Prognostic Value of MAC30 Expression in Human Pure Squamous Cell Carcinomas of the Lung

Ding, Hui,Gui, Xian-Hua,Lin, Xu-Bo,Chen, Ru-Hua,Cai, Hou-Rong,Fen, Yan,Sheng, Yun-Lu Asian Pacific Journal of Cancer Prevention 2016 Asian Pacific journal of cancer prevention Vol.17 No.5

Recent evidence haas indicated that meningioma-associate protein (MAC30) exhibits different expression patterns in various tumors. However, little is known about the value of MAC30 in human squamous cell carcinoma of lung (SQCLC). The purpose of our study was to investigate the expression of MAC30 and to explore its clinical significance in SQCLC patients. A total of 156 Chinese patients diagnosed with SQCLC were selected for this study. The expression of MAC30 in all tissues was confirmed by immunohistochemical staining. Quantitative real-time PCR was performed to analyze MAC30 mRNA expression in 32 cases of SQCLC patients with corresponding non-tumor lung tissues. We observed enhanced mRNA expression of MAC30 in SQCLC as compared to control samples. Further, elevated MAC30 protein expression was strongly associated with poor tumor differentiation, TNM stage, and lymph node metastasis. In addition, we observed that patients with increased MAC30 expression demonstrated poor overall survival. Multivariate analysis explicated that increased MAC30 expression was a valuable independent predictable factor for poor tumor differentiation and short survival in SQCLC patients. Our present study suggests that MAC30 may serve as a biomarker for poor tumor differentiation and outcomes of patients with SQCLC.

Effects of Biodegradable Imidazolium-Based Ionic Liquid with Ester Group on the Structure and Properties of PLLA

Hao Guan Gui,Yun Sheng Ding,Yu Li,Shouyu Chen,Pei Xu,Bin Zheng 한국고분자학회 2014 Macromolecular Research Vol.22 No.6

Blends of poly(L-lactide) (PLLA) and a functional ionic liquid (IL), 3-methyl-1-(ethoxycarbonylethyl) imidazoliumtetrafluoroborate ([AOEMIm][BF4]) with various weight ratios were prepared by melt compounding andtheir interactions, compatibilities, processing characteristics, crystallization behaviors, mechanical properties and thermaldegradation were investigated in this study. The interaction between PLLA and [AOEMIm][BF4] was first studiedby infrared spectroscopy (IR) investigation, and then the Flory-Huggins interaction parameter between PLLA and[AOEMIm][BF4] was calculated. The compatibility was also supported by both sample appearance and scanning electronmicroscopy (SEM) results. Crystallization and melting conditions were obtained from differential scanning calorimetry(DSC), and the glass transition temperature (Tg) of PLLA showed a gradual decrease with the increasing addition of[AOEMIm][BF4]. The balancing torque data were obtained by Haaker torque rheometry, and the molecular weight data ofprocessed PLLA obtained by gel permeation chromatography (GPC) tests reflected a positive effect of [AOEMIm][BF4]on the melt-processing of PLLA. A strong increase of the mechanical parameters of PLLA, such as the elongation atbreak and the impact strength, was observed with the incorporation of [AOEMIm][BF4] up to the content of 7 phr (phris the abbreviation for parts per hundreds of resin, n phr denoted n g IL/100 g PLLA), while the tensile strength decreasedslightly. The thermal stability of PLLA took a sustained downward trend, with the increasing contents of [AOEMIm][BF4] inits matrices, as presented from thermogravimetric analysis (TGA). PLLA blended with 5 phr [AOEMIm][BF4] achievedexcellent overall performance; as well, the mechanical properties improved considerably, and damage to the thermal stabilitywas acceptable.

A decade of liver organoids: Advances in disease modeling

Yue Liu,Jian-Ying Sheng,Chun-Fang Yang,Junjun Ding,Yun-Shen Chan 대한간학회 2023 Clinical and Molecular Hepatology(대한간학회지) Vol.29 No.3

Liver organoids are three-dimensional cellular tissue models in which cells interact to form unique structures in culture. During the past 10 years, liver organoids with various cellular compositions, structural features, and functional properties have been described. Methods to create these advanced human cell models range from simple tissue culture techniques to complex bioengineering approaches. Liver organoid culture platforms have been used in various research fields, from modeling liver diseases to regenerative therapy. This review discusses how liver organoids are used to model disease, including hereditary liver diseases, primary liver cancer, viral hepatitis, and nonalcoholic fatty liver disease. Specifically, we focus on studies that used either of two widely adopted approaches: differentiation from pluripotent stem cells or epithelial organoids cultured from patient tissues. These approaches have enabled the generation of advanced human liver models and, more importantly, the establishment of patient-tailored models for evaluating disease phenotypes and therapeutic responses at the individual level.

Rhodococcus soli sp. nov., an actinobacterium isolated from soil using a resuscitative technique.

Li, Shan-Hui,Yu, Xiao-Yun,Park, Dong-Jin,Hozzein, Wael N,Kim, Chang-Jin,Shu, Wen-Sheng,Wadaan, Mohammed A M,Ding, Lin-Xian,Li, Wen-Jun N.V. Swets en Zeitlinger 2015 Antonie van Leeuwenhoek Vol.107 No.2

<P>A Gram-positive, aerobic, non-motile, non-spore forming strain, designated DSD51W(T), was isolated using a resuscitative technique from a soil sample collected from Kyoto park, Japan, and characterized by using a polyphasic approach. The morphological and chemotaxonomic properties of the isolate were typical of those of members of the genus Rhodococcus. Strain DSD51W(T) was found to form a coherent cluster with Rhodococcus hoagii ATCC 7005(T), Rhodococcus equi NBRC 101255(T), Rhodococcus defluvii Call(T) and Rhodococcus kunmingensis YIM 45607(T) as its closest phylogenetic neighbours in 16S rRNA gene sequence analysis. However, the DNA-DNA hybridization values with the above strains were 58.2 ± 2.2, 58.4 ± 1.9, 45.1 ± 1.4 and 40.3 ± 4.7 %, respectively. In combination with differences in physiological and biochemical properties, strain DSD51W(T) can be concluded to represent a novel species of the genus Rhodococcus, for which the name Rhodococcus soli sp. nov. is proposed, with the type strain DSD51W(T) (=KCTC 29259(T) = JCM 19627(T) = DSM 46662(T) = KACC 17838(T)).</P>

Dielectric and Conductivity Properties of Poly(L-lactide) and Poly(L-lactide)/Ionic Liquid Blends

Pei Xu,Hao Guan Gui,Shan Zhong Yang,Yun Sheng Ding,Qian Hao 한국고분자학회 2014 Macromolecular Research Vol.22 No.3

Dielectric relaxation spectroscopy (DRS) was employed to study the dielectric and conductivity propertiesof poly(L-lactide) and poly(L-lactide)/ionic liquid (IL) blends. The experimental dielectric data were analyzedwithin the formalism of complex permittivity. The results were discussed in terms of AC conductivity, αN relaxationcorresponding to the longest normal mode motion, α relaxation originating from the segmental mode motion, andDC conductivity. The results revealed that the motion of the polymer chains governs the charge carrier transport. The temperature dependence of the relaxation times follows the Vogel-Tammann-Fulcher (VTF) equation. Theincorporation of IL into the matrix accelerates the segmental (α) and normal mode (αN) motions and the conductivity,and increases the charge carrier movement of IL following the longest αN motion of chains, which led to an increasein the relaxation strength of the αN relaxation.

Reference Gene Screening for Analyzing Gene Expression Across Goat Tissue

Zhanga, Yu,Zhang, Xiao-Dong,Liu, Xing,Li, Yun-Sheng,Ding, Jian-Ping,Zhang, Xiao-Rong,Zhang, Yun-Hai Asian Australasian Association of Animal Productio 2013 Animal Bioscience Vol.26 No.12

Real-time quantitative PCR (qRT-PCR) is one of the important methods for investigating the changes in mRNA expression levels in cells and tissues. Selection of the proper reference genes is very important when calibrating the results of real-time quantitative PCR. Studies on the selection of reference genes in goat tissues are limited, despite the economic importance of their meat and dairy products. We used real-time quantitative PCR to detect the expression levels of eight reference gene candidates (18S, TBP, HMBS, YWHAZ, ACTB, HPRT1, GAPDH and EEF1A2) in ten tissues types sourced from Boer goats. The optimal reference gene combination was selected according to the results determined by geNorm, NormFinder and Bestkeeper software packages. The analyses showed that tissue is an important variability factor in genes expression stability. When all tissues were considered, 18S, TBP and HMBS is the optimal reference combination for calibrating quantitative PCR analysis of gene expression from goat tissues. Dividing data set by tissues, ACTB was the most stable in stomach, small intestine and ovary, 18S in heart and spleen, HMBS in uterus and lung, TBP in liver, HPRT1 in kidney and GAPDH in muscle. Overall, this study provided valuable information about the goat reference genes that can be used in order to perform a proper normalisation when relative quantification by qRT-PCR studies is undertaken.

Heavy concrete shielding properties for carbon therapy

Jin-Long Wang,Jiade J Lu,Da-Jun Ding,Wen-Hua Jiang,Ya-Dong Li,Rui Qiu,Hui Zhang,Xiao-Zhong Wang,Huo-Sheng Ruan,Yan-Bing Teng,Xiao-Guang Wu,Yun Zheng,Zi-Hao Zhao,Kai-Zhong Liao,Huan-Cheng Mai,Xiao-Dong Korean Nuclear Society 2023 Nuclear Engineering and Technology Vol.55 No.6

As medical facilities are usually built at urban areas, special concrete aggregates and evaluation methods are needed to optimize the design of concrete walls by balancing density, thickness, material composition, cost, and other factors. Carbon treatment rooms require a high radiation shielding requirement, as the neutron yield from carbon therapy is much higher than the neutron yield of protons. In this case study, the maximum carbon energy is 430 MeV/u and the maximum current is 0.27 nA from a hybrid particle therapy system. Hospital or facility construction should consider this requirement to design a special heavy concrete. In this work, magnetite is adopted as the major aggregate. Density is determined mainly by the major aggregate content of magnetite, and a heavy concrete test block was constructed for structural tests. The compressive strength is 35.7 MPa. The density ranges from 3.65 g/cm³ to 4.14 g/cm³, and the iron mass content ranges from 53.78% to 60.38% from the 12 cored sample measurements. It was found that there is a linear relationship between density and iron content, and mixing impurities should be the major reason leading to the nonuniform element and density distribution. The effect of this nonuniformity on radiation shielding properties for a carbon treatment room is investigated by three groups of Monte Carlo simulations. Higher density dominates to reduce shielding thickness. However, a higher content of high-Z elements will weaken the shielding strength, especially at a lower dose rate threshold and vice versa. The weakened side effect of a high iron content on the shielding property is obvious at 2.5 µSv=h. Therefore, we should not blindly pursue high Z content in engineering. If the thickness is constrained to 2 m, then the density can be reduced to 3.3 g/cm³, which will save cost by reducing the magnetite composition with 50.44% iron content. If a higher density of 3.9 g/cm³ with 57.65% iron content is selected for construction, then the thickness of the wall can be reduced to 174.2 cm, which will save space for equipment installation.