Cryptococcal meningitis (CM) is a dominant cause of morbidity and mortality among patients with human immunodeficiency virus/ acquired immune deficiency syndrome (HIV/AIDS) caused by Cryptococcus neoformans and Cryptococcus gattii species complex. The complex is composed of closely related members, yet with diverse epidemiology, pathogenesis, and drug-resistant pattern. Cell-mediated immunity is the strongest pillar in immunity to cryptococcosis, further worsening HIV/AIDS patients' scenario. Antifungal resistance and immune evasion again tilt the host-parasite balance in favor of the fungal pathogen. In this regard, researchers are actively challenged to discover immunotherapy and vaccine for CM, to produce specific treatment and prevention that will address CM conventional therapeutics failure. As the major capsular polysaccharide of the Cryptococcus, which is tightly linked to pathogenicity, immunogenicity, and immune evasion, the glucuronoxylomannan (GXM) is cardinally targeted for vaccine and immunotherapy development. Further, the amount of GXM shed in body fluids correlates with the disease severity. Herein, we reviewed the literature with the journey so far in line with GXM as the salient immunological target on cryptococcosis.
Citation: Mansur Aliyu, Ali Akbar Saboor-Yaraghi, Sadegh Khodavaisy, Behrouz Robat-Jazi, Muhammad Ibrahim Getso. Glucuronoxylomannan: the salient polysaccharide in cryptococcal immunity[J]. AIMS Allergy and Immunology, 2022, 6(2): 71-89. doi: 10.3934/Allergy.2022008
Cryptococcal meningitis (CM) is a dominant cause of morbidity and mortality among patients with human immunodeficiency virus/ acquired immune deficiency syndrome (HIV/AIDS) caused by Cryptococcus neoformans and Cryptococcus gattii species complex. The complex is composed of closely related members, yet with diverse epidemiology, pathogenesis, and drug-resistant pattern. Cell-mediated immunity is the strongest pillar in immunity to cryptococcosis, further worsening HIV/AIDS patients' scenario. Antifungal resistance and immune evasion again tilt the host-parasite balance in favor of the fungal pathogen. In this regard, researchers are actively challenged to discover immunotherapy and vaccine for CM, to produce specific treatment and prevention that will address CM conventional therapeutics failure. As the major capsular polysaccharide of the Cryptococcus, which is tightly linked to pathogenicity, immunogenicity, and immune evasion, the glucuronoxylomannan (GXM) is cardinally targeted for vaccine and immunotherapy development. Further, the amount of GXM shed in body fluids correlates with the disease severity. Herein, we reviewed the literature with the journey so far in line with GXM as the salient immunological target on cryptococcosis.
rhenium-188
bismuth-213
cryptococcal antigen latex agglutination system
cryptococcosis-associated immune reconstitution inflammatory syndrome
cryptococcal meningitis
central nervous system
cryptococcal capsular antigen
cetyltrimethylammonium bromide
dendritic cells
enzyme immunoassay
galactoxylomannan
glucuronoxylomannan
glucuronoxylomanogalactan
GXM-specific chimeric antigen receptor
GXM conjugated to tetanus toxoid
human immunodeficiency virus/acquired immune deficiency syndrome
human leukocyte antigen
intracranial pressure
interferon-gamma
interleukin
immuno-mycologics
lateral flow assay
major histocompatibility complex
monophosphoryl lipid A
neutrophil extracellular traps
nod-like receptors (NLR) family pyrin domain containing 3
P13 conjugated to bovine serum albumin
P13 conjugated to tetanus toxoid
professional antigen presenting cells
regulated upon activation, normal T cell expressed and secreted
reactive oxygen species
severe combined immunodeficiency
sheep red blood cells
T11 Target structure
toll-like receptors
tumour necrosis factor-alpha
tetanus toxoid
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