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    人血管生成素定量分析酶聯免疫檢測試劑盒
    貨號:HME035
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    • 常見問題

    上海傳秋生物科技有限公司 www.antidotetoaging.com

    人血管生成素定量分析酶聯免疫檢測試劑盒

    本試劑盒僅供科研使用。用于體外定量檢測人血清、血漿或細胞培養上清液中的血管生成素濃度。使用前請仔細閱讀說明書并檢查試劑組

    分是否完整。如有產品包裝破損或質量投拆,請在收到貨一個月之內聯系我們。

    人血管生成素簡介:

    人血管生成素是一種非糖基化的多肽,有 123 個氨基酸殘基組成,分子量為 14 kDa,含有三個鏈內二硫鍵,屬于核糖核酸酶家族。

    血管生成素一般由血管內皮細胞、平滑肌細胞、成纖維細胞、結腸柱狀上皮細胞、淋巴細胞、腺癌干細胞以及腫瘤細胞系等細胞產生。

    血管生成素通常以分泌蛋白形式進入血液中,其含量高達 60-120 ng / mL。

    血管生成素作為核糖核酸酶與其它的核糖核酸酶家族成員一樣,具有細胞毒性,其機理主要是抑制細胞中蛋白質的合成從而對細胞具

    有毒性。血管生成素也可以通過磷脂酶的活化,刺激毛細血管和臍靜脈內皮細胞生成甘油二酯以及前列腺素的分泌。

    檢測原理:

    本試劑盒采用雙抗體夾心 ELISA 法檢測樣本中血管生成素的濃度。血管生成素捕獲抗體已預包被于酶標板上,當加入標本或參考品時,

    其中的血管生成素會與捕獲抗體結合,其它游離的成分通過洗滌的過程被除去。當加入生物素化的抗人血管生成素抗體后,抗人血管生成

    素抗體與血管生成素接合,形成夾心的免疫復合物,其它游離的成分通過洗滌的過程被除去。隨后加入辣根過氧化物酶標記的親合素。生

    物素與親合素特異性結合,親合素連接的酶就會與夾心的免疫復合物連接起來;其它游離的成分通過洗滌的過程被除去。最后加入顯色劑,

    若樣本中存在血管生成素將會形成免疫復合物,辣根過氧化物酶會催化無色的顯色劑氧化成藍色物質,在加入終止液后呈黃色。通過酶標

    儀檢測,讀其 450nm 處的 OD 值,血管生成素濃度與 OD450值之間呈正比,通過參考品繪制標準曲線,對照未知樣本中 OD 值,即可算出標本

    中血管生成素濃度。

    人血管生成素定量分析酶聯免疫檢測試劑盒組成:

    組分 規格(96T/48T)

    人血管生成素預包被板 12條/6條

    5×標準品稀釋液 20ml/10ml

    人血管生成素標準品 8支/4支(凍干)

    人血管生成素生物素化抗體 10ml/5ml

    親和素連接的HRP酶 10ml/5ml

    濃縮洗滌液 20× 30ml/15ml

    TMB底物 10ml/5ml

    中止液 5ml/3ml

    封板膠紙 3/2張

    說明書 1份

    標本收集:

    1.標本的收集請按下列流程進行操作;

    A.細胞上清標本離心去除懸浮物后即可;

    B.血清標本應是自然凝固后,取上清,避免在冰箱中凝固血液;

    C.血漿標本,推薦用EDTA的方法收集;

    D.若待測樣本不能及時檢測,標本收集后請分裝,凍存于-20℃,避免反復凍融。

    2.血清標本不應添加任何防腐劑或抗凝劑;

    3.標本應清澈透明,檢測前樣本中如有懸浮物應通過離心去除

    4.請勿使用溶血,高血脂或污染的標本檢測,否則結果將不準確。

    注意事項:1.試劑盒請保存在2~8℃。

    2.濃縮洗滌液因在低溫下可能有結晶,請水浴加熱使結晶完全溶解后再配制工作液。

    3.標準品復溶加樣后,剩余部份請丟棄。

    4.底物請勿接觸氧化劑和金屬。

    5.加樣時,請及時更換槍頭,避免交叉污染。

    6.嚴禁混用不同批號的試劑盒組份。

    7.充分混勻對保證反應結果的準性很重要,在加液后請輕輕叩擊邊緣以保證混勻。

    8.室溫反應,請嚴格控制在25-28℃。

    9.洗滌過程是至關重要的,洗滌不充分會使精確度下降并導致結果誤差較大。

    10.試驗中標準品和樣本檢測時建議作雙復孔。

    11.加樣過程中避免氣泡的產生。

    12.血清和血漿標本的檢測時,檢測抗體的孵育時間應適當延長

    檢測前準備工作:

    1.試劑盒自冰箱中取出后應置室溫(25-28℃)平衡 20 分鐘;每次檢測后剩余試劑請及時于 2~8℃保存。

    2.將濃縮洗滌液用雙蒸水或去離子水稀釋(1份加19份水)。

    3. 5×標準品稀釋液用雙蒸水或去離子水稀釋(1份加4份水)。

    4.標準品: 按標簽復溶體積加入1X標準品稀釋液復溶使血管生成素終濃度達到500pg/ml,室溫反應,請嚴格控制在25~28℃,靜置10~15

    分鐘后輕輕混懸(建議抽吸幾次)待徹底溶解,用標準品稀釋液倍比梯度稀釋后依次加入檢測孔中。(標準曲線取七個點,最高濃度為300

    pg/ml,標準品稀釋液直接加入作為0濃度.)

    洗滌方法:

    自動洗板機或人工洗板:每孔洗滌液為300ul,注入與吸出間隔15-30秒。洗板5次。最后一次洗板完成后將板倒扣著在厚吸水紙上用力拍干。

    實驗過程需自備的材料:

    1.不同規格的加樣槍及相應的槍頭;

    2.酶標儀;

    3.自動洗板機;

    4.去離子水或雙蒸水;

    操作步驟:

    1.通過計算并確定一次性實驗所需的板條數,取出所需板條放置在框架內,暫時用不到板條請放回鋁箔袋密封,保存于4℃。

    2.建議設置本底較正孔,即空白孔,設置方法為該孔只加 TMB 顯色液和中止液。每次實驗均需做標準品對照并畫出標準曲線。

    3.分別將標本或不同濃度標準品(100ul/孔)加入相應孔中,用封板膠紙封住反應孔,室溫(25-28℃)孵育120分鐘。對于血清或血漿標本,

    請用1×標準品稀釋液稀釋至合適濃度檢測,建議稀釋100~8000倍。

    4.洗板5次,且最后一次置厚吸水紙上拍干。

    5.加入生物素化抗體工作液(100ul/孔)。用封板膠紙封住反應孔,室溫(25-28℃)孵育60分鐘。

    6.洗板5次,且最后一次置厚吸水紙上拍干。

    7.加入親和素連接的酶工作液(100ul/孔)。用封板膠紙封住反應孔,避光室溫(25-28℃)孵育20分鐘。

    8.洗板5次,且最后一次置厚吸水紙上拍干。

    9.加入顯色劑TMB100ul/孔,避光室溫(25-28℃)孵育20分鐘。

    10.加入中止液50ul/孔,混勻后即刻測量OD450值。

    結果判斷:

    1.復孔的值在20%的差異范圍內結果才有效,復孔的值平均后可作為測量值。

    2.每個標準品或標本的OD值應減去本底校正孔的OD值。

    上海傳秋生物科技有限公司 www.antidotetoaging.com血管生成素參考標準曲線

    0

    0.5

    1

    1.5

    2

    2.5

    0 15.625 31.25 62.5 125 250 500

    濃度(pg/ml)

    O

    D值

    上海傳秋生物科技有限公司 www.antidotetoaging.com

    3.手工繪制標準曲線。以標準品濃度作橫坐標,OD值作縱坐標,以平滑線連接各標準品的坐標點。通過標本的OD值可在標準曲線上查出其

    濃度。

    4.若標本OD值高于標準曲線上限,應適當稀釋后重測,計算濃度時應乘以稀釋倍數。

    典型數值和參考曲線

    濃度pg/ml 典型OD1 典型OD2 OD平均值

    0 0.064 0.082 0.073

    15.625 0.217 0.253 0.235

    31.25 0.427 0.451 0.439

    62.5 0.703 0.803 0.753

    125 1.025 1.123 1.074

    250 1.486 1.61 1.548

    500 2.066 2.282 2.174

    Angiogenin參考標準曲線

    注意:本圖僅供參考,應以同次試驗標準品所繪標準曲線計算標本含量。

    靈敏度,特異性和重復性:

    1.靈敏度:多次重復結果表明,最小檢出量為4.75pg/ml。

    2.特異性:與EGF,GM-CSF,MIP-1α ,MIP-1β ,TGF-α ,TGF-β 1,小鼠 EGF,GM-CSF,MIP-1α 等沒有交叉反應。

    3.重復性:板內,板間變異系數均<10%.

    參考文獻:

    1. Moroianu, J. and J.F. Riordan (1994) Proc. Natl. Acad. Sci. USA 91:1677.

    2. Moenner, M. et al. (1994) Eur. J. Biochem. 226:483.

    3. Bond, M.D. et al. (1993) Biochem. Biophys. Acta 1162:177.

    4. Beintema, J.J. (1989) FEBS Lett. 254:1.

    5. Hu, G-F. et al. (1991) Proc. Natl. Acad. Sci. USA 88:2227.

    6. Russo, N. et al. (1994) Proc. Natl. Acad. Sci. USA 91:2920.上海傳秋生物科技有限公司 www.antidotetoaging.com

    ELISA Kit for the Quantitative Analysis of Human Angiogenin

    The human IL-6 ELISA (enzyme-linked immunosorbent assay) kit is used for detection of human IL-6 in cell culture

    supernatants,human serum and plasma.THE ELISA KIT IS FOR RESEARCH USE ONLY. Please read this instruction manual carefully

    and check out the material provided before use, and you can contact with our company if any questions. You can enter our website or call

    us for other aim.

    Introduction

    Human Angiogenin (ANG) is 123 amino acid (aa) residues in length and contains three intra-chain disulfide bonds, 14

    kDa, non-glycosylated polypeptide that is classified as a member of the ribonuclease superfamily.

    Cells known to express ANG include vascular endothelial cells, smooth muscle cells, fibroblasts, colonic columnar

    epithelium, lymphocytes, and primary adenocarcinoma cells as well as select tumor cell lines. Angiogenin is present in

    normal human plasma at levels as high as 60-120 ng/mL.

    Similar to several members of the ribonuclease superfamily, Angiogenin is a cytotoxic agent that can abolish cellular

    protein synthesis. However, Angiogenin can stimulate capillary and umbilical vein endothelial cells to produce

    diacylglycerol and secrete prostacyclin by phospholipase activation.

    Principles of the Test

    The kits is a solid sandwich enzyme-linked immunosorbent assay for detection of human IL-6. An anti-human IL-6

    monoclonal antibody has been absorbed onto the wells of the microtiter strips provided.

    Samples including specimens or standards were pipetted into wells. The human ANGIOGENIN in specimens or standards would be

    captured by the coated antibody and the free others were removed by washing. The human ANGIOGENIN biotin-conjugated antibody

    were added and binds to human ANGIOGENIN captured by the first antibody, which formed a sandwich. Streptavidin-HRP would be

    added and binds to the biotin conjugated antibody, then free Streptavidin-HRP would be removed during a wash step. After this, subtrate

    solution would be added and catalyzed by the HRP, and a coloured product is formed. The intensity of the colored product is used to

    calculate in proportion to the amount of human ANGIOGENIN in the original specimen.

    Materials provided with the kits:

    Reagent 96/48Test Kit

    Human Angiogenin Antibody-Coated Wells 12 strips/6 strips

    5×Standard Diluent 20 ml/10ml

    Human Angiogenin Standard 8/4vial(s)

    Human Angiogenin Detetion Antibody 10ml/5ml

    Streptavidin-HRP 10ml/5ml

    Wash Buffer Concentrate 20× 30ml/15ml

    TMB 10ml/5ml

    Stop Solution 5ml/3ml

    Plate Covers 3/2

    Complete Instruction Manual 1

    Specimen Collection

    1.Collecting specimen as following:

    A.The particulate of the cell culture supernatants should be removed before use.

    B.Serum was obtained from clot at room temperature.

    C.Please collect plasma with EDTA.

    D.Assay immediately or store samples at -20.Avoidfree-thaw cycles.

    2. Antiseptic and anticoagulant should not appear in Serum samples.3. Any particulate should be removed from samples before use.

    4. Do not use grossly hemolyzed or lipemic samples.

    Note: Strongly recommend that the serum and plasma samples should be diluent as doubling dilution before use.

    Precautions for use:

    1. Please storage the Kit at 28℃。

    2. Washing buffer concentrate may have crystal in low temperature, and you can melt its in water-bath before use.

    3. Please discard the remains after use of the dissolved standard.

    4. Avoid contact of substrate solution with oxidizing agents and metal.

    5. Usage of disposable pipette tips avoid microbial contamination or cross-contamination of reagents or specimens.

    6. Do not mix or substitute reagents with those from other lots or other sources.

    7. To ensure the adequate mixure of added reagents, please tap gently the plate after the wells were filled with liquid.

    8. Incubation temperature should be 2528.

    9. Wash step was crucial for whole assay process.

    10. Duplicate wells of the same sample were recommended in assay process.

    11. Avoid the foam while pour the liquid into wells.

    12. For serum or plasma samples,the biotin-conjugated antibody should be incubate for at least 90 minutes.

    Reagent Preparation

    1.The reagents should be warmed up to room temperature before use. The remanent reagents must reseal and put into refrigeratory

    again as soon as possible.

    2.Dilute 1ml of wash buffer Concentrate into 19ml deionized or distilled water to work.

    3. Dilute 1ml of 5×sample diluent into 4ml deionized or distilled water to 1×sample diluent.

    4. Add deionized or distilled water to the bottle according to the volume of the label and wait15 minutes for complete dissolution.

    Incubation temperature should be 25- 28℃。.And in turn add the half concentration diluent by standard diluent .

    Wash step:

    Automated microplate washer or operating by pipette: Each well should be pour into 300ul wash buffer and soak 15 or 30 seconds,then

    be aspirated, five times process were repeated. After the last wash, remove remaining wash buffer by aspirating. Invert the plate and blot

    it against clean paper towels.

    Materials Required But Not Provided

    1. pipettes and pipette tips

    2. Microwell strip reader capable of reading at 450 nm (540 nm as optional reference wave length)

    3. automated microplate washer

    4.Glass-distilled or deionized water

    Assay procedure

    1.The needed strips were putted into the frame, the remains were returned into foil pouch and resealed.

    2.Blank well were recommended, which only color reagent and stop solution be added. It is suggested that each testing with gradient

    density of standard for standard curve.

    3.Add 100ul of standard or sample. Cover with the Plate Covers provided. Incubate for 2 hours at room temperatureIf assay the serum

    sample, you should diluent the sample to proper times by experiment ,we sagest 100~8000 folds diluent before detection

    4.Five times wash process were repeated.

    5.Add 100ul of detetion antibody. Cover with the Plate Covers provided. Incubate for 1 hour at room temperature.

    6.Five times wash process were repeated.

    7.Add 100ul of Streptavidin-HRP. Cover with the Plate Covers provided. Lucifugal incubation for 20 minutes at room temperature.

    8.Five times wash process were repeated.

    9.Add 100ul of TMB,Lucifugal incubation for 20 minutes at room temperature.

    10.Add 50ul of stop solution to each well, determine the optical density of each well within 10 minutes.

    Calculation of Results

    1.Duplicates should be within 20 percent of the mean. Average absorbance values for each set of duplicate samples were used as

    detection results.

    上海傳秋生物科技有限公司 www.antidotetoaging.comAngiogenin Standard Curve

    0

    0.5

    1

    1.5

    2

    2.5

    0 15.625 31.25 62.5 125 250 500

    human Angiogenin Concentration(pg/ml)

    O

    p

    t

    i

    c

    a

    l

    D

    e

    n

    s

    i

    t

    y

    上海傳秋生物科技有限公司 www.antidotetoaging.com

    2.The blank absorbance values of subtract should be deducted.

    3.Drawing a best fit curve through the points of graph. Draw the standard curve by plotting assayed OD valure (on the Y axis) vs.

    concentration (on the X axis). The sample concentration was obtained based on its OD value founding in the standard concentration

    curve.

    4.If the values obtained are not within the expected range of the standard, Samples should be dilute and assay again

    Typical Data and Standard Curve

    concentratio

    n (pg/ml)

    Typical data 1 Typical data 2 Average

    0 0.064 0.082 0.073

    15.625 0.217 0.253 0.235

    31.25 0.427 0.451 0.439

    62.5 0.703 0.803 0.753

    125 1.025 1.123 1.074

    250 1.486 1.61 1.548

    500 2.066 2.282 2.174

    Human Angiogenin Standard Curve

    Sensitivity, Specificity, Repeatability

    Sensitivity: repeated assays were evaluated and the minimum detectable dose was 4.75pg/ml.

    Specificity: No significant cross-reactivity or interference with humanEGF,GM-CSF,MIP-1α ,MIP-1β ,TGF-α ,TGF-β 1,mouse EGF,

    GM-CSF,MIP-1α

    Repeatability: The coefficient of variation between wells or plates is less than 10 percent.

    REFERENCES:

    1. Moroianu, J. and J.F. Riordan (1994) Proc. Natl. Acad. Sci. USA 91:1677.

    2. Moenner, M. et al. (1994) Eur. J. Biochem. 226:483.

    3. Bond, M.D. et al. (1993) Biochem. Biophys. Acta 1162:177.

    4. Beintema, J.J. (1989) FEBS Lett. 254:1.

    5. Hu, G-F. et al. (1991) Proc. Natl. Acad. Sci. USA 88:2227.

    6. Russo, N. et al. (1994) Proc. Natl. Acad. Sci. USA 91:2920.

     


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