TLR9 and B-cell chronic lymphocytic leukemia: Another paper on TLR9 is Dampmann et al. of 2020 [52], which examined the effects of Toll-like receptor 9 (TLR9) agonists, CpG types A, B, and C, as well as oligodeoxynucleotide (ODN) antagonist INH-18, on cell polarization and migration of primary human CLL cells.