2021
DOI: 10.1016/j.heliyon.2021.e07456
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Doxorubicin induces dysregulation of AMPA receptor and impairs hippocampal synaptic plasticity leading to learning and memory deficits

Abstract: Doxorubicin is associated with "chemobrain," a long-term cancer related cognitive impairment. Doxorubicin treatment results in hippocampus-dependent learning and memory deficits. Impairment in hippocampal long-term potentiation is accompanied with reduced functionality of glutamate subtype AMPA receptor. Dysregulation of CaMKII, BDNF, ERK, and AKT protein signaling leading to learning and memory impairment.

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Cited by 12 publications
(16 citation statements)
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“…Both PL treatment and TAC treatment increased mRNA levels of Gria2, and TAC/PL had no effect on expression (Figure 8C). While we observed no changes in Gria1, increased levels of GluA2 have been reported to be associated with memory deficits after doxorubicin treatment [62]. In fact, GluA2 knockout mice displayed an increase in LTP [63], which agrees with our results.…”
Section: Discussionsupporting
confidence: 92%
“…Both PL treatment and TAC treatment increased mRNA levels of Gria2, and TAC/PL had no effect on expression (Figure 8C). While we observed no changes in Gria1, increased levels of GluA2 have been reported to be associated with memory deficits after doxorubicin treatment [62]. In fact, GluA2 knockout mice displayed an increase in LTP [63], which agrees with our results.…”
Section: Discussionsupporting
confidence: 92%
“…A literature review indicates that chemotherapeutic drugs can cause various adverse effects, including cardio‐vessel damage, hepatic toxicity, mucosal injury, inflammation, apoptosis, myotoxicity, dermal toxicity, nephrotoxicity, and cognitive impairment 16,17 . Our previous studies also confirmed the neurotoxicity associated with using the chemotherapeutic Doxorubicin 18,19 . However, there are very few reports on the direct effect of Doxorubicin and Cyclophosphamide on dopaminergic neurons currently.…”
Section: Introductionsupporting
confidence: 65%
“…16 , 17 Our previous studies also confirmed the neurotoxicity associated with using the chemotherapeutic Doxorubicin. 18 , 19 However, there are very few reports on the direct effect of Doxorubicin and Cyclophosphamide on dopaminergic neurons currently. Thus, the current research focused on assessing the effect of Doxorubicin and cyclophosphamide on dopaminergic neurons.…”
Section: Introductionmentioning
confidence: 99%
“…With regard to neuronal stimulation and memory formation, proteins facilitate signal transduction from receptors to activate different protein kinases [ 109 , 110 ]. These signaling pathways regulate the gene expression and protein synthesis required to modify ion channel properties and ion channel density in the synapses [ 111 , 112 , 113 ]. The expression of several proteins in the hippocampus is altered during hippocampal-dependent tasks, and these proteins include brain-derived neurotrophic factor (BDNF), calcium calmodulin dependent kinase II (CaMKII), extracellular regulated kinase ½ (ERK1/2), cAMP-response element binding protein (CREB), α-amino-3-hydroxy-5-methyl-4-isoxazole propionic acid (AMPA) receptor, and N-methyl- d -aspartate (NMDA) receptor [ 114 , 115 , 116 , 117 ].…”
Section: Effect Of Prenatal Alcohol Exposure On Protein Expression An...mentioning
confidence: 99%
“…Similarly, a reduction in CaMKII activity induces cognitive dysfunction. In addition, CaMKII activation can phosphorylate the AMPA-GluR1 subunit at the Ser 831 residue and lead to the mobilization of the GluR1 subunit to the synaptic membrane [ 113 ]. CaMKII also plays a critical role in LTP induction and maintenance [ 145 ].…”
Section: Effect Of Prenatal Alcohol Exposure On Protein Expression An...mentioning
confidence: 99%