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Expression of human miR-200b-3p and -200c-3p in cytomegalovirus-infected tissues

 Kyoung Hwa Lee  ;  Beom Jin Lim  ;  Victor H. Ferreira  ;  Seo Yeon Min  ;  Yeon-Mi Hong  ;  Jeong-Hyeon Jo  ;  Sang Hoon Han 
 BIOSCIENCE REPORTS, Vol.38(6) : BSR20180961, 2018 
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cytomegalovirus ; immediate early protein 2 ; microRNA ; tissues
Human cytomegalovirus (HCMV) infection can cause inflammatory tissue-invasive end-organ diseases upon lytic replication. In humans, mature miR-200b-3p and -200c-3p suppress the synthesis of HCMV immediate early 2 (IE2) protein by binding to the 3'-UTR of the mRNA encoded by the unique long (UL) 122-123 region in human foreskin fibroblasts and pre-transplant peripheral blood mononuclear cells stimulated with HCMV. The present study aimed to quantitate the expression of Homo sapiens (hsa)-miR-200b-3p and 200c-3p in HCMV-infected tissues. We collected 240 HCMV-infected and 154 HCMV-non-infected, formalin-fixed, paraffin-embedded tissue samples of the gastrointestinal (GI) tract and bronchi/lungs. MiRNAs, HCMV, and glyceraldehyde-3-phosphate dehydrogenase (GAPDH) were quantitated by quantitative reverse transcription-PCR (qRT-PCR) and quantitative PCR (qPCR) on the basis of standard curves generated using miRNA mimics, the HCMV strain from National Institute for Biological Standards and Control (NIBSC) 09/162, and GAPDH control. To avoid the effect of cell counts on the qRT-PCR and qPCR results, the data were normalized to GAPDH levels. HCMV-infected tissues had significantly lower levels of 200b-3p/GAPDH (3.03 ± 1.50 compared with 3.98 ± 1.08 log10 copies/μl, P<0.001) and 200c-3p/GAPDH (4.67 ± 1.84 compared with 6.35 ± 1.47 log10 copies/μl, P<0.001) than normal tissues. The values for 200b-3p/GAPDH (r = -0.51, P<0.001) and 200c-3p/GAPDH (r = -0.54, P<0.001) were significantly inversely correlated with HCMV load. Low tissue levels of 200b-3p and 200c-3p in humans are associated with cytopathic inflammation due to HCMV infection.
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1. College of Medicine (의과대학) > Dept. of Internal Medicine (내과학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Pathology (병리학교실) > 1. Journal Papers
Yonsei Authors
Lee, Kyoung Hwa(이경화) ORCID logo https://orcid.org/0000-0003-0033-1398
Lim, Beom Jin(임범진) ORCID logo https://orcid.org/0000-0003-2856-0133
Han, Sang Hoon(한상훈) ORCID logo https://orcid.org/0000-0002-4278-5198
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