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Related Concept Videos

Blood and Nerve Supply to the Kidney01:18

Blood and Nerve Supply to the Kidney

The kidneys are vital organs responsible for filtering and cleaning blood, removing waste products, and regulating electrolyte levels. To perform these essential functions, they require a constant and robust blood supply.
Bloody Supply to the Kidneys:
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Acute Kidney Injury II: Pathophysiology01:29

Acute Kidney Injury II: Pathophysiology

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Chronic Kidney Disease II: Clinical Manifestations

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Gastritis-II: Pathophysiology

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Internal Anatomy of the Kidney01:12

Internal Anatomy of the Kidney

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The outermost region of the kidney is the...
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Chronic Kidney Disease I: Introduction

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Detection of MicroRNA Expression in the Kidneys of Immunoglobulin A Nephropathic Mice
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The mucosa-bone-marrow axis in IgA nephropathy.

Yusuke Suzuki1, Yasuhiko Tomino

  • 1Division of Nephrology, Department of Internal Medicine, Juntendo University School of Medicine, Tokyo, Japan. yusuke@med.juntendo.ac.jp

Contributions to Nephrology
|May 15, 2007
PubMed
Summary

Abnormal immune regulation in the mucosa-bone-marrow axis may cause IgA nephropathy. Animal models reveal altered mucosal IgA responses and increased bone marrow memory cells, suggesting a failure in antigen elimination.

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Area of Science:

  • Immunology
  • Nephrology
  • Pathogenesis of IgA Nephropathy

Background:

  • Abnormal humoral and cellular immunity are implicated in IgA nephropathy pathogenesis.
  • Clinical evidence suggests a role for bone marrow cells and mucosal immunity.
  • Impaired immune regulation in the 'mucosa-bone-marrow axis' is postulated but mechanisms are unclear.

Purpose of the Study:

  • To investigate the underlying mechanisms of IgA nephropathy pathogenesis.
  • To explore the interrelation between bone marrow and mucosal cells in disease induction.
  • To utilize established animal models for mechanistic studies.

Main Methods:

  • Establishment and utilization of novel animal models for IgA nephropathy.
  • Analysis of mucosal IgA responses and immune cell populations.
  • Correlation of findings with clinical feedback.

Main Results:

  • Animal models suggest altered mucosal IgA responses linked to Th2-biased immunity or innate immune dysregulation.
  • Evidence points to a failure in mucosal antigen elimination.
  • Increased memory cells in the bone marrow were observed.

Conclusions:

  • The 'mucosa-bone-marrow axis' plays a critical role in IgA nephropathy.
  • Dysregulation of mucosal immunity and antigen handling contributes to disease development.
  • Animal models provide valuable insights into IgA nephropathy pathogenesis.