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https://www.readbyqxmd.com/read/29655982/polyprenylated-polycyclic-acylphloroglucinol-angiogenesis-inhibitor-from-garcinia-multiflora
#1
Lin-Yang Cheng, Chun-Lin Chen, Yueh-Hsiung Kuo, Tsung-Hsien Chang, I-Wei Lin, Shih-Wei Wang, Mei-Ing Chung, Jih-Jung Chen
A new polyprenylated polycyclic acylphloroglucinol, garcimultiflorone K (1), has been isolated from the stems of Garcinia multiflora, together with two known compounds, garcimultiflorone A (2) and garcimultiflorone B (3). The structure of new compound 1 was determined through spectroscopic methods including 1D and 2D NMR and MS analyses. The anti-angiogenic and anti-cancer effects of compounds 1-3 were evaluated in human endothelial progenitor cells (EPCs) and cancer cells. Of these, garcimultiflorone K (1) displayed the most potent anti-angiogenic property by suppressing cell growth and tube formation of EPCs...
April 6, 2018: Bioorganic & Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/29651140/novel-indole-fused-benzo-oxazepines-ifbos-inhibit-invasion-of-hepatocellular-carcinoma-by-targeting-il-6-mediated-jak2-stat3-oncogenic-signals
#2
Ashok K Singh, Archana S Bhadauria, Umesh Kumar, Vinit Raj, Amit Rai, Pranesh Kumar, Amit K Keshari, Dinesh Kumar, Biswanath Maity, Sneha Nath, Anand Prakash, Sudipta Saha
Inspired by the well-documented tumor protecting ability of paullones, recently, we synthesized novel paullone-like scaffolds, indole-fused benzo-oxazepines (IFBOs), and screened them against hepatocellular carcinoma (HCC) specific Hep-G2 cells. Three of the synthesized compounds significantly attenuated the progression of HCC in vitro. By computational studies, we further discovered that IFBOs exhibited a stable binding complex with the IL-6 receptor. In this context, we investigated in vivo study using the nitrosodiethyl amine (NDEA)-induced HCC model, which strengthened our previous findings by showing the blockade of the IL-6 mediated JAK2/STAT3 oncogenic signaling pathway...
April 12, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29650911/-a-case-of-advanced-gastric-cancer-with-multiple-liver-metastases-treated-with-curative-conversion-therapy-after-s-1-plus-cddp
#3
Yukito Shindo, Shinichiro Fukuda, Ryoko Kataoka, Nobutsuna Kuwamoto, Hitomi Takaishi, Yasuaki Miura, Ryoichi Hirayama, Ryo Otsuka, Shuji Saito, Rikiya Fujita
A57 -year-old man was diagnosed with advanced gastric cancer(adenocarcinoma[tub2/por1])with multiple(S3, S4, S5, S6, S8)liver and para-aortic lymph node metastases. The tumor was classified as cT4a, N3, M1, HEP, cStage IV, and the patient received chemotherapy with S-1 plus CDDP(SP). After 10 courses of SP, a CT scan revealed that the primary tumor and the metastases disappeared. The patient presented with cCR and underwent distal gastrectomy, D2 lymph node dissection, partial hepatic resection, and cholecystectomy...
March 2018: Gan to Kagaku Ryoho. Cancer & Chemotherapy
https://www.readbyqxmd.com/read/29649145/combined-effect-of-anticancer-agents-and-cytochrome-c-decorated-hybrid-nanoparticles-for-liver-cancer-therapy
#4
Wejdan Al-Shakarchi, Ali Alsuraifi, Mohammed Abed, Marwan Abdullah, Alan Richardson, Anthony Curtis, Clare Hoskins
Hepatocellular carcinoma is an aggressive form of liver cancer that displays minimal symptoms until its late stages. Unfortunately, patient prognosis still remains poor with only 10% of patients surviving more than five years after diagnosis. Current chemotherapies alone are not offering efficient treatment, hence alternative therapeutic approaches are urgently required. In this work, we highlight the potential of combination of treatment of hepatocellular carcinoma with existing chemotherapies in combination with pro-apoptotic factor cytochrome C...
April 12, 2018: Pharmaceutics
https://www.readbyqxmd.com/read/29628227/structural-characterization-and-anticancer-activity-of-extracellular-polysaccharides-from-ascidian-symbiotic-bacterium-bacillus-thuringiensis
#5
Sathishkumar Ramamoorthy, Ananthan Gnanakan, Senthil S Lakshmana, Moovendhan Meivelu, Arun Jeganathan
In the present study, extracellular polysaccharides (EPS) producing bacterium Bacillus thuringiensis RSK CAS4 was isolated from ascidian Didemnum granulatum and its production was optimized by response surface methodology. Fructose and galactose were found as the major monosaccharides in the EPS from the strain RSK CAS4. Functional groups and structural characteristics of the EPS were characterized with FT-IR and1 HNMR. The purified EPS showed potent antioxidant properties in investigation against DPPH, hydroxyl, superoxide free radicals...
June 15, 2018: Carbohydrate Polymers
https://www.readbyqxmd.com/read/29627691/selective-cytotoxic-and-genotoxic-activities-of-5-2-bromo-5-methoxybenzylidene-thiazolidine-2-4-dione-against-nci-h292-human-lung-carcinoma-cells
#6
Maria do D Rodrigues, Priscila B G S Santiago, Karla M R Marques, Valéria R A Pereira, Maria C A B de Castro, Jeanne C L L Cantalice, Teresinha G da Silva, Mônica L Adam, Silene C do Nascimento, Julianna F C de Albuquerque, Gardenia C G Militao
BACKGROUND: Thiazolidine-2,4-dione ring system is used as a pharmacophore to build various heterocyclic compounds aimed to interact with biological targets. In the present study, benzylidene-2,4-thiazolidinedione derivatives (compounds 2-5) were synthesized and screened against cancer cell lines and the genotoxicity and cytotoxicity of the most active compound (5) was investigated on normal and lung cancer cell line. METHODS: For in vitro cytotoxic screening, the MTT assay was used for HL60 and K562 (leukemia), MCF-7 (breast adenocarcinoma), HT29 (colon adenocarcinoma), HEp-2 (cervix carcinoma) and NCI-H292 (lung carcinoma) tumor cell lines and Alamar-blue assay was used for non-tumor cells (PBMC, human peripheral blood mononuclear cells) were used...
November 22, 2017: Pharmacological Reports: PR
https://www.readbyqxmd.com/read/29625659/inhibition-of-coxsackievirus-b4-by-lactobacillus-plantarum
#7
Mattia Pia Arena, Firas Elmastour, Famara Sane, Djamel Drider, Daniela Fiocco, Giuseppe Spano, Didier Hober
The enterovirus Coxsackievirus B4 (CV-B4) can infect different human tissues and provoke abnormal function or destruction of various organs and cells. Moreover, its infections have been linked to the onset of type 1 diabetes. Coxsackievirus B4 is classified as a "challenging virus", due to the intense yet vain efforts to find effective prevention and therapeutic agents, especially within biological compounds. Lactobacillus plantarum is a lactic acid bacterium that is endowed with probiotic properties, and holds great potential for applications in medical and food industry sectors...
May 2018: Microbiological Research
https://www.readbyqxmd.com/read/29621602/neutrophil-extracellular-traps-possess-anti-human-respiratory-syncytial-virus-activity-possible-interaction-with-the-viral-f-protein
#8
Priscila Silva Sampaio Souza, Lia Vezenfard Barbosa, Larissa Figueiredo Alves Diniz, Gabriel Soares da Silva, Bruno Rafael Pereira Lopes, Pedro Miyadaira Ribeiro Souza, Gabriela Campos de Araujo, Diogo Pessoa, Juliana de Oliveira, Fátima Pereira Souza, Karina Alves Toledo
Human respiratory syncytial virus (hRSV) is one of the main etiological agents of diseases of the lower respiratory tract, and is often responsible for the hospitalization of children and the elderly. To date, treatments are only palliative and there is no vaccine available. The airways of patients infected with hRSV exhibit intense neutrophil infiltration, which is responsible for the release of neutrophil extracellular traps (NETs). These are extracellular structures consisting of DNA associated with intracellular proteins, and are efficient in capturing and eliminating various microorganisms, including some viruses...
April 2, 2018: Virus Research
https://www.readbyqxmd.com/read/29618128/anti-dfs70-autoantibodies-in-undifferentiated-connective-tissue-diseases-subjects-what-s-on-the-horizon
#9
Maria Infantino, Ora Shovman, Dolores Pérez, Mariangela Manfredi, Valentina Grossi, Maurizio Benucci, Francesca Li Gobbi, Francesca Bandinelli, Arianna Damiani, Paolo Moscato, Danielle Azoulay, Boris Gilburd, Yehuda Shoenfeld
Objective: The main objective was to determine the prevalence of anti-dense fine speckled (DFS70) antibodies in a stable population of undifferentiated connective tissue disease (UCTD) to better define their potential role. Methods: Immunological and clinical records of 91 long-standing UCTD patients were studied. DFS pattern was determined using the IIF ANA test on HEp-2 cells and anti-DFS70 antibodies were tested by chemiluminescence assay and by DFS70 line immunoassay...
April 3, 2018: Rheumatology
https://www.readbyqxmd.com/read/29614419/preparation-of-rhodium-iii-complexes-with-2-1h-quinolinone-derivatives-and-evaluation-of-their-in-vitro-and-in-vivo-antitumor-activity
#10
Xing Lu, Yi-Ming Wu, Jing-Mei Yang, Feng-E Ma, Liang-Ping Li, Sheng Chen, Ye Zhang, Qing-Ling Ni, Ying-Ming Pan, Xue Hong, Yan Peng
A series of 2(1H)-quinolinone derivatives and their rhodium (III) complexes were designed and synthesized. All the rhodium (III) complexes exhibited higher in vitro cytotoxicity for Hep G2, HeLa 229, MGC80-3, and NCI-H460 human tumor cell lines than their ligands and cisplatin, and among them complex 9 was found to be selectively cytotoxic to tumor cells. Further investigation revealed that complex 9 caused cell cycle arrest at the G2/M phase and induced apoptosis, and inhibited the proliferation of Hep G2 cells by impeding the phosphorylation of epidermal growth factor receptor (EGFR) and its downstream enzymes...
March 27, 2018: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/29606144/in-vitro-evaluation-of-chloroquine-loaded-and-heparin-surface-functionalized-solid-lipid-nanoparticles
#11
Joseph O Muga, Jeremiah W Gathirwa, Matshawandile Tukulula, Walter G Z O Jura
BACKGROUND: Use of chloroquine, an otherwise safe and relatively affordable anti-malarial drug, was discontinued due to widespread prevalence of resistant parasites. Many entrant anti-malarial drugs for treatment of chloroquine resistant malaria raises the concerns of cost and safety among other challenges. Innovative ways of circumventing chloroquine resistance is of paramount importance. Such may include nanoparticulate delivery strategies and targeting. This study evaluated physicochemical properties and in vitro antiplasmodial activity of chloroquine encapsulated heparin functionalized solid lipid nanoparticles (CQ-Hep-SLNs) and non-heparin functionalized SLNs (CQ-SLN) against Plasmodium falciparum...
April 2, 2018: Malaria Journal
https://www.readbyqxmd.com/read/29604911/extrinsic-and-intrinsic-apoptotic-responses-induced-by-shiitake-culinary-medicinal-mushroom-lentinus-edodes-agaricomycetes-aqueous-extract-against-a-larynx-carcinoma-cell-line
#12
Tiane C Finimundy, Gustavo Scola, Fernando J Scariot, Aldo J P Dillon, Sidnei Moura, Sérgio Echeverrigaray, João Pegas Henriques, Mariana Roesch-Ely
Cumulative evidence from research studies has shown that the shiitake culinary-medicinal mushroom, Lentinus edodes, is an excellent source of natural antitumor agents and is capable of inhibiting cancer cell growth. However, the cell signaling pathway that leads tumor cells to apoptosis is not well understood because many chemical compounds may be acting. This study investigated the chemopreventive effects of an L. edodes aqueous extract on human HEp-2 epithelial larynx carcinoma cells and normal human MRC-5 lung fibroblasts by identifying proliferative and apoptotic pathways...
2018: International Journal of Medicinal Mushrooms
https://www.readbyqxmd.com/read/29601194/electronic-properties-of-n-heterocyclic-carbenes-and-their-experimental-determination
#13
Han Vinh Huynh
N-Heterocyclic carbenes (NHCs) have become without doubt one of the most exciting and popular species in chemical science due to the ease of their preparation and modularity in stereoelectronic properties. Numerous types of NHCs have been prepared, and various experimental methodologies have been proposed for the study of their electronic properties in order to rationalize reactivities observed. The objective of this article is to provide a comprehensive overview of the most common and popular ones among them...
March 30, 2018: Chemical Reviews
https://www.readbyqxmd.com/read/29600627/-huaier-aqueous-extract-inhibits-proliferation-of-human-hepatoma-sk-hep-1-cells-through-up-regulation-of-autophagy
#14
Ai-Lin Yang, Tian-Ji Xia, Ya-Nan Zhao, Jia-Yin Song, Hao-Ran Shen, Zi-Hui Xu, Peng-Fei Tu, Zhong-Dong Hu
The purpose of this study was to investigate the effect of Huaier on autophagy of human hepatoma SK-HEP-1 cells and the effect of autophagy on the proliferation of SK-HEP-1 cells. CCK-8 assay was used to evaluate the effect of Huaier on the proliferation of SK-HEP-1 cells under different concentrations and different times. Acridine orange staining was used to measure the effect of Huaier on the autolysosome formation in SK-HEP-1 cells. Immunofluorescence assay was applied to examine the effect of Huaier on the expression and distribution of autophagy marker LC3 in SK-HEP-1 cells...
February 2018: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/29594364/recombinant-rabies-virus-expressing-interleukin-6-enhances-the-immune-response-in-mouse-brain
#15
Jun Luo, Boyue Zhang, Yuting Wu, Qin Tian, Meijun Mo, Teng Long, Mingzhu Mei, Ruqi Fan, Ziyu Lyu, He Jiang, Fan Wu, Yingyi Lin, Xiaofeng Guo
Rabies, which is caused by the rabies virus (RABV), is an ancient zoonosis that has a high mortality rate. Previous studies have indicated that recombinant RABV expressing canine interleukin-6 (rHEP-CaIL6), induced more virus-neutralizing antibodies than parental RABV in mice following intramuscular immunization. To investigate the immune response induced in the CNS by rHEP-CaIL6 after intranasal or intracranial administration in mice, the permeability of the blood-brain barrier (BBB), the infiltration of CD3 T cells, and innate immune response-related effector molecules in the CNS were examined...
March 28, 2018: Archives of Virology
https://www.readbyqxmd.com/read/29583085/functional-heterogeneity-of-endothelial-cells-derived-from-human-pluripotent-stem-cells
#16
Saritha S D'Souza, Akhilesh Kumar, Igor I Slukvin
Specification of endothelial cells (ECs) into arterial, venous, and lymphatic cells is a crucial process of vascular development, and expanding our knowledge about EC specification from human pluripotent stem cells (hPSCs) will aid the design of optimal strategies for producing desired types of ECs for therapies. In our prior studies, we revealed that hPSC-derived VE-cadherin(V)+ CD31+ CD34+ ECs are heterogeneous and include at least three major subsets with distinct hemogenic properties: V+ CD43/235a- CD73- hemogenic endothelial progenitors (HEPs), V+ CD43lo CD235a+ 73- angiogenic hematopoietic progenitors (AHPs), and V+ CD43/235a- 73+ non-HEPs...
March 27, 2018: Stem Cells and Development
https://www.readbyqxmd.com/read/29582875/facile-synthesis-of-a-two-photon-fluorescent-probe-based-on-pyrimidine-2-isothiocyanate-and-its-application-in-bioimaging
#17
Jie Yang, Wei Hu, Huirong Li, Hanna Hou, Yi Tu, Bo Liu
Two-photon microscopy imaging has been widely applied in biological imaging, but the development of two-photon absorption probes is obviously lagging behind in the development of imaging technology. In this paper, a two-photon fluorescent probe (1) based on pyrimidine 2-isothiocyanate has been designed and synthesized through a simple method for two-photon biological imaging. Probe 1 was able to couple effectively with the amino groups on biomolecules. To verify the reactivity of the isothiocyanate group on probe 1 and the amine groups on the biomolecules, d-glucosamine was chosen as a model biomolecule to conjugate with probe 1...
March 27, 2018: Photochemical & Photobiological Sciences
https://www.readbyqxmd.com/read/29581752/enhanced-antitumor-activity-of-combined-megestrol-acetate-and-arsenic-trioxide-treatment-in-liver-cancer-cells
#18
Yan Xia, Xianhao Liu, Beibei Liu, Xiaoshi Zhang, Geng Tian
Liver cancer is an aggressive malignancy with a very high fatality rate. Although megestrol acetate (MA) and arsenic trioxide (ATO) have shown an antitumor effect in liver cancer cells, the therapeutic benefits of MA or ATO alone in patients with liver cancer were limited. The aim of the present study was to elucidate whether the co-treatment of MA/ATO could enhance antitumor efficacy in liver cancer cell lines (Hep G2 and BEL 7402) and explore the underlying anti-cancer mechanisms. The cell viability, apoptotic response and expression levels of associated proteins were detected by Cell Counting Kit-8 assay, flow cytometry and western blotting, respectively...
April 2018: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29580640/a-randomized-open-label-trial-to-evaluate-and-compare-the-immunogenicity-and-safety-of-a-novel-liquid-hexavalent-dtwp-hib-hep-b-ipv-easysix%C3%A2-to-licensed-combination-vaccines-in-healthy-infants
#19
Lalitendu Mohanty, Sunil Sharma, Beauty Behera, Sachin Panwar, Charu Paliwal, Anu Gupta, Deepak Chandra Chilkoti, Anit Singh
Immunogenicity and safety of a newly developed liquid DTwP-Hib/HepB-IPV hexavalent vaccine (EasySix™) was evaluated and compared with administration of commercially licensed Pentavac SD® (DTwP-HepB/Hib) and Imovax Polio® vaccine in an open-label, randomized multi-centric trial. 284 participants, aged 6-10weeks, randomized in a 1:1 allocation, received three doses of test or comparator vaccines, administered 4weeks apart. Immunogenicity of the vaccines was determined by measuring the baseline and post-vaccination antibody responses and comparing the proportions of subjects achieving seroprotection against the vaccine antigens; safety was evaluated in terms of solicited (local and systemic) and unsolicited incidences in the follow up phase...
April 19, 2018: Vaccine
https://www.readbyqxmd.com/read/29568767/construction-and-characterization-of-a-recombinant-human-respiratory-syncytial-virus-encoding-enhanced-green-fluorescence-protein-for-antiviral-drug-screening-assay
#20
Min Xu, Yue-Ying Jiao, Yuan-Hui Fu, Nan Jiang, Yuan-Bo Zheng, Yi-Fei Yan, Mei Zhang, Yan-Peng Zheng, Wu-Yang Zhu, Xiang-Lei Peng, Jin-Sheng He
Human respiratory syncytial virus (RSV) is the single most important cause of lower respiratory tract disease in infants and young children and a major viral agent responsible for respiratory tract disease in immunosuppressed individuals and the elderly, but no vaccines and antiviral drugs are available. Herein the recombinant RSV (rRSV) encoding enhanced green fluorescence protein (EGFP, rRSV-EGFP) was constructed and the potential for screening anti-RSV drugs was investigated. The recombinant plasmid of pBRATm-rRSV-EGFP, containing T7 transcription cassette composed of T7 promoter, RSV antigenomic cDNA with EGFP gene, HDV ribozyme ( δ ), and T7 terminator in the order of 5' to 3', was constructed and cotransfected into BHK/T7-9 cells together with helper plasmids encoding N, P, L, and M2-1 gene, respectively...
2018: BioMed Research International
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