|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Changes of the cytokine profile in inflammatory bowel diseases显示文摘Cytokines are indispensable signals of the mucosaassociated immune system for maintaining normal gut homeostasis.An imbalance of their profile in favour of inflammation initiation may lead to disease states,such as that is observed in inflammatory bowel diseases(IBD).Although Crohn's disease(CD) is often described as a prototype of T-helper 1-type diseases,and ulcerative colitis(UC) is traditionally viewed as a T-helper 2-mediated condition,the classic paradigm,which categorises cytokines into pro-and anti-inflammatory groups,has recently been changed.The inflammation regulatory pathways may not be mutually exclusive as individual cytokines can have diverse and even opposing functions in various clinical and immunological settings.None the less there are many common immunological responses in IBD that are mediated by cytokines.Although they regulate and influence the development,course and recurrence of the inflammatory process,the concrete pathogenic role of these small signaling molecules is sometimes not unambiguous in the subtypes of the disease.Our aim is to review the current information about pro-and anti-inflammatory effects of traditionally studied and recently discovered cytokines in the pathogenesis of UC and CD.The better understanding of their production and functional activity may lead to the development of new therapeutic modalities. | Gyrgyi Mzes Béla Molnár Zsolt Tulassay Ferenc Sipos | 2012 | World Journal of Gastroenterology2012，18，41： | 16 |
| 2 | Epithelial toll-like receptor 9 signaling in colorectal inflammation and cancer: Clinico-pathogenic aspects显示文摘Toll-like receptors (TLRs) recognize specific motifs which are frequently present in bacteria, fungi, prokaryotes and viruses. Amongst TLRs, TLR9 can be activated by such bacterial or viral DNA fragments, immunoglobulin-DNA complexes or synthetic oligonucleotides, which all contain unmethylated cytosineguanine nucleotide sequences (CpGs). Emerging data indicate that TLR9 signaling has a role in, and may influence, colorectal carcinogenesis and colonic inflammation. CpGs are classified into three groups according to their influence on both the antigen-specific humoraland cellular immunity, and the production of type 1 interferons and proinflammatory cytokines. TLR9 activation via CpGs may serve as a new therapeutic target for several cancerous and various inflammatory conditions. Due to its probable anti-cancer effects, the application possibilities of TLR9-signaling modulation may be extremely diverse even in colorectal tumors. In this review we aimed to summarize the current knowledge about TLR-signaling in the pathogenesis and therapy of inflammatory bowel diseases and colorectal cancer. Due to the species-specific differences in TLR9 expression, however, one must be careful in translating the animal model data into the human system, because of the differences between CpG-oligodeoxynucleotide-responsive cells. TLR9 agonist DNA-based immunomodulatory sequences could also represent a promising therapeutic alternative in systemic inflammatory conditions and chronic colonic inflammations as their side effects are not significant. | István Fri Ferenc Sipos Tiana M Germann Alexandra Kalmár Zsolt Tulassay Béla Molnár Gyrgyi Mzes | 2013 | World Journal of Gastroenterology2013，19，26： | 14 |
| 3 | Therapeutic aspects of c-MYC signaling in inflammatory and cancerous colonic diseases显示文摘Colonic inflammation is required to heal infections, wounds, and maintain tissue homeostasis. As the seventh hallmark of cancer, however, it may affect all phases of tumor development, including tumor initiation, promotion, invasion and metastatic dissemination, and also evasion immune surveillance. Inflammation acts as a cellular stressor and may trigger DNA damage or genetic instability, and, further, chronic inflammation can provoke genetic mutations and epigenetic mechanisms that promote malignant cell transformation. Both sporadical and colitis-associated colorectal carcinogenesis are multi-step, complex processes arising from the uncontrolled proliferation and spreading of malignantly transformed cell clones with the obvious ability to evade the host's protective immunity. In cells upon DNA damage several protooncogenes, including c-MYC are activated in parelell with the inactivation of tumor suppressor genes. The target genes of the c-MYC protein participate in different cellular functions, including cell cycle, survival, protein synthesis, cell adhesion, and microRNA expression. The transcriptional program regulated by c-MYC is context dependent, therefore the final cellular response to elevated c-MYC levels may range from increased proliferation to augmented apoptosis. Considering physiological intestinal homeostasis, c-MYC displays a fundamental role in the regulation of cell proliferation and crypt cell number. However, c-MYC gene is frequently deregulated in inflammation, and overexpressed in both sporadic and colitis-associated colon adenocarcinomas. Recent results demonstrated that endogenous c-MYC is essential for efficient induction of p53-dependent apoptosis following DNA damage, but c-MYC function is also involved in and regulated by autophagy-related mechanisms, while its expression is affected by DNA-methylation, or histone acetylation. Molecules directly targeting c-MYC, or agents acting on other genes involved in the c-MYC pathway could be selected for combined regiments. However, due to its context-dependent cellular function, it is clinically essential to consider which cytotoxic drugs are used in combination with c-MYC targeted agents in various tissues. Increasing our knowledge about MYCdependent pathways might provide direction to novel anti-inflammatory and colorectal cancer therapies. | Ferenc Sipos Gábor Firneisz Györgyi Mũzes | 2016 | World Journal of Gastroenterology2016，22，35： | 9 |
| 4 | Contribution of TLR signaling to the pathogenesis of colitisassociated cancer in inflammatory bowel disease显示文摘In the intestine a balance between proinflammatory and repair signals of the immune system is essential for the maintenance of intestinal homeostasis. The innate immunity ensures a primary host response to microbial invasion, which induces an inflammatory process to localize the infection and prevent systemic dissemination of pathogens. The key elements of this process are the germline encoded pattern recognition receptors inclu-ding Toll-like receptors(TLRs). If pathogens cannot be eliminated, they may elicit chronic inflammation, which may be partly mediated via TLRs. Additionally, chronic inflammation has long been suggested to trigger tissue tumorous transformation. Inflammation, the seventh hallmark of cancer, may affect all phases of tumor development, and evade the immune system. Inflammation acts as a cellular stressor and may trigger DNA damage or genetic instability. Furthermore, chronic inflammation can provoke genetic mutations and epigenetic mechanisms that promote malignant cell transformation. Colorectal cancers in inflammatory bowel disease patients are considered typical examples of inflammation-related cancers. Although data regarding the role of TLRs in the pathomechanism of cancer-as-sociated colitis are rather conflicting, functionally these molecules can be classified as 'largely antitumorigenic' and 'largely pro-tumorigenic' with the caveat that the underlying signaling pathways are mainly context(i.e., organ-, tissue-, cell-) and ligand-dependent. | Ferenc Sipos István Fri Miklós Constantinovits Zsolt Tulassay Gyrgyi Mzes | 2014 | World Journal of Gastroenterology2014，20，36： | 9 |
| 5 | Regulatory T cells in inflammatory bowel diseases and colorectal cancer显示文摘Regulatory T cells(T regs) are key elements in immunological self-tolerance.The number of T regs may alter in both peripheral blood and in colonic mucosa during pathological circumstances.The local cellular,microbiological and cytokine milieu affect immunophenotype and function of T regs.Forkhead box P3+ T regs function shows altered properties in inflammatory bowel diseases(IBDs).This alteration of T regs function can furthermore be observed between Crohn's disease and ulcerative colitis,which may have both clinical and therapeutical consequences.Chronic mucosal inflammation may also influence T regs function,which together with the intestinal bacterial flora seem to have a supporting role in colitis-associated colorectal carcinogenesis.T regs have a crucial role in the immunoevasion of cancer cells in sporadic colorectal cancer.Furthermore,their number and phenotype correlate closely with the clinical outcome of the disease,even if their contribution to carcinogenesis has previously been controversial.Despite knowledge of the clinical relationship between IBD and colitis-associated colon cancer,and the growing number of immunological aspects encompassing sporadic colorectal carcinogenesis,the molecular and cellular links amongst T regs,regulation of the inflammation,and cancer development are still not well understood.In this paper,we aimed to review the current data surrounding the role of T regs in the pathogenesis of IBD,colitis-associated colon cancer and sporadic colorectal cancer. | Gyrgyi Mzes Béla Molnár Ferenc Sipos | 2012 | World Journal of Gastroenterology2012，18，40： | 7 |
| 6 | Interplay of autophagy and innate immunity in Crohn's disease: A key immunobiologic feature显示文摘Crohn's disease representing a clinical phenotype of inflammatory bowel disease is a polygenic immune disorder with complex multifactor etiology. Recent genome-wide association studies of susceptibility loci have highlighted on the importance of the autophagy pathway, which previously had not been implicated in disease pathology. Autophagy represents an evolutionarily highly conserved multi-step process of cellular self-digestion due to sequestration of excessive, damaged, or aged proteins and intracellular organelles in double-membranous vesicles of autophagosomes, terminally self-digested in lysosomes. Autophagy is deeply involved in regulation of cell development and differentiation, survival and senescence, and it also fundamentally affects the inflammatory pathways, as well as the innate and adaptive arms of immune responses. Autophagy is mainly activated due to sensors of the innate immunity, i.e., by pattern recognition receptor signaling. The interplay of genes regulating immune functions is strongly influenced by the environment, especially gut resident microbiota. The basic challenge for intestinal immune recognition is the requirement of a simultaneous delicate balance between tolerance and responsiveness towards microbes. On the basis of autophagy-related risk genetic polymorphisms (ATG16L1, IRGM , NOD2 , XBP1 ) impaired sensing and handling of intracellular bacteria by innate immunity, closely interrelated with the autophagic and unfolded protein pathways seem to be the most relevant immunobiologic events. Autophagy is now widely considered as a key regulator mechanism with the capacity to integrate several aspects of Crohn's disease pathogenesis. In this review, recent advances in the exciting crosstalk of susceptibility coding variants-related autophagy and innate immunity are discussed. | Gyrgyi Müzes Zsolt Tulassay Ferenc Sipos | 2013 | World Journal of Gastroenterology2013，19，28： | 6 |
| 7 | A comprehensive characterization of pancreatic ductal carcinoma cell lines: towards the establishment of an in vitro research platform显示文摘 | Bence Sipos Simone M?ser Holger Kalthoff Virag T?r?k Matthias L?hr Günter Kl?ppel | 2003 | Virchows Archiv2003，，5： | 4 |
| 8 | Isolated lymphoid follicles in colon: Switch points between inflammation and colorectal cancer?显示文摘Gut-associated lymphoid tissue is supposed to play a central role in both the organization of colonic repair mechanisms and colorectal carcinogenesis. In inflammatory conditions, the number, diameter and density of isolated lymphoid follicles (ILFs) increases. They are not only involved in immune surveillance, but their presence is also indispensable in normal mucosal regeneration of the colon. In carcinogenesis, ILFs may play a dual role. On the one hand they may support tumor growth and the metastatic process by vascular endothelial growth factor receptor signaling and producing a specific cytokine and cellular milieu, but on the other hand their presence is sometimes associated with a better prognosis. The relation of ILFs to bone marrow derived stem cells, follicular dendritic cells, subepithelial myofibroblasts or crypt formation, which are all involved in mucosal repair and carcinogenesis, has not been directly studied. Data about the putative organizer role of ILFs is scattered in scientific literature. | Ferenc Sipos Gyrgyi Müzes | 2011 | World Journal of Gastroenterology2011，17，13： | 4 |
| 9 | Intratumoral functional heterogeneity and chemotherapy显示文摘Intratumoral heterogeneity including genetic and nongenetic mechanisms refers to biological differences amongst malignant cells originated within the same tumor.Both,cell differentiation hierarchy and stochasticity in gene expression and signaling pathways may result in phenotypic differences of cancer cells.Since a tumor consists of cancer cell clones that display distinct behaviours,changes in clonal proliferative behavior may also contribute to the phenotypic variability of tumor cells.There is a need to reveal molecular actions driving chemotherapeutic resistance in colon cancer cells.In general,it is widely hypothesized that therapeutic resistance in colorectal cancer is a consequence of the preferential survival of cancer stem cells.However,recent data regarding colorectal cancer suggest that resistance to anticancer therapy and post-therapeutic tumor reappearence could be related to variations of clonal dynamics.Understanding the interaction of genetic and nongenetic determinants influencing the functional diversity and therapy response of tumors should be a future direction for cancer research. | Ferenc Sipos Miklós Constantinovits Gyrgyi Müzes | 2014 | World Journal of Gastroenterology2014，20，10： | 3 |
| 10 | Association of hepatocyte-derived growth factor receptor/caudal type homeobox 2 co-expression with mucosal regeneration in active ulcerative colitis显示文摘AIM:To characterize the regeneration-associated stem cell-related phenotype of hepatocyte-derived growth factor receptor(HGFR)-expressing cells in active ulcerative colitis(UC).METHODS:On the whole 38 peripheral blood samples and 38 colonic biopsy samples from 18 patients with histologically proven active UC and 20 healthy control subjects were collected.After preparing tissue microarrays and blood smears HGFR,caudal type homeobox 2(CDX2),prominin-1(CD133) and Musashi-1conventional and double fluorescent immunolabelings were performed.Immunostained samples were digitalized using high-resolution Mirax Desk instrument,and analyzed with the Mirax TMA Module software.For semiquantitative counting of immunopositive lamina propria(LP) cells 5 fields of view were counted at magnification x 200 in each sample core,then mean ± SD were determined.In case of peripheral blood smears,30 fields of view with 100 μm diameter were evaluated in every sample and the number of immunopositive cells(mean ± SD) was determined.Using 337 nm UVA Laser MicroDissection system at least 5000 subepithelial cells from the lamina propria were collected.Gene expression analysis of HGFR,CDX2,CD133,leucine-rich repeat-containing G-protein coupled receptor 5(Lgr5),Musashi-1 and cytokeratin20(CK20) were performed in both laser-microdisscted samples and blood samples by using real time reverse transcription polymerase chain reaction(RT-PCR).RESULTS:By performing conventional and double fluorescent immunolabelings confirmed by RT-PCR,higher number of HGFR(blood:6.7 ± 1.22 vs 38.5 ±3.18;LP:2.25 ± 0.85 vs 9.22 ± 0.65;P < 0.05),CDX2(blood:0 vs 0.94 ± 0.64;LP:0.75 ± 0.55 vs 2.11± 0.75;P < 0.05),CD133(blood:1.1 ± 0.72 vs 8.3± 1.08;LP:11.1 ± 0.85 vs 26.28 ± 1.71;P < 0.05)and Musashi-1(blood and LP:0 vs scattered) positive cells were detected in blood and lamina propria of UC samples as compared to controls.HGFR/CDX2(blood:0 vs 1± 0.59;LP:0.8 ± 0.69 vs 2.06 ± 0.72,P < 0.05)and Musashi-1/CDX2(blood and LP:0 vs scattered) coexpressions were found in blood and lamina propria of UC samples.HGFR/CD133 and CD133/CDX2 coexpressions appeared only in UC lamina propria samples.CDX2,Lgr5 and Musashi-1 expressions in UC blood samples were not accompanied by CK20 mRNA expression.CONCLUSION:In active UC,a portion of circulating HGFR-expressing cells are committed to the epithelial lineage,and may participate in mucosal regeneration by undergoing mesenchymal-to-epithelial transition. | Ferenc Sipos Miklós Constantinovits Gábor Valcz Zsolt Tulassay Gy?rgyi M?zes | 2015 | World Journal of Gastroenterology2015，21，28： | 2 |
| 11 | Disagreements in the therapeutic use of mesenchymal stem cellderived secretome显示文摘In a recent article,the authors provide a detailed summary of the characteristics and biological functions of mesenchymal stem cells(MSCs),as well as a discussion on the potential mechanisms of action of MSC-based therapies.They describe the morphology,biogenesis,and current isolation techniques of exosomes,one of the most important fractions of the MSC-derived secretome.They also summarize the characteristics of MSC-derived exosomes and highlight their functions and therapeutic potential for tissue/organ regeneration and for kidney,liver,cardiovascular,neurological,and musculoskeletal diseases,as well as cutaneous wound healing.Despite the fact that MSCs are regarded as an important pillar of regenerative medicine,their regenerative potential has been demonstrated to be limited in a number of pathological conditions.The negative effects of MSC-based cell therapy have heightened interest in the therapeutic use of MSC-derived secretome.On the other hand,MSC-derived exosomes and microvesicles possess the potential to have a significant impact on disease development,including cancer.MSCs can interact with tumor cells and promote mutual exchange and induction of cellular markers by exchanging secretome.Furthermore,enzymes secreted into and activated within exosomes can result in tumor cells acquiring new properties.As a result,therapeutic applications of MSC-derived secretomes must be approached with extreme caution. | Ferenc Sipos Györgyi Műzes | 2022 | World Journal of Stem Cells2022，14，6： | 1 |
| 12 | Pathophysiology of osteoporosis显示文摘 | Sipos W Pietschmann P Rauner M | 2009 | Wien Med Wochenschr2009，159，910： | 1 |
| 13 | Effect of primer mismatch, annealing temperature and PCR cycle number on 16S rRNA gene-targetting bacteri- al community analysis 显示文摘 | SIPOS R SZIKELY AJ PALATINSZKY M | 2007 | FEMS Microbiol Ecol2007，60，2： | 1 |
| 14 | Pathophysiology of osteoporosis 显示文摘 | Sipos W Pietschmann P Rauner M | 2009 | Wien Med Wochenschr2009，159，910： | 1 |
| 15 | Characterization of calcified deposits on contraceptive intrauterine devices显示文摘 | PATAI K BERENYI M SIPOS M | 1998 | Contraception1998，58，5： | 1 |
| 16 | Systemic cytokine profile in feeder pigs suffering from natural postweaning multisystemic wasting syndrome (PMWS) determined by semiquantitative RT - PCR and flow cytometric intracellular cytokine detection 显示文摘 | SIPOS W DUVIGNEAU J C WILLHEIM M | 2004 | Vet Immunol Immunopathol2004，99，： | 1 |
| 17 | Lymphatic spread of ductalpancreatic adenocarcinoma is independent of lymphangiogenesis显示文摘 | Sipos B Kojima M Tiemann K | 2005 | J Pathol2005，207，3： | 1 |
| 18 | Heavy metal accumulation and tolerance of energy grass ( Elymus elongatus subsp. ponticus cv. Szarvasi-1) grown in hydroponic culture显示文摘 | Gyula Sipos ádám Solti Viktória Czech Ildikó Vashegyi Brigitta Tóth Edit Cseh Ferenc Fodor | 2013 | Plant Physiology and Biochemistry2013，，： | 1 |
| 19 | Effect of poly (ethylene glycol) on enzymatic hydrolysis and adsorption of cellulase enzymes to pretreated lignocellulose显示文摘 | BORJESSON J ENGQVIST M SIPOS B | 2007 | Enzyme and Microbial Technology2007，41，1： | 1 |
| 20 | Pathophysiology of osteoporosis显示文摘 | Sipos W Pietschmann P Rauner M | 2009 | Wien Med Wochenschr2009，159，910： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员