Human Thrombospondin-1 Quantikine ELISA Kit

(23 citations)   
  • Assay Type
    Solid Phase Sandwich ELISA
  • Format
    96-well strip plate
  • Assay Length
    4.5 hours
  • Sample Type & Volume Required Per Well
    Cell Culture Supernates (25 uL), Serum (10 uL), Platelet-poor EDTA Plasma (25 uL), Platelet-poor Heparin Plasma (25 uL), Saliva (50 uL), Human Milk (50 uL)
  • Sensitivity
    0.944 ng/mL
  • Assay Range
    7.8 - 500 ng/mL (Cell Culture Supernates, Serum, Platelet-poor EDTA Plasma, Platelet-poor Heparin Plasma, Saliva, Human Milk)
  • Specificity
    Natural and recombinant human Thrombospondin-1
  • Cross-reactivity
    < 0.5% cross-reactivity observed with available related molecules.< 50% cross-species reactivity observed with species tested.
  • Interference
    No significant interference observed with available related molecules.
Control Available
QC170, Quantikine Immunoassay Control Set 818 Hum Thrombospondin-1 - Please Inquire
Product Summary
The Quantikine Human Thrombospondin-1 Immunoassay is a 4.5 hour solid-phase ELISA designed to measure human Thrombospondin-1 in cell culture supernates, serum, plasma, saliva, and human milk. It contains NS0-expressed recombinant human Thrombospondin-1 and has been shown to accurately quantitate the recombinant factor. Results obtained using natural human Thrombospondin-1 showed linear curves that were parallel to the standard curves obtained using the Quantikine kit standards. These results indicate that this kit can be used to determine relative mass values for naturally occurring human Thrombospondin-1.

Precision
Intra-Assay Precision (Precision within an assay) Three samples of known concentration were tested on one plate to assess intra-assay precision.
Inter-Assay Precision (Precision between assays) Three samples of known concentration were tested in separate assays to assess inter-assay precision.
Cell Culture Supernates, Serum, Platelet-poor EDTA Plasma, Platelet-poor Heparin Plasma, Saliva, Human Milk
Intra-Assay Precision Inter-Assay Precision
Sample123123
n202020404040
Mean71.914228275.8151294
Standard Deviation4.349.56184.718.5117.6
CV%66.76.46.25.66

Recovery

The recovery of Thrombospondin-1 spiked to levels throughout the range of the assay in various matrices was evaluated.

Sample Type Average % Recovery Range %
Cell Culture Media (n=4) 95 86-101
Platelet-poor EDTA Plasma (n=4) 94 89-99
Platelet-poor Heparin Plasma (n=4) 93 87-104
Linearity
To assess the linearity of the assay, samples containing and/or spiked with high concentrations of Thrombospondin-1 were serially diluted with Calibrator Diluent to produce samples with values within the dynamic range of the assay.
Human Thrombospondin-1 Quantikine ELISA Kit
Preparation and Storage
  • Storage
    Store the unopened product at 2 - 8 °C. Do not use past expiration date.
Background: Thrombospondin-1
Thrombospondins (TSP) are secreted multidomain glycoproteins with many putative functions including modulating cell adhesion, proliferation, migration, and angiogenesis. At least five TSPs exist: TSP-1, -2, -3, -4, and cartilage oligomeric glycoprotein (COMP)/TSP-5. The family can be divided into two subgroups. The first, TSP-1 and -2, are homotrimeric molecules, each monomer containing an N-terminal/heparin-binding domain, a coiled-coil oligomerization domain, a von Willebrand factor-type/procollagen homology domain, three type 1 thrombospondin repeats (TSR), three EGF-like repeats, seven TSP type 3 repeats, and a C-terminal globular domain. TSP-1 and -2 are thought to mediate interactions between cells and the extracellular matrix, and as such are matricellular proteins. In contrast, TSP-3, -4, and COMP/TSP-5 are homopentamers that lack the N-terminal structure of TSP-1 and -2, but have a similar arrangement of EGF and TSP type 3 repeats, and the C-terminal domain characteristic of the TSP family.
    • Entrez Gene IDs
      7057 (Human); 21825 (Mouse);
    • Alternate Names
      THBS; THBS1; THBS-1; thrombospondin 1; Thrombospondin1; Thrombospondin-1; thrombospondin-1p180; TSP-1; TSP1thrombospondin-1; TSPTSP-1;
    Related Research Areas
    Assay Procedure
    Refer to the product for complete assay procedure.

    Bring all reagents and samples to room temperature before use. It is recommended that all samples, standards, and controls be assayed in duplicate.
    1.   Prepare all reagents, standard dilutions, and samples as directed in the product insert.
    2.   Remove excess microplate strips from the plate frame, return them to the foil pouch containing the desiccant pack, and reseal.

    3. 100 µL Assay Diluent
    4.   Add 100 µL of Assay Diluent to each well.

    5. 50 µL Standard, Control, or Sample
    6.   Add 50 µL of Standard, control, or sample to each well. Cover with a plate sealer, and incubate at room temperature for 2 hours on a horizontal orbital microplate shaker.
    7.   Aspirate each well and wash, repeating the process 3 times for a total of 4 washes.

    8. 200 µL Conjugate
    9.   Add 200 µL of Conjugate to each well. Cover with a new plate sealer, and incubate at room temperature for 2 hours on the shaker.
    10.   Aspirate and wash 4 times.

    11. 200 µL Substrate Solution
    12.   Add 200 µL Substrate Solution to each well. Incubate at room temperature for 30 minutes on the benchtop. PROTECT FROM LIGHT.

    13. 50 µL Stop Solution
    14.   Add 50 µL of Stop Solution to each well. Read at 450 nm within 30 minutes. Set wavelength correction to 540 nm or 570 nm.
    Citations:

    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.

    23 Citations: Showing 1 - 10
    Filter your results:

    Species
    Sample Type
    1. Aureobasidium pullulans produced ?-glucan is effective to enhance Kurosengoku soybean extract induced Thrombospondin-1 expression
      Authors: D Muramatsu, M Okabe, A Takaoka, H Kida, A Iwai
      Sci Rep, 2017;7(1):2831.
      Species: Human
      Sample Type: Cell Culture Supernates
    2. Vitamin D supplementation lowers thrombospondin-1 levels and blood pressure in healthy adults
      Authors: AT Amaraseker, B Assadi-Kha, S Liu, M Black, G Dymmott, NM Rogers, AL Sverdlov, JD Horowitz, DTM Ngo
      PLoS ONE, 2017;12(5):e0174435.
      Species: Human
      Sample Type: Plasma
    3. Inflammatory Differences in Plaque Erosion and Rupture in Patients With ST-Segment Elevation Myocardial Infarction
      Authors: S Chandran, J Watkins, A Abdul-Aziz, M Shafat, PA Calvert, KM Bowles, MD Flather, SA Rushworth, AD Ryding
      J Am Heart Assoc, 2017;6(5):.
      Species: Human
      Sample Type: Plasma
    4. Hedgehog signalling pathway orchestrates angiogenesis in triple-negative breast cancers
      Authors: C Di Mauro, R Rosa, V D'Amato, P Ciciola, A Servetto, R Marciano, RC Orsini, L Formisano, S De Falco, V Cicatiello, M Di Bonito, M Cantile, F Collina, A Chambery, BM Veneziani, S De Placido, R Bianco
      Br. J. Cancer, 2017;0(0):.
      Species: Human
      Sample Type: Cell Culture Supernates
    5. Unaltered Angiogenesis-Regulating Activities of Platelets in Mild Type 2 Diabetes Mellitus despite a Marked Platelet Hyperreactivity
      PLoS ONE, 2016;11(9):e0162405.
      Species: Human
      Sample Type: Cell Culture Supernates
    6. Combining bevacizumab and chemoradiation in rectal cancer. Translational results of the AXEBeam trial.
      Authors: Verstraete M, Debucquoy A, Dekervel J, Van Pelt J, Verslype C, Devos E, Chiritescu G, Dumon K, D'Hoore A, Gevaert O, Sagaert X, Van Cutsem E, Haustermans K
      Br J Cancer, 2015;112(8):1314-25.
      Species: Human
      Sample Type: Whole Blood
    7. BMP4/Thrombospondin-1 loop paracrinically inhibits tumor angiogenesis and suppresses the growth of solid tumors.
      Authors: Tsuchida, R, Osawa, T, Wang, F, Nishii, R, Das, B, Tsuchida, S, Muramatsu, M, Takahashi, T, Inoue, T, Wada, Y, Minami, T, Yuasa, Y, Shibuya, M
      Oncogene, 2014;33(29):3803-11.
      Species: Human
      Sample Type: Cell Culture Supernates
    8. Net platelet angiogenic activity (NPAA) correlates with progression and prognosis of non-small cell lung cancer.
      Authors: Yao L, Dong H, Luo Y, Du J, Hu W
      PLoS ONE, 2014;9(4):e96206.
      Species: Human
      Sample Type: Cell Lysates
    9. Thrombospondin-1 production is enhanced by Porphyromonas gingivalis lipopolysaccharide in THP-1 cells.
      Authors: Gokyu M, Kobayashi H, Nanbara H, Sudo T, Ikeda Y, Suda T, Izumi Y
      PLoS ONE, 2014;9(12):e115107.
      Species: Human
      Sample Type: Cell Culture Supernates
    10. MicroRNA-16 affects key functions of human endothelial progenitor cells.
      Authors: Goretti E, Rolland-Turner M, Leonard F, Zhang L, Wagner D, Devaux Y
      J Leukoc Biol, 2013;93(5):645-55.
    11. Long-term survival and biomarker correlates of tasquinimod efficacy in a multicenter randomized study of men with minimally symptomatic metastatic castration-resistant prostate cancer.
      Authors: Armstrong A, Haggman M, Stadler W, Gingrich J, Assikis V, Polikoff J, Damber J, Belkoff L, Nordle O, Forsberg G, Carducci M, Pili R
      Clin Cancer Res, 2013;19(24):6891-901.
      Species: Human
      Sample Type: Plasma
    12. Thrombospondin-1 expression in melanoma is blocked by methylation and targeted reversal by 5-Aza-deoxycytidine suppresses angiogenesis.
      Authors: Lindner D, Wu Y, Haney R, Jacobs B, Fruehauf J, Tuthill R, Borden E
      Matrix Biol, 2013;32(2):123-32.
      Species: Human
      Sample Type: Cell Culture Supernates
    13. Metronomic activity of CD44-targeted hyaluronic acid-paclitaxel in ovarian carcinoma.
      Clin. Cancer Res., 2012;18(15):4114-21.
      Species: Complex Species Category
      Sample Type: Plasma
    14. Predictors of thromboxane levels in patients with non-ST-elevation acute coronary syndromes on chronic aspirin therapy.
      Thromb. Haemost., 2012;108(1):133-9.
      Species: Human
      Sample Type: Plasma
    15. Pharmacodynamic and pharmacogenetic angiogenesis-related markers of first-line FOLFOXIRI plus bevacizumab schedule in metastatic colorectal cancer.
      Authors: Loupakis F, Cremolini C, Fioravanti A
      Br. J. Cancer, 2011;104(8):1262-9.
      Species: Human
      Sample Type: Plasma
    16. Thrombospondin-1 triggers cell migration and development of advanced prostate tumors.
      Authors: Firlej V, Mathieu JR, Gilbert C, Lemonnier L, Nakhle J, Gallou-Kabani C, Guarmit B, Morin A, Prevarskaya N, Delongchamps NB, Cabon F
      Cancer Res., 2011;71(24):7649-58.
      Species: Human
      Sample Type: Cell Lysates
    17. Platelet-derived growth factor (PDGF)-PDGF receptor interaction activates bone marrow-derived mesenchymal stromal cells derived from chronic lymphocytic leukemia: implications for an angiogenic switch.
      Authors: Ding W, Knox TR, Tschumper RC
      Blood, 2010;116(16):2984-93.
      Species: Human
      Sample Type: Platelet-Poor Plasma
    18. Escherichia coli K1 promotes the ligation of CD47 with thrombospondin-1 to prevent the maturation of dendritic cells in the pathogenesis of neonatal meningitis.
      Authors: Mittal R, Gonzalez-Gomez I, Prasadarao NV
      J. Immunol., 2010;185(5):2998-3006.
      Species: Human
      Sample Type: Cell Culture Supernates
    19. Thrombospondin-1: a unique marker to identify in vitro platelet activation when monitoring in vivo processes.
      Authors: Starlinger P, Moll HP
      J. Thromb. Haemost., 2010;0(0):.
      Species: Human
      Sample Type: Serum
    20. Tasquinimod (ABR-215050), a quinoline-3-carboxamide anti-angiogenic agent, modulates the expression of thrombospondin-1 in human prostate tumors.
      Authors: Olsson A, Bjork A, Vallon-Christersson J, Isaacs JT, Leanderson T
      Mol. Cancer, 2010;9(0):107.
      Species: Human
      Sample Type: Cell Culture Supernates
    21. Cytokine secretion by human mesenchymal stem cells cocultured with damaged corneal epithelial cells.
      Authors: Oh JY, Kim MK, Shin MS, Wee WR, Lee JH
      Cytokine, 2009;46(1):100-3.
      Species: Human
      Sample Type: Cell Culture Supernates
    22. Estrogen regulation of thrombospondin-1 in human breast cancer cells.
      Int. J. Cancer, 2009;125(0):1045.
      Species: Human
      Sample Type: Cell Culture Supernates
    23. Integrated proteomic analysis of human cancer cells and plasma from tumor bearing mice for ovarian cancer biomarker discovery.
      Authors: Pitteri SJ, JeBailey L, Faca VM, Thorpe JD, Silva MA, Ireton RC, Horton MB, Wang H, Pruitt LC, Zhang Q, Cheng KH, Urban N, Hanash SM, Dinulescu DM
      PLoS ONE, 2009;4(11):e7916.
      Species: Human
      Sample Type: Plasma
    Expand to show all 23 Citations
    ELISA Controls
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    Quantikine Immunoassay Control Set 818 Hum Thrombospondin-1

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    Quantikine ELISA Wash Buffer 1

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