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What is the proof that DNA enters the nucleus during Nucleofection™?

There are two facts that prove that the DNA is directly transported into the nucleus: 1.) Using the Nucleofector™ Technology, transfection of non-dividing cells is possible. With conventional non-viral transfection methods cell division is a...

Do you recommend positive selection or depletion for the purification of Human monocytes for Nucleofection®?

We only recommend the depletion method. For Example, the RosetteSep™ Isolation Kit for human monocytes [Stem Cell Technologies, Cat. No 15028]. The advantage of depletion is that the monocytes are left untouched by antibodies during the process.

Does it matter if the PBS used for monocyte enrichment contains calcium and magnesium, if the cells should be used later in Nucleofection®?

The PBS should be calcium and magnesium free to prevent clumping of cells. We routinely use PBS without calcium and magnesium for example Lonza Cat. No. BEBP17-516Q

How can I remove the cells from the 100 uL Nucleocuvette® Vessel after Nucleofection®? Is there any alternative?

We recommend using the plastic single use pipettes provided in the kits. These pipettes prevent any damage to the cells and ensure a good cell recovery.

What kind of protocol you recommend for stimulation of human T cells?

For getting the results we present in our datasheet, we recommend the follwing strategy: Cells should be stimulated and cultivated for 3 days before Nucleofection, preferentially on plates coated with 1 µg/ml anti-CD3 and 2 µg/ml anti-CD28 antibody....

What antibodies can be used against the GFP produced by pmaxGFP™ and pmaxFP™-Green vectors? What antibodies can be used to detect denatured GFP? What antibodies can be used to detect the RFP expressed by pmaxFP-Red?

Most of the commercial antibodies for GFP do not detect GFP expressed from pmaxGFP or pmaxFP-Green vectors. The origin of the protein expressed by the pmaxGFP control plasmid and pmaxFP-Green is from the green fluorescent protein CopGFP, cloned from...

Is the age of the mice important for my mouse T cell Nucleofection®?

Yes. We recommend using mice between 6-12 weeks. Using mouse T cells isolated from younger or older animals for Nucleofection® may result in much lower transfection efficiencies and/or viabilities.

Are there any effects on the differentiation of neural stem cells following Nucleofection®?

The ability of transfected rat or mouse neural stem cells to be subsequently differentiated into a variety of cell types is well documented in:Olig2 Overexpression Induces the In Vitro Differentiation of Neural Stem Cells into Mature...

Can calcium influx issues affect viability or differentiation in Stem Cells after Nucleofection®?

When cells are transfected by Nucleofection®, transient pores are generated in the cell membrane. Generally, these pores disappear within 15 minutes of transfection, but if cells are plated immediately after Nucleofection® in medias that contain...

I see activation of my monocytes (or macrophages or DCs) following Nucleofection®. Why is this? What can I do to address this problem?

We have examined the effects of Nucleofection® (without DNA) on these cells and have not observed significant activation. This indicates that neither the Nucleofector® Solution, the Nucleofector® Program nor the recovery medium are...

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