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Better Knowledge, Better Treatments

Better understanding the mutations that a tumor has not only increases researchers' knowledge of cancer, it also improves treatments for cancer patients, MIT's Phillip Sharp tells The Boston Globe. Sharp is part of the Stand Up to Cancer organization that funds "dream teams" of researchers, including one that is investigating how some cancer cell genes are turned off by DNA modifications. "[One dream team has] found ways to reverse those modifications, and it appears to make tumors sensitive to drugs they have become resistant to," Sharp says. "If that pans out in bigger studies which are ongoing, it's quite exciting in terms of patients."

The Scan

Dropped Charges

The US Justice Department has dropped visa fraud charges against five Chinese researchers, according to the Wall Street Journal.

More Kids

The Associated Press says Moderna is expanding its SARS-CoV-2 vaccine study to included additional children and may include even younger children.

PNAS Papers on Rat Clues to Human Migration, Thyroid Cancer, PolyG-DS

In PNAS this week: ancient rat genome analysis gives hints to human migrations, WDR77 gene mutations in thyroid cancer, and more.

Purnell Choppin Dies

Purnell Choppin, a virologist who led the Howard Hughes Medical Institute, has died at 91, according to the Washington Post.