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https://www.readbyqxmd.com/read/28900001/samd7-is-a-cell-type-specific-prc1-component-essential-for-establishing-retinal-rod-photoreceptor-identity
#1
Yoshihiro Omori, Shun Kubo, Tetsuo Kon, Mayu Furuhashi, Hirotaka Narita, Taro Kominami, Akiko Ueno, Ryotaro Tsutsumi, Taro Chaya, Haruka Yamamoto, Isao Suetake, Shinji Ueno, Haruhiko Koseki, Atsushi Nakagawa, Takahisa Furukawa
Precise transcriptional regulation controlled by a transcription factor network is known to be crucial for establishing correct neuronal cell identities and functions in the CNS. In the retina, the expression of various cone and rod photoreceptor cell genes is regulated by multiple transcription factors; however, the role of epigenetic regulation in photoreceptor cell gene expression has been poorly understood. Here, we found that Samd7, a rod-enriched sterile alpha domain (SAM) domain protein, is essential for silencing nonrod gene expression through H3K27me3 regulation in rod photoreceptor cells...
September 12, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28839287/self-propelled-ion-gel-at-air-water-interface
#2
Kazuaki Furukawa, Tetsuhiko Teshima, Yuko Ueno
We report on a self-propelled gel using ionic liquid as a new type of self-propellant that generates a powerful and durable motion at an air-water interface. The gel is composed of 1-ethyl-3-methylimidazolium-bis(trifluoromethylsulfonyl)imide (EMIM-TFSI) and poly(vinylidene fluoride-co-hexafluoropropylene) (P(VDF-co-HFP)). A long rectangular ion gel piece placed on the interface shows rapid rotation motion with maximum frequency close to 10 Hz, corresponding to the velocity over 300 mms(-1) at an outmost end of the piece...
August 24, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28815903/rhenium-loaded-tio2-a-highly-versatile-and-chemoselective-catalyst-for-the-hydrogenation-of-carboxylic-acid-derivatives-and-the-n-methylation-of-amines-using-h2-and-co2
#3
Takashi Toyao, Hakim S M A Siddiki, Yoshitsugu Morita, Takashi Kamachi, Abeda S Touchy, Wataru Onodera, Kenichi Kon, Shinya Furukawa, Hiroko Ariga, Kiyotaka Asakura, Kazunari Yoshizawa, Ken-Ichi Shimizu
Herein, we report a heterogeneous TiO2-supported Re catalyst (Re/TiO2) that promotes various selective hydrogenation reactions, e.g. hydrogenation of esters to alcohols, hydrogenation of amides to amines, and N-methylation of amines using H2 and CO2. Initially, Re/TiO2 was evaluated in the context of the selective hydrogenation of 3-phenylpropionic acid methyl ester to afford 3-phenylpropanol (pH2 = 5 MPa, T = 180 ºC), where revealed a superior performance relative to other catalysts explored in this study...
August 16, 2017: Chemistry: a European Journal
https://www.readbyqxmd.com/read/28813497/high-hydrostatic-pressure-induces-pro-osteoarthritic-changes-in-cartilage-precursor-cells-a-transcriptome-analysis
#4
Kevin Montagne, Yasuko Onuma, Yuzuru Ito, Yasuhiko Aiki, Katsuko S Furukawa, Takashi Ushida
Due to the high water content of cartilage, hydrostatic pressure is likely one of the main physical stimuli sensed by chondrocytes. Whereas, in the physiological range (0 to around 10 MPa), hydrostatic pressure exerts mostly pro-chondrogenic effects in chondrocyte models, excessive pressures have been reported to induce detrimental effects on cartilage, such as increased apoptosis and inflammation, and decreased cartilage marker expression. Though some genes modulated by high pressure have been identified, the effects of high pressure on the global gene expression pattern have still not been investigated...
2017: PloS One
https://www.readbyqxmd.com/read/28810691/improvement-of-implantation-potential-in-mouse-blastocysts-derived-from-ivf-by-combined-treatment-with-prolactin-epidermal-growth-factor-and-4-hydroxyestradiol
#5
Miki Takeuchi, Misato Seki, Etsuko Furukawa, Akihito Takahashi, Kyosuke Saito, Mitsuru Kobayashi, Kenji Ezoe, Emiko Fukui, Midori Yoshizawa, Hiromichi Matsumoto
STUDY QUESTION: Can supplementation of medium with prolactin (PRL), epidermal growth factor (EGF) and 4-hydroxyestradiol (4-OH-E2) prior to embryo transfer improve implantation potential in mouse blastocysts derived from IVF? SUMMARY ANSWER: Combined treatment with PRL, EGF and 4-OH-E2 improves mouse blastocyst implantation rates, while alone, each factor is ineffective. WHAT IS KNOWN ALREADY: Blastocyst dormancy during delayed implantation caused by ovariectomy is maintained by continued progesterone treatment in mice, and estrogen injection rapidly activates blastocysts to implantation-induced status in vivo...
August 1, 2017: Molecular Human Reproduction
https://www.readbyqxmd.com/read/28800452/identification-of-3-4-dihydro-2h-thiochromene-1-1-dioxide-derivatives-with-a-phenoxyethylamine-group-as-highly-potent-and-selective-%C3%AE-1d-adrenoceptor-antagonists
#6
Nobuki Sakauchi, Hideki Furukawa, Junya Shirai, Ayumu Sato, Haruhiko Kuno, Reiko Saikawa, Masato Yoshida
A series of phenoxyethylamine derivatives was designed and synthesized to discover potent and selective human α1D adrenoceptor (α1D adrenergic receptor; α1D-AR) antagonists. Compound 7 was taken from our internal compound collection as an attractive starting point and exhibited moderate binding affinity for α1D-AR and high selectivity against α1A- and α1B-ARs. We focused on modifying the 2-methylsulfonylbenzyl group of 7 to discover novel compounds structurally distinct from other reported α1-AR antagonists containing the phenoxyethylamine motif...
August 1, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28781812/non-neural-granular-cell-tumor-of-the-uterine-corpus-mimicking-uterine-leiomyoma-a-case-report
#7
Yoko Deguchi, Naoyuki Iwahashi, Yuko Horiuchi, Miwa Ikejima, Tomoyuki Tanaka, Kazuhiko Ino, Kenichi Furukawa
Non-neural granular cell tumors (GCTs) are clinically rare, whereas cases arising in the uterine corpus are exceedingly rare. Only three uterine cervical cases of GCTs have been reported to date and, to the best of our knowledge, there are no reports of GCT of the uterine corpus in the literature. We herein describe the first case of non-neural GCT arising from the uterine corpus reported to date. A 55-year-old premenopausal woman was referred to the Department of Obstetrics and Gynecology of Hashimoto Municipal Hospital (Wakayama, Japan) with a suspected uterine tumor...
September 2017: Molecular and Clinical Oncology
https://www.readbyqxmd.com/read/28776573/pancreatic-intraductal-tubulopapillary-neoplasm-is-genetically-distinct-from-intraductal-papillary-mucinous-neoplasm-and-ductal-adenocarcinoma
#8
Olca Basturk, Michael F Berger, Hiroshi Yamaguchi, Volkan Adsay, Gokce Askan, Umesh K Bhanot, Ahmet Zehir, Fatima Carneiro, Seung-Mo Hong, Giuseppe Zamboni, Esra Dikoglu, Vaidehi Jobanputra, Kazimierz O Wrzeszczynski, Serdar Balci, Peter Allen, Naoki Ikari, Shoko Takeuchi, Hiroyuki Akagawa, Atsushi Kanno, Tooru Shimosegawa, Takanori Morikawa, Fuyuhiko Motoi, Michiaki Unno, Ryota Higuchi, Masakazu Yamamoto, Kyoko Shimizu, Toru Furukawa, David S Klimstra
Intraductal tubulopapillary neoplasm is a relatively recently described member of the pancreatic intraductal neoplasm family. The more common member of this family, intraductal papillary mucinous neoplasm, often carries genetic alterations typical of pancreatic infiltrating ductal adenocarcinoma (KRAS, TP53, and CDKN2A) but additionally has mutations in GNAS and RNF43 genes. However, the genetic characteristics of intraductal tubulopapillary neoplasm have not been well characterized. Twenty-two intraductal tubulopapillary neoplasms were analyzed by either targeted next-generation sequencing, which enabled the identification of sequence mutations, copy number alterations, and selected structural rearrangements involving all targeted (≥300) genes, or whole-exome sequencing...
August 4, 2017: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
https://www.readbyqxmd.com/read/28714588/cellular-force-assay-detects-altered-contractility-caused-by-a-nephritis-associated-mutation-in-nonmuscle-myosin-iia
#9
Shota P Fukuda, Tsubasa S Matsui, Takafumi Ichikawa, Taichi Furukawa, Noriyuki Kioka, Shuichiro Fukushima, Shinji Deguchi
Recent progress in understanding the essential roles of mechanical forces in regulating various cellular processes expands the field of biology to one where interdisciplinary approaches with engineering techniques become indispensable. Contractile forces or contractility-inherently present in proliferative cells due to the activity of ubiquitous nonmuscle myosin II (NMII)-are one of such mechano-regulators, but because NMII works downstream of diverse signaling pathways, it is often difficult to predict how the inherent cellular forces change upon perturbations to particular molecules...
July 17, 2017: Development, Growth & Differentiation
https://www.readbyqxmd.com/read/28704973/the-mode-of-action-of-cyclo-l-ala-l-pro-in-inhibiting-aflatoxin-production-of-aspergillus-flavus
#10
Kurin Iimura, Tomohiro Furukawa, Toshiyoshi Yamamoto, Lumi Negishi, Michio Suzuki, Shohei Sakuda
Cyclo(l-Ala-l-Pro) inhibits aflatoxin production in aflatoxigenic fungi without affecting fungal growth. The mode of action of cyclo(l-Ala-l-Pro) in inhibiting aflatoxin production of Aspergillus flavus was investigated. A glutathione S-transferase (GST) of the fungus, designated AfGST, was identified as a binding protein of cyclo(l-Ala-l-Pro) in an experiment performed using cyclo(l-Ala-l-Pro)-immobilized Sepharose beads. Cyclo(l-Ala-l-Pro) specifically bound to recombinant AfGST and inhibited its GST activity...
July 12, 2017: Toxins
https://www.readbyqxmd.com/read/28688691/impact-of-combined-modality-treatment-with-radiotherapy-and-s-1-on-t2n0-laryngeal-cancer-possible-improvement-in-survival-through-the-prevention-of-second-primary-cancer-and-distant-metastasis
#11
Yosuke Kitani, Akira Kubota, Madoka Furukawa, Yukiko Hori, Yuko Nakayama, Tetsuo Nonaka, Nobutaka Mizoguchi, Yuka Kitani, Hiromitsu Hatakeyama, Nobuhiko Oridate
BACKGROUND: In patients with head and neck cancer, the management of second primary cancer (SPC) is particularly important for improving survival because of its high incidence and associated mortality. We evaluated the impact of combination chemotherapy on survival and SPC. METHOD: We retrospectively analyzed data from 49 patients treated with definitive radiation therapy (RT) for T2N0M0 laryngeal squamous cell carcinoma between 2003 and 2011. Among them, 22 patients received combined modality treatment with radiotherapy and S-1 (RT+CT group)...
August 2017: Oral Oncology
https://www.readbyqxmd.com/read/28649427/global-rise-of-potential-health-hazards-caused-by-blue-light-induced-circadian-disruption-in-modern-aging-societies
#12
REVIEW
Megumi Hatori, Claude Gronfier, Russell N Van Gelder, Paul S Bernstein, Josep Carreras, Satchidananda Panda, Frederick Marks, David Sliney, Charles E Hunt, Tsuyoshi Hirota, Toshiharu Furukawa, Kazuo Tsubota
Mammals receive light information through the eyes, which perform two major functions: image forming vision to see objects and non-image forming adaptation of physiology and behavior to light. Cone and rod photoreceptors form images and send the information via retinal ganglion cells to the brain for image reconstruction. In contrast, nonimage-forming photoresponses vary widely from adjustment of pupil diameter to adaptation of the circadian clock. nonimage-forming responses are mediated by retinal ganglion cells expressing the photopigment melanopsin...
2017: NPJ Aging and Mechanisms of Disease
https://www.readbyqxmd.com/read/28645883/the-first-nationwide-surveillance-of-antibacterial-susceptibility-patterns-of-pathogens-isolated-from-skin-and-soft-tissue-infections-in-dermatology-departments-in-japan
#13
Shinichi Watanabe, Takamitsu Ohnishi, Akira Yuasa, Hiroshi Kiyota, Satoshi Iwata, Mitsuo Kaku, Akira Watanabe, Junko Sato, Hideaki Hanaki, Motomu Manabe, Tamio Suzuki, Fujio Otsuka, Michiko Aihara, Ken Iozumi, Takeshi Tamaki, Yuichi Funada, Mikio Shinozaki, Motoko Kobayashi, Masaru Okuda, Go Kikyo, Kumi Kikuchi, Yoshitane Okada, Masanori Takeshima, Osamu Kaneko, Natsuki Ogawa, Rie Ito, Ryuhei Okuyama, Shinji Shimada, Tadamichi Shimizu, Naohito Hatta, Maeda Manabu, Kiyohiro Tsutsui, Toshihiro Tanaka, Yoshiki Miyachi, Hideo Asada, Fukumi Furukawa, Ichiro Kurokawa, Keiji Iwatsuki, Michihiro Hide, Masahiko Muto, Osamu Yamamoto, Hiroyuki Niihara, Kenji Takagaki, Yasuo Kubota, Koji Sayama, Shigetoshi Sano, Masutaka Furue, Takuro Kanekura
To investigate the trends of antimicrobial resistance in pathogens isolated from skin and soft-tissue infections (SSTI) at dermatology departments in Japan, a Japanese surveillance committee conducted the first nationwide survey in 2013. Three main organisms were collected from SSTI at 30 dermatology departments in medical centers and 10 dermatology clinics. A total of 860 strains - 579 of Staphylococcus aureus, 240 of coagulase-negative Staphylococci, and 41 of Streptococcus pyogenes - were collected and shipped to a central laboratory for antimicrobial susceptibility testing...
August 2017: Journal of Infection and Chemotherapy: Official Journal of the Japan Society of Chemotherapy
https://www.readbyqxmd.com/read/28632647/high-osteogenic-potential-of-adipose-and-muscle-derived-mesenchymal-stem-cells-in-spinal-ossification-model-mice
#14
Xizhe Liu, Gentaro Kumagai, Kanichiro Wada, Toshihiro Tanaka, Toru Asari, Kazuki Oishi, Taku Fujita, Hiroki Mizukami, Ken-Ichi Furukawa, Yasuyuki Ishibashi
STUDY DESIGN: Basic experiments in a mouse model of ossification of the posterior longitudinal ligament (OPLL). OBJECTIVE: To assess the osteogenic potential of mesenchymal stem cells (MSCs) obtained from muscle and adipose tissue in Tiptoe-walking (ttw) mice, in which cervical OPLL compresses the spinal cord and causes motor and sensory dysfunction. SUMMARY OF BACKGROUND DATA: In humans, MSCs have been implicated in the pathogenesis of cervical OPLL...
June 19, 2017: Spine
https://www.readbyqxmd.com/read/28629919/comparing-pulmonary-nodule-location-during-electromagnetic-bronchoscopy-with-predicted-location-on-the-basis-of-two-virtual-airway-maps-at-different-phases-of%C3%A2-respiration
#15
Brian S Furukawa, Nicholas J Pastis, Nichole T Tanner, Alexander Chen, Gerard A Silvestri
BACKGROUND: Electromagnetic navigational bronchoscopy (ENB) is guided bronchoscopy to pulmonary nodules (PN) that relies on a preprocedural chest CT to create a three-dimensional (3D) virtual airway map. The CT is traditionally done at a full inspiratory breath hold (INSP), but the procedure is performed while the patient tidal breaths, when lung volumes are closer to functional residual capacity. Movement of a PN from INSP to expiration (EXP) has been shown to average 17.6 mm. Therefore, the hypothesis of this study is that preprocedural virtual maps built off a CT closer to physiological lung volumes during bronchoscopy may better represent the actual 3D location of a PN...
June 16, 2017: Chest
https://www.readbyqxmd.com/read/28524820/chemical-structure-guided-design-of-dynapyrazoles-cell-permeable-dynein-inhibitors-with-a-unique-mode-of-action
#16
Jonathan B Steinman, Cristina C Santarossa, Rand M Miller, Lola S Yu, Anna S Serpinskaya, Hideki Furukawa, Sachie Morimoto, Yuta Tanaka, Mitsuyoshi Nishitani, Moriteru Asano, Ruta Zalyte, Alison E Ondrus, Alex G Johnson, Fan Ye, Maxence V Nachury, Yoshiyuki Fukase, Kazuyoshi Aso, Michael A Foley, Vladimir I Gelfand, James K Chen, Andrew P Carter, Tarun M Kapoor
Cytoplasmic dyneins are motor proteins in the AAA+ superfamily that transport cellular cargos toward microtubule minus-ends. Recently, ciliobrevins were reported as selective cell-permeable inhibitors of cytoplasmic dyneins. As is often true for first-in-class inhibitors, the use of ciliobrevins has in part been limited by low potency. Moreover, suboptimal chemical properties, such as the potential to isomerize, have hindered efforts to improve ciliobrevins. Here, we characterized the structure of ciliobrevins and designed conformationally constrained isosteres...
May 19, 2017: ELife
https://www.readbyqxmd.com/read/28523529/s-nitrosylation-regulates-cell-survival-and-death-in-the-central-nervous-system
#17
Yoshiki Koriyama, Ayako Furukawa
Nitric oxide (NO), which is produced from nitric oxide synthase, is an important cell signaling molecule that is crucial for many physiological functions such as neuronal death, neuronal survival, synaptic plasticity, and vascular homeostasis. This diffusible gaseous compound functions as an effector or second messenger in many intercellular communications and/or cell signaling pathways. Protein S-nitrosylation is a posttranslational modification that involves the covalent attachment of an NO group to the thiol side chain of select cysteine residues on target proteins...
May 18, 2017: Neurochemical Research
https://www.readbyqxmd.com/read/28496107/cd163-cd204-tumor-associated-macrophages-contribute-to-t-cell-regulation-via-interleukin-10-and-pd-l1-production-in-oral-squamous-cell-carcinoma
#18
Keigo Kubota, Masafumi Moriyama, Sachiko Furukawa, Haque A S M Rafiul, Yasuyuki Maruse, Teppei Jinno, Akihiko Tanaka, Miho Ohta, Noriko Ishiguro, Masaaki Yamauchi, Mizuki Sakamoto, Takashi Maehara, Jun-Nosuke Hayashida, Shintaro Kawano, Tamotsu Kiyoshima, Seiji Nakamura
Tumor-associated macrophages (TAMs) promote cancer cell proliferation, invasion, and metastasis by producing various mediators. Although preclinical studies demonstrated that TAMs preferentially express CD163 and CD204, the TAM subsets in oral squamous cell carcinoma (OSCC) remain unknown. In this study, we examined the expression and role of TAM subsets in OSCC. Forty-six patients with OSCC were analyzed for expression of TAMs in biopsy samples by immunohistochemistry. We examined TAM subsets and their production of immune suppressive molecules (IL-10 and PD-L1) in peripheral blood mononuclear cells from three OSCC patients by flow cytometry...
May 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28484901/racemization-of-valine-by-impact-induced-heating
#19
Yoshihiro Furukawa, Atsushi Takase, Toshimori Sekine, Takeshi Kakegawa, Takamichi Kobayashi
Homochirality plays an important role in all living organisms but its origin remains unclear. It also remains unclear whether such chiral molecules survived terrestrial heavy impact events. Impacts of extraterrestrial objects on early oceans were frequent and could have affected the chirality of oceanic amino acids when such amino acids accumulated during impacts. This study investigated the effects of shock-induced heating on enantiomeric change of valine with minerals such as olivine ([Mg0.9, Fe0.1]2SiO4), hematite (Fe2O3), and calcite (CaCO3)...
May 9, 2017: Origins of Life and Evolution of the Biosphere
https://www.readbyqxmd.com/read/28481921/low-sodium-diet-induces-atherogenesis-regardless-of-lowering-blood-pressure-in-hypertensive-hyperlipidemic-mice
#20
Fernanda B Fusco, Diego J Gomes, Kely C S Bispo, Veronica P Toledo, Denise F Barbeiro, Vera L Capelozzi, Luzia N S Furukawa, Ana P P Velosa, Walcy R Teodoro, Joel C Heimann, Eder C R Quintao, Marisa Passarelli, Edna R Nakandakare, Sergio Catanozi
This study investigated the influence of sodium restriction and antihypertensive drugs on atherogenesis utilizing hypertensive (H) low-density lipoprotein-receptor knockout mice treated or not with losartan (Los) or hydralazine (Hyd) and fed low-sodium (LS) or normal-sodium (NS) chow. Despite reducing the blood pressure (BP) of H-LS mice, the LS diet caused arterial lipid infiltration due to increased plasma total cholesterol (TC) and triglycerides (TG). Los and Hyd reduced the BP of H-LS mice, and Los effectively prevented arterial injury, likely by reducing plasma TG and nonesterified fatty acids...
2017: PloS One
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