S100 Proteins in Inflammatory Bowel Disease and Colorectal Neoplasia

Souhrn Idiopatické střevní záněty a kolorektální karcinom představují v celosvětovém měřítku závažný medicínsky a socio-ekonomický problém. I přes významný pokrok v diagnostice těchto onemocnění v současné době není dostupný specifický sérový marker, který by umožnil detekci rizikových skupin pacientů. Naše práce hodnotila význam vybraných proteinů S100 v séru pacientů s idiopatickými střevními záněty a kolorektálními neopláziemi. Práce byla rozdělená do třech částí, které hodnotily (1) asociaci sérové koncentrace proteinu S100A4 s idiopatickými střevními záněty, ulcerózní kolitidou a Crohnovou chorobou; (2) asociaci sérové koncentrace proteinu S100A6, S100A8, S100A9 a S100A11 s kolorektálními neopláziemi a (3) asociaci sérové koncentrace proteinu S100P s kolorektálním karcinomem. Celkem bylo zahrnuto 253 osob: 40 jedinců ve skupině kontrol, 16 pacientů s ulcerózní kolitidou, 93 pacientů s Crohnovou chorobou, 20 pacientů s nepokročilým kolorektálním adenomem, 22 pacientů s pokročilým kolorektálním adenomem a 62 pacientů s kolorektálním karcinomem. Potvrdili jsme významně vyšší sérové koncentrace S100A4 proteinu u pacientů s ulcerózní kolitidou a Crohnovou chorobou. Pacienti s Crohnovou chorobou vykazovali významně vyšší sérové koncentrace S100A4 ve skupině s izolovaným kolonickým a ileokolonickým postižením...S100 proteins in inflammatory bowel disease and colorectal neoplasia Inflammatory bowel disease and colorectal cancer represent a serious medical and socio- economic problem worldwide. Despite the progress in diagnostic of both diseases, there is no specific serum maker, which would allow to detect risk group of patients. Our paper focused on importance of serum S100 proteins in inflammatory bowel disease and colorectal neoplasia: (1) association of serum S100A4 with inflammatory bowel disease, ulcerative colitis and Crohn's disease, (2) association of serum S100A6, S100A8, S100A9 and S100A11 with colorectal neoplasia and (3) association of serum S100P with colorectal cancer. A total of 253 subject were enrolled: 40 healthy controls, 16 patients with ulcerative colitis, 93 patients with Crohn's disease, 20 patients with non-advanced colorectal adenoma, 20 patients with advanced colorectal adenoma and 62 patients with colorectal cancer. We confirmed significantly higher serum concentrations of S100A4 protein in patients with ulcerative colitis and Crohn's disease. In Crohn's disease, serum S100A4 was significantly higher in patients with colonic and ileocolonic involvement. We did not confirm association of serum S100A4 with fibrostenosing phenotype of Crohn's diseases and with perianal involvement. We...Katedra interních oborůAcademic Department of Internal MedicineLékařská fakulta v Hradci KrálovéFaculty of Medicine in Hradec Králov

Escherichia coli from biopsies differ in virulence genes between patients with colorectal neoplasia and healthy controls

IntroductionPathogenic strains of Escherichia coli have been clearly identified as the causative agents of extraintestinal and diarrheal infections; however, the etiopathogenic role of E. coli in other conditions, including colorectal cancer, remains unclear.MethodsThis study aimed to characterize mucosal E. coli isolates (n = 246) from 61 neoplasia patients and 20 healthy controls for the presence of 35 genetic determinants encoding known virulence factors.ResultsVirulence determinants encoding invasin (ibeA), siderophore receptor (iroN), S-fimbriae (sfa), and genotoxin (usp) were more prevalent among E. coli isolated from patients with neoplasia compared to the control group (p < 0.05). In addition, the prevalence of these virulence determinants was increased in more advanced neoplasia stages (padj < 0.0125). Compared to patients with advanced colorectal adenoma and carcinoma, the ibeA gene was rarely found in the control group and among patients with non-advanced adenoma (p < 0.05), indicating its potential as the advanced-neoplasia biomarker. Patients with neoplasia frequently had E. coli strains with at least one of the abovementioned virulence factors, whereby specific combinations of these virulence factors were found.DiscussionThese findings suggest that E. coli strains isolated from patients with colorectal neoplasia possess several virulence factors, which could contribute to the development of neoplastic processes in the large intestine

S100 Proteins in Inflammatory Bowel Disease and Colorectal Neoplasia

S100 proteins in inflammatory bowel disease and colorectal neoplasia Inflammatory bowel disease and colorectal cancer represent a serious medical and socio- economic problem worldwide. Despite the progress in diagnostic of both diseases, there is no specific serum maker, which would allow to detect risk group of patients. Our paper focused on importance of serum S100 proteins in inflammatory bowel disease and colorectal neoplasia: (1) association of serum S100A4 with inflammatory bowel disease, ulcerative colitis and Crohn's disease, (2) association of serum S100A6, S100A8, S100A9 and S100A11 with colorectal neoplasia and (3) association of serum S100P with colorectal cancer. A total of 253 subject were enrolled: 40 healthy controls, 16 patients with ulcerative colitis, 93 patients with Crohn's disease, 20 patients with non-advanced colorectal adenoma, 20 patients with advanced colorectal adenoma and 62 patients with colorectal cancer. We confirmed significantly higher serum concentrations of S100A4 protein in patients with ulcerative colitis and Crohn's disease. In Crohn's disease, serum S100A4 was significantly higher in patients with colonic and ileocolonic involvement. We did not confirm association of serum S100A4 with fibrostenosing phenotype of Crohn's diseases and with perianal involvement. We..

S100A4 Protein in Inflammatory Bowel Disease: Results of a Single Centre Prospective Study

Introduction: The aim of our study was to assess association of serum S100A4 protein with ulcerative colitis (UC) and Crohn’s disease (CD). Methods: Study included 118 subjects: 93 patients with CD, 16 with UC and 9 controls. In CD group, 20/93 patients had B1 phenotype, 19/93 B2, 20/93 B3 and 34/93 B2 + B3. L1 involvement was present in 15/93, L2 in 14/93 and L3 in 64/93 patients. Serum S100A4 concentration was investigated in peripheral venous blood samples by means of ELISA. Results: Serum S100A4 was significantly higher in UC (158.6 ± 56.2 ng/mL), p = 0.019 and in CD (154.4 ± 52.1 ng/mL), p = 0.007 compared to controls (104.8 ± 40.5 ng/mL). No difference in S100A4 was revealed between UC and CD, p > 0.05. Serum S100A4 in each CD subgroup (according to behaviour) was significantly higher compared to controls, p < 0.05. Serum S100A4 was significantly higher in L2 (144.6 ± 44.2 ng/mL), p = 0.041 and in L3 (163.0 ± 52.8 ng/mL), p = 0.002 compared to controls and in L3 compared to L1 (126.9 ± 47.6 ng/mL), p = 0.017. Conclusion: Association of serum S100A4 protein with UC and CD was confirmed. In CD, disease behaviour did not influence serum concentration of S100A4 protein. In CD, higher levels of serum S100A4 were observed in patients with ileo-colonic and colonic involvement compared to those with isolated small bowel involvement

Exhaled Breath Condensate: Pilot Study of the Method and Initial Experience in Healthy Subjects

Analysis of Exhaled breath condensate (EBC) is a re-discovered approach to monitoring the course of the disease and reduce invasive methods of patient investigation. However, the major disadvantage and shortcoming of the EBC is lack of reliable and reproducible standardization of the method. Despite many articles published on EBC, until now there is no clear consensus on whether the analysis of EBC can provide a clue to diagnosis of the diseases. The purpose of this paper is to investigate our own method, to search for possible standardization and to obtain our own initial experience. Thirty healthy volunteers provided the EBC, in which we monitored the density, pH, protein, chloride and urea concentration. Our results show that EBC pH is influenced by smoking, and urea concentrations are affected by the gender of subjects. Age of subjects does not play a role. The smallest coefficient of variation between individual volunteers is for density determination. Current limitations of EBC measurements are the low concentration of many biomarkers. Standardization needs to be specific for each individual biomarker, with focusing on optimal condensate collection. EBC analysis has a potential become diagnostic test, not only for lung diseases

Treatment of Multifocal Multisystem BRAF positive Langerhans Cell Histiocytosis with Cladribine, surgery and Allogenic Stem Cell Transplantation

Langerhans cell histiocytosis (LCH) is a very rare disease in adults and as well a very rare cause of sellar expansion. The clinical presentation can be heterogeneous, from a single bone lesion to potentially fatal, widespread disease. We describe the difficulties with the diagnosis and treatment of LCH as well as successful treatment with cladribine chemotherapy and allogeneic stem cell transplantation

Table_3_Escherichia coli from biopsies differ in virulence genes between patients with colorectal neoplasia and healthy controls.XLSX

IntroductionPathogenic strains of Escherichia coli have been clearly identified as the causative agents of extraintestinal and diarrheal infections; however, the etiopathogenic role of E. coli in other conditions, including colorectal cancer, remains unclear.MethodsThis study aimed to characterize mucosal E. coli isolates (n = 246) from 61 neoplasia patients and 20 healthy controls for the presence of 35 genetic determinants encoding known virulence factors.ResultsVirulence determinants encoding invasin (ibeA), siderophore receptor (iroN), S-fimbriae (sfa), and genotoxin (usp) were more prevalent among E. coli isolated from patients with neoplasia compared to the control group (p adj DiscussionThese findings suggest that E. coli strains isolated from patients with colorectal neoplasia possess several virulence factors, which could contribute to the development of neoplastic processes in the large intestine.</p

Table_2_Escherichia coli from biopsies differ in virulence genes between patients with colorectal neoplasia and healthy controls.XLSX

IntroductionPathogenic strains of Escherichia coli have been clearly identified as the causative agents of extraintestinal and diarrheal infections; however, the etiopathogenic role of E. coli in other conditions, including colorectal cancer, remains unclear.MethodsThis study aimed to characterize mucosal E. coli isolates (n = 246) from 61 neoplasia patients and 20 healthy controls for the presence of 35 genetic determinants encoding known virulence factors.ResultsVirulence determinants encoding invasin (ibeA), siderophore receptor (iroN), S-fimbriae (sfa), and genotoxin (usp) were more prevalent among E. coli isolated from patients with neoplasia compared to the control group (p adj DiscussionThese findings suggest that E. coli strains isolated from patients with colorectal neoplasia possess several virulence factors, which could contribute to the development of neoplastic processes in the large intestine.</p

Table_4_Escherichia coli from biopsies differ in virulence genes between patients with colorectal neoplasia and healthy controls.XLSX

IntroductionPathogenic strains of Escherichia coli have been clearly identified as the causative agents of extraintestinal and diarrheal infections; however, the etiopathogenic role of E. coli in other conditions, including colorectal cancer, remains unclear.MethodsThis study aimed to characterize mucosal E. coli isolates (n = 246) from 61 neoplasia patients and 20 healthy controls for the presence of 35 genetic determinants encoding known virulence factors.ResultsVirulence determinants encoding invasin (ibeA), siderophore receptor (iroN), S-fimbriae (sfa), and genotoxin (usp) were more prevalent among E. coli isolated from patients with neoplasia compared to the control group (p adj DiscussionThese findings suggest that E. coli strains isolated from patients with colorectal neoplasia possess several virulence factors, which could contribute to the development of neoplastic processes in the large intestine.</p

Table_1_Escherichia coli from biopsies differ in virulence genes between patients with colorectal neoplasia and healthy controls.XLSX

IntroductionPathogenic strains of Escherichia coli have been clearly identified as the causative agents of extraintestinal and diarrheal infections; however, the etiopathogenic role of E. coli in other conditions, including colorectal cancer, remains unclear.MethodsThis study aimed to characterize mucosal E. coli isolates (n = 246) from 61 neoplasia patients and 20 healthy controls for the presence of 35 genetic determinants encoding known virulence factors.ResultsVirulence determinants encoding invasin (ibeA), siderophore receptor (iroN), S-fimbriae (sfa), and genotoxin (usp) were more prevalent among E. coli isolated from patients with neoplasia compared to the control group (p adj DiscussionThese findings suggest that E. coli strains isolated from patients with colorectal neoplasia possess several virulence factors, which could contribute to the development of neoplastic processes in the large intestine.</p