Distinct fate, dynamics and niches of renal macrophages of bone marrow or embryonic origins

Fengming Liu, Shen Dai, Dechun Feng, Zhongnan Qin, Xiao Peng, Siva S.V.P. Sakamuri, Mi Ren, Li Huang, Min Cheng, Kabir E. Mohammad, Ping Qu, Yong Chen, Chunling Zhao, Faliang Zhu, Shujian Liang, Bertal H. Aktas, Xiaofeng Yang, Hong Wang, Prasad V.G. Katakam, David W. BusijaTracy Fischer, Prasun K. Datta, Jay Rappaport, Bin Gao, Xuebin Qin

Research output: Contribution to journalArticlepeer-review

80 Scopus citations

Abstract

Renal macrophages (RMs) participate in tissue homeostasis, inflammation and repair. RMs consist of embryo-derived (EMRMs) and bone marrow-derived RMs (BMRMs), but the fate, dynamics, replenishment, functions and metabolic states of these two RM populations remain unclear. Here we investigate and characterize RMs at different ages by conditionally labeling and ablating RMs populations in several transgenic lines. We find that RMs expand and mature in parallel with renal growth after birth, and are mainly derived from fetal liver monocytes before birth, but self-maintain through adulthood with contribution from peripheral monocytes. Moreover, after the RMs niche is emptied, peripheral monocytes rapidly differentiate into BMRMs, with the CX3CR1/CX3CL1 signaling axis being essential for the maintenance and regeneration of both EMRMs and BMRMs. Lastly, we show that EMRMs have a higher capacity for scavenging immune complex, and are more sensitive to immune challenge than BMRMs, with this difference associated with their distinct glycolytic capacities.

Original languageEnglish
Article number2280
Pages (from-to)2280
JournalNature Communications
Volume11
Issue number1
DOIs
StatePublished - Dec 1 2020

Keywords

  • Animals
  • Bone Marrow Cells/cytology
  • CX3C Chemokine Receptor 1/metabolism
  • Cell Lineage
  • Chemokine CX3CL1/blood
  • Female
  • Fetus/cytology
  • Kidney/embryology
  • Liver/embryology
  • Macrophages/cytology
  • Male
  • Mice
  • Monocytes/cytology

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