SwePub - search: WFRF:(Amandius Ebba)

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1.	Nordström, Eva, et al. (author) ABBV-0805, a novel antibody selective for soluble aggregated alpha-synuclein, prolongs lifespan and prevents buildup of alpha-synuclein pathology in mouse models of Parkinson's disease 2021 In: Neurobiology of Disease. - : Elsevier. - 0969-9961 .- 1095-953X. ; 161 Journal article (peer-reviewed)abstract A growing body of evidence suggests that aggregated alpha-synuclein, the major constituent of Lewy bodies, plays a key role in the pathogenesis of Parkinson's disease and related alpha-synucleinopathies. Immunotherapies, both active and passive, against alpha-synuclein have been developed and are promising novel treatment strategies for such disorders. Here, we report on the humanization and pharmacological characteristics of ABBV-0805, a monoclonal antibody that exhibits a high selectivity for human aggregated alpha-synuclein and very low affinity for monomers. ABBV-0805 binds to a broad spectrum of soluble aggregated alpha-synuclein, including small and large aggregates of different conformations. Binding of ABBV-0805 to pathological alpha-synuclein was demonstrated in Lewy body-positive post mortem brains of Parkinson's disease patients. The functional potency of ABBV-0805 was demonstrated in several cellular assays, including Fc gamma-receptor mediated uptake of soluble aggregated alpha-synuclein in microglia and inhibition of neurotoxicity in primary neurons. In vivo, the murine version of ABBV-0805 (mAb47) displayed significant dose dependent decrease of alpha-synuclein aggregates in brain in several mouse models, both in prophylactic and therapeutic settings. In addition, mAb47 treatment of alpha-synuclein transgenic mice resulted in a significantly prolonged survival. ABBV-0805 selectively targets soluble toxic alpha-synuclein aggregates with a picomolar affinity and demonstrates excellent in vivo efficacy. Based on the strong preclinical findings described herein, ABBV-0805 has been progressed into clinical development as a potential disease-modifying treatment for Parkinson's disease.

Nordström, Eva, et al. (author)
ABBV-0805, a novel antibody selective for soluble aggregated alpha-synuclein, prolongs lifespan and prevents buildup of alpha-synuclein pathology in mouse models of Parkinson's disease
2021
In: Neurobiology of Disease. - : Elsevier. - 0969-9961 .- 1095-953X. ; 161
Journal article (peer-reviewed)abstract
- A growing body of evidence suggests that aggregated alpha-synuclein, the major constituent of Lewy bodies, plays a key role in the pathogenesis of Parkinson's disease and related alpha-synucleinopathies. Immunotherapies, both active and passive, against alpha-synuclein have been developed and are promising novel treatment strategies for such disorders. Here, we report on the humanization and pharmacological characteristics of ABBV-0805, a monoclonal antibody that exhibits a high selectivity for human aggregated alpha-synuclein and very low affinity for monomers. ABBV-0805 binds to a broad spectrum of soluble aggregated alpha-synuclein, including small and large aggregates of different conformations. Binding of ABBV-0805 to pathological alpha-synuclein was demonstrated in Lewy body-positive post mortem brains of Parkinson's disease patients. The functional potency of ABBV-0805 was demonstrated in several cellular assays, including Fc gamma-receptor mediated uptake of soluble aggregated alpha-synuclein in microglia and inhibition of neurotoxicity in primary neurons. In vivo, the murine version of ABBV-0805 (mAb47) displayed significant dose dependent decrease of alpha-synuclein aggregates in brain in several mouse models, both in prophylactic and therapeutic settings. In addition, mAb47 treatment of alpha-synuclein transgenic mice resulted in a significantly prolonged survival. ABBV-0805 selectively targets soluble toxic alpha-synuclein aggregates with a picomolar affinity and demonstrates excellent in vivo efficacy. Based on the strong preclinical findings described herein, ABBV-0805 has been progressed into clinical development as a potential disease-modifying treatment for Parkinson's disease.

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