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Germline Mutation in KIF1Bβ Gene Associated with Loss of Heterozygosity: Usefulness of Next-Generation Sequencing in the Genetic Screening of Patients with Pheochromocytoma
Joint Authors
Bani, Daniele
Luconi, Michaela
De Filpo, Giuseppina
Contini, Elisa
Serio, Viola
Valeri, Andrea
Chetta, Massimiliano
Guasti, Daniele
Mannelli, Massimo
Maggi, Mario
Canu, Letizia
Ercolino, Tonino
Rapizzi, Elena
Source
International Journal of Endocrinology
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-05-30
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
The genetic approach of pheochromocytomas and paragangliomas has changed in the last two decades.
Nowadays, we know that more than 40% of patients have a germline mutation in one of the susceptibility genes identified to date.
Our aim is to underline how genetic diagnosis by next-generation sequencing (NGS) can improve the management of patients affected by pheochromocytomas and paragangliomas in our routine diagnostic screening.
We reported a case presentation and next-generation sequencing analysis supported by in silico studies and evaluation of mitochondrial status in KIF1Bβ tissue.
A 46-year-old male affected by a left secreting pheochromocytoma underwent surgery in 2017.
After surgery, the normetanephrine levels decreased very slowly and a suspected abdominal lymph node was detected.
We found a novel germline KIF1Bβ gene mutation, c.4052C > T, p.
Pro1351Leu associated with tumor loss of heterozygosity, and resulted likely-pathogenetic by in silico studies.
This mutation was also associated with an increased number of mitochondria through the electron microscopy compared with wild-type tissues as suggestive for mitochondria neoformation compensatory to the mitochondrial autophagic figures observed.
Our results underline the usefulness of next-generation sequencing in the presence of multiple tumor predisposition genes and how, at the same time, its use may result challenging for the clinicians.
To date, performing the genetic analysis according to the latest Consensus Statement is mandatory in patients affected by PHEO/PGL.
American Psychological Association (APA)
De Filpo, Giuseppina& Contini, Elisa& Serio, Viola& Valeri, Andrea& Chetta, Massimiliano& Guasti, Daniele…[et al.]. 2020. Germline Mutation in KIF1Bβ Gene Associated with Loss of Heterozygosity: Usefulness of Next-Generation Sequencing in the Genetic Screening of Patients with Pheochromocytoma. International Journal of Endocrinology،Vol. 2020, no. 2020, pp.1-8.
https://search.emarefa.net/detail/BIM-1170251
Modern Language Association (MLA)
De Filpo, Giuseppina…[et al.]. Germline Mutation in KIF1Bβ Gene Associated with Loss of Heterozygosity: Usefulness of Next-Generation Sequencing in the Genetic Screening of Patients with Pheochromocytoma. International Journal of Endocrinology No. 2020 (2020), pp.1-8.
https://search.emarefa.net/detail/BIM-1170251
American Medical Association (AMA)
De Filpo, Giuseppina& Contini, Elisa& Serio, Viola& Valeri, Andrea& Chetta, Massimiliano& Guasti, Daniele…[et al.]. Germline Mutation in KIF1Bβ Gene Associated with Loss of Heterozygosity: Usefulness of Next-Generation Sequencing in the Genetic Screening of Patients with Pheochromocytoma. International Journal of Endocrinology. 2020. Vol. 2020, no. 2020, pp.1-8.
https://search.emarefa.net/detail/BIM-1170251
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1170251