New work transforms our knowledge of how blood is formed
The origins of our blood may not be quite what we thought. In groundbreaking research, scientists in the Stem Cell Program at Boston Children’s Hospital used cellular “barcoding” techniques in mice to track the development of blood in real time — and found that blood cells originate not from one type of mother cell, but ... Read More
Genomic ‘fingerprinting’ yields better treatments for pediatric solid cancers
Genomic profiling is increasingly used for solid tumors in adults and for pediatric brain tumors and blood cancers, allowing treatments to be matched to patients’ mutations. But for children with solid tumors, genomic fingerprinting has been elusive, because these cancers are so varied and individually so rare. Therapies therefore remain non-specific: chemotherapy, surgery, and/or radiation. ... Read More
Pregnant mothers who get COVID-19 vaccines are also protecting their babies
Recent studies have shown that COVID-19 vaccination is safe for expectant mothers and can protect them against infection, severe illness, and death from COVID-19. We also know that mothers vaccinated during pregnancy pass coronavirus antibodies to their babies. The latest research — drawing on 30 children’s hospitals in 22 states — now confirms that vaccinating ... Read More
Exploiting a vulnerability in an aggressive leukemia
Survival has improved greatly in children with acute lymphocytic leukemia (ALL). But a certain form of ALL that occurs mostly in babies is still very lethal, with a survival rate below 50 percent: B-cell acute lymphoblastic leukemia with rearrangements of the mixed lineage leukemia gene, or MLL B-ALL. “Something about the biology of this type ... Read More
Previous COVID-19 or MIS-C does not protect kids from Omicron
You would think that having had COVID-19 once, you’d have antibodies that would protect you against repeat infections. But studies of adults have shown that Omicron doesn’t go by that logic. A new study, led by Dr. Adrienne Randolph of Boston Children’s Hospital and Dr. Surender Khurana of the Food and Drug Administration, confirms that ... Read More
Getting to the heart of heart muscle function
Every heart muscle cell, or cardiomyocyte, is studded with tiny, intricate structures called dyads. The dyads are like orchestra conductors: They coordinate incoming electrical signals with release of calcium in the muscle, triggering contraction. When dyads work properly, the different segments of heart muscle contract in unison; when they don’t, heartbeats may be too weak ... Read More
Cell therapy for lung disease? Proof-of-concept study shows promise
Many serious pulmonary diseases, including genetic lung diseases, lack an effective treatment other than the most extreme: lung transplant. A team at Boston Children’s Hospital envisions a much better option: cell therapy, using lung stem cells created from patients’ own cells to repair or replace damaged lung tissue. For patients with genetic lung diseases, the ... Read More
Old vaccine, new tricks? Unlocking the BCG vaccine’s potential
Could a century-old vaccine offer clues for designing the vaccines of tomorrow? Ofer Levy, MD, PhD, director of the Precision Vaccines Program at Boston Children’s Hospital, wants to find out. One of the world’s oldest and most widely used vaccines, the Bacille Calmette-Guérin (BCG) tuberculosis vaccine may at first seem like an unlikely source of ... Read More
COVID-19’s devastating toll: An increase in adolescent suicides and mental health crises
The past decade has seen worrisome increases in self-harm, suicidal ideation, and suicide attempts among adolescents. Two new studies from Boston Children’s Hospital show that the situation became even more acute with the onset of COVID-19. Epidemiologist Maimuna Majumder, PhD, and colleagues at the Computational Health Informatics Program (CHIP) at Boston Children’s partnered with public health ... Read More
Fetal brain imaging predicts neurodevelopment of babies with congenital heart disease
Children with congenital heart disease (CHD) often have neurodevelopmental impairment. Until fairly recently, this was thought to stem from complications of cardiac surgery or reduced oxygen supply to the brain due to the heart defect. Now we know that some babies with CHD have impaired brain development in utero because of low oxygen supply to ... Read More