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Research Library

A-Z Conditions  Participate in ORR

Differential role of cannabinoids in the pathogenesis of skin cancer

  • Journal : Life Sciences
  • Publication Year : 2015
  • Authors : Nicole Glodde, Mira Jakobs, Tobias Bald, Thomas Tüting, & Evelyn Gaffal

Aim: Cannabinoids (CB) like Δ 16 9 -tetrahydrocannabinol (THC) can induce cancer cell apoptosis and inhibit angiogenesis. However, the use of cannabinoids for the treatment of malignant diseases is discussed 17 controversially because of their immunomodulatory effects which can suppress anti-tumor immunity. Here 18 we investigated the role of exogenous and endogenous cannabinoids in mouse skin cancer. 19

Main methods: First we examined the effect of THC, which binds to CB receptors (CB1, CB2), on the growth of the 20 mouse melanoma cell lines B16 and HCmel12 in vitro and in vivo in wild type (WT) and CB1/CB2-receptor 21 deficient mice (Cnr1/2 22 −/−). Next we evaluated the role of the endogenous cannabinoid system by studying the growth of chemically induced melanomas, fibrosarcoma and papillomas in WT and Cnr1/2 23 −/− mice.

Key findings: THC significantly inhibited tumor growth of transplanted HCmel12 melanomas in a CB receptor- 24 dependent manner in vivo through antagonistic effects on its characteristic pro-inflammatory microenvironment. 25 Chemically induced skin tumors developed in a similar manner in Cnr1/2 26 −/− mice when compared to WT mice.

Significance: Our results confirm the value of exogenous cannabinoids for the treatment of melanoma but do not 27 support a role for the endogenous cannabinoid system in the pathogenesis of skin cancer

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Conditions:

  • Cancer

Research Information:

Research Keywords:

  • ∆9-tetrahydrocannabinol (THC), Endocannabinoid system, inflammation, Melanoma, Skin cancer

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