What question did this study set out to answer?

To determine whether interleukin-6 stimulates platelet production directly through the upregulation of thrombopoietin during inflammatory states.

November 1, 2001BloodOpen Access

Interleukin-6 stimulates thrombopoiesis through thrombopoietin: role in inflammatory thrombocytosis

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Why the study?

Does interleukin-6 stimulate thrombopoiesis through the regulation of thrombopoietin?

Population

C57BL/10 mice, HepG2 hepatoblastoma cell line, and cancer patients

Design

Preclinical

Authors

AKArthur KaserUniversity of Cambridge GBGerald BrandacherInnsbruck Medical University WSWolfgang SteurerLeoni (Germany)

Discussion

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Implication

IL-6–TPO pathway links inflammation to thrombocytosis in animals; leaves open human relevance and therapeutic targeting.

Key Points

To determine whether interleukin-6 stimulates platelet production directly through the upregulation of thrombopoietin during inflammatory states.
Administered interleukin-6 to C57BL/10 mice with or without in vivo antibody neutralization of thrombopoietin, analyzing hepatic thrombopoietin mRNA expression and plasma levels.
Assessed transcriptional regulation of thrombopoietin mRNA in the human hepatoblastoma cell line HepG2 following interleukin-6 exposure.
Measured circulating thrombopoietin plasma concentrations in cancer patients undergoing treatment with interleukin-6.
Interleukin-6 treatment significantly increased hepatic thrombopoietin mRNA transcription and raised circulating thrombopoietin plasma levels in both mice and human cancer patients.
Neutralization of thrombopoietin in vivo completely abolished interleukin-6-induced thrombocytosis in mice, demonstrating that thrombopoietin mediates this platelet expansion.

Structured PICO

Does interleukin-6 stimulate thrombopoiesis through the regulation of thrombopoietin?

Population

C57BL/10 mice, HepG2 hepatoblastoma cell line, and cancer patients

Intervention

Interleukin-6 (IL-6) administration (with in vivo TPO neutralization in mice)

Outcome

Hepatic TPO mRNA expression, TPO plasma levels, and platelet countssurrogate

IL-6 induces reactive thrombocytosis by upregulating thrombopoietin production, revealing a novel inflammatory pathway for platelet regulation.

Cite This Study

Kaser et al. (2001) studied this question.

synapsesocial.com/papers/69d570ae75589c71d767de3d https://doi.org/10.1182/blood.v98.9.2720

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Interleukin-6 stimulates thrombopoiesis through thrombopoietin: role in inflammatory thrombocytosis

Discussion

Member takes

Implication

Key Points

Structured PICO

Cite This Study

Interleukin-6 stimulates thrombopoiesis through thrombopoietin: role in inflammatory thrombocytosis

Discussion

Member takes

Implication

Key Points

Structured PICO

Cite This Study

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Also Consider