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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Upregulation of hsa-miR-125b in HTLV-1 asymptomatic carriers and HTLV-1-associated myelopathy/tropical spastic paraparesis patients

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Author(s):
de Figueiredo Nicolete, Larissa Deadame [1, 2, 3] ; Nicolete, Roberto [3] ; Haddad, Rodrigo [4, 1] ; Azevedo, Rochele [1] ; de Castro, Fabiola Attie [2] ; Tanaka, Yuetsu [5, 6] ; Takayanagui, Osvaldo Massaiti [4] ; Covas, Dimas Tadeu [4, 1] ; Kashima, Simone [4, 1, 2]
Total Authors: 9
Affiliation:
[1] Univ Sao Paulo, Fundacao Hemoctr Ribeirao Preto, BR-14049 Ribeirao Preto, SP - Brazil
[2] Univ Sao Paulo, Dept Anal Clin Toxicol & Bromatol, Fac Ciencias Farmaceut Ribeirao Preto, BR-14049 Ribeirao Preto, SP - Brazil
[3] Fiocruz Rondonia, Porto Velho, RO - Brazil
[4] Univ Sao Paulo, Fac Med Ribeirao Preto, Ribeirao Preto, SP - Brazil
[5] Univ Ryukyus, Dept Immunol, Grad Sch, Nishihara, Okinawa 90301 - Japan
[6] Univ Ryukyus, Fac Med, Nishihara, Okinawa 90301 - Japan
Total Affiliations: 6
Document type: Journal article
Source: Memórias do Instituto Oswaldo Cruz; v. 107, n. 6, p. 824-827, SEP 2012.
Web of Science Citations: 3
Abstract

The retrovirus human T lymphotropic virus type 1 (HTLV-1) promotes spastic paraparesis, adult T cell leukaemia and other diseases. Recently, some human microRNAs (miRNAs) have been described as important factors in host-virus interactions. This study compared miRNA expression in control individuals, asymptomatic HTLV-1 carriers and HTLV-1 associated myelopathy (HAM)/tropical spastic paraparesis patients. The proviral load and Tax protein expression were measured in order to characterize the patients. hsa-miR-125b expression was significantly higher in patients than in controls (p = 0.0285) or in the HAM group (p = 0.0312). Therefore, our findings suggest that miR-125b expression can be used to elucidate the mechanisms of viral replication and pathogenic processes. (AU)