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https://www.readbyqxmd.com/read/28938611/dickkopf-1-induces-angiogenesis-via-vegf-receptor-2-regulation-independent-of-the-wnt-signaling-pathway
#1
Sung Hoon Choi, Hyemi Kim, Hyun Gyu Lee, Beom Kyung Kim, Jun Yong Park, Do Young Kim, Sang Hoon Ahn, Kwang-Hyub Han, Seung Up Kim
Tumor angiogenesis is essential for invasive tumor growth and metastasis. Dickkopf-1 (DKK-1), an antagonist of Wnt signaling, participates in tumor development and progression. We evaluated whether DKK-1 stimulation induces angiogenesis and the endothelial-mesenchymal transition (EnMT). Human umbilical vein endothelial cells (HUVECs) were stimulated with recombinant DKK-1 (rDDK-1) or conditioned medium from a culture of DKK-1-transfected 293 cells. Following stimulation, the expression levels of angiogenesis-related factors and EnMT related markers were determined by immunoblot assays...
August 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28934972/serum-bone-turnover-biomarkers-are-associated-with-the-occurrence-of-peripheral-and-axial-arthritis-in-psoriatic-disease-a-prospective-cross-sectional-comparative-study
#2
Deepak R Jadon, Raj Sengupta, Alison Nightingale, Hui Lu, Juliet Dunphy, Amelia Green, James T Elder, Rajan P Nair, Eleanor Korendowych, Mark A Lindsay, Neil J McHugh
BACKGROUND: A recent systematic review identified four candidate serum-soluble bone-turnover biomarkers (dickkopf-1, Dkk-1; macrophage-colony stimulating factor, M-CSF; matrix metalloproteinase-3, MMP-3; osteoprotegerin, OPG) showing possible association with psoriatic arthritis (PsA). We aimed to: (i) confirm and determine if these four biomarkers are associated with PsA; (ii) differentiate psoriasis cases with and without arthritis; and (iii) differentiate PsA cases with and without axial arthritis...
September 21, 2017: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/28934900/societal-costs-and-effects-of-implementing-population-based-mammography-screening-in-greenland
#3
Maria Klitgaard Christensen, Birgit V Niclasen, Kim Moesgaard Iburg
With a low breast cancer incidence and low population density, Greenland is geographically and organisationally challenged in implementing a cost effective breast cancer screening programme where a large proportion of the Greenlandic women will have to travel far to attend. The aim of this paper is to evaluate the cost effectiveness and cost utility of different strategies for implementing population-based breast cancer screening in Greenland. Two strategies were evaluated: Centralised screening in the capital Nuuk and decentralised screening in the five municipal regions of Greenland...
2017: International Journal of Circumpolar Health
https://www.readbyqxmd.com/read/28927069/overexpression-of-reic-dkk-3-suppresses-the-expression-of-cd147-and-inhibits-the-proliferation-of-human-bladder-cancer-cells
#4
Yuhei Horikawa, Masami Watanabe, Takuya Sadahira, Yuichi Ariyoshi, Yasuyuki Kobayashi, Motoo Araki, Koichiro Wada, Kazuhiko Ochiai, Shun-Ai Li, Yasutomo Nasu
Our group previously developed an adenoviral vector encoding the REIC/Dkk-3 gene (Ad-REIC), a tumor suppressor, for cancer gene therapy. The Ad-REIC agent induces apoptosis and inhibits invasion in a number of cancer cell lines; however, the molecular mechanisms underlying its effects remain unclear. Cluster of differentiation 147 (CD147), also known as extracellular matrix metalloproteinase inducer (EMMPRIN), is a key molecule that promotes cancer proliferation and invasion. In order to elucidate the therapeutic mechanism of Ad-REIC, its effect on the expression of CD147 in human bladder cancer KK47 cells was investigated...
September 2017: Oncology Letters
https://www.readbyqxmd.com/read/28919575/an-integrative-model-of-prostate-cancer-interaction-with-the-bone-microenvironment
#5
A Farhat, D Jiang, D Cui, E T Keller, Trachette L Jackson
Despite advanced efforts in early diagnosis, aggressive surgical treatment, and use of targeted chemotherapies, the prognosis for many cancers is still dismal. This emphasizes the necessity to develop new strategies for understanding tumor growth and metastasis. Here we use a systems approach that combines mathematical modeling and numerical simulation to develop a predictive computational model for prostate cancer and its subversion of the bone microenvironment. This model simulates metastatic prostate cancer evolution, progressing from normal bone and hormone levels to quantifiable diseased states...
September 14, 2017: Mathematical Biosciences
https://www.readbyqxmd.com/read/28912032/androgens-and-androgen-receptor-action-in-skin-and-hair-follicles
#6
REVIEW
Julieta María Ceruti, Gustavo José Leirós, María Eugenia Balañá
Beyond sexual functions, androgens exert their action in skin physiology and pathophysiology. Skin cells are able to synthesize most of active androgens from gonadal or adrenal precursors and the enzymes involved in skin steroidogenesis are implicated both in normal or pathological processes. Even when the role of androgens and androgen receptor (AR) in skin pathologies has been studied for decades, their molecular mechanisms in skin disorders remain largely unknown. Here, we go over recent studies of androgens and AR roles in several skin-related disorders, focusing in the current understanding of its molecular mechanisms in androgenetic alopecia (AGA)...
September 11, 2017: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/28893947/small-molecule-wnt-agonists-correct-cleft-palates-in-pax9-mutant-mice-in-utero
#7
Shihai Jia, Jing Zhou, Christopher Fanelli, Yinshen Wee, John Bonds, Pascal Schneider, Gabriele Mues, Rena N D'Souza
Clefts of the palate and/or lip are the most common among human craniofacial malformations and involve multiple genetic and environmental factors. Defects can only be corrected surgically and require complex life-long treatments. Our studies utilized the well-characterized Pax9(-/-) mouse model with a consistent cleft palate phenotype to test small-molecule Wnt agonist therapies. We first show that the absence of Pax9 alters the expression of Wnt pathway genes including Dkk1 and Dkk2, proven antagonists of Wnt signaling...
September 11, 2017: Development
https://www.readbyqxmd.com/read/28869033/life-course-of-children-with-parental-multiple-sclerosis
#8
Julie Yoon Moberg
BACKGROUND: The majority of persons with multiple sclerosis (MS) experience onset of MS between the ages of 20 and 40. Since two-thirds of the persons with MS are young women of childbearing age, parenthood is an essential issue during this period of life. The potential influence of parental MS on children arises from the varied symptoms of the chronic illness, which affect physical and cognitive abilities. MS disabilities and fatigue can restrict daily life and result in less energy for activities or job loss and thus worse conditions for the family...
August 2017: Danish Medical Journal
https://www.readbyqxmd.com/read/28869031/cost-analysis-of-bariatric-surgery-in-denmark-made-with-a-decision-analytic-model
#9
Oleg Borisenko, Vasily Lukyanov, Søren Paaske Johnsen, Peter Funch-Jensen
INTRODUCTION: Bariatric surgery offers effective obesity treatment. The aim of this study was to evaluate the cost-effectiveness of bariatric surgery in Denmark from a third-party payer perspective in the mid- (ten years) and long-term (lifetime). METHODS: A state-transition Markov model was developed in which patients may experience surgery, post-surgery complications, diabetes mellitus type 2, cardiovascular diseases or die. Transition probabilities, costs and utilities were informed by the literature...
August 2017: Danish Medical Journal
https://www.readbyqxmd.com/read/28816988/relationship-between-serum-adipokine-levels-and-radiographic-progression-in-patients-with-ankylosing-spondylitis-a-preliminary-2-year-longitudinal-study
#10
Ji-Heh Park, Seung-Geun Lee, Yun-Kyung Jeon, Eun-Kyoung Park, Young-Sun Suh, Hyun-Ok Kim
The immunomodulatory effects of adipokines have been extensively studied in rheumatic diseases, and there is a paucity of information regarding their effects on bone metabolism.The aim of this study was to investigate the relationships between serum adipokines levels and radiographic progression over 2 years in patients with ankylosing spondylitis (AS).In this preliminary longitudinal study, we prospectively recruited 20 consecutive male patients with AS and 11 gender- and age-matched healthy subjects. At the baseline and 2-year follow-up, serum adiponectin, leptin, resistin, tumor necrosis factor-alpha (TNF-α), interleukin (IL)-6, and Dickkopf-1(DKK-1) levels were measured in AS patients using enzyme-linked immunosorbent assays; these measurements were only performed at the baseline for healthy controls...
August 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28807014/epigenetic-reprogramming-converts-human-wharton-s-jelly-mesenchymal-stem-cells-into-functional-cardiomyocytes-by-differential-regulation-of-wnt-mediators
#11
G Bhuvanalakshmi, Frank Arfuso, Alan Prem Kumar, Arun Dharmarajan, Sudha Warrier
BACKGROUND: Lineage commitment of mesenchymal stem cells (MSCs) to cardiac differentiation is controlled by transcription factors that are regulated by epigenetic events, mainly histone deacetylation and promoter DNA methylation. Here, we studied the differentiation of human Wharton's jelly MSCs (WJMSCs) into the cardiomyocyte lineage via epigenetic manipulations. METHODS: We introduced these changes using inhibitors of DNA methyl transferase and histone deacetylase, DC301, DC302, and DC303, in various combinations...
August 14, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28763521/correlation-of-dickkopf-1-concentrations-in-plasma-and-synovial-fluid-to-the-severity-of-radiographic-signs-of-equine-osteoarthritis
#12
Jillian S Mills, Marc A Kinsley, Duncan F Peters, Patty S D Weber, Tara R Shearer, Anthony P Pease
OBJECTIVE: The purpose of this study was to determine whether there was a correlation between circulating and intra-synovial Dkk-1 and radiographic signs of equine osteoarthritis. METHODS: Circulating and intra-synovial Dkk-1 levels were measured in clinical cases using a commercially available human Dkk-1 ELISA. Radiographs were performed of the joints from which fluid was collected and these were assessed and scored by a boarded radiologist for joint narrowing, subchondral bone sclerosis, subchondral bone lysis, and periarticular modelling...
September 12, 2017: Veterinary and Comparative Orthopaedics and Traumatology: V.C.O.T
https://www.readbyqxmd.com/read/28749252/the-role-of-dickkopf-1-as-a-potential-prognostic-marker-in-pancreatic-ductal-adenocarcinoma
#13
De-Jun Liu, Yue-Xia Xie, Xiao-Xing Liu, Yan-Miao Huo, Min-Wei Yang, Xue-Liang Fu, Wei Liu, Jian-Yu Yang, Jiao Li, Rong Hua, Pei-Feng Liu, Yong-Wei Sun, Jun-Feng Zhang
Dickkopf-1(DKK-1), the downstream target of β-catenin/T-cell factor, participates in a negative feedback loop in the Wnt signaling and reported as an important biomarker in many tumors. In this study, we analyzed the expression of DKK-1 in pancreatic ductal adenocarcinoma (PDAC) patients at both mRNA and protein levels. We used real-time PCR to detect the expression of DKK-1 in 32 PDAC and paired adjacent non-tumor tissues, results suggested that the expression of DKK-1 was increased in PDAC tissues. We found the similar results in the analysis of 3 independent microarray data sets...
2017: Cell Cycle
https://www.readbyqxmd.com/read/28744803/xanthoceraside-modulates-neurogenesis-to-ameliorate-cognitive-impairment-in-app-ps1-transgenic-mice
#14
Lin Zhu, Tianyan Chi, Xuemei Zhao, Lei Yang, Shijie Song, Qiaohui Lu, Xuefei Ji, Peng Liu, Lihua Wang, Libo Zou
Neuronal loss is reported to be an important pathological process in Alzheimer's disease (AD). Neurogenesis is a process of generation of new neurons to fill the neuronal loss. Xanthoceraside has been shown to attenuate the cognitive deficits in several AD animal models. However, little is known about the effect of xanthoceraside on neurogenesis in APP/PS1 transgenic mice. Thus, in this study, we investigated whether xanthoceraside can ameliorate learning and memory impairment by promoting NSCs proliferation and neuronal differentiation...
July 25, 2017: Journal of Physiological Sciences: JPS
https://www.readbyqxmd.com/read/28738084/the-dkk3-gene-encodes-a-vital-intracellular-regulator-of-cell-proliferation
#15
Jack L Leonard, Deborah M Leonard, Scot A Wolfe, Jilin Liu, Jaime Rivera, Michelle Yang, Ryan T Leonard, Jacob P S Johnson, Prashant Kumar, Kate L Liebmann, Amanda A Tutto, Zhongming Mou, Karl J Simin
Members of the Dickkopf (Dkk) family of Wnt antagonists interrupt Wnt-induced receptor assembly and participate in axial patterning and cell fate determination. One family member, DKK3, does not block Wnt receptor activation. Loss of Dkk3 expression in cancer is associated with hyperproliferation and dysregulated ß-catenin signaling, and ectopic expression of Dkk3 halts cancer growth. The molecular events mediating the DKK3-dependent arrest of ß-catenin-driven cell proliferation in cancer cells are unknown...
2017: PloS One
https://www.readbyqxmd.com/read/28710530/proteomic-characterisation-reveals-active-wnt-signalling-by-human-multipotent-stromal-cells-as-a-key-regulator-of-beta-cell-survival-and-proliferation
#16
Miljan Kuljanin, Gillian I Bell, Stephen E Sherman, Gilles A Lajoie, David A Hess
AIMS/HYPOTHESIS: Novel strategies to stimulate the expansion of beta cell mass in situ are warranted for diabetes therapy. The aim of this study was to elucidate the secretome of human bone marrow (BM)-derived multipotent stromal cells (MSCs) with documented islet regenerative paracrine function. We hypothesised that regenerative MSCs will secrete a unique combination of protein factors that augment islet regeneration. METHODS: Human BM-derived MSCs were examined for glucose-lowering capacity after transplantation into streptozotocin-treated NOD/severe combined immunodeficiency (SCID) mice and segregated into samples with regenerative (MSC(R)) vs nonregenerative (MSC(NR)) capacity...
July 14, 2017: Diabetologia
https://www.readbyqxmd.com/read/28701962/the-effect-of-calendula-officinalis-on-oxidative-stress-and-bone-loss-in-experimental-periodontitis
#17
Mariana Dos Reis Lima, Amanda P Lopes, Conceição Martins, Gerly A C Brito, Virgínia C Carneiro, Paula Goes
Periodontitis is associated with reduced antioxidant capacity and increased oxidative damage. Oxidative stress induces inflammation and bone loss contributing to the pathological progression of periodontal disease. Calendula officinalis (CLO) has demonstrated anti-inflammatory and anti-oxidant activities. Therefore, the aim of this study was to evaluate the effect of CLO on oxidative stress and bone loss in rats subjected to experimental periodontitis (EP). For this, 72 male Wistar rats were divided into groups: Naïve, Saline (SAL) and CLO...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28693271/expression-of-tumor-suppressor-reic-dkk-3-by-a-newly-improved-adenovirus-vector-with-insertion-of-a-htert-promoter-at-the-3-side-of-the-transgene
#18
Endy Widya Putranto, Rie Kinoshita, Masami Watanabe, Takuya Sadahira, Hitoshi Murata, Ken-Ichi Yamamoto, Junichiro Futami, Ken Kataoka, Yusuke Inoue, I Made Winarsa Ruma, I Wayan Sumardika, Chen Youyi, Miyoko Kubo, Yoshihiko Sakaguchi, Kenji Saito, Yasutomo Nasu, Hiromi Kumon, Nam-Ho Huh, Masakiyo Sakaguchi
Reduced expression in immortalized cells (REIC)/Dickkopf-3 (Dkk-3) overexpression, induced using an adenovirus (Ad)-REIC, has been revealed to have a dramatic therapeutic effect on multiple types of cancer. To achieve an improved therapeutic effect from Ad-REIC on cancer, our group previously developed an enhanced gene expression system, the C-TSC cassette [cytomegalovirus (CMV)-RU5' located upstream (C); another promoter unit composed of triple tandem promoters, human telomerase reverse transcriptase (hTERT), simian virus 40 and CMV, located downstream of the cDNA (TSC); plus a polyadenylation (polyA) signal]...
July 2017: Oncology Letters
https://www.readbyqxmd.com/read/28692808/modulating-wnt-signaling-rescues-palate-morphogenesis-in-pax9-mutant-mice
#19
C Li, Y Lan, R Krumlauf, R Jiang
Cleft palate is a common birth defect caused by disruption of palatogenesis during embryonic development. Although mutations disrupting components of the Wnt signaling pathway have been associated with cleft lip and palate in humans and mice, the mechanisms involving canonical Wnt signaling and its regulation in secondary palate development are not well understood. Here, we report that canonical Wnt signaling plays an important role in Pax9-mediated regulation of secondary palate development. We found that cleft palate pathogenesis in Pax9-deficient embryos is accompanied by significantly reduced expression of Axin2, an endogenous target of canonical Wnt signaling, in the developing palatal mesenchyme, particularly in the posterior regions of the palatal shelves...
July 1, 2017: Journal of Dental Research
https://www.readbyqxmd.com/read/28686724/dipeptidyl-peptidase-4-inhibitor-gemigliptin-protects-against-vascular-calcification-in-an-experimental-chronic-kidney-disease-and-vascular-smooth-muscle-cells
#20
Soon-Youn Choi, Hye-Myung Ryu, Eun-Joo Oh, Ji-Young Choi, Jang-Hee Cho, Chan-Duck Kim, Yong-Lim Kim, Sun-Hee Park
Although dipeptidyl peptidase-4 inhibitors, a class of antidiabetic drugs, have various pleiotropic effects, it remains undetermined whether gemigliptin has a beneficial effect on vascular calcification. Therefore, this study was performed to evaluate the effect of gemigliptin on vascular calcification in a rat model of adenine-induced chronic kidney disease and in cultured vascular smooth muscle cells. Gemigliptin attenuated calcification of abdominal aorta and expression of RUNX2 in adenine-induced chronic kidney disease rats...
2017: PloS One
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