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Volume 11
Issue 7
10.3390/v11070597
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Brief Report

Coxsackievirus-B4 Infection of Human Primary Pancreatic Ductal Cell Cultures Results in Impairment of Differentiation into Insulin-Producing Cells

by
Antoine Bertin
1,
Famara Sane
1,
Valery Gmyr
2,
Delphine Lobert
1,
Arthur Dechaumes
1,
Julie Kerr-Conte
2,
François Pattou
2 and
Didier Hober
1,*
1
University of Lille, Faculté de Médecine, CHU Lille, Laboratoire de Virologie EA3610, F-59000 Lille, France
2
University of Lille, INSERM, CHU Lille, EGID, UMR 1190- Translational Research in Diabetes, F-59000 Lille, France
*
Author to whom correspondence should be addressed.
Viruses 2019, 11(7), 597; https://doi.org/10.3390/v11070597
Submission received: 11 April 2019 / Revised: 11 June 2019 / Accepted: 27 June 2019 / Published: 2 July 2019
(This article belongs to the Special Issue Human Picornaviruses)
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Abstract

Coxsackievirus-B4 (CV-B4) E2 can persist in the pancreatic ductal-like cells (Panc-1 cell line), which results in an impaired differentiation of these cells into islet-like cell aggregates (ICA). In this study, primary pancreatic ductal cells obtained as a by-product of islet isolation from the pancreas of seven brain-dead adults were inoculated with CV-B4 E2, followed-up for 29 days, and the impact was investigated. Viral titers in culture supernatants were analyzed throughout the culture. Intracellular viral RNA was detected by RT-PCR. Levels of ductal cell marker CK19 mRNA and of insulin mRNA were evaluated by qRT-PCR. The concentration of c-peptide in supernatants was determined by ELISA. Ductal cells exposed to trypsin and serum-free medium formed ICA and resulted in an increased insulin secretion. Ductal cells from five brain-dead donors were severely damaged by CV-B4 E2, whereas the virus persisted in cultures of cells obtained from the other two. The ICAs whose formation was induced on day 14 post-inoculation were scarce and appeared tiny in infected cultures. Also, insulin mRNA expression and c-peptide levels were strongly reduced compared to the controls. In conclusion, CV-B4 E2 lysed human primary pancreatic ductal cells or persisted in these cells, which resulted in the impairment of differentiation into insulin-producing cells.
Keywords: enterovirus; in vitro; c-peptide; insulin mRNA; RT-PCR enterovirus; in vitro; c-peptide; insulin mRNA; RT-PCR

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MDPI and ACS Style

Bertin, A.; Sane, F.; Gmyr, V.; Lobert, D.; Dechaumes, A.; Kerr-Conte, J.; Pattou, F.; Hober, D. Coxsackievirus-B4 Infection of Human Primary Pancreatic Ductal Cell Cultures Results in Impairment of Differentiation into Insulin-Producing Cells. Viruses 2019, 11, 597. https://doi.org/10.3390/v11070597

AMA Style

Bertin A, Sane F, Gmyr V, Lobert D, Dechaumes A, Kerr-Conte J, Pattou F, Hober D. Coxsackievirus-B4 Infection of Human Primary Pancreatic Ductal Cell Cultures Results in Impairment of Differentiation into Insulin-Producing Cells. Viruses. 2019; 11(7):597. https://doi.org/10.3390/v11070597

Chicago/Turabian Style

Bertin, Antoine, Famara Sane, Valery Gmyr, Delphine Lobert, Arthur Dechaumes, Julie Kerr-Conte, François Pattou, and Didier Hober. 2019. "Coxsackievirus-B4 Infection of Human Primary Pancreatic Ductal Cell Cultures Results in Impairment of Differentiation into Insulin-Producing Cells" Viruses 11, no. 7: 597. https://doi.org/10.3390/v11070597

APA Style

Bertin, A., Sane, F., Gmyr, V., Lobert, D., Dechaumes, A., Kerr-Conte, J., Pattou, F., & Hober, D. (2019). Coxsackievirus-B4 Infection of Human Primary Pancreatic Ductal Cell Cultures Results in Impairment of Differentiation into Insulin-Producing Cells. Viruses, 11(7), 597. https://doi.org/10.3390/v11070597

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