Storage conditions: 2°C to 8°C. Protect from light Shipping conditions: Ambient Shelf life: 12 months from date of manufacture
よくあるご質問(FAQ)
How long can I keep my media after supplementing with serum?
Generally speaking, media can be used for up to three weeks after supplementation with serum. There are no formal studies to support this, but it is the rule of thumb used by our scientists.
My medium was shipped at room temperature but it is supposed to be stored refrigerated. Is it okay?
We routinely ship media that require long-term storage in the refrigerator at room temperature. We have done studies on representative media formulations to show that media can be at room temperature for up to a week without a problem.
How can I remove mycoplasma contamination from my cell culture medium?
Very often mycoplasma contamination cannot be removed from the culture so it should be discarded. You may have a unique culture that you prefer not to discard and would like to try to clean it. Ciprofloxacin and Plasmocin have reportedly been used for this application. If interested in a protocol or directions for use, check with the antibiotic supplier or published literature. Note that mycoplasma are very difficult to remove from culture and spread easily so the treated cultures should be quarantined until clear of mycoplasma, and your laboratory should be thoroughly cleaned.
I see a decrease in growth of my culture. What should I do?
Try changing the medium or serum. Compare media formulations for differences in glucose, amino acids, and other components. Compare an old lot of serum with a new lot. Increase initial cell inoculums. Lastly, adapt cells sequentially to new medium.
My cells are not adhering to the culture vessel. What should I do?
This can occur if cells are overly trypsinized. Trypsinize for a shorter time or use less trypsin. Mycoplasma contamination could also cause this problem. Segregate your culture and test for mycoplasma infection. Lastly, check for attachment factors in the medium.
'The endothelin (ET) family of peptides acts via two subtypes of guanine nucleotide-binding regulatory protein (G protein)-coupled receptors termed ETA and ETB. ET-1 stimulated cAMP formation in Chinese hamster ovary (CHO) cells stably expressing human wild-type ETA (CHO/hETA cells) while it inhibited cAMP formation in CHO cells expressing human wild-type ... More
Molecular cloning and functional analysis of the promoter of the human squalene synthase gene.
Authors: Guan G; Jiang G; Koch R L; Shechter I;
Journal:J Biol Chem
PubMed ID:7665618
'We have cloned and characterized the 5''-flanking region of the gene encoding human squalene synthase. We report here the promoter activity of successively 5''-truncated sections of a 1 kilobase of this region by fusing it to the coding region of a luciferase reporter gene. DNA segments of 200 base pairs ... More
Identification of a minimum enhancer sequence for the type II collagen gene reveals several core sequence motifs in common with the link protein gene.
Authors: Krebsbach P H; Nakata K; Bernier S M; Hatano O; Miyashita T; Rhodes C S; Yamada Y;
Journal:J Biol Chem
PubMed ID:8626777
'The type II collagen gene (Col2a1) is expressed primarily in chondrocytes. Transcription of Col2a1 is mediated by cell-specific regulatory elements located within the promoter and first intron. Here, we map a minimal enhancer and identify elements that determine cartilage-specific Col2a1 expression by analyzing the activity of a series of chimeric ... More
Interaction between the components of the interferon gamma receptor complex.
Authors:Serguei V. Kotenko , Lara S. Izotova , Brian P. Pollack , Thomas M. Mariano , Robert J. Donnelly , Geetha Muthukumaran , Jeffry R. Cook , Gianni Garotta, Olli Silvennoinen, James N. Ihle, Sidney Pestka
Journal:J Biol Chem
PubMed ID:7673114
'Interferon gamma (IFN-gamma) signals through a multimeric receptor complex consisting of two different chains: the IFN-gamma receptor binding subunit (IFN-gamma R, IFN-gamma R1), and a transmembrane accessory factor (AF-1, IFN-gamma R2) necessary for signal transduction. Using cell lines expressing different cloned components of the IFN-gamma receptor complex, we examined the ... More
Isolation, characterization, and differentiation of human multipotent dermal stem cells.
Authors:Li L, Fukunaga-Kalabis M, Herlyn M
Journal:Methods Mol Biol
PubMed ID:23483399
Skin, as the body's largest organ, has been extensively used to study adult stem cells. Most previous skin-related studies have focused on stem cells isolated from hair follicles and from keratinocytes. Here we present a protocol to isolate multipotent neural crest stem-like dermis-derived stem cells (termed dermal stem cells or ... More