Análise proteômica do plasma de pacientes portadores de síndrome mielodisplásica do tipo areb e arsa utilizando lectinas vegetais

Abstract

The myelodysplastic syndromes (Myelodysplastic Syndrome MDS) are diseases that occur when blood-producing cells are damaged bone marrow. This causes damage to one or moretypes of blood cells because its production is defective. MDS is considered a type of cancer and often end up being melodie acute leukemia (AML). The most common types of these syndromes are refractory anemia with ringed sideroblasts (ARSA) and anemia refractory with Excess Blasts (AREB). This study aimed to carry out the proteomic analysis of spinal cord serum of pediatric patients with any of the syndromes for the identification of proteins that are potential candidates for biological markers for evaluation, study and diagnosis of disease. The samples from ten patients with ARSA, tem with AREB and Ten healthy persons (control) were compared. These were subjected to immunodepletion, affinity chromatography with lectin galactose-linker selected by the anomeric recognition profile using chromatography in crosslinked hemicelulases, the selected lectins were subsequently immobilized in Sepharose 4B, the serum bone marrow samples were digested for subsequent analysis by mass spectrometry. The softwareExpressionE, based on protein expression levels, calculated the ratio between the selected groups, so 7 proteins have been identified as possible candidates for the biomarker syndromes. The overexpression of Vitronectin (VTN), fibrinogen (FGA), Pregnancy zone protein (PZP), Kininogen (KNG1) Immunoglobulin lambda chain (IGL), complement factor C4b (CB4) and Hemopexin (HPX) compared with the group control, seems to be an indicator of syndromes and were selected to form a panel of potential candidates for prognostic biomarkers. The only recognition by the frutalin to Clusterin (CLU) and Vitronectin in ARSA and Fibrinogen to AREB, do lectin a very useful tool to differentiate syndromes in proteomics studios.