Evidence map›Paper›PMID 42390645›Full record

ArticleEndocrine pathology2026

Distinct ALK Expression Patterns Are Associated with Canonical and Noncanonical STRN::ALK Transcript Architectures in Oncocytic Thyroid Neoplasms.

Debora Mota Dias Thomaz, Thais Biude Mendes, Thaise Nayane Ribeiro Carneiro, Luiza Sisdelli, Ana Carolina de Jesus Paniza, André Uchimura Bastos, Janete Maria Cerutti

Abstract read
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Article in Endocrine pathology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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1 · What the graph read from it

What it found

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2 · The registry

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3 · Its place in the literature

Who cites it

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4 · The record

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5 · Who and what money

Authors and funding

7 authors.

Debora Mota Dias ThomazGenetic Bases of Thyroid Tumors Laboratory, Division of Genetics, Department of Morphology and Genetics, Universidade Federal de São Paulo - Escola Paulista de Medicina, Pedro de Toledo 669, 11th floor, São Paulo, SP, 04039-032, Brazil.ORCID http://orcid.org/0000-0003-0626-5352
Thais Biude MendesGenetic Bases of Thyroid Tumors Laboratory, Division of Genetics, Department of Morphology and Genetics, Universidade Federal de São Paulo - Escola Paulista de Medicina, Pedro de Toledo 669, 11th floor, São Paulo, SP, 04039-032, Brazil.ORCID http://orcid.org/0000-0003-0114-4578
Thaise Nayane Ribeiro CarneiroGenetic Bases of Thyroid Tumors Laboratory, Division of Genetics, Department of Morphology and Genetics, Universidade Federal de São Paulo - Escola Paulista de Medicina, Pedro de Toledo 669, 11th floor, São Paulo, SP, 04039-032, Brazil.ORCID http://orcid.org/0000-0002-4637-1240
Luiza SisdelliGenetic Bases of Thyroid Tumors Laboratory, Division of Genetics, Department of Morphology and Genetics, Universidade Federal de São Paulo - Escola Paulista de Medicina, Pedro de Toledo 669, 11th floor, São Paulo, SP, 04039-032, Brazil.ORCID http://orcid.org/0000-0001-7452-5756
Ana Carolina de Jesus PanizaGenetic Bases of Thyroid Tumors Laboratory, Division of Genetics, Department of Morphology and Genetics, Universidade Federal de São Paulo - Escola Paulista de Medicina, Pedro de Toledo 669, 11th floor, São Paulo, SP, 04039-032, Brazil.ORCID http://orcid.org/0009-0003-2009-9079
André Uchimura BastosGenetic Bases of Thyroid Tumors Laboratory, Division of Genetics, Department of Morphology and Genetics, Universidade Federal de São Paulo - Escola Paulista de Medicina, Pedro de Toledo 669, 11th floor, São Paulo, SP, 04039-032, Brazil.ORCID http://orcid.org/0000-0002-0903-8035
Janete Maria CeruttiGenetic Bases of Thyroid Tumors Laboratory, Division of Genetics, Department of Morphology and Genetics, Universidade Federal de São Paulo - Escola Paulista de Medicina, Pedro de Toledo 669, 11th floor, São Paulo, SP, 04039-032, Brazil. j.cerutti@unifesp.br.ORCID http://orcid.org/0000-0003-0156-8274

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Oncocytic thyroid carcinomas are characterized by a unique chromosomal landscape and frequent resistance to radioactive iodine therapy, underscoring the need for improved molecular characterization. Although ALK rearrangements, particularly STRN::ALK fusions, have been described in thyroid carcinomas, their biological and clinical significance in oncocytic thyroid neoplasms remains unclear. This study investigated STRN exon 3-ALK exon 20-derived transcripts in 56 oncocytic thyroid neoplasms using RT-PCR, followed by cloning and Sanger sequencing of positive cases. Transcript-positive cases were further evaluated by fluorescence in situ hybridization (FISH), immunohistochemistry (IHC), and in silico structural modeling. STRN::ALK-derived transcripts were detected in 9 of 56 tumors; however, their frequency reflected the combined detection of distinct transcript architectures. Only 2 of 56 tumors (3.6%) harbored canonical in-frame STRN::ALK fusions, whereas 7 of 56 tumors (12.5%) contained noncanonical out-of-frame variants. Although ALK rearrangement by FISH was confirmed in all transcript-positive tumors irrespective of transcript architecture, detectable ALK protein expression by IHC was observed only in tumors harboring canonical in-frame fusions, whereas all noncanonical variants lacked detectable ALK protein expression. Structural modeling was concordant with these observations, suggesting preservation of kinase-domain features in canonical fusions and predicted disruption in noncanonical variants. Overall, STRN::ALK transcripts in oncocytic thyroid neoplasms exhibit marked architectural heterogeneity with distinct ALK protein expression patterns. ALK FISH-positive/IHC-negative cases should be interpreted cautiously, as they may not represent biologically equivalent ALK-driven neoplasia, with uncertain therapeutic relevance. Integrated molecular and protein-level assessment may support interpretation of ALK alterations in oncocytic thyroid neoplasms.

Indexed as

Adenoma, OxyphilicAnaplastic Lymphoma KinaseThyroid NeoplasmsAdultAgedCalmodulin-Binding ProteinsFemaleGene RearrangementHumansImmunohistochemistryIn Situ Hybridization, FluorescenceMaleMembrane ProteinsMiddle AgedNerve Tissue ProteinsReceptor Protein-Tyrosine KinasesALK protein, humanAnaplastic Lymphoma KinaseCalmodulin-Binding ProteinsMembrane ProteinsNerve Tissue ProteinsReceptor Protein-Tyrosine KinasesSTRN protein, humanALK Fusion ProteinsAnaplastic Lymphoma KinaseFluorescence In Situ Hybridization.ImmunohistochemistryOncocytic Thyroid Neoplasms

Identifiers

PMID42390645
PMCPMC13328310

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.