Vectofusin-1
Based on 1 Customer Validation
Vectofusin-1 is a histidine-rich cationic amphipathic peptide derived from the LAH4 (HY-P0311) peptide family, and also acts as a Viral entry enhancer. Vectofusin-1 promotes the adhesion and fusion of retroviral/lentiviral vectors with cell membranes during viral entry, thereby improving transduction efficiency. Vectofusin-1 potently enhances lentiviral transduction of cells.
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- Pureté: 98.77%
- Formule: C132H229N39O26
- Masse moléculaire:2778.48
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Stockage:
Sealed storage, away from moisture.
Powder -80°C, 2 years , -20°C, 1 year* In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)
Activité biologique
Vectofusin-1 (12 μg/mL; 6 h) potently enhances the transduction efficiency of multiple lentiviral and retroviral pseudotypes in umbilical cord blood-derived hCD34+ hematopoietic stem/progenitor cells, resulting in a GFP+ cell proportion ranging from 57.5% to 79.4%, with no detectable cytotoxicity[1].
Vectofusin-1 (0-35 μg/mL; 5 days) enhances the transduction efficiency of GALVTR-LV in umbilical cord blood-derived hCD34+ hematopoietic stem/progenitor cells, with an EC50 of 6 μg/mL and a maximum average transduction efficiency of up to 67%[1].
Vectofusin-1 (0-100 μg/mL; overnight) has a median toxic concentration (TC50) of 60 μg/mL against umbilical cord blood-derived hCD34+ hematopoietic stem/progenitor cells, resulting in a 1-log safety index (TC50/EC50 = 10)[1].
Vectofusin-1 (12 μg/mL) effectively enhances the transduction efficiency of VSV-G-pseudotyped lentiviral vectors in umbilical cord blood-derived hCD34+ hematopoietic stem and progenitor cells (HSPCs), with the proportion of GFP-positive cells ranging from 76.2% to 82.7% in both total cell and subset analyses, which is comparable to the efficacy of Retronectin[2].
Vectofusin-1 (12 μg/mL) effectively enhances the transduction efficiency of VSV-G-pseudotyped lentiviral vectors in bone marrow-derived hCD34+ hematopoietic stem and progenitor cells (HSPCs); in analyses of total cells and subpopulations, the proportion of GFP-positive cells ranges from 69.8% to 74.8%, with a mean vector copy number (VCN) of 6.0 per cell, which is comparable to the efficacy of Retronectin[2].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
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Animal Model:BALB-Rag/γC immunodeficient mice (newborn pups)[1]
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Dosage:12 μg/mL
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Administration:ex vivo
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Result:Detected equivalent numbers of hCD45+ human cells in peripheral blood, thymus, spleen, and bone marrow compared to untreated or Retronectin-treated cells.
Achieved engraftment of transduced GFP+ hCD45+ cells at least as robust as with Retronectin.
Observed active human thymopoiesis, with efficient transduction of immature CD3-low double-positive hCD4/hCD8 cells and mature CD3-high single-positive hCD4 and hCD8 T cells in the thymus.
Detected active human B lymphoid development (hCD19+ cells) in the spleen, which was efficiently transduced.
Detected and transduced human hematopoietic stem cells (hCD34+ hCD45+ cells), monocytes (hCD14+ cells), and granulocytes (hCD11b+ cells) in the bone marrow.
Chemical Information
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Appearance Solid
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Masse moléculaire 2778.48
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Formule C132H229N39O26
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Color White to off-white
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Sequence
Lys-Lys-Ala-Leu-Leu-His-Ala-Ala-Leu-Ala-His-Leu-Leu-Ala-Leu-Ala-His-His-Leu-Leu-Ala-Leu-Leu-Lys-Lys-Ala-NH2
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Sequence Shortening
KKALLHAALAHLLALAHHLLALLKKA-NH2
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Livraison
Room temperature in continental US; may vary elsewhere.
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Stockage
Sealed storage, away from moisture
Powder -80°C 2 years -20°C 1 year * In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)
Pureté et documentation
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Fiche technique (264 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)
- Portuguese - PT (252 KB)
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Instruction de manipulation (2659 KB)
Références
[1]. Fenard D, et al. Vectofusin-1, a new viral entry enhancer, strongly promotes lentiviral transduction of human hematopoietic stem cells. Mol Ther Nucleic Acids. 2013;2(5):e90. Published 2013 May 7. [Content Brief]
[2]. Piovan C, et al. Vectofusin-1 Promotes RD114-TR-Pseudotyped Lentiviral Vector Transduction of Human HSPCs and T Lymphocytes. Mol Ther Methods Clin Dev. 2017;5:22-30. Published 2017 Mar 8. [Content Brief]
Calculators
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
- Vectofusin-1
- Vectofusin1
- Vectofusin 1
- Drug Derivative
- human CD34+ hematopoietic stem/progenitor cells
- lentiviral vectors
- BALB-Rag/γC mice
- activated human T lymphocytes
- γ-retroviral vectors
- RD114-TR-pseudotyped lentiviral vectors
- VSV-G pseudotyped lentiviral vectors
- bone marrow
- umbilical cord blood
- mobilized peripheral blood
- Inhibitor
- inhibitor
- inhibit