PMID- 36318091 OWN - NLM STAT- MEDLINE DCOM- 20230315 LR - 20230403 IS - 1530-8022 (Electronic) IS - 0885-3282 (Linking) VI - 37 IP - 8 DP - 2023 Mar TI - Primary hepatocyte urea assessment in the sodium-alginate patterned hydrogel by electrochemical procedure containing umbilical cord conditioned media. PG - 1470-1485 LID - 10.1177/08853282221137093 [doi] AB - Limitations in liver transplantation and advances in cell therapy methods motivated us to study primary hepatocytes. The main challenge in using primary hepatocytes for liver regeneration is that they lose their functionalities. We aimed to develop a controlled-shape hydrogel and apply the conditioned-media of mesenchymal stromal cells (CM-MSCs) to improve in vitro hepatocyte functions. In this experimental study, following rat hepatocyte isolation by collagenase perfusion and collection of human umbilical cord CM-MSCs, a simple and precise system called electrodeposition was used to produce the patterned alginate hydrogel. To reduce the cytopathic effects, we used an indirect electrodeposition method. For characterizing this structure, mechanical properties, Fourier-transform infrared spectroscopy (FTIR), water uptake, in-vitro degradation, and hydrogel stability were studied. Urea synthesis as a basic function of hepatocytes was assessed in five different groups. Scanning electron microscope (SEM) was utilized to evaluate the primary hepatocyte morphology and their dispersion in the fabricated structure. We observed a significant increase in urea synthesis in the presence of CM-MSCs in patterned hydrogel alginate compared to 2D culture on day 3 (p<0.05). However, there was no significant difference in simple and patterned hydrogel on day 2. We found that the electrodeposition method is appropriate for the rapid fabricating of hydrogel structures with arbitrary patterns for 3D cell culture. FAU - Abolhassani, Sareh AU - Abolhassani S AUID- ORCID: 0000-0001-9313-243X AD - School of Advanced Medical Sciences and Technologies, 48435Shiraz University of Medical Sciences, Shiraz, Iran. FAU - Hossein-Aghdaei, Mahdokht AU - Hossein-Aghdaei M AD - Transplant Research Center, 226722Shiraz University of Medical Sciences, Shiraz, Iran. FAU - Geramizadeh, Bita AU - Geramizadeh B AD - Transplant Research Center, 226722Shiraz University of Medical Sciences, Shiraz, Iran. FAU - Azarpira, Negar AU - Azarpira N AD - Transplant Research Center, 226722Shiraz University of Medical Sciences, Shiraz, Iran. FAU - Koohpeyma, Farhad AU - Koohpeyma F AD - Endocrine and metabolism Research Center, 48435Shiraz University of Medical Sciences, Shiraz, Iran. FAU - Gholami, Mahnaz AU - Gholami M AD - Transplant Research Center, 226722Shiraz University of Medical Sciences, Shiraz, Iran. FAU - Alizadeh, Aliakbar AU - Alizadeh A AD - School of Advanced Medical Sciences and Technologies, 48435Shiraz University of Medical Sciences, Shiraz, Iran. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20221101 PL - England TA - J Biomater Appl JT - Journal of biomaterials applications JID - 8813912 RN - 0 (Hydrogels) RN - 0 (Culture Media, Conditioned) RN - 0 (Alginates) RN - 8W8T17847W (Urea) RN - 9NEZ333N27 (Sodium) SB - IM MH - Rats MH - Humans MH - Animals MH - *Hydrogels/metabolism MH - Culture Media, Conditioned MH - *Alginates/chemistry MH - Urea MH - Hepatocytes MH - Umbilical Cord MH - Sodium/metabolism OTO - NOTNLM OT - Ca-alginate hydrogel OT - conditioned medium OT - electrodeposition OT - primary hepatocyte OT - regenerative medicine OT - urea assessment EDAT- 2022/11/02 06:00 MHDA- 2023/03/16 06:00 CRDT- 2022/11/01 10:42 PHST- 2022/11/02 06:00 [pubmed] PHST- 2023/03/16 06:00 [medline] PHST- 2022/11/01 10:42 [entrez] AID - 10.1177/08853282221137093 [doi] PST - ppublish SO - J Biomater Appl. 2023 Mar;37(8):1470-1485. doi: 10.1177/08853282221137093. Epub 2022 Nov 1.