Very impressive work by a team of doctors finding cause of the disease Lupus.

We’ve identified a fundamental imbalance in the immune responses that patients with lupus make, and we’ve defined specific mediators that can correct this imbalance to dampen the pathologic autoimmune response,” said co-corresponding author Deepak Rao, MD, PhD, an assistant professor of medicine at Harvard Medical School and a rheumatologist at Brigham and Women’s Hospital and co-director of its Center for Cellular Profiling. 

 

In the study, the scientists reported a new pathway that drives disease in lupus. There are disease-associated changes in multiple molecules in the blood of patients with lupus. Ultimately, these changes lead to insufficient activation of a pathway controlled by the aryl hydrocarbon receptor (AHR), which regulates cells’ response to environmental pollutants, bacteria or metabolites. Insufficient activation of AHR results in too many disease-promoting immune cells, called the T peripheral helper cells, that promote the production of disease-causing autoantibodies.

 

To show this discovery can be leveraged for treatments, the investigators returned the aryl hydrocarbon receptor-activating molecules to blood samples from lupus patients. This seemed to reprogram these lupus-causing cells into a cell called a Th22 cell that may promote wound healing from the damage caused by this autoimmune disease.

Obvious caveats. Any type of drugs to reverse Lupus are a long ways off. What is great is that they landed in Nature which may spark more interest in this area of study. 

Source: Northwestern Medicine

A bit of good news for a Friday

On Monday, the panel unanimously voted that the medicine, developed by Eli Lilly and known as donanemab, appears to be an effective treatment for certain Alzheimer’s patients. The experts also concluded, by an 11-0 vote, that the drug’s benefits outweigh its risks, despite some safety concerns.

Source: Biopharmadive

Well this is just down right extraordinary. It would be amazing if this works!

The approach is unusual: researchers injected healthy liver cells from a donor into a lymph node in the upper abdomen of the person with liver failure. The idea is that in several months, the cells will multiply and take over the lymph node to form a structure that can perform the blood-filtering duties of the person’s failing liver.

Source: Max Kozlov writing for Nature