MicroRNAs are a part of the integral regulatory mechanisms found in eukaryotic cells that help in maintaining cellular homeostasis by modulating the expression of target genes. However, during stress conditions like viral infection, the expression profile of the microRNAs change, thereby directly modulating the expression of viral genes and/or indirectly targeting the virus by regulating the host genes. The present study intends to identify previously uncharacterized cellular microRNAs, which are significantly modulated upon HIV-1 infection. With the available microarray data of five independent studies in the NCBI GEO database, 10 common yet functionally uncharacterized microRNAs that are deregulated during HIV-1 infection in humans were identified. Their expression profiles were validated in HIV-1 infected human peripheral blood mononuclear cells and a CD4