Study reveals how some chemicals in popular cosmetics and skin lotions displace lipids in skin cells, triggering allergic contact dermatitis.
Increased levels of Smad7 in T-cells is linked to multiple sclerosis-like symptoms in mice. In the intestines, the T-cells were more frequently activated and migrated to the central nervous system, where they triggered inflammation. Similar activation was seen in human patients with multiple sclerosis. The findings provide further evidence that multiple sclerosis may start in the intestines and spread via the CNS.
The fetal gut has far better developed immune capabilities than previously thought. The findings could help develop new maternal vaccines and provide early insight into potential autoimmune disorders, which may occur later in life.
TH17 cells produced increased amounts of SerpinB1, a protein implicated in multiple sclerosis symptoms. SerpinB1 cells were identified with antibodies targeting the CXCR6 surface protein. Using monoclonal antibodies to target CXCR6, the cells disappeared significantly, and the mice primed to develop MS did not develop the disease.
A newly discovered subset of dendritic cells have been implicated in sexually transmitted HIV infection. The CD11c+ dendritic cells are found in human genital tissue at the epithelial level. They are the first immune cells to interact with the HIV virus. The cells directly transfer the virus to CD4 T cells, making them key drivers in HIV transmission.
Exposure to viral infections in the brain during childhood has been linked to an increased risk of developing multiple sclerosis later in life.
Capsular polysaccharide A (PSA), an envelope molecule, may help to boost the immune system and protect against potentially fatal neuroinflammation associated with Herpes Simplex Encephalitis (HSE). Mice given PSA survived exposure to a lethal herpes simplex viral infection, while those not treated with the probiotic did not, despite both groups being treated with a common antiviral used to treat HSE.
Researchers report sleep can help immune cells attach to targets and help fight infection. The study reveals how sleep assists the body in fighting infections, whereas conditions like chronic stress can make the body more susceptible to illness.