|
|
The Microgel/Interlab G26 Immunofixation Electrophoresis (IFE) kit, with the Acid Violet stain, thanks to the easy mask, provides a semi automated method for detection and identification of suspected monoclonal components. The first 8 Immunofixation samples are completed within 40 minutes and subsequent groups every 15 minutes.
Microgel and Interlab G26 work by a continuous loading mode.
1. Pipette the specimens into the sample wells
2. Place gels into the holder
3. Start the instrument
4. WALK AWAY!
 |
The neoplastic proliferation of single clones of plasma cells, a condition also termed monoclonal gammopathy, causes the abnormal synthesis of monoclonal immunoglobulins, namely a biochemically homogeneous group of immunoglobulins consisting of one single type of heavy chain and light chain. These monoclonal immunoglobulins are also called paraproteins and are frequently associated with a broad heterogeneous group of plasma cell dyscrasias.
|
 |
In most cases these paraproteins produce one or more sharp bands in the electrophoretic patterns obtained from serum and/or urine samples. Although monoclonal components are typical of myeloma, they also appear on the electrophoretic pattern of patients suffering from other conditions like infections and auto-immune diseases. Occasionally their presence is observed in a few benign conditions in elderly individuals.
|
 |
These bands are generally described as ‘suspected monoclonal components’, and their biochemical identity needs to be further investigated with sensitive and specific electrophoretic methods.
Confirmation of the presence of a monoclonal immunoglobulin, together with the characterization of the immunoglobulin type (for example IgG, k or IgM, l) are of fundamental importance for the definitive diagnosis.
Immunofixation electrophoresis (IFE) is a laboratory method used to define the biochemical identity and homogeneity of immunoglobulins, when suspected monoclonal components are detected in protein electrophoretic patterns of biological fluids. IFE Acid Violet stain combines the resolution of protein fractions by electrophoresis with the specific recognition of molecules using antibodies raised against heavy chains of human immunoglobulins (IgG, IgM, and IgA), and their light chains, kappa and lambda. The binding between the specific antibody and the monoclonal immunoglobulin results in the formation of a band of precipitate in the corresponding lane that identifies the type of immunoglobulin, either heavy chain and/or light chain.
The use of acid violet, a very sensitive stain for proteins, provides improved quality of the electrophoretic results, for a better visual inspection of the patterns. |
Kit Content |
Gel Plates |
|
Blotting Paper A |
30 |
Blotting Paper L |
10 |
Blotting Paper G |
10 |
Buffered Sponges |
20 |
| Acid Violet Stain |
1 |
| Applicator Washing Solution |
1 |
| Washing Solution 1 for Immunofixation |
1 |
| Washing Solution 2 for Immunofixation |
1 |
| Immunofixation Diluent |
1 |
| Disposable Sample Plates |
10 |
|
|
Regents preparation |
Reagents are ready to use, only the Stain and the Washing Solution for Immunofixation have to be reconstituted:
- Reconstitute Stain with 900 ml of distilled water.
- Dilute 20 ml of Washing Solution for Immunofixation to a final volume of 1L with distilled water
|
Samples preparation |
Diluted serum sample, IgG lane dilute 1/6 - Other lanes dilute 1/3. Concentrated urines to a final total protein concentration of approx. 5 g/L
|
Sample storage and stability |
| Serum: |
1 week at 2 to 8°C, 1 month at 20°C |
| Urine: |
1 week at 2 to 8°C, and 1 month at 20°C |
|
|
|