Photosynthesis Successfully Demonstrated in Mouse Eye Cells Using the LEAF Nano-System

¨     Researchers demonstrated photosynthesis in mouse eye cells using plant-derived chloroplast structures and a synthetic nano-system called LEAF (Light-driven Engineered Artificial Thylakoid Factory).

¨     The study was published in the journal Cell in May 2026.

¨     The experiment involved mammalian corneal cells exposed to ambient light.

¨     LEAF is a plant-derived nano-system designed to function as a temporary neo-organelle inside mammalian cells.

¨     It incorporates components derived from spinach.

¨     Under light exposure, LEAF generates ATP and NADPH, molecules essential for cellular energy transfer and redox balance.

¨     Photosynthesis is the process by which plants, algae, and certain bacteria convert light energy into chemical energy.

¨     In this experiment, chloroplast-derived structures were introduced into mouse eye cells.

¨     The treated cells produced biologically useful molecules when exposed to light.

¨     The study explored LEAF as a light-powered therapeutic strategy for inflammatory eye disorders.

¨ Particular attention was given to Dry Eye Disease, also known as keratoconjunctivitis sicca.

¨ In preclinical trials involving mice with dry eye disease, LEAF therapy successfully reversed corneal damage.

¨     The treatment doubled tear-film stability.

¨     LEAF outperformed several standard clinical medications used for the condition.

¨     The research highlights the potential of light-driven bioengineering approaches for treating eye diseases and advancing regenerative medicine.