scholarly journals THE GOLGI APPARATUS IN CHICK CORNEAL EPITHELIUM: CHANGES IN INTRACELLULAR POSITION DURING DEVELOPMENT

1970 ◽  
Vol 45 (1) ◽  
pp. 34-42 ◽  
Author(s):  
Robert L. Trelstad
Keyword(s):  
Electron Microscope ◽  
Golgi Apparatus ◽  
Basal Cell ◽  
Corneal Epithelium ◽  
Cell Layer ◽  
Corneal Stroma ◽  
Basal Cells ◽  
Basal Cell Layer ◽  
Collagenous Matrix ◽  
Basal Position

The intracellular position of the Golgi apparatuses in the basal cell layer of the corneal epithelium in embryonic and hatched chicks has been studied in the light microscope by impregnating the Golgi apparatus with silver. During two distinct periods in development the Golgi apparatuses in the basal cells shift from an apical to basal position. Each of these periods correlates in time with the appearance of an acellular collagenous matrix beneath the epithelium. Examination of the basal epithelial cells in the electron microscope confirms the intracellular shifts in position of the Golgi apparatus. The results suggest that the Golgi apparatus shifts to the basal cell pole of the corneal epithelium in order to excrete connective tissue materials into the developing corneal stroma.

scholarly journals Basal cell markers:34BE12 and p63, improving detection of basal cells in atypical prostatic lesions

2019 ◽  
Vol 13 (2) ◽  
pp. 56-58
Author(s):  
Inas A. Rasheed
Keyword(s):  
Basal Cell ◽  
Prostatic Carcinoma ◽  
Cell Layer ◽  
Intraepithelial Neoplasia ◽  
Prostatic Intraepithelial Neoplasia ◽  
Cell Detection ◽  
Basal Cells ◽  
Basal Cell Layer ◽  
Cell Markers ◽  
Malignant Lesions

Background: The diagnosis of prostatic pathology may be of challenging , as some  difficult and suspected, atypical  cases may lack basal cell layer by routine H&E sections . Antibodies against 34BE12(HMW-CK) and p63 aid the diagnosis of such cases , to distinguish benign from  malignant prostatic lesions. Objective: to identify basal cells in atypical prostatic lesions ,and distinguish benign from malignant prostatic lesions. Type of the study:  A retro-spective  study. Methods:  115cases of  paraffin embedded prostatic tissue blocks ,diagnosed as : 76 cases were benign prostatic hyperplasia( BPH) , 9 cases were  high grade –prostatic intraepithelial neoplasia (HG-PIN) , and 30 cases were prostatic carcinoma(PCa) .Sections from each blocks were prepared for immunostaining with 34BE12 and p63. Results : basal cells were detected in cases of BPH , and HG-PIN , and absent  in all cases of prostatic carcinoma ,using basal cell markers . Negative benign glands(>2) were found in 71.6% and 38.2%  for   BPH  and 57.1% and 55.6% for HG-PIN immunostained  with high molecular weight cytokeratin (34BE12) and p63 , respectively, and significantly reduced to 9.0% and 11.1% for BPH and HG-PIN, respectively  with combined using of both markers .Conclusion : Combination of both   basal cell markers (34BE12 , p63) improving basal cell detection in atypical ,suspected prostatic lesions and distinguish benign from malignant lesions.

Stratification of Atypical Intraepithelial Prostatic Lesions Based on Basal Cell and Architectural Patterns

2019 ◽  
Vol 153 (3) ◽  
pp. 407-416 ◽  
Author(s):  
Guang-Qian Xiao ◽  
Reza Golestani ◽  
Huy Pham ◽  
Andy E Sherrod
Keyword(s):  
Basal Cell ◽  
Cell Layer ◽  
Intraepithelial Neoplasia ◽  
Low Grade ◽  
High Grade ◽  
Basal Cells ◽  
Basal Cell Layer ◽  
Clinical Patient ◽  
Architectural Patterns ◽  
Intraepithelial Carcinoma

Abstract Objectives: High-grade prostatic intraepithelial neoplasia (HPIN) and atypical cribriform lesion of the prostate are considered the precursors or associators of invasive prostate cancer (iPCa). Given loss of basal cells being the hallmark of iPCa, we hypothesized that a subset of these atypical intraepithelial lesions (AILs) with sparse basal cells can be classified as prostatic intraepithelial carcinoma (PIC) with frequent iPCa association and that different morphologic patterns of PIC are associated with specific Gleason (G) patterns and scores for iPCa. Methods: We stratified 153 foci of AILs from 110 patients based on the integrity of the basal cell layer and architectural patterns and their association with iPCa. Results: We demonstrated that AILs could be stratified into usual HPIN (intact basal cell layer and simple patterns) with low-risk of iPCa association and PIC (sparse basal cell layer) with high risk of iPCa association. Furthermore, PIC could be divided into low-grade (simple patterns and associated with G3 and G3/4 iPCa) and high-grade PIC (complex patterns and associated with G4 and G3/4/5 iPCa). Conclusions: Such stratification is of great clinical significance and instrumental to clinical patient management. It not only increases the predictability of AILs for iPCa but also accommodates a clinical scenario for lesions with features of intraductal carcinoma when iPCa is not found, particularly in biopsies.

Histopathological varieties of oral carcinomain situ: Diagnosis aided by immunohistochemistry dealing with the second basal cell layer as the proliferating center of oral mucosal epithelia

2010 ◽  
Vol 60 (3) ◽  
pp. 156-166 ◽  
Author(s):  
Takanori Kobayashi ◽  
Satoshi Maruyama ◽  
Jun Cheng ◽  
Hiroko Ida-Yonemochi ◽  
Minoru Yagi ◽  
...  
Keyword(s):  
Basal Cell ◽  
Cell Layer ◽  
Basal Cell Layer ◽  
Carcinomain Situ

scholarly journals Basal Cell Adenoma of the Upper Lip from Minor Salivary Gland Origin

2008 ◽  
Vol 02 (03) ◽  
pp. 213-216 ◽  
Author(s):  
Eliana Maria Minicucci ◽  
Eloisa Bueno Pires de Eloisa ◽  
Silke Anna Thereza Weber ◽  
Maria Aparecida Custodio Domingues ◽  
Daniel Araki Ribeiro
Keyword(s):  
Salivary Gland ◽  
Basal Cell ◽  
Cell Layer ◽  
Minor Salivary Gland ◽  
Salivary Gland Neoplasm ◽  
Basal Cell Adenoma ◽  
Parotid Glands ◽  
Upper Lip ◽  
Basal Cell Layer ◽  
Cell Adenoma

ABSTRACTBasal cell adenoma is an uncommon benign salivary gland neoplasm, presenting isomorphic basaloid cells witha prominent basal cell layer. Taking into account that basal cell adenomas represent 1% of all salivary gland tumors, being the majority of cases in the parotid glands, the goal of this paper is to report a case of basalcell adenoma of the upper lip arising from minor salivary gland. (Eur J Dent 2008;2:213-216)

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