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Related Concept Videos

Immunodeficiency Diseases01:25

Immunodeficiency Diseases

Immunodeficiency disorders are conditions in which the immune system's ability to fight infectious disease and cancer is compromised or entirely absent. The immune system comprises a complex network of cells, tissues, and organs that work together to protect the body from potentially harmful invaders. When this system is deficient or not functioning properly, it leaves the body susceptible to infections, diseases, or other complications.
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Updated: Jun 17, 2026

Neutrophil Lifespan Extension with CLON-G and an In Vitro Spontaneous Death Assay
05:52

Neutrophil Lifespan Extension with CLON-G and an In Vitro Spontaneous Death Assay

Published on: May 12, 2023

Congenital neutropenia.

Christoph Klein1

  • 1Department of Pediatric Hematology/Oncology, Medical School of Hannover, Hannover, Germany. klein.christoph@mhhannover.de

Hematology. American Society of Hematology. Education Program
|December 17, 2009
PubMed
Summary
This summary is machine-generated.

Congenital neutropenia (CN) involves diverse genetic causes affecting neutrophil development. This review details genetic defects, diagnostic approaches, and therapies for CN syndromes.

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Published on: February 21, 2018

Area of Science:

  • Immunology
  • Genetics
  • Hematology

Background:

  • Congenital neutropenia (CN) is a group of disorders characterized by low neutrophil counts.
  • Genetic heterogeneity underlies various phenotypic traits of CN.
  • Molecular insights have advanced understanding of neutrophil differentiation and function.

Purpose of the Study:

  • To review diagnostic and therapeutic strategies for congenital neutropenia.
  • To cover recent molecular and pathophysiological insights into CN syndromes.
  • To highlight the genetic basis of both syndromic and non-syndromic forms of CN.

Main Methods:

  • Literature review of congenital neutropenia.
  • Analysis of genetic defects in syndromic and non-syndromic CN.
  • Discussion of molecular pathophysiology and diagnostic classifications.

Main Results:

  • Non-syndromic CN is linked to mutations in ELA2, HAX1, GFI1, or WAS.
  • Syndromic CN involves defects in genes related to glucose metabolism, lysosomal function, ribosomal proteins, or mitochondrial proteins.
  • Many CN cases remain genetically unclassified despite progress.

Conclusions:

  • Genetic elucidation has significantly advanced the understanding of CN.
  • Accurate genetic classification remains a challenge for many patients.
  • This review provides insights into the diagnosis and treatment of congenital neutropenia.