Journal List > Korean Circ J > v.37(6) > 1016228

Bang, Hyun, Kim, and Kwon: Proteomic Analysis of the Serum in Patients with Acute Coronary Syndrome

Abstract

Background and Objectives

Proteomics is a new technology that allows the detection and identification of several proteins at a given time in a sample. There are currently few reports concerned with the proteomic study of serum from patients during acute coronary syndrome. We performed proteomics to analyze the modifications in the serum protein map of patients with acute coronary syndrome (ACS).

Subjects and Methods

We investigated the serum from 12 patients who suffered with acute myocardial infarction (AMI), 12 patients with unstable angina (UA) and 13 age- and sex-matched patients as the control group. Two-dimensional electrophoresis, Coumassie staining and image analysis were performed. Mass spectrometry was performed to identify the selected spots.

Results

For the two-dimensional electrophoresis with using a pH range of 3 to 10, two different areas within the serum protein map were observed, and this showed differences between the groups. In area 1, three fibrinogen gamma chain isoforms were identified. All of them were increased in the serum from the AMI and UA patients when compared with the control group. In area 2, four fibrinogen beta chain isoforms were identified. Three isoforms of them were increased in the serum from the AMI and UA patients.

Conclusion

Three fibrinogen gamma chain isoforms were identified and they were increased in the serum from ACS patients. Four fibrinogen beta chain isoforms were identified and three isoforms of them were increased in the serum from ACS patients.

Figures and Tables

Fig. 1
Two-dimensional polyacrylamide gel electrophoresis of plasma in patients with acute coronary syndrome and control. There was no difference between the groups from computer-based image analysis. AMI: acute myocardial infarction, UA: unstable angina, CON: control, 1: albumin, 2: alpha-1-antitrypsin, 3: apolipoprotein A-I, Area 1: fibrinogen gamma, Area 2: fibrinogen beta.
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Fig. 2
Patterns of fibrinogen gamma chain isoforms of plasma in patients with acute coronary syndrome and control. AMI: acute myocardial infarction, UA: unstable angina, CON: control, 1: isoform 1, 2: isoform 2, 3: isoform 3.
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Fig. 3
Patterns of fibrinogen beta chain isoforms of plasma in patients with acute coronary syndrome and control. AMI: acute myocardial infarction, UA: unstable angina, CON: control, 1: isoform 1, 2: isoform 2, 3: isoform 3, 4: isoform 4.
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Table 1
Baseline characteristics
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Values are means±SD and No. of cases with percentage in parenthesis. ACS: acute coronary syndrome, AMI: acute myocardial infarction, UA: unstable angina, CON: control, M: male, F: female, DM: diabetes mellitus, TC: total cholesterol, TG: triglyceride, HDL: high density lipoprotein, LDL: low density lipoprotein

Table 2
Identification of the analyzed proteins
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MS: mass spectrometer, Mr: nominal mass, pI: isoelectric point

Table 3
Fibriongen gamma chain isoforms in patients with acute coronary syndrome and control
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Experimental mass (kDa/pI) of isoform 1 was 24.3/6.5, Experimental mass of isoform 2,3 were 50.0/5.7, Values are arbitrary units. Arbitrary units are %vol of individual spot. ACS: acute coronary syndrome, AMI: acute myocardial infarction, UA: unstable angina, CON: control, pI: isoelectric point

Table 4
Fibrinogen beta chain isoforms in patients with acute coronary syndrome and control
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Experimental mass (kDa/pI) of isoform 1-4 were 51.3/8.0, Values are arbitrary units. Arbitrary units are %vol of individual spot. ACS: acute coronary syndrome, AMI: acute myocardial infarction, UA: unstable angina, CON: control, pI: isoelectric point

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