» Articles » PMID: 21998476

Hemoglobin S and C Heterozygosity Enhances Neither the Magnitude nor Breadth of Antibody Responses to a Diverse Array of Plasmodium Falciparum Antigens

Overview
Journal J Infect Dis
Date 2011 Oct 15
PMID 21998476
Citations 25
Authors
Affiliations
Soon will be listed here.
Abstract

Background: Heterozygous states of hemoglobin (Hb) A and HbS (HbAS, sickle-cell trait) or HbC (HbAC) protect against Plasmodium falciparum malaria by unclear mechanisms. Several studies suggest that HbAS and HbAC accelerate the acquisition of immunity to malaria, possibly by enhancing P. falciparum-specific antibody responses.

Methods: We used a protein microarray representing 491 P. falciparum proteins expressed during exoerythrocytic and erythrocytic stages of the life cycle to test the hypothesis that HbAS and HbAC enhance the P. falciparum-specific IgG response compared with normal HbAA. Plasma samples were collected from Malian children aged 2-10 years before and after a 6-month malaria season and were probed against the microarray. Immunoglobulin G (IgG) profiles of children with HbAA (n = 106), HbAS (n = 15), and HbAC (n = 20) were compared.

Results: Although the magnitude and breadth of P. falciparum-specific IgG responses increased with age and from before to after the malaria season in each antigen category, Hb type did not independently predict significant differences in P. falciparum-specific IgG profiles.

Conclusions: These data do not support the hypothesis that HbAS and HbAC protect against malaria by enhancing P. falciparum-specific antibody responses. It remains possible that HbAS and HbAC protect against malaria by enhancing antibody responses to antigens not studied here or through other immune mechanisms.

Citing Articles

Children with hemoglobin C or S trait have low serologic responses to a subset of malaria variant surface antigens.

Bailey R, Lawton J, Niangaly A, Stucke E, Bailey J, Berry A J Infect. 2024; 89(4):106257.

PMID: 39216830 PMC: 11546587. DOI: 10.1016/j.jinf.2024.106257.


Profiling the Plasmodium falciparum Erythrocyte Membrane Protein 1-Specific Immununoglobulin G Response Among Ghanaian Children With Hemoglobin S and C.

Oleinikov A, Seidu Z, Oleinikov I, Tetteh M, Lamptey H, Ofori M J Infect Dis. 2023; 229(1):203-213.

PMID: 37804095 PMC: 10786258. DOI: 10.1093/infdis/jiad438.


PfEMP1-Specific Immunoglobulin G Reactivity Among Beninese Pregnant Women With Sickle Cell Trait.

Lopez-Perez M, Viwami F, Seidu Z, Jensen A, Doritchamou J, Ndam N Open Forum Infect Dis. 2021; 8(12):ofab527.

PMID: 34909438 PMC: 8664683. DOI: 10.1093/ofid/ofab527.


Memory CD8 T cell compartment associated with delayed onset of infection and better parasite control in sickle-cell trait children.

Loiseau C, Traore B, Ongoiba A, Kayentao K, Doumbo S, Doumtabe D Clin Transl Immunology. 2021; 10(3):e1265.

PMID: 33763229 PMC: 7979311. DOI: 10.1002/cti2.1265.


A novel population of memory-activated natural killer cells associated with low parasitaemia in -exposed sickle-cell trait children.

Loiseau C, Doumbo O, Traore B, Brady J, Proietti C, De Sousa K Clin Transl Immunology. 2020; 9(4):e1125.

PMID: 32257211 PMC: 7114700. DOI: 10.1002/cti2.1125.


References
1.
Dicko A, Klion A, Thera M, Sagara I, Yalcouye D, Niambele M . The etiology of severe anemia in a village and a periurban area in Mali. Blood. 2004; 104(4):1198-200. DOI: 10.1182/blood-2003-11-3884. View

2.
Aidoo M, Terlouw D, Kolczak M, McElroy P, Kuile F, Kariuki S . Protective effects of the sickle cell gene against malaria morbidity and mortality. Lancet. 2002; 359(9314):1311-2. DOI: 10.1016/S0140-6736(02)08273-9. View

3.
Friedman M . Erythrocytic mechanism of sickle cell resistance to malaria. Proc Natl Acad Sci U S A. 1978; 75(4):1994-7. PMC: 392469. DOI: 10.1073/pnas.75.4.1994. View

4.
Luty A, Ulbert S, Lell B, Lehman L, Schmidt-Ott R, Luckner D . Antibody responses to Plasmodium falciparum: evolution according to the severity of a prior clinical episode and association with subsequent reinfection. Am J Trop Med Hyg. 2001; 62(5):566-72. DOI: 10.4269/ajtmh.2000.62.566. View

5.
Mackintosh C, Christodoulou Z, Mwangi T, Kortok M, Pinches R, Williams T . Acquisition of naturally occurring antibody responses to recombinant protein domains of Plasmodium falciparum erythrocyte membrane protein 1. Malar J. 2008; 7:155. PMC: 2533674. DOI: 10.1186/1475-2875-7-155. View