Latikafusp
Based on 1 Customer Validation
Latikafusp (AMG 256) is a bifunctional fusion protein comprising a PD-1-targeting antibody and IL-21 mutein designed to deliver IL-21 pathway stimulation to PD-1+ cells. Latikafusp is designed to prime and extend the activity of cytotoxic and memory T cells and induce anti-tumor immunity. Latikafusp has the potential for solid tumors research.Latikafusp may lead to the development of immunogenicity-mediated responses.
商品は「研究用試薬」です。人や動物の医療用・臨床診断用・食品用の製品ではありません。
研究用途以外に使用した場合、当社は一切の責任を負いかねます。
- 純度 : 97.62%
- CAS 番号: 2552814-07-8
- 分子量:159.536 kDa
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保管条件:Shipping with dry ice
Please store the product under the recommended conditions in the Certificate of Analysis.
生物活性
製品説明
Isotype
Human IgG1 lambda1
Recommend Isotype Controls
体内実験
Latikafusp (10, 30 mg/kg; Weekly doses over three weeks; i.v.) activates both classical and alternative complement pathways[3].
Latikafusp (10, 30 mg/kg; Weekly doses over three weeks; i.v.) causes cynomolgus monkeys in all dose groups to show strong antibody responses, suggesting that the drug has high immunogenicity[3].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
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Animal Model:Cynomolgus monkeys [3]
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Dosage:5 mg/kg; administered on days 1 and 15
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Administration:i.v.
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Result:Elicited a strong immunogenic response in all animals, as evidenced by the presence of anti-Latikafusp IgG antibodies on days 15 and 25 following the initial dose administration.
Compared to the 22D4 group alone, the antibody response was significantly higher.
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Animal Model:Cynomolgus monkeys [3]
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Dosage:10, 30 mg/kg; Weekly doses over three weeks
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Administration:i.v.
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Result:Induced the development of anti-Latikafusp IgG antibodies in all animals by day 19, demonstrating a strong immune response to the therapeutic protein.
Administration in high doses led to severe adverse reactions and immunogenic complications, underscoring critical safety concerns associated with its use.
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Animal Model:Cynomolgus monkeys [3]
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Dosage:0, 6, 30, or 150 mg/kg; Weekly doses over four weeks
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Administration:i.v.
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Result:At the highest dose of 150 mg/kg, caused severe clinical signs in animals, including weakness, petechiae, hypothermia, and dehydration, which led to the unscheduled euthanasia of several animals.
Additionally, at high doses was linked to immunogenicity-related complications, such as thrombocytopenia and consumptive coagulopathy.
臨床実験
| NCT Number | Sponsor | Condition | Start Date |
Phase
|
|---|---|---|---|---|
| NCT01329991 | 2011-05 | PHASE1 |
Conjugated
Unconjugated
Reconsititution
The product can be reconstituted/diluted with sterile PBS or saline.
Format
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Human IgG1 lambda
アプリケーション
ELISA, FACS, Functional assay
Verified Bioactivity
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Loaded PD-1 Protein, Human (HEK293, His-Fc, HY-P73345) on HIS1K biosensor, can bind Latikafusp with an affinity constant of 9.162E-11 M as determined in BLI assay.
化学情報
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CAS 番号 2552814-07-8
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性状 Liquid
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分子量 159.536 kDa
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Color Colorless to light yellow
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SMILES
[Latikafusp]
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別名
AMG 256
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輸送条件
Shipping with dry ice.
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Formulation
Please refer to the lot-specific COA for specific buffer information.
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保管条件
Please store the product under the recommended conditions in the Certificate of Analysis.
純度とドキュメンテーション
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データシート (260 KB)
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SDS (251 KB)
- English - EN (251 KB)
- Français - FR (251 KB)
- Deutsch - DE (251 KB)
- Norwegian - NO (251 KB)
- Español - ES (251 KB)
- Swedish - SV (251 KB)
- Italian - IT (251 KB)
- Korean - KR (251 KB)
- Portuguese - PT (251 KB)
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Inhibitory Antibodies User Guide (603 KB)
参考文献
[1]. Greg Durm, et al. Abstract CT205: Design and rationale of a phase 1 study evaluating AMG 256, a novel, targeted, PD-1 antibody x IL-21 mutein bifunctional fusion protein, in patients with advanced solid tumors. Clin Cancer Res. 2022 Apr 1;28(7):1294-1301. [Content Brief]
[3]. Kroenke Met al. Translatability of findings from cynomolgus monkey to human suggests a mechanistic role for IL-21 in promoting immunogenicity to an anti-PD-1/IL-21 mutein fusion protein. Front Immunol. 2024 Jan 26;15:1345473. [Content Brief]
Calculators
濃度 (開始) × 体積 (開始) = 濃度 (終了) × 体積 (終了)