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Research paper

Glucocorticoids promote intrinsic human TH17 differentiation

Glucocorticoids can paradoxically promote Th17 differentiation by suppressing IL-2. Demonstrated in human cells; mechanistic basis for apparent post-steroid Th17 skew.

Indexed context

(2018 authors)

glucocorticoidsth17cytokine-interpretationsteroid-confounder

Markdown path

content/research/papers/2018-glucocorticoids-th17-jaci.md

Findings

Glucocorticoids can paradoxically promote Th17 differentiation by suppressing IL-2. Demonstrated in human cells; mechanistic basis for apparent post-steroid Th17 skew.

Why it may matter for Levi

Critical caveat for interpreting Levi's April 6, 2026 serum Th17 elevation, which was drawn after the methylprednisolone pulse. The Th17 signature may partly reflect post-steroid physiology rather than the underlying inflammatory state. Drives the repeat-serum-cytokine-off-steroids diagnostic item.

Paper text

Glucocorticoids promote intrinsic human TH17 differentiation

(2018 authors) — Journal of Allergy and Clinical Immunology (2018). https://www.jacionline.org/article/S0091-6749(18)31126-6/pdf

Findings summary

Glucocorticoids can paradoxically promote Th17 differentiation by suppressing IL-2. Demonstrated in human cells; mechanistic basis for apparent post-steroid Th17 skew.

Relevance to Levi

Critical caveat for interpreting Levi's April 6, 2026 serum Th17 elevation, which was drawn after the methylprednisolone pulse. The Th17 signature may partly reflect post-steroid physiology rather than the underlying inflammatory state. Drives the repeat-serum-cytokine-off-steroids diagnostic item.

Provenance

  • Ingested 2026-04-16 as part of the batch literature pass supporting the Root Cause Theories, diagnostics, and treatments workspaces.
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  • Companion memo: content/research/notes/2026-04-16-literature-pass.md