Plasma cell purification from murine bone marrow using a two-step isolation approach

Area of Science:

• Immunology
• Cell Biology

Background:

• Plasma cells are crucial antibody-secreting cells with increasing research interest.
• Ex vivo studies of primary plasma cells are limited by isolation difficulties.
• Previous methods required large numbers of plasma cells, hindering research.

Purpose of the Study:

• To establish a protocol for rapid isolation of primary plasma cells ex vivo.
• To facilitate further research into plasma cell biology and function.
• To overcome the challenge of obtaining sufficient plasma cells for experimental analysis.

Main Methods:

• A two-step isolation protocol was employed.
• Column enrichment was used for initial purification.
• Fluorescence-activated cell sorting (FACS) based on CD138 surface expression was performed.
• Purification was conducted on murine bone marrow samples.

Main Results:

• Plasma cells were successfully purified from murine bone marrow.
• The isolation protocol yielded results in approximately 5 hours.
• The method utilizes CD138 (Syndecan-1) surface marker for sorting.
• This protocol enables the study of freshly isolated plasma cells ex vivo.

Conclusions:

• A time-efficient protocol for isolating plasma cells ex vivo has been developed.
• This method addresses the need for large numbers of primary plasma cells in research.
• The protocol facilitates future investigations into plasma cell longevity and transcriptional control.