Similar articles

Abstract: Objective: To purify mannan-binding lectin (MBL) from human serum and detect its binding ability to several kinds of bacteria common in infectious diseases of children. Methods: MBL was purified from human serum by affinity chromatography on mannan-Sepharose 4B column. Its binding ability to eight species, 97 strains of bacteria was detected by enzyme-linked lectin assay (ELLA). Results: MBL has different binding ability to bacteria and shows strong binding ability to Klebsiella ornithinolytica and Escherichia coli, but shows relatively lower binding ability to Staphylococcus haemolyticus, Enterobacter cloacae and Staphylococcus epidermidis. To different isolates of Klebsiella pneumoniae, Haemophilus influenzae and Staphylococcus aureus, MBL shows quite different binding ability. Conclusions: MBL has different binding ability to different bacteria, and has relatively stronger binding ability to Gram-negative bacteria. Its binding ability to different isolates of certain kinds of bacteria is quite different.

[1] Aittoniemi, J., Baer, M., Vesikari, T., Miettinen, A., 1998. Mannan binding lectin deficiency and concomitant immunodefects. Arch Dis Child, 78:245-248.

[2] Garred, P., Madsen, H.O., Hofmann, B., Svejgaard, A., 1995. Increased frequency of homozygosity of abnormal mannan-binding-protein alleles in patients with suspected immunodeficiency. Lancet, 346:941-943.

[3] Holmskov, U., Malhotra, R., Sim, R.B., Jensenius, J.C., 1994. Collectins: collagenous C-type lectins of the innate immune defense system. Immunol Today, 15:67-74.

[4] Jack, D.L., Klein, N.J., Turner, M.W., 2001. Mannose-binding lectin: targeting the microbial world for complement attack and opsonophagocytosis. Immunol Rev, 180:86-89.

[5] Kilpatrick, D.C., 2002. Mannan-binding lectin: clinical significance and applications. Biochim Biophys Acta, 1572:401-413.

[6] Neth, O., Jack, D.L., Dodds, A.W., Holzel, H., Klein, N.J., Turner, M.W., 2000. Mannose-binding lectin binds to a range of clinically relevant microorganisms and promotes complement deposition. Infect Immun, 68:688-693.

[7] Summerfield, J.A., Sumiya, M., Levin, M., Turner, M.W., 1997. Association of mutations in mannose binding protein gene with childhood infection in consecutive hospital series. B. M. J., 314:1229-1232.

[8] Turner, M.W., Hamvas, R.M.J., 2000. Mannose-binding lectin; structure, function, genetics and disease associations. Rev Immunogenet, 2:305-322.

[9] Valdimarsson, H., Stefansson, M., Vikingsdottir, T., Arason, G.J., Koch, C., Thiel, S., Jensenius, J.C., 1998. Reconstitution of opsonizing activity by infusion of mannan-binding lectin (MBL) to MBL-deficient humans. Scand J Immunol, 48:116-123.