Prof. HONDA, Jichi Medical University, visited our laboratory to observe and practice embryo freezing and thawing. He enthusiastically listened to Ms. Hasegawa’s explanation, observed the practical skills, and confirmed the key points.

The 26th Interdisciplinary Exchange Evening was held onsite (Wako Branch, RIKEN) and online hybrid on February 17th. The meeting was organized by RIKEN Scientists’ Assembly Steering Committee. ★Poster Session★ Dr. Kimiko INOUE: Establishment of a mono-allelic genome editing system and analysis of functionally unknown imprinted genes Dr. Aya UCHIDA: Comparative analysis of mouse trophoblast stem cells derived by somatic cell nuclear transfer and in vitro fertilization

The mini symposium “Genome building from TADs” was held onsite (The Tsukuba Center for Institutes, Japan) and online hybrid.

Ms. CHI LIÊU KIM NGUYEN (Laboratory Animal Resource Center, University of Tsukuba) joined us from Dec.5 to 28. She had self-introduction presentation on Dec. 8. She had been trying various challenges, spending most of her time on ICSI experiments.

The 45th Annual Meeting of the Molecular Biology Society of Japan (MBSJ2022) was held at Makuhari Messe, Chiba, on Nov.30 – Dec.2. Dr. Kimiko INOUE made a presentation on Dec. 2. Workshop [3AW-07] Genomic Imprinting New paradigms of epigenomic regulation and transgenerational inheritance uncovered by recent studies of genomic imprinting Title: Effects of loss of imprint in non-canonical imprinted genes on the development of somatic cell nuclear transferred (SCNT) embryos.

The international symposium “Totipotency and Germ Cell Development” was held in Fukuoka, Japan, on November 23-25, 2022. Finally, 405 persons from 22 countries participated in this symposium on site or online. This symposium was supported by the following KAKENHI: • Grant-in-Aid for Specially Promoted Research – Omics approaches towards the elucidation of the molecular network regulating the developmental capacity of the mammalian oocyte (Hiroyuki Sasaki) • Grant-in-Aid for Scientific Research on Innovative Areas – Ensuring integrity in gametogenesis (Katsuhiko Hayashi) • Grant-in-Aid for Scientific Research on Innovative Areas – Program of totipotency: From decoding to designing (Atsuo Ogura) ★Oral Presentation★ Atsuo OGURA: How somatic cell nuclear transfer helps us probe […]

The 13th International Meeting of the Asian Network of Research Resource Centers (ANRRC 2022), hosted by RIKEN BioResource Research Center, was held online. Ms. Naomi WATANABE made a poster presentation. Title: “Preservation of wild-derived mouse strains using nuclear transfer technology”

The 52nd Japanese Society for Spermatology meeting was held at Tsukuba Ars Hall. Ms. Narumi OGONUKI gave an oral presentation. Title： Production of offspring from azoospermic mice with meiotic failure