Biomedical engineers at Texas A&M published a study in Proceedings of the National Academy of Sciences. They used microscopic flower-shaped nanoparticles called nanoflowers together with stem cells. In the presence of nanoflowers, the stem cells produced twice the normal number of mitochondria.
When placed near damaged or aging cells, the boosted stem cells transferred their extra mitochondria to the weaker cells. Those cells regained energy production and function and resisted cell death, even after exposure to damaging agents such as chemotherapy drugs. The researchers described the treated stem cells as mitochondrial bio factories.
The nanoparticles are made of molybdenum disulfide and stay inside the cell, where they continue to promote mitochondria creation. Because they are larger than many drug molecules, treatments based on these particles might need only monthly doses. The team suggests possible uses near the heart or in muscle.
Difficult words
- nanoflowers — very small particles shaped like flowers
- nanoparticles — very small particle used in science or medicine
- stem cells — cell that can grow into different cells
- mitochondria — part of a cell that makes energy
- molybdenum disulfide — a chemical compound used to make the particles
- chemotherapy — medical treatment that uses strong drugs
Tip: hover, focus or tap highlighted words in the article to see quick definitions while you read or listen.
Discussion questions
- How can extra mitochondria help weaker cells?
- Would you accept a treatment with monthly nanoparticle doses? Why or why not?
- Which body parts did the team suggest for possible use, and why might these parts need help?
Related articles
New Method Could Transform Battery Recycling
Researchers have found a new way to recycle battery materials efficiently. This method helps recover lithium and other metals without using harmful chemicals.
AI Could Train the Next Generation of Surgeons
Artificial intelligence may assist medical students by giving real-time feedback on their surgical skills. This tool aims to help address the shortage of surgeons.
These Hummingbirds' Bills Evolved for Fighting
Research shows that male green hermit hummingbirds have stronger bills for fighting and mating. Their bill shapes differ greatly from females to aid in competition.
Reliable Internet Unavailable for 90% of Poorest
A report highlights that 90% of people in low- and middle-income countries lack reliable internet access, affecting their ability to access essential services.
Emory study: 2023–24 COVID vaccine gives lasting antibodies
Emory University measured antibody responses in 24 people after the 2023–24 monovalent vaccine targeting Omicron XBB.1.5. The study found long-lasting antibodies, cross-reactive protection with the ancestral WA1 strain, and a 2.8-fold boost from immune imprinting.
Brazil Supreme Court Decriminalizes Marijuana Possession
Brazil’s Supreme Court has ruled to decriminalize marijuana possession for personal use, a major change in the country’s drug laws.