Reticular dysgenesis
Human disease
Reticular dysgenesis (RD) is a rare, inherited autosomal recessive disease that results in immunodeficiency. Individuals with RD have mutations in both copies of the AK2 gene. Mutations in this gene lead to absence of AK2 protein. AK2 protein allows hematopoietic stem cells to differentiate and proliferate. Hematopoietic stem cells give rise to blood cells.
Differentiation and proliferation of hematopoietic stem cells require a lot of energy and this energy is supplied by the mitochondria. The energy metabolism of mitochondria is regulated by the AK2 protein. If there is a mutation in the protein, that means that the mitochondria metabolism most likely will be altered and will not be able to provide enough energy to the hematopoietic stem cells. As a result, hematopoietic stem cells will not be able to differentiate or proliferate.
The immune system consists of specialized cells that work together to fight off bacteria, fungi and viruses.
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Vocabulary and entity names are the principal evidence signals here, because they determine the precision of every later search. The source revision retrieved here is dated Aug 13, 2026. The linked authority identifier is Q7316718. None of the 0 selected statements returned an explicit reference.
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This entry incorporates text from “Reticular dysgenesis” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.