Scientists recreate mouse egg cell development without ovarian support cells
Peer-Reviewed Publication
Updates every hour. Last Updated: 10-Oct-2025 17:11 ET (10-Oct-2025 21:11 GMT/UTC)
Researchers from Japan and France have successfully reconstituted the development of mouse egg cells, known as oocytes, from embryonic stem cells entirely in vitro, without the need for ovarian support cells. This new method offers researchers a powerful new platform to investigate the molecular mechanisms that control oogenesis, the process by which egg cells develop, and lays important groundwork for future applications in human reproductive biology.
A team from The University of Osaka found that the intestinal flora works together with the OTUD3 and STING genes to aggravate ulcerative colitis, a disease with no cure that causes major intestinal pain and bloody diarrhea. When the OTUD3 gene is mutated, microbes in the intestinal flora trigger STING signalingOTUD, leading to inflammation in the colon. The intestinal flora and STING signaling may be important new targets for ulcerative colitis treatment.
Researchers at the Nano Life Science Institute (WPI-NanoLSI), Kanazawa University, report in Small, a weekly peer-reviewed scientific journal covering nanotechnology, published by Wiley-WCH, Germany, how short peptides self-assemble linearly on atomically-thick solid surfaces, such as graphite and MoS2. The research addresses a longstanding challenge in materials science: understanding the complex, sequence-specific interactions between peptides and solid substrates, and the critical role of local hydration structures in guiding nanoarchitecture formation. This work offers new strategies for integrating biomolecules with advanced materials in future bioelectronics and sensor devices.