Archive for immunology
Why do some people get severe COVID-19? The nose may know
The body’s first encounter with SARS-CoV-2, the virus behind COVID-19, happens in the nose and throat, or nasopharynx. A new study in the journal Cell suggests that the first responses in this battleground help determine who will develop severe disease and who will get through with mild or no illness. Building on work published last ... Read More
An ‘atlas’ of the choroid plexus across the lifespan
Once viewed merely as a producer of the cerebrospinal fluid (CSF) bathing the brain and spinal cord, the choroid plexus is now known to be a key player in brain development and immunity. These fronds of brain tissue, located in the CSF-filled brain cavities known as ventricles, secrete instructive cues into the CSF to regulate ... Read More
What drives severe lung inflammation in COVID-19?
A main feature of COVID-19 is lung inflammation and respiratory failure caused by an overexuberant immune response known as the cytokine storm. But why does the body produce such an excess of cytokine immune cells? New research from Talal Chatila, MD, of the Division of Immunology at Boston Children’s Hospital and colleagues provides some insights, ... Read More
Trusting their instincts: Gary’s parents find help for immune-mediated hepatitis
For Mercedes Hollingsworth and Gary Walker, Jr., trusting their parental instincts helped get their son Gary Walker III — affectionately known as GW — the care he needed. “We knew right away that something wasn’t right,” she says. “He just wasn’t a happy newborn. He looked miserable all the time.” Mercedes, who also has an ... Read More
When worlds collide: Glycosylated RNAs upend cell biology as we know it
Cells in our body bristle with sugars known as glycans that other cells can recognize via specialized receptors. Glycans attach to and modify proteins and fats, thereby influencing how proteins fold, how cues are trafficked between cells, and other cell-to-cell interactions. As just one example of glycans’ importance, our blood types (A, B, O) depend ... Read More
Diversifying therapeutic antibodies: From one, come many with potential different uses
A new method for producing antibodies against disease could result in a wider variety of drugs for infectious diseases, immune disease, and even cancer. The immune system naturally produces enormous varieties of antibodies to fight diseases. Therapeutic antibodies — antibodies created against specific therapeutic targets — have been used for decades to either rev up ... Read More
Specialized T cells protect against the deadliest form of malaria
Each year, there are about 230 million cases of malaria globally. Children under the age of 5 are at highest risk of serious illness and death, accounting for about 265,000 deaths, or nearly 70 percent of all malaria deaths worldwide. Despite significant time and money poured into efforts to develop an effective malaria vaccine, the ... Read More
Arthritis drug reduces rates of acute graft-vs-host disease after bone marrow transplant
The immune-suppressing drug abatacept, currently used for rheumatoid arthritis, could make bone marrow transplant safer, report researchers at the Dana-Farber/Boston Children’s Cancer and Blood Disorders Center. The phase 2 randomized, multi-center clinical trial, the largest to date, appears in the Journal of Clinical Oncology. Abatacept (brand name ORENCIA) reduced rates of severe, acute graft-versus-host disease ... Read More
2020, the year COVID-19 tuned us into science: Part 3
Since the arrival of a new, unknown, dangerous virus in January, we entered the realm of COVID-19 science. Part 1 and Part 2 of this series recapped what we learned about how the virus spreads, how to test for it and treat it, and how COVID-19 plays out in children. This month, vaccines began to be ... Read More
Why do some children exposed to the coronavirus go on to develop MIS-C?
Most children exposed to the SARS-CoV-2 coronavirus have few or no symptoms. But a small number become sick enough to go to the hospital. And a tiny handful develop a severe inflammatory illness called multisystem inflammatory syndrome (MIS-C), often weeks after initial exposure to the virus. Why? A team at Boston Children’s Hospital is using ... Read More