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ELECTRON MICROSCOPICAL AND IMMUNOHISTOCHEMICAL STUDY OF LOWER MOTOR NEURONS IN AMYOTROPHIC LATERAL SCLEROSIS

Research Project

Project/Area Number 06670679
Research Category

Grant-in-Aid for General Scientific Research (C)

Allocation TypeSingle-year Grants
Research Field Neurology
Research InstitutionTOKYO METROPOLITAN INSTITUTE FOR NEUROSCIENCE

Principal Investigator

NAKANO Imaharu  TOKYO MET.INST.FOR NEUROSCI,NEUROPATHOLOGY,DIRECTOR, 神経病理学研究部門, 副参事 (40092423)

Co-Investigator(Kenkyū-buntansha) ODA Masaya  TOKYO NEUROL HOSP PATHOLOGY AND LABORATORY MEDICINE,DIRECTOR, 検査科, 部長
Project Period (FY) 1994 – 1995
Project Status Completed (Fiscal Year 1995)
Budget Amount *help
¥1,600,000 (Direct Cost: ¥1,600,000)
Fiscal Year 1995: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 1994: ¥1,100,000 (Direct Cost: ¥1,100,000)
KeywordsAMYOTROPHIC LATERAL SCLEROSIS / UBIQUITIN / LYSOSOME / ELECTRON MICROSCOPY / INCLUSION / LOWER MOTOR NEURON / hyaline inclusion / skein-like inclusion
Research Abstract

LOWER MOTOR NEURONS (LMNs) IN AMYOTROPHIC LATERAL SCLEROSIS (ALS) CONTAIN SEVERAL TYPES OF CYTOPLASMIC INCLUSIONS,AMONG WHICH SKEIN-LIKE INCLUSIONS (SLIs) AND HYALINE INCLUSIONS (OR ROUND INCLUSIONS [RIs]) ARE UBIQUITINATED.UBIQUITIN IS A CYTOPLASMIC PROTEIN REQUIRED FOR DEGRADATION TO AMINO ACIDS OF VARIOUS PROTEINS THAT HAVE DEGENERATED OR BECOME UNNECESSARY.THERFEORE,UBIQUITINATION OF SOME CYTOPLASMIC PROFILES MEANS THAT THE DEGRADATION SYSTEM USING UBIQUITIN IN ABORTED.THUS,IT IS LIKELY THAT SLIs AND RIs WHICH ARE BOTH UBIQUITINATED HAVE ESCAPED UBIQUITIN DEGRADATION SYSTEM,BUT THEIR FINAL DESTINATION IN NOT KNOWN.
IN THIS STUDY,WE DETECTED 5-6 NEURONS CONTAINING SLIs AND/OR RIs BY OBSERVING SPINAL CORD LMNs OF OVER 20 CASES OF ALS.SLIs ARE BUNDLES OF ABOUT 15NM ABNORMAL FILAMENTS ; THEY WERE USUALLY EXPOSED TO THE CYTOSOL WITHOUT LIMITING MEMBRANES,WHILE SOME WERE SURROUNDED BY FLAT CISTERNS TO VARIOUS DEGREES.THE CISTERNS QUITE RESEMBLED THOSE WHICH ARE SEEN IN THE EARLY STAGES OF FORMATION OF GRANULOVACUOLAR DEGENERATION IN THE PYRAMIDAL NEURONS OF THE AMMON'S HORN.ON THE OTHER HAND,RIs.WHICH WERE COMPOSED OF NEUROFILAMENTS,ABNORMAL FILAMENTS SIMILAR TO THOSE OF SLIs, AND VARIOUS AGGREGATES OF ELECTRON DENSE GRANULES,ACCUMULATED FLAT CISTERNS AND AUTOLYOSOME-LIKE PROFILES AROUND THEM TO VARIOUS DEGREES.
THE ABOVE FINDINGS INDICATE THAT AT LEAST SOME OF UBIQUITINATED INCLUSIONS IN ALS LOWER MOTOR NEURONS ARE TREATED BY THE LYSOSOMAL SYSTEM.

Report

(3 results)
  • 1995 Annual Research Report   Final Research Report Summary
  • 1994 Annual Research Report
  • Research Products

    (26 results)

All Other

All Publications (26 results)

  • [Publications] 中野今治: "ALSの痴呆" 神経進歩. 40. 63-74 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] 柳下章、中野今治、ほか: "筋萎縮性側索硬化症の脳のMRI" 神経進歩. 40. 53-63 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Yagishita A, Oda M, Nakano I: "Location of the pyramidal tract" Raiology. 194. 290-290 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Yahishita A, Nakano I, et al: "Localization of the corticospinal tract in the internal capsule on MR imaging" Radiology. 191. 455-460 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Kato S, Oda M, et al: "Motor neuron disease with involvement of the pallido-luysio-nigral systemand mesencephalic tegmentum." Clin Neuropathol. 14. 241-244 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Kato S, Oda M, et al: "Decrease of medullary catecholaminergic neurons in multiple system atrophy and Parkinson's disease and their preservation in amyotrphic lateral sclerosis." J Neurol Sci. 132. 216-221 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] 中野今治: "運動ニューロンの変性疾患(内科学、上田秀雄ほか編)" 朝倉書店, 1896-1901 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Nakano I, Shibata T, et al: "On the possibility of autolysosomal processing of skeinlike in clusions in amyotrophic lateral sclerosis-Electron microscopin observation-. In: ALS-from Charcot to the present and into the future, ed by FC Rose" Smith-Gordon, 173-186 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] LEIGH PN,ANDERTION BH,ET AL :"UBIQUITIN DEPOSITS IN ANTERIOR HORN CELLS IN MOTOR NEURONE DISEASE" NEUROSCI LETT. 93. 197-203 (1988)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] LOWE J,LENNOX G,ET AL :"A FILAMENTOUS INCLUSION BODY WITHIN ANTERIOR HORN NEURONES IN MOTOR NEURONE DISEASE DEFINED BY IMMUNOCYTOCHEMICAL LOCATIONS OF UBIQUITIN" NEUROSCI LETT. 94. 203-210 (1988)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] NAKANO I,SHIBATA T,UESAKA Y :"ON THE POSSIBILITY OF AUTOLYSOSOMAL PROCESSING OF SKEIN-LIKE INCLUSIONS-ELECTRONMICROSCOPIC OBSERVATION IN A CASE OF AMYOTROPHIC LATERAL SCLEROSIS" J NEUROSCI. 120. 54-59 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] 中野今治: "ALSと痴呆" 神経進歩. 40. 63-74 (1996)

    • Related Report
      1995 Annual Research Report
  • [Publications] 柳下章、今野今治、小田雅也: "筋萎縮性側索硬化症の脳のMRI" 神経進歩. 40. 53-63 (1996)

    • Related Report
      1995 Annual Research Report
  • [Publications] Yagishita A, Oda M, Nakano I: "Location of the pyramidal tract" Raiology. 194. 290 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] Yagishita A, Nakano I, et al: "Localization of the corticospinal tract in the internal capsule on MR imaging" Radiology. 191. 455-460 (1994)

    • Related Report
      1995 Annual Research Report
  • [Publications] Kato S, Oda M, et al: "Motor neuron disease with involvement of the pallido-luysio-nigral system and mesencephalic tegmentum" Clin Neuropathol. 14. 241-244 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] Kato S, Oda M, et al: "Decrease of medullary catecholaminergic neurons in multiple system atrophy and Parkinson's disease and their preservation in amyotrophic lateral sclerosis" J Neurol Sci. 132. 216-221 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] 中野今治: "運動ニューロンの変性疾患(内科学、上田英雄ほか編)" 朝倉書店, 1896-1901 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] Nakano I, Shibata T, et al.: "On the possibility of autolysosomal processing of skeinlike in clusions in amyotrophic lateral sclerosis-Electron microscopic observation-. In : ALS-from Charcot to the present and into the future, ed by FC Rose" Smith-Gordon, 173-186 (1994)

    • Related Report
      1995 Annual Research Report
  • [Publications] 中野今治: "筋萎縮性側索硬化症--下位運動ニューロン病理の最近の知見" 医学のあゆみ. 168. 125-130 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] 中野今治: "Bunina小体と神経症状" Dementia. 8. 34-41 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] Yagishita A,Nakano I,Oda M,Hirano A: "Localization of the corticospinal tract in the internal capsule on MR imaging." Radiology. 191. 455-460 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] Yamazaki M,Nakano I,Imazu O,Kaieda R,et al: "Astrocytic straight tubules in the brain of a patient with Pick's disease--Immunocytochemical and electron microscopic study" Acta Neuropathol. 88. 587-591 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] 中野今治: "痴呆を伴う筋萎縮性側索硬化症" モダンフィジシャン. 14. 823-826 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] 柳下章、中野今治: "皮質脊髄路と筋萎縮性側索硬化症-病理とMRI。" 病理と臨床. 12. 843-851 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] Nakano I.Shibata T,Kuroda M,et al: "ALS-from Charcot to the present and into the future.(分担執筆)" Smith-Gordon, 14 (1994)

    • Related Report
      1994 Annual Research Report

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Published: 1994-04-01   Modified: 2016-04-21  

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