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Exosome研究專題Exosome Research

2015-8-19  閱讀(3313)

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關(guān)鍵詞:SBI,,Exosome,,囊泡,膜性小囊泡,,Exosome抽提,,Exosome免疫純化,Exosome抗體,,Exosome RNA

Exosome研究專題Exosome Research

Exosome是由多種活細(xì)胞分泌的50-100nm的膜性小囊泡,,來源于晚期核內(nèi)體(也成為多囊泡體)的囊泡,是由細(xì)胞內(nèi)多泡體(MVBs)出芽形成,,再與細(xì)胞膜融合后釋放到細(xì)胞外基質(zhì)中,。幾乎所有類型的細(xì)胞都能分泌,廣泛存在于各種體液中,。不同細(xì)胞來源的Exosome所含有的具體成分不盡相同,,根據(jù)分泌的細(xì)胞類型不同,在血液,、尿液,、羊水、惡性腫瘤,、腹水等動(dòng)物體液中的Exosome通常含有特定的miRNA和蛋白質(zhì),,因此,Exosome為研究潛在的各種biomarker提供了很好的生物學(xué)材料,。

Exosome參與調(diào)控重要的細(xì)胞生理活動(dòng),,在免疫應(yīng)答,、凋亡、血管生成,、炎癥反應(yīng),、凝結(jié)過程中的作用均有報(bào)道,可以成為多種疾病的早期診斷標(biāo)記物,,也能作為靶向藥物的載體進(jìn)行疾病治療,。作為囊泡的一種,Exosome受到越來越多的關(guān)注,。2013年諾貝爾獎(jiǎng)揭曉,,美國(guó)、德國(guó)3位科學(xué)家James E. Rothman, Randy W. SchekmanThomas C. Sudhof發(fā)現(xiàn)細(xì)胞內(nèi)的主要運(yùn)輸系統(tǒng)-囊泡運(yùn)輸?shù)恼{(diào)節(jié)機(jī)制",,榮獲2013年諾貝爾生理學(xué)或醫(yī)學(xué)獎(jiǎng),。這一獎(jiǎng)項(xiàng)的授予,無(wú)疑將囊泡的研究推向了新的高潮,。


一、Exosome抽提

SBI公司研究和開發(fā)了一款基于多聚體形式的Exosome提取試劑,,能夠快速有效地提取及分離血清和腫瘤組織樣本中的Exosome囊泡,。這些多聚體能夠形成類似于網(wǎng)狀結(jié)構(gòu),從而將60-180nm直徑的微泡分離出來,。其純度和產(chǎn)量皆優(yōu)于上述傳統(tǒng)方法,。

(一)基于血清和血漿樣本



貨號(hào)

產(chǎn)品

規(guī)格

價(jià)格(元)

EXOQ-1

ExoQuickexosome precipitation solution

5ml(75T)

4203.2

EXOQ20A-1

ExoQuickexosome precipitation solution

20ml(300T)

13561


產(chǎn)品特點(diǎn)

  • 無(wú)需費(fèi)時(shí)費(fèi)力地超速離心; 
  • 比起昂貴的磁珠抗體或色譜柱更便宜,;
  • 適用于任何種屬來源的生物液體,;
  • 保持 exosome完好的生物活性;
  • 富集更多的exosome,;
  • 省時(shí),,只需一個(gè)小時(shí)完成;
  • zui少可從100μL的血清或5ml細(xì)胞培養(yǎng)上清/尿液中分離

產(chǎn)品操作步驟(僅作參考,,以說明書為準(zhǔn))

  1. 收集生物液體,,并于3000g離心15分鐘去除細(xì)胞或細(xì)胞碎片;
  2. 將上清轉(zhuǎn)移至另一干凈的滅菌管中,,加入適量的ExoQuick試劑(體積配比見下表),;

孵育時(shí)間

樣本

樣本體積

ExoQuick體積

30分鐘

血清

250ul

63ul

4一個(gè)晚上(12小時(shí))

生物液體

250ul

63ul

  1. 上下顛倒離心管,混勻,;

注意:如果是血漿樣本,,可能會(huì)因?yàn)槔w維蛋白或者其他纖維蛋白原,造成沉淀,。對(duì)于血漿樣本,,請(qǐng)參考:

Pacific Hemostasis? Thromboplatin D (Thermo Cat#10-0356)

  1. 使用1/2體積的凝血活素D與血漿樣本充分混勻,;
  2. 37孵育15min
  3. 10,000rpm室溫離心5min,;
  4. 保存上清,,即血清樣"液體,去除沉淀,;
  5. 按照100ul上清:25ul ExoQuick試劑的比例混勻,。

以下步驟相同。

  1. 4孵育一個(gè)晚上(至少12小時(shí))或者30min(血清樣本),;
  2. 室溫或4 1500g離心30min,,管底可見沉淀;
  3. 去除上清,;
  4. 1500g繼續(xù)離心5min,,小心去除上層的液體組分;
  5. 加入1/10原始體積的無(wú)菌水或無(wú)核酸酶水,,重懸沉淀,。若沉淀難以溶解,可酌量加上直至*溶解,。


(二)基于細(xì)胞培養(yǎng)上清,、組織、尿液樣本



貨號(hào)

產(chǎn)品

規(guī)格

價(jià)格(元)

EXOTC10A-1

ExoQuick TC exosome precipitation solution

10ml(10T)

4189

EXOTC50A-1

ExoQuick TC exosome precipitation solution

50ml(50T)

14072

注:常溫或藍(lán)冰運(yùn)輸,。

產(chǎn)品操作步驟(僅作參考,,以說明書為準(zhǔn))

1.收集生物液體,并于3000g離心15分鐘去除細(xì)胞或細(xì)胞碎片,;

2.將上清轉(zhuǎn)移至另一干凈的滅菌管中,,加入適量的ExoQuick TC試劑(體積配比見下表);

孵育時(shí)間

樣本

樣本體積

ExoQuick TC體積

一個(gè)晚上(12小時(shí))

尿液

5ml

1ml

4一個(gè)晚上(12小時(shí))

細(xì)胞培養(yǎng)上清

5ml

1ml

3.上下顛倒離心管,,混勻,;

4.4孵育一個(gè)晚上(至少12小時(shí));

5.室溫或4 1500g離心30min,,管底可見沉淀,;

6.去除上清;

7.1500g繼續(xù)離心5min,,小心去除上層的液體組分,;

8.100-500ul buffer重懸沉淀(所用buffer根據(jù)下游的蛋白分析或RNA分析來定)。

(三)Exosome抽提輔助試劑

1.ExoQuick-LP脂蛋白預(yù)處理試劑盒

人類血漿包含著一些微球,、外泌體,、凋亡小體和脂蛋白顆粒的混合物,為了研究血清或血漿中的exosome所包含的miRNA和蛋白,,必須在提取exosome之前盡量去除其它一些顆粒,,特別是脂蛋白顆粒,。的研究表明,高密度脂蛋白和低密度脂蛋白中均包含有miRNA,。為了避免在對(duì)exosomemiRNA研究中引起假陽(yáng)性結(jié)果,,必須盡量去除血清或血漿中的脂蛋白。SBI為您提供ExoQuick-LP試劑盒,,有效去除樣本中的脂蛋白,,并提取血清或血漿中的Exosome

貨號(hào)

產(chǎn)品

規(guī)格

價(jià)格(元)

EXOLP-1

ExoQuick-LP Lipoprotein PreClear&Exosome Precipitation Kit

10T

5751

運(yùn)輸和保存

ExoQuick-LP試劑盒由藍(lán)冰或常溫運(yùn)輸,,收到產(chǎn)品后保存在4,。

2.凝血酶素D試劑

為了避免血漿中的纖維蛋白造成exosome提取過程中的沉淀,因此要用凝血酶素D試劑預(yù)先去除血漿中的纖維蛋白,,從而便于exosome的提取與研究,。

貨號(hào)

產(chǎn)品

規(guī)格

價(jià)格(元)

TMEXO-1

Thrombin Plasma prep for Exosome Precipitation

100T

6347.4

EXOQ5TM-1

ExoQuick Plasma prep and Exosome Precipitation Kit

75T

9471.4

運(yùn)輸與保存

TMEXO-1試劑盒由藍(lán)冰或常溫運(yùn)輸,收到產(chǎn)品后保存在4,。

二,、 Exosome免疫純化與分選

(一)FACS磁珠分選Exosomes

由于Exosomes體積太小而無(wú)法直接用于流式細(xì)胞分析,SBI為您推薦Exo-Flow抗體磁珠試劑盒,,該試劑盒能夠捕獲Exosome特定的表面標(biāo)記蛋白,,利用流式分選技術(shù),從而分離出不同亞型的Exosome,。

試劑盒中提供的9.1μM直徑的Exo-Flow磁珠與傳統(tǒng)的4μM Dynabeads磁珠相比,能夠更好地捕獲Exosome,,特別適用于數(shù)量較少的Exosome樣本,。

常見的Exosome表面marker

Marker Type

Functions

Examples

Tetraspanins

Exosome formation and secretion

CD9, CD63, CD81

Targeting/Adhesion

Exosome maturation and target cell binding

Integrins, ICAM-1, CD31, CD44

Antigen Presentation

Immune modulation, anergy and priming

MHC I/II, HLA-G

Membrane transport and fusion

Exosome biogenesis, secretion and downstream cell fusion

SNAP, Annexins, Rab5b

產(chǎn)品特點(diǎn)

  • 表面積大,磁珠捕獲能力增強(qiáng),;
  • 選擇性捕獲和純化Exosome,;
  • 多種標(biāo)記抗體供選擇;
  • FITC標(biāo)記的流式應(yīng)用,;
  • 可自由配備標(biāo)記抗體,。

試劑盒組分(10次反應(yīng))

Streptavidin Magnetic Beads, 9.1 μm

200 mL at 10 mg/mL

Biotinylated capture antibody, 100 ng/mL in PBS (multiple varieties)

100 mL

Bead Wash buffer

60 mL

Exosome Stain Buffer

3 mL

Exo-FITC Universal exosome stain

100 mL

Exosome Elution Buffer

3 mL

Magnetic stand (optional, cat# EXOFLOW700A-1)

1 Stand

產(chǎn)品信息

貨號(hào)

名稱

規(guī)格

價(jià)格(元)

EXOFLOW100A-1

CD9 Exo-Flow capture kit (Magnetic streptavidin beads, CD9-biotin capture antibody, Wash and Elution Buffers, Exo-FITC stain)

10 reactions

5736.8

EXOFLOW150A-1

TetraspaninExo-Flow combo capture kit (Magnetic streptavidin beads, CD9, CD63, and CD81-biotin capture antibodies, Wash and Elution Buffers, Exo-FITC stain)

10 reactions

8718.8

EXOFLOW200A-1

CD31 Exo-Flow capture kit (Magnetic streptavidin beads, CD31-biotin capture antibody, Wash and Elution Buffers, Exo-FITC stain)

10 reactions

5736.8

EXOFLOW210A-1

CD44 Exo-Flow capture kit (Magnetic streptavidin beads, CD44-biotin capture antibody, Wash and Elution Buffers, Exo-FITC stain)

10 reactions

5736.8

EXOFLOW300A-1

CD63 Exo-Flow capture kit (Magnetic streptavidin beads, CD63-biotin capture antibody, Wash and Elution Buffers, Exo-FITC stain)

10 reactions

5736.8

EXOFLOW400A-1

CD81 Exo-Flow capture kit (Magnetic streptavidin beads, CD81-biotin capture antibody, Wash and Elution Buffers, Exo-FITC stain)

10 reactions

5736.8

EXOFLOW500A-1

Rab5b Exo-Flow capture kit (Magnetic streptavidin beads, Rab5b-biotin capture antibody, Wash and Elution Buffers, Exo-FITC stain)

10 reactions

5736.8

EXOFLOW600A-1

HLA-G Exo-Flow capture kit (Magnetic streptavidin beads, HLA-G-biotin capture antibody, Wash and Elution Buffers, Exo-FITC stain)

10 reactions

5736.8

EXOFLOW610A-1

CD14 Exo-Flow capture kit (Magnetic streptavidin beads, CD14-biotin capture antibody, Wash and Elution Buffers, Exo-FITC stain)

10 reactions

5736.8

EXOFLOW620A-1

CD68 Exo-Flow capture kit (Magnetic streptavidin beads, CD68-biotin capture antibody, Wash and Elution Buffers, Exo-FITC stain)

10 reactions

5736.8

EXOFLOW630A-1

EpCAMExo-Flow capture kit (Magnetic streptavidin beads, EpCAM-biotin capture antibody, Wash and Elution Buffers, Exo-FITC stain)

10 reactions

5736.8

EXOFLOW650A-1

Alpha-2-Macroglobulin (A2M) Exo-Flow capture kit (Magnetic streptavidin beads, A2M-biotin capture antibody, Wash and Elution Buffers, Exo-FITC stain)

10 reactions

5736.8

EXOFLOW700A-1

Exo-Flow Multifunctional Magnetic Stand

1 Kit

3947.6

EXOFLOW800A-1

Exo-FITC Exosome FACS stain

20 reactions

2158.4

EXOFLOW810A-1

Exo-APC Exosome FACS stain

20 reactions

2158.4

CSFLOWBASICA-1

Basic Exo-Flow kit without any coupled antibodies (Uncoupled magnetic streptavidin beads, Wash and Elution Buffers, Exo-FITC stain)

100 reactions

9869

(二)IP高通量沉淀血清Exosomes

Exo-Flow 96/32 IP試劑盒可從血漿樣本、使用ExoQuick-TC或超速離心富集的細(xì)胞培養(yǎng)上清(尿液,、腦脊髓液等)exosomes產(chǎn)物樣本中高通量,、直接免疫沉淀exosomes

試劑盒中的磁珠已經(jīng)預(yù)結(jié)合了CD9,、CD63或者CD81用于選擇性捕獲特定的exosomes亞型,,直接將上述樣本添加入磁珠中即可免疫沉淀exosomes96孔板或32孔板形式產(chǎn)品可用于同時(shí)處理多個(gè)樣本,。得到exosomes具有完整形態(tài),,可用于下游exosomes RNA和蛋白分析,。

三、Exosome驗(yàn)證分析

SBI ExoELISA產(chǎn)品線提供exosome常見的標(biāo)記蛋白CD63,、CD9,、CD81Hsp70抗體,這4種抗體也可以以試劑盒的形式提供(Western blot sampler kit (Catalog# EXOAB-KIT-1))和ELISA試劑盒,。

(一)Exosome抗體(Western Blot分析)

貨號(hào)

產(chǎn)品名稱

規(guī)格

價(jià)格(元)

EXOAB-CD63A-1

Anti-CD63 Antibody (rabbit anti-human, mouse, rat, horse) with goat anti-rabbit HRP secondary antibody

25 ul

1902.8

EXOAB-CD81A-1

Anti-CD81 Antibody (rabbit anti-human, mouse, rat) with goat anti-rabbit HRP secondary antibody

25 ul

1902.8

EXOAB-CD9A-1

Anti-CD9 Antibody (rabbit anti-human, mouse, rat) with goat anti-rabbit HRP secondary antibody

25 ul

1902.8

EXOAB-Hsp70A-1

Anti-Hsp70 Antibody (rabbit anti-human, mouse, rat) with goat anti-rabbit HRP secondary antibody

25 ul

1902.8

EXOAB-CETP-1

Anti-CETP Antibody (polyclonal rabbit anti-human, mouse, rat) with goat anti-rabbit HRP secondary antibody

25 ul

1902.8

EXOAB-KIT-1

ExoAb Antibody Kit (CD9, CD63, CD81, Hsp70 antibodies, rabbit anti-human, mouse, rat) with goat anti-rabbit HRP secondary antibody

25 ul each

6475.2

EXOAB-FLOT1-1

Anti-FLOT1 Antibody (rabbit anti-human, mouse, rat) with goat anti-rabbit HRP secondary antibody

25 ul

1902.8

EXOAB-EPCAM1-1

Anti-EpCam Antibody (rabbit anti-human, mouse, rat) with goat anti-rabbit HRP secondary antibody

25 ul

1902.8

EXOAB-TSG101-1

Anti-TSG101 Antibody (rabbit anti-human, mouse, rat) with goat anti-rabbit HRP secondary antibody

25 ul

1902.8

EXOAB-CXCR4-1

Anti-CXCR4 Antibody (rabbit anti-human, mouse, rat) with goat anti-rabbit HRP secondary antibody

25 ul

1902.8

EXOAB-VMTN-1

Anti-Vimentin Antibody (rabbit anti-human, mouse, rat) with goat anti-rabbit HRP secondary antibody

25 ul

1902.8

EXOAB-ALIX-1

Anti-ALIX Antibody (rabbit anti-human, mouse, rat) with goat anti-rabbit HRP secondary antibody

25 ul

1902.8

EXOAB-ANXA5-1

Anti-ANXA5 Antibody (rabbit anti-human, mouse, rat) with goat anti-rabbit HRP secondary antibody

25 ul

1902.8

Exosome抗體運(yùn)輸與保存:藍(lán)冰運(yùn)輸,,收到產(chǎn)品后4保存,長(zhǎng)期保存可置于-20.收到產(chǎn)品后有效期為6個(gè)月以上,。

(二)ELISA定量分析

貨號(hào)

產(chǎn)品名稱

規(guī)格

價(jià)格(元)

EXOEL-CD63A-1

Exosome ELISA Complete Kit (CD63 detection)

96 reactions

8378

EXOEL-CD81A-1

Exosome ELISA Complete Kit (CD81 detection)

96 reactions

8378

EXOEL-CD9A-1

Exosome ELISA Complete Kit (CD9 detection)

96 reactions

8378

EXOCET96A-1

EXOCET Exosome Quantitation Kit

96 reactions

5609

EXOAB-POS-1

Human Exosome lysate positive protein control (10ug/ul)

50 ul

3436.4

EXOEL-BB-20

Exosome binding buffer for ELISAs

20 ml

1902.8

產(chǎn)品特點(diǎn)

?         3Exosome表面特殊蛋白檢測(cè)試劑盒供選擇:CD63,,CD9CD81,;

?         間接ELISA法,,信號(hào)經(jīng)過兩步放大,靈敏度大大提高,;

?         適用于所有類型細(xì)胞分泌的Exosome,;

?         可檢測(cè)任何分離方法得到的Exosome

運(yùn)輸與保存:試劑盒由藍(lán)冰運(yùn)輸,,4保存,,其中,ExoELISA蛋白標(biāo)準(zhǔn)品需保存在-20,,建議蛋白樣本分裝,,以避免反復(fù)凍融。有效期為收到產(chǎn)品后6個(gè)月,。

四,、Exosome功能研究

(一)熒光標(biāo)記Exosome

SBI新產(chǎn)品Exo-Glow試劑盒,能夠熒光標(biāo)記內(nèi)源的Exosome RNAs為紅色,,標(biāo)記內(nèi)部Exosome蛋白為綠色,,從而達(dá)到使用熒光顯微鏡實(shí)時(shí)追蹤Exosome細(xì)胞內(nèi)相互作用和物質(zhì)運(yùn)輸。

貨號(hào)

產(chǎn)品名稱

規(guī)格

價(jià)格

EXOR100A-1

Exo-Red exosome RNA fluorescent label

20 rxns

4047

EXOG200A-1

Exo-Green exosome protein fluorescent label

20 rxns

4047

EXOC300A-1

Exo-Red + Exo-Green exosome cargo fluorescent label Combo Pack (10 rxns of each label)

20 rxns

4615

(二)利用Cyto-Trace讓細(xì)胞分泌帶有熒光的Exosome

四次跨膜蛋白CD9,、CD63CD81蛋白為Exosomes常見的生物標(biāo)記蛋白,。通過CD63CD9 Cyto-Trace質(zhì)粒,可以讓您研究的靶細(xì)胞分泌帶有綠色或者紅色熒光的Exosomes,,以便下游功能性運(yùn)輸研究,。

貨號(hào)

產(chǎn)品名稱

規(guī)格

價(jià)格

CYTO120-PA-1

pCT-CD63-GFP (pCMV, Exosome/Secretory, CD63 Tetraspanin Tag)

10ug

7540.2

CYTO120R-PA-1

pCT-CD63-RFP (pCMV, Exosome/Secretory, CD63 Tetraspanin Tag)

10 ug

7540.2

CYTO122-PA-1

pCT-CD9-GFP (pCMV, Exosome/Secretory, CD9 Tetraspanin Tag)

10 ug

7540.2

CYTO123-PA-1

pCT-CD9-RFP (pCMV, Exosome/Secretory, CD9 Tetraspanin Tag)

10 ug

7540.2

CYTO124-PA-1

pCT-CD81-GFP (pCMV, Exosome/Secretory, CD81 Tetraspanin Tag)

10 ug

7540.2

CYTO125-PA-1

pCT-CD81-RFP (pCMV, Exosome/Secretory, CD81 Tetraspanin Tag)

10 ug

7540.2

(三)Exosome轉(zhuǎn)染試劑

新型核酸轉(zhuǎn)染試劑Exo-Fect,可以將核酸直接轉(zhuǎn)染至分離得到的Exosome中,。轉(zhuǎn)染的si/miRNA,,mRNA,甚至質(zhì)粒DNA,,可以通過轉(zhuǎn)染的Exosome進(jìn)入靶細(xì)胞,。

只需要將目的核酸與Exo-Fect轉(zhuǎn)染試劑,、分離到的Exosome簡(jiǎn)單混合,就能形成Exosome核酸運(yùn)載復(fù)合體,。整個(gè)轉(zhuǎn)染過程檢測(cè),,不到1小時(shí)即可完成核酸轉(zhuǎn)染入Exosome過程。

貨號(hào)

產(chǎn)品名稱

規(guī)格

價(jià)格

EXFT10A-1

Exo-FectExosome Transfection Kit

10 reactions

2769

EXFT20A-1

Exo-FectExosome Transfection Kit

20 reactions

4970


五,、Exosome RNA全面研究

Exosome RNA提取試劑盒專為exosome RNA抽提設(shè)計(jì),,的富集microRNA和其他小片段RNA。分別針對(duì)血液樣本和體液樣本設(shè)計(jì)兩款RNA提取試劑盒,,特異性更高,,適用所有類型細(xì)胞分泌的,以及任何分離方法得到的exosome RNA提取,。操作簡(jiǎn)單,、方便,1h完成血清exosome RNA提取,,無(wú)需苯酚/氯仿抽提,。

純化的exosome RNA可以做進(jìn)一步的microRNA篩選、芯片或二代測(cè)序等下游分析,。但是由于exosome RNA含量總體水平偏低,,因此需在進(jìn)行下游分析之前進(jìn)行exosome RNA的預(yù)擴(kuò)增。

貨號(hào)

產(chǎn)品名稱

規(guī)格

價(jià)格

RA800A-1

Complete SeraMirExosome RNA Amplification kit (5ml ExoQuick, 20 exoRNA columns, cDNA synthesis and amplification components)

20 reactions

10280.8

RA800TC-1

Complete SeraMirExosome RNA Amplification kit from Media and Urine (10ml ExoQuick-TC, 10 exoRNA columns, cDNA synthesis and amplification components)

10 preps

7227.8

RA806TC-1

SeraMirExosome RNA Purification only kit for Media and Urine (10ml ExoQuick-TC and 10 exoRNA columns)

10 preps

6006.6

RA808A-1

SeraMirExosome RNA Purification Column kit (20 exoRNA columns)

20 preps

4189

RA810A-1

Human SeraMirExosome RNA 384 microRNA qPCR Profiler Assay Set

20 profiles

14824.8

RA820A-1

Human Complete SeraMirExosome RNA Amplification and Profiling Kit (contains cat# RA800A-1, RA80-1, RA810A-1 components)

20 profiles

14824.8

RA820TC-1

Human Complete SeraMirExosome RNA Amplification and Profiling Kit for Media and Urine (contains cat# RA800TC-1 with 50ml ExoQuick-TC, RA80-1 and RA810A-1 components)

20 profiles

18644.6

RA811A-1

Mouse SeraMirExosome RNA 384 microRNA qPCR Profiler Assay Set

20 profiles

5708.4

RA821A-1

Mouse Complete SeraMirExosome RNA Amplification and Profiling Kit (contains cat# RA800A-1, RA80-1, RA811A-1 components)

20 profiles

14824.8

RA821TC-1

Mouse Complete SeraMirExosome RNA Amplification and Profiling Kit for Media and Urine (contains cat# RA800TC-1 with 50ml ExoQuick-TC, RA80-1 and RA811A-1 components)

20 profiles

18644.6

RA812A-1

Rat SeraMirExosome RNA 384 microRNA qPCR Profiler Assay Set

20 profiles

5708.4

RA822A-1

Rat Complete SeraMirExosome RNA Amplification and Profiling Kit (contains cat# RA800A-1, RA80-1, RA812A-1 components)

20 profiles

14824.8

RA822TC-1

Rat Complete SeraMirExosome RNA Amplification and Profiling Kit for Media and Urine (contains cat# RA800A-1, RA80-1, RA812A-1 and EXOTC50A-1 components) 20 profiles

20 profiles

18644.6

RA80-1

SeraMir Control spike-in Small RNA and qPCR assay

100 assays

2215.2

RA800P-3

SeraMir 3'-Universal Primer bonus pack (for an additional 10,000 qPCR reactions)

1.2 ml

1533.6







品牌介紹

美國(guó)SBISystem biosciences)公司由前Clontech公司的創(chuàng)始人Dr. Ken Fong所創(chuàng)立,。SBI一直致力為生命科學(xué)前沿領(lǐng)域提供各種的研究工具和產(chǎn)品,。System Biosciences (SBI) 致力于開發(fā)*、革新的技術(shù),,為客戶研究蛋白組學(xué)和基因組學(xué)功能提供研究工具,。SBI又稱為慢病毒公司",提供各種基于慢病毒的所有產(chǎn)品,,包括慢病毒的包裝系統(tǒng),病毒濃縮液,,shRNAmicroRNA功能研究的慢病毒載體,,文庫(kù)和高滴度的病毒,同時(shí)還提供各種基于慢病毒的延伸產(chǎn)品,,在干細(xì)胞研究領(lǐng)域提供諸如iPS細(xì)胞,,的iPS誘導(dǎo)系統(tǒng)還有檢測(cè)iPS細(xì)胞分化的實(shí)時(shí)監(jiān)測(cè)系統(tǒng)。SBI同時(shí)秉承Clontech在分子克隆領(lǐng)域的成功經(jīng)驗(yàn),,推出了一系列的克隆工具,,如革命性的無(wú)酶連接系統(tǒng)(Cold-fusion Kit),真正做到了5min連接外源基因到載體,。     

     同時(shí)SBI還是一家在范圍內(nèi)很有名的服務(wù)公司,,曾為多家企業(yè)和科研院所提供各種病毒構(gòu)建,,和干細(xì)胞服務(wù)等。





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