Description

Technical Parameters

Introduction

TB5002

musclepic 1

Products Description

Part 1: Classification System

Based on purity and application, TB500 can be divided into three main types:

Pharmaceutical Grade TB500: Purity is typically higher than 99%, verified by high-performance liquid chromatography (HPLC), with extremely strict impurity control. Primarily used in pharmaceutical development, preclinical research, and experimental therapeutic studies in high-end medical institutions.

Research Grade TB500: Purity is generally between 95% and 98%, commonly used in research institutions, laboratories, and internal experiments at biotechnology companies, such as cell growth, tissue repair models, and pharmacodynamic studies.

Industrial Grade TB500: Primarily used for large-scale formulation development or non-clinical animal experiments, with relatively lower purity (90%–95%) and slightly more lenient impurity requirements.

The main differences between these three types of TB500 lie in purity, manufacturing process, and testing standards. High-quality TB500 typically undergoes lyophilization and multiplex testing to ensure the integrity of the active peptide chain structure and good stability.

Part 2 Molecular Structure and Physicochemical Properties

TB500 is a short-chain polypeptide composed of 43 amino acid residues, with a molecular weight of approximately 4963 Daltons (Da) and the molecular formula C₂₁₄H₃₄₀N₅₆O₆₄S. Its amino acid sequence is identical to that of natural thymic β-peptide, which is the main active component of the natural protein. TB500 has an isoelectric point of approximately 5.2, classifying it as a weakly acidic polypeptide.

Physically, TB500 raw material powder is a white or off-white lyophilized powder with no obvious odor and low hygroscopicity. It dissolves in water to form a colorless, transparent liquid. Its aqueous solution is stable within the pH range of 6.0–7.5 and is sensitive to acidic or alkaline environments. The optimal solvents are water for injection or physiological saline; it can also be dissolved in small amounts of buffer solutions to maintain structural stability.

TB500 lyophilized powder is primarily produced using a vacuum freeze-drying process, dehydrating and shaping at temperatures below -40°C to form a porous, fluffy powder structure that facilitates storage and reconstitution. The finished product should be stored in a dry, light-protected, and low-temperature environment, typically at 2–8°C. For long-term storage, it can be frozen at -20°C.

Part 3: Advantages and Biological Effects

Promoting Tissue Repair and Regeneration

TB500 stimulates cell migration, particularly of endothelial cells and keratinocytes, aiding in wound healing and angiogenesis. It promotes cell movement by regulating actin polymerization, accelerating the repair of damaged tissue. Studies show that TB500 exhibits significant repair effects in muscle tears, ligament injuries, postoperative recovery, and skin wound healing.

Improving Inflammation and Anti-fibrotic Effects

TB500 can reduce the expression of inflammatory factors (such as IL-6 and TNF-α) while upregulating anti-inflammatory cytokines (such as IL-10), helping to alleviate chronic inflammatory responses. Furthermore, it can inhibit excessive fibroblast proliferation, preventing tissue hardening and fibrosis.

Promoting Muscle Growth and Functional Recovery

In exercise physiology studies, TB500 promotes muscle fiber regeneration by enhancing the activity of muscle satellite cells. It not only helps injured muscles recover faster but also improves local blood flow and oxygen supply, positively impacting exercise fatigue and muscle repair.

Neuroprotection and Cardiovascular Support

TB500 possesses neuroprotective properties, reducing oxidative stress damage and showing repair potential in experimental studies of neurological diseases. It can also improve the repair process of myocardial tissue, promote angiogenesis and myocyte regeneration at damaged sites of the heart, and has a positive effect on animal models of myocardial infarction.

Other Potential Applications

Recent studies have indicated that TB500 may show potential therapeutic effects in corneal injury, diabetic wound healing, pulmonary fibrosis, and chronic liver injury. Due to its low immunogenicity and high tissue compatibility, TB500 is considered one of the important molecules for next-generation tissue engineering and regenerative medicine.

Part 4 Appearance and Quality Characteristics

High-quality TB500 lyophilized powder should be a uniform, fine, white or pale white spongy solid, dry and free of lumps. The solution after reconstitution should be clear and transparent, without turbidity or precipitation. The presence of obvious yellow, brown, or crystalline particles usually indicates improper storage conditions or oxidation of the raw material.

From a tactile perspective, high-quality powder is loose, non-moisture-feeling, and does not easily absorb moisture from air; inferior powder may agglomerate due to excessive moisture content. HPLC purity testing should show that the main peak area accounts for more than 98% of the total peak area, and impurity peaks are controlled within 1%.

Part 5 Production Process and Testing Standards

TB500 is mostly produced using solid-phase peptide synthesis (SPPS) technology, employing a stepwise elongation strategy with Fmoc protection. The coupling and deprotection steps of each amino acid are completed under an inert atmosphere to ensure peptide chain integrity. After synthesis, the target product is obtained through cleavage, purification, and lyophilization.

The testing standards include:

Appearance inspection: White lyophilized powder

Content determination: Peptide purity ≥98% (HPLC)

Molecular weight verification: Confirmed by mass spectrometry (MS)

Microbiological limits: Must meet pharmacopoeia standards

Moisture content: ≤5%

Endotoxin: <0.1 EU/mg

These standards ensure the high purity and bioactivity of TB500.

Part 6 Storage and Stability

TB500 exhibits good stability under freezing conditions. It can be stored for 24 months in its dry powder state; after reconstitution, if stored at 4°C, it should be used within 7 days; for longer storage, it should be frozen at -20°C to prevent a decrease in activity. Avoid repeated freeze-thaw cycles to prevent damage to the peptide chain structure.

Part 7 Application Areas and Research Progress

Sports Rehabilitation: TB500 is used in sports medicine research to explore the recovery mechanisms of muscle strains, ligament tears, and soft tissue injuries of joints.

Regenerative Medicine: It can serve as a functional repair factor for tissue engineering scaffolds, improving the survival rate and tissue integration of transplanted stem cells.

Skin Repair: Studies have shown that TB500 can accelerate epidermal cell migration, promote wound closure, and reduce scar formation.

Cardiovascular Research: In animal experiments using a myocardial infarction model, TB500 can promote angiogenesis and cardiomyocyte repair, improving cardiac function.

Nervous System Research: Its anti-apoptotic and antioxidant capabilities make it a potential therapeutic molecule in studies of cerebral ischemia and spinal cord injury.

Part 8: Safety and Precautions

TB500 showed extremely low toxicity in animal experiments, with no significant mutagenic or teratogenic effects. Due to its endogenous peptide structure, it is well tolerated in humans. However, repeated freeze-thaw cycles and high-temperature exposure should be avoided during experiments. Reconstitution must be strictly performed according to the experimental design ratio to avoid contamination.

Part 9: Conclusion

In summary, TB500 is a high-quality peptide raw material with a well-defined structure and significant activity. It exhibits broad biological functions in promoting tissue repair, anti-inflammation, anti-fibrosis, and supporting nerve regeneration. With its high purity, high stability, and broad application prospects, TB500 has become a key focus of modern biopharmaceutical and regenerative medicine research. In the future, with improvements in preparation processes and in-depth clinical research, TB500 is expected to play a crucial role in more medical fields, becoming an important bridge connecting traditional drug therapy and bioregenerative technologies.