These authors contributed equally: Marko Šestan, Inga Kavazović.

Department of Histology and Embryology, Faculty of Medicine, University of Rijeka, Rijeka, Croatia

Vedrana Jelenčić, Marko Šestan, Inga Kavazović, Maja Lenartić, Sonja Marinović, Berislav Lisnić, Felix M. Wensveen & Bojan Polić

Center for Hematology and Regenerative Medicine, Department of Medicine Huddinge, Karolinska Institutet, Stockholm, Sweden

Tim D. Holmes & Yenan T. Bryceson

Institute of Pharmacology and Toxicology, Department for Biomedical Sciences, University of Veterinary Medicine Vienna, Vienna, Austria

Michaela Prchal-Murphy & Veronika Sexl

Broegelmann Laboratory, Department of Clinical Sciences, University of Bergen, Bergen, Norway

Yenan T. Bryceson

Correspondence to Bojan Polić.