The phrase "a complex cascade of molecules" is correct and usable in written English.
It can be used in scientific or technical contexts to describe a series of interactions or processes involving multiple molecules.
Example: "In the biochemical pathway, a complex cascade of molecules is responsible for the regulation of cellular functions."
Alternatives: "an intricate series of molecules" or "a complicated chain of molecules".
Pituitary development depends on a complex cascade of transcription factors and signaling molecules that dictate organ commitment, cell differentiation and cell proliferation.
The RSK family is constituted of four different isoforms (RSK1 4) which are activated by the ERK-signalling pathway through a complex cascade of consecutive phosphorylations of the RSK molecule.
Within eukaryotes there is a complex cascade of RNA-based macromolecules that process other RNA molecules, especially mRNA, tRNA and rRNA.
In eukaryotic organisms, several ubiquitous primary antioxidant enzymes, such as SOD, catalase, and several peroxidases catalyze a complex cascade of reactions to convert ROS to more stable molecules, such as water and O2.
This step of immune cell entry into the brain tissue is regulated by adhesion molecules and leads to a complex cascade of events [ 13, 15].
Studies on the pathophysiology of metastasis of tumor cells suggest that dysregulation of adhesion molecules for the detachment of tumor cells from their primary cells are necessary but require a complex cascade of adhesive interactions between tumor cells and tissues.
When molecules that stimulate growth and development such as growth factors attach to the RET protein, a complex cascade of chemical reactions inside the cell is triggered.
Cardiac regeneration requires a complex cascade of events.
The control of the cell cycle is a highly regulated process that involves a complex cascade of events [33].
It also represents one of the final steps in a complex cascade of events necessary for effective antibacterial host defense.
