20S proteasome in the blood plasma of boys with cryptorchidism

  • D. Toliczenko-Bernatowicz
  • E. Matuszczak
  • M. Tylicka
  • A. Sankiewicz
  • M. Komarowska
  • E. Gorodkiewicz
  • W. Debek
  • A. Hermanowicz
Rapid Communication



To evaluate the concentration of 20S proteasome in the blood plasma of boys with cryptorchidism.


Patients—50 boys aged 1–4 years (median = 2.4 years) with unilateral cryptorchidism. The control group—50 healthy, age-matched boys (aged 1–4 years, median = 2.1 years), admitted for planned herniotomy. In our study, we used a novel technique Surface PLASMON RESONANCE Imaging.


The median concentration of 20S proteasome in the blood plasma of boys with cryptorchidism was 2.5-fold higher than in boys with inguinal hernia. We noticed statistically significant difference between 20S proteasome levels in boys with cryptorchidism up to 2 years old and above 2 years old.


We believe that the 20S proteasome concentrations in the blood plasma of boys with cryptorchidism reflect the heat-induced apoptosis of germ cells.


Proteasome Cryptorchidism Boys SPR imaging 



Surface plasmon resonance imaging


Zygote-specific proteasome assembly chaperone



No external funding for this manuscript.

Compliance with ethical standards

Conflict of interest

The other authors have indicated they have no potential conflicts of interest to disclose.

Ethical approval

The study was approved by the local Ethics Committee. All parents gave their informed, written consent for the inclusion to the study, clinical and biochemical follow-up, and for surgical treatment. All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. Study was approved by the Ethics Committee of Medical University of Bialystok Poland.

Informed consent

Informed consent was obtained from all individual participants included in the study.

Financial disclosure

The other authors have indicated they have no financial relationships relevant to this article to disclose.


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Copyright information

© Italian Society of Endocrinology (SIE) 2018

Authors and Affiliations

  • D. Toliczenko-Bernatowicz
    • 1
  • E. Matuszczak
    • 1
  • M. Tylicka
    • 2
  • A. Sankiewicz
    • 3
  • M. Komarowska
    • 1
  • E. Gorodkiewicz
    • 3
  • W. Debek
    • 1
  • A. Hermanowicz
    • 1
  1. 1.Paediatric Surgery DepartmentMedical University of BialystokBialystokPoland
  2. 2.Biophysics DepartmentMedical University of BialystokBialystokPoland
  3. 3.Electrochemistry DepartmentUniversity of BialystokBialystokPoland

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