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Updated: Jul 21, 2025

Isolation of Macrophage Subsets and Stromal Cells from Human and Mouse Myocardial Specimens
Published on: December 17, 2019
Macrophages of the Cardiorenal Axis and Myocardial Infarction
Maria Kercheva1,2, Vyacheslav Ryabov1,2,3, Aleksandra Gombozhapova1,2
1Cardiology Division, Siberian State Medical University, 2 Moscovsky Trakt, 634055 Tomsk, Russia.
Abstract:
The aim of our study was to compare the features of macrophage (mf) composition of the kidneys in patients with fatal myocardial infarction (MI) and in patients without cardiovascular diseases (CVD). We used kidney fragments taken during autopsy. Macrophage infiltration was assessed by immunohistochemistry: antibodies CD68 were used as a common mf marker, CD80-M1 type mf marker, CD163, CD206, and stabilin-1-M2 type. Macrophage composition of the kidneys in patients with fatal MI was characterized by the predominance of CD163+ cells among studied cells, and the control group was characterized by the predominance of CD163+, CD206+, and CD68+. In patients with MI, biphasic response from kidney cells was characterized for CD80+ and CD206+: their number decreased by the long-term period of MI; other cells did not show any dynamics. The exact number of CD80+ cells in kidneys of individuals without CVD was slightly higher than in patients with MI, and the number of CD206+-strikingly predominant. Subsequent analysis of CD80+ and CD206+ cells in a larger sample, as well as comparison of data with results obtained from survivors of MI, may bring us closer to understanding whether the influence on these cells can serve as a new target in personalized therapy in postinfarction complications.
Insights
Kidney macrophage composition differs in fatal myocardial infarction (MI). Fatal MI patients showed more CD163+ macrophages, while controls had more CD163+, CD206+, and CD68+ cells. This suggests potential therapeutic targets.
Area of Science:
- Renal pathology
- Immunohistochemistry
- Cardiovascular disease research
Background:
- Macrophage (mf) infiltration in kidneys is implicated in various diseases.
- Understanding kidney macrophage profiles in myocardial infarction (MI) is crucial for post-MI complication management.
Purpose of the Study:
- To compare kidney macrophage composition between patients with fatal myocardial infarction (MI) and individuals without cardiovascular diseases (CVD).
- To investigate the roles of M1 (CD80+) and M2 (CD163+, CD206+, stabilin-1+) macrophages in the kidneys post-MI.
Main Methods:
- Autopsy-derived kidney tissue samples were analyzed.
- Immunohistochemistry was employed using markers: CD68 (common mf), CD80 (M1 type), and CD163, CD206, stabilin-1 (M2 type).
Main Results:
- Fatal MI patients exhibited a predominance of CD163+ macrophages.
- Control subjects showed a higher prevalence of CD163+, CD206+, and CD68+ macrophages.
- CD80+ and CD206+ cell counts decreased in the long-term MI group, indicating a biphasic response.
Conclusions:
- Kidney macrophage composition is altered in fatal myocardial infarction.
- Specific macrophage subsets (CD80+, CD206+) show dynamic changes post-MI.
- Further research on CD80+ and CD206+ cells may reveal novel therapeutic targets for post-MI complications.
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