Human fibroblast growth factor 9 (glia-activating factor) (FGF9) ELISA kit

Code CSB-E04550h
Size 96T,5×96T,10×96T
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Product Details

Target Name
fibroblast growth factor 9 (glia-activating factor)
Alternative Names
FGF 9 ELISA Kit; FGF-9 ELISA Kit; FGF9 ELISA Kit; FGF9_HUMAN ELISA Kit; Fibroblast growth factor 9 ELISA Kit; GAF (Glia-activafibroblast growth factor 9 (glia-activating factor) ELISA Kit; GAF ELISA Kit; Glia Activating Factor ELISA Kit; Glia-activating factor ELISA Kit; HBFG 9 ELISA Kit; HBFG9 ELISA Kit; HBGF-9 ELISA Kit; Heparin-binding growth factor 9 ELISA Kit; MGC119914 ELISA Kit; MGC119915 ELISA Kit; SYNS3 ELISA Kit
Uniprot No.
Homo sapiens (Human)
Sample Types
serum, plasma, cell culture supernates, tissue homogenates
Detection Range
6.25 pg/mL-400 pg/mL
1.56 pg/mL
Assay Time
Sample Volume
Detection Wavelength
450 nm
Research Area
Signal Transduction
Assay Principle
Intra-assay Precision (Precision within an assay): CV%<8%      
Three samples of known concentration were tested twenty times on one plate to assess.  
Inter-assay Precision (Precision between assays): CV%<10%      
Three samples of known concentration were tested in twenty assays to assess.    
To assess the linearity of the assay, samples were spiked with high concentrations of human FGF9 in various matrices and diluted with the Sample Diluent to produce samples with values within the dynamic range of the assay.
  Sample Serum(n=4)  
1:1 Average % 94  
Range % 89-98  
1:2 Average % 101  
Range % 95-105  
1:4 Average % 94  
Range % 87-98  
1:8 Average % 96  
Range % 88-99  
The recovery of human FGF9 spiked to levels throughout the range of the assay in various matrices was evaluated. Samples were diluted prior to assay as directed in the Sample Preparation section.
Sample Type Average % Recovery Range  
Serum (n=5) 99 94-103  
EDTA plasma (n=4) 88 82-94  
Typical Data
These standard curves are provided for demonstration only. A standard curve should be generated for each set of samples assayed.
pg/ml OD1 OD2 Average Corrected  
400 2.452 2.510 2.481 2.359  
200 1.484 1.569 1.527 1.405  
100 0.837 0.870 0.854 0.732  
50 0.504 0.465 0.485 0.363  
25 0.346 0.341 0.344 0.222  
12.5 0.257 0.246 0.252 0.130  
6.25 0.187 0.181 0.184 0.062  
0 0.121 0.122 0.122    
and FAQs
Store at 2-8°C. Please refer to protocol.
Lead Time
3-5 working days after you place the order, and it takes another 3-5 days for delivery via DHL or FedEx

This Human FGF9 ELISA Kit was designed for the quantitative measurement of Human FGF9 protein in serum, plasma, cell culture supernates, tissue homogenates. It is a Sandwich ELISA kit, its detection range is 6.25 pg/mL-400 pg/mL and the sensitivity is 1.56 pg/mL.

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Target Background

(From Uniprot)
Plays an important role in the regulation of embryonic development, cell proliferation, cell differentiation and cell migration. May have a role in glial cell growth and differentiation during development, gliosis during repair and regeneration of brain tissue after damage, differentiation and survival of neuronal cells, and growth stimulation of glial tumors.
Gene References into Functions
  1. Our results indicate that miR-4317 can reduce Non-small cell lung cancer (NSCLC) cell growth and metastasis by targeting FGF9 and CCND2. These findings provide new evidence of miR-4317 as a potential non-invasive biomarker and therapeutic target for NSCLC. PMID: 30227870
  2. We have demonstrated for the first time that mutations in FGF9 cause craniosynostosis in humans and confirm that FGF9 mutations cause multiple synostoses. PMID: 28730625
  3. Forced expression of miR-187 inhibited the subcutaneous growth of cervical cancer cells in nude mice. Furthermore, FGF9 was found to be the downstream target of miR-187 in cervical cancer cells. PMID: 28849071
  4. Results show compelling data that homodimerization controls receptor binding specificity of FGF9 by keeping the concentration of active FGF9 monomers at a level, which is sufficient for a normal FGFR "c" isoform binding/signaling, but is insufficient for an illegitimate FGFR "b" isoform. Mutation in FGF9 N or C-terminus skews the ligand equilibrium toward active monomers causing off-target binding and activation of FGFb. PMID: 28757146
  5. The upregulation of FGF9 or the downregulation of miR-372-3p substantially retarded lung squamous cell carcinoma (LSCC) cell growth, mitosis, and invasion. MiR-372-3p enhanced LSCC cell proliferation and invasion through inhibiting FGF9. PMID: 28440022
  6. Data suggest that fibroblast growth factor 9 (FGF9) may provide the anti-apoptotic function and be useful as a novel independent marker for evaluating gastric cancer (GC) prognosis. PMID: 27166269
  7. CCND1 mRNA expression is increased by FGF9 in bovine theca cells and granulosa cells. PMID: 27816766
  8. The present data indicate that non-natural FGFR2 ligands, such as FGF10 and FGF19, are important factors in the pathophysiology of Aspert syndrome. PMID: 27339175
  9. In FGF9-overexpressing colorectal cancer cell lines, FGF9 overexpression induced strong resistance to anti-EGFR therapies via the enforced FGFR signal, and this resistance was cancelled by the application of an FGFR inhibitor. PMID: 26916220
  10. FGF9 and FGF18 increased the migratory capacities of human lung fibroblasts, and FGF9 actively modulated matrix metalloproteinase activity in idiopathic pulmonary fibrosis. PMID: 26773067
  11. we conclude that the S99N mutation in Fgf9 causes multiple synostoses syndrome (SYNS) via the disturbance of joint interzone formation. These results further implicate the crucial role of Fgf9 during embryonic joint development PMID: 28169396
  12. These studies identify FGF9 as a target of DICER1 in lung epithelium that functions as an initiating factor for pleuropulmonary blastoma. PMID: 25978641
  13. Data indicate that expressing either human FGF9 in the kidney subcapsular space of female BALB/c mice yielded rapidly expanding local tumors. PMID: 26183774
  14. FGF9 was strongly expressed in CAFs in comparison with NGFs, being compatible with microarray data indicating that FGF9 was a novel growth factor overexpressed in Cancer-associated fibroblasts PMID: 25925261
  15. the relative levels of FGF9 in relation to other members of the FGF family may prove key to understanding vulnerability or resilience in affective disorders. PMID: 26351673
  16. we found that Kl treatment impairs Nodal mRNA expression and Fgf9-mediated Nanos2 induction, reinforcing the antagonistic effect of these two growth factors on the meiotic fate of male germ cells PMID: 25766327
  17. our data demonstrate that FGF9 can initiate a complex astrocytic response predicted to compromise remyelination, while at the same time stimulating microglial/macrophage recruitment in multiple sclerosis lesions PMID: 25907862
  18. expression is associated with poor prognosis in lung cancer PMID: 24239165
  19. MAP3K1 mutations tilt the balance in the sex-determining pathways by downregulating SOX9 and FGF9. PMID: 24135036
  20. The data demonstrates that FGF9 IRES functions as a cellular switch to turn FGF9 protein synthesis 'on' during hypoxia, a likely mechanism underlying FGF9 overexpression in cancer cells. PMID: 24334956
  21. FGF9 was proved to be a direct target of miR-26a PMID: 24015269
  22. FGF9 can be associated with epithelial-to-mesenchymal transition and invasion by inducing VEGF-A expression in prostate cancer cells. PMID: 24511001
  23. In addition to the role of sex determination, FGF9 is expressed in postnatal Leydig cells and is involved in cell-to-cell interaction of testicular function. Aberrant expression of testicular FGF9 is associated with SCOS. PMID: 24011613
  24. The results demonstrate that FGF9 protein increased in regions of active cellular hyperplasia, metaplasia, and fibrotic expansion of idiopathic pulmonary fibrosis lungs. PMID: 23797050
  25. The importance of Fgf9 in hair follicle regeneration suggests that it could be used therapeutically in humans. PMID: 23727932
  26. neither DMRT1 nor FGF9 abnormalities are frequently involved in dysgenetic male gonad development in patients with non-syndromic 46,XY disorder of sex development. PMID: 22939835
  27. the FGF9(S99N) monomer is preferred to bind with the FGFR3c receptor to form an inactive complex, leading to impaired FGF signaling; the impaired FGF signaling is believed to be a potential cause of synostoses syndrome, implicating an important role for FGF9 in normal joint development PMID: 22920789
  28. These results indicate that FGF9 can stimulate proliferation and invasion in prostate cancer cells, thus FGF9 could be a candidate of a predictive factor for recurrence after radical prostatectomy. PMID: 22006051
  29. Fibroblast growth factor 9 was also overexpressed in all serous ovarian tumors with greater than 1000-fold increase in gene expression in 4 tumors. PMID: 21666490
  30. Microvessels formed in the presence of FGF9 had enhanced capacity to receive flow and were vasoreactive. PMID: 21499246
  31. FGF9 is an autocrine estromedin endometrial stromal growth factor that plays roles in cyclic proliferation of uterine endometrial stroma PMID: 12072406
  32. The capability of proliferation possessed by endometriotic stromal cell during menstruation when ovarian 17 beta-estradiol is in the nadir may be mediated, at least in part, by autocrined estrogen-stimulated expression of FGF-9 and its receptors. PMID: 14602803
  33. Recombinant human FGF-9 signaling enhances the intrinsic osteogenic potential by selectively expanding committed chick embryo osteogenic cell populations as well as inversely regulating bone morphogenetic protein 2 (BMP-2) and noggin gene expression. PMID: 15780951
  34. Mesothelial and epithelial transgenic FGF9 directs lung development by regulating mesenchymal growth, and the pattern and expression levels of mesenchymal growth factors that signal back to the epithelium. PMID: 16540513
  35. Our findings may also provide a molecular framework for considering roles for PGE2 in FGF-9-related embryonic development and/or human diseases. PMID: 16982695
  36. Polymorphic microsatellite in the 3'-UTR of FGF9 in patients with Gonadal dysgenesis. PMID: 17154280
  37. FGF9 mutant tumors showed normal membranous beta-catenin expression and the absence of mutation in the beta-catenin gene PMID: 18165946
  38. Inhibition of fibroblast growth factor 19 reduces tumor growth by modulating beta-catenin signaling. PMID: 18593907
  39. Androgen receptor-negative human prostate cancer cells induce osteogenesis in mice through FGF9-mediated mechanisms. PMID: 18618013
  40. the study ruled out microdeletions on the critical region as a common cause of Moebius syndrome and excluded FGF9 gene PMID: 19460469
  41. Data demonstrate that homodimerization autoregulates FGF9 and FGF20's receptor binding and concentration gradients in the extracellular matrix. PMID: 19564416
  42. Data demonstrate a previously uncharacterized mutation in FGF9 as one of the causes of Multiple synostoses syndrome, implicating an important role of FGF9 in normal joint development. PMID: 19589401

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Involvement in disease
Multiple synostoses syndrome 3 (SYNS3)
Subcellular Location
Protein Families
Heparin-binding growth factors family
Tissue Specificity
Glial cells.
Database Links

HGNC: 3687

OMIM: 600921

KEGG: hsa:2254

STRING: 9606.ENSP00000371790

UniGene: Hs.111

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