• Species: Non-human and non-primate cell lines usually have fewer biosafety
restrictions, but ultimately your experiments will dictate whether to use speciesspecific
cultures or not.
• Functional characteristics: What is the purpose of your experiments? For example,
liver- and kidney-derived cell lines may be more suitable for toxicity testing.
• Finite or continuous: While choosing from finite cell lines may give you more options
to express the correct functions, continuous cell lines are often easier to clone and
maintain.
• Normal or transformed: Transformed cell lines usually have an increased growth
rate and higher plating efficiency, are continuous, and require less serum in media,
but they have undergone a permanent change in their phenotype through a genetic
transformation.
• Growth conditions and characteristics: What are your requirements with respect
to growth rate, saturation density, cloning efficiency, and the ability to grow in
suspension? For example, to express a recombinant protein in high yields, you might
want to choose a cell line with a fast growth rate and an ability to grow in suspension.
• Other criteria: If you are using a finite cell line, are there sufficient stocks available?
Is the cell line well-characterized, or do you have to perform the validation yourself?
If you are using an abnormal cell line, do you have an equivalent normal cell line that
you can use as a control? Is the cell line stable? If not, how easy it is to clone it and
generate sufficient frozen stocks for your experiments?
Acquiring Cell Lines You may establish your own culture from primary cells, or you may choose to buy
established cell cultures from commercial or non-profit suppliers (i.e., cell banks).
Reputable suppliers provide high quality cell lines that are carefully tested for
their integrity and to ensure that the culture is free from contaminants. We advise
against borrowing cultures from other laboratories because they carry a high risk of
contamination. Regardless of their source, make sure that all new cell lines are tested for
mycoplasma contamination before you begin to use them.
• Species: Non-human and non-primate cell lines usually have fewer biosafetyrestrictions, but ultimately your experiments will dictate whether to use speciesspecificcultures or not.• Functional characteristics: What is the purpose of your experiments? For example,liver- and kidney-derived cell lines may be more suitable for toxicity testing.• Finite or continuous: While choosing from finite cell lines may give you more optionsto express the correct functions, continuous cell lines are often easier to clone andmaintain.• Normal or transformed: Transformed cell lines usually have an increased growthrate and higher plating efficiency, are continuous, and require less serum in media,but they have undergone a permanent change in their phenotype through a genetictransformation.• Growth conditions and characteristics: What are your requirements with respectto growth rate, saturation density, cloning efficiency, and the ability to grow insuspension? For example, to express a recombinant protein in high yields, you mightwant to choose a cell line with a fast growth rate and an ability to grow in suspension.• Other criteria: If you are using a finite cell line, are there sufficient stocks available?Is the cell line well-characterized, or do you have to perform the validation yourself?If you are using an abnormal cell line, do you have an equivalent normal cell line thatyou can use as a control? Is the cell line stable? If not, how easy it is to clone it andgenerate sufficient frozen stocks for your experiments?Acquiring Cell Lines You may establish your own culture from primary cells, or you may choose to buyestablished cell cultures from commercial or non-profit suppliers (i.e., cell banks).Reputable suppliers provide high quality cell lines that are carefully tested fortheir integrity and to ensure that the culture is free from contaminants. We adviseagainst borrowing cultures from other laboratories because they carry a high risk ofcontamination. Regardless of their source, make sure that all new cell lines are tested formycoplasma contamination before you begin to use them.
การแปล กรุณารอสักครู่..
