When Severed, This Solitary Tunicate Regrows as Three New Animals
When Severed, This Solitary Tunicate Regrows as Three New Animals
While regeneration has long been the domain of colonial tunicates, a solitary species of sea squirt was able to regenerate into multiple, fully functional individuals within a month of being cut up.
When Severed, This Solitary Tunicate Regrows as Three New Animals
When Severed, This Solitary Tunicate Regrows as Three New Animals

While regeneration has long been the domain of colonial tunicates, a solitary species of sea squirt was able to regenerate into multiple, fully functional individuals within a month of being cut up.

While regeneration has long been the domain of colonial tunicates, a solitary species of sea squirt was able to regenerate into multiple, fully functional individuals within a month of being cut up.

stem cells
Human-Monkey Chimeras Shed Light on Development
Human-Monkey Chimeras Shed Light on Development
Abby Olena | Apr 15, 2021
Human stem cells injected into early monkey embryos proliferate and contribute to multiple cell lineages over 20 days of embryonic development.
Questions Raised About Widely Used Blood-Brain Barrier Model
Questions Raised About Widely Used Blood-Brain Barrier Model
Catherine Offord | Feb 16, 2021
A study has sparked controversy by suggesting that cells made using a popular lab protocol have been misidentified, with potentially serious repercussions for brain research. Critics say the significance of the findings has been overstated.
Top Technical Advances of 2020
Top Technical Advances of 2020
Shawna Williams | Dec 18, 2020
The pandemic spurred innovation in a variety of ways, from CRISPR-based diagnostics to cell biology benchwork at home.
Image of the Day: Stomach Stem Cells
Image of the Day: Stomach Stem Cells
Amy Schleunes | Feb 13, 2020
A mouse model demonstrates that mutations in stomach stem cells can drive gastric cancer growth.
Snake Venom Gland Organoids Produce Functional Toxins
Snake Venom Gland Organoids Produce Functional Toxins
Amy Schleunes | Jan 24, 2020
Stem cells from nine snake species respond to tissue culturing techniques previously used only on mouse and human stem cells.
Sergiu Pasca Builds Brains to Study Developmental Disease
Sergiu Pasca Builds Brains to Study Developmental Disease
Emily Makowski | Dec 1, 2019
The Stanford University professor helped develop a technique to grow brain organoids from induced pluripotent stem cells.
Infographic: Light in the Dark
Infographic: Light in the Dark
Nicoletta Lanese | Oct 1, 2019
A new tool helps stem cells integrate with host neural circuitry after implantation in mice.
Human Cortical Organoids Model Neuronal Networks
Human Cortical Organoids Model Neuronal Networks
Abby Olena | Aug 29, 2019
After growing in culture for a few months, the mini-brains produced rhythmic neural activity that strengthened over time.
Survey of Stem Cell Clinics Reveals Cause for Concern
Survey of Stem Cell Clinics Reveals Cause for Concern
Jef Akst | Aug 1, 2019
Two coauthors of a new study discuss their findings about nearly 170 facilities in the southwestern US selling unproven therapies—and what should be done about them.
Biotechs Race to Develop Stem Cell Treatments for Diabetes
Biotechs Race to Develop Stem Cell Treatments for Diabetes
Eric Bender | Jul 15, 2019
Insulin-producing cells grown in the lab could offer a functional cure for the disease.
Stem Cells Delivered to the Nose Restore Mice’s Ability to Smell
Stem Cells Delivered to the Nose Restore Mice’s Ability to Smell
Kerry Grens | May 30, 2019
The introduced cells engrafted in the nose, became olfactory sensory neurons, and sent axons to the animals’ brains.
Donor-Derived iPS Cells Show Promise for Treating Eye Disease
Donor-Derived iPS Cells Show Promise for Treating Eye Disease
Jef Akst | Apr 30, 2019
Age-related macular degeneration patients who received injections of retinal cells derived from donors’ induced pluripotent stem cells have maintained their level of eyesight for a year.
Blood Vessels Grown in a Petri Dish Closely Resemble Human Ones
Blood Vessels Grown in a Petri Dish Closely Resemble Human Ones
Catherine Offord | Jan 18, 2019
The lab-made organoids are fully functional, the team reports, and could aid the study of vascular-related diseases such as diabetes.