I need to use a dead cell control for my viability assay. Do you have a protocol for killing cells for this?
Heat killing is commonly used. Place your cells in a tube in buffer and heat at 60oC for 20 minutes. You can also kill your cells by fixing them with ice cold 70% ethanol for 15 minutes. The ethanol-killed cells can then be stored at -20oC until needed, at which point you wash out the ethanol and replace with buffer.
Can I use the LIVE/DEAD Cell Imaging Kit (488/570) (Cat. No. R37601) with fixed cells?
The LIVE/DEAD Cell Imaging Kit (488/570) (Cat. No. R37601) is used for identifying live and dead cells using fluorescence-based staining. It cannot be used with fixed cells.
What is the composition of the Live Green (Component A) of the LIVE/DEAD Cell Imaging Kit (488/570) (Cat. No. R37601)?
The formulation of the solution as well as the amount and concentration of Calcein, AM provided in the LIVE/DEAD Cell Imaging Kit (488/570) (Cat. No. R37601) is proprietary information.
Is the LIVE/DEAD Cell Imaging Kit (488/570) (Cat. No. R37601) only a one-time use or is there a way to aliquot and freeze it down?
Once the Live Green (Component A) and Dead Red (Component B) are mixed, this solution should be used immediately for one-time use and should not be stored.
A novel microfluidic platform for high-resolution imaging of a three-dimensional cell culture under a controlled hypoxic environment.
Authors:Funamoto K, Zervantonakis IK, Liu Y, Ochs CJ, Kim C, Kamm RD,
Journal:Lab Chip
PubMed ID:23023115
'Low oxygen tensions experienced in various pathological and physiological conditions are a major stimulus for angiogenesis. Hypoxic conditions play a critical role in regulating cellular behaviour including migration, proliferation and differentiation. This study introduces the use of a microfluidic device that allows for the control of oxygen tension for the ... More
Saikosaponin-d Enhances the Anticancer Potency of TNF-a via Overcoming Its Undesirable Response of Activating NF-Kappa B Signalling in Cancer Cells.
Authors:Wong VK, Zhang MM, Zhou H, Lam KY, Chan PL, Law CK, Yue PY, Liu L,
Journal:Evid Based Complement Alternat Med
PubMed ID:23573150
'Tumor necrosis factor-alpha (TNF- a ) was reported as anticancer therapy due to its cytotoxic effect against an array of tumor cells. However, its undesirable responses of TNF- a on activating NF- ? B signaling and pro-metastatic property limit its clinical application in treating cancers. Therefore, sensitizing agents capable of ... More
Aryl hydrocarbon receptor protects against bacterial infection by promoting macrophage survival and reactive oxygen species production.
Authors:Kimura A, Abe H, Tsuruta S, Chiba S, Fujii-Kuriyama Y, Sekiya T, Morita R, Yoshimura A,
Journal:
PubMed ID:24343818
'Aryl hydrocarbon receptor (AhR) is crucial for various immune responses. The relationship between AhR and infection with the intracellular bacteria Listeria monocytogenes (LM) is poorly understood. Here, we show that in response to LM infection, AhR is required for bacterial clearance by promoting macrophage survival and reactive oxygen species (ROS) ... More
Circulating fibrocytes stabilize blood vessels during angiogenesis in a paracrine manner.
Authors:Li J, Tan H, Wang X, Li Y, Samuelson L, Li X, Cui C, Gerber DA,
Journal:
PubMed ID:24300950
'Accumulating evidence supports that circulating fibrocytes play important roles in angiogenesis. However, the specific role of fibrocytes in angiogenesis and the underlying mechanisms remain unclear. In this study, we found that fibrocytes stabilized newly formed blood vessels in a mouse wound-healing model by inhibiting angiogenesis during the proliferative phase and ... More
Characterizing natural hydrogel for reconstruction of three-dimensional lymphoid stromal network to model T-cell interactions.
Authors:Kim J, Wu B, Niedzielski SM, Hill MT, Coleman RM, Ono A, Shikanov A,
Journal:
PubMed ID:25649205
'Hydrogels have been used in regenerative medicine because they provide a three-dimensional environment similar to soft tissues, allow diffusion of nutrients, present critical biological signals, and degrade via endogenous enzymatic mechanisms. Herein, we developed in vitro system mimicking cell-cell and cell-matrix interactions in secondary lymphoid organs (SLOs). Existing in vitro ... More