Leptin promotes melanoma tumor growth in mice related to increasing circulating endothelial progenitor cells numbers and plasma NO production
2011

Leptin and Melanoma Growth in Mice

Sample size: 32 publication Evidence: moderate

Author Information

Author(s): Amjadi Fatemehsadat, Javanmard Shaghaygh Haghjooy, Zarkesh-Esfahani Hamid, Khazaei Majid, Narimani Manijeh

Primary Institution: Isfahan University of Medical Sciences

Hypothesis

Leptin may increase the EPC numbers and NO production in peripheral blood of melanoma tumor bearing mice.

Conclusion

Leptin causes melanoma growth likely through increased nitric oxide production and circulating endothelial progenitor cell numbers.

Supporting Evidence

  • Leptin treatment resulted in significantly larger tumors compared to control groups.
  • Circulating EPC numbers were significantly higher in leptin-treated mice.
  • Plasma levels of nitric oxide were significantly increased in leptin-treated mice.

Takeaway

Leptin, a hormone from fat, helps tumors grow by increasing certain blood cells and chemicals in the body.

Methodology

B16F10 melanoma cells were injected into mice, which were then treated with leptin or control substances, and analyzed for tumor growth and blood samples.

Limitations

The study was conducted in mice, which may not fully represent human responses.

Participant Demographics

Male C57BL/6 mice, aged 6 to 8 weeks.

Statistical Information

P-Value

p<0.05

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.1186/1756-9966-30-21

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