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人的金属蛋白酶 2 定量分析酶联免疫检测试剂盒

本试剂盒仅供科研使用。用于体外定量检测人血清、血浆或细胞培养上清液中的 MMP-2 浓度。使用前请仔细阅读说明书并检查试剂组

分是否完整。如有产品包装破损或质量投拆，请在收到货一个月之内联系我们。

MMP-2简介：

MMPs 蛋白是一组具有锌指结构的钙依赖的能够降解胞间基质成分的一组蛋白的统称。MMP-2 是该家族中重要的一员。

人的 MMP-2 是以非糖基化的前体形式分泌的。cDNA 编码 631 个氨基酸残基的前体蛋白，成熟的 MMP-2 蛋白有 551 个氨基酸

残基，前体蛋白中还包含一个 80 个氨基酸残的前体结构域。成熟的 MMP-2 是通过膜型的 MMP 家族蛋白或丝氨酸激酶和活化蛋白 C

的催化切除前体蛋白的前体结构域而形成的。

MMP-2 是一种明胶酶 B，能够降解凝胶（破坏的胶原蛋白）、IV 型胶原、V 型胶原、X 型胶原、弹性蛋白和纤连蛋白等。MMP-2

能够调节许多与血管化和炎症相关的许多分子，包括肾上腺髓质激素、内皮缩血管肽、降钙素相关的肽、CCL7/MCP-3、CXCL12/SDF-1、

半乳凝集素-3，IGFBP-3、IL-1β 、 S100A8 和 S100A9 等。

检测原理:

本试剂盒采用双抗体夹心ELISA法检测样本中MMP-2的浓度。MMP-2捕获抗体已预包被于酶标板上，当加入标本或参考品时，其中的MMP-2

会与捕获抗体结合，其它游离的成分通过洗涤的过程被除去。当加入生物素化的抗人MMP-2 抗体后，抗人MMP-2抗体与MMP-2接合，形成夹

心的免疫复合物，其它游离的成分通过洗涤的过程被除去。随后加入辣根过氧化物酶标记的亲合素。生物素与亲合素特异性结合，亲合素

连接的酶就会与夹心的免疫复合物连接起来；其它游离的成分通过洗涤的过程被除去。最后加入显色剂，若样本中存在MMP-2,将会形成免

疫复合物，辣根过氧化物酶会催化无色的显色剂氧化成蓝色物质，在加入终止液后呈黄色。通过酶标仪检测，读其450nm处的OD值，MMP-2

浓度与OD450值之间呈正比，通过参考品绘制标准曲线，对照未知样本中OD值，即可算出标本中MMP-2浓度。

人MMP-2定量分析酶联免疫检测试剂盒组成:

组分 规格（96T/48T）

人MMP-2预包被板 12条/6条

5X标准品稀释液 10ml/5ml

人MMP-2标准品 2/1支(冻干)

人MMP-2生物素化抗体 10ml/5ml

亲和素连接的HRP酶 10ml/5ml

浓缩洗涤液 20× 30ml/15ml

TMB底物 10ml/5 ml

中止液 5ml/3 ml

封板胶纸 3/2张

说明书 1份

标本收集:

1.标本的收集请按下列流程进行操作；

A.细胞上清标本离心去除悬浮物后即可；

B.血清标本应是自然凝固后，取上清，避免在冰箱中凝固血液；

C.血浆标本，推荐用 EDTA 的方法收集；

D.标本收集后请分装，若待测样本不能及时检测，冻存于－20℃，避免反复冻融。

2.血清标本不应添加任何防腐剂或抗凝剂；

3.标本应清澈透明，检测前样本中如有悬浮物应通过离心去除。

4.请勿使用溶血高血脂或污染的标本检测，否则结果将不准确。

注：人血清或血浆样本请用标准品稀释液稀释后再检测。注意事项:

1.试剂盒请保存在2～8℃。

2.浓缩洗涤液因在低温下可能有结晶，请水浴加热使结晶完全溶解后再配制工作液。

3.标准品复溶加样后，剩余部份请丢弃。

4.底物请勿接触氧化剂和金属。

5.加样时，请及时更换枪头，避免交叉污染。

6.严禁混用不同批号的试剂盒组份。

7.充分混匀对保证反应结果的准性很重要，在加液后请轻轻叩击边缘以保证混匀。

8.室温反应，请严格控制在25～28℃。

9.洗涤过程是至关重要的，洗涤不充分会使精确度下降并导致结果误差较大。

10.试验中标准品和样本检测时建议作双复孔。

11.加样过程中避免气泡的产生。

12.血清和血浆标本的检测时，检测抗体的孵育时间应适当延长。

检测前准备工作:

1.试剂盒自冰箱中取出后应置室温（25～28℃）平衡 20 分钟；每次检测后剩余试剂请及时于 2～8℃保存。

2.将浓缩洗涤液用双蒸水或去离子水稀释(1份加19份水)。

3. 将5×标准品稀释液用双蒸水或去离子水稀释(1份加4份水)。

4.标准品:按标签复溶体积用1X标准品稀释液复溶使MMP-2终浓度达到20ng/ml，室温反应，请严格控制在25～28℃，静置15~20分钟后轻轻

混悬（建议抽吸几次）待彻底溶解，用标准品稀释液倍比梯度稀释后依次加入检测孔中。（标准曲线取七个点，最高浓度为20ng/ml,标准

品稀释液直接加入作为0浓度.）

洗涤方法:

自动洗板机或人工洗板：每孔洗涤液为300ul，注入与吸出间隔15-30秒。洗板5次。最后一次洗板完成后将板倒扣着在厚吸水纸上用力拍干。

实验过程需自备的材料：

1.不同规格的加样枪及相应的枪头；

2.酶标仪；

3.自动洗板机；

4.去离子水或双蒸水；

操作步骤:

1.通过计算并确定一次性实验所需的板条数，取出所需板条放置在框架内，暂时用不到板条请放回铝箔袋密封，保存于4℃。

2.建议设置本底较正孔，即空白孔,设置方法为该孔只加TMB显色液和中止液。每次实验均需做标准品对照并画出标准曲线。

3.分别将标本或不同浓度标准品(100ul/孔)加入相应孔中，用封板胶纸封住反应孔，室温（25～28℃）孵育120分钟。如果是血清血浆样本，

不同样本稀释比例不一样，一般范围在25~800倍，如无明确范围，建议从50倍稀释，如果样本浓度过高，超过检测范围，请加大稀释倍数

后重新稀释检测。

4.洗板5次，且最后一次置厚吸水纸上拍干。

5.加入生物素化抗体工作液(100ul/孔)。用封板胶纸封住反应孔，室温（25～28℃）孵育60分钟。

6.洗板5次，且最后一次置厚吸水纸上拍干。

7.加入亲和素连接的HRP酶工作液(100ul/孔)。用封板胶纸封住反应孔，避光室温（25～28℃）孵育20分钟。

8.洗板5次，且最后一次置厚吸水纸上拍干。

9.加入显色剂TMB100ul/孔，避光室温（25～28℃）孵育20分钟。

上海传秋生物科技有限公司 www.chuanqiubio.com人MMP-2标准曲线

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0 0.625 1.25 2.5 5 10 20

样本中MMP-2浓度（ng/ml)

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D值

上海传秋生物科技有限公司 www.chuanqiubio.com

10.加入终止液50ul/孔,混匀后即刻测量OD450值。

结果判断:

1.复孔的值在20%的差异范围内结果才有效，复孔的值平均后可作为测量值。

2.每个标准品或标本的OD值应减去本底校正孔的OD值。

3.手工绘制标准曲线。以标准品浓度作横坐标，OD值作纵坐标，以平滑线连接各标准品的坐标点。通过标本的OD值可在标准曲线上查出其

浓度。

4.若标本OD值高于标准曲线上限，应适当稀释后重测，计算浓度时应乘以稀释倍数。

典型数值和参考曲线

浓度ng/ml 典型OD值1 典型OD值2 OD平均值

0 0.1475 0.1529 0.1502

0.625 0.1979 0.2207 0.2093

1.25 0.2647 0.2903 0.2775

2.5 0.3701 0.3749 0.3725

5 0.7187 0.7477 0.7332

10 1.5471 1.5865 1.5668

20 2.6475 2.8107 2.7291

人MMP-2参考标准曲线

注意：本图仅供参考，应以同次试验标准品所绘标准曲线计算标本含量。

灵敏度，特异性和重复性:

1．灵敏度：多次重复结果表明，最小检出量为0.375ng/ml。

2．特异性：不与MMP-1、MMP-7、MMP-8、MMP-10、MMP-12、MMP-13、TIMP-1、TIMP-4 等反应。

3.重复性：板内，板间变异系数均<10%.

参考文献:

1. Page-McCaw, A. et al. (2007) Nat. Rev. Mol. Cell Biol. 8:221.

2. Manicone, A.M. and J.K. McGuire (2008) Semin. Cell Dev. Biol. 19:34.

3. Rydlova, M. et al. (2008) Anticancer Res. 28:1389.

4. Kanoh, Y. et al. (2008) Inflammation 31:99.

5. Morgunova, E. et al. (1999) Science 284:1667.

6. Lafleur, M.A. et al. (2001) Biochem. J. 357:107. 上海传秋生物科技有限公司 www.chuanqiubio.com

ELISA Kit for the Quantitative Analysis of Human MMP-2

The human MMP-2 ELISA (enzyme-linked immunosorbent assay) kit is used for detection of human MMP-2 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

Matrix metalloproteinases are a family of zinc and calcium dependent endopeptidases with the combined ability to degrade all the

components of the extracellular matrix. MMP-2 is one of important members of the family.

Human MMP-2 is secreted as a non-glycosylated 72 kDa pro-enzyme. The mature protein have 551 amino acid (aa) residue and the

cDNA encodes a 631 amino acid (aa) residue pro-enzyme protein include 80 aa residue pro domain. The mature protein is formed with

removal of pro domain by membrane-type MMPs (MT-MMPs) or by the serine proteases thrombin and activated protein C .MMP-2 is

one of gelatinase B. MMP-2 can degrade gelatin (denatured collagen) , type IV collagen , collagens V, VII, and X, decorin, elastin, and

fibronectin.MMP-2 processes and modulates the functions of many other vasoactive and pro-inflammatory molecules including

adrenomedullin, big endothelin-1, calcitonin gene-related peptide, CCL7/MCP-3, CXCL12/SDF-1, galectin-3, IGFBP-3, IL-1β, S100A8,

and S100A9.

Principles of the Test

The kits is a solid sandwich enzyme-linked immunosorbent assay for detection of human MMP-2. Ananti-human MMP-2 monoclonal

antibody has been absorbed onto the wells of the microtiter strips provided. Samples including specimens or standards were pipetted into

wells. The human MMP-2 in specimens or standards would be captured by the coated antibody and the free others were removed by

washing. The human MMP-2 biotin-conjugated antibody were added and binds to human MMP-2 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 MMP-2 in the original specimen.

Materials provided with the kits:

reagent 96/48Test Kit

Human MMP-2 Antibody-Coated Wells 12 strips/6 strips

Standard Diluent 10ml/5ml

Human MMP-2 Standard 2/1vial(s)

Human Detetion Antibody 10ml/5ml

Streptavidin-HRP 10ml/5ml

Wash Buffer Concentrate 20× 30ml/15ml

TMB 10ml/5 ml

Stop Solution 5ml/3 ml

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℃. Avoid free-thaw cycles.

2.Antiseptic and anticoagulant should not appear in Serumsamples.

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 2～8℃。

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 25～28℃.

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 the standard dilution solution 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 temperature If is plasma serum

samples, different sample dilution ratio is different, generally range in age from 25 to 800 times, if there is no definite scope, advice from

50 times dilution, if the sample concentration is too high, more than test scope, please increase after diluted times dilution test again.

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 per cent of the mean. Average absorbance values for each set of duplicate samples were used as

detection results.

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

上海传秋生物科技有限公司 www.chuanqiubio.comHuman MMP-2 Standard Curve

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human MMP-2 concentration(ng/ml)

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上海传秋生物科技有限公司 www.chuanqiubio.com

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

concentration

(ng/ml)

Typical data 1 Typical data 2 Average

0 0.1475 0.1529 0.1502

0.625 0.1979 0.2207 0.2093

1.25 0.2647 0.2903 0.2775

2.5 0.3701 0.3749 0.3725

5 0.7187 0.7477 0.7332

10 1.5471 1.5865 1.5668

20 2.6475 2.8107 2.7291

Human MMP-2 Standard Curve

Sensitivity, Specificity, Repeatability

Sensitivity: repeated assays were evaluated and the minimum detectable dose was 0.375ng/ml.

Specificity : No significant cross-reactivity or interference with human MMP-1、MMP-7、MMP-8、MMP-10、MMP-13、TIMP-1、TIMP-4

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

REFERENCES:

1. Page-McCaw, A. et al. (2007) Nat. Rev. Mol. Cell Biol. 8:221.

2. Manicone, A.M. and J.K. McGuire (2008) Semin. Cell Dev. Biol. 19:34.

3. Rydlova, M. et al. (2008) Anticancer Res. 28:1389.

4. Kanoh, Y. et al. (2008) Inflammation 31:99.

5. Morgunova, E. et al. (1999) Science 284:1667.

6. Lafleur, M.A. et al. (2001) Biochem. J. 357:107.