PMID- 34667726 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20211022 IS - 2222-3959 (Print) IS - 2227-4898 (Electronic) IS - 2222-3959 (Linking) VI - 14 IP - 10 DP - 2021 TI - Protective effect of LIF-huMSCs on the retina of diabetic model rats. PG - 1508-1517 LID - 10.18240/ijo.2021.10.06 [doi] AB - AIM: To investigate the protective effect of human umbilical cord mesenchymal stem cells (hUCMSCs) modified by the LIF gene on the retinal function of diabetic model rats and preliminarily explore the possible mechanism. METHODS: A stably transfected cell line of hUCMSCs overexpressing leukemia inhibitory factor (LIF) was constructed. Overexpression was verified by fluorescent quantitative polymerase chain reaction (qPCR). Forty-eight adult Sprague-Dawley rats were randomly divided into a normal control group (group A), streptozotocin-induced diabetic control group (group B), diabetic rats at 3mo injected with empty vector-transfected hUCMSCs (group C) or injected with LIF-hUCMSCs (group D). Four weeks after the intravitreal injection, analyses in all groups included retinal function using flash electroretinogram (F-ERG), retinal blood vessel examination of retinal flat mounts perfused with fluorescein isothiocyanate-dextran (FITC-dextran), and retinal structure examination of sections using hematoxylin and eosin staining. Expression levels of adiponectin (APN), high-sensitivity C-reactive protein (hs-CRP), and neurotrophin-4 (NT-4) in each group was detected using immunohistochemistry, PCR, Western blotting, and ELISA, respectively. RESULTS: A stable transgenic cell line of LIF-hUCMSCs was constructed. F-ERG and FITC-dextran examinations revealed no abnormalities of retinal structure and function in group A, severe damage of the retinal blood vessels and function in group B, and improved retinal structure and function in group C and especially group D. qPCR, ELISA, and Western blot analyses revealed progressively higher APN and NT-4 expression levels in groups B, C, and D than in group A. hs-CRP expression was significantly higher in group B than in groups A, C, and D, and was significantly higher in group C than in group D (P<0.05). CONCLUSION: LIF-hUCMSCs protect the retina of diabetic rats by upregulating APN and NT-4 expression and downregulating hs-CRP expression in the retina. CI - International Journal of Ophthalmology Press. FAU - Chen, Shan-Na AU - Chen SN AD - Clinical College of Ophthalmology, Tianjin Medical University, Tianjin 300070, China. AD - Tianjin Eye Hospital, Tianjin Eye Institute, Tianjin Key Lab of Ophthalmology and Visual Science, Tianjin 300020, China. AD - Xiamen Kehong Eye Hospital, Xiamen 361000, Fujian Province, China. FAU - Xu, Zhi-Gang AU - Xu ZG AD - Clinical College of Ophthalmology, Tianjin Medical University, Tianjin 300070, China. AD - Tianjin Eye Hospital, Tianjin Eye Institute, Tianjin Key Lab of Ophthalmology and Visual Science, Tianjin 300020, China. AD - Department of Ophthalmology, Baoan Central Hospital, Shenzhen 518000, China. FAU - Ma, Ying-Xue AU - Ma YX AD - Clinical College of Ophthalmology, Tianjin Medical University, Tianjin 300070, China. AD - Tianjin Eye Hospital, Tianjin Eye Institute, Tianjin Key Lab of Ophthalmology and Visual Science, Tianjin 300020, China. AD - Department of Ophthalmology, Tianjin First Central Hospital, Tianjin 300192, China. FAU - Chen, Song AU - Chen S AD - Department of Vitreous and Retinopathy, Tianjin Eye Hospital, Tianjin Eye Institute, Tianjin Key Lab of Ophthalmology and Visual Science, Tianjin 300020, China. FAU - He, Guang-Hui AU - He GH AD - Department of Vitreous and Retinopathy, Tianjin Eye Hospital, Tianjin Eye Institute, Tianjin Key Lab of Ophthalmology and Visual Science, Tianjin 300020, China. FAU - Han, Mei AU - Han M AD - Department of Ophthalmology, Tianjin Eye Hospital, Tianjin Eye Institute, Tianjin Key Lab of Ophthalmology and Visual Science, Tianjin 300020, China. FAU - Gao, Xiang AU - Gao X AD - Studying for a Doctor of Medicine Degree from Nankai University, Tianjin 300000, China. FAU - Wang, Jun-Hua AU - Wang JH AD - Department of Ophthalmology, Tianjin Eye Hospital, Tianjin Eye Institute, Tianjin Key Lab of Ophthalmology and Visual Science, Tianjin 300020, China. FAU - Wu, Bin AU - Wu B AD - Department of Ophthalmology, Tianjin Eye Hospital, Tianjin Eye Institute, Tianjin Key Lab of Ophthalmology and Visual Science, Tianjin 300020, China. FAU - Wang, Jian AU - Wang J AD - Department of Ophthalmology, Tianjin Eye Hospital, Tianjin Eye Institute, Tianjin Key Lab of Ophthalmology and Visual Science, Tianjin 300020, China. LA - eng PT - Journal Article DEP - 20211018 PL - China TA - Int J Ophthalmol JT - International journal of ophthalmology JID - 101553860 PMC - PMC8481991 OTO - NOTNLM OT - adiponectin OT - diabetic rats OT - diabetic retinopathy OT - high-sensitivity C-reactive protein OT - human umbilical cord mesenchymal stem cells OT - leukemia inhibitory factor OT - neurotrophin-4 EDAT- 2021/10/21 06:00 MHDA- 2021/10/21 06:01 PMCR- 2021/10/18 CRDT- 2021/10/20 06:46 PHST- 2021/04/21 00:00 [received] PHST- 2021/07/07 00:00 [accepted] PHST- 2021/10/20 06:46 [entrez] PHST- 2021/10/21 06:00 [pubmed] PHST- 2021/10/21 06:01 [medline] PHST- 2021/10/18 00:00 [pmc-release] AID - ijo-14-10-1508 [pii] AID - 10.18240/ijo.2021.10.06 [doi] PST - epublish SO - Int J Ophthalmol. 2021 Oct 18;14(10):1508-1517. doi: 10.18240/ijo.2021.10.06. eCollection 2021.