QUANSYS BIOSCIENCES Q-Plex Human Environmental Enteric Dysfunction User Manual

User Manual for QUANSYS BIOSCIENCES models including: Q-Plex, Human Environmental Enteric Dysfunction, Environmental Enteric Dysfunction, Human Enteric Dysfunction, Enteric Dysfunction, Dysfunction

Q-Plex™ Human Environmental Enteric Dysfunction (11-Plex)

For Research Use Only 1 Manufactured and Distributed by: Quansys Biosciences 365 North 600 West Logan, Utah 84321, USA TEL: (888) 782-6797 E-MAIL: INFO@QUANSYSBIO.COM

File Info : application/pdf, 20 Pages, 232.23KB

569817HU Human-Environmental-Enteric-Dysfunction-11-Plex-Manual-1-1-03-21-lr

Q-PlexTM Human Environmental Enteric Dysfunction (11-Plex)
For Research Use Only Version 1.1 Not For Use In Diagnostic Procedures

TABLE OF CONTENTS

Name and Intended Use Principle of the Assay Sample Collection and Storage Important Precautions Do Do Not Kit Contents, Preparation, & Storage Other Required Materials: Instruments and Accessories Assay Preparation Assay Procedure Analyzing a Q-PlexTM Image Appendix A: Plate Washing Methods
Automated Wash Method Multichannel Pipette Wash Method Abbreviated Protocol Plate Diagram Notes

Symbol

Explanation Catalog Number Lot Number Use By YYYY-MM-DD Temperature Limitation Manufacturer Keep Away From Sunlight

Manufactured and Distributed by: Quansys Biosciences
365 North 600 West Logan, Utah 84321, USA TEL: (888) 782-6797
E-MAIL: INFO@QUANSYSBIO.COM

For Research Use Only

For International Distributors see: http://www.quansysbio.com/distributors

2 2 4 4 5 5 6 7 8 8 11 12 12 13 14 15 16
1

NAME AND INTENDED USE
Q-PlexTM Human Environmental Enteric Dysfunction (11-Plex) Quansys Biosciences Catalog Number 569849HU
The Q-Plex Human Environmental Enteric Dysfunction (11-Plex) is a quantitative chemiluminescent ELISA allowing concurrent measurement in serum and heparin plasma samples of IGF-1, FGF-21, IFABP, Ferritin, HRP2, sTfR, Thyroglobulin, AGP, CRP, CD-14 and RBP4 biomarkers.

PRINCIPLE OF THE ASSAY

This multiplex assay is based on the microplate sandwich enzyme immunoassay technique for the measurement of IGF-1, FGF-21, IFABP, Ferritin, HRP2, sTfR and Thyroglobulin and the microplate competitive enzyme immunoassay technique for the measurement of AGP, CRP, CD-14 and RBP4.
The IGF-1, FGF-21, IFABP, Ferritin, HRP2, sTfR and Thyroglobulin assays use two different antibodies specific for their respective targets. Samples or calibrators are pipetted into wells of a microplate arrayed with analyte specific antibodies that capture IGF-1, FGF-21, IFABP, Ferritin, HRP2, sTfR and Thyroglobulin, thereby immobilizing IGF-1, FGF-21, IFABP, Ferritin, HRP2, sTfR and Thyroglobulin to their locations in the array. After washing away any unbound protein, a mixture that contains biotinylated analyte specific antibodies is added. The biotinylated antibodies complete the sandwich for each specific arrayed analyte. After washing away unbound biotinylated antibody, streptavidin-horseradish peroxidase (SHRP) is added. Following an additional wash, the amount of SHRP remaining on each location of the array is proportional to the amount of IGF-1, FGF-21, IFABP, Ferritin, HRP2, sTfR and Thyroglobulin initially captured.
The AGP, CRP, CD-14 and RBP4 assays use an antibody specific for their respective targets. Samples or calibrators are pipetted into wells of a microplate arrayed with immobilized analyte specific antibodies that capture AGP, CRP, CD-14 and RBP4. During the sample incubation, AGP, CRP, CD-14 and RBP4 present in a sample competes with a fixed amount of biotin-labeled AGP, CRP, CD-14 and RBP4 for sites on the immobilized antibody. This is followed by a wash to remove excess biotin-labeled AGP, CRP, CD-14 and RBP4

For Research Use Only

and unbound protein. At this point of the multiplex protocol, the competitive assays act as spectators during the biotinylated antibody incubation step of the sandwich assays. After washing away unbound biotinylated antibody, SHRP is added. Following an additional wash, the amount of SHRP remaining on each location of the array is inversely proportional to the amount of AGP, CRP, CD-14 and RBP4 initially present in a sample.
The amount of conjugated enzyme on each location of the array is measured with the addition of a chemiluminescent substrate.
Assay Ranges

AGP CRP Ferritin FGF-21 HRP2 IFABP IGF-1 RBP4 sCD-14 sTfR Tg

Units
g/L mg/L g/L pg/mL g/L pg/mL ng/mL mol/L ng/mL mg/L g/L

Sample Range of Quantification*
0.36 - 0.0015 5.61 - 0.008 115 - 0.16 800 - 0.11 0.96 - 0.0013 3000 - 4.1 198 - 0.27 1.4 - 0.006 1750 - 2.4 107.53 - 0.15 13.7 - 0.019

* Based on a 1:10 sample dilution ** Actual values may vary from kit to kit. Please see the Product Card included
in your kit for specific values.

For Research Use Only

SAMPLE COLLECTION AND STORAGE
The sample collection and storage conditions are intended as general guidelines. Sample stability has not been evaluated.
Serum - Use a serum separator tube (SST) and allow samples to clot for 30 minutes before centrifugation for 15 minutes at 1000 x g. Remove serum and assay immediately or aliquot and store samples at -20°C. Avoid repeated freeze-thaw cycles.
Plasma - Collect plasma using heparin as an anticoagulant. Centrifuge for 15 minutes at 1000 x g within 30 minutes of collection. Assay immediately or aliquot and store samples at -20 °C. Avoid repeated freeze-thaw cycles.
IMPORTANT PRECAUTIONS
1. Read all instructions before beginning test.
2. For research use only. Not for use in diagnostic procedures.
3. The kit should not be used beyond the expiration date on the kit label.
4. If running multiple kits, a calibration curve must be included for each 96-well plate. The curve from one plate cannot be used to calculate sample values from other plates.
5. Do not mix or substitute reagents with those from other kits or lots.
6. All products are carefully validated, however due to the variability encountered in biological buffers and sample matrices, the possibility of interference or sample matrix effects cannot be excluded.
7. Warning: The calibrator contains components of human origin. These components have been tested at the donor level and found negative for HBsAg, HIV-1 and HIV-2 antibodies, and HCV. However, consider all materials as potentially infectious and use only approved guidelines for the proper handling and disposal of infectious material.

For Research Use Only

DO
· Do set up and practice using the Q-ViewTM Imager Pro or Q-ViewTM Imager LS before starting the assay.
· Do be exact when setting shaker speed to 500 RPM.
· Do dilute all samples at least 1:10 (one part sample to nine parts diluent) with the provided sample diluent to prevent false positives, and mix thoroughly.
· Do pre-wet pipette tips three times by drawing up the liquid into the pipette and then dispensing back into the original vessel prior to the addition of samples or calibrators to the microplate.
· Do load all calibrators and samples into the microplate within five minutes of each other.
· Do be exact with incubation times, particularly the streptavidinhorseradish peroxidase (SHRP) incubation.
· Do be exact when mixing Substrate A and B2 and mix thoroughly.
DO NOT
· Do not allow the plate to dry out between steps.
· Do not allow the substrate or SHRP to be exposed to UV light, as this may degrade it.

For Research Use Only

KIT CONTENTS, PREPARATION, & STORAGE
Unopened Kit - Store at 2-8°C. Do not use past kit expiration date. Do not re-use the kit.

Part/Description

Storage of opened/reconstituted material

Q-PlexTM Array Microplate Arrayed and blocked 96-well polystyrene microtiter plate

Wash Buffer Concentrate (20X) Liquid, 50 mL/vial of a concentrated solution of
buffered surfactant

Sample Diluent Liquid, 10 mL/vial of a buffered protein solution with heterophilic antibody and rheumatoid factor blockers and preservatives

2-8°C until kit expiration

Competitor Lyophilized, biotinylated competitive antigen

Detection Mix Liquid, 6 mL/vial of biotinylated antibodies in a buffered protein solution with preservatives

Calibrator
Lyophilized, recombinant antigens in a buffered protein base

Store at -20°C until use Discard unused reconstituted calibrator.

Streptavidin-HRP 1X Liquid, 6 mL/vial of streptavidin-conjugated
horseradish peroxidase

Do not expose to UV light. 2-8°C until kit expiration

Substrate A Liquid, 3 mL/vial of stabilized hydrogen peroxide
Substrate B2 Liquid, 3 mL/vial of stabilized signal enhancer

Do not expose to UV light. Store mixed
substrate solution at room temperature (20-25°C) for up to 1 week. Store unmixed solutions at 2-8°C until kit expiration.

Plate Seals (3) Adhesive strips

Non-perishable

For Research Use Only

OTHER REQUIRED MATERIALS: INSTRUMENTS AND ACCESSORIES
In addition to the kit contents listed, the following materials are required to run this assay.
1. Multichannel pipette (20-200 L) and/or single channel pipettes (2-1000 L) and tips
2. Polypropylene tubes or polypropylene 96-well plate(s) for sample and calibrator preparation
a. Recommended: Nunc® MicroWellTM 96-Well Plates, Polypropylene, 249944; Eppendorf® LoBind Protein or Genomic Microcentrifuge Tubes, 022431102
3. Q-ViewTM Imager and Software
4. Microplate shaker
a. For example: Barnstead/labline 4625 titer plate shaker, IKA MTS 2/4 for 2 or 4 microtiter plates, or equivalent, capable of 500 RPM.
5. Deionized water
6. Microplate washer (An optional multichannel pipette protocol is provided in Appendix A)
7. One liter graduated cylinder for the preparation of wash buffer

For Research Use Only

ASSAY PREPARATION
1. Install the Q-ViewTM Software on the computers that will be used for analysis or operating a Q-View Imager Pro or Q-View Imager LS.
2. Set up the imager. For imager-specific instructions, see www.quansysbio.com/manuals.
3. Set the plate shaker to 500 RPM.
4. Prepare the Wash Buffer: Place 50 mL of the 20X concentrate into 950 mL deionized water, and mix thoroughly.
5. Prepare Sample Diluent: Add 1 mL of Sample Diluent to Competitor Mix. Allow Competitor to sit for 5 minutes. Mix thoroughly. Return the 1 mL back into the remaining 9 mL vial of Sample Diluent. Mix thoroughly.
6. Prepare Calibrator: Reconstitute using Sample Diluent containing competitor with the volume on the Product Card which accompanies the kit. Allow Calibrator to sit for 5 minutes. Mix thoroughly. Use calibrator within 30 minutes of reconstitution.
7. Allow Substrate A and B2 to come to room temperature (20-25°C). Fifteen minutes prior to use, combine 3 mL of Substrate A with 3 mL of Substrate B2, and mix gently. Do not expose to UV light. Store at room temperature (20-25°C) after mixing.
ASSAY PROCEDURE
Allow all reagents to equilibrate to room temperature (20-25°C) before use and prepare as directed by the previous sections. It is recommended that all calibrators, samples, and controls be assayed in duplicate.
1. Using the previously reconstituted calibrator, prepare an 8-point calibration curve (7 points plus 1 blank) in either polypropylene tubes or a polypropylene 96-well plate.
a. Pipette 200 L of prepared calibrator into the first tube or well.

For Research Use Only

b. Place 120 L of prepared sample diluent into the other seven tubes or wells.

c. Transfer 60 L of the undiluted prepared calibrator from the first tube into the second, mix thoroughly, and repeat the transfer from tube to tube for 5 more points, leaving the last tube without any prepared calibrator. This process is diagrammed below. The undiluted prepared calibrator serves as the high point of the standard curve. The prepared sample diluent serves as the negative.

60 L

200 L

1:3 120 L

1:9 120 L

1:27 120 L

1:81 120 L

1:243 120 L

1:729 120 L

Calibrator

Sample Diluent

2. Prepare plasma samples by diluting 1:10 (one part sample to nine parts prepared sample diluent) with enough prepared sample diluent to have 50 L per well in either polypropylene tubes or a polypropylene 96-well plate.
Note: If you anticipate that your analyte concentrations will be greater than the high point of the calibration curve as reported on the product card included in the kit, use the prepared sample diluent to dilute your samples further.
3. Add 50 L per well of the calibration curve and samples by pre-wetting the pipette tips three times, drawing up the liquid into your pipette and then dispensing back into the original vessel, aspirating 50 L and dispensing into the Q-PlexTM Array 96-well plate. Load all samples and calibration curve to the plate within five minutes.
4. Cover the plate with a plate seal provided, and shake on a plate shaker set to 500 RPM for two hours at room temperature (20-25°C).
5. Wash the plate three times (see Appendix A).

For Research Use Only

6. Add 50 L per well of Detection Mix, cover with a new plate seal, and return to the plate shaker set to 500 RPM for one hour at room temperature (20-25°C).
7. Wash the plate three times (see Appendix A).
8. Add 50 L per well of Streptavidin-HRP 1X, cover with a new plate seal, and return to the plate shaker set to 500 RPM for 20 minutes at room temperature (20-25°C).
9. Wash the plate six times (see Appendix A).
10. Add 50 L per well of previously prepared substrate. Wait no longer than 5 minutes to commence imaging.
Note: If imaging cannot commence immediately, protect the plate from drying for up to 15 minutes by dispensing 100 L of wash buffer into each well of the plate prior to adding the mixed substrate. When ready to image, remove the wash buffer from the plate and add the substrate.
11. Place the plate in the Q-View Imager Pro or Q-View Imager LS.
12. Open Q-View Software, create or open a project, and click Acquire Image.
13. When using a Q-View Imager Pro, set the exposure time to 300 seconds. When using a Q-View Imager LS, set the exposure time to 270 seconds and standard image processing.
14. Click the Capture Image(s) button. Users may continue to Well Assignment while images are being captured.
Note: Details about these imaging steps are available in the Q-ViewTM Software Manual viewable at www.quansysbio.com/manuals or within Q-View Software under Support > Manual.
15. Dispose of all used and unused materials. Disposal of waste may differ from region to region. Please refer to local disposal rules.

For Research Use Only

ANALYZING A Q-PLEXTM IMAGE
The following summarizes a general workflow for analyzing a Q-Plex image in Q-View Software. Each of these steps is described in greater detail in the Q-View Software and Imager Manual, viewable at www.quansysbio.com/ manuals, or within Q-View Software under Support > Manual.
1. Acquire or import an image into Q-View Software as previously described.
2. Enter the Product Code (found on the Product Card) into the Product Code field of the software.
3. Image Processing: Align the plate overlay as follows:
a. Set the overlay: If using the Auto-Set Plate Overlay feature, this will occur automatically. Otherwise, go to Overlay Options > Set Plate Overlay.
b. To visualize bright or dim spots, optimize the display using Image Options > Adjust Gamma (does not affect the data).
c. Optimize overlay alignment: Go to Overlay Options > Adjust Plate Overlay to pivot the overlay, Adjust Well and Adjust Spot to move individual wells and spots, then Auto-Adjust Spots to automatically snap each circle of the overlay to the nearest spot of the image beneath.
4. Well Assignment: Label wells as samples, controls, calibrators, or negatives, and specify their dilution factors. Use Templates to quickly assign layouts that are repeated often, or export the layout as a .csv file.
5. Data Analysis: Once you have completed Image Processing and Well Assignment, select Data Analysis. Click Perform Analysis to generate charts, concentrations, and statistics based on optimal regression settings provided by the product definition.
Note: Tips for data analysis are available at www.quansysbio.com/ tech-tips. We take great care to ensure that customers have success using our products and services. If you have further questions about running the assay, data analysis, troubleshooting, or our products or services, please contact us at 888-QUANSYS (782-6797) or at support@quansysbio.com.

For Research Use Only

APPENDIX A: PLATE WASHING METHODS

Automated Wash Method
1. Use a program that will aspirate and dispense 300-400 L wash buffer.

Aspirate

Dispense 300 - 400 L Wash Buffer
3 to 6 Times

Aspirate

2. Ensure that the plate washer has a program that will not scratch the bottom of the microplate and will prevent plate drying. This is critical to prevent damage to the capture antibody arrays. The simplest method to avoid plate drying is to leave a small, uniform amount (1-3 L) of wash in the well after the final aspiration, and add the next reagent to the plate as quickly as possible.

3. Leaving a uniform amount of wash in the wells can be accomplished

with an automated washer by slightly increasing the aspiration height

of the washer head.

For example:

Process

Distance

Aspiration Height

3.810 mm

Aspiration Position

1.28 mm from center

Dispense Height

15.24 mm

no soak or shake cycles are needed

Steps on a Biotek ELX-405
30 -28
120

4. Connect the prepared wash buffer to your automatic plate washer.

5. Run 1-2 priming cycles to make sure that the wash buffer is running through the plate washer. When the buffer has run through the machine, the waste will be foamy.

For Research Use Only

6. To ensure that all pins are functioning, in a spare microtiter plate, dispense 100 L wash buffer and ensure that all pins dispense uniformly, then aspirate and ensure that all pins aspirate uniformly.
7. Prime the plate washer one time before the first wash step. When running the assay, perform the wash 3 or 6 times according to the protocol.
Multichannel Pipette Wash Method
1. Just prior to washing, pour the prepared wash buffer into a trough or tray.
2. After each incubation, flick the solution out of the plate over a waste container before starting the wash protocol.
3. Using a multichannel pipette, dispense 400 L of wash buffer into each of the wells used in the test.
4. Aggressively flick the wash buffer out over a waste container.
5. This washes the plate one time. When the assay procedure calls for three or six washes, repeat steps 3-4 accordingly.
6. Tap the plate upside down on a paper towel to remove any residual wash.
7. Proceed immediately to dispense the next solution so drying does not occur.

For Research Use Only

ABBREVIATED PROTOCOL
Preparation
1. Install Q-View Software (page 8).
2. Set up the imager (page 8).
3. Set up microplate washer (page 12) and shaker (page 8).
4. Reconstitute and prepare reagents (page 8).
Running the Assay
5. Prepare the calibration curve using the Calibrator and Sample Diluent containing competitor according to the Product Card (page 8).
6. Prepare the samples with Sample Diluent containing competitor (page 9).
7. Load the calibration curve and samples onto the plate. Shake for two hours at room temperature (500 RPM) (page 9).
8. Wash the plate three times, add the Detection Mix, and shake for one hour at room temperature (500 RPM) (page 9).
9. Wash the plate three times, add the Streptavidin HRP 1X, shake for 20 minutes at room temperature (500 RPM) (page 10).
10. Allow Substrate A and Substrate B2 to come to room temperature, then mix equal volumes and allow the solution to sit at room temperature (page 8).
11. Wash the plate six times, and add the mixed Substrate (page 10).
12. Capture and analyze image of the plate (page 10).

For Research Use Only

PLATE DIAGRAM

For Research Use Only

NOTES

For Research Use Only

365 North 600 West, Logan, Utah 84321 T: 1-888-782-6797 · F: (435)750-6869 www.quansysbio.com · Technical Support: support@quansysbio.com 569817HU

References

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