Macrophages promote cyst growth in polycystic kidney disease

Anil Karihaloo, Farrukh Koraishy, Sarah Huen, Yashang Lee, David Merrick, Michael J. Caplan, Stefan Somlo, Lloyd G. Cantley

Research output: Contribution to journalArticle

98 Citations (Scopus)

Abstract

Polycystic kidney disease (PKD) exhibits an inflammatory component, but the contribution of inflammation to cyst progression is unknown. Macrophages promote the proliferation of tubular cells following ischemic injury, suggesting that they may have a role in cystogenesis. Furthermore, cultured Pkd1-deficient cells express the macrophage chemoattractants Mcp1 and Cxcl16 and stimulate macrophage migration. Here, in orthologous models of both PKD1 and PKD2, abnormally large numbers of alternatively activated macrophages surrounded the cysts. To determine whether pericystic macrophages contribute to the proliferation of cyst-lining cells, we depleted phagocytic cells from Pkd1 fl/fl;Pkhd1-Cre mice by treating with liposomal clodronate from postnatal day 10 until day 24. Compared with vehicle-treated controls, macrophage-depleted mice had a significantly lower cystic index, reduced proliferation of cyst-lining cells, better-preserved renal parenchyma, and improved renal function. In conclusion, these data suggest that macrophages home to cystic areas and contribute to cyst growth. Interruption of these homing and proliferative signals could have therapeutic potential for PKD.

Original languageEnglish (US)
Pages (from-to)1809-1814
Number of pages6
JournalJournal of the American Society of Nephrology
Volume22
Issue number10
DOIs
StatePublished - Oct 1 2011

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Polycystic Kidney Diseases
Cysts
Macrophages
Growth
Clodronic Acid
Kidney
Chemotactic Factors
Phagocytes
Cell Proliferation
Inflammation
Wounds and Injuries

ASJC Scopus subject areas

  • Nephrology

Cite this

Karihaloo, A., Koraishy, F., Huen, S., Lee, Y., Merrick, D., Caplan, M. J., ... Cantley, L. G. (2011). Macrophages promote cyst growth in polycystic kidney disease. Journal of the American Society of Nephrology, 22(10), 1809-1814. https://doi.org/10.1681/ASN.2011010084

Macrophages promote cyst growth in polycystic kidney disease. / Karihaloo, Anil; Koraishy, Farrukh; Huen, Sarah; Lee, Yashang; Merrick, David; Caplan, Michael J.; Somlo, Stefan; Cantley, Lloyd G.

In: Journal of the American Society of Nephrology, Vol. 22, No. 10, 01.10.2011, p. 1809-1814.

Research output: Contribution to journalArticle

Karihaloo, A, Koraishy, F, Huen, S, Lee, Y, Merrick, D, Caplan, MJ, Somlo, S & Cantley, LG 2011, 'Macrophages promote cyst growth in polycystic kidney disease', Journal of the American Society of Nephrology, vol. 22, no. 10, pp. 1809-1814. https://doi.org/10.1681/ASN.2011010084
Karihaloo, Anil ; Koraishy, Farrukh ; Huen, Sarah ; Lee, Yashang ; Merrick, David ; Caplan, Michael J. ; Somlo, Stefan ; Cantley, Lloyd G. / Macrophages promote cyst growth in polycystic kidney disease. In: Journal of the American Society of Nephrology. 2011 ; Vol. 22, No. 10. pp. 1809-1814.
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