Qazi REM, Khan I, Haneef K, Malick TS, Naeem N, Ahmad W, Salim A, Mohsin S. Combination of mesenchymal stem cells and three-dimensional collagen scaffold preserves ventricular remodeling in rat myocardial infarction model. World J Stem Cells 2022; 14(8): 633-657 [PMID: 36157910 DOI: 10.4252/wjsc.v14.i8.633]
Corresponding Author of This Article
Asmat Salim, PhD, Professor, Stem Cell Laboratory, Dr. Panjwani Center for Molecular Medicine and Drug Research, ICCBS, University of Karachi, Main University Road, Karachi 75270, Sindh, Pakistan. asmat.salim@iccs.edu
Research Domain of This Article
Cell Biology
Article-Type of This Article
Basic Study
Open-Access Policy of This Article
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World J Stem Cells. Aug 26, 2022; 14(8): 633-657 Published online Aug 26, 2022. doi: 10.4252/wjsc.v14.i8.633
Table 1 Details of cardiac specific gene primers
No.
Gene primers
Primer sequences (5׳-3׳)
Product size
1
GAPDH (F)
GGAAAGCTGTGGCGTGATGG
414
GAPDH (R)
GTAGGCCATGAGGTCCACCA
2
GATA4 (F)
TCTCACTATGGGCACAGCAG
245
GATA4 (R)
CCGAGCAGGAATTTGAAGAG
3
cTnT (F)
TTCGACCTGCAGGAAAAGTT
206
cTnT (R)
GTGCCTGGCAAGACCTAGAG
4
Nkx2.5 (F)
ACCGCCCCTACATTTTATCC
230
Nkx2.5 (R)
GACAGGTACCGCTGTTGCTT
5
Connexin43 (F)
GCTCCACTCTCGCCTATGTC
234
Connexin43 (R)
GAGTTCATGTCCAGCAGCAA
6
cMHC (F)
GCAGGTGGATGATCTGGAGG
116
cMHC (R)
CCATGATGCTCTCCTGGGTC
7
Tbx20 (F)
TGATTCTGGCCCTAGGAAAGTG
100
Tbx20 (R)
TGAGCCTGGGTTCTCCATAAAG
8
ANF (F)
CCTGCGAAGATCAAGCTGC
110
ANF (R)
GCTCGAGCAGATTTGGCTG
9
cTnI (F)
GACCTGCGTGGCAAGTTTA
139
cTnI (R)
CCTCCTTCTTCACCTGCTTG
10
Mef2c (F)
GAGATACCCACAACACACGC
117
Mef2c (R)
GAGTGGAATTCGTTCCGGTG
Table 2 Degrees of freedom (in vitro experiments)
Experiment
Degrees of freedom (F)
MTT assay
F3,8 = 404.312
Gene expression
GATA4
F3,8 = 14.883
cTnT
F3,8 = 15.870
cTnI
F3,8 = 34.024
Nkx2.5
F3,8 = 15.901
cMHC
F3,8 = 85.276
Connexin43
F3,8 = 19.912
ANF
F3,8 = 7.510
Tbx20
F3,8 = 22.877
Mef2C
F3,8 = 7.660
Protein expression
Percent positive cells
GATA4
F3,8 = 26.609
cTnT
F3,8 = 46.829
Nkx2.5
F3,8 = 513.556
Fluorescence intensity
GATA4
F3,8 = 9.696
cTnT
F3,8 = 28.438
Nkx2.5
F3,12 = 59.175
Table 3 Echocardiographic parameters
Groups
Duration
LVIDd (cm)
LVIDs (cm)
EF%
FS%
EDV (mL)
ESV (mL)
SV (mL)
Sham control
2 wk
0.4194
0.1639
93.5889
60.9556
0.0722
0
0.0667
MI + ve
0.5156
0.3722
62.5556
28.3056
0.1389
0.05
0.1056
MI + scaffold
0.5193
0.332
74.4467
37.3067
0.1533
0.04
0.1133
MI + MSC-seeded scaffold
0.4461
0.2611
78.8
40.9389
0.1167
0
0.0667
MI + zebularine treated MSC-seeded scaffold
0.5144
0.2972
80.2111
42.1278
0.1444
0
0.1278
Sham control
4 wk
0.4705
0.195
92.7389
59.2222
0.1222
0
0.1111
MI + ve
0.5780
0.4363
57.3306
24.9194
0.1889
0.0833
0.1222
MI + scaffold
0.47
0.305
73.1056
36.3278
0.1222
0.0333
0.0833
MI + MSC-seeded scaffold
0.5772
0.3455
78.0056
40.5667
0.2111
0.0389
0.1667
MI + zebularine treated MSC-seeded scaffold
0.5338
0.285
82.6056
45.6611
0.1667
0
0.1222
Sham control
6 wk
0.5183
0.2333
90.3333
54.8667
0.15
0
0.1333
MI + ve
0.7066
0.5716
46.85
19.55
0.3444
0.2
0.1611
MI + scaffold
0.5472
0.3622
70.0444
33.8889
0.1667
0.0389
0.1278
MI + MSC-seeded scaffold
0.5533
0.3288
78.05
40.8611
0.1722
0.0333
0.1444
MI + zebularine treated MSC-seeded scaffold
0.5589
0.3156
81.7028
43.7972
0.17778
0.0167
0.1528
Table 4 Degrees of freedom (in vivo experiments)
Experiments
Degrees of freedom (F)
Cardiac function analysis
Parameters
Duration, 2 wk
Duration, 4 wk
Duration, 6 wk
LVIDd
F4,25 = 1.936
F4,25 = 1.299
F4,25 = 3.594
LVIDs
F4,25 = 9.060
F4,25 = 6.944
F4,25 = 14.008
%EF
F4,25 = 26.475
F4,25 = 18.378
F4,25 = 24.089
%FS
F4,25 = 35.299
F4,25 = 24.143
F4,25 = 26.754
EDV
F4,25 = 1.571
F4,25 = 1.059
F4,25 = 3.601
ESV
F4,25 = 3.44
F4,25 = 5.339
F4,25 = 9.580
SV
F4,25 = 2.305
F4,25 = 0.477
F4,25 = 0.262
Immunohistochemistry
α-SMA
F4,10 = 31.551
Cell tracking
Fluorescence intensities of cardiac specific proteins
cMHC
F = 1.631
cTnI
F = 0.882
cTnT
F = 2.665
Fluorescence intensities of DiI labeled cells
cMHC
F = 0.398
cTnI
F = 0.089
cTnT
F = 0.039
Citation: Qazi REM, Khan I, Haneef K, Malick TS, Naeem N, Ahmad W, Salim A, Mohsin S. Combination of mesenchymal stem cells and three-dimensional collagen scaffold preserves ventricular remodeling in rat myocardial infarction model. World J Stem Cells 2022; 14(8): 633-657