Human Blastocyst-Like Structures Made in the Lab
Human Blastocyst-Like Structures Made in the Lab
Two new papers describe the generation of so-called blastoids, which could avoid the use of embryonic cells and make studying early human development much more accessible.
Human Blastocyst-Like Structures Made in the Lab
Human Blastocyst-Like Structures Made in the Lab

Two new papers describe the generation of so-called blastoids, which could avoid the use of embryonic cells and make studying early human development much more accessible.

Two new papers describe the generation of so-called blastoids, which could avoid the use of embryonic cells and make studying early human development much more accessible.

embryonic stem cells
Promoting Stem Cell Growth and Self-Renewal In Vitro
Promoting Stem Cell Growth and Self-Renewal In Vitro
The Scientist Creative Services Team in collaboration with MilliporeSigma | Feb 19, 2021
An engineered laminin substrate facilitates high-quality human stem cell cultures.
Most Members of Federal Fetal Tissue Ethics Panel Oppose Abortion
Most Members of Federal Fetal Tissue Ethics Panel Oppose Abortion
Lisa Winter | Aug 3, 2020
The members of a new advisory board to the NIH met for the first time and will weigh in on federal funding for grants that rely on donated tissue from abortions.
Scientists Grapple with US Restrictions on Fetal Tissue Research
Scientists Grapple with US Restrictions on Fetal Tissue Research
Diana Kwon | Mar 2, 2020
The Trump administration’s changes to policy involving material donated from abortions have led scientists to adjust their research projects or seek alternative sources of funding.
NIH Scientists Banned from Studying Human Fetal Tissue
NIH Scientists Banned from Studying Human Fetal Tissue
Kerry Grens | Jun 6, 2019
External researchers funded by US federal grants can continue their experiments under tighter scrutiny.
First Mouse Embryos Made from Two Fathers
First Mouse Embryos Made from Two Fathers
Abby Olena | Oct 11, 2018
The bipaternal pups died soon after birth, but mice with two mothers grew into fertile adults.
Mouse Stem Cells Made to Form Embryo-Like Structures
Mouse Stem Cells Made to Form Embryo-Like Structures
Ruth Williams | Oct 3, 2018
With just a molecular nudge, aggregates of embryonic stem cells take shape as a “gastroloid,” bearing the genetic hallmarks and spatial organization of early development.
Cardiac Cell Transplants Help Monkeys’ Hearts
Cardiac Cell Transplants Help Monkeys’ Hearts
Ashley Yeager | Jul 2, 2018
The organ’s blood-pumping capacity improved with the infusion of cells, a study shows.
Studies Show How Cells Differentiate at Life’s Beginning
Studies Show How Cells Differentiate at Life’s Beginning
Shawna Williams | Apr 27, 2018
A trio of papers provide new insight into embryo development.
Image of the Day: Retinal Cell Implant
Image of the Day: Retinal Cell Implant
The Scientist Staff, The Scientist Staff | Apr 17, 2018
For the first time, a transplant of replacement tissue grown from stem cells has been shown to be feasible for patients with macular degeneration.
Researchers Argue for “Embryoid” Ethics Revamp
Researchers Argue for “Embryoid” Ethics Revamp
Bob Grant | Mar 22, 2017
Scientists issue a call to reconsider the rules governing the creation of tissues, organs, and other structures made possible by recent advances in synthetic biology. 
Meet the First Artificial Embryo Made From Stem Cells
Meet the First Artificial Embryo Made From Stem Cells
Bob Grant | Mar 2, 2017
Researchers report growing a mouse embryo using two types of early stem cells.
Week in Review: October 17–21
Week in Review: October 17–21
Jef Akst | Oct 20, 2016
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
Toward Making Sperm in the Lab
Toward Making Sperm in the Lab
Rina Shaikh-Lesko | Feb 25, 2016
Researchers devise a technique for creating gametes from murine embryonic stem cells.
Legacies Left Behind in 2015
Legacies Left Behind in 2015
Karen Zusi | Dec 30, 2015
A look at the contributions of some of the prominent researchers who died this year
New Stem Cell Identified
New Stem Cell Identified
Anna Azvolinsky | May 6, 2015
Researchers isolate an easy-to-manipulate, stable, and spatially distinct pluripotent cell type.  
Embryonic Stem Cell Pioneer Dies
Embryonic Stem Cell Pioneer Dies
Jenny Rood | Apr 2, 2015
Leroy Stevens, who discovered pluripotent embryonic stem cells in mice, has passed away at age 94.
New Stem Cell State
New Stem Cell State
Anna Azvolinsky | Dec 10, 2014
Through cellular reprogramming, researchers have produced a novel pluripotent mouse stem cell in vitro.
Stems Cells Ushered into Embryonic Development
Stems Cells Ushered into Embryonic Development
Kerry Grens | Nov 7, 2014
The right mix of mouse embryonic stem cells in a dish will start forming early embryonic patterns, according to two studies.
Eyes on the Prize
Eyes on the Prize
Jeffrey M. Perkel | Oct 1, 2014
A handful of stem cell therapeutics for vision disorders are showing promise in early-stage trials, and still more are in development. But there’s a long road to travel before patients see real benefit.