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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.

cell & molecular biology, stem cells

Sergiu Pasca Builds Brains to Study Developmental Disease
Emily Makowski | Dec 1, 2019 | 3 min read
The Stanford University professor helped develop a technique to grow brain organoids from induced pluripotent stem cells.
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 | 2 min read
The introduced cells engrafted in the nose, became olfactory sensory neurons, and sent axons to the animals’ brains.
Blood Vessels Grown in a Petri Dish Closely Resemble Human Ones
Catherine Offord | Jan 18, 2019 | 2 min read
The lab-made organoids are fully functional, the team reports, and could aid the study of vascular-related diseases such as diabetes.
Call to Stop Using the Term “Mesenchymal Stem Cell”
Abby Olena, PhD | Sep 26, 2018 | 4 min read
Critics say the misleading term actually refers to a heterogeneous population of cells, including possible tissue-specific progenitor cells and nonstem cells all lumped together.
Human Skeletal Stem Cell Found
Abby Olena, PhD | Sep 20, 2018 | 3 min read
Researchers recovered the cells that give rise to bone and cartilage from fetal and adult bone marrow and also derived them from induced pluripotent stem cells.
Adult Cardiac Stem Cells Don’t Exist: Study
Diana Kwon | Sep 5, 2018 | 3 min read
A mouse study adds to the growing body of work disputing the ability of progenitor cells to regenerate muscle tissue in adult mammals’ hearts.
Infographic: How Muscles Age
Gillian Butler-Browne, Vincent Mouly, Anne Bigot, and Capucine Trollet | Sep 1, 2018 | 1 min read
Numerous cellular changes underlie the decline of muscle mass and strength in the elderly.
How Muscles Age, and How Exercise Can Slow It
Gillian Butler-Browne, Vincent Mouly, Anne Bigot, and Capucine Trollet | Sep 1, 2018 | 10+ min read
Researchers untangle the multifarious nature of muscle aging. So far, the only reliable treatment is exercise.
Stem Cell Vaccine Protects Mice From Cancer
Ruth Williams | Feb 15, 2018 | 3 min read
Stem cells and cancer cells have enough molecular similarities that the former can be used to trigger immunity against the latter.
Researchers Make Knockout Stem Cell Lines in One Step
Ruth Williams | Dec 1, 2017 | 3 min read
Combining gene editing and stem-cell induction improves efficiency of functional genetic analyses.
Infographic: Combo Method of Stem Cell Generation
Ruth Williams | Nov 30, 2017 | 1 min read
Simultaneous exposure to reprogramming and gene-editing plasmids efficiently produces edited pluripotent colonies.
Partial Reprogramming Offers a Way to Generate High Volumes of Progenitor-Like Cells
Abby Olena, PhD | Nov 30, 2017 | 3 min read
Activating genes for reprogramming factors for a short time transforms large numbers of differentiated cells into multipotent forms that could be useful for cell-based therapies.
Researchers Identify Clue to Asymmetric Cell Division
Shawna Williams | Sep 1, 2017 | 3 min read
Phosphorylation of a surface protein on endosomes is key to the organelles’ uneven distribution in daughter cells.
Infographic: Why Not All Cell Divisions Are Equal
Shawna Williams | Aug 31, 2017 | 1 min read
Phosphorylation of a protein called Sara found on the surface of endosomes appears to be a key regulator of asymmetric splitting in fruit flies.
Famed Mammalian Embryologist Dies
Jef Akst | Dec 1, 2016 | 2 min read
Andrzej Tarkowski’s research laid the groundwork for future advances in cloning, stem cell research, and in vitro fertilization.
Week in Review: October 17–21
Jef Akst | Oct 20, 2016 | 2 min read
Report finds that pathologist involved in anonymous defamation case committed multiple acts of misconduct; growing eggs from stem cells; neutrophils’ role in metastasis; convergent evolution in birds
Stem Cells Made Waves in Biology and Medicine
Karen Zusi | Oct 1, 2016 | 6 min read
Since their introduction to the lab, pluripotent stem cells have gone from research tool to therapeutic, but the journey has been rocky.
Thirty Years of Progress
The Scientist | Oct 1, 2016 | 1 min read
Since The Scientist published its first issue in October 1986, life-science research has transformed from a manual and often tedious task to a high-tech, largely automated process of unprecedented efficiency.
Immune Cell–Stem Cell Cooperation
Sarthak Sinha, Jeff Biernaskie, and Waleed Rahmani | Jul 1, 2016 | 10+ min read
Understanding interactions between the immune system and stem cells could pave the way for successful stem cell–based regenerative therapies.
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