A new way to cleanly separate out cancer cells from a blood sample enables comprehensive genetic profiling of the cancer cells, which could help doctors target tumors and monitor treatments more effectively.

It is a dramatic improvement over current approaches because it also encompasses the variation among cancer cells within a single patient.

“This could be a whole different ball game,” said Max Wicha, the Madeline and Sidney Forbes Professor of Oncology at the University of Michigan and senior physician on the study in Nature Communications.

In a medical first, the children were treated with genetically engineered T-cells from another person.

Entrepreneurs are taking genetic-editing technology from the lab to the clinic with grand ambitions. But who owns the patents?

Looking for perfect heat and lots of it? Gene engineers in Brazil think they might be able to create eye-watering tomatoes.

Hot stuff: Even though chili peppers and tomato plants diverged from a common ancestor millions of years ago, tomatoes still possess the genetic pathway needed to make capsaicinoids, the molecules that make chilis hot.

Now, Agustin Zsögön from the Federal University of Viçosa in Brazil writes in the journal Trends in Plant Science that gene-editing tools like CRISPR could turn it back on.

Viruses are masterful invaders. They cannibalize host cells by injecting their genetic material, often making thousands of copies of themselves in a single cell to ensure their replication and survival.

Some RNA viruses insert their genetic material as a single piece, while others chop it up into pieces. The latter are aptly named segmented viruses.

Such segmented RNA viruses—including several that cause human diseases like influenza—have been a longstanding enigma to researchers: How do they accomplish the precise copying and insertion of each segment? How do they ensure that individual segments are all copied by the same enzyme while ensuring that each segment can make different amounts of RNA? Such exquisite regulation is critical to make the correct levels of the viral proteins necessary for successful replication.

Evidence that humans can genetically adapt to diving has been identified for the first time in a new study. The evidence suggests that the Bajau, a people group indigenous to parts of Indonesia, have genetically enlarged spleens which enable them to free dive to depths of up to 70m.

It has previously been hypothesised that the spleen plays an important role in enabling humans to free dive for prolonged periods but the relationship between spleen size and dive capacity has never before been examined in humans at the genetic level.

The findings, which are being published in the research journal Cell, could also have medical implications in relation to the condition known as Acute Hypoxia, which can cause complications in emergency medical care.