Through the use of immunohistochemical techniques, human chorionic gonadotropin has been localized to syncytiotrophoblastic cells of immature placenta, hydatidiform mole, chorioadenoma destruens, and choriocarcinoma. No gonadotropin has been detected in cytotrophoblast. Evidence is discussed which suggests that syncytiotrophoblast is the cell of origin of human chorionic gonadotropin. The obser...

This review presents recent data on the biological properties of cancer stem cells in brain gliomas. The possibilities of using of experimental methods of cell culture and immunohistochemical identification of tumor stem cells as a part of neurospheres (tumorospheres) are shown. Methodological features of neurospheres culture are described. Literature data about the dependence of neurospheres f...

Thyroid cancer is the most common endocrine malignancy and its incidence goes on increasing worldwide. The majority of thyroid tumours comprise well-differentiated (papillary and follicular) thyroid carcinomas that usually carry an excellent prognosis, while a minority progress to poorly differentiated carcinoma (PDTC) and, ultimately, to the highly aggressive and lethal undifferentiated carcin...

OBJECTIVE To analyze infiltration patterns of IDH1 mutant diffuse gliomas into the brain by identification of single tumor cells applying an antibody specific to mutant IDH1 R132H protein. DESIGN Immunohistochemical analysis. SETTING University hospital. PATIENTS Whole-brain and hemisphere sections of 4 patients diagnosed with diffuse glioma. RESULTS Tumor cells were identified in areas...

Collecting duct carcinoma (CDC) is a rare, highly aggressive malignant neoplasm that arises from the collecting duct epithelium of the kidney. CDC was reported to coexist with renal cell and transitional cell carcinomas. We report a rare case of CDC associated with oncocytoma, confirmed by the characteristic histological appearance and immunohistochemistry. We also review the epidemiological, h...

Even if βAPP remains the gold standard in identifying diffuse axonal injuries, other histological, ultrastructure, histochemical, or immunohistochemical markers may aid the diagnosis and may better characterize this traumatic brain pathology. Moreover, associated changes, including neuronal body changes, the presence of microglial clusters, and so on, when identified in a traumatic context, sho...

Initially recognized through microarray-based gene expression profiling, basal-like breast cancer, for which we lack effective targeted therapies, is an aggressive form of carcinoma with a predilection for younger women. With some success, immunohistochemical studies have attempted to reproduce the expression profile classification of breast cancer through identification of subtype-specific bio...

The aim of the present study was to characterise immunohistochemically and ultrastructurally the neuroendocrine cells in the pulmonary systems of uraemic rats. Pieces of lung and trachea were collected 1, 2 and 4 weeks after nephrectomy. Paraffin-embedded sections were stained with H+E and by silver impregnation. For the identification of neuroendocrine cells immunohistochemical reactions were ...

Supplemental Text Human ES cell controls Immunohistochemical Analysis of Pluripotency Markers Teratoma Formation Embryoid Bodies Chromatin Immunoprecipitation Assay Antibodies Location Analysis Protocols Control ChIP experiments Array Design Selection of Regions and Design of Subsequences Compiled Probes and Controls Replicate Data Sets Array Scanning and Data Extraction Data Normalization and ...

Juxtacellular neuronal labelling is a method which allows neurophysiologists to fill physiologically-identified neurons with small positively-charged marker molecules. Labelled neurons are identified by histochemical processing of brain sections along with immunohistochemical identification of neuropeptides, neurotransmitters, neurotransmitter transporters or biosynthetic enzymes. A microcontro...