Archive for leukemia
One-time treatment could block a deadly form of graft-versus-host disease
Even when a bone marrow transplant cures leukemia or lymphoma, patients can still pass away from graft-versus-host disease (GVHD), in which T cells in the donor graft attack the recipient’s own tissues. Leslie Kean, MD, PhD, director of stem cell transplant at Dana-Farber/Boston Children’s Cancer and Blood Disorders Center, has long sought to prevent this ... Read More
How a leukemia hijacks the genes needed by blood stem cells
As a child, Lynn Aureli didn’t know that a particular genetic change contributed to her acute myeloid leukemia (AML) — an alteration that eventually would help explain the cancer’s lack of response to chemotherapy. Nor was she aware that her cancer had hijacked the genetic mechanism for maintaining the stem cells that form blood, like ... Read More
Preventing ‘chemo brain’ with antioxidants targeting the spinal fluid
Up to three-quarters of patients receiving cancer chemotherapy suffer from “chemo brain” — a side effect that makes it harder to remember things, maintain attention, and learn new information. When it strikes children, whose brains are still developing, effects are sometimes long lasting, affecting their schoolwork and self-esteem. “One of the most distressing potential side ... Read More
Making ready-made CAR T cells for cancer immunotherapy
In CAR T-cell immunotherapy, T cells from a patient’s own blood are engineered to carry so-called chimeric antigen receptors (CAR) that enable the T cells to attack and kill tumor cells. While CAR-T therapy is a powerful approach for certain leukemias and lymphomas, it’s not available for many patients who need it. It can be ... 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
Sickle cell disease, gene therapy, and blood cancers: Mysteries remain
Gene therapy trials for sickle cell disease have been showing great promise, even offering hope of a cure. But in early 2021, the trials ground to a halt after reports of blood malignancies in two people in a trial sponsored by bluebird bio. Investigations later concluded that the gene therapy delivery vectors were likely not ... Read More
Surviving stem cell transplant: New hope when the donor isn’t a full match
To see Tara Daniels today, with a corporate job in marketing and about to close on a house, you’d never know what she’s been through, how thrilled she is to be alive. This month marks five years since she received a high-risk bone marrow transplant for a life-threatening blood cancer. Tara woke up feeling sick ... Read More
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
Finding new targets for acute myeloid leukemia in children
Acute myeloid leukemia (AML) is the second most common leukemia diagnosed in children. It is hard to treat and can be fatal in some cases. While there have been some recent successes with genetically targeted therapies for adults, AML has different genetic features in children, and care has been slow to advance. “The state of ... Read More
Nurses Week 2021: Integrating new therapies into nursing practice and patient care delivery
A revolution in pharmacological gene therapy is underway, as indicated by a significant acceleration in the creation of new therapies to treat genetic disorders at the molecular level. Boston Children’s Hospital Nursing and extended team members, in collaboration with hospital researchers and scientists, biotech, and biopharma partners, have developed a set of specific processes to ... Read More