The phrase "activated by extensive" is correct and usable in written English.
It can be used in contexts where something is triggered or initiated by a significant amount of something, such as data, resources, or activity.
Example: "The system is activated by extensive user engagement, leading to improved performance."
Alternatives: "triggered by substantial" or "initiated by considerable".
Supportive evidence acquired from EM observation demonstrates that most eosinophils have been activated by showing extensive degranulation.
Myocyte loss, together with neurohumoral signaling activated by atrial stretch, prompts extensive replacement fibrosis in large part because of the greater number of fibroblasts present in the atria and its subsequent propensity for fibrotic tissue deposition [ 1].
In particular, the mast cells in the colonic biopsy specimens from the patients with UC-CRS were activated by incubation with SEB by showing extensive degranulation and release of histamine and tryptase.
Moreover, the molecular actors of these pathways are part of other cell signaling networks activated by additional extracellular stimuli, leading to complex and extensive crosstalk that has been difficult to model.
After extensive washing, spore-bound PLG was activated by uPA, and deposition of C3b on the spore surface was monitored.
After extensive washing B. recurrentis-bound PLG was activated by uPA and deposition of C3b molecules on the spirochetal cell surface was monitored.
This emphasizes the extensive and complex signaling networks that are activated by the EP receptors that has hindered an understanding of how each of the EP receptors elicit their multiple biological effects.
Extensive cross-talk between the intracellular signaling pathways activated by these factors contributes to maintenance of the undifferentiated hESC state.
When activated by exposure to a pathogen-associated molecule such as lipopolysaccharide (LPS), the macrophage undergoes extensive transcriptional reprogramming that is mediated in part by alterations in HAc (Aung et al., 2006).
TERT plays an extensive role in the maintenance of functional telomeres, and TERT can be activated by AKT and HSP90 and inhibited by c-Abl.
