Abstract
Background & Aim Fetal bovine serum (FBS) is a common component of culture media and usually used for cellular research, as well as recent cell-based medical products. However, due to the high risk of contaminations and the variation from batch to batch, FBS might influence the outcome of research or cellular manufacturing. FBS also contains moral concerns because it harvested from bovine fetuses taken from pregnant cows. In addition, FBS is most expensive part of cell culture. To overcome several problems regarding FBS, we developed a new serum, adult bovine platelet lysate-derived cell culture supplement (NeoSERA), and investigate its usefulness as an alternative to FBS. Methods, Results & Conclusion NeoSERA is produced in Japan, considered to be a negligible bovine spongiform encephalopathy (BSE) risk country. We obtain adult donor bovine blood from animal less than 36 months old according to the regulation of EMA for BSE (EMA/410/01 rev.3). Using apheresis medical devices with closed disposable kits, sterile platelet-rich plasma (PRP) is collected from healthy donor bovine receiving a regular veterinary check. After stimulation and removal of coagulated fibrin by centrifugation, NeoSERA is collected in a completely closed system. To meet the scope of directives that apply to produce medicinal products from the European Agency for the Evaluation of Medicinal Products (EMEA/CVMP/743/00) and the United States Department of Agriculture (9CFR§113.450), NeoSERA is finally g-irradiated at a dose of over 30 kGy. NeoSERA completely meets the standard for biological ingredients in Japan (Ministry of Health, Labour and Welfare Notification No. 375 2014) and also obtained the certificate of eligibility for the raw material of regenerative medicine from Pharmaceuticals and Medical Devices Agency (PMDA, No. 0417002, 2017. 4.17). To test whether NeoSERA is useful for the expansion of mesenchymal stem cells (MSCs), a cell culture experiment was performed. 3 to 5 days after NeoSERA treatment, the proliferation of human bone marrow-, adipose tissue-, umbilical cord- and amnion-derived MSCs was significantly increased (p Our results confirm that safe, less ethical and economical bovine NeoSERA profoundly enhances the proliferation of MSCs for regenerative medicine and several cell lines for vaccine production.
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