Negative regulation of diminutive cancer regulator through differentiation and microRNA pathway components in Drosophila cells

Drosophila model is intensively studied for the development of cancer. The diminutive (dMyc), a homolog of the humanMYC gene, is responsible for cell- apoptosis and its upregulation is responsible for determining the fate of cancerous growth in humansand Drosophila model. This work implores the requirement of dMyc and its expression as one of the major regulator of cancer withother proteins and repression of dMyc mRNA in Drosophila S2 cells. Here we report protein complex of Argonaute 1 (AGO1), Bag ofmarbles (Bam), and Brain tumor (Brat) proteins and not the individual factor of this complex repression of dMyc mRNA in DrosophilaSchneider 2 cells and promote differentiation in cystoblast of Drosophila ovary. These results exhibit the significant role of this complex,including master differentiation factor Bam with other various differentiation factor Brat and microRNA pathway component AGO1,which may negatively regulate dMyc mRNA and so the dMyc protein.

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