Isolation of thymosin alpha 1 from thymosin fraction 5 of different species by high-performance liquid chromatography.
Low. T L TL; McClure. J E JE; Naylor. P H PH; Spangelo. B L BL; Goldstein. A L AL
Key Findings
- Thymosin‑alpha‑1 can be isolated from thymus fraction 5 of several animal species using HPLC.
- The isolated peptide matches bovine thymosin‑alpha‑1 in both retention time and immunoreactivity.
- Fresh thymus extracts lack a detectable alpha‑1 peak, implying it’s produced as a precursor form.
Practical Outcomes
- For DIY biohackers, this shows that getting pure thymosin‑alpha‑1 requires sophisticated chromatography and isn’t as simple as grinding fresh thymus tissue. The study confirms commercial sources likely use processed extracts, but it doesn’t provide dosing or direct usage guidance.
Summary
Scientists used a chromatography technique to pull out the immune‑boosting peptide thymosin‑alpha‑1 from the thymus of cows, pigs, sheep and mice. The extracted piece behaved just like the known bovine version, but fresh thymus tissue didn’t show any detectable peptide, suggesting it’s made as a hidden precursor in the body.
Abstract
High-performance liquid chromatography (muBondapak C18 column with 0.05% trifluoroacetic acid in acetonitrile as solvent system) was used to isolate thymosin alpha 1 (alpha 1) from thymosin fraction 5 (f5) of various species (calf, pig, sheep and mouse). Each of the f5 preparations gave a protein peak similar in retention time to bovine thymosin alpha 1. This peak coincided with the immunoreactive peak determined by a radioimmunoassay for alpha 1. Chromatographic analysis of fresh thymus tissue extracts using a high-performance liquid chromatographic similar system did not reveal a detectable protein peak or immunoreactive peak at the alpha 1 position. Our results suggest that alpha 1 may be synthesized in a precursor form in animal tissues.
Study Information
pubmed
1983
1983-08-26T00:00:00.000Z
10.1016/s0021-9673(01)90924-0