Lipofectamine™ MessengerMAX™ Transfection Reagent
New Genome Editing Support Center—Find technical tips and troubleshooting recommendations from our scientists.
New Transfection Support Center—Find technical tips and troubleshooting recommendations from our scientists.
Lipofectamine™ MessengerMAX™ Transfection Reagent
Invitrogen™

Lipofectamine™ MessengerMAX™ Transfection Reagent

Green features
Lipofectamine™ MessengerMAX mRNA Transfection Reagent delivers amazing transfection efficiency in neurons and a broad-spectrum of primary cells, enabling improved applicationRead more
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Catalog NumberQuantity
LMRNA0151.5 mL
LMRNA0010.1 mL
LMRNA0030.3 mL
LMRNA0080.75 mL
LMRNA15015 mL
Catalog number LMRNA015
Price (USD)
1,138.00
Each
Add to cart
Quantity:
1.5 mL
Price (USD)
1,138.00
Each
Add to cart
Lipofectamine™ MessengerMAX mRNA Transfection Reagent delivers amazing transfection efficiency in neurons and a broad-spectrum of primary cells, enabling improved application outcomes and more biologically relevant research. That's because our novel lipid nanoparticle technology is optimized to deliver the highest amount of mRNA possible without the nuclear entry step that is required with DNA.

Successfully transfect more predictive cell models with a reagent that provides:
• Amazing transfection efficiency in neurons and primary cell types
• Faster protein expression with no risk of genomic integration
• Up to 10x higher cleavage using mRNA CRISPRs

Enable high transfection efficiency in novel genome editing applications
Lipofectamine™ MessengerMAX™ reagent helps increase the likelihood of successful cleavage and recombination with GeneArt™ CRISPR Nuclease mRNA through highly efficient transfection, ultimately maximizing the efficiency of genetic modifications and simplifying the downstream processes.

Efficiently transfect difficult-to-transfect cells
Lipofectamine™ MessengerMAX™ reagent is designed to transfect a higher amount of mRNA into neurons and a broad spectrum of difficult-to-transfect primary cells. This eliminates the need for electroporation or viruses, and provides a > 2-fold improvement in transfection efficiency compared to other lipid based reagents.

Leverage advantages of mRNA transfection
Transfection of mRNA does not require nuclear uptake, which results in faster protein expression than DNA transfection since translation of mRNA occurs in the cytoplasm. Also, mRNA has no risk of genomic integration and transfection efficiency is cell cycle independent.
For Research Use Only. Not for use in diagnostic procedures.
Specifications
Cell TypeEstablished Cell Lines, Neuronal Cells, Stem Cells, Primary Cells, Hard-to-Transfect Cells
Format6-well Plate, 12-well Plate, 24-well Plate, 48-well Plate, 96-well Plate, Flasks
Sample TypemRNA
Transfection TechniqueLipid-based Transfection
For Use With (Application)Transfection
Green FeaturesSustainable packaging
Product LineLipofectamine™
Product TypeTransfection Reagent
Quantity1.5 mL
Serum CompatibleYes
Shipping ConditionRoom Temperature
Unit SizeEach
Contents & Storage
Store in refrigerator (2–8°C).

Frequently asked questions (FAQs)

I am trying to troubleshoot our mRNA transfection process using Lipofectamine MessengerMAX Transfection Reagent. Could you tell me some reasons why we may not be seeing expression after transfection? We are using primary cells, so I am not sure if it is due to the difficulty in transfecting these cells or another cause.

There are reasons that can influence expression after transfection, but before troubleshooting all the possibilities, a transfection experiment with a positive GFP mRNA control (Tri-Link CleanCap EGFP mRNA, Cat. No. L-7201) and the Lipofectamine MessengerMAX mRNA Transfection Reagent could be the solution. If this does not yield good results, it might be best to try an alternative delivery solution or different cells. However, if this gives acceptable results, the next step would be to try the mRNA of interest with the MessengerMAX reagent. If there are expression level concerns at this point, it might be the mRNA that is being used, and troubleshooting from this perspective might be needed. For example, some questions to ask would be: Is there a 5' cap? Is there a poly(A) tail? Is the mRNA pure? Do I get a single band on a gel? Was the DNA template clean?

Find additional tips, troubleshooting help, and resources within our Transfection Support Center.

We have seen quite a bit of variation in our mRNA transfection efficiency with Lipofectamine MessengerMAX Transfection Reagent, based on the number of passages prior to transfection. Do you have advice on the best passage number?

It is normal to observe some transfection efficiency differences between cell passages.To minimized this variability, we recommend using cells between 5-20 passages. Including a positive GFP mRNA control (Tri-Link CleanCap EGFP mRNA, Cat. No. L-7201) with every transfection experiment is helpful to quantitatively determine and follow any changes in transfection efficiencies from week to week.

Find additional tips, troubleshooting help, and resources within our Transfection Support Center.

I have been getting some toxicity in my mRNA transfections using Lipofectamine MessengerMAX Transfection Reagent. What would you recommend for minimizing toxicity?

Consider including appropriate 5' UTR and 3' UTR sequences into the template design to promote mRNA stability and acceptance by the cell. Use high purity in vitro transcribed mRNA purified with the MegaClear Transcription Cleanup Kit. Ensure A260/280 ratios are between 1.8 and 2.1. Check for mRNA quality and size by agarose gel electrophoresis. In some cases, consider incorporating chemically modified nucleotides in the transcription reaction. Cell number, mRNA, and lipid quantities may need to be adjusted. Ideal viable cell density on the day of transfection is between 70 and 90% confluence. For transfection optimization tips, please visit: thermofisher.com/transfectionsupport.

Find additional tips, troubleshooting help, and resources within our Transfection Support Center.

I accidentally left my lipid reagent at room temperature. Can I still use it?

Yes, all of our lipid transfection reagents are stable at room temperature for months.

Find additional tips, troubleshooting help, and resources within our Lipid-Based Transfection Support Center.

When transfecting mRNA, does the packaging of the foreign RNA into vesicles reduce the accessibility of the mRNA for protein translation or is the mRNA all released in the cytoplasm? If packaged away, what percent is packaged vs. what percent is left to be available for translation? Is this observed with DNA plasmids?

We have not observed differences between how a cell packages an mRNA payload versus a DNA payload for the purpose of delivery. Transfection involves complex formation between a liposome and mRNA, which create lipoplexes that are taken up by the cell via endocytosis. The liposome protects the mRNA during this process and also assists in endosomal escape, which releases the mRNA into the cytoplasm of the cell. The mRNA is immediately available for translation with the ribosome. In vitro transcribed mRNA may be prepared using the mMESSAGE mMACHINE T7 Ultra Transcription Kit, which incorporates a 5' ARCA cap and a 3' poly(A) tail to mimic endogenously transcribed mRNA.

Find additional tips, troubleshooting help, and resources within our Transfection Support Center.

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