An underwater photo of the solitary tunicate Polycarpa mytiligera growing on a coral in the Red Sea
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
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
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.
Female reproductive System Anatomy stock photo
Cells in the Ovary are Responsive Shape-Shifters
Roni Dengler, PhD | Apr 8, 2022
Rounds of trial-and-error exploring the layer of cells covering the ovary leave open questions about stem cells that are associated with ovarian cancer.
a mockup of an at-home COVID-19 test in development
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
Amy Schleunes | Feb 13, 2020
A mouse model demonstrates that mutations in stomach stem cells can drive gastric cancer growth.
Stem Cells in Human Teeth Follow the Rules of Their Environment
Roni Dengler, PhD | Feb 7, 2022
How stem cells in human teeth respond to different environmental conditions offers clues for regenerative medicine.
snake venom stem cells
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
Emily Makowski | Dec 1, 2019
The Stanford University professor helped develop a technique to grow brain organoids from induced pluripotent stem cells.
Stem Cell Transplant Treats Parkinson’s Disease in Monkeys
Roni Dengler, PhD | Feb 7, 2022
Personalized stem cells improved motor symptoms and depression signs in monkeys modeling Parkinson’s disease, paving the way for trials in human patients.
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
Abby Olena | Aug 29, 2019
After growing in culture for a few months, the mini-brains produced rhythmic neural activity that strengthened over time.
Human large intestine tissue under microscope view
Mini-Guts to the Rescue: Introducing 3-D Organoid Cell Cultures
The Scientist Creative Services Team, MilliporeSigma | Jan 19, 2022
A cost-effective 3-D organoid biobank provides a versatile translational research tool.
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.
type 1 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.
The Past, Present, and Future of Cell and Gene Therapy
The Past, Present, and Future of Cell and Gene Therapy
The Scientist Creative Services Team, Bio-Rad Laboratories | Dec 23, 2021
Embark on the journey of cell and gene therapy—from its conception and development, to its present state, and into its future.
olfaction sense of smell stem cell olfactory sensory neurons
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
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.
stem cell culture
An Optimized Culture Medium for Induced Pluripotent Stem Cells
The Scientist Creative Services Team in collaboration with Bio-Techne | Dec 10, 2021
An animal component-free culture medium provides a safe and robust alternative for maintaining induced pluripotent stem cells.
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.