I I am working on my project on c2c12 cell line. However, we have just hsa-mir in our lab.is it possible that i use them or need to order mmu-mir anyway?
do I understand you correctly that you want to use a qPCR array or microarray to assess miRNA expression in a murine cell line? In this case, you will have to purchase the mmu variant of the platform.
If you want to look at specific miRNAs you might be lucky that they are the same in mouse and in human. In that case you can still use the human qPCR primers. However, you have to make sure that they are matching perfectly. Otherwise it will not work again.