Follistatin-344

What Is Follistatin-344 (FST-344)?

Follistatin-344 (FST-344) is a synthetic research peptide widely investigated for its role in modulating myostatin, activin, and other signaling molecules within the TGF-β superfamily. As a naturally occurring binding protein, follistatin functions to neutralize activin and interact with growth regulators, making FST-344 a valuable tool for laboratory studies focused on skeletal muscle biology, cellular differentiation, and tissue development pathways.

Key identifier: Follistatin-344 is not a therapeutic or performance-enhancing agent. It is supplied exclusively for in vitro scientific research and analytical applications.

Why Do Researchers Use Follistatin-344?

Scientific interest in Follistatin-344 stems from its ability to influence critical biological cascades. Researchers utilize this peptide to investigate:

• Myostatin signaling pathways – exploring negative regulators of muscle growth.
• Activin receptor inhibition – studying downstream effects on cell proliferation.
• TGF-β superfamily interactions – mapping cross-talk between growth factors.
• Skeletal muscle regeneration models – observing cellular responses in controlled environments.
• Cellular growth and differentiation – understanding how binding proteins modulate tissue homeostasis.
• Primary Research Applications for FST-344

Follistatin-344 vs. Other Follistatin Variants

Unlike FST-288 or FST-315, Follistatin-344 contains a unique structural configuration that influences its binding affinity and stability. Researchers select FST-344 for assays requiring a specific isoform with distinct heparin-sulfate interactions, making it relevant for cell-surface binding studies and signaling cascade mapping.

Important Research Considerations

• Investigational Status: Follistatin-344 remains a non-clinical, research-grade compound. Published findings involving follistatin gene therapy or animal models do not imply equivalent outcomes with commercially available synthetic peptides.
• Handling Requirements: Lyophilized FST-344 should be reconstituted in sterile buffers and stored at controlled temperatures to maintain structural integrity.
• Purity Verification: Always confirm batch-specific purity via HPLC or mass spectrometry before experimental use.

Regulatory & Safety Disclosure

For laboratory and analytical research use only.
Not approved for human consumption, therapeutic intervention, diagnostic procedures, or as a dietary supplement. This description is provided for scientific and educational purposes and does not constitute medical or clinical advice.

Q: What is Follistatin-344 used for in research?
A: Follistatin-344 is used to study myostatin and activin signaling pathways, skeletal muscle development, and TGF-β-related cellular processes in laboratory settings.

Q: Is Follistatin-344 safe for human use?
A: No. Follistatin-344 is strictly for in vitro research use only and is not approved for human consumption or clinical application.

Q: How does FST-344 differ from other follistatin isoforms?
A: FST-344 has a distinct amino acid sequence and heparin-binding domain, making it suitable for specific cell-surface interaction and signaling assays.