A Cmv2 QTL on chromosome X affects MCMV resistance in New Zealand male mice

A Cmv2 QTL on chromosome X affects MCMV resistance in New Zealand male mice NK cell-mediated resistance to viruses is subject to genetic control in humans and mice. Here we used classical and quantitative genetic strategies to examine NK-mediated murine cytomegalovirus (MCMV) control in genealogically related New Zealand white (NZW) and black (NZB) mice. NZW mice display NK cell-dependent MCMV resistance while NZB NK cells fail to limit viral replication after infection. Unlike Ly49H+ NK resistance in C57BL/6 mice, NZW NK-mediated MCMV control was Ly49H-independent. Instead, MCMV resistance in NZW (Cmv2) involves multiple genetic factors. To establish the genetic basis of Cmv2 resistance, we further characterized a major chromosome X-linked resistance locus (DXMit216) responsible for innate MCMV control in NZW × NZB crosses. We found that the DXMit216 locus affects early MCMV control in New Zealand F2 crosses and demonstrate that the NZB-derived DXMit216 allele enhances viral resistance in F2 males. The evolutionary conservation of the DXMit216 region in mice and humans suggests that a Cmv2-related mechanism may affect human antiviral responses. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Mammalian Genome Springer Journals

A Cmv2 QTL on chromosome X affects MCMV resistance in New Zealand male mice

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Publisher
Springer-Verlag
Copyright
Copyright © 2009 by Springer Science+Business Media, LLC
Subject
Life Sciences; Zoology ; Anatomy ; Cell Biology
ISSN
0938-8990
eISSN
1432-1777
D.O.I.
10.1007/s00335-009-9203-8
Publisher site
See Article on Publisher Site

Abstract

NK cell-mediated resistance to viruses is subject to genetic control in humans and mice. Here we used classical and quantitative genetic strategies to examine NK-mediated murine cytomegalovirus (MCMV) control in genealogically related New Zealand white (NZW) and black (NZB) mice. NZW mice display NK cell-dependent MCMV resistance while NZB NK cells fail to limit viral replication after infection. Unlike Ly49H+ NK resistance in C57BL/6 mice, NZW NK-mediated MCMV control was Ly49H-independent. Instead, MCMV resistance in NZW (Cmv2) involves multiple genetic factors. To establish the genetic basis of Cmv2 resistance, we further characterized a major chromosome X-linked resistance locus (DXMit216) responsible for innate MCMV control in NZW × NZB crosses. We found that the DXMit216 locus affects early MCMV control in New Zealand F2 crosses and demonstrate that the NZB-derived DXMit216 allele enhances viral resistance in F2 males. The evolutionary conservation of the DXMit216 region in mice and humans suggests that a Cmv2-related mechanism may affect human antiviral responses.

Journal

Mammalian GenomeSpringer Journals

Published: Jul 30, 2009

References

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