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Updated: Jun 10, 2026

Qualitative and Quantitative Analysis of the Immune Synapse in the Human System Using Imaging Flow Cytometry
Published on: January 7, 2019
[Leukocyte synapse: structure, function and significance]
Ke-Fu Wu1, Guo-Guang Zheng, Xiao-Tong Ma
1State Key Laboratory of Experimental Hematology, Institute of Hematology & Blood Disease Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China. hiwukefu@yahoo.com.cn
Insights
Leukocyte synapses, including immunological and virological synapses, form dynamic networks for cell communication and viral transmission. These structures, like flower-like polysynapses, are crucial in immune responses and persistent infections.
Area of Science:
- Cellular Biology
- Immunology
- Virology
Context:
- The immune system relies on complex cellular interactions.
- Leukocyte synapses, such as immunological synapses (IS), are dynamic structures enabling temporary cellular networks.
- Virological synapses (VS) are observed in viral-infected lymphocytes, facilitating viral transmission.
Purpose:
- To review the structure and function of leukocyte synapses.
- To discuss the significance of these cellular structures in health and disease.
- To present novel observations of flower-like polysynapses in EB virus-infected cells.
Summary:
- Leukocyte synapses are dynamic structures classified into synapse and kinase types, with variations among different leukocytes.
- Inflammatory, leukemic, and virally infected cells exhibit unique IS and VS patterns.
- Flower-like polysynapses, a multi-tunneling nanotube structure, have been observed in EB virus-infected human leukemic cells.
Impact:
- Understanding leukocyte synapses is key to comprehending immune responses and viral pathogenesis.
- These structures play a role in efficient viral transmission and immune evasion, potentially leading to persistent infections.
- Further research into leukocyte synapses may reveal new therapeutic targets for infectious diseases and leukemia.
Abstract:
Neuronal synapse is the critical structure of neuronal network. Immune system is mainly consisted of invisible network. Recently, evidence showed that leukocyte synapses between immune cells named as immunological synapses (IS), were formed under some functional conditions to form temporal local network. In fact, they are dynamic structures, which can be classified into synapse and kinase. Different leukocytes have different synapses. Inflammatory and leukemic cells showed special patterns of IS. Similar structure is also observed in some viral infected lymphocytes, which is called virological synapse (VS). This is one of the mechanisms for viral transmission, not only enhancing the transmission efficiency but also mediating the escape from antibody neutralization, leading persistent infection. Recently the flower-like poly synapses was reported by French scientists. This is a multi-tunneling nanotube flower-like structure on cell surface. We had observed this kind of structure in EB virus infected human leukemic cell line J6-2. In this paper, the structure and function of leukocyte synapses are reviewed combined with authors' own work. Their significance is discussed.
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