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PCI-34051

Name: PCI-34051
Brand: Selleck Chemicals
SKU: S2012
Rating: 5 (53 reviews)

Catalog No.S2012 Purity:99.79%

PCI-34051 is a potent and specific HDAC8 inhibitor with IC50 of 10 nM in a cell-free assay. It has greater than 200-fold selectivity over HDAC1 and 6, more than 1000-fold selectivity over HDAC2, 3, and 10. PCI-34051 induces caspase-dependent apoptosis.

PCI-34051 Chemical Structure

CAS No. 950762-95-5

Purity & Quality Control

Batch: Purity: 99.79%

99.79

PCI-34051 Related Products

Related Targets	HDAC1 HDAC2 HDAC3 HDAC4 HDAC5 HDAC6 HDAC7 HDAC8 HDAC9 HDAC10 HDAC11 HD1 HD2	Click to Expand
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Related Compound Libraries	Kinase Inhibitor Library FDA-approved Drug Library Natural Product Library Bioactive Compound Library-I Highly Selective Inhibitor Library	Click to Expand

Signaling Pathway

HDAC Signaling Pathway

Cell Data

Cell Lines	Assay Type	Concentration	Incubation Time	Activity Description	PMID
LAN1	Growth inhibition assay		72 hrs	Growth inhibition of human LAN1 cells incubated for 72 hrs by MTS assay, GI50=3.9μM	23116147
Jurkat	Growth inhibition assay		72 hrs	Growth inhibition of human Jurkat cells incubated for 72 hrs by MTS assay, GI50=11μM	23116147
NB-1	Growth inhibition assay		72 hrs	Growth inhibition of human NB-1 cells incubated for 72 hrs by MTS assay, GI50=14μM	23116147
MT2	Growth inhibition assay		72 hrs	Growth inhibition of human MT2 cells incubated for 72 hrs by MTS assay, GI50=15μM	23116147
MT4	Growth inhibition assay		72 hrs	Growth inhibition of human MT4 cells incubated for 72 hrs by MTS assay, GI50=25μM	23116147
Huh7	Antiviral assay		3 days	Antiviral activity against HCV genotype 1b infected in human Huh7 cells after 3 days by luciferase reporter gene assay, EC50=1.8μM	25490700
HuH7	Cytotoxicity assay		3 days	Cytotoxicity against human HuH7 cells assessed as inhibition of cell viability after 3 days by CellTiter 96 assay, CC50=11μM	25490700
Sf9	Function assay		5 mins	Inhibition of recombinant full-length human C-terminal FLAG-His-tagged HDAC1 expressed in baculovirus infected Sf9 insect cells using Boc-L-Lys(Ac)-AMC as substrate preincubated for 5 mins followed by substrate addition measured after 35 mins by fluoresce, IC50=3.8μM	28835796
Sf9	Function assay		5 mins	Inhibition of recombinant human full-length C-terminal His-tagged HDAC3 (395 to 489 residues)/human NCOR2 expressed in baculovirus infected Sf9 insect cells using Boc-L-Lys(Ac)-AMC as substrate pretreated for 5 mins followed by substrate addition measured, IC50=7.1μM	28835796
Sf9	Function assay		5 mins	Inhibition of recombinant human full-length C-terminal His-tagged HDAC2 expressed in baculovirus infected Sf9 insect cells using Boc-L-Lys(Ac)-AMC as substrate preincubated for 5 mins followed by substrate addition measured after 35 mins by fluorescence assay, IC50=31μM	28835796
SH-SY5Y	Cytotoxicity assay			Cytotoxicity against human SH-SY5Y cells expressing TP53 by CellTiter96 AQueous one solution cell proliferation assay	28835796
IMR5	Cytotoxicity assay			Cytotoxicity against human IMR5 cells expressing TP53 by CellTiter96 AQueous one solution cell proliferation assay	28835796
SK-N-AS	Cytotoxicity assay			Cytotoxicity against human SK-N-AS cells expressing TP53 mutation by CellTiter96 AQueous one solution cell proliferation assay	28835796
Kelly	Cytotoxicity assay			Cytotoxicity against human Kelly cells expressing TP53 mutation by CellTiter96 AQueous one solution cell proliferation assay	28835796
BE(2)-C	Cytotoxicity assay		72 hrs	Cytotoxicity against human BE(2)-C cells assessed as reduction in cell viability by measuring metabolic activity after 72 hrs by WST-8 assay, IC50=19.9μM	29190092
Sf9	Function assay		90 mins	Inhibition of recombinant human full length C-terminal FLAG-tagged HDAC1 expressed in fall armyworm Sf9 cells using fluorogenic ZMAL as substrate after 90 mins by fluorimetric analysis, IC50=28.3μM	29190092
Sf9	Function assay		90 mins	Inhibition of recombinant human full length HDAC6 expressed in fall armyworm Sf9 cells using fluorogenic ZMAL as substrate after 90 mins by fluorimetric analysis, IC50=48.2μM	29190092
BE(2)-C	Function assay	6 uM	72 hrs	Inhibition of HDAC8 in human BE(2)-C cells assessed as upregulation of p21/CDKN1 gene expression at 6 uM after 72 hrs by RT-PCR analysis relative to control	29190092
BE(2)-C	Function assay	6 uM	72 hrs	Inhibition of HDAC8 in human BE(2)-C cells assessed as upregulation of TrkA/NTRK1 gene expression at 6 uM after 72 hrs by RT-PCR analysis relative to control	29190092
BE(2)-C	Function assay	6 uM	72 hrs	Inhibition of HDAC8 in human BE(2)-C cells assessed as upregulation of TH gene expression at 6 uM after 72 hrs by RT-PCR analysis relative to control	29190092
BE(2)-C	Function assay	6 uM	6 days	Induction of outgrowth of neurofilament positive neutrite-like structures in human BE(2)-C cells at 6 uM after 6 days by DAPI-staining based microscopic analysis	29190092
A673	qHTS assay			qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Primary screen for A673 cells	29435139
SK-N-MC	qHTS assay			qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Primary screen for SK-N-MC cells	29435139
NB-EBc1	qHTS assay			qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Primary screen for NB-EBc1 cells	29435139
SK-N-SH	qHTS assay			qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Primary screen for SK-N-SH cells	29435139
NB1643	qHTS assay			qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Primary screen for NB1643 cells	29435139
LAN-5	qHTS assay			qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Primary screen for LAN-5 cells	29435139
Jurkat	Antiproliferative assay			Antiproliferative activity against human Jurkat cells by alamar blue assay, GI50=2.4μM	29505935
HUT78	Antiproliferative assay			Antiproliferative activity against human HUT78 cells by alamar blue assay, GI50=2.4μM	29505935
HSB2	Antiproliferative assay			Antiproliferative activity against human HSB2 cells by alamar blue assay, GI50=2.4μM	29505935
MOLT4	Antiproliferative assay			Antiproliferative activity against human MOLT4 cells by alamar blue assay, GI50=2.4μM	29505935
Jurkat	Antiproliferative assay		48 hrs	Antiproliferative activity against human Jurkat cells after 48 hrs by MTT assay, IC50=4.5μM	29533873
MOLT4	Antiproliferative assay		48 hrs	Antiproliferative activity against human MOLT4 cells after 48 hrs by MTT assay, IC50=9.4μM	29533873
HEL	Antiproliferative assay		48 hrs	Antiproliferative activity against human HEL cells after 48 hrs by MTT assay, IC50=10.8μM	29533873
SK-N-BE(2)	Antiproliferative assay		48 hrs	Antiproliferative activity against human SK-N-BE(2) cells after 48 hrs by MTT assay, IC50=16.9μM	29533873
PC3	Antiproliferative assay		48 hrs	Antiproliferative activity against human PC3 cells after 48 hrs by MTT assay, IC50=19.2μM	29533873
K562	Antiproliferative assay		72 hrs	Antiproliferative activity against human K562 cells after 72 hrs by MTS assay, GI50=2.01μM	30004697
K562R	Antiproliferative assay		72 hrs	Antiproliferative activity against human K562R cells after 72 hrs by MTS assay, GI50=2.2μM	30004697
HCT116	Antiproliferative assay		72 hrs	Antiproliferative activity against human HCT116 cells after 72 hrs by MTS assay, GI50=2.64μM	30004697
PC3	Antiproliferative assay		72 hrs	Antiproliferative activity against human PC3 cells after 72 hrs by MTS assay, GI50=2.66μM	30004697
MCF7	Antiproliferative assay		72 hrs	Antiproliferative activity against human MCF7 cells after 72 hrs by MTS assay, GI50=2.97μM	30004697
BL21 (DE3)	Function assay			Binding affinity to human His-thioredoxin-tagged HDAC8 expressed in Escherichia coli BL21 (DE3) cells by ITC method, Kd=0.0751μM	30347148
BL21 (DE3)	Function assay			Inhibition of human His-thioredoxin-tagged HDAC8 expressed in Escherichia coli BL21 (DE3) cells using Fluor de Lys (R)-HDAC8 as substrate by fluorometric method, IC50=0.0777μM	30347148
BL21 (DE3)	Function assay			Binding affinity to Schistosoma mansoni His-tagged HDAC8 expressed in Escherichia coli BL21 (DE3) cells by ITC method, Kd=0.367μM	30347148
BL21 (DE3)	Function assay			Inhibition of Schistosoma mansoni His-tagged HDAC8 expressed in Escherichia coli BL21 (DE3) cells using Fluor de Lys (R)-HDAC8 as substrate by fluorometric method, IC50=0.4358μM	30347148
BL21 (DE3)	Function assay			Inhibition of human His-thioredoxin-tagged HDAC8 mL6/L179I mutant expressed in Escherichia coli BL21 (DE3) cells using Fluor de Lys (R)-HDAC8 as substrate by fluorometric method, IC50=1μM	30347148
BL21 (DE3)	Function assay			Inhibition of human His-thioredoxin-tagged HDAC8 mL6 mutant expressed in Escherichia coli BL21 (DE3) cells using Fluor de Lys (R)-HDAC8 as substrate by fluorometric method, IC50=1.63μM	30347148
BL21 (DE3)	Function assay			Inhibition of human His-thioredoxin-tagged HDAC8 mL1/mL6 mutant expressed in Escherichia coli BL21 (DE3) cells using Fluor de Lys (R)-HDAC8 as substrate by fluorometric method, IC50=2.7μM	30347148
BL21 (DE3)	Function assay			Inhibition of human His-thioredoxin-tagged HDAC8 mL1/mL6/L179I mutant expressed in Escherichia coli BL21 (DE3) cells using Fluor de Lys (R)-HDAC8 as substrate by fluorometric method, IC50=5μM	30347148
Sf9	Function assay			Inhibition of C-terminal FLAG/His-tagged full length human HDAC1 expressed in baculovirus infected Sf9 insect cells using Z(Ac)Lys-AMC as substrate by fluorometric method, IC50=28.3μM	30347148
Sf9	Function assay			Inhibition of N-terminal GST-tagged full length human HDAC6 expressed in baculovirus infected Sf9 insect cells using Z(Ac)Lys-AMC as substrate by fluorometric method, IC50=48.2μM	30347148
Sf9	Function assay		40 mins	Inhibition of recombinant human full length C-terminal His-tagged HDAC8 expressed in baculovirus infected insect cells measured after 40 mins by HDAC-Glo1/2 luminescent assay, IC50=0.03162μM	30964290
SK-N-BE(2)C	Anticlonogenic assay		96 hrs	Anticlonogenic activity in human SK-N-BE(2)C cells assessed as reduction in cell proliferation incubated for 96 hrs by crystal violet staining based assay, GI50=15μM	31630054
Click to View More Cell Line Experimental Data

Biological Activity

Description

Targets

HDAC8 ^[1]
(Cell-free assay)

10 nM

In vitro
In vitro	PCI-34051 possesses promising potency for HDAC8 with a K_i of 10 nM. PCI-34051 has high selectivity (approximately fivefold) for HDAC8 relative to the other class I HDACs including HDAC1. PCI-34051 reveals greater than 200-fold selectivity over HDAC1 and HDAC6, and greater than 1000-fold selectivity over HDAC2, HDAC3 and HDAC10. PCI-34051 inhibits ovarian tumor line OVCAR-3 with a GI50 of 6 μM and 15% cell death. Neither significant tubulin nor histone acetylation is observed in the sensitive cell lines treated with PCI-34051 at concentrations less than 25 μM at 24 hours nor at earlier timepoints. PCI-34051 induces a selective cytotoxic effect in cell lines derived only from T-cell malignancies. PCI-34051 induces caspase-dependent apoptosis. When caspase-3 activity is measured at various times after treatment with 5 μM PCI-34051, increasing levels of activity are observed from 12 to 24 to 48 hours, another hallmark of apoptosis, consistent with the higher levels of caspase activity at this timepoint. PCI-34051 does not stimulate Bid cleavage, a characteristic effect of the extrinsic apoptotic pathway. While P116 and J.RT3-T.5 are sensitive to PCI-34051, the PLCγ1-deficient J.gamma1 line reveals a marked decrease in the extent of PCI-34051-induced apoptosis. In addition, steady-state calcium levels strongly influence the apoptosis induced by PCI-34051. PCI-34051 induces cytochrome c release from mitochondria.^[1]
Kinase Assay	Histone deacetylase activity
Kinase Assay	For PCI-34051 characterization, measurements are perfomed in a reaction volume of 100 μL using 96-well assay plates in a fluorescence plate reader. For each isozyme. The HDAC protein in reaction buffer (50 mM HEPES, 100 mM KCl, 0.001% Tween-20, 5% dimethyl sulfoxide, pH7.4, supplemented with bovine serum albumin at concentrations of 0-0.05%) is mixed with PCI-34051 at various concentrations and allowed to incubate for 15 min. Trysin is added to a final concentration of 50 nM, and acetyl-gly-Ala-(N-acetyl-Lys)-amino-4-methylcoumarin is added to a final concentration of 25-100 μM to initiate the reaction. After a 30 min lag time, the fluorescence is measured over a 30 min time frame using an excitation wavelength of 335 nm and a detection wavelength of 460 nm. The increase in fluorescence wih time is used as the measure of the reaction rate.
Cell Research	Cell lines	A549 cell line, Ovcar-3 cell line
	Concentrations	5 μM
	Incubation Time	24 hours
	Method	Tumor cell lines and human umbilical vein endothelial cells are cultured for at least two doubling times, and growth is monitored at the end of PCI-34051 exposure using an Alamar Blue fluorometric cell proliferation assay as recommended by the manufacturer. PCI-34051 is assayed in triplicate wells in 96-well plates. The concentration required to inhibit cell growth by 50% (GI50) and 95% confidence intervals are estimated from nonlinear regression using a four-parameter logistic equation.
Experimental Result Images	Methods	Biomarkers	Images	PMID
Experimental Result Images	Immunofluorescence	SMC3 / Ac-SMC3		27072133

In Vivo
In vivo	PCI-34051 is a potent and specific HDAC8 inhibitor.
Animal Research	Animal Models	Male C57BL/6 and BALB/c mice
	Dosages	40 mg/kg
	Administration	i.p.

References

Chemical Information & Solubility

Molecular Weight	296.32	Formula	C₁₇H₁₆N₂O₃
CAS No.	950762-95-5	SDF	Download PCI-34051 SDF
Smiles	COC1=CC=C(C=C1)CN2C=CC3=C2C=C(C=C3)C(=O)NO
Storage (From the date of receipt)	3 years-20°Cpowder	Storage of Stock Solutions Aliquot the stock solutions to avoid repeated freeze-thaw cycles	1 year-80°Cin solvent
Storage (From the date of receipt)	3 years-20°Cpowder		1 month-20°Cin solvent

In vitro
Batch:

DMSO : 59 mg/mL ( (199.1 mM) Moisture-absorbing DMSO reduces solubility. Please use fresh DMSO.)

Water : Insoluble

Ethanol : Insoluble

Molecular Weight Calculator

In vivo Batch: Add solvents to the product individually and in order.				In vivo Formulation Calculator
Homogeneous suspension	CMC-NA	≥5mg/ml	Taking the 1 mL working solution as an example, add 5 mg of this product to 1 ml of CMC-Na solution, mix evenly to obtain a homogeneous suspension with a final concentration of 5 mg/ml.
Homogeneous suspension	CMC-NA	≥5mg/ml	Taking the 1 mL working solution as an example, add 5 mg of this product to 1 ml of CMC-Na solution, mix evenly to obtain a homogeneous suspension with a final concentration of 5 mg/ml.
Homogeneous suspension	CMC-NA	≥5mg/ml	Taking the 1 mL working solution as an example, add 5 mg of this product to 1 ml of CMC-Na solution, mix evenly to obtain a homogeneous suspension with a final concentration of 5 mg/ml.
Clear solution	5%DMSO 1 40%PEG300 2 5%Tween80 3 50%ddH2O Validated by Selleck labs. Should you need adjustments to this formulation, contact our sales team for custom testing.	5.000mg/ml (16.87mM)	Taking the 1 mL working solution as an example, add 50 μL of 100 mg/ml clarified DMSO stock solution to 400 μL of PEG300, mix evenly to clarify it; add 50 μL of Tween80 to the above system, mix evenly to make it clear; then continue to add 500 μL of ddH2O to adjust the volume to 1 mL. The mixed solution should be used immediately for optimal results.
Homogeneous suspension	CMC-NA	≥5mg/ml	Taking the 1 mL working solution as an example, add 5 mg of this product to 1 ml of CMC-Na solution, mix evenly to obtain a homogeneous suspension with a final concentration of 5 mg/ml.

Preparing Stock Solutions

Molarity Calculator

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In vivo Formulation Calculator (Clear solution)

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Tech Support

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.

Handling Instructions

Tel: +1-832-582-8158 Ext:3
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