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Immunohistochemistry Services

Work with LifeSpan to design a custom immunohistochemistry to address your specific biological question. Outsource the entire localization process without having to worry about finding and characterizing target specific antibodies, sourcing and validating difficult-to-find tissues, and having the ability to interpret the resulting immunostaining in relation to complex human pathologies.

TCR Screening Services

Test your therapeutic antibodies in immunohistochemistry against a broad panel of normal frozen human tissue types in order to determine potential unintended binding. Our non-GLP TCR services are designed on the FDA recommendation outlined in their "Points to Consider in the Manufacture and Testing of Monoclonal Antibody Products for Human Use".

Research Areas
Cell Cycle Pathways
Protein Family And Group
Infectious Disease
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Catalog Number Size Price
LS-K413-500 500 asy $445 
Assay Kit

LDH-Cytotoxicity Assay Kit II (Colorimetric) - LS-K413

LDH-Cytotoxicity Assay Kit II (Colorimetric) - LS-K413

Available for shipment within the USA only
Description:
Cell death or cytotoxicity is classically evaluated by the quantification of plasma membrane damage. Lactate dehydragenase (LDH) is a stable enzyme, present in all cell types, and rapidly released into the cell culture medium upon damage of the plasma membrane. LDH, therefore, is the most widely used marker in cytotoxicity study. The LDH Cytotoxicity Assay Kit II utilizes the advanced WST reagent for a fast and more sensitive detection of LDH released from damaged cells. The assay utilizing an enzymatic coupling reaction: LDH oxidizes lactate to generate NADH, which then reacts with WST to generate yellow color. The intensity of the generated color correlates directly with the cell number lysed. Since WST is brighter, less amount of culture medium is required for the assay, and thus the background from serum and culture medium is significantly reduced. Using the assay, cells can be cultured in regular 10% serum containing medium, no reducing serum or special medium is required for the assay. In addition, since the WST is more stable, the reaction can be read multiple times, and can also be stopped at any time point during the reaction. LDH activity can be easily quantified by spectrophotometer or plate reader at OD450 nm. The kit provides all necessary reagents including LDH positive control. Assay takes less than 1 hour.
Price
Catalog Number
$445 
LS-K413-500
500 asy

Available for shipment within the USA only
Toll Free North America
866-819-4732

Overview

Description:
Cell death or cytotoxicity is classically evaluated by the quantification of plasma membrane damage. Lactate dehydragenase (LDH) is a stable enzyme, present in all cell types, and rapidly released into the cell culture medium upon damage of the plasma membrane. LDH, therefore, is the most widely used marker in cytotoxicity study. The LDH Cytotoxicity Assay Kit II utilizes the advanced WST reagent for a fast and more sensitive detection of LDH released from damaged cells. The assay utilizing an enzymatic coupling reaction: LDH oxidizes lactate to generate NADH, which then reacts with WST to generate yellow color. The intensity of the generated color correlates directly with the cell number lysed. Since WST is brighter, less amount of culture medium is required for the assay, and thus the background from serum and culture medium is significantly reduced. Using the assay, cells can be cultured in regular 10% serum containing medium, no reducing serum or special medium is required for the assay. In addition, since the WST is more stable, the reaction can be read multiple times, and can also be stopped at any time point during the reaction. LDH activity can be easily quantified by spectrophotometer or plate reader at OD450 nm. The kit provides all necessary reagents including LDH positive control. Assay takes less than 1 hour.

Specifications

Name
LDH-Cytotoxicity Assay Kit II (Colorimetric)
Type
Cytotoxicity Assay
Usage
This assay provides a convenient and Wst-based non-radioactive assay for measurement of activity of lactate dehydrogenase (LDH) which is a stable enzyme normally found in the cytosol of all cells but rapidly releases into the supernatant upon damage of plasma membrane.
Target
Cell Viability
Detection
Colorimetric (450 nm Absorbance)
Species Reactivity
Mammal
Components
  • WST Substrate Mix
  • LDH Assay Buffer
  • Cell Lysis Solution
  • Stop Solution
  • LDH (0.1 µg/ml)
  • (See Datasheet for specific volumes supplied)
  • Applications
    Spectrophotometry (visible)
    Equipment
    Microplate spectrophotometer (visible), Spectrophotometer (visible)
    Conditions
    Shipped -20°C Dry Ice, Store at -20°C. Avoid freeze-thaw cycles, 12 months shelf life.
    Documents
    Restrictions
    For research use only. Available for shipment within the USA only
    Guarantee
    This Assay Kit carries the LSBio 100% Guarantee
    Product Features
    • Fast and convenient
    • Simple one-step procedure
    • Takes ~1 hour

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    Requested From: United States
    Date Requested: 2/26/2020