51
|
Sui B, Chen C, Kou X, Li B, Xuan K, Shi S, Jin Y. Pulp Stem Cell-Mediated Functional Pulp Regeneration. J Dent Res 2019; 98:27-35. [PMID: 30372659 DOI: 10.1177/0022034518808754] [Citation(s) in RCA: 79] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
The preservation of vital dental pulp with vasculature and nerve components remains one of the most significant challenges in modern dentistry. Due to the immense potential for neurovascularization, mesenchymal stem cell (MSC) transplantation has shown emerging promise in regenerative medicine and dental translational practice. Actually, pulp mesenchymal stem cells, including postnatal dental pulp stem cells (from permanent teeth) and stem cells from human exfoliated deciduous teeth, possess unique properties based on their origins from neural crest or glial cells. Furthermore, they reside in a neurovascular niche and have the potential for neurogenesis, angiogenesis, and neurovascular inductive activity. According to current pulp regeneration strategies, pulp stem cell-mediated approaches to regeneration have demonstrated convincing evidence that they can rebuild the complex histologic structure of native pulp in situ with highly organized physiologic patterns or even achieve de novo regeneration of complete dental pulp tissues. More importantly, recent clinical studies emphasized in situ neurovascularization outcomes in successful regeneration of vitalized pulp via pulp stem cell transplantation. In this review, we summarize recent breakthroughs in pulp stem cell-mediated pulp regeneration, emphasizing the crucial achievement of neurovascularization. This functional pulp regeneration represents an innovative and promising approach for future regenerative endodontics.
Collapse
|
52
|
Yao T, Feng D, Pan MH, Cheng YP, Li CX, Wang J, Feng YL, Shi J, Su T, Chen Q, Shi S, Wang SP. [Related factors and interaction on HIV/HCV co-infection of patients access to methadone maintenance treatment]. ZHONGHUA LIU XING BING XUE ZA ZHI = ZHONGHUA LIUXINGBINGXUE ZAZHI 2018; 39:631-635. [PMID: 29860807 DOI: 10.3760/cma.j.issn.0254-6450.2018.05.017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To estimate the prevalence of HIV/HCV co-infection and explore the influence factors and their interaction on HIV/HCV co-infection of patient's access to methadone maintenance treatment (MMT). Methods: A face to face interviews were conducted among 750 patients at two MMT clinics in Guangxi Zhuang Autonomous Region. The questionnaires information included demographic characteristics, HIV and HCV infection status, history of drug abuse, urine test for morphine, high risk sex behaviors, needle sharing, dropped out etc. Methods of χ(2) test one-way, multivariate logistic regression and interactions were used to analyze the related factors of HIV/HCV co-infection. Results: The study subjects included 750 participants, 18.31% (127/691) of patients were co-infected with HIV and HCV. The HIV/HCV co-infection rate in patients who shared needles with others or dropped out of treatment was 35.84% (81/226) and 19.88% (64/322) respectively, which were higher than those who have never shared needles or dropped out (9.89%, 46/465 and 17.07%, 63/369). Logistic regression analysis results showed that after adjusted for confounding factors, patients who shared needles (OR=4.50, 95%CI: 2.72-7.43) and dropped out of treatment (OR=1.71, 95%CI: 1.04-2.80) were more likely to be infected with HIV/HCV. Interaction analysis showed that sharing needles and dropping out of treatment exist additive effect on co-infection of HIV and HCV (RERI=4.21, AP=0.44, SI=1.95). Conclusions: Needle sharing and dropping out of treatment are associated with HIV/HCV co-infection. Health education, psychological counseling and other measures should be taken to reduce needle sharing and dropping out of MMT.
Collapse
|
53
|
Xu Y, Shi S, Yan H, Xu X, Yuan J, Liao L. Isolation and identification of respiratory tract and intestinal microflora of Meriones meridianus in a conventional animal facility. Animal Model Exp Med 2018; 1:322-327. [PMID: 30891582 PMCID: PMC6388063 DOI: 10.1002/ame2.12045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2018] [Accepted: 11/01/2018] [Indexed: 11/29/2022] Open
Abstract
BACKGROUND Culturable bacterial species from the respiratory tract and ileocecal junction of Meriones meridianus (midday gerbils) captured in the Xinjiang Luntai area were isolated and identified to confirm the microflora and develop approaches for biological purification of laboratory animals and relevant microbial precautions. METHODS Bacteria from respiratory tracts and ileocecal junctions of 30 wild M. meridianus were harvested and isolated by inoculation into culture media. Isolated strains were confirmed by mass spectrometry and 16S rRNA sequencing. RESULTS Thirty-nine bacterial species from 20 families and 27 genera were identified and isolated from wild M. meridianus. Typical bacteria were Enterobacteriaceae, Enterococcus, and Staphylococcus aureus, and the most common microflora were Vibrio, Staphylococcus aureus, and Pseudomonas aeruginosa. CONCLUSION Wild M. meridianus carries multiple bacteria, most of which are pathogenic or conditional pathogens. This study provides a basis for the development of animal models and laboratory animals from wild M. meridianus.
Collapse
|
54
|
Shi S, Afilalo J, Popma J, Khabbaz K, Laham R, Guibone K, Lipsitz L, Kim D. UTILITY OF A GENERAL PROGNOSTIC SCORE IN IDENTIFYING PATIENTS WITH POOR OUTCOMES AFTER AORTIC VALVE REPLACEMENT. Innov Aging 2018. [DOI: 10.1093/geroni/igy023.3183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
55
|
Shi S, Han J, Hu Y, Dai W, Zhang C, Waddington G, Adams R. The validity of functional movement screening (FMS) in predicting injuries in elite short track speed skating athletes. J Sci Med Sport 2018. [DOI: 10.1016/j.jsams.2018.09.141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
|
56
|
Wang X, Cao Z, Shi X, Yang Z, Tong Y, Shi S, Han J, Gordon W, Adams R. Wrist proprioception and range of motion, grip strength and years of training in professional youth table tennis players. J Sci Med Sport 2018. [DOI: 10.1016/j.jsams.2018.09.178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
57
|
Zhang Y, Shi S, Xu Q, Zhang Q, Shanti RM, Le AD. SIS-ECM Laden with GMSC-Derived Exosomes Promote Taste Bud Regeneration. J Dent Res 2018; 98:225-233. [PMID: 30335555 DOI: 10.1177/0022034518804531] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Oral cancer has a high annual incidence rate all over the world, and the tongue is the most frequently affected anatomic structure. The current standard care is ablative surgery of malignant neoplasm, followed by tongue reconstruction with free flap. However, such reconstructive modalities with postsurgery radiotherapy or chemotherapy can hardly support the functional recovery of the tongue-particularly, functional taste bud regeneration-in reconstructed areas, thus seriously affecting patients' prognosis and life quality. Using a critical-sized tongue defect model in rats, we show that combinatory transplantation of small intestinal submucosa-extracellular matrix (SIS-ECM) with gingival mesenchymal stem cells (GMSCs) or their derivative exosomes promoted tongue lingual papillae recovery and taste bud regeneration as evidenced by increased expression of CK14, CK8, and markers for type I, II, and III taste bud cells (NTPdase 2, PLC-β2, and AADC, respectively). In addition, our results indicate that GMSCs or their derivative exosomes could increase BDNF expression, a growth factor that plays an important role in the proliferation and differentiation of epithelial basal progenitor cells into taste bud cells. Meanwhile, we showed an elevated expression level of Shh-which is essential for development, homeostasis, and maintenance of the taste bud organ-in wounded areas of the tongue among animals treated with GMSC/SIS-ECM or exosome/SIS-ECM as compared with SIS-ECM control. Moreover, our data show that GMSCs or their derivative exosomes promoted innervation of regenerated taste buds, as evidenced by elevated expressions of neurofilament and P2X3 at the injury areas. Together, our findings indicate that GMSC/SIS-ECM and exosome/SIS-ECM constructs can facilitate taste bud regeneration and reinnervation with promising potential application in postsurgery tongue reconstruction of patients with tongue cancer.
Collapse
|
58
|
Zhang Y, Shi S, Yu X. Nab-paclitaxel plus gemcitabine for unresectable pancreatic cancer: A pooled meta-analysis. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy282.111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
59
|
Wang H, Tian W, Bi R, Ren Y, He H, Shi S, Shan B, Wang Q. Screening for inherited cancer syndromes in Chinese patients with endometrial cancer. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy285.173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
60
|
Liu F, Shi S, Zhu L, Xing Y, Lei J, Tian W, Wang J, Guan G. P6247Perturbations of the anti-ageing hormone Klotho in patients with diagonal earlobe crease. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy566.p6247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
61
|
Shi S, Tian L, Ma L, Tian C. Community Structure of Rhizomicrobiomes in Four Medicinal Herbs and Its Implication on Growth Management. Microbiology (Reading) 2018. [DOI: 10.1134/s0026261718030098] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
|
62
|
Dong F, Shi S, Liu J. 0994 Sleep Disturbance Mediates The Relationship Between Maternal Parenting And The Schizotypal Personality Traits. Sleep 2018. [DOI: 10.1093/sleep/zsy061.993] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
63
|
Zhang K, Li N, Chen Z, Shao K, Zhou F, Zhang C, Mu X, Wan J, Li B, Feng X, Shi S, Xiong M, Cao K, Wang X, Huang C, He J. High Expression of Nuclear Factor of Activated T Cells in Chinese Primary Non-Small Cell Lung Cancer Tissues. Int J Biol Markers 2018; 22:221-5. [DOI: 10.1177/172460080702200310] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Purpose Nuclear factor of activated T cells (NFAT) has been reported to be involved in the development of various types of cancer including adenocarcinoma of the breast. This research was the first to investigate NFAT protein expression in primary non-small cell lung cancer (NSCLC) tissues from Chinese patients. Methods NFAT protein expression was determined in 130 surgically resected primary NSCLC and matched normal tissues by immunohistochemical analysis. The association between NFAT expression and clinical categorical variables was further analyzed with the SPSS software. Results We found that NFAT expression was much higher in 85 tumor tissues (65.4%) and lower in 45 tumor tissues (34.6%) compared with the matched normal tissues. Further statistical analysis by the chi-square test showed that high expression of NFAT proteins was significantly associated with tumor differentiation (p=0.045), invasion (p=0.031), histology (p<0.0001), tumor size (p=0.038) and cigarette smoking history (p=0.024). However, there was no correlation between the expression of NFAT proteins and pTNM classification, and no difference in 5-year survival rate between patients with high or low expression of NFAT proteins. Multivariate logistic regression analysis for the correlation between NFAT protein expression levels and various characteristics showed a significant association with histology (p=0.008, OR=0.273). Conclusion Our results revealed that high NFAT expression was present in Chinese NSCLCs and that NFAT expression might be involved in the process of human lung cancer development.
Collapse
|
64
|
Ye L, Xu F, Shi S, Zeng Z, Jin X, Huang Y, Lu C, Gu J, Ge D, He J. A SUV max-based propensity matched analysis of stereotactic body radiotherapy versus surgery in stage I non-small cell lung cancer: unveiling the role of 18F-FDG PET/CT in clinical decision-making. Clin Transl Oncol 2018; 20:1026-1034. [PMID: 29327241 DOI: 10.1007/s12094-017-1819-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2017] [Accepted: 12/09/2017] [Indexed: 12/25/2022]
Abstract
BACKGROUND The value of maximum standard uptake value (SUVmax) was overlooked in current studies comparing stereotactic body radiotherapy (SBRT) versus surgery for stage I non-small cell lung cancer (NSCLC). Herein, we aimed to compare the 3-year outcomes based on patients for whom SUVmax were available, and to explore the role of SUVmax in clinical decision-making. METHODS From January 2010 to June 2016, data of eligible patients were collected. Patient variables and clinical outcomes were compared in both unmatched and matched groups using propensity score matching (PSM). Multivariate analysis was performed for predictors of poor outcome. The relationship between treatment approach and survival outcome was also evaluated in subgroup patients stratified by SUVmax level. RESULTS A total of 425 patients treated with either surgery (325) or SBRT (100) were included. Patients receiving SBRT were significantly older, had a higher level of SUVmax and were more likely to have tumor of centrally located. Multivariate analysis showed that SUVmax and tumor size were significant predictors for 3-year OS, LRC, and PFS, while better PFS was also related to peripheral tumor and surgery. The result of PSM analysis also showed that compared to SBRT, surgery could only achieve better PFS. Subgroup analysis indicated that surgery had added advantage of 3-year LRC and PFS for patients in high SUVmax group (SUVmax > 8), but not in low SUVmax group. CONCLUSIONS The study found a superior PFS after surgery while OS and LRC did not differ between SBRT and surgery. Surgery should be recommended for tumor of high SUVmax.
Collapse
|
65
|
Xie X, Shao X, Ma W, Zhao D, Shi S, Li Q, Lin Y. Overcoming drug-resistant lung cancer by paclitaxel loaded tetrahedral DNA nanostructures. NANOSCALE 2018; 10:5457-5465. [PMID: 29484330 DOI: 10.1039/c7nr09692e] [Citation(s) in RCA: 105] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Drug-loaded tetrahedron DNA nanostructures and their cytotoxic effect on drug-resistant cells have been studied.
Collapse
|
66
|
Shi S, Tatsuki F, Ueda H. A potential pharmacological target of insomnia: the molecules involved in the Ca2+-dependent hyperpolarization pathways play a pivotal role in the regulation of sleep homeostasis. Sleep Med 2017. [DOI: 10.1016/j.sleep.2017.11.894] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
67
|
Kon K, Shi S, Yamada R, Matsumoto N, Ode K, Tone D, Sumiyama K, Ueda H. The role of CA2+-dependent hyperpolarization pathway in sleep duration. Sleep Med 2017. [DOI: 10.1016/j.sleep.2017.11.490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
68
|
Shi S, Bian Y, Zhang L, Chen C. A method for assessing the performance of nanofiber films coated on window screens in reducing residential exposures to PM 2.5 of outdoor origin in Beijing. INDOOR AIR 2017; 27:1190-1200. [PMID: 28439983 DOI: 10.1111/ina.12391] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2017] [Accepted: 04/18/2017] [Indexed: 05/14/2023]
Abstract
Recently, many nanofiber films have been developed for air filtration applications. These films exhibit high PM2.5 (particles with aerodynamic diameters less than 2.5 μm) removal efficiency and relatively low air resistance. Thus, coating window screens with nanofiber films may be able to mitigate residential exposure to PM2.5 of outdoor origin. This study developed a method for assessing the performance of nanofiber window screens in reducing residential exposure to PM2.5 of outdoor origin in Beijing. The results show that the use of selected nanofiber window screens all the time throughout the year can reduce the mean value of the annual average indoor PM2.5 of outdoor origin by 64%-66% for Beijing residences. However, the mean value of annual harmonic average air exchange rate when the windows are open was also reduced from 2.34 h-1 to 0.27-0.35 h-1 , which is far below the national standard. If the nanofiber window screens were used only when the outdoor PM2.5 pollution was severe, the screens had less of an impact on residential natural ventilation, but the national standard still could not be met. Hence, more efforts are needed to further reduce the air resistance of nanofiber window screens in order to ensure proper residential ventilation.
Collapse
|
69
|
Liu L, BI N, Wu L, Ding X, Men Y, Zhou W, Li L, Zhang W, Shi S, Song Y, Wang L. MicroRNA-29c Functions as a Tumor Suppressor by Targeting VEGFA in Lung Adenocarcinoma. Int J Radiat Oncol Biol Phys 2017. [DOI: 10.1016/j.ijrobp.2017.06.2057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
70
|
Lv Q, Lin HC, Shi S, Sun X, Christensen RN, Blue TE, Yoder G, Wilson D, Sabharwall P. Experimental Study of DRACS Thermal Performance in a Low-Temperature Test Facility. NUCL TECHNOL 2017. [DOI: 10.13182/nt16-41] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
|
71
|
Chen B, Fan G, Sun W, Shang X, Shi S, Wang S, Lv G, Wu C. Usefulness of diffusion-tensor MRI in the diagnosis of Parkinson variant of multiple system atrophy and Parkinson's disease: a valuable tool to differentiate between them? Clin Radiol 2017; 72:610.e9-610.e15. [DOI: 10.1016/j.crad.2017.02.005] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2016] [Revised: 12/21/2016] [Accepted: 02/03/2017] [Indexed: 11/26/2022]
|
72
|
Li G, Zhou T, Lin S, Shi S, Lin Y. Nanomaterials for Craniofacial and Dental Tissue Engineering. J Dent Res 2017; 96:725-732. [PMID: 28463533 DOI: 10.1177/0022034517706678] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
|
73
|
Jen Y, Shi S. EP-1048: Phantom Tumour Phenomenon in Nasopharyngeal Carcinoma Patients after Radiotherapy. Radiother Oncol 2017. [DOI: 10.1016/s0167-8140(17)31484-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
74
|
Griessenauer CJ, Gupta R, Shi S, Alturki A, Motiei-Langroudi R, Adeeb N, Ogilvy CS, Thomas AJ. Collar Sign in Incompletely Occluded Aneurysms after Pipeline Embolization: Evaluation with Angiography and Optical Coherence Tomography. AJNR Am J Neuroradiol 2017; 38:323-326. [PMID: 28056454 DOI: 10.3174/ajnr.a5010] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2016] [Accepted: 09/15/2016] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Flow diversion with the Pipeline Embolization Device has emerged as an attractive treatment for cerebral aneurysms. Processes involved in aneurysm occlusion include changes in intra-aneurysmal hemodynamics and endothelialization of the device. Here, we call attention to a radiographic sign not previously reported that is detected in incompletely occluded aneurysms after treatment with the Pipeline Embolization Device at angiographic follow-up and referred to as the "collar sign." MATERIALS AND METHODS A retrospective review of all patients who underwent placement of a Pipeline Embolization Device for cerebral aneurysms between January 2014 and May 2016 was performed. All aneurysms found to show the collar sign at follow-up were included. Optical coherence tomography was performed in 1 case. RESULTS One hundred thirty-five aneurysms were treated in 115 patients. At angiographic follow-up, 17 (10.7%) aneurysms were found to be incompletely occluded. Ten (58.8%) of these aneurysms (average diameter, 7.9 ± 5.0 mm) were found to have the collar sign at angiographic follow-up (average, 5.5 ± 1.0 months). Four (40.0%) of the aneurysms underwent a second angiographic follow-up (average, 11.0 ± 0.9 months) after treatment, and again were incompletely occluded and showing the collar sign. Two patients underwent retreatment with a second Pipeline Embolization Device. Optical coherence tomography showed great variability of endothelialization at the proximal end of the Pipeline Embolization Device. CONCLUSIONS The collar sign appears to be indicative of endothelialization, but continued blood flow into the aneurysm. This is unusual given the processes involved in aneurysm occlusion after placement of the Pipeline Embolization Device and has not been previously reported.
Collapse
|
75
|
Shi S, Xu J, Zhang B, Ji S, Xu W, Liu J, Jin K, Liang D, Liang C, Liu L, Liu C, Qin Y, Yu X. VEGF Promotes Glycolysis in Pancreatic Cancer via HIF1α Up-Regulation. Curr Mol Med 2016; 16:394-403. [PMID: 26980697 DOI: 10.2174/1566524016666160316153623] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2016] [Revised: 02/27/2016] [Accepted: 03/11/2016] [Indexed: 11/22/2022]
Abstract
BACKGROUND Vascular endothelial growth factor (VEGF) is highly expressed in many types of tumors, including pancreatic cancer. Tumor cellderived VEGF promotes angiogenesis and tumor progression. However, the role of VEGF in glucose metabolism remains unclear. OBJECTIVE We investigated the role and the underlying mechanism of VEGF in the glucose metabolism of pancreatic cancer cells. METHOD Pancreatic cancer cells were stimulated with VEGF165 for 1 or 2 h. The oxygen consumption rates (OCR) and extracellular acidification rates (ECAR) were measured using the Seahorse XF96 Extracellular Flux Analyzer. Glycolytic enzymes were detected by quantitative real-time PCR. Neuropilin 1 (NRP1) was silenced by shRNA in order to investigate its role in VEGF-induced glycolysis. Immunohistochemistry (IHC) was performed to identify the correlation among VEGF, NRP1 and hypoxia inducible factor 1α (HIF1α) in pancreatic cancer tissues. RESULTS VEGF stimulation led to a metabolic transition from mitochondrial oxidative phosphorylation to glycolysis in pancreatic cancer. HIF1α and NRP1 protein levels were both increased after VEGF stimulation. The down-regulation of NRP1 reduced glycolysis in pancreatic cancer cells. NRP1 and VEGF levels both correlated with HIF1α expression in pancreatic tumor tissues. CONCLUSION VEGF enhances glycolysis in pancreatic cancer via HIF1α up-regulation. NRP1 plays a key role in VEGF-induced glycolysis.
Collapse
|
76
|
Shi S, Wan JF, Zuo XW, Chen NL, Zhang JH, Rong YH. A chemical-structural model for coherent martensite/parent interface in Mn-based antiferromagnetic shape memory alloys. Phys Chem Chem Phys 2016; 18:29923-29934. [PMID: 27761534 DOI: 10.1039/c6cp06415a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The martensite/parent coherent interface of Mn-based shape memory alloys (SMAs) is a significant part in the research of their martensitic transformation, reversible shape memory effect and magnetic shape memory effect. In the present work, a chemical-structural model was proposed to calculate the martensite/parent coherent interfacial energy of Mn-X (X = Cu, Fe) alloys. In this model, the coherent heterophase interfacial energy consists of chemical and structural parts. Resulting from the formation process of the heterophase interface, the chemical interfacial energy is expressed as the incremental value of bond energy, while the structural part is obtained by calculating the interfacial strain energy. The results show that the structural interfacial energy plays the chief role in the total interfacial energy, and the total interfacial energy decreases as the temperature rises when the alloy composition is fixed. In addition, the preferred orientation has noteworthy influence on the total interfacial energy. Using the proposed model, interfacial energy, interfacial entropy, interfacial enthalpy and interfacial heat capacity are found to be correlated with temperature and interface preferred orientation. Furthermore, the influences of alloy composition, modulus softening, and the index of the habit plane on the results were discussed.
Collapse
|
77
|
Yu X, Liang C, Qin Y, Zhang B, Ji S, Shi S, Xu W, Liu J, Xiang JF, Liang D, Hu Q, Ni Q, Xu J. Oncogenic KRAS Targets MUC16/CA125 in Pancreatic Ductal Adenocarcinoma. Mol Cancer Res 2016. [DOI: 10.1158/1541-7786.mcr-16-0296-t] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
78
|
Yim Y, Gandhi M, Guerin A, Ionescu-Ittu R, Pivneva I, Shi S, Wu E. Impact of severe adverse events during second-line therapy on healthcare costs in patients with advanced non-small cell lung cancer (aNSCLC). Ann Oncol 2016. [DOI: 10.1093/annonc/mdw383.27] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
79
|
Yang R, Liu Y, Shi S. Hydrogen Sulfide Regulates Homeostasis of Mesenchymal Stem Cells and Regulatory T Cells. J Dent Res 2016; 95:1445-1451. [PMID: 27432317 DOI: 10.1177/0022034516659041] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Hydrogen sulfide (H2S) has long been known as a toxic gas. However, recently accumulated evidence suggests that H2S contributes to a variety of physiologic and pathologic processes. Endogenous H2S production is regulated by multiple enzymes that are differentially expressed in the cardiovascular, neuronal, immune, renal, respiratory, gastrointestinal, reproductive, liver, and endocrine systems. Alteration of H2S metabolism may affect multiple signaling pathways and tissue homeostasis. The growing number of diverse targets for which H2S serves as a gasotransmitter has been extensively reviewed elsewhere. In this review, the authors discuss current emerging evidence that H2S regulates mesenchymal stem cell and T-cell functions.
Collapse
|
80
|
Wang Q, Su X, Jiang X, Dong X, Fan Y, Zhang J, Yu C, Gao W, Shi S, Jiang J, Jiang W, Wei T. iTRAQ technology-based identification of human peripheral serum proteins associated with depression. Neuroscience 2016; 330:291-325. [PMID: 27268281 DOI: 10.1016/j.neuroscience.2016.05.055] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2015] [Revised: 05/25/2016] [Accepted: 05/27/2016] [Indexed: 12/26/2022]
Abstract
Clinical depression is one of the most common and debilitating psychiatric disorders and contributes to increased risks of disability and suicide. Differentially expressed serum proteins may serve as biomarkers for diagnosing depression. In this study, samples from depressed patients are aggregated into a pool (22×100μL serum was used) and samples from healthy volunteers are aggregated into the other pool (20×100μL serum was used). Isobaric tag for relative and absolute quantitation (iTRAQ) technology and tandem mass spectrometry were employed to screen for differentially expressed serum protein in two separate pools. We identified 472 proteins in the serum samples, and 154 of these presented differences in abundance between the depression and control groups. Ingenuity pathway analysis (IPA) was employed to identify the highest scoring proteins in signaling pathway networks. Finally, four differentially expressed proteins were validated by enzyme-linked immuno sorbent assay (ELISA). Proteomic studies revealed that levels of c-reaction protein (CRP), inter-alpha-trypsin inhibitor heavy chain H4 (ITIH4), serum amyloid A1 (SAA1) and angiopoietin-like 3 (ANGPTL3) were substantially increased in depressed patients compared with the healthy control group. Therefore, these differentially expressed proteins may represent potential markers for the clinical diagnosis of depression.
Collapse
|
81
|
Liu S, Jin Y, Shi S. Autophagy guarantees stemness of muscle stem cells by maintaining quiescence. Oral Dis 2016; 23:139-140. [PMID: 27224217 DOI: 10.1111/odi.12510] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
82
|
Zhang B, Xu J, Li C, Shi S, Ji S, Xu W, Liu J, Jin K, Liang D, Liang C, Liu L, Liu C, Qin Y, Yu X. MBD1 is an Epigenetic Regulator of KEAP1 in Pancreatic Cancer. Curr Mol Med 2016; 16:404-11. [DOI: 10.2174/1566524016666160316154150] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2016] [Revised: 03/11/2016] [Accepted: 03/04/2016] [Indexed: 11/22/2022]
|
83
|
He J, Zeng Z, Shi S. 119P: Feasibility and efficacy of helical IMRT for stage III non-small cell lung cancer in comparison with conventionally fractionated 3D-CRT. J Thorac Oncol 2016. [DOI: 10.1016/s1556-0864(16)30232-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
84
|
Shi J, Wang H, Guan H, Shi S, Li Y, Wu X, Li N, Yang C, Bai X, Cai W, Yang F, Wang X, Su L, Zheng Z, Hu D. IL10 inhibits starvation-induced autophagy in hypertrophic scar fibroblasts via cross talk between the IL10-IL10R-STAT3 and IL10-AKT-mTOR pathways. Cell Death Dis 2016; 7:e2133. [PMID: 26962683 PMCID: PMC4823945 DOI: 10.1038/cddis.2016.44] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2015] [Revised: 01/29/2016] [Accepted: 02/02/2016] [Indexed: 12/19/2022]
Abstract
Hypertrophic scar (HS) is a serious skin fibrotic disease characterized by excessive hypercellularity and extracellular matrix (ECM) component deposition. Autophagy is a tightly regulated physiological process essential for cellular maintenance, differentiation, development, and homeostasis. Previous studies show that IL10 has potential therapeutic benefits in terms of preventing and reducing HS formation. However, no studies have examined IL10-mediated autophagy during the pathological process of HS formation. Here, we examined the effect of IL10 on starvation-induced autophagy and investigated the molecular mechanism underlying IL10-mediated inhibition of autophagy in HS-derived fibroblasts (HSFs) under starvation conditions. Immunostaining and PCR analysis revealed that a specific component of the IL10 receptor, IL10 alpha-chain (IL10Rα), is expressed in HSFs. Transmission electron microscopy and western blot analysis revealed that IL10 inhibited starvation-induced autophagy and induced the expression of p-AKT and p-STAT3 in HSFs in a dose-dependent manner. Blocking IL10R, p-AKT, p-mTOR, and p-STAT3 using specific inhibitors (IL10RB, LY294002, rapamycin, and cryptotanshinone, respectively) showed that IL10 inhibited autophagy via IL10Rα-mediated activation of STAT3 (the IL10R-STAT3 pathway) and by directly activating the AKT-mTOR pathway. Notably, these results suggest that IL10-mediated inhibition of autophagy is facilitated by the cross talk between STAT3, AKT, and mTOR; in other words, the IL10-IL10R-STAT3 and IL10-AKT-mTOR pathways. Finally, the results also indicate that mTOR-p70S6K is the molecule upon which these two pathways converge to induce IL10-mediated inhibition of autophagy in starved HSFs. In summary, the findings reported herein shed light on the molecular mechanism underlying IL10-mediated inhibition of autophagy and suggest that IL10 is a potential therapeutic agent for the treatment of HS.
Collapse
|
85
|
Barraud C, Bouzehouane K, Deranlot C, Kim DJ, Rakshit R, Shi S, Arabski J, Bowen M, Beaurepaire E, Boukari S, Petroff F, Seneor P, Mattana R. Phthalocyanine based molecular spintronic devices. Dalton Trans 2016; 45:16694-16699. [DOI: 10.1039/c6dt02467j] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Spin-dependent hybridization and spin excitation induce multiple magnetoresistance effects in phthalocyanine based spintronic devices.
Collapse
|
86
|
Shi S, Dursch TJ, Borup RL, Weber AZ, Kusoglu A. Effect of Hygrothermal Ageing on PFSA Ionomers' Structure/Property Relationship. ACTA ACUST UNITED AC 2015. [DOI: 10.1149/06917.1017ecst] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
87
|
Lei J, Kim JI, Shi S, Zhang X, Machaidze Z, Lee S, Schuetz C, Martins PN, Oura T, Farkash EA, Rosales IA, Smith RN, Stott R, Lee KM, Soohoo J, Boskovic S, Cappetta K, Nadazdin OM, Yamada Y, Yeh H, Kawai T, Sachs DH, Benichou G, Markmann JF. Pilot Study Evaluating Regulatory T Cell-Promoting Immunosuppression and Nonimmunogenic Donor Antigen Delivery in a Nonhuman Primate Islet Allotransplantation Model. Am J Transplant 2015; 15:2739-49. [PMID: 26014796 DOI: 10.1111/ajt.13329] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2014] [Revised: 03/01/2015] [Accepted: 03/20/2015] [Indexed: 01/25/2023]
Abstract
The full potential of islet transplantation will only be realized through the development of tolerogenic regimens that obviate the need for maintenance immunosuppression. Here, we report an immunotherapy regimen that combines 1-ethyl-3-(3'-dimethylaminopropyl)-carbodiimide (ECDI)-treated donor lymphoid cell infusion (ECDI-DLI) with thymoglobulin, anti-interleukin-6 receptor antibody and rapamycin to achieve prolonged allogeneic islet graft survival in a nonhuman primate (NHP) model. Prolonged graft survival is associated with Treg expansion, donor-specific T cell hyporesponsiveness and a transient absence of donor-specific alloantibody production during the period of graft survival. This regimen shows promise for clinical translation.
Collapse
|
88
|
Shi S, Wang Q. Comparative analysis of two predictive softwares for safety of traditional Chinese medicine: A case study on Licorice. Toxicol Lett 2015. [DOI: 10.1016/j.toxlet.2015.08.579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
89
|
Shi S, Reisberg S, Anquetin G, Noël V, Pham M, Piro B. General approach for electrochemical detection of persistent pharmaceutical micropollutants: Application to acetaminophen. Biosens Bioelectron 2015; 72:205-10. [DOI: 10.1016/j.bios.2015.05.010] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2015] [Revised: 05/02/2015] [Accepted: 05/05/2015] [Indexed: 11/17/2022]
|
90
|
Liu M, Mollica L, Regan J, Hawkins S, McGuiness H, Vetro K, Garczarek U, Shi S, Vasudevan V, Ananthapadmanabhan KP. Modified Corneosurfametry as a new accelerated high-throughput ex vivo methodology for predicting cleanser effects towards human skin. Int J Cosmet Sci 2015; 38:178-86. [PMID: 26352535 DOI: 10.1111/ics.12273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2015] [Accepted: 08/23/2015] [Indexed: 11/28/2022]
Abstract
BACKGROUND Corneosurfametry (CSM) was originally developed as a tool to predict irritation potential of cleansers. In this method, surface skin stripped using cyanoacrylate is contacted with surfactants/products, rinsed and stained with toluidine blue and basic fuschin dyes. The intensity of staining increases with increases in irritation potential of surfactant. Our objective was to modify the CSM technique to achieve better control of the tape stripping process. Another objective was to correlate the modified CSM (MCSM) with a traditional in-vivo forearm controlled application test (FCAT) for mildness and to explore its utility to assess the state of corneum after a clinical test. METHODS Surface skin cells were tape stripped from forearms of volunteers with D-Squame Adhesive Discs. Discs were treated with a 10% solution of the product in a 96-plate well for 10 min, rinsed, dried and treated with basic fuschin-toluidine blue dye solution, rinsed and dried again. Forearm Controlled Application Test (FCAT) was based on a published protocol. Tape strips obtained after product treatment were also analyzed by the MCSM procedure without additional product treatment. RESULTS Mildness/barrier damage assessed from in-vivo FCAT showed a similar ranking to the MCSM results. MCSM, TEWL and Erythema analysis of between-treatment differences showed a good correlation indicating that barrier damage seen in in-vivo studies can be predicted from ex-vivo MCSM studies. MCSM analysis of tape strips after the FCAT study showed that the damage decreased with increase in tape strip number. A moisturizing body wash (MBW) with mild surfactants showed the least damage in all layers. In contrast, harsh dish washing liquid showed significantly higher damage down to several layers. Another MBW with petrolatum in a harsher base showed damage almost similar to that of the harsh dish washing liquid in the surface layers. Thus, the MCSM was able to show underlying damage which would have been normally masked by the deposited petrolatum. CONCLUSION The MCSM assay was shown to be a valuable tool for accelerated high throughput evaluation of mildness of surfactants and fully formulated products. MCSM can also be used to assess the state of the corneum after a product treatment.
Collapse
|
91
|
Chen XH, Ling XM, Shi S. microRNA-106a induces the proliferation and apoptosis of glioma cells through regulating JNK/MAPK pathway. EUROPEAN REVIEW FOR MEDICAL AND PHARMACOLOGICAL SCIENCES 2015; 19:3412-3417. [PMID: 26439036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
OBJECTIVE To investigate the expression of microRNA-106a (miRNA-106a) in the brain tissue and the plasma of glioma patients, and explore the mechanism underlying the effect of miRNA-106a on the proliferation and apoptosis of glioma cells. PATIENTS AND METHODS Brain tissues from 42 glioma patients admitted in our institution were included in study group, whereas normal brain tissues collected from 10 patients undergoing brain tissue resection due to decompression or exposure during cerebral surgery. Quantitative fluorescent RT-PCR (QF RT-PCR) was performed to measure miRNA-106a mRNA levels in the brain tissue and peripheral blood of patients in two groups. Human M059K glioma cells were transfected with miRNA-106a mimic and inhibitor, and the proliferation and apoptosis of glioma cells were analyzed. In addition, JNK/MAPK in glioma cells was examined at mRNA and protein levels. RESULTS Compared with the normal population, miRNA-106a expression was significantly increased in the brain tissue of glioma patients (p < 0.05). Besides, miRNA-106a expression level was significantly elevated in the plasma of peripheral blood of glioma patients (p < 0.05). After the interference of miRNA-106a in M059K glioma cells, the proliferation of glioma cells was significantly reduced. However, the apoptotic regulatory factor, Bcl-2, was significantly increased, and JNK/MAPK protein level was significantly decreased. Overexpression of miRNA-106a in glioma cells resulted in significant increase in the proliferation of glioma cells and JNK/MAPK protein level, but obvious suppression in Bcl-2 protein level. CONCLUSIONS Elevated expression of miRNA-106a plays a crucial role in the development and progression of glioma, probably by promoting the proliferation and suppressing the apoptosis of glioma cells through the JNK/MAPK signaling pathway.
Collapse
|
92
|
Ma Y, Bao L, Wang H, Shi S. A multi-center study on the prophylactic application of antibiotics in aseptic operations. GENETICS AND MOLECULAR RESEARCH 2015; 14:2356-64. [PMID: 25867382 DOI: 10.4238/2015.march.27.21] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
To understand the application of antibacterial agents in aseptic operations and to provide evidence for their rational use and management, the antibiotic use statuses of six types of aseptic operations (306 cases from 4 tertiary hospitals) were retrospectively analyzed. Of 312 patients, 306 (65.08%) were treated with antibacterial agents in the perioperative period. Four categories of antibiotics including cephalosporins, penicillins, nitroimidazoles, and fluoroquinolones were administered (descending sequence). Administration time: preoperative >2 h, 15 cases; preoperative 0.5-2 h, 20 cases; postoperative: 265 cases. Drug withdrawal time: postoperative 1-3 days: 33 cases; 3-7 days: 255 cases; 7-15 days: 12 cases. The prophylactic use of antibacterial agents in aseptic operations suffers from non-strict mastered medication indication, improper drug selection, aimless drug combinations, inappropriate administration timing, and over long medication duration.
Collapse
|
93
|
Shi S, Bao ZF, Liu Y, Zhang DD, Chen X, Jiang LM, Zhong M. Comparison ofin vivodental pulp responses to capping with iRoot BP Plus and mineral trioxide aggregate. Int Endod J 2015; 49:154-60. [DOI: 10.1111/iej.12439] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2014] [Accepted: 02/03/2015] [Indexed: 11/28/2022]
|
94
|
Wang L, Liu S, Zhao Y, Liu D, Liu Y, Chen C, Karray S, Shi S, Jin Y. Osteoblast-induced osteoclast apoptosis by fas ligand/FAS pathway is required for maintenance of bone mass. Cell Death Differ 2015; 22:1654-64. [PMID: 25744024 DOI: 10.1038/cdd.2015.14] [Citation(s) in RCA: 67] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2014] [Revised: 01/05/2015] [Accepted: 01/19/2015] [Indexed: 12/29/2022] Open
Abstract
The interplay between osteoblasts and osteoclasts has a crucial role in maintaining bone homeostasis. In this study, we reveal that osteoblasts are capable of inducing osteoclast apoptosis by FAS ligand (FASL)/FAS signaling. Conditional knockout of FASL in osteoblasts results in elevated osteoclast numbers and activity, along with reduced bone mass, suggesting that osteoblast-produced FASL is required to maintain physiological bone mass. More interestingly, we show that osteoblasts from ovariectomized (OVX) osteoporotic mice exhibit decreased FASL expression that results from the IFN-γ- and TNF-α-activated NF-κB pathway, leading to reduced osteoclast apoptosis and increased bone resorption. Systemic administration of either IFN-γ or TNF-α ameliorates the osteoporotic phenotype in OVX mice and rescues FASL expression in osteoblasts. In addition, ovariectomy induces more significant bone loss in FASL conditional knockout mice than in control group with increased osteoclast activity in which the levels of RANKL and OPG remain unchanged. Taken together, this study suggests that osteoblast-induced osteoclast apoptosis via FASL/FAS signaling is a previously unrecognized mechanism that has an important role in the maintenance of bone mass in both physiological conditions and OVX osteoporosis.
Collapse
|
95
|
Xue Y, Wang L, Xia D, Li Q, Gao S, Dong M, Cai T, Shi S, He L, Hu K, Mao T, Duan X. Dental Abnormalities Caused by Novel Compound Heterozygous CTSK Mutations. J Dent Res 2015; 94:674-81. [PMID: 25731711 DOI: 10.1177/0022034515573964] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Cathepsin K (CTSK) is an important protease responsible for degrading type I collagen, osteopontin, and other bone matrix proteins. The mutations in the CTSK gene can cause pycnodysostosis (OMIM 265800), a rare autosomal recessive bone dysplasia. Patients with pycnodysostosis have been reported to present specific dental abnormalities; however, whether these dental abnormalities are related to dysfunctional CTSK has never been reported. Here we investigated the histologic changes of cementum and alveolar bone in a pycnodysostosis patient, caused by novel compound heterozygous mutations in the CTSK gene (c.87 G>A p.W29X and c.848 A>G p.Y283C). The most impressive manifestations in tooth were extensive periradicular high-density clumps with unclear periodontal space by orthopantomography examination and micro-computed tomography scanning analysis. Hematoxylin/eosin and toluidine blue staining and atomic force microscopy analysis showed that the cementum became significantly thickened, softened, and full of cementocytes. The disorganized bone structure was the main character of alveolar bone. The p.W29X mutation may represent the loss-of-function allele with an earlier termination codon in the precursor CTSK polypeptide. Residue Y283 is highly conserved among papain-like cysteine proteases. Three-dimensional structure modeling analysis found that the loss of the hydroxybenzene residue in the Y283C mutation would interrupt the hydrogen network and possibly affect the self-cleavage of the CTSK enzyme. Furthermore, p.Y283C mutation did not affect the mRNA and protein levels of overexpressed CTSK in COS-7 system but did reduce CTSK enzyme activity. In conclusion, the histologic and ultrastructural changes of cementum and alveolar bone might be affected by CTSK mutation via reduction of its enzyme activity (clinical trial registration: ChiCTR-TNC-10000876).
Collapse
|
96
|
Ezeoke M, Tong K, Shi S. A Practical Approach For Modelling The Electromagnetic Radar Signature Of Barefaced Terrain For Remote Sensing. INTERNATIONAL JOURNAL OF COMPUTATIONAL METHODS AND EXPERIMENTAL MEASUREMENTS 2014. [DOI: 10.2495/cmem-v2-n4-403-419] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
|
97
|
Walker MD, Shi S, Russo JJ, Liu XS, Zhou B, Zhang C, Liu G, McMahon DJ, Bilezikian JP, Guo XE. A trabecular plate-like phenotype is overrepresented in Chinese-American versus Caucasian women. Osteoporos Int 2014; 25:2787-95. [PMID: 25069706 DOI: 10.1007/s00198-014-2816-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/02/2014] [Accepted: 07/11/2014] [Indexed: 10/25/2022]
Abstract
UNLABELLED This study used extreme phenotype selection to define two trabecular bone phenotypes in a cohort of Chinese-American and Caucasian women. A trabecular plate-predominant phenotype is more common in Chinese-Americans while the rod-predominant phenotype is more typical of Caucasians. The robustness of these phenotypic associations with respect to lifestyle factors suggests that this trait may have a genetic basis and that these phenotypes can be utilized in future genetic studies. INTRODUCTION Compared to Caucasians, Chinese-Americans have more plate-like trabecular bone when measured by individual trabecula segmentation (ITS). These findings suggest a phenotypic difference between the races, which may be amenable to genetic analysis. We sought to identify a single ITS plate trait to pursue in genetic studies by conducting an extreme phenotype selection strategy to numerically define two distinct phenotypes-plate-like and rod-like-and determine whether the selected phenotypic associations were independent of lifestyle factors in order to conduct future genetic studies. METHODS A previously described cohort of 146 Chinese-American and Caucasian women with high-resolution peripheral quantitative computed tomography imaging and ITS analyses were studied with logistic regression and receiver operator characteristic analyses. RESULTS The tibial plate-to-rod (TPR) ratio was the best ITS discriminator of race. Using extreme phenotypic selection, two TPR ratio phenotypes were defined numerically: plate-like as a TPR ratio value in the highest quartile (≥1.336) and rod-like as a TPR ratio value in the lowest quartile (≤0.621). Women with a plate-like phenotype were 25.7 times more likely (95 % CI 7.3-90.1) to be Chinese-American than women with rod-like morphology. After controlling for constitutional and lifestyle covariates, women in the highest vs. lowest TPR ratio quartile were 85.0 times more likely (95 % CI 12.7-568.0) to be Chinese-American. CONCLUSION Using extreme phenotype selection, we defined a plate- and rod-like trabecular bone phenotype for the TPR ratio trait. The former phenotype is more common in Chinese-American women, while the latter is more typical of Caucasian women. The robustness of these phenotypic associations after controlling for differences in constitution and lifestyle suggest that the TPR ratio may have a genetic basis and that the extreme phenotypes defined in this analysis can be utilized for future studies.
Collapse
|
98
|
Shi S, Lu Y, Qin Y, Li W, Cheng H, Xu Y, Xu J, Long J, Liu L, Liu C, Yu X. miR-1247 is correlated with prognosis of pancreatic cancer and inhibits cell proliferation by targeting neuropilins. Curr Mol Med 2014; 14:316-27. [PMID: 24588767 DOI: 10.2174/1566524014666140228120014] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2013] [Revised: 01/21/2014] [Accepted: 01/31/2014] [Indexed: 11/22/2022]
Abstract
Accumulating evidence indicates that microRNAs (miRNAs) have great potential as tumor biomarkers and therapeutic agents owing to their functions in tumorigenesis and cancer progression. Aberrant expression of miR-1247 has been found in several cancers and is predicted to play an important role in the pathological processes of pancreatic cancer by miRNA-regulated network analysis. We investigated the expression profile of miR-1247 in pancreatic cancer tissue microarray by in situ hybridization and found that miR-1247 was significantly down-regulated in pancreatic cancer tissues compared to matched benign tissues. High levels of miR-1247 expression were positively correlated with higher overall and recurrence free survival in pancreatic cancer patients, while negatively correlated with tumor grade. Using in vitro and in vivo models, we demonstrated that increased expression of miR-1247 inhibited proliferation, tumorigenicity, colony formation and triggered G0/G1 cell cycle arrest in pancreatic cancer cells. Moreover, we confirmed that neuropilin1 (NRP1) and neuropilin2 (NRP2) are direct targets of miR-1247 by western blot and luciferase reporter assay. Further studies indicated that low dose all trans retinoic acid (ATRA) can induce redifferentiation and restoration of miR-1247 in pancreatic cancer cells. These findings suggest that miR-1247, a novel tumor suppressor, can act as a potential biomarker and therapeutic agent for pancreatic cancer.
Collapse
|
99
|
Liu Y, Chen C, Liu S, Liu D, Xu X, Chen X, Shi S. Acetylsalicylic acid treatment improves differentiation and immunomodulation of SHED. J Dent Res 2014; 94:209-18. [PMID: 25394850 DOI: 10.1177/0022034514557672] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Stem cells from exfoliated deciduous teeth (SHED) possess multipotent differentiation and immunomodulatory properties. They have been used for orofacial bone regeneration and autoimmune disease treatment. In this study, we show that acetylsalicylic acid (ASA) treatment is able to significantly improve SHED-mediated osteogenic differentiation and immunomodulation. Mechanistically, ASA treatment upregulates the telomerase reverse transcriptase (TERT)/Wnt/β-catenin cascade, leading to improvement of SHED-mediated bone regeneration, and also upregulates TERT/FASL signaling, leading to improvement of SHED-mediated T-cell apoptosis and ameliorating disease phenotypes in dextran sodium sulfate-induced colitis mice. These data indicate that ASA treatment is a practical approach to improving SHED-based cell therapy.
Collapse
|
100
|
Li Y, Aggen S, Shi S, Gao J, Li Y, Tao M, Zhang K, Wang X, Gao C, Yang L, Liu Y, Li K, Shi J, Wang G, Liu L, Zhang J, Du B, Jiang G, Shen J, Zhang Z, Liang W, Sun J, Hu J, Liu T, Wang X, Miao G, Meng H, Li Y, Hu C, Li Y, Huang G, Li G, Ha B, Deng H, Mei Q, Zhong H, Gao S, Sang H, Zhang Y, Fang X, Yu F, Yang D, Liu T, Chen Y, Hong X, Wu W, Chen G, Cai M, Song Y, Pan J, Dong J, Pan R, Zhang W, Shen Z, Liu Z, Gu D, Wang X, Liu X, Zhang Q, Flint J, Kendler KS. Subtypes of major depression: latent class analysis in depressed Han Chinese women. Psychol Med 2014; 44:3275-3288. [PMID: 25065911 PMCID: PMC4180813 DOI: 10.1017/s0033291714000749] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
BACKGROUND Despite substantial research, uncertainty remains about the clinical and etiological heterogeneity of major depression (MD). Can meaningful and valid subtypes be identified and would they be stable cross-culturally? METHOD Symptoms at their lifetime worst depressive episode were assessed at structured psychiatric interview in 6008 women of Han Chinese descent, age ⩾ 30 years, with recurrent DSM-IV MD. Latent class analysis (LCA) was performed in Mplus. RESULTS; Using the nine DSM-IV MD symptomatic A criteria, the 14 disaggregated DSM-IV criteria and all independently assessed depressive symptoms (n = 27), the best LCA model identified respectively three, four and six classes. A severe and non-suicidal class was seen in all solutions, as was a mild/moderate subtype. An atypical class emerged once bidirectional neurovegetative symptoms were included. The non-suicidal class demonstrated low levels of worthlessness/guilt and hopelessness. Patterns of co-morbidity, family history, personality, environmental precipitants, recurrence and body mass index (BMI) differed meaningfully across subtypes, with the atypical class standing out as particularly distinct. CONCLUSIONS MD is a clinically complex syndrome with several detectable subtypes with distinct clinical and demographic correlates. Three subtypes were most consistently identified in our analyses: severe, atypical and non-suicidal. Severe and atypical MD have been identified in multiple prior studies in samples of European ethnicity. Our non-suicidal subtype, with low levels of guilt and hopelessness, may represent a pathoplastic variant reflecting Chinese cultural influences.
Collapse
|