Details for: CL0000165

Cell ID: CL0000165

Cell Name: neuroendocrine cell

Description: A neuron that is capable of some hormone secretion in response to neuronal signals.

Synonyms: neurosecretory cell, neurosecretory neuron

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 neuroendocrine 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 neuroendocrine 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 neuroendocrine 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 neuroendocrine 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:  neuroendocrine cell (CL0000165)

 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 [neuroendocrine cell](/details-cell/CL0000165) is a specialized neuron defined by its capacity to secrete hormones in response to neural signals. The gene significance profile suggests that, at a systems level, its identity is primarily established by a highly active metabolic state and a robust infrastructure for protein synthesis and cytoskeletal dynamics. **Overall**, the top-ranking markers are not specific hormones but rather genes essential for energy production, such as cytochrome c oxidase subunits ([COX7A2](/details-gene/1347), [COX6C](/details-gene/1345)), and cellular machinery like myosin light chain ([MYL6](/details-gene/4637)). This indicates that the fundamental biological activity underpinning its dual secretory and signaling functions is its most distinguishing feature. ## Key Characteristics and Function Analysis of the top marker genes, ranked by expression specificity (`csi_z`), reveals several core functional clusters that define the [neuroendocrine cell](/details-cell/CL0000165). * **Intense Bioenergetic Activity:** A striking feature of this cell type is the high significance of multiple genes involved in mitochondrial respiration. Top markers include several subunits of the cytochrome c oxidase complex, such as [COX7A2](/details-gene/1347), [COX6C](/details-gene/1345), and [COX4I1](/details-gene/1327). The high specificity of these genes, along with the glycolytic enzyme [GAPDH](/details-gene/2597), suggests a profound reliance on ATP production through both oxidative phosphorylation and glycolysis to fuel its demanding secretory and neuronal functions. * **Dynamic Cytoskeleton and Vesicular Transport:** The highest-ranking marker, [MYL6](/details-gene/4637), a myosin light chain, points to the critical role of the actomyosin cytoskeleton in this cell. This, together with the actin-depolymerizing factor [CFL1](/details-gene/1072), underscores the importance of cytoskeletal remodeling for processes like vesicular transport, exocytosis of hormones, and maintaining neuronal structure. * **Calcium-Dependent Signaling and Regulation:** The profile highlights key components of calcium signaling pathways. The high significance of [CALM2](/details-gene/805) (Calmodulin 2) and [S100A6](/details-gene/6277) is consistent with the central role of calcium as a second messenger in triggering neurotransmitter release and hormone secretion from vesicles. * **Robust Protein Synthesis and Processing Machinery:** Markers such as [SRP14](/details-gene/6727), a component of the signal recognition particle, indicate a high capacity for co-translational protein translocation into the endoplasmic reticulum, essential for producing secreted hormones. The significance of genes involved in protein modification and turnover, like [SUMO2](/details-gene/6613) and [UBB](/details-gene/7314), further points to a tightly regulated and active proteome. * **Immunomodulatory and Signaling Roles:** The presence of Macrophage Migration Inhibitory Factor ([MIF](/details-gene/4282)) as a top marker suggests these cells may play a direct role in modulating immune responses. Furthermore, the high specificity of [NRG1](/details-gene/3084) (Neuregulin 1) highlights their involvement in complex intercellular signaling within the nervous system. Conversely, the list of **Anti Markers** helps refine the cell's identity. The low significance of well-known neuroendocrine markers like [SYP](/details-gene/6855) (Synaptophysin) and specific hormone precursors like [CALCA](/details-gene/796) (Calcitonin) in this **Overall** context suggests that while these genes are expressed, they are less specific to this cell type compared to the machinery that powers its core functions. This implies that the fundamental metabolic and structural framework is a more universal and defining feature across different neuroendocrine subtypes than any single secretory product. ## Clinical Significance and Contextual Roles The gene signature of the [neuroendocrine cell](/details-cell/CL0000165) provides insights into its potential roles in disease. The prominent metabolic profile, characterized by high expression of mitochondrial genes ([COX7A2](/details-gene/1347), [COX6C](/details-gene/1345)), is highly relevant to neuroendocrine tumors (NETs), which are often characterized by altered metabolism and high energetic demands to support uncontrolled proliferation and secretion. Several top marker genes have direct clinical associations: * [NRG1](/details-gene/3084) is a growth factor whose signaling is implicated in both nervous system development and the pathophysiology of schizophrenia and certain cancers ([Link](https://doi.org/10.1126/science.256.5060.1205)). Its high specificity suggests that dysregulation in [neuroendocrine cells](/details-cell/CL0000165) could contribute to these conditions. * [MIF](/details-gene/4282) is a pro-inflammatory cytokine that functions as a hormone and is implicated in a wide range of inflammatory diseases and cancers ([Link](https://doi.org/10.1073/pnas.86.19.7522)). Its status as a key marker positions the [neuroendocrine cell](/details-cell/CL0000165) as a potential source of this factor, linking the nervous and endocrine systems directly to immune-mediated pathology. * The high significance of iron-handling proteins [FTH1](/details-gene/2495) and [FTL](/details-gene/2512) suggests a critical role in managing iron homeostasis and mitigating oxidative stress, a crucial function in a cell with such high mitochondrial activity. Dysregulation of iron metabolism is a feature of various neurodegenerative diseases. Given that this analysis represents an **Overall** context, the identified markers likely reflect the fundamental, shared biology of neuroendocrine cells across various tissues. This foundational signature could serve as a baseline for identifying pathological deviations in specific disease contexts, such as the metabolic reprogramming observed in NETs or altered signaling in neurological disorders. ## Potential Mechanisms and Research Directions 1. **Hypothesis:** The universal identity of a [neuroendocrine cell](/details-cell/CL0000165) is defined less by its specific secretome and more by the upstream, high-capacity bioenergetic and protein-trafficking infrastructure required to sustain its dual functions. * **Surprising Findings:** The analysis reveals that genes for fundamental cellular processes, such as mitochondrial respiration ([COX7A2](/details-gene/1347)) and cytoskeletal mechanics ([MYL6](/details-gene/4637)), exhibit greater expression specificity for this cell type than canonical markers like [SYP](/details-gene/6855) or specific hormones. This suggests that the "engine" of the cell is more defining than the "cargo" it produces. * **Testable Questions:** How do metabolic inhibitors targeting oxidative phosphorylation versus glycolysis differentially impact hormone secretion versus the maintenance of membrane potential in primary [neuroendocrine cell](/details-cell/CL0000165) cultures? Does knocking down pan-neuroendocrine markers like [MYL6](/details-gene/4637) lead to a more profound loss of function than knocking down subtype-specific hormone genes? 2. **Hypothesis:** [Neuroendocrine cells](/details-cell/CL0000165) function as critical hubs in a neuro-endocrine-immune network by constitutively expressing and secreting immunomodulatory factors like [MIF](/details-gene/4282), thereby translating neural or metabolic signals into local immune regulation. * **Surprising Findings:** The identification of a potent pro-inflammatory cytokine, [MIF](/details-gene/4282), as one of the most specific gene markers for this cell type is unexpected. It challenges the traditional view of these cells as purely hormonal/neuronal and points toward an intrinsic, hard-wired immunological role. * **Testable Questions:** Can stimulation of [neuroendocrine cells](/details-cell/CL0000165) with neurotransmitters (e.g., acetylcholine) or metabolic stressors (e.g., hypoxia) trigger the release of [MIF](/details-gene/4282)? Furthermore, does co-culturing activated [neuroendocrine cells](/details-cell/CL0000165) with macrophages or T cells alter the immune cells' activation state or cytokine production profile?