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 BioResource Research Center (BRC), 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

2022 RIKEN Tsukuba Open Campus was held onsite and online hybrid. Mr. Daiki SHIKATA and Ms. Naomi WATANABE gave a lecture on the web. Theme: Technologies that carry on lives -Graduate Students’ Challenge-

Training course for cryopreservation of mouse sperm and embryos　 ~ BRC-new-ovulation method and points of improvement in fertilization and birth rates ~

A tour of RIKEN Tsukuba branch was held for new administrative staff to be employed. They watched “real” mouse IVF and fertilized embryos in our lab.

Prof. Takuya Sato, Yokohama City University, visited our laboratory with his students for collaborative ICSI experiments. We hope that healthy mouse pups will be born 20 days later!

At the first session, Dr. Aya UCHIDA introduced her research career and future research plan. She also made a poster presentation. Title: Sertoli valve formation and spermatogenesis are modulated by Sox17+ rete testis in mouse testis