Basic Study
Copyright ©The Author(s) 2024.
World J Gastroenterol. Jun 7, 2024; 30(21): 2793-2816
Published online Jun 7, 2024. doi: 10.3748/wjg.v30.i21.2793
Table 1 Genomic DNA removal
Constituent
Dose
Template RNA1.76 μg
4 × gDNA wiper Mix4 μL
RNase-free ddH2O16 μL
Table 2 Preparation of reverse transcriptional response system
Constituent
Dose
5 × HiScript II Select qRT SuperMix II4 μL
Reaction liquid from step 116 μL
Reverse transcriptase1 μL
Table 3 Primer sequence
Gene
Primer
Sequence (5'-3')
PCR product
Homo GAPDHUpstreamTCAAGAAGGTGGTGAAGCAGG115 bp
DownstreamTCAAAGGTGGAGGAGTGGGT
Homo HIF-1α UpstreamGTGGCGAAGATGGTCAAGTC116 bp
DownstreamGGAGTGCCCTTGTTGAGGTGTT
Table 4 Real-time fluorescence quantitative polymerase chain reaction system
Constituent
Dose
cDNA4 μL
Forward Primer (10 μM)0.4 μL
Reverse Primer (10 μM)0.4 μL
SYBR Green Master Mix10 μL
50 × ROX Reference Dye 20.4 μL
Taq Plus DNA Polymerase1 μL
RNase-free ddH2O25 μL
Table 5 Real-time fluorescence quantitative polymerase chain reaction program
Item
Temperature
Time
Cycle-index
Predegeneration95 ℃10 min1
Denaturation95 ℃15 s40
Annealing elongation60 ℃60 s40
Melting curve acquisition95 ℃15 s1
60 ℃60 s1
95 ℃15 s1
Table 6 Preparation of sodium dodecyl sulfate-polyacrylamide gel electrophoresis separation glue
Reagent
Separation glue concentration (%)
8%
10%
12%
15%
18%
20%
H2O4.63 mL4 mL3.3 mL2.3 mL1.3 mL0.63 mL
30% acrylamide (29: 1)2.67 mL3.3 mL4 mL5 mL6 mL6.67 mL
1.5M Tris-HCl (pH 8.8)2.5 mL2.5 mL2.5 mL2.5 mL2.5 mL2.5 mL
10%SDS0.1 mL0.1 mL0.1 mL0.1 mL0.1 mL0.1 mL
Ammonium persulfate0.1 mL0.1 mL0.1 mL0.1 mL0.1 mL0.1 mL
TEMED5 μL5 μL5 μL5 μL5 μL5 μL
Bulk volume10 mL10 mL10 mL10 mL10 mL10 mL
Table 7 Preparation of sodium dodecyl sulfate-polyacrylamide gel electrophoresis concentrated glue
Reagent
Concentration
H2O 2 mL3 mL4 mL6 mL
30% acrylamide (29:1)0.5 mL0.75 mL1 mL1.5 mL
1M TRIS-HCl (pH 6.8)0.5 mL0.75 mL1 mL1.5 mL
10%SDS40 μL60 μL80 μL120 μL
Ammonium persulfate30 μL45 μL60 μL90 μL
TEMED 4 μL6 μL8 μL12 μL
Bulk volume3 mL4.5 mL6 mL9 mL
Table 8 Objective fragment double enzyme digestion process
Constituent
Dose
1 × Tango Buffer2.0 μL
BamH I0.5 μL
EcoR I0.5 μL
Objective fragment 8.0 μL
ddH2O9.0 μL
Total dose20.0 μL
Table 9 Carrier double enzyme digestion process
Constituent
Dose
1 × Tango Buffer2.0 μL
BamH I0.5 μL
EcoR I0.5 μL
Carrier plasmid DNA8.0 μL
ddH2O9.0 μL
Total dose20.0 μL
Table 10 Connection system processing
Constituent
Dose
2 × Sosoo Cloning MIX5.0 μL
pLVX-SV40-IRES-EGFP-Puro2.0 μL
Target fragment2.0 μL
ddH2O1.0 μL
Table 11 Culture solution identified by polymerase chain reaction
Constituent
Dose
EntilinkTM PCR Master Mix25.0 μL
Forward Primer (10 μM)2.0 μL
Reverse Primer (10 μM)2.0 μL
TemplateAppropriate amount
ddH2OUp to 50 μL
Table 12 shRNA annealing reaction system
Constituent
Dose
10 × annealing buffer5 μL
Forward Primer (10 μM)10 μL
Reverse Primer (10 μM)10 μL
ddH2OUp to 50 μL
Table 13 shRNA annealing polymerase chain reaction conditions
Procedure
Temperature
Time
Cycle-index
Predegeneration95 ℃2 min10
Degeneration95 ℃30 s
Anneal60 ℃30 s
Final insulation4 ℃Unlimited
Table 14 Recombinant plasmid linking system
Constituent
Dose
10 × ligase Buffer2.0 μL
pLVshRNA-EGFP(2A)Puro double enzyme digestion vector2.0 μL
Target fragment2.0 μL
Ligase0.5 μL
ddH2O1.0 μL