Not to be confused with the .Net bindings MonoMac.
Medical condition
monoMAC syndrome
Other names
MonoMAC/DCML, monocytopenia and mycobacterium avium complex/dendritic cell, monocyte, B and NK lymphocyte deficiency
Specialty
Medical genetics
MonoMAC syndrome is a rare autosomal dominant syndrome associated with: monocytopenia, B and NK cell lymphopenia; mycobacterial, viral, fungal, and bacterial opportunistic infections; and virus infection-induced cancers. The disorder often progresses to the development of myelodysplasia, myeloid leukemias, and other types of cancer. MonoMAC is a life-threatening and precancerous disorder.[1][2]
Inactivating mutations in one of the two parental GATA2 genes is responsible for the many diverse presentations of a genetic disorder that groups these presentations together into a single disease termed GATA2 deficiency. These autosomal dominant mutations are known or presumed to cause a reduction, i.e. a haploinsufficiency, in the cellular levels of the gene's product, GATA2. The GATA2 protein is a transcription factor critical for the embryonic development, maintenance, and functionality of blood-forming, lympathic-forming, and other tissue-forming stem cells. In consequence of these mutations, cellular levels of GATA2 are deficient and individuals develop over time hematological, immunological, lymphatic, and/or other disorders that may begin as apparently benign abnormalities but commonly progress to severe organ (e.g. lung) failure, enhanced susceptibility to opportunistic infections, virus infection-induced cancers, the myelodysplastic syndrome, and/or various types of leukemia. MonoMAC is a presentation of GATA2 deficiency that involves primarily signs and symptoms of immune deficiency that cause an extremely high susceptibility to infections and infection-induced benign and malignant tumors. In addition to this, however, MonoMAC-afflicted individuals often show one or more signs and symptoms of other GATA2 presentations.[3][4]
MonoMAC was first described by Vihn and colleagues in 2010 as an autosomal dominant familial disease.[5] One year later, Dickinson and colleagues discovered that the MonoMAC disorder in four individuals was associated with any one of four different mutations in the GATA2 gene.[6] Subsequent studies identified numerous other GATA2 gene mutations that are associated with the development of MonoMAC, showed that these mutations inactivated or were considered likely to inactivate one of two parental GATA2 genes, and found that essentially all individuals with MonoMAC had one of the mutations known or considered to inactivate GATA2.[3]
^Vinh DC, Patel SY, Uzel G, Anderson VL, Freeman AF, Olivier KN, Spalding C, Hughes S, Pittaluga S, Raffeld M, Sorbara LR, Elloumi HZ, Kuhns DB, Turner ML, Cowen EW, Fink D, Long-Priel D, Hsu AP, Ding L, Paulson ML, Whitney AR, Sampaio EP, Frucht DM, DeLeo FR, Holland SM (Feb 2010). "Autosomal dominant and sporadic monocytopenia with susceptibility to mycobacteria, fungi, papillomaviruses, and myelodysplasia". Blood. 115 (8): 1519–29. doi:10.1182/blood-2009-03-208629. PMC 2830758. PMID 20040766.
^Hsu AP, Sampaio EP, Khan J, Calvo KR, Lemieux JE, Patel SY, Frucht DM, Vinh DC, Auth RD, Freeman AF, Olivier KN, Uzel G, Zerbe CS, Spalding C, Pittaluga S, Raffeld M, Kuhns DB, Ding L, Paulson ML, Marciano BE, Gea-Banacloche JC, Orange JS, Cuellar-Rodriguez J, Hickstein DD, Holland SM (Jun 2011). "Mutations in GATA2 are associated with the autosomal dominant and sporadic monocytopenia and mycobacterial infection (MonoMAC) syndrome". Blood. 118 (10): 2653–5. doi:10.1182/blood-2011-05-356352. PMC 3172785. PMID 21670465.
^Hirabayashi S, Wlodarski MW, Kozyra E, Niemeyer CM (August 2017). "Heterogeneity of GATA2-related myeloid neoplasms". International Journal of Hematology. 106 (2): 175–182. doi:10.1007/s12185-017-2285-2. PMID 28643018.
^Vinh DC, Patel SY, Uzel G, Anderson VL, Freeman AF, Olivier KN, Spalding C, Hughes S, Pittaluga S, Raffeld M, Sorbara LR, Elloumi HZ, Kuhns DB, Turner ML, Cowen EW, Fink D, Long-Priel D, Hsu AP, Ding L, Paulson ML, Whitney AR, Sampaio EP, Frucht DM, DeLeo FR, Holland SM (Feb 2010). "Autosomal dominant and sporadic monocytopenia with susceptibility to mycobacteria, fungi, papillomaviruses, and myelodysplasia". Blood. 115 (8): 1519–29. doi:10.1182/blood-2009-03-208629. PMC 2830758. PMID 20040766.
^Dickinson RE, Griffin H, Bigley V, Reynard LN, Hussain R, Haniffa M, Lakey JH, Rahman T, Wang XN, McGovern N, Pagan S, Cookson S, McDonald D, Chua I, Wallis J, Cant A, Wright M, Keavney B, Chinnery PF, Loughlin J, Hambleton S, Santibanez-Koref M, Collin M (September 2011). "Exome sequencing identifies GATA-2 mutation as the cause of dendritic cell, monocyte, B and NK lymphoid deficiency". Blood. 118 (10): 2656–8. doi:10.1182/blood-2011-06-360313. PMC 5137783. PMID 21765025.
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