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Updated: Aug 12, 2026
Collection, Isolation, and Flow Cytometric Analysis of Human Endocervical Samples
Published on: July 6, 2014
Positive immunoselection--a method of isolating leukocytes from leukocytic reacted human cervical mucus samples
L A Thompson1, M J Tomlinson, C L Barratt
1University Department of Obstetrics and Gynaecology, Jessop Hospital for Women, Sheffield, United Kingdom.
Insights
Researchers developed a new method to isolate leukocytes from cervical mucus using antibody-coated magnetic beads. This technique confirms a significant increase in leukocytes, primarily neutrophils, after insemination, suggesting a role in sperm clearance.
Area of Science:
- Immunology
- Reproductive Biology
- Cell Biology
Background:
- Understanding the immune response in the female reproductive tract is crucial for reproductive health.
- Cervical mucus contains immune cells that play a role in local defense and reproductive processes.
Purpose of the Study:
- To develop and validate a simple, accurate method for isolating and quantifying specific leukocytes in human cervical mucus.
- To investigate changes in leukocyte populations in cervical mucus before and after insemination.
Main Methods:
- Enzymatic breakdown of midcycle human cervical mucus samples.
- Incubation with monoclonal antibody-coated magnetic beads for positive immunoselection of leukocytes.
- Quantification of retrieved leukocytes and identification of predominant cell types.
Main Results:
- The developed method consistently retrieved representative levels of leukocytes (73.8% +/- 1.59% retrieval rate).
- Significantly higher numbers of leukocytes were isolated from post-insemination samples (P < 0.0001).
- Neutrophils constituted the predominant leukocyte population (83%) in post-insemination samples.
Conclusions:
- A novel and effective method for leukocyte isolation from cervical mucus has been established.
- Semen introduction triggers a significant influx of leukocytes, predominantly neutrophils, into the human uterine cervix.
- This leukocyte influx may serve a phagocytic function in clearing non-fertilizing sperm populations.
Abstract:
In this brief communication we report a simple and accurate method of isolating and quantifying specific leukocytes from midcycle human cervical mucus, using monoclonal antibody-coated magnetic beads. Cervical mucus samples (pre- and postinsemination) were broken down enzymatically and incubated with a series of these beads. This method of positive immunoselection consistently retrieved representative levels of leukocytes (means = 73.8% +/- 1.59%; mean leukocyte retrieval rate +/- S.E.) from the cervical mucus samples. Significantly more leukocytes (P less than 0.0001) were isolated from the postinsemination samples, the predominant leukocyte of which was the neutrophil, which comprised 83% of the leukocyte population. These results reaffirm that a leukocytic influx is initiated across the human uterine cervix following the introduction of semen samples, the function of which is possibly phagocytic clearance of the nonfertilizing population of sperm.
