Precemtabart
Based on 1 Customer Validation
Precemtabart is a humanized IgG1 antibody targeting CEACAM5, with selectivity for CEACAM5-positive cells. Precemtabart binds to CEACAM5 on tumor cells to deliver the topoisomerase 1 inhibitor Exatecan (HY-13631), and induces cell death by inhibiting the function of TOP1. Precemtabart inhibits the growth of CEACAM5-positive cancer cells. Precemtabart causes dose-dependent hematolymphoid and intestinal-related effects in cynomolgus monkeys. Precemtabart can be used in research related to metastatic colorectal cancer, metastatic pancreatic ductal carcinoma, advanced gastric cancer, advanced non-small cell lung cancer, and advanced pancreatic adenocarcinoma.
For research use only. We do not sell to patients.
- Purity: 99.00%
- CAS No.: 2883118-92-9
- Molecular Weight:144.471 kDa
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Storage:
Please store the product under the recommended conditions in the Certificate of Analysis.
All Topoisomerase Isoforms
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Biological Activity
Human IgG1 kappa
Human
CEACAM5/CEA/CD66e
Precemtabart (Serial dilutions; 144 h) potently inhibits CEACAM5-positive SK-CO-1 (IC50 = 0.09 nM) and MKN-45 (IC50 = 0.63 nM) cell viability, but has minimal activity against CEACAM5-negative MDA-MB-231 cells at concentrations below 10 nM[1].
Precemtabart (1 nM; 6 days) exhibits a potent bystander effect, inducing cell death in CEACAM5-negative MDA-MB-231 cells when co-cultured with CEACAM5-positive SK-CO-1 cells[1].
Precemtabart (Serial dilutions; 144 h) efficacy is unaffected by MDR1 inhibition in LS513 cancer cells[1].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
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Cell Line:CEACAM5-positive SK-CO-1, CEACAM5-positive MKN-45, CEACAM5-negative MDA-MB-231
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Concentration:Serial dilutions
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Incubation Time:144 h
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Result:Potently inhibited cell growth in CEACAM5-positive SK-CO-1 and MKN-45 cell lines, with IC50 values of 0.09 nM and 0.63 nM, respectively.
Had minimal effects on the CEACAM5-negative MDA-MB-231 cell line, requiring concentrations greater than 10 nM for any considerable inhibition.
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Cell Line:LS513
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Concentration:Serial dilutions
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Incubation Time:144 h
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Result:Showed efficacy not affected by MDR1 inhibition in LS513 cell lines.
| NCT Number | Sponsor | Condition | Start Date |
Phase
|
|---|---|---|---|---|
| NCT01329991 | Plexxikon| | 2011-05 | PHASE1 |
Unconjugated
The product can be reconstituted/diluted with sterile PBS or saline.
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IgG1-kappa
ELISA, FACS, Functional assay
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Loaded Precemtabart on AHC2 biosensor, can bind CEACAM5 Protein, Human (HEK293, His, HY-P70675) with an affinity constant of 3.214E-09 M as determined in BLI assay. -
Flow cytometric analysis of 1X106 MCF-7 cells with Precemtabart (HY-P990940, red). Cells were fixed with 4% paraformaldehyde. Then stained with the primary antibody at 1/200 dilution for an hour at 4℃. Alexa Fluor 488-conjugated AffiniPure Goat Anti-Human IgG H&L (AF488) (HY-P83776) was used as the secondary antibody at 1/1,000 dilution for 30 minutes at 4℃. Human IgG1 kappa (HY-P99001, blue) was used as the isotype control, cells without incubation with primary antibody were used as the unlabeled control (black).
Chemical Information
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CAS No. 2883118-92-9
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Appearance Liquid
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Molecular Weight 144.471 kDa
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Color Colorless to light yellow
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SMILES
[Precemtabart]
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Synonyms
MBE-748; M-9140 Antibody; MBE-2882 Antibody
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Shipping
Shipping with dry ice.
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Formulation
Please refer to the lot-specific COA for specific buffer information.
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Storage
Please store the product under the recommended conditions in the Certificate of Analysis.
Purity & Documentation
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Data Sheet (260 KB)
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SDS (252 KB)
- English - EN (252 KB)
- Français - FR (252 KB)
- Deutsch - DE (252 KB)
- Norwegian - NO (252 KB)
- Español - ES (252 KB)
- Swedish - SV (252 KB)
- Italian - IT (252 KB)
- Korean - KR (252 KB)
- Portuguese - PT (252 KB)
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Inhibitory Antibodies User Guide (603 KB)
References
Calculators
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)