Allitinib (AST-1306)

Catalog No.S2185 Synonyms: AST-6

For research use only.

Allitinib (AST-1306, AST-6) is a novel irreversible inhibitor of EGFR and ErbB2 with IC50 of 0.5 nM and 3 nM, also effective in mutation EGFR T790M/L858R, more potent to ErbB2-overexpressing cells, 3000-fold selective for ErbB family than other kinases.

Allitinib (AST-1306) Chemical Structure

CAS No. 1050500-29-2

Selleck's Allitinib (AST-1306) has been cited by 13 publications

Purity & Quality Control

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Biological Activity

Description Allitinib (AST-1306, AST-6) is a novel irreversible inhibitor of EGFR and ErbB2 with IC50 of 0.5 nM and 3 nM, also effective in mutation EGFR T790M/L858R, more potent to ErbB2-overexpressing cells, 3000-fold selective for ErbB family than other kinases.
Targets
EGFR [1]
(Cell-free assay)
ErbB4 [1]
(Cell-free assay)
ErbB2 [1]
(Cell-free assay)
EGFR (T790M/L858R) [1]
(Cell-free assay)
0.5 nM 0.8 nM 3.0 nM 12 nM
In vitro

AST-1306 also ErB2 and EGFR T790M/L858R double mutant. AST-1306 is approximately 500-fold more potent than lapatinib and more than 3000-fold selective for ErbB family kinases over other kinase families including PDGFR, KDR and c-Met. AST-1306 might covalently bind to specific amino acid residues of EGFR and ErbB2. AST-1306 acts in a concentration dependent manner to significantly inhibit the growth of HIH3T3-EGFR T790M/L858R cells. AST-1306 effectively suppresses EGFR phosphorylation in HIH3T3-EGFR T790M/L858R cells. Moreover, AST-1306 blocks the growth of NCI-H1975 cells that harbor the EGFR T790M/L858R mutation in a concentration-dependent manner. AST-1306 blocks phosphorylation of EGFR and downstream pathways as well. In addition, AST-1306 dose-dependently and markedly inhibits EGF-induced EGFR phosphorylation in A549 cells. AST-1306 inhibits the phosphorylation of EGFR and ErbB2, and downstream signaling in human cancer cells including A549 cells, Calu-3 cells and SK-OV-3 cells. [1]

Cell Data
Cell Lines Assay Type Concentration Incubation Time Formulation Activity Description PMID
A431 cells  M1\NTHBzd2yrZnXyZZRqd25iYYPzZZk> M1\tO|czKGh? NGnmb5pCdnSrcILvcIln\XKjdHn2[UBi[3Srdnn0fUBi\2GrboP0JIh2dWGwIFG0N|Eh[2WubIOgc5Zmei2neIDy[ZN{cW6pIFXHSnIh\2WwZTDh[pRmeiB5MjDodpMh[nliU2LCJIF{e2G7LDDJR|UxRTBwMjFOwG0> NGHJ[2c9[SC2YYLn[ZQ:L1:kbHHub{chcHKnZk2nbJR1eHN8Lz;weYJu\WRwbnPibU5vdG1wbnnoModwfi9{MkKyO|IyPCd-MkKyNlczOTR:L3G+
NCI-H1975 cells MXTQdo9tcW[ncnH0bY9vKGG|c3H5 NWrKZWtIPzJiaB?= MlztRY51cXC{b3zp[oVz[XSrdnWgZYN1cX[rdImgZYdicW6|dDDoeY1idiCQQ1mtTFE6PzViY3XscJMhd3[ncj3lfJBz\XO|aX7nJGVITlJibYX0ZY51KGenbnWgZYZ1\XJiN{KgbJJ{KGK7IGPSRkBie3OjeTygTWM2OD1yLkeg{txO M4r0eVxiKHSjcnfleF0oZ2KuYX7rK{BpemWoPTfoeJRxezpxL4D1Zo1m\C6wY3LpMo5tdS6waXiu[493NzJ{MkK3NlE1Lz5{MkKyO|IyPDxxYU6=
A549 cells MnjtVJJwdGmoZYLheIlwdiCjc4PhfS=> NVnKRnV3PzJiaB?= NVjm[JlySW62aYDyc4xq\mW{YYTpeoUh[WO2aY\peJkh[WejaX7zeEBpfW2jbjDBOVQ6KGOnbHzzJI93\XJvZYjwdoV{e2mwZzDFS2ZTKGenbnWgZYZ1\XJiN{KgbJJ{KGK7IGPSRkBie3OjeTygTWM2OD14Lkig{txO M3vrdVxiKHSjcnfleF0oZ2KuYX7rK{BpemWoPTfoeJRxezpxL4D1Zo1m\C6wY3LpMo5tdS6waXiu[493NzJ{MkK3NlE1Lz5{MkKyO|IyPDxxYU6=
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BT-12 NICwRYpyUFSVIHHzd4F6 NWn0PYM6eUiWUzDv[kBx\WSrYYTybYMh[2GwY3XyJINmdGxibHnu[ZMhfG9iaXTlcpRq\nlibYXseIlxdGVib4Dwc5J1fW6rdHnld{Bnd3JiZIL1[{Bz\XC3coDvd4lv\zpiUILpcYFzgSC|Y4Ll[Y4h\m:{IFLUMVEzKGOnbHzz NVHLWHE3RGFidHHy[4V1RSehYnzhcosoKGi{ZX[9K4h1fHC|Oj:vdJVjdWWmLn7jZokvdmyvLn7pbE5od3ZxMkm0N|UyOzlpPkK5OFM2OTN7PD;hQi=>
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BT-37 Mkf1dWhVWyCjc4PhfS=> MnGydWhVWyCxZjDw[YRq[XS{aXOgZ4Fv[2W{IHPlcIwhdGmwZYOgeI8hcWSnboTp[pkhdXWudHnwcIUhd3Cyb4L0eY5qfGmnczDmc5Ih\HK3ZzDy[ZB2enCxc3nu[|ohS2:wZnnycYF1d3K7IIPjdoVmdiCob4KgRnQuOzdiY3XscJM> NXXQfYloRGFidHHy[4V1RSehYnzhcosoKGi{ZX[9K4h1fHC|Oj:vdJVjdWWmLn7jZokvdmyvLn7pbE5od3ZxMkm0N|UyOzlpPkK5OFM2OTN7PD;hQi=>
TC32 NGfj[odyUFSVIHHzd4F6 NWXHXodDeUiWUzDv[kBx\WSrYYTybYMh[2GwY3XyJINmdGxibHnu[ZMhfG9iaXTlcpRq\nlibYXseIlxdGVib4Dwc5J1fW6rdHnld{Bnd3JiZIL1[{Bz\XC3coDvd4lv\zpiQ3;u[olzdWG2b4L5JJNkemWnbjDmc5IhXEN|MjDj[Yxtew>? NIjDVJI9[SC2YYLn[ZQ:L1:kbHHub{chcHKnZk2nbJR1eHN8Lz;weYJu\WRwbnPibU5vdG1wbnnoModwfi9{OUSzOVE{QSd-Mkm0N|UyOzl:L3G+
MG 63 (6-TG R) NYXMVnBYeUiWUzDhd5NigQ>? NETtcHZyUFSVIH;mJJBm\GmjdILpZ{Bk[W6lZYKgZ4VtdCCuaX7ld{B1dyCrZHXueIlngSCvdXz0bZBt\SCxcIDvdpR2dmm2aXXzJIZweiCmcoXnJJJmeHW{cH;zbY5oQiCFb37mbZJu[XSxcomgd4Nz\WWwIH\vdkBOTyB4MzCoOk1VTyCUKTDj[Yxtew>? MmHLQIEhfGG{Z3X0QUdg[myjbnunJIhz\WZ;J3j0eJB{Qi9xcIXicYVlNm6lYnmucoxuNm6raD7nc5YwOjl2M{WxN|koRjJ7NEO1NVM6RC:jPh?=
Rh41 M3n0U5FJXFNiYYPzZZk> MnPQdWhVWyCxZjDw[YRq[XS{aXOgZ4Fv[2W{IHPlcIwhdGmwZYOgeI8hcWSnboTp[pkhdXWudHnwcIUhd3Cyb4L0eY5qfGmnczDmc5Ih\HK3ZzDy[ZB2enCxc3nu[|ohS2:wZnnycYF1d3K7IIPjdoVmdiCob4KgVog1OSClZXzsdy=> Mm\qQIEhfGG{Z3X0QUdg[myjbnunJIhz\WZ;J3j0eJB{Qi9xcIXicYVlNm6lYnmucoxuNm6raD7nc5YwOjl2M{WxN|koRjJ7NEO1NVM6RC:jPh?=
RD NWP3W2JUeUiWUzDhd5NigQ>? NYTUW5JEeUiWUzDv[kBx\WSrYYTybYMh[2GwY3XyJINmdGxibHnu[ZMhfG9iaXTlcpRq\nlibYXseIlxdGVib4Dwc5J1fW6rdHnld{Bnd3JiZIL1[{Bz\XC3coDvd4lv\zpiQ3;u[olzdWG2b4L5JJNkemWnbjDmc5IhWkRiY3XscJM> NVrqPWx5RGFidHHy[4V1RSehYnzhcosoKGi{ZX[9K4h1fHC|Oj:vdJVjdWWmLn7jZokvdmyvLn7pbE5od3ZxMkm0N|UyOzlpPkK5OFM2OTN7PD;hQi=>
Rh18 NX\QO2xxeUiWUzDhd5NigQ>? NXL3WGJbeUiWUzDv[kBx\WSrYYTybYMh[2GwY3XyJINmdGxibHnu[ZMhfG9iaXTlcpRq\nlibYXseIlxdGVib4Dwc5J1fW6rdHnld{Bnd3JiZIL1[{Bz\XC3coDvd4lv\zpiQ3;u[olzdWG2b4L5JJNkemWnbjDmc5IhWmhzODDj[Yxtew>? Mn7MQIEhfGG{Z3X0QUdg[myjbnunJIhz\WZ;J3j0eJB{Qi9xcIXicYVlNm6lYnmucoxuNm6raD7nc5YwOjl2M{WxN|koRjJ7NEO1NVM6RC:jPh?=
Saos-2 MV;xTHRUKGG|c3H5 MVjxTHRUKG:oIIDl[IlifHKrYzDjZY5k\XJiY3XscEBtcW6nczD0c{Bq\GWwdHnmfUBufWy2aYDs[UBweHCxcoT1col1cWW|IH\vdkBlenWpIILldJVzeG:|aX7nPkBEd26oaYLtZZRwenlic3Py[YVvKG[xcjDTZY9{NTJiY3XscJM> M{C3[FxiKHSjcnfleF0oZ2KuYX7rK{BpemWoPTfoeJRxezpxL4D1Zo1m\C6wY3LpMo5tdS6waXiu[493NzJ7NEO1NVM6Lz5{OUSzOVE{QTxxYU6=
OHS-50 NGXmb3JyUFSVIHHzd4F6 M3vERZFJXFNib3[gdIVlcWG2cnnjJINidmOncjDj[YxtKGyrbnXzJJRwKGmmZX70bYZ6KG23bITpdIxmKG:ycH;yeJVvcXSrZYOg[o9zKGS{dXegdoVxfXKyb4Ppcoc7KEOxbn\pdo1ifG:{eTDzZ5Jm\W5iZn;yJG9JWy13MDDj[Yxtew>? MVq8ZUB1[XKpZYS9K39jdGGwazegbJJm\j1paIT0dJM7Ny:ydXLt[YQvdmOkaT7ucI0vdmmqLnfvek8zQTR|NUGzPUc,Ojl2M{WxN|k9N2F-
SK-N-SH NHPWdlByUFSVIHHzd4F6 M1uwZ5FJXFNib3[gdIVlcWG2cnnjJINidmOncjDj[YxtKGyrbnXzJJRwKGmmZX70bYZ6KG23bITpdIxmKG:ycH;yeJVvcXSrZYOg[o9zKGS{dXegdoVxfXKyb4Ppcoc7KEOxbn\pdo1ifG:{eTDzZ5Jm\W5iZn;yJHNMNU5vU1igZ4VtdHN? NIDBV2s9[SC2YYLn[ZQ:L1:kbHHub{chcHKnZk2nbJR1eHN8Lz;weYJu\WRwbnPibU5vdG1wbnnoModwfi9{OUSzOVE{QSd-Mkm0N|UyOzl:L3G+
In vivo Twice daily oral administration of AST-1306 gives rise to a dramatic prevention of tumor growth in SK-OV-3 and Calu-3 xenograft models. In SK-OV-3 models, tumors nearly disappears after treatment with AST-1306 for 7 days. In contrast, AST-1306 only slightly inhibits the growth of tumor in HO-8910 and A549 xenograft models. Therefore, the antitumor efficacy of AST-1306 is greater in ErbB2-overexpressing tumor models than in models expressing low levels of ErbB2. AST-1306 is well tolerated. Lapatinib displays antitumor activity in these ErbB2-overexpressing tumor models, but AST-1306 is more efficacious than lapatinib in the SK-OV-3 xenograft tumor model when given at the same dose and schedule. In addition, oral administration of AST-1306 twice daily for 3 weeks dramatically suppresses the growth of tumor in the FVB-2/Nneu models. After treatment for 11 days, tumors almost completely disappears. The body weights of the mice reduces by less than 20% during treatment. [1]

Protocol (from reference)

Kinase Assay:[1]
  • Tyrosine kinase assays:

    The tyrosine kinase activities are determined in 96-well ELISA plates precoated with 20 μg/mL Poly (Glu,Tyr)4:1. First, 80 μL of 5 μM ATP solution diluted in kinase reaction buffer (50 mM HEPES pH 7.4, 20 mM MgCl2, 0.1 mM MnCl2, 0.2 mM Na3VO4, 1 mM DTT) is added to each well. Various concentrations of AST-1306 diluted in 10 μL of 1% DMSO (v/v) are then added to each reaction well, with 1% DMSO (v/v) used as the negative control. Subsequently, the kinase reaction is initiated by the addition of purified tyrosine kinase proteins diluted in 10 μL of kinase reaction buffer solution. Experiments at each concentration are performed in duplicate. After incubation for 60 min at 37 °C, the plate is washed three times with phosphate buffered saline (PBS) containing 0.1% Tween 20 (T-PBS). Next, 100 μL anti-phosphotyrosine antibody (PY99, 1:500 dilution) diluted in T-PBS containing 5 mg/mL BSA is added. After 30 min incubation at 37 °C, the plate is washed three times as before. Horseradish peroxidase-conjugated goat anti-mouse IgG (100 μL) diluted 1:2000 in T-PBS containing 5 mg/mL BSA is added. The plate is reincubated at 37 °C for 30 min, and then washed with PBS. Finally, 100 μL of a solution containing 0.03 % H2O2 and 2 mg/mL o-phenylenediamine in 0.1 M citrate buffer, pH 5.5, is added and samples are incubated at room temperature until color emerged. The reaction is terminated by the addition of 50 μL of 2 M H2SO4, and the plate is read using a multi-well spectrophotometer at 490 nm. The inhibition rate (%) is calculated using the following equation: [1-(A490 treated /A490 control)] ×100%. IC50 values are determined from the results of at least three independent tests and calculated by Logit method.

Cell Research:[1]
  • Cell lines: Calu-3 and A-549 cell lines
  • Concentrations: 0.001-1 μM
  • Incubation Time: 72 hours
  • Method: Cell (including Calu-3, A-549 cell line et al.) proliferation is evaluated using the SRB (Sulforhodamine B) assay. Briefly, cells are seeded into 96-well plates and grown for 24 hours. The cells are then treated with increasing concentrations of AST-1306 and grown for a further 72 hours. The medium remains unchanged until the completion of the experiment. The cells are then fixed with 10% precooled trichloroacetic acid (TCA) for 1 hour at 4 °C and stained for 15 min at room temperature with 100 μL of 4 mg/mL SRB solution in 1% acetic acid. The SRB is then removed, and the cells are quickly rinsed five times with 1% acetic acid. After cells are air-dried, protein-bound dye is dissolved in 150 μL of 10 mM Tris base for 5 min and measured at 515 nm using a multiwell spectrophotometer. The inhibition rate on cell proliferation is calculated as (1 - A515 treated/A515 control) × 100%. The IC50 value is obtained by the Logit method and is determined from the results of at least 3 independent tests.
Animal Research:[1]
  • Animal Models: Nude mice bearing SK-OV-3 xenograft tumors and SK-OV-3FVB-2/Nneu transgenic mouse
  • Dosages: 25 mg/kg, 50 mg/kg and 100 mg/kg
  • Administration: p.o., twice daily

Solubility (25°C)

In vitro

DMSO 124 mg/mL
(199.65 mM)
Water Insoluble
Ethanol Insoluble

In vivo

Add solvents to the product individually and in order
(Data is from Selleck tests instead of citations):
0.5% hydroxyethyl cellulose
For best results, use promptly after mixing.

30 mg/mL

Chemical Information

Molecular Weight 621.08
Formula

C24H18ClFN4O2,C7H8O3S

CAS No. 1050500-29-2
Storage 3 years -20°C powder
2 years -80°C in solvent
Smiles CC1=CC=C(C=C1)S(=O)(=O)O.C=CC(=O)NC1=CC2=C(C=C1)N=CN=C2NC3=CC(=C(C=C3)OCC4=CC(=CC=C4)F)Cl

In vivo Formulation Calculator (Clear solution)

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Method for preparing in vivo formulation: Take μL DMSO master liquid, next addμL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O, mix and clarify.

Method for preparing in vivo formulation: Take μL DMSO master liquid, next add μL Corn oil, mix and clarify.

Note: 1. Please make sure the liquid is clear before adding the next solvent.
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Molarity Calculator

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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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