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https://www.readbyqxmd.com/read/28819779/curcuma-wenyujin-y-h-chen-et-c-ling-n-butyl-alcohol-extract-inhibits-ags-cell-helicobacter-pylori-caga-vaca-promoted-invasiveness-by-down-regulating-caudal-type-homeobox-transcription-factor-and-claudin-2-expression
#1
Hai-Feng Jin, Jin-Feng Dai, Li-Na Meng, Bin Lu
OBJECTIVE: To investigate the effects and possible mechanisms of action of Curcuma wenyujin Y. H. Chen et C. Ling n-Butyl alcohol extract (CWNAE) on repression of human gastric cancer (GC) AGS cell invasion induced by co-culturing with Helicobacter pylori (HP). METHODS: AGS cells were cultured with HP of positive or negative cytotoxin-associated gene A (CagA) and vacuolating cytotoxin gene A (VacA) expression (CagA+/- or VacA+/-) and divided into 5 group. Group A was cultured without HP as a control, Group B with HPCagA+VacA+, Group C with HPCagA-VacA-, Group D with HPCagA+VacA+ and CWNAE, and Group E with HPCagA-VacA- and CWNAE...
August 17, 2017: Chinese Journal of Integrative Medicine
https://www.readbyqxmd.com/read/28790837/rucaparib-the-past-present-and-future-of-a-newly-approved-parp-inhibitor-for-ovarian-cancer
#2
REVIEW
L E Dockery, C C Gunderson, K N Moore
Rucaparib camsylate (CO-338, AG-014699, PF-01367338) is a potent PARP-1, PARP-2, and PARP-3 inhibitor. Phase I and II studies demonstrated clinical efficacy in both BRCA-mutated (inclusive of germline and somatic) ovarian tumors and ovarian tumors with homologous recombination deficiency (HRD) loss of heterozygosity (LOH). Rucaparib has received the US Food and Drug Administration (FDA) approval for patients with deleterious BRCA mutation (germline and/or somatic)-associated advanced ovarian cancer who have been treated with two or more chemotherapies...
2017: OncoTargets and Therapy
https://www.readbyqxmd.com/read/28780754/fda-approval-of-parp-inhibitors-and-the-impact-on-genetic-counseling-and-genetic-testing-practices
#3
Kathryn M Buchtel, Kristen J Vogel Postula, Shelly Weiss, Carmen Williams, Mario Pineda, Scott M Weissman
In December 2014, the FDA approved olaparib, a poly(ADP-ribose) polymerase inhibitor (PARPi) for ovarian cancer patients who have failed three or more lines of chemotherapy and have a germline BRCA1/2 mutation identified through a companion diagnostic test (BRACAnalysis CDx™ (CDx™)) offered exclusively by Myriad Genetic Laboratories. This study explored the impact of PARPi/CDx™ on genetic counselors' (GCs) counseling and testing practices. One hundred twenty three GCs responded to an online survey regarding pre- and post-FDA approval referral patterns, testing strategies/influences, and anecdotal experiences with insurance coverage of PARPi for BRCA1/2 positive patients through a non-CDx™ platform...
August 5, 2017: Journal of Genetic Counseling
https://www.readbyqxmd.com/read/28780155/oxyresveratrol-improves-tight-junction-integrity-through-the-pkc-and-mapk-signaling-pathways-in-caco-2%C3%A2-cells
#4
HyunA Jo, Dahyun Hwang, Jeong-Keun Kim, Young-Hee Lim
Strengthening intestinal tight junctions (TJ) provides an effective barrier from the external environment and is important for recovery from inflammatory bowel disease. Oxyresveratrol (OXY), an isomer of hydroxylated resveratrol, is isolated from many plants. The aim of this study was to investigate the effect of OXY on intestinal TJ and to elucidate the mechanism underlying the OXY-mediated increase in TJ integrity in human intestinal Caco-2 cells. OXY-treated Caco-2 cell monolayers showed decreased monolayer permeability as evaluated by paracellular transport assay...
August 2, 2017: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/28751443/fda-approval-summary-rucaparib-for-the-treatment-of-patients-with-deleterious-brca-mutation-associated-advanced-ovarian-cancer
#5
Sanjeeve Balasubramaniam, Julia A Beaver, Sara Horton, Laura L Fernandes, Shenghui Tang, Hisani N Horne, Jinzhong Liu, Chao Liu, Sarah J Schrieber, Jingyu Yu, Pengfei Song, William Pierce, Kim J Robertson, Todd R Palmby, Haw-Jyh Chiu, Eunice Y Lee, Reena Philip, Robert Schuck, Rosane Charlab, Anamitro Banerjee, Xiao Hong Chen, Xing Wang, Kirsten B Goldberg, Rajeshwari Sridhara, Geoffrey Kim, Richard Pazdur
On December 19, 2016, the U.S. Food and Drug Administration granted accelerated approval to rucaparib (RUBRACA, Clovis Oncology, Inc.) for the treatment of patients with deleterious BRCA mutation (germline and/or somatic) associated advanced ovarian cancer who have been treated with two or more chemotherapies. FDA also approved the FoundationFocus™ CDx BRCA test (Foundation Medicine Inc.), the first next-generation sequencing-based companion diagnostic, for identifying patients with advanced ovarian cancer eligible for treatment with rucaparib based on detection of deleterious BRCA1 and/or BRCA2 mutations in tumor tissue...
July 27, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28711941/combination-of-cadherin-17-and-satb-homeobox-2-serves-as-potential-optimal-makers-for-the-differential-diagnosis-of-pulmonary-enteric-adenocarcinoma-and-metastatic-colorectal-adenocarcinoma
#6
Tingting Bian, Jinli Zhao, Jia Feng, Qing Zhang, Li Qian, Jian Liu, Daishan Jiang, Yifei Liu, Jianguo Zhang
BACKGROUND: Pulmonary enteric adenocarcinoma (PEAC), a rare type of non-small cell lung cancer, has similar histological and immunohistochemical morphology to colorectal adenocarcinoma. Cadherin-17 (CDH17) and SATB homeobox 2 (SATB2) immunoexpression have recently been demonstrated in colorectal adenocarcinoma. In this study, we evaluated the value of CDH17 and SATB2 in the diagnosis of pulmonary enteric adenocarcinoma and metastatic colorectal adenocarcinoma. METHODS: A total of 13 PEAC cases and 27 metastatic colorectal adenocarcinoma cases were enrolled in our cohort study...
June 28, 2017: Oncotarget
https://www.readbyqxmd.com/read/28700421/atypical-proliferative-borderline-serous-tumor-in-the-brain-a-case-report
#7
Deyin Xing, Erik G Jenson, Christopher A Zwick, Fausto J Rodriguez, Robert J Kurman
A 59-year-old woman with a remote history of invasive ductal carcinoma of the breast was found on a follow-up computed tomography scan of her brain to have a 1-cm lesion in the right frontal lobe in 2008. In the ensuing years, before her current admission, multiple imaging studies of the brain revealed that the lesion was stable and it was, therefore, interpreted as a small area of encephalomalacia related to a thrombosed cortical vein, a cavernoma, or treated metastatic breast cancer. In 2013, the patient underwent a bilateral salpingo-oophorectomy for ovarian tumors that were diagnosed as bilateral serous cystadenofibromas...
July 11, 2017: International Journal of Gynecological Pathology
https://www.readbyqxmd.com/read/28695962/gdf11-smad-signalling-and-cdx-proteins-cooperate-to-activate-the-hoxc8-early-enhancer-in-hepg2-cells
#8
Stephen J Gaunt
Developing anatomy along the head-tail axis of bilaterian embryos is specified, to a large extent, by the overlapping patterns of expression of the Hox genes. Hox gene enhancers respond to a variety of signals in order to regulate these discreet domains of expression. For mouse Hoxc8, the 399bp "early enhancer" plays a major role. Activation of this enhancer is now examined using luciferase expression constructs transfected into HepG2 cells. Constructs are activated by the combined actions of Gdf11/Smad and Cdx protein signalling pathways, both of which are functional in early embryos...
2017: International Journal of Developmental Biology
https://www.readbyqxmd.com/read/28694783/mpa-modulates-tight-junctions-permeability-via-midkine-pi3k-pathway-in-caco-2-cells-a-possible-mechanism-of-leak-flux-diarrhea-in-organ-transplanted-patients
#9
Niamat Khan, Lutz Binder, D V Krishna Pantakani, Abdul R Asif
Mycophenolic acid (MPA) is prescribed to prevent allograft rejection in organ transplanted patients. However, its use is sporadically linked to leak flux diarrhea and other gastrointestinal (GI) disturbances in around 75% of patients through yet unknown mechanisms. Recently, we identified Midkine as a modulator of tight junctions (TJs) permeability in MPA treated Caco-2 monolayer. In the present study, we investigated the possible involvement of Midkine dependent PI3K pathway in alteration of TJs under MPA treatment...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28599482/an-unusual-case-of-pseudomyxoma-peritonei-associated-with-synchronous-primary-mucinous-tumors-of-the-ovary-and-appendix-a-case-report
#10
Dong Soo Suh, Yong Jung Song, Byung Su Kwon, Sul Lee, Nam Kyung Lee, Kyung Un Choi, Ki Hyung Kim
Pseudomyxoma peritonei (PMP) is a rare disease that usually originates from mucinous neoplasms of the appendix and, less commonly, from extra-appendiceal tumors, but it may also be caused by synchronous primary mucinous tumors of the ovary and appendix. The current study discusses the case of a 73-year-old female who presented with progressively worsening indigestion and abdominal distension. Magnetic resonance imaging of the pelvis revealed a large cystic mass with a thin enhancing septa arising from the right ovary and ascites with scalloping of the liver surface...
June 2017: Oncology Letters
https://www.readbyqxmd.com/read/28593183/columnar-metaplasia-in-three-types-of-surgical-mouse-models-of-esophageal-reflux
#11
Fabio Terabe, Susumu Aikou, Junko Aida, Nobutake Yamamichi, Michio Kaminishi, Kaiyo Takubo, Yasuyuki Seto, Sachiyo Nomura
BACKGROUND AND AIMS: Esophageal adenocarcinoma develops in the setting of gastroesophageal reflux and columnar metaplasia in distal esophagus. Columnar metaplasia arising in gastroesophageal reflux models has developed in rat; however, gastroesophageal reflux models in mice have not been well-characterized. METHODS: One hundred thirty-five C57Bl/6J mice aged 8 weeks old were divided into the following operations: esophagogastrojejunostomy (side-to-side) (EGJ), esophageal separation and esophagojejunostomy (end-to-side) (EJ), and EJ and gastrectomy (end-to-side) (EJ/TG)...
July 2017: Cellular and Molecular Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/28585959/functionalized-self-assembly-of-colloidal-cdx-x-s-se-nanorods-on-solid-substrates-for-device-applications
#12
REVIEW
Fen Qiao, Xuewan Wang, Qian Wang, Gang He, Yi Xie
In comparison to randomly oriented nanorods (NRs), self-assembly of the colloidal CdX (X = S, Se) NRs into well-organized large-scale structures results in unique collective properties. Moreover, the anisotropic structural features of self-assemblies preserved from colloidal CdX (X = S, Se) NRs have opened up exciting opportunities in the field of nanotechnology applications. We present the latest strategies for the self-assembly of colloidal NRs on solid substrates, and further focus on the self-assembled NRs for applications in devices...
June 6, 2017: Nanoscale
https://www.readbyqxmd.com/read/28583430/the-egfr-variant-iii-mutant-as-a-target-for-immunotherapy-of-glioblastoma-multiforme
#13
REVIEW
Dimitry A Chistiakov, Ivan V Chekhonin, Vladimir P Chekhonin
In epithelial tumors, the epidermal growth factor receptor (EGFR) controls key signaling pathways responsible for growth, proliferation, migration, and survival of tumor cells. The epidermal growth factor receptor variant III (EGFRvIII) is the most common EGFR mutation that occurs in up to 30% of high-grade gliomas especially glioblastoma multiforme (GBM). EGFRvIII arises from the deletion of exon 2-7 that leads to the formation of the constitutively activated mutant receptor incapable of binding any known ligand...
September 5, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28556260/metal-ligand-complex-induced-ultrafast-charge-carrier-relaxation-and-charge-transfer-dynamics-in-cdx-x-s-se-te-quantum-dots-sensitized-with-nitrocatechol
#14
Pallavi Singhal, Partha Maity, Sanjay K Jha, Hirendra N Ghosh
The present work describes the effect of interfacial complex formation on charge carrier dynamics in CdX (X=S, Se, Te) quantum dots (QDs) sensitized nitro catechol (NCAT). To compare experiments were also carried out with catechol (CAT) where no such complexation was observed. Time-resolved emission studies suggest faster charge separation in CdS(Se)/NCAT system as compared to CdS(Se)/CAT although change in Gibbs free energy for hole transfer is less in former as compared to later. This suggests that complex formation favours charge separation...
May 29, 2017: Chemistry: a European Journal
https://www.readbyqxmd.com/read/28451462/pulmonary-adenocarcinoma-with-mucin-production-modulates-phenotype-according-to-common-genetic-traits-a-reappraisal-of-mucinous-adenocarcinoma-and-colloid-adenocarcinoma
#15
Angelica Sonzogni, Fabrizio Bianchi, Alessandra Fabbri, Mara Cossa, Giulio Rossi, Alberto Cavazza, Elena Tamborini, Federica Perrone, Adele Busico, Iolanda Capone, Benedetta Picciani, Barbara Valeri, Ugo Pastorino, Giuseppe Pelosi
Whether invasive mucinous adenocarcinoma (IMA) and colloid adenocarcinoma (ICA) of the lung represent separate tumour entities, or simply lie within a spectrum of phenotypic variability, is worth investigating. Fifteen ICA, 12 IMA, 9 ALK-rearranged adenocarcinomas (ALKA), 8 non-mucinous KRAS-mutated adenocarcinomas (KRASA) and 9 mucinous breast adenocarcinomas (MBA) were assessed by immunohistochemistry for alveolar (TTF1, cytoplasmic MUC1), intestinal (CDX-2, MUC2), gastric (membrane MUC1, MUC6), bronchial (MUC5AC), mesenchymal (vimentin), neuroendocrine (chromogranin A, synaptophysin), sex steroid hormone-related (oestrogen and progesterone receptors), pan-mucinous (HNF4A) and pan-epithelial (keratin 7) lineage biomarkers and by targeted next generation sequencing (TNGS) for 50 recurrently altered cancer genes...
April 2017: Journal of Pathology. Clinical Research
https://www.readbyqxmd.com/read/28446629/vitamin-d-receptor-and-megalin-gene-polymorphisms-are-associated-with-longitudinal-cognitive-change-among-african-american-urban-adults
#16
May A Beydoun, Salman M Tajuddin, Greg A Dore, Jose-Atilio Canas, Hind A Beydoun, Michele K Evans, Alan B Zonderman
Background: The link between longitudinal cognitive change and polymorphisms in the vitamin D receptor (VDR) and MEGALIN [or LDL receptor-related protein 2 (LRP2)] genes remains unclear, particularly among African-American (AA) adults.Objectives: We aimed to evaluate associations of single nucleotide polymorphisms (SNPs) for VDR [rs11568820 (Cdx-2:T/C), rs1544410 (BsmI:G/A), rs7975232 (ApaI:A/C), rs731236 (TaqI:G/A)] and LRP2 [rs3755166:G/A,rs2075252:C/T, rs2228171:C/T] genes with longitudinal cognitive performance change in various domains of cognition...
June 2017: Journal of Nutrition
https://www.readbyqxmd.com/read/28442585/next-generation-sequencing-analysis-and-algorithms-for-pdx-and-cdx-models
#17
Garima Khandelwal, María Romina Girotti, Christopher Smowton, Sam Taylor, Christopher Wirth, Marek Dynowski, Kristopher K Frese, Ged Brady, Caroline Dive, Richard Marais, Crispin Miller
Patient-derived xenograft (PDX) and circulating tumor cell-derived explant (CDX) models are powerful methods for the study of human disease. In cancer research, these methods have been applied to multiple questions, including the study of metastatic progression, genetic evolution, and therapeutic drug responses. As PDX and CDX models can recapitulate the highly heterogeneous characteristics of a patient tumor, as well as their response to chemotherapy, there is considerable interest in combining them with next-generation sequencing to monitor the genomic, transcriptional, and epigenetic changes that accompany oncogenesis...
April 25, 2017: Molecular Cancer Research: MCR
https://www.readbyqxmd.com/read/28421869/alk-protein-expression-in-pulmonary-adenocarcinoma-of-tunisian-patients
#18
Amira Toumi Arfaoui, Ahlem Blel, Raoudha Aloui, Ghaya Fatnassi, Jihane Ben Ammar, Nadia Znaidi, Yosra Zidi, Mohammed Sadok Boudaya, Hichem Aouina, Soumaya Rammeh Rommani
BACKGROUND: It is now necessary to determine ALK status in order to use targeted therapy. AIM: herein, we assess immunohistochemical profile of ALK protein in a series of Tunisian patients with pulmonary adenocarcinoma. MATERIALS AND METHODS: ALK protein expression was studied applying the D5F3 antibody with a fully automated Ventana CDx technique on a series of 19 patients. RESULTS: Positive ALK expression was found in one case (5...
April 19, 2017: Journal of Immunoassay & Immunochemistry
https://www.readbyqxmd.com/read/28408465/human-definitive-hematopoietic-specification-from-pluripotent-stem-cells-is-regulated-by-mesodermal-expression-of-cdx4
#19
J Philip Creamer, Carissa Dege, Qihao Ren, Jolie T K Ho, Mark C Valentine, Todd E Druley, Christopher M Sturgeon
The generation of hematopoietic stem cells from human pluripotent stem cells (hPSCs) is a major goal for regenerative medicine. Achieving this goal is complicated by our incomplete understanding of the mechanism regulating definitive hematopoietic specification. We used our stage-specific hPSC differentiation method to obtain and identify, via CD235a expression, mesoderm harboring exclusively primitive or definitive hematopoietic potential to understand the genetic regulation of definitive hematopoietic specification...
June 1, 2017: Blood
https://www.readbyqxmd.com/read/28341657/effect-of-fixation-time-on-breast-biomarker-expression-a-controlled-study-using-cell-line-derived-xenografted-cdx-tumours
#20
K R Kao, T Hasan, A Baptista, T Truong, L Gai, A C Smith, S Li, P Gonzales, K Voisey, P Eriwvo, J Power, N Denic
AIMS: Altering the length of time specimens are placed in fixative without compromising analytical testing accuracy is a continuous challenge in the anatomical pathology lab. The aim of this study was to determine under controlled conditions the effects of variable fixation time on breast biomarker expression in human breast cancer cell line-derived xenografted (CDX) tumours. METHODS: CDX tumours using strong oestrogen receptor (ER)-positive, Her2-negative (MCF7) and weak ER-positive, Her2 equivocal (T47D) breast cancer cell lines were fixed for various times ranging from 1 to 336 hours in 10% neutral buffered formalin...
March 23, 2017: Journal of Clinical Pathology
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