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Stem cell research: (Re)-acquiring the potential to become everything

Researchers at Helmholtz Munich have discovered a specific subset of pluripotent embryonic stem cells that can transform into totipotent-like cells in culture. This breakthrough could pave the way for new treatments and therapies for various diseases, including diabetes and lung conditions.

Preventing a genetic uprising in early life

A recent study published in Cell Stem Cell has discovered a mechanism to prevent genetic chaos caused by transposons in early human development. The research found that endosiRNAs, a type of small interfering RNA, play a crucial role in regulating transposon activity during epigenetic reprogramming.

SourceBabraham Institute·JournalCell Stem Cell·DateNov 2, 2017

Better mini brains could help scientists identify treatments for Zika-related brain damage

Researchers developed improved mini brain organoids from stem cells, closely mimicking human brain structure. They found critical similarities between the organoids and real brain tissue and identified effective drugs to block Zika's entry into the brain, offering new avenues for studying neurological disorders

Repetitive elements shape embryonic chromatin landscape

Scientists from Helmholtz Zentrum München have found that retrotransposons, particularly LINE1 elements, regulate global chromatin accessibility in the early mouse embryo. This study identifies a novel role for retrotransposons in shaping the chromatin landscape necessary for correct developmental programming.

Upon prolonged irradiation, human stem cells' defenses are activated

Researchers discovered that prolonged exposure to ionizing radiation can delay cell cycle and increase DNA repair efficiency, with potential implications for cancer risk reduction. The study found that human stem cells can activate alternative DNA repair mechanisms, such as homologous recombination, in response to prolonged irradiation.

SourceMoscow Institute of Physics and Technology·JournalOncoTargets and Therapy·DateAug 24, 2017

Bacterial infection stresses hematopoietic stem cells

Recent research reveals that bacterial infections activate hematopoietic stem cells in the bone marrow, inducing proliferation but also causing stress and reduced ability to produce blood. This finding suggests a link between bacterial infections and dysregulated hematopoiesis, highlighting potential prevention methods for blood diseases.

SourceKumamoto University·JournalCell Stem Cell·DateAug 23, 2017

Where do heart cells come from?

Id genes have been linked to heart development for the first time, revealing a new tool to create large numbers of cardiac cells to regenerate damaged heart tissue. The study uses CRISPR-Cas9 gene editing and high-throughput microRNA screening to identify the role Id genes play in heart development.

SourceSanford Burnham Prebys·JournalGenes & Development·DateAug 22, 2017