Complex sentence: Both monomer and homodimer forms of IL-8 were reported as potent inducers of CXCR1 and CXCR2, the homodimer proved to be more potent, however, methylation of Leu25 can block activity of the dimers.
Split into simpler sentences: Both monomer and homodimer forms of IL-8 were reported as potent inducers of CXCR1 and CXCR2. The homodimer proved to be more potent, however methylation of Leu25 can block activity of the dimers.