PMID- 26325448 OWN - NLM STAT- MEDLINE DCOM- 20160728 LR - 20181202 IS - 1744-7682 (Electronic) IS - 1471-2598 (Linking) VI - 15 IP - 12 DP - 2015 TI - Prolyl hydroxylase inhibitors act as agents to enhance the efficiency of cell therapy. PG - 1739-55 LID - 10.1517/14712598.2015.1084281 [doi] AB - INTRODUCTION: In stem cell-based therapy as a subtype of regenerative medicine, stem cells can be used to replace or repair injured tissue and cells in order to treat disease. Stem cells have the ability to integrate into injured areas and produce new cells via processes of proliferation and differentiation. Several studies have demonstrated that hypoxia increases self-renewal, proliferation and post-homing differentiation of stem cells through the regulation of hypoxia-inducible factor-1 (HIF-1)-mediated gene expression. Thus, pharmacological interventions including prolyl hydroxylase (PHD) inhibitors are considered as promising solutions for stem cell-based therapy. PHD inhibitors stabilize the HIF-1 and activate its pathway through preventing proteasomal degradation of HIF-1. AREAS COVERED: This review focuses on the role of hypoxia, HIF-1 and especially PHD inhibitors on cell therapy. PHD structure and function are discussed as well as their inhibitors. In addition, we have investigated several preclinical studies in which PHD inhibitors improved the efficiency of cell-based therapies. EXPERT OPINION: The data reviewed here suggest that PHD inhibitors are effective operators in improving stem cell therapy. However, because of some limitations, these compounds should be properly examined before clinical application. FAU - Esfahani, Maryam AU - Esfahani M AD - a 1 Research center for molecular medicine, Hamadan University of Medical Sciences , Hamadan, the Islamic Republic of Iran najafi2535@gmail.com. FAU - Karimi, Fatemeh AU - Karimi F AD - a 1 Research center for molecular medicine, Hamadan University of Medical Sciences , Hamadan, the Islamic Republic of Iran najafi2535@gmail.com. FAU - Afshar, Saeid AU - Afshar S AD - a 1 Research center for molecular medicine, Hamadan University of Medical Sciences , Hamadan, the Islamic Republic of Iran najafi2535@gmail.com. FAU - Niknazar, Somayeh AU - Niknazar S AD - b 2 Shahid Beheshti University of Medical Science, Hearing Disorders Research Center , Tehran, the Islamic Republic of Iran. FAU - Sohrabi, Sareh AU - Sohrabi S AD - a 1 Research center for molecular medicine, Hamadan University of Medical Sciences , Hamadan, the Islamic Republic of Iran najafi2535@gmail.com. FAU - Najafi, Rezvan AU - Najafi R AD - a 1 Research center for molecular medicine, Hamadan University of Medical Sciences , Hamadan, the Islamic Republic of Iran najafi2535@gmail.com. LA - eng PT - Journal Article PT - Review DEP - 20150828 PL - England TA - Expert Opin Biol Ther JT - Expert opinion on biological therapy JID - 101125414 RN - 0 (Hypoxia-Inducible Factor 1, alpha Subunit) RN - 0 (Prolyl-Hydroxylase Inhibitors) SB - IM MH - Animals MH - Cell Differentiation/drug effects/physiology MH - Cell Hypoxia/drug effects/physiology MH - Cell- and Tissue-Based Therapy/*methods/trends MH - Humans MH - Hypoxia-Inducible Factor 1, alpha Subunit/*antagonists & inhibitors/genetics MH - Prolyl-Hydroxylase Inhibitors/*administration & dosage MH - Stem Cell Transplantation/methods/trends MH - Treatment Outcome OTO - NOTNLM OT - hypoxia OT - hypoxia-inducible factor-1 OT - prolyl hydroxylase inhibitors OT - stem cell therapy EDAT- 2015/09/02 06:00 MHDA- 2016/07/29 06:00 CRDT- 2015/09/02 06:00 PHST- 2015/09/02 06:00 [entrez] PHST- 2015/09/02 06:00 [pubmed] PHST- 2016/07/29 06:00 [medline] AID - 10.1517/14712598.2015.1084281 [doi] PST - ppublish SO - Expert Opin Biol Ther. 2015;15(12):1739-55. doi: 10.1517/14712598.2015.1084281. Epub 2015 Aug 28.