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. 2020 Mar 26;10:47. doi: 10.1186/s13578-020-00409-z

Fig. 1.

Fig. 1

Targeting G-quadruplex structures in telomerase positive or ALT cancer cells. Left: unresolved G4s block the function of telomerase for telomere elongation in telomerase positive cells; Middle: stabilized G4s at some oncogene promoters lead to the repression of those oncogenes; Right: Targeting G-loop with G4s ligands or R-loop inhibitors may be a potential therapeutics for ALT cancers