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ClonaCell™-CHO CD液体培养基

化学成份明确，无动物成分，无血清，无蛋白质，无谷氨酰胺的液体培养基，用于培养CHO细胞

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产品号 #（选择产品）

产品号 #03817_C

化学定义，无动物成分，无血清，无蛋白质，无谷氨酰胺的液体培养基，用于培养CHO细胞

产品优势

支持CHO细胞的蛋白质表达和其他应用在化学定义，蛋白质和动物成分无培养基的扩展
兼容ClonaCell™-CHO CD Medium（目录#03815），ClonaCell™-CHO ACF Supplement（目录#03820），ClonaCell™-TCS Medium（目录#03814）和ClonaCell™FLEX（目录#03818）

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总览

产品说明书及文档

应用领域

总览

ClonaCell™-CHO CD液体培养基是培养适应悬浮的CHO细胞的通用液体培养基。这种化学成份明确的液体培养基不含蛋白质和动物成分，不含L -谷氨酰胺、选择剂、抗生素或酚红。ClonaCell™-CHO CD液体培养基与多种筛选系统兼容，包括二氢叶酸还原酶（DHFR）和谷氨酰胺合成酶（GS）。

包含
• Kolliphor® P188
• 其他成分

分类
专用培养基

细胞类型
CHO细胞

种属
其他物种

应用
细胞培养

品牌
ClonaCell

研究领域
抗体制备，细胞系制备，药物发现和毒理检测

制剂类别
不含动物成分，化学成分明确，不含蛋白质，无血清

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产品说明书及文档

请在《产品说明书》中查找相关支持信息和使用说明，或浏览下方更多实验方案。

Document Type

Product Name

Catalog #

Lot #

Language

Document Type

Product Information Sheet

Product Name

ClonaCell™-CHO CD Liquid Medium

Catalog #

03817

Lot #

All

Language

English

Document Type

Safety Data Sheet

Product Name

ClonaCell™-CHO CD Liquid Medium

Catalog #

03817

Lot #

All

Language

English

应用领域

本产品专为以下研究领域设计，适用于工作流程中的高亮阶段。探索这些工作流程，了解更多我们为各研究领域提供的其他配套产品。

Research Area

Workflow Stages

Workflow Stages for CHO and Other Cell Line Development

Transfection and Selection

Cloning

Expansion and Characterization

Why do I get more cells when I select my fusion in liquid medium rather than in methylcellulose-based semi-solid medium?

Cells grown in liquid medium may appear to grow more rapidly than in methylcellulose-based medium. This is often due to the presence of a few rapidly growing clones that multiply quickly and become abundant in liquid culture, overgrowing clones that grow more slowly. In methylcellulose cultures, the rapidly growing cells remain in close proximity to each other, resulting in large colonies, each derived from a single fusion or transfection product. The large clones don't overgrow smaller, slower growing colonies, which can be separately isolated.

How do I thaw ClonaCell™ methylcellulose-based semi-solid medium?

We recommend thawing the medium overnight in a refrigerator at 4°C and mixing well.

How do I measure and dispense methylcellulose semi-solid medium?

We recommend using a 12 mL syringe with a 16 gauge needle attached (blunt end needles are recommended for safety purposes). Do not dispense the semi-solid media/cell mixture using serological pipettes as the media will stick to the pipette walls, resulting in inaccurate dispensed volumes and loss of cells.

My ClonaCell™ methylcellulose semi-solid medium appears runny. Why does this happen?

"Runny" methylcellulose could be a result of improper handling. Diluting the methylcellulose with too much liquid medium, or insufficient mixing before use, will result in methylcellulose with altered viscosity. Excessive condensation on the inside of the cell culture dish lid can result in water dripping onto the cultures, lowering viscosity. Additionally, bumping, shaking or other sudden movement of the culture may also disrupt the colonies. Note: methylcellulose is less viscous at room temperature than at 37°C.

What is the optimal number of colonies per plate?

We recommend 50-150 colonies per plate. As it is difficult to anticipate the numbers of colonies after a fusion or transfection, we recommend plating at three different densities to increase the likelihood of achieving a plating density of approximately 100 colonies per plate. This density allows sufficient space between the colonies to allow for easy colony picking.

There are still bubbles in the media after I plate my cells. Do I need to disrupt the bubbles?

We recommend that you avoid creating large bubbles during plating, but there is no need to manually pop or disperse the small bubbles after plating. They will disperse over the incubation period of 10-14 days.

Do I ever need to re-clone cultures grown with ClonaCell™ semi-solid medium?

Re-cloning is a good practice to observe and is recommended if the number of colonies in the original dishes was very high.

Once I pick the colonies and grow the cells in plates, will the residual methylcellulose interfere with characterization? For example, will I have problems doing an ELISA?

There will likely be some residual methylcellulose contamination when colonies are picked and transferred to the 96-well plate with the liquid growth medium. The concentration of methylcellulose, however, should be low enough that it should not interfere with most assays.

How important is the incubator humidity when culturing in methylcellulose-based medium?

Very important. In situations where the humidity is not high enough, we recommend that the 100 mm Petri dishes should be placed with an open dish containing sterile water inside a larger plastic container with a lid. Without very high humidity, the media will dry out over the culture period and this will impede the growth of the colonies.

Do I have to use 100 mm petri dishes or can I use other cultureware?

We recommend 100 mm Petri dishes as these have been used to develop and test ClonaCell™ semi-solid media. We have found that the surface area of these dishes allows for easy colony picking. Other sizes of dish (e.g. 6-well plates) can be used. It is important to use non-coated dishes to prevent cells from sticking to the bottom of the plate and obscuring the colonies. The volume of media plated should be adjusted to reflect the surface area of the dish being used.

Are there any selective agents in ClonaCell™-CHO ACF or ClonaCell™-CHO CD?

These media do not contain hypoxanthine, aminopterin, thymidine, glutamine, or any other selective agents or antibiotics. These media are therefore fully customizable. Both ClonaCell™-CHO ACF and ClonaCell™-CHO CD are compatible with dihydrofolate reductase (DHFR) and glutamine synthetase (GS) selection.

My cells grow fine in ClonaCell™-CHO ACF but I do not see colony growth in ClonaCell™-CHO CD. Why?

The plating density for successful colony growth in protein-free medium needs to be higher than what is recommended for medium that contains protein. The optimal plating density should be determined empirically by plating several cell densities. For example, when re-cloning established cell lines, we recommend testing 200-1000 cells per 100 mm plate for ClonaCell™-CHO ACF and testing 2000-10000 cells per 100mm dish for ClonaCell™-CHO CD.

What medium do you recommend for the expansion of clones after selection in ClonaCell™-CHO ACF or ClonaCell™-CHO CD?

CHO cells selected in either ClonaCell™-CHO ACF or ClonaCell™-CHO CD semi-solid medium can be expanded in ClonaCell™-CHO CD Liquid medium.

How many cells should I plate for cloning in ClonaCell™-CHO CD?

Cloning efficiencies vary for different clones and cell lines. For optimal cloning efficiencies, cells should be in logarithmic phase prior to plating. If you have had previous experience with cloning in a chemically defined liquid medium, plating cell concentration that would result in ~100 clones may be used to plate in semi-solid medium (e.g. If plating at 1 cell/well in a 96-well plate results in 10 wells being positive for clones, plating 1000 cells per 100mm plate in semi-solid medium would be a good starting cell concentration to test). A minimum of three plating cell concentrations is recommended. If no work has been previously done with the specific cell line, we recommend a range of 25 000 - 100,000 cells per 100 mm dish for selection and cloning after transfection, and 2000 - 10,000 cells per 100 mm dish for subcloning. Additional optimization of cell concentrations may be necessary.

Is the serum in ClonaCell™-TCS medium heat inactivated?

Yes, all serum used in ClonaCell™ is heat inactivated.

Is there any IgG in ClonaCell™ TCS?

While we don't add IgG to the ClonaCell™ media, we do add serum, which contains an undefined amount of IgG. We selectively use serum lots with low IgG levels in the production of ClonaCell™ media, however, levels vary from lot to lot. IgG levels in a specific lot of ClonaCell™ TCS medium are available in the lot-specific Certificate of Analysis.

Can ClonaCell™-TCS be used with any cell line?

A list of recommended cell lines can be found in the manual. Other cell lines may be compatible with ClonaCell™-TCS. It will be necessary, however, to determine the plating cell density and growth efficiency of the desired cells in ClonaCell™-TCS.

物种	其它物种
Contains	• Kolliphor® P188 • Other ingredients
配方	不含动物成分, 化学成分, 无蛋白质, 无血清

ClonaCell™-CHO CD液体培养基

产品号 #03817

产品号 #（选择产品）

产品号 #03817_C

产品优势

总览

产品说明书及文档

应用领域

相关材料与文献

Request Pricing

更多信息

Scientists Helping Scientists™

ClonaCell™-CHO CD液体培养基

产品号 #03817

产品号 #（选择产品）

产品号 #03817_C

产品优势

总览

产品说明书及文档

应用领域

相关材料与文献

技术资料 (8)

常见问题

Why do I get more cells when I select my fusion in liquid medium rather than in methylcellulose-based semi-solid medium?

How do I thaw ClonaCell™ methylcellulose-based semi-solid medium?

How do I measure and dispense methylcellulose semi-solid medium?

My ClonaCell™ methylcellulose semi-solid medium appears runny. Why does this happen?

What is the optimal number of colonies per plate?

There are still bubbles in the media after I plate my cells. Do I need to disrupt the bubbles?

Do I ever need to re-clone cultures grown with ClonaCell™ semi-solid medium?

Once I pick the colonies and grow the cells in plates, will the residual methylcellulose interfere with characterization? For example, will I have problems doing an ELISA?

How important is the incubator humidity when culturing in methylcellulose-based medium?

Do I have to use 100 mm petri dishes or can I use other cultureware?

Are there any selective agents in ClonaCell™-CHO ACF or ClonaCell™-CHO CD?

My cells grow fine in ClonaCell™-CHO ACF but I do not see colony growth in ClonaCell™-CHO CD. Why?

What medium do you recommend for the expansion of clones after selection in ClonaCell™-CHO ACF or ClonaCell™-CHO CD?

How many cells should I plate for cloning in ClonaCell™-CHO CD?

Is the serum in ClonaCell™-TCS medium heat inactivated?

Is there any IgG in ClonaCell™ TCS?

Can ClonaCell™-TCS be used with any cell line?

Request Pricing

更多信息

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