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Hua Zhou, Abdul Mondal, Aleksandra Dakic, Lama Alhawas, Xuefeng Liu, Zhixu He
The roles of protection of telomeres 1 (POT1) in human ovarian cancer have not been fully elucidated. Here, we investigated the impact of POT1 knockdown (POT1-KD) on in vitro cell proliferation, tumorigenesis, and histone deacetylase inhibitor (HDACi) response in human ovarian cancer-derived SK-OV3 cells. The POT1 gene was knocked down by infection with POT1 lenti-shRNA. POT1, c-Myc, and hTERT mRNA levels and relative telomere length were determined by qRT-PCR; POT1 protein levels were determined by western blot...
2018: BioMed Research International
Guo-Ying Sun, Hui-Hui Yang, Xin-Xin Guan, Wen-Jing Zhong, Yong-Ping Liu, Ming-Yuan Du, Xiao-Qin Luo, Yong Zhou, Cha-Xiang Guan
Vasoactive intestinal peptide (VIP) is one of the most abundant neuropeptides in the lungs with various biological characters. We have reported that VIP inhibited the expressions of TREM-1 and IL-17A, which are involved in the initiation and amplification of inflammation in acute lung injury (ALI). However, the overall effect of VIP on ALI remains unknown. The aim of this study is to investigate the therapeutic effect of VIP mediated by lentivirus (Lenti-VIP) on lipopolysaccharide (LPS)-induced murine ALI. We found that the expression of intrapulmonary VIP peaked at day7 after the intratracheal injection of Lenti-VIP...
March 12, 2018: Molecular Immunology
G Simonte, G Isernia, B Fiorucci, E Paciaroni, E Cieri, A Rebonato, M Lenti
During implantation of an Ovation endograft for abdominal aortic aneurysm correction a patient experienced anaphylactic reaction following polymer leakage outside the device circuit. Procedure was completed after hemodynamic stabilization. Since postoperative day ll, patient complained for loss of legs strength. Medullar injury was excluded by electromyography test and the clinical signs attributed to muscular necrosis and peripheral nerve involvement following arterial embolization. Furthermore, immediately after surgery, a wide erythematous area appeared in the lumbar region...
March 5, 2018: Annals of Vascular Surgery
N Li, C Liu, D Y Pan, Y Z Tseng, J Zhou, X Q Zeng, T C Luo, S Y Chen
Objective: To investigate the effect and mechanism of Kruppel-like factor 2 (KLF2) on the migration of human liver sinusoidal endothelial cells (LSEC). Methods: Cultured human LSEC were infected with different lenti-viruses to overexpress or suppress KLF2 expression (LV5-KLF2 and LV3-shKLF2, respectively), the infection efficacies were examined by real-time PCR and Western blot analysis.Transwell migration assay was used to investigate the role of KLF2 on the migration of LSEC.The mRNA and protein expression of vascular endothelial growth factor receptor-2 (VEGFR-2) were detected by real-time PCR and Western blot analysis, respectively...
February 13, 2018: Zhonghua Yi Xue za Zhi [Chinese medical journal]
Marco Masi, Paola Nocera, Angela Boari, Alessio Cimmino, Maria Chiara Zonno, Alessandro Infantino, Maurizio Vurro, Antonio Evidente
Ascochyta lentis var. lathyri has recently been reported to be the causal agent of Ascochyta blight of grass pea (Lathyrus sativus), a disease characterized by the appearance of necrotic lesions of leaves and stems. Considering the novelty of the pathogen and the possible involvement of secondary metabolites in symptom appearance, a study was carried out to ascertain the capability of this fungus to produce bioactive metabolites. Some phytotoxic phenols were isolated from the culture filtrates of the fungus...
February 28, 2018: Journal of Natural Products
Antonio Di Sabatino, Marco Vincenzo Lenti, Gino Roberto Corazza
No abstract text is available yet for this article.
February 17, 2018: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
Hossein Mahboudi, Masoud Soleimani, Seyed Ehsan Enderami, Mousa Kehtari, Abdolreza Ardeshirylajimi, Mohamad Eftekhary, Bahram Kazemi
Induced pluripotent stem cells (iPSCs) make an attractive source for regenerative medicine. The objective of our study was to establish a new method for differentiation of human iPSCs toward chondrocyte by overexpression of MicroRNA-140 (miR-140) and use of transforming growth factor beta 3 (TGFβ3) in high-cell density culture systems. We prepared vectors and then was used for recombinant Lenti virus production in HEK-293 cell. Transducted cells were selected and cultured in pellet culture system and were harvested after days 7, 14 and 21...
February 15, 2018: Biologicals: Journal of the International Association of Biological Standardization
Rui Li, Hongxia Zhang, Xiling Zheng
The present study aimed to investigate microRNA (miR/miRNA)-34c expression and the association of miR-34c with B cell lymphoma 2 (BCL2) in M4e laryngeal carcinoma cell line. M4e laryngeal carcinoma cells were cultured and transfected with lenti-miR-34c or scramble miRNA for 72 h. Cell viability and the percentage of cells undergoing apoptosis of transfected cells were detected using MTT and Annexin V/allophycocyanin and propidium iodide assays, respectively. Reverse transcription-quantitative polymerase chain reaction (RT-qPCR) and western blot analysis were performed to determine BCL2 mRNA and protein expression in transfected M4e cells...
March 2018: Oncology Letters
Huan Xu, Wenzhi Li, Kai Qi, Juan Zhou, Meng Gu, Zhong Wang
Previous studies have assessed nucleobindin 2 (NUCB2) expression in multiple urological cancer cell lines and detected its effect on renal cancer cell apoptosis. Additionally, certain reports have indicated a novel function of NUCB2 in promoting invasion in renal cancer. The levels of NUCB2 expression in different tumor cell lines were detected by quantitative reverse transcription polymerase chain reaction (RT-qPCR). Human NUCB2 and β-actin (ACTB) cDNA plasmids were inserted into lentivirus plasmids, which were then transfected into 786-O cells...
February 2018: Oncology Letters
Abdulaziz I Al Somali, Faisal N Al-Dossari, Khalid E Emara, Ahmed Al Habash
PURPOSE: The purpose of the study was to review the safety and stability of scleral-fixated intraocular lens (IOL) 2 years after implantation in children with idiopathic ectopia lentis (EL). METHODS: This retrospective case series enrolled children with EL managed between 2011 and 2015 at a tertiary eye hospital in the eastern of Saudi Arabia. Data were collected on age, gender, vision, isolated or syndromic pathology, intraoperative and postoperative complications, spherical equivalent refraction, and final best-corrected visual acuity (BCVA)...
October 2017: Middle East African Journal of Ophthalmology
Jia Liu, Jiamei Liu, Linying Shi, Fan Zhang, Liping Yu, Xinchun Yang, Jun Cai
The present study aimed to explore microRNA-126 (miR-126) as a novel therapeutic target for primary hypertension. The lentiviral vector containing human immunodeficiency virus 1 (HIV‑1), the miR‑126 gene knockdown viral vector (lenti-miR-126-KD), and control lentiviral vector (lenti‑scramble‑miR) were constructed. Spontaneously hypertensive rats were randomly divided into 4 groups, which received a high dose of lenti‑miR‑126‑KD (1x108, n=5), low dose of lenti‑miR‑126‑KD (1x107, n=6), scramble‑miR (5x107, n=6), and PBS (n=6)...
April 2018: International Journal of Molecular Medicine
Mahsa Khorramdelazad, Ido Bar, Paul Whatmore, Gabrielle Smetham, Vijay Bhaaskaria, Yuedong Yang, Shahla Hosseini Bai, Nitin Mantri, Yaoqi Zhou, Rebecca Ford
BACKGROUND: Ascochyta blight, caused by the fungus Ascochyta lentis, is one of the most destructive lentil diseases worldwide, resulting in over $16 million AUD annual loss in Australia alone. The use of resistant cultivars is currently considered the most effective and environmentally sustainable strategy to control this disease. However, little is known about the genes and molecular mechanisms underlying lentil resistance against A. lentis. RESULTS: To uncover the genetic basis of lentil resistance to A...
January 31, 2018: BMC Genomics
Lorenzo Massimo Polgar, Francesco Criscitiello, Machiel van Essen, Rodrigo Araya-Hermosilla, Nicola Migliore, Mattia Lenti, Patrizio Raffa, Francesco Picchioni, Andrea Pucci
Conductive rubber nanocomposites were prepared by dispersing conductive nanotubes (CNT) in thermoreversibly cross-linked ethylene propylene rubbers grafted with furan groups (EPM-g-furan) rubbers. Their features were studied with a strong focus on conductive and mechanical properties relevant for strain-sensor applications. The Diels-Alder chemistry used for thermoreversible cross-linking allows for the preparation of fully recyclable, homogeneous, and conductive nanocomposites. CNT modified with compatible furan groups provided nanocomposites with a relatively large tensile strength and small elongation at break...
January 23, 2018: Nanomaterials
Nikoletta Psatha, Penelope-Georgia Papayanni, Evangelia Yannaki
Hemoglobinopathies, including severe β-thalassemia and sickle cell disease, represent the most common monogenic disorders worldwide. Allogeneic hematopoietic stem cell transplantation (allo-HCT) is the only approved curative option for these syndromes, albeit limited to patients having a suitable donor. Gene therapy, by making use of the patient's own hematopoietic stem cells to introduce a normal copy of the β-globin gene by viral vectors, bridged the gap between the need for cure of patients with hemoglobinopathies and the lack of a donor, without incurring the immunological risks of allo-HSCT...
2017: Current Gene Therapy
Dong-Lei Wang, Wen-Ying Dai, Wen Wang, Ying Wen, Ying Zhou, Yi-Tong Zhao, Jian Wu, Pei Liu
BACKGROUND & AIMS: We have reported that tumor necrosis factor- (TNF-α) is critical for reduction of glomerular filtration rate (GFR) in rats with fulminant hepatic failure (FHF). The present study aims to evaluate the underlying mechanisms of decreased GFR during acute hepatic failure. METHODS: Rats with FHF induced by D-galactosamine plus lipopolysaccharide (GalN/LPS) were injected intravenously with recombinant lentivirus harboring shRNA against the protein kinase C-α (PKC-α) gene (Lenti-shRNA-PKC-α)...
January 10, 2018: American Journal of Physiology. Renal Physiology
Miao-Yu Guo, Lei Shang, Yang-Yang Hu, Li-Ping Jiang, Yu-Ying Wan, Qin-Qin Zhou, Kun Zhang, Hong-Fei Liao, Jing-Lin Yi, Xiao-Jian Han
Alzheimer's disease, one of the most common neurodegenerative diseases, is pathologically characterized by Amyloid beta containing plaques and neurofibrillary tangles. Amyloid beta (Aβ) induces neuronal apoptosis through the intracellular Ca2+ increase, subsequent hyperactivation of cyclin-dependent kinase 5 (Cdk5) and mitochondrial abnormality. Recently, Cdk5 was identified as an upstream regulator of mitochondrial fission during neuronal apoptosis, but the underlying mechanism remains unclear. Here, in vitro phosphorylation assays showed that Cdk5 could phosphorylate the recombinant Drp1 at Serine 579...
January 18, 2018: Journal of Cellular Biochemistry
Sanket S Shah, Sudhi P Kurup, Hantamalala Ralay Ranaivo, Rebecca B Mets-Halgrimson, Marilyn B Mets
BACKGROUND: Marfan syndrome (MFS) is a genetic disorder that affects multiple organ systems, including the eye. The most common ocular manifestations include ectopia lentis and retinal detachment. The current literature qualitatively cites that MFS patients have miotic or "poorly dilating" pupils. This study was the first to quantitatively assess pupillary function in MFS patients. MATERIALS AND METHODS: 57 eyes from 29 MFS patients, 36 eyes from 18 pediatric age- and gender-matched controls, and 44 eyes from 22 adult age-matched controls were measured in a clinic-based cross sectional study...
January 16, 2018: Ophthalmic Genetics
Qianwen Shao, Jing Xu, Xin Guan, Bing Zhou, Wei Wei, Rong Deng, Dongzhen Li, Xinyu Xu, Haitao Zhu
We aimed to analyze the in vitro and in vivo effects of miRNA-19b/20a/92a on gastric cancer stem cells (GCSCs) and the related mechanism. GCSCs were cultured until adherence and differentiation, and subjected to miRNA microarray analysis to find and to verify miRNA deletion. Cells stably expressing lentivirus carrying miRNA-19b/20a/92a were constructed by transfection. The relationship between miRNA-19b/20a/92a and renewal of GCSCs was studied by the tumor sphere assay, and that between miRNA-19b/20a/92a and their proliferation was explored with MTT and colony formation assays...
2018: International Journal of Medical Sciences
Sujing Sun, Jun Xiao, Jiahui Huo, Zhijun Geng, Kui Ma, Xiaoyan Sun, Xiaobing Fu
BACKGROUND: Patients with a deep burn injury are characterized by losing the function of perspiration and being unable to regenerate the sweat glands. Because of their easy accession, multipotency, and lower immunogenicity, bone marrow-derived mesenchymal stem cells (BM-MSCs) represent as an ideal biological source for cell therapy. The aim of this study was to identify whether targeting the promotor of ectodysplasin (EDA) by CRISPR/dCas9-effector (dCas9-E) could induce the BM-MSCs to differentiate into sweat gland-like cells (SGCs)...
January 12, 2018: Stem Cell Research & Therapy
Aline Rimoldi Ribeiro, Luciana Lima, Larissa Aguiar de Almeida, Joana Monteiro, Cláudia Jassica Gonçalves Moreno, Juliana Damieli Nascimento, Renato Freitas de Araújo, Fernanda Mello, Luciamáre Perinetti Alves Martins, Márcia Aparecida Silva Graminha, Marta Maria Geraldes Teixeira, Marcelo Sousa Silva, Mário Steindel, João Aristeu da Rosa
Chagas disease affects between six and seven million people. Its etiological agent, Trypanosoma cruzi, is classified into six discrete typing units (DTUs). The biological study of 11 T. cruzi strains presented here included four parameters: growth kinetics, parasitemia curves, rate of macrophage infection, and serology to evaluate IgM, total IgG, IgG1, IgG2a, and IgG3. Sequencing of small subunit of ribosomal RNA (SSU rRNA)was performed and the T. cruzi strains were classified into three DTUs. When their growth in liver infusion tryptose medium was represented in curves, differences among the strains could be noted...
January 8, 2018: American Journal of Tropical Medicine and Hygiene
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