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Cell Communication and Signaling: CCS

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https://www.readbyqxmd.com/read/30419921/correction-to-copper-signalling-causes-and-consequences
#1
Julianna Kardos, László Héja, Ágnes Simon, István Jablonkai, Richard Kovács, Katalin Jemnitz
Following publication of the original article [1], the authors reported an error in Table 3. The correct version of Table 3 is shown below:The publishers apologise for this error. The original article [1] has been corrected.
November 12, 2018: Cell Communication and Signaling: CCS
https://www.readbyqxmd.com/read/30409198/perspective-on-nanochannels-as-cellular-mediators-in-different-disease-conditions
#2
REVIEW
Eshna Jash, Peeyush Prasad, Naveen Kumar, Taruna Sharma, Aaron Goldman, Seema Sehrawat
Tunnelling nanotubes (TNTs), also known as membrane nanochannels, are actin-based structures that facilitate cytoplasmic connections for rapid intercellular transfer of signals, organelles and membrane components. These dynamic TNTs can form de novo in animal cells and establish complex intercellular networks between distant cells up to 150 μm apart. Within the last decade, TNTs have been discovered in different cell types including tumor cells, macrophages, monocytes, endothelial cells and T cells. It has also been further elucidated that these nanotubes play a vital role in diseased conditions such as cancer, where TNT formation occurs at a higher pace and is used for rapid intercellular modulation of chemo-resistance...
November 8, 2018: Cell Communication and Signaling: CCS
https://www.readbyqxmd.com/read/30409180/usp17-is-required-for-trafficking-and-oncogenic-signaling-of-mutant-egfr-in-nsclc-cells
#3
Aidan P McCann, Peter Smyth, Francesco Cogo, William J McDaid, Lai Jiang, Jia Lin, Emma Evergren, Roberta E Burden, Sandra Van Schaeybroeck, Christopher J Scott, James F Burrows
BACKGROUND: The deubiquitinase USP17 is overexpressed in NSCLC and has been shown to be required for the growth and motility of EGFR wild-type (WT) NSCLC cells. USP17 is also required for clathrin-mediated endocytosis of EGFR. Here, we examine the impact of USP17 depletion on the growth, as well as EGFR endocytosis and signaling, of EGFR mutant (MT) NSCLC cells. In particular, we examine NSCLC cells harboring an EGFR activating exon 19 deletion (HCC827), or both the L858R activating mutation and the T790M resistance gatekeeper mutation (H1975) which renders them resistant to EGFR tyrosine kinase inhibitors (TKIs)...
November 8, 2018: Cell Communication and Signaling: CCS
https://www.readbyqxmd.com/read/30409165/antagonistic-interaction-between-nodal-and-insulin-modulates-pancreatic-%C3%AE-cell-proliferation-and-survival
#4
Junfeng Li, Zhihong Wang, Liwei Ren, Linling Fan, Wenjuan Liu, Yaojing Jiang, Harry K Lau, Rui Liu, Qinghua Wang
BACKGROUND: Insulin signaling pathway in β-cell is essential to promote β-cells proliferation and survival, while Nodal-ALK7-Smad3 signaling involves β-cells apoptosis. We attempted to address inter-relationship between Nodal and insulin in modulating β-cell proliferation and apoptosis. METHODS: Using INS-1 β-cells and isolated rat islets, we examined the effects of Nodal, insulin, or the two combined on β-cell proliferation and/or apoptosis. RESULTS: The β-cells under high-glucose or palmitate conditions showed significant up-regulation of Nodal expression and activation of its downstream signaling pathway resulted in increased cleaved caspase-3...
November 8, 2018: Cell Communication and Signaling: CCS
https://www.readbyqxmd.com/read/30409162/serotonin-induced-hepatic-steatosis-is-associated-with-modulation-of-autophagy-and-notch-signaling-pathway
#5
Suryakant Niture, Maxwell A Gyamfi, Habib Kedir, Elena Arthur, Habtom Ressom, Gagan Deep, Deepak Kumar
BACKGROUND: Besides its neurotransmitter and vasoconstriction functions, serotonin is an important mediator of numerous biological processes in peripheral tissues including cell proliferation, steatosis, and fibrogenesis. Recent reports indicate that serotonin may promote tumor growth in liver cancer, however, the molecular mechanisms remain elusive. n this study, we investigated the role and molecular signaling mechanisms mediated by serotonin in liver cancer cell survival, drug resistance, and steatosis...
November 8, 2018: Cell Communication and Signaling: CCS
https://www.readbyqxmd.com/read/30404645/tonicity-inversely-modulates-lipocalin-2-lcn2-24p3-ngal-receptor-slc22a17-and-lcn2-expression-via-wnt-%C3%AE-catenin-signaling-in-renal-inner-medullary-collecting-duct-cells-implications-for-cell-fate-and-bacterial-infection
#6
R Betten, B Scharner, S Probst, B Edemir, N A Wolff, C Langelueddecke, W-K Lee, F Thévenod
BACKGROUND: We have previously evidenced apical expression of the 24p3/NGAL/lipocalin-2 receptor (Lcn2-R; SLC22A17) in inner medullary collecting duct (IMCD) cells, which are present in vivo in a hyperosmotic/-tonic environment that activates canonical Wnt/β-catenin signaling. The localization of Lcn2-R in the inner medulla is intriguing considering local bacterial infections trigger toll-like receptor-4 (TLR-4)-mediated secretion of the bacteriostatic Fe3+ -free (apo-)Lcn2. AIM: To determine the effects of osmolarity/tonicity changes, Wnt/β-catenin and TLR-4 activation on Lcn2-R and Lcn2 expression and cell viability in rat primary IMCD and mouse (m)IMCD3 cells...
November 7, 2018: Cell Communication and Signaling: CCS
https://www.readbyqxmd.com/read/30404626/src-inhibition-prevents-p-cadherin-mediated-signaling-and-function-in-basal-like-breast-cancer-cells
#7
Ana Sofia Ribeiro, Ana Rita Nobre, Nuno Mendes, João Almeida, André Filipe Vieira, Bárbara Sousa, Filomena A Carvalho, Joana Monteiro, António Polónia, Martina Fonseca, João Miguel Sanches, Nuno C Santos, Raquel Seruca, Joana Paredes
BACKGROUND: Basal-like breast cancer (BLBC) is a poor prognosis subgroup of triple-negative carcinomas that still lack specific target therapies and accurate biomarkers for treatment selection. P-cadherin is frequently overexpressed in these tumors, promoting cell invasion, stem cell activity and tumorigenesis by the activation of Src-Family kinase (SRC) signaling. Therefore, our aim was to evaluate if the treatment of BLBC cells with dasatinib, the FDA approved SRC inhibitor, would impact on P-cadherin induced tumor aggressive behavior...
November 7, 2018: Cell Communication and Signaling: CCS
https://www.readbyqxmd.com/read/30390666/conditional-ablation-of-p130cas-bcar1-adaptor-protein-impairs-epidermal-homeostasis-by-altering-cell-adhesion-and-differentiation
#8
Maria Del Pilar Camacho Leal, Andrea Costamagna, Beatrice Tassone, Stefania Saoncella, Matilde Simoni, Dora Natalini, Aurora Dadone, Marianna Sciortino, Emilia Turco, Paola Defilippi, Vincenzo Calautti, Sara Cabodi
BACKGROUND: p130 Crk-associated substrate (p130CAS; also known as BCAR1) is a scaffold protein that modulates many essential cellular processes such as cell adhesion, proliferation, survival, cell migration, and intracellular signaling. p130Cas has been shown to be highly expressed in a variety of human cancers of epithelial origin. However, few data are available regarding the role of p130Cas during normal epithelial development and homeostasis. METHODS: To this end, we have generated a genetically modified mouse in which p130Cas protein was specifically ablated in the epidermal tissue...
November 3, 2018: Cell Communication and Signaling: CCS
https://www.readbyqxmd.com/read/30390653/wnk-pathways-in-cancer-signaling-networks
#9
REVIEW
Sachith Gallolu Kankanamalage, Aroon S Karra, Melanie H Cobb
BACKGROUND: The with no lysine [K] (WNK) pathway consists of the structurally unique WNK kinases, their downstream target kinases, oxidative stress responsive (OSR)1 and SPS/Ste20-related proline-alanine-rich kinase (SPAK), and a multitude of OSR1/SPAK substrates including cation chloride cotransporters. MAIN BODY: While the best known functions of the WNK pathway is regulation of ion transport across cell membranes, WNK pathway components have been implicated in numerous human diseases...
November 3, 2018: Cell Communication and Signaling: CCS
https://www.readbyqxmd.com/read/30348177/copper-signalling-causes-and-consequences
#10
REVIEW
Julianna Kardos, László Héja, Ágnes Simon, István Jablonkai, Richard Kovács, Katalin Jemnitz
Copper-containing enzymes perform fundamental functions by activating dioxygen (O2 ) and therefore allowing chemical energy-transfer for aerobic metabolism. The copper-dependence of O2 transport, metabolism and production of signalling molecules are supported by molecular systems that regulate and preserve tightly-bound static and weakly-bound dynamic cellular copper pools. Disruption of the reducing intracellular environment, characterized by glutathione shortage and ambient Cu(II) abundance drives oxidative stress and interferes with the bidirectional, copper-dependent communication between neurons and astrocytes, eventually leading to various brain disease forms...
October 22, 2018: Cell Communication and Signaling: CCS
https://www.readbyqxmd.com/read/30348174/macrophage-migration-inhibitory-factor-contributes-to-the-pathogenesis-of-benign-lymphoepithelial-lesion-of-the-lacrimal-gland
#11
Yao Mawulikplimi Adzavon, Pengxiang Zhao, Jianmin Ma, Xujuan Zhang, Xin Zhang, Mingzi Zhang, Mengyu Liu, Limin Wang, Danying Chen, Tarekegn Gebreyesus Abisso, Baobei Lv, Lei Wang, Fei Xie, Xuemei Ma
BACKGROUND: Benign Lymphoepithelial Lesion (BLEL) is a rare disease observed in the adult population. Despite the growing numbers of people suffering from BLEL, the etiology and mechanisms underlying its pathogenesis remain unknown. METHODS: In the present study, we used gene and cytokines expression profiling, western blot and immunohistochemistry to get further insight into the cellular and molecular mechanisms involved in the pathogenesis of BLEL of the lacrimal gland...
October 22, 2018: Cell Communication and Signaling: CCS
https://www.readbyqxmd.com/read/30342530/transferrin-receptor-1-is-a-supplementary-receptor-that-assists-transmissible-gastroenteritis-virus-entry-into-porcine-intestinal-epithelium
#12
Shuai Zhang, Weiwei Hu, Lvfeng Yuan, Qian Yang
BACKGROUND: Transmissible gastroenteritis virus (TGEV), the etiologic agent of transmissible gastroenteritis, infects swine of all ages causing vomiting and diarrhea, in newborn piglets the mortality rate is near 100%. Intestinal epithelial cells are the primary target cells of TGEV. Transferrin receptor 1 (TfR1), which is highly expressed in piglets with anemia, may play a role in TGEV infection. However, the underlying mechanism of TGEV invasion remains largely unknown. RESULTS: Our study investigated the possibility that TfR1 can serve as a receptor for TGEV infection and enables the invasion and replication of TGEV...
October 20, 2018: Cell Communication and Signaling: CCS
https://www.readbyqxmd.com/read/30326911/trpv2-induced-ca-2-calcineurin-nfat-signaling-regulates-differentiation-of-osteoclast-in-multiple-myeloma
#13
Hua Bai, Huayuan Zhu, Qing Yan, Xuxing Shen, Xiupan Lu, Juejin Wang, Jianyong Li, Lijuan Chen
BACKGROUND: Myeloma bone disease (MBD) can cause bone destruction and increase the level of Ca2+ concentration in the bone marrow microenvironment by stimulating osteoclastic differentiation. Nevertheless, the relationships between MBD and highly efficient stimuli of Ca2+ in multiple myeloma (MM) progression, and possible regulatory mechanisms are poorly defined. Here, we reported that the nonselective cation channel transient receptor potential vanilloid 2 (TRPV2) plays a functional role in Ca2+ oscillations and osteoclastogenesis...
October 16, 2018: Cell Communication and Signaling: CCS
https://www.readbyqxmd.com/read/30316300/msc-stimulate-ovarian-tumor-growth-during-intercellular-communication-but-reduce-tumorigenicity-after-fusion-with-ovarian-cancer-cells
#14
Catharina Melzer, Juliane von der Ohe, Ralf Hass
The tumor microenvironment enables important cellular interactions between cancer cells and recruited adjacent populations including mesenchymal stroma/stem cells (MSC). In vivo cellular interactions of primary human MSC in co-culture with human SK-OV-3 ovarian cancer cells revealed an increased tumor growth as compared to mono-cultures of the ovarian cancer cells. Moreover, the presence of MSC stimulated formation of liver metastases. Further interactions of MSC with the ovarian cancer cells resulted in the formation of hybrid cells by cell fusion...
October 13, 2018: Cell Communication and Signaling: CCS
https://www.readbyqxmd.com/read/30305100/a-role-for-rassf1a-in-tunneling-nanotube-formation-between-cells-through-gefh1-rab11-pathway-control
#15
Fatéméh Dubois, Bastien Jean-Jacques, Hélène Roberge, Magalie Bénard, Ludovic Galas, Damien Schapman, Nicolas Elie, Didier Goux, Maureen Keller, Elodie Maille, Emmanuel Bergot, Gérard Zalcman, Guénaëlle Levallet
BACKGROUND: By allowing intercellular communication between cells, tunneling nanotubes (TNTs) could play critical role in cancer progression. If TNT formation is known to require cytoskeleton remodeling, key mechanism controlling their formation remains poorly understood. METHODS: The cells of human bronchial (HBEC-3, A549) or mesothelial (H2452, H28) lines are transfected with different siRNAs (inactive, anti-RASSF1A, anti-GEFH1 and / or anti-Rab11). At 48 h post-transfection, i) the number and length of the nanotubes per cell are quantified, ii) the organelles, previously labeled with specific tracers, exchanged via these structures are monitored in real time between cells cultured in 2D or 3D and in normoxia, hypoxia or in serum deprivation condition...
October 11, 2018: Cell Communication and Signaling: CCS
https://www.readbyqxmd.com/read/30286765/rhomboid-domain-containing-protein-1-promotes-breast-cancer-progression-by-regulating-the-p-akt-and-cdk2-levels
#16
Xin Zhang, Yuechao Zhao, Changjun Wang, Hongge Ju, Wenjie Liu, Xiaohui Zhang, Shiying Miao, Linfang Wang, Qiang Sun, Wei Song
BACKGROUND: Our previous work revealed that rhomboid domain-containing protein 1 (RHBDD1) participates in the modulation of cell growth and apoptosis in colorectal cancer cells. This study aimed to investigate the function of RHBDD1 in regulating breast cancer progression and its underlying molecular basis. METHODS: Immunohistochemistry was performed to evaluate RHBDD1 expression in 116 breast cancer tissue and 39 adjacent normal tissue and expression of RHBDD1, phospho-Akt (p-Akt) and cyclin-dependent kinase 2 (CDK2) in the same 84 breast cancer specimens...
October 4, 2018: Cell Communication and Signaling: CCS
https://www.readbyqxmd.com/read/30285764/reduced-menin-expression-impairs-rapamycin-effects-as-evidenced-by-an-increase-in-mtorc2-signaling-and-cell-migration
#17
Masoud Razmara, Azita Monazzam, Britt Skogseid
BACKGROUND: Mammalian target of rapamycin (mTOR) is a master regulator of various cellular responses by forming two functional complexes, mTORC1 and mTORC2. mTOR signaling is frequently dysregulated in pancreatic neuroendocrine tumors (PNETs). mTOR inhibitors have been used in attempts to treat these lesions, and prolonged progression free survival has been recorded. If this holds true also for the multiple endocrine neoplasia type 1 (MEN1) associated PNETs is yet unclear. We investigated the relationship between expression of the MEN1 protein menin and mTOR signaling in the presence or absence of the mTOR inhibitor rapamycin...
October 1, 2018: Cell Communication and Signaling: CCS
https://www.readbyqxmd.com/read/30257675/cold-shock-proteins-from-cellular-mechanisms-to-pathophysiology-and-disease
#18
REVIEW
Jonathan A Lindquist, Peter R Mertens
Cold shock proteins are multifunctional RNA/DNA binding proteins, characterized by the presence of one or more cold shock domains. In humans, the best characterized members of this family are denoted Y-box binding proteins, such as Y-box binding protein-1 (YB-1). Biological activities range from the regulation of transcription, splicing and translation, to the orchestration of exosomal RNA content. Indeed, the secretion of YB-1 from cells via exosomes has opened the door to further potent activities. Evidence links a skewed cold shock protein expression pattern with cancer and inflammatory diseases...
September 26, 2018: Cell Communication and Signaling: CCS
https://www.readbyqxmd.com/read/30241478/tem8-functions-as-a-receptor-for-upa-and-mediates-upa-stimulated-egfr-phosphorylation
#19
Lian-Cheng Zhang, Yong Shao, Li-Hua Gao, Jin Liu, Yong-Yi Xi, Yin Xu, Chutse Wu, Wei Chen, Hui-Peng Chen, You-Liang Wang, Hai-Feng Duan, Xian-Wen Hu
BACKGROUND: TEM8 is a cell membrane protein predominantly expressed in tumor endothelium, which serves as a receptor for the protective antigen (PA) of anthrax toxin. However, the physiological ligands for TEM8 remain unknown. RESULTS: Here we identified uPA as an interacting partner of TEM8. Binding of uPA stimulated the phosphorylation of TEM8 and augmented phosphorylation of EGFR and ERK1/2. Finally, TEM8-Fc, a recombinant fusion protein comprising the extracellular domain of human TEM8 linked to the Fc portion of human IgG1, efficiently abrogated the interaction between uPA and TEM8, blocked uPA-induced migration of HepG2 cells in vitro and inhibited the growth and metastasis of human MCF-7 xenografts in vivo...
September 21, 2018: Cell Communication and Signaling: CCS
https://www.readbyqxmd.com/read/30231881/igfbp6-controls-the-expansion-of-chemoresistant-glioblastoma-through-paracrine-igf2-igf-1r-signaling
#20
Claudia R Oliva, Brian Halloran, Anita B Hjelmeland, Ana Vazquez, Shannon M Bailey, Jann N Sarkaria, Corinne E Griguer
BACKGROUND: Glioblastomas (GBMs), the most common and most lethal of the primary brain tumors, are characterized by marked intra-tumor heterogeneity. Several studies have suggested that within these tumors a restricted population of chemoresistant glioma cells is responsible for recurrence. However, the gene expression patterns underlying chemoresistance are largely unknown. Numerous efforts have been made to block IGF-1R signaling pathway in GBM. However, those therapies have been repeatedly unsuccessful...
September 19, 2018: Cell Communication and Signaling: CCS
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