Immunomodulating and antimetastatic activity of thymic peptides in BALB/c mice.
Beuth. J J; Schierholz. J M JM; Mayer. G G
Key Findings
- Daily sub‑cutaneous doses of 1‑10 µg thymic peptide increased peripheral blood immune cell counts and activity by day 14.
- When given after cancer cells were injected, the peptide reduced liver metastases in mice.
- The anti‑metastatic effect was dose‑dependent and significant at doses as low as 1 µg per mouse.
Practical Outcomes
- The study suggests that tiny, short‑term doses of thymic peptides can modulate the immune system and may help limit cancer spread in animal models. However, because the work is limited to mice and uses a specific peptide mix, it does not provide a ready‑to‑use protocol for humans. Biohackers should view this as early‑stage evidence that warrants caution and further research before trying similar dosing in people.
Summary
In a mouse study, a low‑dose thymic peptide given under the skin for a week boosted blood immune cell numbers and activity, and later reduced the number of liver tumors that formed after cancer cells were injected. The effect was seen with very small amounts (1‑10 µg per mouse).
Abstract
The immunomodulating and antimetastatic activity of a clinically approved low molecular weight, standardized thymic peptide (TP) preparation was evaluated in BALB/c-mice. Daily subcutaneous application of TP (7 consecutive days, 1 and 10 micrograms per mouse) upregulated counts and activity of peripheral blood cells, as measured on day 14. To check the influence of TP on experimental liver metastases (liver colonization), RAW H10 lymphosarcoma cells were intravenously inoculated into BALB/c-mice. TP (1,10,100 micrograms/mouse) was subcutaneously administered daily for 7 consecutive days starting 24 hrs after tumor cell challenge. Liver colonization was investigated on day 14 after tumor cell inoculation and demonstrated a statistically significant (p < 0.05) reduction of experimental liver metastases for TP treated mice.
Study Information
pubmed
1999