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Latent HSV Infection can alter Neuronal Gene Expression and cause disease

Discussion in 'Other Health News and Research' started by pattismith, Mar 5, 2018.

  1. pattismith

    pattismith Senior Member

    Latent Herpes Simplex Virus Infection of Sensory Neurons Alters Neuronal Gene Expression


    The persistence of herpes simplex virus (HSV) and the diseases that it causes in the human population can be attributed to the maintenance of a latent infection within neurons in sensory ganglia. Little is known about the effects of latent infection on the host neuron. We have addressed the question of whether latent HSV infection affects neuronal gene expression by using microarray transcript profiling of host gene expression in ganglia from latently infected versus mock-infected mouse trigeminal ganglia. 33P-labeled cDNA probes from pooled ganglia harvested at 30 days postinfection or post-mock infection were hybridized to nylon arrays printed with 2,556 mouse genes. Signal intensities were acquired by phosphorimager. Mean intensities (n = 4 replicates in each of three independent experiments) of signals from mock-infected versus latently infected ganglia were compared by using a variant of Student's t test.

    We identified significant changes in the expression of mouse neuronal genes, including several with roles in gene expression, such as the Clk2 gene, and neurotransmission, such as genes encoding potassium voltage-gated channels and a muscarinic acetylcholine receptor.

    We confirmed the neuronal localization of some of these transcripts by using in situ hybridization. To validate the microarray results, we performed real-time reverse transcriptase PCR analyses for a selection of the genes.

    These studies demonstrate that latent HSV infection can alter neuronal gene expression and might provide a new mechanism for how persistent viral infection can cause chronic disease.
    alkt, Dan_USAAZ, lauluce and 5 others like this.
  2. lauluce

    lauluce as long as you manage to stay alive, there's hope

    well, this could explain why I completely lost sensitivity to touch in the exact place were I developed hsv ulcers 20 years ago

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