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Cheol Keun Park, Ji Soo Park, Hyo Song Kim, Sun Young Rha, Woo Jin Hyung, Jae-Ho Cheong, Sung Hoon Noh, Sang Kil Lee, Yong Chan Lee, Yong-Min Huh, Hyunki Kim
Although targeted therapy for receptor tyrosine kinases (RTKs) of advanced gastric cancers (AGCs) has been in the spotlight, guidelines for the identification of RTK-amplified gastric cancers (RA-GCs) have not been established. In this study, we investigate clinicopathologic characteristics of RA-GCs and propose a screening algorithm for their identification. We performed immunohistochemistry (IHC) for MLH1, MSH2, PMS2, MSH6, key RTKs (EGFR, HER2, MET), and p53, in situ hybridization for Epstein-Barr virus encoding RNA, and silver in situ hybridization (SISH) for EGFR, HER2, and MET using tissue microarrays of 993 AGCs...
September 27, 2016: Oncotarget
Jianjun Liu, Mingxue Su, Jing Wang, Gan Zhang, Jing Zhou, Anqing Zhang, Zixue Ren, Xucai Zheng, Shikai Hong, Shengying Wang, Rongxin Zhang
Although local advanced gastric cancer (AGC) could benefit from neoadjuvant radiotherapy (NRT), there are few studies evaluating patients' survival after NRT. In current study, we aimed to investigate the value of prognostic factors in AGC patients after NRT and to evaluate whether post-therapy pathological characteristics were predictive factors in these patients. We retrospectively analyzed AGC patients who underwent NRT from Surveillance, Epidemiology, and End Results (SEER) Database. The patients' clinical and post-therapy pathological characteristics were analyzed...
October 11, 2016: Oncotarget
Chen Weidong, Xia Lijun
OBJECTIVE: To observe the short-term efficacy and safety of S-1 combined with cisplatin (DDP) chemotherapy for advanced gastric cancer (AGC). MATERIALS AND METHODS: Sixty-six patients were diagnosed with AGC and were admitted to our department from February 2012 to January 2015 and retrospectively analyzed. Of these patients, 31 (experimental group) underwent S-1 combined with DDP chemotherapy and 35 received oxaliplatin combined with tegafur and calcium folinate chemotherapy regimen (control group)...
October 2016: Journal of Cancer Research and Therapeutics
Xin Ji, Tao Fu, Zhao-De Bu, Ji Zhang, Xiao-Jiang Wu, Xiang-Long Zong, Zi-Yu Jia, Biao Fan, Yi-Nan Zhang, Jia-Fu Ji
BACKGROUND: Surgery for advanced gastric cancer (AGC) often includes dissection of splenic hilar lymph nodes (SHLNs). This study compared the safety and effectiveness of different approaches to SHLN dissection for upper- and/or middle-third AGC. METHODS: We retrospectively compared and analyzed clinicopathologic and follow-up data from a prospectively collected database at the Peking University Cancer Hospital. Patients were divided into three groups: in situ spleen-preserved, ex situ spleen-preserved and splenectomy...
October 3, 2016: BMC Cancer
Wei Wei, Shaohua Shu, Wenjun Zhu, Ying Xiong, Fang Peng
Wolfiporia cocos is an edible and medicinal fungus that grows in association with pine trees, and its dried sclerotium, known as Fuling in China, has been used as a traditional medicine in East Asian countries for centuries. Nearly 10% of the traditional Chinese medicinal preparations contain W. cocos. Currently, the commercial production of Fuling is limited because of the lack of pine-based substrate and paucity of knowledge about the sclerotial development of the fungus. Since protein kinase (PKs) play significant roles in the regulation of growth, development, reproduction, and environmental responses in filamentous fungi, the kinome of W...
2016: Frontiers in Microbiology
C Jabri, H Sbei, N Zitouna, N Trifi-Farah, A Zoghlami Khelil
Medicago ciliaris L., considered as a valuable genetic resource, is a good candidate for the improvement of marginal or degraded lands with low fertility or high salinity. In this study, the pheno-morphological and genetic diversity were investigated in 14 Tunisian populations of M. ciliaris for the first time. Fourteen morphological traits showed significant differentiation between populations and high levels of diversity. Two amplified fragment length polymorphism primer combinations (E-AGC/M-CAA; E-AAG/M-CTG) were analyzed using an automated capillary electrophoresis system...
August 26, 2016: Genetics and Molecular Research: GMR
Neha S Shah, S Y Grace Lin, Pennan M Barry, Yi-Ning Cheng, Gisela Schecter, Ed Desmond
Background.  Data from international settings suggest that isolates of Mycobacterium tuberculosis with rpoB mutations testing phenotypically susceptible to rifampin (RIF) may have clinical significance. We analyzed treatment outcomes of California patients with discordant molecular-phenotypic RIF results. Methods.  We included tuberculosis (TB) patients, during 2003-2013, whose specimens tested RIF susceptible phenotypically but had a rpoB mutation determined by pyrosequencing. Demographic data were abstracted from the California TB registry...
September 2016: Open Forum Infectious Diseases
Kohei Shitara
Differences in clinical outcomes between advanced gastric cancer (AGC) in Asia and that in other regions have been discussed for a long time, although no major significant differences in molecular profiles have been reported. The anti-human epidermal growth factor receptor 2 antibody trastuzumab and the anti-vascular endothelial growth factor receptor 2 monoclonal antibody ramucirumab were both approved as a treatment for AGC on the basis of global phase 3 trials including Japan. In recent years, others new agents for treatment of AGC have been investigated in global or Asian studies...
October 3, 2016: Gastric Cancer
Kohei Shitara, Atsushi Ohtsu
In recent years, various new agents have been investigated for the treatment of advanced gastric cancer (AGC). The anti-HER2 antibody trastuzumab has been shown to prolong the overall survival of patients with HER2-positive AGC and has become a standard treatment. However, lapatinib, or ado-trastuzumab emtansine (T-DM1), did not show survival benefit in AGC, although it has shown remarkable efficacy for HER2-positive breast cancer. The efficacy of the anti-vascular endothelial growth factor receptor monoclonal antibody ramucirumab for pretreated gastric cancer is a milestone for antiangiogenic therapy for AGC...
October 2016: Journal of the National Comprehensive Cancer Network: JNCCN
Jörg O Schulze, Giorgio Saladino, Katrien Busschots, Sonja Neimanis, Evelyn Süß, Dalibor Odadzic, Stefan Zeuzem, Valerie Hindie, Amanda K Herbrand, María-Natalia Lisa, Pedro M Alzari, Francesco L Gervasio, Ricardo M Biondi
Allostery is a phenomenon observed in many proteins where binding of a macromolecular partner or a small-molecule ligand at one location leads to specific perturbations at a site not in direct contact with the region where the binding occurs. The list of proteins under allosteric regulation includes AGC protein kinases. AGC kinases have a conserved allosteric site, the phosphoinositide-dependent protein kinase 1 (PDK1)-interacting fragment (PIF) pocket, which regulates protein ATP-binding, activity, and interaction with substrates...
October 20, 2016: Cell Chemical Biology
Atieh Hakimi, Maryam Zolfaghari, Karim Sorkheh
Glycyrrhiza glabra is an endangered and national-protected medicinal plant species distributed in semi-arid and arid areas of South of Iran. This study addresses the genetic diversity and relationship between populations in different habitats by amplified fragment length polymorphism (AFLP). The plant materials consisted of 90 individuals from nine different populating areas of Dezful, Ramhormoz, Ahvaz, Abadan, Khorramshahr, Behbahan, Haft-tapeh, Andimeshk, and Shushtar. Twenty-three AFLP primer combinations generated a total of 1019 bands with 94...
September 28, 2016: Biochemical Genetics
Maheer Faden, Mari Holm, Elizabeth Allred, Raina Fichorova, Olaf Dammann, Alan Leviton
BACKGROUND: To date, studies of the relationship between antenatal glucocorticoids (AGC) and neonatal inflammation in preterm newborns have been largely limited to umbilical cord blood specimens. AIM: To explore the association between exposure to antenatal glucocorticoids and concentrations of inflammation-related proteins in whole blood collected from very preterm newborns at multiple times during the first postnatal month. METHODS: We measured the protein concentrations on postnatal day 1 (N=1118), day 7 (N=1138), day 14 (N=1030), day 21 (N=936) and day 28 (N=877) from infants born before the 28th week of gestation and explored the relationship between antenatal steroid receipt and protein concentrations in the highest and lowest quartiles...
December 2016: Cytokine
Lluís Cordón-Barris, Sònia Pascual-Guiral, Shaobin Yang, Lydia Giménez-Llort, Silvia Lope-Piedrafita, Carlota Niemeyer, Enrique Claro, Jose M Lizcano, Jose R Bayascas
The phosphoinositide 3-kinase (PI 3-kinase)/Akt signaling pathway plays essential roles during neuronal development. The 3-phosphoinositide-dependent protein kinase 1 (PDK1) coordinates the PI 3-kinase signals by activating twenty three kinases of the AGC family including Akt. Phosphorylation of a conserved docking site in the substrate is a requisite for PDK1 to recognize, phosphorylate and activate most of these kinases, with the exception of Akt. We exploited this differential mechanism of regulation by generating neuronal-specific conditional knock-in mice expressing the mutant form of PDK1 L155E in which the substrate-docking site binding motif, termed the PIF-pocket, was disrupted...
September 19, 2016: Molecular and Cellular Biology
Lance D Hoffman, Hue-Tsi Wu
BACKGROUND: Atypical glandular cells (AGC) identified on Pap tests may be markers for potentially significant pathology. OBJECTIVES: Primarily, to correlate AGC findings at Groote Schuur Hospital (GSH, Cape Town, South Africa) with subsequent histological investigations and attempt to identify predictors of pathology relevant to the clinical management of women with a cytological diagnosis of AGC. Secondly, to compare the GSH data with data from similar international studies...
August 4, 2016: South African Medical Journal, Suid-Afrikaanse Tydskrif Vir Geneeskunde
Paula Jiménez-Fonseca, Alberto Carmona-Bayonas, Maria Luisa Sánchez Lorenzo, Javier Gallego Plazas, Ana Custodio, Raquel Hernández, Marcelo Garrido, Teresa García, Isabel Echavarría, Juana María Cano, Alberto Rodríguez Palomo, Monserrat Mangas, Ismael Macías Declara, Avinash Ramchandani, Laura Visa, Antonio Viudez, Elvira Buxó, Asunción Díaz-Serrano, Carlos López, Aitor Azkarate, Federico Longo, Eduardo Castañón, Rodrigo Sánchez Bayona, Paola Pimentel, Maria Luisa Limón, Paula Cerdá, Renata Álvarez Llosa, Raquel Serrano, Maria Pilar Felices Lobera, María Alsina, Alicia Hurtado Nuño, Carlos Gómez-Martin
BACKGROUND: Trastuzumab significantly improves overall survival (OS) when added to cisplatin and fluoropyrimidine as a treatment for HER2-positive advanced gastric cancers (AGC). The aim of this study was to evaluate the impact of the gradual implementation of HER2 testing on patient prognosis in a national registry of AGC. METHODS: This Spanish National Cancer Registry includes cases who were consecutively recruited at 28 centers from January 2008 to January 2016...
September 6, 2016: Gastric Cancer
Yong-Zhen Huang, Jing-Jing Li, Chun-Lei Zhang, Xing-Tang Fang, Xian-Yong Lan, Xing-Lei Qi, Hong Chen
I-mfa (inhibitor of the MyoD family a) is a transcription modulator that binds to MyoD family members and inhibits their transcriptional activities. It is highly expressed in the sclerotome and plays an important role in the patterning of the somite early in development. In this study, the polymorphisms of the bovine I-mfa gene were detected by polymerase chain reaction-single stranded conformational polymorphism (PCR-SSCP) and DNA pool sequencing methods in 541 individuals from three Chinese cattle breeds...
October 2016: Animal Biotechnology
Federico Coccolini, Andrea Celotti, Marco Ceresoli, Giulia Montori, Michele Marini, Fausto Catena, Luca Ansaloni
BACKGROUND: The possibility to enlarge criteria for intra-peritoneal chemotherapy (IPC) to all patients at high-risk to develop peritoneal carcinosis (i.e., with serosal invasion) is still discussed. METHODS: Retrospective case-control study. Three-groups: advanced-gastric-cancer (AGC) (pT4) without proven carcinosis: prophylactic group (PG), those with PC: treatment group (TG), AGC (pT3-pT4) operated without hyperthermic intraperitoneal chemotherapy (HIPEC), surgery alone group (SG T3, SG T4)...
August 2016: Journal of Gastrointestinal Oncology
Anna M Kaczmarek, Piotr W Alvarez Porebski, Tineke Mortier, Frederic Lynen, Rik Van Deun, Kristof Van Hecke
A complete series of lanthanide Schiff base salen-type complexes were prepared with trivalent lanthanide ions (Ln(3+)) and the N,N'-bis-(3-methoxysalicylidene)ethylene-1,2-diamine ligand (Ln(3+)=La(3+), Ce(3+), Pr(3+), Nd(3+), Sm(3+), Eu(3+), Gd(3+), Tb(3+), Dy(3+), Ho(3+), Er(3+), Tm(3+), Yb(3+), Lu(3+)). Three unique crystal structures of La(3+) and Pr(3+)N,N'-bis-(3-methoxysalicylidene)ethylene-1,2-diamine complexes, with the La(3+) complex prepared in two different synthetic approaches, are reported, namely a dimeric [La(H2L)(NO3)3]2 (H2L=N,N'-bis-(3-methoxysalicylidene)ethylene-1,2-diamine) complex, an asymmetric two-centered [La2(H2L)2(NO3)6] complex and a discrete mononuclear [Pr(H2L)(NO3)2(H2O)2] complex...
August 5, 2016: Journal of Inorganic Biochemistry
John M Hourihan, Lorenza E Moronetti Mazzeo, L Paulette Fernández-Cárdenas, T Keith Blackwell
Emerging evidence suggests that many proteins may be regulated through cysteine modification, but the extent and functions of this signaling remain largely unclear. The endoplasmic reticulum (ER) transmembrane protein IRE-1 maintains ER homeostasis by initiating the unfolded protein response (UPR(ER)). Here we show in C. elegans and human cells that IRE-1 has a distinct redox-regulated function in cytoplasmic homeostasis. Reactive oxygen species (ROS) that are generated at the ER or by mitochondria sulfenylate a cysteine within the IRE-1 kinase activation loop...
August 18, 2016: Molecular Cell
Patrícia Alves de Castro, Thaila Fernanda Dos Reis, Stephen K Dolan, Adriana Oliveira Manfiolli, Neil Andrew Brown, Gary W Jones, Sean Doyle, Diego M Riaño-Pachón, Fábio Márcio Squina, Camila Caldana, Ashutosh Singh, Maurizio Del Poeta, Daisuke Hagiwara, Rafael Silva-Rocha, Gustavo H Goldman
The serine-threonine kinase TOR, the Target of Rapamycin, is an important regulator of nutrient, energy and stress signaling in eukaryotes. Sch9, a Ser/Thr kinase of AGC family (the cAMP-dependent PKA, cGMP- dependent protein kinase G and phospholipid-dependent protein kinase C family), is a substrate of TOR. Here, we characterized the fungal opportunistic pathogen Aspergillus fumigatus Sch9 homologue (SchA). The schA null mutant was sensitive to rapamycin, high concentrations of calcium, hyperosmotic stress and SchA was involved in iron metabolism...
August 19, 2016: Molecular Microbiology
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