PMID- 30221695 OWN - NLM STAT- MEDLINE DCOM- 20190125 LR - 20190125 IS - 1791-3004 (Electronic) IS - 1791-2997 (Print) IS - 1791-2997 (Linking) VI - 18 IP - 5 DP - 2018 Nov TI - CXCL12 induces migration of oligodendrocyte precursor cells through the CXCR4‑activated MEK/ERK and PI3K/AKT pathways. PG - 4374-4380 LID - 10.3892/mmr.2018.9444 [doi] AB - Demyelination is a nervous system disease in which the myelin sheaths of neurons are damaged due to inflammatory reactions, inherited abnormalities or trauma. This damage impairs the conduction of signals in the affected nerves, which in turn causes deficiencies in sensation, movement and cognition. Oligodendrocyte precursor cells (OPCs) are able to induce remyelination. However, the remyelination is suboptimal due to the limited migration of OPCs. In the present study, neonatal OPCs were isolated from rats for the investigation of the role of C‑X‑C motif chemokine ligand 12 (CXCL12), an important chemokine, in mediating the migration ability of OPCs. The present results demonstrated that CXCL12 stimulation markedly promoted the migration of OPCs and activated the dual specificity mitogen‑activated protein kinase kinase 1 (MEK)/extracellular signal‑regulated kinase (ERK) and phosphoinositide 3‑kinase (PI3K)/RAC‑alpha serine/threonine‑protein kinase (AKT) pathways. Knockdown of C‑X‑C motif chemokine receptor 4 (CXCR4; a receptor of CXCL12) reversed the CXCL12‑induced migration of OPCs and blocked the MEK/ERK and PI3K/AKT pathways. In addition, specific inhibitors of the MEK/ERK and PI3K/AKT pathways significantly reduced the migration of OPCs. Based on these findings, it was concluded that CXCL12 may induce the migration of OPCs through the CXCR4‑activated MEK/ERK and PI3K/AKT pathways. The results of the present study support the manipulation of CXCL12‑mediated OPC migration to improve remyelination. FAU - Tian, Yongyang AU - Tian Y AD - Department of Orthopedics, Third Military Medical University (Army Medical University), Chongqing 400037, P.R. China. FAU - Yin, Hong AU - Yin H AD - Department of Orthopedics, Third Military Medical University (Army Medical University), Chongqing 400037, P.R. China. FAU - Deng, Xi AU - Deng X AD - Department of Ultrasound, Xinqiao Hospital, Third Military Medical University (Army Medical University), Chongqing 400037, P.R. China. FAU - Tang, Beichuan AU - Tang B AD - Department of Orthopedics, Third Military Medical University (Army Medical University), Chongqing 400037, P.R. China. FAU - Ren, Xianjun AU - Ren X AD - Department of Orthopedics, Third Military Medical University (Army Medical University), Chongqing 400037, P.R. China. FAU - Jiang, Tao AU - Jiang T AD - Department of Orthopedics, Third Military Medical University (Army Medical University), Chongqing 400037, P.R. China. LA - eng PT - Journal Article DEP - 20180903 PL - Greece TA - Mol Med Rep JT - Molecular medicine reports JID - 101475259 RN - 0 (CXCL12 protein, rat) RN - 0 (Chemokine CXCL12) RN - 0 (Cxcr4 protein, rat) RN - 0 (Receptors, CXCR4) RN - EC 2.7.1.- (Phosphatidylinositol 3-Kinases) RN - EC 2.7.11.1 (Proto-Oncogene Proteins c-akt) RN - EC 2.7.12.2 (MAP Kinase Kinase 1) SB - IM MH - Animals MH - Cell Movement/genetics MH - Chemokine CXCL12/*genetics MH - Demyelinating Diseases/genetics/pathology MH - Humans MH - Inflammation/genetics/pathology MH - MAP Kinase Kinase 1/genetics MH - Myelin Sheath/genetics/pathology MH - Nervous System Diseases/*genetics/metabolism/pathology MH - Oligodendrocyte Precursor Cells/metabolism MH - Phosphatidylinositol 3-Kinases/genetics MH - Proto-Oncogene Proteins c-akt/genetics MH - Rats MH - Receptors, CXCR4/*genetics MH - Remyelination/*genetics PMC - PMC6172403 EDAT- 2018/09/18 06:00 MHDA- 2019/01/27 06:00 PMCR- 2018/09/03 CRDT- 2018/09/18 06:00 PHST- 2018/02/06 00:00 [received] PHST- 2018/07/09 00:00 [accepted] PHST- 2018/09/18 06:00 [pubmed] PHST- 2019/01/27 06:00 [medline] PHST- 2018/09/18 06:00 [entrez] PHST- 2018/09/03 00:00 [pmc-release] AID - mmr-18-05-4374 [pii] AID - 10.3892/mmr.2018.9444 [doi] PST - ppublish SO - Mol Med Rep. 2018 Nov;18(5):4374-4380. doi: 10.3892/mmr.2018.9444. Epub 2018 Sep 3.