Abstract

It is now well accepted that plasma cells can become long-lived (memory) plasma cells and secrete antibodies for months, years or a lifetime. However, the mechanisms involved in this process of humoral memory, which is crucial for both protective immunity and autoimmunity, still are not fully understood. This article will address a number of open questions. For example: Is longevity of plasma cells due to their intrinsic competence, extrinsic factors, or a combination of both? Which internal signals are involved in this process? What factors provide external support? What survival factors play a part in inflammation and autoreactive disease? Internal and external factors that contribute to the maintenance of memory long-lived plasma cells will be discussed. The aim is to provide useful additional information about the maintenance of protective and autoreactive memory plasma cells that will help researchers design effective vaccines for the induction of life-long protection against infectious diseases and to efficiently target pathogenic memory plasma cells.

Highlights

  • It is well accepted that plasma cells can become long-lived plasma cells and secrete antibodies for months, years or a lifetime

  • For example: Is longevity of plasma cells due to their intrinsic competence, extrinsic factors, or a combination of both? Which internal signals are involved in this process? What factors provide external support? What survival factors play a part in inflammation and autoreactive disease? Internal and external factors that contribute to the maintenance of memory long-lived plasma cells will be discussed

  • Zbtb20 conditional knockout mice are characterized by a blunted antibody response and a significant loss of plasma cells in the bone marrow; these findings indicate that Zbtb20 is essential for the maintenance of memory plasma cells in the bone marrow and for the persistence of antigen-specific immunoglobulin levels in serum [101]

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Summary

The Maintenance of Memory Plasma Cells

Laleh Khodadadi 1,2†, Qingyu Cheng , 1,2† Andreas Radbruch 1 and Falk Hiepe 1,2*. Reviewed by: Paolo Casali, University of Texas Health Science Center San Antonio, United States. It is well accepted that plasma cells can become long-lived (memory) plasma cells and secrete antibodies for months, years or a lifetime. The mechanisms involved in this process of humoral memory, which is crucial for both protective immunity and autoimmunity, still are not fully understood. Which internal signals are involved in this process? What survival factors play a part in inflammation and autoreactive disease? Internal and external factors that contribute to the maintenance of memory long-lived plasma cells will be discussed. The aim is to provide useful additional information about the maintenance of protective and autoreactive memory plasma cells that will help researchers design effective vaccines for the induction of life-long protection against infectious diseases and to efficiently target pathogenic memory plasma cells

HISTORICAL ASPECTS OF MEMORY PLASMA CELLS
Cellular Compartments
Molecular Niche Components
INTRACELLULAR FACTORS AND MECHANISMS
Other Factors
MAINTENANCE OF MEMORY PLASMA CELLS IN INFLAMED TISSUES
Molecular compartments
Others Factors
Epithelial infiltrating mononuclear cells Ductal and acinar epithelia
Findings
CONCLUSION
Full Text
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