Influence of the presence of mannose-binding lectin polymorphisms on the occurrence of leishmaniasis: a systematic review and meta-analysis.

Autor:	Vital WS; Pontifícia Universidade Católica do Paraná, Curitiba, PR, Brazil. Electronic address: wonei.vital@pucpr.edu.br., Santos FJA; Fundação de Medicina Tropical Dr. Heitor Vieira Dourado, Manaus, AM, Brazil., Gonçalves MLF; Universidade Estácio de Sá, Manaus, AM, Brazil., Wyrepkowski CDC; Instituto Nacional de Pesquisas da Amazônia, Manaus, AM, Brazil., Ramasawmy R; Fundação de Medicina Tropical Dr. Heitor Vieira Dourado, Manaus, AM, Brazil., Furtado SDC; Department of Morphology, Universidade Federal do Amazonas, Manaus, AM, Brazil.
Jazyk:	angličtina
Zdroj:	Anais brasileiros de dermatologia [An Bras Dermatol] 2022 May-Jun; Vol. 97 (3), pp. 298-306. Date of Electronic Publication: 2022 Mar 21.
DOI:	10.1016/j.abd.2021.08.004
Abstrakt:	Background: Leishmaniasis is caused by an intracellular protozoan of the Leishmania genus. Mannose-binding lectin (MBL) is a serum complement protein and recognizes lipoprotein antigens in protozoa and the bacterial plasma membrane. Nucleotide variants in the promoter region and exon 1 of the MBL gene can influence its expression or change its molecular structure. Objective: To evaluate, through a systematic review, case-control studies of the genetic association of variants in the MBL2 gene and the risk of developing leishmaniasis. Methods: This review carried out a search in PubMed, Science Direct, Cochrane Library, Scopus and Lilacs databases for case-control publications with six polymorphisms in the mannose-binding Lectin gene. The following strategy was used: P = Patients at risk of leishmaniasis; I = Presence of polymorphisms; C = Absence of polymorphisms; O = Occurrence of leishmaniasis. Four case/control studies consisting of 791 patients with leishmaniasis and 967 healthy subjects (Control) are included in this meta-analysis. The association of variants in the mannose-binding Lectin gene and leishmaniasis under the allelic genetic model, -550 (Hvs. L), -221 (X vs. Y), +4 (Q vs. P), CD52 (A vs. D), CD54 (A vs. B), CD57 (A vs. C) and A/O genotype (A vs. O) was evaluated. International Prospective Register of Systematic Reviews (PROSPERO): CRD42020201755. Results: The meta-analysis results for any allelic genetic model showed no significant association for the variants within the promoter, the untranslated region, and exon 1, as well as for the wild-type A allele and mutant allele O with leishmaniasis. Study Limitations: Caution should be exercised when interpreting these results, as they are based on a few studies, which show divergent results when analyzed separately. Conclusions: This meta-analysis showed a non-significant association between the rs11003125, rs7096206, rs7095891, rs5030737, rs1800450, and rs1800451 polymorphisms of the Mannose-binding Lectin gene and leishmaniasis in any allelic and heterogeneous evaluation. (Copyright © 2022. Published by Elsevier España, S.L.U.)
Databáze:	MEDLINE
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