0000000000349025

AUTHOR

Gediminas Kiudelis

showing 4 related works from this author

miR-20b and miR-451a Are Involved in Gastric Carcinogenesis through the PI3K/AKT/mTOR Signaling Pathway: Data from Gastric Cancer Patients, Cell Line…

2020

Gastric cancer (GC) is one of the most common and lethal gastrointestinal malignancies worldwide. Many studies have shown that development of GC and other malignancies is mainly driven by alterations of cellular signaling pathways. MicroRNAs (miRNAs) are small noncoding molecules that function as tumor-suppressors or oncogenes, playing an essential role in a variety of fundamental biological processes. In order to understand the functional relevance of miRNA dysregulation, studies analyzing their target genes are of major importance. Here, we chose to analyze two miRNAs, miR-20b and miR-451a, shown to be deregulated in many different malignancies, including GC. Deregulated expression of miR…

MaleCell signalingAntagonists & inhibitorsCaveolin 1ApoptosisCatalysisTuberous Sclerosis Complex 1 ProteinArticleInorganic Chemistrylcsh:ChemistryMicePhosphatidylinositol 3-KinasesStomach NeoplasmsCell Line TumormicroRNAPTENAnimalsHumans616.33-006.6 [udc]Physical and Theoretical ChemistryMolecular BiologyProtein kinase Blcsh:QH301-705.5SpectroscopyPI3K/AKT/mTOR pathwaybiologyTOR Serine-Threonine Kinasesgastric cancerOrganic ChemistryPTEN PhosphohydrolaseAntagomirsGeneral MedicineStomach neoplasms ; genetics ; MicroRNAs ; genetics ; Phosphoinositide-3 Kinase Inhibitors ; Phosphatidylinositol 3-Kinase ; metabolism ; Proto-Oncogene Proteins c-akt ; antagonists&inhibitors ; Proto-Oncogene Proteins c-akt ; metabolism ; TOR Serine-Threonine Kinases ; antagonists&inhibitors ; TOR Serine-Threonine Kinases ; metabolism ; Signal transduction ; drug effects ; Disease models animal ; MicemiR-451aComputer Science ApplicationsmicroRNAsDisease Models Animallcsh:Biology (General)lcsh:QD1-999biology.proteinCancer researchFemalemiR-20bSignal transductionCarrier ProteinsProto-Oncogene Proteins c-aktTXNIPSignal TransductionPI3K/AKT/mTOR signaling pathwayInternational Journal of Molecular Sciences
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Lack of association between gene polymorphisms of Angiotensin converting enzyme, Nod-like receptor 1, Toll-like receptor 4, FAS/FASL and the presence…

2011

Abstract Background Several polymorphisms of genes involved in the immunological recognition of Helicobacter pylori and regulating apoptosis and proliferation have been linked to gastric carcinogenesis, however reported data are partially conflicting. The aim of our study was to evaluate potential associations between the presence of gastric cancer (GC) and high risk atrophic gastritis (HRAG) and polymorphisms of genes encoding Angiotensin converting enzyme (ACE), Nod-like receptor 1 (NOD1), Toll-like receptor 4 (TLR4) and FAS/FASL. Methods Gene polymorphisms were analyzed in 574 subjects (GC: n = 114; HRAG: n = 222, controls: n = 238) of Caucasian origin. ACE I/D (rs4646994), NOD1 796G>…

AdultGastritis AtrophicMaleFas Ligand ProteinGenotypeAtrophic gastritisPeptidyl-Dipeptidase AWhite PeopleFas ligandHelicobacter InfectionsRisk FactorsStomach NeoplasmsNod1 Signaling Adaptor ProteinNOD1GenotypemedicineGeneticsHumansGenetics(clinical)fas ReceptorAllelesGenetics (clinical)AgedAged 80 and overPolymorphism GeneticHelicobacter pyloribiologyCancerAngiotensin-converting enzymeMiddle AgedHelicobacter pylorimedicine.diseasebiology.organism_classificationToll-Like Receptor 4ApoptosisImmunologybiology.proteinFemalePrecancerous ConditionsResearch ArticleBMC Medical Genetics
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Gastric plasma biomarkers and Operative Link for Gastritis Assessment gastritis stage

2011

Introduction The Operative Link for Gastritis Assessment (OLGA) staging system has been proposed as a histopathological reporting system of gastric atrophy. Noninvasive methods for indirect evaluation of gastric mucosal atrophy by biomarkers are also being introduced. Objectives To analyze gastric mucosal atrophy by biomarkers, pepsinogen I (PgI), pepsinogen II (PgII), PgI/PgII ratio, fasting gastrin-17 (G-17), stimulated gastrin-17 (sG-17), in relation to OLGA gastritis stage. Patients and methods Gastric biopsies were taken from 269 prospective patients referred for upper endoscopy because of dyspeptic problems and evaluated by two expert pathologists (D.J. and P.S.). Atrophy was assessed…

AdultGastritis AtrophicMalemedicine.medical_specialtyStage iiPlasma biomarkersGastroenterologyHelicobacter InfectionsAtrophyPepsinogen AInternal medicineGastrinsPepsinogen CHumansMedicineProspective StudiesStage (cooking)Prospective cohort studyAgedAged 80 and overHelicobacter pyloriHepatologybusiness.industryGeneral surgeryGastroenterologyMiddle Agedmedicine.diseaseFemaleGastritismedicine.symptombusinessGastric mucosal atrophyReporting systemBiomarkersEuropean Journal of Gastroenterology & Hepatology
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Lack of association between miR-27a, miR-146a, miR-196a-2, miR-492 and miR-608 gene polymorphisms and colorectal cancer

2014

Colorectal cancer (CRC) is one of the most common cancers worldwide with high mortality rates. MicroRNAs (miRNAs) have an established role in the development of different cancers. Single nucleotide polymorphisms (SNPs) in miRNA related genes were linked with various gastrointestinal malignancies. However, the data on association between miRNA SNPs and CRC development are inconsistent. The aim of the present study was to evaluate the association between miRNA-related gene polymorphisms (miR-27a, miR-146a, miR-196a-2, miR-492 and miR-608) and the presence of CRC in European population. Gene polymorphisms were analyzed in 621 subjects (controls: n = 428; CRC: n = 193). MiR-27a T>C (rs895819), …

MaleOncologymedicine.medical_specialtyGenotypeColorectal cancerSingle-nucleotide polymorphismLower riskPolymorphism Single NucleotideWhite PeopleArticleGene FrequencyRisk FactorsInternal medicinemicroRNAGenotypeOdds RatioHumansMedicineAlleleGeneAllelesAgedGeneticsMultidisciplinarybusiness.industryOdds ratioMiddle Agedmedicine.diseaseMicroRNAsCase-Control StudiesFemaleColorectal NeoplasmsbusinessScientific Reports
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