Protocols

Endothelial cell growth medium (EGM) for HUVECs and DMEM preparation

 

Materials:

1.    M-199 powder (Gibco, 31100-035): without HEPES, without NaHCO3 or DMEM/F12 powder (Gibco, 12400-024): with HEPES (15 mM), without NaHCO3 or DMEM powder high glucose (Gibco, 12800-017): without NaHCO3 or DMEM powder low glucose (Gibco, 31600-034): without NaHCO3 (glucose concentration: HG DMEM 4.5 g/L, LG DMEM 1 g/L). If there is no DMEM powder (HG), you can use DMEM powder (LG) plus glucose (7 g for 2 L HG DMEM).

2. Endothelial cell growth supplements (EGS, Merck, 02-102, 150 mg)

3. HEPES sodium salt (Sigma, MW:260.29)

4. NaHCO3 (Sigma)

5. Heparin sodium salt (Santa Cruz Biotechnology, sc-203075B)

6. Antibiotic-antimycotic (100X, Gibco, 15240-062), add before use.

7. FBS (Gibco 10270-106), add before use.

8. Autoclaved filters and bottles

1X medium filters with 0.2m PVDF membrane

75 cm2 cell culture flask with flat cap

 

Procedure

1.    Prepare 3L EGM without EGS

 

M-199 powder

DMEM/F12 powder

DMEM powder

Medium powder

2 packages

3 packages

2 packages

HEPES (final 25 mM)

13.0 g

7.1 g

 

NaHCO3

4.4 g

3.6 g

7.4 g

Heparin

0.2 g

0.3 g

 

H2O

1.8 L

2.8 L

1.8 L

Adjust PH to 7.2-7.3

Add H2O to the final volume 2L or 3L (DMEM/F12 powder), please use the volumetric flask instead of a graduated cylinder.

 

2. Sterilize the medium:

Filter the medium by with 0.2m PVDF membrane.

 

3. Add EGS:

Dissolve the 1 bottle (150 mg) EGS with 9 ml filtered EGM. Add 3 ml EGS into 1L EGM. The left EGS can be stock at -20��C, please label it clearly.  

 

4. Add FBS (add before use)

For 1L EGM, add 110ml FBS to 10% EGM. This is enough for general use.

Our suggestion: for primary MAEC or "old" HUVECs (passage>6), increase the FBS into 20%.

 

5. Label the bottle clearly (medium type, your name, prepare date), and stock the EGM or DMEM at 4 ��C.

 

Label sample: EGM AA+EGS+10%FBS+, HL, 31/Mar/2022.

 

Medium containing

 

Label

 

EGM without AA, EGS. FBS

 

EGM AA- EGS- FBS-. Name, Date

 

EGM with AA, without EGS, FBS

 

EGM AA+ EGS- FBS-. Name, Date

 

EGM with AA, EGS, without FBS

 

EGM AA+ EGS+ FBS-. Name, Date

 

EGM with AA, EGS, FBS (10%)

 

EGM AA+ EGS+ 10%FBS+, Name, Date

 

DMEM High glucose with AA, FBS (10%)

 

HG DMEM AA+ 10%FBS+, Name, Date

 

Updated on 31 Mar 2022 by HL