TY - JOUR
T1 - CD8+ T cells modulate autosomal dominant polycystic kidney disease progression
AU - Kleczko, Emily K.
AU - Marsh, Kenneth H.
AU - Tyler, Logan C.
AU - Furgeson, Seth B.
AU - Bullock, Bonnie L.
AU - Altmann, Christopher J.
AU - Miyazaki, Makoto
AU - Gitomer, Berenice Y.
AU - Harris, Peter C.
AU - Weiser-Evans, Mary C.M.
AU - Chonchol, Michel B.
AU - Clambey, Eric T.
AU - Nemenoff, Raphael A.
AU - Hopp, Katharina
N1 - Publisher Copyright:
© 2018 International Society of Nephrology
PY - 2018/12
Y1 - 2018/12
N2 - Autosomal dominant polycystic kidney disease (ADPKD) is the most prevalent inherited nephropathy. To date, therapies alleviating the disease have largely focused on targeting abnormalities in renal epithelial cell signaling. ADPKD has many hallmarks of cancer, where targeting T cells has brought novel therapeutic interventions. However, little is known about the role and therapeutic potential of T cells in ADPKD. Here, we used an orthologous ADPKD model, Pkd1 p.R3277C (RC), to begin to define the role of T cells in disease progression. Using flow cytometry, we found progressive increases in renal CD8+ and CD4+ T cells, correlative with disease severity, but with selective activation of CD8+ T cells. By immunofluorescence, T cells specifically localized to cystic lesions and increased levels of T-cell recruiting chemokines (CXCL9/CXCL10) were detected by qPCR/in situ hybridization in the kidneys of mice, patients, and ADPKD epithelial cell lines. Importantly, immunodepletion of CD8+ T cells from one to three months in C57Bl/6 Pkd1RC/RC mice resulted in worsening of ADPKD pathology, decreased apoptosis, and increased proliferation compared to IgG-control, consistent with a reno-protective role of CD8+ T cells. Thus, our studies suggest a functional role for T cells, specifically CD8+ T cells, in ADPKD progression. Hence, targeting this pathway using immune-oncology agents may represent a novel therapeutic approach for ADPKD.
AB - Autosomal dominant polycystic kidney disease (ADPKD) is the most prevalent inherited nephropathy. To date, therapies alleviating the disease have largely focused on targeting abnormalities in renal epithelial cell signaling. ADPKD has many hallmarks of cancer, where targeting T cells has brought novel therapeutic interventions. However, little is known about the role and therapeutic potential of T cells in ADPKD. Here, we used an orthologous ADPKD model, Pkd1 p.R3277C (RC), to begin to define the role of T cells in disease progression. Using flow cytometry, we found progressive increases in renal CD8+ and CD4+ T cells, correlative with disease severity, but with selective activation of CD8+ T cells. By immunofluorescence, T cells specifically localized to cystic lesions and increased levels of T-cell recruiting chemokines (CXCL9/CXCL10) were detected by qPCR/in situ hybridization in the kidneys of mice, patients, and ADPKD epithelial cell lines. Importantly, immunodepletion of CD8+ T cells from one to three months in C57Bl/6 Pkd1RC/RC mice resulted in worsening of ADPKD pathology, decreased apoptosis, and increased proliferation compared to IgG-control, consistent with a reno-protective role of CD8+ T cells. Thus, our studies suggest a functional role for T cells, specifically CD8+ T cells, in ADPKD progression. Hence, targeting this pathway using immune-oncology agents may represent a novel therapeutic approach for ADPKD.
KW - CD8 T cells
KW - Pkd1 RC mouse model
KW - adaptive immunity
KW - autosomal dominant polycystic kidney disease
UR - http://www.scopus.com/inward/record.url?scp=85057137250&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85057137250&partnerID=8YFLogxK
U2 - 10.1016/j.kint.2018.06.025
DO - 10.1016/j.kint.2018.06.025
M3 - Article
C2 - 30249452
AN - SCOPUS:85057137250
SN - 0085-2538
VL - 94
SP - 1127
EP - 1140
JO - Kidney international
JF - Kidney international
IS - 6
ER -