Int J Med Sci 2024; 21(3):483-491. doi:10.7150/ijms.89901 This issue Cite

Research Paper

Transcription factor 21 rs12190287 polymorphism is related to stable angina and ST elevation myocardial infarction in a Chinese Population

Teng-Hung Yu1,2, Thung-Lip Lee1,3, I-Ting Tsai2,4, Chin-Feng Hsuan1,2,5, Chao-Ping Wang1,3, Yung-Chuan Lu3,6, Wei-Hua Tang7,8, Ching-Ting Wei9,10, Fu-Mei Chung1, Yau-Jiunn Lee11, Cheng-Ching Wu1,2,12, Corresponding address

1. Division of Cardiology, Department of Internal Medicine, E-Da Hospital, I-Shou University, Kaohsiung 82445 Taiwan.
2. School of Medicine, College of Medicine, I-Shou University, Kaohsiung, 82445 Taiwan.
3. School of Medicine for International Students, College of Medicine, I-Shou University, Kaohsiung, 82445 Taiwan.
4. Department of Emergency, E-Da Hospital, I-Shou University, Kaohsiung 82445 Taiwan.
5. Division of Cardiology, Department of Internal Medicine, E-Da Dachang Hospital, I-Shou University, Kaohsiung 807066, Taiwan.
6. Division of Endocrinology and Metabolism, Department of Internal Medicine, E-Da Hospital, I-Shou University, Kaohsiung 82445 Taiwan.
7. Division of Cardiology, Department of Internal Medicine, Taipei Veterans General Hospital, Yuli Branch, Hualien 98142 Taiwan.
8. Faculty of Medicine, School of Medicine, National Yang Ming Chiao Tung University, Taipei 112304 Taiwan.
9. Division of General Surgery, Department of Surgery, E-Da Hospital, I-Shou University, Kaohsiung 82445 Taiwan.
10. The School of Chinese Medicine for Post Baccalaureate, College of Medicine, I-Shou University, Kaohsiung 82445 Taiwan.
11. Lee's Endocrinologic Clinic, Pingtung 90000 Taiwan.
12. Division of Cardiology, Department of Internal Medicine, E-Da Cancer Hospital, I-Shou University, Kaohsiung 82445 Taiwan.

Citation:
Yu TH, Lee TL, Tsai IT, Hsuan CF, Wang CP, Lu YC, Tang WH, Wei CT, Chung FM, Lee YJ, Wu CC. Transcription factor 21 rs12190287 polymorphism is related to stable angina and ST elevation myocardial infarction in a Chinese Population. Int J Med Sci 2024; 21(3):483-491. doi:10.7150/ijms.89901. https://www.medsci.org/v21p0483.htm
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Abstract

Graphic abstract

Background: Transcription factor 21 (TCF21, epicardin, capsuling, pod-1) is expressed in the epicardium and is involved in the regulation of cell fate and differentiation via epithelial-mesenchymal transformation during development of the heart. In addition, TCF21 can suppress the differentiation of epicardial cells into vascular smooth muscle cells and promote cardiac fibroblast development. This study aimed to explore whether TCF21 gene (12190287G/C) variants affect coronary artery disease risk.

Methods: We enrolled 381 patients who had stable angina, 138 with ST elevation myocardial infarction (STEMI), and 276 healthy subjects. Genotyping of rs12190287 of the TCF21 gene was performed.

Results: Higher frequencies of the CC genotype were found in the patients with stable angina/STEMI than in the healthy controls. After adjusting for diabetes mellitus, hypertension, age, sex, smoking, body mass index and hyperlipidemia, the patients with the CC genotype of the TCF21 gene were associated with 2.49- and 9.19-fold increased risks of stable angina and STEMI, respectively, compared to the patients with the GG genotype. Furthermore, TCF21 CC genotypes showed positive correlations with both stable angina and STEMI, whereas TCF21 GG genotypes exhibited a negative correlation with STEMI. Moreover, the stable angina and STEMI patients with the CC genotype had significantly elevated high-sensitivity C-reactive protein levels than those with the GG genotype. In addition, significant associations were found between type 2 diabetes mellitus, hypertension, and hyperlipidemia with TCF21 gene polymorphisms (p for trend < 0.05).

Conclusion: TCF21 gene polymorphisms may increase susceptibility to stable angina and STEMI.

Keywords: transcription factor 21, polymorphism, stable angina, ST elevation myocardial infarction

Introduction

Coronary artery disease (CAD) is still a leading cause of death in industrialized countries even though advances in its prevention and treatment have been made. In the United States, over 18.2 million people have CAD [1,2]; in Europe, CAD results in over 3.9 million deaths [3]. In Taiwan, more than 17,000 people die of CAD each year [4]. Many risk factors contribute to the pathogenesis of CAD, including both modifiable (physical inactivity, diabetes, smoking, hypertension, stress, hypercholesterolemia, and obesity) and non-modifiable (gender, age, race, family history of CAD, and genotype) risk factors [5-10]. Behavioral as well as metabolic and environmental risks are leading cause of CAD development [11]. Many studies have demonstrated the role of genetic polymorphisms in CAD development, suggesting that a combination of genetic and environmental factors may increase susceptibility to CAD [10,12,13].

Previous genome-wide association studies have reported associations between common variants with the risks of myocardial infarction and CAD [14]. Transcription factor 21 (TCF21), a basic helix-loop-helix transcription factor family member, has been demonstrated to play key roles in cell fate and differentiation [15]. TCF21 lineage- traced cells were shown to transform into periostin-expressing myofibroblasts in a mice model of myocardial infarction, a process essential to promote adaptive fibrosis and facilitate cardiac healing [16]. On the other hand, a lack of cardiac fibroblast production and cardiac repair have been demonstrated in TCF21-deficient mice [17]. Furthermore, in a cardiac fibroblast zebrafish model, TCF21 was shown to both contribute to a fibrotic response after injury and also cardiomyocyte proliferation during regeneration [18]. In humans of various ethnicity, a higher risk of CAD has been associated with rs12190287, a single nucleotide polymorphism (SNP) located in the 3′untranslated region of TCF21 [19-21]. Hamed et al. indicated that the CC genotype and C allele of TCF21 (12190287G/C) polymorphisms may be genetic risk factors for CAD [22]. Furthermore, in a Chinese population, the TCF21 rs12190287 polymorphism was also shown to confer susceptibility to ventricular septal defects [23]. Moreover, a Japanese study reported that TCF21 rs12190287 (G→C) may be a susceptibility locus for hypertension [24]. Another study found significant associations between the GG genotype and G allele of rs12190287 in TCF21 and an increased TCF21 concentration with the onset and recurrence of paroxysmal atrial fibrillation post ablation [25]. Considering these findings, study aimed to further explore whether TCF21 genetic polymorphisms affected susceptibility to stable angina and ST elevation myocardial infarction (STEMI) and their relationships with clinical and biochemical characteristics.

Methods

Participants

Patients with stable angina (n=381) and STEMI (n = 138) were enrolled from the Emergency Room and Cardiovascular Ward at Kaohsiung E-Da Hospital, Taiwan, from January to December 2022. STEMI was identified according to prolonged chest pain (more than 30 minutes), typical increases in circulating biochemical markers (troponin-I and creatine kinase-MB (CK-MB)/creatine-phospho-kinase) with symptoms of ischemia persisting for ≥ 30 min, and ST-segment elevation ≥ 2.0 mm in two or more contiguous electrocardiogram leads. Stable angina was identified as patients with rest or effort-related chest pain which had not progressed in the last 6 months. All of the patients with STEMI underwent primary percutaneous coronary interventions within 12 hours of symptom onset. Patients with renal dysfunction, hepatic dysfunction, heart failure and valvular heart disease were excluded. Healthy controls (n = 276) were unrelated patients who entered the health examination program of the hospital. None the controls had detectable cardiovascular risk factors or were not taking any medication. The Human Research Ethics Committee of E-Da Hospital gave approval for the study, and all of the enrolled patients signed informed consent forms.

Data collection

All of the enrolled participants lived in southern Taiwan and were of Han Chinese origin. Data on smoking, drinking, and personal disease history were obtained using standardized questionnaires. Smoking and alcohol drinking status were classified as never, former (stopped for at least 1 year), or current. We analyzed former and current drinkers as one group [26]. Body mass index (BMI) and waist (between the lowest rib and top of the hip) and hip (at the widest part) circumferences were measured in all of the patients, and the average of two measurements was used to calculate the waist-to-hip ratio. A digital sphygmomanometer (HEM-907, Omron, Japan) was used to measure blood pressure (BP) after a 5-min rest. The modified Simpson's method was used to compute left ventricular ejection fraction with apical 4-chamber views [27]. The ATP III criteria were used to diagnose hyperlipidemia as the presence of one of the following: (1) total cholesterol ≥ 200 mg/dL, (2) low-density lipoprotein-cholesterol (LDL-C) ≥ 130 mg/dL, (3) triglyceride level ≥ 150 mg/dL, (4) high-density lipoprotein-cholesterol (HDL-C) < 35/39 mg/dL (men/women), and (5) prescriptions for lipid disorder medications [28]. Patients were defined as being hypertensive if they had prescriptions for anti-hypertension medications, systolic BP (SBP) ≥ 140 mmHg, or diastolic BP (DBP) ≥ 90 mmHg. Patients were defined as having diabetes mellitus if they had prescriptions for anti-diabetes medications or a fasting glucose level > 126 mg/dl [29].

Laboratory measurements

Levels of total cholesterol, LDL-C, complete blood cell count, serum triglycerides, HDL-C, albumin, blood urine nitrogen (BUN), uric acid, and glucose were measured from fasting blood samples [30]. The Jaffe method was used to calculate serum creatinine. Hemoglobin A1c was measured using an automated analyzer (HLC-723G8, Tosoh Corp., Tokyo, Japan). CK-MB and troponin I serum levels were measured using chemiluminescent microparticle immunoassays. Total leukocyte count and the lymphocyte, neutrophil and monocytes proportions were measured using an automated cell counter (XE-2100 Hematology Alpha Transportation System; Sysmex, Kobe, Japan). Absolute leukocyte subtype counts were calculated as the product of its proportion and total leukocyte count. The CKD-EPI formula was utilized to determine estimated glomerular filtration rate (eGFR) [31]. An immunochemistry system (Beckman Coulter IMMAGE) was used to evaluate plasma levels of high-sensitivity C-reactive protein (hs-CRP). The detection limit was 0.2 mg/L, and all measurements were made twice.

Determining the TCF21 genotype (rs12190287)

A QIAamp DNA Blood Mini kit (Qiagen, Valencia, CA) was used to extract genomic DNA from whole blood samples following the manufacturer's protocol. DNA was reconstituted in TE buffer [1 mM EDTA, 10 mM Tris (pH 7.8)], quantified using OD260 measurements, and stored at -20°C until use as a PCR template. Genotyping of rs12190287 of the TCF21 gene was performed by TagMan® SNP Genotyping Assay (Thermo Fisher Scientific) using an Applied Biosystems PRISM7900 Sequence Detection System. In brief, 5 ng of genomic DNA was amplified in a reaction volume of 10 μl containing 0.25 ml of 40× Predesigned TaqMan SNP Genotyping assay (FAM dye labeled MGB probe + VIC® dye-labeled MGB probe + 2 unlabeled primers), 5 ml of 2× TaqMan® GTXpress™ Master Mix. The cycling conditions were: initial denaturation for 2 minutes at 95°C; 40 cycles at 95°C for 15 seconds, and 60°C for 40 seconds.

Statistical analysis

Data normality was assessed using the Kolmogorov-Smirnov test. Normally distributed continuous data are shown as means (SD). Non-normally distributed data are shown as median (interquartile range). Plasma triglyceride, BUN, CK-MB, troponin I, and hs-CRP values were logarithmically transformed before the analysis due to skewed distribution. The unpaired Student's t-test and chi-square test were used to compare means and proportions between the control, STEMI, and stable angina groups when appropriate. A Pearson correlation heat map was employed to investigate the relationship between TCF21 genotypes and the occurrence of stable angina and STEMI among patients. Associations of genotype frequencies with the risk of stable angina and STEMI were assessed using logistic regression analysis after controlling for age, sex, smoking, BMI, hypertension, hyperlipidemia, and diabetes mellitus, and reported as odds ratios (ORs) with 95% confidence intervals (CIs). Continuous variables among the three genotypes of TCF21 were compared with one-way analysis of variance. Prevalence rates of type 2 diabetes mellitus (T2DM), hypertension, and hyperlipidemia status and trends in the three genotypes of TCF21 groups were analyzed using the chi-square test and Cochran-Armitage trend test respectably. JMP version 7.0 for Windows (SAS Institute, Cary, NC) was used for the statistical analysis. A p value <0.05 was considered to be statistically significant.

Results

Demographic characteristics of the control, stable angina and STEMI groups

The patients with STEMI were significantly older, predominantly male, and had higher rates of hypertension, T2DM, hyperlipidemia, current smoker, drinking, BMI, SBP than the control group. In addition, the patients with stable angina were significantly older, predominantly male, and had higher rates of hypertension, T2DM, hyperlipidemia, current smoker, drinking, BMI, and SBP than the control group. Furthermore, the STEMI group had significantly higher rates of single-vessel disease, stenosis in right coronary and left anterior descending arteries, and higher Gensini score than the stable angina group (Table 1).

Biochemical characteristics in controls and stable angina or STEMI patients

Patients with STEMI had a significantly higher levels of fasting sugar, HbA1C, total cholesterol, triglyceride, LDL-C, uric acid, BUN, creatinine, total WBC/neutrophil/ monocyte/lymphocyte counts, and hs-CRP, and lower HDL-C, eGFR, and albumin compared to the control group. In addition, the stable angina group had significantly higher fasting sugar, HbA1C, total cholesterol, triglyceride, LDL-C, uric acid, BUN, creatinine, total WBC/neutrophil/monocyte/lymphocyte counts, and hs-CRP, and lower HDL-C, eGFR, and hemoglobin than the control group. Furthermore, the STEMI group had significantly higher fasting sugar, hemoglobin, total WBC/neutrophil/monocyte/lymphocyte counts, CK-MB, and troponin I, and lower HDL-C, eGFR, and albumin than the stable angina group (Table 2).

Association between TCF21 genotypes and stable angina and STEMI

Distributions of the TCF21 gene G/C genotype in the stable angina, STEMI and control groups are shown in Table 3, which shows that they were in Hardy-Weinberg equilibrium. The TCF21 genotype distributions were significantly different between the stable angina and STEMI groups when compared to the control group (p < 0.01). Higher CC genotype distributions were found in the stable angina and STEMI groups, suggesting an association between TCF21 gene polymorphisms with stable angina and STEMI (CC vs. GG: crude OR = 2.00, 95% CI = 1.26-3.21, p = 0.004 for stable angina; OR = 4.25, 95% CI = 2.14-9.00, p < 0.0001 for STEMI). These associations between TCF21 CC genotypes and stable angina/STEMI persisted after logistic regression adjustments for age, sex, smoking, BMI, hypertension, hyperlipidemia, and diabetes mellitus (CC vs. GG: adjusted OR = 2.49, 95% CI = 1.24-5.07, p = 0.010 for stable angina; adjusted OR = 9.19, 95% CI = 4.36-16.33, p < 0.0001 for STEMI).

 Table 1 

Distributions of demographic characteristics in 276 controls and 519 stable angina or STEMI patients

ParametersControlsSTEMIStable anginap-valueap-valuebp-valuec
N276138381
Age (years)58.4 ± 11.265.9 ± 12.963.9 ± 10.9< 0.0001< 0.00010.079
Sex (male/female)72/204114/24297/84< 0.0001< 0.00010.248
Hypertension (n, %)94 (34.1)84 (60.9)265 (69.6)< 0.0001< 0.00010.063
Type 2 diabetes mellitus (n, %)49 (17.8)52 (37.7)148 (38.9)< 0.0001< 0.00010.810
Hyperlipidemia (n, %)42 (15.2)101 (73.2)249 (65.4)< 0.0001< 0.00010.092
Current smoker (n, %)62 (22.5)56 (40.6)157 (41.2)0.0001< 0.00010.872
Drinking (n, %)50 (18.1)39 (28.3)124 (32.6)0.016< 0.00010.308
Body mass index (kg/m2)23.7 ± 4.925.8 ± 3.726.3 ± 3.7< 0.0001< 0.00010.176
Systolic blood pressure (mmHg)122 ± 15134 ± 23132 ± 20< 0.0001< 0.00010.247
Diastolic blood pressure (mmHg)75 ± 1276 ± 1677 ± 130.5340.1690.728
LVMI-134.7 ± 49.3123.4 ± 40.5--0.059
LVEF (%)-59.5 ± 13.460.1 ± 13.3--0.736
Number of diseased vessels (%)
Single-vessel disease-48 (34.8)98 (25.7)--0.044
Two-vessel disease-45 (32.6)101 (26.5)--0.178
Three-vessel disease-41 (29.7)110 (28.9)--0.866
Location of stenosis--
Left anterior descending-106 (76.8)251 (65.9)--0.018
Left circumflex-64 (46.4)171 (44.9)--0.781
Right coronary artery-86 (62.3)189 (49.6)--0.011
Gensini score-40.0 (14.5-76.5)22.5 (8.0-52.0)--0.012

Data are expressed as mean ± SD, number (percentage), or median (interquartile range). STEMI, ST elevation myocardial infarction; LVMI, left ventricular mass index; LVEF, left ventricular ejection fraction; a: Data were compared between ST elevation myocardial infarction patients and controls. b: Data were compared between stable angina patients and controls. c: Data were compared between ST elevation myocardial infarction patients and stable angina patients.

 Table 2 

Biochemical characteristics in 276 controls and 519 stable angina or ST elevation myocardial infarction patients

ParametersControlsSTEMIStable anginap-valueap-valuebp-valuec
No.276138381
Fasting sugar (mg/dL)96.1 ± 31.5168.3 ± 80.1136.6 ± 69.9< 0.0001< 0.0001<0.0001
HbA1C (%)5.7 ± 0.77.0 ± 1.96.9 ± 1.7< 0.0001< 0.00010.789
Total cholesterol (mg/dL)157.2 ± 32.3181.5 ± 42.6176.3 ± 45.3< 0.0001< 0.00010.241
Triglyceride (mg/dL)84.0 (63.0 - 116.5)127.0 (86.8 - 197.5)118.0 (90.0 - 179.0)< 0.0001< 0.00010.329
HDL-cholesterol (mg/dL)54.7 ± 15.337.0 ± 12.040.8 ± 11.0< 0.0001< 0.00010.001
LDL-cholesterol (mg/dL)90.9 ± 27.1110.8 ± 36.0104.0 ± 38.4< 0.0001< 0.00010.070
Uric acid (mg/dL)4.7 ± 1.96.8 ± 2.06.5 ± 2.2< 0.0001< 0.00010.348
BUN (mg/dl)12.0 (9.0 - 15.0)18.1 (15.6 - 23.7)17.2 (13.5 - 22.1)< 0.0001< 0.00010.092
Creatinine (mg/dl)0.8 ± 0.51.5 ± 0.91.4 ± 1.1< 0.0001< 0.00010.534
eGFR (ml/min/1.73m2)124.2 ± 44.360.7 ± 24.266.4 ± 25.9< 0.0001< 0.00010.024
Hemoglobin (g/dl)14.3 ± 1.114.0 ± 2.413.6 ± 2.00.8240.0410.046
Albumin (g/L)4.2 ± 0.43.8 ± 0.44.0 ± 0.4< 0.00010.784< 0.0001
Total WBC count (109/L)6.367 ± 2.75410.957 ± 4.3017.632 ± 2.642< 0.0001< 0.0001< 0.0001
Neutrophil count (109/L)4057 ± 26187762 ± 38414802 ± 2169< 0.00010.0001< 0.0001
Monocyte count (109/L)380 ± 156632 ± 371448 ± 202< 0.0001< 0.0001< 0.0001
Lymphocyte count (109/L)1761 ± 7162367 ± 13402118 ± 1004< 0.0001< 0.00010.028
Creatine kinase-MB (ng/mL)-7.1 (2.4 - 73.9)2.4 (1.1 - 7.1)--< 0.0001
Troponin I (ng/mL)-1.1 (0.1 - 6.5)0.1 (0.0 - 0.8)--< 0.0001
hs-CRP (mg/L)0.2 (0.1 - 0.5)3.7 (0.3 - 8.3)2.2 (0.8 - 6.2)< 0.0001<0.00010.325

Data are expressed as mean ± SD, or median (interquartile range). STEMI, ST elevation myocardial infarction; HDL, high-density lipoprotein; LDL, low-density lipoprotein; BUN, blood urine nitrogen; eGFR, estimated glomerular filtration rate; WBC, white blood cell; hs-CRP, high sensitivity C-reactive protein. a: Data were compared between ST elevation myocardial infarction patients and controls. b: Data were compared between stable angina patients and controls. c: Data were compared between ST elevation myocardial infarction patients and stable angina patients.

 Table 3 

Adjusted odds ratio and 95% confidence interval of stable angina and ST elevation myocardial infarction with TCF21 genotypic frequencies

ParameterControls (n=276)Stable angina (n=381)Crude OR95% CIAORa95% CIp-value
TCF21 genotypes
GG genotypeb56 (20.3)58 (15.2)1.00-1.00--
GC genotype153 (55.4)184 (48.3)1.160.76 - 1.781.610.87 - 3.020.133
CC genotype67 (24.3)139 (36.5)2.001.26 - 3.212.491.24 - 5.070.010
GG/GC genotypeb209 (75.7)242 (63.5)1.00-1.00--
CC genotype67 (24.3)139 (36.5)1.791.27 - 2.541.761.04 - 3.020.036
Controls (n = 276)STEMI (n = 138)Crude OR95% CIAORa95% CIp-value
TCF21 genotypes
GG genotypeb56 (20.3)12 (8.7)1.00-1.00--
GC genotype153 (55.4)65 (47.1)1.981.03 - 4.104.541.43 - 12.390.009
CC genotype67 (24.3)61 (44.2)4.252.14 - 9.009.194.36 - 16.33< 0.0001
GG/GC genotypeb209 (75.7)77 (55.8)1.00-1.00--
CC genotype67 (24.3)61 (44.2)2.471.60 - 3.824.442.05 - 10.090.0001

STEMI, ST elevation myocardial infarction; TCF21, transcription factor 21. AOR = adjusted odds ratio; CI = confidence interval. a: The adjusted ORs with their 95% CI were estimated by employing multiple logistic regression models, after controlling for age, sex, smoking, body mass index, hypertension, hyperlipidemia, and diabetes mellitus. b: as a reference group.

 Figure 1 

A Pearson correlation heat map was generated to explore the relationship between the genotypes of the transcription factor 21 and the occurrence of stable angina (A) and ST elevation myocardial infarction (B) among patients. The red color indicates a positive correlation, whereas the blue and grey colors indicate a negative correlation. **p < 0.01 and ***p< 0.001. STEMI, ST elevation myocardial infarction.

Int J Med Sci Image

Comparing the risk of stable angina and STEMI between the CC vs. GG/GC genotypes showed that the CC genotype was significantly associated with a higher risk (Table 3). Furthermore, using Pearson's correlation analysis, TCF21 CC genotypes showed positive correlations with stable angina (r = 0.130, p = 0.001) and STEMI (r = 0.203, p < 0.0001), while TCF21 GG genotypes exhibited a negative correlation with STEMI (r = -0.148, p = 0.003; Figure 1).

Clinical and biochemical characteristics of the CAD patients by different genotypes of TCF21

Table 4 shows the clinical and biochemical characteristics of the 519 enrolled CAD patients according to TCF21 genotypes. The prevalence rates of GG genotype, GC genotype, and CC genotype were 13.5%, 48.0%, and 38.5%, respectively. The CC genotype group had higher level of hs-CRP than those with GG genotype. No significant differences were found in age, sex, BMI, waist circumference, waist-to-hip ratio, SBP, DBP, fasting glucose, HbA1c, total cholesterol, triglyceride, LDL-C, HDL-C, uric acid, BUN, creatinine, eGFR, hemoglobin, albumin, total WBC count, neutrophil count, monocyte count, and lymphocyte count among the three TCF21 genotypes.

Association between TCF21 genotypes and T2DM, hypertension, and hyperlipidemia status

We then analyzed the frequencies of without and with T2DM, hypertension, and hyperlipidemia status of the all study participates stratified by genotypes of TCF21, and found that T2DM, hypertension, and hyperlipidemia status were significantly associated with genotypes of TCF21 (without T2DM vs. with T2DM, GG/GC/CC = 73.0%/70.7%/ 63.7% vs. 27.0%/29.4%/36.3%, p for trend = 0.034; without hypertension vs. with hypertension, GG/GC/CC = 48.4%/45.5%/38.6% vs. 51.6%/54.5%/61.4%, p for trend = 0.040; without hyperlipidemia vs. with hyperlipidemia, GG/GC/CC = 61.1%/51.5%/ 44.6% vs. 38.9%/48.5%/55.4%, p for trend = 0.002, Figure 2).

 Figure 2 

The frequencies of with or without type 2 diabetes mellitus (T2DM), hypertension, and hyperlipidemia status of the all study participates stratified by genotypes of transcription factor 21 (TCF21). T2DM, hypertension, and hyperlipidemia status were significantly associated with genotypes of TCF21.

Int J Med Sci Image
 Table 4 

Clinical and biochemical parameters of the studied patients with CAD in different genotypes of transcription factor 21

ParametersGGGCCCp-value
No.70249200
Age64.0 ± 11.764.2 ± 11.464.8 ± 11.50.813
Sex (male/female)54/16196/53161/390.810
Body mass index (kg/m2)26.5 ± 3.926.1 ± 3.726.2 ± 3.70.726
Waist circumference (cm)92.6 ± 8.391.9 ± 9.492.3 ± 10.90.862
Waist-to-hip ratio0.94 ± 0.070.94 ± 0.070.94 ± 0.090.922
Systolic blood pressure (mmHg)131 ± 21133 ± 21133 ± 210.874
Diastolic blood pressure (mmHg)77± 1378 ± 1476 ± 140.351
Fasting sugar (mg/dL)152.8 ± 92.1143.9 ± 65.6144.4 ± 77.30.678
HbA1C (%)7.1 ± 2.16.8 ± 1.67.0 ± 1.70.472
Total-cholesterol (mg/dL)178.5 ± 43.1179.5 ± 43.7175.0 ± 46.30.562
Triglyceride (mg/dL)115.0 (85.5 - 178.3)119.5 (89.0 - 179.8)125.5 (93.3 - 190.8)0.742
HDL-cholesterol (mg/dL)39.3 ± 10.339.7 ± 11.040.2 ± 12.20.792
LDL-cholesterol (mg/dL)106.6 ± 34.1107.8 ± 39.6103.0 ± 36.90.412
Uric acid (mg/dL)6.2 ± 1.76.8 ± 2.46.6 ± 2.00.249
BUN (mg/dl)17.6 (14.4 - 25.3)17.8 (13.5 - 22.0)17.7 (14.0 - 23.0)0.082
Creatinine (mg/dl)1.2 (1.0 - 1.4)1.2 (1.1 - 1.4)1.2 (1.1 - 1.4)0.177
eGFR (ml/min/1.73m2)66.9 ± 29.466.1 ± 24.662.8 ± 25.30.320
Hemoglobin (g/dl)13.4 ± 2.213.8 ± 2.013.7 ± 2.20.528
Albumin (g/L)3.9 ± 0.54.0 ± 0.43.9 ± 0.40.270
Total WBC count (109/L)8.341 ± 3.3618.380 ± 3.5208.747 ± 3.5000.490
Neutrophil count (109/L)5218 ± 27975541 ± 31475709 ± 28570.500
Monocyte count (109/L)471 ± 216492 ± 295508 ± 2490.592
Lymphocyte count (109/L)2235 ± 11552114 ± 9762245 ± 12250.431
hs-CRP (mg/L)1.9 (0.7-5.2)3.1 (0.8 - 10.0)3.2 (0.9 - 9.2)0.032

Data are expressed as mean ± SD, or median (interquartile range). HDL, high-density lipoprotein; LDL, low-density lipoprotein; BUN, blood urine nitrogen; eGFR, estimated glomerular filtration rate; WBC, white blood cell; hs-CRP, high sensitivity C-reactive protein.

Discussion

Our results showed significantly higher distributions of the TCF21 CC homozygote genotype in the stable angina and STEMI patients compared to the controls. In addition, independent associations between the TCF21 CC homozygote genotype with stable angina and STEMI were shown in univariate and multivariate logistic regression analyses after adjusting for age, sex, smoking, BMI, hypertension, hyperlipidemia, and diabetes mellitus. Furthermore, TCF21 CC genotypes demonstrated positive correlations with both stable angina and STEMI, while TCF21 GG genotypes exhibited a negative correlation with STEMI. Even though previous epidemiological studies have indicated that environmental factors play key roles in the development of cardiovascular disease [32,33], not all people develop CAD [13,34]. Molecular epidemiological research has shown that both genetic and environmental factors can influence susceptibility to CAD [35,36].

A previous study reported a significant association between the TCF21 gene G/C polymorphism with CAD in an Egypt population [22]. Santos et al. reported that the TCF21 polymorphism was a risk factor for CAD events in a Portuguese population [37]. Our results further suggest an association between the TCF21 CC homozygote genotype in both the occurrence of stable angina and STEMI in a Han Taiwanese cohort. The precise role of TCF21 polymorphisms in stable angina and STEMI has yet to be confirmed, although chronic inflammatory cytokines have been implicated [38-40]. Previous studies have shown that chemokines, including macrophage inflammatory protein-alpha, IFN-γ-inducible protein, monocyte chemoattractant protein-1, and eotaxin, play key roles in the pathogenesis of CAD via chronic inflammation [41].

A variation of TCF21 at 6q23.2 has been associated with CAD in Han Chinese and Caucasian populations [35,42]. A previous study showed that TCF21 modulates and interacts with aryl-hydrocarbon receptor (AHR), a well-known environmental sensor, and that this regulates the expressions of pro-inflammatory genes in coronary artery smooth muscle cells [43]. In addition, the study found that oxidized LDL, a widely recognized contributor to atherosclerosis within plaques, can induce the AHR pathway [43]. Taken together with our findings, TCF21 gene polymorphisms may play important roles with a heritable form of gene-environment interaction in stable angina and STEMI. In addition, Kim et al. also suggested that TCF21 can cooperate with AHR to activate an inflammatory gene expression program that is exacerbated by environmental stimuli, and may contribute to the overall risk of CAD [43]. In the present study, we found that the TCF21 CC genotype group had higher level of hs-CRP than those with TCF21 GG genotype group. Thus, patients with the TCF21 gene CC genotype may, through the increased effect of AHR, on inflammatory gene expression activation, contribute to the increased risk of stable angina and STEMI.

The TCF21 gene has been associated with CAD, promoting the stability of plaques and reducing clinical events by modulating the phenotypic transition from smooth muscle cells to fibromyocytes in atherosclerosis [44]. The present study shows that TCF21 gene G/C polymorphism is significantly associated with stable angina and STEMI both in non-adjusted and adjusted models (Table 3). In agreement with our results, Wang et al. [45], Hamed et al. [22] and Schunkert et al. [35] reported significant associations between TCF21 rs12190287 with CAD. Furthermore, Santos et al. also demonstrated that TCF21 rs12190287 may be a risk factor for major adverse cardiovascular events, and suggested that the TCF21 gene may affect fundamental smooth muscle cell processes in response to vascular stress, thereby facilitating the progression of atherosclerosis [37]. The mechanisms between rs12190287 risk C allele and CAD could be explained two key pathways. First, TCF21 risk alleles (rs12524865-C or rs12190287-C) may increase the expression of TCF21 on activation of platelet-derived growth factor (PDGF) signaling in coronary vascular smooth muscle cells (VSMCs) [46]. PDGF signaling mediated by PDGF receptor beta has been shown to play a major role in epithelial-mesenchymal transition, epicardial fate, VSMC migration, proliferation, and atherosclerosis [47]. This increase in PDGF signaling may then promote aggressive formation of plaques in the thoracic aorta and coronary arteries [48]. Second, the major risk C variants of TCF21 rs12190287 preferentially combine with miRNA-224 due to the altered secondary RNA structure, leading to downregulation of the expression of TCF21 [49]. Furthermore, TGF-β1 and PDGF signaling may be upstream miRNA-224 mediators and influence allele-specific TCF21 rs12190287 expression. More importantly, the rs12190287 C allele may interact with miR-224 leading to a reduction in TCF21 expression through mechanisms linked to miRNA, playing important roles in the risk of stable angina and STEMI.

In the present study, we showed that T2DM, hypertension, and hyperlipidemia status were significantly associated with genotypes of TCF21 are consistent with previous studies [22,24]. Fujimaki et al. showed that after adjusting for age, sex, BMI and smoking status in multivariable logistic regression analysis, TCF21 rs12190287 was significantly correlated with hypertension (OR 1.21, p=0.0014), and that the C allele was a risk factor for hypertension [24]. Furthermore, Hamed et al. reported that patients with CC genotype predominance showed higher levels of triglycerides, LDL-C, and total cholesterol [22]. T2DM, hypertension, and hyperlipidemia were risk factor of atherosclerosis, which contributes to progression of myocardial infarction. Therefore, it is possible that TCF21 CC genotype may be associated with hypertension, hyperlipidemia, and diabetes mellitus, thereby contributing to risk of stable angina and STEMI in the present study. However, further studies are required to ascertain the role of TCF21 polymorphism in diabetes mellitus.

Some limitations of this study need to be considered. The sample size was relatively small. In addition, the cross-sectional design limits our ability to infer a causal relationship between TCF21 gene (12190287G/C) variants and stable angina and STEMI. Long-term follow-up studies are needed to verify the roles of TCF21 gene polymorphisms with regards to the risk of stable angina and STEMI. Furthermore, as the results of the present study were not replicated, validation of the findings is required in other ethnic groups or in other independent subject panels. Further prospective studies are required to verify our results.

Conclusions

The results of the current study indicate that the CC genotype of TCF21 (12190287G/C) polymorphism is associated with stable angina and STEMI. Our findings suggest that TCF21 rs12190287 polymorphisms could be potential genetic markers for the susceptibility to stable angina and STEMI in Chinese populations.

Acknowledgements

The authors would like to thank E-Da Hospital of the Republic of China, Taiwan, for financially supporting this research under contracts EDAHI111001, EDAHI112001, and EDCHP112002.

Competing Interests

The authors have declared that no competing interest exists.

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Author contact

Corresponding address Corresponding author: Dr. Cheng-Ching Wu; E-Da Hospital, I-Shou University, No. 1, Yi-Da Rd., Jiau-Shu Village, Yan-Chao Township, Kaohsiung, 82445, Taiwan; Tel: +886-7-615-1100 ext. 5914 or 5018; E-mail: maxvic24isu.edu.tw.


Received 2023-9-6
Accepted 2023-12-20
Published 2024-1-1


Citation styles

APA
Yu, T.H., Lee, T.L., Tsai, I.T., Hsuan, C.F., Wang, C.P., Lu, Y.C., Tang, W.H., Wei, C.T., Chung, F.M., Lee, Y.J., Wu, C.C. (2024). Transcription factor 21 rs12190287 polymorphism is related to stable angina and ST elevation myocardial infarction in a Chinese Population. International Journal of Medical Sciences, 21(3), 483-491. https://doi.org/10.7150/ijms.89901.

ACS
Yu, T.H.; Lee, T.L.; Tsai, I.T.; Hsuan, C.F.; Wang, C.P.; Lu, Y.C.; Tang, W.H.; Wei, C.T.; Chung, F.M.; Lee, Y.J.; Wu, C.C. Transcription factor 21 rs12190287 polymorphism is related to stable angina and ST elevation myocardial infarction in a Chinese Population. Int. J. Med. Sci. 2024, 21 (3), 483-491. DOI: 10.7150/ijms.89901.

NLM
Yu TH, Lee TL, Tsai IT, Hsuan CF, Wang CP, Lu YC, Tang WH, Wei CT, Chung FM, Lee YJ, Wu CC. Transcription factor 21 rs12190287 polymorphism is related to stable angina and ST elevation myocardial infarction in a Chinese Population. Int J Med Sci 2024; 21(3):483-491. doi:10.7150/ijms.89901. https://www.medsci.org/v21p0483.htm

CSE
Yu TH, Lee TL, Tsai IT, Hsuan CF, Wang CP, Lu YC, Tang WH, Wei CT, Chung FM, Lee YJ, Wu CC. 2024. Transcription factor 21 rs12190287 polymorphism is related to stable angina and ST elevation myocardial infarction in a Chinese Population. Int J Med Sci. 21(3):483-491.

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