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Kanatani, Takako,Fujioka, H.,Lanzetta, M.,Kurosaka, M.,Matsumoto, T.,Bishop, G.A. The Korean Society for Microsurgery 2009 Archives of reconstructive microsurgery Vol.18 No.1
Whether a seven days course of anti-${\alpha}{\beta}$-T cell receptor-antibody (${\alpha}{\beta}$-TCRmAb) combined with FK506 therapy promotes survival of limb allografts in fully MHC-mismatched combination (Brown Norway $\rightarrow$ Lewis) was examined. Eight animals received 250 ${\mu}g$/kg/day of ${\alpha}{\beta}$-TCRmAb for 7 days and 2 mg/kg/day of FK506 postoperatively (Combination therapy group). Eight animals had FK506 only (Mono-therapy group) and five animals did not have treatment (Control group). Clinical signs of early rejection with edema or erythema in the skin occurred at an average of 8.6${\pm}$1.5 days postoperatively in Control group and 59.0${\pm}$8.3 days in Mono-therapy group, both of which proceeded to irreversible rejection with necrosis of the epidermis and finally mummification. In Combination therapy group, all animals showed evidence of early rejection at an average of 56.8${\pm}$12.6 days postoperatively, however, in 4 of 8 limbs, early rejection resolved without any treatment and limbs survived >1 year. At 9 months postoperatively, donor skin grafts were accepted and third-party skin grafts were rejected by all four survivors, demonstrating donor-specific tolerance. Little or no detectable chimerism was observed in any of the 4 surviving animals at one-year postoperatively. Combination therapy of ${\alpha}{\beta}$-TCRmAb and FK506 resulted in long-term survival in fully MHC-mismatched limb transplants.
Optimal and Robust Design of Plasma Actuator for the Control of a Cylinder Wake
Takashi Matsuno,Kentaro Ota,Takashi Kanatani,Hiromitsu Kawazoe 한국항공우주학회 2008 한국항공우주학회 학술발표회 논문집 Vol.- No.-
The performance of the plasma actuators for wake control and resulting drag reduction is examined and the optimization of the driving conditions of the plasma actuators were carried out by using the robust design method for wake control at high dynamic pressure conditions. The parameter design method that we used is feasible for the optimization of the control variables for flow control, under the situation that has multiple input parameters, requiring robustness, and complexity in flow phenomenon. The result of the design method gives the predicted optimal condition for reduced control parameters and that is confirmed to be robust and stable to the application test.
RUNX1–Survivin Axis Is a Novel Therapeutic Target for Malignant Rhabdoid Tumors
Masamitsu Mikami,Tatsuya Masuda,Takuya Kanatani,Katsutsugu Umeda,Hidefumi Hiramatsu,Hirohito Kubota,Tomoo Daifu,Atsushi Iwai,Etsuko Yamamoto Hattori,Kana Furuichi,Saho Takasaki,Sunao Tanaka,Yasuzumi M 한국분자세포생물학회 2022 Molecules and cells Vol.45 No.12
Malignant rhabdoid tumor (MRT) is a highly aggressive pediatric malignancy with no effective therapy. Therefore, it is necessary to identify a target for the development ofnovel molecule-targeting therapeutic agents. In this study, we report the importance of the runt-related transcription factor 1 (RUNX1) and RUNX1–Baculoviral IAP (inhibitor of apoptosis) Repeat-Containing 5 (BIRC5/survivin) axis in the proliferation of MRT cells, as it can be used as an ideal target for anti-tumor strategies. The mechanism of this reaction can be explained by the interaction of RUNX1 with the RUNX1-binding DNA sequence located in the survivin promoter and its positive regulation. Specific knockdown of RUNX1 led to decreased expression of survivin, which subsequently suppressed the proliferation of MRT cells in vitro and in vivo. We also found that our novel RUNX inhibitor, Chb-M, which switches off RUNX1 using alkylating agent-conjugated pyrrole-imidazole polyamides designed to specifically bind to consensus RUNX-binding sequences (5′-TGTGGT-3′), inhibited survivin expression in vivo. Taken together, we identified a novel interaction between RUNX1 and survivin in MRT. Therefore the negative regulation of RUNX1 activity may be a novel strategy for MRT treatment
마쓰시타 마코토,코사카 아키라,카나타니 시게히로,Matsushita, Makoto,Kosaka, Akira,Kanatani, Shigehiro 한국주조공학회 2022 한국주조공학회지 Vol.42 No.1
Hydraulic units are important components of agricultural and construction machinery, and thus require high-quality castings. However, gas defects occurring inside the sand cores of the castings due to the resin used is a problem. This study therefore aimed to develop a casting simulation method that can clarify the gas defect positions. Gas defects are thought to be caused by gas generated after the molten metal fills up the mold cavity. The gas constant is the most effective factor for simulating this gas generated from sand cores. It is calculated by gas generating temperature and analysis of composition in the inert gas atmosphere modified according to the mold filling conditions of molten metal. It is assumed that gases generated from the inside of castings remain if the following formula is established. [Time of occurrence of gas generation] + [Time of occurrence of gas floating] > [Time of occurrence of casting surface solidification] The possibility of gas defects is evaluated by the time of occurrence of gas generation and gas floating calculated using the gas constant. The residual position of generated gases is decided by the closed loops indicating the final solidification location in the casting simulation. The above procedure enables us to suggest suitable casting designs with zero gas defects, without the need to repeat casting tests.