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Semaphorin 4D as a guidance molecule in the immune system
1Perm Federal Research Center of the Ural Branch of the Russian Academy of Sciences, Perm, Russia.
International Reviews of Immunology
|March 31, 2021
Summary
Semaphorin 4D (Sema4D) influences immune cell migration via plexin receptors, revisiting its classic guidance role. This research explores Sema4D
Area of Science:
- Neuroscience
- Immunology
- Cell Biology
Background:
- Semaphorin 4D (Sema4D) is known for axonal guidance in neurons, affecting cytoskeleton and cell migration.
- Sema4D also has immunoregulatory activity, with early studies linking it to immune cell migration.
- Recent findings suggest plexin receptors for Sema4D exist in immune cells, prompting re-evaluation of its guidance role.
Purpose of the Study:
- To review the involvement of Semaphorin 4D (Sema4D) in controlling immune cell migration.
- To elucidate the mechanisms underlying Sema4D's effects on immune cells.
- To assess the potential contribution of Sema4D to immune system development and function.
Main Methods:
- Literature review of studies on Semaphorin 4D (Sema4D) in neuroscience and immunology.
- Analysis of research on Sema4D receptors, including plexins and CD72, in immune cells.
- Synthesis of findings regarding Sema4D's impact on immune cell motility and function.
Main Results:
- Sema4D classically mediates neuronal guidance through plexin receptors and cytoskeleton rearrangement.
- While CD72 is a known immune receptor for Sema4D, recent evidence points to plexin receptor presence in immune cells.
- This suggests Sema4D may function as a guidance molecule for immune cells, similar to its role in neurons.
Conclusions:
- Semaphorin 4D (Sema4D) likely plays a dual role in the immune system, involving both CD72-dependent and plexin-mediated guidance mechanisms.
- Revisiting Sema4D's classic guidance functions offers new insights into immune cell migration control.
- Understanding these mechanisms is crucial for comprehending immune system development and function.
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