1. Examine all flasks by inverted-phasemicroscopy. Cultures used for preservation should be grown free of antibiotics, show no signs of microbial contamination and should be subconfluent (confluent cultures may be less amenable to freezing).2. Remove the growth medium and wash twice in PBS (B0.1 ml cm2).3. Add prewarmed (37 1C) trypsin solution (0.5 ml per 25 cm2) to cover the cell monolayer, recap the flask and incu......阅读全文
常规操作(主要内容如下)· Aseptic Technique· Culture Ves
人胚肾 293 (HEK293) 细胞在重组蛋白表达中是最常见的宿主细胞。 这类细胞能够表达大量的膜蛋白,如 G 蛋白偶联受体 (GPCR) ,是无法在最常见的生物制药生产宿主,如:中国仓鼠卵巢 (CHO) 细胞中作表达。 HEK293 虽然是蛋白表达的极好宿主,然而 H
实验概要Central neurons lose the ability for axonal regrowth during development and typically do not regenerate their axons following axotomy once the
AimThe protocol below describes the use of passive methods involving an electric -80ºC freezer for the cryopreservation of cell cultures. ECACC routin
The plasticity of differentiated adult cells could have a great therapeutic potential, but at the same time, it is characteristic of progression of se
This workbook was developed for use with Module 2 of the InVitro Insights Cell Culture Training Program, developed by Becton Dickinson. The
人胚肾 293 (HEK293) 细胞在重组蛋白表达中是最常见的宿主细胞。 这类细胞能够表达大量的膜蛋白,如 G 蛋白偶联受体 (GPCR) ,是无法在最常见的生物制药生产宿主,如:中国仓鼠卵巢 (CHO) 细胞中作表达。 HEK293 虽然是蛋白表达的极好宿主,然而 H
Method: Maintaining Lymphoblastoid Cell LinesJune 10, 1990Rosalie VeilePurpose:To grow lymphoblastoid cells for permanent storage and for DNA extracti
Seeding After cells are thawed:NOTE: Do not dispense the entire contents of the cryovial into one T-25 flask!!Remove the cap, being car
Cytokine BioassaysIntroductionBiological activity of cytokines and their concentrations are commonly measured by cellular proliferation of primary cel
Introduction Multi-cellular populations are fundamentally driven by the collective properties of individual cells. However, our unde
Originally described in 1979 and more recently modified by Stamer et al primary trabecular monolayer cell culture has been a cornerstone for inves
实验概要This protocol is intended for activation and expansion of human Treg cells isolated with the Dynal® CD4 CD25 Treg Kit (Cat. no. 113.23D). The exp
Hemacytometer Reference Figure 15.Determine the Cell Count.a. Calculate the total cells counted in the four corner squares.1) If the to
AimDNA staining methods such as Hoechst staining techniques are quick with results available within 24 hours, which compares favorably with 4 weeks fo
MTT Assay on Reattached CellsAs seen in Fig. 2 , the proportion of viable MSC that re-attached was significantly higher (p
I. Purpose:A. Samples of solid tumors or lymph nodes may be sent from patients with cancer. These samples should be processed directly and also set up
We use feeder-independent ES cell lines derived from the 129/Ola strain of mice (Nichols et al., Development 110, p.1341, 1990). These cells are easy
实验概要 Electrocompetent bacteria are prepared by growing cultures to mid-log phase, washing the bacteria extensively at l
Method: Cell Counts Using a HemacytometerJune 1, 1990Rosalie VeilePurpose:The purpose of this procedure is to determine the cell density of the cultur
AbstractThe kinetic characteristics and regulation of aspartate carbamoyltransferase activity were studied in lysates and cell extracts of Helico
Lysate preparation and western blottingProtein lysates were created by harvesting the cells from confluent T-flasks or from suspension cultures at h
Method: Preparation of Lymphoblastoid Cell Lines for Long Term StorageMay 30, 1990Rosalie VeilePurpose:To store cell lines in a form that will insure
Method: Lymphocyte TransformationMay 30, 1990Rosalie VeilePrinciple:Lymphocytes are transformed to establish cell lines. Mononuclear cells (lymphocyte
可靠的CCCadvanced FN1无异源耗材支持人间充质干细胞扩增表达Reliable and Robust Animal-Component-Free hMSC-BM Expansion on Ready-to-Use Eppendorf CCCadvanced™ FN1 Motifs Surf
Stem cell differentiation assaysAdMSCs were harvested from both shake and spinner flasks into 50 ml tubes. Once the microcarrier beads settled to the
Pancreatic stellate cells (PaSCs or PSCs) are myofibroblast-like cells found in the areas of the pancreas that have exocrine function. PaSCs
DescriptionCytotoxic activities of mNK cells are examined in 51Cr release assay from target cells ProcedureEffector cells (mNK cells) are seeded
Metabolic biotinylation of mammalian cell receptors for imagingBakhos A. Tannous , btannous@hms.harvard.edu, Massachusetts General Hospital and Harvar
AimAdherent cell lines will grow in vitro until they have covered the surface area available or the medium is depleted of nutrients. At this point the