Details for: CL0000651

Cell ID: CL0000651

Cell Name: mucous neck cell

Description: duplicate term

Synonyms: neck cell

Selected Context(s): Overall

Gene Significance Landscape

Display Options
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 mucous neck 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 mucous neck 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 mucous neck 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 mucous neck 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:  mucous neck cell (CL0000651)

 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.

Loading network (please wait)...

## Summary The **[mucous neck cell](/details-cell/CL0000651)** is a specialized secretory cell type found in the gastric glands. While traditionally defined by its production of mucus, the gene significance profile for this cell suggests its identity is overwhelmingly distinguished by an exceptionally high and specific expression of genes related to mitochondrial bioenergetics. **Overall**, the top marker genes, including numerous subunits of the NADH dehydrogenase and cytochrome c oxidase complexes such as **[ND4](/details-gene/4538)** (CSI: 70.74, PRS: 0.2%) and **[ND2](/details-gene/4536)** (CSI: 68.78, PRS: 0.3%), point to a state of extreme metabolic activity. This suggests that the immense energy requirement for the synthesis and secretion of complex glycoproteins is a core, defining feature of this cell's physiological state. ## Key Characteristics and Function The gene expression landscape of the **[mucous neck cell](/details-cell/CL0000651)** is dominated by two interconnected functional themes: high-energy metabolism and robust protein synthesis. * **Mitochondrial Bioenergetics:** A remarkable number of the top markers are components of the mitochondrial electron transport chain. These include multiple NADH dehydrogenase subunits ([ND4](/details-gene/4538), [ND2](/details-gene/4536), [ND3](/details-gene/4537), [ND1](/details-gene/4535)), cytochrome c oxidase subunits ([COX2](/details-gene/4513), [COX4I1](/details-gene/1327), [COX7C](/details-gene/1350), [COX5B](/details-gene/1329), [COX6C](/details-gene/1345)), cytochrome b ([CYTB](/details-gene/4519)), and ATP synthase components ([ATP5MC2](/details-gene/517)). The high specificity (`csi_z`) of these genes indicates that this intense respiratory activity is a distinctive feature compared to other cell types. This is further supported by the high significance of genes involved in managing metabolic cofactors, such as the ferritin heavy and light chains ([FTH1](/details-gene/2495) and [FTL](/details-gene/2512)), which are crucial for iron storage needed for heme-containing cytochromes and iron-sulfur clusters in the respiratory complexes. * **Protein Synthesis and Processing:** Complementing its metabolic capacity, the cell shows high significance for genes essential for protein production. This includes **[EEF1D](/details-gene/1936)**, involved in translational elongation, **[NPM1](/details-gene/4869)**, which plays a role in ribosome biogenesis, and **[PABPC1](/details-gene/26986)**, a key poly(A)-binding protein that regulates mRNA stability and translation. This machinery is consistent with the cell's primary function of synthesizing large quantities of the protein backbones for mucins. * **Refined Cellular Identity:** The anti-marker profile helps distinguish **[mucous neck cells](/details-cell/CL0000651)** from other secretory and specialized cell types. For instance, the low significance of **[GP2](/details-gene/2813)**, a major protein of pancreatic zymogen granules, confirms its distinct identity from other exocrine cells. Similarly, the low significance of **[FCGBP](/details-gene/8857)**, an IgG Fc binding protein associated with colonic goblet cells, may suggest a different mucus composition or a unique immunological role compared to intestinal counterparts. ## Clinical Significance and Contextual Roles **Overall**, the profound metabolic signature of the **[mucous neck cell](/details-cell/CL0000651)** suggests it may be particularly vulnerable to insults that target mitochondrial function or induce metabolic stress. The intense reliance on aerobic respiration could render these cells susceptible to damage from hypoxia, metabolic toxins, or genetic mitochondrial defects. A key publication associated with the top marker **[ND4](/details-gene/4538)** demonstrates that the differentiation of HT-29 human colonic adenocarcinoma cells into a mucin-producing phenotype is correlated with a dramatic increase in mitochondrial RNA expression ([Link](https://pubmed.ncbi.nlm.nih.gov/1377597/)). This finding provides a crucial link, suggesting that the heightened mitochondrial state is not merely supportive but may be an integral part of the differentiation program that establishes the mucin-secreting phenotype. This connection implies that alterations in mitochondrial function could be a factor in the pathogenesis of gastric diseases, including intestinal metaplasia and gastric cancer, where the differentiation state of secretory cells is profoundly altered. The unique metabolic profile, marked by high expression of mitochondrial and iron-storage genes like **[FTH1](/details-gene/2495)**, could also serve as a potential biomarker for assessing the metabolic state or differentiation status of gastric tissues in health and disease. ## Potential Mechanisms and Research Directions 1. **Hypothesis:** The extreme mitochondrial bioenergetic state of the **[mucous neck cell](/details-cell/CL0000651)** is a primary driver of its differentiation into a high-capacity secretory cell, rather than simply a consequence of its energy demands. * **Surprising Findings:** It is unexpected that a secretory cell's identity is more specifically defined by its mitochondrial gene expression profile (`csi_z`) than by genes encoding the secreted products themselves. This suggests that achieving this elite metabolic state is a rare and highly specialized cellular feature, potentially acting as a master regulator of the cell's functional capacity. * **Testable Questions:** If gastric organoids are treated with inhibitors of the electron transport chain (e.g., rotenone or antimycin A), does this disproportionately affect the maturation and mucus-production capacity of **[mucous neck cells](/details-cell/CL0000651)** compared to other gastric epithelial lineages like chief or parietal cells? 2. **Hypothesis:** The high specific expression of ferritin genes ([FTH1](/details-gene/2495) and [FTL](/details-gene/2512)) serves a critical, specialized role in protecting **[mucous neck cells](/details-cell/CL0000651)** from iron-induced oxidative stress and ferroptosis, a vulnerability created by their high-flux respiratory activity. * **Surprising Findings:** While ferritin is often considered a housekeeping gene, its high specificity score in this context suggests its expression level or regulation is unusually pronounced in **[mucous neck cells](/details-cell/CL0000651)**. This points away from a general housekeeping role and towards a specialized adaptation to mitigate the inherent dangers of a hyper-metabolic state that is rich in iron-dependent enzymes. * **Testable Questions:** Using spatial transcriptomics or high-resolution imaging on gastric tissue, are **[mucous neck cells](/details-cell/CL0000651)** more resistant to chemically-induced ferroptosis (e.g., via erastin or RSL3) than adjacent cell types, and can this resistance be reversed by specific knockdown of **[FTH1](/details-gene/2495)**?