Introduction: The chemokine receptor CCR4 is expressed by diverse CD4+ T cell subsets including regulatory T cells (Tregs) but its functional importance for leukocyte recruitment and the relevance of its two corresponding chemokines CCL17 and CCL22 have not been studied in immune-mediated crescentic glomerulonephritis (cGN). Methods: Utilizing the single-cell RNA sequencing (scRNAseq) data in analyzing leukocytes isolated from both human and murine nephritic kidneys, we identified CCL17 as a potential therapeutic target in immune-mediated renal disease. Using a mouse model of murine cGN, we then delineated the effects of targeting CCL17 by neutralizing antibodies and in Ccl17 gene-deficient mice. Results: Unsupervised scRNAseq analyses identified the CCL17-CCR4 axis as a mechanism potentially involved in renal T-cell migration. Analyses of functional kidney impairment and histopathological kidney damage revealed an attenuation of crescentic GN in anti-CCL17 antibody-treated mice which was corroborated using in Ccl17 gene-deficient mice. Immunohistochemical analyses revealed that these changes were accompanied by an affected renal Treg recruitment in both experimental approaches. Conclusion: The chemokine receptor CCR4 and its corresponding chemokine CCL17 are expressed in human and murine cGN and targeting the CCR4-CCL17 axis by neutralizing antibodies as well as Ccl17 gene deficiency led to increased renal Treg recruitment and reduced histological and functional kidney damage in murine cGN.

1.
Floege J, Amann K. Primary glomerulonephritides. Lancet. 2016 May 14;387(10032):2036–48.
2.
Kurts C, Panzer U, Anders HJ, Rees AJ. The immune system and kidney disease: basic concepts and clinical implications. Nat Rev Immunol. 2013 Oct;13(10):738–53.
3.
Kitching AR, Anders HJ, Basu N, Brouwer E, Gordon J, Jayne DR, et al. ANCA-associated vasculitis. Nat Rev Dis Primers. 2020 Aug 27;6(1):71.
4.
Couser WG. Basic and translational concepts of immune-mediated glomerular diseases. J Am Soc Nephrol. 2012 Mar;23(3):381–99.
5.
Panzer U, Huber TB. Immune-mediated glomerular diseases: new basic concepts and clinical implications. Cell Tissue Res. 2021 Aug;385(2):277–9.
6.
Kitching AR, Hutton HL. The players: cells involved in glomerular disease. Clin J Am Soc Nephrol. 2016 Sep 7;11(9):1664–74.
7.
Krebs CF, Schmidt T, Riedel JH, Panzer U. T helper type 17 cells in immune-mediated glomerular disease. Nat Rev Nephrol. 2017 Oct;13(10):647–59.
8.
Suarez-Fueyo A, Bradley SJ, Klatzmann D, Tsokos GC. T cells and autoimmune kidney disease. Nat Rev Nephrol. 2017 Jun;13(6):329–43.
9.
Riedel JH, Turner JE, Panzer U. T helper cell trafficking in autoimmune kidney diseases. Cell Tissue Res. 2021 Aug;385(2):281–92.
10.
Bromley SK, Mempel TR, Luster AD. Orchestrating the orchestrators: chemokines in control of T cell traffic. Nat Immunol. 2008 Sep;9(9):970–80.
11.
Griffith JW, Sokol CL, Luster AD. Chemokines and chemokine receptors: positioning cells for host defense and immunity. Annu Rev Immunol. 2014;32:659–702.
12.
Chung AC, Lan HY. Chemokines in renal injury. J Am Soc Nephrol. 2011 May;22(5):802–9.
13.
Turner JE, Paust HJ, Steinmetz OM, Peters A, Riedel JH, Erhardt A, et al. CCR6 recruits regulatory T cells and Th17 cells to the kidney in glomerulonephritis. J Am Soc Nephrol. 2010 Jun;21(6):974–85.
14.
Paust HJ, Riedel JH, Krebs CF, Turner JE, Brix SR, Krohn S, et al. CXCR3+ regulatory T cells control TH1 responses in crescentic GN. J Am Soc Nephrol. 2016 Jul;27(7):1933–42.
15.
Iellem A, Mariani M, Lang R, Recalde H, Panina-Bordignon P, Sinigaglia F, et al. Unique chemotactic response profile and specific expression of chemokine receptors CCR4 and CCR8 by CD4(+)CD25(+) regulatory T cells. J Exp Med. 2001 Sep 17;194(6):847–53.
16.
Yoshie O, Matsushima K. CCR4 and its ligands: from bench to bedside. Int Immunol. 2015 Jan;27(1):11–20.
17.
Poppensieker K, Otte DM, Schurmann B, Limmer A, Dresing P, Drews E, et al. CC chemokine receptor 4 is required for experimental autoimmune encephalomyelitis by regulating GM-CSF and IL-23 production in dendritic cells. Proc Natl Acad Sci U S A. 2012 Mar 6;109(10):3897–902.
18.
Achuthan A, Cook AD, Lee MC, Saleh R, Khiew HW, Chang MW, et al. Granulocyte macrophage colony-stimulating factor induces CCL17 production via IRF4 to mediate inflammation. J Clin Invest. 2016 Sep 1;126(9):3453–66.
19.
Alferink J, Lieberam I, Reindl W, Behrens A, Weiss S, Huser N, et al. Compartmentalized production of CCL17 in vivo: strong inducibility in peripheral dendritic cells contrasts selective absence from the spleen. J Exp Med. 2003 Mar 3;197(5):585–99.
20.
Stutte S, Quast T, Gerbitzki N, Savinko T, Novak N, Reifenberger J, et al. Requirement of CCL17 for CCR7- and CXCR4-dependent migration of cutaneous dendritic cells. Proc Natl Acad Sci U S A. 2010 May 11;107(19):8736–41.
21.
Weber C, Meiler S, Doring Y, Koch M, Drechsler M, Megens RT, et al. CCL17-expressing dendritic cells drive atherosclerosis by restraining regulatory T cell homeostasis in mice. J Clin Invest. 2011 Jul;121(7):2898–910.
22.
Heiseke AF, Faul AC, Lehr HA, Forster I, Schmid RM, Krug AB, et al. CCL17 promotes intestinal inflammation in mice and counteracts regulatory T cell-mediated protection from colitis. Gastroenterology. 2012 Feb;142(2):335–45.
23.
Khaibullin T, Ivanova V, Martynova E, Cherepnev G, Khabirov F, Granatov E, et al. Elevated levels of proinflammatory cytokines in cerebrospinal fluid of multiple sclerosis patients. Front Immunol. 2017;8:531.
24.
Panzer U, Steinmetz OM, Paust HJ, Meyer-Schwesinger C, Peters A, Turner JE, et al. Chemokine receptor CXCR3 mediates T cell recruitment and tissue injury in nephrotoxic nephritis in mice. J Am Soc Nephrol. 2007 Jul;18(7):2071–84.
25.
Riedel JH, Robben L, Paust HJ, Zhao Y, Asada N, Song N, et al. Glucocorticoids target the CXCL9/CXCL10-CXCR3 axis and confer protection against immune-mediated kidney injury. JCI Insight. 2023 Jan 10;8(1):e160251.
26.
Paust HJ, Song N, De Feo D, Asada N, Tuzlak S, Zhao Y, et al. CD4(+) T cells produce GM-CSF and drive immune-mediated glomerular disease by licensing monocyte-derived cells to produce MMP12. Sci Transl Med. 2023 Mar 15;15(687):eadd6137.
27.
Eller K, Weber T, Pruenster M, Wolf AM, Mayer G, Rosenkranz AR, et al. CCR7 deficiency exacerbates injury in acute nephritis due to aberrant localization of regulatory T cells. J Am Soc Nephrol. 2010 Jan;21(1):42–52.
28.
Yamada M, Yagita H, Inoue H, Takanashi T, Matsuda H, Munechika E, et al. Selective accumulation of CCR4+ T lymphocytes into renal tissue of patients with lupus nephritis. Arthritis Rheum. 2002 Mar;46(3):735–40.
29.
Sakai R, Ito M, Yoshimoto K, Chikuma S, Kurasawa T, Kondo T, et al. Tocilizumab monotherapy uncovered the role of the CCL22/17-CCR4(+) Treg axis during remission of crescentic glomerulonephritis. Clin Transl Immunology. 2020;9(11):e1203.
30.
Feng G, Bajpai G, Ma P, Koenig A, Bredemeyer A, Lokshina I, et al. CCL17 aggravates myocardial injury by suppressing recruitment of regulatory T cells. Circulation. 2022 Mar 8;145(10):765–82.
31.
Feng G, Zhu C, Lin CY, Bredemeyer A, Forster I, Kreisel D, et al. CCL17 protects against viral myocarditis by suppressing the recruitment of regulatory T cells. J Am Heart Assoc. 2023 Feb 21;12(4):e028442.
32.
Olkhanud PB, Baatar D, Bodogai M, Hakim F, Gress R, Anderson RL, et al. Breast cancer lung metastasis requires expression of chemokine receptor CCR4 and regulatory T cells. Cancer Res. 2009 Jul 15;69(14):5996–6004.
33.
Riedel JH, Paust HJ, Krohn S, Turner JE, Kluger MA, Steinmetz OM, et al. IL-17F promotes tissue injury in autoimmune kidney diseases. J Am Soc Nephrol. 2016 Dec;27(12):3666–77.
34.
Tanchot C, Terme M, Pere H, Tran T, Benhamouda N, Strioga M, et al. Tumor-infiltrating regulatory T cells: phenotype, role, mechanism of expansion in situ and clinical significance. Cancer Microenviron. 2013 Aug;6(2):147–57.
35.
Curiel TJ, Coukos G, Zou L, Alvarez X, Cheng P, Mottram P, et al. Specific recruitment of regulatory T cells in ovarian carcinoma fosters immune privilege and predicts reduced survival. Nat Med. 2004 Sep;10(9):942–9.
36.
Gobert M, Treilleux I, Bendriss-Vermare N, Bachelot T, Goddard-Leon S, Arfi V, et al. Regulatory T cells recruited through CCL22/CCR4 are selectively activated in lymphoid infiltrates surrounding primary breast tumors and lead to an adverse clinical outcome. Cancer Res. 2009 Mar 1;69(5):2000–9.
37.
Nishikawa H, Sakaguchi S. Regulatory T cells in tumor immunity. Int J Cancer. 2010 Aug 15;127(4):759–67.
38.
Sugiyama D, Nishikawa H, Maeda Y, Nishioka M, Tanemura A, Katayama I, et al. Anti-CCR4 mAb selectively depletes effector-type FoxP3 + CD4+ regulatory T cells, evoking antitumor immune responses in humans. Proc Natl Acad Sci U S A. 2013 Oct 29;110(44):17945–50.
39.
Maeda S, Murakami K, Inoue A, Yonezawa T, Matsuki N. CCR4 blockade depletes regulatory T cells and prolongs survival in a canine model of bladder cancer. Cancer Immunol Res. 2019 Jul;7(7):1175–87.
40.
Broccoli A, Argnani L, Zinzani PL. Peripheral T-cell lymphomas: focusing on novel agents in relapsed and refractory disease. Cancer Treat Rev. 2017 Nov;60:120–9.
41.
Ishida T, Joh T, Uike N, Yamamoto K, Utsunomiya A, Yoshida S, et al. Defucosylated anti-CCR4 monoclonal antibody (KW-0761) for relapsed adult T-cell leukemia-lymphoma: a multicenter phase II study. J Clin Oncol. 2012 Mar 10;30(8):837–42.
42.
Hirahara K, Liu L, Clark RA, Yamanaka K, Fuhlbrigge RC, Kupper TS. The majority of human peripheral blood CD4+CD25highFoxp3+ regulatory T cells bear functional skin-homing receptors. J Immunol. 2006 Oct 1;177(7):4488–94.
43.
Sather BD, Treuting P, Perdue N, Miazgowicz M, Fontenot JD, Rudensky AY, et al. Altering the distribution of Foxp3(+) regulatory T cells results in tissue-specific inflammatory disease. J Exp Med. 2007 Jun 11;204(6):1335–47.
44.
Li ZQ, Wang HY, Zeng QL, Yan JY, Hu YS, Li H, et al. p65/miR-23a/CCL22 axis regulated regulatory T cells recruitment in hepatitis B virus positive hepatocellular carcinoma. Cancer Med. 2020 Jan;9(2):711–23.
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