20 October, 2025
Mother's carrying toddler and breastfeeding at home

Mother's carrying toddler and breastfeeding at home

URGENT UPDATE: Groundbreaking research from Australia reveals that breastfeeding may significantly lower a woman’s risk of developing aggressive breast cancer. The study, published today in the Nature journal, uncovers the role of immune cells in breast tissue, suggesting that mothers who breastfeed have enhanced defenses against cancer even decades after childbirth.

Led by Professor Sherene Loi from the Peter MacCallum Cancer Centre, the study examined over 1,000 patients diagnosed with triple-negative breast cancer, the most aggressive form of the disease. Findings indicate that those who breastfed exhibited better survival rates, thanks to a higher presence of CD8+ T cells—immune cells known for their ability to target and destroy tumor cells.

“The tumours of mothers who breastfed had more immune cells, indicating ongoing immune activation against their breast cancer,” stated Professor Loi. She emphasized that these immune cells act as “local guards, ready to attack abnormal cells that might turn into cancer.”

The study highlights that the longer a woman breastfeeds, the more effective these T cells become in combating breast cancer. This discovery opens the door to new prevention and treatment strategies for breast cancer. “This tells us that the immune system is crucial in triple-negative breast cancer. By activating the patients’ immune system, we can improve outcomes and reduce the risk of recurrence,” Professor Loi explained.

The implications of this research extend beyond breastfeeding mothers. Professor Loi believes this study could pave the way for innovative approaches to protect women who either do not have children or are unable to breastfeed. Potential next steps include the development of vaccines and other immune treatments tailored to harness this protective effect.

As this research unfolds, it underscores the vital role of the immune system in cancer prevention and treatment, particularly for women facing the threat of breast cancer. Share this urgent news with others to raise awareness about the significant health benefits of breastfeeding and its potential impact on cancer risk.