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Researchers at Harvard Medical School have published a new study in Cancer Discovery on how ovarian cancer cells act in the body, reports New Scientist. As shown in the time-lapse video below, the researchers attached the cancer cells to peritoneal cells and filmed the interaction in a Petri dish for 14 hours, in order to see how ovarian cancer cells break through the membrane to get to other organs. It appears that the tumor cells are able to break through the healthy membrane cells beneath them by using proteins involved in cell movement to "force them out of the way," New Scientist says. The researchers, who think the discovery could aid in the search for therapies, say the cancer cells "act like bullies."

The Scan

US Supports Patent Waivers

NPR reports that the Biden Administration has announced its support for waiving intellectual property protections for SARS-CoV-2 vaccines.

Vaccines Versus Variants

Two studies find the Pfizer-BioNTech SARS-CoV-2 vaccine to be effective against viral variants, and Moderna reports on booster shots to combat variants.

CRISPR for What Ails You

The Wall Street Journal writes that CRISPR-based therapies could someday be used to treat common conditions like heart attacks.

Nature Papers Review Integration of Single-Cell Assay Data, Present Approach to Detect Rare Variants

In Nature this week: review of ways to integrate data from single-cell assays, and more.