Human IL-2 ELISpot Kit

Catalog #: EL202
3 Citations Datasheet / COA / SDS

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XEL202
EL202

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Citations (3)

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Summary Product Datasheets Preparation and Storage Background

Human IL-2 ELISpot Kit Summary

Assay Type

Quantitative Sandwich ELISA

Format

96-well PVDF-backed microplate

Assay Length

3 hours 15 mins to 4 hours 30 mins*

Sample Type

Whole Cells

Specificity

Please see the product datasheet

* Provided that the recommended microplates, buffers, diluents, substrates and solutions are used, and the assay is run as summarized in the Assay Procedure provided.

PRODUCT SUMMARY
ELISpot kits are highly sensitive, microplate-based assays for the detection of cytokine secreting cells. This kit is designed for the detection and enumeration of human IL-2. Complete ELISpot kits are ready-to-run and require no assay development or refinement.

This ELISpot assay employs a capture antibody specific for human IL-2, pre-coated onto a PVDF-backed microplate. Appropriately stimulated cells are pipetted directly into the wells and the immobilized antibody in the immediate vicinity of the secreting cells binds secreted human IL-2. Following wash steps and incubation with a biotinylated detection antibody, alkaline-phosphatase conjugated to streptavidin is added. Unbound enzyme is subsequently removed by washing and a substrate solution (BCIP/NBT) is added. A blue-black colored precipitate forms at the sites of cytokine localization and appears as spots, with each individual spot representing an individual human IL-2 secreting cell. The spots can be counted with an automated ELISpot reader system or manually using a stereomicroscope.

PRODUCT FEATURES

Detect and quantitate individual cells secreting human IL-2
High sensitivity - ELISpot assays can measure responses with frequencies well below 1 in 100,000 cells
No in vitro expansion of cells required
High-throughput - ELISpot assays use only a small number of primary cells

KIT CONTENTS

Biotinylated Detection Antibody
Streptavidin conjugated to Alkaline Phosphatase
Dilution Buffers
Wash Buffer Concentrate
BCIP/NBT Chromogen
Human IL-2 Positive Control

OTHER REAGENTS REQUIRED

Pipettes and pipette tips
Deionized or distilled water
Squirt bottle, manifold dispenser, or automated microplate washer
500 mL graduated cylinder
37 °C CO₂ incubator
Sterile culture media
Dissection microscope or an automated ELISpot reader

Product Datasheets

Product Datasheet

COA

SDS

Preparation and Storage

Shipping

The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.

Stability & Storage

Store the unopened product at 2 - 8 °C. Do not use past expiration date.

Background: IL-2

IL-2 (Interleukin 2) is a critical cytokine in T cell biology. It promotes T cell activation and expansion, the development, maintenance and function of regulatory T cells (Treg), and the differentiation of CD8+ T cells into terminal effector cells and memory cells. IL-2 signals through a receptor complex composed of CD25/IL-2 R alpha, IL-2 R beta, and the Common gamma Chain (gamma c). IL-2 R beta is also a component of the IL-15 receptor complex. Gamma c is also a signaling subunit in the receptors for IL-4, -7, -9, -15, and -21.

Long Name:

Interleukin 2

Entrez Gene IDs:

3558 (Human); 16183 (Mouse); 116562 (Rat); 396868 (Porcine); 280822 (Bovine); 403989 (Canine); 100034204 (Equine); 751114 (Feline); 100302458 (Rabbit)

Alternate Names:

Aldesleukin; IL2; IL-2; IL-2lymphokine; interleukin 2; interleukin-2; involved in regulation of T-cell clonal expansion; Proleukin; T cell growth factor; T-cell growth factor; TCGF

⚠ WARNING: This product can expose you to chemicals including methanol, which is known to the State of California to cause reproductive toxicity with developmental effects. For more information, go to www.P65Warnings.ca.gov.

Citations for Human IL-2 ELISpot Kit

R&D Systems personnel manually curate a database that contains references using R&D Systems products. The data collected includes not only links to publications in PubMed, but also provides information about sample types, species, and experimental conditions.

3 Citations: Showing 1 - 3
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Anti-Tat immunity defines CD4+ T-cell dynamics in people living with HIV on long-term cART
Authors: A Tripiciano, O Picconi, S Moretti, C Sgadari, A Cafaro, V Francavill, A Arancio, G Paniccia, M Campagna, MR Pavone-Cos, L Sighinolfi, A Latini, VS Mercurio, MD Pietro, F Castelli, A Saracino, C Mussini, GD Perri, M Galli, S Nozza, F Ensoli, P Monini, B Ensoli
EBioMedicine, 2021-04-07;0(0):103306.
Species: Human
Sample Types: Whole Cells
Human bronchial intraepithelial T cells produce interferon-gamma and stimulate epithelial cells.
Authors: Hirosako S, Goto E, Fujii K, Tsumori K, Hirata N, Tsumura S, Kamohara H, Kohrogi H
Clin. Exp. Immunol., 2008-11-26;155(2):266-74.
Species: Human
Sample Types: Whole Cells
A multidonor ELISPOT study of IL-1 beta, IL-2, IL-4, IL-6, IL-13, IFN-gamma and TNF-alpha release by cryopreserved human peripheral blood mononuclear cells.
Authors: Bailey T, Stark S, Grant A, Hartnett C, Tsang M, Kalyuzhny A
J. Immunol. Methods, 2002-12-15;270(2):171-82.
Species: Human
Sample Types: Whole Cells