Claudins, the integrated tight junction (TJ) cell-cell adhesion proteins located on the apico-lateral portion of epithelial cells, functions in maintaining cell polarity.
For example, different cell types and morphologies are recognized by recognizing colors for empty space (usually close to white), apical portion of epithelial cells (usually pink) and the basal layer of epithelial cells (usually pink-dark blue).
Benign tumours with a higher percentage of fibrous tissue exhibit less acidic pH values than those with larger portions of epithelial cells (delta pH = 0.38 pH units).
MAGL immunoreactivity was located in the central portion of the epithelial cells, thus, apical to the nucleus of the absorptive cells and basal to the mucus droplets of the goblet cells (fig. 2M, N, inset n″).
The apical portion of the epithelial cell cytoplasm shows more intense staining than the lower part, whereas the basal cells, transitional epithelium, or stromal cells do not express PSA.
The dilated and tortuous ducts, which lead into cystic spaces of all the syringocystoadenoma papilliferum cases, showed immunoreactivity at the apical portion of the epithelial cells or at the luminal surface of the cysts, with an intensity that ranged from to.
Immunohistochemical analysis of the human adult pancreas revealed CD133 expression at the apical portion of duct epithelial cells that co-expressed keratin 19 (KRT19), whereas CD133 was undetectable in islet endocrine cells or acinar cells, consistent with prior reports (Lardon et al., 2008).
It was shown in the mouse that transplantation of small fragments from any portion of the mammary epithelial tree to a cleared mammary fat pad regenerates an entire branching mammary epithelial tree.
In A. crypta, secondary lysosomes containing the intermediate stages of bacterial digestion were observed concentrated near the basal portion of the host epithelial cells (Fig. 1D).
To identify the epithelial portion of the tumor, an adjacent section was stained for CK5, and the observed boundaries of the epithelial components are indicated by a red line in both panels.
In the systemic group, GFP/CD-90 double-positive cells were observed around the apical portion of the PIE-like epithelial structure at days 3 and 5 (Fig. 5B (b, c)), after which positive staining declined over time.
