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Report teaching·Source file updated: Aug 16, 2026

CXCR5 receptor

Dr. Purser’s teaching
Teaching by Dan Purser, MD2 min read

WHAT YOU’LL LEARN

In this articleUnderstand the connectionFollow the pathwayBring these questions to your visit

Understand the connection

CXCR5 is a receptor on cells, rather than a freely circulating cytokine. It receives the CXCL13 signal and helps direct B cells and follicular helper T cells.

Follow the pathway

Dr. Purser connects this navigation system with germinal centers, antibody production, and immune regulation. The name of a receptor on a panel is different from a measurement of how strongly the entire pathway is operating.

Bring these questions to your visit

Ask which result is being discussed: a genetic variant, a measured protein level, or a diagnosed condition. How does it fit with your symptoms and other tests? Dr. Purser discusses antioxidant support alongside these pathways; ask how any supplement would fit with your medicines and care plan.

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