Monoclonal antibody IgM type RhD blood type shaped reagent

A monoclonal antibody, monoclonal technology, applied in the field of biochemistry, can solve the problems of human infection, high misjudgment rate, poor specificity of polyclonal antibody reaction, avoid infectious agents, high titer and specificity, and improve accuracy. Effect

Inactive Publication Date: 2008-05-14
上海血液生物医药有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a RhD blood typing reagent of monoclonal antibody IgM type, and described monoclonal antibody IgM type RhD blood typing reagent will solve the problem in the prior art that the antibodies for identifying human red blood cell blood types are mostly taken from human serum, It needs to consume a large amount of human serum, and some unrecognized infectious sources that may exist in human serum may cause technical problems in human infection, and at the same time solve the technical problems of poor specificity of polyclonal antibody reaction and high misjudgment rate

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] A monoclonal antibody IgM type RhD blood typing reagent of the present invention, the monoclonal antibody IgM type RhD blood typing reagent solves the problem of misjudgment due to the poor antibody reaction specificity of polyclonal antibody liquid injections in the prior art high rate of technical issues. A RhD blood typing reagent of monoclonal antibody IgM type, which is composed of an anti-D monoclonal cell culture concentrate and a diluent, wherein the anti-D monoclonal cell culture concentrate is prepared by the following method, first including a hybridization establishment The process of the cell line, the process of establishing a hybrid cell line includes a process of using Epstein-Barr virus-transformed lymphocytes to hybridize with mouse bone marrow cells, through which a hybrid monoclonal cell line is established, followed by a process of cultivating a hybrid monoclonal cell line In the process of cloning cell lines, through the cultivation of hybridized m...

Embodiment 2

[0016] Detection of RhD blood type by plate method

[0017] 1. Add a drop of anti-D reagent on the slide;

[0018] 2. Add another drop of 35-45% tested red blood cell suspension, which can be saline suspension, or red blood cells suspended in self-plasma or serum;

[0019] 3. Mix well in the circular slide area, shake the slide slowly back and forth, and read the results with naked eyes in about 2 minutes;

[0020] 4. If red blood cell agglutination occurs, it is Rh positive. If agglutination does not occur, it shows that there is no D antigen on the surface of red blood cells and they are Rh negative.

[0021] 5. If it is negative, it can be tested again to increase reliability.

Embodiment 3

[0023] RhD blood type detection by test tube method

[0024] 1. Add one drop of anti-D reagent to a pre-labeled test tube;

[0025] 2. Add another drop of about 3-5% red blood cell suspension in the test tube and mix well;

[0026] 1. Centrifugation, speed and time can choose any of the following:

[0027] Speed ​​1000RPM, time 1 minute;

[0028] Speed ​​3400RPM, time 15 seconds;

[0029] 4. Check for hemolysis (hemolysis may be a positive result, or bacterial contamination), then shake gently to resuspend the cells;

[0030] 5. Observe the agglutination status and record the result immediately.

[0031] 6. If red blood cell agglutination occurs, it is Rh positive. If agglutination does not occur, it shows that there is no D antigen on the surface of red blood cells and they are Rh negative.

[0032] 7. If it is negative, it can be tested again to increase reliability.

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Abstract

The invention provides an RhD blood grouping reagent with a monoclonal antibody IgM type, which consists of anti-D monoclonal cell culture concentrated solution and dilution solution, the anti-D monoclonal cell culture concentrated solution is prepared by using the following method, firstly, the invention includes an establishing process of a hybrid cell system, the establishing process of the hybrid cell system includes a process of making use of lymph cells transformed by EB virus to hybridize with the mouse bone marrow cells, the hybrid monoclonal cell system is established by the process, secondly, the invention includes a culture process of the hybrid monoclonal cell system, the culture solution of the monoclonal cells is collected to carry out the concentration by the culture of the hybrid monoclonal cell system, so as to obtain the anti-D monoclonal cell culture concentrated solution; the dilution solution consists of sodium chloride, sodium phosphate with 12 water molecules, potassium dihydrogen phosphate, stabilizer, sodium azide, Tween 20 and distilled water; as the monoclonal antibody is adopted, the invention has strong specific antibody response and high accuracy rate of the detection.

Description

Technical field: [0001] The invention relates to the field of biochemistry, in particular to a reagent for identifying blood types, specifically a monoclonal antibody IgM type RhD blood type typing reagent. Background technique: [0002] Generally, Rh blood types are divided into Rh positive and Rh negative according to the presence or absence of D antigen on the surface of red blood cells clinically. If an Rh-negative mother conceives an Rh-positive fetus, the mother will produce Rh antibodies, which can cause hemolytic disease of the newborn. Therefore, the detection of Rh positive is especially important for this disease. [0003] Most of the antibodies used clinically to identify human erythrocyte blood types are taken from human serum. In this way, not only a large amount of human serum is consumed, but also unimaginable consequences may be caused by some unknown sources of infection that may exist in human serum. Moreover, at present, polyclonal antibodies are often ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/80G01N33/577
Inventor 包于勤顾桂玲丁苏鄂刘剑荣王晔沈轶明詹申宏
Owner 上海血液生物医药有限责任公司
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