Cobalt (II) chloride in enhancing hypoxia inducible factor-1a expression of gingival derived mesenchymal stem cells In vitro Nugraha Alexander P.1, Ihsan Igo S.2, Dinaryanti Aristika2, Hendrianto Eryk2, Susilowati Helen3, Prasetyo Eric P.4, Narmada Ida B.1, Ernawati Diah S.5,*, Nugraha Andreas P.6, Kharisma Viol Dhea7, Riawan Wibi8, Rantam Fedik A.3,9 1Department of Orthodontics, Faculty of Dental Medicine, Universitas Airlangga, Surabaya, Indonesia 2Stem Cell Research and Development Center, Universitas Airlangga, Surabaya, Indonesia 3Research Center of Vaccine Technology and Development, Universitas Airlangga, Surabaya, Indonesia 4Department of Conservative Dentistry, Faculty of Dental Medicine, Universitas Airlangga, Surabaya, Indonesia 5Department of Oral Medicine, Faculty of Dental Medicine, Universitas Airlangga, Surabaya, Indonesia 6Oral and Maxillofacial Surgery Resident, Faculty of Dental Medicine, Universitas Airlangga, Surabaya, Indonesia 7Department of Biology, Faculty of Mathematics and Natural Science, Brawijaya University, Malang, Indonesia 8Department of Biomolecular Biochemistry, Faculty of Medicine, Brawijaya University, Malang, Indonesia 9Laboratory of Virology and Immunology, Department of Microbiology, Faculty of Veterinary Medicine, Universitas Airlangga, Surabaya, Indonesia *Corresponding Author E-mail: diah-s-e@fkg.unair.ac.id
Online published on 25 August, 2021. Abstract Despite gingival derived mesenchymal stem cells (GDMSCs) are unique and have numerous advantages for regenerative dentistry, the hypoxia preconditioning of GDMSCs may be essential prior to the transplantation. The aim of this study is to examine whether CoCl2 can enhance HIF-1a in GDMSCs in vitro. GDMSCs of Rabbit (Oryctolagus cuniculus) were obtained from laboratory stock. The sample for this study was randomly selected and divided into 4 groups; GDMSC normoxia (24 hours and 48 hours) groups and GDMSC hypoxia (24 hours and 48 hours) groups respectively (N=20/n=5). To stimulate the hypoxia condition, the final concentration of 100μM Cobalt (II) Chloride (CoCh) was used in this study. The examination of Hypoxia Inducible Factor-1a (HIF-1a) stimulated with C0CI2 in the GDMSCs utilized immunocytochemistry methods with Fluorescein isothiocyanate antibody labelling. The Tukey Honest Significant Different (HSD) test was conducted to compare the significant difference in HIF-1a expression between groups (p<0.01). The greatest expression of HIF-1a is found in GDMSCs treated with CoCl2 for 24 hours. There was significant difference in HIF-1a expression between GMSCs normoxia (24 hours and 48 hours) and GMSCs hypoxia of 24 hours groups but not 48 hours group (p<0.01). CoCl2 can enhance significantly HIF-1a expression of GDMSCs for 24 hours in vitro. Top Keywords Cobalt (II) Chloride, Gingival Derived Mesenchymal Stem Cells, Hypoxia Inducible Factor -1a, Hypoxia preconditioning, Medicine. Top |