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https://www.readbyqxmd.com/read/29350052/protective-mechanisms-of-6-gingerol-in-dextran-sulfate-sodium-induced-chronic-ulcerative-colitis-in-mice
#1
B O Ajayi, I A Adedara, E O Farombi
Ulcerative colitis (UC) is a relapsing and remitting inflammatory disease of the colon, with an increasing incidence worldwide. 6-Gingerol (6G) is a bioactive constituent of Zingiber officinale, which has been reported to possess various biological activities. This study was designed to evaluate the role of 6G in chronic UC. Chronic UC was induced in mice by three cycles of 2.5% dextran sulfate sodium (DSS) in drinking water. Each cycle consisted of 7 days of 2.5% DSS followed by 14 days of normal drinking water...
January 1, 2018: Human & Experimental Toxicology
https://www.readbyqxmd.com/read/29348693/variants-in-members-of-the-cadherin-catenin-complex-cdh1-and-ctnnd1-cause-blepharocheilodontic-syndrome
#2
Anneke Kievit, Federico Tessadori, Hannie Douben, Ingrid Jordens, Madelon Maurice, Jeannette Hoogeboom, Raoul Hennekam, Sheela Nampoothiri, Hülya Kayserili, Marco Castori, Margo Whiteford, Connie Motter, Catherine Melver, Michael Cunningham, Anne Hing, Nancy M Kokitsu-Nakata, Siulan Vendramini-Pittoli, Antonio Richieri-Costa, Annette F Baas, Corstiaan C Breugem, Karen Duran, Maarten Massink, Patrick W B Derksen, Wilfred F J van IJcken, Leontine van Unen, Fernando Santos-Simarro, Pablo Lapunzina, Vera L Gil-da Silva Lopes, Elaine Lustosa-Mendes, Max Krall, Anne Slavotinek, Victor Martinez-Glez, Jeroen Bakkers, Koen L I van Gassen, Annelies de Klein, Marie-José H van den Boogaard, Gijs van Haaften
Blepharocheilodontic syndrome (BCDS) consists of lagophthalmia, ectropion of the lower eyelids, distichiasis, euryblepharon, cleft lip/palate and dental anomalies and has autosomal dominant inheritance with variable expression. We identified heterozygous variants in two genes of the cadherin-catenin complex, CDH1, encoding E-cadherin, and CTNND1, encoding p120 catenin delta1 in 15 of 17 BCDS index patients, as was recently described in a different publication. CDH1 plays an essential role in epithelial cell adherence; CTNND1 binds to CDH1 and controls the stability of the complex...
January 18, 2018: European Journal of Human Genetics: EJHG
https://www.readbyqxmd.com/read/29340016/mir-19-regulates-the-proliferation-and-invasion-of-glioma-by-runx3-via-%C3%AE-catenin-tcf-4-signaling
#3
Jikui Sun, Zhifan Jia, Banban Li, Anling Zhang, Guangxiu Wang, Peiyu Pu, Zhijuan Chen, Zengguang Wang, Weidong Yang
Accumulating data demonstrates that the network dysregulation of microRNA-medicated target genes is involved in glioma. We have previously found miR-19a/b overexpression in glioma cell lines and specimens with various tumour grades. However, there was no report on the function and regulatory mechanism of miR-19a/b in glioma. In this study, based on our previous research data, we first determine the inverse relationship between miR-19 (miR-19a and miR-19b) and RUNX3 which is also identified the reduced expression in tumour tissues by real-time PCR and IHC...
December 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/29305909/targeting-oncogenic-transcription-factors-by-polyphenols-a-novel-approach-for-cancer-therapy
#4
REVIEW
Chitra Rajagopal, Manendra Babu Lankadasari, Jesil Mathew Aranjani, K B Harikumar
Inflammation is one of the major causative factor of cancer and chronic inflammation is involved in all the major steps of cancer initiation, progression metastasis and drug resistance. The molecular mechanism of inflammation driven cancer is the complex interplay between oncogenic and tumor suppressive transcription factors which include FOXM1, NF-kB, STAT3,Wnt/β- Catenin, HIF-1α,NRF2, androgen and estrogen receptors. Several products derived from natural sources modulate the expression and activity of multiple transcription factors in various tumor models as evident from studies conducted in cell lines, pre-clinical models and clinical samples...
January 3, 2018: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
https://www.readbyqxmd.com/read/29303613/cellular-differentiation-of-non-transformed-intestinal-epithelial-cells-is-regulated-by-lactobacillus-rhamnosus-and-l-casei-strains
#5
J Kolinska, M Zakostelecka, Z Zemanova, V Lisa, J Golias, H Kozakova, B Dvorak
The aim of this study was to characterize an in vitro modulating effect of three commensal Lactobacillus strains on cellular differentiation of non-transformed crypt-like rat small intestinal cell line IEC-18. IEC-18 was grown on extracellular matrix (ECM), with or without presence of Lactobacillus strains. Gene expression of IEC-18 bacterial detection system - such as Toll-like receptors TLR-2, TLR-4, signal adapter MyD88, cytoplasmic NOD2 receptor, inflammatory cytokines IL-18, IL-1beta, chemokine IL-8 and enzyme caspase-1 - was evaluated using real-time PCR...
January 5, 2018: Physiological Research
https://www.readbyqxmd.com/read/29302899/salivary-duct-carcinoma-and-invasive-ductal-carcinoma-of-the-breast-a-comparative-immunohistochemical-study
#6
Jalal B Jalaly, Souzan Sanati, Rebecca D Chernock, Dikson G Dibe, Samir K El-Mofty
Salivary duct carcinoma (SDC) is a high-grade salivary gland malignancy with great morphological resemblance to invasive ductal carcinoma (IDC) of the breast. Rarely, female patients may have a past history of both SDC and IDC. When these patients present with distant metastasis, accurate identification of the primary tumor is particularly difficult. Additionally, rare metastasis of SDC to the breast and IDC to the salivary (parotid) gland can also present a diagnostic challenge. Our aim was to develop an immunohistochemical panel that reliably distinguishes SDC from IDC...
January 4, 2018: Head and Neck Pathology
https://www.readbyqxmd.com/read/29301979/increased-rounds-of-gonadotropin-stimulation-have-side-effects-on-mouse-fallopian-tubes-and-oocytes
#7
Valentina Di Nisio, Gianna Rossi, Maria Grazia Palmerini, Guido Macchiarelli, Gian Mario Tiboni, Sandra Cecconi
In this study it was evaluated if increased rounds of gonadotropin stimulation could affect in mice: i) expression levels of proteins regulating cell cycle and DNA repair in fallopian tubes and ii) meiotic spindle morphology of ovulated oocytes. To this end, adult female mice were subjected or not (Control) to 6 or 8 rounds of gonadotropin stimulation. Ovulated oocytes were incubated with anti A/B Tubulin to evaluate spindle morphology. Fallopian tubes were analyzed to detect Cyclin D1, phospho-p53/p53, phospho-AKT/AKT, phospho-GSK3B/GSK3B, SOX2, OCT3/4, phospho-B-catenin/B-catenin, phospho-CHK1, and phospho-H2A...
January 4, 2018: Reproduction: the Official Journal of the Society for the Study of Fertility
https://www.readbyqxmd.com/read/29291271/shared-mechanisms-regulate-spatiotemporal-rhoa-dependent-actomyosin-contractility-during-adhesion-and-cell-division
#8
Patrick W B Derksen, Robert A H van de Ven
Local modulation of the actin cytoskeleton is essential for the initiation and maintenance of strong homotypic adhesive interfaces between neighboring cells. The epithelial adherens junction (AJ) fulfils a central role in this process by mediating E-cadherin interactions and functioning as a signaling scaffold to control the activity of the small GTPase RhoA and subsequent actomyosin contractility. Interestingly, a number of regulatory proteins that modulate RhoA activity at the AJ also control RhoA during cytokinesis, an actomyosin-dependent process that divides the cytoplasm to generate two daughter cells at the final stages of mitosis...
December 31, 2017: Small GTPases
https://www.readbyqxmd.com/read/29290587/rapgef5-regulates-nuclear-translocation-of-%C3%AE-catenin
#9
John N Griffin, Florencia Del Viso, Anna R Duncan, Andrew Robson, Woong Hwang, Saurabh Kulkarni, Karen J Liu, Mustafa K Khokha
Canonical Wnt signaling coordinates many critical aspects of embryonic development, while dysregulated Wnt signaling contributes to common diseases, including congenital malformations and cancer. The nuclear localization of β-catenin is the defining step in pathway activation. However, despite intensive investigation, the mechanisms regulating β-catenin nuclear transport remain undefined. In a patient with congenital heart disease and heterotaxy, a disorder of left-right patterning, we previously identified the guanine nucleotide exchange factor, RAPGEF5...
December 27, 2017: Developmental Cell
https://www.readbyqxmd.com/read/29286060/evodiamine-promotes-differentiation-and-inhibits-proliferation-of-c2c12-muscle-cells
#10
Xiangping Yao, Taiyong Yu, Chen Zhao, Youlei Li, Ying Peng, Fengxue Xi, Gongshe Yang
Evodiamine is a botanical alkaloid compound extracted from Tetradium plants. Previous studies have reported that evodiamine (Evo) treatment can reduce food uptake and improve insulin resistance in animals . The skeletal muscle comprises about 40% of the body mass of adults and has a vital role in regulating whole body glucose metabolism and energy metabolism. However, the effect of Evo on skeletal muscle is unclear. The main aim of the present study was to investigate the effect of Evo on the differentiation and proliferation of the mouse C2C12 muscle cell line...
December 13, 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/29280353/exposures-of-male-rats-to-environmental-chemicals-bisphenol-a-and-di-2-ethylhexyl-phthalate-affected-expression-of-several-proteins-in-the-developing-epididymis
#11
F M Abdel-Maksoud, R Knight, K Waler, N Yaghoubi-Yeganeh, J O Olukunle, H Thompson, J R Panizzi, B T Akingbemi
Hormonally active agents are released into the environment from industrial and manufacturing activity. Evidence in the literature indicates that impaired reproductive capacity in wildlife and laboratory species is associated with chemical exposures. In particular, bisphenol A (BPA) and di (2-ethylhexyl) phthalate (DEHP) have generated public interest due to their presence in several consumer products. In this study, we determined that expression of steroid hormone receptors (estrogen and androgen receptors), Wnt4, and β-catenin was greater (p < 0...
January 2018: Andrology
https://www.readbyqxmd.com/read/29276937/pirfenidone-inhibits-proliferation-and-promotes-apoptosis-of-hepatocellular-carcinoma-cells-by-inhibiting-the-wnt-%C3%AE-catenin-signaling-pathway
#12
Wei-Jie Zou, Zhi Huang, Tian-Peng Jiang, Ya-Ping Shen, An-Su Zhao, Shi Zhou, Shuai Zhang
BACKGROUND Hepatocellular carcinoma (HCC) is the most important cause of cancer-related deaths worldwide. Pirfenidone is an orally available small molecule with therapeutic potential for fibrotic diseases. MATERIAL AND METHODS In this study, we analyzed the effects of different pirfenidone concentrations on the proliferation of HepG2 HCC cells using Cell Counting Kit-8 (CCK-8) and colony formation assays. Flow cytometry was performed to measure the apoptotic effects of pirfenidone on HepG2 cells. Western blot analysis was performed to detect the expression of β-catenin and p-β-catenin...
December 25, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/29275936/downregulation-of-akt2-attenuates-er-stress-induced-cytotoxicity-through-jnk-wnt-pathway-in-cardiomyocytes
#13
Yan-Xia Gao, Wen-Ting He, Long-Fei Pan, Hui Feng, Jiang-Li Sun, Bin Zhang, Lei Yu, Li-Jun Li
Akt, also known as protein kinase B (PKB), is a serine/threonine kinase that promotes survival and growth in response to extracellular signals. Akt1 has been demonstrated to play vital roles in cardiovascular diseases, but the role of Akt2 in cardiomyocytes is not fully understood. This study investigated the effect of Akt2 knockdown on tunicamycin (TM)-induced cytotoxicity in cardiomyocytes and the underlying mechanisms with a focus on the JNK-Wnt pathway. TM treatment significantly increased the expression of Akt2 at both mRNA and protein levels, which was shown to be mediated by the induction of reactive oxygen species (ROS)...
December 14, 2017: Bioorganic & Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/29259231/a-novel-cell-line-based-orthotopic-xenograft-mouse-model-that-recapitulates-human-hepatoblastoma
#14
Sarah E Woodfield, Yan Shi, Roma H Patel, Jingling Jin, Angela Major, Stephen F Sarabia, Zbigniew Starosolski, Barry Zorman, Siddharth S Gupta, Zhenghu Chen, Aryana M Ibarra, Karl-Dimiter Bissig, Ketan B Ghaghada, Pavel Sumazin, Dolores López-Terrada, Sanjeev A Vasudevan
Currently, preclinical testing of therapies for hepatoblastoma (HB) is limited to subcutaneous and intrasplenic xenograft models that do not recapitulate the hepatic tumors seen in patients. We hypothesized that injection of HB cell lines into the livers of mice would result in liver tumors that resemble their clinical counterparts. HepG2 and Huh-6 HB cell lines were injected, and tumor growth was monitored with bioluminescence imaging (BLI) and magnetic resonance imaging (MRI). Levels of human α-fetoprotein (AFP) were monitored in the serum of animals...
December 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29250807/the-wnt-transcriptional-switch-tle-removal-or-inactivation
#15
REVIEW
Aravinda-Bharathi Ramakrishnan, Abhishek Sinha, Vinson B Fan, Ken M Cadigan
Many targets of the Wnt/β-catenin signaling pathway are regulated by TCF transcription factors, which play important roles in animal development, stem cell biology, and oncogenesis. TCFs can regulate Wnt targets through a "transcriptional switch," repressing gene expression in unstimulated cells and promoting transcription upon Wnt signaling. However, it is not clear whether this switch mechanism is a general feature of Wnt gene regulation or limited to a subset of Wnt targets. Co-repressors of the TLE family are known to contribute to the repression of Wnt targets in the absence of signaling, but how they are inactivated or displaced by Wnt signaling is poorly understood...
December 18, 2017: BioEssays: News and Reviews in Molecular, Cellular and Developmental Biology
https://www.readbyqxmd.com/read/29228681/cyclophosphamide-causes-osteoporosis-in-c57bl-6-male-mice-suppressive-effects-of-cyclophosphamide-on-osteoblastogenesis-and-osteoclastogenesis
#16
Dongfeng Zhao, Chenglong Wang, Yongjian Zhao, Bing Shu, Youji Jia, Shufen Liu, Hongshen Wang, Junli Chang, Weiwei Dai, Sheng Lu, Qi Shi, Yanping Yang, Yan Zhang, Yongjun Wang
The clinical evidence indicated that cyclophosphamide (CPD), one of the chemotherapy drugs, caused severe deteriorations in bones of cancer patients. However, the exact mechanisms by which CPD exerts effects on bone remodeling is not yet fully elucidated. Therefore, this study was performed to investigate the role and potential mechanism of CPD in osteoblastogenesis and osteoclastogenesis. Here it was found that CPD treatment (100mg/kg/day) for 7 days led to osteoporosis phenotype in male mice. CPD inhibited osteoblastogenesis as shown by decreasing the number and differentiation of bone mesenchymal stem cells (MSCs) and reducing the formation and activity of osteoblasts...
November 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29213079/human-cd26high-t-cells-elicit-tumor-immunity-against-multiple-malignancies-via-enhanced-migration-and-persistence
#17
Stefanie R Bailey, Michelle H Nelson, Kinga Majchrzak, Jacob S Bowers, Megan M Wyatt, Aubrey S Smith, Lillian R Neal, Keisuke Shirai, Carmine Carpenito, Carl H June, Michael J Zilliox, Chrystal M Paulos
CD8+ T lymphocytes mediate potent immune responses against tumor, but the role of human CD4+ T cell subsets in cancer immunotherapy remains ill-defined. Herein, we exhibit that CD26 identifies three T helper subsets with distinct immunological properties in both healthy individuals and cancer patients. Although CD26neg T cells possess a regulatory phenotype, CD26int T cells are mainly naive and CD26high T cells appear terminally differentiated and exhausted. Paradoxically, CD26high T cells persist in and regress multiple solid tumors following adoptive cell transfer...
December 6, 2017: Nature Communications
https://www.readbyqxmd.com/read/29212806/syndecan-1-promotes-wnt-%C3%AE-catenin-signaling-in-multiple-myeloma-by-presenting-wnts-and-r-spondins
#18
Zemin Ren, Harmen van Andel, Wim de Lau, Robin B Hartholt, Madelon M Maurice, Hans Clevers, Marie José Kersten, Marcel Spaargaren, Steven T Pals
Multiple myeloma (MM) is characterized by the expansion of malignant plasma cells in the bone marrow (BM). Most MMs display aberrant Wnt/β-catenin signaling, which drives proliferation; however, they lack oncogenic Wnt-pathway mutations, suggesting activation by autocrine Wnt ligands and/or paracrine Wnts from the BM microenvironment. Expression of the heparan sulfate proteoglycan (HSPG) syndecan-1 is a hallmark of MM. Syndecan-1 is a critical player in the complex reciprocal interaction between MM cells and their BM niche, mediating growth factor/cytokine binding and signaling by its heparan sulfate (HS) chains...
December 6, 2017: Blood
https://www.readbyqxmd.com/read/29207102/lncrna-tug1-serves-an-important-role-in-hypoxia-induced-myocardial-cell-injury-by-regulating-the-mir%C3%A2-145%C3%A2-5p%C3%A2-binp3-axis
#19
Zhongwei Wu, Shengji Zhao, Chunfu Li, Chaoquan Liu
The aim of the present study was to investigate the function of long non‑coding RNA TUG1 in hypoxia‑induced myocardial cell injury and to explore the potential molecular mechanisms. The cardiomyocyte cell line H9c2 was cultured under hypoxic and normoxic conditions. TUG1 expression under hypoxic conditions was then detected. The effects of TUG1 overexpression on viability, apoptosis, migration and invasion were assayed. In addition, the microRNA (miR)‑145‑5p expression was detected. Following H9c2 cell transfection with miR‑145‑5p mimics, the H9c2 cell viability, apoptosis, migration and invasion were also detected...
November 20, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29207039/effective-component-of-salvia%C3%A2-miltiorrhiza-in-promoting-cardiomyogenic-differentiation-of-human-placenta%C3%A2-derived-mesenchymal-stem-cells
#20
Kun Li, Jieqiong Song, Qian Zhao, Bo Wang, Yunli Zhang, Xuezhe Wang, Tiantian Tang, Shizheng Li
Our previous study indicated that Salvia miltiorrhiza (SM) induced human placenta‑derived mesenchymal stem cells (hPDMSCs) to differentiate into cardiomyocytes, however, the effective component of SM in promoting cardiomyogenic differentiation remained to be elucidated. In the present study, the most commonly examined components of SM, including danshensu, salvianolic acid B, protocatechuic aldehyde, tanshinone I (TS I), TS IIA and cryptotanshinone, were used to determine the effective components of SM in promoting cardiomyogenic differentiation...
November 28, 2017: International Journal of Molecular Medicine
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