Details for: CL0001057

Cell ID: CL0001057

Cell Name: myeloid dendritic cell, human

Description: This cell type is compatible with the HIPC Lyoplate markers for 'myeloid dendritic cell'. The inclusion of HLA-DRA in the definition restricts this definition to human myeloid dendritic cells.

Synonyms: myeloid dendritic 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 myeloid dendritic cell, human 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 myeloid dendritic cell, human. 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 myeloid dendritic cell, human. 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 myeloid dendritic cell, human. 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:  myeloid dendritic cell, human (CL0001057)

 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 [myeloid dendritic cell, human](/details-cell/CL0001057) is a professional antigen-presenting cell (APC) crucial for initiating adaptive immune responses. The provided gene significance profile, based on expression specificity (`csi_z`), suggests that **Overall**, its defining characteristic is not merely its surface phenotype but an underlying state of intense metabolic and biosynthetic activity. The high significance of genes involved in polyamine metabolism ([OAZ1](/details-gene/4946)), iron homeostasis ([FTH1](/details-gene/2495)), and cytoskeletal dynamics ([MYL6](/details-gene/4637)) indicates that this cell is constitutively prepared for the energetically demanding tasks of antigen processing, migration, and T-cell activation. ## Key Characteristics and Function The gene signature of the [myeloid dendritic cell, human](/details-cell/CL0001057) reveals a cell geared towards robust protein synthesis, energy production, and antigen presentation. * **Antigen Presentation Machinery:** As expected for a key APC, genes central to antigen presentation are highly significant. This includes [B2M](/details-gene/567), a component of the MHC class I complex for presenting endogenous antigens to CD8+ T cells, and [HLA DPA1](/details-gene/3113), a component of the MHC class II complex for presenting exogenous antigens to CD4+ T cells. This dual capability underscores its central role in bridging innate and adaptive immunity. * **High Metabolic and Biosynthetic Activity:** A dominant theme among the top markers is a state of high metabolic readiness. * **Energy Production:** Multiple components of the mitochondrial electron transport chain, such as [COX4I1](/details-gene/1327), [COX7C](/details-gene/1350), and [COX1](/details-gene/4512), along with the ATP synthase subunit [ATP5F1E](/details-gene/514), have high CSI values. This points to a heavy reliance on oxidative phosphorylation to fuel cellular processes. * **Iron Metabolism:** The high significance of both ferritin heavy chain ([FTH1](/details-gene/2495)) and light chain ([FTL](/details-gene/2512)) suggests a critical role for iron storage and management, which is essential for numerous enzymatic processes and can modulate immune responses. * **Polyamine Metabolism:** The top marker, [OAZ1](/details-gene/4946), and the significant marker [SAT1](/details-gene/6303) are key regulators of polyamine synthesis, molecules vital for cell proliferation, differentiation, and protein synthesis. * **Robust Transcriptional and Translational Control:** The cell exhibits significant expression of genes that regulate gene expression and protein fate. This includes the transcription factor [YBX1](/details-gene/4904), RNA helicase [DDX5](/details-gene/1655), general transcription factor [BTF3](/details-gene/689), and the ubiquitin gene [UBC](/details-gene/7316). This machinery is consistent with a cell that must rapidly alter its proteome in response to environmental stimuli. * **Dynamic Cytoskeleton:** The prominence of multiple myosin light chain genes, including [MYL6](/details-gene/4637), [MYL12A](/details-gene/10627), and [MYL12B](/details-gene/103910), highlights the importance of the actomyosin cytoskeleton. This is fundamental for mDC functions such as migration through tissues, antigen capture via phagocytosis and macropinocytosis, and the formation of the immunological synapse with [T-cells](/details-cell/CL0000084). * **Defining by Exclusion (Anti-Markers):** The low significance of genes associated with the NADPH oxidase complex, such as [CYBB](/details-gene/1536) and [NCF2](/details-gene/4688), suggests that robust reactive oxygen species (ROS) production is not a defining feature of this cell in its basal state, unlike in neutrophils or activated macrophages. Similarly, the low significance of complement components ([C1QB](/details-gene/713), [C1QA](/details-gene/712)) distinguishes it from macrophages, which are major producers of these proteins. ## Clinical Significance and Contextual Roles **Overall**, the gene profile of [myeloid dendritic cell, human](/details-cell/CL0001057) positions it as a central player in health and a critical target in disease. Its inherent capacity for potent T-cell activation makes it a cornerstone of anti-tumor immunity and vaccine efficacy. Therapeutic strategies often focus on loading mDCs with tumor antigens or activating them *ex vivo* to enhance their immunogenicity. The highlighted metabolic features may also have clinical relevance. Dysregulation of iron metabolism, underscored by the high significance of [FTH1](/details-gene/2495) and [FTL](/details-gene/2512), is implicated in both chronic inflammation and cancer microenvironments. The metabolic state of mDCs can determine whether they promote an inflammatory or a tolerogenic immune response. Therefore, the genes identified as specific markers of the mDC's metabolic engine could represent novel targets for immunomodulation in autoimmune diseases or cancer. For example, manipulating polyamine pathways, regulated by [OAZ1](/details-gene/4946), might alter DC function and subsequent T-cell polarization. ## Potential Mechanisms and Research Directions 1. **Hypothesis:** The defining characteristic of a [myeloid dendritic cell, human](/details-cell/CL0001057) in its basal, non-activated state is not its immune surveillance machinery but rather a state of heightened metabolic and biosynthetic readiness. This "poised" state, underscored by high specific expression of genes for polyamine metabolism ([OAZ1](/details-gene/4946)), iron storage ([FTH1](/details-gene/2495)), and oxidative phosphorylation ([COX4I1](/details-gene/1327)), is essential for enabling the rapid and energy-intensive transition to a fully activated, antigen-presenting state upon encountering a pathogen. * **Surprising Findings:** The most specific markers for this cell type are not canonical DC surface proteins but rather genes reflecting a unique internal metabolic engine. This suggests that the fundamental identity of an mDC is dictated by its metabolic infrastructure, which supports its specialized immune functions. * **Testable Questions:** Does targeted inhibition of ornithine decarboxylase (which is regulated by [OAZ1](/details-gene/4946)) or disruption of iron homeostasis (e.g., using an iron chelator) in resting mDCs impair their ability to upregulate co-stimulatory molecules (like CD80/CD86) and activate naive T cells following Toll-like receptor stimulation? 2. **Hypothesis:** The specific and high-level expression of multiple myosin light chain paralogs ([MYL6](/details-gene/4637), [MYL12A](/details-gene/10627), [MYL12B](/details-gene/103910)) reflects a specialized organization of the actomyosin cytoskeleton that is critical for the distinct motile and antigen-capturing functions of mDCs. These different isoforms may confer unique contractile and kinetic properties necessary for coordinating the dynamic membrane remodeling required for processes like macropinocytosis and the formation of a stable immunological synapse, which differ from the cytoskeletal functions of other myeloid cells like macrophages. * **Surprising Findings:** The co-expression of several distinct myosin light chain genes as highly specific markers suggests a level of cytoskeletal complexity and regulatory nuance that may be underappreciated in this cell type. This functional redundancy or specialization could be key to its multifaceted roles. * **Testable Questions:** Do [MYL6](/details-gene/4637), [MYL12A](/details-gene/10627), and [MYL12B](/details-gene/103910) localize to different subcellular compartments during antigen uptake versus T-cell synapse formation? Furthermore, does siRNA-mediated knockdown of each paralog differentially affect mDC migration speed, the efficiency of antigen internalization, or the stability and duration of T-cell contacts?