Zusammenfassung
Als paraneoplastische neurologische Syndrome (PNS) werden seltene neurologische Erkrankungen bezeichnet, die in zeitlicher Nähe zu einer Tumordiagnose auftreten, jedoch nicht direkt Folge des Tumors, seiner Metastasen oder bedingt durch die Tumorbehandlung sind. Ursächlich ist am ehesten eine fehlgeleitete Immunreaktion. Neben den klassischen PNS, die in Assoziation mit Antikörpern gegen intrazelluläre Antigene auftreten und nur begrenzt auf eine Behandlung ansprechen, wurden in den letzten Jahren neue Entitäten von Autoimmunenzephalitiden fakultativ-paraneoplastischer Genese beschrieben. Letztere sind mit Antikörpern gegen neuronale Oberflächenantigene assoziiert und weisen eine höhere Prävalenz als die klassischen PNS auf. Beide Krankheitsgruppen unterscheiden sich insbesondere hinsichtlich der Prognose und des Ansprechens auf eine Immunbehandlung. Darüber hinaus sind die Antikörper gegen neuronale Oberflächenantigene im Sinne einer „synaptischen Autoimmunität“ wahrscheinlich direkt an der Pathogenese dieser Syndrome beteiligt.
Summary
Paraneoplastic neurological syndromes (PNS) are defined as remote effects on the central and peripheral nervous system that are not caused directly by the tumor, its metastases and treatment, or metabolic disorders. The most probable cause is a falsely initiated immune reaction. Well-defined classical PNSs are associated with distinct tumors and occur with onconeural antibodies directed against intracellular neuronal antigens. However, response to therapy is limited. Recently, new antibodies directed against neuronal surface antigens were described in encephalitic syndromes of autoimmune origin. These probably antibody-mediated disorders are more frequent than classical PNS, occur with or without tumor association and often show a good response to immunosuppressive treatment.
Abbreviations
- AGNA:
-
antigliale nukleäre Antikörper
- AMPA-R:
-
α-Amino-3-Hydroxy-5-Methyl-4-Isoxazol-Propion-Säure-Rezeptor
- ANNA-3:
-
antineuronaler Antikörper 3
- APCA-2:
-
Anti-Purkinje-Zell-Antikörper 2
- ARHGAP26:
-
rho GTPase activating protein 26
- CASPR2:
-
contactin-associated protein-like 2
- CV2/CRMP5:
-
collapsin response mediator protein 5
- DNER:
-
delta/notch-like epidermal growth factor-related receptor
- D2R:
-
Dopamin-2-Rezeptor
- FBDS:
-
faziobrachiale dystone Anfälle
- FDG-PET:
-
Fluordesoxyglucose-Positronenemissionstomographie
- GABAB-R:
-
γ-Amino-Buttersäure-Rezeptor
- GAD:
-
Glutamat-Decarboxylase
- GluR:
-
Glutamatrezeptor
- GlyR:
-
Glycin-Rezeptor
- LE:
-
limbische Enzephalitis
- LEMS:
-
Lambert-Eaton-Myasthenie-Syndrom
- LGI1:
-
leucine-rich glioma inactivated 1
- mGluR5:
-
metabotroper Glutamatrezeptor 5
- nACh R:
-
nikontinerger ganglionärer Acetylcholin-Rezeptor
- NMDA-R:
-
N-Methyl-D-Aspartat-Rezeptor
- OCT:
-
optische Kohärenztomographie
- OMS:
-
Opsoklonus-Myoklonus-Syndrom
- PEM:
-
paraneoplastische Enzephalomyelitis
- PERM:
-
progressive Enzephalomyelitis mit Rigidität und Myoklonus
- PKD:
-
paraneoplastische Kleinhirndegeneration
- PNS:
-
paraneoplastische neurologische Syndrome
- SCLC:
-
small cell lung cancer (kleinzelliges Lungenkarzinom)
- SOX1:
-
sry-like high mobility group box 1
- SSN:
-
subakute sensorische Neuropathie
- VGCC:
-
voltage-gated calcium channel
- VGKC:
-
voltage gated potassium channel
- Zic4:
-
zinc-finger of the cerebellum protein 4
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Einhaltung ethischer Richtlinien
Interessenkonflikt. S. Rauer ist Mitinhaber der Firma ravo-Diagnostika GmbH, Freiburg. Diese Firma entwickelt, produziert und vertreibt serologische Testkits zur Bestimmung paraneoplastischer antineuronaler Autoantikörper. O. Stich und S. Rauer haben Vortragshonorare von folgenden Firmen erhalten: Bayer, Baxter, Biogen, Merck-Serono, Novartis, RG, Sanofi Aventis, Genzyme, Teva. Dieser Beitrag beinhaltet keine Studien an Menschen oder Tieren.
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Stich, O., Rauer, S. Paraneoplastische neurologische Syndrome und Autoimmunenzephalitiden. Nervenarzt 85, 485–501 (2014). https://doi.org/10.1007/s00115-014-4030-x
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DOI: https://doi.org/10.1007/s00115-014-4030-x
Schlüsselwörter
- Antineuronale Antikörper
- Autoimmunenzephalitis
- Limbische Enzephalitis
- Kleinhirndegeneration
- Subakute sensorische Neuropathie