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Updated: Jun 19, 2025
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Isolation of Leukocytes from the Murine Tissues at the Maternal-Fetal Interface
Published on: May 21, 2015
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Splenocytes and thymocytes migration patterns between lymphoid organs in pregnancy.
Gabriela T Cruz-Cureño1, Marina Ch Rosales-Tarteaut1, Lourdes A Arriaga-Pizano2
1Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Prolongación Carpio s/n esq, Plan de Ayala, Plutarco Elías Calles, CP 11340, Ciudad de México, Mexico.
Biochemistry and Biophysics Reports
|July 25, 2024
Summary
Cell migration in pregnant mice shows similar thymocyte and splenocyte mobility compared to non-pregnant mice. This suggests leukocyte retention may explain enlarged spleens and lymph nodes during pregnancy.
Area of Science:
- Immunology
- Cell Biology
- Reproductive Biology
Background:
- Cell migration is crucial for immune function but understudied in pregnant animals.
- Physiological enlargement of spleen and periaortic lymph nodes is observed in pregnant mice.
Purpose of the Study:
- To investigate and compare cell migration patterns of thymocytes and splenocytes in pregnant versus non-pregnant mice.
- To explore the implications of cell mobility for lymphoid organ size during pregnancy.
Main Methods:
- A mouse model was used, transferring PKH26-stained thymocytes and splenocytes from pregnant or non-pregnant donors to recipient mice.
- Flow cytometry quantified the percentage and Mean Fluorescence Intensity of PKH-26+ cells.
- Non-parametric ANOVA was employed for statistical analysis.
Main Results:
- A higher percentage of PKH26+ thymocytes was found in the spleen, lymph nodes, and peripheral blood of females compared to males.
- No significant difference was observed in the frequency of thymocytes and splenocytes from pregnant and non-pregnant mice within recipient lymphoid organs.
- Cell localization patterns were similar between pregnant and non-pregnant groups during the perinatal period.
Conclusions:
- Cell mobility of thymocytes and splenocytes is comparable between pregnant and non-pregnant mice.
- The observed increase in spleen and periaortic lymph node size during pregnancy may be attributed to the retention of leukocytes in these secondary lymphoid organs.
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