Search results for " SMAD"

showing 10 items of 28 documents

Alternative Splice Forms of CYLD Mediate Ubiquitination of SMAD7 to Prevent TGFB Signaling and Promote Colitis

2018

Background & Aims The CYLD lysine 63 deubiquitinase gene (CYLD) encodes tumor suppressor protein that is mutated in familial cylindromatosus, and variants have been associated with Crohn disease (CD). Splice forms of CYLD that lack exons 7 and 8 regulate transcription factors and functions of immune cells. We examined the expression of splice forms of CYLD in colon tissues from patients with CD and their effects in mice. Methods We performed immunohistochemical analyses of colon tissues from patients with untreated CD and patients without inflammatory bowel diseases (controls). We obtained mice that expressed splice forms of CYLD (sCYLD mice) without or with SMAD7 (sCYLD/SMAD7 mice) from tr…

0301 basic medicineTranscription FactorBiopsyInbred C57BLTransgenicImmune RegulationSettore MED/12MiceRandom Allocation0302 clinical medicineCrohn DiseaseReference ValuesNeedleIntestinal Mucosaintegumentary systemChemistryBiopsy NeedleGastroenterologyT helper cellFlow CytometryPost-translational ModificationImmunohistochemistryDeubiquitinating Enzyme CYLDCysteine Endopeptidasesmedicine.anatomical_structure030211 gastroenterology & hepatologyTumor necrosis factor alphaSignal TransductionGenetically modified mouseRegulatory T cellTransgeneMice TransgenicSmad7 ProteinTransforming Growth Factor beta103 medical and health sciencesImmune systemmedicineAnimalsHumansCytokine SignalingHepatologyAnimalHEK 293 cellsUbiquitinationMolecular biologyMice Inbred C57BLDisease Models Animal030104 developmental biologyDisease ModelsCytokine Signaling; Immune Regulation; Post-translational Modification; Transcription Factor; Biopsy Needle; Crohn Disease; Cysteine Endopeptidases; Deubiquitinating Enzyme CYLD; Disease Models Animal; Flow Cytometry; Immunohistochemistry; Intestinal Mucosa; Mice Inbred C57BL; Mice Transgenic; Random Allocation; Reference Values; Signal Transduction; Smad7 Protein; Transforming Growth Factor beta1; UbiquitinationTransforming growth factorGastroenterology
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Genotyping strategy of SMAD-3 rs3825977 gene variant for a differential management of ascending aorta aneurysm in women people: Gender oriented diagn…

2020

Abstract Background and objectives The research of opportune strategies for facilitating the management of complex pathologies, such as ascending aorta aneurysm (AAA), currently represents the principal object of clinicians, clinical pathologists included. Herein, we propose genotyping of gene variants related to TGF-β pathway as useful strategy to improve the complex AAA management, exclusively based on imaging evaluations. Precisely, we investigated four functional SNPs in SMAD and VEGF genes, encoding molecules able to modulate functions and cross-talks of TGF-β pathway. Populations and methods Our study included 92 individuals (70 men (76%) and 22 (24%) women; mean age: 71.4 ± 2.6 years…

0301 basic medicinetransforming growth factorSNPs of SMAD and VEGF genesSMADBioinformaticsAscending aorta aneurysm (AAA)03 medical and health sciences0302 clinical medicineImmune systemmedicine.arteryGenotypeGeneticsmedicineGenotypingGeneGenetics (clinical)aorta aneurysmMetalloproteinaseAortaFemale peoplebusiness.industryGenetic variantsaorta aneurysm; transforming growth factorSettore MED/23030104 developmental biology030220 oncology & carcinogenesisGender medicinebusinessGenotyping strategy
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Staru terapijas pacientu ar galvas smadzeņu audzējiem pozicionēšanas precizitātes novērtējums, izmantojot ExacTrac sistēmu

2017

Bakalaura darba tēma – Staru terapijas pacientu ar galvas smadzeņu audzējiem pozicionēšanas precizitātes novērtējums, izmantojot Exactrac® sistēmu. Tēmas aktualitāti nosaka onkoloģisko saslimstību pieaugums un pieejamo staru terapijas tehnoloģiju lietderība ikdienas ārstēšanas kvalitātes uzlabošanā. Darba mērķis ir noteikt faktorus, kas ietekmē pacientu pozicionēšanas precizitāti un noskaidrot to cēloņus. Pētniecības uzdevumi ir veikt datu protokolēšanu, veikt datu apstrādi un analīzi, izvirzīt secinājumus, analizēt literatūras avotus un salīdzināt to rezultātus ar pētījumā iegūtajiem. Izvirzīta hipotēze – pozicionēšanu precizitāti ietekmē dažādas etioloģijas faktoru kopums. Pētniecības ins…

ExacTrac sistēmapacienta pozicionēšanagalvas smadzeņu audzējistaru terapijaMedicīnapozicionēšanas precizitāte
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Stepes strupastu galvas smadzeņu, galvaskausu un apakšžokļu morfometriskā mainība guentheri grupā (Arvicolinae, Sumeriomys apakšģints) ģeogrāfiskās i…

2021

Šī darba mērķis ir galvas smadzeņu, galvaskausu un apakšžokļu diverģences izpēte pēc to ģeometriskās formas, pieciem strupastu “guentheri” grupas taksoniem ar ģeometriskās morfometrijas metodes izmantošanu. Papildus bija veikta smadzeņu lineārā morfometrija. Iegūtie dati rāda, ka dzimuma faktors neietekmē izpētīto taksonu galvas smadzeņu, galvaskausu un apakšžokļu formu, kā arī galvas smadzeņu lineāros parametrus. Starp divām sugām tiek atzīmētas ievērojamas atšķirības pēc galvas smadzeņu formas (puslodes, smadzenītes un ožas sīpoli) un lineārajiem parametriem (smadzeņu augstums, platums un garums). Atšķirības tiek parādītas arī galvaskausa un apakšžokļu formā. Katram taksonam ir savas īpaš…

Galvas smadzenesMicrotus guentheriĢeometriskā morfometrijaBioloģijaGalvaskaussApakšžoklis
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Stepes strupastu galvas smadzeņu morfometriskā mainība guentheri grupā (Arvicolinae, Sumeriomys apakšģints)

2019

Šī darba mērķis ir galvas smadzeņu diverģences izpēte pēc to lieluma un ģeometriskās formas trim strupastu “guentheri” grupas taksoniem ar lineārās un ģeometriskās morfometrijas metožu izmantošanu. Iegūtie dati rāda, ka dzimuma faktors neietekmē izpētīto taksonu smadzeņu lineāros parametrus un formu, kas liecina par dzimuma atlases vāju iedarbību uz morfoloģisko pielāgojumu veidošanos un smadzeņu uzbūves mainību. Tiek atrastas būtiskas atšķirības strupastu galvas smadzeņu absolūtā un relatīvā masā (cefalizācijas indekss): vismazākā tā tiek atzīmēta M. guentheri, lielāka M. hartingi, bet savā starpā M. h. hartingi un M. h. lydius populācijas ievērojami diverģē. Visi lineārie mērījumi trim ta…

Galvas smadzenesMicrotus guentheriĢeometriskā morfometrijaM. hartingi lydiusLineārā morfometrijaBioloģija
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Zilweka nerwi, viņu buhwe un normalās darbibas [Cilvēka nervi, viņu būve un normālās darbības]

1910

Galvas smadzenesNervu sistēma:MEDICINE::Physiology and pharmacology::Physiology::Neurobiology [Research Subject Categories]:MEDICINE::Physiology and pharmacology::Physiology::Neurophysiology [Research Subject Categories]NeiroanatomijaNeirofizioloģijaNeironi
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A BMP7 Variant Inhibits Tumor Angiogenesis In Vitro and In Vivo through Direct Modulation of Endothelial Cell Biology

2015

Bone morphogenetic proteins (BMPs), members of the TGF-β superfamily, have numerous biological activities including control of growth, differentiation, and vascular development. Using an in vitro co-culture endothelial cord formation assay, we investigated the role of a BMP7 variant (BMP7v) in VEGF, bFGF, and tumor-driven angiogenesis. BMP7v treatment led to disruption of neo-endothelial cord formation and regression of existing VEGF and bFGF cords in vitro. Using a series of tumor cell models capable of driving angiogenesis in vitro, BMP7v treatment completely blocked cord formation. Pre-treatment of endothelial cells with BMP7v significantly reduced their cord forming ability, indicating …

Genetics and Molecular Biology (all)MaleVascular Endothelial Growth Factor AFibroblast Growth FactorAngiogenesisBone Morphogenetic Protein 7Nudelcsh:MedicineSmad ProteinsFibroblast growth factorBiochemistryNeovascularizationMiceCell Movementlcsh:ScienceBMP7 Angiogenesis TumorTumorMultidisciplinaryCell DeathNeovascularization PathologicMedicine (all)Cell migrationCell biologyEndothelial stem cellSettore MED/26 - NEUROLOGIAVascular endothelial growth factor ADrug CombinationsAdipose TissueAdipose Tissue; Animals; Bone Morphogenetic Protein 7; Cell Death; Cell Line Tumor; Cell Movement; Cell Proliferation; Collagen; Drug Combinations; Endothelial Cells; Fibroblast Growth Factor 2; Glioblastoma; Human Umbilical Vein Endothelial Cells; Humans; Laminin; Male; Mice Nude; Neoplastic Stem Cells; Neovascularization Pathologic; Neovascularization Physiologic; Proteoglycans; Receptor Fibroblast Growth Factor Type 1; Signal Transduction; Smad Proteins; Vascular Endothelial Growth Factor A; Vascular Endothelial Growth Factor Receptor-2; Xenograft Model Antitumor Assays; Biochemistry Genetics and Molecular Biology (all); Agricultural and Biological Sciences (all)Neoplastic Stem CellsFibroblast Growth Factor 2ProteoglycansCollagenmedicine.symptomReceptorType 1Research ArticleSignal TransductionMice NudeNeovascularization PhysiologicBMP7BiologyCell LineSettore MED/04 - PATOLOGIA GENERALECell Line TumormedicineHuman Umbilical Vein Endothelial CellsAnimalsHumansAgricultural and Biological Sciences (all); Biochemistry Genetics and Molecular Biology (all); Medicine (all)Receptor Fibroblast Growth Factor Type 1PhysiologicNeovascularizationCell ProliferationPathologicMatrigelBiochemistry Genetics and Molecular Biology (all)lcsh:REndothelial CellsKinase insert domain receptorVascular Endothelial Growth Factor Receptor-2Xenograft Model Antitumor AssaysAgricultural and Biological Sciences (all)lcsh:QAngiogenesisLamininGlioblastomaPLoS ONE
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TGF-β Signaling Pathways in Different Compartments of the Lower Airways of Patients With Stable COPD

2017

Background: The expression and localization of transforming growth factor-β (TGF-β) pathway proteins in different compartments of the lower airways of patients with stable COPD is unclear. We aimed to determine TGF-β pathway protein expression in patients with stable COPD. Methods: The expression and localization of TGF-β pathway components was measured in the bronchial mucosa and peripheral lungs of patients with stable COPD (n = 44), control smokers with normal lung function (n = 24), and control nonsmoking subjects (n = 11) using immunohistochemical analysis. Results: TGF-β1, TGF-β3, and connective tissue growth factor expression were significantly decreased in the bronchiolar epithelium…

MaleCCN2 connective tissue growth factorSmad Proteinsairway inflammationCritical Care and Intensive Care MedicineTRAP-1 transforming growth factor-β receptor-associated binding proteinPulmonary Disease Chronic ObstructiveLAP latency-associated peptideSMAD small mother against decapentaplegicBAMBI CTGF SMAD TGF-B airway inflammation autoimmunityLungTGF transforming growth factorLLC large latent complexBAMBI CTGF SMAD TGF-β Airway Inflammation AutoimmunityautoimmunityMiddle Agedrespiratory systemLTBP latent transforming growth factor-β binding proteinImmunohistochemistryTGIF 5′-TG-3′-interacting factorECM extracellular matrixTGFBI transforming growth factor-β-induced proteinFemaleCardiology and Cardiovascular MedicinePI3K phosphoinositide 3-kinaseSignal TransductionTGF-βPulmonary and Respiratory MedicineTGF-βR TGF-β receptorSocio-culturaleBronchiRespiratory MucosaArticleTGF-BTransforming Growth Factor beta1Transforming Growth Factor beta3Macrophages AlveolarHumansAgedBAMBI; CTGF; SMAD; TGF-β; airway inflammation; autoimmunityBAMBIMembrane ProteinsCTGFBMP bone morphogenetic proteinBAMBI; CTG; SMAD; TGF-β; airway inflammation; autoimmunityCTGBAMBI bone morphogenetic proteins and activin membrane-bound inhibitorrespiratory tract diseasesairway inflammation; autoimmunity; BAMBI; CTGF; SMAD; TGF-β; Pulmonary and Respiratory Medicine; Critical Care and Intensive Care Medicine; Cardiology and Cardiovascular MedicineCase-Control StudiesBiomarkersMAPK mitogen-activated protein kinaseSMAD
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The Role of Transforming Growth Factor-β1 in Airway Inflammation of Childhood Asthma

2013

TGF-beta-targeting structural and inflammatory cells has been implicated in the mechanisms leading to the inflammatory and restructuring processes in asthma, suggesting an impact of TGF-beta1 signaling on the development and persistency of this disease. We investigated the potential early involvement of TGF-beta1 activity in the immunological and molecular mechanisms underlying progression of inflammation in childhood asthma. We evaluated the levels of TGF-beta1 in induced sputum supernatants (ISSs) and the expression of small mother cell against decapentaplegic (Smad) 2 and Smad7 proteins in induced sputum cells (ISCs) from children with intermittent asthma (IA), moderate asthma (MA) and c…

MaleNeutrophilsSmad2 ProteinSMADEosinophilAdrenal Cortex HormoneSeverity of Illness IndexAdrenal Cortex HormonesImmunology and AllergyAge FactorPhosphorylationChildLungNeutrophilAge FactorsBronchodilator Agentsmedicine.anatomical_structureFemalemedicine.symptomCase-Control StudieHumanSignal TransductionGranulocyte activationAdolescentImmunologyAge Factors; Humans; Child; Macrophage-1 Antigen; Adrenal Cortex Hormones; Granulocytes; Neutrophils; Phosphorylation; Eosinophils; Adolescent; Signal Transduction; Male; Severity of Illness Index; Respiratory Mucosa; Asthma; Transforming Growth Factor beta1; Epithelial Cells; Lung; Smad2 Protein; Case-Control Studies; Smad7 Protein; Sputum; Administration Inhalation; Bronchodilator Agents; Cell Line; Female; Cell AdhesionMacrophage-1 AntigenCD18InflammationRespiratory MucosaGranulocyteCell LineSmad7 ProteinTransforming Growth Factor beta1Administration InhalationCell AdhesionmedicineHumansCell adhesionBronchodilator AgentPharmacologyEpithelial Cellbusiness.industrySputumGranulocyteEpithelial CellsEosinophilAsthmaEosinophilsCase-Control StudiesImmunologySputumbusinessGranulocytesInternational Journal of Immunopathology and Pharmacology
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Bone morphogenetic protein 4 induces differentiation of colorectal cancer stem cells and increases their response to chemotherapy in mice.

2010

BACKGROUND & AIMS: The limited clinical response observed in many patients with colorectal cancer may be related to the presence of chemoresistant colorectal can- cer stem cells (CRC-SCs). Bone morphogenetic protein 4 (BMP4) promotes the differentiation of normal colonic stem cells. We investigated whether BMP4 might be used to induce differentiation of CRC-SCs and for therapeutic purposes. METHODS: CRC-SCs were isolated from 25 tumor samples based on expression of CD133 or using a selection culture medium. BMP4 expression and activity on CRC-SCs were evaluated in vitro; progeny of the stem cells were evaluated by immunofluorescence, immuno- blot, and flow cytometry analyses. The potential …

MaleOrganoplatinum CompoundsCellular differentiationDrug ResistanceApoptosisBone Morphogenetic Protein 4Colon Cancer; Drug Resistance; Neoplasia; Tumor Resistance to Chemotherapy; AC133 Antigen; Adenomatous Polyposis Coli; Aged; Aged 80 and over; Animals; Antigens CD; Antineoplastic Agents; Apoptosis; Bone Morphogenetic Protein 4; Cell Differentiation; Cells Cultured; Colorectal Neoplasms; Female; Fluorouracil; Glycoproteins; Humans; Male; Mice; Microsatellite Instability; Middle Aged; Mutation; Neoplastic Stem Cells; Organoplatinum Compounds; PTEN Phosphohydrolase; Peptides; Phosphatidylinositol 3-Kinase; Proto-Oncogene Proteins c-akt; Smad4 Protein; GastroenterologyMice80 and overBone morphogenetic protein receptorAC133 AntigenCells CulturedSmad4 ProteinAged 80 and overCulturedColon Cancerintegumentary systemGastroenterologyCell DifferentiationBMP4 colon stem cellsMiddle AgedCDOxaliplatinTumor Resistance to ChemotherapyBone morphogenetic protein 4Adenomatous Polyposis Coliembryonic structuresNeoplastic Stem CellsFemaleMicrosatellite InstabilityFluorouracilStem cellColorectal Neoplasmsanimal structuresCellsAntineoplastic AgentsBiologyBone morphogenetic proteinSettore MED/04 - PATOLOGIA GENERALECancer stem cellAntigens CDPTENAnimalsHumansAntigensneoplasmsPI3K/AKT/mTOR pathwayAgedGlycoproteinsNeoplasiaHepatologyPTEN Phosphohydrolasedigestive system diseasesMutationCancer researchbiology.proteinPhosphatidylinositol 3-KinasePeptidesProto-Oncogene Proteins c-aktGastroenterology
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