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  • Region-Specific Response of Astrocytes to Prion Infection
    UMB Dataset

    Authors
    Natallia Makarava
    Jennifer Chen-Yu Chang
    Rajesh Kushwaha
    Ilia V. Baskakov
    Description

    Chronic neuroinflammation is a common pathological hallmark of neurodegenerative diseases such as Alzheimer’s, Parkinson’s, ALS, and prion disorders. Both reactive microgliosis and astrogliosis have been identified as having a role in the neuroinflammatory process. Studies of prion diseases of animals and humans have demonstrated activation and proliferation of microglia at the very early subclinical stages. Less is known about the role of reactive astrocytes. This research investigated the changes in normal functions of astrocytes over the course of chronic neuroinflammation including their region-specific responses in the brain. Studies of brain tissue of mice infected with 22L mouse-adapted prion strain include histological, immunofluorescence, and qRT-PCR. Prion deposition and reactive microgliosis and astrogliosis were examined across regions of the whole brain with particular focus on the thalamus and hippocampus.

    Subject
    Neurodegenerative Diseases
    Prion Diseases
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  • Tip60- and Sirtuin 2-Regulated MARCKS Acetylation and Phosphorylation Are Required for Diabetic Embryopathy
    UMB Dataset

    Authors
    Penghua Yang
    Cheng Xu
    E. Albert Reece
    Xi Chen
    5 more author(s)...
    Description

    A high glucose level associated with maternal diabetes has been identified as a risk factor for fetal neural tube defects (NTD). The failure to successfully complete the complex neurulation process is possibly related to the loss of protection for cellular homeostasis resulting in organelle stress. Mitochondrial dysfunction and endoplasmic reticulum stress in the developing endothelium have been identified as significant components in diabetic embryopathy. Myristoylated Alanine-Rich C Kinase Substrate (MARCKS) is a critical protein involved in fetal neural development. This study investigated the regulation and biological activity of MARCKS and its role in protecting neuroepithelial cell organelles during neurulation. Furthermore, the effects of the acetylation/phosphorylation/deacetylation of MARCKs by Tip60 and sirtuin 2 were examined with respect to the protein’s protective functionality. The dataset includes immunoblot/immunofluorescent/electronmicroscopy images and graphs.

    Subject
    Neurulation
    Pregnancy in Diabetics
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  • Cocaine-induced neuron subtype mitochondrial dynamics through Egr3 transcriptional regulation
    UMB Dataset

    Authors
    Shannon L. Cole
    Ramesh Chandra
    Maya Harris
    Ishan Patel
    8 more author(s)...
    Description

    This dataset was generated to investigate long-lasting neurobiological adaptations to drugs of abuse. This dataset specifically supported the study of cocaine exposure impact of mitochondrial dynamics and morphology through early growth response factor 3 (Egr3) transcriptional regulation of mitochondria-related nuclear gene transcripts. Mitochondria-related nuclear genes were assayed following contingent or non-contingent cocaine exposure in rodents and were also examined in postmortem nucleus accumbens (NAc) of cocaine dependents.

    Supplemental data in tabular forms include human demographics, DNA sequencing primers, mitochondrial statistical analysis, and gene regulations.

    The following data elements were observed over a period of 7-10 days: Egr3 change in response to cocaine vs saline between rats and human postmortem issue; Egr3 binding changes in various genes promoting mitochondria in response to cocaine vs saline between rats and human postmortem issue; mRNA change in response to cocaine and saline between rats and human postmortem issue and between cocaine addict and control group; mRNA change in response to cocaine and saline between rats and human dead issue; Ribosome (the RNA binding proteins) associated mRNA changes in dopamine receptor-1 containing medium spiny neurons (D1 MSNs) and D2 MSNs in response to cocaine and saline between cocaine addict and control group.

    Subject
    Cocaine/pharmacology
    Early Growth Response Protein 3
    Mitochondrial Dynamics
    Neurons
    Transcription, Genetic/drug effects
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    Unrestricted access
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