PMID- 28947251 OWN - NLM STAT- MEDLINE DCOM- 20180418 LR - 20181202 IS - 1090-2392 (Electronic) IS - 0011-2240 (Linking) VI - 79 DP - 2017 Dec TI - Supplementation of freezing media with stromal cell-derived factor-1alpha preserves human sperm from cryodamage. PG - 37-42 LID - S0011-2240(17)30162-1 [pii] LID - 10.1016/j.cryobiol.2017.09.004 [doi] AB - The destructive effects of sperm cryopreservation result in reduced sperm motility and increased apoptosis. Oocytes, endometrium, and follicular fluid express stromal cell-derived factor-1 alpha (SDF-1alpha) or C-X-C motif chemokine ligand 12 (CXCL12) while its specific receptor chemokine, CXC motif receptor 4 (CXCR4) is expressed in the head of sperm. SDF-1alpha can increase sperm motility and preserve normal mitochondrial status. The present study intends to investigate whether the addition of SDF-1alpha to freezing extender can facilitate cryosurvival of spermatozoa and how SDF-1alpha protects spermatozoa against damages during cryopreservation. In this study, we collected 22 semen samples from healthy donors and treated them with different concentrations of SDF-1alpha, followed by cryopreservation for one month. We measured sperm motility by CASA, mitochondrial ROS generation by flow cytometry using the probe MitoSOX Red (MSR) to measure mitochondrial superoxide anion (O2(-)*), DNA fragmentation by flow cytometry according to the TUNEL kit, and expressions of Bcl-2 and Bax by RT-qPCR in freeze-thawed sperm. The results showed that SDF-1alpha attenuated mitochondrial ROS generation at different doses, particularly the 250 ng/ml treated samples which, in turn, reduced the expressions of pro-apoptotic genes such as Bax. Eventually, SDF-1alpha reduced DNA fragmentation and ameliorated sperm motility in the 1-100 ng/ml treated samples during cryopreservation. The present study, for the first time, demonstrated that SDF-1alpha dose-dependently moderated oxidative stress injury in human sperm by reduction of mitochondrial ROS generation. It could subsequently cause a decrease in apoptosis during freeze-thawing and protect human spermatozoa from cryodamage. CI - Copyright (c) 2017 Elsevier Inc. All rights reserved. FAU - Hatef, Behnaz AU - Hatef B AD - Department of Medical Genetics and Molecular Medicine, Faculty of Medicine, Zanjan University of Medical Sciences (ZUMS), Zanjan, Iran. Electronic address: behnaz.hatef@yahoo.com. FAU - Taromchi, Amirhossein AU - Taromchi A AD - Department of Medical Biotechnology and Nanotechnology, Faculty of Medicine, Zanjan University of Medical Sciences (ZUMS), Zanjan, Iran. Electronic address: Taromchi@yahoo.com. FAU - Nejatbakhsh, Reza AU - Nejatbakhsh R AD - Department of Anatomical Sciences, Faculty of Medicine, Zanjan University of Medical Sciences (ZUMS), Zanjan, Iran. Electronic address: Reza_nejat@yahoo.com. FAU - Farrokhi, Ahmad AU - Farrokhi A AD - Department of Anatomical Sciences, Faculty of Medicine, Zanjan University of Medical Sciences (ZUMS), Zanjan, Iran. FAU - Shokri, Saeed AU - Shokri S AD - Department of Anatomical Sciences, Faculty of Medicine, Zanjan University of Medical Sciences (ZUMS), Zanjan, Iran. Electronic address: saeedshus@zums.ac.ir. LA - eng PT - Journal Article DEP - 20170922 PL - Netherlands TA - Cryobiology JT - Cryobiology JID - 0006252 RN - 0 (CXCL12 protein, human) RN - 0 (Chemokine CXCL12) RN - 0 (Cryoprotective Agents) RN - 0 (Proto-Oncogene Proteins c-bcl-2) RN - 0 (Reactive Oxygen Species) RN - 0 (bcl-2-Associated X Protein) SB - IM MH - Adult MH - Apoptosis/drug effects MH - Chemokine CXCL12/*pharmacology MH - Cryopreservation/*methods MH - Cryoprotective Agents/*pharmacology MH - DNA Fragmentation/drug effects MH - Freezing MH - Humans MH - Male MH - Mitochondria/metabolism MH - Oxidative Stress/*drug effects MH - Proto-Oncogene Proteins c-bcl-2/metabolism MH - Reactive Oxygen Species/metabolism MH - Semen Preservation/*methods MH - Sperm Motility/*drug effects MH - Spermatozoa/drug effects MH - bcl-2-Associated X Protein/metabolism OTO - NOTNLM OT - Apoptosis OT - Chemokine CXCL12 OT - Cryopreservation OT - Reactive oxygen species OT - Sperm EDAT- 2017/09/28 06:00 MHDA- 2018/04/19 06:00 CRDT- 2017/09/27 06:00 PHST- 2017/05/06 00:00 [received] PHST- 2017/09/15 00:00 [revised] PHST- 2017/09/21 00:00 [accepted] PHST- 2017/09/28 06:00 [pubmed] PHST- 2018/04/19 06:00 [medline] PHST- 2017/09/27 06:00 [entrez] AID - S0011-2240(17)30162-1 [pii] AID - 10.1016/j.cryobiol.2017.09.004 [doi] PST - ppublish SO - Cryobiology. 2017 Dec;79:37-42. doi: 10.1016/j.cryobiol.2017.09.004. Epub 2017 Sep 22.