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Ex Vivo Infection of Murine Epidermis with Herpes Simplex Virus Type 1
11:56

Ex Vivo Infection of Murine Epidermis with Herpes Simplex Virus Type 1

Published on: August 24, 2015

[Human herpesvirus 6]

József Ongrádi1, Valéria Kövesdi, G Péter Medveczky

  • 1Semmelweis Egyetem, Altalános Orvostudományi Kar, Közegészségtani Intézet, Budapest, Nagyvárad tér 4. 1089. ongjos@hotmail.com

Orvosi Hetilap
|March 23, 2010
PubMed

Insights

Human herpesvirus 6 (HHV-6) infects young children and establishes lifelong latency. Reactivation in transplant recipients can be fatal, and HHV-6 is linked to chronic diseases and cancers.

Area of Science:

  • Virology
  • Immunology

Context:

  • Human herpesvirus 6 (HHV-6), discovered in 1986, is the most ancient human herpesvirus.
  • Variant B commonly infects young children, causing exanthema subitum and establishing lifelong latency.
  • Reactivation of HHV-6, particularly in immunosuppressed individuals like transplant recipients, can lead to severe or fatal complications.

Purpose:

  • To review the molecular characteristics, pathogenesis, and clinical implications of Human Herpesvirus 6 variants.
  • To highlight the role of HHV-6 as a cofactor in various diseases and its interaction with other infections.
  • To discuss diagnostic challenges and therapeutic options for HHV-6 infections.

Summary:

  • HHV-6 infects CD4+ cells, establishes lifelong latency with salivary shedding, and reactivates under immunosuppression.
  • HHV-6 is implicated as a cofactor in multiple sclerosis, chronic fatigue syndrome, lymphomas, and facilitates HIV and HPV progression.
  • While serological differentiation is unreliable, PCR can distinguish variants. Antiviral drugs like ganciclovir are used for treatment and prophylaxis.

Impact:

  • Understanding HHV-6 pathogenesis is crucial for managing post-transplant complications and associated chronic diseases.
  • Accurate diagnosis through PCR is essential for effective treatment and chemoprophylaxis of severe HHV-6 manifestations.
  • Further research into HHV-6 variant A's specific role in CD4+ cells and disease progression is warranted.

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