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BMP-2 antibody and application to detection of content of BMP-2 protein in bone repairing material thereof

A protein content, BMP-2 technology, applied in anti-growth factor immunoglobulin, anti-animal/human immunoglobulin, application, etc., can solve the problem of inability to accurately measure BMP-2 content and incomplete elution of BMP-2 , interfering with the detection results and other problems, to achieve the effect of high accuracy, reducing incomplete elution and high application value

Active Publication Date: 2016-11-16
YANTAI ZHENGHAI BIO TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, the method of first eluting BMP-2 in the bone material and then measuring the eluent is generally adopted. On the one hand, the elution of BMP-2 is incomplete or difficult to elute, resulting in inaccurate detection; Determination of BMP-2 content in the eluent, the eluent will interfere with the detection results
Or calculate by measuring the BMP-2 protein concentration of the solution before and after the combination, but the BMP-2 content cannot be accurately measured after the finished product is made
After this method is combined, the protein concentration is too low, which is lower than the detection limit of the relevant detection method. Not only is the operation cumbersome, but the error is relatively large.

Method used

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  • BMP-2 antibody and application to detection of content of BMP-2 protein in bone repairing material thereof
  • BMP-2 antibody and application to detection of content of BMP-2 protein in bone repairing material thereof
  • BMP-2 antibody and application to detection of content of BMP-2 protein in bone repairing material thereof

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Embodiment 1

[0059] Example 1. Detection of BMP-2 protein content in bone repair materials

[0060] 1. Research object: bone repair material (containing active BMP-2 protein, the content of BMP-2 is 85.0 μg / g bone repair material), the bone repair material is a blank bone repair material (produced by Yantai Zhenghai Biotechnology Co., Ltd. Bone repair material, referred to herein as blank bone repair material) is compounded with an aqueous solution of BMP-2 reference substance (BMP-2 reference substance is a protein composed of protein monomers shown in sequence 1 in the two sequence listings), and frozen Dry the resulting product.

[0061] 2. BMP-2 reference substance: a protein composed of protein monomers shown in sequence 1 in the two sequence listings

[0062] 3. Reagents:

[0063] Growth medium: DMEM (GIBCO, #11995) + 10% (mass percentage concentration) fetal bovine serum (GIBCO, #10099)

[0064] Sample diluent: PBS+1% (mass percentage concentration) BSA (Sangon Bioengineering (Sh...

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Abstract

The invention discloses a BMP-2 antibody and application to detection of content of BMP-2 protein in a bone repairing material thereof. In the application, the BMP-2 antibody is an antibody secreted by an rhBMP-2 monoclonal antibody cell strain 44F5 which is preserved in China General Microbiological Culture Collection Center; the preservation number of the rhBMP-2 monoclonal antibody cell strain is CGMCC No.12257. Experiments show that the BMP-2 antibody is high in specificity, high in sensitivity, high in accuracy and high in stability when the BMP-2 antibody is used for detecting the content of the BMP-2 protein in the bone repairing material; the recovery ratio (which is a ratio of a BMP-2 content detection value to a BMP-2 content actual value) is 106.4%; the degree of precision is 5.2%; a method established for detecting the content of the BMP-2 protein in the bone repairing material or the bone tissue is relatively stable, is high in accuracy and is suitable for detecting the content of the BMP-2 protein in the bone repairing material as a conventional method.

Description

technical field [0001] The invention relates to a BMP-2 antibody in the field of biotechnology and its application in detecting the BMP-2 protein content in bone repair materials. Background technique [0002] Bone morphogenetic protein (BMP) is a hydrophobic protein secreted by bone matrix and belongs to the transforming growth factor (TGF-β) superfamily member. It was first proposed by Urist et al. in 1965, defined in 1972, and defined in 1982. An active protein isolated for the first time from decalcified bone matrix extract. The BMP family includes BMP-1, 2, 4, 6, 7, 9, 12, 14, etc., among which BMP-2 can obviously induce undifferentiated mesenchymal stem cells and fibroblasts to differentiate into osteoblasts and can Regulates the differentiation of osteoblasts and chondrocytes, induces ectopic bone formation and promotes fracture healing. BMP-2 is the initiation factor of osteogenesis, which can accelerate bone reconstruction. It is the ideal target gene for bone rep...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07K16/22C12N15/13C12N5/20G01N33/68G01N33/577
Inventor 刘启省张东刚苑晓佩屈长宏陈红蕾南南杨建军彭继学
Owner YANTAI ZHENGHAI BIO TECH
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