Rat IL-2 ELISpot Kit (CAT#: ITS-0322-P154)

1 Kit (also 1 Pack (6 Plates))

1.Rat IL-2 Microplate.
2.Biotinylated Detection Antibody.
3.Streptavidin conjugated to Alkaline Phosphatase.
4.Dilution Buffers.
5.Wash Buffer Concentrate.
6.BCIP/NBT Chromogen.
7.Rat IL-2 Positive Control.

1.Pipettes and pipette tips.
2.Deionized or distilled water.
3.Squirt bottle, manifold dispenser, or automated microplate washer.
4.500 mL graduated cylinder.
5.37 °C CO2 incubator.
6.Sterile culture media.
7.Dissection microscope or an automated ELISpot reader.

100 µL

3 hours 15 mins to 4 hours 30 mins*

Pre-coated

1.Wash Buffer - If crystals have formed in the concentrate, warm to room temperature and mix gently until the crystals have completely dissolved. To prepare Wash Buffer, add 50 mL of Wash Buffer Concentrate to 450 mL of deionized water and mix well.
2.Rat IL-2 Positive Control - Reconstitute the lyophilized Rat IL-2 Positive Control with 250 μL of culture medium that is used to incubate cells.
3.Detection Antibody Mixture - Tap or vortex the vial to release reagent collected in the cap. Transfer 100 μL of Rat IL-2 Detection Antibody Concentrate into the vial labeled Dilution Buffer 1 and mix well.
4.Streptavidin-AP Concentrate A - Tap or vortex the vial to release reagent collected in the cap. Transfer 100 μL of Streptavidin-AP Concentrate A into the vial labeled Dilution Buffer 2 and mix well.

1.Fill all wells in the microplate with 200μL of sterile culture media and incubate for approximately 20 minutes at room temperature.
2.When cells are ready to be plated, aspirate the culture media from the wells. Immediately add 100μL of the appropriate cells or controls to each well.
3.Incubate cells in a humidified 37°C CO2 incubator. Optimal incubation time for each stimulus should be determined by the investigator.
4.Aspirate each well and wash, repeating the process three times for a total of four washes.
5.Add 100μL of the diluted Detection Antibody Mixture into each well, and incubate overnight at 2-8°C. Alternatively, incubation with detection antibodies can be done for 2 hours at room temperature on a rocking platform.
6.Repeat the wash procedure described in step 4.
7.Add 100 μL of the diluted Streptavidin-AP Concentrate A into each well, and incubate for 2 hours at room temperature.
8.Repeat the wash procedure described in step 4.
9.Add 100μL of the BCIP/NBT Substrate into each well, and incubate for 1 hour at room temperature. Protect from light.
10.Decant the BCIP/NBT Substrate from the microplate and rinse the microplate with deionized water. Invert the microplate and tap to remove excess water. Remove the flexible plastic underdrain from the bottom of the microplate, wipe the bottom of the plate thoroughly with paper towels and dry completely either at room temperature (60-90 minutes) or 37°C (15-30 minutes).

Rat

96-well PVDF-backed microplate

Some components of this kit contain sodium azide, which may react with lead and copper plumbing to form explosive metallic azides. Flush with large volumes of water during disposal.
BCIP/NBT is toxic if swallowed, in contact with skin, or if inhaled. It is a highly flammable liquid and vapor may cause serious irritation and damage to organs. Do not eat, drink, or smoke when using this product. Do not breathe fumes. Use only in a well-ventilated area. Keep away from heat, sparks, open flames, and hot surfaces. Keep the container tightly closed.

Some components in this kit contain a preservative which may cause an allergic skin reaction. Avoid breathing mist.
Wear protective gloves, clothing, eye, and face protection. Wash hands thoroughly after handling. Refer to the SDS on our website prior to use.

Store the unopened kit at 2-8 °C.

Do not use past kit expiration date. This kit is validated for single use only.

This kit is validated for single use only. Results obtained using previously opened or reconstituted reagents may not be reliable.

For Research Grade Use Only.

TCGF; IL-2; lymphokine; Interleukin-2; Aldesleukin; T-cell growth factor

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.

116562

P17108

Among its related pathways are Allograft rejection and PEDF Induced Signaling.

1.Incubate IL-2 secreting cells in an antibody-coated well.
2.Remove cells by washing. Secreted IL-2 is captured by the immobilized antibody.
3.Incubate with biotinylated anti-IL-2 antibody.
4.Remove unbound biotinylated antibody by washing. Incubate with alkaline phosphatase conjugated streptavidin.
5.Wash to remove unbound enzyme.
6.Add substrate and monitor the formation of colored spots. Analyze using either an ELISpot reader or dissection microscope.