Functional estimation of mannose binding lectin associated serine protease (MBL-MASPs) in human serum.
Indian J Med Res
; 130(4): 428-32, 2009 Oct.
Article
en En
| MEDLINE
| ID: mdl-19942747
ABSTRACT
BACKGROUND & OBJECTIVE:
Mannose binding lectin (MBL), a C-type or Ca(2+) dependent lectin, plays a major role in lectin pathway of complement activation. MBL deficiency/insufficiency is associated with susceptibility to many infections. It is important to know the association of functional lectin levels with disease condition. Therefore, we carried out this study to develop a simple assay to estimate the functional MBL-associated serine proteases (MBL-MASPs) levels in human serum samples.METHODS:
A novel method was developed based on direct haemolysis of mannan coated human erythrocytes in autologous human serum for functional estimation of MBL and associated serine proteases (MBLMASPs complex). Functional MBL-MASPs serum levels in 75 healthy individuals was estimated. Results were compared with those obtained by ELISA based assay.RESULTS:
Lysis of mannan coated human RBC in autologous serum was highly specific and mediated by MBL-MASPs lectin complement pathway. Concentration of MBL-MASPs in serum of normal healthy individuals (n=75) was found to be 1.579 mug/ml (median= 1.149 mug/ml) by the haemolytic assay which was comparable to the values obtained by ELISA method. INTERPRETATION &CONCLUSION:
Our findings showed that the method developed for the estimation of functional MBL-MASPs levels in human serum is simple, cost-effective and comparable with existing ELISA method.
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Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Ensayo de Inmunoadsorción Enzimática
/
Lectina de Unión a Manosa
/
Serina Proteasas Asociadas a la Proteína de Unión a la Manosa
Tipo de estudio:
Diagnostic_studies
/
Evaluation_studies
/
Risk_factors_studies
Límite:
Humans
Idioma:
En
Revista:
Indian J Med Res
Año:
2009
Tipo del documento:
Article
País de afiliación:
India