TranslationBlocker Human EGFR / ErbB1 / HER1 siRNA – DISCONTINUED

DISCONTINUED: Human EGFR / ErbB1 / HER1 TranslationBlocker™ siRNA Duplex Product Attributes

EGFR / ErbB1 / HER1 Knockdown Protocol:

1. 1. Starting with cultured cells in growth media seed 6 well plates with cells and incubate in serum-free media such as Opti-Mem-I at 37°C for at least 18 hrs.
   2. Prepare transfection reagent in serum-free growth media. Allow to come to room temperature. The above data was generated with Oligofectamine for delivery of EGFR / ErbB1 / Her1 siRNA prepared in accordance with manufacturer’s instructions.
   3. Dilute siRNA to working concentration in serum-free growth media. For Oligofectamine or similar transfections into 6 well plates, we recommend starting siRNA concentration optimization at around 200-400 pmol siRNA duplex in 200 ul of serum free media.Optimal dilution should be experimentally determined.
   4. Combine diluted siRNA and transfection reagent. Equivalent volumes of prepared Oligofectamine or other transfection reagent and diluted siRNA should be combined and incubated at room temperature for 30 minutes with gentle mixing (optional).
   5. Add prepared siRNA solution to cells. For 6 well plates this will entail adding the above solution to cells in approximately 2.5 ml serum-free media. Additionally, FITC labeled control siRNA (Product Number QC-1F) or positive control siRNA (Beta-Actin; Product Number QC-2) may be used to assess transfection efficiency.
   6. Incubate for 4 hours in serum free media.
   7. Allow cells to recover by adding serum containing media to culture without a media change. Generally 1-2 fold of the original volume of siRNA containing serum free media is added to restore nutrient levels in media.
   8. Incubate and assay several hours after transfection. Optimal knockdown time should also be experimentally determined. EGFR / ErbB1 / Her1 knockdown at the protein level was measured at 24-96 hours post transfection via western blot (24 and 48 hr data shown as an example). Data suggests EGFR / ErbB1 / Her1 knockdown requires at least 48 hours for adequate efficacy.