| Field | Specification |
|---|---|
| Mfr No | |
| Alternative Names | Insulin-like growth factor I ;Igf1 ; |
| Assay Time | |
| Assay Type | |
| Detection Range | |
| Expression System | |
| Gene ID | |
| Immunogen | Expression system for standard: E.coli; Immunogen sequence: G49-A118 |
| Product Type | |
| Reactivity | |
| Sample Type(s) | cell culture supernatants, cell lysates, serum and plasma (heparin, EDTA). |
| Sensitivity | |
| Storage | |
| Target | |
| UniProt # |
Background
Also known as: Insulin-like growth factor I, Igf1.
Mouse IGF-1 (IGF1) is widely studied as a molecular readout in experimental models where changes in protein abundance reflect underlying biology. This target is frequently investigated in Molecular & Cellular Biology research contexts. Growth factors and morphogens regulate cell proliferation, differentiation, survival, and tissue remodeling by engaging surface receptors and activating downstream signaling cascades. Their activity is often context-dependent, shaped by receptor availability, extracellular matrix binding, and feedback regulation.
Biological function and mechanism
In many systems, growth-factor signaling integrates environmental cues with developmental or repair programs. Downstream pathways frequently include kinase signaling modules and transcriptional responses that alter cell-cycle control, migration, or lineage specification. Because these signals can be transient, quantitative measurements are useful for understanding timing and dose dependence.
Why it matters in research
- Pathway engagement: Concentration changes can indicate activation of growth, survival, or differentiation programs.
- Tissue remodeling: Levels may relate to repair, fibrosis, angiogenesis, or developmental patterning in model systems.
- Mechanistic studies: Tracking abundance alongside downstream markers helps connect ligand availability to signaling output.
Disease and translational relevance
Altered growth-factor signaling has been reported across diverse conditions, including cancer biology, cardiovascular remodeling, wound repair, and metabolic dysfunction. For research interpretation, consider whether the measured form represents active ligand, bound complexes, or processed fragments, as these can influence apparent levels.
Sample data
| Concentration (pg/ml) | 0 | 62.5 | 125 | 250 | 500 | 1000 | 2000 | 4000 |
| O.D. | 0.019 | 0.069 | 0.126 | 0.239 | 0.441 | 0.834 | 1.441 | 2.086 |
Intra/inter assay consistency
| Intra-Assay Precision | Inter-Assay Precision | |||||
|---|---|---|---|---|---|---|
| Sample | 1 | 2 | 3 | 1 | 2 | 3 |
| n | 16 | 16 | 16 | 24 | 24 | 24 |
| Mean (pg/ml) | 75 | 604 | 1350 | 69 | 617 | 1307 |
| Standard deviation | 5.85 | 24.76 | 93.15 | 6.69 | 30.23 | 92.79 |
| CV (%) | 7.8% | 4.1% | 6.9% | 9.7% | 4.9% | 7.1% |
Kit components
Description|Quantity Pre-coated 96-well strip microplate|1 Standard|2 vials Biotinylated antibody (100x)|100ul Avidin-Biotin-Peroxidase Complex (100x)|100ul Sample Diluent|30ml Antibody Diluent|12ml Avidin-Biotin-Peroxidase Diluent|12ml Color Developing Reagent (TMB)|10ml Stop Solution|10ml Wash Buffer (25x)|20ml Adhesive plate sealers|4Materials required but not provided
- Microplate Reader capable of reading absorbance at 450nm.
- Incubator.
- Automated plate washer (optional).
- Pipettes and pipette tips capable of precisely dispensing 0.5 µl through 1 ml volumes of aqueous solutions.
- Multichannel pipettes are recommended for large amount of samples.
- Deionized or distilled water.
- 500ml graduated cylinders.
- Test tubes for dilution.
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►What positive and negative controls should I include?
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- Zhou et al. (2023). Monocarboxylate transporter 4 promotes the migration of non‑cancerous L929 fibroblast cells by activating the IGF1/IGF1R…. Oncology Letters.
- Xiao et al. (2022). Serine metabolism orchestrates macrophage polarization by regulating the IGF1–p38 axis. Cellular & Molecular Immunology.
- Zheng et al. (2022). Early Dietary Exposures Epigenetically Program Mammary Cancer Susceptibility through Igf1-Mediated Expansion of the Mamm…. Cells.
- Liang et al. (2021). Generation and Characterization of a New Resistance to Thyroid Hormone Mouse Model with Thyroid Hormone Receptor Alpha G…. THYROID.
- Aghdam et al. (2021). Impairment of IGF-1 Signaling and Antioxidant Response Are Associated with Radiation Sensitivity and Mortality. INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES.
- Helene et al. (2020). Prkar1a haploinsufficiency ameliorates the growth hormone excess phenotype in Aip-deficient mice. HUMAN MOLECULAR GENETICS.
- Zhou et al. (2020). Omentin-1 attenuates adipose tissue inflammation via restoration of TXNIP/NLRP3 signaling in high-fat diet-induced obese…. FUNDAMENTAL & CLINICAL PHARMACOLOGY.
- Qiangcheng et al. (2019). miR-29b-3p regulated osteoblast differentiation via regulating IGF-1 secretion of mechanically stimulated osteocytes. CELLULAR & MOLECULAR BIOLOGY LETTERS.
- Wang et al. (2015). Adenoviral vector expressing IGF-1 protects murine chondrogenic ATDC5 cells against hydrogen peroxide-induced mitochondr…. JOURNAL OF TOXICOLOGICAL SCIENCES.
- Song et al. (2014). Reducing blood glucose levels in TIDM mice with an orally administered extract of sericin from hIGF-I-transgenic silkwor…. FOOD AND CHEMICAL TOXICOLOGY.
- Madlen et al. (2014). Hepatic Hedgehog signaling contributes to the regulation of IGF1 and IGFBP1 serum levels. Cell Communication and Signaling.
- E. et al. (2014). Biochemical/metabolic changes associated with hepatocellular carcinoma development in mice. TUMOR BIOLOGY.
- Qu et al. (2011). Involvement of IGF-I signaling pathway in the regulation of steroidogenesis in mouse Leydig cells treated with fenvalera…. TOXICOLOGY.
- Chen et al. (2007). Diversities in hepatic HIF-1, IGF-I/IGFBP-1, LDH/ICD, and their mRNA expressions induced by CoCl2 in Qinghai-Tibetan pla…. AMERICAN JOURNAL OF PHYSIOLOGY-REGULATORY INTEGRATIVE AND COMPARATIVE PHYSIOLOGY.