Team:NUDT CHINA/Experiments

Experiments

To create, to dream

Material

1. Complete Cell Culture media(400ul/well):Hyclone™ High Glucose Dulbecco's Modified Eagle Medium( DMEM ) + 10% PAN™ Fetal Bovine Serum(FBS) + 1% Hyclone™ 100X Penicillin-Streptomycin Solution(P/S).

2. Glucose-free Cell Culture Media:Gibco™ glucose free Dulbecco's Modified Eagle Medium( DMEM ) +10% PAN™ Fetal Bovine Serum(FBS)+1%Hyclone 100X Penicillin-Streptomycin Solution(P/S).

3. Glucose Stork Solution:1.25mol/L D-Glucose stork solution made of MilliQ™ Deionized Water and Sangon™ Glucose.

4. (Beyotime)Dual Luciferase Reporter Gene Assay Kit

5. Invitrogen LipofectamineTM 3000 Reagent

Method

Figure 1. The simple chart of the experimental step

1. 2 hours before transfection, starve cells using Dulbecco’s Modified Eagle Medium( DMEM ) be cultured in 24-well plate. Before this, it had has 90% HepG2;

2. Dilute 0.75μL lipofectamine3000TM Reagent in 24.25 μL DMEM pre well;

3. Dilute 600 ng DNA and 1ul of P3000 in DMEM and make a total volume of 25 ul per well;

4. Add diluted DNA to diluted LipofectamineTM 3000 Reagent (1:1 ratio);

5. Incubate for 10-15 minutes at room temperature;

6. Change cell culture into complete cell culture medium, add DNA-lipid complex to a well of the 24-well plate;

7. Incubate cells for 12 h at 37°C, 5% CO2, change cell medium into glucose-free complete culture medium.

8. Incubate cells for 6 h at 37°C, 5% CO2, add glucose stock solution and give glucose stimulation.

9. Incubate cells for 6/20 h at 37°C, 5% CO2, collect data by Dual Luciferase Reporter Gene Assay Kit.

Material

1. Complete Cell Culture media(400ul/well): Hyclone™ High Glucose Dulbecco's Modified Eagle Medium( DMEM ) + 10% PAN™ Fetal Bovine Serum(FBS) + 1% Hyclone™ 100X Penicillin-Streptomycin Solution(P/S).

2. Glucose-free Cell Culture Media: Gibco™ glucose free Dulbecco's Modified Eagle Medium( DMEM ) +10% PAN™ Fetal Bovine Serum(FBS)+1%Hyclone 100X Penicillin-Streptomycin Solution(P/S).

3. Glucose Stork Solution: 1.25mol/L D-Glucose stork solution made of MilliQ™ Deionized Water and Sangon™ Glucose.

4. (Beyotime)Luciferase Reporter Gene Assay Kit.

5. Invitrogen LipofectamineTM 3000 Reagent

Method

Figure 2. The simple chart of the experimental step

1. 2 hours before transfection, starve cells using Dulbecco’s Modified Eagle Medium( DMEM ) be cultured in 24-well plate. Before this, it had has 90% HepG2;

Dilute 0.75μL lipofectamine3000TM Reagent in 24.25 μL DMEM pre well;

2. Dilute 600 ng DNA and 1ul of P3000 in DMEM and make a total volume of 25 ul per well;

3. Add diluted DNA to diluted LipofectamineTM 3000 Reagent (1:1 ratio);

4. Incubate for 10-15 minutes at room temperature;

6. Change cell culture into complete cell culture medium, add DNA-lipid complex to a well of the 24-well plate;

7. Incubate cells for 12 h at 37°C, 5% CO2, change cell medium into glucose-free complete culture medium.

8. Incubate cells for 6 h at 37°C, 5% CO2, add glucose stock solution and give glucose stimulation.

9. Incubate cells at 37°C, 5% CO2, collect data of efficiency of transfection via fluorescence microscopy at continous time set after glucose stimulation of 6, 18, 30, 42 and 54 hours.

2019 January

● Brainstorm for 2019 team project. Anchor T2D as the field we want to anchor our project.

● Background information gathering.

 

2019 February

● Nurse interview and visit in geracomium to gather realistic T2D information and publicity of good lifestyles for the elders to avoid or retard T2D complication.

● Determine 2019 project --- continue with PR Predator in 2018, but focus on the degradation of glucagon receptor in hepatocytes.

● Look up for authority articles.

● Experimental skills and safety training for team members in Wet Lab.

 

2019 March

● Crucial parts construction.

 

2019 April

● First milestone in project --- designed gene circuit works well in degrade GCGR in HepG2 cell line.

 

2019 June

● Glucose sensing promoter related circuit construction.

 

2019 July

● Glucose sensing promoter functional test in HepG2.

 

2019 August

● Result for glucose sensing promoter functional test.

●Determination: Mouse primary hepatocytes as platform for continuous experiments of designed GCGR degradation circuit. Adenovirus as circuit transport tool.

 

2019 September

●Third milestone: Result for glucose sensing enabled GCGR degradation circuit in HepG2.

 

2019 October

● Fourth milestone: Result for mouse primary hepatocytes.

●Fifth milestone: Model for evaluate the effectiveness of initial design and indicate the potentials of circuit in long-term in vivo uses.