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Temperature dependence in human Rhinovirus infection of human MRC-5
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Biology Education Centre.
2019 (English)Independent thesis Advanced level (professional degree), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

Temperature has been known to be an important factor for in vitro studies where human cell cultures are infected with HRV (human Rhinovirus). The mechanisms behind the temperature effect on the struggle between virulence and cellular defense, are still largely unknown and may be a crucial part in finding a treatment to the common cold. In this study we focused on a few cellular key elements in this struggle and observed behavior changes in regards to the pre-infection growth temperature and the temperature during the viral infection.

Past studies have focused mainly on the temperature post inoculation, but here we also wanted to correlate virulence to the growth temperatures preceding the viral infection. We found that the growth temperature of the cell did indeed affect its response to the HRV. If the cells had been growing in an optimal body temperature of 37°C before getting virally infected at 33°C, the viability of the cells did decrease in comparison to cells that had been growing in 33°C from before the viral infection.

We could also observe a significant temperature dependence regarding IL-8 release upon HRV inoculation. HRV strive to block induction of inflammatory cytokines such as interferons and IL-1. It may be that impaired IL-8 release at lower temperatures will prevent important danger signals alerting the immune system when cytokine signaling is otherwise hampered by viral intervention.

Place, publisher, year, edition, pages
2019. , p. 24
Series
UPTEC X ; 19 035
Keywords [en]
MRC-5, HRV, Western Blot, ELISA, IL8, Common Cold
National Category
Cell Biology
Identifiers
URN: urn:nbn:se:uu:diva-392331OAI: oai:DiVA.org:uu-392331DiVA, id: diva2:1348046
Educational program
Molecular Biotechnology Engineering Programme
Supervisors
Examiners
Available from: 2019-09-12 Created: 2019-09-03 Last updated: 2019-09-12Bibliographically approved

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CiteExportLink to record
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