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https://www.readbyqxmd.com/read/28725012/phycocyanin-attenuates-pulmonary-fibrosis-via-the-tlr2-myd88-nf-%C3%AE%C2%BAb-signaling-pathway
#1
Chengcheng Li, Yan Yu, Wenjun Li, Bo Liu, Xudong Jiao, Xinyu Song, Changjun Lv, Song Qin
Our aim was to investigate the effects of phycocyanin (PC) on bleomycin (BLM)-induced pulmonary fibrosis (PF). In this study, C57 BL/6 wild-type (WT) mice and toll-like receptor (TLR) 2 deficient mice were treated with PC for 28 days following BLM exposure. Serum and lung tissues were collected on days 3, 7 and 28. Data shows PC significantly decreased the levels of hydroxyproline (HYP), vimentin, surfactant-associated protein C (SP-C), fibroblast specific protein-1 (S100A4) and α-smooth muscle actin (α-SMA) but dramatically increased E-cadherin and podoplanin (PDPN) expression on day 28...
July 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28721450/smad3-and-bmal1-regulate-p21-and-s100a4-expression-in-myocardial-stromal-fibroblasts-via-tnf-%C3%AE
#2
Fuyuki Sato, Akira Kohsaka, Kana Takahashi, Saki Otao, Yusuke Kitada, Yoshiyuki Iwasaki, Yasuteru Muragaki
Bmal1, a clock gene, is associated with depression, hypertrophy, metabolic syndrome and diabetes. Smad3, which is involved in the TGF-β signaling pathway, plays an important role in the regulation of tumor progression, fibrosis, obesity and diabetes. Our previous report showed that Smad3 has circadian expression in mouse livers. In the current study, we focused on the heart, especially on the myocardial stromal fibroblasts because the roles of Bmal1 and Smad3 in this tissue are poorly understood. Bmal1 and Smad3 have circadian expression in mouse hearts, and their circadian expression patterns were similar...
July 18, 2017: Histochemistry and Cell Biology
https://www.readbyqxmd.com/read/28713091/-s100a4-macc-1-reg-4-promising-biomarkers-of-metastasis-in-cancers
#3
Bartosz Czerniak, Dorota Olszewska-Słonina, Anna Cwynar
Metastasis is one of the key steps in cancer, which is exposed to a large group of patients diagnosed with malignancy. Initiating the process of metastasis is to move the epithelial - mesenchymal cells wherein the cancer cells by blood and lymph vessels, penetrate to distant sites of the body to form secondary foci. Cancer biomarkers are group of molecules (typically proteins) secreted mainly by tumor cells themselves having use in diagnosis of cancer, determining the length of survival in patients or in the assessment of the body's response to treatment...
2017: Wiadomości Lekarskie: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/28688902/serum-s100-calcium-binding-protein-a4-improves-the-diagnostic-accuracy-of-transient-elastography-for-assessing-liver-fibrosis-in-hepatitis-b
#4
Li-Bo Yan, Qing-Bo Zhang, Xia Zhu, Min He, Hong Tang
AIM: The diagnostic performance of Fibroscan might be improved when combined with other serum fibrosis related markers. Previous study has demonstrated that S100A4 expression is associated with liver fibrosis in humans with hepatitis. This study aimed to clarify diagnostic accuracy of serum S100A4 levels for significant liver fibrosis in patients with chronic hepatitis B (CHB), and develop a combined algorithm of liver stiffness measurement (LSM) and S100A4 to predict significant liver fibrosis in CHB...
July 5, 2017: Clinics and Research in Hepatology and Gastroenterology
https://www.readbyqxmd.com/read/28675500/fam107b-is-regulated-by-s100a4-and-mediates-the-effect-of-s100a4-on-the-proliferation-and-migration-of-mgc803-gastric-cancer-cells
#5
Junfu Guo, Yue Bian, Yu Wang, Lisha Chen, Aiwen Yu, Xiuju Sun
FAM107B expression was decreased in stomach cancer and many other kinds of cancer. The forced expression of FAM107B in HeLa cells diminished proliferation in response to growth factors, suggesting that FAM107B might play important roles in many types of cancers. But the mechanisms underlying the decreased expression of FAM107B in cancers are not clear, the functional significance needs to be further clarified. Our previous findings from cDNA microarray showed that there are 179 differentially expressed genes after S100A4 inhibition in gastric cancer cells MGC803...
July 4, 2017: Cell Biology International
https://www.readbyqxmd.com/read/28669632/regulation-of-the-equilibrium-between-closed-and-open-conformations-of-annexin-a2-by-n-terminal-phosphorylation-and-s100a4-binding
#6
Péter Ecsédi, Bence Kiss, Gergő Gógl, László Radnai, László Buday, Kitti Koprivanacz, Károly Liliom, Ibolya Leveles, Beáta Vértessy, Norbert Jeszenői, Csaba Hetényi, Gitta Schlosser, Gergely Katona, László Nyitray
Annexin A2 (ANXA2) has a versatile role in membrane-associated functions including membrane aggregation, endo- and exocytosis, and it is regulated by post-translational modifications and protein-protein interactions through the unstructured N-terminal domain (NTD). Our sequence analysis revealed a short motif responsible for clamping the NTD to the C-terminal core domain (CTD). Structural studies indicated that the flexibility of the NTD and CTD are interrelated and oppositely regulated by Tyr24 phosphorylation and Ser26Glu phosphomimicking mutation...
June 21, 2017: Structure
https://www.readbyqxmd.com/read/28656223/rapamycin-inhibits-cacl2-induced-thoracic-aortic-aneurysm-formation-in-rats-through-mtor-mediated-suppression-of-proinflammatory-mediators
#7
Jiumei Cao, Qihong Wu, Liang Geng, Xiaonan Chen, Weifeng Shen, Fang Wu, Ying Chen
The aim of the present study was to investigate the effect of the mammalian target of rapamycin (mTOR) signaling pathway on thoracic aortic aneurysm (TAA) development. The study used a calcium chloride (CaCl2)‑induced rat TAA model to explore the potential role of mTOR signaling pathway in the disease development. Adult male Sprague‑Dawley rats underwent the periarterial exposure of thoracic aorta to either 0.5 M CaCl2 or normal saline, and a subgroup of CaCl2‑treated rats received rapamycin 1 day prior to surgery...
August 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28621171/boundary-cap-neural-crest-stem-cell-transplants-contribute-mts1-s100a4-expressing-cells-in-the-glial-scar
#8
Carl Trolle, Patrik Ivert, Jan Hoeber, Iris Rocamonde-Lago, Svitlana Vasylovska, Eugen Lukanidin, Elena N Kozlova
AIM: During development, boundary cap neural crest stem cells (bNCSCs) assist sensory axon growth into the spinal cord. Here we repositioned them to test if they assist regeneration of sensory axons in adult mice after dorsal root avulsion injury. MATERIALS & METHODS: Avulsed mice received bNCSC or human neural progenitor (hNP) cell transplants and their contributions to glial scar formation and sensory axon regeneration were analyzed with immunohistochemistry and transganglionic tracing...
June 16, 2017: Regenerative Medicine
https://www.readbyqxmd.com/read/28615627/reduction-in-migratory-phenotype-in-a-metastasized-breast-cancer-cell-line-via-downregulation-of-s100a4-and-grm3
#9
Andy Chen, Luqi Wang, Bai-Yan Li, Jesse Sherman, Jong E Ryu, Kazunori Hamamura, Yunlong Liu, Harikrishna Nakshatri, Hiroki Yokota
To investigate phenotypic and genotypic alterations before and after bone metastasis, we conducted genome-wide mRNA profiling and DNA exon sequencing of two cell lines (TMD and BMD) derived from a mouse xenograft model. TMD cells were harvested from the mammary fat pad after transfecting MDA-MB-231 breast cancer cells, while BMD cells were isolated from the metastasized bone. Compared to BMD cells, TMD cells exhibited higher cellular motility. In contrast, BMD cells formed a spheroid with a smoother and more circular surface when co-cultured with osteoblasts...
June 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28590921/s100a4-in-cancer-progression-and-metastasis-a-systematic-review
#10
REVIEW
Fei Fei, Jie Qu, Mingqing Zhang, Yuwei Li, Shiwu Zhang
Metastasis is the leading cause of cancer-related death and directly associates with cancer progression, resistance to anticancer therapy, and poor patient survival. Current efforts focusing on the underlying molecular mechanisms of cancer metastasis attract a special attention to cancer researchers. The epithelial-mesenchymal transition is a complex of molecular program during embryogenesis, inflammation, tissue fibrosis, and cancer progression and metastasis. S100A4, an important member of S100 family proteins, functions to increase the tumor progression and metastasis...
May 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/28560425/investigating-critical-genes-and-gene-interaction-networks-that-mediate-cyclophosphamide-sensitivity-in-chronic-myelogenous-leukemia
#11
Xiao He, Yuying Deng, Wei Yue
Drug resistance is an obstacle in the treatment of chronic myelogenous leukemia (CML), and is a common reason for treatment failure or disease progression. However, the underlying mechanisms of cyclophosphamide resistance remain poorly defined. In the present study, microarray data concerning cyclophosphamide‑sensitive and ‑resistant chronic myelogenous leukemia cell lines were analyzed. A total of 258 differentially‑expressed genes (DEGs) were identified between these two groups, from which 139 DEGs were upregulated and 119 were downregulated...
July 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28559049/attenuation-of-thioacetamide-induced-hepatocellular-injury-by-short-term-repeated-injections-associated-with-down-regulation-of-metabolic-enzymes-and-relationship-with-mhc-class-ii-presenting-cells
#12
Mizuki Kuramochi, Takeshi Izawa, Munmun Pervin, Alexandra Bondoc, Mitsuru Kuwamura, Jonathan LaMarre, Jyoji Yamate
The liver is the primary organ participating in the metabolism of xenobiotics and is therefore an important target in the safety assessment of drugs, chemicals and environmental toxins. Drug-induced liver injury (DILI) has recently become widely recognized in human medicine as an adverse event. The progression of DILI often involves "damage-associated molecular patterns" (DAMPs) of gene and protein expression such as high-mobility group boxes (HMGBs), S100 proteins and heat shock proteins (Hsp). DAMPs are released from injured or necrotic cells and are bound to Toll-like receptors (TLRs) and modulate inflammatory reactions...
May 27, 2017: Experimental and Toxicologic Pathology: Official Journal of the Gesellschaft Für Toxikologische Pathologie
https://www.readbyqxmd.com/read/28550109/chronic-%C3%AE-cell-depolarization-impairs-%C3%AE-cell-identity-by-disrupting-a-network-of-ca-2-regulated-genes
#13
Jennifer S Stancill, Jean-Philippe Cartailler, Hannah W Clayton, James T O'Connor, Matthew T Dickerson, Prasanna K Dadi, Anna B Osipovich, David A Jacobson, Mark A Magnuson
We used mice lacking Abcc8, a key component of the β-cell KATP-channel, to analyze the effects of a sustained elevation in the intracellular Ca(2+) concentration ([Ca(2+)]i) on β-cell identity and gene expression. Lineage tracing analysis revealed the conversion of β-cells lacking Abcc8 into PP-cells, but not to α- or δ-cells. RNA-Seq analysis of FACS-purified Abcc8(-/-) β-cells confirmed an increase in Ppy gene expression, and revealed altered expression of over 4,200 genes, many of which are involved in Ca(2+)-signaling, the maintenance of β-cell identity, and cell adhesion...
May 26, 2017: Diabetes
https://www.readbyqxmd.com/read/28540429/identification-of-markers-for-quiescent-pancreatic-stellate-cells-in-the-normal-human-pancreas
#14
Michael Friberg Bruun Nielsen, Michael Bau Mortensen, Sönke Detlefsen
Pancreatic stellate cells (PSCs) play a central role as source of fibrogenic cells in pancreatic cancer and chronic pancreatitis. In contrast to quiescent hepatic stellate cells (qHSCs), a specific marker for quiescent PSCs (qPSCs) that can be used in formalin-fixed and paraffin embedded (FFPE) normal human pancreatic tissue has not been identified. The aim of this study was to identify a marker enabling the identification of qPSCs in normal human FFPE pancreatic tissue. Immunohistochemical (IHC), double-IHC, immunofluorescence (IF) and double-IF analyses were carried out using a tissue microarray consisting of cores with normal human pancreatic tissue...
May 25, 2017: Histochemistry and Cell Biology
https://www.readbyqxmd.com/read/28530639/calcium-binding-protein-s100a4-confers-mesenchymal-progenitor-cell-fibrogenicity-in-idiopathic-pulmonary-fibrosis
#15
Hong Xia, Adam Gilbertsen, Jeremy Herrera, Emilian Racila, Karen Smith, Mark Peterson, Timothy Griffin, Alexey Benyumov, Libang Yang, Peter B Bitterman, Craig A Henke
Idiopathic pulmonary fibrosis (IPF) is a progressive disease with a prevalence of 1 million persons worldwide. The fibrosis spreads from affected alveoli into contiguous alveoli and leads to death by asphyxiation. We previously discovered that the IPF lung harbors fibrogenic mesenchymal progenitor cells (MPCs) that serve as a cell of origin for disease-mediating myofibroblasts. In a prior genomewide transcriptional analysis, we found that IPF MPCs displayed increased expression of S100 calcium-binding A4 (S100A4), a protein linked to cancer cell proliferation and invasiveness...
June 30, 2017: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/28493957/ezrin-interacts-with-s100a4-via-both-its-n-and-c-terminal-domains
#16
Beáta Biri-Kovács, Bence Kiss, Henrietta Vadászi, Gergő Gógl, Gyula Pálfy, György Török, László Homolya, Andrea Bodor, László Nyitray
Ezrin belongs to the ERM (ezrin, radixin, moesin) protein family that has a role in cell morphology changes, adhesion and migration as an organizer of the cortical cytoskeleton by linking actin filaments to the apical membrane of epithelial cells. It is highly expressed in a variety of human cancers and promotes metastasis. Members of the Ca2+-binding EF-hand containing S100 proteins have similar pathological properties; they are overexpressed in cancer cells and involved in metastatic processes. In this study, using tryptophan fluorescence and stopped-flow kinetics, we show that S100A4 binds to the N-terminal ERM domain (N-ERMAD) of ezrin with a micromolar affinity...
2017: PloS One
https://www.readbyqxmd.com/read/28479848/inhibitory-effects-of-s100a4-gene-silencing-on-alkali-burn-induced-corneal-neovascularization-an-in-vivo-study
#17
Yu-Lin Wang, Gui-Ping Gao, Yu-Qin Wang, Ying Wu, Zhi-You Peng, Quan Zhou
OBJECTIVE: The purpose of this study is to explore the inhibitory effects of S100A4 gene silencing on alkali burn-induced corneal neovascularization (CNV) in rabbit models. METHODS: Sixty-five rabbits were used to establish alkali-induced CNV models. After the operation, rabbits were given daily antibiotic eye drops and an eye ointment to prevent infection. The models were assigned to either an S100A4 siRNA or an empty vector group. Thirty rabbits were selected as the normal control group...
2017: Molecular Vision
https://www.readbyqxmd.com/read/28423501/epigenetic-silencing-of-mir-520c-leads-to-induced-s100a4-expression-and-its-mediated-colorectal-cancer-progression
#18
Giridhar Mudduluru, Katharina Ilm, Steffen Fuchs, Ulrike Stein
The S100 calcium-binding protein A4 (S100A4) induces epithelial mesenchymal transition, migration, invasion, angiogenesis and metastasis. Its induced expression in several cancer types correlates with poor prognosis. Apart from the functional and transcriptional regulatory aspects of S100A4, its post-transcriptional regulation is not yet clearly elucidated. In this study, we show that microRNAs (miR) miR-505-5p and miR-520c-3p target the 3'-UTR of S100A4 and inhibits its expression and its mediated migration and invasion...
March 28, 2017: Oncotarget
https://www.readbyqxmd.com/read/28395325/interaction-of-macrophages-and-endometrial-cells-induces-epithelial-mesenchymal-transition-like-processes-in-adenomyosis%C3%A2
#19
Min An, Dong Li, Ming Yuan, Qiuju Li, Lu Zhang, Guoyun Wang
Adenomyosis is a nonneoplastic condition characterized by the benign invasion of ectopic endometrium into the myometrium. Macrophages play significant roles in epithelial-mesenchymal transition (EMT) and adenomyosis. An EMT associated with adenomyosis has been extensively studied. This study investigated the process by which the interaction of macrophages with endometrial cells induces EMT in Ishikawa cells and epithelial cells of adenomyosis. Specimens were collected after hysterectomy or resection of adenomyosis lesions from women with adenomyosis and curettage from women without adenomyosis or endometriosis...
January 1, 2017: Biology of Reproduction
https://www.readbyqxmd.com/read/28363907/retinoic-acid-regulates-immune-responses-by-promoting-il-22-and-modulating-s100-proteins-in-viral-hepatitis
#20
Zuliang Jie, Yuejin Liang, Panpan Yi, Hui Tang, Lynn Soong, Yingzi Cong, Kangling Zhang, Jiaren Sun
Although large amounts of vitamin A and its metabolite all-trans retinoic acid (RA) are stored in the liver, how RA regulates liver immune responses during viral infection remains unclear. In this study, we demonstrated that IL-22, mainly produced by hepatic γδ T cells, attenuated liver injury in adenovirus-infected mice. RA can promote γδ T cells to produce mTORC1-dependent IL-22 in the liver, but inhibits IFN-γ and IL-17. RA also affected the aptitude of T cell responses by modulating dendritic cell (DC) migration and costimulatory molecule expression...
May 1, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
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