PEI 40K 轉染試劑(PEI 40K Transfection Reagent) | SERVICEBIO 貨號G1802-1ML
SERVICEBIO 細胞分析>細胞轉染系列產品- PEI 40K Transfection Reagent
PEI 40K 轉染試劑(PEI 40K Transfection Reagent) | SERVICEBIO 貨號G1802-1ML
(PEI 40K Transfection Reagent)
產品介紹:
將DNA轉染到真核細胞是研究生物機制的常用方法。一個主要目標是將基因有效且特異性地遞送到所需的目標細胞中。儘管已經開發了多種具有不同效率的技術和載體(病毒和非病毒),但大多數載體缺乏目標細胞特異性。非病毒載體因其易於操作、安全性以及所傳遞的轉基因大小的高度靈活性而具有吸引力。轉鐵蛋白感染是一種高效能核酸遞送系統,基於轉鐵蛋白受體介導的內吞作用,將 DNA 攜帶到細胞中。此外,研究表明,陽離子聚合物聚乙烯亞胺(PEI)可介導有效的基因轉移到多種細胞。在聚乙烯亞胺-轉鐵蛋白轉染系統中,PEI/DNA複合物的基因轉移效率與轉鐵蛋白受體介導的內吞作用的特定機制相結合。
此方法可將轉染效率提高 30-1,000 倍,具體取決於細胞系。這是一種極為溫和的 DNA 轉染方法,利用細胞的生理攝取機制。轉染功效取決於細胞類型、表面轉鐵蛋白受體表現量。所測試的腫瘤細胞系 B16F10 黑色素瘤、Neuro 2A 神經母細胞瘤和多種原代人類黑色素瘤細胞系均顯示出非常高的轉染率。在其他已建立的細胞系中,例如 HeLa、CHO、Jurkat、K562、HepG2 和 COS,PEI 轉鐵感染具有高效率、出色的重現性以及操作極其溫和的優點。
人類轉鐵蛋白與具有內在/固有內體活性的聚陽離子載體(聚乙烯亞胺/PEI)共價連接。 PEI 能夠濃縮 DNA 並將其輸送到細胞中,大概是透過吸附內吞作用。此外,PEI 在生理 pH 值下僅部分質子化。在內體/溶酶體內酸化後,PEI 可能充當質子海綿,質子化引發氯離子流入、滲透膨脹和內體/溶酶體囊泡的不穩定,使 DNA 釋放到胞質溶膠中。因此,無需額外的內體去穩定劑即可獲得有效的基因轉移。修飾後的 PEI 綴合轉鐵蛋白分子保持了與其同源受體結合並介導有效鐵轉運至細胞內的能力。轉鐵蛋白受體介導的內吞作用隨後發生,隨後表達輸入的 DNA。去鐵敏是一種細胞滲透性鐵螯合劑,可增加細胞表面的轉鐵蛋白受體密度,進而進一步增強基因向細胞的傳遞。
本品主要成分Pei 40K的濃度為1mg/ml。
Transfection of DNA into eukaryotic cells is a common method to study biological mechanisms. A major goal is the efficient and specific delivery of genes into the desired target cells. Although a wide panel of techniques and vectors (viral and nonviral) have been developed that work with variable efficiency, most vectors lack a target cell specificity. Nonviral vectors are attractive because of their ease of manipulation, safety, and high flexibility in the size of the delivered transgene. The Transferrinfection is a high-efficiency nucleic acid delivery system based on transferrin receptor-mediated endocytosis to carry DNA into cells. Furthermore it was shown that the cationic polymer polyethylenimine (PEI) mediates efficient gene transfer into a variety of cells. In the Polyethylenimine-Transferrinfection system, the gene transfer efficiency of PEI/DNA complexes are combined with the specific mechanism of receptor-mediated endocytosis via Transferrin receptor.
The method results in a 30–1,000-fold enhanced transfection efficiency depending on the cell line. It is an extremely gentle DNA transfection method that employs physiological uptake mechanisms of the cell. Transfection efficacy depends on the cell type, the level of surface transferrin receptor expression. Very high transfection rates have been shown for the tested tumor cell lines B16F10 melanoma, Neuro 2A neuroblastoma, and a variety of primary human melanoma cell lines. In other established cell lines, such as HeLa, CHO, Jurkat, K562, HepG2, and COS, the PEI-Transferrinfection works with high efficiences, excellent reproducibility and with the advantage of being an extremely gentle procedure.
Human transferrin is covalently linked to a polycationic carrier (Polyethylenimine/PEI) with intrinsic/ inherent endosomal activity. PEI has the capacity to condense DNA and deliver it into cells, presumably by adsorptive endocytosis. Furthermore, PEI is only partially protonated at physiological pH. Upon acidification within the endosome/ lysosome, PEI presumably acts as proton sponge with the protonation triggering chloride influx, osmotic swelling, and destabilization of the endosomal/ lysosomal vesicle enabling the release of the DNA into the cytosol. As a result, efficient gene transfer is obtained without the need for additional endosome destabilizing agents. The modified, PEI-conjugated, transferrin molecules maintain their ability to bind their cognate receptor and to mediate efficient iron transport into the cell. Transferrin receptor-mediated endocytosis occurs followed by the expression of the imported DNA. Deferrioxamine, a cell permeable iron chelator, increases the transferrin receptor density on the cell surface thus further enhancing gene delivery to the cell.
The concentration of Pei 40K, the main component of this product, is 1 mg / ml.

| Component Number | Component | G1802-1ML | G1802-10ML |
| G1802-1 | PEI 40 K Transfection Reagent | 1 mL | 10 mL |
| Instruction Manual | 1 pc | 1 pc | |
使用用法:
1.貼壁細胞轉染前準備(6孔板,其他規格參考表):
A) 轉染前一天,將細胞以適當的密度均勻地種植在孔板中。
正式轉染後適當的密度收斂到 70 – 85%;
B)轉染前,移除原代細胞培養基,以PBS洗滌1-2次,再更換1.8 mL無血清或低血清(5%以下)基礎培養基,或Opti-MEM;不同的細胞根據特定的細胞類型具有不同的血清依賴性;
C)將施用的細胞放入培養箱中,開始轉染複合物的製備。
2.轉染前懸浮細胞的製備:
A) 轉染當天,離心適量細胞,除去培養基
以無血清或低血清(5%以下)基礎培養基重懸;
B) 將製備好的懸浮細胞放入培養箱中,開始製備
轉染複合物,轉染複合物與培養基的體積比可以
參考貼壁細胞進行適當調整。
3. 轉染複合物的製備:
A) 製備液A:無血清基礎培養基100μL及質粒DNA 2μg,吹勻
混合的;
B)B液配製:無血清基礎培養基100 L+PEI 40 K轉染6-8 μL
試劑、吹氣、混合;
C)將B液加入A液中,輕輕吹勻,室溫孵育
15分鐘形成DNA-PEI轉染複合體。
4. 轉染細胞:
A) 將上一步驟所得的轉染複合物添加到先前更換的孔板上
穿過或包圍溶液;
B) 以「8」或其他方式搖動板,使其充分混合,並在37℃、5%CO2培養箱中培養;
C) DNA-PEI 與細胞轉染複合物 4 – 6 小時顯示出更好的轉染效率,
適當延長或過夜孵育,轉染效率較好。
1. Preparation before transfection of adherent cells (6-well plate, reference table for other specifications):
A) The day before transfection, cells were appropriate to be uniformly planted in the pore plates at an
appropriate density to converge to 70 – 85% upon formal transfection;
B)Before transfection, primary cell media was removed and washed 1-twice with PBS before replacing 1.8 mL of base medium without serum or low serum (below 5%), or Opti-MEM; different cells had different serum dependence depending on the specific cell type;
C)The apped cells were placed in the incubator and preparation of transfection complexes was started.
2. Suspension cells were prepared before transfection:
A) On the day of transfection, an appropriate amount of cells were centrifuged to remove the medium
and resuspended with basal medium without serum or low serum (below 5%);
B) The prepared suspension cells were placed in the incubator and started the preparation of
transfection complexes, and the volume ratio between transfection complexes and medium could
be made with reference to adherent cells for appropriate adjustments.
3. Transfection complexes were prepared:
A) Preparation liquid A: 100 μL of serum-free base medium and 2 μg of plasmid DNA, blowing and
mixed;
B)Preparation of liquid B: 100 L of base medium without serum and 6-8 μL PEI 40 K Transfection
Reagent, blowing and mixing;
C)Solution B was added to liquid A, gently blown and mixed, and incubated at room temperature for
15 min to form a DNA-PEI transfection complex.
4. Transfected cells:
A) Add the transfection complex obtained in the previous step to the previously changed hole plate by
crossing or surrounding the solution;
B) Shake the plate “8” or other way to be fully mixed and incubated in a 37℃, 5% CO2 incubator;
C) DNA-PEI transfection complexes with cells for 4 – 6 h showed better transfection efficiency,
appropriate extension or overnight incubation and better transfection efficiency.
注意事項
1. 請使用狀態良好的健康細胞,回收細胞建議轉染至少2次後再轉染。
2. 請使用高品質、無內毒素的質粒DNA。
3. 轉染時血清濃度過高以及抗生素的使用可能會影響細胞狀態和轉染效率。
4. 適當調整不同細胞的耐受性、敏感性、轉染孵育時間長短、PEI/DNA使用比例。
5、操作時請穿戴實驗服及一次性手套。
1. Please use healthy cells in good condition and recovered cells are recommended to transage at least 2 times before transfection.
2. Please use a high-quality, endotoxin-free, plasmid DNA.
3. High concentrations of serum at transfection, as well as the use of antibiotics, may affect cell status as well as transfection efficiency.
4. Different cell tolerance, sensitivity, length of transfection incubation time, and PEI / DNA usage ratio were adjusted as appropriate.
5. Please wear experimental suits and disposable gloves when operation.
|
G1802-10ML
|
PEI 40K Transfection Reagent
|
10 mL
|
|
G1802-1ML
|
PEI 40K Transfection Reagent
|
1 mL
|
|
G1803-1ML
|
Polybrene (10 mg/mL)
|
1 mL
|
|
G1805-0.5ML
|
SweTransDNA Transfection Reagent
|
0.5 mL
|
|
G1806-0.5ML
|
SweTransRNA Transfection Reagent
|
0.5 mL
|

Servicebio台灣品牌介紹-BRAND/AGENCY/品牌介紹- Servicebio
| Classfication | Cat No. | Name | Place of Origin | Spec. |
|
Amino Acids
|
GC304002 | L-Glutamine | 產品資料 | 100 g |
| GC304003 | L-Arginine hydrochloride | 產品資料 | 25 g | |
| GC304004-100g | L-Glutamine acid | 產品資料 | 100 g | |
| GC304005 | L-Isoleucine | 產品資料 | 25 g | |
| GC304006-25g | L-Leucine | 產品資料 | 25 g | |
| GC304007 | L-Lysine hydrochloride | 產品資料 | 25 g | |
| GC304009 | L-Methionine | 產品資料 | 25 g | |
| GC304010 | L-Phenylalanine | 產品資料 | 10 g | |
| GC304011-25g | L-Alanine | 產品資料 | 25 g | |
| GC304012 | L-Histidine | 產品資料 | 25 g | |
| GC304013 | L-Serine | 產品資料 | 25 g | |
| GC304014 | L-tryptophan | 產品資料 | 5 g | |
| GC304016 | L-Threonine | 產品資料 | 25 g | |
| GC304017 | L-Valine | 產品資料 | 10 g | |
| GC304019 | Glycine | 產品資料 | 500 g | |
| GC304021 | L-Histidine hydrochloride monohydrate | 產品資料 | 25 g | |
| GC304022 | Glycine cell culture grade 甘氨酸Glycine (細胞培養等級 |
產品資料 | 100 g | |
|
Protein Derivatives
|
GC305002-5g | Iodoacetamide | 產品資料 | 5 g |
| GC305003 | Trypsin 1:250 Source: Porcine Pancreas | 產品資料 | 10 g | |
| GC305004-5g | Pepsin 1:3000 | 產品資料 | 5 g | |
| GC305005 | Horseradish peroxidase | 產品資料 | 1 g | |
| GC305006 | Bovine Serum Albumin – import | 產品資料 | 100 g | |
| GC305009 | Human Albumin-FITC | 產品資料 | 0.5 mL | |
| GC305010 | Bovine Serum Albumin BSA | 產品資料 | 100 g | |
| GC305010-25G | Bovine Serum Albumin BSA | 產品資料 | 25 g | |
| GC305010-50G | Bovine Serum Albumin BSA | 產品資料 | 50 g | |
| GC305010-5G | Bovine Serum Albumin BSA | 產品資料 | 5 g | |
| GC305013-100mg | Collagenase I | 產品資料 | 100 mg | |
| GC305014-100mg | Collagenase II | 產品資料 | 100 mg | |
| GC305015-100mg | Collagenase IV 膠原酶IV (Collagenase IV) |
產品資料 | 100 mg | |
| GC305016-100g | Gelatine | 產品資料 | 100 g | |
|
Hormones
|
GC302002-25mg | Abscisic acid | 產品資料 | 25 mg |
| GC302003 | Angiotensin II | 產品資料 | 10 mg | |
|
Biological pigments
|
GC307002-25g | Crystal violet | 產品資料 | 25 g |
| GC307003-5g | Trypan Blue | 產品資料 | 5 g | |
| GC307005 | Alcian Blue8GX | 產品資料 | 1 g | |
| GC307006-5g | Bromphenol Blue | 產品資料 | 5 g | |
| GC307007 | Serva blue G-250 | 產品資料 | 10 g | |
| GC307008-5g | Congo Red | 產品資料 | 5 g | |
| GC307009-25g | Alizarin Red S | 產品資料 | 25 g | |
| GC307010-1g | Giemsa′s Stain | 產品資料 | 1 g | |
| GC307011 | Fuchsin basic | 產品資料 | 5 g | |
| GC307012-10g | Ponceau S | 產品資料 | 10 g | |
| GC307013 | Acid red 26 2R | 產品資料 | 5 g | |
| GC307014 | Direct Red 80 | 產品資料 | 5 g | |
| GC307015-5g | Sudan Black B | 產品資料 | 5 g | |
| GC307017 | Aniline blue | 產品資料 | 5 g | |
| GC307018 | Nuclear fast red | 產品資料 | 5 g | |
| GC307019 | Solvent Blue 38 | 產品資料 | 5 g | |
| GC307020 | Hematoxylin | 產品資料 | 5 g | |
| GC307021 | Solvent Red 43 | 產品資料 | 10 g | |
| GC307022 | Eosin Y, water soluble | 產品資料 | 10 g | |
| GC307023 | Safranin O | 產品資料 | 10 g | |
| GC307024 | Fast Green | 產品資料 | 10 g | |
| GC307026-5g | Pyronin G | 產品資料 | 5 g | |
| GC307027-1g | Janus Green B | 產品資料 | 1 g | |
| GC307030-10g | Brilliant Cresyl Blue | 產品資料 | 10 g | |
| GC307031 | Coomassie brilliant blue R-250 | 產品資料 | 5 g | |
| GC307034-1g | Thionine acetate | 產品資料 | 1 g | |
| GC307035-1g | Cresyl Fast Violet | 產品資料 | 1 g | |
| GC307036-1g | Orcein | 產品資料 | 1 g | |
| GC307037-1g | Carmine | 產品資料 | 1 g | |
| GC307039-10g | Mordant Blue 29 | 產品資料 | 10 g | |
| GC307042-5g | Oil Red O | 產品資料 | 5 g | |
| GC307045-25g | Rhodamine B | 產品資料 | 25 g | |
|
Vitamins
|
GC301015-25g | Vitamin C | 產品資料 | 25 g |
| GC303001 | Folic acid | 產品資料 | 5 g | |
| GC303004 | Ribofavin | 產品資料 | 25 g | |
| GC303005-5g | VitaminB6 | 產品資料 | 5 g | |
| GC303006-25g | VitaminB3 | 產品資料 | 25 g | |
| GC303008 | VitaminB12 | 產品資料 | 1 g | |
| GC303011-25mg | NADPH-Na4 | 產品資料 | 25 mg | |
| GC303013-250mg | β-nicotinamide adenine dinucleotide NAD | 產品資料 | 250 mg | |
| GC303014-250mg | NADH-Na2 | 產品資料 | 250 mg | |
|
Antibiotics
|
GC301002 | Streptozocin STZ | 產品資料 | 1 g |
| GC301002-100mg | Streptozocin STZ | 產品資料 | 100 mg | |
| GC301003 | Penicillin G Sodium salt | 產品資料 | 1 g | |
| GC301004 | Ampicillin | 產品資料 | 1 g | |
| GC301005 | Streptomycin sulfate | 產品資料 | 5 g | |
| GC301008 | Kanamycin | 產品資料 | 1 g | |
| GC301009 | Kanamycin sulfate | 產品資料 | 5 g | |
| GC301009-1g | Hygromycin B | 產品資料 | 1 g | |
| GC301011 | Geneticin G-418 | 產品資料 | 1 g | |
| GC301013 | Chloramphenicol | 產品資料 | 5 g | |
| GC301013-10mg | Pseudomonic acid | 產品資料 | 10 mg | |
| GC301014-5g | Norfloxacin | 產品資料 | 5 g | |
| GC301016 | Cisplatin | 產品資料 | 100 mg | |
| GC301017-100mg | Sirolimus | 產品資料 | 100 mg | |
|
Heterocyclic compounds
|
GC207001 | Imidazole | 產品資料 | 10 g |
| GC207002 | PMSF | 產品資料 | 5 g | |
| GC207003 | Freund’s Adjuvant Complete | 產品資料 | 10 mL | |
| GC207004 | Freund’s Adjuvant Incomplete | 產品資料 | 10 mL | |
|
Salt
|
GC201001 | Guanidine HCl | 產品資料 | 500 g |
| GC201002 | Guanidine thiocyanate | 產品資料 | 500 g | |
|
Sugar Alcohols
|
GC205001 | L(+)-Lactic acid | 產品資料 | 100 g |
| GC205002 | Pyruvic acid sodium salt | 產品資料 | 25 g | |
| GC205003 | D-Glucose, anhydrous | 產品資料 | 500 g | |
| GC205004-10g | D(+)-Trehalose dihydrate | 產品資料 | 10 g | |
| GC205005 | D(+)- Galactose | 產品資料 | 100 g | |
| GC205006-10g | D-(-)Arabinose | 產品資料 | 10 g | |
| GC205007-1g | DTE | 產品資料 | 1 g | |
| GC205008 | Glycerol | 產品資料 | 100 mL | |
| GC205009 | LPS | 產品資料 | 10 mg | |
| GC205010 | DTT | 產品資料 | 1 g | |
| GC205011 | IPTG | 產品資料 | 1 g | |
| GC205013 | Agarose | 產品資料 | 100 g | |
| GC205014 | Sucrose | 產品資料 | 500 g | |
| GC205015 | D-Sorbitol | 產品資料 | 500 g | |
|
Solvent
|
GC203001 | TEMED | 產品資料 | 100 mL |
| GC203002 | DMSO(Dimethyl sulfoxide) | 產品資料 | 100 mL | |
| GC203003 | Urea | 產品資料 | 500 g | |
| GC203005 | DMSO cellular level | 產品資料 | 10 mL | |
|
Complex
|
GC202001 | EDTA | 產品資料 | 500 g |
| GC202002 | EDTA -Na2 | 產品資料 | 500 g | |
|
Buffer salt
|
GC208001 | Tris (Hydroxymethyl) Aminomethane | 產品資料 | 500 g |
| GC208003 | RIS-HCL | 產品資料 | 500 g | |
| GC208004-100g | BIS-TRIS | 產品資料 | 100 g | |
| GC208006 | N-Tris[Hydroxymethyl]Methylglycine | 產品資料 | 100 g | |
| GC208007 | 4-propanesulfonyl morpholine | 產品資料 | 100 g | |
| GC208008-25g | HEPPS | 產品資料 | 25 g | |
| GC208009 | HEPES, Free acid | 產品資料 | 100 g | |
| GC208012-1g | TCEP·HCL | 產品資料 | 1 g | |
|
Surfactant
|
GC204001 | Tween-80 | 產品資料 | 100 mL |
| GC204002 | Tween-20 | 產品資料 | 100 mL | |
| GC204003 | Triton X-100 | 產品資料 | 100 mL | |
| GC204004 | Sodium dodecylsulfate | 產品資料 | 500 g | |
| GC204005 | Sodium dodecylsulfate | 產品資料 | 100 g | |
| GC204006 | Nonidet TM P40 Substitute NP-40 | 產品資料 | 100 g | |
| GC204007 | Deoxycholic acid, sodium salt | 產品資料 | 25 g | |
| GC204009-100ml | APES | 產品資料 | 100 mL | |
|
Amine organics
|
GC206002 | Acrylamide | 產品資料 | 500 g |
| GC206003 | N’-MBA | 產品資料 | 100 g | |
|
Polymer
|
GC209002-250g | PEG 8000 | 產品資料 | 250 g |
| GC209003-250g | PEG 6000 | 產品資料 | 250 g | |
| GC209004-100g | PEG 3350 | 產品資料 | 100 g | |
| GC209005-500g | Poly(ethylene glycol)2000 | 產品資料 | 500 g | |
| GC209006-250g | Poly(ethylene glycol) 20000 | 產品資料 | 250 g | |
|
Inorganic salt
|
GC106001 | Orthoboric acid | 產品資料 | 500 g |
| GC104004 | Sodium bicarbonate | 產品資料 | 500 g | |
| GC108003 | Citric acid monohydrate | 產品資料 | 100 g | |
| GC108004 | Sodium citrate dihydrate | 產品資料 | 100 g | |
| GC102001 | Calcium chloride | 產品資料 | 100 g | |
| GC102002 | Magnesium chloride hexahydrate | 產品資料 | 100 g | |
| GC102003 | Potassium chloride | 產品資料 | 500 g | |
| GC102004 | Sodium chloride | 產品資料 | 500 g | |
| GC101004 | Magnesium Sulfate | 產品資料 | 100 g | |
| GC101013 | Ammonium persulfate | 產品資料 | 25 g | |
| GC105001 | Sodium phosphate monobasic | 產品資料 | 500 g | |
| GC105002 | Sodium Phosphate, Dibasic | 產品資料 | 500 g | |
| GC105003 | Potassium Phosphate Monobasic | 產品資料 | 500 g | |
| GC107001 | Sodium hydroxide | 產品資料 | 100 g | |
| GC306001 | Lodixanol | 產品資料 | 5 g | |
| GC310001-100g | skimmed milk powder | 產品資料 | 100 g |

