Related Experiment Video
Updated: Aug 9, 2025
04:34
Mouse Complete Stasis Model of Inferior Vena Cava Thrombosis
Published on: June 15, 2011
18.4K
Experimental venous thrombus resolution is driven by IL-6 mediated monocyte actions
Andrea T Obi1,2, Sriganesh B Sharma3, Megan A Elfline3
1Conrad Jobst Vascular Research Laboratories, University of Michigan Medical School, Ann Arbor, USA. henke@umich.edu.
Scientific Reports
|February 24, 2023
Summary
Interleukin-6 (IL-6) is crucial for resolving deep vein thrombosis. Monocytes produce IL-6, which aids in breaking down clots by regulating matrix metalloproteinase-9 (MMP-9) activity.
Area of Science:
- Vascular Biology
- Immunology
- Thrombosis Research
Background:
- Deep venous thrombosis (DVT) resolution is linked to circulating Interleukin-6 (IL-6) levels.
- The cellular origins and specific functions of IL-6 in thrombus resolution remain unclear.
Purpose of the Study:
- To investigate the cellular source and functional role of IL-6 in venous thromboembolism (VTE) resolution.
- To determine if IL-6 deficiency impacts thrombus burden and recanalization.
Main Methods:
- Venous thrombosis (VT) was induced in wild-type (WT) and IL-6 knockout (IL-6-/-) mice.
- Vein walls and thrombi were analyzed using western blot, immunohistochemistry, and flow cytometry.
- Adoptive transfer of WT monocytes into IL-6-/- mice was performed.
Main Results:
- IL-6 and its receptor CD126 were elevated in vein walls and thrombi over time.
- Ly6C-low monocytes/macrophages were identified as the primary source of IL-6.
- IL-6-/- mice exhibited larger, non-resolving thrombi with impaired neovascularization and reduced matrix metalloproteinase activity, specifically MMP-9.
Conclusions:
- IL-6 signaling, primarily from monocytes, is essential for effective thrombus resolution.
- Impaired IL-6 signaling leads to increased thrombus burden and reduced recanalization, potentially via MMP-9 dysregulation.
- Targeting monocyte-mediated IL-6 signaling may offer a novel therapeutic strategy for improving VTE outcomes.
More Related Videos
06:44Deep Vein Thrombosis Induced by Stasis in Mice Monitored by High Frequency Ultrasonography
Published on: April 13, 2018
10.1K
07:05Visualization of Neutrophil Extracellular Traps in Mesenteric Venules After Mesenteric Ischemia-Reperfusion Injury via Intravital Microscopy
Published on: September 27, 2024
528
Related Concept Videos
01:29Venous Thrombosis III: Interprofessional Care
15
Venous thrombosis requires effective prevention and treatment strategies to improve patient outcomes and reduce potential complications.Prevention StrategiesHealthcare providers must prioritize preventing venous thromboembolism (VTE) for all adult patients upon admission. Interventions depend on bleeding and thrombosis risk, medical history, current medications, diagnoses, planned procedures, and patient preferences. Patients on bed rest should change positions every two hours and, if not...
15
01:30Venous Thrombosis I: Introduction
19
Venous thrombosis, the most common disorder of the veins, involves the formation of a thrombus or blood clot associated with vein inflammation. It can be classified as either superficial vein thrombosis or deep vein thrombosis.Superficial Vein Thrombosis: This involves the formation of a thrombus in a superficial vein, usually the greater or lesser saphenous vein. Though less severe than deep vein thrombosis (DVT), SVT can lead to complications if untreated.Deep Vein Thrombosis (DVT): This...
19
01:20Venous Thrombosis II: Clinical Manifestations and Diagnostic Studies
23
The key difference between Superficial Vein Thrombosis (SVT) and Deep Vein Thrombosis (DVT) lies in their location and severity.Clinical ManifestationsSVT typically presents with localized pain, tenderness, and redness along the course of a superficial vein, often accompanied by a palpable, cord-like structure under the skin. This condition is usually less dangerous than DVT but can be uncomfortable and may lead to complications such as cellulitis or, rarely, a clot extension into the deep...
23
01:30Venous Thrombosis IV: Nursing Management
18
Nursing management begins with a thorough assessment of the patient's health history. Key factors include trauma to veins, peripherally inserted central catheters, varicose veins, recent pregnancy or childbirth, surgery, bacteremia, prolonged bed rest, atrial fibrillation, COPD, heart failure, cancer, coagulation disorders, myocardial infarction, spinal cord injury, stroke, prolonged travel, recent bone fractures, and dehydration. Review medication intake, particularly oral contraceptives,...
18
01:16Clot Retraction and Fibrinolysis
6.6K
After a fibrin clot is formed, the next step is clot retraction, a vital process facilitated by platelet contractile proteins, such as actin and myosin. These proteins pull the fibrin strands closer together and condense the clot. This action reduces the size of the clot, creating a smaller, denser structure that effectively seals off the damaged vessel. Clot retraction consolidates the clot and helps with wound healing by bringing the edges of the damaged blood vessel closer together.
6.6K
01:30Anticoagulant Drugs: Low-Molecular-Weight Heparins
809
Hemostasis is a crucial process that prevents excessive blood loss from damaged blood vessels. It involves various mechanisms such as vasoconstriction, platelet adhesion and activation, and fibrin formation. The importance of each mechanism depends on the type of vessel injury. In contrast, thrombosis is the abnormal formation of a blood clot within the blood vessels, leading to potential complications if the clot obstructs blood flow. Thrombosis can be caused by increased coagulability of the...
809