Genes & pathways

Gene & pathway reference · FROM DR. PURSER’S TEACHING

IL17A

IL17A encodes interleukin-17A, a cytokine involved in defense at tissue barriers and inflammatory signaling. It belongs to the Th17 pathway, which is supported by signals including IL-23.

Updated Sep 23, 2026 · Educational reference

THE TEACHING CONNECTION

Th17 signaling and persistent inflammation

Th17 signaling and persistent inflammation

IL17A encodes interleukin-17A, a cytokine involved in defense at tissue barriers and inflammatory signaling. It belongs to the Th17 pathway, which is supported by signals including IL-23.

How Dr. Purser connects the pieces

Dr. Purser discusses this pathway in chronic inflammatory settings, including his sickle-cell teaching. IL17A, IL23A and IL23R represent different parts of the same network: a downstream signal, an upstream cytokine component and a receptor. Their variants do not diagnose an inflammatory disease or select an immune-targeting drug.

Where the VARS Triad and MTHFR Daily fit

In Dr. Purser’s treatment framework, the VARS Triad—VARS Glutathione, VARS SOD and VARS Catalase—together with MTHFR Daily is a central consideration when homocysteine or cytokine issues are involved. He emphasizes VARS Glutathione as a foundational functional-support component across his genetic SNP teaching. The individual gene lesson explains how its pathway connects to that broader approach.

This describes the Purser treatment model, not proof that a product corrects a variant or treats every associated condition. Product choice, formulation, sequence and amount depend on the individual assessment, existing medicines, current findings and tolerance.

A question to bring to your visit

What diagnosed condition or clinical finding makes the IL-23/Th17 pathway relevant here?

Variant lookup

These teaching identifiers include regional research markers. Match them to your original laboratory report; listing alone does not establish clinical significance or a treatment need.

Names you may see

IL-17A · Interleukin 17A