The phrase "activated mainly by" is correct and usable in written English.
You can use it when describing the primary triggers or causes that initiate a process or action.
Example: "The device is activated mainly by a motion sensor that detects movement in the vicinity."
Alternatives: "primarily triggered by" or "chiefly initiated by".
Hepatic stellate cell (HSC) activation is activated mainly by endotoxin and transforming growth factor (TGF-β1) in chronic liver injury, consequently, can be important therapeutic targets.
Macrophages are heterogeneous and can be divided into classically activated macrophages (alternatively M1 macrophages, M1) that are activated mainly by Th1 cytokines and alternatively activated macrophages (alternatively M2 macrophages, M2) that are activated mainly by Th2 cytokines (Mantovani et al, 2002; Mosser and Edwards, 2008; Biswas and Mantovani, 2010; Sica and Mantovani, 2012).
Hypoxia-inducible factor (HIF) is a key transcription factor activated mainly by hypoxia due to the dependence of HIF-proly hydroxylases (PHD) on oxygen (see below).
Activity profiles in frontal areas, in turn, were activated mainly by task-relevant Stop-trials, presumably reflecting a combination of triggered top-down attentional influences and inhibitory motor-control processes.
At least in atx-3 animals, it seems that chaperone overexpression is being activated mainly by DAF-16, given the requirement of DAF-16 for the phenotype.
AP1, activated mainly by FT, is also necessary to establish and maintain flower meristem identity [ 59].
On the basis of LOX-derived volatiles, it was inferred that the LOX pathway is activated mainly following infestation by the tea green leafhopper whereas in aphid-infested plants, the LOX pathway is not only induced inadequately but also positively suppressed.
The lymphoid-related DC (DC2) are CD11c− and have been shown to induce a tolerating response vs tumour cells by activating mainly TH2 cells, whereas myeloid-derived DC (DC1) are immunostimulatory via TH1 cells.
Further studies confirmed that MAD2 activated MPF mainly by preventing cyclin B proteolysis [23], [24], [28], [29].
PAR2 is activated by mainly serine proteases (e.g. trypsin, tryptase, cathepsin G) but not thrombin and may be linked to inflammatory and proliferative disorders [4].
Plasmin formation from plasminogen is mainly activated by tissue plasminogen activator and inhibited by plasminogen activator inhibitor 1.
