open access

Vol 72, No 2 (2021)
Original paper
Submitted: 2020-08-10
Accepted: 2020-09-15
Published online: 2020-10-28
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Is there a common cause for paediatric Cushing’s disease?

Katarzyna Pasternak-Pietrzak1, Fabio R. Faucz2, Constantine A. Stratakis2, Elżbieta Moszczyńska1, Marcin Roszkowski1, Wiesława Grajkowska3, Maciej Pronicki3, Mieczysław Szalecki14
·
Pubmed: 33125691
·
Endokrynol Pol 2021;72(2):104-107.
Affiliations
  1. Department of Neurosurgery, The Children’s Memorial Health Institute (CMHI), Warsaw, Poland, Warsaw, Poland
  2. Section on Endocrinology and Genetics, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland, United States, Bethesda, United States
  3. Pathology Department, The Children’s Memorial Health Institute, Warsaw, Poland
  4. Collegium Medicum, Jan Kochanowski University, Kielce, Poland

open access

Vol 72, No 2 (2021)
Original Paper
Submitted: 2020-08-10
Accepted: 2020-09-15
Published online: 2020-10-28

Abstract

Introduction: According to recent literature, somatic mutations in the ubiquitin-specific protease 8 (USP8) gene are the most common changes in patients with Cushing’s disease (CD). Data on the frequency of these mutations in the paediatric population are limited. The aim of the presented study was to determine the frequency of the USP8 gene mutations in a group of paediatric patients with CD treated at the Children’s Memorial Health Institute (CMHI).

Material and methods: Eighteen patients (nine females) with CD were treated at CMHI, Warsaw, Poland between 1993 and 2019. All patients underwent transsphenoidal surgery (TSS) as a primary treatment for CD. The average age of all patients at TSS was 13.10 years (5.42–17.25). DNA was extracted from formalin-fixed paraffin-embedded resected tumour tissue. Sanger sequencing was performed on DNA sequence corresponding to the exon 14 of USP8 gene.

Results: The mean age at diagnosis of CD was 13.08 years, and the average duration of symptoms before diagnosis was 2.96 years. All patients were operated at CMHI by the same neurosurgeon. Fifteen out of 18 patients (83.33%) had initial biochemical remission after a single TSS procedure (post-operative serum cortisol < 1.8 μg/dL). The result of genetic testing was negative for all samples at the hotspot area of the USP8 gene.

Conclusion: The current retrospective study demonstrates that mutations in the USP8 gene may not be as common a cause of paediatric Cushing’s disease, as previously reported.

Abstract

Introduction: According to recent literature, somatic mutations in the ubiquitin-specific protease 8 (USP8) gene are the most common changes in patients with Cushing’s disease (CD). Data on the frequency of these mutations in the paediatric population are limited. The aim of the presented study was to determine the frequency of the USP8 gene mutations in a group of paediatric patients with CD treated at the Children’s Memorial Health Institute (CMHI).

Material and methods: Eighteen patients (nine females) with CD were treated at CMHI, Warsaw, Poland between 1993 and 2019. All patients underwent transsphenoidal surgery (TSS) as a primary treatment for CD. The average age of all patients at TSS was 13.10 years (5.42–17.25). DNA was extracted from formalin-fixed paraffin-embedded resected tumour tissue. Sanger sequencing was performed on DNA sequence corresponding to the exon 14 of USP8 gene.

Results: The mean age at diagnosis of CD was 13.08 years, and the average duration of symptoms before diagnosis was 2.96 years. All patients were operated at CMHI by the same neurosurgeon. Fifteen out of 18 patients (83.33%) had initial biochemical remission after a single TSS procedure (post-operative serum cortisol < 1.8 μg/dL). The result of genetic testing was negative for all samples at the hotspot area of the USP8 gene.

Conclusion: The current retrospective study demonstrates that mutations in the USP8 gene may not be as common a cause of paediatric Cushing’s disease, as previously reported.

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Keywords

Cushing’s disease; transsphenoidal surgery; USP8 gene mutations; molecular background

About this article
Title

Is there a common cause for paediatric Cushing’s disease?

Journal

Endokrynologia Polska

Issue

Vol 72, No 2 (2021)

Article type

Original paper

Pages

104-107

Published online

2020-10-28

Page views

1173

Article views/downloads

705

DOI

10.5603/EP.a2020.0073

Pubmed

33125691

Bibliographic record

Endokrynol Pol 2021;72(2):104-107.

Keywords

Cushing’s disease
transsphenoidal surgery
USP8 gene mutations
molecular background

Authors

Katarzyna Pasternak-Pietrzak
Fabio R. Faucz
Constantine A. Stratakis
Elżbieta Moszczyńska
Marcin Roszkowski
Wiesława Grajkowska
Maciej Pronicki
Mieczysław Szalecki

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