NEAT1-TFE3 and KAT6A-TFE3 renal cell carcinomas, new members of MiT family translocation renal cell carcinoma

Microphthalmia-associated transcription factor (MiT) family translocation renal cell carcinoma harbors variable gene fusions involving either TFE3 or TFEB genes. Multiple 5' fusion partners for TFE3 have been reported, including ASPSCR1, CLTC, DVL2, LUC7L3, KHSRP, PRCC, PARP14, NONO, SFPQ1, MED15, and RBM10. Each of these fusion genes activates TFE3 transcription which can be detected by immunostaining. Using targeted RNA-sequencing, TFE3 fusion gene partners were identified in 5 cases of TFE3 immunohistochemistry positive translocation renal cell carcinoma. Three cases demonstrated known fusions: ASPSCR1-TFE3, MED15-TFE3 and RBM10-TFE3. However, two cases showed unreported NEAT1-TFE3 and KAT6A-TFE3 fusion transcripts. The NEAT1-TFE3 RCC arose in a 59-year-old male; which demonstrated overlapping morphological features seen in NEAT2(MALAT1)-TFEB t(6;11) renal cell carcinoma, including biphasic alveolar/nested tumor cells with eosinophilic cytoplasm. The KAT6A-TFE3 renal cell carcinoma demonstrated typical morphological features of TFE3/Xp11 renal cell carcinoma including papillae, eosinophilic cytoplasm with focal clearing and abundant psammoma bodies. KAT6A gene fusion was reported in some cases of acute myeloid leukemia, which has not been previously reported in solid tumors. This report highlights the genetic complexity of TFE3 translocation renal cell carcinoma; and RNA-sequencing is a powerful approach for elucidating the underlying genetic alterations.

Medienart:

E-Artikel

Erscheinungsjahr:

2019

Erschienen:

2019

Enthalten in:

Zur Gesamtaufnahme - volume:32

Enthalten in:

Modern pathology : an official journal of the United States and Canadian Academy of Pathology, Inc - 32(2019), 5 vom: 08. Mai, Seite 710-716

Sprache:

Englisch

Beteiligte Personen:

Pei, Jianming [VerfasserIn]
Cooper, Harry [VerfasserIn]
Flieder, Douglas B [VerfasserIn]
Talarchek, Jacqueline N [VerfasserIn]
Al-Saleem, Tahseen [VerfasserIn]
Uzzo, Robert G [VerfasserIn]
Dulaimi, Essel [VerfasserIn]
Patchefsky, Arthur S [VerfasserIn]
Testa, Joseph R [VerfasserIn]
Wei, Shuanzeng [VerfasserIn]

Links:

Volltext

Themen:

Basic Helix-Loop-Helix Leucine Zipper Transcription Factors
Biomarkers, Tumor
Case Reports
EC 2.3.1.48
Histone Acetyltransferases
Journal Article
KAT6A protein, human
NEAT1 long non-coding RNA, human
RNA, Long Noncoding
Research Support, N.I.H., Extramural
TFE3 protein, human

Anmerkungen:

Date Completed 27.04.2020

Date Revised 10.02.2023

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1038/s41379-018-0191-7

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM292507437