Difference between revisions of "Cardiomyocyte Preparation"

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(Created page with "Bettencourt-Dias & Laube F combined 1) Collect hearts in 70% Leibovitz-15 (L15) medium (AL15) w/ pen-strep 2) Wash them once in 70% Leibovitz-15 (L15) medium (AL15) w/ pen-st...")
 
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Bettencourt-Dias & Laube F combined
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[[Bettencourt-Dias & Laube F combined]]
  
1) Collect hearts in 70% Leibovitz-15 (L15) medium (AL15) w/ pen-strep
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# Collect hearts in 70% Leibovitz-15 (L15) medium (AL15) w/ pen-strep
2) Wash them once in 70% Leibovitz-15 (L15) medium (AL15) w/ pen-strep
+
# Wash them once in 70% Leibovitz-15 (L15) medium (AL15) w/ pen-strep
3) Remove the newt ventricles
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# Remove the newt ventricles
4) Wash ventricles in 70% Leibovitz-15 (L15) medium (AL15) w/ pen-strep
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# Wash ventricles in 70% Leibovitz-15 (L15) medium (AL15) w/ pen-strep
5) Store ventricles O.N. at 25C in AL15 w/ pen-strep
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# Store ventricles O.N. at 25C in AL15 w/ pen-strep
6) Digest ventricles 2ml d.sol for 8h in a shaking water bath at 27C. Change the enzyme solution every 1-2h.
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# Digest ventricles 2ml d.sol for 8h in a shaking water bath at 27C. Change the enzyme solution every 1-2h.
 
Note: D.sol
 
Note: D.sol
 
- aPBS w/
 
- aPBS w/
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- gentamycin (50ug/ml)
 
- gentamycin (50ug/ml)
  
7) Neutralize cell suspensions w/ complete  4ml AL-15 medium (AL-15 w/ 10% FBS and pen-strep)
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# Neutralize cell suspensions w/ complete  4ml AL-15 medium (AL-15 w/ 10% FBS and pen-strep)
8) Pass through a 100um microsieve (reason for this???? And what to collect – flowthrough or the retenate… cardiomyocytes are min 150um in length…)
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# Pass through a 100um microsieve (reason for this???? And what to collect – flowthrough or the retenate… cardiomyocytes are min 150um in length…)
9) Centrifuge the neutralized suspensions for 10min at 500 rpm .
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# Centrifuge the neutralized suspensions for 10min at 500 rpm .
10) Resuspend in complete AL15 (volume???)
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# Resuspend in complete AL15 (volume???)
11) preplate in uncoated 6cm culture dishes for 3 days at 25C in a humidified CO2 incubator.   
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# preplate in uncoated 6cm culture dishes for 3 days at 25C in a humidified CO2 incubator.   
 
Note: Blood cells, connective tissue and some pigmented cells attach to the culture dish during this step, while the cardiomyocytes remain in suspension (non-adhere)
 
Note: Blood cells, connective tissue and some pigmented cells attach to the culture dish during this step, while the cardiomyocytes remain in suspension (non-adhere)
12) Transfer the supernatant onto laminin coated dishes (15ug/ml in serum-free medium, coating for 60 min) *at a density of 4000 cells/cm2* (is it necessary at such density?)
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# Transfer the supernatant onto laminin coated dishes (15ug/ml in serum-free medium, coating for 60 min) *at a density of 4000 cells/cm2* (is it necessary at such density?)
13) Change the medium only when 3 days have passed since plating.
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# Change the medium only when 3 days have passed since plating.

Revision as of 07:55, 11 August 2014

Bettencourt-Dias & Laube F combined

  1. Collect hearts in 70% Leibovitz-15 (L15) medium (AL15) w/ pen-strep
  2. Wash them once in 70% Leibovitz-15 (L15) medium (AL15) w/ pen-strep
  3. Remove the newt ventricles
  4. Wash ventricles in 70% Leibovitz-15 (L15) medium (AL15) w/ pen-strep
  5. Store ventricles O.N. at 25C in AL15 w/ pen-strep
  6. Digest ventricles 2ml d.sol for 8h in a shaking water bath at 27C. Change the enzyme solution every 1-2h.

Note: D.sol - aPBS w/ - 0.5% Bactotrypsin (Difco) - 380U/ml collagenase (Sigma) - 0.15% BSA - 0.3% glucose - gentamycin (50ug/ml)

  1. Neutralize cell suspensions w/ complete 4ml AL-15 medium (AL-15 w/ 10% FBS and pen-strep)
  2. Pass through a 100um microsieve (reason for this???? And what to collect – flowthrough or the retenate… cardiomyocytes are min 150um in length…)
  3. Centrifuge the neutralized suspensions for 10min at 500 rpm .
  4. Resuspend in complete AL15 (volume???)
  5. preplate in uncoated 6cm culture dishes for 3 days at 25C in a humidified CO2 incubator.

Note: Blood cells, connective tissue and some pigmented cells attach to the culture dish during this step, while the cardiomyocytes remain in suspension (non-adhere)

  1. Transfer the supernatant onto laminin coated dishes (15ug/ml in serum-free medium, coating for 60 min) *at a density of 4000 cells/cm2* (is it necessary at such density?)
  2. Change the medium only when 3 days have passed since plating.