Abstract:
:This report presents preliminary observations on the distribution of an epithelial surface antigen in human trophoblastic cells studied with the monoclonal antibody Ber-EP4 by means of an immunoperoxidase technique. Three cases of gestational choriocarcinoma and 20 cases of both villous and extravillous trophoblast, including one complete hydatidiform mole and one exaggerated placental site, were examined with a panel of monoclonal antibodies against epithelial antigen (Ber-EP4), cytokeratin (AE1 and AE3), vimentin (VIM), carcinoembryonic antigen (CEA) and epithelial membrane antigen (EMA), as well as with polyclonal antibodies against the beta subunit of human chorionic gonadotropin (hCG), human placental lactogen (hPL) and placental alkaline phosphatase (P1AP). While, as anticipated, all currently defined trophoblastic cell lines expressed low molecular weight cytokeratin only first trimester cytotrophoblastic cells and their neoplastic counterpart were found to possess the epithelial antigen detected by Ber-EP4. This distinctive property of the cytotrophoblast declined rapidly after eight weeks of gestational age but persisted in second trimester molar tissue and was prominently displayed in choriocarcinoma. By identifying the presence of cytotrophoblastic cell lines in malignancy more reliably than can be achieved with conventional panels of hCG, hPL and P1AP, Ber-EP4 has potential diagnostic utility in gestational trophoblastic disease. Our findings also suggest that the monoclonal anti-CEA antibody may be helpful in distinguishing between syncytiotrophoblastic cells and non-reactive multinucleate cells of the intermediate trophoblast.
journal_name
Histol Histopatholjournal_title
Histology and histopathologyauthors
Babury RA,Moscovic EAsubject
Has Abstractpub_date
1993-04-01 00:00:00pages
323-8issue
2eissn
0213-3911issn
1699-5848journal_volume
8pub_type
杂志文章abstract::Primary perivascular epithelioid cell tumor (PEComa) of the liver is a very rare example of an emerging family of hepatic PEC tumors. Only few cases have been described so far. We report the case of a large but benign hepatic PEComa in a 53-year-old man without signs of tuberous sclerosis. In contrast to recently desc...
journal_title:Histology and histopathology
pub_type: 杂志文章
doi:10.14670/HH-23.1185
更新日期:2008-10-01 00:00:00
abstract::To clarify the role of REG IV, a new member of the regenerating gene (REG) family, in tumorigenesis and progression of colorectal carcinoma (CRC), 320 CRC specimens, 123 corresponding adjacent non-cancerous mucosa (ANCMs), 46 corresponding non-adjacent non-cancerous mucosa (NANCMs) and 86 adenomas were investigated im...
journal_title:Histology and histopathology
pub_type: 杂志文章
doi:10.14670/HH-25.473
更新日期:2010-04-01 00:00:00
abstract::Thrombospondin-1 (TSP-1) is a matrix protein implicated in mechanisms of wound healing. TSP-1 contains the sequence cysteine-serine-valine-threonine-cysteine-glycine (CSVTCG) that has been shown to function primarily as a cell adhesion domain. Our laboratory has isolated a novel receptor specific for the CSVTCG adhesi...
journal_title:Histology and histopathology
pub_type: 杂志文章
doi:10.14670/HH-13.967
更新日期:1998-10-01 00:00:00
abstract::Smads are signal transducers for the members of the TGF-beta superfamily. Of these Smads, Smad4 is essential for TGF-beta signaling. The purpose of this study was to elucidate Smad4 expression and localization in 65 gastric adenomas, 49 intestinal-type and 39 diffuse type of gastric adenocarcinomas (including 12 cases...
journal_title:Histology and histopathology
pub_type: 杂志文章
doi:10.14670/HH-20.543
更新日期:2005-04-01 00:00:00
abstract::Cell shape is mainly determined by biophysical constraints, interacting according to non-linear dynamics upon the basic units provided by the genome. In turn, the specific configuration a cell acquires plays a fundamental, permissive role in modulating gene expression and many other complex biological functions. Cell ...
journal_title:Histology and histopathology
pub_type: 杂志文章,评审
doi:10.14670/HH-28.155
更新日期:2013-02-01 00:00:00
abstract::To determine the appropriate time for bone reconstruction after irradiation, the healing process after autogenous iliac bone transplantation in the irradiated parietal bone was examined by scanning electron microscopy and light microscopy. Bone transplantation was carried out at the second and the fourth weeks after C...
journal_title:Histology and histopathology
pub_type: 杂志文章
doi:10.14670/HH-15.7
更新日期:2000-01-01 00:00:00
abstract::This study explores the possibility of a regulatory role for cytokine IL-10 in platelet aggregation as an active vascular repair mechanism. Endothelial cells from human umbilical cord vein were cultured in the presence of different IL-10 concentrations (0-100 ng/ml). Platelet-rich plasma was then added to these cultur...
journal_title:Histology and histopathology
pub_type: 杂志文章
doi:10.14670/HH-18.695
更新日期:2003-07-01 00:00:00
abstract::Light and electron microscopy were used to analyze the epithelial lining of odontogenic cysts excised from edentulous regions of the jaws. Clinically, three cases were identified as keratocysts, and 21 cases as cysts other than keratocysts ("non-keratocysts"). The epithelium of the former was found to achieve keratini...
journal_title:Histology and histopathology
pub_type: 杂志文章
doi:
更新日期:1996-04-01 00:00:00
abstract::This study deals with myocardial preservation after 24 hours of continuous, hypothermic and oxygenated perfusion with Cape Town (CT) solution, focusing on the morphological changes produced by preservation and reperfusion, and their possible relationship to the composition of the solution and the immediate hemodynamic...
journal_title:Histology and histopathology
pub_type: 杂志文章
doi:10.14670/HH-13.21
更新日期:1998-01-01 00:00:00
abstract::Immunocytochemical demonstration of metallothionein (MT) has been reported as a useful prognostic tool in human breast cancer. The aim of this study was to determine the immunohistochemical location of MT in canine mammary tumours and its possible correlation with the morphologic characteristics of these tumours. Surg...
journal_title:Histology and histopathology
pub_type: 杂志文章
doi:10.14670/HH-14.51
更新日期:1999-01-01 00:00:00
abstract::Dramatical development of molecular genetics has been disclosing the molecular mechanism of Duchenne muscular dystrophy (DMD) and Becker muscular dystrophy (BMD). DMD gene product, dystrophin, is a submembranous cytoskeletal protein and many dystrophin-associated proteins (DAPs) have been identified, such as utrophin,...
journal_title:Histology and histopathology
pub_type: 杂志文章,评审
doi:10.14670/HH-15.753
更新日期:2000-07-01 00:00:00
abstract::Treatment of neurodegenerative diseases by classical pharmacotherapy is restricted by blood-brain barrier which prevents access to the brain of potentially therapeutic molecules. Recent progress in the knowledge of pathophysiological molecular processes, and in the development of molecular biotechnology have opened th...
journal_title:Histology and histopathology
pub_type: 杂志文章,评审
doi:10.14670/HH-16.883
更新日期:2001-07-01 00:00:00
abstract::The view of how astrocytes, a type of glial cells, contribute to the functioning of the central nervous system (CNS) has changed greatly in the last decade. Although glial cells outnumber neurons in the mammalian brain, it was considered for over a century that they played a subservient role to neurons. This view chan...
journal_title:Histology and histopathology
pub_type: 杂志文章,评审
doi:10.14670/HH-26.277
更新日期:2011-02-01 00:00:00
abstract::Current data on the localization of neuropeptide Y-related peptides in the hypothalamo-pituitary-adrenal gland (HPA) axis as well as the effects of these peptides on the function of cells comprising HPA axis are presented and discussed. The action of neuropeptide Y, peptide YY, and pancreatic polypeptide on HPA axis a...
journal_title:Histology and histopathology
pub_type: 杂志文章,评审
doi:
更新日期:1996-04-01 00:00:00
abstract::The characteristics and distribution pattern of retinal afferent terminals making synaptic contacts on narrow field vertical neurons in the stratum griseum superficiale of the rabbit superior colliculus were studied using the Golgi-gold substitution technique in combination with either autoradiographic or degenerative...
journal_title:Histology and histopathology
pub_type: 杂志文章
doi:
更新日期:1993-01-01 00:00:00
abstract::Systematic studies on hepatic stellate cells and myofibroblasts have so far mainly focused on cells located in the perisinusoidal space of Disse, the so-called littoral compartment. Here, these cells play a key role for intralobular fibrogenesis and sinusoidal capillarization. However, advanced hepatic fibrosis and ci...
journal_title:Histology and histopathology
pub_type: 杂志文章
doi:10.14670/HH-14.719
更新日期:1999-07-01 00:00:00
abstract::PML is a tumour suppressor inactivated in Acute Promyelocytic Leukaemia (APL). PML is the essential component of a subnuclear structure called the PML nuclear body (PML-NB), which is disrupted in APL. By targeting different cellular proteins to this structure, PML can either hamper or potentiate their functions. The P...
journal_title:Histology and histopathology
pub_type: 杂志文章,评审
doi:10.14670/HH-22.937
更新日期:2007-08-01 00:00:00
abstract::The rapid Golgi method, combined with current optical and electronmicroscopical techniques, was used in three central gangliogliomas and in one dysplastic gangliocytoma of the cerebellum to study the morphology of ganglionic cells. Gangliogliomas were composed of bipolar, fusiform and radiate cells with dense core and...
journal_title:Histology and histopathology
pub_type: 杂志文章
doi:
更新日期:1990-07-01 00:00:00
abstract::Griffonia simplicifolia agglutinin I-B4 (GSAI-B4) has broader specificity for B antigen variants and can recognize the antigens in a wide variety of human tissues. Thus, the concentration range of GSAI-B4 required for staining and the susceptibility of staining to alpha-galactosidase digestion is presumed to correlate...
journal_title:Histology and histopathology
pub_type: 杂志文章
doi:
更新日期:1997-04-01 00:00:00
abstract::To investigate the matrix metalloproteinase (MMP)-9, (MMP)-13, E-Cadherin and Ki-67 expressions in road pavers' skin chronically exposed to bitumen products in order to contribute to a better understanding of the earlier tissue alteration. Skin punch biopsies from 16 daily exposed workers and a control group were stud...
journal_title:Histology and histopathology
pub_type: 杂志文章
doi:10.14670/HH-18-116
更新日期:2019-10-01 00:00:00
abstract::Chaperone-mediated autophagy (CMA), a selective form of autophagy, where cellular proteins with KFERQ-like motif are targeted to the lysosome for degradation, is necessary to maintain cellular homeostasis. The role of CMA in neurodegenerative diseases has been extensively studied in the past decades, with defects in t...
journal_title:Histology and histopathology
pub_type: 杂志文章,评审
doi:10.14670/HH-18-202
更新日期:2020-07-01 00:00:00
abstract::The immunohistochemical distribution of 15 blood coagulation factors in the germinal centers (GCs) of human Peyer's patches (PPs) was studied. Although factor VIII, active alpha-thrombin, and fibrinogen were hardly evident in the GCs, the majority of coagulation factors, such as kallikrein, high-molecular-weight kinin...
journal_title:Histology and histopathology
pub_type: 杂志文章
doi:
更新日期:1992-04-01 00:00:00
abstract::A study was undertaken to analyze the spatio-temporal pattern of mesenchymal cell proliferation in the developing palate of quail. Quail embryos were grown in shell-less culture. The developing palates were labelled with 3H-thymidine between culture days 2-6 (which corresponded in vivo incubation days 5-9), and proces...
journal_title:Histology and histopathology
pub_type: 杂志文章
doi:
更新日期:1995-07-01 00:00:00
abstract:BACKGROUND:Gastric Cardiac Cancer (GCC) has high incidence and poor prognosis requiring early screening of high-risk populations. Minichromosome maintenance (MCM) proteins are used as diagnostic-biomarkers in many cancers but not validated for GCC. We evaluate MCM protein 2 (MCM2), comparing it with the validated marke...
journal_title:Histology and histopathology
pub_type: 杂志文章
doi:10.14670/HH-28.481
更新日期:2013-04-01 00:00:00
abstract::In the present work we analyze the cerebellum of chronic parkinsonian monkeys in order to clarify whether chronic mesencephalic depletion is associated with long term activation of the cerebellar neurons in chronic Parkinsonism. In our study, we observed a persistent activation of Purkinje cells in the cerebellum of c...
journal_title:Histology and histopathology
pub_type: 杂志文章
doi:10.14670/HH-27.89
更新日期:2012-01-01 00:00:00
abstract::To understand the role of microtubules and microfilaments in regulating endothelial monolayer integrity and repair, and since microtubules and microfilaments show some co-alignment in endothelial cells, we tested the hypothesis that microtubules organize microfilament distribution. Disruption of microtubules with colc...
journal_title:Histology and histopathology
pub_type: 杂志文章
doi:10.14670/HH-20.455
更新日期:2005-04-01 00:00:00
abstract::Telocytes (TCs) represent a new distinct type of interstitial cells found in many organs, including lungs. TCs are mainly defined by a small cellular body from which arise very long (hundreds of micrometers) extensions named telopodes. During the last years, TCs were characterized in respect with their microRNA profil...
journal_title:Histology and histopathology
pub_type: 杂志文章,评审
doi:10.14670/HH-11-807
更新日期:2016-12-01 00:00:00
abstract::The present study analyzed the temporal and spatial expression of TGF-beta isoforms and activated pSmad2 and p38MAPK during epithelial debridement wound repair, using chick cornea by immunohistochemistry. Normal corneas showed low-level TGF-betas staining. Following wounding, TGF-beta1 expression was strong in the Bow...
journal_title:Histology and histopathology
pub_type: 杂志文章
doi:10.14670/HH-24.1405
更新日期:2009-11-01 00:00:00
abstract::Oligodendrocytes are the myelinating cells of the central nervous system. Since many studies of demyelinating diseases focus their research on this cell type, there is growing interest for obtaining reliable markers that can specifically recognize oligodendroglia. Established markers are the myelin-associated neurite ...
journal_title:Histology and histopathology
pub_type: 杂志文章
doi:10.14670/HH-11-640
更新日期:2015-12-01 00:00:00
abstract::The techniques for light and electron microscopic radioautography developed in our laboratory are described. The outlines of the applications to various tissues and organs are also briefly summarized. First, the techniques are explained in detail. These techniques can be divided into two categories, i.e., chemical fix...
journal_title:Histology and histopathology
pub_type: 杂志文章,评审
doi:
更新日期:1997-10-01 00:00:00