Volume 75, Issue 3 e13723
ORIGINAL PAPER

Possible role of the receptor of advanced glycation end products (RAGE) in the clinical course of prostate neoplasia in patients with and without type 2 diabetes mellitus

Gamze Akkus

Corresponding Author

Gamze Akkus

Department of Endocrinology, Cukurova University, Adana, Turkey

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Volkan Izol

Volkan Izol

Department of Urology, Cukurova University, Adana, Turkey

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Fesih Ok

Fesih Ok

Department of Urology, Cukurova University, Adana, Turkey

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Mehtap Evran

Mehtap Evran

Department of Endocrinology, Cukurova University, Adana, Turkey

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Merve Inceman

Merve Inceman

Department of Pathology, Cukurova University, Adana, Turkey

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Seyda Erdogan

Seyda Erdogan

Department of Pathology, Cukurova University, Adana, Turkey

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Halil Mahir Kaplan

Halil Mahir Kaplan

Department of Pharmacology, Cukurova University, Adana, Turkey

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Murat Sert

Murat Sert

Department of Endocrinology, Cukurova University, Adana, Turkey

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Tamer Tetiker

Tamer Tetiker

Department of Endocrinology, Cukurova University, Adana, Turkey

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First published: 21 September 2020
Citations: 6

Abstract

Aim

The expression of the cognate receptor of advanced glycation end products (RAGE) in malignant tissues of patients with type 2 diabetes has been suggested as a co-factor determining the clinical course and prognosis. We aimed to investigate the relationship between RAGE expression and clinicopathological features of prostate neoplasia.

Methods

Tissue samples of 197 patients, 64 (24 patients with type 2 diabetes and 40 controls) with benign prostate hyperplasia (BPH) and 133 (71 patients with type 2 diabetes and 62 controls) with localised or metastatic prostate cancer (LPCa/MetPCa) were included in the study. The expression of RAGE in prostate specimens was studied immunohistochemically. RAGE scores were determined according to the extent of immunoreactivity and staining intensity.

Results

RAGE expression in BPH group (patients with type 2 diabetes and controls) was negative. Patients with both LPCa and MetPCa had significantly higher scores than those with BPH (P < .001). The mean RAGE scores of patients with type 2 diabetes LPCa and MetPCa were 4.71 ± 3.14 and 4.97 ± 3.69. The mean scores of control LPCa and MetPCa were 1.52 ± 1.87 and 1.69 ± 1.58, respectively. The scores of patients with type 2 diabetes LPCa and MetPCa were significantly higher than those of control LPCa and MetPCa (P = .01 and P < .001, respectively).

Conclusion

We found higher RAGE expression levels in malignant prostate neoplasia than in BPH. As expected, patients with diabetes had higher scores than control patients. Disease progression and survival parameters were worse in patients with high RAGE levels. RAGE expression may be a useful biomarker for the diagnosis and prognosis of prostate cancer.

DISCLOSURE

We declare that there was no conflict of interest.

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