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The mixed lymphocyte response in whole blood: technical aspects
Journal of Immunological Methods
|January 1, 1978
Summary
Standardizing lymphocyte response in mixed cultures requires a 6-8 day culture period and a 4:8 stimulator-to-responder lymphocyte ratio. Expressing results as counts/min (cpm) per responder lymphocyte is more reliable than stimulation indices.
Area of Science:
- Immunology
- Cellular immunology
- Lymphocyte activation assays
Background:
- Mixed lymphocyte cultures (MLC) are crucial for assessing immune responses.
- Standardization of MLC protocols is essential for reproducible results.
- Optimizing whole blood lymphocyte assays enhances clinical applicability.
Purpose of the Study:
- To establish standardized conditions for whole blood mixed lymphocyte cultures.
- To determine optimal parameters for lymphocyte response assays.
- To improve the reliability of allogeneic lymphocyte interaction studies.
Main Methods:
- Experiments involved culturing whole blood with allogeneic lymphocytes.
- Varied culture periods, stimulator-to-responder ratios, and assay volumes (macro- and microtechnique) were tested.
- Serum supplementation was evaluated.
Main Results:
- Optimal culture period identified as 6-8 days.
- A stimulator-to-responder lymphocyte ratio of 4-8 was found suitable.
- Both macro- and microtechnique volumes yielded reliable results without serum.
- Counts/min (cpm) per responder lymphocyte is the preferred method for data expression.
Conclusions:
- A standardized whole blood mixed lymphocyte culture protocol was developed.
- The optimized assay provides a reliable method for assessing lymphocyte responses.
- This standardization facilitates consistent and reproducible immunological assessments.