Skip to main content
Erschienen in: Acta Neuropathologica 1/2020

09.09.2019 | Original Paper

Subcortical TDP-43 pathology patterns validate cortical FTLD-TDP subtypes and demonstrate unique aspects of C9orf72 mutation cases

verfasst von: Ian R. Mackenzie, Manuela Neumann

Erschienen in: Acta Neuropathologica | Ausgabe 1/2020

Einloggen, um Zugang zu erhalten

Abstract

Frontotemporal lobar degeneration with TDP-43 immunoreactive (TDP-ir) inclusions (FTLD-TDP) is sub-classified based on the pattern of neocortical pathology, with each subtype showing clinical and genetic correlations. Recent studies indicate that accurate subtyping of cases may be important to help identify genetic risk factors and develop biomarkers. Although most FTLD-TDP cases are easily classified, some do not match well to one of the existing subtypes. In particular, cases with the C9orf72 repeat expansion (C9+) have been reported to show FTLD-TDP type A, type B or a combination of A and B pathology (A + B). In our series of FTLD-TDP cases, we found that those lacking the C9orf72 mutation (non-C9) were all readily classified as type A (n = 29), B (n = 16) or C (n = 18), using current criteria and standard observational methods. This classification was validated using non-biased hierarchical cluster analysis (HCA) of neocortical pathology data. In contrast, only 14/28 (50%) of the C9+ cases were classified as either pure type A or pure type B, with the remainder showing A + B features. HCA confirmed separation of the C9+ cases into three groups. We then investigated whether patterns of subcortical TDP-ir pathology helped to classify the difficult cases. For the non-C9 cases, each subtype showed a consistent pattern of subcortical involvement with significant differences among the groups. The most distinguishing features included white matter threads, neuronal intranuclear inclusions in hippocampus and striatum, and delicate threads in CA1 in type A; glial cytoplasmic inclusions in white matter and neuronal cytoplasmic inclusions (NCI) in lower motor neurons in type B; compact NCI in striatum in type C. HCA of the C9+ cases based on subcortical features increased the number that clustered with the non-C9 type A (46%) or non-C9 type B (36%); however, there remained a C9+ group with A + B features (18%). These findings suggest that most FTLD-TDP cases can be classified using existing criteria and that each group also shows characteristic subcortical TDP-ir pathology. However, C9+ cases may be unique in the degree to which their pathology overlaps between FTLD-TDP types A and B.
Literatur
1.
Zurück zum Zitat Alafuzoff I, Pikkarainen M, Neumann M, Arzberger T, Al-Sarraj S, Bodi I et al (2015) Neuropathological assessments of the pathology in frontotemporal lobar degeneration with TDP43-positive inclusions: an inter-laboratory study by the BrainNet Europe consortium. J Neural Transm 122:957–972. https://doi.org/10.1007/s00702-014-1304-1 CrossRefPubMed Alafuzoff I, Pikkarainen M, Neumann M, Arzberger T, Al-Sarraj S, Bodi I et al (2015) Neuropathological assessments of the pathology in frontotemporal lobar degeneration with TDP43-positive inclusions: an inter-laboratory study by the BrainNet Europe consortium. J Neural Transm 122:957–972. https://​doi.​org/​10.​1007/​s00702-014-1304-1 CrossRefPubMed
2.
11.
Zurück zum Zitat Gijselinck I, Van Langenhove T, van der Zee J, Sleegers K, Philtjens S, Kleinberger G et al (2012) A C9orf72 promoter repeat expansion in a Flanders-Belgian cohort with disorders of the frontotemporal lobar degeneration-amyotrophic lateral sclerosis spectrum: a gene identification study. Lancet Neurol 11:54–65. https://doi.org/10.1016/S1474-4422(11)70261-7 CrossRefPubMed Gijselinck I, Van Langenhove T, van der Zee J, Sleegers K, Philtjens S, Kleinberger G et al (2012) A C9orf72 promoter repeat expansion in a Flanders-Belgian cohort with disorders of the frontotemporal lobar degeneration-amyotrophic lateral sclerosis spectrum: a gene identification study. Lancet Neurol 11:54–65. https://​doi.​org/​10.​1016/​S1474-4422(11)70261-7 CrossRefPubMed
13.
Zurück zum Zitat Hatanpaa KJ, Bigio EH, Cairns NJ, Womack KB, Weintraub S, Morris JC et al (2008) TAR DNA-binding protein 43 immunohistochemistry reveals extensive neuritic pathology in FTLD-U: a midwest-southwest consortium for FTLD study. J Neuropathol Exp Neurol 67:271–279CrossRef Hatanpaa KJ, Bigio EH, Cairns NJ, Womack KB, Weintraub S, Morris JC et al (2008) TAR DNA-binding protein 43 immunohistochemistry reveals extensive neuritic pathology in FTLD-U: a midwest-southwest consortium for FTLD study. J Neuropathol Exp Neurol 67:271–279CrossRef
18.
Zurück zum Zitat Laferriere F, Maniecka Z, Perez-Berlanga M, Hruska-Plochan M, Gilhespy L, Hock EM et al (2019) TDP-43 extracted from frontotemporal lobar degeneration subject brains displays distinct aggregate assemblies and neurotoxic effects reflecting disease progression rates. Nat Neurosci 22:65–77. https://doi.org/10.1038/s41593-018-0294-y CrossRefPubMed Laferriere F, Maniecka Z, Perez-Berlanga M, Hruska-Plochan M, Gilhespy L, Hock EM et al (2019) TDP-43 extracted from frontotemporal lobar degeneration subject brains displays distinct aggregate assemblies and neurotoxic effects reflecting disease progression rates. Nat Neurosci 22:65–77. https://​doi.​org/​10.​1038/​s41593-018-0294-y CrossRefPubMed
37.
Zurück zum Zitat Pottier C, Ren Y, Perkerson RB III, Baker M, Jenkins GD, van Blitterswijk M et al (2019) Genome-wide analyses as part of the international FTLD-TDP whole-genome sequencing consortium reveals novel disease risk factors and increases support for immune dysfunction in FTLD. Acta Neuropathol 137:879–899. https://doi.org/10.1007/s00401-019-01962-9 CrossRefPubMed Pottier C, Ren Y, Perkerson RB III, Baker M, Jenkins GD, van Blitterswijk M et al (2019) Genome-wide analyses as part of the international FTLD-TDP whole-genome sequencing consortium reveals novel disease risk factors and increases support for immune dysfunction in FTLD. Acta Neuropathol 137:879–899. https://​doi.​org/​10.​1007/​s00401-019-01962-9 CrossRefPubMed
Metadaten
Titel
Subcortical TDP-43 pathology patterns validate cortical FTLD-TDP subtypes and demonstrate unique aspects of C9orf72 mutation cases
verfasst von
Ian R. Mackenzie
Manuela Neumann
Publikationsdatum
09.09.2019
Verlag
Springer Berlin Heidelberg
Erschienen in
Acta Neuropathologica / Ausgabe 1/2020
Print ISSN: 0001-6322
Elektronische ISSN: 1432-0533
DOI
https://doi.org/10.1007/s00401-019-02070-4

Weitere Artikel der Ausgabe 1/2020

Acta Neuropathologica 1/2020 Zur Ausgabe

Leitlinien kompakt für die Neurologie

Mit medbee Pocketcards sicher entscheiden.

Seit 2022 gehört die medbee GmbH zum Springer Medizin Verlag

Akuter Schwindel: Wann lohnt sich eine MRT?

28.04.2024 Schwindel Nachrichten

Akuter Schwindel stellt oft eine diagnostische Herausforderung dar. Wie nützlich dabei eine MRT ist, hat eine Studie aus Finnland untersucht. Immerhin einer von sechs Patienten wurde mit akutem ischämischem Schlaganfall diagnostiziert.

Niedriger diastolischer Blutdruck erhöht Risiko für schwere kardiovaskuläre Komplikationen

25.04.2024 Hypotonie Nachrichten

Wenn unter einer medikamentösen Hochdrucktherapie der diastolische Blutdruck in den Keller geht, steigt das Risiko für schwere kardiovaskuläre Ereignisse: Darauf deutet eine Sekundäranalyse der SPRINT-Studie hin.

Frühe Alzheimertherapie lohnt sich

25.04.2024 AAN-Jahrestagung 2024 Nachrichten

Ist die Tau-Last noch gering, scheint der Vorteil von Lecanemab besonders groß zu sein. Und beginnen Erkrankte verzögert mit der Behandlung, erreichen sie nicht mehr die kognitive Leistung wie bei einem früheren Start. Darauf deuten neue Analysen der Phase-3-Studie Clarity AD.

Viel Bewegung in der Parkinsonforschung

25.04.2024 Parkinson-Krankheit Nachrichten

Neue arznei- und zellbasierte Ansätze, Frühdiagnose mit Bewegungssensoren, Rückenmarkstimulation gegen Gehblockaden – in der Parkinsonforschung tut sich einiges. Auf dem Deutschen Parkinsonkongress ging es auch viel um technische Innovationen.

Update Neurologie

Bestellen Sie unseren Fach-Newsletter und bleiben Sie gut informiert.