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. Surgical specimens from spontaneous malignant (n = 20) and benign mammary neoplasms (n = 20) were processed for routine histological examination and immunohistochemical study. An indirect immunoperoxidase technique, using monoclonal antibody E9 against horse MT was employed. Intensity of the stain, the percentage of immunoreactive tumour cells and immunohistochemical overexpression of MT was estimated for each case. Metallothionein over-expression, defined as those cases with more than 10% immunopositive cells, was detected in both benign and malignant mammary tumours. However, strong immunostaining intensity was seen in benign tumours, whereas in malignant tumours immunopositive cells stained weakly. Positive MT immunostaining occurred in neoplastic epithelial cells, and some chondrocytes present in mixed mammary tumours. However, staining intensity was variable in immunopositive cells. Differences in staining intensity between the primary malignant mammary tumour, tumour emboli and metastatic cells within a lymph node were also noted. Myoepithelial cells and connective tissue did not stain for MT. We concluded that metallothionein immunostaining cannot be used as a diagnostic or prognostic tool in canine mammary neoplasms. However, results of this study support the hypothesis that MT has a role in tumour proliferation and tumour progression.
journal_name
Histol Histopatholjournal_title
Histology and histopathologyauthors
Fuentealba IC,Mullins JEdoi
10.14670/HH-14.51subject
Has Abstractpub_date
1999-01-01 00:00:00pages
51-61issue
1eissn
0213-3911issn
1699-5848journal_volume
14pub_type
杂志文章abstract：BACKGROUND:Lipopolysaccharide (LPS) induced inflammation often leads to lung injury, in which pulmonary recruitment of neutrophils plays a pivotal role. Inflammatory processes are influenced by CD26/DPP4, highly expressed in lungs. Asthma induced CD26/DPP4 deficient (CD26/DPP4⁻) Fischer (F) 344 rats suffering from a tr...
journal_title：Histology and histopathology
pub_type： 杂志文章
doi：10.14670/HH-18-117
更新日期：2019-10-01 00:00:00
abstract：:The changes of implanted Harding-Passey melanoma in C57Bl/6J mice following treatment with wholebody hyperthermia were studied. The treated tumours showed a progressive growth delay, cellular and architectural irregularities as well as cell injury characteristics. The presence of distended and irregular blood vessels,...
journal_title：Histology and histopathology
pub_type： 杂志文章
doi：
更新日期：1987-10-01 00:00:00
abstract：:The lower respiratory tract of the sheep was studied by light-microscopical immunocytochemistry for serotonin, cholecystokinin, somatostatin, bombesin and calcitonin during different periods of lung development; embryonic, foetal and postnatal. At embryonic period only intraepithelial serotonin-containing cells as sol...
journal_title：Histology and histopathology
pub_type： 杂志文章
doi：
更新日期：1992-10-01 00:00:00
abstract：:Equine endometritis eosinophilica (EE) is rarely described and its diagnostic criteria are not defined. The aim of this study was to characterize histological features of EE. A data base (1995-2013) was searched for biopsies with increased eosinophils. This study included all biopsies with this diagnosis and represent...
journal_title：Histology and histopathology
pub_type： 杂志文章
doi：10.14670/HH-11-872
更新日期：2017-11-01 00:00:00
abstract：:The purpose of this study is to visualize topographical changes of serum proteins, albumin and immunoglobulin, passing through mouse glomerular capillary loops and their reabsorption in renal proximal tubules by immunohistochemistry in combination with our "in vivo cryotechnique". The "in vivo cryotechnique" was perfo...
journal_title：Histology and histopathology
pub_type： 杂志文章
doi：10.14670/HH-20.807
更新日期：2005-07-01 00:00:00
abstract：:Neural stem cells are defined as clonogenic cells with self-renewal capacity and the ability to generate all neural lineages (multipotentiality). Cells with these characteristics have been isolated from the embryonic and adult central nervous system. Under specific conditions, these cells can differentiate into neuron...
journal_title：Histology and histopathology
pub_type： 杂志文章,评审
doi：10.14670/HH-19.1261
更新日期：2004-10-01 00:00:00
abstract：:Chronic liver diseases are commonly associated with tissue hypoxia that may cause inflammation, oxidative stress, liver cell injury and increased nuclear transcriptional regulation. The hepatic response to chronic hypoxia at the molecular level has not yet been clearly understood until now. The aim of this study is to...
journal_title：Histology and histopathology
pub_type： 杂志文章
doi：
更新日期：2013-04-01 00:00:00
abstract：:Versican, a large extracellular matrix proteoglycan accumulates in tumor stroma and plays a key role in both malignant transformation and tumor progression. Increased versican expression has been observed in a wide range of malignant tumors, and has been associated with both cancer relapse and poor patient outcomes in...
journal_title：Histology and histopathology
pub_type： 杂志文章,评审
doi：10.14670/HH-28.701
更新日期：2013-06-01 00:00:00
abstract：:E(epithelial)-cadherin is a member of a calcium-dependent family of cell surface glycoproteins involved in cell-cell adhesion and morphogenesis. Catenins are a large family of proteins that connect the cadherins to the cytoskeleton. They are important for cadherin function and for transducing signals involved in speci...
journal_title：Histology and histopathology
pub_type： 杂志文章
doi：10.14670/HH-16.1097
更新日期：2001-10-01 00:00:00
abstract：:Processing adult human trabecular bone to obtain tissue sections suitable for research or diagnostic purposes has always been challenging, particularly in the preparation of adult bone specimens for advanced immunohistochemistry applications. In contrast to the majority of soft tissues, decalcified bone samples perfor...
journal_title：Histology and histopathology
pub_type： 杂志文章
doi：10.14670/HH-28.1605
更新日期：2013-12-01 00:00:00
abstract：:Neurodegenerative and muscle diseases bear both complex and multifactorial pathologies. An efficacious and robust therapeutic option to treat these diseases is yet to be elucidated. At such a time, mesenchymal stem cells have drawn significant attention due to their immunomodulatory and regenerative properties. Accumu...
journal_title：Histology and histopathology
pub_type： 杂志文章,评审
doi：10.14670/HH-11-951
更新日期：2018-07-01 00:00:00
abstract：:Oral squamous cell carcinoma (OSCC) is the most common malignancy of the oral cavity with a poor 5-year survival rate, due in large part to the presence of metastatic disease at initial diagnosis. In recent years, a number of studies have examined the oral tumor microenvironment to asses the potential dynamic balance ...
journal_title：Histology and histopathology
pub_type： 杂志文章,评审
doi：10.14670/HH-25.917
更新日期：2010-07-01 00:00:00
abstract：:In view of the limitations of conventional prognostic factors such as differentiation degree, metastatic lymph nodes, hormonal receptors and others, especially when early lesions are found, additional new markers have been studied, such as gene amplification and cell proliferation index, in order to choose the appropr...
journal_title：Histology and histopathology
pub_type： 杂志文章
doi：
更新日期：1994-07-01 00:00:00
abstract：:Mesothelial cells (MC) obtained from the human omentum are a good alternative to the use of endothelial cells (EC) as a covering for vascular prostheses of polytetrafluoroethylene (PTFE), given the antithrombogenic properties and good behavior in vitro of mesothelial cells. We studied the behaviour of mesothelial cell...
journal_title：Histology and histopathology
pub_type： 杂志文章
doi：
更新日期：1995-10-01 00:00:00
abstract：:The aim of this study was to demonstrate the morphology and matrix synthesis of embryonic rat liver cells (day 18 of gestation) in organoid cultures (high density cultures) with electron microscopic and immunomorphological techniques. For this purpose the cells of embryonic rat livers were isolated enzymatically and g...
journal_title：Histology and histopathology
pub_type： 杂志文章
doi：
更新日期：1991-04-01 00:00:00
abstract：:We report a case of subcutaneous fat necrosis of a newborn child which appeared 9 days after birth and was cured without any complications. We propose the reclassification of the etiological factors accompanying this lesion by classifying them in a plurietiological syndrome with some basic or essential factors and oth...
journal_title：Histology and histopathology
pub_type： 杂志文章
doi：
更新日期：1990-01-01 00:00:00
abstract：:Aurora A and Aurora B are serine-threonine kinase proteins which have both been implicated in human carcinogenesis through development of aneuploidy and chromosomal instability. The aim of the study is to assess the correlation of both markers with clinical and pathological parameters in patients with bladder cancer o...
journal_title：Histology and histopathology
pub_type： 杂志文章
doi：10.14670/HH-25.1371
更新日期：2010-11-01 00:00:00
abstract：:Melanopsin-expressing retinal ganglion cells (mRGCs) constitute a system in the mammalian retina used for irradiance detection, regulating non-image forming functions, such as photoentrainment of circadian rhythms, control of the pupillary light reflex, masking response, light-regulated melatonin secretion, and modula...
journal_title：Histology and histopathology
pub_type： 杂志文章,评审
doi：10.14670/HH-18-138
更新日期：2019-12-01 00:00:00
abstract：:Cerebral cavernous malformations (CCMs) are described as vascular lesions consisting of endothelial-lined dilated vessels embedded in a connective tissue sheath without intervening parenchyma between them. Their anatomical connections with the normal blood vessels are still enigmatic and the fine three-dimensional (3-...
journal_title：Histology and histopathology
pub_type： 杂志文章
doi：10.14670/HH-29.1071
更新日期：2014-08-01 00:00:00
abstract：:Fatty acid binding proteins (FABPs) are 15-kDa proteins responsible for the transport of fatty acids both intracellularly and extracellularly. Consisting of 12 different isoforms, some of the proteins have been found to be released in the serum and to be correlated with various diseases including cancer. Differential ...
journal_title：Histology and histopathology
pub_type： 杂志文章,评审
doi：10.14670/HH-18-014
更新日期：2019-01-01 00:00:00
abstract：:Amyloidosis is a group of diseases characterized by the extracellular deposition of protein that contains non-branching, straight fibrils on electron microscopy (amyloid fibrils) that have a high content of beta-pleated sheet conformation. Various biochemically distinct proteins can undergo transformation into amyloid...
journal_title：Histology and histopathology
pub_type： 杂志文章,评审
doi：10.14670/HH-20.1295
更新日期：2005-10-01 00:00:00
abstract：:Cancer is the subject of intense research around the world, but many questions about how the disease works remain unanswered. How exactly does cancer start and how do tumours grow? In fact, at present there are ten times more anticancer drugs being tested in clinical trials than there were 15 years ago. However, many ...
journal_title：Histology and histopathology
pub_type： 杂志文章,评审
doi：10.14670/HH-27.157
更新日期：2012-02-01 00:00:00
abstract：:Primordial germ cells (PGCs) are the founder cells of all gametes. PGCs differentiate from pluripotent epiblasts cells by mesodermal induction signals during gastrulation. Although PGCs are unipotent cells that eventually differentiate into only sperm or oocytes, they dedifferentitate to pluripotent stem cells known a...
journal_title：Histology and histopathology
pub_type： 杂志文章,评审
doi：10.14670/HH-26.643
更新日期：2011-05-01 00:00:00
abstract：:Using histopathological analysis of semi-thin sections stained with toluidine blue, we observed profound pathological changes in the islets of Langerhans of hamsters infected with the scrapie agent (strain 139H). These included cytoplasmic vesicles, nuclear swelling, and vacuolization in the islet cells. Two types of ...
journal_title：Histology and histopathology
pub_type： 杂志文章
doi：
更新日期：1996-01-01 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：:Cyclin A, cyclin E, BUBR1, MAD2 and Aurora A are all cell-cycle regulatory proteins and have been proven to play crucial roles in carcinogenesis. However, their expression patterns in invasive ductal breast carcinoma (IDBC) are controversial and unclear. In this study, we examined the expression status of these candid...
journal_title：Histology and histopathology
pub_type： 杂志文章
doi：10.14670/HH-26.761
更新日期：2011-06-01 00:00:00
abstract：:Anthracyclines are one of the most effective anticancer drugs ever developed, but their clinical use has been hampered by the risk of severe cardiotoxicity. In this study, we investigated whether rabbits exposed to a different cumulative dose of anthracycline suffer from immunohistochemically detectable vascular toxic...
journal_title：Histology and histopathology
pub_type： 杂志文章
doi：10.14670/HH-26.551
更新日期：2011-05-01 00:00:00
abstract：:Although testicular germ cell tumors (TGCTs) are relatively uncommon, they are particularly important, as they tend to affect children and young men, the most common tumor being in males aged from 20 to 40 years, and the incidence has been increasing in the last years. TGCTs comprise two major histologic groups: semin...
journal_title：Histology and histopathology
pub_type： 杂志文章,评审
doi：10.14670/HH-29.999
更新日期：2014-08-01 00:00:00
abstract：:Lymphatic vessels afferent to the popliteal nodes in young adult rats and guinea pigs were interrupted at the lowest edge of the popliteal fossa, and regressive changes in the nodes occurring 4 to 16 or 18 weeks after surgery were re-examined histologically. In the rat, some popliteal nodes were drained by lymphatic c...
journal_title：Histology and histopathology
pub_type： 杂志文章
doi：
更新日期：1993-07-01 00:00:00
abstract：:The study was carried out on the distribution of neurons and fibres which contain the Corticotropin releasing factor-like (CRF) immunoreactivity in the encephalon of two species of teleosts, Gambusia affinis and Salmo trutta. The peroxidase-antiperoxidase (PAP) immunocytochemical technique was employed. The present st...
journal_title：Histology and histopathology
pub_type： 杂志文章
doi：
更新日期：1994-04-01 00:00:00
