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細胞凋亡檢測試劑盒

2017-7-4  閱讀(596)

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 Annexin V-FITC/PI Apoptosis Detection Kit 細胞凋亡檢測試劑盒

 

產(chǎn)品信息

產(chǎn)品名稱

貨號

規(guī)格

儲存

價格(元)

*(元)

Annexin V-FITC/PI Apoptosis Detection Kit 

Annexin V-FITC/PI 細胞凋亡檢測試劑盒 

40302ES20

20T

-20℃避光

480.00

456.00

40302ES50

50T

-20℃避光

960.00

686.00

40302ES60

100T

-20℃避光

1680.00

986.00

產(chǎn)品描述

Annexin V-FITC/PI細胞凋亡檢測試劑盒是用FITC標(biāo)記的Annexin V作為探針,來檢測細胞早期凋亡的發(fā)生

其檢測原理為:在正常的活細胞中,磷脂酰絲氨酸(phosphotidylserine,PS)位于細胞膜的內(nèi)側(cè),但在早期凋亡的細胞中,PS 從細胞膜的內(nèi)側(cè)翻轉(zhuǎn)到細胞膜的表面,暴露在細胞外環(huán)境中。Annexin-Ⅴ(膜聯(lián)蛋白-V)是一種分子量為35-36 kDa的Ca2+ 依賴性磷脂結(jié)合蛋白,能與PS高親和力結(jié)合可通過細胞外側(cè)暴露的磷脂酰絲氨酸與凋亡早期細胞的胞膜結(jié)合。

另外,本試劑盒中還提供了碘化丙啶(Propidium Iodide,PI)用來區(qū)分存活的早期細胞和壞死或晚期凋亡細胞。PI是一種核酸染料,它不能透過正常細胞或早期凋亡細胞的完整的細胞膜,但可以透過凋亡晚期和壞死細胞的細胞膜而使細胞核染紅。因此,將Annexin V與PI聯(lián)合使用時,PI 則被排除在活細胞(Annexin V-/PI-)和早期凋亡細胞(Annexin V+/PI-)之外,而晚期凋亡細胞和壞死細胞同時被FITC 和PI 結(jié)合染色呈現(xiàn)雙陽性(Annexin V+/PI+)。

本試劑盒可用于流式細胞儀、熒光顯微鏡進行檢測。

產(chǎn)品組分

編號

組分

產(chǎn)品編號/規(guī)格

40302ES20(20T)

40302ES5050T

40302ES60100T

40302-A

Annexin V-FITC

100 μL

250 μL

250 μL×2

40302-B

PI Staining Solution

200 μL

500 μL

500 μL×2

40302-C

1×Binding Buffer

10 mL

25 mL

25 mL×2

運輸與保存方法

冰袋(wet ice)運輸。-20℃避光長期保存,避免反復(fù)凍融。

【注】:如果需要在短時間內(nèi)多次重復(fù)使用,可以在4℃避光保存,半年有效。

注意事項

1)由于細胞凋亡是一個快速的過程,建議樣品在染色后1小時之內(nèi)進行分析。

2) 對于貼壁細胞,消化是一個關(guān)鍵步驟。貼壁細胞誘導(dǎo)細胞凋亡時如有漂浮細胞,需收集漂浮細胞和貼壁細胞后合并染色。處理貼壁細胞時要小心操作,盡量避免人為的損傷。胰酶消化時間過短,細胞需要用力吹打才能脫落,容易造成細胞膜的損傷;PI攝入過多,消化時間過長,細胞膜同樣易造成損傷,甚至?xí)绊懠毎ど狭字=z氨酸與Annexin V-FITC的結(jié)合。消化時將胰酶鋪滿孔板底后,輕搖使胰酶與細胞充分接觸,然后倒掉大部分胰酶,利用剩余少量胰酶再消化一段時間,待細胞間空隙增大,瓶底呈花斑狀即可終止。在消化液中盡量不用EDTA,EDTA會影響Annexin V與PS的結(jié)合。

3) 實驗中如需要固定細胞,比如在檢測凋亡的同時檢測細胞周期,只能選用Annexin V-FITC,而不能選用Annexin V-EGFP,因為在固定過程中EGFP會變性導(dǎo)致喪失激發(fā)熒光的能力。固定前需要先將細胞與Annexin V-FITC進行孵育,并用Binding buffer洗掉未結(jié)合的Annexin V-FITC。因為固定過程中細胞通透性增加會產(chǎn)生細胞碎片,可以和Annexin V結(jié)合,對結(jié)果產(chǎn)生干擾。

4)如果樣品來源于血液,請務(wù)必除去血液中的血小板。因為血小板含有PS,能與Annexin V結(jié)合,從而干擾實驗結(jié)果??梢允褂煤蠩DTA的緩沖劑并在200 g離心洗去血小板。

5)試劑在開蓋前請短暫離心,將蓋內(nèi)壁上的液體甩至管底,避免開蓋時液體灑落。

6)Annexin V-FITC和PI是光敏物質(zhì),在操作時請注意避光。

操作方法

1.1 樣品染色

1)懸浮細胞300 g,4離心5 min收集細胞。

貼壁細胞:用不含EDTA的胰酶消化后,300 g4離心5 min收集細胞。胰酶消化時間不宜過長,以防引起假陽性。

2)用預(yù)冷的PBS洗滌細胞2次,每次均需300 g4離心5 min。收集15×105細胞。

3)吸棄PBS,加入100 μL 1×Binding Buffer重懸細胞。

4)加入5 μL Annexin V-FITC10 μLPI Staining Solution,輕輕混勻。

5)避光、室溫反應(yīng)10-15 min

6)加入400 μL 1×Binding Buffer,混勻后放置于冰上,樣品在1小時內(nèi)用流式細胞儀或熒光顯微鏡檢測。

為了避免洗滌細胞時損失細胞,在吸液時可以用大的Tip頭套上小的Tip頭吸液。

1.2 樣品分析

A.流式細胞儀分析:

FITCzui大激發(fā)波長為488 nm,zui大發(fā)射波長525 nm,F(xiàn)ITC的綠色熒光在FL1通道檢測;PI-DNA復(fù)合物的zui大激發(fā)波長為535 nm,zui大發(fā)射波長為615 nm,PI的紅色熒光在FL2或FL3通道檢測。用CellQuest等軟件進行分析,繪制雙色散點圖(two-color dot plot),FITC為橫坐標(biāo),PI為縱坐標(biāo)。典型的實驗中,細胞可以分成三個亞群,活細胞僅有很低強度的背景熒光,早期凋亡細胞僅有較強的綠色熒光,晚期凋亡細胞有綠色和紅色熒光雙重染色。

B.熒光顯微鏡分析:

1滴一滴用Annexin V-FITC/PI雙染的細胞懸液于載玻片上,并用蓋玻片蓋上細胞。

對于貼壁細胞,可直接用蓋玻片培養(yǎng)細胞并誘導(dǎo)細胞凋亡。

2在熒光顯微鏡下用雙色濾光片觀察。Annexin V-FITC熒光信號呈綠色,PI熒光信號呈紅色。

數(shù)據(jù)展示

數(shù)據(jù)來源:上海交通大學(xué)納米生物工程研究所;

文章信息Cui, D., et al., Regression of Gastric Cancer by Systemic Injection of RNA Nanoparticles Carrying both Ligand and siRNA. Sci Rep, 2015. 5: p. 10726.

細胞類型MGC803 cells;

所用試劑:Yeasen,Cat:40302,Annexin V-FITC/PI Apoptosis Detection Kit 

“Fig5.Determination of cell death by flow cytometry of Annexin V-FITC/PI staining in MGC803 cells transfected with 25 nM FA-pRNA-3WJ-BRCAA1siRNA or FA-pRNA-3WJ-Scram-siRNA for 48 h.”

  

數(shù)據(jù)來源:中山大學(xué);

文章信息:Zhou, T., et al., Mild hypothermia protects against oxygen glucose deprivation/reoxygenation-induced apoptosis via the Wnt/beta-catenin signaling pathway in hippocampal neurons. Biochem Biophys Res Commun, 2017. 486(4): p. 1005-1013.

細胞類型Hippocampal neurons;

所用試劑:Yeasen,Cat:40302 ,Annexin V-FITC/PI Apoptosis Detection Kit。

“Fig. 3. Wnt/b-catenin mediates the expression levels of apoptosis-related proteins and the protective effects of mild hypothermia against OGD/R-induced apoptosis。scatter diagram of PI/Annexin V gating from different groups. a. Control; b.OGD/R; c.OGD/R MH(24 h); d.OGD/R MH(24 h)tDkk1; e. OGD/R Dkk1.”

參考文獻

[1].Wei, W.J., et al., Propranolol sensitizes thyroid cancer cells to cytotoxic effect of vemurafenib. Oncol Rep, 2016. 36(3): p. 1576-84.

[2].Wang, Q., et al., Fluorescent carbon dots as an efficient siRNA nanocarrier for its interference therapy in gastric cancer cells. J Nanobiotechnology, 2014. 12: p. 58.

[3].Zhang, C., et al., Insights into the distinguishing stress-induced cytotoxicity of chiral gold nanoclusters and the relationship with GSTP1. Theranostics, 2015. 5(2): p. 134-49.

[4].Tong, K., C. Xin and W. Chen, Isoimperatorin induces apoptosis of the SGC-7901 human gastric cancer cell line via the mitochondria-mediated pathway. Oncol Lett, 2017. 13(1): p. 518-524.

[5].Tian, Y., et al., Tobacco Mosaic Virus-Based 1D Nanorod-Drug Carrier via the Integrin-Mediated Endocytosis Pathway. ACS Appl Mater Interfaces, 2016. 8(17): p. 10800-7.

[6].Hou, W., et al., pH-Sensitive self-assembling nanoparticles for tumor near-infrared fluorescence imaging and chemo-photodynamic combination therapy. Nanoscale, 2016. 8(1): p. 104-16.

[7].Hou, W., et al., pH-Sensitive self-assembling nanoparticles for tumor near-infrared fluorescence imaging and chemo-photodynamic combination therapy. Nanoscale, 2016. 8(1): p. 104-16.

[8].Yu, H., et al., Decreased proliferative, migrative and neuro-differentiative potential of postnatal rat enteric neural crest-derived cells during culture in vitro. Exp Cell Res, 2016. 343(2): p. 218-22.

[9].Li, J., et al., Phenylethanoid Glycosides from Cistanche tubulosa Inhibits the Growth of B16-F10  Cells both in Vitro and in Vivo by Induction of Apoptosis via Mitochondria-dependent Pathway. J Cancer, 2016. 7(13): p. 1877-1887.

[10]. Yang, Y., et al., Human CIK Cells Loaded with Au Nanorods as a Theranostic Platform for Targeted Photoacoustic Imaging and Enhanced Immunotherapy and Photothermal Therapy. Nanoscale Res Lett, 2016. 11(1): p. 285.

[11]. Zhuang, Y.T., et al., IL-6 induced lncRNA MALAT1 enhances TNF-alpha expression in LPS-induced septic cardiomyocytes via activation of SAA3. Eur Rev Med Pharmacol Sci, 2017. 21(2): p. 302-309.

[12]. Wang, P., et al., Blood Plasma of Patients with Parkinsons Disease Increases Alpha-Synuclein Aggregation and Neurotoxicity. Parkinsons Dis, 2016. 2016: p. 7596482.

[13]. Ge, G.F., et al., Baicalein attenuates vinorelbine-induced vascular endothelial cell injury and chemotherapeutic phlebitis in rabbits. Toxicol Appl Pharmacol, 2017. 318: p. 23-32.

[14]. Ge, G.F., et al., Baicalein attenuates vinorelbine-induced vascular endothelial cell injury and chemotherapeutic phlebitis in rabbits. Toxicol Appl Pharmacol, 2017. 318: p. 23-32.

[15]. Cai, G., et al., Galectin-3 induces ovarian cancer cell survival and chemoresistance via TLR4 signaling activation. Tumour Biol, 2016. 37(9): p. 11883-11891.

[16]. Zhou, T., et al., Mild hypothermia protects against oxygen glucose deprivation/reoxygenation-induced apoptosis via the Wnt/beta-catenin signaling pathway in hippocampal neurons. Biochem Biophys Res Commun, 2017. 486(4): p. 1005-1013.

[17]. Cui, D., et al., Regression of Gastric Cancer by Systemic Injection of RNA Nanoparticles Carrying  both Ligand and siRNA. Sci Rep, 2015. 5: p. 10726.

[18]. Zhang, C., et al., A New Ligustrazine Derivative-Selective Cytotoxicity by Suppression of NF-kappaB/p65 and COX-2 Expression on Human Hepatoma Cells. Part 3. Int J Mol Sci, 2015. 16(7): p. 16401-13.

[19]. Wu, Z., et al., LncRNA-N1LR Enhances Neuroprotection Against Ischemic Stroke Probably by Inhibiting p53 Phosphorylation. Mol Neurobiol, 2016.

[20]. Ni, C., et al., A novel mutation in TRPV3 gene causes atypical familial Olmsted syndrome. Sci Rep, 2016. 6: p. 21815.

[21]. Aipire, A., et al., Glycyrrhiza uralensis water extract enhances dendritic cell maturation and antitumor efficacy of HPV dendritic cell-based vaccine. Sci Rep, 2017. 7: p. 43796.

[22]. Liu, H., et al., Targeting heat-shock protein 90 with ganetespib for molecularly targeted therapy of gastric cancer. Cell Death Dis, 2015. 6: p. e1595.

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