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https://www.readbyqxmd.com/read/28637319/matrix-metalloproteinases-their-functional-role-in-lung-cancer
#1
Neha Merchant, Ganji Purnachandra Nagaraju, Balney Rajitha, Saipriya Lammata, Kishore Kumar Jella, Zachary S Buchwald, Sajani S Lakka, Arif N Ali
Lung malignancy is the foremost cause of cancer-related deaths globally and is frequently related to long-term tobacco smoking. Recent studies reveal that the expression of matrix metalloproteinases (MMPs) is extremely high in lung tumors compared to non-malignant lung tissue. MMPs are zinc-dependent proteases and are involved in the degradation of extracellular matrix (ECM). Several investigations have shown that MMPs manipulate the activity of non-ECM molecules, including cytokines, growth factors and receptors which control the tumor microenvironment...
June 16, 2017: Carcinogenesis
https://www.readbyqxmd.com/read/28637240/tfeb-activation-restores-migration-ability-to-tsc1-deficient-adult-neural-stem-progenitor-cells
#2
Alessandro Magini, Alice Polchi, Danila Di Meo, Giuseppina Mariucci, Krizia Sagini, Federico De Marco, Tommaso Cassano, Stefano Giovagnoli, Diego Dolcetta, Carla Emiliani
Tuberous sclerosis complex (TSC) is an autosomal dominant genetic disorder caused by mutations in either of two genes, TSC1 or TSC2, resulting in the constitutive activation of the mammalian target of rapamycin complex 1 (mTORC1). mTOR inhibitors are now considered the treatment of choice for TSC disease. A major pathological feature of TSC is the development of subependymal giant cell astrocytomas (SEGAs) in the brain. Nowadays, it is thought that SEGAs could be a consequence of aberrant aggregation and migration of neural stem/progenitor cells (NSPCs)...
June 14, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/28637025/runx3-regulates-hepatocellular-carcinoma-cell-metastasis-via-targeting-mir-186-e-cadherin-emt-pathway
#3
Yuli Gou, Fangbing Zhai, Liang Zhang, Lan Cui
Runt-related transcription factor 3 (RUNX3) has been reported as a tumor suppressor in some kinds of cancers. In the present study, hepatocellular carcinoma (HCC) microarray analysis showed that RUNX3 expression was significantly lower in HCC tissues compared with that in adjacent non-tumor tissues, and was negatively associated with metastasis and TNM stage. RUNX3 was an independently prognostic factor for 5-year overall and disease-free patient survival. Mechanically, RUNX3 repressed metastasis and invasion of HCC, and increased E-cadherin expression...
June 9, 2017: Oncotarget
https://www.readbyqxmd.com/read/28637008/cytotoxic-profiling-of-artesunic-and-betulinic-acids-and-their-synthetic-hybrid-compound-on-neurons-and-gliomas
#4
Annemarie Ackermann, Aysun Çapcı Karagöz, Ali Ghoochani, Michael Buchfelder, Ilker Eyüpoglu, Svetlana B Tsogoeva, Nicolai Savaskan
Gliomas are brain-born tumors with devastating impact on their brain microenvironment. Novel approaches employ multiple combinations of chemical compounds in synthetic hybrid molecules to target malignant tumors. Here, we report on the chemical hybridization approach exemplified by artesunic acid (ARTA) and naturally occurring triterpene betulinic acid (BETA). Artemisinin derived semisynthetic compound artesunic acid (ARTA) and naturally occurring triterpene BETA were used to synthetically couple to the hybrid compound termed 212A...
June 7, 2017: Oncotarget
https://www.readbyqxmd.com/read/28637006/the-effect-of-ca125-on-metastasis-of-ovarian-cancer-old-marker-new-function
#5
Qin Yuan, Jiayin Song, Weiwei Yang, Hongyan Wang, Qianyu Huo, Jie Yang, Xiaoxu Yu, Yunde Liu, Chen Xu, Huijing Bao
CA125 has been used extensively to screen for neoplasms, especially in ovarian cancer. The serum CA125 level can be used as a better prognosis evaluation and it may dynamic monitoring the disease progression. We explored the effect of CA125 on ovarian cancer cell migration and its underlying mechanism. Transwell assays showed that exposure to 0.2 μg/ml or 0.4 μg/ml CA125 for 48 h increased migration of A2780 and OVCAR-3 ovarian cancer cells. This effect of CA125 was blocked addition of 200 ng/ml DKK-1, a Wnt pathway inhibitor...
June 7, 2017: Oncotarget
https://www.readbyqxmd.com/read/28637005/cxcl13-is-androgen-responsive-and-involved-in-androgen-induced-prostate-cancer-cell-migration-and-invasion
#6
Long Fan, Qingyi Zhu, Li Liu, Cuicui Zhu, Haojie Huang, Shan Lu, Ping Liu
Androgen receptor (AR) is a key transcription factor playing a critical role in prostate cancer (PCa) initiation and progression. However, the molecular mechanisms of AR action in prostate cancer are not very clear. CXCL13, known as B cell attracting chemokine1 (BCA-1), is a member of CXC chemokine family and relevant to cancer metastasis. This study shows that CXCL13 is an androgen-responsive gene and involved in AR-induced PCa cell migration and invasion. In clinical specimens, expression of CXCL13 in PCa tissues is markedly higher than that in adjacent normal tissues...
June 7, 2017: Oncotarget
https://www.readbyqxmd.com/read/28636988/role-of-the-jak2-stat3-signaling-pathway-in-the-pathogenesis-of-type-2-diabetes-mellitus-with-macrovascular-complications
#7
Mengxue Yang, Mei Tian, Xuan Zhang, Jie Xu, Bo Yang, Jie Yu, Fengping Li, Ya Li, Sicheng Li, Xianwen Li
This study investigated the role of the JAK2/STAT3/SOCS pathway in type 2 diabetes mellitus (T2DM) and macrovascular complications (DV) (T2DM+DV) conditions. Human umbilical vein endothelial cells (HUVECs) were co-cultured with human monocytes (THP-1) and exposed to peripheral blood sera from 30 T2DM patients, 30 patients with T2DM+DV and 30 healthy controls; the groups were divided into the control, T2DM, DV, T2DM+AG490 and DV+AG490 groups. Chemotaxis of treated HUVECs toward THP-1 cells was assessed using Transwell migration...
June 16, 2017: Oncotarget
https://www.readbyqxmd.com/read/28636946/ptbp2-controls-an-alternative-splicing-network-required-for-cell-communication-during-spermatogenesis
#8
Molly M Hannigan, Leah L Zagore, Donny D Licatalosi
Alternative splicing has essential roles in development. Remarkably, spermatogenic cells express more alternatively spliced RNAs compared to most whole tissues; however, regulation of these RNAs remains unclear. Here, we characterize the alternative splicing landscape during spermatogenesis and reveal an essential function for the RNA-binding protein Ptbp2 in this highly regulated developmental program. We found that Ptbp2 controls a network of genes involved in cell adhesion, migration, and polarity, suggesting that splicing regulation by Ptbp2 is critical for germ cell communication with Sertoli cells (multifunctional somatic cells necessary for spermatogenesis)...
June 20, 2017: Cell Reports
https://www.readbyqxmd.com/read/28636882/foxn1-italian-founder-mutation-in-indian-family-implications-in-prenatal-diagnosis
#9
Akella Radha Rama Devi, Nagesh Narayan Panday, Shaik Mohammad Naushad
The Forkhead box N1 (FOXN1) is a transcriptional factor regulating the development, differentiation and function of thymic epithelial cells; maintaining T-lineage progenitors in bone marrow; promoting terminal differentiation of epithelial cells of hair follicles. Mutation in FOXN1 was reported to cause a rare disorder characterized by rudimentary thymus gland, T-cell immunodeficiency, congenital alopecia and nail dystrophy within an Italian community. This is the first report of FOXN1 p.R255X mutation from India, outside this endogamous Italian community...
June 18, 2017: Gene
https://www.readbyqxmd.com/read/28636767/aberrant-expression-of-kallikrein-related-peptidase-7-is-correlated-to-human-melanoma-aggressiveness-by-stimulating-cell-migration-and-invasion
#10
Tiphaine Delaunay, Lydia Deschamps, Meriem Haddada, Francine Walker, Antoninus Soosaipillai, Feryel Soualmia, Chahrazade El Amri, Eleftherios P Diamandis, Maria Brattsand, Viktor Magdolen, Dalila Darmoul
Members of the tissue kallikrein-related peptidase (KLK) family not only regulate several important physiological functions, but aberrant expression has also been associated with various malignancies. Clinically, KLKs have been suggested as promising biomarkers for diagnosis and prognosis in many types of cancer. As of yet, expression of KLKs and their role in skin cancers are, however, poorly addressed. Malignant melanoma is an aggressive disease associated with poor prognosis. Hence, diagnostic biomarkers to monitor melanoma progression are needed...
June 21, 2017: Molecular Oncology
https://www.readbyqxmd.com/read/28636556/long-non-coding-rna-ube2cp3-promotes-tumor-metastasis-by-inducing-epithelial-mesenchymal-transition-in-hepatocellular-carcinoma
#11
Shun-Wang Cao, Jin-Lan Huang, Jing Chen, Yan-Wei Hu, Xiu-Mei Hu, Ting-Yu Ren, Shi-Hao Zheng, Jin-Duan Lin, Jing Tang, Lei Zheng, Qian Wang
Hepatocellular carcinoma (HCC) is a highly aggressive, solid malignancy that has a poor prognosis. Long non-coding RNAs (lncRNAs) have been found to be dysregulated in various cancers, including HCC. However, the molecular mechanism involving lncRNAs in HCC remains largely unknown. In this study, lncRNAs differentially expressed between HCC and corresponding non-cancerous tissue were identified by microarray analysis. A specific differentially expressed lncRNA UBE2CP3 (ubiquitin conjugating enzyme E2 C pseudogene 3) was identified...
June 16, 2017: Oncotarget
https://www.readbyqxmd.com/read/28636547/hnscc-subverts-pbmcs-to-secrete-soluble-products-that-promote-tumor-cell-proliferation
#12
Marcell Costa de Medeiros, Rajat Banerjee, Min Liu, Giovana Anovazzi, Nisha J D'Silva, Carlos Rossa Junior
The immune system detects shifts from homeostasis and eliminates altered cells. However, neoplastic cells can modulate the host response to escape immunosurveillance thereby allowing tumor progression. Head and neck squamous cell carcinoma (HNSCC) is one of the most immunosuppressive cancers but its role in co-opting the immune system to actively promote tumor growth has not been investigated. In this study, we investigated the influence of soluble factors secreted by HNSCC and non-neoplastic epithelial cells on proliferation, apoptosis, activation, cytokine gene expression and phenotypic polarization of immune cells of healthy donors...
June 15, 2017: Oncotarget
https://www.readbyqxmd.com/read/28636545/reversal-effect-of-jagged1-signaling-inhibition-on-ccl4-induced-hepatic-fibrosis-in-rats
#13
Guiju Tang, Zhihong Weng, Jun Song, Yixiong Chen
The role of the Notch ligand Jagged1 in hepatic fibrosis remains to be elucidated. In the current study, we investigated the role of Jagged1 in the activation of hepatic stellate cells (HSCs) and development of hepatic fibrosis in rats. In vitro, Jagged1 in HSCs was downregulated and upregulated by Jagged1 siRNA and pcDNA3.1 Jagged1, respectively. The levels of epithelial-mesenchymal transition (EMT) markers and HSC activation markers were assessed using western blot analysis. The proliferation and migration capacity of HSCs were assessed using 5-ethynyl-2'-deoxyuridine (EdU) incorporation and Transwell migration assays...
June 15, 2017: Oncotarget
https://www.readbyqxmd.com/read/28636539/chromatin-remodeling-protein-morc2-promotes-breast-cancer-invasion-and-metastasis-through-a-prd-domain-mediated-interaction-with-ctnnd1
#14
Xiao-Hong Liao, Ye Zhang, Wen-Jie Dong, Zhi-Min Shao, Da-Qiang Li
MORC family CW-type zinc finger 2 (MORC2) is a newly identified chromatin remodeling protein with emerging roles in the regulation of DNA damage response and gene transcription, but its mechanistic role in breast cancer development and progression remains unexplored. Here, we show that MORC2 promoted breast cancer invasion and metastasis and these effects depended on a proline-rich domain (PRD) within its carboxy-terminal region spanning residues 601-734. Induced expression of wild-type MORC2 did not significantly affect cell proliferation and cell-cycle progression, but promoted breast cancer cell migration and invasion in vitro and metastatic lung colonization in vivo...
June 16, 2017: Oncotarget
https://www.readbyqxmd.com/read/28636531/nedd9-an-independent-good-prognostic-factor-in-intermediaterisk-acute-myeloid-leukemia-patients
#15
Victor Pallarès, Montserrat Hoyos, M Carmen Chillón, Eva Barragán, M Isabel Prieto Conde, Marta Llop, María Virtudes Céspedes, Josep F Nomdedeu, Salut Brunet, Miguel Ángel Sanz, Marcos González-Díaz, Jorge Sierra, Isolda Casanova, Ramon Mangues
Intermediate-risk acute myeloid leukemia (IR-AML) is the largest subgroup of AML patients and is highly heterogeneous. Whereas adverse and favourable risk patients have well-established treatment protocols, IR-AML patients have not. It is, therefore, crucial to find novel factors that stratify this subgroup to implement risk-adapted strategies. The CAS (Crk-associated substrate) adaptor protein family regulates cell proliferation, survival, migration and adhesion. Despite its association with metastatic dissemination and prognosis of different solid tumors, the role of these proteins in hematological malignancies has been scarcely evaluated...
June 16, 2017: Oncotarget
https://www.readbyqxmd.com/read/28636424/fluid-shear-stress-regulates-hepg2-cell-migration-though-time-dependent-integrin-signaling-cascade
#16
Hongchi Yu, Yang Shen, Jingsi Jin, Yingying Zhang, Tang Feng, Xiaoheng Liu
Hepatocellular carcinoma (HCC) is a subtype of malignant liver cancer with poor prognosis and limited treatment options. It is noteworthy that mechanical forces in tumor microenvironment play a pivotal role in mediating the behaviors and functions of tumor cells. As an instrumental type of mechanical forces in vivo, fluid shear stress (FSS) has been reported having potent physiologic and pathologic effects on cancer progression. However, the time-dependent mechanochemical transduction in HCC induced by FSS remains unclear...
June 21, 2017: Cell Adhesion & Migration
https://www.readbyqxmd.com/read/28636327/maldi-ms-guided-liquid-microjunction-extraction-for-ce-esi-ms-analysis-of-single-pancreatic-islet-cells
#17
Troy J Comi, Monika A Makurath, Marina C Philip, Stanislav S Rubakhin, Jonathan V Sweedler
The ability to characterize chemical heterogeneity in biological structures is essential to understanding cellular level function in both healthy and diseased states, but these variations remain difficult to assess using a single analytical technique. While mass spectrometry (MS) provides sufficient sensitivity to measure many analytes from volume-limited samples, each type of mass spectrometric analysis uncovers only a portion of the complete chemical profile of a single cell. Matrix-assisted laser desorp-tion/ionization (MALDI) MS and capillary electrophoresis electrospray ionization (CE-ESI)-MS are complementary analytical platforms frequently utilized for single cell analysis...
June 21, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28636203/directional-matrix-nanotopography-with-varied-sizes-for-engineering-wound-healing
#18
Jangho Kim, Won-Gyu Bae, Yeon Ju Kim, Hoon Seonwoo, Han-Wool Choung, Kyoung-Je Jang, Sunho Park, Bog Hee Kim, Hong-Nam Kim, Kyoung Soon Choi, Myung-Sun Kim, Pill-Hoon Choung, Yun-Hoon Choung, Jong Hoon Chung
Topographic features play a crucial role in the regulation of physiologically relevant cell and tissue functions. Here, an analysis of feature-size-dependent cell-nanoarchitecture interactions is reported using an array of scaffolds in the form of uniformly spaced ridge/groove structures for engineering wound healing. The ridge and groove widths of nanopatterns are varied from 300 to 800 nm and the nanotopography features are classified into three size ranges: dense (300-400 nm), intermediate (500-600 nm), and sparse (700-800 nm)...
June 21, 2017: Advanced Healthcare Materials
https://www.readbyqxmd.com/read/28636132/trpc1-and-trpc3-dependent-ca-2-signaling-in-mouse-cortical-astrocytes-affects-injury-evoked-astrogliosis-in-vivo
#19
Thabet Belkacemi, Alexander Niermann, Laura Hofmann, Ulrich Wissenbach, Lutz Birnbaumer, Petra Leidinger, Christina Backes, Eckart Meese, Andreas Keller, Xianshu Bai, Anja Scheller, Frank Kirchhoff, Stephan E Philipp, Petra Weissgerber, Veit Flockerzi, Andreas Beck
Following brain injury astrocytes change into a reactive state, proliferate and grow into the site of lesion, a process called astrogliosis, initiated and regulated by changes in cytoplasmic Ca(2+) . Transient receptor potential canonical (TRPC) channels may contribute to Ca(2+) influx but their presence and possible function in astrocytes is not known. By RT-PCR and RNA sequencing we identified transcripts of Trpc1, Trpc2, Trpc3, and Trpc4 in FACS-sorted glutamate aspartate transporter (GLAST)-positive cultured mouse cortical astrocytes and subcloned full-length Trpc1 and Trpc3 cDNAs from these cells...
June 21, 2017: Glia
https://www.readbyqxmd.com/read/28636101/knockdown-of-lncrna-meg3-inhibits-viability-migration-and-invasion-and-promotes-apoptosis-by-sponging-mir-127-in-osteosarcoma-cell
#20
Yang Wang, Daliang Kong
Osteosarcoma (OS) is one of the most common bone malignancies and occurs almost exclusively in children and adolescents. This study aimed to explore the role of lncRNA maternally expressed gene 3 (MEG3) in OS cells growth and metastasis, and to uncover the possible underlying mechanism. In this study, the expressions of MEG3 in five OS cell lines (MG63, OS-732, SaOS, G292, and 143B) and in a human osteoblast cell line hFOB1.19 were measured by qRT-PCR analysis. The expressions of MEG3, miR-127 and ZEB1 in OS-732 cells were overexpressed or suppressed by transfection...
June 21, 2017: Journal of Cellular Biochemistry
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