Details for: CL0000150

Cell ID: CL0000150

Cell Name: glandular epithelial cell

Description: An epithelial cell, located in a gland, that is specialised for the synthesis and secretion of specific biomolecules, such as hormones, or mucous.

Synonyms: glandular epithelial cell

Selected Context(s): Overall

Gene Significance Landscape

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Score:
Display
Genes

Contexts:

Cell Significance Index (CSI) is uniquely calculated to reveal cell-specific gene markers. More info here

Significant Genes List

Genes with the highest and lowest Percentile Rank Scores (PRS) for glandular epithelial cell within the selected context(s).

Gene ID: A unique numerical identifier for this specific gene.
Symbol: Shortened abbreviation or name that represents this gene.
Ensembl Gene ID: A unique identifier assigned by Ensembl for genomic data mapping.
CSI Score: A combined effect size and statistical significance measure for glandular epithelial cell. Higher scores indicate a stronger, more significant difference in expression.
(Previously described as "Fold Change", but now represents Cliff's Delta × –log10(p).)

Gene ID: A unique numerical identifier for this specific gene.
Symbol: Shortened abbreviation or name that represents this gene.
Ensembl Gene ID: A unique identifier assigned by Ensembl for genomic data mapping.
CSI Score: A combined effect size and statistical significance measure for glandular epithelial cell. Higher scores indicate a stronger, more significant difference in expression.
Average CSI: csi sum / gene count
Cell network configuration

This network visualizes key genes for glandular epithelial cell. It primarily includes:
1. Top genes highly significant for this cell (Num. Top Cell Genes - based on the 'Min. CSI' setting).
2. Any additional specific 'Context Genes' you add below.
The final network is a combined view. Choose an Interaction Source (pathways or protein interactions) and optionally compare CSI scores with a Baseline Cell Type.

Maximum number of selected genes.
Select a context for the baseline cell.
Select a context for the target cell.
Target Cell for CSI:  glandular epithelial cell (CL0000150)

 Legend
Nodes (Genes):
 Query Gene
Node size also reflects Target Cell CSI magnitude.
Node Color (Target Cell CSI in specific network):
 Very High
 High
 Medium
 Low
 Very Low
 N/A or Not Sig.
Edges (Interactions):
 STRING (Protein-Protein)
 ONTOLOGY (Shared Pathway)
 Colors vary by pathway category; default arrow applies.

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## Summary The [glandular epithelial cell](/details-cell/CL0000150) is defined as a specialized epithelial cell within a gland, primarily responsible for the synthesis and secretion of biomolecules. Analysis of its gene significance profile reveals that its identity is strongly characterized by an exceptionally high level of metabolic activity. **Overall**, the top marker genes are dominated by components of mitochondrial respiration and ATP synthesis, including [ATP5MC2](/details-gene/517), [COX4I1](/details-gene/1327), and [COX5B](/details-gene/1329). This suggests that a profound capacity for energy production is not merely a supportive function but a core, defining feature of this cell type, likely fueling its demanding secretory and synthetic roles. ## Key Characteristics and Function The functional identity of the [glandular epithelial cell](/details-cell/CL0000150) is underpinned by several key biological processes, as indicated by its most specific gene markers. * **Mitochondrial Energy Metabolism:** A significant cluster of top-ranking genes based on expression specificity (`csi_z`) is involved in aerobic respiration. This includes multiple subunits of the cytochrome c oxidase complex ([COX4I1](/details-gene/1327), [COX5B](/details-gene/1329), [COX7C](/details-gene/1350), [COX6C](/details-gene/1345)) and ATP synthase ([ATP5MC2](/details-gene/517), [ATP5ME](/details-gene/521]), as well as a component of Complex I ([NDUFA4](/details-gene/4697)). The high specificity of these core metabolic genes indicates that a heightened state of oxidative phosphorylation distinguishes these cells from others in their native tissue environments. * **Transcriptional and Post-Transcriptional Regulation:** The cell exhibits a strong signature for active gene regulation, necessary for producing specific secreted products. Key markers include general transcription factors like [BTF3](/details-gene/689), transcription coactivators such as [EDF1](/details-gene/8721), and sequence-specific transcription factors like [KLF6](/details-gene/1316) and the proto-oncogene [FOS](/details-gene/2353). Furthermore, the high significance of [HNRNPA2B1](/details-gene/3181), an RNA-binding protein involved in mRNA splicing, suggests that post-transcriptional processing is a critical control point. * **Protein Synthesis and Trafficking:** Consistent with its secretory function, the cell is marked by [SRP14](/details-gene/6727), a component of the signal recognition particle essential for targeting nascent proteins to the endoplasmic reticulum for secretion. This directly links the genetic profile to the cell's described primary role. * **Cellular Stress and Homeostasis:** Genes involved in managing cellular stress and metabolism are also prominent. [GSTP1](/details-gene/2950) is a key enzyme in detoxification, and [HMGB1](/details-gene/3146), a damage-associated molecular pattern (DAMP) molecule, suggests a potential role in signaling tissue stress. The significance of [SAT1](/details-gene/6303), an enzyme in polyamine metabolism, further points to active homeostatic regulation. * **Lack of Lineage-Specific Markers:** The anti-markers, or least significant genes, include those associated with other specialized cell types, such as [MUC16](/details-gene/94025) (a marker for some epithelial surfaces), and genes involved in extracellular matrix composition like [LAMC2](/details-gene/3918). This reinforces the cell's specialized glandular identity and distinguishes it from structural or other epithelial subtypes. ## Clinical Significance and Contextual Roles While this analysis is based on a general context, the specific gene markers of the [glandular epithelial cell](/details-cell/CL0000150) highlight its potential involvement in various pathological processes. The high specificity of the proto-oncogene [FOS](/details-gene/2353) and the transcription factor [KLF6](/details-gene/1316), which has complex roles in both tumor suppression and progression, suggests that dysregulation of transcriptional programs in these cells could be a key step in the development of adenocarcinomas, which are cancers of glandular origin. Furthermore, the prominence of [HMGB1](/details-gene/3146) as a specific marker is noteworthy. As a potent pro-inflammatory cytokine when released from cells, its specific expression in [glandular epithelial cells](/details-cell/CL0000150) may implicate them as active participants in initiating or propagating inflammation in glandular tissues, such as in pancreatitis or sialadenitis. The unexpected presence of [ITM2B](/details-gene/9445), a gene linked to familial British dementia through amyloid peptide formation ([Link](https://doi.org/10.1038/21637)), as a marker is intriguing. While its primary association is with neurological disease, its specific expression here may suggest a broader role in protein processing or amyloidogenesis that could be relevant in pathologies of glandular organs. ## Potential Mechanisms and Research Directions 1. **Hypothesis:** The highly specific expression of core mitochondrial machinery genes is not merely a "housekeeping" feature but a tightly regulated program that is functionally coupled to the specific synthetic and secretory demands of the gland. This implies that the cell's metabolic capacity is a primary determinant of its function and a potential point of vulnerability in disease. * **Surprising Findings:** It is unexpected that ubiquitous genes involved in oxidative phosphorylation would serve as such highly specific markers (`csi_z`). This suggests that, relative to surrounding cell types (e.g., stromal, immune), [glandular epithelial cells](/details-cell/CL0000150) exist in a state of exceptionally high and distinct metabolic activity, making this their defining characteristic. * **Testable Questions:** Does targeted inhibition of cytochrome c oxidase using pharmacological agents in a glandular organoid model disproportionately affect the synthesis and secretion of specialized proteins compared to its effect on cell viability? 2. **Hypothesis:** [Glandular epithelial cells](/details-cell/CL0000150) function as critical sensors and signalers of tissue stress through the regulated expression and potential release of damage-associated molecular patterns like [HMGB1](/details-gene/3146). This positions them as active initiators of the local immune response in glandular tissues, rather than passive targets of inflammation. * **Surprising Findings:** The identification of [HMGB1](/details-gene/3146), a well-known alarmin, as a gene with high expression specificity in a non-immune cell type under baseline conditions is significant. It suggests a pre-emptive or sentinel role for these cells in tissue homeostasis and defense. * **Testable Questions:** Upon exposure to metabolic stressors (e.g., hypoxia) or pathogens, do primary [glandular epithelial cells](/details-cell/CL0000150) actively secrete [HMGB1](/details-gene/3146)? Does the conditioned media from these stressed cells induce a pro-inflammatory phenotype in co-cultured macrophages or other immune cells?