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The Human Follistatin ELISA Development Kit represents a cutting-edge analytical tool designed for the precise quantification of human follistatin in various biological matrices. This sophisticated sandwich enzyme-linked immunosorbent assay (ELISA) system provides researchers with a reliable platform to investigate the complex roles of this crucial glycoprotein in metabolic regulation, muscular development, and reproductive physiology. With its exceptional sensitivity and robust performance characteristics, the kit enables accurate detection of follistatin across physiologically relevant concentrations, making it an invaluable asset for both basic research and therapeutic development applications.
Follistatin is a multifunctional glycoprotein that plays pivotal roles in numerous biological processes through its ability to bind and neutralize members of the transforming growth factor-β (TGF-β) superfamily, particularly activins and myostatin. Originally identified as a follicle-stimulating hormone (FSH) suppressor in the pituitary gland, follistatin has since been recognized as a key regulator in muscle growth, metabolic homeostasis, and reproductive function. The protein exists in multiple isoforms derived from alternative splicing and post-translational modifications, with follistatin-315 and follistatin-288 being the predominant circulating forms.
Figure 1.Structure of Follistatin.
The significance of follistatin quantification extends across multiple research domains. In muscular biology, follistatin serves as a potent negative regulator of myostatin, thereby promoting muscle hypertrophy and regeneration. In metabolic research, follistatin influences glucose metabolism and insulin sensitivity through its interactions with activins. Furthermore, follistatin plays critical roles in ovarian folliculogenesis, embryonic development, and wound healing processes. The development of reliable follistatin detection methods is therefore essential for advancing our understanding of these complex physiological systems and their associated pathologies. This ELISA development kit employs a sophisticated sandwich immunoassay format that ensures high specificity and sensitivity. The system utilizes a monoclonal antibody pre-coated onto microplates for optimal antigen capture, combined with a highly specific detection antibody that recognizes distinct epitopes on the follistatin molecule. The assay incorporates advanced signal amplification technology, providing researchers with the flexibility to optimize detection parameters according to their specific experimental requirements while maintaining excellent reproducibility and linearity across the measurable range.
Sample Compatibility
Sensitivity Range
Main Uses
Product Specifications
Intended Use & Research Applications
Stability
Key Features of the Product
| Parameter | Details |
| Product name | Human Follistatin ELISA Development Kit |
| Sample | TBD |
| Intended Use | Human Follistatin ELISA Development Kit contains the key components required for the quantitative measurement of natural and/or recombinant Follistatin in a sandwich ELISA format. Using the ELISA protocol described below, this kit provides sufficient reagents to assay Follistatin in approximately 1500 ELISA plate wells. |
| General Description | Follistatin (FST) is a glycosylated single-chain protein. It specifically inhibits the secretion of FSH from the pituitary. Follistatin/activin-binding protein binds to heparan sulfate side chains of proteoglycans on the granulosa cell surface to regulate the various actions of activin. Follistatin regulates a variety of biological functions, including cell proliferation, differentiation, and apoptosis. Follistatin plays a critical role in the production of multiple-organ metastasis, predominantly by inhibiting the angiogenesis.3 |
| Storage | Store the kit reagents at 2-8°C. For more detailed information, please download the following document on our website. |
| Standard Curve |  |
Unlike general-purpose ELISA kits, this kit is tailored to muscle biology research:
Validated for muscle cell culture supernatants (e.g., C2C12 myoblasts, primary human myotubes), a key sample type in myostatin pathway studies—many competing kits only support serum/plasma.
The sample dilution buffer contains protease inhibitors to prevent FST degradation in muscle cell supernatants (FST is prone to proteolysis in cell culture media), ensuring reliable results.
Exceptional Sensitivity for Critical Low-Level Detection
This kit is engineered for high sensitivity, capable of accurately quantifying the low levels of progesterone present in the follicular phase of the menstrual cycle and in men. This is essential for obtaining clinically meaningful data across all physiological states.
High Specificity
The monoclonal capture antibody and polyclonal detection antibody target non-overlapping epitopes of human FST, ensuring no cross-reactivity with MSTN or other related proteins—critical for accurate myostatin pathway studies.
User-Friendly Operation
Pre-coated microplates and ready-to-use reagents eliminate complex preparation steps (e.g., antibody coating, reagent dilution). The detailed manual includes standard curve plotting guidelines and troubleshooting tips, suitable for both novice and experienced researchers.
The Human Follistatin ELISA Development Kit provides researchers with a sophisticated and versatile tool for investigating this important regulatory protein across multiple physiological systems. The combination of exceptional sensitivity, broad isoform recognition, and development flexibility makes this kit particularly valuable for advancing our understanding of follistatin's roles in muscle biology, metabolic regulation, and reproductive function. With its robust performance characteristics and comprehensive support resources, this development kit serves as an ideal platform for both basic research and therapeutic development applications in these rapidly evolving fields of biomedical science.
A1: Follistatin functions as a potent endogenous inhibitor of myostatin, a key negative regulator of muscle growth. The follistatin-myostatin axis represents a crucial pathway controlling muscle mass and regeneration. Accurate quantification of follistatin is therefore essential for understanding muscle physiology and developing therapeutic strategies for muscle-wasting disorders.
A2: The kit employs carefully selected antibody pairs that recognize epitopes conserved across major follistatin isoforms. While the detection efficiency may vary slightly between isoforms, the assay provides comprehensive detection capability for both follistatin-315 and follistatin-288, along with other minor variants. Researchers can refer to the detailed cross-reactivity data provided in the kit documentation.
A3: For tissue samples, we recommend homogenization in appropriate buffer systems followed by centrifugation to remove insoluble material. The supernatant should be aliquoted and stored at -80°C until analysis. Optimal homogenization protocols may vary by tissue type, and researchers should consider implementing protease inhibitors to maintain protein integrity during processing.
A4: Yes, the basic assay format is compatible with automation and can be scaled for higher throughput applications. The development kit format provides researchers with the flexibility to optimize parameters for automated liquid handling systems while maintaining assay performance characteristics.
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