Cited by 154Acute Kidney Injury ResearchRenal Diseases and GlomerulopathiesRenal Transplantation Outcomes and Treatments

Urine TNF-α and IL-9 for clinical diagnosis of acute interstitial nephritis

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Moledina, Dennis G., Wilson, F. Perry, Pober, Jordan S., Perazella, Mark A., Singh, Nikhil, Luciano, Randy L., Obeid, Wassim, Lin, Haiqun +5 more·2019·JCI Insight

Abstract

BACKGROUND: Clinical diagnosis of acute interstitial nephritis (AIN) is challenging because of lack of a diagnostic biomarker and requires a kidney biopsy. We hypothesized that AIN is mediated by specific T cell subsets such that specific T cell cytokine levels could serve as biomarkers to distinguish AIN from other causes of acute kidney disease (AKD). METHODS: We enrolled consecutive sampling participants who underwent a kidney biopsy for AKD evaluation at 2 centers between 2015 and 2018. Three pathologists independently established AIN diagnosis through review of kidney biopsies. Through univariable and multivariable analysis of 12 selected urine and plasma cytokines, we identified 2 that were diagnostic of AIN. RESULTS: Of the 218 participants, 32 (15%) were diagnosed with AIN by all 3 pathologists. Participants with AIN had consistently higher levels of urine TNF-α and IL-9 than those with other diagnoses, including acute tubular injury, glomerular diseases, and diabetic kidney disease, and those without any kidney disease. As compared with participants in the lowest quartile, we noted higher odds of AIN in participants in the highest quartiles of TNF-α levels (adjusted odds ratio, 10.9 [1.8, 65.9]) and IL-9 levels (7.5 [1.2, 45.7]) when controlling for blood eosinophils, leukocyturia, and proteinuria. Addition of biomarkers improved area under receiver operating characteristic curve over clinicians’ prebiopsy diagnosis (0.84 [0.78, 0.91]) vs. 0.62 [(0.53, 0.71]) and a model of current tests (0.84 [0.76, 0.91] vs. 0.69 [0.58, 0.80]). CONCLUSIONS: Inclusion of urinary TNF-α and IL-9 improves discrimination over clinicians’ prebiopsy diagnosis and currently available tests for AIN diagnosis. FUNDING: Supported by NIH awards K23DK117065, T32DK007276, K24DK090203, K23DK097201, R01DK113191, UG3-DK114866, P30DK079310; the Robert E. Leet and Clara Guthrie Patterson Trust; and American Heart Association award 18CDA34060118.

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Crossref · 10.1172/jci.insight.127456

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Authors
Moledina, D. G., Wilson, F. P., Pober, J. S., Perazella, M. A., Singh, N., Luciano, R. L., Obeid, W., Lin, H., Kuperman, M., Moeckel, G. W., Kashgarian, M., Cantley, L. G., & Parikh, C. R.
Affiliations
  • Section of Nephrology, Department of Internal Medicine,
  • Yale University (US)
  • Johns Hopkins University (US)
  • Arkana Laboratories (US)
  • Department of Pathology, and
Corresponding author
Parikh, Chirag R.
Venue
JCI Insight
Published
2019-05-16
Volume
4
Issue
10
ISSN
2379-3708 (ISSN-L)
OpenAlex
W2945207519
Cited by
154
References
33
Citations by year
2026: 16 · 2025: 27 · 2024: 23 · 2023: 20 · 2022: 26 · 2021: 22 · 2020: 12 · 2019: 8
FWCI
13.13
Type
journal article
Language
en
Open access
Locations
  • JCI Insight (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institute of Diabetes and Digestive and Kidney Diseases (K23DK117065, T32DK007276, K23DK097201, K24DK090203, UG3DK114866, R01DK113191, P30DK079310)
  • American Heart Association (18CDA34060118)
  • Robert E. Leet and Clara Guthrie Patterson Trust
Topics
  • Health Sciences › Medicine › Nephrology › Acute Kidney Injury Research
  • Health Sciences › Medicine › Nephrology › Renal Diseases and Glomerulopathies
  • Health Sciences › Medicine › Transplantation › Renal Transplantation Outcomes and Treatments
Keywords
acute interstitial nephritis, urinary biomarkers, TNF-α, IL-9, acute kidney disease, T cell cytokines, diagnostic biomarkers, renal biopsy, eosinophils, pyuria, proteinuria, acute tubular injury, glomerular disease, diabetic nephropathy, cytokine panel, differential diagnosis of acute kidney injury, T cell-mediated inflammation
MeSH terms
Acute Disease, Aged, Biopsy, Eosinophils, Female, Humans, Kidney, Male, Middle Aged, Nephritis, Interstitial, Tumor Necrosis Factor-alpha, Biomarkers, Cytokines, Interleukin-9, Acute Kidney Injury

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