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Experimental Cell Research

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https://www.readbyqxmd.com/read/28729093/pim-kinases-1-2-and-3-in-intracellular-lif-signalling-proliferation-and-apoptosis-in-trophoblastic-cells
#1
Stella Mary Photini, Wittaya Chaiwangyen, Maja Weber, Boodor Al-Kawlani, Rodolfo R Favaro, Udo Jeschke, Ekkehard Schleussner, Diana M Morales-Prieto, Udo R Markert
Proviral insertion in murine (PIM) lymphoma proteins are mainly regulated by the Janus Kinase/Signal Transducer Activator of Transcription (JAK/STAT) signaling pathway, which can be activated by members of the Interleukin-6 (IL-6) family, including Leukemia Inhibitory Factor (LIF). Aim of the study was to compare PIM1, PIM2 and PIM3 expression and potential cellular functions in human first and third trimester trophoblast cells, the immortalized first trimester extravillous trophoblast cell line HTR8/SVneo and the choriocarcinoma cell line JEG-3...
July 17, 2017: Experimental Cell Research
https://www.readbyqxmd.com/read/28729092/annexin-a2-modulated-proliferation-of-pulmonary-arterial-smooth-muscle-cells-depends-on-caveolae-and-caveolin-1-in-hepatopulmonary-syndrome
#2
Lin Liao, Binwu Zheng, Bin Yi, Chang Liu, Lin Chen, Ziyang Zeng, Jing Gao
We have established that annexin A2 (ANXA2) is an important factor in the experimental hepatopulmonary syndrome (HPS) serum-induced proliferation of pulmonary arterial smooth muscle cells (PASMCs). However, the detailed mechanism remains unclear. ANXA2 translocated to the caveolin-enriched microdomains (caveolae) in PASMCs upon HPS serum stimulation. The disruption of caveolae by Methyl-β-cyclodextrin (MβCD) alleviated the caveolae recruitment of ANXA2 and the ANXA2-mediated activation of ERK1/2 and NF-κB, so that ANXA2-modulated PASMC proliferation was suppressed...
July 17, 2017: Experimental Cell Research
https://www.readbyqxmd.com/read/28720386/cdc42-interacting-protein-4-silencing-relieves-pulmonary-fibrosis-in-stz-induced-diabetic-mice-via-the-wnt-gsk-3%C3%AE-%C3%AE-catenin-pathway
#3
Xiaoping Zhang, Ying Liu, Runxia Shao, Wei Li
Cdc42-interacting protein-4 (CIP4) has been reported to be closely associated with diabetic nephropathy in rat. However, little is known about the correlation between CIP4 and diabetic pulmonary fibrosis (PF) in mice. Here, diabetes was induced by streptozotocin (STZ), and later lung tissue was collected and subjected to hematoxylin and eosin (H & E) staining for morphological examination. The distinct up-regulation of CIP4 was observed in diabetic PF mice. CIP4 silencing increased overall weight and decreased lung weight...
July 15, 2017: Experimental Cell Research
https://www.readbyqxmd.com/read/28720385/differences-of-lipid-membrane-modulation-and-oxidative-stress-by-digoxin-and-21-benzylidene-digoxin
#4
Lilian Nd Silva, Silmara Lg Alves, Jessica Venugopal, Vanessa F Cortes, Herica L Santos, José Afp Villar, Leandro A Barbosa
Cardiotonic steroids (CTS) are compounds which bind to the Na,K-ATPase, leading to its inhibition and in some cases initiating signaling cascades. Long utilized as a treatment for congestive heart disease, CTS have more recently been observed to inhibit proliferation and cause apoptosis in several cancer cell lines. A synthetic derivative of the CTS digoxin, called 21-benzylidene digoxin (21-BD), activates the Na,K-ATPase rather than cause its inhibition, as its parent compound does. Here, the mechanism behind the unique effects of 21-BD are further explored...
July 15, 2017: Experimental Cell Research
https://www.readbyqxmd.com/read/28712929/exosomes-from-osteosarcoma-and-normal-osteoblast-differ-in-proteomic-cargo-and-immunomodulatory-effects-on-t-cells
#5
Ryan M Troyer, Carl E Ruby, Cheri P Goodall, Liping Yang, Claudia S Maier, Hassan A Albarqi, Jacqueline V Brady, Kallan Bathke, Oleh Taratula, Dan Mourich, Shay Bracha
BACKGROUND: Canine osteosarcoma (OSA) is the most common cancer of the appendicular skeleton and is associated with high metastatic rate to the lungs and poor prognosis. Recent studies have shown the impact of malignant-derived exosomes on immune cells and the facilitation of immune evasion. In the current study, we have characterized the proteomic profile of exosomes derived from healthy osteoblasts and osteosarcoma cell lines. We investigated the direct impact of these exosomes on healthy T cells...
July 13, 2017: Experimental Cell Research
https://www.readbyqxmd.com/read/28712928/bone-marrow-derived-mesenchymal-stem-cells-propagate-immunosuppressive-anti-inflammatory-macrophages-in-cell-to-cell-contact-independent-and-dependent-manners-under-hypoxic-culture
#6
Naoki Takizawa, Naoto Okubo, Masaharu Kamo, Naoyuki Chosa, Toshinari Mikami, Keita Suzuki, Seiji Yokota, Miho Ibi, Masato Ohtsuka, Masayuki Taira, Takashi Yaegashi, Akira Ishisaki, Seiko Kyakumoto
Immunosuppressive/anti-inflammatory macrophage (Mφ), M2-Mφ that expressed the typical M2-Mφs marker, CD206, and anti-inflammatory cytokine, interleukin (IL)-10, is beneficial and expected tool for the cytotherapy against inflammatory diseases. Here, we demonstrated that bone marrow-derived lineage-positive (Lin+) blood cells proliferated and differentiated into M2-Mφs by cooperation with the bone marrow-derived mesenchymal stem cells (MSCs) under hypoxic condition: MSCs not only promoted proliferation of undifferentiated M2-Mφs, pre-M2-Mφs, in the Lin+ fraction via a proliferative effect of the MSCs-secreted macrophage colony-stimulating factor, but also promoted M2-Mφ polarization of the pre-M2-Mφs through cell-to-cell contact with the pre-M2-Mφs...
July 13, 2017: Experimental Cell Research
https://www.readbyqxmd.com/read/28712927/role-of-hepatic-annexin-a6-in-fatty-acid-induced-lipid-droplet-formation
#7
Rose Cairns, Anna Alvarez-Guaita, Inés Martínez-Saludes, Sundeep J Wason, Jacky Hanh, Shilpa R Nagarajan, Elham Hosseini-Beheshti, Katia Monastyrskaya, Andrew J Hoy, Christa Buechler, Carlos Enrich, Carles Rentero, Thomas Grewal
Annexin A6 (AnxA6) has been implicated in the regulation of endo-/exocytic pathways, cholesterol transport, and the formation of multifactorial signaling complexes in many different cell types. More recently, AnxA6 has also been linked to triglyceride storage in adipocytes. Here we investigated the potential role of AnxA6 in fatty acid (FA) - induced lipid droplet (LD) formation in hepatocytes. AnxA6 was associated with LD from rat liver and HuH7 hepatocytes. In oleic acid (OA) -loaded HuH7 cells, substantial amounts of AnxA6 bound to LD in a Ca(2+)-independent manner...
July 13, 2017: Experimental Cell Research
https://www.readbyqxmd.com/read/28711459/influence-of-the-bud-neck-on-nuclear-envelope-fission-in-saccharomyces-cerevisiae
#8
Patricia G Melloy, Mark D Rose
Studies have shown that nuclear envelope fission (karyokinesis) in budding yeast depends on cytokinesis, but not distinguished whether this was a direct requirement, indirect, because of cell cycle arrest, or due to bud neck-localized proteins impacting both processes. To determine the requirements for karyokinesis, we examined mutants conditionally defective for bud emergence and/or nuclear migration. The common mutant phenotype was completion of the nuclear division cycle within the mother cell, but karyokinesis did not occur...
July 12, 2017: Experimental Cell Research
https://www.readbyqxmd.com/read/28709980/downregulation-of-usp18-inhibits-growth-and-induces-apoptosis-in-hepatitis-b-virus-related-hepatocellular-carcinoma-cells-by-suppressing-bcl2l1
#9
Jing Cai, Tiande Liu, Xiaoliu Jiang, Changkuo Guo, Anwen Liu, Xinlan Xiao
Ubiquitin-specific peptidase 18 (USP18) is closely related with hepatitis B virus (HBV), which has been involved in tumourigenesis. However, there has been little research into the role of USP18 on the progression of hepatocellular carcinoma (HCC), especially in HBV-related HCC. In present study, we found that USP18 expression was aberrantly elevated in HCC tissues than adjacent non-tumour tissues. Importantly, USP18 expression was higher in HBV-related HCC cell lines (HepG2.2.15 and Hep3B) than HBV-unrelated HCC cell lines...
July 11, 2017: Experimental Cell Research
https://www.readbyqxmd.com/read/28705727/the-piezo1-protein-ion-channel-functions-in-human-nucleus-pulposus-cell-apoptosis-by-regulating-mitochondrial-dysfunction-and-the-endoplasmic-reticulum-stress-signal-pathway
#10
Xiao-Fei Li, Ping Leng, Zhao Zhang, Hai-Ning Zhang
The Piezo1 protein ion channel is a novel mechanical stretch-activated ion channel (SAC) closely related to mechanical signals. Mechanotransduction plays a crucial role in organ development and homeostasis. Previous studies identified Piezo1 and demonstrated that it is distinct from other ion channels with well-established roles in lower organisms. Mechanical stretch-activated ion channels from other organisms are not conserved in mammals or do not act as mechanically activated channels in mammals. In the current study, we explored the role of the Piezo1 ion channel in human nucleus pulposus cell (NP cell) apoptosis through mechanical force-induced mitochondrial dysfunction and endoplasmic reticulum stress...
July 10, 2017: Experimental Cell Research
https://www.readbyqxmd.com/read/28697919/fatty-acid-translocase-promoted-hepatitis-b-virus-replication-by-upregulating-the-levels-of-hepatic-cytosolic-calcium
#11
Jian Huang, Lei Zhao, Ping Yang, Zhen Chen, Xiong Z Ruan, Ailong Huang, Ni Tang, Yaxi Chen
Hepatitis B virus (HBV) is designated a "metabolovirus" due to the intimate connection between the virus and host metabolism. The nutrition state of the host plays a relevant role in the severity of HBV infection. Metabolic syndrome (MS) is prone to increasing HBV DNA loads and accelerating the progression of liver disease in patients with chronic hepatitis B (CHB). Cluster of differentiation 36 (CD36), also named fatty acid translocase, is known to facilitate long-chain fatty acid uptake and contribute to the development of MS...
July 8, 2017: Experimental Cell Research
https://www.readbyqxmd.com/read/28694023/reactivity-toward-bifidobacterium-longum-and-enterococcus-hirae-demonstrate-robust-cd8-t-cell-response-and-better-prognosis-in-hbv-related-hepatocellular-carcinoma
#12
Yihui Rong, Zheng Dong, Zhixian Hong, Yun Jin, Wei Zhang, Bailong Zhang, Wei Mao, Huifang Kong, Chunping Wang, Bin Yang, Xudong Gao, Zhenyu Song, Susan E Green, Haihan K Song, Hongbo Wang, Yinying Lu
Recent studies suggest that several bacterial species are involved in tumor immunosurveillance and antitumor immunity. The role of bacteria in immune responses in HBV-related hepatocellular carcinoma (HCC) patients is still unknown. In this study, we examined the bacteria-reactive CD8(+) T cell response in patients with HBV-related HCC. We found that circulating CD8(+) T cells from healthy individuals demonstrated minimal or zero specificity toward a series of commensals and bacteria previously associated with antitumor effects, including Escherichia coli, Enterococcus faecium, Bifidobacterium longum, Bacteroides fragilis, and Enterococcus hirae...
July 7, 2017: Experimental Cell Research
https://www.readbyqxmd.com/read/28689812/ibmx-protects-human-proximal-tubular-epithelial-cells-from-hypoxic-stress-through-suppressing-hypoxia-inducible-factor-1%C3%AE-expression
#13
Arif Ul Hasan, Wararat Kittikulsuth, Fuminori Yamaguchi, Tuba Musarrat Ansary, Asadur Rahman, Yuki Shibayama, Daisuke Nakano, Hirofumi Hitomi, Masaaki Tokuda, Akira Nishiyama
Hypoxia predisposes renal fibrosis. This study was conducted to identify novel approaches to ameliorate the pathogenic effect of hypoxia. Using human proximal tubular epithelial cells we showed that a pan-phosphodiesterase (PDE) inhibitor, 3-isobutyl-1-methylxanthine (IBMX) dose and time dependently downregulated hypoxia-inducible factor 1α (HIF-1α) mRNA expression, which was further augmented by addition of a transcriptional inhibitor, actinomycin D. IBMX also increased the cellular cyclic adenosine monophosphate (cAMP) level...
July 6, 2017: Experimental Cell Research
https://www.readbyqxmd.com/read/28689811/ampk-activation-ameliorates-d-galn-lps-induced-acute-liver-failure-by-upregulating-foxo3a-to-induce-autophagy
#14
Yan-Min Liu, Jun Lv, Qing-Lei Zeng, Shen Shen, Ji-Yuan Xing, Ying-Ying Zhang, Zhi-Hao Zhang, Zu-Jiang Yu
BACKGROUND AND AIM: Acute liver failure (ALF) is an uncommon but serious disease still carrying a high mortality. This study aimed to investigate the mechanism of AMPK on D-GalN/LPS-induced ALF. METHODS: In this study, we utilized intraperitoneal injection of D-GalN/LPS to induce ALF model, and analyzed the expression of AMPK, inflammatory cytokines (TNF-α, IL-1β and IL-6), Foxo3A and autophagy-related genes (Atg-5, Beclin-1, Atg-7) by real-time quantitative polymerase chain reaction (RT-PCR) in liver tissue...
July 6, 2017: Experimental Cell Research
https://www.readbyqxmd.com/read/28689810/lincrna-p21-knockdown-enhances-radiosensitivity-of-hypoxic-tumor-cells-by-reducing-autophagy-through-hif-1-akt-mtor-p70s6k-pathway
#15
Yueming Shen, Yingying Liu, Ting Sun, Wei Yang
Hypoxic conditions are common in solid tumors and have a significant effect on tumor progression, therapeutic and prognosis. Long noncoding RNAs (lncRNAs) are longer than 200 nucleotides and cannot be translated into proteins, which play important roles in some diseases including cancer. Although previous analysis have showed that long intergenic non-coding RNA (lincRNA)-p21 is hypoxia-responsive and functions as a new regulator of cell cycle, apoptosis and warburg effect in cervical cancer, its biological roles in hypoxic hepatoma and glioma are unknown...
July 6, 2017: Experimental Cell Research
https://www.readbyqxmd.com/read/28689015/the-laminin-derived-peptide-c16-regulates-gpnmb-expression-and-function-in-breast-cancer
#16
Basilio Smuczek, Emerson de S Santos, Adriane S Siqueira, Joao J V Pinheiro, Vanessa M Freitas, Ruy G Jaeger
Breast cancer is an important public health problem, and its progression may be related to the extracellular matrix (ECM), which acts as a structural scaffold and instruction source for neoplastic cells. Laminins are ECM proteins regulating tumor biology. The laminin-derived peptide C16 regulates different properties of tumor cells. Here we analyzed C16-induced differential gene expression in MDA-MB-231 breast cancer cells. MCF-10A normal-like breast cells served as control. Among different cancer-related genes, C16 induced overexpression of GPNMB...
July 5, 2017: Experimental Cell Research
https://www.readbyqxmd.com/read/28684116/cd147-induced-cell-proliferation-is-associated-with-smad4-signal-inhibition
#17
Hui Qin, Azhar Rasul, Xin Li, Muqaddas Masood, Guang Yang, Na Wang, Wei Wei, Xi He, Nobumoto Watanabe, Jiang Li, Xiaomeng Li
CD147 is a multifunctional trans-membrane glycoprotein, which is highly expressed in many cancers. However, the mechanism by which CD147 modulates cell proliferation is not fully understood. The aim of this study is to investigate the role of CD147 in cell proliferation associated with the TGF-β/Smad4 signaling pathway. Here, we used cell viability and clone formation assays in LNCaP prostate cancer cells to demonstrate that CD147 promotes cell proliferation. The luciferase assay and western blotting show that silencing CD147 using shRNA enhances transcription and expression of p21(WAF1)...
July 3, 2017: Experimental Cell Research
https://www.readbyqxmd.com/read/28684115/enhanced-expression-of-caveolin-1-possesses-diagnostic-and-prognostic-value-and-promotes-cell-migration-invasion-and-sunitinib-resistance-in-the-clear-cell-renal-cell-carcinoma
#18
HaiLong Ruan, Xiang Li, HongMei Yang, ZhengShuai Song, JunWei Tong, Qi Cao, KeShan Wang, Wen Xiao, HaiBin Xiao, XuanYu Chen, GuangHua Xu, Lin Bao, ZhiYong Xiong, ChangFei Yuan, Lei Liu, Yan Qu, WenJun Hu, YaoYing Gao, ZeYuan Ru, Ke Chen, XiaoPing Zhang
Caveolin-1 (CAV1) has been identified to be up-regulated in many cancers, including clear cell renal cell carcinoma (ccRCC). However, its potential function is still unclear in ccRCC. In this study, we demonstrated that CAV1 was frequently overexpressed in renal cell carcinoma tissues and cells, and was significantly associated with various clinicopathological parameters. In addition, high CAV1 expression was associated with poor disease-free survival (DFS) rate and could serve as a useful diagnostic indicator in ccRCC patients with different clinicopathological stages...
July 3, 2017: Experimental Cell Research
https://www.readbyqxmd.com/read/28684114/ectopic-expression-of-cited2-prior-to-reprogramming-promotes-and-homogenises-the-conversion-of-somatic-cells-into-induced-pluripotent-stem-cells
#19
João Charneca, Ana Catarina Matias, Ana Luisa Escapa, Catarina Fernandes, André Alves, João M A Santos, Rita Nascimento, José Bragança
Cited2 plays crucial roles in mouse embryonic stem cells self-renewal, the initiation of the somatic reprogramming process into induced pluripotent stem cells (iPSC) and the suppression of cell senescence. Here, we investigated the potential of CITED2 expression in combination with the Oct4, Sox2, Klf4 and c-Myc factors for reprogramming of primary mouse embryonic fibroblasts (MEF) at passage 2 and 4. The ectopic CITED2 expression in primary MEF prior to the onset of the reprogramming process, generated iPSC with less variability in the expression of endogenous pluripotency-related genes...
July 3, 2017: Experimental Cell Research
https://www.readbyqxmd.com/read/28684113/sericin-improves-heart-and-liver-mitochondrial-architecture-in-hypercholesterolaemic-rats-and-maintains-pancreatic-and-adrenal-cell-biosynthesis
#20
Sumate Ampawong, Duangnate Isarangkul, Pornanong Aramwit
Hypercholesterolaemia is well known to be associated with mitochondrial dysfunction, subsequently leading to multiple organ failure. Similar to other natural products, sericin is a candidate for adjunctive therapy in hyperlipidaemic conditions. However, the cholesterol-lowering mechanisms of sericin are multifactorial and controversial. Here, a high-cholesterol-fed rat model with or without sericin treatment was established using a dosage of 1,000mg/kg/day for 30 days. Blood lipid profiles, oxidative stress markers (superoxide dismutase, SOD; malondialdehyde, MDA; nuclear factor erythroid 2-related factor, Nrf-2), dysmorphic mitochondria in relation to fission (dynamin-related protein-1; Drp-1) and fusion (guanosine triphosphatase mutated in dominant optic atrophy; OPA-1) markers and biosynthetic markers (aquaporin, AQP-1; tubulin-4β, Tb4B) in the pancreas and adrenal gland were evaluated...
July 3, 2017: Experimental Cell Research
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