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TROUBLESHOOTINGProblem: The OP9 cells are more than 80%-90% confluent.Solution: It is important when creating working stocks of OP9 cells for freezing that the cells are never allowed to become more than 80%-90% confluent. Monitor cell density to avoid exceeding this level of confluency. If the OP9 cells are too confluent when a co-culture is in progress, it is fine to use these OP9 ......阅读全文

The-OP9DL1-System:-Generation-of-TLymphocytes-from-Embryonic2

Freezing ESCs 25. Passage the ESCs as described in Step 22. Resuspend the cells in 3 mL of freezing medium for OP9 cells. 26. Aliquot 1 mL of cell sus

The-OP9DL1-System:-Generation-of-TLymphocytes-from-Embryonic4

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The-OP9DL1-System:-Generation-of-TLymphocytes-from-Embryonic3

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collect piece of tissue (e.g., pieces of a leaf or flower) in Eppendorf tube containing 40 ml 0.25 N NaOHput in boiling H2 O for 30 sec (optimum may n