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Human TGF-β Antibody - Fresolimumab Biosimilar

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Anti-hTGF-β-hIgG4 (S228P)

Human TGF-β1/β2/β3 (Fresolimumab) antibody - Human IgG4 (S228P)

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100 µg

3 x 100 µg

htgfb-mab14
+-
$109

Anti-human TGF-β1, β2, β3- Fresolimumab biosimilar - CAS #948564-73-6

Binding of anti-TGF-β mAb
Binding of Anti-TGF-β Fresolimumab

InvivoGen also offers:

HEK-Blue™ TGF-β cells
Recombinant human TGF-β

Anti-hTGF-β-hIgG4 (S228P) is a biosimilar antibody of Fresolimumab, a human transforming growth factor beta (TGF-β) antibody that blocks all mammalian active subtypes of TGF-β: TGF-β1, TGF-β2, and TGF-β3. This monoclonal antibody (mAb) is under investigation for the treatment of pulmonary fibrosis and various cancer types (non-small cell lung cancer).

More details More details

Anti-hTGF-β-hIgG4 (S228P) comprises the variable region of Fresolimumab and the human IgG4 (S228P) constant region of Fresolimumab for low/no effector functions.

This antibody can be used together with HEK-Blue™ TGF-β cells for screening and neutralization assays to block TGF-β signaling induced by recombinant human TGF-β (see figure).

 

Key features

  • Each lot is functionally tested and validated.
  • The complete sequence of the antibody construct has been verified.
  • The absence of endotoxins is determined by the EndotoxDetect™ assay.

 

All InvivoGen products are for internal research use only, and not for human or veterinary use.

Figures

Neutralization of hTGF-β signaling using Fresolimumab
Neutralization of hTGF-β signaling using Fresolimumab

Dose-dependent inhibition of HEK‑Blue™ TGF-β cellular response using Fresolimumab biosimilar. Increasing concentrations of Anti-hTGF-β-hIgG4 (S228P) (0.1 ng/ml - 10 µg/ml) were incubated with recombinant hTGF-β(3 ng/ml) for 1 hour before the addition of HEK‑Blue™ TGF-β cells. After overnight incubation, SEAP activity in the cell culture supernatant was assessed using QUANTI-Blue™ Solution. Data are shown as the percentage of activity (mean ± SEM).

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Specifications

Application: Neutralization assay, ELISA

Isotype:  Human IgG4 (S228P), kappa

Recommended isotype control: Human IgG4 (S228P)

Target: Human (h)TGF-β1, hTGF-β2, hTGF-β3

Species reactivity: Human

Clone: Fresolimumab, GC1008

Cas number: 948564-73-6

Sterility: 0.2 µm filtration

Source: CHO cells 

Production: Animal-free

Purification: Protein A

Molecular weight: 144.4 kDa

Physical form: Lyophilized

Formulation buffer: Sodium phosphate buffer with glycine, saccharose, and stabilizing agents

Preservative: Azide-free

Reconstitution buffer: Sterile water (not provided)

Purity: ≥ 95 %

Quality control: Each lot is functionally tested and validated

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Contents

Anti-hTGF-β-hIgG4 (S228P) purified monoclonal antibody is provided azide-free and lyophilized. It is available in two quantities:

  • htgfb-mab14​: 100 µg
  • htgfb-mab14-03: 3 x 100 µg

 

room temperature The product is shipped at room temperature.

store Upon receipt, store lyophilized antibody at -20 °C.

stability Lyophilized product is stable for at least 1 year.

Alert Avoid repeated freeze-thaw cycles.

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Details

Fresolimumab background

Fresolimumab is a fully human IgG4 (S228P) monoclonal antibody (mAb) designed to target the transforming growth factor beta (TGF-β) [1]. As a pan-specific mAb, it binds and neutralizes all three active mammalian isoforms of TGF-β: TGF-β1, TGF-β2, and TGF-β3 [1].

TGF-β is a multifunctional cytokine that regulates critical cellular processes such as proliferation, apoptosis, differentiation, and migration [2,3]. Dysregulated TGF-β signaling is implicated in several fibrotic diseases (e.g., idiopathic pulmonary fibrosis (IPF), chronic obstructive pulmonary disease (COPD)) and plays a role in cancer development and progression [1].

Fresolimumab (GC-1008) has been shown to inhibit the pathological effects of excessive TGF-β activity and was developed as a potential treatment for IPF, melanoma, renal cell carcinoma, and focal segmental glomerulosclerosis [1]. Currently, it remains under clinical investigation for its potential efficacy in osteogenesis imperfecta and non-small cell lung cancer (NSCLC) [4].

 

References:

1. Grütter C, et al., 2008. A cytokine-neutralizing antibody as a structural mimetic of 2 receptor interactions. Proc Natl Acad Sci U S A. 105(51):20251-6.
2. Travis MA. & Sheppard D., 2014. TGF-β activation and function in immunity. Annu Rev Immunol. 32:51-82.
3. Taylor AW., 2009. Review of the activation of TGF-beta in immunity. J Leukoc Biol. 85(1):29-33.
4. https://www.pharmaceutical-technology.com/data-insights/fresolimumab-sanofi-non-small-cell-lung-cancer-likelihood-of-approval/?cf-view

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