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… Treatment by lanosterol, but not cholesterol, significantly decreased preformed protein aggregates both in vitro and in cell-transfection experiments. We further show that lanosterol treatment could reduce cataract severity and increase transparency in dissected rabbit cataractous lenses in vitro and cataract severity in vivo in dogs. Our study identifies lanosterol as a key molecule in the prevention of lens protein aggregation and points to a novel strategy for cataract prevention and treatment.
Mutations underlying hereditary cataracts in two families impair the function of an enzyme that synthesizes the lens molecule lanosterol. The finding may lead to non-surgical prevention and treatment of cataracts.
… The team tested a lanosterol-laden solution in three separate experiments. First, they used human lens cells to test how effectively lanosterol shrank lab models of cataracts. They saw a significant decrease. Then, they progressed to rabbits suffering from cataracts. At the end of the 6-day experiment, 11 of 13 rabbits had gone from having severe or significant cataracts to mild cataracts or no cataracts at all. Finally, the team moved on to dogs, using a group of seven, including black Labs, Queensland Heelers, and Miniature Pinschers with naturally occurring cataracts. The dogs responded just as the researchers hoped to the lanosterol solution, which was given in the form of both eye injections and eye drops. The dogs’ lenses showed the same type of dissolving pattern as the human and rabbit lens cells.
The improvement was remarkable—researchers could tell just by looking at the dogs’ eyes that the cataracts had decreased. But the exact mechanism of how lanosterol manages to disperse the mass of proteins remains unknown.
Катаракту будут лечить глазными каплями. Технологию протестировали на собаках