Home PI3K/Akt/mTOR PI3K inhibitor TGX-221 For research use only.

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.

TGX-221 Chemical Structure

TGX-221 Chemical Structure

CAS No. 663619-89-4

Purity & Quality Control

TGX-221 Related Products

Signaling Pathway

PI3K Signaling Pathways

PI3K Signaling Pathway

Cell Data

Cell Lines Assay Type Concentration Incubation Time Formulation Activity Description PMID
HUVECs Function Assay 500 nM 1 h DMSO reduces Akt phosphorylation 22814170
DU145 Growth Inhibition Assay IC50=35.6 ± 0.12 μM 22494444
PC3 Growth Inhibition Assay IC50=18.2 ± 0.85 μM 22494444
LNCaP Growth Inhibition Assay IC50=3.98 ± 0.18 μM 22494444
Click to View More Cell Line Experimental Data

Biological Activity

Description 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.
Targets
p110β [5]
(Cell-free assay)		 p110δ [5]
(Cell-free assay)
5 nM 0.1 μM
In vitro
In vitro The activity of TGX-221 against different isoforms is measured in an in vitro PI3K assay using multiple preparations of recombinant p85/p110. TGX-221 show slow potent to p110δ with IC50 of 211 nM. Furthermore, TGX-221 partially attenuates insulin-induced phosphorylation of Ser473 of PKB in J774.2 macrophage cells. [1] TGX-221 inhibits platelet-ECC interaction, platelet aggregation and platelet-granulocyte binding in an extracorporeal circulation (ECC) model. [2] A recent study shows that after treatment with TGX-221 (0.2, 2, and 20 μM), PC3 cells show inhibition of proliferation with a significant reduction of the activity of the p110β PI3K isoform. [3]
Kinase Assay Lipid kinase activity
IC50 values are measured using a standard lipid kinase activity with PI as a substrate. (i)100 μM cold ATP is used instead of 10 μM, (ii) the DMSO concentration is 1%, and (iii) [γ-33P]ATP is used instead of [γ-32P]ATP. The TLC plates are quantified using a phosphorimager screen. The reported IC50 values are determined by non-linear regression analysis on the basis of at least three independent experiments repeated across multiple preparations of recombinant protein.
Cell Research Cell lines PC3 cells
Concentrations ~20 μM
Incubation Time 24-72 hours
Method For measurement of proliferation, cells are seeded in triplicate in 96-well culture plates and incubated overnight to allow cell attachment. The cells are incubated with TGX-221 for 24, 48, and 72 hours. At designated time intervals, cells are quantified by a crystal violet staining-based colorimetric assay. Briefly, cells are fixed by addition of 100 μl of 2.5% glutaraldehyde solution and incubated at room temperature for 30 minutes. Plates are washed three times by submersion in PBS solution. Plates are air-dried and stained by addition of 100 μL of 0.1% solution of crystal violet dissolved in deionized water and incubated for 20 minutes at room temperature, excess dye is removed by extensive washing with deionized water, and plates are air-dried prior to bound dye solubilization in 100 μL of 10% acetic acid. The optical density of dye extracts is measured directly in plates using a microplate reader at 570 nm.
Experimental Result Images Methods Biomarkers Images PMID
Growth inhibition assay Cell viability 27176481
Western blot p-AKT / AKT phospho-Zyxin / Zyxin / p-FAK / FAK 27176481
In Vivo
In vivo As an anti-thrombotic agent, TGX-221 at doses 1 + 1 (49 %) and 3+3 (88 %) improves integrated blood flow over 30 minutes in a mouse model. In addition, Tail bleeding time (BT) (sec) increases with TGX-221 doses of 3 + 3 (median 1560) and 1 + 1 (1305) and mean renal BT (sec) also increases in all TGX-221 groups. [4]
Animal Research Animal Models FeCl3-induced arterial thrombosis in mice
Dosages 0.3 + 0.3, 1 + 1, 3 + 3 mg/kg + mg/kg/hour
Administration Administered via i.v.

Chemical Information & Solubility

Molecular Weight 364.44 Formula

C21H24N4O2
CAS No. 663619-89-4 SDF Download TGX-221 SDF
Smiles CC1=CN2C(=O)C=C(N=C2C(=C1)C(C)NC3=CC=CC=C3)N4CCOCC4
Storage (From the date of receipt)

In vitro
Batch:

DMSO : 12 mg/mL ( (32.92 mM) Moisture-absorbing DMSO reduces solubility. Please use fresh DMSO.)

Water : Insoluble

Ethanol : Insoluble


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In vivo
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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

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