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人胚胎干细胞的单层内胚层分化
Protocol
1.准备ES细胞到matrigelplate,去除MEFs
►准备1:3matrigelplate:冰上预冷TC培养板和移液管,冰箱或者冰上解冻1:3matrigel。小心把matrigel包被在板子上且保证覆盖底部,然后吸出多余的matrigel(在包被matrigel过程中保持所有东西预冷)。把matrigelplates放在冰上30min。再次吸出多余的matrigel并把包被matrigel的板子37◦C孵育30min。
►37◦CTrypLE处理融合的ES细胞2-3min(10cmdish用4mlTrypLE或者6孔板的每孔1ml),然后吸出TrypLE。用washmedia(IMDM+Glu+P/S+0.1%BSA)洗2-3次。10cmdish加4mlhESmedia或者6孔板的每孔1ml,用细胞刮棒刮去板子底部的ES细胞。上下吹打3-5次,显微镜下观察直到可以得到5-10个细胞团。
►接种细胞到matrigel-coated板子上
2.设置T0:5%O2,5%CO2条件下,当有70-80%融合时,细胞会发生分化。用washmedia洗细胞2次并添加适量体积T0培养基(如10cmdish加10ml,6孔板的每孔2ml)
3.用washmedia洗细胞并且每天更换培养基直到T5。前几天看到大细胞死亡是正常现象。
4.进入肝分化,用Accutase37◦C3min分离T5细胞,washmedia洗细胞两次。6孔板的每孔加入1mlwashmedia并刮下细胞。收集T5细胞,1200rpm离心3min。用T5media重悬细胞并且以1:6接种细胞到matrigel-coated6孔板,250Kcells/well。
5.每2天用不同分化培养基接种细胞(如下),并在18-25天收集用于分析。
注:matrigel的每批内毒素水平和蛋白浓度都有差异,建议内毒素水平不高于2units/mL,蛋白水平应在7-10mg/mL之间。如果蛋白水平较高,可能要多于1:1稀释,这取决于hESC克隆形态和hESC分化为需要系别的能力。操作matrigel过程中,所有管子、培养板和移液器都必须是预冷的,matrigel室温下回凝固。
附:
1)hESMedia(500ml)
DMEM/F12:400ml
KOSR:100ml
NEAA:5ml
L-glutamine:5ml
Pen/strep:5ml
β-Mercaptoethanol:3.5ul
bFGF:10ng/ml(50ulof100ug/ml贮存)
L-AscorbicAcid:50ug/ml–每次培养基更换加新鲜的5mg/ml贮存液
2)分化培养基:
T0Media | |||
BasicMedia | RPMI | ||
Ingredient | Stock | Volume | Final |
Glutamine | 100x | 10ul/ml | 1x |
MTG(MONOTHIOGLYCEROL) | 13ul/ml | 3ul/ml | 4.5×10-4M |
Chir99021 | 10mM | 0.2ul/ml | 2uM |
ActivinA | 100ug/ml | 1ul/ml | 100ng/ml |
T1andT2MEDIA | |||
BasicMedia | RPMI | ||
Ingredient | Stock | Volume | Final |
Glutamine | 100x | 10ul/ml | 1x |
MTG(MONOTHIOGLYCEROL) | 13ul/ml | 3ul/ml | 4.5×10-4M |
AscorbicAcid | 5mg/ml | 10ul/ml | 50ug/ml |
BMP4 | 10ug/ml | 0.025ul/ml | 0.25ng/ml |
bFGF | 10ug/ml | 0.5ul/ml | 5ng/ml |
ActivinA | 100ug/ml | 1ul/ml | 100ng/ml |
VEGF | 25ug/ml | 0.4ul/ml | 10ng/ml |
T3andT4MEDIA | |||
BasicMedia | SFD | ||
Ingredient | Stock | Volume | Final |
MTG(MONOTHIOGLYCEROL) | 13ul/ml | 3ul/ml | 4.5×10-4M |
AscorbicAcid | 5mg/ml | 10ul/ml | 50ug/ml |
BMP4 | 10ug/ml | 0.025ul/ml | 0.25ng/ml |
bFGF | 10ug/ml | 0.5ul/ml | 5ng/ml |
ActivinA | 100ug/ml | 1ul/ml | 100ng/ml |
VEGF | 25ug/ml | 0.4ul/ml | 10ng/ml |
750ml:homemadeIMDM(Invitrogen12200-069)(1×10L)(+Glutamine,+25mMHEPES+P/S)
250ml:HamsF12
5ml:N2-supplement(Invitrogen17502-048)
10ml:B27supplementw/oretinoicacid(Invitrogen12587-010)
5ml:10%BSAinPBS
(3)肝分化培养基:
DET5andT6MEDIA | |||
BasicMedia | SFD | ||
Ingredient | Stock | Volume | Final |
Glutamine | 100x | 10ul/ml | 1x |
MTG(MONOTHIOGLYCEROL) | 13ul/ml | 3ul/ml | 4.5×10-4M |
AscorbicAcid | 5mg/ml | 10ul/ml | 50ug/ml |
BMP4 | 10ug/ml | 1ul/ml | 10ng/ml |
bFGF | 10ug/ml | 0.5ul/ml | 5ng/ml |
ActivinA | 100ug/ml | 0.5ul/ml | 50ng/ml |
VEGF | 10ug/ml | 1ul/ml | 10ng/ml |
DET7-T12MEDIA | |||
BasicMedia | SFD | ||
Ingredient | Stock | Volume | Final |
Glutamine | 100x | 10ul/ml | 1x |
MTG(MONOTHIOGLYCEROL) | 13ul/ml | 3ul/ml | 4.5×10-4M |
AscorbicAcid | 5mg/ml | 10ul/ml | 50ug/ml |
BMP4 | 100ug/ml | 0.5ul/ml | 50ng/ml |
bFGF | 100ug/ml | 0.1ul/ml | 10ng/ml |
VEGF | 25ug/ml | 0.4ul/ml | 10ng/ml |
EGF | 50ug/ml | 0.2ul/ml | 10ng/ml |
TGFα | 50ug/ml | 0.4ul/ml | 20ng/ml |
HGF | 100ug/ml | 1ul/ml | 100ng/ml |
DEX | 50uM | 2ul/ml | 100nM |
T13-T18 | |||
BasicMedia | SFD | ||
Ingredient | Stock | Volume | Final |
MTG(MONOTHIOGLYCEROL) | 13ul/ml | 3ul/ml | 4.5×10-4M |
AscorbicAcid | 5mg/ml | 10ul/ml | 50ug/ml |
bFGF | 100ug/ml | 0.1ul/ml | 10ng/ml |
VEGF | 25ug/ml | 0.4ul/ml | 10ng/ml |
EGF | 50ug/ml | 0.2ul/ml | 10ng/ml |
HGF | 100ug/ml | 1ul/ml | 100ng/ml |
OSM | 100ug/ml | 0.2ul/ml | 20ng/ml |
DEX | 50uM | 4ul/ml | 200nM |
VK(VitaminK) | 10mg/ml | 0.6ul/ml | 6ug/ml |
DMSO | dry | 10ul/ml | 1% |
gSI(γ-SecretaseInhibitor) | 1mM | 1.5ul/ml | 1.5uM |
LiverT19-T25 | |||
BasicMedia | SFD | ||
Ingredient | Stock | Volume | Final |
MTG(MONOTHIOGLYCEROL) | 13ul/ml | 3ul/ml | 4.5×10-4M |
AscorbicAcid | 5mg/ml | 10ul/ml | 50ug/ml |
HGF | 100ug/ml | 1ul/ml | 100ng/ml |
OSM | 100ug/ml | 0.2ul/ml | 20ng/ml |
DEX | 50uM | 2ul/ml | 100nM |
VK(VitaminK) | 10mg/ml | 0.6ul/ml | 6ug/ml |
以上内容摘自StemBook-protocols
主要产品介绍:
cytokines | Supplier/Catalog# | StockConc. |
hBMP-4 | PeproTech#120-05/120-05ET/AF-120-05ET | 10ug/mL |
hbFGF | PeproTech#100-18B/AF-100-18B/100-18C/AF-100-18C | 10ug/mL |
hVEGF | PeproTech#100-20/AF-100-20 | 5ug/mL |
ActivinA | PeproTech#120-14/AF-120-14/120-14E/AF-120-14E/120-14P | 10ug/mL |
EGF | PeproTech#AF-100-15 | 100ug/mL |
HGF | PeproTech#100-39/100-39H | 10ug/mL |
TGFα | PeproTech#100-16A/AF-100-16A | 20ug/mL |
OncostatinM(OSM) | PeproTech#300-10/300-10T/AF-300-10T | 100ug/ml |
Supplier/Catalog# | |
细胞培养皿,100mm,TC处理,无菌,无细胞毒性 | Eppendorf#0030702115 |
细胞培养板,6孔,TC处理,带盖,平底,独立包装,无菌,无细胞毒性 | Eppendorf#0030720113 |
其他需要辅助试剂,可点击联科官网或致电400-6721-600查询
Matrigel | N2supplement |
DMEM/F12 | B27Supplement |
KnockoutTMSerumReplacement(KOSR) | Non-EssentailAminoAcids |
β-Mercaptoethanol | BSA |
L-AscorbicAcid | γ-SecretaseInhibitor |
Monothioglycerol | VitaminK(VK) |
TrypLE | Dexamethasone |
DNAseIBovinePancreas | DMSO |
HamsF12media | Chir99021 |
L-Glutamine | L-ASCORBICACID(AA) |
Penicillin/Streptomycin | MONOTHIOGLYCEROL(MTG) |
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