delta limonene/breast neoplasms

We have previously shown that transgenic rats carrying three copies of the human c-Ha-ras proto-oncogene (Hras128) are highly susceptible to N-methyl-N-nitrosourea (MNU) mammary carcinogenesis. All transgenic rats treated with 50 mg / kg MNU, i.v. at 50 days of age, were found to rapidly develop

BACKGROUND d-Limonene is a natural monoterpene abundant in Citrus essential oils. It is endowed with several biological activities, including inhibition of carcinogenesis and promotion of tumour regression. Recently, d-limonene has been shown to modulate autophagic markers in vitro at concentrations

D-limonene is one of the most common terpenes in nature. It is a major constituent in several citrus oils (orange, lemon, mandarin, lime, and grapefruit). D-limonene is listed in the Code of Federal Regulations as generally recognized as safe (GRAS) for a flavoring agent and can be found in common

OBJECTIVE D-Limonene is a natural monoterpene with pronounced chemotherapeutic activity and minimal toxicity in preclinical studies. A phase I clinical trial to assess toxicity, the maximum tolerated dose (MTD) and pharmacokinetics in patients with advanced cancer was followed by a limited phase II

d-Limonene has efficacy in preclinical models of breast cancer, causing > 80% of carcinomas to regress with little host toxicity. We performed a pilot study on healthy human volunteers to identify plasma metabolites of limonene and to assess the toxicity of supradietary quantities of d-limonene.

Perillyl alcohol is a natural product from cherries and other edible plants. Perillyl alcohol and d-limonene, a closely related dietary monoterpene, have chemotherapeutic activity against pancreatic, mammary, and prostatic tumors. In addition, perillyl alcohol, limonene, and other dietary

A number of dietary monoterpenes have chemopreventive activity against rat mammary cancer. For example, d-limonene, which comprises over 90% of orange peel oil, has chemopreventive activity against rodent mammary cancer during the initiation phase as well as the promotion/progression phase.

Breast cancer is an important disease site for chemopreventive intervention. The current in vivo rodent models for breast cancer do not adequately approximate the human disease. Thus, we developed a new series of models based on the direct introduction of activated oncogenes into in situ mammary

The monoterpene d-limonene exhibits chemotherapeutic and chemopreventive potential in breast cancer patients. D-limonene and its related compounds, perillyl alcohol and perillyl aldehyde, were chosen as candidate drugs for application in a screen for nontoxic inhibitors of cell migration. Using the

The monoterpenes represent a potentially new class of breast cancer therapeutic agents. We have shown that d-limonene induces the regression of advanced rat mammary adenocarcinomas. These regressing tumors have an increased cellular concentration of both the mannose-6-phosphate/insulin-like growth