The FerrOs members were very keen on listening to the excellent talk of Delphine Meynard, who presented her newest work on the role of matripase-2 as a novel therapeutic target in diseases with ineffective hematopoiesis. Besides the stimulating talk, it was great to see each other again and get to know new members of the FerrOs consortium. We would like to thank Delphine Meynard from CRCN INSERM, Institut de Recherche en Santé Digestive Inserm (Toulouse, France) for her excellent talk and all researchers who contributed to the fruitful discussion.