Antitumor Activity of Fermented Colostrum and Milk

Area of Science:

• Oncology
• Microbiology
• Immunology

Background:

• Ehrlich ascites tumor model in mice is a standard for cancer research.
• Probiotics, including Lactobacillus and Streptococcus species, are known for their health benefits.
• Colostrum and milk are rich sources of nutrients and bioactive compounds.

Purpose of the Study:

• To investigate the anti-tumor effects of fresh and fermented bovine colostrum and milk.
• To evaluate the impact of specific probiotic cultures (Lactobacillus acidophilus, Lactobacillus bulgaricus, Streptococcus thermophilus) on tumor cell proliferation.

Main Methods:

• Male Swiss mice were inoculated with Ehrlich ascites tumor cells.
• Mice were administered fresh colostrum, colostrum fermented with various probiotic cultures, or fermented milk.
• Tumor cell counts and DNA synthesis were measured after 7 days of treatment.

Main Results:

• Fresh bovine colostrum showed no significant anti-tumor effect.
• Colostrum fermented with Lactobacillus acidophilus, Lactobacillus bulgaricus, or yogurt culture significantly inhibited tumor cell proliferation (16-40% decrease in cell counts).
• Fermented colostrum and milk also led to a significant reduction in DNA synthesis (13-35%).

Conclusions:

• Fermented bovine colostrum and milk, particularly when cultured with specific probiotics, exhibit significant anti-tumor properties.
• These findings suggest a potential role for probiotic-rich dairy products in cancer management strategies.
• Further research into the mechanisms of action and clinical applications is warranted.