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Updated: Aug 7, 2026

Time-lapse Imaging of Mouse Macrophage Chemotaxis
Published on: April 2, 2020
[The chemotaxis effect of ampelopsin on the immunocytes]
Sa Zeng1, Gao-Qin Luo, De-Yu Liu
1School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510080, China.
Insights
Ampelopsin significantly enhances the migration of monocytes and neutrophilic granulocytes. This compound also shows a synergistic effect with chemokines Interleukin-8 (IL-8) and Monocyte Chemoattractant Protein-1 (MCP-1).
Area of Science:
- Immunology
- Pharmacology
- Cell Biology
Context:
- Monocytes and neutrophilic granulocytes are key immune cells involved in inflammatory responses.
- Chemokines like IL-8 and MCP-1 are crucial regulators of immune cell migration.
- Ampelopsin is a natural compound with potential therapeutic applications.
Purpose:
- To investigate the chemotaxis and chemokinesis effects of ampelopsin on monocytes and neutrophilic granulocytes.
- To compare the efficacy of ampelopsin with standard chemokines IL-8 and MCP-1.
- To determine if ampelopsin acts synergistically with IL-8 or MCP-1.
Summary:
- Ampelopsin demonstrated a dose-dependent enhancement of monocyte and neutrophilic granulocyte migration.
- At concentrations of 25.6 microg/ml and 51.2 microg/ml, ampelopsin significantly boosted cell migration.
- Ampelopsin exhibited a synergistic action with IL-8 and MCP-1, amplifying their chemotactic effects.
Impact:
- Ampelopsin shows promise as an immune-modulating agent.
- Findings suggest potential therapeutic strategies involving ampelopsin for inflammatory conditions.
- This study provides insights into the mechanisms of immune cell recruitment.
Objective:
To study the chemotaxis effect of ampelopsin with different concentration on monocytes and neutrophilic granulocytes.
Methods:
Chemokinesis and chemotaxis tests were proceed in agarose gel comparing with chemokine IL-8 or MCP-1.
Results:
At 25.6 microg/ml or 51.2 microg/ml, ampelopsin could strongly enhance the migration of neutrophilic granulocytes and monocytes. The chemotaxis effect induced by 25.6 microg/ml of ampelopsin had no significant differences with that induced by 150 ng/ml of IL-8 or 50 ng/ml of MCP-1 (P > 0.05). At a concentration of 12.8 microg/ml, the chemokime effect of ampelopsin was more potent than that of 150 ng/ml of IL-8 or 100 ng/ml of MCP-1 (P < 0.05). Ampelopsin exerted a synergistic action with IL-8 or MCP-1 on its chemotaxis effect to neutrophilic granulocytes and monocytes.
Conclusion:
Ampelopsin can strongly enhance the chemokinesis and chemotaxis effects of neutrophilic granulocytes and moncytes and exert a synergistic action with IL-8 or MCP-1 on its chemotaxis effect to neutrophilic granulocytes and monocytes.
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