Preparing Cells for Freezing/Thawing | Reagents used for prepping Cells | Freezing Do's/Don'ts | Miscellaneous | Dangers of not Freezing Correctly |
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What is10x10^6
Freezing Concentration
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What is Thrombin
This Reagent forces Platelets to form large Aggregates that are heavier than Lymphocytes.
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What is a larger tube (disposable glass culture tube)
Frozen samples in small cryovials are transferred to what? This is so they can be diluted sufficiently to minimize toxicity.
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What is 1.077 g/mol
Lymphocytes and Monocytes have a density of
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What is 4 Hours
When doing a Manual Freezing, it is important to leave the cells in the -20 C Freezer for a minimum of
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What is Spleen, Node, PBL
Tissues we can use to isolate Lymphocytes
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What is Tris+NH4CL
Lyses RBC
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What is Platelets
This needs to be removed because it is covered with HLA class I receptors and will bind to HLA Antibody which will decrease Antibody available for Lymphocytes
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What is -170°C-180°C
The Liquid Nitrogen tank should be between these Temps
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What is Cell Death
If the cell to DMSO Ratio is not correct this could lead to
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What is Final Freezing Concentration
5x10^6
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What is Histopaque
A Denstiy Gradient that has a specific gravity that is the sameas Lymphocytes
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What is 45% Percoll
This Reagent is recommended to use when cleaning up frozen Lymphocyte preps before running FCXM because this removes any Non-Viable Cells
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What is Post Tx Monitoring
This is One of the main reasons we freeze Donor Cells
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What is False Neg/Pos
If the cell prep is not cleaned properly, it can give results that are
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What is Complete Media (RPMI FCS+PS)
This helps the Cells stay "Happy"
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What is DMSO
This is a Cryopreservative that is essential to prevent cell damage due to ice crystal formation
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What is 80%
Cell Viability should always be greater than
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What is Once a week on FRIDAY!!!
This is when we check the Nitrogen Tank Levels!!! Lol
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What is kept cool (4 degrees C)
DMSO is toxic to lymphocytes at room temperature, so cell should be
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What is a Cryovial 2ml
Our Cells are frozen in what type of tubes
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What is Iron
By ingestion this Reagent, it aids in the removal of Monocytes by passing them over a magnet
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What is the TOP Line or RIGHT Line
When counting your Lymphocytes for freezing on the Hemocytometer, We do not include cells that are on the
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What is 10 vials
We freeze how many Tubes per Organ
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What is Uninterpretable Results
A scatter plot with Dual Populations or with very FEW T or B Cells gives DR. K
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