Title : A role for astrocyte-derived amyloid β peptides in the degeneration of neurons in an animal model of temporal lobe epilepsy.

Pub. Date : 2019 Jan

PMID : 29665128






7 Functional Relationships(s)
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1 Thus, we seek to establish what role Abeta plays in kainic acid-induced toxicity using in vivo and in vitro paradigms. Kainic Acid amyloid beta precursor protein Rattus norvegicus
2 Our results show that systemic injection of kainic acid to adult rats triggers seizures, gliosis and loss of hippocampal neurons, along with increased levels/processing of amyloid precursor protein (APP), resulting in the enhanced production of Abeta-related peptides. Kainic Acid amyloid beta precursor protein Rattus norvegicus
3 Our results show that systemic injection of kainic acid to adult rats triggers seizures, gliosis and loss of hippocampal neurons, along with increased levels/processing of amyloid precursor protein (APP), resulting in the enhanced production of Abeta-related peptides. Kainic Acid amyloid beta precursor protein Rattus norvegicus
4 The changes in APP levels/processing were evident primarily in activated astrocytes, implying a role for astrocytic Abeta in kainic acid-induced toxicity. Kainic Acid amyloid beta precursor protein Rattus norvegicus
5 Accordingly, we showed that treating rat primary cultured astrocytes with kainic acid can lead to increased Abeta production/secretion without any compromise in cell viability. Kainic Acid amyloid beta precursor protein Rattus norvegicus
6 Additionally, we revealed that kainic acid reduces neuronal viability more in neuronal/astrocyte co-cultures than in pure neuronal culture, and this is attenuated by precluding Abeta production. Kainic Acid amyloid beta precursor protein Rattus norvegicus
7 Collectively, these results indicate that increased production/secretion of Abeta-related peptides from activated astrocytes can contribute to neurotoxicity in kainic acid-treated rats. Kainic Acid amyloid beta precursor protein Rattus norvegicus