InvivoGen 新品推薦：核酸轉染增強試劑——NATE™

產品介紹：

NATE™是InvivoGen設計的一種核酸轉染增強劑，可以提高難轉染細胞的瞬轉與穩轉效率，尤其適合人的單核細胞與小鼠巨噬細胞等難轉染的細胞，如外周血單核細胞（THP-1）和小鼠單核巨噬細胞白血病細胞（RAW 264.7），且只需在平時加轉染試劑操作前30min加入NATE™即可。值得注意的是，NATE對細胞溫和，不會對細胞培養產生任何進一步的毒性。

在真核細胞轉染過程中，外源性核酸(如質粒)的主要障礙是會被胞質傳感器檢測，如cGAS/STING、AIM2炎性小體和LC3介導的自噬。這些防御信號級聯的激活常常會降低轉染率和細胞存活率，特別是在難以轉染的細胞(如免疫細胞)中會更明顯。當使用NATE™時，這些核酸傳感通路將被抑制，從而在轉染過程中保護質粒并促進其表達。

產品特色：

● 與常用轉染試劑 (e.g. GeneXPlus, Lipofectamine® LTX, and jetPRIME®) 及物理方法兼容。

● 更高的轉染率，也適用于大質粒 (> 10kb)。

● 在所有的轉染測試方案中都顯示對細胞溫和，沒有毒性。

產品信息：

應用舉例：

Top - Transient transfection of an ~3 kb GFP-expressing plasmid into THP-1 cells was performed using GeneXPlus both in the absence (left) and presence (right) of NATE™. After 48 hours, the transfected cells expressing GFP were visualized by fluorescence microscopy. Bottom - Transient transfections of an ~3 kb GFP-expressing plasmid (left) and an 8 kb GFP-expressing plasmid (right) into THP-1 cells was performed using commonly used transfection methods such as GeneXPlus, Lipofectamine® LTX, jetPRIME®, and nucleofection. This was performed both in the presence (green) and absence (yellow) of NATE™. After 48 hours, transfection efficiency (% GFP-expressing cells) was measured using flow cytometry. Data are presented as a fold change compared to transfection without NATE™ 

Top - Transient transfection of an ~3 kb GFP-expressing plasmid into RAW 264.7 cells was performed using Lipofectamine® LTX both in the absence (left) and presence (right) of NATE™. After 48 hours, the transfected cells expressing GFP were visualized by fluorescence microscopy. Bottom - Transient transfection of an ~3 kb GFP-expressing plasmid (left) and an 8 kb GFP-expressing plasmid (right) into RAW 264.7 cells was performed using commonly used transfection methods including Lipofectamine® LTX, jetPRIME®, FuGENE®, and nucleofection. This was performed both in the presence (green) and absence (yellow) of NATE™. After 48 hours, transfection efficiency (% GFP-expressing cells) was measured using flow cytometry. Data are presented as fold change compared to transfection without NATE™.

Stable transfection of an ~10 kb SEAP?expressing plasmid into RAW 264.7 cells was performed using Lipofectamine® LTX both in the absence (left) and presence (right) of NATE™. After 10 days in selection with Blasticidin, the number of stable clones expressing SEAP (blue wells) was visualized using QUANTI?Blue™, a SEAP detection reagent.

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