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Relationship: 2204
Title
Decrease, ATP pool leads to Decrease, Cell proliferation
Upstream event
Downstream event
AOPs Referencing Relationship
| AOP Name | Adjacency | Weight of Evidence | Quantitative Understanding | Point of Contact | Author Status | OECD Status |
|---|---|---|---|---|---|---|
| Uncoupling of oxidative phosphorylation leading to growth inhibition via decreased cell proliferation | adjacent | Moderate | Moderate | Allie Always (send email) | Open for citation & comment | WPHA/WNT Endorsed |
| Mitochondrial ATP synthase antagonism leading to growth inhibition (1) | adjacent | Brendan Ferreri-Hanberry (send email) | Under development: Not open for comment. Do not cite | |||
| Mitochondrial complex III antagonism leading to growth inhibition (1) | adjacent | Agnes Aggy (send email) | Under development: Not open for comment. Do not cite |
Taxonomic Applicability
Sex Applicability
| Sex | Evidence |
|---|---|
| Unspecific | High |
Life Stage Applicability
| Term | Evidence |
|---|---|
| Embryo | High |
This key event relationship describes reduced adenosine triphosphate (ATP) supply leading to reduced cell proliferation (cell growth, division or a combination of these).
| ID | Experimental Design | Species | Upstream Observation | Downstream Observation | Citation (first author, year) | Notes |
|---|
| Title | First Author | Biological Plausibility |
Dose Concordance |
Temporal Concordance |
Incidence Concordance |
|---|
Biological Plausibility
Dose Concordance Evidence
Temporal Concordance Evidence
Incidence Concordance Evidence
Uncertainties and Inconsistencies
There are currently no inconsistencies based on the supporting literature.
The quantitative understanding of Relationship 2204 is moderate.
Rationale: Quantitative relationships between total ATP and cell proliferation have been extensively investigated (Ahmann 1987; Crouch 1993). In general, a monotonic positive relationship can be assumed for the two events, albeit the actual quantitative relationship can vary across biological systems (e.g. cell types and species). It has also been suggested that a threshold of ATP depletion (85-90% compared to normal status) may exist to determine whether proliferation arrest (<85-90%) or cell death (>85-90%) will be triggered in mammals (Nieminen 1994).
Response-response Relationship
Time-scale
Known Feedforward/Feedback loops influencing this KER
Taxonomic applicability
Relationship 2204 is considered applicable to all eukaryotes, as ATP and cell proliferation are known to be tightly coupled in animals, plants and some microorganisms.
Sex applicability
Relationship 2204 is considered applicable to all sexes, as ATP-dependent cell proliferation are used by both males and females in eukaryotes.
Life-stage applicability
Relationship 2204 is considered applicable to all life stages, as ATP-dependent cell proliferation is an essential process for an organism throughout the entire life.