Scientists have successfully grown a realistic human eye lens from stem cells for the first time, a development that may lead to new treatments for cataracts and a variety of other eye conditions. This breakthrough was achieved by researchers from Anglia Ruskin University (ARU) in the UK, in collaboration with experts from Cardiff University and the University of Osaka in Japan.
The researchers reported that the lab-created “mini lenses” closely resemble the natural lenses found within the human eye. They hope these new lenses will be instrumental in testing new medications and enhancing the understanding of eye diseases.
According to the research team, the lenses may also play a role in advancing future regenerative treatments. The study indicated that these lenses can replicate some of the natural regenerative processes involved in the development of eye lenses.
Professor Barbara Pierscionek, of the Centre for Biomedicine and Health Innovation at ARU, emphasized the significance of this achievement. “This is a major step forward as it is very difficult to obtain and study human eye lens tissue while it is developing. We’ve now successfully grown miniature human lens tissue from stem cells in the laboratory and identified the conditions needed for it to closely resemble a natural human lens,” she said.
Writing in the journal npj Regenerative Medicine, the researchers detailed their method for developing these lenses. They utilized adult cells that were reprogrammed into a stem cell-like state. The team then devised a growth method that encouraged these cells to organize into lens-like structures.
The findings revealed that the lab-grown lenses possess many biological features characteristic of real human lenses and have the ability to generate new lens-like structures from the cells.
This research is particularly relevant for conditions such as cataracts, which occur when the eye’s lens becomes cloudy. Cataracts can worsen over time, often necessitating cataract surgery to replace the cloudy lens with an artificial one. The scientists’ work may eventually contribute to more effective treatments for such eye conditions.
