Medical research

Researchers build embryo-like structures from human stem cells

Research on human embryos is vital to understanding the earliest stages of human development. Currently, this research is conducted on surplus embryos willingly donated by individuals who have undergone in vitro fertilization. ...

Medical research

Pre-embryos made in lab could spur research, ethics debates

For the first time, scientists have used human cells to make structures that mimic the earliest stages of development, which they say will pave the way for more research without running afoul of restrictions on using real ...

Oncology & Cancer

Developmental protein plays role in spread of cancer

A protein used by embryo cells during early development, and recently found in many different types of cancer, apparently serves as a switch regulating the spread of cancer, known as metastasis, report researchers at the ...

Genetics

Genome editing at the crossroads of scandal and cure

Genetic modification of babies in China one year ago was universally condemned. At the same time, CRISPR treatments are on their way into our clinics. Jacob Corn explains the difference.

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