Genetically predetermined limitation in HaCaT cells that affects their ability to serve as an experimental model of psoriasis

Genetically predetermined limitation in HaCaT cells that affects their ability to serve as an... Proinflammatory cytokines TNF, IFNG, and IL17 play an important role in eruption of psoriasis. The activation of epidermal keratinocytes with the named cytokines alters their terminal differentiation program and causes their hyperproliferation in the diseased skin. HaCaT cells, which are immortalized human keratinocytes, are often used as a cellular model of psoriasis. The aim of this study was to evaluate changes in gene expression and the proliferation rates in cultured HaCaT cells treated with TNF, IFNG, and IL17. We found that HaCaT cells decrease their proliferation rate in response to either IL17 or a combination TNF and IFNG. The analysis of microarray data discovered a group of 12 genes, which were downregulated in HaCaT after treatments with the named cytokines and upregulated in psoriatic lesional skin. Eight genes were important for DNA replication and they also contributed to two larger networks that regulated cell progression through the cell cycle. We conclude that HaCaT cells have a sufficient limitation as a cellular model of psoriasis due to their treatment with proinflammatory cytokines, namely TNF, IFNG, and IL17 does not increase their proliferation rate. Thus, the studies of psoriasis based on HaCaT cells as an experimental model shall take in account this important phenomenon. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Genetics Springer Journals

Genetically predetermined limitation in HaCaT cells that affects their ability to serve as an experimental model of psoriasis

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Publisher
Pleiades Publishing
Copyright
Copyright © 2014 by Pleiades Publishing, Inc.
Subject
Biomedicine; Human Genetics; Animal Genetics and Genomics; Microbial Genetics and Genomics
ISSN
1022-7954
eISSN
1608-3369
D.O.I.
10.1134/S1022795414100123
Publisher site
See Article on Publisher Site

Abstract

Proinflammatory cytokines TNF, IFNG, and IL17 play an important role in eruption of psoriasis. The activation of epidermal keratinocytes with the named cytokines alters their terminal differentiation program and causes their hyperproliferation in the diseased skin. HaCaT cells, which are immortalized human keratinocytes, are often used as a cellular model of psoriasis. The aim of this study was to evaluate changes in gene expression and the proliferation rates in cultured HaCaT cells treated with TNF, IFNG, and IL17. We found that HaCaT cells decrease their proliferation rate in response to either IL17 or a combination TNF and IFNG. The analysis of microarray data discovered a group of 12 genes, which were downregulated in HaCaT after treatments with the named cytokines and upregulated in psoriatic lesional skin. Eight genes were important for DNA replication and they also contributed to two larger networks that regulated cell progression through the cell cycle. We conclude that HaCaT cells have a sufficient limitation as a cellular model of psoriasis due to their treatment with proinflammatory cytokines, namely TNF, IFNG, and IL17 does not increase their proliferation rate. Thus, the studies of psoriasis based on HaCaT cells as an experimental model shall take in account this important phenomenon.

Journal

Russian Journal of GeneticsSpringer Journals

Published: Oct 23, 2014

References

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