV2 microglial cells were treated with vehicle (1% DMSO) or ibrutinib (1 μM) for 30 min, followed by PBS or LPS (1 μg/ml) for 5.5 h, and immunocytochemistry was conducted with anti-CD11b and anti-COX-2 antibodies. 

30231870
ELISA
hTNFα; 

PubMed: 26627823     


PBMs were isolated and pretreated with 1, 5, or 10 μm ibrutinib (IB) or left untreated (UT, −). Pretreated PBMs were incubated for 24 h in 96-well plates precoated without (PBS) or with 10 μg/ml whole human IgG. Cleared supernatants were collected and analyzed by ELISA for TNFα (n = 3).

IL-10; 

PubMed: 27792904     


LMP2A-negative (vector.1/.2) and -positive (express LMP2A) B cell lines were incubated in the absence or presence of increasing concentrations of Ibrutinib for 24 hours and supernatants were isolated for analysis using an IL-10 ELISA.

26627823 27792904
In vivo In a collagen-induced arthritis model, Ibrutinib significantly reduces clinical arthritis scores reflecting paw swelling and joint inflammation by inhibiting B-cell activation. In a MRL-Fas(lpr) lupus model, Ibrutinib reduces renal disease and autoantibody production. [1] In an adoptive transfer TCL1 mouse model of CLL, Ibrutinib (25 mg/kg/day) causes a transient early lymphocytosis, and delays CLL disease progression. [4]

Protocol

Kinase Assay:

[1]
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Kinase Assays :

In vitro kinase IC50 values are measured using 33P filtration binding assay after 1 hour incubation of kinase, 33P-ATP, Ibrutinib, and substrate [0.2 mg/mL poly(EY)(4:1]. Assays are performed at Reaction Biology.
Cell Research:

[2]
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  • Cell lines: Chronic lymphocytic leukemia (CLL) cells
  • Concentrations: 0.01-100 μM
  • Incubation Time: 48 hours
  • Method:

    MTT (3'[4,5-dimethylthiazol-2-yl]-2,5-diphenyl-tetrazolium bromide) assays are performed to determine cytotoxicity. Briefly, cells (CLL B cells or healthy volunteer T cells or NK cells) are incubated for 48 hours with different concentrations of Ibrutinib, or vehicle control. MTT reagent is then added, and plates are incubated for an additional 20 hours before washing with protamine sulfate in phosphate-buffered saline. Dimethyl sulfoxide is added, and absorbance is measured by spectrophotometry at 540 nm in a Labsystems plate reader. Cell viability is also measured at various time points with the use of annexin/PI flow cytometry. Data are analyzed with Expo-ADC32 software package. Results are expressed as the percentage of total positive cells over untreated control. Experiments examining caspase-dependent apoptosis includes the addition of 100μM Z-VAD.


    (Only for Reference)
Animal Research:

[1]
- Collapse
  • Animal Models: MRL-Fas(lpr) lupus model and collagen-induced arthritis model.
  • Formulation: Ibrutinib is dissolved in DMSO.
  • Dosages: ≤50 mg/kg
  • Administration: Administered via p.o.
    (Only for Reference)

Solubility (25°C)

In vitro DMSO 88 mg/mL (199.77 mM)
Ethanol 45 mg/mL (102.15 mM)
Water Insoluble
In vivo Add solvents to the product individually and in order(Data is from Selleck tests instead of citations):
5% DMSO+30% PEG 300+5% Tween 80+ddH2O
For best results, use promptly after mixing. 		10mg/mL

* Please note that Selleck tests the solubility of all compounds in-house, and the actual solubility may differ slightly from published values. This is normal and is due to slight batch-to-batch variations.

Chemical Information

Molecular Weight 440.5
Formula

C25H24N6O2
CAS No. 936563-96-1
Storage powder
in solvent
Synonyms N/A

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Clinical Trial Information

NCT Number Recruitment interventions Conditions Sponsor/Collaborators Start Date Phases
NCT04042376 Not yet recruiting Drug: Ibrutinib Waldenstrom Macroglobulinemia Janssen Research & Development LLC November 15 2019 Phase 4
NCT04115059 Not yet recruiting Drug: Dasatinib Waldenstrom Macroglobulinemia|DASATINIB Jorge J. Castillo MD|Bristol-Myers Squibb|Dana-Farber Cancer Institute November 2019 Phase 1
NCT03679624 Recruiting Drug: Ibrutinib|Drug: Daratumumab Waldenstrom Macroglobulinemia|Waldenstrom''s Disease|Waldenström; Hypergammaglobulinemia|Waldenstrom''s Macroglobulinemia Recurrent|Waldenstrom''s Macroglobulinemia of Lymph Nodes|Waldenstrom''s Macroglobulinaemia Without Mention of Remission|Waldenstrom''s Macroglobulinemia Refractory Weill Medical College of Cornell University|Janssen Scientific Affairs LLC|Mayo Clinic October 2019 Phase 2
NCT04062448 Not yet recruiting Drug: Ibrutinib|Drug: Rituximab Waldenstrom Macroglobulinemia Janssen Pharmaceutical K.K. September 11 2019 Phase 2
NCT03943342 Not yet recruiting Drug: Ibrutinib|Drug: Venetoclax Chronic Lymphocytic Leukemia|Loss of Chromosome 17p Kerry Rogers|National Cancer Institute (NCI)|Janssen Research & Development LLC|Ohio State University Comprehensive Cancer Center September 1 2019 Phase 2

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Answers to questions you may have can be found in the inhibitor handling instructions. Topics include how to prepare stock solutions, how to store inhibitors, and issues that need special attention for cell-based assays and animal experiments.

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Frequently Asked Questions

  • Question 1:

    How to reconstitute the compound S2680 for in vivo studies?

  • Answer:

    For in vivo study, we suggest to use 5% DMSO+30% PEG 300+5% Tween 80+ddH2O up to 10mg/ml.

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Cell Lines Assay Type Concentration Incubation Time Formulation Activity Description PMID