Archive for zebrafish
Preventing leukemia by preventing rogue blood cells from taking over
As we age, many of us acquire mutations that cause some of our blood stem cells to multiply faster than others, forming their own distinct populations or “clones.” This is known as clonal hematopoiesis. In some cases, a single clone originating from a single genetically altered or mutated stem cell can expand to comprise up ... Read More about Preventing leukemia by preventing rogue blood cells from taking over
Diving deep on epilepsy genetics
When child neurologist Annapurna Poduri, MD, MPH finished her clinical epilepsy fellowship at Boston Children’s Hospital in 2004, she was struck to find that the genetic understanding of epilepsy had changed little in the decade since she started medical school. Many questions were unanswered — and some weren’t yet being asked. Existing treatments were still ... Read More about Diving deep on epilepsy genetics
Diving deep: Understanding skeletal conditions with fish models
From fragile ice fish deep in the Antarctic Ocean to flying fish gliding above the Caribbean sea, fish have evolved a fascinating variety of skeletal traits. These traits not only help them adapt to their environments, they are also providing genetic insights into rare human skeletal disorders. Fish are not as genetically different from us ... Read More about Diving deep: Understanding skeletal conditions with fish models
A potential Diamond-Blackfan anemia treatment swims into view
Zebrafish, besides being popular in aquariums, make good stand-ins for studying human diseases. They share about 70 percent of their genes with humans, and can be studied at a mass scale, enabling scientists to test hundreds, even thousands of drugs at a time simply by adding the drug to their water. One such test came ... Read More about A potential Diamond-Blackfan anemia treatment swims into view
In zebrafish, a way to find new cancer therapies, targeting tumor promoters
The lab of Leonard Zon, MD, has long been interested in making blood stem cells in quantity for therapeutic purposes. To test for their presence in zebrafish, their go-to research model, they turned to the MYB gene, a marker of blood stem cells. To spot the cells, Joseph Mandelbaum, a PhD candidate in the lab, attached a fluorescent ... Read More about In zebrafish, a way to find new cancer therapies, targeting tumor promoters
Supercharged marrow transplant: Zebrafish reveal drugs that aid engraftment
Bone marrow transplantation, a.k.a. stem cell transplantation, can offer a cure for certain cancers, blood disorders, immune deficiencies and even metabolic disorders. But it’s a highly toxic procedure, especially when a closely matched marrow donor can’t be found. Using stem cells from umbilical cord blood banked after childbirth could open up many more matching possibilities, ... Read More about Supercharged marrow transplant: Zebrafish reveal drugs that aid engraftment