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Cell Communication and Signaling: CCS

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https://www.readbyqxmd.com/read/28637464/kaiso-differentially-regulates-components-of-the-notch-signaling-pathway-in-intestinal-cells
#1
Shaiya C Robinson, Kristina Klobucar, Christina C Pierre, Amna Ansari, Svetlana Zhenilo, Egor Prokhortchouk, Juliet M Daniel
BACKGROUND: In mammalian intestines, Notch signaling plays a critical role in mediating cell fate decisions; it promotes the absorptive (or enterocyte) cell fate, while concomitantly inhibiting the secretory cell fate (i.e. goblet, Paneth and enteroendocrine cells). We recently reported that intestinal-specific Kaiso overexpressing mice (Kaiso (Tg) ) exhibited chronic intestinal inflammation and had increased numbers of all three secretory cell types, hinting that Kaiso might regulate Notch signaling in the gut...
June 21, 2017: Cell Communication and Signaling: CCS
https://www.readbyqxmd.com/read/28637459/the-role-of-jak-stat-signaling-pathway-and-its-regulators-in-the-fate-of-t-helper-cells
#2
REVIEW
Farhad Seif, Majid Khoshmirsafa, Hossein Aazami, Monireh Mohsenzadegan, Gholamreza Sedighi, Mohammadali Bahar
The Janus kinase (JAK)-signal transducer and activator of transcription (STAT) pathway plays critical roles in orchestrating of immune system, especially cytokine receptors and they can modulate the polarization of T helper cells. This pathway is regulated by an array of regulator proteins, including Suppressors of Cytokine Signaling (SOCS), Protein Inhibitors of Activated STATs (PIAS) and Protein Tyrosine Phosphatases (PTPs) determining the initiation, duration and termination of the signaling cascades. Dysregulation of the JAK-STAT pathway in T helper cells may result in various immune disorders...
June 21, 2017: Cell Communication and Signaling: CCS
https://www.readbyqxmd.com/read/28629477/identification-of-egf-nf-%C3%AE%C2%BAb-foxc1-signaling-axis-in-basal-like-breast-cancer
#3
Stacey Chung, Yanli Jin, Bingchen Han, Ying Qu, Bowen Gao, Armando E Giuliano, Xiaojiang Cui
BACKGROUND: The pathogenesis of human basal-like breast cancer (BLBC) is not well understood and patients with BLBC have a poor prognosis. Expression of the epidermal growth factor receptor (EGFR) and nuclear factor-κB (NF-κB) is well-known to be upregulated in BLBC. The forkhead box C1 (FOXC1) transcription factor, an important prognostic biomarker specific for BLBC, has been shown to be induced by EGF and is critical for EGF effects in breast cancer cells. How FOXC1 is transcriptionally activated in BLBC is not clear...
June 19, 2017: Cell Communication and Signaling: CCS
https://www.readbyqxmd.com/read/28606091/lasp2-suppresses-colorectal-cancer-progression-through-jnk-p38-mapk-pathway-meditated-epithelial-mesenchymal-transition
#4
Bin Wang, Lanzhi Zhang, Liying Zhao, Rui Zhou, Yanqing Ding, Guoxin Li, Liang Zhao
BACKGROUND: LASP2 (LIM and SH3 Protein 2) is a small focal adhesion protein belongs to nebulin protein family. As the newest member of nebulette family, the function of LASP2 remains to be identified. METHODS: The relationship between LASP2 expression and clinical characteristics of CRC was analyzed in 89 paraffin-embedded archived CRC specimens by immunohistochemistry (IHC). The effects of LASP2 on cell growth and migration were examined in vitro, using CCK-8 and transwell assays...
June 12, 2017: Cell Communication and Signaling: CCS
https://www.readbyqxmd.com/read/28577565/the-sound-of-tumor-cell-microenvironment-communication-composed-by-the-cancer-cluster-salzburg-research-network
#5
EDITORIAL
Silja Wessler, Fritz Aberger, Tanja N Hartmann
No abstract text is available yet for this article.
June 2, 2017: Cell Communication and Signaling: CCS
https://www.readbyqxmd.com/read/28499439/the-role-of-tgf-%C3%AE-and-its-crosstalk-with-rac1-rac1b-signaling-in-breast-and-pancreas-carcinoma
#6
REVIEW
Catharina Melzer, Ralf Hass, Juliane von der Ohe, Hendrik Lehnert, Hendrik Ungefroren
This article focusses on the role of TGF-β and its signaling crosstalk with the RHO family GTPases RAC1 and RAC1b in the progression of breast and pancreatic carcinoma. The aggressive nature of these tumor types is mainly due to metastatic dissemination. Metastasis is facilitated by desmoplasia, a peculiar tumor microenvironment and the ability of the tumor cells to undergo epithelial-mesenchymal transition (EMT) and to adopt a motile and invasive phenotype. These processes are controlled entirely or in part by TGF-β and the small RHO GTPase RAC1 with both proteins acting as tumor promoters in late-stage cancers...
May 12, 2017: Cell Communication and Signaling: CCS
https://www.readbyqxmd.com/read/28482915/dr5-suppression-induces-sphingosine-1-phosphate-dependent-traf2-polyubiquitination-leading-to-activation-of-jnk-ap-1-and-promotion-of-cancer-cell-invasion
#7
You-Take Oh, Ping Yue, Shi-Yong Sun
BACKGROUND: Death receptor (DR5), a well-characterized death domain-containing cell surface pro-apoptotic protein, has been suggested to suppress cancer cell invasion and metastasis. However, the underlying mechanisms have not been fully elucidated. Our recent work demonstrates that DR5 suppression promotes cancer cell invasion and metastasis through caspase-8/TRAF2-mediated activation of ERK and JNK signaling and MMP1 elevation. The current study aimed at addressing the mechanism through which TRAF2 is activated in a caspase-8 dependent manner...
May 8, 2017: Cell Communication and Signaling: CCS
https://www.readbyqxmd.com/read/28472950/senescence-associated-il-6-and-il-8-cytokines-induce-a-self-and-cross-reinforced-senescence-inflammatory-milieu-strengthening-tumorigenic-capabilities-in-the-mcf-7-breast-cancer-cell-line
#8
Paola Ortiz-Montero, Arturo Londoño-Vallejo, Jean-Paul Vernot
BACKGROUND: There is compelling evidence associating senescent cells with the malignant progression of tumours. Of all senescence-related mechanisms, the so-called senescence-associated secretory phenotype (SASP) has attracted much attention. Since the pro-inflammatory cytokines IL-6 and IL-8 are consistently present in the SASP, and secreted by highly aggressive breast cancer cell lines, we aimed at elucidating their role on the less aggressive breast cancer cell line MCF-7, which does not secret these cytokines...
May 4, 2017: Cell Communication and Signaling: CCS
https://www.readbyqxmd.com/read/28464919/the-role-of-apoptosis-repressor-with-a-card-domain-arc-in-the-therapeutic-resistance-of-renal-cell-carcinoma-rcc-the-crucial-role-of-arc-in-the-inhibition-of-extrinsic-and-intrinsic-apoptotic-signalling
#9
Csaba Toth, Sarah Funke, Vanessa Nitsche, Anna Liverts, Viktoriya Zlachevska, Marcia Gasis, Constanze Wiek, Helmut Hanenberg, Csaba Mahotka, Peter Schirmacher, Sebastian Heikaus
BACKGROUND: Renal cell carcinomas (RCCs) display broad resistance against conventional radio- and chemotherapies, which is due at least in part to impairments in both extrinsic and intrinsic apoptotic pathways. One important anti-apoptotic factor that is strongly overexpressed in RCCs and known to inhibit both apoptotic pathways is ARC (apoptosis repressor with a CARD domain). METHODS: Expression and subcellular distribution of ARC in RCC tissue samples and RCC cell lines were determined by immunohistochemistry and fluorescent immunohistochemistry, respectively...
May 2, 2017: Cell Communication and Signaling: CCS
https://www.readbyqxmd.com/read/28427431/from-inflammation-to-gastric-cancer-the-importance-of-hedgehog-gli-signaling-in-helicobacter-pylori-induced-chronic-inflammatory-and-neoplastic-diseases
#10
REVIEW
Silja Wessler, Linda M Krisch, Dominik P Elmer, Fritz Aberger
Infections with the human pathogen Helicobacter pylori (H. pylori) are closely associated with the development of inflammatory disorders and neoplastic transformation of the gastric epithelium. Drastic changes in the micromilieu involve a complex network of H. pylori-regulated signal transduction pathways leading to the release of proinflammatory cytokines, gut hormones and a wide range of signaling molecules. Besides controlling embryonic development, the Hedgehog/GLI signaling pathway also plays important roles in epithelial proliferation, differentiation, and regeneration of the gastric physiology, but also in the induction and progression of inflammation and neoplastic transformation in H...
April 20, 2017: Cell Communication and Signaling: CCS
https://www.readbyqxmd.com/read/28376875/tgfbr2-dependent-alterations-of-exosomal-cargo-and-functions-in-dna-mismatch-repair-deficient-hct116-colorectal-cancer-cells
#11
Fabia Fricke, Jennifer Lee, Malwina Michalak, Uwe Warnken, Ingrid Hausser, Meggy Suarez-Carmona, Niels Halama, Martina Schnölzer, Jürgen Kopitz, Johannes Gebert
BACKGROUND: Colorectal cancers (CRCs) that lack DNA mismatch repair function exhibit the microsatellite unstable (MSI) phenotype and are characterized by the accumulation of frameshift mutations at short repetitive DNA sequences (microsatellites). These tumors recurrently show inactivating frameshift mutations in the tumor suppressor Transforming Growth Factor Beta Receptor Type 2 (TGFBR2) thereby abrogating downstream signaling. How altered TGFBR2 signaling affects exosome-mediated communication between MSI tumor cells and their environment has not been resolved...
April 4, 2017: Cell Communication and Signaling: CCS
https://www.readbyqxmd.com/read/28359286/the-double-edged-sword-of-re-expression-of-genes-by-hypomethylating-agents-from-viral-mimicry-to-exploitation-as-priming-agents-for-targeted-immune-checkpoint-modulation
#12
REVIEW
Florian Wolff, Michael Leisch, Richard Greil, Angela Risch, Lisa Pleyer
Hypomethylating agents (HMAs) have been widely used over the last decade, approved for use in myelodysplastic syndrome (MDS), chronic myelomonocytic leukemia (CMML) and acute myeloid leukemia (AML). The proposed central mechanism of action of HMAs, is the reversal of aberrant methylation in tumor cells, thus reactivating CpG-island promoters and leading to (re)expression of tumor suppressor genes. Recent investigations into the mode of action of azacitidine (AZA) and decitabine (DAC) have revealed new molecular mechanisms that impinge on tumor immunity via induction of an interferon response, through activation of endogenous retroviral elements (ERVs) that are normally epigenetically silenced...
March 31, 2017: Cell Communication and Signaling: CCS
https://www.readbyqxmd.com/read/28356110/understanding-cell-signaling-in-cancer-stem-cells-for-targeted-therapy-can-phosphoproteomics-help-to-reveal-the-secrets
#13
REVIEW
Wolfgang Gruber, Tamara Scheidt, Fritz Aberger, Christian G Huber
BACKGROUND: Cancer represents heterogeneous and aberrantly proliferative manifestations composed of (epi)genetically and phenotypically distinct cells with a common clonal origin. Cancer stem cells (CSC) make up a rare subpopulation with the remarkable capacity to initiate, propagate and spread a malignant disease. Furthermore, CSC show increased therapy resistance, thereby contributing to disease relapse. Elimination of CSC, therefore, is a crucial aim to design efficacious treatments for long-term survival of cancer patients...
March 29, 2017: Cell Communication and Signaling: CCS
https://www.readbyqxmd.com/read/28347299/erratum-to-integrin-fak-signaling-rapidly-and-potently-promotes-mitochondrial-function-through-stat3
#14
Nishant P Visavadiya, Matthew P Keasey, Vladislav Razskazovskiy, Kalpita Banerjee, Cuihong Jia, Chiharu Lovins, Gary L Wright, Theo Hagg
No abstract text is available yet for this article.
March 27, 2017: Cell Communication and Signaling: CCS
https://www.readbyqxmd.com/read/28212658/c-met-expression-and-activity-in-urogenital-cancers-novel-aspects-of-signal-transduction-and-medical-implications
#15
REVIEW
Ralf Hass, Susanne Jennek, Yuanyuan Yang, Karlheinz Friedrich
C-Met is a receptor tyrosine kinase with multiple functions throughout embryonic development, organogenesis and wound healing and is expressed in various epithelia. The ligand of c-Met is Hepatocyte Growth Factor (HGF) which is secreted among others by mesenchymal stroma/stem (MSC) cells.Physiological c-Met functions are centred around processes that underly cellular motility and invasive growth. Aberrant c-Met expression and activity is observed in numerous cancers and makes major contributions to cell malignancy...
February 17, 2017: Cell Communication and Signaling: CCS
https://www.readbyqxmd.com/read/28143584/translationally-controlled-tumour-protein-tctp-is-induced-early-in-human-colorectal-tumours-and-contributes-to-the-resistance-of-hct116-colon-cancer-cells-to-5-fu-and-oxaliplatin
#16
Ulrich-Axel Bommer, Kara L Vine, Prianka Puri, Martin Engel, Lisa Belfiore, Karen Fildes, Marijka Batterham, Alistair Lochhead, Morteza Aghmesheh
BACKGROUND: Translationally controlled tumour protein TCTP is an anti-apoptotic protein frequently overexpressed in cancers, where high levels are often associated with poor patient outcome. TCTP may be involved in protecting cancer cells against the cytotoxic action of anti-cancer drugs. Here we study the early increase of TCTP levels in human colorectal cancer (CRC) and the regulation of TCTP expression in HCT116 colon cancer cells, in response to treatment with the anti-cancer drugs 5-FU and oxaliplatin...
February 1, 2017: Cell Communication and Signaling: CCS
https://www.readbyqxmd.com/read/28122581/acute-myeloid-leukemia-strategies-and-challenges-for-targeting-oncogenic-hedgehog-gli-signaling
#17
REVIEW
Fritz Aberger, Evelyn Hutterer, Christina Sternberg, Pedro J Del Burgo, Tanja N Hartmann
Treatment of acute myeloid leukemia (AML), an aggressive and heterogeneous hematological malignancy, remains a challenge. Despite advances in our understanding of the complex genetics and biology of AML pathophysiology, these findings have been translated to the clinic with only limited success, and poor outcomes persist for the majority of patients. Thus, novel treatment strategies are clearly needed for achieving deeper and prolonged remissions and for avoiding the development of resistance. Due to its profound role in (cancer) stem cell biology and differentiation, the Hedgehog (HH)/Glioma-associated Oncogene Homolog (GLI) signaling pathway may be an attractive novel therapeutic target in AML...
January 25, 2017: Cell Communication and Signaling: CCS
https://www.readbyqxmd.com/read/28122577/the-id-protein-family-in-developmental-and-cancer-associated-pathways
#18
REVIEW
Cornelia Roschger, Chiara Cabrele
Inhibitors of DNA binding and cell differentiation (Id) proteins are members of the large family of the helix-loop-helix (HLH) transcription factors, but they lack any DNA-binding motif. During development, the Id proteins play a key role in the regulation of cell-cycle progression and cell differentiation by modulating different cell-cycle regulators both by direct and indirect mechanisms. Several Id-protein interacting partners have been identified thus far, which belong to structurally and functionally unrelated families, including, among others, the class I and II bHLH transcription factors, the retinoblastoma protein and related pocket proteins, the paired-box transcription factors, and the S5a subunit of the 26 S proteasome...
January 25, 2017: Cell Communication and Signaling: CCS
https://www.readbyqxmd.com/read/28103956/unraveling-the-regulation-of-mtorc2-using-logical-modeling
#19
Kirsten Thobe, Christine Sers, Heike Siebert
BACKGROUND: The mammalian target of rapamycin (mTOR) is a regulator of cell proliferation, cell growth and apoptosis working through two distinct complexes: mTORC1 and mTORC2. Although much is known about the activation and inactivation of mTORC1, the processes controlling mTORC2 remain poorly characterized. Experimental and modeling studies have attempted to explain the regulation of mTORC2 but have yielded several conflicting hypotheses. More specifically, the Phosphoinositide 3-kinase (PI3K) pathway was shown to be involved in this process, but the identity of the kinase interacting with and regulating mTORC2 remains to be determined (Cybulski and Hall, Trends Biochem Sci 34:620-7, 2009)...
January 19, 2017: Cell Communication and Signaling: CCS
https://www.readbyqxmd.com/read/28100240/reactivation-of-dormant-anti-tumor-immunity-a-clinical-perspective-of-therapeutic-immune-checkpoint-modulation
#20
REVIEW
Richard Greil, Evelyn Hutterer, Tanja Nicole Hartmann, Lisa Pleyer
In favor of their outgrowth, cancer cells must resist immune surveillance and edit the immune response. Cancer immunoediting is characterized by fundamental changes in the cellular composition and the inflammatory cytokine profiles in the microenvironment of the primary tumor and metastatic niches, with an ever increasing complexity of interactions between tumor cells and the immune system. Recent data suggest that genetic instability and immunoediting are not necessarily disparate processes. Increasing mutational load may be associated with multiple neoepitopes expressed by the tumor cells and thus increased chances for the immune system to recognize and combat these cells...
January 19, 2017: Cell Communication and Signaling: CCS
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