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  • Open Access

    ARTICLE

    Hellebrigenin induces apoptosis in colorectal cancer Cells through induction of excessive reactive oxygen species

    CHUNJIAO LIU1,2, QINHONG KONG1,2, FENG PAN1,2, SHAN JIANG1,2, LINGJIE MENG1,2, GAI HUANG1,2, LIDAN LU1,2, SANHUA LI1,2,*, YUN LIU1,2,3,*

    BIOCELL, Vol., , DOI:10.32604/biocell.2021.015836

    Abstract Traditional Chinese medicine (TCM) has been increasingly applied in both preventing and treating a variety of cancers in the last decades, attributing to its fewer side effects as compared with chemotherapy drugs. Hellebrigenin, a component of Chanpi from the skin of Bufo bufogargarizans Cantor or Duttaphrynus melanostictus has been reported to have an obvious anti-cancer activity on various cancers. However, the effect and mechanism of hellebrigenin on colorectal cancers were still unknown. Herein, the present study demonstrated hellebrigenin significantly reduced viability and triggered apoptosis via the intrinsic pathway in colorectal cancer cell lines HCT116 and HT29 in vitro and in… More >

  • Open Access

    ARTICLE

    DTL facilitates the Fanconi anemia pathway for ultraviolet-induced DNA repair in retinal pigment epithelial cells

    JIUCHUN GUO1, JIE PAN2,*, QIANQIAN GUO2

    BIOCELL, Vol., , DOI:10.32604/biocell.2021.015785

    Abstract The excessive energy of light, especially the invisible rays with lower wavelength, is basically absorbed by retinal pigment epithelium (RPE) and usually causes DNA damage. The molecular mechanism behind DNA damage repair response to this frequent stress in RPE is not clearly understood. In this study, we determined that the Fanconi anemia (FA) pathway was activated in human RPE ARPE-19 cells after ultraviolet (UV) B and C treatment. Moreover, immunoprecipitation (IP) of FANCD2 indicated that denticleless E3 ubiquitin protein ligase homolog (DTL) closely interacted with FANCD2. Knockdown of DTL weakened the activity of the FA pathway in ARPE-19 cells responding… More >

  • Open Access

    ARTICLE

    Incidence, genomic diversity, and evolution of strawberry mottle virus in China

    LINGJIAO FAN, CHENGYONG HE, MENGMENG WU, DEHANG GAO, ZHENFEI DONG, SHENGFAN HOU, ZEKUN FENG, HONGQING WANG*

    BIOCELL, Vol., , DOI:10.32604/biocell.2021.015396

    Abstract Strawberry mottle virus (SMoV) is one of the most common viruses infecting strawberries, causing losses to fruit yield and quality. In this study, 165 strawberry leaf samples were collected from six provinces of China, 46 of which tested positive for SMoV. The complete genome sequences of 11 SMoV isolates were obtained from Liaoning (DGHY3, DGHY16-2, DGHY17, DGHY20-2, DGHY21, DGHY26-2), Shandong (SDHY1, SDHY5, SDHY31-2, SDHY33-2), and Beijing (BJMX7). The RNA1 and RNA2 nucleotide identities between the 11 Chinese isolates were 95.4–99.3% and 96.3–99.6%, respectively, and they shared 78.4–96.6% and 84.8–93.5% identities with the available SMoV isolates in GenBank. Recombination analysis revealed… More >

  • Open Access

    ARTICLE

    Zinc oxide nanoparticles and epibrassinolide enhanced growth of tomato via modulating antioxidant activity and photosynthetic performance

    MOHAMMAD FAIZAN1, AHMAD FARAZ2, SHAMSUL HAYAT3, JAVAID A. BHAT4,*, FANGYUAN YU1,*

    BIOCELL, Vol., , DOI:10.32604/biocell.2021.015363

    Abstract Nanotechnology has greatly expanded the applications of nanoparticles (NPs) domain in the scientific field. In this context, the zinc oxide nanoparticles (ZnO-NPs) and 24-epibrassinolide (EBL) has been revealed to positively regulate plant metabolism and growth. In the present study, we investigated the role of ZnO-NPs and EBL in the regulation of plant growth, photosynthetic efficiency, enzymes activities and fruit yield in tomato. Foliar treatment of ZnO-NPs at three levels (10, 50 or 100 ppm) and EBL (10−8 M) were applied separately or in combination to the foliage of plant at 35–39 days after sowing (DAS); and the control plants were… More >

  • Open Access

    REVIEW

    Oxidative metabolism of photosynthetic species and the exposure to some freshwater and marine biotoxins

    SUSANA PUNTARULO1,2, PAULA MARIELA GONZÁLEZ1,2,*

    BIOCELL, Vol., , DOI:10.32604/biocell.2021.015360

    Abstract Environmental climate conditions could lead to an increasing global occurrence of microorganism blooms that synthesize toxins in the aquatic environments. These blooms could result in significantly toxic events. Responses of photosynthetic organisms to adverse environmental conditions implicate reactive oxygen species generation; but, due to the presence of a varied cellular antioxidant defense system and complex signaling networks, this oxidative stress could act as an important factor in the environmental adaptive processes. The objective of this review was to assess how some biotoxins are implicated in the generation of oxidative and nitrosative metabolic changes, not only in biotoxin-producing organisms but also… More >

  • Open Access

    REVIEW

    Microfluidic chips for the endothelial biomechanics and mechanobiology of the vascular system

    HAORAN SU1, KEXIN LI1, XIAO LIU1,*, JING DU1, LI WANG4, XIAOYAN DENG3, YUBO FAN1,2,*

    BIOCELL, Vol., , DOI:10.32604/biocell.2021.014900

    Abstract Endothelial cells arranged on the vessel lumen are constantly stimulated by blood flow, blood pressure and pressureinduced cyclic stretch. These stimuli are sensed through mechanical sensory structures and converted into a series of functional responses through mechanotransduction pathways. The process will eventually affect vascular health. Therefore, there has been an urgent need to establish in vitro endothelial biomechanics and mechanobiology of models, which reproduce three-dimensional structure vascular system. In recent years, the rapid development in microfluidic technology makes it possible to replicate the key structural and functionally biomechanical characteristics of vessels. Here, we summarized the progress of microfluidic chips used… More >

  • Open Access

    ARTICLE

    KRT4 suppresses oral squamous cell carcinoma development by reducing ATG4B-mediated autophagy

    XIAOXU LI, YUN WANG, JUAN FANG, ZHI WANG, XIAOAN TAO, JUAN XIA, BIN CHENG*

    BIOCELL, Vol., , DOI: 10.32604/biocell.2021.014844

    Abstract Head and neck squamous cell carcinoma is the sixth most common tumor worldwide, and half of head and neck squamous cell carcinoma patients are with oral squamous cell carcinoma (OSCC). 300,000 new cases of OSCC were reported annually. Even with multi-modality treatment, the prognosis of OSCC remains unsatisfactory. Thus, it is urgent to discover novel therapeutic targets for OSCC. Some microarray studies have revealed that Keratin 4 (KRT4) is downregulated in OSCC, whereas its role in OSCC development remains unknown. The present study revealed that KRT4 suppressed OSCC progression by inducing cell apoptosis and inhibiting cell invasion. In addition, KRT4… More >

  • Open Access

    ARTICLE

    Ultrastructural analysis shows persistence of adhesion and tight junction proteins in mature human hair

    LORENZO ALIBARDI1, BERND NOECKER2

    BIOCELL, Vol., , DOI:10.32604/biocell.2021.013913

    Abstract The differentiation of cells composing mature human hairs produces layers with different corneous characteristics that would tend to flake away one from another, as in the corneous layer of the epidermis, without anchoring junctions. It is likely that cell junctions established in the forming cells of the hair bulb are not completely degraded like in the corneous layer of the epidermis but instead remain in the hair shaft to bind mature cuticle, cortex, and medulla cells into a compact hair shaft. During cell differentiation in hairs, cell junctions seem to disappear, and little is known about the fate of junctional… More >

  • Open Access

    ARTICLE

    Immunocytochemical examination of PTEN and Ki-67 for endometrial carcinoma using thin-layer endometrial preparations

    XI YANG1, KE MA1,*, RUI CHEN1, NAIYI ZHANG2, YITING MENG3, JIA WEN1, QINPING LIAO1

    BIOCELL, Vol., , DOI: 10.32604/biocell.2021.013625

    Abstract The current study is designed to evaluate certain immunocytochemical (ICC) biomarkers to gain a better cytodiagnosis. For this purpose, 85 patients from March 2016 to March 2019 who planned to get a hysteroscopy assay were recruited. Cytological sampling was conducted by scratching the uterus cavity using SAP-1, and the samples were processed as liquid-based smears, using SurePath technology. 36 patients diagnosed with EC or atypical endometrial hyperplasia were recruited in this study. 33 cases were diagnosed with EC, and 3 cases were diagnosed with atypical endometrial hyperplasia, allocated with EC or precancerous lesions group. 26 cases were diagnosed with benign… More >

  • Open Access

    ARTICLE

    The F5 gene predicts poor prognosis of patients with gastric cancer by promoting cell migration identified using a weighted gene co-expression network analysis

    MENGYI TANG1,2,3,4,#, BOWEN YANG1,2,3,4,#, CHUANG ZHANG1,2,3,4, CHAOXU ZHANG1,2,3,4, DAN ZANG1,2,3,4, LIBAO GONG1,2,3,4, YUNPENG LIU1,2,3,4, ZHI LI1,2,3,4,*, XIUJUAN QU1,2,3,4,*

    BIOCELL, Vol., , DOI:10.32604/biocell.2021.010119

    Abstract Distal gastric cancer (DGC) is a subgroup of gastric cancer (GC), which has different molecular characteristics from proximal gastric cancer (PGC). These differences result in different overall survival (OS) rates; however, data pertaining to the survival rate in PGC or DGC are contradictory. This suggests that the location of GC is not the unique cause of the different survival rates, while the molecular characteristics might be more important factors determining the prognosis of DGC. Therefore, the aim of this study was to discover key prognostic factors in DGC using bioinformatic methods and to explore the potential molecular mechanism. The Cancer… More >

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