Alpha-tocopherol and allergic lung inflammation in mice and human cells
What it found
Alpha-tocopherol reduced allergic lung inflammation in mice by changing how certain immune cells die.
It also blocked activation of these immune cells grown from human blood.
What they found
Studies in people
Seen in asthma patients
The same immune cell activity and the LKB1-linked cell death process were found in people who have asthma.
Animal and lab studies
Less lung swelling in mice
In mice with allergic lung swelling, alpha-tocopherol lowered signs of a protein called SCARB1 and slowed down a specific cell signal path involving LKB1.
LKB1 needed for effect
Alpha-tocopherol did not reduce allergic lung swelling in mice that lacked the LKB1 protein. Without LKB1, the immune cells died off more through a process called ferroptosis, which lowered swelling.
Studies in people and animals
Effect on human cells
When human immune cells grown in lab dishes were treated with alpha-tocopherol, their activation dropped. The treatment also blocked the LKB1-linked cell death process in these human cells.
What the authors conclude
- They say these results improve our knowledge of how diet affects the immune system.
- The authors suggest alpha-tocopherol could have uses as a treatment for managing asthma.
How it was done
Diet can influence allergic swelling in the airways through a type of immune cell called ILC2s. The authors wanted to find out if alpha-tocopherol, a form of vitamin E, plays a role in this process.
They studied mice with allergic lung swelling that were given alpha-tocopherol, including some mice missing a protein called LKB1. They also looked at immune cells from people with asthma and grew human blood cells in lab dishes to test alpha-tocopherol.
What it can’t tell you
- We summarised it from the abstract only.
- Lab dish tests on human cells cannot show what happens when someone eats or takes alpha-tocopherol.
- Mouse studies do not always match how human bodies respond to the same substance.
Who paid
- Conflicts
- Declaration of interests The authors declare no competing interests.
- Authors work at
- the Third Affiliated Hospital of Southern Medical University, China; Southern Medical University, China; Guangdong Sanjiu Brain Hospital, China
The paper
- Title
- α-Tocopherol ameliorates allergic airway inflammation by regulating ILC2 ferroptosis in an LKB1-dependent manner
- Type
- Study
- Evidence
- Studies in people · animals · lab
- Summarised from
- Abstract only
- Cite
- Zhang X, Liu J, Chen Z, et al (2025). α-Tocopherol ameliorates allergic airway inflammation by regulating ILC2 ferroptosis in an LKB1-dependent manner. Molecular therapy. doi:10.1016/j.ymthe.2025.08.053Free full textPubMed 40898617DOI
Summary written 30 Sep 2026. Check it against the paper before it changes what you eat. How we summarise papers · Report an error