High-performance liquid chromatographic assay for Melanotan-1 ([Nle4-DPhe7]alpha-melanocyte-stimulating hormone) in biological matrices.
Surendran. N N; Ugwu. S O SO; Sterling. E J EJ; Blanchard. J J
Key Findings
- A sensitive, specific HPLC assay for Melanotan‑1 was developed and validated.
- The assay is linear from 100‑1000 ng/mL with precision typically under 8.7% CV.
- The method was successfully used to study MT‑1 transport across Caco‑2 cell layers.
Practical Outcomes
- This shows a reliable way to quantify Melanotan‑1 in research settings, but it requires specialized HPLC equipment. For most biohackers, the study doesn’t change dosing or usage guidelines, though it could help labs verify purity or pharmacokinetic data.
Summary
Scientists created a lab test that can accurately measure the amount of Melanotan‑1 in cell culture fluid and human blood using HPLC, showing it works well across a range of concentrations and is reliable over multiple runs.
Abstract
The overall objective of this research was to develop a sensitive, specific, and stability-indicating HPLC assay for the determination of the [Nle4-DPhe7]alpha-melanocyte-stimulating hormone analog known as Melanotan-1 (MT-1) in biological matrices, i.e., cell culture transport media and human plasma. Separation was accomplished isocratically within 8.0 min using a C8 reversed-phase column. The mobile phase consisted of 0.1 M phosphate buffer-acetonitrile (80:20, v/v) with 18 microliters/l triethylamine at pH 2.50. The flow-rate was 1 ml/min with detection at 214 nm. Standard curves (n = 5) were linear over the concentration range 100-1000 ng/ml. The precision, accuracy, intra- and inter-day variations were good with C.V.s typically within 8.7% for concentrations greater than 100 ng/ml. This method was applied to a study of the transport of MT-1 in the Caco-2 cell monolayer model.
Study Information
pubmed
1995
1995-08-18T00:00:00.000Z
10.1016/0378-4347(95)00177-8
12
5