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Yusuke IZUMI Yuki HOSHINO Kenji HOSOYA Satoshi TAKAGI Masahiro OKUMURA 《The Journal of veterinary medical science / the Japanese Society of Veterinary Science》2015,77(3):359-363
The present study involved the isolation and characterization of canine tumor endothelial
cells (TECs) from 2 malignancies. TECs were isolated using magnetic cell sorting following
FITC labeling with UEA1 lectin, and they were characterized by measuring genetic and
histopathological endothelial markers. Isolated TECs exhibited a cobblestone-like
morphology and expressed both vascular endothelial growth factor receptor 2 (VEGFR2) and
Von Willebrand factor (vWF). Further, both TECs and tumor cells derived from a seminoma
exhibited increased C-X-C chemokine receptor type 7 (CXCR7) expression. However, CXCR7
expression was not detected in TECs and tumor cells derived from a hepatocellular
carcinoma. Understanding TEC specific traits may be important in the development of more
efficacious anti-angiogenic therapies that do not induce adverse effects. 相似文献
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Takeo SAKAI Ayako ISHII Takao SEGAWA Yukihiko TAKAGI Yuki KOBAYASHI Takuya ITOU 《The Journal of veterinary medical science / the Japanese Society of Veterinary Science》2015,77(4):461-465
The Flinders Technology Associates filter paper cards (FTA® cards) can be used
to store nucleic acid from various samples and are easily portable. However, RNA is
physicochemically unstable compared with DNA, and appropriate methods have not been
established for storage and extraction of RNA from FTA® cards. The present
study investigated the optimum conditions for storage and elution of viral RNA (vRNA)
using rabies virus (RABV) applied to FTA® cards. When TE buffer was used, the
elution rates of vRNA increased with the length of the elution time. When the cards were
stored at −80°C or −20°C, vRNA was stable over 3 months. Degradation of vRNAs occurred
following storage at 4°C and room temperature, suggesting that RNA should be extracted
from cards as soon as possible if no freezer is available. When we tried to amplify vRNA
from RABV-infected animal brains applied to FTA® cards and stored at −80°C for
6 months, we did not detect any amplified products with the primer set for 964 bp of RABV
N gene. However, we were able to detect amplified products by increasing the elution time
of vRNA from FTA® cards from 30 min to 24 hr or by changing the primer sets to
amplify 290 bp of N gene. Thus, we recommend extending the elution time for damaged or low
concentration samples in FTA® cards. 相似文献
254.
Reiko USUI Yuki OKADA Emiko FUKUI Atsuhiko HASEGAWA 《The Journal of veterinary medical science / the Japanese Society of Veterinary Science》2015,77(2):237-239
Otitis media of the left ear was diagnosed by video otoscopic examination in a 7-year-old, intact male Shih-tzu dog (weight, 5.1 kg), that also had three complex ceruminous adenomas and a Pseudomonas aeruginosa infection in the left ear canal. In such cases, total ear canal ablation is usually required. However, a complete cure was achieved in the present case without total ear canal ablation. The complex ceruminous adenomas were excised using a diode laser, and repeated cleansing of the tympanic cavity and ear canal was implemented using a video otoscope. As a result, the ear canal was closed in a U-form, and the otitis media was cured. 相似文献
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Polyaniline (PANI) and shell membrane composites have been synthesized via chemical oxidative polymerization of aniline in the presence of shell membrane. Combination of surfactant, PANI, and shell membrane allows production of conductive textile with smooth surface. Fourier transform infrared spectroscopy (FTIR) measurements suggest that the oxidation degree of PANI was affected by the initial ratio of shell membrane vs. monomer amount. The PANI/shell membrane composites were characterized with UV-vis absorption spectroscopy, electron spin resonance (ESR) spectroscopy. Electrical conductivity of the composites was measured with four-probe method. The surface of the composites was observed with scanning electron microscopy (SEM). Thermal stability of the composites was discussed with the result of thermogravimetric analysis. 相似文献
259.
Yoshiyuki IMURA Satoko IGUCHI Kazuhiro TOYODA Yuki ICHINOSE Tomonori SHIRAISHI Tetsuji YAMADA 《Journal of General Plant Pathology》2000,66(2):123-127
Regulatory elements in the promoter of phenylalanine ammonia-lyase gene 1 of pea (PSPAL1) in response to nonpathogenic attack were identified by in vivo footprinting analysis. The footprints determined AC-rich sequences, Box-I and Box-II, that were conserved at similar positions
in the phenylpropanoid gene promoters from several plants. To reveal the functions of the AC-rich sequence in nonpathogen-responsiveness,
we constructed Box-I-deletion PSPAL1 promoter (dB-1) with GUS reporter gene and transformed it into tobacco plant. The dB-1 had reduced basal expression and a complete loss of nonpathogen-responsiveness. These results indicate the essentiality of
Box-I for PSPAL1 activation induced by nonpathogenic attack.
Received 27 October 1999/ Accepted in revised form 25 November 1999 相似文献
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