Article
Biochemistry & Molecular Biology
Yuta Tanizaki, Yuki Shibata, Hongen Zhang, Yun-Bo Shi
Summary: Thyroid hormone receptors, specifically TRα, play a crucial role in limb development by directly binding to target genes involved in cell cycle and Wnt signaling pathways. They prevent precocious limb formation before metamorphosis and promote limb development during the metamorphic process through T3 activation.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Biochemistry & Molecular Biology
Muriel Rigolet, Nicolas Buisine, Marylou Scharwatt, Evelyne Duvernois-Berthet, Daniel R. Buchholz, Laurent M. Sachs
Summary: Thyroid hormones and glucocorticoids play a role in cell-cycle regulation through the joint regulation of genes in the liver of tadpoles.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Multidisciplinary Sciences
Yan Yang, Tujing Zhao, Zheng Li, Wenliang Qian, Jian Peng, Ling Wei, Dongqin Yuan, Yaoyao Li, Qingyou Xia, Daojun Cheng
Summary: The study demonstrates that PRC2-mediated H3K27 methylation at Hairy in the prothoracic gland during larval period is required for ecdysone biosynthesis and the larval-pupal transition in Bombyx and Drosophila. This epigenetic regulation plays a crucial role in the crosstalk between juvenile hormone (JH) and ecdysone during insect development.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2021)
Article
Biochemistry & Molecular Biology
Beatriz Romartinez-Alonso, Maura Agostini, Heulyn Jones, Jayde McLellan, D. Eilidh Sood, Nicholas Tomkinson, Federica Marelli, Ilaria Gentile, W. Edward Visser, Erik Schoenmakers, Louise Fairall, Martin Privalsky, Carla Moran, Luca Persani, Krishna Chatterjee, John W. R. Schwabe
Summary: This study reveals that TR alpha mutants associated with RTH alpha can still bind thyroid hormone, leading to the synthesis of a novel thyroid hormone analogue, ES08, which effectively dissociates mutant TR alpha from corepressor. ES08 shows promising results in rescuing developmental anomalies in a zebrafish model and inducing target gene expression in cells from RTH alpha patients.
MOLECULAR AND CELLULAR BIOLOGY
(2022)
Article
Endocrinology & Metabolism
Bidisha Paul, Rejenae Dockery, Valery M. Valverde, Daniel R. Buchholz
Summary: Corticosteroids play a critical role in development and stress responses in vertebrates. A new gene called frzb has been identified as a marker for corticosterone response in frog tadpole tails, making it useful for hormone treatments and endocrine disruption studies.
FRONTIERS IN ENDOCRINOLOGY
(2023)
Article
Endocrinology & Metabolism
Zachary R. Sterner, Daniel R. Buchholz
Summary: The study shows that the glucocorticoid receptor (GR) plays a crucial role in accelerating the development of tadpoles, affecting tissue responsiveness to thyroid hormone (TH).
GENERAL AND COMPARATIVE ENDOCRINOLOGY
(2022)
Article
Biochemistry & Molecular Biology
Emilie Blanchet, Laurence Pessemesse, Christine Feillet-Coudray, Charles Coudray, Chantal Cabello, Christelle Bertrand-Gaday, Francois Casas
Summary: Deletion of p43 leads to a reduction in pancreatic islet density and loss of glucose-stimulated insulin secretion in mice. Our study showed that p43 is involved in beta cell development and maturation through regulation of the transcription factor MafA. Additionally, p43 deletion resulted in oxidative stress in pancreatic islets and affected insulin secretion in response to glucose.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)
Article
Cell Biology
Yuki Shibata, Yuta Tanizaki, Hongen Zhang, Hangnoh Lee, Mary Dasso, Yun-Bo Shi
Summary: Research shows that TR genes play crucial roles in larval epithelial cell death and adult stem cell formation during anuran metamorphosis. Lack of these processes in TRDKO tadpoles results in inhibition of metamorphosis progression.
Article
Developmental Biology
Caitlin S. DeJong, Darwin S. Dichmann, Cameron R. T. Exner, Yuxiao Xu, Richard M. Harland
Summary: The FET family of atypical RNA-binding proteins, including FUS, EWS, and TAF15, play specific roles in regulating gene expression and development processes in various organisms. Taf15 in particular is essential for dorsoanterior neural tissue development through distinct gene regulation mechanisms.
Article
Biochemistry & Molecular Biology
Shouhong Wang, Yuki Shibata, Liezhen Fu, Yuta Tanizaki, Nga Luu, Lingyu Bao, Zhaoyi Peng, Yun-Bo Shi
Summary: Animal regeneration is a natural process that relies on the level of thyroid hormone (T3), which is responsible for the loss of regenerative ability in many organs during development. The metamorphic stages in amphibians, similar to postembryonic development in humans, provide a good model to study the gradual loss of regenerative ability and the role of T3 in this process.
CELL AND BIOSCIENCE
(2023)
Article
Multidisciplinary Sciences
Melody Harper, Yinan Hu, Joan Donahue, Benjamin Acosta, Flora Dievenich Braes, Stacy Nguyen, Jenny Zeng, Julianna Barbaro, Hyungwoo Lee, Hoa Bui, Sarah K. McMenamin
Summary: Thyroid hormone regulates proximodistal patterning of the caudal fin rays in zebrafish, coordinating ray bifurcations and segment shortening. This regulation is independent of fin size and is conserved across species. Proximodistal morphology can be modified relative to size through modulation of thyroid hormone metabolism or other hormone-independent pathways.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2023)
Review
Endocrinology & Metabolism
Yun-Bo Shi
Summary: Thyroid hormone T3 plays a critical role in organ function, metabolism, and animal development, especially during the neonatal period in mammals. Studies on anuran metamorphosis in amphibians have shed light on how T3 regulates vertebrate development. The absence of T3 receptors in tadpoles leads to premature development of adult tissues and eventually lethality, highlighting the importance of TRs in mediating T3 effects.
Article
Environmental Sciences
Filiz Boran, Abbas Gungordu
Summary: The effects of drugs containing synthetic thyroid hormone and an anti-thyroid drug on different early developmental stages of Xenopus laevis vary, with more effective growth retardation in embryos than tadpoles. Inhibition of biomarker enzymes was significant in tadpoles, showing differences in sensitivity and responses to drugs at different stages.
ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY
(2021)
Article
Environmental Sciences
Wei Wang, Qiyao Ma, Xinliang Ding, Yihua Xu, Mengting He, Jie Xu, Jianjun Liu, Cheng Ji, Jie Zhang
Summary: This study found that exposure to Bromoacetamide (BAcAm) can cause developmental toxicity in zebrafish embryos, possibly by disrupting thyroid hormone homeostasis.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2022)
Article
Endocrinology & Metabolism
Yuta Tanizaki, Yuki Shibata, Hongen Zhang, Yun-Bo Shi
Summary: The study demonstrates a close relationship between TR alpha-regulated T3 activation of the cell cycle program and larval epithelial cell death and adult epithelial stem cell development during intestinal remodeling in Xenopus tropicalis metamorphosis.
Letter
Hematology
Yoko Nishinaka-Arai, Akira Niwa, Shiori Matsuo, Yasuhiro Kazuki, Yuwna Yakura, Takehiko Hiroma, Tsutomu Toki, Tetsushi Sakuma, Takashi Yamamoto, Etsuro Ito, Mitsuo Oshimura, Tatsutoshi Nakahata, Megumu K. Saito
Article
Biotechnology & Applied Microbiology
Kenshi Watanabe, Charose Marie Ting Perez, Tomoki Kitahori, Kosuke Hata, Masato Aoi, Hirokazu Takahashi, Tetsushi Sakuma, Yoshiko Okamura, Yutaka Nakashimada, Takashi Yamamoto, Keisuke Matsuyama, Shinzo Mayuzumi, Tsunehiro Aki
Summary: Efficiency of specific gene knock-in by homologous recombination was significantly increased by over 10 times through combining the CRISPR-Cas9 system in Aurantiochytrium strains. Genome edited strains with higher fatty acid productivity were isolated by disrupting genes associated with beta-oxidation, demonstrating the effectiveness of CRISPR-Cas9 for molecular breeding in Aurantiochytrium species to improve lipid productivity.
JOURNAL OF BIOSCIENCE AND BIOENGINEERING
(2021)
Article
Endocrinology & Metabolism
Ji Min Lee, Ukjin Kim, Hyokyung Yang, Bokyeong Ryu, Jin Kim, Tetsushi Sakuma, Takashi Yamamoto, Jae-Hak Park
Summary: Recent advancements in gene editing using TALENs have facilitated the creation of genetically engineered animal models. The Nkx3.1 knockout rat model was successfully generated, revealing reduced fertility, decreased prostate weights, increased epithelial cell layers, elevated mRNA expression of genes linked to prostate carcinogenesis, and a propensity for malignant breast tumors. This model serves as a valuable tool for studying the impact of NKX3.1 deficiency on prostate health, fertility, and breast cancer development.
Article
Anatomy & Morphology
Minami Ezawa, Fumika Kouno, Hideo Kubo, Tetsushi Sakuma, Takashi Yamamoto, Tsutomu Kinoshita
Summary: In Xenopus development, Pou5f3.3 plays a crucial role in establishing and maintaining hematopoietic progenitor cells, contributing to the regulation of peripheral blood cell homeostasis. Transplantation experiments demonstrate the migration of Pou5f3.3-positive cells from the hematopoietic dorsal-lateral plate to the liver and bone through the bloodstream, highlighting its significance in hematopoiesis.
Article
Engineering, Marine
Dipak Pandey, Takahiro Matsubara, Taiju Saito, Yukinori Kazeto, Koichiro Gen, Tetsushi Sakuma, Takashi Yamamoto, Miyuki Mekuchi, Rie Goto
Summary: The study utilized TALEN technology to achieve gene knockout in the kawakawa slc24a5 gene, investigating gene expression and functional differences, revealing association with melanin pigment formation. Experimental results showed that most TALEN-induced mutants exhibited mosaic patterns in retinal pigment epithelium cells.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2021)
Article
Cell Biology
Kaichi Watanabe, Yuhei Yasui, Yuta Kurose, Masashi Fujii, Takashi Yamamoto, Naoaki Sakamoto, Akinori Awazu
Summary: This study investigated the process of gastrulation in sea urchin embryos and found that omeprazole may induce partial exogastrulation by disrupting the apical-basal polarity of F-actin distribution.
Article
Gastroenterology & Hepatology
Tomoki Takashina, Akihiro Matsunaga, Yukiko Shimizu, Tetsushi Sakuma, Tadashi Okamura, Kunie Matsuoka, Takashi Yamamoto, Yukihito Ishizaka
Summary: A protein-based artificial transcription system was developed to engineer hepatocyte-like cells from human umbilical cord-derived mesenchymal stem cells. The engineered cells exhibited functional and molecular characteristics similar to hepatocytes, and significantly improved the survival rate in mice with hepatic failure. This transcription system could serve as a versatile tool for cell therapy for hepatic failures.
HEPATOLOGY COMMUNICATIONS
(2023)
Article
Veterinary Sciences
Yuki Numakura, Risa Uemura, Miyuu Tanaka, Takeshi Izawa, Jyoji Yamate, Takashi Kuramoto, Takehito Kaneko, Tomoji Mashimo, Takashi Yamamoto, Tadao Serikawa, Mitsuru Kuwamura
Summary: The study reveals that the PHF24 protein in Noda epileptic rats is widely expressed in the central nervous system, particularly in specific regions of the olfactory bulb and spinal cord. These cells co-express with inhibitory interneuron markers and play a role in modulating GABA(B) signaling.
EXPERIMENTAL ANIMALS
(2021)
Meeting Abstract
Oncology
Tetsushi Sakuma
Meeting Abstract
Oncology
Tetsushi Sakuma
Meeting Abstract
Oncology
Kazuma Nakatani, Tetsushi Sakuma, Takashi Yamamoto, Yoshitaka Hippo, Yusuke Suenaga
Meeting Abstract
Oncology
Yukihito Ishizaka, Yoichi Teratake, Tetsushi Sakuma, Takashi Yamamoto
Meeting Abstract
Oncology
Takuya Fukazawa, Etsuko Yokota, Tetsushi Sakuma, Yoshio Naomoto, Takashi Yamamoto, Tomoki Yamatsuji