Groundbreaking Cancer Research: Breastfeeding Leaves 'Immune Memory' in the Breast

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A major new study from Australian researchers at the prestigious Peter MacCallum Cancer Centre is set to change how we view women's health. The findings, which will be presented at the European Society of Medical Oncology (ESMO) 2025 Congress, reveal something truly incredible:  Breastfeeding leaves a lasting "immune memory" in the breast.  This isn't just about general health—it's a specific, biological change. Reproductive events, including having children and breastfeeding, are shown to leave special immune cells (Tissue-Resident Memory T cells) behind. These cells act like a permanent surveillance system to help protect the breast against the future development of aggressive cancers, like Triple-Negative Breast Cancer.  This evidence adds powerful scientific weight to the immense, long-term health advantages of breastfeeding for the mother.  What are your thoughts on this finding? Let us know in the comments below, and don't forget to SHARE this video to spread the word about this vital women's health research!  #breastfeeding #breastfeedingbenefits #womenshealth #immunememory #breastcancerresearch #triplenegativebreastcancer #ESMO2025 #PeterMacCallum #motherhood #parenting #healthscience

Transcript

00:00As well as being a mum and a passionate advocate for breastfeeding, some of you

00:04might know that I'm also a journalist. So as a journalist I subscribe to an

00:09organisation called Symex which sends journalists news briefings into their

00:14email inboxes on a daily basis and I get news briefings or news alerts on

00:20scientific discoveries that have been found all around the world from

00:24institutions, hospitals, research facilities, wherever they're getting you

00:30know results from and scientific studies. So I was very very excited today to

00:35receive this in my inbox. So it's a news briefing, briefing alert, breastfeeding

00:41linked to lasting immune protection against breast cancer. So I'm actually

00:46gonna need my glasses for this. I'm gonna put my glasses on and I'll read you what

00:51I received as the news briefing. It says a team of Aussie researchers has

00:57uncovered how having children and breastfeeding reduces a woman's long-term

01:02risk of developing breast cancer. Now this is the interesting part. The study

01:08reveals how pregnancy and breastfeeding leave a lasting impact on the breasts

01:15immune system and offers new insights for both prevention and treatment of breast

01:20cancer. And this research will be presented by the European Society of

01:26Medical Oncology Congress 2025 in Berlin. And the speaker is going to be

01:34Professor Shireen Loy and she's a medical oncologist and clinician scientist at the

01:40Peter McCollum Cancer Center which is here in Australia. And what's really

01:45interesting about it is that it's linked to lasting immune protection against breast

01:50cancer. So I really encourage you to look this study up. I do imagine that it'll be

01:55running in you know probably hopefully a lot of the mainstream media outlets but I

02:01just thought I would jump on and do my part in spreading the word about what they

02:07have found in obviously a study that they've done. And so look that's just yet

02:13another I mean the research piles on and on and on about all the protective

02:18effects of breast cancer for the mums. So you know it's easy to obviously focus on

02:25all the benefits for our babies and children and of course that's the

02:29important focus. But but but mums also you know breastfeeding has got so many

02:35benefits for you too. So nature really designed a win-win when it when we evolved to

02:42breastfeed our young and I think that's just a really another positive finding

02:47and another fantastic benefit that that breastfeeding seems to be linked to now

02:54lasting immune protection against breast cancer. So keep your eye out for longer

03:01stories and articles about this very exciting news briefing that just landed in

03:07in my inbox.

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