Team:NYMU-Taipei/Notebook

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JUNE

week1

  1. Plasmid pET32a was extracted from BL21 DE3.
  2. We prepared competent cell solution buffer and made competent cell of BL21 and DH5-alpha.
  3. Plasmid pET32a、pET29b were transfected into competent cell DH5-alpha.
  4. Plasmid pET32a was extracted from competent cell DH5-alpha
  5. Plasmid pET32a was checked with restriction digestion(NcoI and NotI).
  6. Plasmid CMV-Mycj-YFP, pCMV-Mycj-CFP and pET29b were transfected into competent cell DH5-alpha

JULY

week2

FRET SYSTEM

  1. Plasmid pSB1C3（ECFP），pSB1C3(SYFP2) and pSB1C3(YFP) were transformed into competent cell DH5-alpha and BL21.

CELL SYSTEM

  1. Plasmid pUC19 was transformed into competent cell DH5-alpha.
  2. Plasmid pUC19 was extracted from competent cell DH5-alpha and checked by gel electrophoresis.
  3. Plasmid pUC19 was checked with restriction digestion(DpnI, EcoRI and BamHI).

week3

FRET SYSTEM

  1. Plasmid pSB1C3-ECFP/EYFP/SYFP2/CYFP were extracted from competent cell BL21 and checked with restriction digestion(NcoI and EcoRI).
  2. Plasmid pCMV-Mycj3-ECFP was checked with restriction digestion(XbaI and XhoI).
  3. The Plasmid with CyPet and YPet was transformed into competent cell DH5-alpha.
  4. ECFP/EYFP/SYFP2 were amplified by PCR and extracted from agarose gel.

CELL SYSTEM

  1. Dkk1 promoter was amplified from HEK293 genomic DNA by KOD and DreamTaq polymerase PCR.
  2. DKK1 promoter PCR amplification checked by running an agarose gel(PCR failed).
  3. DH5-alpha pUC19 was stored in glycerol stock.

week4

FRET SYSTEM

  1. ECPF/EYFP/SYFP2 were amplified by PCR.
  2. YPet/CyPet pre/post were amplified by PCR.
  3. Plasmid GEX2T-SUMO1/cDNA3.1-T7-Ubc9/TriEx4-Rac1-2G were transfected into competent cell DH5-alpha.
  4. Plasmid GEX2T-SUMO1/cDNA3.1-T7-Ubc9/TriEx4-Rac1-2G were extracted from competent cell DH5-alpha.

week5

FRET SYSTEM

  1. CyPet/YPet/ ECFP/ EYFP/SYFP2 inserted into plasmid pET32a.
  2. The plasmids pET32a+ECFP/EYFP/SYFP2/CyPet/YPet were transformed into competent cell BL21.
  3. SUMO1 and Ubc9 from pGEX2T and pcDNA3.1-T7 were amplified by PCR.
  4. Plasmids pUC57-H7,G5(VHH),pET32a-ECFP/EYFP/SYFP2/CyPet/YPet were extracted from DH5-alpha.
  5. Plasmid Fluorescence Protein+pET32a was checked with restriction digestion(BamHI and SalI).

CELL SYSTEM

  1. KOD and DreamTaq polymerase PCR amplification of Dkk1 promoter from HEK293 genomic DNA.
  2. DKK1 promoter PCR amplification checked by running an agarose gel(Dream Taq success,KOD failed).
  3. troubleshooting of DKK1 promoter PCR amplification.
  4. KOD and DreamTaq polymerase PCR amplification of Dkk1 promoter from HEK293 genomic DNA.
  5. DKK1 promoter PCR amplification checked by running an agarose gel(Dream Taq success, KOD success).

AUGUST

week6

FRET SYSTEM

  1. CyPet, YPet/ ECFP/ EYFP/SYFP2 post and plasmid pET32a inserted into plasmid pET32a.
  2. Plasmids pET32a+FP(ECFP/EYFP/SYFP2/CyPet/YPet) were transformed into BL21.
  3. Plasmid pUC57-insert was checked with restriction digestion(XbaI and XhoI).
  4. The plasmid with LRP6 was transformed into competent cell DH5-alpha and BL21.
  5. Plasmids pET32a and pUC57-FPFSkel1 were digested with restriction enzymes(XbaI and XhoI）
  6. Plasmid pET32a was ligated with FPFSkel1.
  7. Plasmid pET32a-FPFSkel1 was transformed into competent cell BL21.
  8. His-tag was annealed.
  9. The plasmid with LRP6 was extracted from competent cell BL21.

CELL SYSTEM

  1. DKK1 promoter junction PCR was conducted.
  2. DKK1 junction PCR product was extracted from agarose gel.
  3. DKK1 junction PCR product was amplified by KOD and DreamTaq polymerase PCR.
  4. Plasmid pUC19 was digested by restriction enzyme(EcoRI and BamHI).
  5. Dkk1 promoter was amplified from HEK293 genomic DNA by KOD and DreamTaq polymerase PCR.
  6. DKK1 junction PCR product was ligated with plasmid pUC19.
  7. During the testing experiments, most of the cells (including DP cells and HEK293) was CONTIMANATED by other users. We thawed frozen cells and transferred our experimental position to other cell culture room.
  8. We got HEK293T cell line from other laboratory and continued our testing experiments.

week7

FRET SYSTEM

CELL SYSTEM

  1. The ligation of Plasmid pUC19 and the DKK1 promoter was checked with restriction digestion(EcoRI and XbaI).
  2. The ligation of Plasmid pUC19 and the DKK1 promoter was checked with colony PCR.
  3. All plasmids had already been constructed.
    1. Plasmid 1: DKK-1 promoter+ mCherry+ BGA
    2. Plasmid 1s: DKK-1 promoter+ ALB+ mCherry+ BGA
    3. Plasmid 2: CMV+ mEGFP+ BGA
    4. Plasmid 2s: CMV+ ALB+ mEGFP+ BGA
    5. Plasmid 3: CMV+ mCherry+ BGA
    6. Plasmid 3s: CMV+ ALB+ mCherry+ BGA
  4. We tested plasmid 1 versus plasmid 1s, plasmid 2 versus plasmid 2s, respectively in culture dishes.
  5. We concentrated our supernatant in order to amplify our secreted form mCherry for fluorescent detection.
  6. We tested the correlation between mCherry expression in HEK293T cell and the varying concentration of sex-hormone (dihydrotestosterone (DHT) and testosterone) at different time point.
  7. We also tried different transfection kits to improve our cell’s transfection rate.

week8

FRET SYSTEM

CELL SYSTEM

  1. Preparation for most of the materials including HEK293 (an immortalized kidney cancer cell), medium, and cultural dishes.
  2. Using HEK293 cells for basic training such as: refreshing mediums, subculturing cells, and freezing cells.
  3. Preparation for RT-PCR to get the 5-alpha reductase type 2 from HEK293 cells. We successfully extracted the cDNA of 5-alpha reductase type 2 for our following plasmid construction experiments.
  4. We repeated the previous experiments to get more results.
  5. We did HUMAN DKK-1 ELISA to detect HEK293T DKK-1 expression at six different DHT concentration, BUT WE FAILED.
  6. We got high transfection rate by using calcium phosphate transfection technique and also co-transfected internal control plasmid with plasmid 1s in HEK293T.

week9

FRET SYSTEM

CELL SYSTEM

  1. Plasmid EGFP-LC3 was extracted from DH5-alpha.
  2. Plasmid EGFP was checked with restriction digestion(XhoI, NheI,MfeI and BamHI).
  3. CMV promoter was obtained from plasmid cDNA by using restriction enzyme(NheI and MfeI).
  4. CMV promoter was ligated with plasmid pUC19(EcoRI, XbaI, MfeI and NheI).
  5. improving cell culturing techniques and preparation for the arrival of immortalized human hair follicle dermal papilla cells.

SEPTEMBER

week10

FRET SYSTEM

CELL SYSTEM

  1. mCherry and BGA were cloned into pUC19 by using restriction enzyme SalI, BamHI and BamHI, HindIII respectively.
  2. ALB (secreting peptide) was obtained by annealing PCR, and then fused with mCherry. The secreting mCherry was also cloned into pUC19 with SalI and BamHI.
  3. mCherry and BGA were cloned into pUC19 simultaneously by digestion of pUC19 with SalI and HindIII and by two in one ligation.
  4. Reception of immortalized human hair follicle dermal papilla cells and testosterone from our generous collaborator - Dr. Chen Chih-Chiang.
  5. Test the properties of the DP cells before the upcoming transfection experiments.
  6. Test various transfection conditions by using HEK293 cells and PD cells.

week11

FRET SYSTEM

CELL SYSTEM

  1. The secreting mCherry and BGA were also cloned into pUC19 simultaneously by digestion of pUC19 with SalI and HindIII and by two in one ligation.
  2. CMV promoter region was first digested with MfeI and NheI from plasmid pcDNA3.1. However, the digestion quality and efficiency of enzyme NheI was found less capable than expected by the running the agarose gel electrophoresis. CMV promoter was then cloned into pUC19 with MfeI and KpnI.
  3. mEGFP (monomer EGFP) was obtained by two-steps PCR. The point-mutated segments of mEGFP were amplified from plasmid carrying EGFP by KOD polymerase PCR, using primers designed with favored point-mutation sequences. The second PCR produced complete mEGFP by using purified PCR products from former PCR as the templates.
  4. Acquire suitable transfection conditions of HEK293 cells by testing with calcium phosphate transfection.
  5. The pEGFP-LC3 plasmid had already been tested through transfection
  6. DKK-1 promoter and secreting peptide attached reporter gene had also been cloned into pUC19.

week12

FRET SYSTEM

CELL SYSTEM

  1. The first plasmid, DKK1 promoter + secreting mCherry + BGA + pUC19 (plasmid 1s), was constructed.
  2. DKK1 promoter + mCherry + BGA + pUC19 (plasmid 1) was also constructed.
  3. Testing the difference between plasmid A(DKK-1 promoter+ mCherry+ BGA) and plasmid B( DKK-1 promoter+ ALB+ mCherry+ BGA) using calcium phosphate transfection technique.
  4. Adjusting the transfection conditions in DP cells.

week13

FRET SYSTEM

CELL SYSTEM

  1. Two plasmids, CMV promoter + mCherry + BGA + pUC19 and CMV promoter + ALB + mCherry + BGA +pUC19, were constructed for observation of transfection effectiveness.
  2. The ligation of mEGFP and secreting mEGFP with pUC19 failed.

OCTOBER

week14

FRET SYSTEM

CELL SYSTEM

  1. mEGFP and secreting mEGFP were ligated with BGA and cloned into pUC19 with with SalI and HindIII and by two in one ligation.
  2. CMV promoter + secreting mEGFP + BGA + pUC19 (plasmid 2s) was constructed.

week15

FRET SYSTEM

CELL SYSTEM

  1. The submitted parts, mEGFP, secreting mCherry, and secreting mEGFP were cloned into pSB1C3 respectively.
  2. mEGFP and secreting mEGFP were finally cloned into pUC19 respectively after trying many times.

week16

FRET SYSTEM

CELL SYSTEM

LABNOTE ORIGINAL FILE


LABNOTE ORIGINAL FILE(in Chinese)