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Cell Biochemistry and Function

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https://read.qxmd.com/read/30773676/upregulated-lncrna-ccat1-promotes-hepatocellular-carcinoma-progression-by-functioning-as-mir-30c-2-3p-sponge
#1
Jie Zhang, Min Cai, Dawei Jiang, Liu Xu
Hepatocellular carcinoma (HCC) is the second leading cause of cancer-related death over the world. It is well studied that long noncoding RNA colon cancer-associated transcript-1 (CCAT1) played important roles in variety of cancers promoting cell proliferation and metastasis by acting as a competing endogenous RNA (ceRNA) of microRNAs. However, whether CCAT1 could regulate HCC by serving as a ceRNA of microRNA remains to be revealed. In this study, we demonstrated that CCAT1 was highly expressed in HCC tissues and remarkably associated with metastasis...
February 18, 2019: Cell Biochemistry and Function
https://read.qxmd.com/read/30773659/an-in-vitro-study-of-scarring-formation-mediated-by-human-tenon-fibroblasts-effect-of-y-27632-a-rho-kinase-inhibitor
#2
Diah Gemala Ibrahim, Ji-Ae Ko, Wakana Iwata, Hideaki Okumichi, Yoshiaki Kiuchi
Scar formation is the most common cause for failure of glaucoma filtration surgery because of increased fibroblast proliferation and activation. We have now examined the effect of Y-27632, a Rho-associated protein kinase (ROCK) inhibitor, on postsurgical scarring formation in human Tenon fibroblasts (HTFs). Collagen gel contraction assay was used to compare contractility activity of Y-27632 with several antiglaucoma drugs. Immunofluorescence and western blotting were used to examine expression of scar formation-related factors...
February 18, 2019: Cell Biochemistry and Function
https://read.qxmd.com/read/30773658/u2af65-enhances-milk-synthesis-and-growth-of-bovine-mammary-epithelial-cells-by-positively-regulating-the-mtor-srebp-1c-signalling-pathway
#3
Yanbo Yu, Zhen Zhen, Hao Qi, Xiaohan Yuan, Xuejun Gao, Minghui Zhang
U2 snRNP auxiliary factor 65 kDa (U2AF65) is a splicing factor that promotes prespliceosome assembly. The function of U2AF65 in alternative splicing has been identified; however, the essential physiological role of U2AF65 remains poorly understood. In this study, we investigated the regulatory role of U2AF65 in milk synthesis and growth of bovine mammary epithelial cells (BMECs). Our results showed that U2AF65 localizes in the nucleus. Treatment with amino acids (Met and Leu) and hormones (prolactin and β-estradiol) upregulated the expression of U2AF65 in these cells...
February 18, 2019: Cell Biochemistry and Function
https://read.qxmd.com/read/30773657/proteomic-analysis-of-the-effects-of-cell-culture-density-on-the-metastasis-of-breast-cancer-cells
#4
Man-Lan Guo, Mi-Xin Sun, Jin-Zhi Lan, Li-Sha Yan, Jing-Juan Zhang, Xiao-Xia Hu, Shu Xu, Da-Hua Mao, Hai-Song Yang, Ya-Wei Liu, Teng-Xiang Chen
Cancer cell progression and proliferation increase cell density, resulting in changes to the tumour site, including the microenvironment. What is not known is if increased cell density influences the aggressiveness of cancer cells, especially their proliferation, migration, and invasion capabilities. In this study, we found that dense cell culture enhances the aggressiveness of the metastatic cancer cell lines, 4T1 and ZR-75-30, by increasing their proliferation, migration, and invasion capabilities. However, a less metastatic cell line, MCF-7, did not show an increase in aggressiveness, following dense cell culture conditions...
February 18, 2019: Cell Biochemistry and Function
https://read.qxmd.com/read/30773655/microrna-224-enhances-the-osteoblastic-differentiation-of-hmscs-via-rac1
#5
Qing Cai, Peng Zheng, Fuzhe Ma, Huiyan Zhang, Zuntai Li, Qiyue Fu, Chunyu Han, Yingying Sun
Osteogenesis is the differentiation of mesenchymal stem cells (MSCs) into osteoblasts. MicroRNAs (miRNAs) are short noncoding RNAs that target specific genes to mediate translational activities. In this study, we investigated how miR-224 regulates the osteoblastic differentiation of human MSCs (hMSCs) as well as the underlying mechanism. The results revealed the upregulation of miR-224 during hMSC differentiation. In vitro experiments showed that the downregulation of miR-224 suppressed the differentiation of hMSCs into osteoblasts...
February 18, 2019: Cell Biochemistry and Function
https://read.qxmd.com/read/30701573/anti-%C3%AE-2gpi-%C3%AE-2gpi-induces-human-neutrophils-to-generate-nets-by-relying-on-ros
#6
Yanqiu You, Yanhong Liu, Fujun Li, Fengyun Mu, Caijun Zha
Neutrophils participate in the regulation of pathogens by phagocytosis as well as by generating neutrophil extracellular traps (NETs). Antiphospholipid antibodies, particularly those targeting beta-2-glycoprotein I (β2GPI), stimulate monocytes, platelets, and endothelial cells with prothrombotic participation. This study aimed to explore NET generation in response to anti-β2GPI/β2GPI. A series of experiments involving the separation of primary human leukocytes, NETosis quantification using propidium iodide, exploration of NETosis by fluorescence microscopy, western blotting, examination of free Zn2+ using FluoZin-3, and reactive oxygen species (ROS) examination with dihydrorhodamine 123 were performed in this study...
January 30, 2019: Cell Biochemistry and Function
https://read.qxmd.com/read/30604499/the-protac-technology-in-drug-development
#7
REVIEW
Yutian Zou, Danhui Ma, Yinyin Wang
Currently, a new technology termed PROTAC, proteolysis targeting chimera, has been developed for inducing the protein degradation by a targeting molecule. This technology takes advantage of a moiety of targeted protein and a moiety of recognizing E3 ubiquitin ligase and produces a hybrid molecule to specifically knock down a targeted protein. During the first decade, three pedigreed groups worked on the development of this technology. To date, this technology has been extended by different groups, aiming to develop new drugs against different diseases including cancers...
January 2, 2019: Cell Biochemistry and Function
https://read.qxmd.com/read/30575058/gcnt2-induces-epithelial-mesenchymal-transition-and-promotes-migration-and-invasion-in-esophageal-squamous-cell-carcinoma-cells
#8
Fei Peng, Qi He, Chao Cheng, Jingxuan Pan
Esophageal squamous cell carcinoma (ESCC) is one of the most common cancers in the world. The prognosis of patients with ESCC is dismal with a 5-year survival of about 15%. Thus, identification of novel diagnostic and prognostic biomarkers for ESCC patients is urgently needed. Here, we found that manipulation of I-branching N-acetylglucosaminyltransferase (GCNT2) expression had no effect on cell proliferation. Notably, overexpression of GCNT2 promoted the migration and invasion, and this effect was associated with increased expression of N-cadherin and vimentin and decreased expression of E-cadherin in KYSE30 and EC9706 cells...
December 21, 2018: Cell Biochemistry and Function
https://read.qxmd.com/read/30520054/metformin-inhibits-pro-inflammatory-responses-via-targeting-nuclear-factor-%C3%AE%C2%BAb-in-hacat-cells
#9
Wei Ba, Yuanyuan Xu, Guang Yin, Jingrun Yang, Rui Wang, Sumin Chi, Yinyin Wang, Chengxin Li
Psoriasis is a prevalent, chronic inflammatory skin disease that arises from rapid and excessive growth of keratinocytes induced by abnormal inflammatory responses. Metformin is the first-line drug in type 2 diabetes and has been proven to possess significant anti-inflammatory effects in various diseases. In the present study, we examined the role of metformin in nuclear factor kappa B (NF-κB)-mediated inflammatory responses in HaCaT cells, a cell line for the keratinocyte. Our results demonstrated that metformin significantly decreased the mRNA and protein levels of tumour necrosis factor-α (TNFα), interleukin (IL)-6, IL-8, and IL-1β induced by TNFα...
December 5, 2018: Cell Biochemistry and Function
https://read.qxmd.com/read/30499136/long-non-coding-rna-runx1-it1-plays-a-tumour-suppressive-role-in-colorectal-cancer-by-inhibiting-cell-proliferation-and-migration
#10
Jinxin Shi, Xi Zhong, Yongxi Song, Zhonghua Wu, Peng Gao, Junhua Zhao, Jingxu Sun, Jiajun Wang, Jingjing Liu, Zhenning Wang
Long non-coding RNAs (lncRNAs) have been demonstrated to be involved in the progression of various cancers. In this study, we aim to investigate the role of lncRNA RUNX1-IT1 in the development of colorectal cancer (CRC). The expression levels of lncRNA RUNX1-IT1 were measured using quantitative real-time Polymerase Chain Reaction(qRT-PCR). CCK8 proliferation assay, transwell assay, and flow cytometry were performed to evaluate the effect of lncRNA RUNX1-IT1 on CRC cell proliferation, migration, and apoptosis...
November 30, 2018: Cell Biochemistry and Function
https://read.qxmd.com/read/30484863/the-histone-deacetylase-inhibitor-panobinostat-exerts-anticancer-effects-on-esophageal-squamous-cell-carcinoma-cells-by-inducing-cell-cycle-arrest
#11
Yin-Wei Cheng, Lian-Di Liao, Qian Yang, Yang Chen, Ping-Juan Nie, Xiao-Jun Zhang, Jian-Jun Xie, Bao-En Shan, Lian-Mei Zhao, Li-Yan Xu, En-Min Li
Esophageal squamous cell carcinoma (ESCC) is a common malignancy without effective therapy. Histone deacetylase inhibitors (HDACIs) have been demonstrated as an emerging class of anticancer drugs for a range of haematological and solid tumours. However, the effect of HDACIs has not yet been investigated on ESCC cells. In this study, HDACIs were initially considered to have anticancer activity for ESCC, due to the high expression of HDAC genes in ESCC cell lines by analysing expression data of 27 ESCC cell lines from the Broad-Novartis Cancer Cell Line Encyclopedia...
November 28, 2018: Cell Biochemistry and Function
https://read.qxmd.com/read/30468518/comparison-of-rheumatoid-arthritis-ra-and-osteoarthritis-oa-based-on-microarray-profiles-of-human-joint-fibroblast-like-synoviocytes
#12
Peian Cai, Tongmeng Jiang, Bo Li, Xiong Qin, Zhenhui Lu, Yiguan Le, Chong Shen, Yifeng Yang, Li Zheng, Jinmin Zhao
The purpose of the present study was to investigate the underlying molecular mechanism of osteoarthritis (OA) and rheumatoid arthritis (RA) based on microarray profiles. Three human joint fibroblast-like synoviocytes (FLSs) microarray profiles including 26 OA samples, 33 RA samples, and 20 healthy control (HC) samples were downloaded from the GEO database. Differentially expressed genes (DEGs) between OA and HC (DEGsOA) and RA and HC (DEGsRA) were identified. Co-expressed and specific genes were analysed between DEGsOA and DEGsRA...
November 23, 2018: Cell Biochemistry and Function
https://read.qxmd.com/read/30411386/effects-of-anoxic-exposure-on-the-nuclear-factor-of-activated-t-cell-nfat-transcription-factors-in-the-stress-tolerant-wood-frog
#13
Rasha Al-Attar, Kenneth B Storey
The wood frog, Lithobates sylvaticus (also known as Rana sylvatica), is used for studying natural freeze tolerance. These animals convert 65% to 70% of their total body water into extracellular ice and survive freezing for weeks in winter. Freezing interrupts oxygen delivery to organs; thus, wood frogs limit their ATP usage by depressing their metabolism and redirecting the available energy only to prosurvival processes. Here, we studied the nuclear factor of activated T cell (NFAT) transcription factor family in response to 24-hour anoxia, and 4-hour aerobic recovery in liver and skeletal muscle...
November 8, 2018: Cell Biochemistry and Function
https://read.qxmd.com/read/30411385/role-of-estradiol-and-testosterone-in-ucp1-expression-in-brown-beige-adipocytes
#14
Mika Suzuki, Masaru Murakami, Mitsuyuki Shirai, Osamu Hashimoto, Teruo Kawada, Tohru Matsui, Masayuki Funaba
Activity of brown/beige adipocytes is higher in women than in men. The expression level of uncoupling protein 1 (UCP1) is largely consistent with the thermogenic activity in brown/beige adipocytes. The present study examined the direct effects of sex hormones on Ucp1 expression in brown adipocytes and beige adipocytes, which were differentiated from HB2 brown preadipocytes and 3T3-L1 white preadipocytes, respectively; treatment with estradiol or testosterone was used during the early (days 0-8) or late stage (days 8-12) of brown adipogenesis and beige adipogenesis...
November 8, 2018: Cell Biochemistry and Function
https://read.qxmd.com/read/30411383/lrrk2-impairs-autophagy-by-mediating-phosphorylation-of-leucyl-trna-synthetase
#15
Dong Hwan Ho, Hyejung Kim, Daleum Nam, Hyuna Sim, Janghwan Kim, Hyung Gun Kim, Ilhong Son, Wongi Seol
Leucine-rich repeat kinase 2 (LRRK2) is a causal gene of Parkinson disease. G2019S pathogenic mutation increases its kinase activity. LRRK2 regulates various phenotypes including autophagy, neurite outgrowth, and vesicle trafficking. Leucyl-tRNA synthetase (LRS) attaches leucine to tRNALeu and activates mTORC1. Down-regulation of LRS induces autophagy. We investigated the relationship between LRRK2 and LRS in regulating autophagy and observed interaction between endogenous LRRK2 and LRS proteins and LRS phosphorylation by LRRK2...
November 8, 2018: Cell Biochemistry and Function
https://read.qxmd.com/read/30407643/naif1-suppresses-osteosarcoma-progression-and-is-regulated-by-mir-128
#16
Daliang Kong, Zhe Zhang
Nuclear apoptosis-inducing factor 1 (NAIF1) acts as an oncogene and involves in tumorigenesis in several cancers. However, the expression and mechanism of NAIF1 in osteosarcoma remains unclear. In this study, we demonstrated the downregulation of NAIF1 expression in both osteosarcoma tissues and cell lines. We next explored the potential role of NAIF1 in osteosarcoma cell proliferation and migration. The result showed that overexpression of NAIF1 evidently suppressed the cell proliferation and invasion of osteosarcoma...
November 8, 2018: Cell Biochemistry and Function
https://read.qxmd.com/read/30379332/six1-is-upregulated-in-gastric-cancer-and-regulates-proliferation-and-invasion-by-targeting-the-erk-pathway-and-promoting-epithelial-mesenchymal-transition
#17
Ying Xie, Peng Jin, Xuren Sun, Taiwei Jiao, Yining Zhang, Yue Li, Mingjun Sun
Sine oculis homeobox homologue 1 (SIX1) is a Six class homeobox gene conserved throughout many species. It has been reported to act as an oncogene and is overexpressed in many cancers. However, the function and regulatory mechanism of SIX1 in gastric cancer (GC) remains unclear. In our study, we detected protein levels of SIX1 via immunohistochemistry (IHC) and its proliferation and invasion effects via CCK8 and transwell assays. Additionally, expression of cyclin D1, MMP2, p-ERK, and EMT-related proteins was measured by western blotting...
October 31, 2018: Cell Biochemistry and Function
https://read.qxmd.com/read/30318596/tumorigenic-pvt-1-gene-locus-is-governed-by-mir-2909-rnomics
#18
Sameena Wani, Deepak Kaul
Genomic regulation and functional significance of PVT-1 gene locus, in the MYC-driven cancers, has remained enigmatic ever since its discovery. With the present study, an attempt is made to establish that cellular AATF genome encoded miR-2909 RNomics pathway involving crucial genes coding for KLF4, Deptor, mTORC1, STAT3, and p53 has the inherent capacity to ensure sustained co-amplification of PVT-1 gene locus together with c-Myc gene. Based upon these results, we propose that miR-2909 RNomics pathway may play a crucial role in the regulation of tumorigenic PVT-1 gene locus...
October 14, 2018: Cell Biochemistry and Function
https://read.qxmd.com/read/30284312/two-weeks-of-high-fat-feeding-disturb-lipid-and-cholesterol-molecular-markers
#19
L Magri-Tomaz, L Melbouci, J Mercier, Ya Ou, N Auclair, F S Lira, J-M Lavoie, D H St-Pierre
Metabolic disorders are often associated with liver steatosis and increased plasma cholesterol levels. However, the link between excessive lipid accumulation and impairments in cholesterol metabolism remains uninvestigated in the liver. Short term of high-fat diet (HFD) was previously shown to promote excessive lipid accumulation prior to the development of metabolic disorders. The present study intended to characterize how increases in liver fat alter the expression of several key regulators of hepatic cholesterol metabolism in response to a short-term HFD...
October 2018: Cell Biochemistry and Function
https://read.qxmd.com/read/30264402/suppression-of-abcd2-dysregulates-lipid-metabolism-via-dysregulation-of-mir-141-acsl4-in-human-osteoarthritis
#20
Sujeong Park, Jinjoo Oh, Yong-Il Kim, Seong-Kyu Choe, Churl-Hong Chun, Eun-Jung Jin
Even though increasing evidence indicates the importance of peroxisomal lipid metabolism in regulating biological and pathological events, its involvement in cartilage development has not been well studied. Here, we identified the importance of peroxisomal function, particularly the functional integrity of ABCD2, in the pathogenesis of osteoarthritis (OA). Knockdown of ABCD2 in OA chondrocytes induced the accumulation of very long chain fatty acids (VLCFAs) and apoptotic cell death. Moreover, knockdown of ABCD2 altered profiles of miRNAs that affect the expression level of ACSL4, a known direct regulator of lipid metabolism...
October 2018: Cell Biochemistry and Function
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