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Gene therapy for Age-Related Macular Degeneration (AMD) aims to provide a one-time treatment for a condition that traditionally requires frequent, invasive injections. By delivering specific genes directly to the retinal cells, this therapy turns the eye into a "bio-factory" that produces proteins to prevent the progression of vision loss.

For "wet" AMD, the goal is to introduce genes that produce anti-VEGF proteins, which stop the growth of abnormal, leaking blood vessels. For "dry" AMD (specifically geographic atrophy), researchers are targeting the complement system, delivering genes that regulate the overactive immune response responsible for the destruction of light-sensing cells in the macula.

The delivery mechanism typically involves an adeno-associated virus (AAV) vector, which is injected into the subretinal space. This vector acts as a vehicle, carrying the therapeutic DNA into the retinal cells without causing disease itself. Once the cells are "reprogrammed," they can continue to secrete the necessary proteins for…

Antibodies, also known as immunoglobulins, are specialized proteins produced by the immune system to identify and neutralize foreign invaders like bacteria and viruses. Their unique structure allows them to bind with high precision to specific antigens, acting as signals that direct other immune cells to destroy the pathogen.

In modern medicine, this natural mechanism has been harnessed to create monoclonal antibodies—laboratory-engineered proteins programmed to target specific cells. These are used to treat a wide range of conditions, from autoimmune disorders where the body attacks itself to various forms of cellular malfunctions.

By 2026, the application of antibody technology has become incredibly refined. "Bispecific" antibodies are now being used to bridge the gap between immune cells and their targets, effectively dragging a T-cell directly to a site of concern to ensure a rapid response. This level of precision minimizes "off-target" effects, which is a significant improvement over older, more generalized interventions…

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