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	<id>https://bridgeslab.sph.umich.edu/protocols/index.php?action=history&amp;feed=atom&amp;title=PEI_Mediated_Plasmid_Transfection</id>
	<title>PEI Mediated Plasmid Transfection - Revision history</title>
	<link rel="self" type="application/atom+xml" href="https://bridgeslab.sph.umich.edu/protocols/index.php?action=history&amp;feed=atom&amp;title=PEI_Mediated_Plasmid_Transfection"/>
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	<updated>2026-06-02T00:12:52Z</updated>
	<subtitle>Revision history for this page on the wiki</subtitle>
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		<id>https://bridgeslab.sph.umich.edu/protocols/index.php?title=PEI_Mediated_Plasmid_Transfection&amp;diff=1408&amp;oldid=prev</id>
		<title>Davebrid: Wrote initial protocol for PEI transfections</title>
		<link rel="alternate" type="text/html" href="https://bridgeslab.sph.umich.edu/protocols/index.php?title=PEI_Mediated_Plasmid_Transfection&amp;diff=1408&amp;oldid=prev"/>
		<updated>2017-12-19T16:15:41Z</updated>

		<summary type="html">&lt;p&gt;Wrote initial protocol for PEI transfections&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;This protocol is modified from the [https://www.addgene.org/protocols/lentivirus-production/ Addgene website] protocol&lt;br /&gt;
&lt;br /&gt;
== Materials==&lt;br /&gt;
* Cells to transfect, generally growing in log phase at ~90% confluence&lt;br /&gt;
* Plasmids to transfect.  Generally use 500 ng/well of a 6 well plate&lt;br /&gt;
* OptiMEM&lt;br /&gt;
* Chloroquine stocks (25 mM stocks).  See [[Preparation of Chloroquine Stocks]].&lt;br /&gt;
* PEI (1 mg/mL stocks). See [[Preparation of PEI Stocks]].&lt;br /&gt;
* DMEM/10% FBS/PSG and DMEM/10% FBS with no PSG&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
==Transfection Procedure==&lt;br /&gt;
* The morning of the transfection day, replace the media with fresh DMEM &amp;#039;&amp;#039;&amp;#039;without PSG&amp;#039;&amp;#039;&amp;#039; and containing 10 uL of 25 mM chloroquine (optional).  Wait ~5h before going onto the next step.&lt;br /&gt;
* Prepare DNA in a sterile 1.5 mL tube or tubes as needed.  Use 100 uL per well.&lt;br /&gt;
* Add 3 uL PEI per ug of DNA in OptiMEM.  The total volume should be 100 uL per well.  if transfecting multiple contstructs, make enough of this solution for all transfections.&lt;br /&gt;
* Gently add the PEI solution dropwise into the DNA solution (adding 100 uL to each 100 uL/well volume).&lt;br /&gt;
* Incubate at room temperature for 15-20min.&lt;br /&gt;
* Add transfection mixture slowly to the cells.&lt;br /&gt;
* Incubate overnight.  The next day carefully replace with media containing PSG and/or treat as needed.&lt;br /&gt;
&lt;br /&gt;
[[ Category: Cell Culture ]]&lt;br /&gt;
[[ Category: Tissue Culture ]]&lt;br /&gt;
[[ Category: Transfection ]]&lt;br /&gt;
[[ Category: Molecular Biology ]]&lt;br /&gt;
__NOTOC__&lt;/div&gt;</summary>
		<author><name>Davebrid</name></author>
	</entry>
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