Marisa Wexler, MS, senior science writer —

Marisa holds a Master of Science in cellular and molecular pathology from the University of Pittsburgh, where she studied novel genetic drivers of ovarian cancer. Her areas of expertise include cancer biology, immunology, and genetics, and she has worked as a science writing and communications intern for the Genetics Society of America.

Articles by Marisa Wexler

FDA advisory committee votes against NurOwn approval for ALS

In a nearly unanimous vote, an advisory committee to the U.S. Food and Drug Administration (FDA) said there’s not enough evidence to support the efficacy of the experimental stem cell therapy NurOwn as a treatment for amyotrophic lateral sclerosis (ALS). The committee voted on a single question in its meeting: “Do…

New guidelines: All ALS patients should be offered genetic testing

Every person with amyotrophic lateral sclerosis (ALS) should be offered genetic testing to check for the most common ALS-causing mutations, according to a new set of expert guidelines. “These evidence-based, consensus guidelines will support all stakeholders in the ALS community in navigating benefits and challenges of genetic testing,”…

Bryostatin-1 boosts cell survival in lab model of ALS

Bryostatin-1, a molecule being developed to treat amyotrophic lateral sclerosis (ALS), improved cell survival in a lab model of the disease, a new study reports. The therapy is known to activate PKC-epsilon, a protein that’s significantly reduced in ALS patients’ motor cortex, a brain region involved in muscle movement…

Transplanting motor neurons strengthens muscles in mouse model

Scientists have devised a technique for transplanting healthy motor neurons — the nerve cells that are lost in amyotrophic lateral sclerosis (ALS) — in a mouse model with “highly aggressive” disease. Transplanted motor neurons, given stimulation, were able to form healthy connections with muscle cells to control the animals’ muscle…

NEK1 gene mutations found to drive ALS in new study

Mutations in the gene NEK1, a major genetic cause of amyotrophic lateral sclerosis (ALS), may work to drive the disease by destabilizing the structure of nerve fibers and disrupting the movement of molecules inside nerve cells, according to a new study. The findings, which show for the first time how…