⚠️ FOR RESEARCH PURPOSES ONLY — All compounds and data are for in vitro laboratory research and educational reference only. Not for human or animal use. Not evaluated by the FDA.
Research Library 28 Compounds

Research Peptide Blog Database

Peer-reviewed studies, clinical data, mechanism breakdowns, and molecular specifications — all in one place.

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Research Library Thymic Peptide

Thymosin Beta-4 · Actin-Sequestering Peptide

TB-500

Thymosin Beta-4 for wound healing research.

FormulaC212H350N56O78S
Mol. Weight4963.44 g/mol
CAS77591-33-4
PubMed Indexed Research Use Only

Published Scientific Research

Peer-reviewed studies investigating TB-500 sourced from PubMed-indexed journals for educational reference only.

In Vivo Study PubMed

Thymosin beta-4 participate in antibacterial immunity and wound healing in black tiger shrimp, Penaeus monodon.

Fish & shellfish immunology 2023
Lin C, Qiu L, Wang P et al.

Thymosin beta-4 (Tβ4) is a ubiquitous protein with multiple and diverse intracellular and extracellular functions in vertebrates, which play fundamental roles in innate immune against pathogens and wound healing. In this study, the full-length cDNA...

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Mechanism Study PubMed

beta-Thymosins.

Annals of the New York Academy of Sciences 2007
Hannappel E et al.

The development of thymosin beta(4) from a thymic hormone to an actin-sequestering peptide and back to a cytokine supporting wound healing will be outlined. Thymosin fraction 5 consists of a mixture of polypeptides and improves...

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Literature Review PubMed

Thymosin beta 4: A novel corneal wound healing and anti-inflammatory agent.

Clinical ophthalmology (Auckland, N.Z.) 2007
Sosne G, Qiu P, Kurpakus-Wheater M et al.

Thymosin beta 4 (Tbeta(4)) is a low molecular weight protein present in all cells except erythrocytes. Although Tbeta(4) is the major monomeric actin-sequestering peptide in cells and can depolymerize F-actin, evidence is mounting to support...

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In Vivo Study PubMed

Thymosin beta 4 promotes corneal wound healing and decreases inflammation in vivo following alkali injury.

Experimental eye research 2002
Sosne G, Szliter EA, Barrett R et al.

Previously, thymosin beta 4 (Tbeta(4)) was found to promote wound healing in full thickness skin wounds and heptanol debrided corneas. Here, the effect of Tbeta(4) was examined treatment on corneal wound healing and inflammation in...

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Clinical Trial PubMed

Thymosin beta 4 and the eye: the journey from bench to bedside.

Expert opinion on biological therapy 2018
Sosne G et al.

Thymosin beta 4 (Tβ4) has important applications in ocular repair and Phase 3 clinical trials using Tβ4 to treat dry eye and neurotrophic keratopathy are currently ongoing. These exciting clinical possibilities for Tβ4 in the...

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In Vivo Study PubMed

Thymosin beta-4 - A potential tool in healing middle ear lesions in adult mammals.

International immunopharmacology 2023
Bako P, Lippai B, Nagy J et al.

Acute tympanic membrane perforations primarily occur due to injury or infection in humans. In acute cases, nearly 80-94 % of the perforations heal spontaneously. In chronic cases, non-surgical treatment becomes significantly limited, and the perforation...

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Clinical Trial PubMed

Thymosin beta 4: A potential novel adjunct treatment for bacterial keratitis.

International immunopharmacology 2023
Sosne G, Berger EA et al.

Microbial keratitis is a rapidly progressing, visually debilitating infection of the cornea that can lead to corneal scarring, endophthalmitis, and perforation. Corneal opacification or scarring, a complication of keratitis, is among the leading causes of...

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In Vivo Study PubMed

Thymosin Beta 4 Is a Potential Regulator of Hepatic Stellate Cells.

Vitamins and hormones 2016
Kim J, Jung Y et al.

Liver fibrosis, a major characteristic of chronic liver disease, is inappropriate tissue remodeling caused by prolonged parenchymal cell injury and inflammation. During liver injury, hepatic stellate cells (HSCs) undergo transdifferentiation from quiescent HSCs into activated...

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Research Notice: All studies are presented for educational and informational purposes only. These compounds are for in vitro laboratory research use only (RUO). Not for human or animal use. Not evaluated or approved by the FDA.
Compound Information

Technical Specifications

🔬 Molecular Profile

TypeThymic Peptide
ClassificationSynthetic Analog
CAS Number77591-33-4
Mol. Weight4963.44 g/mol
FormulaC212H350N56O78S
OriginThymus

🧊 Storage Requirements

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Lyophilized (powder) -20°C up to 2 years
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Reconstituted 2-8°C up to 30 days
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Working solution Use within 24 hours
Protect from light • Avoid repeated freeze-thaw cycles
Research Grade

Research-Grade TB-500

≥98% purity, third-party COA verified, lyophilized for stability. For in vitro laboratory research use only.

⚠️ Research Use Only. Not for human or animal use. Not evaluated or approved by the FDA.

⚠️ Important Research Notice

All compounds listed are intended exclusively for in vitro laboratory research by qualified professionals. Not for human or animal consumption. Not approved by the FDA for any diagnostic, therapeutic, or clinical purpose. All research findings are sourced from peer-reviewed journals for educational reference only. Not to be interpreted as medical advice or product claims.