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Antitumor effects of Auraptene in 4T1 tumor-bearing Balb/c mice
Mohammad Reza Shiran1,2, Davar Amani3, Abolghasem Ajami4
1Department of Pharmacology, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran.
Objectives:
Breast cancer is a common malignant tumor in women with limited treatment options and multiple side effects. Today, the anti-cancer properties of natural compounds have attracted widespread attention from researchers worldwide.
Methods:
In this study, we treated 4T1 tumor-bearing Balb/c mice with intraperitoneal injection of Auraptene, paraffin oil, and saline as two control groups. Body weight and tumor volume were measured before and after treatment. Hematoxylin and eosin (H & E) staining and immunohistochemistry of Ki-67 were used as markers of proliferation. In addition, ELISA assays were performed to assess serum IFN-γ and IL-4 levels.
Results:
There was no significant change in body weight in all animal groups before and after treatment. 10 days after the last treatment, Auraptene showed its anti-cancer effect, which was confirmed by the smaller tumor volume and H & E staining. In addition, Ki-67 expression levels were significantly reduced in tumor samples from the Auraptene-treated group compared to the paraffin oil and saline-treated groups. In addition, in tumor-bearing and normal mice receiving Auraptene treatment, IL-4 serum production levels were reduced, while serum levels of IFN-γ were significantly up-regulated in tumor-bearing mice after Auraptene treatment.
Conclusions:
In the case of inhibition of tumor volume and Ki-67 proliferation markers, Auraptene can effectively inhibit tumor growth in breast cancer animal models. In addition, it might increases Th1 and CD8 + T cell responses after reducing IL-4 serum levels and IFN-γ upregulation, respectively. However, further research is needed to clarify its mechanism of action.
Insights
Auraptene demonstrated anti-cancer effects in a breast cancer mouse model by reducing tumor volume and proliferation markers. This natural compound may enhance immune responses, warranting further investigation into its mechanism.
Area of Science:
- Oncology
- Natural Products Chemistry
- Immunology
Background:
- Breast cancer is a prevalent malignancy in women, often associated with limited therapeutic options and significant side effects.
- Natural compounds are gaining attention for their potential anti-cancer properties.
- Auraptene is a naturally occurring compound with potential therapeutic applications.
Purpose of the Study:
- To investigate the anti-cancer effects of Auraptene in a 4T1 breast cancer mouse model.
- To evaluate Auraptene's impact on tumor growth, proliferation, and immune markers.
- To explore the potential of Auraptene as a natural therapeutic agent for breast cancer.
Main Methods:
- 4T1 tumor-bearing Balb/c mice were treated with Auraptene via intraperitoneal injection.
- Tumor volume and body weight were monitored throughout the study.
- Histopathological analysis (H&E staining) and immunohistochemistry for Ki-67 were performed on tumor tissues.
- Serum levels of Interferon-gamma (IFN-γ) and Interleukin-4 (IL-4) were quantified using ELISA.
Main Results:
- Auraptene treatment resulted in significantly smaller tumor volumes compared to control groups.
- Ki-67 expression, a marker of cell proliferation, was significantly reduced in Auraptene-treated tumors.
- Serum levels of IL-4 were decreased, while IFN-γ levels were increased in Auraptene-treated tumor-bearing mice.
- No significant changes in body weight were observed across treatment groups.
Conclusions:
- Auraptene effectively inhibits tumor growth and proliferation in a breast cancer animal model.
- Auraptene may modulate immune responses by reducing IL-4 and upregulating IFN-γ, potentially enhancing Th1 and CD8+ T cell activity.
- Further research is necessary to elucidate the precise mechanisms of Auraptene's anti-cancer action.
