sentence1: Furthermore, a very recent study demonstrated the mechanism that specifies myeloid expression of miR-223 and proposed a unique “minicircuitry” comprised of miR-223 and transcription factors, NFI-A and CAAT enhancer-binding protein α (C/EBPα)
sentence2: miR-223 regulates granulopoiesis by a feedback mechanism and is modulated competitively by the transcription factors nuclear factor I/A (NFI-A) and CCAAT/enhancer binding protein-α (C/EBPα).