RA Treatment Options: Researchers Explore Groundwork for New Therapies

Dr. Perlman said it is now a new age in the understanding of macrophages in RA and that the classic in vitro model of M1 and M2 phenotypes of macrophages, with distinct roles and origins, doesn’t hold for an in vivo understanding of what’s going on.

“We have here a very complex understanding of macrophages,” he said. “Everything is being hit at once, so it’s not a clearly an M1/M2 in vivo system. It’s really a complex set of pathways that are all being activated.”

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Thomas R. Collins is a freelance writer living in South Florida.

References

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Misharin AV, Cuda CM, Saber R, et al. Nonclassical Ly6C(-) monocytes drive the development of inflammatory arthritis in mice. Cell Rep. 2014 Oct 23;9(2):591–604.

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