Angelman syndrome is a rare genetic, nondegenerative and neurodevelopmental disorder caused by mutations affecting the expression of maternal UBE3A, which is expressed in neurons and is a key protein for neuronal morphology and correct synaptic functioning. The disease is characterized by intellectual disability, defects in movement and sleep disruption, among others.

While recent advances in gene therapy have offered unprecedented options for patients with hemophilia, new data presented at the 32nd Annual Congress of the European Society of Gene and Cell Therapy (ESGCT), held in Seville Oct. 7-10, revealed persistent concerns regarding the durability of these treatments and their potential liver toxicity.

The transition from complex and costly ex vivo strategies to platforms that enable direct cellular intervention within the body, known as in vivo therapies, is marking a paradigm change in the field of gene and cell therapies by simplifying manufacturing, improving tissue targeting and expanding clinical access to treatments.

As the many challenges facing cell therapies are being addressed, the CAR T field continues to evolve beyond its original design of T cells engineered to target hematological malignancies. During the 32nd Annual Congress of the European Society of Gene and Cell Therapy (ESGCT), held in Seville Oct. 7-10, several studies showed how this technology is being redefined as programmable and adaptable immune cells with expanded functional versatility.

Genetic mutations are the primary cause of most rare diseases. Although each condition affects a small fraction of the population, the global impact is significant, with an estimated 300 million individuals affected worldwide. A large proportion of pathogenic missense variants – estimated at 40%-60% – cause rare diseases by impairing protein stability. This underscores protein restoration as a promising therapeutic strategy.

Faeth Therapeutics Inc. has launched a new R&D initiative aimed at preserving neurocognitive function in children with tyrosinemia type 1 (TT1).

Generating gametes from nonreproductive tissues could help overcome infertility. Previous studies have successfully transformed stem cells into viable oocytes through cellular reprogramming. Scientists at Oregon Health & Science University (OHSU) developed a method to derive them from skin cells via somatic cell nuclear transfer (SCNT), unlocking a mechanism that blends mitosis and meiosis. Now, the researchers have taken another step forward by generating fertilizable eggs from human skin cells.

Sickle cell disease (SCD) and transfusion-dependent β-thalassemia (TDT) are severe monogenic blood disorders caused by mutations in the β-globin gene (HBB), resulting in abnormal or insufficient production of adult hemoglobin (HbA). Among emerging therapeutic approaches, the reactivation of fetal hemoglobin (HbF) represents one of the most promising strategies for both conditions.