Home>>Signaling Pathways>> Immunology/Inflammation>> Galectin>>OTX008

OTX008 (Synonyms: Calixarene 0118, PTX008)

Catalog No.GC18756 Copy One-Click Copy Product Info

OTX008 is a selective inhibitor of galectin-1.

Products are for research use only. Not for human use. We do not sell to patients.

OTX008 Chemical Structure

Cas No.: 286936-40-1

Size Price Stock Qty
10mM (in 1mL DMSO)
$183.00
In stock
1mg
$60.00
In stock
5mg
$116.00
In stock
10mg
$177.00
In stock
25mg
$301.00
In stock

Tel:(909) 407-4943 Email: sales@glpbio.com


Customer Reviews

Based on customer reviews.

Sample solution is provided at 25 µL, 10mM.



Description of OTX008

OTX008 is a selective inhibitor of galectin-1 [1]. OTX008 specifically binds to the β-pleated folded domain of Gal-1, inducing oxidation and proteasomal degradation, thereby inhibiting tumor cell proliferation, invasion, and angiogenesis [2]. OTX008 is indicated for the treatment of various solid tumors [3-4].

In ARPE-19 cells, OTX008 (2.5-10µM; 4h) treatment significantly increased cell viability in high glucose [5]. In OSSC cells, OTX008 (12.5-100μg/mL; 24-72h) reduces cell viability in a dose-dependent manner [6].

In SQ20B cells xenograft mice model, OTX008 (10mg/kg; ip; 21d) inhibits tumor growth [7]. In 293FT cells xenograft mice model, OTX008 (3mg/kg; ip; 3d) inhibits tumor growth [8].

References:
[1]. Astorgues-Xerri L, Riveiro M E, Tijeras-Raballand A, et al. OTX008, a selective small-molecule inhibitor of galectin-1, downregulates cancer cell proliferation, invasion and tumour angiogenesis[J]. European journal of cancer, 2014, 50(14): 2463-2477.
[2]. Delord J P, Awada A, Raymond E, et al. Abstract A72: A first-in-man Phase I study of the galectin-1 (gal-1) inhibitor OTX008 given subcutaneously as a single agent to patients with advanced solid tumors[J]. Molecular Cancer Therapeutics, 2013, 12(11_Supplement): A72-A72.
[3]. Zucchetti M, Bonezzi K, Frapolli R, et al. Pharmacokinetics and antineoplastic activity of galectin-1-targeting OTX008 in combination with sunitinib[J]. Cancer chemotherapy and pharmacology, 2013, 72(4): 879-887.
[4]. Rezai K, Durand S, Lachaux N, et al. OTX008 pharmacokinetics (PK) during the first-in-man phase I study in patients with advanced solid tumors[J]. Cancer Research, 2013, 73(8_Supplement): 33-33.
[5]. Trotta M C, Petrillo F, Gesualdo C, et al. Effects of the Calix [4] arene derivative compound OTX008 on high glucose-stimulated ARPE-19 cells: Focus on galectin-1/TGF-β/EMT pathway[J]. Molecules, 2022, 27(15): 4785.
[6]. Greer P. Effects of OTX008, a galectin-1 inhibitor, on oral squamous cell carcinoma cells in vitro[D]. University of Otago, 2018.
[7]. Koonce N A, Griffin R J, Dings R P M. Galectin-1 inhibitor OTX008 induces tumor vessel normalization and tumor growth inhibition in human head and neck squamous cell carcinoma models[J]. International journal of molecular sciences, 2017, 18(12): 2671.
[8]. Leung Z, Ko F C F, Tey S K, et al. Galectin-1 promotes hepatocellular carcinoma and the combined therapeutic effect of OTX008 galectin-1 inhibitor and sorafenib in tumor cells[J]. Journal of Experimental & Clinical Cancer Research, 2019, 38(1): 423.

Protocol of OTX008

Cell experiment [1]:

Cell lines

ARPE-19 cells

Preparation Method

Human ARPE-19 cells were cultured in Dulbecco's Modified Eagle Medium/Nutrient Mixture F12 (DMEM/F12) at 37℃ and 5% CO2 with 5mM glucose. The culture medium was supplemented with 10% heat-inactivated fetal bovine serum (FBS), 1% penicillin/streptomycin solution (P/S), 1% L-glutamine (L-Glu), 5mM Hepes, and 7.5% NaHCO3. Two days after plating, cells were split and seeded into separate culture dishes at varying cell densities for each experiment. For the first three days, cells were exposed to 5mM D-glucose (normal glucose, NG); 35mM D-glucose (high glucose, HG); and 5mM D-glucose and 30mM mannitol (NG+M) (as a negative control for high glucose) at 37℃ and 5% CO2. Then, after 72h of NG or HG stimulation, OTX008 was dissolved in 0.1% w/v dimethyl sulfoxide (DMSO) as a vehicle or 0.1% DMSO in fresh cell culture medium (NG or HG) and added daily until day 9.

Reaction Conditions

2.5-10µM; 4h

Applications

OTX008 treatment significantly increased cell viability in high glucose.

Animal experiment [2]:

Animal models

SQ20B cells xenograft mice model

Preparation Method

For the xenograft model, female athymic nude mice (Nu/Nu, 5-6 weeks old) were inoculated subcutaneously with tumor cells into the right abdominal cavity. When tumors reached approximately 100 cubic millimeters, animals were randomly assigned to treatment groups and began receiving OTX008. A total of 92 animals were inoculated, and 76 tumor-bearing animals were randomized before the start of intervention.

Dosage form

10mg/kg; ip; 21d

Applications

OTX008 inhibits tumor growth.

References:
[1]. Trotta M C, Petrillo F, Gesualdo C, et al. Effects of the Calix [4] arene derivative compound OTX008 on high glucose-stimulated ARPE-19 cells: Focus on galectin-1/TGF-?/EMT pathway[J]. Molecules, 2022, 27(15): 4785.
[2]. Koonce N A, Griffin R J, Dings R P M. Galectin-1 inhibitor OTX008 induces tumor vessel normalization and tumor growth inhibition in human head and neck squamous cell carcinoma models[J]. International journal of molecular sciences, 2017, 18(12): 2671.

Chemical Properties of OTX008

Cas No. 286936-40-1 SDF
Synonyms Calixarene 0118, PTX008
Chemical Name 2,2',2'',2'''-[pentacyclo[19.3.1.13,7.19,13.115,19]octacosa-1(25),3,5,7(28),9,11,13(27),15,17,19(26),21,23-dodecaene-25,26,27,28-tetrayltetrakis(oxy)]tetrakis[N-[2-(dimethylamino)ethyl]-acetamide
Canonical SMILES O=C(NCCN(C)C)COC1=C(C2)C=CC=C1CC3=CC=CC(CC4=CC=CC(CC5=CC=CC2=C5OCC(NCCN(C)C)=O)=C4OCC(NCCN(C)C)=O)=C3OCC(NCCN(C)C)=O
Formula C52H72N8O8 M.Wt 937.2
Solubility DMF: 1 mg/ml,DMSO: 2 mg/ml,Ethanol: 5 mg/ml,PBS (pH 7.2): 0.5 mg/ml Storage Store at -20°C
General tips Please select the appropriate solvent to prepare the stock solution according to the solubility of the product in different solvents; once the solution is prepared, please store it in separate packages to avoid product failure caused by repeated freezing and thawing.Storage method and period of the stock solution: When stored at -80°C, please use it within 6 months; when stored at -20°C, please use it within 1 month.
To increase solubility, heat the tube to 37°C and then oscillate in an ultrasonic bath for some time.
Shipping Condition Evaluation sample solution: shipped with blue ice. All other sizes available: with RT, or with Blue Ice upon request.

Complete Stock Solution Preparation Table of OTX008

Prepare stock solution
1 mg 5 mg 10 mg
1 mM 1.067 mL 5.335 mL 10.6701 mL
5 mM 213.4 μL 1.067 mL 2.134 mL
10 mM 106.7 μL 533.5 μL 1.067 mL
  • Molarity Calculator

  • Dilution Calculator

  • Molecular Weight Calculator

Mass
=
Concentration
x
Volume
x
MW*
 
 
 
**When preparing stock solutions always use the batch-specific molecular weight of the product found on the vial label and MSDS / CoA (available online).

Calculate

In vivo Formulation Calculator (Clear solution) of OTX008

Step 1: Enter information below (Recommended: An additional animal making an allowance for loss during the experiment)

mg/kg g μL

Step 2: Enter the in vivo formulation (This is only the calculator, not formulation. Please contact us first if there is no in vivo formulation at the solubility Section.)

% DMSO % % Tween 80 % saline
%DMSO %

Calculation results:

Working concentration: mg/ml;

Method for preparing DMSO master liquid: mg drug pre-dissolved in μL DMSO ( Master liquid concentration mg/mL, Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug. )

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 saline, 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.
2. Be sure to add the solvent(s) in order. You must ensure that the solution obtained, in the previous addition, is a clear solution before proceeding to add the next solvent. Physical methods such as vortex, ultrasound or hot water bath can be used to aid dissolving.
3. All of the above co-solvents are available for purchase on the GlpBio website.

Product Documents

Quality Control & SDS

View current batch:

Reviews

Review for OTX008

Average Rating: 5 ★★★★★ (Based on Reviews and 19 reference(s) in Google Scholar.)

5 Star
100%
4 Star
0%
3 Star
0%
2 Star
0%
1 Star
0%