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Shinohara M, Hirokawa J, Shimodaira A, Tashiro Y, Suzuki K, Gheni G, Fukumori A, Matsubara T, Morishima M, Saito Y, Murayama S, Sato N. ELISA Evaluation of Tau Accumulation in the Brains of Patients with Alzheimer Disease. J Neuropathol Exp Neurol 2021; 80:652-662. [PMID: 34283221 DOI: 10.1093/jnen/nlab047] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Despite the routine use of sandwich enzyme-linked immunosorbent assays (ELISAs) for quantifying tau levels in CSF and plasma, tau accumulations in the brains of patients with Alzheimer disease (AD) have rarely been evaluated by this method. Thus, by introducing several tau ELISAs that target different epitopes, we evaluated accumulated tau levels in postmortem brains depending on disease stage, brain areas, and other AD-related changes. Notably, tau levels in insoluble fraction determined by each ELISAs differ depending on the epitopes of antibodies: non-AD control samples yield relatively high signals when an antibody against the N-terminal region of tau is used. On the other hand, ELISAs combining antibodies against the later-middle to C-terminal regions of tau produced substantially increased signals from AD samples, compared to those from non-AD controls. Such ELISAs better distinguish AD and non-AD controls, and the results are more closely associated with Braak neurofibrillary tangles stage, Aβ accumulation, and glial markers. Moreover, these ELISAs can reflect the pattern of tau spread across brain regions. In conclusion, Tau ELISAs that combine antibodies against the later-middle to C-terminal regions of tau can better reflect neuropathological tau accumulation, which would enable to evaluate tau accumulation in the brain at a biochemical level.
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Affiliation(s)
- Mitsuru Shinohara
- From the Department of Aging Neurobiology, Center for Development of Advanced Medicine for Dementia, National Center for Geriatrics and Gerontology, Obu, Aichi, Japan (MS, JH, AS, YT, KS, GG, AF, NS).,Department of Aging Neurobiology, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan (MS, AF, NS).,Department of Pharmacotherapeutics II, Osaka University of Pharmaceutical Sciences, Takatsuki, Osaka, Japan (AF).,Department of Neuropathology (The Brain Bank for Aging Research), Tokyo Metropolitan Geriatric Hospital and Institute of Gerontology, Itabashi, Tokyo, Japan (TM, MM, YS, SM).,Brain Bank for Neurodevelopmental, Neurological and Psychiatric Disorders, United Graduate School of Child Development, Osaka University, Suita, Osaka, Japan (SM)
| | - Junko Hirokawa
- From the Department of Aging Neurobiology, Center for Development of Advanced Medicine for Dementia, National Center for Geriatrics and Gerontology, Obu, Aichi, Japan (MS, JH, AS, YT, KS, GG, AF, NS).,Department of Aging Neurobiology, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan (MS, AF, NS).,Department of Pharmacotherapeutics II, Osaka University of Pharmaceutical Sciences, Takatsuki, Osaka, Japan (AF).,Department of Neuropathology (The Brain Bank for Aging Research), Tokyo Metropolitan Geriatric Hospital and Institute of Gerontology, Itabashi, Tokyo, Japan (TM, MM, YS, SM).,Brain Bank for Neurodevelopmental, Neurological and Psychiatric Disorders, United Graduate School of Child Development, Osaka University, Suita, Osaka, Japan (SM)
| | - Akemi Shimodaira
- From the Department of Aging Neurobiology, Center for Development of Advanced Medicine for Dementia, National Center for Geriatrics and Gerontology, Obu, Aichi, Japan (MS, JH, AS, YT, KS, GG, AF, NS).,Department of Aging Neurobiology, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan (MS, AF, NS).,Department of Pharmacotherapeutics II, Osaka University of Pharmaceutical Sciences, Takatsuki, Osaka, Japan (AF).,Department of Neuropathology (The Brain Bank for Aging Research), Tokyo Metropolitan Geriatric Hospital and Institute of Gerontology, Itabashi, Tokyo, Japan (TM, MM, YS, SM).,Brain Bank for Neurodevelopmental, Neurological and Psychiatric Disorders, United Graduate School of Child Development, Osaka University, Suita, Osaka, Japan (SM)
| | - Yoshitaka Tashiro
- From the Department of Aging Neurobiology, Center for Development of Advanced Medicine for Dementia, National Center for Geriatrics and Gerontology, Obu, Aichi, Japan (MS, JH, AS, YT, KS, GG, AF, NS).,Department of Aging Neurobiology, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan (MS, AF, NS).,Department of Pharmacotherapeutics II, Osaka University of Pharmaceutical Sciences, Takatsuki, Osaka, Japan (AF).,Department of Neuropathology (The Brain Bank for Aging Research), Tokyo Metropolitan Geriatric Hospital and Institute of Gerontology, Itabashi, Tokyo, Japan (TM, MM, YS, SM).,Brain Bank for Neurodevelopmental, Neurological and Psychiatric Disorders, United Graduate School of Child Development, Osaka University, Suita, Osaka, Japan (SM)
| | - Kaoru Suzuki
- From the Department of Aging Neurobiology, Center for Development of Advanced Medicine for Dementia, National Center for Geriatrics and Gerontology, Obu, Aichi, Japan (MS, JH, AS, YT, KS, GG, AF, NS).,Department of Aging Neurobiology, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan (MS, AF, NS).,Department of Pharmacotherapeutics II, Osaka University of Pharmaceutical Sciences, Takatsuki, Osaka, Japan (AF).,Department of Neuropathology (The Brain Bank for Aging Research), Tokyo Metropolitan Geriatric Hospital and Institute of Gerontology, Itabashi, Tokyo, Japan (TM, MM, YS, SM).,Brain Bank for Neurodevelopmental, Neurological and Psychiatric Disorders, United Graduate School of Child Development, Osaka University, Suita, Osaka, Japan (SM)
| | - Ghupurjan Gheni
- From the Department of Aging Neurobiology, Center for Development of Advanced Medicine for Dementia, National Center for Geriatrics and Gerontology, Obu, Aichi, Japan (MS, JH, AS, YT, KS, GG, AF, NS).,Department of Aging Neurobiology, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan (MS, AF, NS).,Department of Pharmacotherapeutics II, Osaka University of Pharmaceutical Sciences, Takatsuki, Osaka, Japan (AF).,Department of Neuropathology (The Brain Bank for Aging Research), Tokyo Metropolitan Geriatric Hospital and Institute of Gerontology, Itabashi, Tokyo, Japan (TM, MM, YS, SM).,Brain Bank for Neurodevelopmental, Neurological and Psychiatric Disorders, United Graduate School of Child Development, Osaka University, Suita, Osaka, Japan (SM)
| | - Akio Fukumori
- From the Department of Aging Neurobiology, Center for Development of Advanced Medicine for Dementia, National Center for Geriatrics and Gerontology, Obu, Aichi, Japan (MS, JH, AS, YT, KS, GG, AF, NS).,Department of Aging Neurobiology, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan (MS, AF, NS).,Department of Pharmacotherapeutics II, Osaka University of Pharmaceutical Sciences, Takatsuki, Osaka, Japan (AF).,Department of Neuropathology (The Brain Bank for Aging Research), Tokyo Metropolitan Geriatric Hospital and Institute of Gerontology, Itabashi, Tokyo, Japan (TM, MM, YS, SM).,Brain Bank for Neurodevelopmental, Neurological and Psychiatric Disorders, United Graduate School of Child Development, Osaka University, Suita, Osaka, Japan (SM)
| | - Tomoyasu Matsubara
- From the Department of Aging Neurobiology, Center for Development of Advanced Medicine for Dementia, National Center for Geriatrics and Gerontology, Obu, Aichi, Japan (MS, JH, AS, YT, KS, GG, AF, NS).,Department of Aging Neurobiology, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan (MS, AF, NS).,Department of Pharmacotherapeutics II, Osaka University of Pharmaceutical Sciences, Takatsuki, Osaka, Japan (AF).,Department of Neuropathology (The Brain Bank for Aging Research), Tokyo Metropolitan Geriatric Hospital and Institute of Gerontology, Itabashi, Tokyo, Japan (TM, MM, YS, SM).,Brain Bank for Neurodevelopmental, Neurological and Psychiatric Disorders, United Graduate School of Child Development, Osaka University, Suita, Osaka, Japan (SM)
| | - Maho Morishima
- From the Department of Aging Neurobiology, Center for Development of Advanced Medicine for Dementia, National Center for Geriatrics and Gerontology, Obu, Aichi, Japan (MS, JH, AS, YT, KS, GG, AF, NS).,Department of Aging Neurobiology, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan (MS, AF, NS).,Department of Pharmacotherapeutics II, Osaka University of Pharmaceutical Sciences, Takatsuki, Osaka, Japan (AF).,Department of Neuropathology (The Brain Bank for Aging Research), Tokyo Metropolitan Geriatric Hospital and Institute of Gerontology, Itabashi, Tokyo, Japan (TM, MM, YS, SM).,Brain Bank for Neurodevelopmental, Neurological and Psychiatric Disorders, United Graduate School of Child Development, Osaka University, Suita, Osaka, Japan (SM)
| | - Yuko Saito
- From the Department of Aging Neurobiology, Center for Development of Advanced Medicine for Dementia, National Center for Geriatrics and Gerontology, Obu, Aichi, Japan (MS, JH, AS, YT, KS, GG, AF, NS).,Department of Aging Neurobiology, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan (MS, AF, NS).,Department of Pharmacotherapeutics II, Osaka University of Pharmaceutical Sciences, Takatsuki, Osaka, Japan (AF).,Department of Neuropathology (The Brain Bank for Aging Research), Tokyo Metropolitan Geriatric Hospital and Institute of Gerontology, Itabashi, Tokyo, Japan (TM, MM, YS, SM).,Brain Bank for Neurodevelopmental, Neurological and Psychiatric Disorders, United Graduate School of Child Development, Osaka University, Suita, Osaka, Japan (SM)
| | - Shigeo Murayama
- From the Department of Aging Neurobiology, Center for Development of Advanced Medicine for Dementia, National Center for Geriatrics and Gerontology, Obu, Aichi, Japan (MS, JH, AS, YT, KS, GG, AF, NS).,Department of Aging Neurobiology, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan (MS, AF, NS).,Department of Pharmacotherapeutics II, Osaka University of Pharmaceutical Sciences, Takatsuki, Osaka, Japan (AF).,Department of Neuropathology (The Brain Bank for Aging Research), Tokyo Metropolitan Geriatric Hospital and Institute of Gerontology, Itabashi, Tokyo, Japan (TM, MM, YS, SM).,Brain Bank for Neurodevelopmental, Neurological and Psychiatric Disorders, United Graduate School of Child Development, Osaka University, Suita, Osaka, Japan (SM)
| | - Naoyuki Sato
- From the Department of Aging Neurobiology, Center for Development of Advanced Medicine for Dementia, National Center for Geriatrics and Gerontology, Obu, Aichi, Japan (MS, JH, AS, YT, KS, GG, AF, NS).,Department of Aging Neurobiology, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan (MS, AF, NS).,Department of Pharmacotherapeutics II, Osaka University of Pharmaceutical Sciences, Takatsuki, Osaka, Japan (AF).,Department of Neuropathology (The Brain Bank for Aging Research), Tokyo Metropolitan Geriatric Hospital and Institute of Gerontology, Itabashi, Tokyo, Japan (TM, MM, YS, SM).,Brain Bank for Neurodevelopmental, Neurological and Psychiatric Disorders, United Graduate School of Child Development, Osaka University, Suita, Osaka, Japan (SM)
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