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ELISA Kit for Stromal Cell Derived Factor 1 (SDF1)

CXCL12; PBSF; P-BSF; SCYB12; SDF1-A; SDF1-B; SDF1A; SDF1B; TLSF-A; TLSF-B; TPAR1; Pre-B Cell Growth-Stimulating Factor; Chemokine C-X-C-Motif Ligand 12

Specificity

This assay has high sensitivity and excellent specificity for detection of Stromal Cell Derived Factor 1 (SDF1).
No significant cross-reactivity or interference between Stromal Cell Derived Factor 1 (SDF1) and analogues was observed.

Recovery

Matrices listed below were spiked with certain level of recombinant Stromal Cell Derived Factor 1 (SDF1) and the recovery rates were calculated by comparing the measured value to the expected amount of Stromal Cell Derived Factor 1 (SDF1) in samples.

Matrix Recovery range (%) Average(%)
sodium citrate plasma(n=5) 83-92 88

Precision

Intra-assay Precision (Precision within an assay): 3 samples with low, middle and high level Stromal Cell Derived Factor 1 (SDF1) were tested 20 times on one plate, respectively.
Inter-assay Precision (Precision between assays): 3 samples with low, middle and high level Stromal Cell Derived Factor 1 (SDF1) were tested on 3 different plates, 8 replicates in each plate.
CV(%) = SD/meanX100
Intra-Assay: CV<10%
Inter-Assay: CV<12%

Linearity

The linearity of the kit was assayed by testing samples spiked with appropriate concentration of Stromal Cell Derived Factor 1 (SDF1) and their serial dilutions. The results were demonstrated by the percentage of calculated concentration to the expected.

Sample 1:2 1:4 1:8 1:16
sodium citrate plasma(n=5) 85-96% 80-103% 97-105% 80-90%

Stability

The stability of kit is determined by the loss rate of activity. The loss rate of this kit is less than 5% within the expiration date under appropriate storage condition.
To minimize extra influence on the performance, operation procedures and lab conditions, especially room temperature, air humidity, incubator temperature should be strictly controlled. It is also strongly suggested that the whole assay is performed by the same operator from the beginning to the end.

Reagents and materials provided

Reagents Quantity Reagents Quantity
Pre-coated, ready to use 96-well strip plate 1 Plate sealer for 96 wells 4
Standard 2 Standard Diluent 1×20mL
Detection Reagent A 1×120µL Assay Diluent A 1×12mL
Detection Reagent B 1×120µL Assay Diluent B 1×12mL
TMB Substrate 1×9mL Stop Solution 1×6mL
Wash Buffer (30 × concentrate) 1×20mL Instruction manual 1

Assay procedure summary

1. Prepare all reagents, samples and standards;
2. Add 100µL standard or sample to each well. Incubate 1 hours at 37°C;
3. Aspirate and add 100µL prepared Detection Reagent A. Incubate 1 hour at 37°C;
4. Aspirate and wash 3 times;
5. Add 100µL prepared Detection Reagent B. Incubate 30 minutes at 37°C;
6. Aspirate and wash 5 times;
7. Add 90µL Substrate Solution. Incubate 10-20 minutes at 37°C;
8. Add 50µL Stop Solution. Read at 450nm immediately.

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Magazine Reference
Critical Care Endothelial progenitor cells (EPC) in sepsis with acute renal dysfunction (ARD) Goescholar: source
Biomaterials The promotion of endothelial progenitor cells recruitment by nerve growth factors in tissue-engineered blood vessels ScienceDirect: S0142961209012654
Biomaterials The use of BDNF to enhance the patency rate of small-diameter tissue-engineered blood vessels through stem cell homing mechanisms ScienceDirect: S0142961211011422
Phytomedicine Tanshinone IIA increases recruitment of bone marrow mesenchymal stem cells to infarct region via up-regulating stromal cell-derived factor-1/CXC chemokine receptor 4 axis in a myocardial ischemia model ScienceDirect: S0944711310003260
Graefe's Archive for Clinical and Experimental Ophthalmology Monocyte/macrophages promote vasculogenesis in choroidal neovascularization in mice by stimulating SDF-1 expression in RPE cells PubMed: 21655971
Molecular Therapy Pleiotropic beneficial effects of sonic hedgehog gene therapy in an experimental model of peripheral limb ischemia PubMed: 21224834
Oncogene Elevated PLGF contributes to small-cell lung cancer brain metastasis PubMed: 22797069
International Journal of Nephrology Impairment and Differential Expression of PR3 and MPO on Peripheral Myelomonocytic Cells with Endothelial Properties in Granulomatosis with Polyangiitis PubMed: 22792461
Rheumatology International Serum levels of selected chemokines in systemic lupus erythematosus patients Pubmed: 22461186
Experimental Eye Research Hyperglycemia promotes vasculogenesis in choroidal neovascularization in diabetic mice by stimulating VEGF and SDF-1 expression in retinal pigment epithelial cells Pubmed: 24780853
Atherosclerosis The non-alcoholic fraction of beer increases stromal cell derived factor 1 and the number of circulating endothelial progenitor cells in high cardiovascular risk subjects: A randomized clinical trial Pubmed:24530788
International Journal of Cardiology Hypoxic exercise training improves cardiac/muscular hemodynamics and is associated with modulated circulating progenitor cells in sedentary men Pubmed:24286591
Tissue Engineering Part A Tissue Inhibitor of Metalloproteinase-1 and -3 Improves Cardiac Function in an Ischemic Cardiomyopathy Model Rat Pubmed:24814095
Pharmacol Rep.? Comparison of chemokines (CCL-5 and SDF-1), chemokine receptors (CCR-5 and CXCR-4) and IL-6 levels in patients with different severities of depression Pubmed:25150002
Journal of Stroke and Cerebrovascular Diseases Circulating CD133+ CD34+ Progenitor Cells and Plasma Stromal-Derived Factor-1Alpha: Predictive Role in Ischemic Stroke Patients Pubmed:25444027
Pharmacological Reports The MCP-1, CCL-5 and SDF-1 chemokines as pro-inflammatory markers in generalized anxiety disorder and personality disorders Pubmed:25560580
In Vitro Cellular &amp; Developmental Biology - Animal Stromal cell-derived factor 1 (SDF-1) accelerated skin wound healing by promoting the migration and proliferation of epidermal stem cells Pubmed:25636237
Pharmacological Reports Serum concentrations of chemokines (CCL-5 and CXCL-12), chemokine receptors (CCR-5 and CXCR-4), and IL-6 in patients with posttraumatic stress disorder and avoidant personality disorder PubMed: 26481549
Biochem Biophys Res Commun Stromal cell-derived factor 1 promoted migration of adipose-derived stem cells to the wounded area in traumatic rats PubMed: 26392311
Am J Transl Res Role of SDF-1 and Wnt signaling pathway in the myocardial fibrosis of hypertensive rats PubMed: 26396666
Medicine (Baltimore) A Novel Combination of Calprotectin and CXCL13 for Predicting Malignancy in Patients with Exudative Pleural Effusion PubMed: 26632727
Pharmacological Reports A study of chemokines, chemokine receptors and interleukin-6 in patients with panic disorder, personality disorders and their co-morbidity Pubmed:27208878
Frontiers in Psychiatry Plasma Chemokines in Patients with Alcohol Use Disorders: Association of CCL11 (Eotaxin-1) with Psychiatric Comorbidity. pubmed:28149283
European Journal of Applied Physiology High-intensity Interval training enhances mobilization/functionality of endothelial progenitor cellsand depressed shedding of vascular endothelial cells undergoing hypoxia. pubmed:27761657
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