Topic: Health
New research from Stanford Medicine found that a problem with immune cells may be causing our bodies to age faster. The researchers blocked a single receptor on these cells and saw improvements in multiple organs, including the brain, heart, and liver.
Aging happens at different speeds for each person, but it eventually affects everyone. New research from Stanford Medicine, conducted in mice and human cells, points to a particular failure in the immune system that may help explain why we age. The researchers found that tissue-resident macrophages, a type of immune cell that lives permanently within organs, become less able with age to dispose of another class of immune cells called neutrophils.
This decline appears to contribute to aging throughout the body. When the scientists blocked a single receptor on these macrophages, multiple organs in mice retained more youthful characteristics. The effects were seen in the brain, heart, skeletal and heart muscle, liver, spleen, bone marrow, kidney, and colon.
The researchers also found that disabling this receptor protected mice from several problems associated with chronic inflammation and aging, including frailty, excess fat accumulation, and heart trouble. Cognitive decline was substantially reduced as well.
Why It Matters
This research may lead to new treatments for age-related diseases and help us understand how our bodies age. It could also have implications for human health in India, where many people are affected by age-related illnesses such as diabetes, cardiovascular disease, and dementia.
Key Facts
- The researchers found that a problem with immune cells may be causing our bodies to age faster.
- Tissue-resident macrophages become less able with age to dispose of neutrophils, which contribute to aging throughout the body.
- Blocking a single receptor on these macrophages improved multiple organs in mice, including the brain and heart.
- The researchers also found that disabling this receptor protected mice from several problems associated with chronic inflammation and aging.
- Cognitive decline was substantially reduced in mice with this treatment.
Key Terms
- Tissue-resident macrophages
- Immune cells that live permanently within organs
- Neutrophils
- A type of immune cell that helps fight infections
Implications
This research may lead to new treatments for age-related diseases and help us understand how our bodies age. It could also have implications for human health in India, where many people are affected by age-related illnesses such as diabetes, cardiovascular disease, and dementia.
Leave a comment