{"title":"Dialysis and lyophilization of the mesenchymal stromal cell secretome for wound healing","authors":"Swapnali Sakhare , Avinash Sanap , Ramesh Bhonde , Shubhanath Behera , Pranjali Potdar , Supriya Kheur , Avinash Kharat","doi":"10.1016/j.jcyt.2024.12.013","DOIUrl":null,"url":null,"abstract":"<div><h3>Background aims</h3><div>The clinical translation of mesenchymal stromal cell secretome (MSC-S) has been challenging owing to a lack of appropriate methods in downstream processing. Dialysis is an age-old method of protein purification by the exchange of small molecules through a semi-permeable membrane. In this study, we investigated the potential of three forms of umbilical cord–derived MSC secretome (UC-MSC-S)—native (S), dialyzed (DS), and lyophilized (LDS)—for wound healing applications.</div></div><div><h3>Methods and Results</h3><div>We dialyzed the UC-MSC-S using Slide-A-Lyzer G3 Dialysis Cassettes (20K MWCO) and then lyophilized it to obtain secretome powder. The DS fraction exhibited an 86.01-fold decrease compared with S, whereas LDS showed a 613.71-fold increase in the total protein concentration. Growth factor analysis revealed a significant decrease in the levels of interleukin-6 (IL-6; 54.44-fold), angiopoietin-1 (79.56-fold), angiopoietin-2 (51.76-fold), IL-8 (54.4-fold), platelet endothelial cell adhesion molecule-1 (PECAM-1; 63.25-fold), phosphatidylinositol glycan anchor biosynthesis class F (PIGF; 40.42-fold), vascular endothelial growth factor (VEGF; 39.64-fold), and tumor necrosis factor alpha (TNF-α; 24.62-fold) after dialysis as analyzed by the LEGEND plex multi-analyte flow assay kit on a FACS analyzer. Post-lyophilization, the levels of IL-6 (392.21-fold), angiopoietin-1 (823.04-fold), angiopoietin-2 (397.69-fold), IL-8 (584.83-fold), PECAM-1 (341.28-fold), PIGF (342.85-fold), VEGF (2209.42-fold), and TNF-α (194.4-fold) were enriched in LDS. The highest wound closure (64.07%) and a significant increase in angiogenesis were seen in DLS at the concentration of 1 µg/µL of protein by wound scratch and <em>in ovo</em> yolk sac membrane assay, respectively.</div></div><div><h3>Conclusions</h3><div>Dialysis followed by lyophilization is a simple and cost-effective method to fractionate and enrich the bioactive components of MSC-S without compromising the bioactivity for tailor-made applications.</div></div>","PeriodicalId":50597,"journal":{"name":"Cytotherapy","volume":"27 4","pages":"Pages 544-551"},"PeriodicalIF":3.7000,"publicationDate":"2025-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Cytotherapy","FirstCategoryId":"3","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1465324925000015","RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"BIOTECHNOLOGY & APPLIED MICROBIOLOGY","Score":null,"Total":0}
引用次数: 0
Abstract
Background aims
The clinical translation of mesenchymal stromal cell secretome (MSC-S) has been challenging owing to a lack of appropriate methods in downstream processing. Dialysis is an age-old method of protein purification by the exchange of small molecules through a semi-permeable membrane. In this study, we investigated the potential of three forms of umbilical cord–derived MSC secretome (UC-MSC-S)—native (S), dialyzed (DS), and lyophilized (LDS)—for wound healing applications.
Methods and Results
We dialyzed the UC-MSC-S using Slide-A-Lyzer G3 Dialysis Cassettes (20K MWCO) and then lyophilized it to obtain secretome powder. The DS fraction exhibited an 86.01-fold decrease compared with S, whereas LDS showed a 613.71-fold increase in the total protein concentration. Growth factor analysis revealed a significant decrease in the levels of interleukin-6 (IL-6; 54.44-fold), angiopoietin-1 (79.56-fold), angiopoietin-2 (51.76-fold), IL-8 (54.4-fold), platelet endothelial cell adhesion molecule-1 (PECAM-1; 63.25-fold), phosphatidylinositol glycan anchor biosynthesis class F (PIGF; 40.42-fold), vascular endothelial growth factor (VEGF; 39.64-fold), and tumor necrosis factor alpha (TNF-α; 24.62-fold) after dialysis as analyzed by the LEGEND plex multi-analyte flow assay kit on a FACS analyzer. Post-lyophilization, the levels of IL-6 (392.21-fold), angiopoietin-1 (823.04-fold), angiopoietin-2 (397.69-fold), IL-8 (584.83-fold), PECAM-1 (341.28-fold), PIGF (342.85-fold), VEGF (2209.42-fold), and TNF-α (194.4-fold) were enriched in LDS. The highest wound closure (64.07%) and a significant increase in angiogenesis were seen in DLS at the concentration of 1 µg/µL of protein by wound scratch and in ovo yolk sac membrane assay, respectively.
Conclusions
Dialysis followed by lyophilization is a simple and cost-effective method to fractionate and enrich the bioactive components of MSC-S without compromising the bioactivity for tailor-made applications.
期刊介绍:
The journal brings readers the latest developments in the fast moving field of cellular therapy in man. This includes cell therapy for cancer, immune disorders, inherited diseases, tissue repair and regenerative medicine. The journal covers the science, translational development and treatment with variety of cell types including hematopoietic stem cells, immune cells (dendritic cells, NK, cells, T cells, antigen presenting cells) mesenchymal stromal cells, adipose cells, nerve, muscle, vascular and endothelial cells, and induced pluripotential stem cells. We also welcome manuscripts on subcellular derivatives such as exosomes. A specific focus is on translational research that brings cell therapy to the clinic. Cytotherapy publishes original papers, reviews, position papers editorials, commentaries and letters to the editor. We welcome "Protocols in Cytotherapy" bringing standard operating procedure for production specific cell types for clinical use within the reach of the readership.