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293 Transfection System

 Transfection Kit

【 Transfection Reagent & Medium Kit 】(Transfection Reagent + Enhancer Reagent + Chemically Defined Medium) 
 
 *It is a ready-to-use product including HE400AZ medium (with Ala-Gln) to which L-alanyl-L-glutamine is added as a product component.
 
 *It is a product including HE400 medium (w/o Ala-Gln or Gln) that can control glutamine concentration during culture.
 Each Component

【 Transfection Reagent Kit 】(Transfection Reagent + Enhancer Reagent)
 
【 Transfection Reagent 】
 
【 Enhancer Reagent 】
 
【 Chemically Defined Medium 】

Transfection Reagent
Gxpress 293 TF Reagent
For 293 cells "Expi293F, 293T, 293-F, etc."

 
 
 
293 transfection chemically defined serum free medium

 Gxpress 293 TF Reagent has been developed for the gene expression system of human embryonic kidney (HEK) 293 cells, such as Expi293F or 293T cells, and the high production of recombinant proteins or the transfection assay in serum-free culture. All contents of Gxpress 293 TF Reagent are a chemically defined composition that no contains serum, protein, animal origin, hydrolysates, and no unknown composition.
   Gxpress 293 TF Reagent consists of a highly efficient gene transfer reagent and 293 Complexing Solution for forming optimal DNA/reagent complex. Gxpress 293 TF Reagent can be mixed with plasmid DNA into 293 Complexing Solution and added to the medium of 293 cells, so that transfection assay for high production of target recombinant protein in a short term is possible.

Package Contents(Catalog Number GX293-TF-0010)
・2.8 mL (1.4 mL x 2) Gxpress 293 TF Reagent
・100 mL (50 mL x 2) 293 Complexing Solution

Figure 1) Short-term prodiction of human IgG in Expi293F cells using the Gxpress 293 Transfection System.

Suspension Expi293F cells were cultured with disposable Erlenmeyer flasks under the following conditions.
Gxpress 293 Transfection System leads to the high performance in human IgG (whole molecule) production for Expi293F cells.
< Culture conditions >
(1) Seeding cell density:2.94 x 10e6 cells/mL, >95% viability.
(2) Shaker culture:125 rpm, 37℃, 8% CO2.
(3) Transfection system:Gxpress 293 Transfection & Medium Kit (GMEP Inc.).

Figure 2) Short-term expression of β-galactosidase in Expi293F cells using the Gxpress 293 Transfection System.

Suspension Expi293F cells were cultured with disposable Erlenmeyer flasks under the following conditions.
Gxpress 293 Transfection System leads to the high performance in β-galactosidase expression for Expi293F cells.
< Culture conditions >
(1) Seeding cell density:2.94 x 10e6 cells/mL, >95% viability.
(2) Shaker culture:125 rpm, 37℃, 5% CO2.
(3) Transfection system:Gxpress 293 Transfection & Medium Kit (GMEP Inc.).

Figure 3) Growth assay of 293 cells in HE400/HE400AZ medium.


Suspension 293 cells were cultured with disposable Erlenmeyer flasks under the following conditions.
HE400/HE400AZ medium leads to the high performance similar to Thermo Expi293 Expression medium in cell growth for Expi293F cells.
< Culture conditions >
(1) Seeding cell density:3 x 10e5 cells/mL.
(2) Shaker culture:125 rpm, 37℃, 8% CO2.
(3) Culture volume:30 mL with L-alanyl-L-glutamine.


Figure 4) HE400/HE400AZ medium shows supperior performance in the cell culture of Expi293F cells.

Cryopreserved Expi293F cells were thawed using Thermo Expi293 Expression medium or HE400/HE400AZ medium, and subcultured in disposable Erlenmeyer flasks under the fillowing conditions.
Next, the subculture was repeated with each medium to allow the cells to recover cryopreservation. Expi293F cells subcultured were subjected to growth assay using both Expi293 Expression medium and HE400/HE400AZ medium.
Similar to the cells passaged in Expi293 Expression medium, Expi293F cells subcultured with HE400/HE400AZ medium can exert the high performance in cell culture.
< Culture conditions >
(1) Seeding cell density:3 x 10e5 cells/mL.
(2) Shaker culture:125 rpm, 37℃, 8% CO2.
(3) Culture volume:30 mL with L-alanyl-L-glutamine.

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Gmep Incorporated

Hyakunen Park, Kurume, Fukuoka, Japan