Chloroquine pretreatment before transfection

Discussion in 'Chloroquine Phosphate' started by redrat, 26-Feb-2020.

  1. sineus Well-Known Member

    Chloroquine pretreatment before transfection


    Transfections allow for transient expression of a gene of interest in a target cell line and can be useful for short term studies of protein function. We specifically use this protocol with Lenti-X 293T cells, a cell line optimized for production of lentiviral vectors.

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    Pretreatment with 0.1, 1, and 10 μM chloroquine reduced infectivity by 28%, 53%, and 100%, respectively. Reproducible results were obtained from three independent experiments. Reproducible results were obtained from three independent experiments. Autophagy inhibition through chloroquine pretreatment or Atg5shRNA infection led to the increase of cell apoptosis after PA treatment. Moreover, induction of autophagy by pretreatment with rapamycin resulted in distinct decrease of PA-induced apoptosis. Add the transfection mix dropwise being careful not to dislodge the cells. Incubate the cells for 18 h, or until the following morning. The following morning, carefully aspirate the media. Replace the media with 15 mL of DMEM complete. Incubate the cells 24-48 h before checking for protein expression.

    Last Upload: June 10, 2016 Day 0: Seed Lenti-X 293T cells (this cell line is optimized for production of lentiviral vectors) Day 1 (pm): Transfect Cells Day 2 (am): 18h post transfection - Remove media, replace with fresh media Day 3 or more (am): Observe fluorescence, harvest cells, or perform your experiment *Pro-Tips* Different brands and lots of FBS can promote or inhibit transfection. This approach can be adapted for different cell lines and different transfection reagents.

    Chloroquine pretreatment before transfection

    Autophagy inhibition attenuates hyperoxaluria-induced renal tubular., Autophagy protects against palmitate-induced apoptosis in hepatocytes.

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  7. For 293 cells the medium was replaced by fresh medium without applying a shock. The cells were then incubated for 1–6 days before the supernatant was harvested and analyzed by ELISA. Transfection efficiency was determined by staining β-galactosidase expressing cells with X-Gal after 24 h. Stable transfection for CHO cells

    • Transfecting Mammalian Cells Optimization of Critical Parameters..
    • Addgene General Transfection.
    • Calcium phosphate–mediated transfection of eukaryotic cells Nature..

    Within 5-10’ of adding the chloroquine. 7. For 15cm plates, add 1.69ml of the transfection buffer to the DNA-CaCl2 solution by “bubbling”. To “bubble”, use two mechanical pipeters Pipet-AidTM, one with a 1ml pipette to bubble air into the DNA-CaCl2 solution and the other to slowly drip the transfection buffer into the conical tube. Hours after transfection reaction has been applied to cells, gently remove media and replace with 10% glycerol or DMSO for 2-3 minutes. Remove and feed with complete media various references. *1 hour before transfection, replace cDMEM with cDMEM + 25 mM chloroquine. Both adults and children should take one dose of chloroquine per week starting at least 1 week before. traveling to the area where malaria transmission occurs. They should take one dose per week while there, and for 4 consecutive weeks after leaving. The weekly dosage for adults is 300mg base 500mg salt.

     
  8. Theme User

    Plaquenil (hydroxychloroquine) belongs to a group of medicines called quinolines. Plaquenil Overdose - Antibiotics Home Page Hydroxychloroquine Indications, Side Effects, Warnings. Plaquenil toxicity and lowering dosage What You Sjo
     
  9. ministroz User

    Chloroquine Side Effects Common, Severe, Long Term - Jul 30, 2019 Before the administration of chloroquine, the patient had only a mild skin erythema in the irradiated area, which was consistent with the radiotherapy dose she had received. On day 3 of chloroquine therapy, she developed localized brisk bullous eruptions in the irradiated area, which developed into a patch of fulminant moist desquamation.

    Chloroquine-induced bull’s eye maculopathy
     
  10. switchset.net Moderator

    Mechanisms of drug action and resistance Chloroquine resistance is associated with a decrease in the amount of chloroquine that accumulates in the food vacuole, the site of action for chloroquine. The mechanism for this decreased accumulation is controversial. Some studies have shown that the decrease in drug accumulation is due to an increase in drug efflux.

    Hydroxychloroquine - Wikipedia