Atlas One · Host Biology · Scale 04 — Cellular

Plasma Cell

Terminal effector of B cell differentiation — large oval cell with eccentric nucleus, clock-face chromatin, and massive rough ER secreting 1,000–10,000 antibodies/sec. Long-lived plasma cells in bone marrow are the cellular basis of durable humoral immunity.

Also known as: plasmablast, LLPC, long-lived plasma cell, antibody-secreting cell, ASC

Scale 04 — CellularScale
draftStatus
2026-06-04Last Reviewed
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plasma-cell

Plasma Cell

Terminal effector of B cell differentiation — large oval cell with eccentric nucleus, clock-face chromatin, and massive rough ER secreting 1,000–10,000 antibodies/sec. Long-lived plasma cells in bone marrow are the cellular basis of durable humoral immunity.