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Wang L, Xu A, Wang J, Fan G, Liu R, Wei L, Pei M. The effect and mechanism of Fushen Granule on gut microbiome in the prevention and treatment of chronic renal failure. Front Cell Infect Microbiol 2024; 13:1334213. [PMID: 38274729 PMCID: PMC10808756 DOI: 10.3389/fcimb.2023.1334213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Accepted: 12/14/2023] [Indexed: 01/27/2024] Open
Abstract
Background Fushen Granule is an improved granule based on the classic formula Fushen Formula, which is used for the treatment of peritoneal dialysis-related intestinal dysfunction in patients with end-stage renal disease. However, the effect and mechanism of this granule on the prevention and treatment of chronic renal failure have not been fully elucidated. Methods A 5/6 nephrectomy model of CRF was induced and Fushen Granule was administered at low and high doses to observe its effects on renal function, D-lactate, serum endotoxin, and intestinal-derived metabolic toxins. The 16SrRNA sequencing method was used to analyze the abundance and structure of the intestinal flora of CRF rats. A FMT assay was also used to evaluate the effects of transplantation of Fushen Granule fecal bacteria on renal-related functional parameters and metabolic toxins in CRF rats. Results Gavage administration of Fushen Granule at low and high doses down-regulated creatinine, urea nitrogen, 24-h urine microalbumin, D-lactate, endotoxin, and the intestinal-derived toxins indophenol sulphateand p-cresol sulphate in CRF rats. Compared with the sham-operated group in the same period, CRF rats had a decreased abundance of the firmicutes phylum and an increased abundance of the bacteroidetes phylum at the phylum level, and a decreasing trend of the lactobacillus genus at the genus level. Fushen Granule intervention increased the abundance of the firmicutes phylum, decreased the abundance of the bacteroidetes phylum, and increased the abundance of the lactobacillus genus. The transplantation of Fushen Granule fecal bacteria significantly reduced creatinine(Cr), blood urea nitrogen(Bun), uric acid(UA), 24-h urinary microalbumin, D-lactate, serum endotoxin, and enterogenic metabolic toxins in CRF rats. Compared with the sham-operated group, the transplantation of Fushen Granule fecal bacteria modulated the Firmicutes and Bacteroidetes phyla and the Lactobacillus genus. Conclusion Fushen Granule improved renal function and intestinal barrier function by regulating intestinal flora, inhibiting renal fibrosis, and delaying the progression of chronic renal failure.
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Affiliation(s)
- Lin Wang
- Nephrology Department, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
- Graduate School, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Ao Xu
- Nephrology Department, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
- Graduate School, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Jinxiang Wang
- Guangdong Provincial Key Laboratory of Digestive Cancer Research, Precision Medicine Center, Scientific Research Center, The Seventh Affiliated Hospital, Sun Yat-Sen University, Shenzhen, China
| | - Guorong Fan
- Nephrology Department, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
- Graduate School, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Ruiqi Liu
- Nephrology Department, Tianjin Academy of Traditional Chinese Medicine Affiliated Hospital, Tianjin, China
| | - Lijuan Wei
- Nephrology Department, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
- Graduate School, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Ming Pei
- Nephrology Department, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
- Graduate School, Tianjin University of Traditional Chinese Medicine, Tianjin, China
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Li J, Xing H, Lin W, Yu H, Yang B, Jiang C, Zhang J, Wu R, Ding F, Pei M, Yang H. Specific gut microbiome and metabolome changes in patients with continuous ambulatory peritoneal dialysis and comparison between patients with different dialysis vintages. Front Med (Lausanne) 2024; 10:1302352. [PMID: 38249961 PMCID: PMC10797064 DOI: 10.3389/fmed.2023.1302352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Accepted: 12/11/2023] [Indexed: 01/23/2024] Open
Abstract
Background In recent years, the role of gut microbiota and derived metabolites in renal disease has attracted more attention. It has been established that the gut microbiota is a potential target for medical interventions in renal disease including chronic kidney disease (CKD), acute kidney injury (AKI) and renal calculus. Emerging evidence has related dialysis treatment to the microbial composition and function of the intestines, and there are many reports related to HD, but few studies have been related to PD. Previous studies have found that PD patients have intestinal flora disturbances, so we speculate that intestinal flora and its metabolites may be the regulatory factors in long-term therapy of PD. And as far as we know, there have been no studies characterized the gut microbiota in PD patients of different dialysis vintages. Methods It is a cross-sectional study based on clinical data and biological samples of 72 patients with CAPD, 13 patients with ESRD and 13 healthy volunteers. The intestinal microecological characteristics of CAPD patients were comprehensively evaluated by combining the intestinal microflora structure, enterotoxin and receptor (serum LPS and LBP), intestinal barrier function index (serum D-Lactate), intestinal uremic toxin (serum IS, PCS, TMAO), fecal SCFAs and other multi-dimensional and multi-omics studies. Furthermore, the changes of intestinal microecology in CAPD patients of different dialysis vintages (≥ 3 and < 12 months, ≥ 12 and < 24 months, ≥ 24 and < 60 months, ≥ 60 months) were further explored, and the correlations between intestinal microecology indicators and some clinical indicators were analyzed. Fecal and serum samples were collected from PD patients (PD group, n = 72), ESRD patients (ESRD group, n = 13) and healthy volunteers (Normal group, n = 13). Fecal samples were subjected to microbiome (16S rDNA) and SCFA (GC-MS) analyses. Serum samples were subjected to LPS, LBP, D-lactate, IS, PCS, and TMAO (ELISA) analyses. Results The diversity and richness of intestinal flora in CAPD patients were lower than those in healthy people and ESRD patients, and the microflora structure was different. Anaerobes of Blautia and facultative anaerobes and aerobic bacteria with Bacilli and Lactobacillales those in Firmicutes are the main intestinal flora in CAPD patients. The abundance of Bacteroidaceae, Bacteroides, Faecalibacterium and other dominant bacteria in the intestinal tract of CAPD patients decreased. Proteobacteria, Enterobacteriaceae and Escherichia-Shigella increased their colonization (LDA > 4). In CAPD patients of different dialysis vintages, there was no significant change in the diversity and richness of microflora, and the microflora structure of PDC group was significantly different from that of PDD, which the abnormal expansion of enterobacter group was more prominent in PDC and the abundance of Bacteroides group was relatively higher in PDD. Intestinal barrier damage, intestinal uremic toxin accumulation and short-chain fatty acid reduction were observed in CAPD patients, such as the serum level of D-Lactate, PCS and TMAO were significantly higher than that in the Normal group (P < 0.05),and the fecal levels of BA and CA were significantly lower (P < 0.05). The intestinal microecological disorder of PDC group, while that of PDD group showed a better trend. Such as the PDC group had a significantly higher serum level of LPS, D-Lactate and TMAO (P < 0.01), and significantly lower serum level of LBP (P < 0.01), and lower fecal levels of AA and BA (P > 0.05) than the PDD group. Conclusion The intestinal microecology and metabolic system of CAPD patients had changes compared with healthy people and ESRD non-dialysis patients, and there were differences in CAPD patients with different dialysis vintages. PD patients on dialysis for more than 60 months showed a better trend in the intestinal microecology than patients with 24∼36 months, which suggested that the intestinal microecology of PD patients had a certain ability of self-regulation and remodeling under the management of standardized system and it is necessary to strengthen the monitoring of the intestinal status and the occurrence of related complications in PD patients on dialysis of 24∼36 months of dialysis vintage. It is initially considered that the mechanism of intestinal microecology is a potential target for intervention in the diagnosis and treatment of CAPD and incorporating intestinal microecosystem monitoring into the long-term management of CAPD patients is a new strategy.
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Affiliation(s)
- Jiaqi Li
- Department of Nephrology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Haitao Xing
- Department of Nephrology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Wei Lin
- Department of Nephrology, Xiamen Hospital of Traditional Chinese Medicine, Xiamen, China
| | - Hangxing Yu
- Chongqing Hospital of Traditional Chinese Medicine, Chongqing, China
| | - Bo Yang
- Department of Nephrology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Chen Jiang
- Department of Nephrology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Jin Zhang
- Department of Nephrology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Ruoxi Wu
- Department of Nephrology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Fengmei Ding
- Department of Nephrology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Ming Pei
- Department of Nephrology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Hongtao Yang
- Department of Nephrology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
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Hu S, Ren T, Yang B, Pei M, Gao X, Yang H, Chen H. In-Center Automated Peritoneal Dialysis: Clinical Features, Practice Patterns, and Patient Survival from a 6-Year Cohort Study in China. Kidney Blood Press Res 2023; 49:91-99. [PMID: 38061343 DOI: 10.1159/000535566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2022] [Accepted: 11/20/2023] [Indexed: 04/26/2024] Open
Abstract
INTRODUCTION In-center automated peritoneal dialysis (APD) has been more frequently adopted in clinical practice for maintenance PD patients in China. For a better understanding of its clinical uptake, this retrospective study reviewed incident PD patients for a period of 6 years, investigating the practice pattern of in-center APD, factors associated with the use of in-center APD, and report on the patient survival compared to the nonusers of APD among hospitalized PD patients. METHODS This was a cohort study of all incident PD patients who met the inclusion criteria from January 1, 2013 to September 30, 2018, and were followed until death, cessation of PD, loss to follow-up, or December 31, 2018. Clinical characteristics, patient outcomes, and detailed data on APD sessions were recorded. We used time-dependent Cox model to estimate the variables associated with the initiation of in-center APD, and marginal structural model through inverse probability weighting to adjust for time-varying APD use on the causal pathway to all-cause mortality. RESULTS A total of 651 subjects over 17,501 patient-months were enrolled. Of these, 633 (97.2%) PD patients were hospitalized at least once during follow-up, and 369 (56.7%) received in-center APD at a certain point, and the timing of APD use during the first 3 months, first year, and first 2 years since PD inception were 14.8%, 45.4%, and 74.8%, respectively. A total of 12,553 in-center APD sessions were recorded, where 85.9% used 4 bags of 5L-exchanges per prescription. Time-dependent Cox model showed that diabetes (hazard ratio (HR), 1.39, 95% confidence interval (CI), 1.09-1.76), urine output (HR 0.80, 95% CI: 0.70-0.92), serum albumin (HR 0.84, 95% CI: 0.72-0.99), hemoglobin (HR 0.88, 95% CI: 0.77-0.99), and Ca × P (HR 1.19, 95% CI: 1.06-1.35) were significantly associated with in-center APD use. Among all hospitalized PD patients, the estimated HR corresponding to the marginal causal effect of in-center APD use on all-cause mortality was 0.13 (95% CI: 0.05-0.31, p < 0.001). Starting APD after the first PD year was associated with a significantly lower risk of all-cause mortality (adjusted-HR 0.56, 95% CI: 0.33-0.95). CONCLUSIONS In-center APD is used intensively during the first 2 years of PD and is associated with certain clinical features. Overall, in-center APD use was associated with a lower risk of all-cause death when compared with non-use.
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Affiliation(s)
- Shouci Hu
- Department of Nephrology, The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Chinese Medicine), Hangzhou, China
- Department of Nephrology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, China
| | - Tong Ren
- Department of Nephrology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, China
| | - Bo Yang
- Department of Nephrology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, China
| | - Ming Pei
- Department of Nephrology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, China
| | - Xiangfu Gao
- Department of Nephrology, The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Chinese Medicine), Hangzhou, China
| | - Hongtao Yang
- Department of Nephrology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, China
| | - Hongbo Chen
- Department of Nephrology, The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Chinese Medicine), Hangzhou, China
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Pei YA, Mikaeiliagah E, Wang B, Zhang X, Pei M. The matrix microenvironment influences but does not dominate tissue-specific stem cell lineage differentiation. Mater Today Bio 2023; 23:100805. [PMID: 37766896 PMCID: PMC10519827 DOI: 10.1016/j.mtbio.2023.100805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Revised: 08/25/2023] [Accepted: 09/15/2023] [Indexed: 09/29/2023] Open
Abstract
Mesenchymal stem cells (MSCs) play a pivotal role in tissue engineering and regenerative medicine, with their clinical application often hindered by cell senescence during ex vivo expansion. Recent studies suggest that MSC-deposited decellularized extracellular matrix (dECM) offers a conducive microenvironment that fosters cell proliferation and accentuates stem cell differentiation. However, the ability of this matrix environment to govern lineage differentiation of tissue-specific stem cells remains ambiguous. This research employs human adipose-derived MSCs (ADSCs) and synovium-derived MSCs (SDSCs) as models for adipogenesis and chondrogenesis differentiation pathways, respectively. Genetically modified dECM (GMdECM), produced by SV40LT-transduced immortalized cells, was studied for its influence on cell differentiation. Both types of immortalized cells displayed a reduction in chondrogenic ability but an enhancement in adipogenic potential. ADSCs grown on ADSC-deposited dECM showed stable chondrogenic potential but increased adipogenic capacity; conversely, SDSCs expanded on SDSC-generated dECM displayed elevated chondrogenic capacity and diminished adipogenic potential. This cell-dependent response was confirmed through GMdECM expansion, with SDSCs showing enhanced chondrogenesis. However, ADSCs did not exhibit improved chondrogenic potential on GMdECM, suggesting that the matrix microenvironment does not dictate the final differentiation path of tissue-specific stem cells. Potential molecular mechanisms, such as elevated basement membrane protein expression in GMdECMs and dynamic TWIST1 expression during expansion and chondrogenic induction, may underpin the strong chondrogenic differentiation of GMdECM-expanded SDSCs.
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Affiliation(s)
- Yixuan Amy Pei
- Stem Cell and Tissue Engineering Laboratory, Department of Orthopaedics, West Virginia University, Morgantown, WV, USA
- Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Elmira Mikaeiliagah
- Stem Cell and Tissue Engineering Laboratory, Department of Orthopaedics, West Virginia University, Morgantown, WV, USA
- Department of Biology, Ardabil Branch, Islamic Azad University, Ardabil, Iran
| | - Bin Wang
- Stem Cell and Tissue Engineering Laboratory, Department of Orthopaedics, West Virginia University, Morgantown, WV, USA
- Department of Foot and Hand Surgery, Clinical Medical College of Yangzhou University, Subei People's Hospital of Jiangsu Province, Yangzhou, Jiangsu, China
| | - Xiaobing Zhang
- Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Peking Union Medical College, Tianjin, China
| | - Ming Pei
- Stem Cell and Tissue Engineering Laboratory, Department of Orthopaedics, West Virginia University, Morgantown, WV, USA
- WVU Cancer Institute, Robert C. Byrd Health Sciences Center, West Virginia University, Morgantown, WV, USA
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Hu X, Tian X, Yang C, Ling F, Liu H, Zhu X, Pei M, Yang H, Liu T, Xu Y, He F. Melatonin-loaded self-healing hydrogel targets mitochondrial energy metabolism and promotes annulus fibrosus regeneration. Mater Today Bio 2023; 23:100811. [PMID: 37810753 PMCID: PMC10550778 DOI: 10.1016/j.mtbio.2023.100811] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Revised: 08/21/2023] [Accepted: 09/21/2023] [Indexed: 10/10/2023] Open
Abstract
Intervertebral disc (IVD) herniation is a major cause of chronic low back pain and disability. The current nucleus pulposus (NP) discectomy effectively relieves pain symptoms, but the annulus fibrosus (AF) defects are left unrepaired. Tissue engineering approaches show promise in treating AF injury and IVD degeneration; however, the presence of an inflammatory milieu at the injury site hinders the mitochondrial energy metabolism of AF cells, resulting in a lack of AF regeneration. In this study, we fabricated a dynamic self-healing hydrogel loaded with melatonin (an endocrine hormone well-known for its antioxidant and anti-inflammatory properties) and investigate whether melatonin-loaded hydrogel could promote AF defect repair by rescuing the matrix synthesis and energy metabolism of AF cells. The protective effects of melatonin on matrix components (e.g. type I and II collagen and aggrecan) in AF cells were observed in the presence of interleukin (IL)-1β. Additionally, melatonin was found to activate the nuclear factor erythroid 2-related factor signaling pathway, thereby safeguarding the mitochondrial function of AF cells from IL-1β, as evidenced by the increased level of adenosine triphosphate, mitochondrial membrane potential, and respiratory chain factor expression. The incorporation of melatonin into a self-healing hydrogel based on thiolated gelatin and β-cyclodextrin was proposed as a means of promoting AF regeneration. The successful implantation of melatonin-loaded hydrogel has been shown to facilitate in situ regeneration of AF tissue, thereby impeding IVD degeneration by preserving the hydration of nucleus pulposus in a rat box-cut IVD defect model. These findings offer compelling evidence that the development of a melatonin-loaded dynamic self-healing hydrogel can promote the mitochondrial functions of AF cells and represents a promising strategy for IVD regeneration.
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Affiliation(s)
- Xiayu Hu
- Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Soochow University, Suzhou 215006, China
- Orthopaedic Institute, Suzhou Medical College, Soochow University, Suzhou 215000, China
| | - Xin Tian
- Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Soochow University, Suzhou 215006, China
- Orthopaedic Institute, Suzhou Medical College, Soochow University, Suzhou 215000, China
| | - Chunju Yang
- Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Soochow University, Suzhou 215006, China
- Orthopaedic Institute, Suzhou Medical College, Soochow University, Suzhou 215000, China
- Suzhou Medical College of Soochow University, Suzhou, 215123, China
| | - Feng Ling
- Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Soochow University, Suzhou 215006, China
- Orthopaedic Institute, Suzhou Medical College, Soochow University, Suzhou 215000, China
- Department of Orthopaedics,the Affiliated Taizhou People's Hospital of Nanjing Medical University, Taizhou, 225300, China
| | - Hao Liu
- Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Soochow University, Suzhou 215006, China
| | - Xuesong Zhu
- Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Soochow University, Suzhou 215006, China
- Orthopaedic Institute, Suzhou Medical College, Soochow University, Suzhou 215000, China
| | - Ming Pei
- Stem Cell and Tissue Engineering Laboratory, Department of Orthopaedics and Division of Exercise Physiology, West Virginia University, Morgantown, WV 26506, USA
| | - Huilin Yang
- Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Soochow University, Suzhou 215006, China
- Orthopaedic Institute, Suzhou Medical College, Soochow University, Suzhou 215000, China
| | - Tao Liu
- Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Soochow University, Suzhou 215006, China
| | - Yong Xu
- Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Soochow University, Suzhou 215006, China
- Orthopaedic Institute, Suzhou Medical College, Soochow University, Suzhou 215000, China
| | - Fan He
- Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Soochow University, Suzhou 215006, China
- Orthopaedic Institute, Suzhou Medical College, Soochow University, Suzhou 215000, China
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Ma SX, Li XJ, Duan TT, Pei M, Zou L, Yu XY, Zhao YY. Moshen granule ameliorates membranous nephropathy by regulating NF-ƙB/Nrf2 pathways via aryl hydrocarbon receptor signalling. Heliyon 2023; 9:e20019. [PMID: 37809643 PMCID: PMC10559749 DOI: 10.1016/j.heliyon.2023.e20019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 08/18/2023] [Accepted: 09/08/2023] [Indexed: 10/10/2023] Open
Abstract
Considerable achievements were realized in illuminating underlying pathological mechanisms of patients with idiopathic membranous nephropathy (IMN). Although IMN patients are well diagnosed before they reach renal failure, no currently available drug intervention is effective in halting IMN progression. In this study, we assess Moshen granule (MSG) effect on IMN patients and cationic bovine serum albumin (CBSA)-induced rats. Increasing studies has indicated that activation of aryl hydrocarbon receptor (AHR) was related to oxidative stress and inflammation. We further determine MSG effect on AHR, nuclear factor ƙB (NF-ƙB) and nuclear factor erythroid 2-related factor 2 (Nrf2) in the CBSA-induced rats. MSG markedly reduces proteinuria and improves kidney function in both IMN patients and rats induced by CBSA. MSG markedly inhibits increased mRNA expressions of intrarenal AHR and its four downstream target genes including CYP1A1, CYP1A2, CYP1B1 and COX-2 compared with untreated CBSA-induced rats. This is accompanied by markedly downregulated protein expressions of p-IƙBα and NF-ƙB p65 and its downstream gene products including MCP-1, COX-2, 12-LOX, iNOS, p47phox and p67phox, while markedly preserves protein expressions of Nrf2 and its downstream gene products including catalase, HO-1, GCLM, GCLC, MnSOD and NQO1 in the kidney tissues. These data suggests MSG blunts podocyte damage through inhibiting activation of NF-ƙB/Nrf2 pathway via AHR signaling. This finding may provide a promising therapy for treatment of IMN through oxidative stress and inflammation.
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Affiliation(s)
- Shi-Xing Ma
- Department of Nephrology, Baoji Central Hospital, Baoji, Shaanxi 721008, China
| | - Xiao-Jun Li
- Department of Nephrology, Integrated Hospital of Traditional Chinese Medicine, Southern Medical University, Guangzhou, Guangdong 510315, China
| | - Ting-Ting Duan
- Guangdong Nephrotic Drug Engineering Technology Research Center, Institute of Consun Co. for Chinese Medicine in Kidney Diseases, Guangdong Consun Pharmaceutical Group, Guangzhou, Guangdong 510530, China
| | - Ming Pei
- Department of Nephrology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin 300073, China
| | - Liang Zou
- School of Food and Bioengineering, Chengdu University, Chengdu, Sichuan 610106, China
| | - Xiao-Yong Yu
- Department of Nephrology, Shaanxi Traditional Chinese Medicine Hospital, Xi'an, Shaanxi 710003, China
| | - Ying-Yong Zhao
- School of Food and Bioengineering, Chengdu University, Chengdu, Sichuan 610106, China
- School of Pharmacy, Zhejiang Chinese Medical University, Hangzhou, Zhejiang 310053, China
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Li Z, Pei M, Zhang J, Liu N, Wang J, Zou D. A study to characterize the mechanical properties and material constitution of adult descending thoracic aorta based on uniaxial tensile test and digital image correlation. Front Bioeng Biotechnol 2023; 11:1178199. [PMID: 37388776 PMCID: PMC10306407 DOI: 10.3389/fbioe.2023.1178199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Accepted: 06/05/2023] [Indexed: 07/01/2023] Open
Abstract
The mechanical properties and material constitution of the aorta are important in forensic science and clinical medicine. Existing studies on the material constitution of the aorta do not satisfy the practical requirements of forensic and clinical medicine, as the reported failure stress and failure strain values for human aortic materials have a high dispersion. In this study, descending thoracic aortas were obtained from 50 cadavers (dead within 24 h) free of thoracic aortic disease, aged from 27 to 86 years old, which were divided into six age groups. The descending thoracic aorta was divided into proximal and distal segments. A customized 4-mm cutter was used to punch a circumferential and an axial dog-bone-shaped specimen from each segment; the aortic ostia and calcification were avoided. Instron 8,874 and digital image correlation were used to perform a uniaxial tensile test on each sample. Four samples from each descending thoracic aorta produced ideal stress-strain curves. All parameter-fitting regressions from the selected mathematical model converged, and the best-fit parameters of each sample were obtained. The elastic modulus of collagen fiber, failure stress, and the strain showed a decreasing trend with age, while the elastic modulus of elastic fiber showed an increasing trend with age. The elastic modulus of collagen fiber, failure stress, and strain of circumferential tensile were all greater than those for axial tensile. There was no statistical difference in model parameters and physiological moduli between the proximal and distal segments. The failure stress and strain in the proximal circumferential, distal circumferential, and distal axial tensile were all greater for the male group than for the female group. Finally, the Fung-type hyperelastic constitutive equations were fitted for the different segments in different age groups.
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Affiliation(s)
- Zhengdong Li
- Shanghai Key Laboratory of Forensic Medicine, Key Laboratory of Forensic Science, Ministry of Justice, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai, China
| | - Ming Pei
- Institute of Forensic Science, Xuzhou Public Security Bureau, Xuzhou, Jiangsu, China
| | - Jianhua Zhang
- Shanghai Key Laboratory of Forensic Medicine, Key Laboratory of Forensic Science, Ministry of Justice, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai, China
| | - Ningguo Liu
- Shanghai Key Laboratory of Forensic Medicine, Key Laboratory of Forensic Science, Ministry of Justice, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai, China
| | - Jinming Wang
- Shanghai Key Laboratory of Forensic Medicine, Key Laboratory of Forensic Science, Ministry of Justice, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai, China
| | - Donghua Zou
- Shanghai Key Laboratory of Forensic Medicine, Key Laboratory of Forensic Science, Ministry of Justice, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai, China
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Wang YN, Miao H, Hua MR, Yang JZ, Pei M, Yu HX, Wei LJ, Zou L, Zhang YM, Cao G, Zhao YY. Moshen granule ameliorates membranous nephropathy by blocking intrarenal renin-angiotensin system signalling via the Wnt1/β-catenin pathway. Phytomedicine 2023; 114:154763. [PMID: 37001295 DOI: 10.1016/j.phymed.2023.154763] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 03/01/2023] [Accepted: 03/12/2023] [Indexed: 06/19/2023]
Abstract
BACKGROUND Membranous nephropathy (MN) is one of the cardinal causes of nephrotic syndrome in adults, but an adequate treatment regimen is lacking. PURPOSE We assessed the effect of Moshen granule (MSG) on patients with MN and cationic bovine serum albumin (CBSA)-induced rats. We further identified the bioactive components of MSG and revealed the underlying molecular mechanism of its renoprotective effects. METHODS We determined the effect of MSG on patients with MN and CBSA-induced rats and its components on podocyte injury in zymosan-activated serum (ZAS)-elicited podocytes and revealed their regulatory mechanism on the Wnt/β-catenin/renin-angiotensin system (RAS) signalling axis. RESULTS MSG treatment improved renal function and reduced proteinuria in MN patients and significantly reduced proteinuria and preserved the protein expression of podocin, nephrin, podocalyxin and synaptopodin in CBSA-induced MN rats. Mechanistically, MSG treatment significantly inhibited the protein expression of angiotensinogen, angiotensin converting enzyme and angiotensin II type 1 receptor, which was accompanied by inhibition of the protein expression of Wnt1 and β-catenin and its downstream gene products, including Snail1, Twist, matrix metalloproteinase-7, plasminogen activator inhibitor-1 and fibroblast-specific protein 1, in CBSA-induced MN rats. We further identified 81 compounds, including astragaloside IV (AGS), calycosin, barleriside A and geniposidic acid, that preserve the podocyte-specific protein expression in ZAS-induced podocytes. Among these four compounds, AGS exhibited the strongest inhibitory effects on podocyte protein expression. AGS treatment significantly inhibited the protein expression of RAS components and Wnt1 and β-catenin and its downstream gene products in ZAS-induced podocytes. In contrast, the inhibitory effect of AGS on podocyte-specific proteins, β-catenin downstream gene products and RAS components was partially abolished in ZAS-induced podocytes treated with ICG-001 and β-catenin siRNA. CONCLUSION This study first demonstrates that AGS mitigates podocyte injury by inhibiting the activation of RAS signalling via the Wnt1/β-catenin pathway by both pharmacological and genetic methods. Therefore, AGS might be considered a new β-catenin inhibitor that inhibits the Wnt1/β-catenin pathway to retard MN in patients.
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Affiliation(s)
- Yan-Ni Wang
- School of Pharmacy, Zhejiang Chinese Medical University, No. 548 Binwen Road, Hangzhou, Zhejiang 310053, China
| | - Hua Miao
- School of Pharmacy, Zhejiang Chinese Medical University, No. 548 Binwen Road, Hangzhou, Zhejiang 310053, China
| | - Meng-Ru Hua
- School of Pharmacy, Zhejiang Chinese Medical University, No. 548 Binwen Road, Hangzhou, Zhejiang 310053, China
| | - Jun-Zheng Yang
- Guangdong Nephrotic Drug Engineering Technology Research Center, Guangdong Consun Pharmaceutical Group, Institute of Consun Co. for Chinese Medicine in Kidney Diseases, No. 71 Dongpeng avenue, Guangzhou, Guangdong 510530, China
| | - Ming Pei
- Department of Nephrology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, No. 88 Changling Road, Tianjin 300073, China
| | - Hang-Xing Yu
- Department of Nephrology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, No. 88 Changling Road, Tianjin 300073, China
| | - Li-Juan Wei
- Department of Nephrology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, No. 88 Changling Road, Tianjin 300073, China
| | - Liang Zou
- School of Food and Bioengineering, Chengdu University, No. 2025 Chengluo Avenue, Chengdu, Sichuan 610106, China
| | - Ya-Mei Zhang
- Key disciplines of clinical pharmacy, Clinical Genetics Laboratory, Affiliated Hospital & Clinical Medical College of Chengdu University, No. 82 The Second Section of North 2nd Ring Road, Chengdu, Sichuan 610081, China
| | - Gang Cao
- School of Pharmacy, Zhejiang Chinese Medical University, No. 548 Binwen Road, Hangzhou, Zhejiang 310053, China.
| | - Ying-Yong Zhao
- School of Pharmacy, Zhejiang Chinese Medical University, No. 548 Binwen Road, Hangzhou, Zhejiang 310053, China; Key disciplines of clinical pharmacy, Clinical Genetics Laboratory, Affiliated Hospital & Clinical Medical College of Chengdu University, No. 82 The Second Section of North 2nd Ring Road, Chengdu, Sichuan 610081, China.
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9
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Zhou T, Zhang W, Cao Q, Zhang K, Ban X, Pei M, Wang J. Unveiling the In Situ and Solvent Polymerization Engineering for Highly Efficient and Flexible Thermally Activated Delayed Fluorescence Organic Light-Emitting Diodes. ACS Appl Mater Interfaces 2023. [PMID: 37197999 DOI: 10.1021/acsami.3c02412] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
Thermally activated delayed fluorescence (TADF) polymer has great potential for the construction of flexible solution-processed organic light-emitting diodes (OLEDs). However, the relationship between polymerization engineering and device functions has rarely been reported. Here, two novel TADF polymers, P-Ph4CzCN and P-Ph5CzCN, with a small energy gap between the first excited singlet and triplet states (ΔEST; <0.16 eV) were newly developed by both solvent and in situ polymerization of a styrene component. Detailed device performance testing indicates that both polymerization strategies ensure that the TADF polymer achieves comparable high efficiencies in commonly rigid devices, and the maximum external quantum efficiencies (EQEmax) were 11.9%, 14.1%, and 16.2% for blue, green, and white OLEDs, respectively. Although in situ polymerization provides a simplified device fabrication process, which avoids the complicated synthesis and purification of the polymer, the inevitable high-temperature annealing makes it fail in a plastic substrate device. In contrast, P-Ph5CzCN achieved by solvent polymerization enables the successful fabrication of a flexible device on a poly(ethylene terephthalate) (PET) substrate, which was the first reported flexible OLED based on a TADF polymer. This work provides a strong guideline for the simple fabrication of TADF polymer devices and the application of TADF polymer materials in OLED flexible panels and flexible lighting.
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Affiliation(s)
- Tao Zhou
- School of Environmental and Chemical Engineering, Jiangsu Key Laboratory of Function Control Technology for Advanced Materials, Jiangsu Ocean University, Lianyungang, Jiangsu 222005, China
| | - Wenhao Zhang
- School of Environmental and Chemical Engineering, Jiangsu Key Laboratory of Function Control Technology for Advanced Materials, Jiangsu Ocean University, Lianyungang, Jiangsu 222005, China
| | - Qingpeng Cao
- School of Environmental and Chemical Engineering, Jiangsu Key Laboratory of Function Control Technology for Advanced Materials, Jiangsu Ocean University, Lianyungang, Jiangsu 222005, China
| | - Kaizhi Zhang
- School of Environmental and Chemical Engineering, Jiangsu Key Laboratory of Function Control Technology for Advanced Materials, Jiangsu Ocean University, Lianyungang, Jiangsu 222005, China
| | - Xinxin Ban
- School of Environmental and Chemical Engineering, Jiangsu Key Laboratory of Function Control Technology for Advanced Materials, Jiangsu Ocean University, Lianyungang, Jiangsu 222005, China
| | - Ming Pei
- School of Environmental and Chemical Engineering, Jiangsu Key Laboratory of Function Control Technology for Advanced Materials, Jiangsu Ocean University, Lianyungang, Jiangsu 222005, China
| | - Jiayi Wang
- School of Environmental and Chemical Engineering, Jiangsu Key Laboratory of Function Control Technology for Advanced Materials, Jiangsu Ocean University, Lianyungang, Jiangsu 222005, China
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Pei M, Xu D, Wu L. Editorial: Bone and Cartilage Diseases - The Role and Potential of Natural Products, Volume II. Front Pharmacol 2023; 14:1194875. [PMID: 37201019 PMCID: PMC10185899 DOI: 10.3389/fphar.2023.1194875] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Accepted: 04/21/2023] [Indexed: 05/20/2023] Open
Affiliation(s)
- Ming Pei
- Stem Cell and Tissue Engineering Laboratory, Department of Orthopaedics, West Virginia University, Morgantown, WV, United States
| | - Daohua Xu
- Guangdong Key Laboratory for Research and Development of Natural Drugs, School of Pharmacy, Guangdong Medical University, Dongguan, China
| | - Longhuo Wu
- College of Pharmacy, Gannan Medical University, Ganzhou, China
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11
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Patel J, Chen S, Katzmeyer T, Pei YA, Pei M. Sex-dependent variation in cartilage adaptation: from degeneration to regeneration. Biol Sex Differ 2023; 14:17. [PMID: 37024929 PMCID: PMC10077643 DOI: 10.1186/s13293-023-00500-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Accepted: 03/20/2023] [Indexed: 04/08/2023] Open
Abstract
Despite acknowledgement in the scientific community of sex-based differences in cartilage biology, the implications for study design remain unclear, with many studies continuing to arbitrarily assign demographics. Clinically, it has been well-established that males and females differ in cartilage degeneration, and accumulating evidence points to the importance of sex differences in the field of cartilage repair. However, a comprehensive review of the mechanisms behind this trend and the influence of sex on cartilage regeneration has not yet been presented. This paper aims to summarize current findings regarding sex-dependent variation in knee anatomy, sex hormones' effect on cartilage, and cartilaginous degeneration and regeneration, with a focus on stem cell therapies. Findings suggest that the stem cells themselves, as well as their surrounding microenvironment, contribute to sex-based differences. Accordingly, this paper underscores the contribution of both stem cell donor and recipient sex to sex-related differences in treatment efficacy. Cartilage regeneration is a field that needs more research to optimize strategies for better clinical results; taking sex into account could be a big factor in developing more effective and personalized treatments. The compilation of this information emphasizes the importance of investing further research in sex differences in cartilage biology.
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Affiliation(s)
- Jhanvee Patel
- Stem Cell and Tissue Engineering Laboratory, Department of Orthopaedics, West Virginia University, 64 Medical Center Drive, PO Box 9196, Morgantown, WV, 26506-9196, USA
| | - Song Chen
- Department of Orthopaedics, The General Hospital of Western Theater Command, Chengdu, 610083, Sichuan, China
| | - Torey Katzmeyer
- Stem Cell and Tissue Engineering Laboratory, Department of Orthopaedics, West Virginia University, 64 Medical Center Drive, PO Box 9196, Morgantown, WV, 26506-9196, USA
| | - Yixuan Amy Pei
- Stem Cell and Tissue Engineering Laboratory, Department of Orthopaedics, West Virginia University, 64 Medical Center Drive, PO Box 9196, Morgantown, WV, 26506-9196, USA
- Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Ming Pei
- Stem Cell and Tissue Engineering Laboratory, Department of Orthopaedics, West Virginia University, 64 Medical Center Drive, PO Box 9196, Morgantown, WV, 26506-9196, USA.
- WVU Cancer Institute, Robert C. Byrd Health Sciences Center, West Virginia University, Morgantown, WV, 26506, USA.
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12
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Hu S, Ji Y, Pei M, Yang B, Chen H, Gao X, He Q, Yang H, Ye L. The impact of long-term exposure to ambient air pollution in patients undergoing peritoneal dialysis: A cohort study in China. Chemosphere 2023; 316:137871. [PMID: 36646184 DOI: 10.1016/j.chemosphere.2023.137871] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Revised: 12/04/2022] [Accepted: 01/12/2023] [Indexed: 06/17/2023]
Abstract
There is increasing evidence for an association of air pollutants and the incidence of chronic kidney disease, and the progression to end stage kidney disease (ESKD). Despite the global expansion of peritoneal dialysis (PD), the impact of environmental and climatic factors in PD patients has not been studied in detail. We aimed to assess the association of long-term residential exposure to air pollutants, with patient survival and incidence of hospitalizations. This was a cohort study of all prevalent ESKD patients who were stable on PD therapy for more than 90 days in our PD center from 2013/01/01 to 2018/12/31. The enrolled patients were followed until death, cessation of PD, loss to follow-up, or 2018/12/31. Time-varying pollutant exposures were modeled as the key time-dependent variables. We used time-dependent Cox model to evaluate the risk of mortality and hospitalizations associated with air pollutant exposures adjusted for potential confounders. A total of 886 subjects who meets inclusion criteria with 27,024 patient-months were modeled. Over a mean follow-up of 30.5 ± 21.3 months, we ascertained 246 cases of death and 2611 cases of hospital admission. Significant hazard ratios (HRs) were observed for all four air pollutants including PM2.5 (hazard ratio [HR] 1.27, 95% confidence interval [95%CI] 1.05-1.54), PM10 (HR 1.31, 95%CI 1.04-1.65), NO2 (HR 1.45, 95%CI 1.02-2.06), and SO2 (HR 1.20, 95%CI 1.10-1.32) in fully adjusted model, corresponding to per interquartile range μg/m3 increase of air pollutant concentrations for mortality, and non-significant HRs for incidence of hospitalization. Non-linear associations with respect to different air pollutants were observed in models for all-cause mortality and recurrent hospitalization. The estimates for mortality were significantly higher in certain groups of patients. Our findings suggest long-term exposure to ambient air pollution was associated with higher risk of all-cause mortality in PD patients, but the association with incidence of hospitalizations was less clear.
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Affiliation(s)
- Shouci Hu
- Division of Nephrology, First Affiliated Teaching Hospital, Tianjin University of Traditional Chinese Medicine, Tianjin, China; Department of Nephrology, The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Chinese Medicine), Hangzhou, China
| | - Yue Ji
- Division of Nephrology, First Affiliated Teaching Hospital, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Ming Pei
- Division of Nephrology, First Affiliated Teaching Hospital, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Bo Yang
- Division of Nephrology, First Affiliated Teaching Hospital, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Hongbo Chen
- Department of Nephrology, The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Chinese Medicine), Hangzhou, China
| | - Xiangfu Gao
- Department of Nephrology, The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Chinese Medicine), Hangzhou, China
| | - Qiang He
- Department of Nephrology, The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Chinese Medicine), Hangzhou, China
| | - Hongtao Yang
- Division of Nephrology, First Affiliated Teaching Hospital, Tianjin University of Traditional Chinese Medicine, Tianjin, China.
| | - Liqing Ye
- Department of Nephrology, The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Chinese Medicine), Hangzhou, China.
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Hu S, Ji Y, Pei M, Yang B, Chen H, Gao X, He Q, Yang H, Ye L. Corrigendum to 'The impact of long-term exposure to ambient air pollution in patients undergoing peritoneal dialysis: A cohort study in China' [Chemosphere 316 (2023) Start page-End page/137871]. Chemosphere 2023; 318:137976. [PMID: 36731226 DOI: 10.1016/j.chemosphere.2023.137976] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Affiliation(s)
- Shouci Hu
- Department of Nephrology, The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Chinese Medicine), Hangzhou, China; Department of Nephrology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, China
| | - Yue Ji
- Department of Nephrology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, China
| | - Ming Pei
- Department of Nephrology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, China
| | - Bo Yang
- Department of Nephrology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, China
| | - Hongbo Chen
- Department of Nephrology, The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Chinese Medicine), Hangzhou, China
| | - Xiangfu Gao
- Department of Nephrology, The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Chinese Medicine), Hangzhou, China
| | - Qiang He
- Department of Nephrology, The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Chinese Medicine), Hangzhou, China
| | - Hongtao Yang
- Department of Nephrology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, China.
| | - Liqing Ye
- Department of Nephrology, The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Chinese Medicine), Hangzhou, China.
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Yang B, Yin H, Wang J, Gan J, Li J, Han R, Pei M, Song L, Yang H. A metabolic biomarker panel of restless legs syndrome in peritoneal dialysis patients. Metabolomics 2022; 18:79. [PMID: 36260187 DOI: 10.1007/s11306-022-01938-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/09/2022] [Accepted: 09/27/2022] [Indexed: 12/29/2022]
Abstract
BACKGROUND Restless legs syndrome (RLS) is a neuromotor disorder, and dialysis patients are more likely to develop RLS. RLS often causes sleep disorders, anxiety and depression in patients. It will increase the risk of death and severely affect the life of patients. At present, RLS has not received enough recognition and attention, and the misdiagnosis rate can reach more than 10%. METHODS The discovery set selected 30 peritoneal dialysis (PD) patients and 27 peritoneal dialysis patients with RLS (PD-RLS). A metabolomics method based on ultra performance liquid chromatography tandem quadrupole time-of-flight mass spectrometric method (UPLC-Q-TOF/MS) was used to analyze the differential metabolites of the two groups. 51 PD patients and 51 PD-RLS patients were included in the validation set. The receiver operating characteristic (ROC) analysis was used to evaluate the early diagnostic biomarkers, and the correlation between the differential metabolites and laboratory test indexes was analyzed to explore the biological function of the differential metabolites. RESULTS Through the integrated analysis, four metabolites can be used as markers for the diagnosis of PD-RLS, including Hippuric acid, Phenylacetylglutamine, N,N,N-Trimethyl-L-alanyl-L-proline betaine and Threonic acid. Through ROC analysis, it is found that they can be used as a metabolic biomarker panel, and the area under the curve of this combination is more than 0.9, indicating that the panel has good diagnostic and predictive ability. CONCLUSION Metabolomics based on UPLC-Q-TOF/MS technology can effectively identify the potential biomarkers, and provide a theoretical basis for the early diagnosis, prevention and treatment on PD-RLS.
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Affiliation(s)
- Bo Yang
- Department of Nephrology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, China
| | - Hongqing Yin
- School of Traditional Chinese Materia Medica, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, China
| | - Jianwei Wang
- Department of Nephrology, Qian'an Traditional Chinese Medicine Hospital, Tianjin, 301617, He Bei, China
| | - Jiali Gan
- Department of Pathology, School of Integrative Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, China
| | - Jingfang Li
- School of Traditional Chinese Materia Medica, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, China
| | - Rui Han
- School of Traditional Chinese Materia Medica, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, China
| | - Ming Pei
- Department of Nephrology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, China
| | - Lili Song
- School of Traditional Chinese Materia Medica, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, China.
| | - Hongtao Yang
- Department of Nephrology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, China.
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Yu HX, Feng Z, Lin W, Yang K, Liu RQ, Li JQ, Liu XY, Pei M, Yang HT. Ongoing Clinical Trials in Aging-Related Tissue Fibrosis and New Findings Related to AhR Pathways. Aging Dis 2022; 13:732-752. [PMID: 35656117 PMCID: PMC9116921 DOI: 10.14336/ad.2021.1105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Accepted: 11/05/2021] [Indexed: 11/06/2022] Open
Abstract
Fibrosis is a pathological manifestation of wound healing that replaces dead/damaged tissue with collagen-rich scar tissue to maintain homeostasis, and complications from fibrosis contribute to nearly half of all deaths in the industrialized world. Ageing is closely associated with a progressive decline in organ function, and the prevalence of tissue fibrosis dramatically increases with age. Despite the heavy clinical and economic burden of organ fibrosis as the population ages, to date, there is a paucity of therapeutic strategies that are specifically designed to slow fibrosis. Aryl hydrocarbon receptor (AhR) is an environment-sensing transcription factor that exacerbates aging phenotypes in different tissues that has been brought back into the spotlight again with economic development since AhR could interact with persistent organic pollutants derived from incomplete waste combustion. In addition, gut microbiota dysbiosis plays a pivotal role in the pathogenesis of numerous diseases, and microbiota-associated tryptophan metabolites are dedicated contributors to fibrogenesis by acting as AhR ligands. Therefore, a better understanding of the effects of tryptophan metabolites on fibrosis modulation through AhR may facilitate the exploitation of new therapeutic avenues for patients with organ fibrosis. In this review, we primarily focus on how tryptophan-derived metabolites are involved in renal fibrosis, idiopathic pulmonary fibrosis, hepatic fibrosis and cardiac fibrosis. Moreover, a series of ongoing clinical trials are highlighted.
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Affiliation(s)
- Hang-Xing Yu
- 1Department of Nephrology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China.,2National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, China
| | - Zhe Feng
- 3Shaanxi University of Chinese Medicine, Xianyang, Shaanxi, China
| | - Wei Lin
- 1Department of Nephrology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China.,2National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, China
| | - Kang Yang
- 4Kidney Disease Treatment Center, The first affiliated hospital of Henan university of CM, Zhengzhou, Henan, China
| | - Rui-Qi Liu
- 1Department of Nephrology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China.,2National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, China
| | - Jia-Qi Li
- 1Department of Nephrology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China.,2National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, China
| | - Xin-Yue Liu
- 1Department of Nephrology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China.,2National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, China
| | - Ming Pei
- 1Department of Nephrology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China.,2National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, China
| | - Hong-Tao Yang
- 1Department of Nephrology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China.,2National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, China
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Zhou S, Chen S, Pei YA, Pei M. Nidogen: A matrix protein with potential roles in musculoskeletal tissue regeneration. Genes Dis 2022; 9:598-609. [PMID: 35782975 PMCID: PMC9243345 DOI: 10.1016/j.gendis.2021.03.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Revised: 03/03/2021] [Accepted: 03/24/2021] [Indexed: 12/14/2022] Open
Abstract
Basement membrane proteins are known to guide cell structures, differentiation, and tissue repair. Although there is a wealth of knowledge on the functions of laminins, perlecan, and type IV collagen in maintaining tissue homeostasis, not much is known about nidogen. As a key molecule in the basement membrane, nidogen contributes to the formation of a delicate microenvironment that proves necessary for stem cell lineage-specific differentiation. In this review, the expression of nidogen is delineated at both cellular and tissue levels from embryonic to adult stages of development; the effect of nidogens is also summarized in the context of musculoskeletal development and regeneration, including but not limited to adipogenesis, angiogenesis, chondrogenesis, myogenesis, and neurogenesis. Furthermore, potential mechanisms underlying the role of nidogens in stem cell-based tissue regeneration are also discussed. This concise review is expected to facilitate our existing understanding and utilization of nidogen in tissue engineering and regeneration.
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Ban X, Qiu S, Cao Q, Zhang K, Zhou T, Xu H, Pei M, Ge F, Tong Z, Jiang W. Exciplex polymer with strong AIE property for constructing fully-solution-processed organic light-emitting diodes with 100-folds efficiency improvement comparing to physical blend exciplex. Polym Chem 2022. [DOI: 10.1039/d2py01306a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Transferring exciplex to polymeric system will be a productive concept to unify the two functional components for getting a powerful union. Here, we demonstrate that exciplex polymer can be constructed...
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Pei YA, Pei M. Hypoxia Modulates Regenerative Potential of Fetal Stem Cells. Appl Sci (Basel) 2022; 12:363. [PMID: 36660242 PMCID: PMC9846719 DOI: 10.3390/app12010363] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Adult mesenchymal stem cells (MSCs) are prone to senescence, which limits the scope of their use in tissue engineering and regeneration and increases the likelihood of post-implantation failure. As a robust alternative cell source, fetal stem cells can prevent an immune reaction and senescence. However, few studies use this cell type. In this study, we sought to characterize fetal cells' regenerative potential in hypoxic conditions. Specifically, we examined whether hypoxic exposure during the expansion and differentiation phases would affect human fetal nucleus pulposus cell (NPC) and fetal synovium-derived stem cell (SDSC) plasticity and three-lineage differentiation potential. We concluded that fetal NPCs represent the most promising cell source for chondrogenic differentiation, as they are more responsive and display stronger phenotypic stability, particularly when expanded and differentiated in hypoxic conditions. Fetal SDSCs have less potential for chondrogenic differentiation compared to their adult counterpart. This study also indicated that fetal SDSCs exhibit a discrepancy in adipogenic and osteogenic differentiation in response to hypoxia.
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Affiliation(s)
- Yixuan Amy Pei
- Stem Cell and Tissue Engineering Laboratory, Department of Orthopaedics, West Virginia University, Morgantown, WV 26506, USA
- Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Ming Pei
- Stem Cell and Tissue Engineering Laboratory, Department of Orthopaedics, West Virginia University, Morgantown, WV 26506, USA
- WVU Cancer Institute, West Virginia University, Morgantown, WV 26506, USA
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Wang Y, Pei YA, Sun Y, Zhou S, Zhang XB, Pei M. Stem cells immortalized by hTERT perform differently from those immortalized by SV40LT in proliferation, differentiation, and reconstruction of matrix microenvironment. Acta Biomater 2021; 136:184-198. [PMID: 34551328 PMCID: PMC8627502 DOI: 10.1016/j.actbio.2021.09.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Revised: 09/13/2021] [Accepted: 09/14/2021] [Indexed: 11/22/2022]
Abstract
Although matrix microenvironment has the potential to improve expanded stem cell proliferation and differentiation capacity, decellularized extracellular matrix (dECM) deposited by senescent cells does not contribute to the rejuvenation of adult stem cells, which has become a barrier to personalized stem cell therapy. Genetic modification is an effective strategy to protect cells from senescence but it carries the increased risk of malignant transformation and genetic instability. In this study, lentivirus carrying either human telomerase reverse transcriptase (hTERT) or simian virus 40 large T antigen (SV40LT) was used to transduce human infrapatellar fat pad-derived stem cells (IPFSCs). We found that virus transduction modified the proliferative, chondrogenic, and adipogenic abilities of IPFSCs. Interestingly, dECM deposited by immortalized cells significantly influenced replicative senescent IPFSCs in proliferation and differentiation preference, the effect of which is hinged on the approach of immortalization using either SV40LT or hTERT. Our findings indicate both dECM expansion and immortalization strategies can be used for replicative senescent adult stem cells' proliferation and lineage-specific differentiation, which benefits future stem cell-based tissue regeneration. This approach may also work for adult stem cells with premature senescence in elderly/aged patients, which needs further investigation. STATEMENT OF SIGNIFICANCE: Adult stem cells are a promising solution for autologous cell-based therapy. Unfortunately, cell senescence due to donor age and/or ex vivo expansion prevents clinical application. Recent progress with decellularized extracellular matrix provides a potential for the rejuvenation of senescent stem cells by improving their proliferation and differentiation capacities. Given the fact that the young matrix can provide a healthy and energetic microenvironment, in this study, two approaches using lentivirus transduction of hTERT and SV40LT were compared. The goal was to immortalize donor cells for deposition of decellularized extracellular matrix. The matrix was demonstrated to contribute diverging effects on the chondrogenic and adipogenic differentiation of expanded stem cells and exhibited proliferation benefits as well. These findings provide an invaluable asset for stem cell-based tissue regeneration.
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Affiliation(s)
- Yiming Wang
- Stem Cell and Tissue Engineering Laboratory, Department of Orthopaedics, West Virginia University, Morgantown, WV, USA; Department of Joint Surgery, Shanghai East Hospital, Tongji University, Shanghai, China
| | - Yixuan Amy Pei
- Stem Cell and Tissue Engineering Laboratory, Department of Orthopaedics, West Virginia University, Morgantown, WV, USA; Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA
| | - Yuan Sun
- Stem Cell and Tissue Engineering Laboratory, Department of Orthopaedics, West Virginia University, Morgantown, WV, USA
| | - Sheng Zhou
- Stem Cell and Tissue Engineering Laboratory, Department of Orthopaedics, West Virginia University, Morgantown, WV, USA
| | - Xiao-Bing Zhang
- State Key Laboratory of Experimental Hematology, Tianjin, China; Department of Medicine, Loma Linda University, Loma Linda, CA, USA.
| | - Ming Pei
- Stem Cell and Tissue Engineering Laboratory, Department of Orthopaedics, West Virginia University, Morgantown, WV, USA; WVU Cancer Institute, Robert C. Byrd Health Sciences Center, West Virginia University, Morgantown, WV, USA.
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20
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Li S, Fu Z, Wang C, Shang X, Zhao Y, Liu C, Pei M. An ultrasensitive and specific electrochemical biosensor for DNA detection based on T7 exonuclease-assisted regulatory strand displacement amplification. Anal Chim Acta 2021; 1183:338988. [PMID: 34627518 DOI: 10.1016/j.aca.2021.338988] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Revised: 08/18/2021] [Accepted: 08/21/2021] [Indexed: 11/26/2022]
Abstract
An electrochemical biosensor for determination of DNA is developed based on T7 exonuclease-assisted regulatory strand displacement dual recycling signal amplification strategy. First, the hairpin probe recognized and bound the target DNA to form a double strand nucleotide structure, and then the T7 exonuclease was introduced. After be digested by T7 exonuclease, the target DNA was released and entered the next cycle of T7 exonuclease-assisted recycle amplification, while accompanied by a large number of mimic targets (output DNAs) into another cycle. Second, the mimic target reacted with double-chain substrated DNA (CP) by a regulated toehold exchange mechanism, yielding the product complex of detection probes with the help of assisted DNA (S). Finally, after many cycles, a large number of detection probes were produced for binding numerous streptavidin-alkaline phosphatases. The electrochemical biosensor showed very high sensitivity and selectivity with a dynamic response ranged from 0.1 fM to 10 pM with a detection limit of 31.6 aM. Furthermore, this proposed biosensor was successfully applied to the detection of target DNA in 20% diluted serum. The developed strategy has been demonstrated to have the potential for application in molecular diagnostics.
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Affiliation(s)
- Shengqiang Li
- Clinical Laboratory, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, 300000, PR China; National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, 300000, PR China
| | - Zhengxiang Fu
- Clinical Laboratory, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, 300000, PR China; National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, 300000, PR China
| | - Chao Wang
- Clinical Laboratory, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, 300000, PR China; National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, 300000, PR China
| | - Xipeng Shang
- Clinical Laboratory, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, 300000, PR China; National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, 300000, PR China
| | - Yan Zhao
- Clinical Laboratory, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, 300000, PR China; National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, 300000, PR China
| | - Cuiying Liu
- Clinical Laboratory, Tianjin Xi Qing Hospital Tianjin, 300000, PR China.
| | - Ming Pei
- National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, 300000, PR China; Division of Nephrology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, 300000, PR China.
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21
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Yu HX, Lin W, Yang K, Wei LJ, Chen JL, Liu XY, Zhong K, Chen X, Pei M, Yang HT. Transcriptome-Based Network Analysis Reveals Hirudin Potentiates Anti-Renal Fibrosis Efficacy in UUO Rats. Front Pharmacol 2021; 12:741801. [PMID: 34621173 PMCID: PMC8490886 DOI: 10.3389/fphar.2021.741801] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Accepted: 09/07/2021] [Indexed: 12/17/2022] Open
Abstract
Background: Hirudin has been widely used in the treatment of antifibrosis. Previous studies have shown that hirudin can effectively improve the clinical remission rate of chronic kidney disease. However, the mechanism of its renal protection has not been systematically investigated. Methods: In this study, the reliability of UUO-induced renal interstitial fibrosis was evaluated by histopathological verification. High-throughput transcriptome sequencing was used to elucidate the molecular mechanism of hirudin, differentially expressed mRNAs were identified, and their functions were analyzed by GO analysis and GSEA. In addition, the RNA-seq results were validated by in vitro and vivo experiments. Results: We found 322 identical differential expressed genes (IDEs) in the UUO hirudin-treated group compared with the sham group. Functional enrichment analysis indicated that cellular amino acid metabolic processes were the most obvious enrichment pathways in biological processes. In terms of molecular functional enrichment analysis, IDEs were mainly enriched in coenzyme binding, pyridoxal phosphate binding and other pathways. In addition, microbody is the most obvious pathway for cellular components. A total of 115 signaling pathways were enriched, and AMPK, JAK-STAT, and PI3K-Akt signaling pathways were the important signaling pathways enriched. We found that PI3K, p-Akt, and mTOR expression were significantly reduced by hirudin treatment. In particular, our results showed that hirudin could induce a decrease in the expression of autophagy-related proteins such as P62, LC3, Beclin-1 in TGF-β1-induced NRK-52E cells. Conclusion: Our results suggest that hirudin may protect the kidney by ameliorating renal autophagy impairment through modulating the PI3K/Akt pathway.
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Affiliation(s)
- Hang-Xing Yu
- Department of Nephrology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China.,National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, China
| | - Wei Lin
- Department of Nephrology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China.,National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, China
| | - Kang Yang
- Kidney Disease Treatment Center, The First Affiliated Hospital of Henan University of CM, Zhengzhou, China
| | - Li-Juan Wei
- Department of Nephrology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China.,National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, China
| | - Jun-Li Chen
- Department of Nephrology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China.,National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, China
| | - Xin-Yue Liu
- Department of Nephrology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China.,National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, China
| | - Ke Zhong
- Department of Nephrology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China.,National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, China
| | - Xin Chen
- Department of Nephrology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China.,National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, China
| | - Ming Pei
- Department of Nephrology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China.,National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, China
| | - Hong-Tao Yang
- Department of Nephrology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China.,National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, China
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22
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Xu J, Zhao C, Jia Y, Wang S, Ma X, Wang T, Huang S, Pei M, Wang X, Zhou P. 539P Interim results of a phase I study of M701, a recombinant anti-EpCAM and anti-CD3 bispecific antibody in EpCAM-positive cancer patients with malignant ascites. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.08.1061] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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23
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Pei YA, Dong Y, He TC, Li WJ, Toh WS, Pei M. Editorial: Extracellular Vesicle Treatment, Epigenetic Modification and Cell Reprogramming to Promote Bone and Cartilage Regeneration. Front Bioeng Biotechnol 2021; 9:678014. [PMID: 33968918 PMCID: PMC8096898 DOI: 10.3389/fbioe.2021.678014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Accepted: 03/22/2021] [Indexed: 11/13/2022] Open
Affiliation(s)
- Yixuan Amy Pei
- Stem Cell and Tissue Engineering Laboratory, Department of Orthopaedics, West Virginia University, Morgantown, WV, United States
| | - Yufeng Dong
- Department of Orthopedic Surgery, Center for Tissue Engineering and Regenerative Medicine, Louisiana State University Health Sciences Center, Shreveport, LA, United States
| | - Tong-Chuan He
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL, United States
| | - Wan-Ju Li
- Department of Orthopedics and Rehabilitation, University of Wisconsin-Madison, Madison, WI, United States
| | - Wei Seong Toh
- Faculty of Dentistry, National University of Singapore, Singapore, Singapore.,Department of Orthopaedic Surgery, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Ming Pei
- Stem Cell and Tissue Engineering Laboratory, Department of Orthopaedics, West Virginia University, Morgantown, WV, United States
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24
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Pei M, Zou D, Gao Y, Zhang J, Huang P, Wang J, Huang J, Li Z, Chen Y. The influence of sample geometry and size on porcine aortic material properties from uniaxial tensile tests using custom-designed tissue cutters, clamps and molds. PLoS One 2021; 16:e0244390. [PMID: 33556052 PMCID: PMC7869995 DOI: 10.1371/journal.pone.0244390] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Accepted: 12/08/2020] [Indexed: 11/18/2022] Open
Abstract
The aim of this study was to identify the influence of specimen geometry and size on the results of aortic uniaxial tensile tests using custom-designed tissue cutters, clamps and molds. Six descending thoracic aortas from pigs were used for rectangular sample tests, in which the circumferential and axial specimens had widths of 6 mm, 8 mm and 10 mm. The other six aortas were used for the dog-bone-shaped sample tests and were punched into circumferential, axial and oblique specimens with widths of 2 mm, 4 mm and 6 mm. We performed uniaxial tensile tests on the specimens and compared the test results. The results showed that mid-sample failure occurred in 85.2% of the dog-bone-shaped specimens and in 11.1% of the rectangular samples, which could be caused by Saint-Venant’s principle. Therefore, rectangular specimens were not suitable for aortic uniaxial tensile testing performed until rupture. The results also showed that the size effect of the aorta conformed to Weibull theory, and dog-bone-shaped specimens with a width of 4 mm were the optimal choice for aortic uniaxial tensile testing performed until rupture.
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Affiliation(s)
- Ming Pei
- West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, Sichuan Province, China
- Shanghai Key laboratory of Forensic Medicine, Academy of Forensic Science, Ministry of Justice, Shanghai, China
- Institute of Forensic Science, Xuzhou Public Security Bureau, Xuzhou, Jiangsu Province, China
| | - Donghua Zou
- Shanghai Key laboratory of Forensic Medicine, Academy of Forensic Science, Ministry of Justice, Shanghai, China
- School of Forensic Medicine, Guizhou Medical University, Guiyang, Guizhou Province, China
| | - Yong Gao
- School of Mechanical Engineering, University of Shanghai for Science and Technology, Shanghai, China
| | - Jianhua Zhang
- Shanghai Key laboratory of Forensic Medicine, Academy of Forensic Science, Ministry of Justice, Shanghai, China
| | - Ping Huang
- Shanghai Key laboratory of Forensic Medicine, Academy of Forensic Science, Ministry of Justice, Shanghai, China
| | - Jiawen Wang
- School of Forensic Medicine, Guizhou Medical University, Guiyang, Guizhou Province, China
| | - Jiang Huang
- School of Forensic Medicine, Guizhou Medical University, Guiyang, Guizhou Province, China
| | - Zhengdong Li
- Shanghai Key laboratory of Forensic Medicine, Academy of Forensic Science, Ministry of Justice, Shanghai, China
- Department of Forensic Medicine, School of Basic Medical Sciences, Fudan University, Shanghai, China
- * E-mail: (ZL); (YC)
| | - Yijiu Chen
- West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, Sichuan Province, China
- Shanghai Key laboratory of Forensic Medicine, Academy of Forensic Science, Ministry of Justice, Shanghai, China
- * E-mail: (ZL); (YC)
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25
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Wang Y, Hu G, Hill RC, Dzieciatkowska M, Hansen KC, Zhang XB, Yan Z, Pei M. Matrix reverses immortalization-mediated stem cell fate determination. Biomaterials 2021; 265:120387. [PMID: 32987274 PMCID: PMC7944411 DOI: 10.1016/j.biomaterials.2020.120387] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Revised: 08/24/2020] [Accepted: 09/14/2020] [Indexed: 12/15/2022]
Abstract
Primary cell culture in vitro suffers from cellular senescence. We hypothesized that expansion on decellularized extracellular matrix (dECM) deposited by simian virus 40 large T antigen (SV40LT) transduced autologous infrapatellar fat pad stem cells (IPFSCs) could rejuvenate high-passage IPFSCs in both proliferation and chondrogenic differentiation. In the study, we found that SV40LT transduced IPFSCs exhibited increased proliferation and adipogenic potential but decreased chondrogenic potential. Expansion on dECMs deposited by passage 5 IPFSCs yielded IPFSCs with dramatically increased proliferation and chondrogenic differentiation capacity; however, this enhanced capacity diminished if IPFSCs were grown on dECM deposited by passage 15 IPFSCs. Interestingly, expansion on dECM deposited by SV40LT transduced IPFSCs yielded IPFSCs with enhanced proliferation and chondrogenic capacity but decreased adipogenic potential, particularly for the dECM group derived from SV40LT transduced passage 15 cells. Our immunofluorescence staining and proteomics data identify matrix components such as basement membrane proteins as top candidates for matrix mediated IPFSC rejuvenation. Both cell proliferation and differentiation were endorsed by transcripts measured by RNASeq during the process. This study provides a promising model for in-depth investigation of the matrix protein influence on surrounding stem cell differentiation.
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Affiliation(s)
- Yiming Wang
- Stem Cell and Tissue Engineering Laboratory, Department of Orthopaedics, West Virginia University, Morgantown, WV, USA; Department of Orthopaedics, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Gangqing Hu
- Department of Microbiology, Immunology, and Cell Biology, West Virginia University, Morgantown, WV, USA; Bioinformatics Core, West Virginia University, Morgantown, WV, USA
| | - Ryan C Hill
- Department of Biochemistry & Molecular Genetics, University of Colorado Denver, Aurora, CO, USA
| | - Monika Dzieciatkowska
- Department of Biochemistry & Molecular Genetics, University of Colorado Denver, Aurora, CO, USA
| | - Kirk C Hansen
- Department of Biochemistry & Molecular Genetics, University of Colorado Denver, Aurora, CO, USA
| | - Xiao-Bing Zhang
- State Key Laboratory of Experimental Hematology, Tianjin, China; Department of Medicine, Loma Linda University, Loma Linda, CA, USA.
| | - Zuoqin Yan
- Department of Orthopaedics, Zhongshan Hospital, Fudan University, Shanghai, China.
| | - Ming Pei
- Stem Cell and Tissue Engineering Laboratory, Department of Orthopaedics, West Virginia University, Morgantown, WV, USA; WVU Cancer Institute, Robert C. Byrd Health Sciences Center, West Virginia University, Morgantown, WV, USA.
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26
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Pei M, Chen J, Dong S, Yang B, Yang K, Wei L, Zhai J, Yang H. Auricular Acupressure for Insomnia in Patients With Maintenance Hemodialysis: A Systematic Review and Meta-Analysis. Front Psychiatry 2021; 12:576050. [PMID: 34349673 PMCID: PMC8326797 DOI: 10.3389/fpsyt.2021.576050] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Accepted: 06/17/2021] [Indexed: 12/26/2022] Open
Abstract
Background: Insomnia is one of the common problems in patients with maintenance hemodialysis (MHD). Previous studies have reported the beneficial effects of auricular acupressure (AA) for insomnia in patients with MHD. This study aimed to critically evaluate the efficacy and safety of AA for insomnia in patients with MHD. Methods: Web of Science, Embase, PubMed, Cochrane Library, Chinese Biomedical Database, Wanfang Data, Chinese Science and Technology Periodicals database, and China National Knowledge Infrastructure were systematically searched from inception to April 30, 2020, to identify any eligible randomized controlled trials. MHD patients with insomnia were included regardless of age, gender, nationality, or race. The experimental interventions included AA alone or AA combined with other therapies. The control interventions included placebo, no treatment, or other therapies. The primary outcome was sleep quality measured by the Pittsburgh Sleep Quality Index (PSQI). RevMan 5.3 software was used for statistical analysis. Results: Eight studies involving 618 participants were included for statistical analysis. A meta-analysis showed no significant difference of PSQI global score after 8 weeks of AA treatment compared with estazolam (p = 0.70). Other narrative analyses revealed that PSQI global score was significantly attenuated after AA treatment in comparison with mental health education (p = 0.03, duration of 4 weeks; p = 0.02, duration of 8 weeks), AA plus routine nursing care compared with routine nursing care alone (p < 0.0001), and AA plus footbath compared with footbath alone (p = 0.01), respectively. A meta-analysis showed that AA could significantly increase the response rate (reduction of PSQI global score by 25% and more) in comparison with estazolam (p = 0.01). Other narrative analyses reported that the response rate was significantly increased after AA treatment compared with sham AA (p = 0.02), AA compared with mental health education (p = 0.04), and AA plus routine nursing care compared with routine nursing care alone (p = 0.0003), respectively. Conclusion: The present findings suggest that AA may be an alternative treatment for insomnia in patients with MHD. However, more large-scale, high-quality trials are still warranted to confirm these outcomes.
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Affiliation(s)
- Ming Pei
- Division of Nephrology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China.,National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, China
| | - Junli Chen
- Division of Nephrology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China.,National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, China
| | - Shuo Dong
- Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Bo Yang
- Division of Nephrology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Kang Yang
- Division of Nephrology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Lijuan Wei
- Division of Nephrology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Jingbo Zhai
- Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Hongtao Yang
- Division of Nephrology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China.,National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, China
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27
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Lu Z, Zhou S, Vaida J, Gao G, Stewart A, Parenti J, Yan L, Pei M. Unfavorable Contribution of a Tissue-Engineering Cartilage Graft to Osteochondral Defect Repair in Young Rabbits. Front Cell Dev Biol 2020; 8:595518. [PMID: 33195273 PMCID: PMC7658375 DOI: 10.3389/fcell.2020.595518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2020] [Accepted: 10/12/2020] [Indexed: 11/17/2022] Open
Abstract
A stem cell-based tissue-engineering approach is a promising strategy for treatment of cartilage defects. However, there are conflicting data in the feasibility of using this approach in young recipients. A young rabbit model with an average age of 7.7 months old was used to evaluate the effect of a tissue-engineering approach on the treatment of osteochondral defects. Following in vitro evaluation of proliferation and chondrogenic capacity of infrapatellar fat pad-derived stem cells (IPFSCs) after expansion on either tissue culture plastic (TCP) or decellularized extracellular matrix (dECM), a premature tissue construct engineered from pretreated IPFSCs was used to repair osteochondral defects in young rabbits. We found that dECM expanded IPFSCs exhibited higher proliferation and chondrogenic differentiation compared to TCP expanded cells in both pellet and tissue construct culture systems. Six weeks after creation of bilateral osteochondral defects in the femoral trochlear groove of rabbits, the Empty group (left untreated) had the best cartilage resurfacing with the highest score in Modified O’Driscoll Scale (MODS) than the other groups; however, this score had no significant difference compared to that of 15-week samples, indicating that young rabbits stop growing cartilage once they reach 9 months old. Interestingly, implantation of premature tissue constructs from both dECM and TCP groups exhibited significantly improved cartilage repair at 15 weeks compared to those at six weeks (about 9 months old), indicating that a tissue-engineering approach is able to repair adult cartilage defects. We also found that implanted pre-labeled cells in premature tissue constructs were undetectable in resurfaced cartilage at both time points. This study suggests that young rabbits (less than 9 months old) might respond differently to the classical tissue-engineering approach that is considered as a potential treatment for cartilage defects in adult rabbits.
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Affiliation(s)
- Zhihua Lu
- Stem Cell and Tissue Engineering Laboratory, Department of Orthopaedics, West Virginia University, Morgantown, WV, United States.,Department of Orthopedics, Clinical Medical College of Yangzhou University, Subei People's Hospital of Jiangsu Province, Yangzhou, China
| | - Sheng Zhou
- Stem Cell and Tissue Engineering Laboratory, Department of Orthopaedics, West Virginia University, Morgantown, WV, United States
| | - Justin Vaida
- Stem Cell and Tissue Engineering Laboratory, Department of Orthopaedics, West Virginia University, Morgantown, WV, United States
| | - Gongming Gao
- Stem Cell and Tissue Engineering Laboratory, Department of Orthopaedics, West Virginia University, Morgantown, WV, United States
| | - Amanda Stewart
- Stem Cell and Tissue Engineering Laboratory, Department of Orthopaedics, West Virginia University, Morgantown, WV, United States
| | - Joshua Parenti
- Stem Cell and Tissue Engineering Laboratory, Department of Orthopaedics, West Virginia University, Morgantown, WV, United States
| | - Lianqi Yan
- Department of Orthopedics, Clinical Medical College of Yangzhou University, Subei People's Hospital of Jiangsu Province, Yangzhou, China
| | - Ming Pei
- Stem Cell and Tissue Engineering Laboratory, Department of Orthopaedics, West Virginia University, Morgantown, WV, United States.,WVU Cancer Institute, Robert C. Byrd Health Sciences Center, West Virginia University, Morgantown, WV, United States
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28
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Li S, Liu X, Liu S, Guo M, Liu C, Pei M. Fluorescence sensing strategy based on aptamer recognition and mismatched catalytic hairpin assembly for highly sensitive detection of alpha-fetoprotein. Anal Chim Acta 2020; 1141:21-27. [PMID: 33248654 DOI: 10.1016/j.aca.2020.10.030] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Revised: 10/05/2020] [Accepted: 10/15/2020] [Indexed: 12/23/2022]
Abstract
At present, alpha fetoprotein (AFP) is mainly used as a serum marker of primary Hepatocellular carcinoma. A simple, enzyme-free sensing strategy is introduced for highly sensitive fluorescence detection of AFP. This detection strategy is based on aptamer recognition and mismatched catalytic hairpin assembly (MCHA). At first, Trigger is locked by aptamer before the introduction of AFP in this aptamer-MCHA system. The aptamer preferentially combines with AFP via powerful attraction in the presence of AFP. This results in the release of trigger and initiation of MCHA cycle, thus forming the H1 and H2 double chain complexes (denoted as H1@H2). Finally, H1@H2 and double chain structure containing fluorophore and its quenched group- BHQ1 (denoted as F@Q) initiated displacement reaction, which caused double chain separation and fluorescence recovery. This assay produces a wide detection range, which is from 0.1 ng mL-1 to 10 μg mL-1 and the limit of detection as 0.033 ng mL-1. The whole detection process was performed at 37 °C for 60 min. In addition, this assay had high anti-interference ability and could be used to detect AFP in clinical serum. This novel AFP detection strategy is able to screen of Hepatocellular carcinoma.
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Affiliation(s)
- Shengqiang Li
- Clinical Laboratory, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, 300000, China
| | - Xu Liu
- Clinical Laboratory, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, 300000, China
| | - Shenglin Liu
- Clinical Laboratory, Tianjin Xi Qing Hospital Tianjin, 300000, China
| | - Mei Guo
- Clinical Laboratory, Tianjin Xi Qing Hospital Tianjin, 300000, China
| | - Cuiying Liu
- Clinical Laboratory, Tianjin Xi Qing Hospital Tianjin, 300000, China.
| | - Ming Pei
- Nephrology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine Tianjin, 300000, China.
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Yu H, Han M, Lin W, Wang L, Liu P, Yang K, Pei M, Yang H. Efficacy of Chinese Herbal Injections for the Treatment of Primary Nephrotic Syndrome: A Bayesian Network Meta-Analysis of Randomized Controlled Trials. Front Pharmacol 2020; 11:579241. [PMID: 33178022 PMCID: PMC7596388 DOI: 10.3389/fphar.2020.579241] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Accepted: 09/16/2020] [Indexed: 11/18/2022] Open
Abstract
Background Considering the adverse reactions and side effects of immunosuppressive and cytotoxic drugs for the treatment of Primary Nephrotic Syndrome (PNS) and the extensive exploration of Chinese herbal injections (CHIs), systematic evaluation of the efficacy of different CHIs in the treatment of PNS is a key imperative. In this study, we performed a network meta-analysis to investigate the efficacy of CHIs in the treatment of PNS. Methods A systematic literature review including studies published from the establishment of each database to May 28, 2020, was conducted in PubMed, the Cochrane Library, Embase, Web of Science, the Chinese Biological Medicine Literature Service System (CBM), the China National Knowledge Infrastructure (CNKI) database, the Chinese Scientific Journal Database (VIP), and the Wanfang Database (WF).Two evaluators independently screened the literature, extracted data and the Cochrane Reviewer’s Handbook 5.1 method was used to evaluate the quality of included studies. The differences in efficacy of different CHIs were compared and ranked using Stata 16.0 software. Surface under the cumulative ranking curve (SUCRA) probability values were applied to rank the examined treatments. Clustering analysis was performed to compare the effects of CHIs between two different outcomes. Results A total of 41 eligible randomized controlled trials involving 2879 patients and nine CHIs were included. Nine CHIs were Xiangdan injection (XDI), Huangqi injection (HQI), Shenkang injection (SKI), Danshen injection (DSI), Yinxingdamo injection (YXI), Dengzhanhuasu injection (DZI), Danhong injection (DHI), Shuxuetong injection (SXI), Chuanxiongqin injection (CXI). The results of the network meta-analysis showed that: with Western medical (WM) treatment as a co-intervention, in terms of improving the total clinical effectiveness and serum albumin level, DHI was the most likely to be the best choice for treatment (SUCRA = 82.2%); YXI had the highest probability of being the best option in terms of reducing 24-h urinary protein excretion (SUCRA = 97.8%); in cholesterol-lowering comparisons, the SUCRA value allows for the most likely to be the best treatment is DZI (SUCRA = 84.5%). SXI was the most effective CHIs in terms of lowering serum triglycerides (SUCRA = 85.6%), whereas on the reducing fibrinogen side, the efficacy of CXI was significant (SUCRA = 67.6%). The result cluster analysis indicated that YXI and DHI were the best interventions with respect to total clinical effectiveness, 24-h urinary protein excretion and serum albumin. Conclusions CHIs were found to be superior to WM alone in the treatment of PNS and may be beneficial for patients with PNS. WM+YXI and WM+DHI had the potential to be the best CHI with respect to the total clinical effectiveness, 24-h urinary protein excretion and serum albumin. However, more well-designed randomized controlled trials are still warranted.
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Affiliation(s)
- Hangxing Yu
- Department of Nephrology, The First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Miaoru Han
- Department of Nephrology, The First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Wei Lin
- Department of Nephrology, The First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Lin Wang
- Department of Nephrology, The First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Panying Liu
- Department of Nephrology, The First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Kang Yang
- Department of Nephrology, The First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Ming Pei
- Department of Nephrology, The First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Hongtao Yang
- Department of Nephrology, The First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
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Li T, Chen S, Pei M. Contribution of neural crest-derived stem cells and nasal chondrocytes to articular cartilage regeneration. Cell Mol Life Sci 2020; 77:4847-4859. [PMID: 32504256 DOI: 10.1007/s00018-020-03567-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Revised: 05/06/2020] [Accepted: 05/27/2020] [Indexed: 12/12/2022]
Abstract
Due to poor self-regenerative potential of articular cartilage, stem cell-based regeneration becomes a hopeful approach for the treatment of articular cartilage defects. Recent studies indicate that neural crest-derived cells (NCDCs) have the potential for repairing articular cartilage with even greater chondrogenic capacity than mesoderm-derived cells (MDCs): a conventional stem cell source for cartilage regeneration. Given that NCDCs originate from a different germ layer in the early embryo compared with MDCs that give rise to articular cartilage, a mystery remains regarding their capacity for articular cartilage regeneration. In this review, we summarize the similarities and differences between MDCs and NCDCs including articular and nasal chondrocytes in cell origin, anatomy, and chondrogenic differentiation and propose that NCDCs might be promising cell origins for articular cartilage regeneration.
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Affiliation(s)
- Tianyou Li
- Stem Cell and Tissue Engineering Laboratory, Department of Orthopaedics, West Virginia University, 64 Medical Center Drive, PO Box 9196, Morgantown, WV, 26506-9196, USA.,Department of Pediatric Orthopaedics, Shandong Provincial Hospital affiliated to Shandong First Medical University, Jinan, China
| | - Song Chen
- Department of Orthopaedics, The General Hospital of Western Theater Command, Chengdu, 610083, Sichuan, China
| | - Ming Pei
- Stem Cell and Tissue Engineering Laboratory, Department of Orthopaedics, West Virginia University, 64 Medical Center Drive, PO Box 9196, Morgantown, WV, 26506-9196, USA. .,WVU Cancer Institute, Robert C. Byrd Health Sciences Center, West Virginia University, Morgantown, WV, USA.
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Wang T, Hill RC, Dzieciatkowska M, Zhu L, Infante AM, Hu G, Hansen KC, Pei M. Site-Dependent Lineage Preference of Adipose Stem Cells. Front Cell Dev Biol 2020; 8:237. [PMID: 32351957 PMCID: PMC7174673 DOI: 10.3389/fcell.2020.00237] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Accepted: 03/20/2020] [Indexed: 12/15/2022] Open
Abstract
Adult stem cells have unique properties in both proliferation and differentiation preference. In this study, we hypothesized that adipose stem cells have a depot-dependent lineage preference. Four rabbits were used to provide donor-matched adipose stem cells from either subcutaneous adipose tissue (ScAT) or infrapatellar fat pad (IPFP). Proliferation and multi-lineage differentiation were evaluated in adipose stem cells from donor-matched ScAT and IPFP. RNA sequencing (RNA-seq) and proteomics were conducted to uncover potential molecular discrepancy in adipose stem cells and their corresponding matrix microenvironments. We found that stem cells from ScAT exhibited significantly higher proliferation and adipogenic capacity compared to those from donor-matched IPFP while stem cells from IPFP displayed significantly higher chondrogenic potential compared to those from donor-matched ScAT. Our findings are strongly endorsed by supportive data from transcriptome and proteomics analyses, indicating a site-dependent lineage preference of adipose stem cells.
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Affiliation(s)
- Tingliang Wang
- Stem Cell and Tissue Engineering Laboratory, Department of Orthopedics, West Virginia University, Morgantown, WV, United States
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People’s Hospital Affiliated with Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Ryan C. Hill
- Department of Biochemistry and Molecular Genetics, University of Colorado Denver, Aurora, CO, United States
| | - Monika Dzieciatkowska
- Department of Biochemistry and Molecular Genetics, University of Colorado Denver, Aurora, CO, United States
| | - Lian Zhu
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People’s Hospital Affiliated with Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Aniello M. Infante
- Bioinformatics Core Facility, West Virginia University, Morgantown, WV, United States
| | - Gangqing Hu
- Bioinformatics Core Facility, West Virginia University, Morgantown, WV, United States
- Department of Microbiology, Immunology and Cell Biology, School of Medicine, West Virginia University, Morgantown, WV, United States
| | - Kirk C. Hansen
- Department of Biochemistry and Molecular Genetics, University of Colorado Denver, Aurora, CO, United States
| | - Ming Pei
- Stem Cell and Tissue Engineering Laboratory, Department of Orthopedics, West Virginia University, Morgantown, WV, United States
- WVU Cancer Institute, Robert C. Byrd Health Sciences Center, West Virginia University, Morgantown, WV, United States
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Zhou S, Fu Y, Zhang XB, Pei M. Liver Kinase B1 Fine-Tunes Lineage Commitment of Human Fetal Synovium-Derived Stem Cells. J Orthop Res 2020; 38:258-268. [PMID: 31429977 PMCID: PMC7294510 DOI: 10.1002/jor.24449] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Accepted: 07/25/2019] [Indexed: 02/04/2023]
Abstract
Liver kinase B1 (LKB1), a serine/threonine protein, is a key regulator in stem cell function and energy metabolism. Herein, we describe the role of LKB1 in modulating the differentiation of synovium-derived stem cells (SDSCs) toward chondrogenic, adipogenic, and osteogenic lineages. Human fetal SDSCs were transduced with CRISPR associated protein 9 (Cas9)-single-guide RNA vectors to knockout or lentiviral vectors to overexpress the LKB1 gene. Analyses including ICE (Inference of CRISPR Edits) data from Sanger sequencing and quantitative polymerase chain reaction (qPCR) as well as Western blot demonstrated successful knockout (KO) or overexpression (OE) of LKB1 in human fetal SDSCs without any detectable side effects in morphology, proliferation rate, and cell cycle. LKB1 KO increased CD146 expression; interestingly, LKB1 OE increased SSEA4 level. The qPCR data showed that LKB1 KO upregulated the levels of SOX2 and NANOG while LKB1 OE lowered the expression of POU5F1 and KLF4. Furthermore, LKB1 KO enhanced, and LKB1 OE inhibited, chondrogenic and adipogenic differentiation potential. However, perhaps due to the inherent inability to achieve osteogenesis, LKB1 did not obviously affect osteogenic differentiation. These data demonstrate that LKB1 plays a significant role in determining human SDSCs' adipogenic and chondrogenic differentiation, which might provide an approach for fine-tuning the direction of stem cell differentiation in tissue engineering and regeneration. © 2019 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 38:258-268, 2020.
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Affiliation(s)
- Sheng Zhou
- Stem Cell and Tissue Engineering Laboratory, Department of Orthopaedics, West Virginia University, Morgantown, WV, 26506, USA,Department of Sports Medicine and Adult Reconstructive Surgery, Drum Tower Hospital, School of Medicine, Nanjing University, 321 Zhongshan Road, Nanjing, 210008, Jiangsu, China
| | - Yawen Fu
- State Key Laboratory of Experimental Hematology, Institute of Hematology and Blood Disease Hospital, Tianjin, China,Department of Medicine, Loma Linda University, Loma Linda, CA, USA
| | - Xiao-Bing Zhang
- State Key Laboratory of Experimental Hematology, Institute of Hematology and Blood Disease Hospital, Tianjin, China,Department of Medicine, Loma Linda University, Loma Linda, CA, USA,Co-corresponding author: Xiao-Bing Zhang, PhD. Division of Regenerative Medicine MC1528B, Department of Medicine, Loma Linda University, 11234 Anderson Street, Loma Linda, CA 92350, USA. Phone: 909-651-5886. Fax: 909-558-0428.
| | - Ming Pei
- Stem Cell and Tissue Engineering Laboratory, Department of Orthopaedics, West Virginia University, Morgantown, WV, 26506, USA,WVU Cancer Institute, Robert C. Byrd Health Sciences Center, West Virginia University, Morgantown, WV, 26506, USA,Corresponding author: Ming Pei MD, PhD, Stem Cell and Tissue Engineering Laboratory, Department of Orthopaedics, West Virginia University, PO Box 9196, 64 Medical Center Drive, Morgantown, WV 26506-9196, USA, Telephone: 304-293-1072; Fax: 304-293-7070;
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Abstract
Adult stem cell-based therapy has been regarded as a promising treatment for tissue ischemia because of its ability to promote new blood vessel formation. Bone marrow-derived mesenchymal stem cells are the most used angiogenic cells for therapeutic neovascularization, yet the side effects and low efficacy have limited their clinical application. Adipose stromal vascular fraction is an easily accessible, heterogeneous cell system comprised of endothelial, stromal, and hematopoietic cell lineages, which has been shown to spontaneously form robust, patent, and functional vasculatures in vivo. However, the characteristics of each cell population and their specific roles in neovascularization remain an area of ongoing investigation. In this review, we summarize the functional capabilities of various stromal vascular fraction constituents during the process of neovascularization and attempt to analyze whether the cross-talk between these constituents generates a synergetic effect, thus contributing to the development of new potential therapeutic strategies to promote neovascularization.
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Affiliation(s)
- Yuan Sun
- From the Department of Vascular Surgery, Clinical Medical College of Yangzhou University, Subei People's Hospital of Jiangsu Province, Jiangsu, China (Y.S., X.Z.); Stem Cell and Tissue Engineering Laboratory, Department of Orthopaedics (Y.S., M.P.), Exercise Physiology (M.P.), and WVU Cancer Institute, Robert C. Byrd Health Sciences Center (M.P.), West Virginia University, Morgantown; and Department of Orthopaedics, Chengdu Military General Hospital, Chengdu, Sichuan, China (S.C.)
| | - Song Chen
- From the Department of Vascular Surgery, Clinical Medical College of Yangzhou University, Subei People's Hospital of Jiangsu Province, Jiangsu, China (Y.S., X.Z.); Stem Cell and Tissue Engineering Laboratory, Department of Orthopaedics (Y.S., M.P.), Exercise Physiology (M.P.), and WVU Cancer Institute, Robert C. Byrd Health Sciences Center (M.P.), West Virginia University, Morgantown; and Department of Orthopaedics, Chengdu Military General Hospital, Chengdu, Sichuan, China (S.C.)
| | - Xicheng Zhang
- From the Department of Vascular Surgery, Clinical Medical College of Yangzhou University, Subei People's Hospital of Jiangsu Province, Jiangsu, China (Y.S., X.Z.); Stem Cell and Tissue Engineering Laboratory, Department of Orthopaedics (Y.S., M.P.), Exercise Physiology (M.P.), and WVU Cancer Institute, Robert C. Byrd Health Sciences Center (M.P.), West Virginia University, Morgantown; and Department of Orthopaedics, Chengdu Military General Hospital, Chengdu, Sichuan, China (S.C.)
| | - Ming Pei
- From the Department of Vascular Surgery, Clinical Medical College of Yangzhou University, Subei People's Hospital of Jiangsu Province, Jiangsu, China (Y.S., X.Z.); Stem Cell and Tissue Engineering Laboratory, Department of Orthopaedics (Y.S., M.P.), Exercise Physiology (M.P.), and WVU Cancer Institute, Robert C. Byrd Health Sciences Center (M.P.), West Virginia University, Morgantown; and Department of Orthopaedics, Chengdu Military General Hospital, Chengdu, Sichuan, China (S.C.)
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Abstract
In the last decade, researchers have searched for predictive surface markers of multipotent mesenchymal stromal/stem cells (MSCs) for ensuring improved therapeutic outcomes following cartilage damage in humans. However, we have achieved only limited progress because of the challenge presented by conflicting data. This commentary provides some evidence to prove a lack of success with current efforts, including an inconsistency in accepted surface markers and chondrogenic potential of MSCs as well as the tissue source-dependent MSC surface markers that correlate with chondrogenic potential. A brief discussion on these disputed topics and perspective about functionally predictive surface markers and standardization of analytic procedures are also highlighted.
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Affiliation(s)
- Zhihua Lu
- Stem Cell and Tissue Engineering Laboratory, Department of Orthopaedics, West Virginia University, Morgantown, WV, 26506, USA.,Department of Orthopaedics, Orthopaedics Institute, Clinical Medical College of Yangzhou University, Subei People's Hospital of Jiangsu Province, Yangzhou, Jiangsu, 225001, China
| | - Lianqi Yan
- Department of Orthopaedics, Orthopaedics Institute, Clinical Medical College of Yangzhou University, Subei People's Hospital of Jiangsu Province, Yangzhou, Jiangsu, 225001, China
| | - Ming Pei
- Stem Cell and Tissue Engineering Laboratory, Department of Orthopaedics, West Virginia University, Morgantown, WV, 26506, USA.,WVU Cancer Institute, Robert C. Byrd Health Sciences Center, West Virginia University, Morgantown, WV, 26506, USA
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Chen W, Chen X, Chen AC, Shi Q, Pan G, Pei M, Yang H, Liu T, He F. Melatonin restores the osteoporosis-impaired osteogenic potential of bone marrow mesenchymal stem cells by preserving SIRT1-mediated intracellular antioxidant properties. Free Radic Biol Med 2020; 146:92-106. [PMID: 31669348 PMCID: PMC9805353 DOI: 10.1016/j.freeradbiomed.2019.10.412] [Citation(s) in RCA: 61] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Revised: 10/23/2019] [Accepted: 10/23/2019] [Indexed: 01/03/2023]
Abstract
Postmenopausal osteoporosis (OP) is one of the most common bone diseases that affects millions of aging women. Reduced osteogenesis and increased oxidative stress have been implicated in bone marrow mesenchymal stem cells (BMMSCs) derived from OP patients. Melatonin has shown positive effects on osteoblast differentiation and bone formation; however, it was unknown whether melatonin could restore OP-impaired osteogenic potential of BMMSCs and what the underlying mechanisms entailed. The objective of this study is to investigate (1) whether melatonin can restore the impaired osteogenic potential of OP BMMSCs by preserving their antioxidant functions, and if so, (2) whether intravenous administration of melatonin can prevent OP-induced bone loss in ovariectomized (OVX) rats. Ovariectomies were performed in female rats and BMMSCs were isolated from the osteoporotic rats 3 months later. In vitro treatment with melatonin successfully improved the osteogenic differentiation of OP BMMSCs, as evidenced by increased levels of matrix mineralization and osteoblast-specific genes. In melatonin-treated OP BMMSCs, intracellular oxidative stress was significantly attenuated, while levels of intracellular antioxidant enzymes were noticeably up-regulated - particularly superoxide dismutase 2 (SOD2) and glutathione peroxidase 1 (GPX1). Silent information regulator type 1 (SIRT1) was involved in the melatonin-mediated recovery of osteogenesis and antioxidant functions. Meanwhile, in vivo injections of melatonin via the tail vein successfully ameliorated the bone micro-architecture in ovariectomized rat femurs. Further experiments confirmed that BMMSCs derived from melatonin-treated OVX rats exerted well-preserved antioxidant properties and osteogenic potential. Our findings demonstrate that the administration of melatonin is a promising strategy for treating patients with postmenopausal OP by preserving the antioxidant properties and osteogenic potential of their BMMSCs.
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Affiliation(s)
- Weikai Chen
- Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Soochow University, Suzhou, 215006, China; Orthopaedic Institute, Medical College, Soochow University, Suzhou, 215007, China
| | - Xi Chen
- Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Soochow University, Suzhou, 215006, China; Orthopaedic Institute, Medical College, Soochow University, Suzhou, 215007, China
| | - Angela Carley Chen
- School of Public Health and Health Systems, University of Waterloo, Waterloo, Ontario, N2L 3G1, Canada
| | - Qin Shi
- Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Soochow University, Suzhou, 215006, China; Orthopaedic Institute, Medical College, Soochow University, Suzhou, 215007, China
| | - Guoqing Pan
- Institute for Advanced Materials, School of Materials Science and Engineering, Jiangsu University, Zhenjiang, 212013, China
| | - Ming Pei
- Stem Cell and Tissue Engineering Laboratory, Department of Orthopaedics and Division of Exercise Physiology, West Virginia University, Morgantown, WV, 26506, USA
| | - Huilin Yang
- Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Soochow University, Suzhou, 215006, China; Orthopaedic Institute, Medical College, Soochow University, Suzhou, 215007, China
| | - Tao Liu
- Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Soochow University, Suzhou, 215006, China.
| | - Fan He
- Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Soochow University, Suzhou, 215006, China; Orthopaedic Institute, Medical College, Soochow University, Suzhou, 215007, China.
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Yan J, Chen X, Pu C, Zhao Y, Liu X, Liu T, Pan G, Lin J, Pei M, Yang H, He F. Synovium stem cell-derived matrix enhances anti-inflammatory properties of rabbit articular chondrocytes via the SIRT1 pathway. Mater Sci Eng C Mater Biol Appl 2020; 106:110286. [PMID: 31753397 PMCID: PMC9805357 DOI: 10.1016/j.msec.2019.110286] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2019] [Revised: 09/13/2019] [Accepted: 10/05/2019] [Indexed: 01/03/2023]
Abstract
Autologous chondrocyte implantation (ACI) is a promising approach to repair cartilage defects; however, the cartilage trauma-induced inflammatory environment compromises its clinical outcomes. Cell-derived decellularized extracellular matrix (DECM) has been used as a culture substrate for mesenchymal stem cells (MSCs) to improve the cell proliferation and lineage-specific differentiation. In this study, DECM deposited by synovium-derived MSCs was used as an in vitro expansion system for rabbit articular chondrocytes and the response of DECM-expanded chondrocytes to pro-inflammatory cytokines such as interleukin-1β (IL-1β) and tumor necrosis factor-α (TNF-α) was evaluated. Compared with those grown on tissue culture polystyrene (TCPS), the proliferation rate was significantly improved in DECM-expanded chondrocytes. TCPS- and DECM-expanded chondrocytes were isolated and induced to redifferentiation in a high-density pellet culture. DECM-expanded chondrocytes exerted a stronger resistance to 1 ng/mL of IL-1β than TCPS-expanded cells, but the production of cartilage matrix in both groups was inhibited by 5 ng/mL of IL-1β. When exposed to 1 or 5 ng/mL of TNF-α, DECM-expanded chondrocytes showed higher levels of cartilage matrix synthesis than TCPS-expanded cells. In addition, the gene expression of IL-1β- or TNF-α-induced matrix degrading enzymes (MMP3, MMP9, MMP13, and ADAMTS5) was significantly lower in DECM-expanded chondrocytes than TCPS-expanded cells. Furthermore, we found that SIRT1 inhibition by nicotinamide completely counteracted the protective effect of DECM on chondrocytes in the presence of IL-1β or TNF-α, indicating that the SIRT1 signaling pathway was involved in the DECM-mediated enhancement of anti-inflammatory properties of chondrocytes. Taken together, this work suggests that stem cell-derived DECM is a superior culture substrate for in vitro chondrocyte expansion by improving proliferation and enhancing the anti-inflammatory properties of chondrocytes. DECM-expanded chondrocytes with enhanced anti-inflammatory properties hold great potential in clinically ACI-based cartilage repair.
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Affiliation(s)
- Jinku Yan
- Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Suzhou 215006, China,Orthopaedic Institute, Medical College, Soochow University, Suzhou 215007, China,Clinical Sample Bank, Zhejiang Cancer Hospital, Hangzhou 310022, China
| | - Xi Chen
- Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Suzhou 215006, China,Orthopaedic Institute, Medical College, Soochow University, Suzhou 215007, China
| | - Chengbo Pu
- Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Suzhou 215006, China,Orthopaedic Institute, Medical College, Soochow University, Suzhou 215007, China
| | - Yilang Zhao
- Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Suzhou 215006, China,Orthopaedic Institute, Medical College, Soochow University, Suzhou 215007, China
| | - Xiaozhen Liu
- Clinical Sample Bank, Zhejiang Cancer Hospital, Hangzhou 310022, China
| | - Tao Liu
- Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Suzhou 215006, China,Corresponding Authors: Tao Liu, M.D., Ph.D., Department of Orthopaedics, The First Affiliated Hospital of Soochow University, No. 188 Shizi Street, Suzhou 215006, Jiangsu, China. Telephone: +86-512-67781420; Fax: +86-512-67781165;
| | - Guoqing Pan
- Institute for Advanced Materials, School of Materials Science and Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Jun Lin
- Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Suzhou 215006, China
| | - Ming Pei
- Stem Cell and Tissue Engineering Laboratory, Department of Orthopaedics and Division of Exercise Physiology, West Virginia University, Morgantown, WV 26506, USA
| | - Huilin Yang
- Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Suzhou 215006, China,Orthopaedic Institute, Medical College, Soochow University, Suzhou 215007, China
| | - Fan He
- Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Suzhou 215006, China,Orthopaedic Institute, Medical College, Soochow University, Suzhou 215007, China,Fan He, Ph.D., Orthopaedic Institute, Soochow University, No.708 Renmin Road, Suzhou 215007, Jiangsu, China. Telephone: +86-512-67781420; Fax: +86-512-67781165;
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Li J, Narayanan K, Zhang Y, Hill RC, He F, Hansen KC, Pei M. Role of lineage-specific matrix in stem cell chondrogenesis. Biomaterials 2019; 231:119681. [PMID: 31864016 DOI: 10.1016/j.biomaterials.2019.119681] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Revised: 12/06/2019] [Accepted: 12/11/2019] [Indexed: 12/12/2022]
Abstract
Cartilage repair in clinics is a challenge owing to the limited regenerative capacities of cartilage. Synovium-derived stem cells (SDSCs) are suggested as tissue-specific stem cells for chondrogenesis. In this study, we hypothesize that decellularized extracellular matrix (dECM) deposited by SDSCs could provide a superior tissue-specific matrix microenvironment for optimal rejuvenation of adult SDSCs for cartilage regeneration. dECMs were deposited by adult stem cells with varying chondrogenic capacities; SDSCs (strong) (SECM), adipose-derived stem cells (weak) (AECM) and dermal fibroblasts (weak) (DECM), and urine-derived stem cells (none) (UECM). Plastic flasks (Plastic) were used as a control substrate. Human SDSCs were expanded on the above substrates for one passage and examined for chondrogenic capacities. We found that each dECM consisted of unique matrix proteins and exhibited varied stiffnesses, which affected cell morphology and elasticity. Human SDSCs grown on dECMs displayed a significant increase in cell proliferation and unique surface phenotypes. Under induction media, dECM expanded cells yielded pellets with a dramatically increased number of chondrogenic markers. Interestingly, SECM expanded cells had less potential for hypertrophy compared to those grown on other dECMs, indicating that a tissue-specific matrix might provide a superior microenvironment for stem cell chondrogenic differentiation.
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Affiliation(s)
- Jingting Li
- Stem Cell and Tissue Engineering Laboratory, Department of Orthopaedics, West Virginia University, Morgantown, WV, 26506, USA; Department of Dermatology, Department of Cellular and Molecular Medicine, UCSD Stem Cell Program, University of California, San Diego, La Jolla, CA, 92093, USA
| | - Karthikeyan Narayanan
- Stem Cell and Tissue Engineering Laboratory, Department of Orthopaedics, West Virginia University, Morgantown, WV, 26506, USA; Department of Biochemistry, West Virginia University, Morgantown, WV, 26506, USA
| | - Ying Zhang
- Stem Cell and Tissue Engineering Laboratory, Department of Orthopaedics, West Virginia University, Morgantown, WV, 26506, USA; Key Laboratory of Precision Oncology of Shandong Higher Education, Institute of Precision Medicine, Jining Medical University, Jining, Shandong, 272067, China
| | - Ryan C Hill
- Department of Biochemistry & Molecular Genetics, University of Colorado Denver, Aurora, CO, 80045, USA
| | - Fan He
- Orthopaedic Institute, Medical College, Soochow University, Suzhou, 215007, China
| | - Kirk C Hansen
- Department of Biochemistry & Molecular Genetics, University of Colorado Denver, Aurora, CO, 80045, USA
| | - Ming Pei
- Stem Cell and Tissue Engineering Laboratory, Department of Orthopaedics, West Virginia University, Morgantown, WV, 26506, USA; WVU Cancer Institute, Robert C. Byrd Health Sciences Center, West Virginia University, Morgantown, WV, 26506, USA.
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Wang Y, Fu Y, Yan Z, Zhang XB, Pei M. Impact of Fibronectin Knockout on Proliferation and Differentiation of Human Infrapatellar Fat Pad-Derived Stem Cells. Front Bioeng Biotechnol 2019; 7:321. [PMID: 31803729 PMCID: PMC6873900 DOI: 10.3389/fbioe.2019.00321] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2019] [Accepted: 10/28/2019] [Indexed: 12/15/2022] Open
Abstract
Fibronectin plays an essential role in tissue development and regeneration. However, the effects of fibronectin knockout (FN1-KO) on stem cells' proliferation and differentiation remain unknown. In this study, CRISPR/Cas9 generated FN1-KO in human infrapatellar fat pad-derived stem cells (IPFSCs) was evaluated for proliferation ability including cell cycle and surface markers as well as stemness gene expression and for differentiation capacity including chondrogenic and adipogenic differentiation. High passage IPFSCs were also evaluated for proliferation and differentiation capacity after expansion on decellularized ECM (dECM) deposited by FN1-KO cells. Successful FN1-KO in IPFSCs was confirmed by Sanger sequencing and Inference of CRISPR Edits analysis (ICE) as well as immunostaining for fibronectin expression. Compared to the GFP control, FN1-KO cells showed an increase in cell growth, percentage of cells in the S and G2 phases, and CD105 and CD146 expression but a decrease in expression of stemness markers CD73, CD90, SSEA4, and mesenchymal condensation marker CDH2 gene. FN1-KO decreased both chondrogenic and adipogenic differentiation capacity. Interestingly, IPFSCs grown on dECMs deposited by FN1-KO cells exhibited a decrease in cell proliferation along with a decline in CDH2 expression. After induction, IPFSCs plated on dECMs deposited by FN1-KO cells also displayed decreased expression of both chondrogenic and adipogenic capacity. We concluded that FN1-KO increased human IPFSCs' proliferation capacity; however, this capacity was reversed after expansion on dECM deposited by FN1-KO cells. Significance of fibronectin in chondrogenic and adipogenic differentiation was demonstrated in both FN1-KO IPFSCs and FN(-) matrix microenvironment.
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Affiliation(s)
- Yiming Wang
- Stem Cell and Tissue Engineering Laboratory, Department of Orthopaedics, West Virginia University, Morgantown, WV, United States
- Department of Orthopaedics, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Yawen Fu
- State Key Laboratory of Experimental Hematology, Institute of Hematology and Blood Disease Hospital, Tianjin, China
- Department of Medicine, Loma Linda University, Loma Linda, CA, United States
| | - Zuoqin Yan
- Department of Orthopaedics, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Xiao-Bing Zhang
- State Key Laboratory of Experimental Hematology, Institute of Hematology and Blood Disease Hospital, Tianjin, China
- Department of Medicine, Loma Linda University, Loma Linda, CA, United States
| | - Ming Pei
- Stem Cell and Tissue Engineering Laboratory, Department of Orthopaedics, West Virginia University, Morgantown, WV, United States
- WVU Cancer Institute, Robert C. Byrd Health Sciences Center, West Virginia University, Morgantown, WV, United States
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Li X, Chen S, Yan L, Wang J, Pei M. Prospective application of stem cells to prevent post-operative skeletal fibrosis. J Orthop Res 2019; 37:1236-1245. [PMID: 30835890 PMCID: PMC9202416 DOI: 10.1002/jor.24266] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/26/2018] [Accepted: 02/17/2019] [Indexed: 02/04/2023]
Abstract
Post-operative skeletal fibrosis is considered one of the major complications causing dysfunction of the skeletal system and compromising the outcomes of clinical treatment. Limited success has been achieved using current therapies; more effective therapies to reduce post-operative skeletal fibrosis are needed. Stem cells possess the ability to repair and regenerate damaged tissue. Numerous studies show that stem cells serve as a promising therapeutic approach for fibrotic diseases in tissues other than the skeletal system by inhibiting the inflammatory response and secreting favorable cytokines through activating specific signaling pathways, acting as so-called medicinal signaling cells. In this review, current therapies are summarized for post-operative skeletal fibrosis. Given that stem cells are used as a promising therapeutic approach for fibrotic diseases, little effort has been undertaken to use stem cells to prevent post-operative skeletal fibrosis. This review aims at providing useful information for the potential application of stem cells in preventing post-operative skeletal fibrosis in the near future. © 2019 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 37:1236-1245, 2019.
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Affiliation(s)
- Xiaolei Li
- Department of Orthopaedics, Orthopaedics Institute, Clinical Medical College of Yangzhou University, Subei People's Hospital of Jiangsu Province, Yangzhou, Jiangsu, 225001, China,Stem Cell and Tissue Engineering Laboratory, Department of Orthopaedics, West Virginia University, Morgantown, WV, 26506, USA
| | - Song Chen
- Department of Orthopaedics, Chengdu Military General Hospital, Chengdu, Sichuan, 610083, China
| | - Lianqi Yan
- Department of Orthopaedics, Orthopaedics Institute, Clinical Medical College of Yangzhou University, Subei People's Hospital of Jiangsu Province, Yangzhou, Jiangsu, 225001, China
| | - Jingcheng Wang
- Department of Orthopaedics, Orthopaedics Institute, Clinical Medical College of Yangzhou University, Subei People's Hospital of Jiangsu Province, Yangzhou, Jiangsu, 225001, China,Co-Corresponding author: Jingcheng Wang, MD, Department of Orthopaedics, Subei People’s Hospital, 98 West Nantong Road, Yangzhou 225001, China;
| | - Ming Pei
- Stem Cell and Tissue Engineering Laboratory, Department of Orthopaedics, West Virginia University, Morgantown, WV, 26506, USA,Exercise Physiology, West Virginia University, Morgantown, WV, 26506, USA,WVU Cancer Institute, Robert C. Byrd Health Sciences Center, West Virginia University, Morgantown, WV, 26506, USA,Corresponding author: Ming Pei MD, PhD, Stem Cell and Tissue Engineering Laboratory, Department of Orthopaedics, West Virginia University, PO Box 9196, 64 Medical Center Drive, Morgantown, WV 26506-9196, USA, Telephone: 304-293-1072; Fax: 304-293-7070;
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Pei M, Aguiar R, Pagels AA, Heimbürger O, Stenvinkel P, Bárány P, Medin C, Jacobson SH, Hylander B, Lindholm B, Qureshi AR. Health-related quality of life as predictor of mortality in end-stage renal disease patients: an observational study. BMC Nephrol 2019; 20:144. [PMID: 31035977 PMCID: PMC6489294 DOI: 10.1186/s12882-019-1318-x] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2018] [Accepted: 03/29/2019] [Indexed: 02/08/2023] Open
Abstract
Background Health-related quality of life (HRQoL) is an important component of patient-centered outcomes and a useful parameter for monitoring quality of care. We assessed HRQoL, its determinants, and associations with mortality in patients with end-stage renal disease (ESRD). Methods Short Form-36 was used to assess HRQoL, its domain components, and physical (PCS) and mental (MCS) composite summary scores in altogether 400 (338 incident and 62 prevalent) dialysis patients with median age 64 years, 37% women, 24% diabetes mellitus (DM), 49% cardiovascular disease (CVD), and median estimated glomerular filtration rate (eGFR) of 5.3 (3.0–9.4) ml/min/1.732. Results were analyzed separately for 338 incident patients starting on hemodialysis (HD; 68%) or peritoneal dialysis (PD; 32%), and 62 prevalent PD patients. Mortality risk was analyzed during up to 60 months (median 28 months). Results Linear multivariate regression analysis showed that in incident dialysis patients, 1-SD higher PCS associated negatively with 1-SD higher age, DM and CVD, and positively with 1-SD higher hemoglobin and sodium (adjusted r2 = 0.17). In 62 prevalent PD patients, 1-SD higher PCS was negatively associated with 1-SD higher age. MCS was not associated to any of the investigated factors. Multivariate Cox regression analysis showed that in incident dialysis patients, 1-SD increase of PCS associated with lower all-cause mortality, hazard ratio 0.65 (95% confidence interval 0.52–0.81), after adjustments for age, sex, DM, CVD, plasma albumin, C-reactive protein and eGFR whereas 1-SD lower MCS did not associate with mortality. In PD patients, neither PCS nor MCS associated with mortality. Conclusions MCS did not associate with any of the investigated clinical factors, whereas lower PCS associated with higher age, CVD, DM, and lower hemoglobin and sodium levels. MCS was not associated with mortality, whereas lower PCS associated with increased mortality risk. These results suggest that HRQoL - in addition to its role as patient-centered outcome - matters also for hard clinical outcomes in ESRD patients. Our knowledge about factors influencing MCS in ESRD patients is limited and should motivate further studies. Electronic supplementary material The online version of this article (10.1186/s12882-019-1318-x) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Ming Pei
- Renal Medicine and Baxter Novum, Clintec, M99, Karolinska University Hospital Huddinge, 141 86, Stockholm, Sweden.,First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Rute Aguiar
- Renal Medicine and Baxter Novum, Clintec, M99, Karolinska University Hospital Huddinge, 141 86, Stockholm, Sweden.,Department of Nephrology, Hospital Espírito Santo, Évora, Portugal
| | - Agneta A Pagels
- Department of Nephrology, Karolinska Institutet and Karolinska University Hospital Solna, Stockholm, Sweden
| | - Olof Heimbürger
- Renal Medicine and Baxter Novum, Clintec, M99, Karolinska University Hospital Huddinge, 141 86, Stockholm, Sweden
| | - Peter Stenvinkel
- Renal Medicine and Baxter Novum, Clintec, M99, Karolinska University Hospital Huddinge, 141 86, Stockholm, Sweden
| | - Peter Bárány
- Renal Medicine and Baxter Novum, Clintec, M99, Karolinska University Hospital Huddinge, 141 86, Stockholm, Sweden
| | - Charlotte Medin
- Department of Nephrology, Karolinska Institutet and Karolinska University Hospital Solna, Stockholm, Sweden
| | - Stefan H Jacobson
- Department of Clinical Sciences, Division of Nephrology, Danderyd University Hospital, Karolinska Institutet, Stockholm, Sweden
| | - Britta Hylander
- Department of Nephrology, Karolinska Institutet and Karolinska University Hospital Solna, Stockholm, Sweden
| | - Bengt Lindholm
- Renal Medicine and Baxter Novum, Clintec, M99, Karolinska University Hospital Huddinge, 141 86, Stockholm, Sweden
| | - Abdul Rashid Qureshi
- Renal Medicine and Baxter Novum, Clintec, M99, Karolinska University Hospital Huddinge, 141 86, Stockholm, Sweden.
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Zhou S, Chen S, Jiang Q, Pei M. Determinants of stem cell lineage differentiation toward chondrogenesis versus adipogenesis. Cell Mol Life Sci 2019; 76:1653-1680. [PMID: 30689010 DOI: 10.1007/s00018-019-03017-4] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2018] [Revised: 12/10/2018] [Accepted: 01/15/2019] [Indexed: 12/12/2022]
Abstract
Adult stem cells, also termed as somatic stem cells, are undifferentiated cells, detected among differentiated cells in a tissue or an organ. Adult stem cells can differentiate toward lineage specific cell types of the tissue or organ in which they reside. They also have the ability to differentiate into mature cells of mesenchymal tissues, such as cartilage, fat and bone. Despite the fact that the balance has been comprehensively scrutinized between adipogenesis and osteogenesis and between chondrogenesis and osteogenesis, few reviews discuss the relationship between chondrogenesis and adipogenesis. In this review, the developmental and transcriptional crosstalk of chondrogenic and adipogenic lineages are briefly explored, followed by elucidation of signaling pathways and external factors guiding lineage determination between chondrogenic and adipogenic differentiation. An in-depth understanding of overlap and discrepancy between these two mesenchymal tissues in lineage differentiation would benefit regeneration of high-quality cartilage tissues and adipose tissues for clinical applications.
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Affiliation(s)
- Sheng Zhou
- Stem Cell and Tissue Engineering Laboratory, Department of Orthopaedics, West Virginia University, 64 Medical Center Drive, PO Box 9196, Morgantown, WV, 26506-9196, USA
- Department of Sports Medicine and Adult Reconstructive Surgery, School of Medicine, Drum Tower Hospital, Nanjing University, 321 Zhongshan Road, Nanjing, 210008, Jiangsu, People's Republic of China
| | - Song Chen
- Department of Orthopaedics, Chengdu Military General Hospital, Chengdu, 610083, Sichuan, People's Republic of China
| | - Qing Jiang
- Department of Sports Medicine and Adult Reconstructive Surgery, School of Medicine, Drum Tower Hospital, Nanjing University, 321 Zhongshan Road, Nanjing, 210008, Jiangsu, People's Republic of China
| | - Ming Pei
- Stem Cell and Tissue Engineering Laboratory, Department of Orthopaedics, West Virginia University, 64 Medical Center Drive, PO Box 9196, Morgantown, WV, 26506-9196, USA.
- Robert C. Byrd Health Sciences Center, WVU Cancer Institute, West Virginia University, Morgantown, WV, 26506, USA.
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Wang Y, Chen S, Yan Z, Pei M. A prospect of cell immortalization combined with matrix microenvironmental optimization strategy for tissue engineering and regeneration. Cell Biosci 2019; 9:7. [PMID: 30627420 PMCID: PMC6321683 DOI: 10.1186/s13578-018-0264-9] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Accepted: 12/21/2018] [Indexed: 12/20/2022] Open
Abstract
Cellular senescence is a major hurdle for primary cell-based tissue engineering and regenerative medicine. Telomere erosion, oxidative stress, the expression of oncogenes and the loss of tumor suppressor genes all may account for the cellular senescence process with the involvement of various signaling pathways. To establish immortalized cell lines for research and clinical use, strategies have been applied including internal genomic or external matrix microenvironment modification. Considering the potential risks of malignant transformation and tumorigenesis of genetic manipulation, environmental modification methods, especially the decellularized cell-deposited extracellular matrix (dECM)-based preconditioning strategy, appear to be promising for tissue engineering-aimed cell immortalization. Due to few review articles focusing on this topic, this review provides a summary of cell senescence and immortalization and discusses advantages and limitations of tissue engineering and regeneration with the use of immortalized cells as well as a potential rejuvenation strategy through combination with the dECM approach.
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Affiliation(s)
- Yiming Wang
- 1Stem Cell and Tissue Engineering Laboratory, Department of Orthopaedics, West Virginia University, PO Box 9196, 64 Medical Center Drive, Morgantown, WV 26506-9196 USA.,2Department of Orthopaedics, Zhongshan Hospital of Fudan University, 180 Fenglin Road, Shanghai, 200032 China
| | - Song Chen
- 3Department of Orthopaedics, Chengdu Military General Hospital, Chengdu, 610083 Sichuan China
| | - Zuoqin Yan
- 2Department of Orthopaedics, Zhongshan Hospital of Fudan University, 180 Fenglin Road, Shanghai, 200032 China
| | - Ming Pei
- 1Stem Cell and Tissue Engineering Laboratory, Department of Orthopaedics, West Virginia University, PO Box 9196, 64 Medical Center Drive, Morgantown, WV 26506-9196 USA.,4WVU Cancer Institute, Robert C. Byrd Health Sciences Center, West Virginia University, Morgantown, WV 26506 USA
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43
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Pei M. Matrix microenvironment mediated fate determination of stem cells. Biomed Res 2019. [DOI: 10.4066/biomedicalresearch-c1-024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Abstract
Health-related quality of life (HRQOL) is an important aspect of patients´ health that should be an integral part of the evaluation of patient-centered outcomes, not least because HRQOL associates with patients´ morbidity and mortality. This applies also to chronic kidney disease patients, including those dependent on renal replacement therapies, the type of which may influence patients´ perception of HRQOL. Several studies have addressed HRQOL in chronic kidney disease patients undergoing renal replacement therapies, especially transplanted patients and hemodialysis patients, while publications concerning peritoneal dialysis (PD) patients are scarcer. This review describes some of the methods used to assess HRQOL, factors influencing HRQOL in PD patients, HRQOL in PD vs hemodialysis, and the relation between HRQOL and patient outcomes. We conclude that assessment of HRQOL-often neglected at present-should be included as a standard measure of patient-centered outcomes and when monitoring the quality and effectiveness of renal care including PD treatment.
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Affiliation(s)
- Rute Aguiar
- Division of Renal Medicine and Baxter Novum, Department of Clinical Science, Intervention and Technology, Karolinska Institutet, Campus Flemingsberg, Stockholm, Sweden.,Nephrology, Hospital Espírito Santo, Évora, Portugal
| | - Ming Pei
- Division of Renal Medicine and Baxter Novum, Department of Clinical Science, Intervention and Technology, Karolinska Institutet, Campus Flemingsberg, Stockholm, Sweden.,First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Abdul Rashid Qureshi
- Division of Renal Medicine and Baxter Novum, Department of Clinical Science, Intervention and Technology, Karolinska Institutet, Campus Flemingsberg, Stockholm, Sweden
| | - Bengt Lindholm
- Division of Renal Medicine and Baxter Novum, Department of Clinical Science, Intervention and Technology, Karolinska Institutet, Campus Flemingsberg, Stockholm, Sweden
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Abstract
Although preconditioning strategies are growing areas of interest for therapies targeting intervertebral discs (IVDs), it is unknown whether the Wnt signals previously implicated in chondrogenesis, Wnt3A, Wnt5A, and Wnt11, play key roles in the promotion of human nucleus pulposus (NP) cell redifferentiation. In this study, NP cells isolated from herniated disc patients were transduced with lentiviral vectors to overexpress the WNT3A, WNT5A, or WNT11 genes, or CRISPR associated protein 9 (Cas9)/single-guide RNA (sgRNA) vectors to knock out these genes. Following expansion, transduced NP cells were induced for redifferentiation toward the NP phenotype. The overexpression of specific WNT factors led to increases in both glycosaminoglycan (GAG) deposition and expression of redifferentiation genes. These effects were attenuated by knockout of the same WNT genes. These results indicate that specific WNT signals can regulate the expression of redifferentiation genes, unequally impact GAG deposition, and contribute to the redifferentiation of human NP cells. © 2018 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 36:3196-3207, 2018.
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Affiliation(s)
- Tyler Pizzute
- Stem Cell and Tissue Engineering Laboratory, Department of Orthopaedics, West Virginia University, Morgantown, WV, USA;,Exercise Physiology, West Virginia University, Morgantown, WV, USA
| | - Fan He
- Orthopaedic Institute, Medical College, Soochow University, Suzhou, China
| | - Xiao-Bing Zhang
- State Key Laboratory of Experimental Hematology, Tianjin, China;,Department of Medicine, Loma Linda University, Loma Linda, CA, USA;,Co-Corresponding Author: Xiao-Bing Zhang PhD, Division of Regenerative Medicine MC 1528B, Department of Medicine, Loma Linda University, 11234 Anderson Street, Loma Linda, CA 92350, USA,
| | - Ming Pei
- Stem Cell and Tissue Engineering Laboratory, Department of Orthopaedics, West Virginia University, Morgantown, WV, USA;,Exercise Physiology, West Virginia University, Morgantown, WV, USA;,WVU Cancer Institute, Robert C. Byrd Health Sciences Center, West Virginia University, Morgantown, WV, USA,Corresponding author: Ming Pei MD, PhD, Stem Cell and Tissue Engineering Laboratory, Department of Orthopaedics, West Virginia University, PO Box 9196, One Medical Center Drive, Morgantown, WV 26506-9196, USA, Telephone: 304-293-1072; Fax: 304-293-7070;
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Sun Y, Chen S, Pei M. Comparative advantages of infrapatellar fat pad: an emerging stem cell source for regenerative medicine. Rheumatology (Oxford) 2018; 57:2072-2086. [PMID: 29373763 PMCID: PMC6256334 DOI: 10.1093/rheumatology/kex487] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2017] [Revised: 11/13/2017] [Indexed: 12/15/2022] Open
Abstract
Growing evidence indicates that infrapatellar fat pad (IPFP)-derived stem cells (IPFSCs) exert robust proliferation capacities and multilineage differentiation potentials. However, few papers summarize the advantages that the IPFP and IPFSCs have in regenerative medicine. In this review we delineate the development and anatomy of the IPFP by comparing it with an adjacent fibrous tissue, synovium, and a more frequently harvested fat depot, subcutaneous adipose tissue. Furthermore, we explore the similarities and differences of stem cells from these three tissues in terms of IPFSCs, synovium-derived stem cells and subcutaneous adipose tissue-derived stem cells in proliferation capacity and tri-lineage differentiation potentials, including chondrogenesis, osteogenesis and adipogenesis. Finally, we highlight the advantages of IPFSCs in regenerative medicine, such as the abundant accessibility and the ability to resist inflammation and senescence, two hurdles for cell-based tissue regeneration. Considering the comparative advantages of IPFSCs, the IPFP can serve as an excellent stem cell source for regenerative medicine, particularly for cartilage regeneration.
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Affiliation(s)
- Yu Sun
- Department of Orthopaedics, Orthopaedics Institute, Subei People’s Hospital of Jiangsu Province, Yangzhou, Jiangsu, China
- Stem Cell and Tissue Engineering Laboratory, Department of Orthopaedics, West Virginia University, Morgantown, WV, USA
| | - Song Chen
- Stem Cell and Tissue Engineering Laboratory, Department of Orthopaedics, West Virginia University, Morgantown, WV, USA
- Department of Orthopaedics, Chengdu Military General Hospital, Chengdu, Sichuan, China
| | - Ming Pei
- Stem Cell and Tissue Engineering Laboratory, Department of Orthopaedics, West Virginia University, Morgantown, WV, USA
- Exercise Physiology, West Virginia University, Morgantown, WV, USA
- Mary Babb Randolph Cancer Center, Robert C. Byrd Health Sciences Center, West Virginia University, Morgantown, WV, USA
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Chen X, Yan J, He F, Zhong D, Yang H, Pei M, Luo ZP. Mechanical stretch induces antioxidant responses and osteogenic differentiation in human mesenchymal stem cells through activation of the AMPK-SIRT1 signaling pathway. Free Radic Biol Med 2018; 126:187-201. [PMID: 30096433 PMCID: PMC6165675 DOI: 10.1016/j.freeradbiomed.2018.08.001] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/02/2018] [Revised: 07/24/2018] [Accepted: 08/01/2018] [Indexed: 12/12/2022]
Abstract
Mesenchymal stem cells (MSCs) are promising cell sources for regenerative medicine. Growing evidence has indicated that mechanical stimuli are crucial for their lineage-specific differentiation. However, the effect of mechanical loading on redox balance and the intracellular antioxidant system in MSCs was unknown. In this study, human bone marrow-derived MSCs (BM-MSCs) were subjected to cyclic stretch at the magnitude of 2.5%, 5%, and 10%. Cell proliferation, intracellular reactive oxygen species (ROS), expression of antioxidant enzymes, and osteogenic differentiation were evaluated. RNA was extracted and subjected to DNA microarray analysis. Sirtinol and compound C were used to investigate the underlying mechanisms involved silent information regulator type 1 (SIRT1) and AMP-activated protein kinase (AMPK). Our results showed that mechanical stretch at appropriate magnitudes increased cell proliferation, up-regulated extracellular matrix organization, and down-regulated matrix disassembly. After 3 days of stretch, intracellular ROS in BM-MSCs were decreased but the levels of antioxidant enzymes, especially superoxide dismutase 1 (SOD1), were up-regulated. Osteogenesis was improved by 5% stretch rather than 10% stretch, as evidenced by increased matrix mineralization and osteogenic marker gene expression. The expression of SIRT1 and phosphorylation of AMPK were enhanced by mechanical stretch; however, inhibition of SIRT1 or AMPK abrogated the stretch-induced antioxidant effect on BM-MSCs and inhibited the stretch-mediated osteogenic differentiation. Our findings reveal that mechanical stretch induced antioxidant responses, attenuated intracellular ROS, and improved osteogenesis of BM-MSCs. The stretch-induced antioxidant effect was through activation of the AMPK-SIRT1 signaling pathway. Our findings demonstrated that appropriate mechanical stimulation can improve MSC antioxidant functions and benefit bone regeneration.
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Affiliation(s)
- Xi Chen
- Orthopaedic Institute, Medical College, Soochow University, Suzhou 215007, China; Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Suzhou 215006, China; School of Biology and Basic Medical Sciences, Medical College, Soochow University, Suzhou 215123, China
| | - Jinku Yan
- Orthopaedic Institute, Medical College, Soochow University, Suzhou 215007, China; Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Suzhou 215006, China
| | - Fan He
- Orthopaedic Institute, Medical College, Soochow University, Suzhou 215007, China; Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Suzhou 215006, China.
| | - Dongyan Zhong
- Orthopaedic Institute, Medical College, Soochow University, Suzhou 215007, China; Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Suzhou 215006, China
| | - Huilin Yang
- Orthopaedic Institute, Medical College, Soochow University, Suzhou 215007, China; Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Suzhou 215006, China
| | - Ming Pei
- Stem Cell and Tissue Engineering Laboratory, Department of Orthopaedics, West Virginia University, Morgantown, WV, USA
| | - Zong-Ping Luo
- Orthopaedic Institute, Medical College, Soochow University, Suzhou 215007, China; Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Suzhou 215006, China.
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Chen X, Li M, Yan J, Liu T, Pan G, Yang H, Pei M, He F. Alcohol Induces Cellular Senescence and Impairs Osteogenic Potential in Bone Marrow-Derived Mesenchymal Stem Cells. Alcohol Alcohol 2018; 52:289-297. [PMID: 28339869 PMCID: PMC5397879 DOI: 10.1093/alcalc/agx006] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2016] [Accepted: 01/09/2017] [Indexed: 12/19/2022] Open
Abstract
Aims Chronic and excessive alcohol consumption is a high-risk factor for osteoporosis. Bone marrow-derived mesenchymal stem cells (BM-MSCs) play an important role in bone formation; however, they are vulnerable to ethanol (EtOH). The purpose of this research was to investigate whether EtOH could induce premature senescence in BM-MSCs and subsequently impair their osteogenic potential. Methods Human BM-MSCs were exposed to EtOH ranging from 10 to 250 mM. Senescence-associated β-galactosidase (SA-β-gal) activity, cell cycle distribution, cell proliferation and reactive oxygen species (ROS) were evaluated. Mineralization and osteoblast-specific gene expression were evaluated during osteogenesis in EtOH-treated BM-MSCs. To investigate the role of silent information regulator Type 1 (SIRT1) in EtOH-induced senescence, resveratrol (ResV) was used to activate SIRT1 in EtOH-treated BM-MSCs. Results EtOH treatments resulted in senescence-associated phenotypes in BM-MSCs, such as decreased cell proliferation, increased SA-β-gal activity and G0/G1 cell cycle arrest. EtOH also increased the intracellular ROS and the expression of senescence-related genes, such as p16INK4α and p21. The down-regulated levels of SIRT1 accompanied with suppressed osteogenic differentiation were confirmed in EtOH-treated BM-MSCs. Activation of SIRT1 by ResV partially counteracted the effects of EtOH by decreasing senescence markers and rescuing the inhibited osteogenesis. Conclusion EtOH treatments induced premature senescence in BM-MSCs in a dose-dependent manner that was responsible for EtOH-impaired osteogenic differentiation. Activation of SIRT1 was effective in ameliorating EtOH-induced senescence phenotypes in BMSCs and could potentially lead to a new strategy for clinically preventing or treating alcohol-induced osteoporosis. Short summary Ethanol (EtOH) treatments induce premature senescence in marrow-derived mesenchymal stem cells in a dose-dependent manner that is responsible for EtOH-impaired osteogenic differentiation. Activation of SIRT1 is effective in ameliorating EtOH-induced senescence phenotypes, which potentially leads to a new strategy for clinically treating alcohol-induced osteoporosis.
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Affiliation(s)
- Xi Chen
- Department of Orthopaedics, The First Affiliated Hospital of Soochow University, No. 188 Shizi Street, Suzhou 215153, Jiangsu, China.,Orthopaedic Institute, Medical College, Soochow University, No. 708 Renmin Road, Suzhou 215007, China.,School of Biology and Basic Medical Sciences, Medical College, Soochow University, No. 199 Renai Road, Suzhou 215123, China
| | - Mao Li
- Department of Orthopaedics, The First Affiliated Hospital of Soochow University, No. 188 Shizi Street, Suzhou 215153, Jiangsu, China.,Orthopaedic Institute, Medical College, Soochow University, No. 708 Renmin Road, Suzhou 215007, China
| | - Jinku Yan
- Department of Orthopaedics, The First Affiliated Hospital of Soochow University, No. 188 Shizi Street, Suzhou 215153, Jiangsu, China.,Orthopaedic Institute, Medical College, Soochow University, No. 708 Renmin Road, Suzhou 215007, China
| | - Tao Liu
- Department of Orthopaedics, The First Affiliated Hospital of Soochow University, No. 188 Shizi Street, Suzhou 215153, Jiangsu, China
| | - Guoqing Pan
- Department of Orthopaedics, The First Affiliated Hospital of Soochow University, No. 188 Shizi Street, Suzhou 215153, Jiangsu, China.,Orthopaedic Institute, Medical College, Soochow University, No. 708 Renmin Road, Suzhou 215007, China
| | - Huilin Yang
- Department of Orthopaedics, The First Affiliated Hospital of Soochow University, No. 188 Shizi Street, Suzhou 215153, Jiangsu, China.,Orthopaedic Institute, Medical College, Soochow University, No. 708 Renmin Road, Suzhou 215007, China
| | - Ming Pei
- Stem Cell and Tissue Engineering Laboratory, Department of Orthopaedics and Division of Exercise Physiology, West Virginia University, PO Box 9196, One Medical Center Drive, Morgantown, WV 26505-9196, USA
| | - Fan He
- Department of Orthopaedics, The First Affiliated Hospital of Soochow University, No. 188 Shizi Street, Suzhou 215153, Jiangsu, China.,Orthopaedic Institute, Medical College, Soochow University, No. 708 Renmin Road, Suzhou 215007, China
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Pei M, Wei L, Hu S, Yang B, Si J, Yang H, Zhai J. Probiotics, prebiotics and synbiotics for chronic kidney disease: protocol for a systematic review and meta-analysis. BMJ Open 2018; 8:e020863. [PMID: 30056379 PMCID: PMC6067341 DOI: 10.1136/bmjopen-2017-020863] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/28/2017] [Revised: 05/07/2018] [Accepted: 06/08/2018] [Indexed: 11/03/2022] Open
Abstract
INTRODUCTION There is a growing interest in probiotic, prebiotic and synbiotic supplements for patients with chronic kidney disease (CKD). However, a systematic review and evaluation is lacking. The purpose of the present study is to assess the efficacy and safety of probiotics, prebiotics and synbiotics for non-dialysis or non-renal transplant patients with CKD. METHODS AND ANALYSIS An extensive literature search will be undertaken to identify potentially eligible studies from electronic databases including PubMed (1946 to present), EMBASE (1974 to present), Web of Science (1900 to present) and the Cochrane Central Register of Controlled Trials (CENTRAL, all years). No language restriction will be applied to the search. Both parallel and crossover randomised controlled trials will be included. The risk of bias of each included study will be assessed using the Cochrane Risk of Bias Tool. The primary outcome measures are uraemic toxins. Secondary outcomes include kidney function, adverse cardiovascular events, all-cause mortality, cause-specific death, progression to end-stage kidney disease, quality of life, gastrointestinal function and adverse events. Data will be synthesised using appropriate statistical methods. The quality of evidence for each outcome will be assessed using the Grading of Recommendations Assessment, Development and Evaluation approach. ETHICS AND DISSEMINATION No ethical approval is required as no primary data will be collected. We will publish findings from this systematic review in a peer-reviewed scientific journal, and the data set will be made freely available. PROSPERO REGISTRATION NUMBER CRD42017079177.
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Affiliation(s)
- Ming Pei
- Department of Nephrology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Lijuan Wei
- Graduate College, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Shouci Hu
- Graduate College, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Bo Yang
- Department of Nephrology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Jinhua Si
- Library, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Hongtao Yang
- Department of Nephrology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Jingbo Zhai
- Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
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50
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Wang Y, Chen G, Yan J, Chen X, He F, Zhu C, Zhang J, Lin J, Pan G, Yu J, Pei M, Yang H, Liu T. Upregulation of SIRT1 by Kartogenin Enhances Antioxidant Functions and Promotes Osteogenesis in Human Mesenchymal Stem Cells. Oxid Med Cell Longev 2018; 2018:1368142. [PMID: 30116472 PMCID: PMC6079379 DOI: 10.1155/2018/1368142] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/17/2018] [Revised: 05/25/2018] [Accepted: 06/10/2018] [Indexed: 12/29/2022]
Abstract
Osteoarthritis is a chronic degenerative joint disease involving both articular cartilage and subchondral bone. Kartogenin (KGN) was recently identified to improve in vivo cartilage repair; however, its effect on bone formation is unknown. The aim of this study was to investigate the effect of KGN on antioxidant properties and osteogenic differentiation of bone marrow-derived mesenchymal stem cells (BM-MSCs). Human BM-MSCs were treated with KGN at concentrations ranging from 10-8 M to 10-6 M. Our results indicated that KGN improved cell proliferation and attenuated intracellular reactive oxygen species. The levels of antioxidant enzymes and osteogenic differentiation of BM-MSCs were enhanced by KGN in a dose-dependent manner. Furthermore, KGN-treated BM-MSCs showed upregulation of silent information regulator type 1 (SIRT1) and increased phosphorylation of adenosine 5'-monophosphate-activated protein kinase (AMPK), indicating that KGN activated the AMPK-SIRT1 signaling pathway in BM-MSCs. Inhibition of SIRT1 by nicotinamide reversed the antioxidant effect of KGN on BM-MSCs and suppressed osteogenic differentiation. In conclusion, our results demonstrated that KGN improved intracellular antioxidant properties and promoted osteogenic differentiation of BM-MSCs by activating the AMPK-SIRT1 signaling pathway. Thus, KGN may have the potential for not only articular cartilage repair but also the clinical application of MSCs in bone tissue engineering.
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Affiliation(s)
- Yifan Wang
- Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Soochow University, Suzhou 215006, China
- Orthopaedic Institute, Medical College, Soochow University, Suzhou 215007, China
| | - Guangdong Chen
- Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Soochow University, Suzhou 215006, China
- Orthopaedic Institute, Medical College, Soochow University, Suzhou 215007, China
| | - Jinku Yan
- Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Soochow University, Suzhou 215006, China
- Orthopaedic Institute, Medical College, Soochow University, Suzhou 215007, China
| | - Xi Chen
- Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Soochow University, Suzhou 215006, China
- Orthopaedic Institute, Medical College, Soochow University, Suzhou 215007, China
- School of Biology and Basic Medical Sciences, Medical College, Soochow University, Suzhou 215123, China
| | - Fan He
- Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Soochow University, Suzhou 215006, China
- Orthopaedic Institute, Medical College, Soochow University, Suzhou 215007, China
| | - Caihong Zhu
- Orthopaedic Institute, Medical College, Soochow University, Suzhou 215007, China
| | - Junxin Zhang
- Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Soochow University, Suzhou 215006, China
- Orthopaedic Institute, Medical College, Soochow University, Suzhou 215007, China
| | - Jun Lin
- Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Soochow University, Suzhou 215006, China
| | - Guoqing Pan
- Institute for Advanced Materials, School of Materials Science and Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Jia Yu
- Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Soochow University, Suzhou 215006, China
| | - Ming Pei
- Stem Cell and Tissue Engineering Laboratory, Department of Orthopaedics and Division of Exercise Physiology, West Virginia University, Morgantown, WV 26506, USA
| | - Huilin Yang
- Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Soochow University, Suzhou 215006, China
- Orthopaedic Institute, Medical College, Soochow University, Suzhou 215007, China
| | - Tao Liu
- Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Soochow University, Suzhou 215006, China
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