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Chemotherapy drugs can induce mutations that lead to relapse in pediatric ALL patients

Chemotherapy drugs can induce mutations that lead to relapse in pediatric ALL patients Chemotherapy has helped make acute lymphoblastic leukemia (ALL) one of the most survivable childhood cancers. Now, researchers working in the U.S., Germany and China have shown how chemotherapy drugs called thiopurines can lead to mutations that set patients up for relapse. The work appears today in the journal Nature Cancer. The research provides the first direct genomic and experimental evidence in pediatric cancer that drug-resistant mutations can be induced by chemotherapy and are not always present at diagnosis. The findings offer a paradigm shift in understanding how drug resistance develops. The results also suggest possible treatment strategies for ALL patients who relapse, including screening to identify those who should avoid additional thiopurine treatment.

Frontiers | Editorial: Big Earth Data for Disaster Risk Reduction

Frontiers | Editorial: Big Earth Data for Disaster Risk Reduction
frontiersin.org - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from frontiersin.org Daily Mail and Mail on Sunday newspapers.

Epigenetic Mechanism Helps Plants to Live under High Temperatures

Chinese Academy of Sciences Global warming imposes a major threat to plant growth and crop production. In many cases, plants could sense the temperature increase and adjust their morphology and development, facilitating plant cooling and warm adaptation. Hence, understanding the mechanisms of these morphological and developmental changes, collectively called thermomorphogenesis, could benefit the breeding of warm-adaptive crops. Recently, a research team led by Dr. JIANG Danhua from the Institute of Genetics and Developmental Biology (IGDB) of the Chinese Academy of Sciences (CAS) investigated how the model plant Arabidopsis adjusts its growth under high temperatures and discovered a chromatin and transcription-based mechanism in thermomorphogenesis.

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