concept

P21

Entity Detail — Knowledge Graph Node

Understanding Entity Pages

This page aggregates everything SciDEX knows about P21: its mechanistic relationships (Knowledge Graph edges), hypotheses targeting it, analyses mentioning it, and supporting scientific papers. The interactive graph below shows its immediate neighbors. All content is AI-synthesized from peer-reviewed literature.

684Connections
1Hypotheses
1Analyses
50Outgoing
50Incoming

Summary

P21 is a concept in neurodegeneration research. Key relationships include: activates, regulates, expressed in. Associated with ALS, Aging, Als. Connected to 289 entities in the SciDEX knowledge graph.

View on Wiki →

💡 Concept Info
NameP21
Key Genes/ProteinsCANCER
Related DiseasesAging, Als, Tumor, Cancer, Senescence
Related PathwaysOxidative Stress, Apoptosis, Cell Cycle
Linked Hypotheses1 hypotheses

Wiki Pages (20)

Knowledge base pages for this entity

Microglia CD8+ T Cell Recruitment -- Supplementary WW Content

mechanism · 7227 words

CNTN4 — Contactin 4

gene · 4497 words

GBA1→GCase→Lysosome→PD Causal Chain

mechanism · 3927 words

Microglial Senescence Pathway in Neurodegeneration

mechanism · 3902 words

Cellular Senescence in Neurodegeneration

mechanism · 3734 words

Pathway Diagram

graph TD
    P21["<b>P21</b>"]
    P21 -->|"activates"| senescence["senescence"]
    P21 -->|"regulates"| cellular_senescence["cellular senescence"]
    P21 -->|"activates"| Aging["Aging"]
    P21 -->|"regulates"| ALS["ALS"]
    P21 -->|"inhibits"| Senescence["Senescence"]
    P21 -->|"regulates"| Inflammation["Inflammation"]
    P21 -->|"inhibits"| Tumor["Tumor"]
    P21 -->|"inhibits"| Cancer["Cancer"]
    P21 -->|"activates"| Ms["Ms"]
    P21 -->|"activates"| Als["Als"]
    P21 -->|"activates"| Depression["Depression"]
    PRDM4["PRDM4"] -->|"upregulates"| P21
    PRKCH["PRKCH"] -->|"regulates"| P21
    APOPTOSIS["APOPTOSIS"] -->|"activates"| P21
    AND["AND"] -->|"activates"| P21
    TERC["TERC"] -->|"regulates"| P21
    GENES["GENES"] -->|"regulates"| P21
    CYTOKINES["CYTOKINES"] -->|"regulates"| P21
    DNA["DNA"] -->|"inhibits"| P21
    AMPK["AMPK"] -->|"activates"| P21
    ATP["ATP"] -->|"activates"| P21
    OXIDATIVE_STRESS["OXIDATIVE STRESS"] -->|"activates"| P21

Outgoing (379)

TargetRelationTypeStr
Agingactivatesdisease1.00
Alsactivatesdisease1.00
Oxidative Stressactivatespathway0.90
Tumoractivatesdisease0.85
Canceractivatesdisease0.85

Incoming (305)

SourceRelationTypeStr
P53regulatesgene1.00
OXIDATIVE STRESSactivatesgene0.90
AGINGactivatesgene0.90
Polygonatum sibiricum polysaccharidedownregulatescompound0.85
Polygonatum Sibiricum Polysaccharidedownregulatescompound0.80

Targeting Hypotheses (1)

Hypotheses where this entity is a therapeutic target

HypothesisScoreDiseaseAnalysis
Timed Senolytic Therapy Eliminates p16^Ink4a/p21^Cip1-Senesc 0.587 neuroinflammation What molecular mechanisms drive the tran

Mentioning Analyses (1)

Scientific analyses that reference this entity

Senolytic therapy for age-related neurodegeneration

neurodegeneration | 2026-04-01 | 8 hypotheses Top: 0.703

Related Papers (0)

Scientific publications cited in analyses involving this entity

Title & PMIDAuthorsJournalYearCitations
No papers found