Related Experiment Video
Updated: Jul 19, 2025
07:03
Isolation and Functional Assessment of Human Breast Cancer Stem Cells from Cell and Tissue Samples
Published on: October 2, 2020
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Social Isolation and Breast Cancer
Leena Hilakivi-Clarke1, Fabia de Oliveira Andrade1
1Department of Food Science and Nutrition, The Hormel Institute, University of Minnesota, Austin, MN 55912, USA.
Endocrinology
|August 16, 2023
Summary
Social isolation increases breast cancer risk and mortality by disrupting the gut microbiome. This disruption causes inflammation and metabolic dysfunction, potentially explaining the link between loneliness and cancer. Further research into this gut-brain connection is crucial for prevention strategies.
Area of Science:
- Oncology
- Neuroscience
- Microbiology
Background:
- Social isolation is linked to higher breast cancer risk and mortality.
- Biological changes from isolation include increased inflammation and metabolic disruptions.
- The exact mechanisms linking social isolation to breast cancer are not fully understood.
Purpose of the Study:
- To explore how social isolation influences breast cancer risk.
- To investigate the role of the hypothalamic-pituitary-adrenocortical (HPA) axis and autonomic nervous system (ANS) in this process.
- To examine the potential involvement of the gut-brain axis and gut dysbiosis.
Main Methods:
- Social isolation modeled in female mice and rats by single housing.
- Analysis of biological changes including inflammatory markers and metabolic dysfunction.
- Exploration of HPA and ANS pathway involvement and their potential impact on the gut microbiome.
Main Results:
- Social isolation causes inflammation and disrupts mitochondrial and cellular metabolism.
- HPA and ANS pathway activation may disrupt the brain-gut-microbiome axis, leading to gut dysbiosis.
- Gut dysbiosis alters bacterial metabolites, causing systemic inflammation and metabolic dysfunction.
Conclusions:
- Gut dysbiosis may be a key factor mediating the increased breast cancer risk associated with social isolation.
- Investigating the link between social isolation, gut dysbiosis, and breast cancer offers potential new prevention strategies.
- Understanding the gut-brain-microbiome axis is critical for addressing social isolation's impact on cancer.
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