In the British Journal of Cancer this week, researchers in Japan present their investigation of KRAS mutations in both primary tumors and post-treatment metastatic lesions in cases of colorectal cancer. The researchers analyzed a total of 63 lesions — 23 baseline primary, 18 metastatic, and 24 post-treatment metastatic — from 21 patients who underwent FOLFOX adjuvant therapy.

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While gene therapies may have high price tags, they could be cheaper than the cost of managing disease, according to MIT's Technology Review.

Researchers are looking for markers that indicate which cancer patients may respond to immunotherapies, the Associated Press writes.

Nature News writes that researchers are still wrangling over the role of the p-value.

In Nature this week: paternal age associated with de novo mutations in children, and more.