CD271 (LNGFR) antibodies human Contents 1. Description 1.1 Background information 1.2 Applications ●● goat cells ●● dog cells ●● pig cells ●● sheep cells 1.3 Recommended antibody dilution 1.1 Background information 1.4 Reagent requirements ●● Antigen: CD271 (LNGFR) 2. General protocol for immunofluorescent staining ●● Synonym: NGFR (p75); p75NGFR; p75NTR; TNFRSF16 3. Example of immunofluorescent staining with CD271 (LNGFR) antibodies ●● Expression patterns: Clone ME20.4-1.H4 recognizes the CD271 antigen, also known as LNGFR (low-affinity nerve growth factor receptor) or p75 NTR (neurotrophin receptor). CD271 belongs to the low-affinity neurotrophin receptors and the tumor necrosis factor receptor superfamily. Initially the human CD271 (LNGFR) was described to be expressed on cells of the central and peripheral nervous system, and was suggested to be involved in the development, survival, and differentiation of cells.1 CD271 (LNGFR) is expressed on mesenchymal stem/ stromal cells (MSCs)2,3,4, follicular dendritic cells5, mesenchymal cells involved in mesenchymal-epithelial interactions6, autonomic and sensory neurons7, oligodendrocytes8, astrocytes9, schwann cells10,11, and neural crest stem cells12 . 4. References Warnings Reagents contain sodium azide. Under acidic conditions sodium azide yields hydrazoic acid, which is extremely toxic. Azide compounds should be diluted with running water before discarding. These precautions are recommended to avoid deposits in plumbing where explosive conditions may develop. 1.2 Applications 1. Description ●● This product is for research use only. ComponentsMonoclonal CD271 (LNGFR) antibodies, human conjugated to: 1.3 Recommended antibody dilution Conjugate Order no. 1 mL (100 tests) Order no. 300 µL (30 tests) The recommended antibody dilution for all CD271 (LNGFR) conjugates is 1:11 for up to 107 cells/100 µL of buffer for labeling of cells and subsequent analysis by flow cytometry. FITC 130-091-917 130-098-103 VioBright™ FITC 130-104-847 130-104-893 PE 130-091-885 130-098-111 APC 130-091-884 130-098-112 The recommended antibody dilution for CD271 (LNGFR)-Biotin is 1:33 for up to 10⁷ cells/100 μL of buffer for labeling of cells and subsequent analysis by flow cytometry. When working with formaldehyde-fixed or MicroBead-labeled cells use 1:11 for up to 10⁷ cells/100 μL of buffer. VioBlue® 130-106-553 130-106-597 The antibody is suited for staining of formaldehyde-fixed cells. PE-Vio®770 130-099-992 130-100-019 Biotin 130-091-883 130-098-098 1.4 Reagent requirements ●● CloneME20.4-1.H4 (isotype: mouse IgG1). Capacity1 mL: 100 tests or up to 10⁹ total cells 300 μL: 30 tests or up to 3×10⁸ total cells. Product formatAntibodies are supplied in buffer containing stabilizer and 0.05% sodium azide. StorageStore protected from light at 2−8 °C. Do not freeze. The expiration date is indicated on the vial label. Cross-reactivity: The CD271 (LNGFR) antibody has been reported to react with 140-001-292.06 ●● Identification and enumeration of CD271 (LNGFR)+ cells by flow cytometry. monkey cells Miltenyi Biotec GmbH Friedrich-Ebert-Straße 68, 51429 Bergisch Gladbach, Germany Phone +49 2204 8306-0, Fax +49 2204 85197 [email protected] www.miltenyibiotec.com Buffer: Prepare a solution containing phosphate-buffered saline (PBS), pH 7.2, 0.5% bovine serum albumin (BSA), and 2 mM EDTA by diluting MACS® BSA Stock Solution (# 130‑091‑376) 1:20 with autoMACS® Rinsing Solution (# 130‑091‑222). Keep buffer cold (2−8 °C). ▲▲Note: EDTA can be replaced by other supplements such as anticoagulant citrate dextrose formula-A (ACD-A) or citrate phosphate dextrose (CPD). Buffers or media containing Ca 2+ or Mg 2+ are not recommended for use. ●● (Optional) FcR Blocking Reagent, human (# 130-059-901) to avoid Fc receptor–mediated antibody labeling. ●● (Optional) Tandem Signal Enhancer, human (# 130-099-888) to reduce non-specific binding of tandem dye–conjugated antibodies to human cells, especially to monocytes. Miltenyi Biotec Inc. 2303 Lindbergh Street, Auburn, CA 95602, USA Phone 800 FOR MACS, +1 530 888 8871, Fax +1 877 591 1060 [email protected] page 1/2 (Optional) Conjugated anti-biotin antibodies, e.g., AntiBiotin-PE (# 130-090-756) as secondary antibody reagent in combination with CD271 (LNGFR)-Biotin. 4. References 1. ●● (Optional) For antibodies for additional staining or for isotype control, refer to www.miltenyibiotec.com/antibodies. Thomson, T. M. et al. (1988) Expression of human nerve growth factor receptor on cells derived from all three germ layers. Exp. Cell Res. 174: 533–539. 2. ●● (Optional) Propidium Iodide Solution (# 130‑093‑233) for flow cytometric exclusion of dead cells without fixation. Caneva, L. et al. (1995) Immuno-electron microscopy characterization of human bone marrow stromal cells with anti-NGFR antibodies. Blood Cells Mol. Dis. 21: 73–85. 3. ●● (Optional) Fixation and Dead Cell Discrimination Kit (# 130‑091‑163) for cell fixation and flow cytometric exclusion of dead cells. Quirici, N. et al. (2002) Isolation of bone marrow mesenchymal stem cells by anti-nerve growth factor receptor antibodies. Exp. Hematol. 30: 783–791. 4. Jones, E. A. et al. (2002) Isolation and characterization of bone marrow multipotential mesenchymal progenitor cells. Arthritis Rheum. 46: 3349– 3360. 5. Pezzati, P. et al. (1992) Expression of nerve growth factor receptor immunoreactivity on follicular dendritic cells from human mucosa associated lymphoid tissues. Immunology 76: 485–490. 6. Huber, L. J. and Chao, M. V. (1995) Mesenchymal and neuronal cell expression of the p75 neurotrophin receptor gene occur by different mechanisms. Dev. Biol. 167: 227–238. 7. Kashiba, H. et al. (1995) Coexpression of trk family members and low-affinity neurotrophin receptors in rat dorsal root ganglion neurons. Brain Res. Mol. Brain Res. 30: 158–164. 8. Casaccia-Bonnefil, P. et al. (1996) Death of oligodendrocytes mediated by the interaction of nerve growth factor with its receptor p75. Nature 383: 716–719. 1. Determine cell number. 9. 2. Centrifuge cell suspension at 300×g for 10 minutes. Aspirate supernatant completely. Rudge, J. S. et al. (1994) Neurotrophic factor receptors and their signal transduction capabilities in rat astrocytes. Eur. J. Neurosci. 6: 693–705. 10. DiStefano, P. S. and Johnson, E. M. Jr. (1988) Identification of a truncated form of the nerve growth factor receptor. Proc. Natl. Acad. Sci. U.S.A. 85: 270–274. 11. Vroemen, M. and Weidner, N. (2003) Purification of Schwann cells by selection of p75 low affinity nerve growth factor receptor expressing cells from adult peripheral nerve. J. Neurosci. Methods 124: 135–143. ●● 2. General protocol for immunofluorescent staining Volumes given below are for up to 107 nucleated cells. When working with fewer than 107 cells, use the same volumes as indicated. When working with higher cell numbers, scale up all reagent volumes and total volumes accordingly (e.g. for 2×10⁷ nucleated cells, use twice the volume of all indicated reagent volumes and total volumes). 3. Resuspend up to 10⁷ nucleated cells per 100 µL of buffer. 4. Add 10 µL of the CD271 (LNGFR) antibody. 5. Mix well and incubate for 10 minutes in the dark in the refrigerator (2−8 °C). ▲▲Note: Higher temperatures and/or longer incubation times may lead to nonspecific cell labeling. Working on ice requires increased incubation times. 6. Wash cells by adding 1−2 mL of buffer and centrifuge at 300×g for 10 minutes. Aspirate supernatant completely. 7. (Optional) If CD271 (LNGFR)-Biotin was used, resuspend the cell pellet in 100 µL of buffer, add 10 µL of anti-biotin antibody, and continue as described in steps 5 and 6. 8. Resuspend cell pellet in a suitable amount of buffer for analysis by flow cytometry or fluorescence microscopy. 3. Example of immunofluorescent staining with CD271 (LNGFR) antibodies 13. Rozemuller, H. et al. (2010) Prospective isolation of mesenchymal stem cells from multiple mammalian species using cross-reacting anti-human monoclonal antibodies. Stem Cells Dev. 19: 1911–1921. Refer to www.miltenyibiotec.com for all data sheets and protocols. Warranty The products sold hereunder are warranted only to be free from defects in workmanship and material at the time of delivery to the customer. Miltenyi Biotec GmbH makes no warranty or representation, either expressed or implied, with respect to the fitness of a product for a particular purpose. There are no warranties, expressed or implied, which extend beyond the technical specifications of the products. Miltenyi Biotec GmbH’s liability is limited to either replacement of the products or refund of the purchase price. Miltenyi Biotec GmbH is not liable for any property damage, personal injury or economic loss caused by the product. autoMACS, MACS, Vio, and VioBlue are registered trademarks and VioBright is a trademark of Miltenyi Biotec GmbH. Copyright © 2016 Miltenyi Biotec GmbH. All rights reserved. Counts Jurkat cells were transfected with the human LNGFR gene and mixed with untransfected cells. Mixed cells were stained with fluorochrome-conjugated CD271 (LNGFR) antibodies conjugated to PE and then analyzed by flow cytometry. 12. Chalazonitis, A. et al. (1998) Age-dependent differences in the effects of GDNF and NT-3 on the development of neurons and glia from neural crest-derived precursors immunoselected from the fetal rat gut: expression of GFRalpha-1 in vitro and in vivo. Dev. Biol. 204 (2): 385–406. Anti-LNGFR-PE 140-001-292.06 For more examples please refer to the respective product page at www.miltenyibiotec.com/antibodies. Unless otherwise specifically indicated, all Miltenyi Biotec products and services are for research use only and not for diagnostic or therapeutic use. page 2/2
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