Identification and characterization of differentially expressed mRNAs in HIV type 1-infected human T cells.
AIDS Res Hum Retroviruses
; 16(10): 995-1005, 2000 Jul 01.
Article
de En
| MEDLINE
| ID: mdl-10890361
ABSTRACT
We used a novel differential display (DD) technique to identify host factors involved in virus replication, pathogenesis, and host response in HIV-1-infected T cells. Thirteen cDNA fragments differentially expressed in HIV-1NL4-3-infected MT-4 cells prior to the occurrence of specific apoptotic cell death were sequenced and identified. Two of seven elevated genes were identical to HIV-1 sequences and the other five were MIP-1alpha, ACTE-III, CD11c, arginase I, and CCR5. The six downregulated genes included prothymosin-a, Jaw-1, proteasome subunit XAPC7, splicing factor 9G8, GA17 protein, and an unknown mRNA. Northern blot and RT-PCR analyses confirmed the altered gene expressions in MT-4 cells as well as in another T cell line, MOLT-4. We also revealed that the amount of MIP-1alpha in culture supernatant of HIV-1-infected cells was increased by more than 15-fold relative to control cells, and the expression of its receptor CCR5 was cooperatively upregulated on the surface of these cells. Furthermore, the upregulation of CD11c after HIV-1 infection was slightly inhibited by blocking the MIP-1alpha-mediated signal transduction. These results indicate that genes altered on HIV-1 infection may be mutually organized and play an important role in HIV-1-induced pathogenesis.
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Collection:
01-internacional
Base de données:
MEDLINE
Sujet principal:
Lymphocytes T
/
VIH-1 (Virus de l'Immunodéficience Humaine de type 1)
/
Analyse de profil d'expression de gènes
Type d'étude:
Diagnostic_studies
/
Prognostic_studies
Limites:
Humans
Langue:
En
Journal:
AIDS Res Hum Retroviruses
Sujet du journal:
SINDROME DA IMUNODEFICIENCIA ADQUIRIDA (AIDS)
Année:
2000
Type de document:
Article
Pays d'affiliation:
Japon