PUBLICATION

Gaucher disease protects against tuberculosis

Authors
Fan, J., Hale, V.L., Lelieveld, L.T., Whitworth, L.J., Busch-Nentwich, E.M., Troll, M., Edelstein, P.H., Cox, T.M., Roca, F.J., Aerts, J.M.F.G., Ramakrishnan, L.
ID
ZDB-PUB-230207-24
Date
2023
Source
Proceedings of the National Academy of Sciences of the United States of America   120: e2217673120e2217673120 (Journal)
Registered Authors
Busch-Nentwich, Elisabeth, Roca, Francisco Jose
Keywords
Gaucher disease, lysosomal glucosylsphingosine, macrophages, tuberculosis resistance, zebrafish
MeSH Terms
  • Animals
  • Gaucher Disease*/genetics
  • Glucosylceramidase/genetics
  • Mutation
  • Tuberculosis*/genetics
  • Tuberculosis*/prevention & control
  • Zebrafish/genetics
PubMed
36745788 Full text @ Proc. Natl. Acad. Sci. USA
Abstract
Biallelic mutations in the glucocerebrosidase (GBA1) gene cause Gaucher disease, characterized by lysosomal accumulation of glucosylceramide and glucosylsphingosine in macrophages. Gaucher and other lysosomal diseases occur with high frequency in Ashkenazi Jews. It has been proposed that the underlying mutations confer a selective advantage, in particular conferring protection against tuberculosis. Here, using a zebrafish Gaucher disease model, we find that the mutation GBA1 N370S, predominant among Ashkenazi Jews, increases resistance to tuberculosis through the microbicidal activity of glucosylsphingosine in macrophage lysosomes. Consistent with lysosomal accumulation occurring only in homozygotes, heterozygotes remain susceptible to tuberculosis. Thus, our findings reveal a mechanistic basis for protection against tuberculosis by GBA1 N370S and provide biological plausibility for its selection if the relatively mild deleterious effects in homozygotes were offset by significant protection against tuberculosis, a rampant killer of the young in Europe through the Middle Ages into the 19th century.
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