PMID- 26026617 OWN - NLM STAT- MEDLINE DCOM- 20160531 LR - 20181113 IS - 1573-4919 (Electronic) IS - 0300-8177 (Linking) VI - 407 IP - 1-2 DP - 2015 Sep TI - Response of endothelial cells and pericytes to hypoxia and erythropoietin in a co-culture assay dedicated to soft tissue repair. PG - 29-40 LID - 10.1007/s11010-015-2451-x [doi] AB - The increasing mean life expectancy of the citizens of the western world countries leads to an increase of the age-related diseases, among them soft tissue defects exhibiting inadequate healing. In order to develop new therapeutic strategies to support disturbed soft tissue repair, there is a strong need of sophisticated in vitro assays. A new assay combining scratch wounding with co-cultures of primary human microvascular endothelial cells (HDMEC) and pericytes (HPC) focuses on basic characteristics of cell interaction against the background of soft tissue repair. The cell parameters proliferation, migration and differentiation, and the release of monocyte chemoattractant protein-1 (MCP-1) were analysed in response to hypoxia (pO2 < 5 mmHg) and to erythropoietin (EPO; 50 IU/ml), a glycoprotein hormone having shown promising effects in soft tissue repair. As basic characteristics of the assay, direct cell contact in co-culture led to a weakened proliferation of both cell types, an increase of the percentage of myofibroblast-like pericytes and to a higher release of MCP-1. Hypoxia caused a proliferation decrease of HPC in co-culture, which was slightly attenuated by EPO. Hypoxia also reduced the MCP-1 release of co-cultured cells, when EPO had been added. In addition, EPO had a rather positive effect on HPC migration under hypoxia. These in vitro results allow new insights into the interaction of pericytes with endothelial cells in the context of soft tissue repair. FAU - Schneider, Gerrit AU - Schneider G AD - Department of Trauma-, Hand- and Reconstructive Surgery, Saarland University, Kirrberger Strasse, Bldng. 57, 66421, Homburg, Germany. FAU - Bubel, Monika AU - Bubel M FAU - Pohlemann, Tim AU - Pohlemann T FAU - Oberringer, Martin AU - Oberringer M LA - eng PT - Journal Article DEP - 20150531 PL - Netherlands TA - Mol Cell Biochem JT - Molecular and cellular biochemistry JID - 0364456 RN - 0 (CCL2 protein, human) RN - 0 (Chemokine CCL2) RN - 11096-26-7 (Erythropoietin) SB - IM MH - Cell Differentiation/drug effects MH - Cell Hypoxia MH - Cell Line MH - Cell Movement/drug effects MH - Cell Proliferation/drug effects MH - Chemokine CCL2/*metabolism MH - Coculture Techniques/*methods MH - Endothelial Cells/*cytology/metabolism MH - Erythropoietin/*pharmacology MH - Humans MH - Pericytes/*cytology/metabolism MH - Wound Healing EDAT- 2015/06/01 06:00 MHDA- 2016/06/01 06:00 CRDT- 2015/06/01 06:00 PHST- 2015/03/11 00:00 [received] PHST- 2015/05/07 00:00 [accepted] PHST- 2015/06/01 06:00 [entrez] PHST- 2015/06/01 06:00 [pubmed] PHST- 2016/06/01 06:00 [medline] AID - 10.1007/s11010-015-2451-x [doi] PST - ppublish SO - Mol Cell Biochem. 2015 Sep;407(1-2):29-40. doi: 10.1007/s11010-015-2451-x. Epub 2015 May 31.