Abstract:
AIMS:We aimed to study epidermal growth factor receptor (EGFR) expression in surgically resected pancreatic ductal adenocarcinomas (PDACs) by immunohistochemistry and their relationship to clinicopathological features, cell proliferation and cell adhesion protein expression. METHODS:A total of 99 PDACs were analysed on tissue microarrays for EGFR, E-cadherin and β-catenin expression patterns in tumour cells. The percentage of cells expressing the three proteins (membrane, cytoplasm or nuclear pattern) and of Ki67-positive tumour cells was assessed. Tumour protein expression was studied with regard to clinicomorphological features, Ki67 index and for postsurgical survival. RESULTS:Membrane tumour EGFR correlated with histological poor differentiation (dedifferentiation), increased number of mitoses and severe tumour cell atypia (pleiomorphism) as well as with aberrant adhesion protein expression such as nuclear β-catenin and cytoplasmic E-cadherin. Cytoplasmic tumour E-cadherin correlated with an increased Ki67-positive tumour cell component, whereas nuclear E-cadherin correlated with a shorter postsurgical overall survival, as well as with tumour necrosis and an abundant clear cell component. CONCLUSIONS:In conclusion, the results of our study suggest a complex role for EGFR in PDAC carcinogenesis, tumour expression of this protein being associated with tumour dedifferentiation, mitotic activity or pleiomorphism, as well as with aberrant tumour cell adhesion protein expression.
journal_name
J Clin Patholjournal_title
Journal of clinical pathologyauthors
Handra-Luca A,Hammel P,Sauvanet A,Lesty C,Ruszniewski P,Couvelard Adoi
10.1136/jclinpath-2013-201662subject
Has Abstractpub_date
2014-04-01 00:00:00pages
295-300issue
4eissn
0021-9746issn
1472-4146pii
jclinpath-2013-201662journal_volume
67pub_type
杂志文章abstract:AIMS:To identify the amyloid protein in a patient with amyloidosis localised to the urinary bladder, and to see whether subtyping of the protein by sequence analysis increases the understanding of the selection of the urinary bladder as the site of amyloid deposition. METHODS:A patient with gross haematuria and a cong...
journal_title:Journal of clinical pathology
pub_type: 杂志文章,评审
doi:10.1136/jcp.54.12.920
更新日期:2001-12-01 00:00:00
abstract::A 68 year old diabetic man developed septicaemia and multiple liver abscesses due to Streptococcus intermedius. Liver biopsy revealed streptococcal botryomycosis which showed the Splendore-Hoeppli phenomenon. Diabetes mellitus is an example of the immunosuppressed states that have been associated with botryomycosis. ...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.51.5.399
更新日期:1998-05-01 00:00:00
abstract::Fluorescence in situ hybridisation (FISH) analysis is now widely employed in the diagnosis and risk stratification of a wide range of malignant diseases. While this technique is used successfully with formalin-fixed paraffin-embedded (FFPE) sections from numerous tissue types, FISH analysis of FFPE tissue sections fro...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jclinpath-2012-201131
更新日期:2013-01-01 00:00:00
abstract::This report describes a patient with a gastric biopsy specimen showing histomorphological and immunohistochemical appearances indistinguishable from those usually present in lymphocytic gastritis, a rare condition of unknown aetiology with a distinctive phenotype. The patient had a history of a biopsy confirmed T cell...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.2004.017350
更新日期:2004-11-01 00:00:00
abstract::Autoantibodies against gastric epithelial cells are detectable in up to 50% of patients with chronic, active Helicobacter pylori gastritis. Presence of autoantibodies against canalicular structures within human parietal cells (anticanalicular autoantibodies) correlate with gastric mucosa atrophy. It has been suggested...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.51.3.244
更新日期:1998-03-01 00:00:00
abstract::Extracts of the seeds of Vicia cretica (NO Leguminosae) strongly agglutinate T- Th- but not Tk- or other polyagglutinable red cells. The V. cretica lectin is therefore a very useful laboratory reagent in the elucidation of erythrocyte polyagglutination due to T-like erythrocyte cryptantigens. ...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.34.1.69
更新日期:1981-01-01 00:00:00
abstract:AIM:IgG4 disease is rare. However, IgG4 tubulointerstitial nephritis (TIN) is the most common renal manifestation. IgG4 disease is usually associated with elevated serum IgG4 levels and other organ involvement, low-density renal lesions on enhanced CT imaging and immune activation. The incidence of IgG4-TIN may be unde...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jclinpath-2016-203905
更新日期:2017-06-01 00:00:00
abstract::If native or heparinized blood is passed slowly through a column of glass beads at room temperature, the number of platelets removed from the initial drop emerging from the column is less than that removed from the final drop. At 4 degrees C. this difference disappears. If the blood is passed rapidly through such colu...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.20.1.56
更新日期:1967-01-01 00:00:00
abstract::A woman with peripheral vascular disease developed cytomegalovirus colitis following repair of abdominal aortic aneurysm. Cytomegalovirus colitis developing in an immunocompetent individual may be caused by a breach in the integrity of the mucosal lining of the colon from various causes and should alert the clinician ...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.51.6.475
更新日期:1998-06-01 00:00:00
abstract::Programmed death ligand 1 (PD-L1) is the principal ligand of programmed death 1 (PD-1), a coinhibitory receptor that can be constitutively expressed or induced in myeloid, lymphoid, normal epithelial cells and in cancer. Under physiological conditions, the PD-1/PD-L1 interaction is essential in the development of immu...
journal_title:Journal of clinical pathology
pub_type: 杂志文章,评审
doi:10.1136/jclinpath-2017-204853
更新日期:2018-03-01 00:00:00
abstract:AIM:Definitive distinction between low-grade astrocytoma and astrogliosis is a long-standing difficulty due to their similar histopathological characteristics. To clarify differences in biological significance, this study focused on various components of the cell cycle machinery and proliferation as key parameters, com...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.2007.051961
更新日期:2008-03-01 00:00:00
abstract:AIMS:To assess the prevalence of gastric giardiasis in patients undergoing upper gastrointestinal endoscopy, and to define the clinicopathological correlates of gastric Giardia lamblia infection. METHODS:Consecutive gastric biopsy specimens (n = 15,023) from 11,085 patients, taken at Feltre City Hospital (north easter...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.45.11.964
更新日期:1992-11-01 00:00:00
abstract::A comparison is made of tests for thyroglobulin antibody, using gel diffusion, electroprecipitin, bentonite flocculation, tanned red cell agglutination, and latex slide agglutination techniques on sera from cases of Hashimoto's disease and other thyroid disorders. Any increase in gamma globulin was also noted from the...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.15.2.153
更新日期:1962-03-01 00:00:00
abstract::During an outbreak of gastroenteritis in a paediatric ward astroviruses were found in faeces from 17 to 27 symptomatic children and from four of 14 members of the staff with diarrhoea. No viruses were found in 10 asymptomatic children. Fourteen of the 21 astrovirus excretors were free of any recognised pathogens, but ...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.30.10.948
更新日期:1977-10-01 00:00:00
abstract::Xanthine oxidase (XO) activity was found to be negligible in sterile human urines (less than 480 units, as presently defined, per litre). Significant XO activity was found in all urines containing more than 10(5) bacteria/ml, except for urines infected with Staphylococcus aureus, in which XO activity ranged from 347 t...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.31.5.444
更新日期:1978-05-01 00:00:00
abstract:AIMS:To assess the significance of flat epithelial atypia (FEA) on core biopsy by evaluating the proportion of cases upgraded to in-situ and invasive carcinoma on further sampling with vacuum-assisted biopsy (VAB) or diagnostic surgical biopsy. METHODS:A retrospective analysis was performed of all core biopsies contai...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jclinpath-2011-200176
更新日期:2011-11-01 00:00:00
abstract::A method is described of measuring the response of human lymphocytes to phytohaemagglutinin stimulation using iododeoxyuridine labelled with the gamma-emitting isotope (125)I. The results indicate useful clinical applications. ...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.22.5.558
更新日期:1969-09-01 00:00:00
abstract::An enzyme linked immunosorbent assay (ELISA) to measure free serum IgG antibodies to Pseudomonas aeruginosa in patients with cystic fibrosis was developed. Seven strains of P aeruginosa cells, treated with glutaraldehyde and representing the most commonly isolated serotypes in our cystic fibrosis unit, were used. The ...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.39.10.1124
更新日期:1986-10-01 00:00:00
abstract:AIMS:Glypican 3 (GPC3) is a heparan sulphate proteoglycan that shows elevated levels in the serum of patients with hepatocellular carcinoma (HCC), but not in healthy blood donors or patients with benign liver disease. This study explores the value of GPC3 expression for diagnosis of HCC by immunohistochemistry in liver...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.2010.075374
更新日期:2010-07-01 00:00:00
abstract::Neoplastic and non-neoplastic oxyphil cells in thyroid disorders were investigated for enzyme and synthetic activity, ultrastructural features, and immune complex deposition. A reduced but definite content of thyroglobuliin and similar enzyme profiles and ultrastructural features in all types of oxyphill change were f...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.39.8.908
更新日期:1986-08-01 00:00:00
abstract:AIMS:The aims of the study were to compare bacterial recovery following storage of sputum samples at 20 degrees C room temperature and 4 degrees C (refrigerated) for 24 h, and to determine the effect of postage on viable bacterial numbers. METHODS:A total of 38 individual sputum samples from clinically stable patients...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.2007.051490
更新日期:2008-03-01 00:00:00
abstract::Antigenic extracts were prepared from Aspergillus fumigatus, A niger, A flavus and A terreus for use in enzyme linked immunosorbent assay (ELISA) and immunodiffusion (ID) tests for Aspergillus antibodies to determine whether the use of antigenic extracts from species other than A fumigatus increased the sensitivity of...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.42.11.1215
更新日期:1989-11-01 00:00:00
abstract::The incidence of placenta accreta, defined as the abnormal adherence of the placenta to the uterine wall, has been increasing alarmingly in the developed as well as the developing world. There is considerable maternal morbidity and mortality related to the condition. The pathophysiology focuses on the balance between ...
journal_title:Journal of clinical pathology
pub_type: 杂志文章,评审
doi:10.1136/jcp.2008.055202
更新日期:2008-12-01 00:00:00
abstract::Sixty six women with first or second trimester fetal loss were investigated for the presence of lupus anticoagulant by routine coagulation tests and the dilute Russell's viper venom time with a platelet neutralisation procedure, and for raised anticardiolipin antibodies by an enzyme linked immunosorbent assay. Of 35 w...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.44.1.45
更新日期:1991-01-01 00:00:00
abstract::Visceral candidiasis in 56 patients, 39 of whom were thought to be immune deficient, was investigated using three serological detection methods--whole cell agglutination, haemagglutination, and counterimmunoelectrophoresis for antibodies; two determinations of circulating antigens--haemagglutination inhibition and lat...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.40.10.1162
更新日期:1987-10-01 00:00:00
abstract:AIMS:To determine the sensitivity and specificity of a multiplex PCR assay for the contemporary identification of major species involved in oral candidiasis, without extraction and purification of DNA from the samples under investigation; and evaluation of this method in comparison with routine phenotypic culture ident...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.2006.040782
更新日期:2007-09-01 00:00:00
abstract::A technique is described whereby inclusion-bearing cells identified by light microscopy in stained smears of urinary sediment were reprocessed for examination in the electron microscope. The nuclei of the abnormal cells were found to contain numerous virus particles, 35 nm in diameter, which morphologically resembled ...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.30.11.1015
更新日期:1977-11-01 00:00:00
abstract:BACKGROUND:In experimental glomerulonephritis, inhibition of cyclooxygenase 2 (COX-2) enhances the renocortical expression of pathogenic alpha(v) integrins. AIMS:To study whether this effect is mediated by prostaglandin E(2) (PGE(2)) acting through its EP(3) receptor in cultured rat mesangial cells (MCs). METHODS:MCs...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.2003.013169
更新日期:2004-05-01 00:00:00
abstract::The potencies of six commercially manufactured heparins have been measured by the British Pharmacopoeial (BP) assay and activated partial thromboplastin time (APTT), protamine sulphate, and anti-Xa assays. The APTT/BP potency ratios were found to vary with the preparation but this was not dependent on the tissue sourc...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.33.6.562
更新日期:1980-06-01 00:00:00
abstract:AIMS:To determine how epithelial and stromal thymidine phosphorylase expression affects angiogenesis, rapid tumour growth, and decreased apoptotic activity in cervical cancer at varying stages of progression. METHODS:Epithelial and stromal thymidine phosphorylase expression, the microvessel count (reflected by factor ...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.52.8.598
更新日期:1999-08-01 00:00:00