Challenges of Diagnosing Mendelian Susceptibility to Mycobacterial Diseases in South Africa. Scholtz, D., Jooste, T., Möller, M., van Coller, A., Kinnear, C., & Glanzmann, B. International Journal of Molecular Sciences, 24(15):12119, July, 2023. doi abstract bibtex Inborn errors of immunity (IEI) are genetic disorders with extensive clinical presentations. They can range from increased susceptibility to infections to significant immune dysregulation that results in immune impairment. While IEI cases are individually rare, they collectively represent a significant burden of disease, especially in developing countries such as South Africa, where infectious diseases like tuberculosis (TB) are endemic. This is particularly alarming considering that certain high penetrance mutations that cause IEI, such as Mendelian Susceptibility to Mycobacterial Disease (MSMD), put individuals at higher risk for developing TB and other mycobacterial diseases. MSMD patients in South Africa often present with different clinical phenotypes than those from the developed world, therefore complicating the identification of disease-associated variants in this setting with a high burden of infectious diseases. The lack of available data, limited resources, as well as variability in clinical phenotype are the reasons many MSMD cases remain undetected or misdiagnosed. This article highlights the challenges in diagnosing MSMD in South Africa and proposes the use of transcriptomic analysis as a means of potentially identifying dysregulated pathways in affected African populations.
@article{scholtz_challenges_2023,
title = {Challenges of {Diagnosing} {Mendelian} {Susceptibility} to {Mycobacterial} {Diseases} in {South} {Africa}},
volume = {24},
issn = {1422-0067},
doi = {10.3390/ijms241512119},
abstract = {Inborn errors of immunity (IEI) are genetic disorders with extensive clinical presentations. They can range from increased susceptibility to infections to significant immune dysregulation that results in immune impairment. While IEI cases are individually rare, they collectively represent a significant burden of disease, especially in developing countries such as South Africa, where infectious diseases like tuberculosis (TB) are endemic. This is particularly alarming considering that certain high penetrance mutations that cause IEI, such as Mendelian Susceptibility to Mycobacterial Disease (MSMD), put individuals at higher risk for developing TB and other mycobacterial diseases. MSMD patients in South Africa often present with different clinical phenotypes than those from the developed world, therefore complicating the identification of disease-associated variants in this setting with a high burden of infectious diseases. The lack of available data, limited resources, as well as variability in clinical phenotype are the reasons many MSMD cases remain undetected or misdiagnosed. This article highlights the challenges in diagnosing MSMD in South Africa and proposes the use of transcriptomic analysis as a means of potentially identifying dysregulated pathways in affected African populations.},
language = {eng},
number = {15},
journal = {International Journal of Molecular Sciences},
author = {Scholtz, Denise and Jooste, Tracey and Möller, Marlo and van Coller, Ansia and Kinnear, Craig and Glanzmann, Brigitte},
month = jul,
year = {2023},
pmid = {37569495},
pmcid = {PMC10418440},
keywords = {Genetic Predisposition to Disease, Humans, MSMD, Mutation, Mycobacterium Infections, NGS, Phenotype, South Africa, Tuberculosis, genes, inborn errors of immunity, transcriptomics, tuberculosis},
pages = {12119},
}
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This is particularly alarming considering that certain high penetrance mutations that cause IEI, such as Mendelian Susceptibility to Mycobacterial Disease (MSMD), put individuals at higher risk for developing TB and other mycobacterial diseases. MSMD patients in South Africa often present with different clinical phenotypes than those from the developed world, therefore complicating the identification of disease-associated variants in this setting with a high burden of infectious diseases. The lack of available data, limited resources, as well as variability in clinical phenotype are the reasons many MSMD cases remain undetected or misdiagnosed. 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