Details for: CL2000059

Cell ID: CL2000059

Cell Name: prostate gland microvascular endothelial cell

Description: http://www.sciencellonline.com/site/productInformation.php?keyword=4400

Selected Context(s): Overall

Gene Significance Landscape

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Score:
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Genes

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

Image representation

Depiction of prostate gland microvascular endothelial cell
Courtesy of SwissBioPics

Significant Genes List

Genes with the highest and lowest Percentile Rank Scores (PRS) for prostate gland microvascular endothelial 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 prostate gland microvascular endothelial 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 prostate gland microvascular endothelial 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 prostate gland microvascular endothelial 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:  prostate gland microvascular endothelial cell (CL2000059)

 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 [prostate gland microvascular endothelial cell](/details-cell/CL2000059) is a specialized endothelial cell type lining the small blood vessels within the prostate gland. Based on gene significance analysis, this cell is characterized by an exceptionally high and specific expression of genes involved in mitochondrial energy production. The top marker genes, including multiple subunits of the NADH dehydrogenase ([ND1](/details-gene/4535), [ND2](/details-gene/4536), [ND4](/details-gene/4538)) and cytochrome c oxidase complexes ([COX1](/details-gene/4512), [COX2](/details-gene/4513)), suggest a state of high metabolic activity. This bioenergetic signature appears to be a defining feature of these cells, likely reflecting their critical role in maintaining the specialized microenvironment of the prostate gland through active transport and barrier function. ## Key Characteristics and Function **Overall**, the gene expression profile of the [prostate gland microvascular endothelial cell](/details-cell/CL2000059) points towards a cell with a high basal metabolic rate and active involvement in protein synthesis, turnover, and immune interactions. * **Mitochondrial Bioenergetics:** The most striking characteristic is the dominance of mitochondrial genes among the top markers. Genes encoding components of Complex I ([ND1](/details-gene/4535), [ND2](/details-gene/4536), [ND4](/details-gene/4538)) and Complex IV ([COX1](/details-gene/4512), [COX2](/details-gene/4513)) of the electron transport chain, as well as Complex III ([CYTB](/details-gene/4519)), exhibit the highest expression specificity (`csi_z`). This is further supported by the high significance of the housekeeping gene [GAPDH](/details-gene/2597), involved in glycolysis. This suggests that these cells are highly metabolically active, a state likely required to fuel active transport processes and maintain the blood-prostate barrier. * **Protein Synthesis and Regulation:** A significant number of top markers are involved in the machinery of protein synthesis, folding, and regulation. This includes [SRP14](/details-gene/6727), a component of the signal recognition particle that targets proteins for secretion, and [NPM1](/details-gene/4869), a nucleolar phosphoprotein involved in ribosome biogenesis. The high ranking of general transcription factors like [BTF3](/details-gene/689) and regulators like [YBX1](/details-gene/4904) further underscores robust transcriptional and translational activity. Genes involved in protein ubiquitination, such as [UBE2D3](/details-gene/7323) and [UBC](/details-gene/7316), indicate active protein quality control and turnover. * **Cytoskeletal Integrity and Calcium Signaling:** The presence of [CFL1](/details-gene/1072) (cofilin 1) and [MYL6](/details-gene/4637) (myosin light chain 6) as significant markers highlights the importance of actin cytoskeleton dynamics for maintaining cell shape, integrity, and motility. Additionally, the high significance of [CALM2](/details-gene/805) (calmodulin 2) suggests that calcium-dependent signaling pathways are central to the regulation of cellular processes in these endothelial cells. * **Immune System Interaction:** Several top markers, including [B2M](/details-gene/567) (Beta-2-microglobulin) and [HLA-E](/details-gene/3133), suggest a role in immune surveillance. [B2M](/details-gene/567) is an essential component of MHC class I molecules, while [HLA-E](/details-gene/3133) is a non-classical MHC molecule that primarily interacts with inhibitory receptors on Natural Killer (NK) cells. The high significance of the pro-inflammatory cytokine [MIF](/details-gene/4282) further points to a capacity for modulating local immune responses. * **Anti-Markers:** The genes with the lowest significance provide valuable negative context. Notably, several canonical endothelial-related genes, such as [SELP](/details-gene/6403) (P-selectin), [TIE1](/details-gene/7075), [RASIP1](/details-gene/54922) (involved in angiogenesis), and [EDN1](/details-gene/1906) (Endothelin-1), are found in the anti-marker list. This suggests that in the analyzed **Overall** context, these cells are in a relatively quiescent, non-activated, and non-proliferative state. The very low score for [MSMB](/details-gene/4477), a protein secreted by prostate epithelial cells, effectively confirms the endothelial, rather than epithelial, identity of this cell type. ## Clinical Significance and Contextual Roles The unique gene signature of prostate gland microvascular endothelial cells suggests they are more than passive conduits for blood and are actively involved in prostate homeostasis, with potential implications for disease. The profound metabolic signature defined by mitochondrial genes may be crucial for maintaining the specialized, low-zinc environment of the prostate and for transporting nutrients and hormones essential for epithelial function. In the context of prostate cancer, which is characterized by profound metabolic reprogramming and a dependence on angiogenesis, the high intrinsic metabolic capacity of these endothelial cells could be exploited or hijacked to support tumor growth and vascularization. The significant expression of immune-modulatory molecules like [HLA-E](/details-gene/3133) and [B2M](/details-gene/567) is particularly relevant. The prostate is a site of complex immunological balance, and the microvascular endothelium likely serves as a key interface for immune cell trafficking and surveillance. By expressing [HLA-E](/details-gene/3133), these cells may regulate the activity of local NK cells, potentially contributing to immune tolerance in the healthy gland. Dysregulation of this axis could impact anti-tumor immunity in prostate cancer. While the significance of [ITM2B](/details-gene/9445) is high in this cell type, its primary clinical association is with familial British dementia ([Link](https://doi.org/10.1038/21637)), a context distinct from prostate biology. Similarly, [NPM1](/details-gene/4869) mutations are hallmark drivers of acute myeloid leukemia ([Link](https://doi.org/10.1021/bi00429a017)), but its high expression here likely reflects its fundamental role in ribosome synthesis. ## Potential Mechanisms and Research Directions 1. **Hypothesis:** The distinct bioenergetic profile of prostate microvascular endothelial cells, characterized by exceptionally high expression of mitochondrial respiratory chain components, is a specific adaptation to fulfill the high energy demands of maintaining the blood-prostate barrier and supporting the metabolic needs of the prostate epithelium. * **Surprising Findings:** The most defining markers of this endothelial cell type are not classic vascular adhesion or angiogenesis molecules, but rather core components of mitochondrial complexes. This contrasts with many endothelial cell profiles where markers of cell-cell adhesion (e.g., VE-cadherin) or angiogenesis (e.g., VEGFR2) are paramount. * **Testable Questions:** Does targeted pharmacological inhibition of mitochondrial electron transport in prostate microvascular endothelial cells specifically compromise blood-prostate barrier integrity or negatively impact the metabolic state and survival of adjacent prostate epithelial cells in a co-culture system? 2. **Hypothesis:** Prostate microvascular endothelial cells actively contribute to the unique immunological landscape of the prostate by constitutively expressing high levels of [HLA-E](/details-gene/3133), which serves to inhibit local NK cell activation and maintain a state of immune tolerance. * **Surprising Findings:** In a presumably homeostatic state, these cells show low significance for inflammatory adhesion molecules like [SELP](/details-gene/6403) yet high significance for immune-regulatory molecules like [HLA-E](/details-gene/3133). This suggests their primary role is not in preparing for acute inflammation but in continuously managing immune surveillance. * **Testable Questions:** Does the downregulation of [HLA-E](/details-gene/3133) on prostate microvascular endothelial cells via siRNA lead to increased NK cell-mediated lysis of these endothelial cells *in vitro*? Furthermore, how does the expression of [HLA-E](/details-gene/3133) on these cells change in response to inflammatory cytokines or in the tumor microenvironment?