Skip to Content
MilliporeSigma
  • Scrutinizing calcium flux oscillations in T lymphocytes to deduce the strength of stimulus.

Scrutinizing calcium flux oscillations in T lymphocytes to deduce the strength of stimulus.

Scientific reports (2015-01-15)
Susan N Christo, Kerrilyn R Diener, Robert E Nordon, Michael P Brown, Hans J Griesser, Krasimir Vasilev, Farid C Christo, John D Hayball
ABSTRACT

The capture and activation of individual T cells on functionalised surfaces enables real-time analyses of the magnitude and rhythm of intracellular calcium release. Application of Haarlet transformations generate a calcium flux 'threshold', with the frequency of the 'threshold crossings' correlating with the strength of the original T cell stimulus. These findings represent a new method to evaluate graduations in T cell activation in real time, and at a single-cell level.

MATERIALS
Product Number
Brand
Product Description

SAFC
HEPES
Sigma-Aldrich
HEPES, BioUltra, for molecular biology, ≥99.5% (T)
Sigma-Aldrich
Propionaldehyde, ≥97%, FG
Sigma-Aldrich
HEPES, BioXtra, pH 5.0-6.5 (1 M in H2O), ≥99.5% (titration)
Sigma-Aldrich
HEPES, BioXtra, suitable for mouse embryo cell culture, ≥99.5% (titration)
Sigma-Aldrich
HEPES, BioPerformance Certified, ≥99.5% (titration), suitable for cell culture
Sigma-Aldrich
HEPES, ≥99.5% (titration)
SAFC
HEPES
Supelco
Propionaldehyde, analytical standard
Sigma-Aldrich
HEPES, anhydrous, free-flowing, Redi-Dri, ≥99.5%
Supelco
HEPES, Pharmaceutical Secondary Standard; Certified Reference Material
Sigma-Aldrich
Propionaldehyde, reagent grade, 97%
Supelco
L-Glutamine, certified reference material, TraceCERT®, Manufactured by: Sigma-Aldrich Production GmbH, Switzerland
Sigma-Aldrich
L-Glutamine
Sigma-Aldrich
Iodoacetamide, Vetec, reagent grade, 98%
SAFC
Iodoacetamide
Sigma-Aldrich
L-Glutamine, BioUltra, ≥99.5% (NT)
Sigma-Aldrich
HEPES buffer solution, 1 M in H2O
Sigma-Aldrich
Iodoacetamide, ≥99% (NMR), crystalline
Sigma-Aldrich
Iodoacetamide, Single use vial of 56 mg
SAFC
L-Glutamine
Sigma-Aldrich
L-Glutamine
Sigma-Aldrich
L-Glutamine, γ-irradiated, BioXtra, suitable for cell culture
Sigma-Aldrich
Iodoacetamide, BioUltra
Sigma-Aldrich
L-Glutamine, meets USP testing specifications, suitable for cell culture, 99.0-101.0%, from non-animal source
Supelco
L-Glutamine, Pharmaceutical Secondary Standard; Certified Reference Material