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Int J Mol Sci. 2017 Dec 6;18(12). pii: E2632. doi: 10.3390/ijms18122632.

Aberrant N-Glycosylation Profile of Serum Immunoglobulins is a Diagnostic Biomarker of Urothelial Carcinomas.

Author information

1
Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, Japan. yosage1205@yahoo.co.jp.
2
Department of Advanced Transplant and Regenerative Medicine, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, Japan. tohruyon@hirosaki-u.ac.jp.
3
Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, Japan. noro.daisuke@camel.plala.or.jp.
4
Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, Japan. born_2b_snower@yahoo.co.jp.
5
Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, Japan. y_kojima0319@yahoo.co.jp.
6
Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, Japan. shingoh@hirosaki-u.ac.jp.
7
Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, Japan. tobisawa@hirosaki-u.ac.jp.
8
Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, Japan. moribio@hirosaki-u.ac.jp.
9
Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, Japan. yamahaya10@yahoo.co.jp.
10
Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, Japan. tsushi.imai@gmail.com.
11
Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, Japan. uroyone@hirosaki-u.ac.jp.
12
Department of Advanced Transplant and Regenerative Medicine, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, Japan. bikkuri@opal.plala.or.jp.
13
Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, Japan. goodwin@hirosaki-u.ac.jp.
14
Graduate School of Life Science, Frontier Research Centre for Advanced Material and Life Science, Hokkaido University, Sapporo 060-0810, Japan. tanaka@soyaku.co.jp.
15
Graduate School of Life Science, Frontier Research Centre for Advanced Material and Life Science, Hokkaido University, Sapporo 060-0810, Japan. shin@sci.hokudai.ac.jp.
16
Department of Social Medicine, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, Japan. k-shizu@hirosaki-u.ac.jp.
17
Department of Social Medicine, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, Japan. ippei@hirosaki-u.ac.jp.
18
Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, Japan. coyama@hirosaki-u.ac.jp.
19
Department of Advanced Transplant and Regenerative Medicine, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, Japan. coyama@hirosaki-u.ac.jp.

Abstract

The aim of this study to determine whether the aberrant N-glycosylated serum immunoglobulins (Igs) can be applied as a diagnostic marker of urothelial carcinoma (UC). Between 2009 and 2016, we randomly obtained serum available from 237 UC and also 96 prostate cancer as other cancer controls from our serum bank and also obtained-from 339 healthy volunteers (HV)-controls obtained from community-dwelling volunteers in Iwaki Health Promotion Project. A total of 32 types of N-glycan levels on Igs were determined by high-throughput N-glycomics and analyzed by multivariable discriminant analysis. We found five UC-associated aberrant N-glycans changes on Igs and also found that asialo-bisecting GlcNAc type N-glycan on Igs were significantly accumulated in UC patients. The diagnostic N-glycan Score (dNGScore) established by combination of five N-glycans on Igs discriminated UC patients from HV and prostate cancer (PC) patients with 92.8% sensitivity and 97.2% specificity. The area under the curve (AUC) for of the dNGScore was 0.969 for UC detection that was much superior to that of urine cytology (AUC, 0.707) and hematuria (AUC, 0.892). Furthermore, dNGScore can detect hematuria and urine cytology negative patients. The dNGscore based on aberrant N-glycosylation signatures of Igs were found to be promising diagnostic biomarkers of UCs.

KEYWORDS:

N-glycomics; aberrant N-glycosylation; diagnostic biomarker; immunogloburins; upper urinary tract urothelial carcinoma; urothelial carcinoma of the bladder

PMID:
29210993
PMCID:
PMC5751235
DOI:
10.3390/ijms18122632
[Indexed for MEDLINE]
Free PMC Article

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