CD15 (MMA) IVD. Antibody purity is as follows. FITC: 5% free fluorophore at bottling, as measured by size-exclusion chromatography (SEC)

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1 2/ IVD CD15 (MMA) Monoclonal mouse anti-human reagent for identification of cells expressing CD15 antigen Form Catalog No. FITC BD, BD Logo and all other trademarks are property of Becton, Dickinson and Company BD Becton, Dickinson and Company BD Biosciences 2350 Qume Drive San Jose, CA USA Benex Limited Pottery Road, Dun Laoghaire, Co. Dublin, Ireland Tel Fax BD Biosciences European Customer Support Tel Fax Becton Dickinson Pty Ltd, 4 Research Park Drive, Macquarie University Research Park, North Ryde NSW 2113, Australia Becton Dickinson Limited, 8 Pacific Rise, Mt. Wellington, Auckland, New Zealand bdbiosciences.com ClinicalApplications@bd.com 1. INTENDED USE CD15 is intended for in vitro diagnostic use in the identification of cells expressing CD15 antigen, using a BD FACS brand flow cytometer. The flow cytometer must be equipped to detect light scatter and the appropriate fluorescence, and be equipped with appropriate analysis software (such as BD CellQuest or BD LYSYS II software) for data acquisition and analysis. Refer to your instrument user s guide for instructions. Applications Expression of CD15 in the characterization of hematologic neoplasia COMPOSITION CD15, clone MMA, is derived from hybridization of mouse P3-X63-Ag8.653 myeloma cells with spleen cells from BALB/c mice immunized with the U-937 histiocytic cell line. CD15 is composed of mouse IgM heavy chains and kappa light chains. Each reagent is supplied in 2X HEPES solution containing gelatin and 0.1% sodium azide. Concentrations are listed in Table 1. Table 1 Bottling concentrations Form Amount provided Conc a (µg/ml) FITC 200 µg in 2.0 ml of HEPES 100 a. Conc = concentration Antibody purity is as follows. FITC: 5% free fluorophore at bottling, as measured by size-exclusion chromatography (SEC) 1

2 3. STORAGE AND HANDLING The antibody reagent is stable until the expiration date shown on the label when stored at 2 C 8 C. Do not use after the expiration date. Do not freeze the reagent or expose it to direct light during storage or incubation with cells. Keep the outside of the reagent vial dry. Do not use the reagent if you observe any change in appearance. Precipitation or discoloration indicates instability or deterioration. 4. REAGENTS OR MATERIALS REQUIRED BUT NOT PROVIDED Falcon * disposable 12 x 75-mm polystyrene test tubes or equivalent Micropipettor with tips Vortex mixer BD FACS lysing solution (10X) (Catalog No ). For dilution instructions and warnings, refer to the instructions for use (IFU). Centrifuge BD CellWASH solution (Catalog No ) or a wash buffer of phosphatebuffered saline (PBS) with 0.1% sodium azide BD CellFIX solution (Catalog No ) or 1% paraformaldehyde solution in PBS with 0.1% sodium azide. Store at 2 C 8 C in amber glass for up to 1 week. BD FACS brand flow cytometer. Refer to the appropriate instrument user s guide for information. 5. SPECIMEN(S) Reagents can be used for immunophenotyping by flow cytometry with a variety of specimen types, including peripheral blood, bone marrow aspirates or biopsies, and other body fluids or tissues. Each type of specimen can have different storage conditions and limitations that should be considered prior to collection and analysis. 6,7 Samples with large numbers of nonviable cells can give erroneous results due to selective loss of populations and to increased nonspecific binding of antibodies to nonviable cells. Viability of samples should be assessed and a cut-off value established. A cut-off value of at least 80% viable cells has been suggested. 6 WARNING All biological specimens and materials coming in contact with them are considered biohazards. Handle as if capable of transmitting infection 8,9 and dispose of with proper precautions in accordance with federal, state, and local regulations. Never pipette by mouth. Wear suitable protective clothing, eyewear, and gloves. 6. PROCEDURE CAUTION Do not use ammonium chloride for lysing red cells when staining with CD15 FITC, clone MMA. Granulocytes are lost when ammonium chloride is used. 1. Add the appropriate volume of CD15 fluorochrome-conjugated monoclonal antibody to 100 µl of whole blood in a 12 x 75-mm tube. Refer to the appropriate vial label for volume. * Falcon is a registered trademark of Corning Incorporated. 2

3 2. Vortex gently and incubate for 15 to 30 minutes in the dark at room temperature (20 C 25 C). 3. Add 2 ml of 1X BD FACS lysing solution. 4. Vortex gently and incubate for 10 minutes in the dark at room temperature. 5. Centrifuge at 300g for 5 minutes. Remove the supernatant. 6. Add 2 to 3 ml of BD CellWASH solution (or wash buffer) and centrifuge at 200g for 5 minutes. Remove the supernatant. 7. Add 0.5 ml of BD CellFIX solution (or 1% paraformaldehyde solution) and mix thoroughly. Store at 2 C 8 C until analyzed. We recommend analyzing within 24 hours of staining. Analytical Results Abnormal numbers of cells expressing this antigen or aberrant expression levels of the antigen can be expected in some disease states. It is important to understand the normal expression pattern for this antigen and its relationship to expression of other relevant antigens in order to perform appropriate analysis. Flow Cytometry Vortex the cells thoroughly at low speed to reduce aggregation before running them on the flow cytometer. 10 Before acquiring samples, adjust the threshold to minimize debris and to ensure that populations of interest are included. Acquire and analyze list-mode data using appropriate software. Figure 1 displays representative data performed on normal peripheral blood. Laser excitation is at 488 nm. Figure 1 Representative data analyzed with a BD FACS brand flow cytometer SSC CD15 FITC Internal Quality Control We recommend using BD Calibrite beads and BD FACSComp software to set photomultiplier tube (PMT) voltages, fluorescence compensation, and to check instrument sensitivity prior to use. Refer to the BD Calibrite Beads IFU and the BD FACSComp Software Reference Manual. We recommend running a control sample daily from a normal adult subject or a commercially available whole blood control to optimize instrument settings and as a quality control check of the system PERFORMANCE CHARACTERISTICS Specificity CD15 recognizes a specific sugar sequence occurring in the glycolipid lacto-nfucopentose III ceramide. 1,12 The CD15 antigen is present on greater than 95% of mature peripheral blood granulocytes, including eosinophils and basophils 1,13 and is present at low density on circulating monocytes. 1 3

4 CD15 is expressed by only a small number of tissue macrophages 14 and is absent from dendritic cells. 15,16 CD15 is absent from immature and mature resting peripheral blood and lymphoid tissue B and T cells 1,13 and NK cells. 1 CD15 + cells can exhibit cytoplasmic or membrane staining. CD15 is expressed in virtually all patients with chronic myelogenous leukemia 1,5 and is also expressed by 80% or more of the leukemic blasts in a given AML. 17 CD15 reacts with the Reed- Sternberg cells and variants of Hodgkin s disease. 3,14,16 Sensitivity Sensitivity is defined as resolution of the CD15 + population from the CD15 population. Sensitivity was measured by evaluating a range of antibody concentrations. Each concentration of reagent was tested on whole blood. The separation of CD15 + from CD15 was determined for each sample and averaged within each concentration. The bottled antibody concentration for each reagent provided optimum sensitivity in resolving the CD15 + cells from the negative. See Table 1. Reproducibility CD15 was submitted to the Fourth International Workshop and Conference on Human Leucocyte Differentiation Antigens. Participating laboratories evaluated clone MMA as part of a blind panel of antibodies and reported consistent results. 12 Repeatability To determine the repeatability of staining with each reagent, samples were stained with multiple lots of reagents. The different samples used in the evaluation provided an average mean fluorescence intensity (MFI) value as shown in Table 2. For each sample, two different lots of reagents generated a pair of results. Individual standard deviations (SDs) were determined from the paired results for each sample. Individual SDs were combined to derive a pooled SD for each reagent that provides an estimate of within-sample repeatability. Table 2 Repeatability of MFI of granulocytes across different lots and across multiple donors (N) N a a. N = number of samples b. CV = coefficient of variation Average MFI Pooled SD Pooled %CV b FITC 5 2, LIMITATIONS Conjugates with brighter fluorochromes (PE, APC) will give greater separation than those with other dyes (FITC, PerCP). When populations overlap, calculation of the percentage of cells positive for the marker can be affected by the choice of fluorochrome. Use of monoclonal antibodies in patient treatment can interfere with recognition of target antigens by this reagent. This should be considered when analyzing samples from patients treated in this fashion. BD Biosciences has not characterized the effect of the presence of therapeutic antibodies on the performance of this reagent. Single reagents can provide only limited information in the analysis of leukemias and lymphomas. Using combinations of reagents can provide more information than using the reagents individually. Multicolor analysis using relevant combinations of reagents is highly recommended. 7 4

5 As reagents can be used in different combinations, laboratories need to become familiar with the properties of each antibody in conjunction with other markers in normal and abnormal samples. Reagent performance data was collected typically with EDTA-treated blood. Reagent performance can be affected by the use of other anticoagulants. WARRANTY Unless otherwise indicated in any applicable BD general conditions of sale for non-us customers, the following warranty applies to the purchase of these products. THE PRODUCTS SOLD HEREUNDER ARE WARRANTED ONLY TO CONFORM TO THE QUANTITY AND CONTENTS STATED ON THE LABEL OR IN THE PRODUCT LABELING AT THE TIME OF DELIVERY TO THE CUSTOMER. BD DISCLAIMS HEREBY ALL OTHER WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING WARRANTIES OF MERCHANTABILITY AND FITNESS FOR ANY PARTICULAR PURPOSE AND NONINFRINGEMENT. BD S SOLE LIABILITY IS LIMITED TO EITHER REPLACEMENT OF THE PRODUCTS OR REFUND OF THE PURCHASE PRICE. BD IS NOT LIABLE FOR PROPERTY DAMAGE OR ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES, INCLUDING PERSONAL INJURY, OR ECONOMIC LOSS, CAUSED BY THE PRODUCT. TROUBLESHOOTING Problem Possible Cause Solution Poor resolution between debris and lymphocytes Cell interaction with other cells and platelets Rough handling of cell preparation Inappropriate instrument settings Prepare and stain another sample. Check cell viability; centrifuge cells at lower speed. Follow proper instrument setup procedures; optimize instrument settings as required. Problem Possible Cause Solution Staining dim or fading Poor resolution between debris and lymphocytes REFERENCES Cell concentration too high at staining step Insufficient reagent Cells not analyzed within 24 hours of staining Improper medium preparation (sodium azide omitted) Cell interaction with other cells and platelets Cytometer malfunctioning Check and adjust cell concentration or sample volume; stain with fresh sample. Repeat staining with increased amount of antibody. Repeat staining with fresh sample; analyze promptly. Use sodium azide in staining medium and washing steps. Prepare and stain another sample. Troubleshoot instrument. 1. Hanjan SN, Kearney JF, Cooper MD. A monoclonal antibody (MMA) that identifies a differentiation antigen on human myelomonocytic cells. Clin Immunol Immunopathol. 1982;23: Bettelheim P, Lutz D, Majdic O, et al. Cell lineage heterogeneity in blast crisis of chronic myeloid leukaemia. Br J Haematol. 1985;59: Arber DA, Weiss LM. CD15: a review. Appl Immunohistochem. 1993;1: Cantu-Rajnoldi A, Putti C, Saitta M, et al. Coexpression of myeloid antigens in childhood acute lymphoblastic leukaemia: relationship with the stage of differentiation and clinical significance. Br J Haematol. 1991;79: Bernstein ID, Andrews RG, Cohen SF, McMaster BE. Normal and malignant human myelocytic and monocytic cells identified by monoclonal antibodies. J Immunol. 1982;128: Rothe G, Schmitz G. Consensus protocol for the flow cytometric immunophenotyping of hematopoietic malignancies. Leukemia. 1996;10: Stelzer GT, Marti G, Hurley A, McCoy P Jr, Lovett EJ, Schwartz A. US-Canadian Consensus recommendations on the immunophenotypic analysis of hematologic neoplasia by flow cytometry: standardization and validation of laboratory procedures. Cytometry. 1997;30:

6 8. Protection of Laboratory Workers from Occupationally Acquired Infections; Approved Guideline Third Edition. Wayne, PA: Clinical and Laboratory Standards Institute; CLSI document M29-A3. 9. Centers for Disease Control. Perspectives in disease prevention and health promotion update: universal precautions for prevention of transmission of human immunodeficiency virus, hepatitis B virus, and other bloodborne pathogens in health-care settings. MMWR. 1988;37: Jackson AL, Warner NL. Preparation, staining, and analysis by flow cytometry of peripheral blood leukocytes. In: Rose NR, Friedman H, Fahey JL, eds. Manual of Clinical Laboratory Immunology. 3rd ed. Washington, DC: American Society for Microbiology; 1986: Enumeration of Immunologically Defined Cell Populations by Flow Cytometry; Approved Guideline Second Edition. Wayne, PA: Clinical and Laboratory Standards Institute; 2007, CLSI document H42-A Skubitz K, Balke J, Ball E, et al. Report on the CD15 cluster workshop. In: Knapp W, Dörken B, Gilks W, et al, eds. Leucocyte Typing IV: White Cell Differentiation Antigens. New York, NY: Oxford University Press; 1989: Andrews RG, Torok-Storb B, Bernstein ID. Myeloidassociated differentiation antigens on stem cells and their progeny identified by monoclonal antibodies. Blood. 1983;62: Hsu SM, Jaffe ES. Leu-M1 and peanut agglutinin stain the neoplastic cells of Hodgkin's Disease. Amer J Clin Path. 1984;82: Van Voorhis WC, Steinman RM, Hair LS, et al. Specific antimononuclear phagocyte monoclonal antibodies. Application to the purification of dendritic cells and the tissue localization of macrophages. J Exp Med. 1983;158: Pinkus GS, Thomas P, Said JW. Leu-M1 A marker for Reed-Sternberg cells in Hodgkin's disease: an immunoperoxidase study of paraffin-embedded tissues. Am J Pathol. 1985;119: Drexler HG, Sagawa K, Menon M, Minowada J. Reactivity pattern of myeloid monoclonal antibodies with emphasis on MCS-2. Leuk Res. 1986;10: