Atsuhiro Tsutiya

Atsuhiro Tsutiya
St. Marianna University School of Medicine · Clinical Proteomics and Molecular Medicine

PhD

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19
Publications
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128
Citations

Publications

Publications (19)
Article
Full-text available
Male predominance is a known feature of autism spectrum disorder (ASD). Although ASD mouse models can be useful for elucidating mechanisms underlying abnormal behaviors relevant to human ASD, suitable models to analyze sex differences in ASD pathogenesis remain insufficient. Herein, we used collapsin response mediator protein 4 (Crmp4)-knockout (KO...
Article
Object Functions of layilin, a type 1 transmembrane protein with a C-type lectin motif, remain to be clarified. We here investigated precise intracellular localization of layilin and the location-related functions. Methods We used HEK293T cells to assess the co-localization of layilin with different individual organelle markers by double immunosta...
Article
Full-text available
A disintegrin and metalloprotease 17 (ADAM17) catalyzes the cleavage and release of the ectodomains of its substrates at the cell surface in a process termed ectodomain shedding. However, not all ADAM17 substrates have been identified. Here, we used cell surface protein-specific labeling and proteomic approaches to detect and identify ADAM17 substr...
Article
Objective: Layilin is a type I transmembrane protein that possesses a C-type lectin motif in its extracellular domain, and whose functions have not yet been completely understood. Previously, we reported that layilin was highly expressed in malignant glioma cells. In this study, we investigated whether layilin was functionally related to low-densit...
Article
Background: Malignant gliomas are characterized by high invasive ability. In this study, we investigated roles of layilin, a C-type lectin-homologous protein, in the invasive ability of malignant glioma cells. Methods: Expression of layilin was investigated by western blotting in the malignant glioma cell lines of U251-MG, A172, and T98G and in...
Article
Full-text available
Abstract The neuroplastic mechanisms in the fish brain that underlie sex reversal remain unknown. Gonadotropin-releasing hormone 3 (GnRH3) neurons control male reproductive behaviours in Mozambique tilapia and show sexual dimorphism, with males having a greater number of GnRH3 neurons. Treatment with androgens such as 11-ketotestosterone (KT), but...
Article
Full-text available
Autism spectrum disorders (ASD) are more common among boys than girls. The mechanisms responsible for ASD symptoms and their sex differences remain mostly unclear. We previously identified collapsin response mediator protein 4 (CRMP4) as a protein exhibiting sex-different expression during sexual differentiation of the hypothalamic sexually dimorph...
Article
Full-text available
Induced pluripotent stem cell-derived endothelial cells (iPSC-ECs) can contribute to elucidating the pathogenesis of heart and vascular diseases and developing their treatments. Their precise characteristics in fluid flow however remain unclear. Therefore, the aim of the present study is to characterise these features. We cultured three types of EC...
Article
Full-text available
Collapsin response mediator protein 4 (CRMP4), a member of the CRMP family, is involved in the pathogenesis of neurodevelopmental disorders such as schizophrenia and autism. Here, we first compared layer thickness of the olfactory bulb between wild-type (WT) and CRMP4-knockout (KO) mice. The mitral cell layer (MCL) was significantly thinner, wherea...
Article
Full-text available
Members of the collapsin response mediator protein (CRMP) family are reported to be involved in the pathogenesis of various neuronal disorders including schizophrenia and autism. One of them, CRMP4, is reported to participate in aspects of neuronal development such as axonal guidance and dendritic development. However, no physiological or behaviora...
Article
Full-text available
In the sexually dimorphic anteroventral periventricular nucleus (AVPV) of the hypothalamus, females have a greater number of tyrosine hydroxylase-immunoreactive (TH-ir) and kisspeptin-immunoreactive (kisspeptin-ir) neurons than males. In this study, we used proteomics analysis and gene-deficient mice to identify proteins that regulate the number of...
Article
Full-text available
Collapsin response mediator protein 4 (CRMP4) is a molecular marker for immature neurons but only limited information is available on the spatiotemporal gene expression changes of Crmp4 in the developing rodent. In the present study, the variation of CRMP4 mRNA expression in the mouse brain was investigated from postnatal day (PD) 0 (the day of bir...
Article
Full-text available
In tilapia, hormone treatment during the period of sexual differentiation can alter the phenotype of the gonads, indicating that endocrine factors can cause gonadal sex reversal. However, the endocrine mechanism underlying sex reversal of reproductive behaviors remains unsolved. In the present study, we detected sexual dimorphism of gonadotropin-re...
Article
A sex difference has been reported in the responsiveness of the vomeronasal (VN) system to pheromones. In the present study, to clarify a direct and acute influence of 17β-estradiol (E2) on the accessory olfactory bulb (AOB) neurons, we investigated the effect of E2 on dendritic spines in cultured AOB cells derived from male and female neonatal rat...

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